externals: Update dynarmic to 8bcd46b7

* Ensure 128-bit ordered load/stores are atomic
* Always order exclusive load/stores

README.md

@@ -77,6 +77,6 @@ If you wish to support us a different way, please join our [Discord](https://dis
 
 ## License
 
-yuzu is licensed under the GPLv2 (or any later version). Refer to the [license.txt](https://github.com/yuzu-emu/yuzu/blob/master/license.txt) file.
+yuzu is licensed under the GPLv3 (or any later version). Refer to the [license.txt](https://github.com/yuzu-emu/yuzu/blob/master/license.txt) file.
 
-The [Skyline-Emulator Team](https://github.com/skyline-emu/skyline) is exempt from GPLv2 for the contributions from all these contributors [FernandoS27](https://github.com/FernandoS27), [lioncash](https://github.com/lioncash), [bunnei](https://github.com/bunnei), [ReinUsesLisp](https://github.com/ReinUsesLisp), [Morph1984](https://github.com/Morph1984), [ogniK5377](https://github.com/ogniK5377), [german77](https://github.com/german77), [ameerj](https://github.com/ameerj), [Kelebek1](https://github.com/Kelebek1) and [lat9nq](https://github.com/lat9nq). They may only use the code from these contributors under Mozilla Public License, version 2.0.
+The [Skyline-Emulator Team](https://github.com/skyline-emu/skyline) is exempt from GPLv3 for the contributions from all these contributors [FernandoS27](https://github.com/FernandoS27), [lioncash](https://github.com/lioncash), [bunnei](https://github.com/bunnei), [ReinUsesLisp](https://github.com/ReinUsesLisp), [Morph1984](https://github.com/Morph1984), [ogniK5377](https://github.com/ogniK5377), [german77](https://github.com/german77), [ameerj](https://github.com/ameerj), [Kelebek1](https://github.com/Kelebek1) and [lat9nq](https://github.com/lat9nq). They may only use the code from these contributors under Mozilla Public License, version 2.0.

license.txt

@@ -1,285 +1,626 @@
-		    GNU GENERAL PUBLIC LICENSE
-		       Version 2, June 1991
+                    GNU GENERAL PUBLIC LICENSE
+                       Version 3, 29 June 2007
 
- Copyright (C) 1989, 1991 Free Software Foundation, Inc.,
- 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ Copyright (C) 2007 Free Software Foundation, Inc. <https://fsf.org/>
  Everyone is permitted to copy and distribute verbatim copies
  of this license document, but changing it is not allowed.
 
-			    Preamble
+                            Preamble
 
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-Foundation's software and to any other program whose authors commit to
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+
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+  All other non-permissive additional terms are considered "further
+restrictions" within the meaning of section 10.  If the Program as you
+received it, or any part of it, contains a notice stating that it is
+governed by this License along with a term that is a further
+restriction, you may remove that term.  If a license document contains
+a further restriction but permits relicensing or conveying under this
+License, you may add to a covered work material governed by the terms
+of that license document, provided that the further restriction does
+not survive such relicensing or conveying.
+
+  If you add terms to a covered work in accord with this section, you
+must place, in the relevant source files, a statement of the
+additional terms that apply to those files, or a notice indicating
+where to find the applicable terms.
+
+  Additional terms, permissive or non-permissive, may be stated in the
+form of a separately written license, or stated as exceptions;
+the above requirements apply either way.
+
+  8. Termination.
+
+  You may not propagate or modify a covered work except as expressly
+provided under this License.  Any attempt otherwise to propagate or
+modify it is void, and will automatically terminate your rights under
+this License (including any patent licenses granted under the third
+paragraph of section 11).
+
+  However, if you cease all violation of this License, then your
+license from a particular copyright holder is reinstated (a)
+provisionally, unless and until the copyright holder explicitly and
+finally terminates your license, and (b) permanently, if the copyright
+holder fails to notify you of the violation by some reasonable means
+prior to 60 days after the cessation.
+
+  Moreover, your license from a particular copyright holder is
+reinstated permanently if the copyright holder notifies you of the
+violation by some reasonable means, this is the first time you have
+received notice of violation of this License (for any work) from that
+copyright holder, and you cure the violation prior to 30 days after
+your receipt of the notice.
+
+  Termination of your rights under this section does not terminate the
+licenses of parties who have received copies or rights from you under
+this License.  If your rights have been terminated and not permanently
+reinstated, you do not qualify to receive new licenses for the same
+material under section 10.
+
+  9. Acceptance Not Required for Having Copies.
+
+  You are not required to accept this License in order to receive or
+run a copy of the Program.  Ancillary propagation of a covered work
+occurring solely as a consequence of using peer-to-peer transmission
+to receive a copy likewise does not require acceptance.  However,
+nothing other than this License grants you permission to propagate or
+modify any covered work.  These actions infringe copyright if you do
+not accept this License.  Therefore, by modifying or propagating a
+covered work, you indicate your acceptance of this License to do so.
+
+  10. Automatic Licensing of Downstream Recipients.
+
+  Each time you convey a covered work, the recipient automatically
+receives a license from the original licensors, to run, modify and
+propagate that work, subject to this License.  You are not responsible
+for enforcing compliance by third parties with this License.
+
+  An "entity transaction" is a transaction transferring control of an
+organization, or substantially all assets of one, or subdividing an
+organization, or merging organizations.  If propagation of a covered
+work results from an entity transaction, each party to that
+transaction who receives a copy of the work also receives whatever
+licenses to the work the party's predecessor in interest had or could
+give under the previous paragraph, plus a right to possession of the
+Corresponding Source of the work from the predecessor in interest, if
+the predecessor has it or can get it with reasonable efforts.
+
+  You may not impose any further restrictions on the exercise of the
+rights granted or affirmed under this License.  For example, you may
+not impose a license fee, royalty, or other charge for exercise of
+rights granted under this License, and you may not initiate litigation
+(including a cross-claim or counterclaim in a lawsuit) alleging that
+any patent claim is infringed by making, using, selling, offering for
+sale, or importing the Program or any portion of it.
+
+  11. Patents.
+
+  A "contributor" is a copyright holder who authorizes use under this
+License of the Program or a work on which the Program is based.  The
+work thus licensed is called the contributor's "contributor version".
+
+  A contributor's "essential patent claims" are all patent claims
+owned or controlled by the contributor, whether already acquired or
+hereafter acquired, that would be infringed by some manner, permitted
+by this License, of making, using, or selling its contributor version,
+but do not include claims that would be infringed only as a
+consequence of further modification of the contributor version.  For
+purposes of this definition, "control" includes the right to grant
+patent sublicenses in a manner consistent with the requirements of
 this License.
 
-  7. If, as a consequence of a court judgment or allegation of patent
-infringement or for any other reason (not limited to patent issues),
-conditions are imposed on you (whether by court order, agreement or
+  Each contributor grants you a non-exclusive, worldwide, royalty-free
+patent license under the contributor's essential patent claims, to
+make, use, sell, offer for sale, import and otherwise run, modify and
+propagate the contents of its contributor version.
+
+  In the following three paragraphs, a "patent license" is any express
+agreement or commitment, however denominated, not to enforce a patent
+(such as an express permission to practice a patent or covenant not to
+sue for patent infringement).  To "grant" such a patent license to a
+party means to make such an agreement or commitment not to enforce a
+patent against the party.
+
+  If you convey a covered work, knowingly relying on a patent license,
+and the Corresponding Source of the work is not available for anyone
+to copy, free of charge and under the terms of this License, through a
+publicly available network server or other readily accessible means,
+then you must either (1) cause the Corresponding Source to be so
+available, or (2) arrange to deprive yourself of the benefit of the
+patent license for this particular work, or (3) arrange, in a manner
+consistent with the requirements of this License, to extend the patent
+license to downstream recipients.  "Knowingly relying" means you have
+actual knowledge that, but for the patent license, your conveying the
+covered work in a country, or your recipient's use of the covered work
+in a country, would infringe one or more identifiable patents in that
+country that you have reason to believe are valid.
+
+  If, pursuant to or in connection with a single transaction or
+arrangement, you convey, or propagate by procuring conveyance of, a
+covered work, and grant a patent license to some of the parties
+receiving the covered work authorizing them to use, propagate, modify
+or convey a specific copy of the covered work, then the patent license
+you grant is automatically extended to all recipients of the covered
+work and works based on it.
+
+  A patent license is "discriminatory" if it does not include within
+the scope of its coverage, prohibits the exercise of, or is
+conditioned on the non-exercise of one or more of the rights that are
+specifically granted under this License.  You may not convey a covered
+work if you are a party to an arrangement with a third party that is
+in the business of distributing software, under which you make payment
+to the third party based on the extent of your activity of conveying
+the work, and under which the third party grants, to any of the
+parties who would receive the covered work from you, a discriminatory
+patent license (a) in connection with copies of the covered work
+conveyed by you (or copies made from those copies), or (b) primarily
+for and in connection with specific products or compilations that
+contain the covered work, unless you entered into that arrangement,
+or that patent license was granted, prior to 28 March 2007.
+
+  Nothing in this License shall be construed as excluding or limiting
+any implied license or other defenses to infringement that may
+otherwise be available to you under applicable patent law.
+
+  12. No Surrender of Others' Freedom.
+
+  If conditions are imposed on you (whether by court order, agreement or
 otherwise) that contradict the conditions of this License, they do not
-excuse you from the conditions of this License.  If you cannot
-distribute so as to satisfy simultaneously your obligations under this
-License and any other pertinent obligations, then as a consequence you
-may not distribute the Program at all.  For example, if a patent
-license would not permit royalty-free redistribution of the Program by
-all those who receive copies directly or indirectly through you, then
-the only way you could satisfy both it and this License would be to
-refrain entirely from distribution of the Program.
+excuse you from the conditions of this License.  If you cannot convey a
+covered work so as to satisfy simultaneously your obligations under this
+License and any other pertinent obligations, then as a consequence you may
+not convey it at all.  For example, if you agree to terms that obligate you
+to collect a royalty for further conveying from those to whom you convey
+the Program, the only way you could satisfy both those terms and this
+License would be to refrain entirely from conveying the Program.
 
-If any portion of this section is held invalid or unenforceable under
-any particular circumstance, the balance of the section is intended to
-apply and the section as a whole is intended to apply in other
-circumstances.
+  13. Use with the GNU Affero General Public License.
 
-It is not the purpose of this section to induce you to infringe any
-patents or other property right claims or to contest validity of any
-such claims; this section has the sole purpose of protecting the
-integrity of the free software distribution system, which is
-implemented by public license practices.  Many people have made
-generous contributions to the wide range of software distributed
-through that system in reliance on consistent application of that
-system; it is up to the author/donor to decide if he or she is willing
-to distribute software through any other system and a licensee cannot
-impose that choice.
+  Notwithstanding any other provision of this License, you have
+permission to link or combine any covered work with a work licensed
+under version 3 of the GNU Affero General Public License into a single
+combined work, and to convey the resulting work.  The terms of this
+License will continue to apply to the part which is the covered work,
+but the special requirements of the GNU Affero General Public License,
+section 13, concerning interaction through a network will apply to the
+combination as such.
 
-This section is intended to make thoroughly clear what is believed to
-be a consequence of the rest of this License.
+  14. Revised Versions of this License.
 
-  8. If the distribution and/or use of the Program is restricted in
-certain countries either by patents or by copyrighted interfaces, the
-original copyright holder who places the Program under this License
-may add an explicit geographical distribution limitation excluding
-those countries, so that distribution is permitted only in or among
-countries not thus excluded.  In such case, this License incorporates
-the limitation as if written in the body of this License.
-
-  9. The Free Software Foundation may publish revised and/or new versions
-of the General Public License from time to time.  Such new versions will
+  The Free Software Foundation may publish revised and/or new versions of
+the GNU General Public License from time to time.  Such new versions will
 be similar in spirit to the present version, but may differ in detail to
 address new problems or concerns.
 
-Each version is given a distinguishing version number.  If the Program
-specifies a version number of this License which applies to it and "any
-later version", you have the option of following the terms and conditions
-either of that version or of any later version published by the Free
-Software Foundation.  If the Program does not specify a version number of
-this License, you may choose any version ever published by the Free Software
-Foundation.
+  Each version is given a distinguishing version number.  If the
+Program specifies that a certain numbered version of the GNU General
+Public License "or any later version" applies to it, you have the
+option of following the terms and conditions either of that numbered
+version or of any later version published by the Free Software
+Foundation.  If the Program does not specify a version number of the
+GNU General Public License, you may choose any version ever published
+by the Free Software Foundation.
 
-  10. If you wish to incorporate parts of the Program into other free
-programs whose distribution conditions are different, write to the author
-to ask for permission.  For software which is copyrighted by the Free
-Software Foundation, write to the Free Software Foundation; we sometimes
-make exceptions for this.  Our decision will be guided by the two goals
-of preserving the free status of all derivatives of our free software and
-of promoting the sharing and reuse of software generally.
+  If the Program specifies that a proxy can decide which future
+versions of the GNU General Public License can be used, that proxy's
+public statement of acceptance of a version permanently authorizes you
+to choose that version for the Program.
 
-			    NO WARRANTY
+  Later license versions may give you additional or different
+permissions.  However, no additional obligations are imposed on any
+author or copyright holder as a result of your choosing to follow a
+later version.
 
-  11. BECAUSE THE PROGRAM IS LICENSED FREE OF CHARGE, THERE IS NO WARRANTY
-FOR THE PROGRAM, TO THE EXTENT PERMITTED BY APPLICABLE LAW.  EXCEPT WHEN
-OTHERWISE STATED IN WRITING THE COPYRIGHT HOLDERS AND/OR OTHER PARTIES
-PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED
-OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
-MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.  THE ENTIRE RISK AS
-TO THE QUALITY AND PERFORMANCE OF THE PROGRAM IS WITH YOU.  SHOULD THE
-PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF ALL NECESSARY SERVICING,
-REPAIR OR CORRECTION.
+  15. Disclaimer of Warranty.
 
-  12. IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
-WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MAY MODIFY AND/OR
-REDISTRIBUTE THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES,
-INCLUDING ANY GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING
-OUT OF THE USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED
-TO LOSS OF DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY
-YOU OR THIRD PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER
-PROGRAMS), EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE
-POSSIBILITY OF SUCH DAMAGES.
+  THERE IS NO WARRANTY FOR THE PROGRAM, TO THE EXTENT PERMITTED BY
+APPLICABLE LAW.  EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT
+HOLDERS AND/OR OTHER PARTIES PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY
+OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO,
+THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+PURPOSE.  THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE PROGRAM
+IS WITH YOU.  SHOULD THE PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF
+ALL NECESSARY SERVICING, REPAIR OR CORRECTION.
 
-		     END OF TERMS AND CONDITIONS
+  16. Limitation of Liability.
 
-	    How to Apply These Terms to Your New Programs
+  IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
+WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MODIFIES AND/OR CONVEYS
+THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING ANY
+GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE
+USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED TO LOSS OF
+DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD
+PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER PROGRAMS),
+EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF
+SUCH DAMAGES.
+
+  17. Interpretation of Sections 15 and 16.
+
+  If the disclaimer of warranty and limitation of liability provided
+above cannot be given local legal effect according to their terms,
+reviewing courts shall apply local law that most closely approximates
+an absolute waiver of all civil liability in connection with the
+Program, unless a warranty or assumption of liability accompanies a
+copy of the Program in return for a fee.
+
+                     END OF TERMS AND CONDITIONS
+
+            How to Apply These Terms to Your New Programs
 
   If you develop a new program, and you want it to be of the greatest
 possible use to the public, the best way to achieve this is to make it
@@ -287,15 +628,15 @@ free software which everyone can redistribute and change under these terms.
 
   To do so, attach the following notices to the program.  It is safest
 to attach them to the start of each source file to most effectively
-convey the exclusion of warranty; and each file should have at least
+state the exclusion of warranty; and each file should have at least
 the "copyright" line and a pointer to where the full notice is found.
 
     <one line to give the program's name and a brief idea of what it does.>
     Copyright (C) <year>  <name of author>
 
-    This program is free software; you can redistribute it and/or modify
+    This program is free software: you can redistribute it and/or modify
     it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
+    the Free Software Foundation, either version 3 of the License, or
     (at your option) any later version.
 
     This program is distributed in the hope that it will be useful,
@@ -303,63 +644,31 @@ the "copyright" line and a pointer to where the full notice is found.
     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
     GNU General Public License for more details.
 
-    You should have received a copy of the GNU General Public License along
-    with this program; if not, write to the Free Software Foundation, Inc.,
-    51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+    You should have received a copy of the GNU General Public License
+    along with this program.  If not, see <https://www.gnu.org/licenses/>.
 
 Also add information on how to contact you by electronic and paper mail.
 
-If the program is interactive, make it output a short notice like this
-when it starts in an interactive mode:
+  If the program does terminal interaction, make it output a short
+notice like this when it starts in an interactive mode:
 
-    Gnomovision version 69, Copyright (C) year name of author
-    Gnomovision comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
+    <program>  Copyright (C) <year>  <name of author>
+    This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
     This is free software, and you are welcome to redistribute it
     under certain conditions; type `show c' for details.
 
 The hypothetical commands `show w' and `show c' should show the appropriate
-parts of the General Public License.  Of course, the commands you use may
-be called something other than `show w' and `show c'; they could even be
-mouse-clicks or menu items--whatever suits your program.
+parts of the General Public License.  Of course, your program's commands
+might be different; for a GUI interface, you would use an "about box".
 
-You should also get your employer (if you work as a programmer) or your
-school, if any, to sign a "copyright disclaimer" for the program, if
-necessary.  Here is a sample; alter the names:
+  You should also get your employer (if you work as a programmer) or school,
+if any, to sign a "copyright disclaimer" for the program, if necessary.
+For more information on this, and how to apply and follow the GNU GPL, see
+<https://www.gnu.org/licenses/>.
 
-  Yoyodyne, Inc., hereby disclaims all copyright interest in the program
-  `Gnomovision' (which makes passes at compilers) written by James Hacker.
-
-  <signature of Ty Coon>, 1 April 1989
-  Ty Coon, President of Vice
-
-This General Public License does not permit incorporating your program into
-proprietary programs.  If your program is a subroutine library, you may
-consider it more useful to permit linking proprietary applications with the
-library.  If this is what you want to do, use the GNU Lesser General
-Public License instead of this License.
-
-
-The icons used in this project have the following licenses:
-
-Icon Name                                   | License       | Origin/Author
----                                         | ---           | ---
-checked.png                                 | CC BY-ND 3.0  | https://icons8.com
-failed.png                                  | CC BY-ND 3.0  | https://icons8.com
-lock.png                                    | CC BY-ND 3.0  | https://icons8.com
-plus_folder.png (Default, Dark)             | CC BY-ND 3.0  | https://icons8.com
-bad_folder.png (Default, Dark)              | CC BY-ND 3.0  | https://icons8.com
-chip.png (Default, Dark)                    | CC BY-ND 3.0  | https://icons8.com
-folder.png (Default, Dark)                  | CC BY-ND 3.0  | https://icons8.com
-plus.png (Default, Dark)                    | CC0 1.0       | Designed by BreadFish64 from the Citra team
-sd_card.png (Default, Dark)                 | CC BY-ND 3.0  | https://icons8.com
-plus_folder.png (Colorful, Colorful Dark)   | CC BY-ND 3.0  | https://icons8.com
-bad_folder.png (Colorful, Colorful Dark)    | CC BY-ND 3.0  | https://icons8.com
-chip.png (Colorful, Colorful Dark)          | CC BY-ND 3.0  | https://icons8.com
-folder.png (Colorful, Colorful Dark)        | CC BY-ND 3.0  | https://icons8.com
-plus.png (Colorful, Colorful Dark)          | CC BY-ND 3.0  | https://icons8.com
-sd_card.png (Colorful, Colorful Dark)       | CC BY-ND 3.0  | https://icons8.com
-star.png                                    | CC BY-ND 3.0  | https://icons8.com
-
-Note:
-Some icons are different in different themes, and they are separately listed
-only when they have different licenses/origins.
+  The GNU General Public License does not permit incorporating your program
+into proprietary programs.  If your program is a subroutine library, you
+may consider it more useful to permit linking proprietary applications with
+the library.  If this is what you want to do, use the GNU Lesser General
+Public License instead of this License.  But first, please read
+<https://www.gnu.org/licenses/why-not-lgpl.html>.

src/common/logging/filter.cpp

@@ -119,6 +119,7 @@ bool ParseFilterRule(Filter& instance, Iterator begin, Iterator end) {
     SUB(Service, NPNS)                                                                             \
     SUB(Service, NS)                                                                               \
     SUB(Service, NVDRV)                                                                            \
+    SUB(Service, NVFlinger)                                                                        \
     SUB(Service, OLSC)                                                                             \
     SUB(Service, PCIE)                                                                             \
     SUB(Service, PCTL)                                                                             \

src/common/logging/types.h

@@ -87,6 +87,7 @@ enum class Class : u8 {
     Service_NPNS,      ///< The NPNS service
     Service_NS,        ///< The NS services
     Service_NVDRV,     ///< The NVDRV (Nvidia driver) service
+    Service_NVFlinger, ///< The NVFlinger service
     Service_OLSC,      ///< The OLSC service
     Service_PCIE,      ///< The PCIe service
     Service_PCTL,      ///< The PCTL (Parental control) service

src/common/math_util.h

@@ -4,6 +4,7 @@
 
 #pragma once
 
+#include <algorithm>
 #include <cstdlib>
 #include <type_traits>
 
@@ -20,10 +21,32 @@ struct Rectangle {
 
     constexpr Rectangle() = default;
 
+    constexpr Rectangle(T width, T height) : right(width), bottom(height) {}
+
     constexpr Rectangle(T left_, T top_, T right_, T bottom_)
         : left(left_), top(top_), right(right_), bottom(bottom_) {}
 
-    [[nodiscard]] T GetWidth() const {
+    [[nodiscard]] constexpr T Left() const {
+        return left;
+    }
+
+    [[nodiscard]] constexpr T Top() const {
+        return top;
+    }
+
+    [[nodiscard]] constexpr T Right() const {
+        return right;
+    }
+
+    [[nodiscard]] constexpr T Bottom() const {
+        return bottom;
+    }
+
+    [[nodiscard]] constexpr bool IsEmpty() const {
+        return (GetWidth() <= 0) || (GetHeight() <= 0);
+    }
+
+    [[nodiscard]] constexpr T GetWidth() const {
         if constexpr (std::is_floating_point_v<T>) {
             return std::abs(right - left);
         } else {
@@ -31,7 +54,7 @@ struct Rectangle {
         }
     }
 
-    [[nodiscard]] T GetHeight() const {
+    [[nodiscard]] constexpr T GetHeight() const {
         if constexpr (std::is_floating_point_v<T>) {
             return std::abs(bottom - top);
         } else {
@@ -39,18 +62,35 @@ struct Rectangle {
         }
     }
 
-    [[nodiscard]] Rectangle<T> TranslateX(const T x) const {
+    [[nodiscard]] constexpr Rectangle<T> TranslateX(const T x) const {
         return Rectangle{left + x, top, right + x, bottom};
     }
 
-    [[nodiscard]] Rectangle<T> TranslateY(const T y) const {
+    [[nodiscard]] constexpr Rectangle<T> TranslateY(const T y) const {
         return Rectangle{left, top + y, right, bottom + y};
     }
 
-    [[nodiscard]] Rectangle<T> Scale(const float s) const {
+    [[nodiscard]] constexpr Rectangle<T> Scale(const float s) const {
         return Rectangle{left, top, static_cast<T>(static_cast<float>(left + GetWidth()) * s),
                          static_cast<T>(static_cast<float>(top + GetHeight()) * s)};
     }
+
+    [[nodiscard]] constexpr bool operator==(const Rectangle<T>& rhs) const {
+        return (left == rhs.left) && (top == rhs.top) && (right == rhs.right) &&
+               (bottom == rhs.bottom);
+    }
+
+    [[nodiscard]] constexpr bool operator!=(const Rectangle<T>& rhs) const {
+        return !operator==(rhs);
+    }
+
+    [[nodiscard]] constexpr bool Intersect(const Rectangle<T>& with, Rectangle<T>* result) const {
+        result->left = std::max(left, with.left);
+        result->top = std::max(top, with.top);
+        result->right = std::min(right, with.right);
+        result->bottom = std::min(bottom, with.bottom);
+        return !result->IsEmpty();
+    }
 };
 
 template <typename T>

src/core/CMakeLists.txt

@@ -122,8 +122,8 @@ add_library(core STATIC
     frontend/applets/error.h
     frontend/applets/general_frontend.cpp
     frontend/applets/general_frontend.h
-    frontend/applets/mii.cpp
-    frontend/applets/mii.h
+    frontend/applets/mii_edit.cpp
+    frontend/applets/mii_edit.h
     frontend/applets/profile_select.cpp
     frontend/applets/profile_select.h
     frontend/applets/software_keyboard.cpp
@@ -306,8 +306,9 @@ add_library(core STATIC
     hle/service/am/applets/applet_error.h
     hle/service/am/applets/applet_general_backend.cpp
     hle/service/am/applets/applet_general_backend.h
-    hle/service/am/applets/applet_mii.cpp
-    hle/service/am/applets/applet_mii.h
+    hle/service/am/applets/applet_mii_edit.cpp
+    hle/service/am/applets/applet_mii_edit.h
+    hle/service/am/applets/applet_mii_edit_types.h
     hle/service/am/applets/applet_profile_select.cpp
     hle/service/am/applets/applet_profile_select.h
     hle/service/am/applets/applet_software_keyboard.cpp
@@ -534,10 +535,35 @@ add_library(core STATIC
     hle/service/nvdrv/nvmemp.h
     hle/service/nvdrv/syncpoint_manager.cpp
     hle/service/nvdrv/syncpoint_manager.h
-    hle/service/nvflinger/buffer_queue.cpp
-    hle/service/nvflinger/buffer_queue.h
+    hle/service/nvflinger/binder.h
+    hle/service/nvflinger/buffer_item.h
+    hle/service/nvflinger/buffer_item_consumer.cpp
+    hle/service/nvflinger/buffer_item_consumer.h
+    hle/service/nvflinger/buffer_queue_consumer.cpp
+    hle/service/nvflinger/buffer_queue_consumer.h
+    hle/service/nvflinger/buffer_queue_core.cpp
+    hle/service/nvflinger/buffer_queue_core.h
+    hle/service/nvflinger/buffer_queue_defs.h
+    hle/service/nvflinger/buffer_queue_producer.cpp
+    hle/service/nvflinger/buffer_queue_producer.h
+    hle/service/nvflinger/buffer_slot.h
+    hle/service/nvflinger/buffer_transform_flags.h
+    hle/service/nvflinger/consumer_base.cpp
+    hle/service/nvflinger/consumer_base.h
+    hle/service/nvflinger/consumer_listener.h
+    hle/service/nvflinger/graphic_buffer_producer.cpp
+    hle/service/nvflinger/graphic_buffer_producer.h
+    hle/service/nvflinger/hos_binder_driver_server.cpp
+    hle/service/nvflinger/hos_binder_driver_server.h
     hle/service/nvflinger/nvflinger.cpp
     hle/service/nvflinger/nvflinger.h
+    hle/service/nvflinger/parcel.h
+    hle/service/nvflinger/pixel_format.h
+    hle/service/nvflinger/producer_listener.h
+    hle/service/nvflinger/status.h
+    hle/service/nvflinger/ui/fence.h
+    hle/service/nvflinger/ui/graphic_buffer.h
+    hle/service/nvflinger/window.h
     hle/service/olsc/olsc.cpp
     hle/service/olsc/olsc.h
     hle/service/pcie/pcie.cpp

src/core/arm/dynarmic/arm_dynarmic_32.cpp

@@ -148,8 +148,8 @@ std::shared_ptr<Dynarmic::A32::Jit> ARM_Dynarmic_32::MakeJit(Common::PageTable*
     config.wall_clock_cntpct = uses_wall_clock;
 
     // Code cache size
-    config.code_cache_size = 128_MiB;
-    config.far_code_offset = 100_MiB;
+    config.code_cache_size = 512_MiB;
+    config.far_code_offset = 400_MiB;
 
     // Safe optimizations
     if (Settings::values.cpu_debug_mode) {

src/core/arm/dynarmic/arm_dynarmic_64.cpp

@@ -93,17 +93,19 @@ public:
             static constexpr u64 ICACHE_LINE_SIZE = 64;
 
             const u64 cache_line_start = value & ~(ICACHE_LINE_SIZE - 1);
-            parent.InvalidateCacheRange(cache_line_start, ICACHE_LINE_SIZE);
+            parent.system.InvalidateCpuInstructionCacheRange(cache_line_start, ICACHE_LINE_SIZE);
             break;
         }
         case Dynarmic::A64::InstructionCacheOperation::InvalidateAllToPoU:
-            parent.ClearInstructionCache();
+            parent.system.InvalidateCpuInstructionCaches();
             break;
         case Dynarmic::A64::InstructionCacheOperation::InvalidateAllToPoUInnerSharable:
         default:
             LOG_DEBUG(Core_ARM, "Unprocesseed instruction cache operation: {}", op);
             break;
         }
+
+        parent.jit->HaltExecution();
     }
 
     void ExceptionRaised(u64 pc, Dynarmic::A64::Exception exception) override {
@@ -208,8 +210,8 @@ std::shared_ptr<Dynarmic::A64::Jit> ARM_Dynarmic_64::MakeJit(Common::PageTable*
     config.wall_clock_cntpct = uses_wall_clock;
 
     // Code cache size
-    config.code_cache_size = 128_MiB;
-    config.far_code_offset = 100_MiB;
+    config.code_cache_size = 512_MiB;
+    config.far_code_offset = 400_MiB;
 
     // Safe optimizations
     if (Settings::values.cpu_debug_mode) {

src/core/frontend/applets/mii.cpp

@@ -1,19 +0,0 @@
-// Copyright 2022 yuzu Emulator Project
-// Licensed under GPLv2 or any later version
-// Refer to the license.txt file included.
-
-#include "common/logging/log.h"
-#include "core/frontend/applets/mii.h"
-
-namespace Core::Frontend {
-
-MiiApplet::~MiiApplet() = default;
-
-void DefaultMiiApplet::ShowMii(
-    const MiiParameters& parameters,
-    const std::function<void(const Core::Frontend::MiiParameters& parameters)> callback) const {
-    LOG_INFO(Service_HID, "(STUBBED) called");
-    callback(parameters);
-}
-
-} // namespace Core::Frontend

src/core/frontend/applets/mii.h

@@ -1,34 +0,0 @@
-// Copyright 2022 yuzu Emulator Project
-// Licensed under GPLv2 or any later version
-// Refer to the license.txt file included.
-
-#pragma once
-
-#include <functional>
-
-#include "core/hle/service/mii/mii_manager.h"
-
-namespace Core::Frontend {
-
-struct MiiParameters {
-    bool is_editable;
-    Service::Mii::MiiInfo mii_data{};
-};
-
-class MiiApplet {
-public:
-    virtual ~MiiApplet();
-
-    virtual void ShowMii(const MiiParameters& parameters,
-                         const std::function<void(const Core::Frontend::MiiParameters& parameters)>
-                             callback) const = 0;
-};
-
-class DefaultMiiApplet final : public MiiApplet {
-public:
-    void ShowMii(const MiiParameters& parameters,
-                 const std::function<void(const Core::Frontend::MiiParameters& parameters)>
-                     callback) const override;
-};
-
-} // namespace Core::Frontend

src/core/frontend/applets/mii_edit.cpp

@@ -0,0 +1,18 @@
+// Copyright 2022 yuzu Emulator Project
+// Licensed under GPLv2 or any later version
+// Refer to the license.txt file included.
+
+#include "common/logging/log.h"
+#include "core/frontend/applets/mii_edit.h"
+
+namespace Core::Frontend {
+
+MiiEditApplet::~MiiEditApplet() = default;
+
+void DefaultMiiEditApplet::ShowMiiEdit(const std::function<void()>& callback) const {
+    LOG_WARNING(Service_AM, "(STUBBED) called");
+
+    callback();
+}
+
+} // namespace Core::Frontend

src/core/frontend/applets/mii_edit.h

@@ -0,0 +1,23 @@
+// Copyright 2022 yuzu Emulator Project
+// Licensed under GPLv2 or any later version
+// Refer to the license.txt file included.
+
+#pragma once
+
+#include <functional>
+
+namespace Core::Frontend {
+
+class MiiEditApplet {
+public:
+    virtual ~MiiEditApplet();
+
+    virtual void ShowMiiEdit(const std::function<void()>& callback) const = 0;
+};
+
+class DefaultMiiEditApplet final : public MiiEditApplet {
+public:
+    void ShowMiiEdit(const std::function<void()>& callback) const override;
+};
+
+} // namespace Core::Frontend

src/core/hle/kernel/k_code_memory.cpp

@@ -28,7 +28,8 @@ ResultCode KCodeMemory::Initialize(Core::DeviceMemory& device_memory, VAddr addr
     auto& page_table = m_owner->PageTable();
 
     // Construct the page group.
-    m_page_group = KPageLinkedList(addr, Common::DivideUp(size, PageSize));
+    m_page_group =
+        KPageLinkedList(page_table.GetPhysicalAddr(addr), Common::DivideUp(size, PageSize));
 
     // Lock the memory.
     R_TRY(page_table.LockForCodeMemory(addr, size))

src/core/hle/kernel/k_page_linked_list.h

@@ -89,6 +89,10 @@ public:
         return ResultSuccess;
     }
 
+    bool Empty() const {
+        return nodes.empty();
+    }
+
 private:
     std::list<Node> nodes;
 };

src/core/hle/kernel/k_page_table.cpp

@@ -486,6 +486,58 @@ VAddr KPageTable::FindFreeArea(VAddr region_start, std::size_t region_num_pages,
     return address;
 }
 
+ResultCode KPageTable::MakePageGroup(KPageLinkedList& pg, VAddr addr, size_t num_pages) {
+    ASSERT(this->IsLockedByCurrentThread());
+
+    const size_t size = num_pages * PageSize;
+
+    // We're making a new group, not adding to an existing one.
+    R_UNLESS(pg.Empty(), ResultInvalidCurrentMemory);
+
+    // Begin traversal.
+    Common::PageTable::TraversalContext context;
+    Common::PageTable::TraversalEntry next_entry;
+    R_UNLESS(page_table_impl.BeginTraversal(next_entry, context, addr), ResultInvalidCurrentMemory);
+
+    // Prepare tracking variables.
+    PAddr cur_addr = next_entry.phys_addr;
+    size_t cur_size = next_entry.block_size - (cur_addr & (next_entry.block_size - 1));
+    size_t tot_size = cur_size;
+
+    // Iterate, adding to group as we go.
+    const auto& memory_layout = system.Kernel().MemoryLayout();
+    while (tot_size < size) {
+        R_UNLESS(page_table_impl.ContinueTraversal(next_entry, context),
+                 ResultInvalidCurrentMemory);
+
+        if (next_entry.phys_addr != (cur_addr + cur_size)) {
+            const size_t cur_pages = cur_size / PageSize;
+
+            R_UNLESS(IsHeapPhysicalAddress(memory_layout, cur_addr), ResultInvalidCurrentMemory);
+            R_TRY(pg.AddBlock(cur_addr, cur_pages));
+
+            cur_addr = next_entry.phys_addr;
+            cur_size = next_entry.block_size;
+        } else {
+            cur_size += next_entry.block_size;
+        }
+
+        tot_size += next_entry.block_size;
+    }
+
+    // Ensure we add the right amount for the last block.
+    if (tot_size > size) {
+        cur_size -= (tot_size - size);
+    }
+
+    // Add the last block.
+    const size_t cur_pages = cur_size / PageSize;
+    R_UNLESS(IsHeapPhysicalAddress(memory_layout, cur_addr), ResultInvalidCurrentMemory);
+    R_TRY(pg.AddBlock(cur_addr, cur_pages));
+
+    return ResultSuccess;
+}
+
 ResultCode KPageTable::UnmapProcessMemory(VAddr dst_addr, std::size_t size,
                                           KPageTable& src_page_table, VAddr src_addr) {
     KScopedLightLock lk(general_lock);
@@ -1223,6 +1275,31 @@ ResultCode KPageTable::UnmapPages(VAddr address, std::size_t num_pages, KMemoryS
     return ResultSuccess;
 }
 
+ResultCode KPageTable::MakeAndOpenPageGroup(KPageLinkedList* out, VAddr address, size_t num_pages,
+                                            KMemoryState state_mask, KMemoryState state,
+                                            KMemoryPermission perm_mask, KMemoryPermission perm,
+                                            KMemoryAttribute attr_mask, KMemoryAttribute attr) {
+    // Ensure that the page group isn't null.
+    ASSERT(out != nullptr);
+
+    // Make sure that the region we're mapping is valid for the table.
+    const size_t size = num_pages * PageSize;
+    R_UNLESS(this->Contains(address, size), ResultInvalidCurrentMemory);
+
+    // Lock the table.
+    KScopedLightLock lk(general_lock);
+
+    // Check if state allows us to create the group.
+    R_TRY(this->CheckMemoryState(address, size, state_mask | KMemoryState::FlagReferenceCounted,
+                                 state | KMemoryState::FlagReferenceCounted, perm_mask, perm,
+                                 attr_mask, attr));
+
+    // Create a new page group for the region.
+    R_TRY(this->MakePageGroup(*out, address, num_pages));
+
+    return ResultSuccess;
+}
+
 ResultCode KPageTable::SetProcessMemoryPermission(VAddr addr, std::size_t size,
                                                   Svc::MemoryPermission svc_perm) {
     const size_t num_pages = size / PageSize;
@@ -1605,57 +1682,21 @@ ResultCode KPageTable::UnlockForDeviceAddressSpace(VAddr addr, std::size_t size)
 }
 
 ResultCode KPageTable::LockForCodeMemory(VAddr addr, std::size_t size) {
-    KScopedLightLock lk(general_lock);
-
-    KMemoryPermission new_perm = KMemoryPermission::NotMapped | KMemoryPermission::KernelReadWrite;
-
-    KMemoryPermission old_perm{};
-
-    if (const ResultCode result{CheckMemoryState(
-            nullptr, &old_perm, nullptr, nullptr, addr, size, KMemoryState::FlagCanCodeMemory,
-            KMemoryState::FlagCanCodeMemory, KMemoryPermission::All,
-            KMemoryPermission::UserReadWrite, KMemoryAttribute::All, KMemoryAttribute::None)};
-        result.IsError()) {
-        return result;
-    }
-
-    new_perm = (new_perm != KMemoryPermission::None) ? new_perm : old_perm;
-
-    block_manager->UpdateLock(
-        addr, size / PageSize,
-        [](KMemoryBlockManager::iterator block, KMemoryPermission permission) {
-            block->ShareToDevice(permission);
-        },
-        new_perm);
-
-    return ResultSuccess;
+    return this->LockMemoryAndOpen(
+        nullptr, nullptr, addr, size, KMemoryState::FlagCanCodeMemory,
+        KMemoryState::FlagCanCodeMemory, KMemoryPermission::All, KMemoryPermission::UserReadWrite,
+        KMemoryAttribute::All, KMemoryAttribute::None,
+        static_cast<KMemoryPermission>(KMemoryPermission::NotMapped |
+                                       KMemoryPermission::KernelReadWrite),
+        KMemoryAttribute::Locked);
 }
 
 ResultCode KPageTable::UnlockForCodeMemory(VAddr addr, std::size_t size) {
-    KScopedLightLock lk(general_lock);
-
-    KMemoryPermission new_perm = KMemoryPermission::UserReadWrite;
-
-    KMemoryPermission old_perm{};
-
-    if (const ResultCode result{CheckMemoryState(
-            nullptr, &old_perm, nullptr, nullptr, addr, size, KMemoryState::FlagCanCodeMemory,
-            KMemoryState::FlagCanCodeMemory, KMemoryPermission::None, KMemoryPermission::None,
-            KMemoryAttribute::All, KMemoryAttribute::Locked)};
-        result.IsError()) {
-        return result;
-    }
-
-    new_perm = (new_perm != KMemoryPermission::None) ? new_perm : old_perm;
-
-    block_manager->UpdateLock(
-        addr, size / PageSize,
-        [](KMemoryBlockManager::iterator block, KMemoryPermission permission) {
-            block->UnshareToDevice(permission);
-        },
-        new_perm);
-
-    return ResultSuccess;
+    return this->UnlockMemory(addr, size, KMemoryState::FlagCanCodeMemory,
+                              KMemoryState::FlagCanCodeMemory, KMemoryPermission::None,
+                              KMemoryPermission::None, KMemoryAttribute::All,
+                              KMemoryAttribute::Locked, KMemoryPermission::UserReadWrite,
+                              KMemoryAttribute::Locked, nullptr);
 }
 
 ResultCode KPageTable::InitializeMemoryLayout(VAddr start, VAddr end) {
@@ -1991,4 +2032,109 @@ ResultCode KPageTable::CheckMemoryState(KMemoryState* out_state, KMemoryPermissi
     return ResultSuccess;
 }
 
+ResultCode KPageTable::LockMemoryAndOpen(KPageLinkedList* out_pg, PAddr* out_paddr, VAddr addr,
+                                         size_t size, KMemoryState state_mask, KMemoryState state,
+                                         KMemoryPermission perm_mask, KMemoryPermission perm,
+                                         KMemoryAttribute attr_mask, KMemoryAttribute attr,
+                                         KMemoryPermission new_perm, KMemoryAttribute lock_attr) {
+    // Validate basic preconditions.
+    ASSERT((lock_attr & attr) == KMemoryAttribute::None);
+    ASSERT((lock_attr & (KMemoryAttribute::IpcLocked | KMemoryAttribute::DeviceShared)) ==
+           KMemoryAttribute::None);
+
+    // Validate the lock request.
+    const size_t num_pages = size / PageSize;
+    R_UNLESS(this->Contains(addr, size), ResultInvalidCurrentMemory);
+
+    // Lock the table.
+    KScopedLightLock lk(general_lock);
+
+    // Check that the output page group is empty, if it exists.
+    if (out_pg) {
+        ASSERT(out_pg->GetNumPages() == 0);
+    }
+
+    // Check the state.
+    KMemoryState old_state{};
+    KMemoryPermission old_perm{};
+    KMemoryAttribute old_attr{};
+    size_t num_allocator_blocks{};
+    R_TRY(this->CheckMemoryState(std::addressof(old_state), std::addressof(old_perm),
+                                 std::addressof(old_attr), std::addressof(num_allocator_blocks),
+                                 addr, size, state_mask | KMemoryState::FlagReferenceCounted,
+                                 state | KMemoryState::FlagReferenceCounted, perm_mask, perm,
+                                 attr_mask, attr));
+
+    // Get the physical address, if we're supposed to.
+    if (out_paddr != nullptr) {
+        ASSERT(this->GetPhysicalAddressLocked(out_paddr, addr));
+    }
+
+    // Make the page group, if we're supposed to.
+    if (out_pg != nullptr) {
+        R_TRY(this->MakePageGroup(*out_pg, addr, num_pages));
+    }
+
+    // Decide on new perm and attr.
+    new_perm = (new_perm != KMemoryPermission::None) ? new_perm : old_perm;
+    KMemoryAttribute new_attr = static_cast<KMemoryAttribute>(old_attr | lock_attr);
+
+    // Update permission, if we need to.
+    if (new_perm != old_perm) {
+        R_TRY(Operate(addr, num_pages, new_perm, OperationType::ChangePermissions));
+    }
+
+    // Apply the memory block updates.
+    block_manager->Update(addr, num_pages, old_state, new_perm, new_attr);
+
+    return ResultSuccess;
+}
+
+ResultCode KPageTable::UnlockMemory(VAddr addr, size_t size, KMemoryState state_mask,
+                                    KMemoryState state, KMemoryPermission perm_mask,
+                                    KMemoryPermission perm, KMemoryAttribute attr_mask,
+                                    KMemoryAttribute attr, KMemoryPermission new_perm,
+                                    KMemoryAttribute lock_attr, const KPageLinkedList* pg) {
+    // Validate basic preconditions.
+    ASSERT((attr_mask & lock_attr) == lock_attr);
+    ASSERT((attr & lock_attr) == lock_attr);
+
+    // Validate the unlock request.
+    const size_t num_pages = size / PageSize;
+    R_UNLESS(this->Contains(addr, size), ResultInvalidCurrentMemory);
+
+    // Lock the table.
+    KScopedLightLock lk(general_lock);
+
+    // Check the state.
+    KMemoryState old_state{};
+    KMemoryPermission old_perm{};
+    KMemoryAttribute old_attr{};
+    size_t num_allocator_blocks{};
+    R_TRY(this->CheckMemoryState(std::addressof(old_state), std::addressof(old_perm),
+                                 std::addressof(old_attr), std::addressof(num_allocator_blocks),
+                                 addr, size, state_mask | KMemoryState::FlagReferenceCounted,
+                                 state | KMemoryState::FlagReferenceCounted, perm_mask, perm,
+                                 attr_mask, attr));
+
+    // Check the page group.
+    if (pg != nullptr) {
+        UNIMPLEMENTED_MSG("PageGroup support is unimplemented!");
+    }
+
+    // Decide on new perm and attr.
+    new_perm = (new_perm != KMemoryPermission::None) ? new_perm : old_perm;
+    KMemoryAttribute new_attr = static_cast<KMemoryAttribute>(old_attr & ~lock_attr);
+
+    // Update permission, if we need to.
+    if (new_perm != old_perm) {
+        R_TRY(Operate(addr, num_pages, new_perm, OperationType::ChangePermissions));
+    }
+
+    // Apply the memory block updates.
+    block_manager->Update(addr, num_pages, old_state, new_perm, new_attr);
+
+    return ResultSuccess;
+}
+
 } // namespace Kernel

src/core/hle/kernel/k_page_table.h

@@ -12,6 +12,7 @@
 #include "core/file_sys/program_metadata.h"
 #include "core/hle/kernel/k_light_lock.h"
 #include "core/hle/kernel/k_memory_block.h"
+#include "core/hle/kernel/k_memory_layout.h"
 #include "core/hle/kernel/k_memory_manager.h"
 #include "core/hle/result.h"
 
@@ -71,6 +72,10 @@ public:
     ResultCode UnlockForDeviceAddressSpace(VAddr addr, std::size_t size);
     ResultCode LockForCodeMemory(VAddr addr, std::size_t size);
     ResultCode UnlockForCodeMemory(VAddr addr, std::size_t size);
+    ResultCode MakeAndOpenPageGroup(KPageLinkedList* out, VAddr address, size_t num_pages,
+                                    KMemoryState state_mask, KMemoryState state,
+                                    KMemoryPermission perm_mask, KMemoryPermission perm,
+                                    KMemoryAttribute attr_mask, KMemoryAttribute attr);
 
     Common::PageTable& PageTableImpl() {
         return page_table_impl;
@@ -159,10 +164,37 @@ private:
                                       attr_mask, attr, ignore_attr);
     }
 
+    ResultCode LockMemoryAndOpen(KPageLinkedList* out_pg, PAddr* out_paddr, VAddr addr, size_t size,
+                                 KMemoryState state_mask, KMemoryState state,
+                                 KMemoryPermission perm_mask, KMemoryPermission perm,
+                                 KMemoryAttribute attr_mask, KMemoryAttribute attr,
+                                 KMemoryPermission new_perm, KMemoryAttribute lock_attr);
+    ResultCode UnlockMemory(VAddr addr, size_t size, KMemoryState state_mask, KMemoryState state,
+                            KMemoryPermission perm_mask, KMemoryPermission perm,
+                            KMemoryAttribute attr_mask, KMemoryAttribute attr,
+                            KMemoryPermission new_perm, KMemoryAttribute lock_attr,
+                            const KPageLinkedList* pg);
+
+    ResultCode MakePageGroup(KPageLinkedList& pg, VAddr addr, size_t num_pages);
+
     bool IsLockedByCurrentThread() const {
         return general_lock.IsLockedByCurrentThread();
     }
 
+    bool IsHeapPhysicalAddress(const KMemoryLayout& layout, PAddr phys_addr) {
+        ASSERT(this->IsLockedByCurrentThread());
+
+        return layout.IsHeapPhysicalAddress(cached_physical_heap_region, phys_addr);
+    }
+
+    bool GetPhysicalAddressLocked(PAddr* out, VAddr virt_addr) const {
+        ASSERT(this->IsLockedByCurrentThread());
+
+        *out = GetPhysicalAddr(virt_addr);
+
+        return *out != 0;
+    }
+
     mutable KLightLock general_lock;
     mutable KLightLock map_physical_memory_lock;
 
@@ -322,6 +354,7 @@ private:
     bool is_aslr_enabled{};
 
     u32 heap_fill_value{};
+    const KMemoryRegion* cached_physical_heap_region{};
 
     KMemoryManager::Pool memory_pool{KMemoryManager::Pool::Application};
     KMemoryManager::Direction allocation_option{KMemoryManager::Direction::FromFront};

src/core/hle/kernel/svc.cpp

@@ -1362,8 +1362,11 @@ static ResultCode MapProcessMemory(Core::System& system, VAddr dst_address, Hand
              ResultInvalidMemoryRegion);
 
     // Create a new page group.
-    KMemoryInfo kBlockInfo = dst_pt.QueryInfo(dst_address);
-    KPageLinkedList pg(kBlockInfo.GetAddress(), kBlockInfo.GetNumPages());
+    KPageLinkedList pg;
+    R_TRY(src_pt.MakeAndOpenPageGroup(
+        std::addressof(pg), src_address, size / PageSize, KMemoryState::FlagCanMapProcess,
+        KMemoryState::FlagCanMapProcess, KMemoryPermission::None, KMemoryPermission::None,
+        KMemoryAttribute::All, KMemoryAttribute::None));
 
     // Map the group.
     R_TRY(dst_pt.MapPages(dst_address, pg, KMemoryState::SharedCode,
@@ -1408,8 +1411,8 @@ static ResultCode UnmapProcessMemory(Core::System& system, VAddr dst_address, Ha
 }
 
 static ResultCode CreateCodeMemory(Core::System& system, Handle* out, VAddr address, size_t size) {
-    LOG_TRACE(Kernel_SVC, "called, handle_out={}, address=0x{:X}, size=0x{:X}",
-              static_cast<void*>(out), address, size);
+    LOG_TRACE(Kernel_SVC, "called, address=0x{:X}, size=0x{:X}", address, size);
+
     // Get kernel instance.
     auto& kernel = system.Kernel();
 
@@ -1664,7 +1667,7 @@ static ResultCode UnmapProcessCodeMemory(Core::System& system, Handle process_ha
         return ResultInvalidAddress;
     }
 
-    if (size == 0 || Common::Is4KBAligned(size)) {
+    if (size == 0 || !Common::Is4KBAligned(size)) {
         LOG_ERROR(Kernel_SVC, "Size is zero or not page-aligned (size=0x{:016X}).", size);
         return ResultInvalidSize;
     }

src/core/hle/service/am/applets/applet_mii.cpp

@@ -1,100 +0,0 @@
-// Copyright 2022 yuzu Emulator Project
-// Licensed under GPLv2 or any later version
-// Refer to the license.txt file included.
-
-#include "common/assert.h"
-#include "common/logging/log.h"
-#include "core/core.h"
-#include "core/frontend/applets/mii.h"
-#include "core/hle/service/am/am.h"
-#include "core/hle/service/am/applets/applet_mii.h"
-
-namespace Service::AM::Applets {
-
-Mii::Mii(Core::System& system_, LibraryAppletMode applet_mode_,
-         const Core::Frontend::MiiApplet& frontend_)
-    : Applet{system_, applet_mode_}, frontend{frontend_}, system{system_} {}
-
-Mii::~Mii() = default;
-
-void Mii::Initialize() {
-    is_complete = false;
-
-    const auto storage = broker.PopNormalDataToApplet();
-    ASSERT(storage != nullptr);
-
-    const auto data = storage->GetData();
-    ASSERT(data.size() == sizeof(MiiAppletInput));
-
-    std::memcpy(&input_data, data.data(), sizeof(MiiAppletInput));
-}
-
-bool Mii::TransactionComplete() const {
-    return is_complete;
-}
-
-ResultCode Mii::GetStatus() const {
-    return ResultSuccess;
-}
-
-void Mii::ExecuteInteractive() {
-    UNREACHABLE_MSG("Unexpected interactive applet data!");
-}
-
-void Mii::Execute() {
-    if (is_complete) {
-        return;
-    }
-
-    const auto callback = [this](const Core::Frontend::MiiParameters& parameters) {
-        DisplayCompleted(parameters);
-    };
-
-    switch (input_data.applet_mode) {
-    case MiiAppletMode::ShowMiiEdit: {
-        Service::Mii::MiiManager manager;
-        Core::Frontend::MiiParameters params{
-            .is_editable = false,
-            .mii_data = input_data.mii_char_info.mii_data,
-        };
-        frontend.ShowMii(params, callback);
-        break;
-    }
-    case MiiAppletMode::EditMii: {
-        Service::Mii::MiiManager manager;
-        Core::Frontend::MiiParameters params{
-            .is_editable = true,
-            .mii_data = input_data.mii_char_info.mii_data,
-        };
-        frontend.ShowMii(params, callback);
-        break;
-    }
-    case MiiAppletMode::CreateMii: {
-        Service::Mii::MiiManager manager;
-        Core::Frontend::MiiParameters params{
-            .is_editable = true,
-            .mii_data = manager.BuildDefault(0),
-        };
-        frontend.ShowMii(params, callback);
-        break;
-    }
-    default:
-        UNIMPLEMENTED_MSG("Unimplemented LibAppletMiiEdit mode={:02X}!", input_data.applet_mode);
-    }
-}
-
-void Mii::DisplayCompleted(const Core::Frontend::MiiParameters& parameters) {
-    is_complete = true;
-
-    std::vector<u8> reply(sizeof(AppletOutputForCharInfoEditing));
-    output_data = {
-        .result = ResultSuccess,
-        .mii_data = parameters.mii_data,
-    };
-
-    std::memcpy(reply.data(), &output_data, sizeof(AppletOutputForCharInfoEditing));
-    broker.PushNormalDataFromApplet(std::make_shared<IStorage>(system, std::move(reply)));
-    broker.SignalStateChanged();
-}
-
-} // namespace Service::AM::Applets

src/core/hle/service/am/applets/applet_mii.h

@@ -1,90 +0,0 @@
-// Copyright 2022 yuzu Emulator Project
-// Licensed under GPLv2 or any later version
-// Refer to the license.txt file included.
-
-#pragma once
-
-#include <array>
-
-#include "core/hle/result.h"
-#include "core/hle/service/am/applets/applets.h"
-#include "core/hle/service/mii/mii_manager.h"
-
-namespace Core {
-class System;
-}
-
-namespace Service::AM::Applets {
-
-// This is nn::mii::AppletMode
-enum class MiiAppletMode : u32 {
-    ShowMiiEdit = 0,
-    AppendMii = 1,
-    AppendMiiImage = 2,
-    UpdateMiiImage = 3,
-    CreateMii = 4,
-    EditMii = 5,
-};
-
-struct MiiCharInfo {
-    Service::Mii::MiiInfo mii_data{};
-    INSERT_PADDING_BYTES(0x28);
-};
-static_assert(sizeof(MiiCharInfo) == 0x80, "MiiCharInfo has incorrect size.");
-
-// This is nn::mii::AppletInput
-struct MiiAppletInput {
-    s32 version{};
-    MiiAppletMode applet_mode{};
-    u32 special_mii_key_code{};
-    union {
-        std::array<Common::UUID, 8> valid_uuid;
-        MiiCharInfo mii_char_info;
-    };
-    Common::UUID used_uuid;
-    INSERT_PADDING_BYTES(0x64);
-};
-static_assert(sizeof(MiiAppletInput) == 0x100, "MiiAppletInput has incorrect size.");
-
-// This is nn::mii::AppletOutput
-struct MiiAppletOutput {
-    ResultCode result{ResultSuccess};
-    s32 index{};
-    INSERT_PADDING_BYTES(0x18);
-};
-static_assert(sizeof(MiiAppletOutput) == 0x20, "MiiAppletOutput has incorrect size.");
-
-// This is nn::mii::AppletOutputForCharInfoEditing
-struct AppletOutputForCharInfoEditing {
-    ResultCode result{ResultSuccess};
-    Service::Mii::MiiInfo mii_data{};
-    INSERT_PADDING_BYTES(0x24);
-};
-static_assert(sizeof(AppletOutputForCharInfoEditing) == 0x80,
-              "AppletOutputForCharInfoEditing has incorrect size.");
-
-class Mii final : public Applet {
-public:
-    explicit Mii(Core::System& system_, LibraryAppletMode applet_mode_,
-                 const Core::Frontend::MiiApplet& frontend_);
-    ~Mii() override;
-
-    void Initialize() override;
-
-    bool TransactionComplete() const override;
-    ResultCode GetStatus() const override;
-    void ExecuteInteractive() override;
-    void Execute() override;
-
-    void DisplayCompleted(const Core::Frontend::MiiParameters& parameters);
-
-private:
-    const Core::Frontend::MiiApplet& frontend;
-    MiiAppletInput input_data{};
-    AppletOutputForCharInfoEditing output_data{};
-
-    bool is_complete = false;
-    Core::System& system;
-};
-
-} // namespace Service::AM::Applets

src/core/hle/service/am/applets/applet_mii_edit.cpp

@@ -0,0 +1,139 @@
+// Copyright 2022 yuzu Emulator Project
+// Licensed under GPLv2 or any later version
+// Refer to the license.txt file included.
+
+#include "common/assert.h"
+#include "common/logging/log.h"
+#include "core/core.h"
+#include "core/frontend/applets/mii_edit.h"
+#include "core/hle/service/am/am.h"
+#include "core/hle/service/am/applets/applet_mii_edit.h"
+#include "core/hle/service/mii/mii_manager.h"
+
+namespace Service::AM::Applets {
+
+MiiEdit::MiiEdit(Core::System& system_, LibraryAppletMode applet_mode_,
+                 const Core::Frontend::MiiEditApplet& frontend_)
+    : Applet{system_, applet_mode_}, frontend{frontend_}, system{system_} {}
+
+MiiEdit::~MiiEdit() = default;
+
+void MiiEdit::Initialize() {
+    // Note: MiiEdit is not initialized with common arguments.
+    //       Instead, it is initialized by an AppletInput storage with size 0x100 bytes.
+    //       Do NOT call Applet::Initialize() here.
+
+    const auto storage = broker.PopNormalDataToApplet();
+    ASSERT(storage != nullptr);
+
+    const auto applet_input_data = storage->GetData();
+    ASSERT(applet_input_data.size() >= sizeof(MiiEditAppletInputCommon));
+
+    std::memcpy(&applet_input_common, applet_input_data.data(), sizeof(MiiEditAppletInputCommon));
+
+    LOG_INFO(Service_AM,
+             "Initializing MiiEdit Applet with MiiEditAppletVersion={} and MiiEditAppletMode={}",
+             applet_input_common.version, applet_input_common.applet_mode);
+
+    switch (applet_input_common.version) {
+    case MiiEditAppletVersion::Version3:
+        ASSERT(applet_input_data.size() ==
+               sizeof(MiiEditAppletInputCommon) + sizeof(MiiEditAppletInputV3));
+        std::memcpy(&applet_input_v3, applet_input_data.data() + sizeof(MiiEditAppletInputCommon),
+                    sizeof(MiiEditAppletInputV3));
+        break;
+    case MiiEditAppletVersion::Version4:
+        ASSERT(applet_input_data.size() ==
+               sizeof(MiiEditAppletInputCommon) + sizeof(MiiEditAppletInputV4));
+        std::memcpy(&applet_input_v4, applet_input_data.data() + sizeof(MiiEditAppletInputCommon),
+                    sizeof(MiiEditAppletInputV4));
+        break;
+    default:
+        UNIMPLEMENTED_MSG("Unknown MiiEditAppletVersion={} with size={}",
+                          applet_input_common.version, applet_input_data.size());
+        ASSERT(applet_input_data.size() >=
+               sizeof(MiiEditAppletInputCommon) + sizeof(MiiEditAppletInputV4));
+        std::memcpy(&applet_input_v4, applet_input_data.data() + sizeof(MiiEditAppletInputCommon),
+                    sizeof(MiiEditAppletInputV4));
+        break;
+    }
+}
+
+bool MiiEdit::TransactionComplete() const {
+    return is_complete;
+}
+
+ResultCode MiiEdit::GetStatus() const {
+    return ResultSuccess;
+}
+
+void MiiEdit::ExecuteInteractive() {
+    UNREACHABLE_MSG("Attempted to call interactive execution on non-interactive applet.");
+}
+
+void MiiEdit::Execute() {
+    if (is_complete) {
+        return;
+    }
+
+    // This is a default stub for each of the MiiEdit applet modes.
+    switch (applet_input_common.applet_mode) {
+    case MiiEditAppletMode::ShowMiiEdit:
+    case MiiEditAppletMode::AppendMii:
+    case MiiEditAppletMode::AppendMiiImage:
+    case MiiEditAppletMode::UpdateMiiImage:
+        MiiEditOutput(MiiEditResult::Success, 0);
+        break;
+    case MiiEditAppletMode::CreateMii:
+    case MiiEditAppletMode::EditMii: {
+        Service::Mii::MiiManager mii_manager;
+
+        const MiiEditCharInfo char_info{
+            .mii_info{applet_input_common.applet_mode == MiiEditAppletMode::EditMii
+                          ? applet_input_v4.char_info.mii_info
+                          : mii_manager.BuildDefault(0)},
+        };
+
+        MiiEditOutputForCharInfoEditing(MiiEditResult::Success, char_info);
+        break;
+    }
+    default:
+        UNIMPLEMENTED_MSG("Unknown MiiEditAppletMode={}", applet_input_common.applet_mode);
+
+        MiiEditOutput(MiiEditResult::Success, 0);
+        break;
+    }
+}
+
+void MiiEdit::MiiEditOutput(MiiEditResult result, s32 index) {
+    const MiiEditAppletOutput applet_output{
+        .result{result},
+        .index{index},
+    };
+
+    std::vector<u8> out_data(sizeof(MiiEditAppletOutput));
+    std::memcpy(out_data.data(), &applet_output, sizeof(MiiEditAppletOutput));
+
+    is_complete = true;
+
+    broker.PushNormalDataFromApplet(std::make_shared<IStorage>(system, std::move(out_data)));
+    broker.SignalStateChanged();
+}
+
+void MiiEdit::MiiEditOutputForCharInfoEditing(MiiEditResult result,
+                                              const MiiEditCharInfo& char_info) {
+    const MiiEditAppletOutputForCharInfoEditing applet_output{
+        .result{result},
+        .char_info{char_info},
+    };
+
+    std::vector<u8> out_data(sizeof(MiiEditAppletOutputForCharInfoEditing));
+    std::memcpy(out_data.data(), &applet_output, sizeof(MiiEditAppletOutputForCharInfoEditing));
+
+    is_complete = true;
+
+    broker.PushNormalDataFromApplet(std::make_shared<IStorage>(system, std::move(out_data)));
+    broker.SignalStateChanged();
+}
+
+} // namespace Service::AM::Applets

src/core/hle/service/am/applets/applet_mii_edit.h

@@ -0,0 +1,45 @@
+// Copyright 2022 yuzu Emulator Project
+// Licensed under GPLv2 or any later version
+// Refer to the license.txt file included.
+
+#pragma once
+
+#include "core/hle/result.h"
+#include "core/hle/service/am/applets/applet_mii_edit_types.h"
+#include "core/hle/service/am/applets/applets.h"
+
+namespace Core {
+class System;
+} // namespace Core
+
+namespace Service::AM::Applets {
+
+class MiiEdit final : public Applet {
+public:
+    explicit MiiEdit(Core::System& system_, LibraryAppletMode applet_mode_,
+                     const Core::Frontend::MiiEditApplet& frontend_);
+    ~MiiEdit() override;
+
+    void Initialize() override;
+
+    bool TransactionComplete() const override;
+    ResultCode GetStatus() const override;
+    void ExecuteInteractive() override;
+    void Execute() override;
+
+    void MiiEditOutput(MiiEditResult result, s32 index);
+
+    void MiiEditOutputForCharInfoEditing(MiiEditResult result, const MiiEditCharInfo& char_info);
+
+private:
+    const Core::Frontend::MiiEditApplet& frontend;
+    Core::System& system;
+
+    MiiEditAppletInputCommon applet_input_common{};
+    MiiEditAppletInputV3 applet_input_v3{};
+    MiiEditAppletInputV4 applet_input_v4{};
+
+    bool is_complete{false};
+};
+
+} // namespace Service::AM::Applets

src/core/hle/service/am/applets/applet_mii_edit_types.h

@@ -0,0 +1,83 @@
+// Copyright 2022 yuzu Emulator Project
+// Licensed under GPLv2 or any later version
+// Refer to the license.txt file included.
+
+#pragma once
+
+#include <array>
+
+#include "common/common_funcs.h"
+#include "common/common_types.h"
+#include "core/hle/service/mii/types.h"
+
+namespace Service::AM::Applets {
+
+enum class MiiEditAppletVersion : s32 {
+    Version3 = 0x3, // 1.0.0 - 10.1.1
+    Version4 = 0x4, // 10.2.0+
+};
+
+// This is nn::mii::AppletMode
+enum class MiiEditAppletMode : u32 {
+    ShowMiiEdit = 0,
+    AppendMii = 1,
+    AppendMiiImage = 2,
+    UpdateMiiImage = 3,
+    CreateMii = 4,
+    EditMii = 5,
+};
+
+enum class MiiEditResult : u32 {
+    Success,
+    Cancel,
+};
+
+struct MiiEditCharInfo {
+    Service::Mii::MiiInfo mii_info{};
+};
+static_assert(sizeof(MiiEditCharInfo) == 0x58, "MiiEditCharInfo has incorrect size.");
+
+struct MiiEditAppletInputCommon {
+    MiiEditAppletVersion version{};
+    MiiEditAppletMode applet_mode{};
+};
+static_assert(sizeof(MiiEditAppletInputCommon) == 0x8,
+              "MiiEditAppletInputCommon has incorrect size.");
+
+struct MiiEditAppletInputV3 {
+    u32 special_mii_key_code{};
+    std::array<Common::UUID, 8> valid_uuids{};
+    Common::UUID used_uuid{};
+    INSERT_PADDING_BYTES(0x64);
+};
+static_assert(sizeof(MiiEditAppletInputV3) == 0x100 - sizeof(MiiEditAppletInputCommon),
+              "MiiEditAppletInputV3 has incorrect size.");
+
+struct MiiEditAppletInputV4 {
+    u32 special_mii_key_code{};
+    MiiEditCharInfo char_info{};
+    INSERT_PADDING_BYTES(0x28);
+    Common::UUID used_uuid{};
+    INSERT_PADDING_BYTES(0x64);
+};
+static_assert(sizeof(MiiEditAppletInputV4) == 0x100 - sizeof(MiiEditAppletInputCommon),
+              "MiiEditAppletInputV4 has incorrect size.");
+
+// This is nn::mii::AppletOutput
+struct MiiEditAppletOutput {
+    MiiEditResult result{};
+    s32 index{};
+    INSERT_PADDING_BYTES(0x18);
+};
+static_assert(sizeof(MiiEditAppletOutput) == 0x20, "MiiEditAppletOutput has incorrect size.");
+
+// This is nn::mii::AppletOutputForCharInfoEditing
+struct MiiEditAppletOutputForCharInfoEditing {
+    MiiEditResult result{};
+    MiiEditCharInfo char_info{};
+    INSERT_PADDING_BYTES(0x24);
+};
+static_assert(sizeof(MiiEditAppletOutputForCharInfoEditing) == 0x80,
+              "MiiEditAppletOutputForCharInfoEditing has incorrect size.");
+
+} // namespace Service::AM::Applets

src/core/hle/service/am/applets/applet_software_keyboard.cpp

@@ -226,7 +226,7 @@ void SoftwareKeyboard::InitializeForeground() {
     ASSERT(work_buffer_storage != nullptr);
 
     if (swkbd_config_common.initial_string_length == 0) {
-        InitializeFrontendKeyboard();
+        InitializeFrontendNormalKeyboard();
         return;
     }
 
@@ -243,7 +243,7 @@ void SoftwareKeyboard::InitializeForeground() {
 
     LOG_DEBUG(Service_AM, "\nInitial Text: {}", Common::UTF16ToUTF8(initial_text));
 
-    InitializeFrontendKeyboard();
+    InitializeFrontendNormalKeyboard();
 }
 
 void SoftwareKeyboard::InitializeBackground(LibraryAppletMode library_applet_mode) {
@@ -480,129 +480,173 @@ void SoftwareKeyboard::ChangeState(SwkbdState state) {
     ReplyDefault();
 }
 
-void SoftwareKeyboard::InitializeFrontendKeyboard() {
-    if (is_background) {
-        const auto& appear_arg = swkbd_calc_arg.appear_arg;
+void SoftwareKeyboard::InitializeFrontendNormalKeyboard() {
+    std::u16string ok_text = Common::UTF16StringFromFixedZeroTerminatedBuffer(
+        swkbd_config_common.ok_text.data(), swkbd_config_common.ok_text.size());
 
-        std::u16string ok_text = Common::UTF16StringFromFixedZeroTerminatedBuffer(
-            appear_arg.ok_text.data(), appear_arg.ok_text.size());
+    std::u16string header_text = Common::UTF16StringFromFixedZeroTerminatedBuffer(
+        swkbd_config_common.header_text.data(), swkbd_config_common.header_text.size());
 
-        const u32 max_text_length =
-            appear_arg.max_text_length > 0 && appear_arg.max_text_length <= DEFAULT_MAX_TEXT_LENGTH
-                ? appear_arg.max_text_length
-                : DEFAULT_MAX_TEXT_LENGTH;
+    std::u16string sub_text = Common::UTF16StringFromFixedZeroTerminatedBuffer(
+        swkbd_config_common.sub_text.data(), swkbd_config_common.sub_text.size());
 
-        const u32 min_text_length =
-            appear_arg.min_text_length <= max_text_length ? appear_arg.min_text_length : 0;
+    std::u16string guide_text = Common::UTF16StringFromFixedZeroTerminatedBuffer(
+        swkbd_config_common.guide_text.data(), swkbd_config_common.guide_text.size());
 
-        const s32 initial_cursor_position =
-            current_cursor_position > 0 ? current_cursor_position : 0;
+    const u32 max_text_length =
+        swkbd_config_common.max_text_length > 0 &&
+                swkbd_config_common.max_text_length <= DEFAULT_MAX_TEXT_LENGTH
+            ? swkbd_config_common.max_text_length
+            : DEFAULT_MAX_TEXT_LENGTH;
 
-        const auto text_draw_type =
-            max_text_length <= 32 ? SwkbdTextDrawType::Line : SwkbdTextDrawType::Box;
+    const u32 min_text_length = swkbd_config_common.min_text_length <= max_text_length
+                                    ? swkbd_config_common.min_text_length
+                                    : 0;
 
-        Core::Frontend::KeyboardInitializeParameters initialize_parameters{
-            .ok_text{std::move(ok_text)},
-            .header_text{},
-            .sub_text{},
-            .guide_text{},
-            .initial_text{current_text},
-            .max_text_length{max_text_length},
-            .min_text_length{min_text_length},
-            .initial_cursor_position{initial_cursor_position},
-            .type{appear_arg.type},
-            .password_mode{SwkbdPasswordMode::Disabled},
-            .text_draw_type{text_draw_type},
-            .key_disable_flags{appear_arg.key_disable_flags},
-            .use_blur_background{false},
-            .enable_backspace_button{swkbd_calc_arg.enable_backspace_button},
-            .enable_return_button{appear_arg.enable_return_button},
-            .disable_cancel_button{appear_arg.disable_cancel_button},
-        };
+    const s32 initial_cursor_position = [this] {
+        switch (swkbd_config_common.initial_cursor_position) {
+        case SwkbdInitialCursorPosition::Start:
+        default:
+            return 0;
+        case SwkbdInitialCursorPosition::End:
+            return static_cast<s32>(initial_text.size());
+        }
+    }();
 
-        frontend.InitializeKeyboard(
-            true, std::move(initialize_parameters), {},
-            [this](SwkbdReplyType reply_type, std::u16string submitted_text, s32 cursor_position) {
-                SubmitTextInline(reply_type, submitted_text, cursor_position);
-            });
-    } else {
-        std::u16string ok_text = Common::UTF16StringFromFixedZeroTerminatedBuffer(
-            swkbd_config_common.ok_text.data(), swkbd_config_common.ok_text.size());
+    const auto text_draw_type = [this, max_text_length] {
+        switch (swkbd_config_common.text_draw_type) {
+        case SwkbdTextDrawType::Line:
+        default:
+            return max_text_length <= 32 ? SwkbdTextDrawType::Line : SwkbdTextDrawType::Box;
+        case SwkbdTextDrawType::Box:
+        case SwkbdTextDrawType::DownloadCode:
+            return swkbd_config_common.text_draw_type;
+        }
+    }();
 
-        std::u16string header_text = Common::UTF16StringFromFixedZeroTerminatedBuffer(
-            swkbd_config_common.header_text.data(), swkbd_config_common.header_text.size());
+    const auto enable_return_button =
+        text_draw_type == SwkbdTextDrawType::Box ? swkbd_config_common.enable_return_button : false;
 
-        std::u16string sub_text = Common::UTF16StringFromFixedZeroTerminatedBuffer(
-            swkbd_config_common.sub_text.data(), swkbd_config_common.sub_text.size());
+    const auto disable_cancel_button = swkbd_applet_version >= SwkbdAppletVersion::Version393227
+                                           ? swkbd_config_new.disable_cancel_button
+                                           : false;
 
-        std::u16string guide_text = Common::UTF16StringFromFixedZeroTerminatedBuffer(
-            swkbd_config_common.guide_text.data(), swkbd_config_common.guide_text.size());
+    Core::Frontend::KeyboardInitializeParameters initialize_parameters{
+        .ok_text{std::move(ok_text)},
+        .header_text{std::move(header_text)},
+        .sub_text{std::move(sub_text)},
+        .guide_text{std::move(guide_text)},
+        .initial_text{initial_text},
+        .max_text_length{max_text_length},
+        .min_text_length{min_text_length},
+        .initial_cursor_position{initial_cursor_position},
+        .type{swkbd_config_common.type},
+        .password_mode{swkbd_config_common.password_mode},
+        .text_draw_type{text_draw_type},
+        .key_disable_flags{swkbd_config_common.key_disable_flags},
+        .use_blur_background{swkbd_config_common.use_blur_background},
+        .enable_backspace_button{true},
+        .enable_return_button{enable_return_button},
+        .disable_cancel_button{disable_cancel_button},
+    };
 
-        const u32 max_text_length =
-            swkbd_config_common.max_text_length > 0 &&
-                    swkbd_config_common.max_text_length <= DEFAULT_MAX_TEXT_LENGTH
-                ? swkbd_config_common.max_text_length
-                : DEFAULT_MAX_TEXT_LENGTH;
+    frontend.InitializeKeyboard(
+        false, std::move(initialize_parameters),
+        [this](SwkbdResult result, std::u16string submitted_text, bool confirmed) {
+            SubmitTextNormal(result, submitted_text, confirmed);
+        },
+        {});
+}
 
-        const u32 min_text_length = swkbd_config_common.min_text_length <= max_text_length
-                                        ? swkbd_config_common.min_text_length
-                                        : 0;
+void SoftwareKeyboard::InitializeFrontendInlineKeyboard(
+    Core::Frontend::KeyboardInitializeParameters initialize_parameters) {
+    frontend.InitializeKeyboard(
+        true, std::move(initialize_parameters), {},
+        [this](SwkbdReplyType reply_type, std::u16string submitted_text, s32 cursor_position) {
+            SubmitTextInline(reply_type, submitted_text, cursor_position);
+        });
+}
 
-        const s32 initial_cursor_position = [this] {
-            switch (swkbd_config_common.initial_cursor_position) {
-            case SwkbdInitialCursorPosition::Start:
-            default:
-                return 0;
-            case SwkbdInitialCursorPosition::End:
-                return static_cast<s32>(initial_text.size());
-            }
-        }();
+void SoftwareKeyboard::InitializeFrontendInlineKeyboardOld() {
+    const auto& appear_arg = swkbd_calc_arg_old.appear_arg;
 
-        const auto text_draw_type = [this, max_text_length] {
-            switch (swkbd_config_common.text_draw_type) {
-            case SwkbdTextDrawType::Line:
-            default:
-                return max_text_length <= 32 ? SwkbdTextDrawType::Line : SwkbdTextDrawType::Box;
-            case SwkbdTextDrawType::Box:
-            case SwkbdTextDrawType::DownloadCode:
-                return swkbd_config_common.text_draw_type;
-            }
-        }();
+    std::u16string ok_text = Common::UTF16StringFromFixedZeroTerminatedBuffer(
+        appear_arg.ok_text.data(), appear_arg.ok_text.size());
 
-        const auto enable_return_button = text_draw_type == SwkbdTextDrawType::Box
-                                              ? swkbd_config_common.enable_return_button
-                                              : false;
+    const u32 max_text_length =
+        appear_arg.max_text_length > 0 && appear_arg.max_text_length <= DEFAULT_MAX_TEXT_LENGTH
+            ? appear_arg.max_text_length
+            : DEFAULT_MAX_TEXT_LENGTH;
 
-        const auto disable_cancel_button = swkbd_applet_version >= SwkbdAppletVersion::Version393227
-                                               ? swkbd_config_new.disable_cancel_button
-                                               : false;
+    const u32 min_text_length =
+        appear_arg.min_text_length <= max_text_length ? appear_arg.min_text_length : 0;
 
-        Core::Frontend::KeyboardInitializeParameters initialize_parameters{
-            .ok_text{std::move(ok_text)},
-            .header_text{std::move(header_text)},
-            .sub_text{std::move(sub_text)},
-            .guide_text{std::move(guide_text)},
-            .initial_text{initial_text},
-            .max_text_length{max_text_length},
-            .min_text_length{min_text_length},
-            .initial_cursor_position{initial_cursor_position},
-            .type{swkbd_config_common.type},
-            .password_mode{swkbd_config_common.password_mode},
-            .text_draw_type{text_draw_type},
-            .key_disable_flags{swkbd_config_common.key_disable_flags},
-            .use_blur_background{swkbd_config_common.use_blur_background},
-            .enable_backspace_button{true},
-            .enable_return_button{enable_return_button},
-            .disable_cancel_button{disable_cancel_button},
-        };
+    const s32 initial_cursor_position = current_cursor_position > 0 ? current_cursor_position : 0;
 
-        frontend.InitializeKeyboard(
-            false, std::move(initialize_parameters),
-            [this](SwkbdResult result, std::u16string submitted_text, bool confirmed) {
-                SubmitTextNormal(result, submitted_text, confirmed);
-            },
-            {});
-    }
+    const auto text_draw_type =
+        max_text_length <= 32 ? SwkbdTextDrawType::Line : SwkbdTextDrawType::Box;
+
+    Core::Frontend::KeyboardInitializeParameters initialize_parameters{
+        .ok_text{std::move(ok_text)},
+        .header_text{},
+        .sub_text{},
+        .guide_text{},
+        .initial_text{current_text},
+        .max_text_length{max_text_length},
+        .min_text_length{min_text_length},
+        .initial_cursor_position{initial_cursor_position},
+        .type{appear_arg.type},
+        .password_mode{SwkbdPasswordMode::Disabled},
+        .text_draw_type{text_draw_type},
+        .key_disable_flags{appear_arg.key_disable_flags},
+        .use_blur_background{false},
+        .enable_backspace_button{swkbd_calc_arg_old.enable_backspace_button},
+        .enable_return_button{appear_arg.enable_return_button},
+        .disable_cancel_button{appear_arg.disable_cancel_button},
+    };
+
+    InitializeFrontendInlineKeyboard(std::move(initialize_parameters));
+}
+
+void SoftwareKeyboard::InitializeFrontendInlineKeyboardNew() {
+    const auto& appear_arg = swkbd_calc_arg_new.appear_arg;
+
+    std::u16string ok_text = Common::UTF16StringFromFixedZeroTerminatedBuffer(
+        appear_arg.ok_text.data(), appear_arg.ok_text.size());
+
+    const u32 max_text_length =
+        appear_arg.max_text_length > 0 && appear_arg.max_text_length <= DEFAULT_MAX_TEXT_LENGTH
+            ? appear_arg.max_text_length
+            : DEFAULT_MAX_TEXT_LENGTH;
+
+    const u32 min_text_length =
+        appear_arg.min_text_length <= max_text_length ? appear_arg.min_text_length : 0;
+
+    const s32 initial_cursor_position = current_cursor_position > 0 ? current_cursor_position : 0;
+
+    const auto text_draw_type =
+        max_text_length <= 32 ? SwkbdTextDrawType::Line : SwkbdTextDrawType::Box;
+
+    Core::Frontend::KeyboardInitializeParameters initialize_parameters{
+        .ok_text{std::move(ok_text)},
+        .header_text{},
+        .sub_text{},
+        .guide_text{},
+        .initial_text{current_text},
+        .max_text_length{max_text_length},
+        .min_text_length{min_text_length},
+        .initial_cursor_position{initial_cursor_position},
+        .type{appear_arg.type},
+        .password_mode{SwkbdPasswordMode::Disabled},
+        .text_draw_type{text_draw_type},
+        .key_disable_flags{appear_arg.key_disable_flags},
+        .use_blur_background{false},
+        .enable_backspace_button{swkbd_calc_arg_new.enable_backspace_button},
+        .enable_return_button{appear_arg.enable_return_button},
+        .disable_cancel_button{appear_arg.disable_cancel_button},
+    };
+
+    InitializeFrontendInlineKeyboard(std::move(initialize_parameters));
 }
 
 void SoftwareKeyboard::ShowNormalKeyboard() {
@@ -614,14 +658,21 @@ void SoftwareKeyboard::ShowTextCheckDialog(SwkbdTextCheckResult text_check_resul
     frontend.ShowTextCheckDialog(text_check_result, std::move(text_check_message));
 }
 
-void SoftwareKeyboard::ShowInlineKeyboard() {
+void SoftwareKeyboard::ShowInlineKeyboard(
+    Core::Frontend::InlineAppearParameters appear_parameters) {
+    frontend.ShowInlineKeyboard(std::move(appear_parameters));
+
+    ChangeState(SwkbdState::InitializedIsShown);
+}
+
+void SoftwareKeyboard::ShowInlineKeyboardOld() {
     if (swkbd_state != SwkbdState::InitializedIsHidden) {
         return;
     }
 
     ChangeState(SwkbdState::InitializedIsAppearing);
 
-    const auto& appear_arg = swkbd_calc_arg.appear_arg;
+    const auto& appear_arg = swkbd_calc_arg_old.appear_arg;
 
     const u32 max_text_length =
         appear_arg.max_text_length > 0 && appear_arg.max_text_length <= DEFAULT_MAX_TEXT_LENGTH
@@ -634,21 +685,54 @@ void SoftwareKeyboard::ShowInlineKeyboard() {
     Core::Frontend::InlineAppearParameters appear_parameters{
         .max_text_length{max_text_length},
         .min_text_length{min_text_length},
-        .key_top_scale_x{swkbd_calc_arg.key_top_scale_x},
-        .key_top_scale_y{swkbd_calc_arg.key_top_scale_y},
-        .key_top_translate_x{swkbd_calc_arg.key_top_translate_x},
-        .key_top_translate_y{swkbd_calc_arg.key_top_translate_y},
+        .key_top_scale_x{swkbd_calc_arg_old.key_top_scale_x},
+        .key_top_scale_y{swkbd_calc_arg_old.key_top_scale_y},
+        .key_top_translate_x{swkbd_calc_arg_old.key_top_translate_x},
+        .key_top_translate_y{swkbd_calc_arg_old.key_top_translate_y},
         .type{appear_arg.type},
         .key_disable_flags{appear_arg.key_disable_flags},
-        .key_top_as_floating{swkbd_calc_arg.key_top_as_floating},
-        .enable_backspace_button{swkbd_calc_arg.enable_backspace_button},
+        .key_top_as_floating{swkbd_calc_arg_old.key_top_as_floating},
+        .enable_backspace_button{swkbd_calc_arg_old.enable_backspace_button},
         .enable_return_button{appear_arg.enable_return_button},
         .disable_cancel_button{appear_arg.disable_cancel_button},
     };
 
-    frontend.ShowInlineKeyboard(std::move(appear_parameters));
+    ShowInlineKeyboard(std::move(appear_parameters));
+}
 
-    ChangeState(SwkbdState::InitializedIsShown);
+void SoftwareKeyboard::ShowInlineKeyboardNew() {
+    if (swkbd_state != SwkbdState::InitializedIsHidden) {
+        return;
+    }
+
+    ChangeState(SwkbdState::InitializedIsAppearing);
+
+    const auto& appear_arg = swkbd_calc_arg_new.appear_arg;
+
+    const u32 max_text_length =
+        appear_arg.max_text_length > 0 && appear_arg.max_text_length <= DEFAULT_MAX_TEXT_LENGTH
+            ? appear_arg.max_text_length
+            : DEFAULT_MAX_TEXT_LENGTH;
+
+    const u32 min_text_length =
+        appear_arg.min_text_length <= max_text_length ? appear_arg.min_text_length : 0;
+
+    Core::Frontend::InlineAppearParameters appear_parameters{
+        .max_text_length{max_text_length},
+        .min_text_length{min_text_length},
+        .key_top_scale_x{swkbd_calc_arg_new.key_top_scale_x},
+        .key_top_scale_y{swkbd_calc_arg_new.key_top_scale_y},
+        .key_top_translate_x{swkbd_calc_arg_new.key_top_translate_x},
+        .key_top_translate_y{swkbd_calc_arg_new.key_top_translate_y},
+        .type{appear_arg.type},
+        .key_disable_flags{appear_arg.key_disable_flags},
+        .key_top_as_floating{swkbd_calc_arg_new.key_top_as_floating},
+        .enable_backspace_button{swkbd_calc_arg_new.enable_backspace_button},
+        .enable_return_button{appear_arg.enable_return_button},
+        .disable_cancel_button{appear_arg.disable_cancel_button},
+    };
+
+    ShowInlineKeyboard(std::move(appear_parameters));
 }
 
 void SoftwareKeyboard::HideInlineKeyboard() {
@@ -693,6 +777,8 @@ void SoftwareKeyboard::RequestFinalize(const std::vector<u8>& request_data) {
 
 void SoftwareKeyboard::RequestSetUserWordInfo(const std::vector<u8>& request_data) {
     LOG_WARNING(Service_AM, "SetUserWordInfo is not implemented.");
+
+    ReplyReleasedUserWordInfo();
 }
 
 void SoftwareKeyboard::RequestSetCustomizeDic(const std::vector<u8>& request_data) {
@@ -702,53 +788,135 @@ void SoftwareKeyboard::RequestSetCustomizeDic(const std::vector<u8>& request_dat
 void SoftwareKeyboard::RequestCalc(const std::vector<u8>& request_data) {
     LOG_DEBUG(Service_AM, "Processing Request: Calc");
 
-    ASSERT(request_data.size() == sizeof(SwkbdRequestCommand) + sizeof(SwkbdCalcArg));
+    ASSERT(request_data.size() >= sizeof(SwkbdRequestCommand) + sizeof(SwkbdCalcArgCommon));
 
-    std::memcpy(&swkbd_calc_arg, request_data.data() + sizeof(SwkbdRequestCommand),
-                sizeof(SwkbdCalcArg));
+    std::memcpy(&swkbd_calc_arg_common, request_data.data() + sizeof(SwkbdRequestCommand),
+                sizeof(SwkbdCalcArgCommon));
 
-    if (swkbd_calc_arg.flags.set_input_text) {
+    switch (swkbd_calc_arg_common.calc_arg_size) {
+    case sizeof(SwkbdCalcArgCommon) + sizeof(SwkbdCalcArgOld):
+        ASSERT(request_data.size() ==
+               sizeof(SwkbdRequestCommand) + sizeof(SwkbdCalcArgCommon) + sizeof(SwkbdCalcArgOld));
+        std::memcpy(&swkbd_calc_arg_old,
+                    request_data.data() + sizeof(SwkbdRequestCommand) + sizeof(SwkbdCalcArgCommon),
+                    sizeof(SwkbdCalcArgOld));
+        RequestCalcOld();
+        break;
+    case sizeof(SwkbdCalcArgCommon) + sizeof(SwkbdCalcArgNew):
+        ASSERT(request_data.size() ==
+               sizeof(SwkbdRequestCommand) + sizeof(SwkbdCalcArgCommon) + sizeof(SwkbdCalcArgNew));
+        std::memcpy(&swkbd_calc_arg_new,
+                    request_data.data() + sizeof(SwkbdRequestCommand) + sizeof(SwkbdCalcArgCommon),
+                    sizeof(SwkbdCalcArgNew));
+        RequestCalcNew();
+        break;
+    default:
+        UNIMPLEMENTED_MSG("Unknown SwkbdCalcArg size={}", swkbd_calc_arg_common.calc_arg_size);
+        ASSERT(request_data.size() >=
+               sizeof(SwkbdRequestCommand) + sizeof(SwkbdCalcArgCommon) + sizeof(SwkbdCalcArgNew));
+        std::memcpy(&swkbd_calc_arg_new,
+                    request_data.data() + sizeof(SwkbdRequestCommand) + sizeof(SwkbdCalcArgCommon),
+                    sizeof(SwkbdCalcArgNew));
+        RequestCalcNew();
+        break;
+    }
+}
+
+void SoftwareKeyboard::RequestCalcOld() {
+    if (swkbd_calc_arg_common.flags.set_input_text) {
         current_text = Common::UTF16StringFromFixedZeroTerminatedBuffer(
-            swkbd_calc_arg.input_text.data(), swkbd_calc_arg.input_text.size());
+            swkbd_calc_arg_old.input_text.data(), swkbd_calc_arg_old.input_text.size());
     }
 
-    if (swkbd_calc_arg.flags.set_cursor_position) {
-        current_cursor_position = swkbd_calc_arg.cursor_position;
+    if (swkbd_calc_arg_common.flags.set_cursor_position) {
+        current_cursor_position = swkbd_calc_arg_old.cursor_position;
     }
 
-    if (swkbd_calc_arg.flags.set_utf8_mode) {
-        inline_use_utf8 = swkbd_calc_arg.utf8_mode;
+    if (swkbd_calc_arg_common.flags.set_utf8_mode) {
+        inline_use_utf8 = swkbd_calc_arg_old.utf8_mode;
     }
 
     if (swkbd_state <= SwkbdState::InitializedIsHidden &&
-        swkbd_calc_arg.flags.unset_customize_dic) {
+        swkbd_calc_arg_common.flags.unset_customize_dic) {
         ReplyUnsetCustomizeDic();
     }
 
     if (swkbd_state <= SwkbdState::InitializedIsHidden &&
-        swkbd_calc_arg.flags.unset_user_word_info) {
+        swkbd_calc_arg_common.flags.unset_user_word_info) {
         ReplyReleasedUserWordInfo();
     }
 
-    if (swkbd_state == SwkbdState::NotInitialized && swkbd_calc_arg.flags.set_initialize_arg) {
-        InitializeFrontendKeyboard();
+    if (swkbd_state == SwkbdState::NotInitialized &&
+        swkbd_calc_arg_common.flags.set_initialize_arg) {
+        InitializeFrontendInlineKeyboardOld();
 
         ChangeState(SwkbdState::InitializedIsHidden);
 
         ReplyFinishedInitialize();
     }
 
-    if (!swkbd_calc_arg.flags.set_initialize_arg &&
-        (swkbd_calc_arg.flags.set_input_text || swkbd_calc_arg.flags.set_cursor_position)) {
+    if (!swkbd_calc_arg_common.flags.set_initialize_arg &&
+        (swkbd_calc_arg_common.flags.set_input_text ||
+         swkbd_calc_arg_common.flags.set_cursor_position)) {
         InlineTextChanged();
     }
 
-    if (swkbd_state == SwkbdState::InitializedIsHidden && swkbd_calc_arg.flags.appear) {
-        ShowInlineKeyboard();
+    if (swkbd_state == SwkbdState::InitializedIsHidden && swkbd_calc_arg_common.flags.appear) {
+        ShowInlineKeyboardOld();
         return;
     }
 
-    if (swkbd_state == SwkbdState::InitializedIsShown && swkbd_calc_arg.flags.disappear) {
+    if (swkbd_state == SwkbdState::InitializedIsShown && swkbd_calc_arg_common.flags.disappear) {
+        HideInlineKeyboard();
+        return;
+    }
+}
+
+void SoftwareKeyboard::RequestCalcNew() {
+    if (swkbd_calc_arg_common.flags.set_input_text) {
+        current_text = Common::UTF16StringFromFixedZeroTerminatedBuffer(
+            swkbd_calc_arg_new.input_text.data(), swkbd_calc_arg_new.input_text.size());
+    }
+
+    if (swkbd_calc_arg_common.flags.set_cursor_position) {
+        current_cursor_position = swkbd_calc_arg_new.cursor_position;
+    }
+
+    if (swkbd_calc_arg_common.flags.set_utf8_mode) {
+        inline_use_utf8 = swkbd_calc_arg_new.utf8_mode;
+    }
+
+    if (swkbd_state <= SwkbdState::InitializedIsHidden &&
+        swkbd_calc_arg_common.flags.unset_customize_dic) {
+        ReplyUnsetCustomizeDic();
+    }
+
+    if (swkbd_state <= SwkbdState::InitializedIsHidden &&
+        swkbd_calc_arg_common.flags.unset_user_word_info) {
+        ReplyReleasedUserWordInfo();
+    }
+
+    if (swkbd_state == SwkbdState::NotInitialized &&
+        swkbd_calc_arg_common.flags.set_initialize_arg) {
+        InitializeFrontendInlineKeyboardNew();
+
+        ChangeState(SwkbdState::InitializedIsHidden);
+
+        ReplyFinishedInitialize();
+    }
+
+    if (!swkbd_calc_arg_common.flags.set_initialize_arg &&
+        (swkbd_calc_arg_common.flags.set_input_text ||
+         swkbd_calc_arg_common.flags.set_cursor_position)) {
+        InlineTextChanged();
+    }
+
+    if (swkbd_state == SwkbdState::InitializedIsHidden && swkbd_calc_arg_common.flags.appear) {
+        ShowInlineKeyboardNew();
+        return;
+    }
+
+    if (swkbd_state == SwkbdState::InitializedIsShown && swkbd_calc_arg_common.flags.disappear) {
         HideInlineKeyboard();
         return;
     }

src/core/hle/service/am/applets/applet_software_keyboard.h

@@ -13,6 +13,11 @@ namespace Core {
 class System;
 }
 
+namespace Core::Frontend {
+struct KeyboardInitializeParameters;
+struct InlineAppearParameters;
+} // namespace Core::Frontend
+
 namespace Service::AM::Applets {
 
 class SoftwareKeyboard final : public Applet {
@@ -78,13 +83,22 @@ private:
     void ChangeState(SwkbdState state);
 
     /**
-     * Signals the frontend to initialize the software keyboard with common parameters.
-     * This initializes either the normal software keyboard or the inline software keyboard
-     * depending on the state of is_background.
+     * Signals the frontend to initialize the normal software keyboard with common parameters.
      * Note that this does not cause the keyboard to appear.
-     * Use the respective Show*Keyboard() functions to cause the respective keyboards to appear.
+     * Use the ShowNormalKeyboard() functions to cause the keyboard to appear.
      */
-    void InitializeFrontendKeyboard();
+    void InitializeFrontendNormalKeyboard();
+
+    /**
+     * Signals the frontend to initialize the inline software keyboard with common parameters.
+     * Note that this does not cause the keyboard to appear.
+     * Use the ShowInlineKeyboard() to cause the keyboard to appear.
+     */
+    void InitializeFrontendInlineKeyboard(
+        Core::Frontend::KeyboardInitializeParameters initialize_parameters);
+
+    void InitializeFrontendInlineKeyboardOld();
+    void InitializeFrontendInlineKeyboardNew();
 
     /// Signals the frontend to show the normal software keyboard.
     void ShowNormalKeyboard();
@@ -94,7 +108,10 @@ private:
                              std::u16string text_check_message);
 
     /// Signals the frontend to show the inline software keyboard.
-    void ShowInlineKeyboard();
+    void ShowInlineKeyboard(Core::Frontend::InlineAppearParameters appear_parameters);
+
+    void ShowInlineKeyboardOld();
+    void ShowInlineKeyboardNew();
 
     /// Signals the frontend to hide the inline software keyboard.
     void HideInlineKeyboard();
@@ -111,6 +128,8 @@ private:
     void RequestSetUserWordInfo(const std::vector<u8>& request_data);
     void RequestSetCustomizeDic(const std::vector<u8>& request_data);
     void RequestCalc(const std::vector<u8>& request_data);
+    void RequestCalcOld();
+    void RequestCalcNew();
     void RequestSetCustomizedDictionaries(const std::vector<u8>& request_data);
     void RequestUnsetCustomizedDictionaries(const std::vector<u8>& request_data);
     void RequestSetChangedStringV2Flag(const std::vector<u8>& request_data);
@@ -149,7 +168,9 @@ private:
 
     SwkbdState swkbd_state{SwkbdState::NotInitialized};
     SwkbdInitializeArg swkbd_initialize_arg;
-    SwkbdCalcArg swkbd_calc_arg;
+    SwkbdCalcArgCommon swkbd_calc_arg_common;
+    SwkbdCalcArgOld swkbd_calc_arg_old;
+    SwkbdCalcArgNew swkbd_calc_arg_new;
     bool use_changed_string_v2{false};
     bool use_moved_cursor_v2{false};
     bool inline_use_utf8{false};

src/core/hle/service/am/applets/applet_software_keyboard_types.h

@@ -10,6 +10,7 @@
 #include "common/common_funcs.h"
 #include "common/common_types.h"
 #include "common/swap.h"
+#include "common/uuid.h"
 
 namespace Service::AM::Applets {
 
@@ -216,7 +217,7 @@ struct SwkbdInitializeArg {
 };
 static_assert(sizeof(SwkbdInitializeArg) == 0x8, "SwkbdInitializeArg has incorrect size.");
 
-struct SwkbdAppearArg {
+struct SwkbdAppearArgOld {
     SwkbdType type{};
     std::array<char16_t, MAX_OK_TEXT_LENGTH + 1> ok_text{};
     char16_t left_optional_symbol_key{};
@@ -229,19 +230,46 @@ struct SwkbdAppearArg {
     bool enable_return_button{};
     INSERT_PADDING_BYTES(3);
     u32 flags{};
-    INSERT_PADDING_WORDS(6);
+    bool is_use_save_data{};
+    INSERT_PADDING_BYTES(7);
+    Common::UUID user_id{};
 };
-static_assert(sizeof(SwkbdAppearArg) == 0x48, "SwkbdAppearArg has incorrect size.");
+static_assert(sizeof(SwkbdAppearArgOld) == 0x48, "SwkbdAppearArg has incorrect size.");
 
-struct SwkbdCalcArg {
+struct SwkbdAppearArgNew {
+    SwkbdType type{};
+    std::array<char16_t, MAX_OK_TEXT_LENGTH + 1> ok_text{};
+    char16_t left_optional_symbol_key{};
+    char16_t right_optional_symbol_key{};
+    bool use_prediction{};
+    bool disable_cancel_button{};
+    SwkbdKeyDisableFlags key_disable_flags{};
+    u32 max_text_length{};
+    u32 min_text_length{};
+    bool enable_return_button{};
+    INSERT_PADDING_BYTES(3);
+    u32 flags{};
+    bool is_use_save_data{};
+    INSERT_PADDING_BYTES(7);
+    Common::UUID user_id{};
+    u64 start_sampling_number{};
+    INSERT_PADDING_WORDS(8);
+};
+static_assert(sizeof(SwkbdAppearArgNew) == 0x70, "SwkbdAppearArg has incorrect size.");
+
+struct SwkbdCalcArgCommon {
     u32 unknown{};
     u16 calc_arg_size{};
     INSERT_PADDING_BYTES(2);
     SwkbdCalcArgFlags flags{};
     SwkbdInitializeArg initialize_arg{};
+};
+static_assert(sizeof(SwkbdCalcArgCommon) == 0x18, "SwkbdCalcArgCommon has incorrect size.");
+
+struct SwkbdCalcArgOld {
     f32 volume{};
     s32 cursor_position{};
-    SwkbdAppearArg appear_arg{};
+    SwkbdAppearArgOld appear_arg{};
     std::array<char16_t, 0x1FA> input_text{};
     bool utf8_mode{};
     INSERT_PADDING_BYTES(1);
@@ -265,7 +293,39 @@ struct SwkbdCalcArg {
     u8 se_group{};
     INSERT_PADDING_BYTES(3);
 };
-static_assert(sizeof(SwkbdCalcArg) == 0x4A0, "SwkbdCalcArg has incorrect size.");
+static_assert(sizeof(SwkbdCalcArgOld) == 0x4A0 - sizeof(SwkbdCalcArgCommon),
+              "SwkbdCalcArgOld has incorrect size.");
+
+struct SwkbdCalcArgNew {
+    SwkbdAppearArgNew appear_arg{};
+    f32 volume{};
+    s32 cursor_position{};
+    std::array<char16_t, 0x1FA> input_text{};
+    bool utf8_mode{};
+    INSERT_PADDING_BYTES(1);
+    bool enable_backspace_button{};
+    INSERT_PADDING_BYTES(3);
+    bool key_top_as_floating{};
+    bool footer_scalable{};
+    bool alpha_enabled_in_input_mode{};
+    u8 input_mode_fade_type{};
+    bool disable_touch{};
+    bool disable_hardware_keyboard{};
+    INSERT_PADDING_BYTES(8);
+    f32 key_top_scale_x{};
+    f32 key_top_scale_y{};
+    f32 key_top_translate_x{};
+    f32 key_top_translate_y{};
+    f32 key_top_bg_alpha{};
+    f32 footer_bg_alpha{};
+    f32 balloon_scale{};
+    INSERT_PADDING_WORDS(4);
+    u8 se_group{};
+    INSERT_PADDING_BYTES(3);
+    INSERT_PADDING_WORDS(8);
+};
+static_assert(sizeof(SwkbdCalcArgNew) == 0x4E8 - sizeof(SwkbdCalcArgCommon),
+              "SwkbdCalcArgNew has incorrect size.");
 
 struct SwkbdChangedStringArg {
     u32 text_length{};

src/core/hle/service/am/applets/applets.cpp

@@ -9,7 +9,7 @@
 #include "core/frontend/applets/controller.h"
 #include "core/frontend/applets/error.h"
 #include "core/frontend/applets/general_frontend.h"
-#include "core/frontend/applets/mii.h"
+#include "core/frontend/applets/mii_edit.h"
 #include "core/frontend/applets/profile_select.h"
 #include "core/frontend/applets/software_keyboard.h"
 #include "core/frontend/applets/web_browser.h"
@@ -20,7 +20,7 @@
 #include "core/hle/service/am/applets/applet_controller.h"
 #include "core/hle/service/am/applets/applet_error.h"
 #include "core/hle/service/am/applets/applet_general_backend.h"
-#include "core/hle/service/am/applets/applet_mii.h"
+#include "core/hle/service/am/applets/applet_mii_edit.h"
 #include "core/hle/service/am/applets/applet_profile_select.h"
 #include "core/hle/service/am/applets/applet_software_keyboard.h"
 #include "core/hle/service/am/applets/applet_web_browser.h"
@@ -173,12 +173,12 @@ void Applet::Initialize() {
 AppletFrontendSet::AppletFrontendSet() = default;
 
 AppletFrontendSet::AppletFrontendSet(ControllerApplet controller_applet, ErrorApplet error_applet,
+                                     MiiEdit mii_edit_,
                                      ParentalControlsApplet parental_controls_applet,
-                                     MiiApplet mii_applet, PhotoViewer photo_viewer_,
-                                     ProfileSelect profile_select_,
+                                     PhotoViewer photo_viewer_, ProfileSelect profile_select_,
                                      SoftwareKeyboard software_keyboard_, WebBrowser web_browser_)
     : controller{std::move(controller_applet)}, error{std::move(error_applet)},
-      parental_controls{std::move(parental_controls_applet)}, mii{std::move(mii_applet)},
+      mii_edit{std::move(mii_edit_)}, parental_controls{std::move(parental_controls_applet)},
       photo_viewer{std::move(photo_viewer_)}, profile_select{std::move(profile_select_)},
       software_keyboard{std::move(software_keyboard_)}, web_browser{std::move(web_browser_)} {}
 
@@ -205,12 +205,12 @@ void AppletManager::SetAppletFrontendSet(AppletFrontendSet set) {
         frontend.error = std::move(set.error);
     }
 
-    if (set.parental_controls != nullptr) {
-        frontend.parental_controls = std::move(set.parental_controls);
+    if (set.mii_edit != nullptr) {
+        frontend.mii_edit = std::move(set.mii_edit);
     }
 
-    if (set.mii != nullptr) {
-        frontend.mii = std::move(set.mii);
+    if (set.parental_controls != nullptr) {
+        frontend.parental_controls = std::move(set.parental_controls);
     }
 
     if (set.photo_viewer != nullptr) {
@@ -245,15 +245,15 @@ void AppletManager::SetDefaultAppletsIfMissing() {
         frontend.error = std::make_unique<Core::Frontend::DefaultErrorApplet>();
     }
 
+    if (frontend.mii_edit == nullptr) {
+        frontend.mii_edit = std::make_unique<Core::Frontend::DefaultMiiEditApplet>();
+    }
+
     if (frontend.parental_controls == nullptr) {
         frontend.parental_controls =
             std::make_unique<Core::Frontend::DefaultParentalControlsApplet>();
     }
 
-    if (frontend.mii == nullptr) {
-        frontend.mii = std::make_unique<Core::Frontend::DefaultMiiApplet>();
-    }
-
     if (frontend.photo_viewer == nullptr) {
         frontend.photo_viewer = std::make_unique<Core::Frontend::DefaultPhotoViewerApplet>();
     }
@@ -289,7 +289,7 @@ std::shared_ptr<Applet> AppletManager::GetApplet(AppletId id, LibraryAppletMode
     case AppletId::SoftwareKeyboard:
         return std::make_shared<SoftwareKeyboard>(system, mode, *frontend.software_keyboard);
     case AppletId::MiiEdit:
-        return std::make_shared<Mii>(system, mode, *frontend.mii);
+        return std::make_shared<MiiEdit>(system, mode, *frontend.mii_edit);
     case AppletId::Web:
     case AppletId::Shop:
     case AppletId::OfflineWeb:

src/core/hle/service/am/applets/applets.h

@@ -20,8 +20,8 @@ namespace Core::Frontend {
 class ControllerApplet;
 class ECommerceApplet;
 class ErrorApplet;
+class MiiEditApplet;
 class ParentalControlsApplet;
-class MiiApplet;
 class PhotoViewerApplet;
 class ProfileSelectApplet;
 class SoftwareKeyboardApplet;
@@ -179,8 +179,8 @@ protected:
 struct AppletFrontendSet {
     using ControllerApplet = std::unique_ptr<Core::Frontend::ControllerApplet>;
     using ErrorApplet = std::unique_ptr<Core::Frontend::ErrorApplet>;
+    using MiiEdit = std::unique_ptr<Core::Frontend::MiiEditApplet>;
     using ParentalControlsApplet = std::unique_ptr<Core::Frontend::ParentalControlsApplet>;
-    using MiiApplet = std::unique_ptr<Core::Frontend::MiiApplet>;
     using PhotoViewer = std::unique_ptr<Core::Frontend::PhotoViewerApplet>;
     using ProfileSelect = std::unique_ptr<Core::Frontend::ProfileSelectApplet>;
     using SoftwareKeyboard = std::unique_ptr<Core::Frontend::SoftwareKeyboardApplet>;
@@ -188,7 +188,7 @@ struct AppletFrontendSet {
 
     AppletFrontendSet();
     AppletFrontendSet(ControllerApplet controller_applet, ErrorApplet error_applet,
-                      ParentalControlsApplet parental_controls_applet, MiiApplet mii_applet,
+                      MiiEdit mii_edit_, ParentalControlsApplet parental_controls_applet,
                       PhotoViewer photo_viewer_, ProfileSelect profile_select_,
                       SoftwareKeyboard software_keyboard_, WebBrowser web_browser_);
     ~AppletFrontendSet();
@@ -201,8 +201,8 @@ struct AppletFrontendSet {
 
     ControllerApplet controller;
     ErrorApplet error;
+    MiiEdit mii_edit;
     ParentalControlsApplet parental_controls;
-    MiiApplet mii;
     PhotoViewer photo_viewer;
     ProfileSelect profile_select;
     SoftwareKeyboard software_keyboard;

src/core/hle/service/mii/mii_manager.cpp

@@ -1,4 +1,4 @@
-// Copyright 2020 yuzu emulator team
+// Copyright 2020 yuzu Emulator Project
 // Licensed under GPLv2 or any later version
 // Refer to the license.txt file included.
 
@@ -12,7 +12,6 @@
 #include "core/hle/service/acc/profile_manager.h"
 #include "core/hle/service/mii/mii_manager.h"
 #include "core/hle/service/mii/raw_data.h"
-#include "core/hle/service/mii/types.h"
 
 namespace Service::Mii {
 

src/core/hle/service/mii/mii_manager.h

@@ -1,315 +1,16 @@
-// Copyright 2020 yuzu emulator team
+// Copyright 2020 yuzu Emulator Project
 // Licensed under GPLv2 or any later version
 // Refer to the license.txt file included.
 
 #pragma once
 
-#include <array>
 #include <vector>
-#include "common/bit_field.h"
-#include "common/common_funcs.h"
-#include "common/uuid.h"
+
 #include "core/hle/result.h"
 #include "core/hle/service/mii/types.h"
 
 namespace Service::Mii {
 
-enum class Source : u32 {
-    Database = 0,
-    Default = 1,
-    Account = 2,
-    Friend = 3,
-};
-
-enum class SourceFlag : u32 {
-    None = 0,
-    Database = 1 << 0,
-    Default = 1 << 1,
-};
-DECLARE_ENUM_FLAG_OPERATORS(SourceFlag);
-
-struct MiiInfo {
-    Common::UUID uuid;
-    std::array<char16_t, 11> name;
-    u8 font_region;
-    u8 favorite_color;
-    u8 gender;
-    u8 height;
-    u8 build;
-    u8 type;
-    u8 region_move;
-    u8 faceline_type;
-    u8 faceline_color;
-    u8 faceline_wrinkle;
-    u8 faceline_make;
-    u8 hair_type;
-    u8 hair_color;
-    u8 hair_flip;
-    u8 eye_type;
-    u8 eye_color;
-    u8 eye_scale;
-    u8 eye_aspect;
-    u8 eye_rotate;
-    u8 eye_x;
-    u8 eye_y;
-    u8 eyebrow_type;
-    u8 eyebrow_color;
-    u8 eyebrow_scale;
-    u8 eyebrow_aspect;
-    u8 eyebrow_rotate;
-    u8 eyebrow_x;
-    u8 eyebrow_y;
-    u8 nose_type;
-    u8 nose_scale;
-    u8 nose_y;
-    u8 mouth_type;
-    u8 mouth_color;
-    u8 mouth_scale;
-    u8 mouth_aspect;
-    u8 mouth_y;
-    u8 beard_color;
-    u8 beard_type;
-    u8 mustache_type;
-    u8 mustache_scale;
-    u8 mustache_y;
-    u8 glasses_type;
-    u8 glasses_color;
-    u8 glasses_scale;
-    u8 glasses_y;
-    u8 mole_type;
-    u8 mole_scale;
-    u8 mole_x;
-    u8 mole_y;
-    u8 padding;
-
-    std::u16string Name() const;
-};
-static_assert(sizeof(MiiInfo) == 0x58, "MiiInfo has incorrect size.");
-static_assert(std::has_unique_object_representations_v<MiiInfo>,
-              "All bits of MiiInfo must contribute to its value.");
-
-#pragma pack(push, 4)
-
-struct MiiInfoElement {
-    MiiInfoElement(const MiiInfo& info_, Source source_) : info{info_}, source{source_} {}
-
-    MiiInfo info{};
-    Source source{};
-};
-static_assert(sizeof(MiiInfoElement) == 0x5c, "MiiInfoElement has incorrect size.");
-
-struct MiiStoreBitFields {
-    union {
-        u32 word_0{};
-
-        BitField<0, 8, u32> hair_type;
-        BitField<8, 7, u32> height;
-        BitField<15, 1, u32> mole_type;
-        BitField<16, 7, u32> build;
-        BitField<23, 1, HairFlip> hair_flip;
-        BitField<24, 7, u32> hair_color;
-        BitField<31, 1, u32> type;
-    };
-
-    union {
-        u32 word_1{};
-
-        BitField<0, 7, u32> eye_color;
-        BitField<7, 1, Gender> gender;
-        BitField<8, 7, u32> eyebrow_color;
-        BitField<16, 7, u32> mouth_color;
-        BitField<24, 7, u32> beard_color;
-    };
-
-    union {
-        u32 word_2{};
-
-        BitField<0, 7, u32> glasses_color;
-        BitField<8, 6, u32> eye_type;
-        BitField<14, 2, u32> region_move;
-        BitField<16, 6, u32> mouth_type;
-        BitField<22, 2, FontRegion> font_region;
-        BitField<24, 5, u32> eye_y;
-        BitField<29, 3, u32> glasses_scale;
-    };
-
-    union {
-        u32 word_3{};
-
-        BitField<0, 5, u32> eyebrow_type;
-        BitField<5, 3, MustacheType> mustache_type;
-        BitField<8, 5, u32> nose_type;
-        BitField<13, 3, BeardType> beard_type;
-        BitField<16, 5, u32> nose_y;
-        BitField<21, 3, u32> mouth_aspect;
-        BitField<24, 5, u32> mouth_y;
-        BitField<29, 3, u32> eyebrow_aspect;
-    };
-
-    union {
-        u32 word_4{};
-
-        BitField<0, 5, u32> mustache_y;
-        BitField<5, 3, u32> eye_rotate;
-        BitField<8, 5, u32> glasses_y;
-        BitField<13, 3, u32> eye_aspect;
-        BitField<16, 5, u32> mole_x;
-        BitField<21, 3, u32> eye_scale;
-        BitField<24, 5, u32> mole_y;
-    };
-
-    union {
-        u32 word_5{};
-
-        BitField<0, 5, u32> glasses_type;
-        BitField<8, 4, u32> favorite_color;
-        BitField<12, 4, u32> faceline_type;
-        BitField<16, 4, u32> faceline_color;
-        BitField<20, 4, u32> faceline_wrinkle;
-        BitField<24, 4, u32> faceline_makeup;
-        BitField<28, 4, u32> eye_x;
-    };
-
-    union {
-        u32 word_6{};
-
-        BitField<0, 4, u32> eyebrow_scale;
-        BitField<4, 4, u32> eyebrow_rotate;
-        BitField<8, 4, u32> eyebrow_x;
-        BitField<12, 4, u32> eyebrow_y;
-        BitField<16, 4, u32> nose_scale;
-        BitField<20, 4, u32> mouth_scale;
-        BitField<24, 4, u32> mustache_scale;
-        BitField<28, 4, u32> mole_scale;
-    };
-};
-static_assert(sizeof(MiiStoreBitFields) == 0x1c, "MiiStoreBitFields has incorrect size.");
-static_assert(std::is_trivially_copyable_v<MiiStoreBitFields>,
-              "MiiStoreBitFields is not trivially copyable.");
-
-struct MiiStoreData {
-    using Name = std::array<char16_t, 10>;
-
-    MiiStoreData();
-    MiiStoreData(const Name& name, const MiiStoreBitFields& bit_fields,
-                 const Common::UUID& user_id);
-
-    // This corresponds to the above structure MiiStoreBitFields. I did it like this because the
-    // BitField<> type makes this (and any thing that contains it) not trivially copyable, which is
-    // not suitable for our uses.
-    struct {
-        std::array<u8, 0x1C> data{};
-        static_assert(sizeof(MiiStoreBitFields) == sizeof(data), "data field has incorrect size.");
-
-        Name name{};
-        Common::UUID uuid{};
-    } data;
-
-    u16 data_crc{};
-    u16 device_crc{};
-};
-static_assert(sizeof(MiiStoreData) == 0x44, "MiiStoreData has incorrect size.");
-
-struct MiiStoreDataElement {
-    MiiStoreData data{};
-    Source source{};
-};
-static_assert(sizeof(MiiStoreDataElement) == 0x48, "MiiStoreDataElement has incorrect size.");
-
-struct MiiDatabase {
-    u32 magic{}; // 'NFDB'
-    std::array<MiiStoreData, 0x64> miis{};
-    INSERT_PADDING_BYTES(1);
-    u8 count{};
-    u16 crc{};
-};
-static_assert(sizeof(MiiDatabase) == 0x1A98, "MiiDatabase has incorrect size.");
-
-struct RandomMiiValues {
-    std::array<u8, 0xbc> values{};
-};
-static_assert(sizeof(RandomMiiValues) == 0xbc, "RandomMiiValues has incorrect size.");
-
-struct RandomMiiData4 {
-    Gender gender{};
-    Age age{};
-    Race race{};
-    u32 values_count{};
-    std::array<u32, 47> values{};
-};
-static_assert(sizeof(RandomMiiData4) == 0xcc, "RandomMiiData4 has incorrect size.");
-
-struct RandomMiiData3 {
-    u32 arg_1;
-    u32 arg_2;
-    u32 values_count;
-    std::array<u32, 47> values{};
-};
-static_assert(sizeof(RandomMiiData3) == 0xc8, "RandomMiiData3 has incorrect size.");
-
-struct RandomMiiData2 {
-    u32 arg_1;
-    u32 values_count;
-    std::array<u32, 47> values{};
-};
-static_assert(sizeof(RandomMiiData2) == 0xc4, "RandomMiiData2 has incorrect size.");
-
-struct DefaultMii {
-    u32 face_type{};
-    u32 face_color{};
-    u32 face_wrinkle{};
-    u32 face_makeup{};
-    u32 hair_type{};
-    u32 hair_color{};
-    u32 hair_flip{};
-    u32 eye_type{};
-    u32 eye_color{};
-    u32 eye_scale{};
-    u32 eye_aspect{};
-    u32 eye_rotate{};
-    u32 eye_x{};
-    u32 eye_y{};
-    u32 eyebrow_type{};
-    u32 eyebrow_color{};
-    u32 eyebrow_scale{};
-    u32 eyebrow_aspect{};
-    u32 eyebrow_rotate{};
-    u32 eyebrow_x{};
-    u32 eyebrow_y{};
-    u32 nose_type{};
-    u32 nose_scale{};
-    u32 nose_y{};
-    u32 mouth_type{};
-    u32 mouth_color{};
-    u32 mouth_scale{};
-    u32 mouth_aspect{};
-    u32 mouth_y{};
-    u32 mustache_type{};
-    u32 beard_type{};
-    u32 beard_color{};
-    u32 mustache_scale{};
-    u32 mustache_y{};
-    u32 glasses_type{};
-    u32 glasses_color{};
-    u32 glasses_scale{};
-    u32 glasses_y{};
-    u32 mole_type{};
-    u32 mole_scale{};
-    u32 mole_x{};
-    u32 mole_y{};
-    u32 height{};
-    u32 weight{};
-    Gender gender{};
-    u32 favorite_color{};
-    u32 region{};
-    FontRegion font_region{};
-    u32 type{};
-    INSERT_PADDING_WORDS(5);
-};
-static_assert(sizeof(DefaultMii) == 0xd8, "MiiStoreData has incorrect size.");
-
-#pragma pack(pop)
-
 // The Mii manager is responsible for loading and storing the Miis to the database in NAND along
 // with providing an easy interface for HLE emulation of the mii service.
 class MiiManager {

src/core/hle/service/mii/raw_data.h

@@ -6,7 +6,7 @@
 
 #include <array>
 
-#include "core/hle/service/mii/mii_manager.h"
+#include "core/hle/service/mii/types.h"
 
 namespace Service::Mii::RawData {
 

src/core/hle/service/mii/types.h

@@ -1,11 +1,16 @@
-// Copyright 2020 yuzu emulator team
+// Copyright 2020 yuzu Emulator Project
 // Licensed under GPLv2 or any later version
 // Refer to the license.txt file included.
 
 #pragma once
 
+#include <array>
+#include <type_traits>
+
+#include "common/bit_field.h"
 #include "common/common_funcs.h"
 #include "common/common_types.h"
+#include "common/uuid.h"
 
 namespace Service::Mii {
 
@@ -25,7 +30,11 @@ enum class BeardType : u32 {
     Beard5,
 };
 
-enum class BeardAndMustacheFlag : u32 { Beard = 1, Mustache, All = Beard | Mustache };
+enum class BeardAndMustacheFlag : u32 {
+    Beard = 1,
+    Mustache,
+    All = Beard | Mustache,
+};
 DECLARE_ENUM_FLAG_OPERATORS(BeardAndMustacheFlag);
 
 enum class FontRegion : u32 {
@@ -64,4 +73,298 @@ enum class Race : u32 {
     All,
 };
 
+enum class Source : u32 {
+    Database = 0,
+    Default = 1,
+    Account = 2,
+    Friend = 3,
+};
+
+enum class SourceFlag : u32 {
+    None = 0,
+    Database = 1 << 0,
+    Default = 1 << 1,
+};
+DECLARE_ENUM_FLAG_OPERATORS(SourceFlag);
+
+struct MiiInfo {
+    Common::UUID uuid;
+    std::array<char16_t, 11> name;
+    u8 font_region;
+    u8 favorite_color;
+    u8 gender;
+    u8 height;
+    u8 build;
+    u8 type;
+    u8 region_move;
+    u8 faceline_type;
+    u8 faceline_color;
+    u8 faceline_wrinkle;
+    u8 faceline_make;
+    u8 hair_type;
+    u8 hair_color;
+    u8 hair_flip;
+    u8 eye_type;
+    u8 eye_color;
+    u8 eye_scale;
+    u8 eye_aspect;
+    u8 eye_rotate;
+    u8 eye_x;
+    u8 eye_y;
+    u8 eyebrow_type;
+    u8 eyebrow_color;
+    u8 eyebrow_scale;
+    u8 eyebrow_aspect;
+    u8 eyebrow_rotate;
+    u8 eyebrow_x;
+    u8 eyebrow_y;
+    u8 nose_type;
+    u8 nose_scale;
+    u8 nose_y;
+    u8 mouth_type;
+    u8 mouth_color;
+    u8 mouth_scale;
+    u8 mouth_aspect;
+    u8 mouth_y;
+    u8 beard_color;
+    u8 beard_type;
+    u8 mustache_type;
+    u8 mustache_scale;
+    u8 mustache_y;
+    u8 glasses_type;
+    u8 glasses_color;
+    u8 glasses_scale;
+    u8 glasses_y;
+    u8 mole_type;
+    u8 mole_scale;
+    u8 mole_x;
+    u8 mole_y;
+    u8 padding;
+};
+static_assert(sizeof(MiiInfo) == 0x58, "MiiInfo has incorrect size.");
+static_assert(std::has_unique_object_representations_v<MiiInfo>,
+              "All bits of MiiInfo must contribute to its value.");
+
+#pragma pack(push, 4)
+
+struct MiiInfoElement {
+    MiiInfoElement(const MiiInfo& info_, Source source_) : info{info_}, source{source_} {}
+
+    MiiInfo info{};
+    Source source{};
+};
+static_assert(sizeof(MiiInfoElement) == 0x5c, "MiiInfoElement has incorrect size.");
+
+struct MiiStoreBitFields {
+    union {
+        u32 word_0{};
+
+        BitField<0, 8, u32> hair_type;
+        BitField<8, 7, u32> height;
+        BitField<15, 1, u32> mole_type;
+        BitField<16, 7, u32> build;
+        BitField<23, 1, HairFlip> hair_flip;
+        BitField<24, 7, u32> hair_color;
+        BitField<31, 1, u32> type;
+    };
+
+    union {
+        u32 word_1{};
+
+        BitField<0, 7, u32> eye_color;
+        BitField<7, 1, Gender> gender;
+        BitField<8, 7, u32> eyebrow_color;
+        BitField<16, 7, u32> mouth_color;
+        BitField<24, 7, u32> beard_color;
+    };
+
+    union {
+        u32 word_2{};
+
+        BitField<0, 7, u32> glasses_color;
+        BitField<8, 6, u32> eye_type;
+        BitField<14, 2, u32> region_move;
+        BitField<16, 6, u32> mouth_type;
+        BitField<22, 2, FontRegion> font_region;
+        BitField<24, 5, u32> eye_y;
+        BitField<29, 3, u32> glasses_scale;
+    };
+
+    union {
+        u32 word_3{};
+
+        BitField<0, 5, u32> eyebrow_type;
+        BitField<5, 3, MustacheType> mustache_type;
+        BitField<8, 5, u32> nose_type;
+        BitField<13, 3, BeardType> beard_type;
+        BitField<16, 5, u32> nose_y;
+        BitField<21, 3, u32> mouth_aspect;
+        BitField<24, 5, u32> mouth_y;
+        BitField<29, 3, u32> eyebrow_aspect;
+    };
+
+    union {
+        u32 word_4{};
+
+        BitField<0, 5, u32> mustache_y;
+        BitField<5, 3, u32> eye_rotate;
+        BitField<8, 5, u32> glasses_y;
+        BitField<13, 3, u32> eye_aspect;
+        BitField<16, 5, u32> mole_x;
+        BitField<21, 3, u32> eye_scale;
+        BitField<24, 5, u32> mole_y;
+    };
+
+    union {
+        u32 word_5{};
+
+        BitField<0, 5, u32> glasses_type;
+        BitField<8, 4, u32> favorite_color;
+        BitField<12, 4, u32> faceline_type;
+        BitField<16, 4, u32> faceline_color;
+        BitField<20, 4, u32> faceline_wrinkle;
+        BitField<24, 4, u32> faceline_makeup;
+        BitField<28, 4, u32> eye_x;
+    };
+
+    union {
+        u32 word_6{};
+
+        BitField<0, 4, u32> eyebrow_scale;
+        BitField<4, 4, u32> eyebrow_rotate;
+        BitField<8, 4, u32> eyebrow_x;
+        BitField<12, 4, u32> eyebrow_y;
+        BitField<16, 4, u32> nose_scale;
+        BitField<20, 4, u32> mouth_scale;
+        BitField<24, 4, u32> mustache_scale;
+        BitField<28, 4, u32> mole_scale;
+    };
+};
+static_assert(sizeof(MiiStoreBitFields) == 0x1c, "MiiStoreBitFields has incorrect size.");
+static_assert(std::is_trivially_copyable_v<MiiStoreBitFields>,
+              "MiiStoreBitFields is not trivially copyable.");
+
+struct MiiStoreData {
+    using Name = std::array<char16_t, 10>;
+
+    MiiStoreData();
+    MiiStoreData(const Name& name, const MiiStoreBitFields& bit_fields,
+                 const Common::UUID& user_id);
+
+    // This corresponds to the above structure MiiStoreBitFields. I did it like this because the
+    // BitField<> type makes this (and any thing that contains it) not trivially copyable, which is
+    // not suitable for our uses.
+    struct {
+        std::array<u8, 0x1C> data{};
+        static_assert(sizeof(MiiStoreBitFields) == sizeof(data), "data field has incorrect size.");
+
+        Name name{};
+        Common::UUID uuid{};
+    } data;
+
+    u16 data_crc{};
+    u16 device_crc{};
+};
+static_assert(sizeof(MiiStoreData) == 0x44, "MiiStoreData has incorrect size.");
+
+struct MiiStoreDataElement {
+    MiiStoreData data{};
+    Source source{};
+};
+static_assert(sizeof(MiiStoreDataElement) == 0x48, "MiiStoreDataElement has incorrect size.");
+
+struct MiiDatabase {
+    u32 magic{}; // 'NFDB'
+    std::array<MiiStoreData, 0x64> miis{};
+    INSERT_PADDING_BYTES(1);
+    u8 count{};
+    u16 crc{};
+};
+static_assert(sizeof(MiiDatabase) == 0x1A98, "MiiDatabase has incorrect size.");
+
+struct RandomMiiValues {
+    std::array<u8, 0xbc> values{};
+};
+static_assert(sizeof(RandomMiiValues) == 0xbc, "RandomMiiValues has incorrect size.");
+
+struct RandomMiiData4 {
+    Gender gender{};
+    Age age{};
+    Race race{};
+    u32 values_count{};
+    std::array<u32, 47> values{};
+};
+static_assert(sizeof(RandomMiiData4) == 0xcc, "RandomMiiData4 has incorrect size.");
+
+struct RandomMiiData3 {
+    u32 arg_1;
+    u32 arg_2;
+    u32 values_count;
+    std::array<u32, 47> values{};
+};
+static_assert(sizeof(RandomMiiData3) == 0xc8, "RandomMiiData3 has incorrect size.");
+
+struct RandomMiiData2 {
+    u32 arg_1;
+    u32 values_count;
+    std::array<u32, 47> values{};
+};
+static_assert(sizeof(RandomMiiData2) == 0xc4, "RandomMiiData2 has incorrect size.");
+
+struct DefaultMii {
+    u32 face_type{};
+    u32 face_color{};
+    u32 face_wrinkle{};
+    u32 face_makeup{};
+    u32 hair_type{};
+    u32 hair_color{};
+    u32 hair_flip{};
+    u32 eye_type{};
+    u32 eye_color{};
+    u32 eye_scale{};
+    u32 eye_aspect{};
+    u32 eye_rotate{};
+    u32 eye_x{};
+    u32 eye_y{};
+    u32 eyebrow_type{};
+    u32 eyebrow_color{};
+    u32 eyebrow_scale{};
+    u32 eyebrow_aspect{};
+    u32 eyebrow_rotate{};
+    u32 eyebrow_x{};
+    u32 eyebrow_y{};
+    u32 nose_type{};
+    u32 nose_scale{};
+    u32 nose_y{};
+    u32 mouth_type{};
+    u32 mouth_color{};
+    u32 mouth_scale{};
+    u32 mouth_aspect{};
+    u32 mouth_y{};
+    u32 mustache_type{};
+    u32 beard_type{};
+    u32 beard_color{};
+    u32 mustache_scale{};
+    u32 mustache_y{};
+    u32 glasses_type{};
+    u32 glasses_color{};
+    u32 glasses_scale{};
+    u32 glasses_y{};
+    u32 mole_type{};
+    u32 mole_scale{};
+    u32 mole_x{};
+    u32 mole_y{};
+    u32 height{};
+    u32 weight{};
+    Gender gender{};
+    u32 favorite_color{};
+    u32 region{};
+    FontRegion font_region{};
+    u32 type{};
+    INSERT_PADDING_WORDS(5);
+};
+static_assert(sizeof(DefaultMii) == 0xd8, "MiiStoreData has incorrect size.");
+
+#pragma pack(pop)
+
 } // namespace Service::Mii

src/core/hle/service/nfp/nfp.cpp

@@ -12,6 +12,7 @@
 #include "core/hid/hid_types.h"
 #include "core/hle/ipc_helpers.h"
 #include "core/hle/kernel/k_event.h"
+#include "core/hle/service/mii/mii_manager.h"
 #include "core/hle/service/nfp/nfp.h"
 #include "core/hle/service/nfp/nfp_user.h"
 

src/core/hle/service/nfp/nfp.h

@@ -9,7 +9,7 @@
 
 #include "common/common_funcs.h"
 #include "core/hle/service/kernel_helpers.h"
-#include "core/hle/service/mii/mii_manager.h"
+#include "core/hle/service/mii/types.h"
 #include "core/hle/service/service.h"
 
 namespace Kernel {

src/core/hle/service/nvdrv/devices/nvdisp_disp0.cpp

@@ -38,18 +38,16 @@ NvResult nvdisp_disp0::Ioctl3(DeviceFD fd, Ioctl command, const std::vector<u8>&
 void nvdisp_disp0::OnOpen(DeviceFD fd) {}
 void nvdisp_disp0::OnClose(DeviceFD fd) {}
 
-void nvdisp_disp0::flip(u32 buffer_handle, u32 offset, u32 format, u32 width, u32 height,
-                        u32 stride, NVFlinger::BufferQueue::BufferTransformFlags transform,
+void nvdisp_disp0::flip(u32 buffer_handle, u32 offset, android::PixelFormat format, u32 width,
+                        u32 height, u32 stride, android::BufferTransformFlags transform,
                         const Common::Rectangle<int>& crop_rect) {
     const VAddr addr = nvmap_dev->GetObjectAddress(buffer_handle);
     LOG_TRACE(Service,
               "Drawing from address {:X} offset {:08X} Width {} Height {} Stride {} Format {}",
               addr, offset, width, height, stride, format);
 
-    const auto pixel_format = static_cast<Tegra::FramebufferConfig::PixelFormat>(format);
-    const auto transform_flags = static_cast<Tegra::FramebufferConfig::TransformFlags>(transform);
-    const Tegra::FramebufferConfig framebuffer{addr,   offset,       width,           height,
-                                               stride, pixel_format, transform_flags, crop_rect};
+    const Tegra::FramebufferConfig framebuffer{addr,   offset, width,     height,
+                                               stride, format, transform, crop_rect};
 
     system.GetPerfStats().EndSystemFrame();
     system.GPU().SwapBuffers(&framebuffer);

src/core/hle/service/nvdrv/devices/nvdisp_disp0.h

@@ -9,7 +9,8 @@
 #include "common/common_types.h"
 #include "common/math_util.h"
 #include "core/hle/service/nvdrv/devices/nvdevice.h"
-#include "core/hle/service/nvflinger/buffer_queue.h"
+#include "core/hle/service/nvflinger/buffer_transform_flags.h"
+#include "core/hle/service/nvflinger/pixel_format.h"
 
 namespace Service::Nvidia::Devices {
 
@@ -31,8 +32,8 @@ public:
     void OnClose(DeviceFD fd) override;
 
     /// Performs a screen flip, drawing the buffer pointed to by the handle.
-    void flip(u32 buffer_handle, u32 offset, u32 format, u32 width, u32 height, u32 stride,
-              NVFlinger::BufferQueue::BufferTransformFlags transform,
+    void flip(u32 buffer_handle, u32 offset, android::PixelFormat format, u32 width, u32 height,
+              u32 stride, android::BufferTransformFlags transform,
               const Common::Rectangle<int>& crop_rect);
 
 private:

src/core/hle/service/nvdrv/devices/nvhost_ctrl.cpp

@@ -134,7 +134,7 @@ NvResult nvhost_ctrl::IocCtrlEventWait(const std::vector<u8>& input, std::vector
     }
 
     EventState status = events_interface.status[event_id];
-    const bool bad_parameter = status != EventState::Free && status != EventState::Registered;
+    const bool bad_parameter = status == EventState::Busy;
     if (bad_parameter) {
         std::memcpy(output.data(), &params, sizeof(params));
         return NvResult::BadParameter;

src/core/hle/service/nvdrv/devices/nvhost_gpu.cpp

@@ -187,7 +187,7 @@ NvResult nvhost_gpu::AllocateObjectContext(const std::vector<u8>& input, std::ve
     return NvResult::Success;
 }
 
-static std::vector<Tegra::CommandHeader> BuildWaitCommandList(Fence fence) {
+static std::vector<Tegra::CommandHeader> BuildWaitCommandList(NvFence fence) {
     return {
         Tegra::BuildCommandHeader(Tegra::BufferMethods::FenceValue, 1,
                                   Tegra::SubmissionMode::Increasing),
@@ -198,7 +198,8 @@ static std::vector<Tegra::CommandHeader> BuildWaitCommandList(Fence fence) {
     };
 }
 
-static std::vector<Tegra::CommandHeader> BuildIncrementCommandList(Fence fence, u32 add_increment) {
+static std::vector<Tegra::CommandHeader> BuildIncrementCommandList(NvFence fence,
+                                                                   u32 add_increment) {
     std::vector<Tegra::CommandHeader> result{
         Tegra::BuildCommandHeader(Tegra::BufferMethods::FenceValue, 1,
                                   Tegra::SubmissionMode::Increasing),
@@ -213,7 +214,7 @@ static std::vector<Tegra::CommandHeader> BuildIncrementCommandList(Fence fence,
     return result;
 }
 
-static std::vector<Tegra::CommandHeader> BuildIncrementWithWfiCommandList(Fence fence,
+static std::vector<Tegra::CommandHeader> BuildIncrementWithWfiCommandList(NvFence fence,
                                                                           u32 add_increment) {
     std::vector<Tegra::CommandHeader> result{
         Tegra::BuildCommandHeader(Tegra::BufferMethods::WaitForInterrupt, 1,

src/core/hle/service/nvdrv/devices/nvhost_gpu.h

@@ -109,7 +109,7 @@ private:
     static_assert(sizeof(IoctlGetErrorNotification) == 16,
                   "IoctlGetErrorNotification is incorrect size");
 
-    static_assert(sizeof(Fence) == 8, "Fence is incorrect size");
+    static_assert(sizeof(NvFence) == 8, "Fence is incorrect size");
 
     struct IoctlAllocGpfifoEx {
         u32_le num_entries{};
@@ -127,7 +127,7 @@ private:
         u32_le num_entries{}; // in
         u32_le flags{};       // in
         u32_le unk0{};        // in (1 works)
-        Fence fence_out{};    // out
+        NvFence fence_out{};  // out
         u32_le unk1{};        // in
         u32_le unk2{};        // in
         u32_le unk3{};        // in
@@ -153,13 +153,13 @@ private:
             BitField<4, 1, u32_le> suppress_wfi;  // suppress wait for interrupt
             BitField<8, 1, u32_le> increment;     // increment the returned fence
         } flags;
-        Fence fence_out{}; // returned new fence object for others to wait on
+        NvFence fence_out{}; // returned new fence object for others to wait on
 
         u32 AddIncrementValue() const {
             return flags.add_increment.Value() << 1;
         }
     };
-    static_assert(sizeof(IoctlSubmitGpfifo) == 16 + sizeof(Fence),
+    static_assert(sizeof(IoctlSubmitGpfifo) == 16 + sizeof(NvFence),
                   "IoctlSubmitGpfifo is incorrect size");
 
     struct IoctlGetWaitbase {
@@ -194,7 +194,7 @@ private:
 
     std::shared_ptr<nvmap> nvmap_dev;
     SyncpointManager& syncpoint_manager;
-    Fence channel_fence;
+    NvFence channel_fence;
 };
 
 } // namespace Service::Nvidia::Devices

src/core/hle/service/nvdrv/nvdata.h

@@ -16,17 +16,11 @@ using DeviceFD = s32;
 
 constexpr DeviceFD INVALID_NVDRV_FD = -1;
 
-struct Fence {
+struct NvFence {
     s32 id;
     u32 value;
 };
-
-static_assert(sizeof(Fence) == 8, "Fence has wrong size");
-
-struct MultiFence {
-    u32 num_fences;
-    std::array<Fence, 4> fences;
-};
+static_assert(sizeof(NvFence) == 8, "NvFence has wrong size");
 
 enum class NvResult : u32 {
     Success = 0x0,

src/core/hle/service/nvdrv/nvdrv.h

@@ -12,6 +12,7 @@
 #include "core/hle/service/kernel_helpers.h"
 #include "core/hle/service/nvdrv/nvdata.h"
 #include "core/hle/service/nvdrv/syncpoint_manager.h"
+#include "core/hle/service/nvflinger/ui/fence.h"
 #include "core/hle/service/service.h"
 
 namespace Core {
@@ -37,7 +38,7 @@ class nvdevice;
 /// Represents an Nvidia event
 struct NvEvent {
     Kernel::KEvent* event{};
-    Fence fence{};
+    NvFence fence{};
 };
 
 struct EventInterface {

src/core/hle/service/nvflinger/binder.h

@@ -0,0 +1,42 @@
+// SPDX-License-Identifier: GPL-3.0-or-later
+// Copyright 2021 yuzu Emulator Project
+// Copyright 2014 The Android Open Source Project
+// Parts of this implementation were base on:
+// https://cs.android.com/android/platform/superproject/+/android-5.1.1_r38:frameworks/native/include/binder/IBinder.h
+
+#pragma once
+
+#include "common/common_types.h"
+
+namespace Kernel {
+class HLERequestContext;
+class KReadableEvent;
+} // namespace Kernel
+
+namespace Service::android {
+
+enum class TransactionId {
+    RequestBuffer = 1,
+    SetBufferCount = 2,
+    DequeueBuffer = 3,
+    DetachBuffer = 4,
+    DetachNextBuffer = 5,
+    AttachBuffer = 6,
+    QueueBuffer = 7,
+    CancelBuffer = 8,
+    Query = 9,
+    Connect = 10,
+    Disconnect = 11,
+    AllocateBuffers = 13,
+    SetPreallocatedBuffer = 14,
+    GetBufferHistory = 17,
+};
+
+class IBinder {
+public:
+    virtual void Transact(Kernel::HLERequestContext& ctx, android::TransactionId code,
+                          u32 flags) = 0;
+    virtual Kernel::KReadableEvent& GetNativeHandle() = 0;
+};
+
+} // namespace Service::android

src/core/hle/service/nvflinger/buffer_item.h

@@ -0,0 +1,46 @@
+// SPDX-License-Identifier: GPL-3.0-or-later
+// Copyright 2021 yuzu Emulator Project
+// Copyright 2014 The Android Open Source Project
+// Parts of this implementation were base on:
+// https://cs.android.com/android/platform/superproject/+/android-5.1.1_r38:frameworks/native/include/gui/BufferItem.h
+
+#pragma once
+
+#include <memory>
+
+#include "common/common_types.h"
+#include "common/math_util.h"
+#include "core/hle/service/nvflinger/ui/fence.h"
+#include "core/hle/service/nvflinger/window.h"
+
+namespace Service::android {
+
+class GraphicBuffer;
+
+class BufferItem final {
+public:
+    constexpr BufferItem() = default;
+
+    std::shared_ptr<GraphicBuffer> graphic_buffer;
+    Fence fence;
+    Common::Rectangle<s32> crop;
+    NativeWindowTransform transform{};
+    u32 scaling_mode{};
+    s64 timestamp{};
+    bool is_auto_timestamp{};
+    u64 frame_number{};
+
+    // The default value for buf, used to indicate this doesn't correspond to a slot.
+    static constexpr s32 INVALID_BUFFER_SLOT = -1;
+    union {
+        s32 slot{INVALID_BUFFER_SLOT};
+        s32 buf;
+    };
+
+    bool is_droppable{};
+    bool acquire_called{};
+    bool transform_to_display_inverse{};
+    s32 swap_interval{};
+};
+
+} // namespace Service::android

src/core/hle/service/nvflinger/buffer_item_consumer.cpp

@@ -0,0 +1,59 @@
+// SPDX-License-Identifier: GPL-3.0-or-later
+// Copyright 2021 yuzu Emulator Project
+// Copyright 2012 The Android Open Source Project
+// Parts of this implementation were base on:
+// https://cs.android.com/android/platform/superproject/+/android-5.1.1_r38:frameworks/native/libs/gui/BufferItemConsumer.cpp
+
+#include "common/assert.h"
+#include "common/logging/log.h"
+#include "core/hle/service/nvflinger/buffer_item.h"
+#include "core/hle/service/nvflinger/buffer_item_consumer.h"
+#include "core/hle/service/nvflinger/buffer_queue_consumer.h"
+
+namespace Service::android {
+
+BufferItemConsumer::BufferItemConsumer(std::unique_ptr<BufferQueueConsumer> consumer_)
+    : ConsumerBase{std::move(consumer_)} {}
+
+Status BufferItemConsumer::AcquireBuffer(BufferItem* item, std::chrono::nanoseconds present_when,
+                                         bool wait_for_fence) {
+    if (!item) {
+        return Status::BadValue;
+    }
+
+    std::scoped_lock lock(mutex);
+
+    if (const auto status = AcquireBufferLocked(item, present_when); status != Status::NoError) {
+        if (status != Status::NoBufferAvailable) {
+            LOG_ERROR(Service_NVFlinger, "Failed to acquire buffer: {}", status);
+        }
+        return status;
+    }
+
+    if (wait_for_fence) {
+        UNIMPLEMENTED();
+    }
+
+    item->graphic_buffer = slots[item->slot].graphic_buffer;
+
+    return Status::NoError;
+}
+
+Status BufferItemConsumer::ReleaseBuffer(const BufferItem& item, Fence& release_fence) {
+    std::scoped_lock lock(mutex);
+
+    if (const auto status = AddReleaseFenceLocked(item.buf, item.graphic_buffer, release_fence);
+        status != Status::NoError) {
+        LOG_ERROR(Service_NVFlinger, "Failed to add fence: {}", status);
+    }
+
+    if (const auto status = ReleaseBufferLocked(item.buf, item.graphic_buffer);
+        status != Status::NoError) {
+        LOG_WARNING(Service_NVFlinger, "Failed to release buffer: {}", status);
+        return status;
+    }
+
+    return Status::NoError;
+}
+
+} // namespace Service::android

src/core/hle/service/nvflinger/buffer_item_consumer.h

@@ -0,0 +1,28 @@
+// SPDX-License-Identifier: GPL-3.0-or-later
+// Copyright 2021 yuzu Emulator Project
+// Copyright 2012 The Android Open Source Project
+// Parts of this implementation were base on:
+// https://cs.android.com/android/platform/superproject/+/android-5.1.1_r38:frameworks/native/include/gui/BufferItemConsumer.h
+
+#pragma once
+
+#include <chrono>
+#include <memory>
+
+#include "common/common_types.h"
+#include "core/hle/service/nvflinger/consumer_base.h"
+#include "core/hle/service/nvflinger/status.h"
+
+namespace Service::android {
+
+class BufferItem;
+
+class BufferItemConsumer final : public ConsumerBase {
+public:
+    explicit BufferItemConsumer(std::unique_ptr<BufferQueueConsumer> consumer);
+    Status AcquireBuffer(BufferItem* item, std::chrono::nanoseconds present_when,
+                         bool wait_for_fence = true);
+    Status ReleaseBuffer(const BufferItem& item, Fence& release_fence);
+};
+
+} // namespace Service::android

src/core/hle/service/nvflinger/buffer_queue.cpp

@@ -1,206 +0,0 @@
-// Copyright 2018 yuzu emulator team
-// Licensed under GPLv2 or any later version
-// Refer to the license.txt file included.
-
-#include <algorithm>
-
-#include "common/assert.h"
-#include "common/logging/log.h"
-#include "core/core.h"
-#include "core/hle/kernel/k_writable_event.h"
-#include "core/hle/kernel/kernel.h"
-#include "core/hle/service/kernel_helpers.h"
-#include "core/hle/service/nvflinger/buffer_queue.h"
-
-namespace Service::NVFlinger {
-
-BufferQueue::BufferQueue(Kernel::KernelCore& kernel, u32 id_, u64 layer_id_,
-                         KernelHelpers::ServiceContext& service_context_)
-    : id(id_), layer_id(layer_id_), service_context{service_context_} {
-    buffer_wait_event = service_context.CreateEvent("BufferQueue:WaitEvent");
-}
-
-BufferQueue::~BufferQueue() {
-    service_context.CloseEvent(buffer_wait_event);
-}
-
-void BufferQueue::SetPreallocatedBuffer(u32 slot, const IGBPBuffer& igbp_buffer) {
-    ASSERT(slot < buffer_slots);
-    LOG_WARNING(Service, "Adding graphics buffer {}", slot);
-
-    {
-        std::unique_lock lock{free_buffers_mutex};
-        free_buffers.push_back(slot);
-    }
-    free_buffers_condition.notify_one();
-
-    buffers[slot] = {
-        .slot = slot,
-        .status = Buffer::Status::Free,
-        .igbp_buffer = igbp_buffer,
-        .transform = {},
-        .crop_rect = {},
-        .swap_interval = 0,
-        .multi_fence = {},
-    };
-
-    buffer_wait_event->GetWritableEvent().Signal();
-}
-
-std::optional<std::pair<u32, Service::Nvidia::MultiFence*>> BufferQueue::DequeueBuffer(u32 width,
-                                                                                       u32 height) {
-    // Wait for first request before trying to dequeue
-    {
-        std::unique_lock lock{free_buffers_mutex};
-        free_buffers_condition.wait(lock, [this] { return !free_buffers.empty() || !is_connect; });
-    }
-
-    if (!is_connect) {
-        // Buffer was disconnected while the thread was blocked, this is most likely due to
-        // emulation being stopped
-        return std::nullopt;
-    }
-
-    std::unique_lock lock{free_buffers_mutex};
-
-    auto f_itr = free_buffers.begin();
-    auto slot = buffers.size();
-
-    while (f_itr != free_buffers.end()) {
-        const Buffer& buffer = buffers[*f_itr];
-        if (buffer.status == Buffer::Status::Free && buffer.igbp_buffer.width == width &&
-            buffer.igbp_buffer.height == height) {
-            slot = *f_itr;
-            free_buffers.erase(f_itr);
-            break;
-        }
-        ++f_itr;
-    }
-    if (slot == buffers.size()) {
-        return std::nullopt;
-    }
-    buffers[slot].status = Buffer::Status::Dequeued;
-    return {{buffers[slot].slot, &buffers[slot].multi_fence}};
-}
-
-const IGBPBuffer& BufferQueue::RequestBuffer(u32 slot) const {
-    ASSERT(slot < buffers.size());
-    ASSERT(buffers[slot].status == Buffer::Status::Dequeued);
-    ASSERT(buffers[slot].slot == slot);
-
-    return buffers[slot].igbp_buffer;
-}
-
-void BufferQueue::QueueBuffer(u32 slot, BufferTransformFlags transform,
-                              const Common::Rectangle<int>& crop_rect, u32 swap_interval,
-                              Service::Nvidia::MultiFence& multi_fence) {
-    ASSERT(slot < buffers.size());
-    ASSERT(buffers[slot].status == Buffer::Status::Dequeued);
-    ASSERT(buffers[slot].slot == slot);
-
-    buffers[slot].status = Buffer::Status::Queued;
-    buffers[slot].transform = transform;
-    buffers[slot].crop_rect = crop_rect;
-    buffers[slot].swap_interval = swap_interval;
-    buffers[slot].multi_fence = multi_fence;
-    std::unique_lock lock{queue_sequence_mutex};
-    queue_sequence.push_back(slot);
-}
-
-void BufferQueue::CancelBuffer(u32 slot, const Service::Nvidia::MultiFence& multi_fence) {
-    ASSERT(slot < buffers.size());
-    ASSERT(buffers[slot].status != Buffer::Status::Free);
-    ASSERT(buffers[slot].slot == slot);
-
-    buffers[slot].status = Buffer::Status::Free;
-    buffers[slot].multi_fence = multi_fence;
-    buffers[slot].swap_interval = 0;
-
-    {
-        std::unique_lock lock{free_buffers_mutex};
-        free_buffers.push_back(slot);
-    }
-    free_buffers_condition.notify_one();
-
-    buffer_wait_event->GetWritableEvent().Signal();
-}
-
-std::optional<std::reference_wrapper<const BufferQueue::Buffer>> BufferQueue::AcquireBuffer() {
-    std::unique_lock lock{queue_sequence_mutex};
-    std::size_t buffer_slot = buffers.size();
-    // Iterate to find a queued buffer matching the requested slot.
-    while (buffer_slot == buffers.size() && !queue_sequence.empty()) {
-        const auto slot = static_cast<std::size_t>(queue_sequence.front());
-        ASSERT(slot < buffers.size());
-        if (buffers[slot].status == Buffer::Status::Queued) {
-            ASSERT(buffers[slot].slot == slot);
-            buffer_slot = slot;
-        }
-        queue_sequence.pop_front();
-    }
-    if (buffer_slot == buffers.size()) {
-        return std::nullopt;
-    }
-    buffers[buffer_slot].status = Buffer::Status::Acquired;
-    return {{buffers[buffer_slot]}};
-}
-
-void BufferQueue::ReleaseBuffer(u32 slot) {
-    ASSERT(slot < buffers.size());
-    ASSERT(buffers[slot].status == Buffer::Status::Acquired);
-    ASSERT(buffers[slot].slot == slot);
-
-    buffers[slot].status = Buffer::Status::Free;
-    {
-        std::unique_lock lock{free_buffers_mutex};
-        free_buffers.push_back(slot);
-    }
-    free_buffers_condition.notify_one();
-
-    buffer_wait_event->GetWritableEvent().Signal();
-}
-
-void BufferQueue::Connect() {
-    std::unique_lock lock{queue_sequence_mutex};
-    queue_sequence.clear();
-    is_connect = true;
-}
-
-void BufferQueue::Disconnect() {
-    buffers.fill({});
-    {
-        std::unique_lock lock{queue_sequence_mutex};
-        queue_sequence.clear();
-    }
-    buffer_wait_event->GetWritableEvent().Signal();
-    is_connect = false;
-    free_buffers_condition.notify_one();
-}
-
-u32 BufferQueue::Query(QueryType type) {
-    LOG_WARNING(Service, "(STUBBED) called type={}", type);
-
-    switch (type) {
-    case QueryType::NativeWindowFormat:
-        return static_cast<u32>(PixelFormat::RGBA8888);
-    case QueryType::NativeWindowWidth:
-    case QueryType::NativeWindowHeight:
-        break;
-    case QueryType::NativeWindowMinUndequeuedBuffers:
-        return 0;
-    case QueryType::NativeWindowConsumerUsageBits:
-        return 0;
-    }
-    UNIMPLEMENTED_MSG("Unimplemented query type={}", type);
-    return 0;
-}
-
-Kernel::KWritableEvent& BufferQueue::GetWritableBufferWaitEvent() {
-    return buffer_wait_event->GetWritableEvent();
-}
-
-Kernel::KReadableEvent& BufferQueue::GetBufferWaitEvent() {
-    return buffer_wait_event->GetReadableEvent();
-}
-
-} // namespace Service::NVFlinger

src/core/hle/service/nvflinger/buffer_queue.h

@@ -1,154 +0,0 @@
-// Copyright 2018 yuzu emulator team
-// Licensed under GPLv2 or any later version
-// Refer to the license.txt file included.
-
-#pragma once
-
-#include <condition_variable>
-#include <list>
-#include <mutex>
-#include <optional>
-
-#include "common/common_funcs.h"
-#include "common/math_util.h"
-#include "common/swap.h"
-#include "core/hle/kernel/k_event.h"
-#include "core/hle/kernel/k_readable_event.h"
-#include "core/hle/service/nvdrv/nvdata.h"
-
-namespace Kernel {
-class KernelCore;
-class KEvent;
-class KReadableEvent;
-class KWritableEvent;
-} // namespace Kernel
-
-namespace Service::KernelHelpers {
-class ServiceContext;
-} // namespace Service::KernelHelpers
-
-namespace Service::NVFlinger {
-
-constexpr u32 buffer_slots = 0x40;
-struct IGBPBuffer {
-    u32_le magic;
-    u32_le width;
-    u32_le height;
-    u32_le stride;
-    u32_le format;
-    u32_le usage;
-    INSERT_PADDING_WORDS(1);
-    u32_le index;
-    INSERT_PADDING_WORDS(3);
-    u32_le gpu_buffer_id;
-    INSERT_PADDING_WORDS(6);
-    u32_le external_format;
-    INSERT_PADDING_WORDS(10);
-    u32_le nvmap_handle;
-    u32_le offset;
-    INSERT_PADDING_WORDS(60);
-};
-
-static_assert(sizeof(IGBPBuffer) == 0x16C, "IGBPBuffer has wrong size");
-
-class BufferQueue final {
-public:
-    enum class QueryType {
-        NativeWindowWidth = 0,
-        NativeWindowHeight = 1,
-        NativeWindowFormat = 2,
-        /// The minimum number of buffers that must remain un-dequeued after a buffer has been
-        /// queued
-        NativeWindowMinUndequeuedBuffers = 3,
-        /// The consumer gralloc usage bits currently set by the consumer
-        NativeWindowConsumerUsageBits = 10,
-    };
-
-    explicit BufferQueue(Kernel::KernelCore& kernel, u32 id_, u64 layer_id_,
-                         KernelHelpers::ServiceContext& service_context_);
-    ~BufferQueue();
-
-    enum class BufferTransformFlags : u32 {
-        /// No transform flags are set
-        Unset = 0x00,
-        /// Flip source image horizontally (around the vertical axis)
-        FlipH = 0x01,
-        /// Flip source image vertically (around the horizontal axis)
-        FlipV = 0x02,
-        /// Rotate source image 90 degrees clockwise
-        Rotate90 = 0x04,
-        /// Rotate source image 180 degrees
-        Rotate180 = 0x03,
-        /// Rotate source image 270 degrees clockwise
-        Rotate270 = 0x07,
-    };
-
-    enum class PixelFormat : u32 {
-        RGBA8888 = 1,
-        RGBX8888 = 2,
-        RGB888 = 3,
-        RGB565 = 4,
-        BGRA8888 = 5,
-        RGBA5551 = 6,
-        RRGBA4444 = 7,
-    };
-
-    struct Buffer {
-        enum class Status { Free = 0, Queued = 1, Dequeued = 2, Acquired = 3 };
-
-        u32 slot;
-        Status status = Status::Free;
-        IGBPBuffer igbp_buffer;
-        BufferTransformFlags transform;
-        Common::Rectangle<int> crop_rect;
-        u32 swap_interval;
-        Service::Nvidia::MultiFence multi_fence;
-    };
-
-    void SetPreallocatedBuffer(u32 slot, const IGBPBuffer& igbp_buffer);
-    std::optional<std::pair<u32, Service::Nvidia::MultiFence*>> DequeueBuffer(u32 width,
-                                                                              u32 height);
-    const IGBPBuffer& RequestBuffer(u32 slot) const;
-    void QueueBuffer(u32 slot, BufferTransformFlags transform,
-                     const Common::Rectangle<int>& crop_rect, u32 swap_interval,
-                     Service::Nvidia::MultiFence& multi_fence);
-    void CancelBuffer(u32 slot, const Service::Nvidia::MultiFence& multi_fence);
-    std::optional<std::reference_wrapper<const Buffer>> AcquireBuffer();
-    void ReleaseBuffer(u32 slot);
-    void Connect();
-    void Disconnect();
-    u32 Query(QueryType type);
-
-    u32 GetId() const {
-        return id;
-    }
-
-    bool IsConnected() const {
-        return is_connect;
-    }
-
-    Kernel::KWritableEvent& GetWritableBufferWaitEvent();
-
-    Kernel::KReadableEvent& GetBufferWaitEvent();
-
-private:
-    BufferQueue(const BufferQueue&) = delete;
-
-    u32 id{};
-    u64 layer_id{};
-    std::atomic_bool is_connect{};
-
-    std::list<u32> free_buffers;
-    std::array<Buffer, buffer_slots> buffers;
-    std::list<u32> queue_sequence;
-    Kernel::KEvent* buffer_wait_event{};
-
-    std::mutex free_buffers_mutex;
-    std::condition_variable free_buffers_condition;
-
-    std::mutex queue_sequence_mutex;
-
-    KernelHelpers::ServiceContext& service_context;
-};
-
-} // namespace Service::NVFlinger

src/core/hle/service/nvflinger/buffer_queue_consumer.cpp

@@ -0,0 +1,203 @@
+// SPDX-License-Identifier: GPL-3.0-or-later
+// Copyright 2021 yuzu Emulator Project
+// Copyright 2014 The Android Open Source Project
+// Parts of this implementation were base on:
+// https://cs.android.com/android/platform/superproject/+/android-5.1.1_r38:frameworks/native/libs/gui/BufferQueueConsumer.cpp
+
+#include "common/logging/log.h"
+#include "core/hle/service/nvflinger/buffer_item.h"
+#include "core/hle/service/nvflinger/buffer_queue_consumer.h"
+#include "core/hle/service/nvflinger/buffer_queue_core.h"
+#include "core/hle/service/nvflinger/producer_listener.h"
+
+namespace Service::android {
+
+BufferQueueConsumer::BufferQueueConsumer(std::shared_ptr<BufferQueueCore> core_)
+    : core{std::move(core_)}, slots{core->slots} {}
+
+BufferQueueConsumer::~BufferQueueConsumer() = default;
+
+Status BufferQueueConsumer::AcquireBuffer(BufferItem* out_buffer,
+                                          std::chrono::nanoseconds expected_present,
+                                          u64 max_frame_number) {
+    std::scoped_lock lock(core->mutex);
+
+    // Check that the consumer doesn't currently have the maximum number of buffers acquired.
+    const s32 num_acquired_buffers{
+        static_cast<s32>(std::count_if(slots.begin(), slots.end(), [](const auto& slot) {
+            return slot.buffer_state == BufferState::Acquired;
+        }))};
+
+    if (num_acquired_buffers >= core->max_acquired_buffer_count + 1) {
+        LOG_ERROR(Service_NVFlinger, "max acquired buffer count reached: {} (max {})",
+                  num_acquired_buffers, core->max_acquired_buffer_count);
+        return Status::InvalidOperation;
+    }
+
+    // Check if the queue is empty.
+    if (core->queue.empty()) {
+        return Status::NoBufferAvailable;
+    }
+
+    auto front(core->queue.begin());
+
+    // If expected_present is specified, we may not want to return a buffer yet.
+    if (expected_present.count() != 0) {
+        constexpr auto MAX_REASONABLE_NSEC = 1000000000LL; // 1 second
+
+        // The expected_present argument indicates when the buffer is expected to be presented
+        // on-screen.
+        while (core->queue.size() > 1 && !core->queue[0].is_auto_timestamp) {
+            const auto& buffer_item{core->queue[1]};
+
+            // If dropping entry[0] would leave us with a buffer that the consumer is not yet ready
+            // for, don't drop it.
+            if (max_frame_number && buffer_item.frame_number > max_frame_number) {
+                break;
+            }
+
+            // If entry[1] is timely, drop entry[0] (and repeat).
+            const auto desired_present = buffer_item.timestamp;
+            if (desired_present < expected_present.count() - MAX_REASONABLE_NSEC ||
+                desired_present > expected_present.count()) {
+                // This buffer is set to display in the near future, or desired_present is garbage.
+                LOG_DEBUG(Service_NVFlinger, "nodrop desire={} expect={}", desired_present,
+                          expected_present.count());
+                break;
+            }
+
+            LOG_DEBUG(Service_NVFlinger, "drop desire={} expect={} size={}", desired_present,
+                      expected_present.count(), core->queue.size());
+
+            if (core->StillTracking(*front)) {
+                // Front buffer is still in mSlots, so mark the slot as free
+                slots[front->slot].buffer_state = BufferState::Free;
+            }
+
+            core->queue.erase(front);
+            front = core->queue.begin();
+        }
+
+        // See if the front buffer is ready to be acquired.
+        const auto desired_present = front->timestamp;
+        if (desired_present > expected_present.count() &&
+            desired_present < expected_present.count() + MAX_REASONABLE_NSEC) {
+            LOG_DEBUG(Service_NVFlinger, "defer desire={} expect={}", desired_present,
+                      expected_present.count());
+            return Status::PresentLater;
+        }
+
+        LOG_DEBUG(Service_NVFlinger, "accept desire={} expect={}", desired_present,
+                  expected_present.count());
+    }
+
+    const auto slot = front->slot;
+    *out_buffer = *front;
+
+    LOG_DEBUG(Service_NVFlinger, "acquiring slot={}", slot);
+
+    // If the front buffer is still being tracked, update its slot state
+    if (core->StillTracking(*front)) {
+        slots[slot].acquire_called = true;
+        slots[slot].needs_cleanup_on_release = false;
+        slots[slot].buffer_state = BufferState::Acquired;
+        slots[slot].fence = Fence::NoFence();
+    }
+
+    // If the buffer has previously been acquired by the consumer, set graphic_buffer to nullptr to
+    // avoid unnecessarily remapping this buffer on the consumer side.
+    if (out_buffer->acquire_called) {
+        out_buffer->graphic_buffer = nullptr;
+    }
+
+    core->queue.erase(front);
+
+    // We might have freed a slot while dropping old buffers, or the producer  may be blocked
+    // waiting for the number of buffers in the queue to decrease.
+    core->SignalDequeueCondition();
+
+    return Status::NoError;
+}
+
+Status BufferQueueConsumer::ReleaseBuffer(s32 slot, u64 frame_number, const Fence& release_fence) {
+    if (slot < 0 || slot >= BufferQueueDefs::NUM_BUFFER_SLOTS) {
+        LOG_ERROR(Service_NVFlinger, "slot {} out of range", slot);
+        return Status::BadValue;
+    }
+
+    std::shared_ptr<IProducerListener> listener;
+    {
+        std::scoped_lock lock(core->mutex);
+
+        // If the frame number has changed because the buffer has been reallocated, we can ignore
+        // this ReleaseBuffer for the old buffer.
+        if (frame_number != slots[slot].frame_number) {
+            return Status::StaleBufferSlot;
+        }
+
+        // Make sure this buffer hasn't been queued while acquired by the consumer.
+        auto current(core->queue.begin());
+        while (current != core->queue.end()) {
+            if (current->slot == slot) {
+                LOG_ERROR(Service_NVFlinger, "buffer slot {} pending release is currently queued",
+                          slot);
+                return Status::BadValue;
+            }
+            ++current;
+        }
+
+        if (slots[slot].buffer_state == BufferState::Acquired) {
+            slots[slot].fence = release_fence;
+            slots[slot].buffer_state = BufferState::Free;
+
+            listener = core->connected_producer_listener;
+
+            LOG_DEBUG(Service_NVFlinger, "releasing slot {}", slot);
+        } else if (slots[slot].needs_cleanup_on_release) {
+            LOG_DEBUG(Service_NVFlinger, "releasing a stale buffer slot {} (state = {})", slot,
+                      slots[slot].buffer_state);
+
+            slots[slot].needs_cleanup_on_release = false;
+
+            return Status::StaleBufferSlot;
+        } else {
+            LOG_ERROR(Service_NVFlinger, "attempted to release buffer slot {} but its state was {}",
+                      slot, slots[slot].buffer_state);
+
+            return Status::BadValue;
+        }
+
+        core->SignalDequeueCondition();
+    }
+
+    // Call back without lock held
+    if (listener != nullptr) {
+        listener->OnBufferReleased();
+    }
+
+    return Status::NoError;
+}
+
+Status BufferQueueConsumer::Connect(std::shared_ptr<IConsumerListener> consumer_listener,
+                                    bool controlled_by_app) {
+    if (consumer_listener == nullptr) {
+        LOG_ERROR(Service_NVFlinger, "consumer_listener may not be nullptr");
+        return Status::BadValue;
+    }
+
+    LOG_DEBUG(Service_NVFlinger, "controlled_by_app={}", controlled_by_app);
+
+    std::scoped_lock lock(core->mutex);
+
+    if (core->is_abandoned) {
+        LOG_ERROR(Service_NVFlinger, "BufferQueue has been abandoned");
+        return Status::NoInit;
+    }
+
+    core->consumer_listener = consumer_listener;
+    core->consumer_controlled_by_app = controlled_by_app;
+
+    return Status::NoError;
+}
+
+} // namespace Service::android

src/core/hle/service/nvflinger/buffer_queue_consumer.h

@@ -0,0 +1,37 @@
+// SPDX-License-Identifier: GPL-3.0-or-later
+// Copyright 2021 yuzu Emulator Project
+// Copyright 2014 The Android Open Source Project
+// Parts of this implementation were base on:
+// https://cs.android.com/android/platform/superproject/+/android-5.1.1_r38:frameworks/native/include/gui/BufferQueueConsumer.h
+
+#pragma once
+
+#include <chrono>
+#include <memory>
+
+#include "common/common_types.h"
+#include "core/hle/service/nvflinger/buffer_queue_defs.h"
+#include "core/hle/service/nvflinger/status.h"
+
+namespace Service::android {
+
+class BufferItem;
+class BufferQueueCore;
+class IConsumerListener;
+
+class BufferQueueConsumer final {
+public:
+    explicit BufferQueueConsumer(std::shared_ptr<BufferQueueCore> core_);
+    ~BufferQueueConsumer();
+
+    Status AcquireBuffer(BufferItem* out_buffer, std::chrono::nanoseconds expected_present,
+                         u64 max_frame_number = 0);
+    Status ReleaseBuffer(s32 slot, u64 frame_number, const Fence& release_fence);
+    Status Connect(std::shared_ptr<IConsumerListener> consumer_listener, bool controlled_by_app);
+
+private:
+    std::shared_ptr<BufferQueueCore> core;
+    BufferQueueDefs::SlotsType& slots;
+};
+
+} // namespace Service::android

src/core/hle/service/nvflinger/buffer_queue_core.cpp

@@ -0,0 +1,118 @@
+// SPDX-License-Identifier: GPL-3.0-or-later
+// Copyright 2021 yuzu Emulator Project
+// Copyright 2014 The Android Open Source Project
+// Parts of this implementation were base on:
+// https://cs.android.com/android/platform/superproject/+/android-5.1.1_r38:frameworks/native/libs/gui/BufferQueueCore.cpp
+
+#include "common/assert.h"
+
+#include "core/hle/service/nvflinger/buffer_queue_core.h"
+
+namespace Service::android {
+
+BufferQueueCore::BufferQueueCore() = default;
+
+BufferQueueCore::~BufferQueueCore() = default;
+
+void BufferQueueCore::NotifyShutdown() {
+    std::scoped_lock lock(mutex);
+
+    is_shutting_down = true;
+
+    SignalDequeueCondition();
+}
+
+void BufferQueueCore::SignalDequeueCondition() {
+    dequeue_condition.notify_all();
+}
+
+bool BufferQueueCore::WaitForDequeueCondition() {
+    if (is_shutting_down) {
+        return false;
+    }
+
+    dequeue_condition.wait(mutex);
+
+    return true;
+}
+
+s32 BufferQueueCore::GetMinUndequeuedBufferCountLocked(bool async) const {
+    // If DequeueBuffer is allowed to error out, we don't have to add an extra buffer.
+    if (!use_async_buffer) {
+        return max_acquired_buffer_count;
+    }
+
+    if (dequeue_buffer_cannot_block || async) {
+        return max_acquired_buffer_count + 1;
+    }
+
+    return max_acquired_buffer_count;
+}
+
+s32 BufferQueueCore::GetMinMaxBufferCountLocked(bool async) const {
+    return GetMinUndequeuedBufferCountLocked(async) + 1;
+}
+
+s32 BufferQueueCore::GetMaxBufferCountLocked(bool async) const {
+    const auto min_buffer_count = GetMinMaxBufferCountLocked(async);
+    auto max_buffer_count = std::max(default_max_buffer_count, min_buffer_count);
+
+    if (override_max_buffer_count != 0) {
+        ASSERT(override_max_buffer_count >= min_buffer_count);
+        max_buffer_count = override_max_buffer_count;
+    }
+
+    // Any buffers that are dequeued by the producer or sitting in the queue waiting to be consumed
+    // need to have their slots preserved.
+    for (s32 slot = max_buffer_count; slot < BufferQueueDefs::NUM_BUFFER_SLOTS; ++slot) {
+        const auto state = slots[slot].buffer_state;
+        if (state == BufferState::Queued || state == BufferState::Dequeued) {
+            max_buffer_count = slot + 1;
+        }
+    }
+
+    return max_buffer_count;
+}
+
+s32 BufferQueueCore::GetPreallocatedBufferCountLocked() const {
+    return static_cast<s32>(std::count_if(slots.begin(), slots.end(),
+                                          [](const auto& slot) { return slot.is_preallocated; }));
+}
+
+void BufferQueueCore::FreeBufferLocked(s32 slot) {
+    LOG_DEBUG(Service_NVFlinger, "slot {}", slot);
+
+    slots[slot].graphic_buffer.reset();
+
+    if (slots[slot].buffer_state == BufferState::Acquired) {
+        slots[slot].needs_cleanup_on_release = true;
+    }
+
+    slots[slot].buffer_state = BufferState::Free;
+    slots[slot].frame_number = UINT32_MAX;
+    slots[slot].acquire_called = false;
+    slots[slot].fence = Fence::NoFence();
+}
+
+void BufferQueueCore::FreeAllBuffersLocked() {
+    queue.clear();
+    buffer_has_been_queued = false;
+
+    for (s32 slot = 0; slot < BufferQueueDefs::NUM_BUFFER_SLOTS; ++slot) {
+        FreeBufferLocked(slot);
+    }
+}
+
+bool BufferQueueCore::StillTracking(const BufferItem& item) const {
+    const BufferSlot& slot = slots[item.slot];
+
+    return (slot.graphic_buffer != nullptr) && (item.graphic_buffer == slot.graphic_buffer);
+}
+
+void BufferQueueCore::WaitWhileAllocatingLocked() const {
+    while (is_allocating) {
+        is_allocating_condition.wait(mutex);
+    }
+}
+
+} // namespace Service::android

src/core/hle/service/nvflinger/buffer_queue_core.h

@@ -0,0 +1,81 @@
+// SPDX-License-Identifier: GPL-3.0-or-later
+// Copyright 2021 yuzu Emulator Project
+// Copyright 2014 The Android Open Source Project
+// Parts of this implementation were base on:
+// https://cs.android.com/android/platform/superproject/+/android-5.1.1_r38:frameworks/native/include/gui/BufferQueueCore.h
+
+#pragma once
+
+#include <condition_variable>
+#include <list>
+#include <memory>
+#include <mutex>
+#include <set>
+#include <vector>
+
+#include "core/hle/service/nvflinger/buffer_item.h"
+#include "core/hle/service/nvflinger/buffer_queue_defs.h"
+#include "core/hle/service/nvflinger/pixel_format.h"
+#include "core/hle/service/nvflinger/status.h"
+#include "core/hle/service/nvflinger/window.h"
+
+namespace Service::android {
+
+class IConsumerListener;
+class IProducerListener;
+
+class BufferQueueCore final {
+    friend class BufferQueueProducer;
+    friend class BufferQueueConsumer;
+
+public:
+    static constexpr s32 INVALID_BUFFER_SLOT = BufferItem::INVALID_BUFFER_SLOT;
+
+    BufferQueueCore();
+    ~BufferQueueCore();
+
+    void NotifyShutdown();
+
+private:
+    void SignalDequeueCondition();
+    bool WaitForDequeueCondition();
+
+    s32 GetMinUndequeuedBufferCountLocked(bool async) const;
+    s32 GetMinMaxBufferCountLocked(bool async) const;
+    s32 GetMaxBufferCountLocked(bool async) const;
+    s32 GetPreallocatedBufferCountLocked() const;
+    void FreeBufferLocked(s32 slot);
+    void FreeAllBuffersLocked();
+    bool StillTracking(const BufferItem& item) const;
+    void WaitWhileAllocatingLocked() const;
+
+private:
+    mutable std::mutex mutex;
+    bool is_abandoned{};
+    bool consumer_controlled_by_app{};
+    std::shared_ptr<IConsumerListener> consumer_listener;
+    u32 consumer_usage_bit{};
+    NativeWindowApi connected_api{NativeWindowApi::NoConnectedApi};
+    std::shared_ptr<IProducerListener> connected_producer_listener;
+    BufferQueueDefs::SlotsType slots{};
+    std::vector<BufferItem> queue;
+    s32 override_max_buffer_count{};
+    mutable std::condition_variable_any dequeue_condition;
+    const bool use_async_buffer{}; // This is always disabled on HOS
+    bool dequeue_buffer_cannot_block{};
+    PixelFormat default_buffer_format{PixelFormat::Rgba8888};
+    u32 default_width{1};
+    u32 default_height{1};
+    s32 default_max_buffer_count{2};
+    const s32 max_acquired_buffer_count{}; // This is always zero on HOS
+    bool buffer_has_been_queued{};
+    u64 frame_counter{};
+    u32 transform_hint{};
+    bool is_allocating{};
+    mutable std::condition_variable_any is_allocating_condition;
+    bool allow_allocation{true};
+    u64 buffer_age{};
+    bool is_shutting_down{};
+};
+
+} // namespace Service::android

src/core/hle/service/nvflinger/buffer_queue_defs.h

@@ -0,0 +1,21 @@
+// SPDX-License-Identifier: GPL-3.0-or-later
+// Copyright 2021 yuzu Emulator Project
+// Copyright 2014 The Android Open Source Project
+// Parts of this implementation were base on:
+// https://cs.android.com/android/platform/superproject/+/android-5.1.1_r38:frameworks/native/include/gui/BufferQueueDefs.h
+
+#pragma once
+
+#include <array>
+
+#include "common/common_types.h"
+#include "core/hle/service/nvflinger/buffer_slot.h"
+
+namespace Service::android::BufferQueueDefs {
+
+// BufferQueue will keep track of at most this value of buffers.
+constexpr s32 NUM_BUFFER_SLOTS = 64;
+
+using SlotsType = std::array<BufferSlot, NUM_BUFFER_SLOTS>;
+
+} // namespace Service::android::BufferQueueDefs

src/core/hle/service/nvflinger/buffer_queue_producer.cpp

@@ -0,0 +1,942 @@
+// SPDX-License-Identifier: GPL-3.0-or-later
+// Copyright 2021 yuzu Emulator Project
+// Copyright 2014 The Android Open Source Project
+// Parts of this implementation were base on:
+// https://cs.android.com/android/platform/superproject/+/android-5.1.1_r38:frameworks/native/libs/gui/BufferQueueProducer.cpp
+
+#include "common/assert.h"
+#include "common/logging/log.h"
+#include "common/settings.h"
+#include "core/core.h"
+#include "core/hle/kernel/hle_ipc.h"
+#include "core/hle/kernel/k_event.h"
+#include "core/hle/kernel/k_readable_event.h"
+#include "core/hle/kernel/k_writable_event.h"
+#include "core/hle/kernel/kernel.h"
+#include "core/hle/service/kernel_helpers.h"
+#include "core/hle/service/nvdrv/nvdrv.h"
+#include "core/hle/service/nvflinger/buffer_queue_core.h"
+#include "core/hle/service/nvflinger/buffer_queue_producer.h"
+#include "core/hle/service/nvflinger/consumer_listener.h"
+#include "core/hle/service/nvflinger/parcel.h"
+#include "core/hle/service/nvflinger/ui/graphic_buffer.h"
+#include "core/hle/service/nvflinger/window.h"
+#include "core/hle/service/vi/vi.h"
+
+namespace Service::android {
+
+BufferQueueProducer::BufferQueueProducer(Service::KernelHelpers::ServiceContext& service_context_,
+                                         std::shared_ptr<BufferQueueCore> buffer_queue_core_)
+    : service_context{service_context_}, core{std::move(buffer_queue_core_)}, slots(core->slots) {
+    buffer_wait_event = service_context.CreateEvent("BufferQueue:WaitEvent");
+}
+
+BufferQueueProducer::~BufferQueueProducer() {
+    service_context.CloseEvent(buffer_wait_event);
+}
+
+Status BufferQueueProducer::RequestBuffer(s32 slot, std::shared_ptr<GraphicBuffer>* buf) {
+    LOG_DEBUG(Service_NVFlinger, "slot {}", slot);
+
+    std::scoped_lock lock(core->mutex);
+
+    if (core->is_abandoned) {
+        LOG_ERROR(Service_NVFlinger, "BufferQueue has been abandoned");
+        return Status::NoInit;
+    }
+    if (slot < 0 || slot >= BufferQueueDefs::NUM_BUFFER_SLOTS) {
+        LOG_ERROR(Service_NVFlinger, "slot index {} out of range [0, {})", slot,
+                  BufferQueueDefs::NUM_BUFFER_SLOTS);
+        return Status::BadValue;
+    } else if (slots[slot].buffer_state != BufferState::Dequeued) {
+        LOG_ERROR(Service_NVFlinger, "slot {} is not owned by the producer (state = {})", slot,
+                  slots[slot].buffer_state);
+        return Status::BadValue;
+    }
+
+    slots[slot].request_buffer_called = true;
+    *buf = slots[slot].graphic_buffer;
+
+    return Status::NoError;
+}
+
+Status BufferQueueProducer::SetBufferCount(s32 buffer_count) {
+    LOG_DEBUG(Service_NVFlinger, "count = {}", buffer_count);
+    std::shared_ptr<IConsumerListener> listener;
+
+    {
+        std::scoped_lock lock(core->mutex);
+        core->WaitWhileAllocatingLocked();
+        if (core->is_abandoned) {
+            LOG_ERROR(Service_NVFlinger, "BufferQueue has been abandoned");
+            return Status::NoInit;
+        }
+
+        if (buffer_count > BufferQueueDefs::NUM_BUFFER_SLOTS) {
+            LOG_ERROR(Service_NVFlinger, "buffer_count {} too large (max {})", buffer_count,
+                      BufferQueueDefs::NUM_BUFFER_SLOTS);
+            return Status::BadValue;
+        }
+
+        // There must be no dequeued buffers when changing the buffer count.
+        for (s32 s{}; s < BufferQueueDefs::NUM_BUFFER_SLOTS; ++s) {
+            if (slots[s].buffer_state == BufferState::Dequeued) {
+                LOG_ERROR(Service_NVFlinger, "buffer owned by producer");
+                return Status::BadValue;
+            }
+        }
+
+        if (buffer_count == 0) {
+            core->override_max_buffer_count = 0;
+            core->SignalDequeueCondition();
+            return Status::NoError;
+        }
+
+        const s32 min_buffer_slots = core->GetMinMaxBufferCountLocked(false);
+        if (buffer_count < min_buffer_slots) {
+            LOG_ERROR(Service_NVFlinger, "requested buffer count {} is less than minimum {}",
+                      buffer_count, min_buffer_slots);
+            return Status::BadValue;
+        }
+
+        // Here we are guaranteed that the producer doesn't have any dequeued buffers and will
+        // release all of its buffer references.
+        if (core->GetPreallocatedBufferCountLocked() <= 0) {
+            core->FreeAllBuffersLocked();
+        }
+
+        core->override_max_buffer_count = buffer_count;
+        core->SignalDequeueCondition();
+        buffer_wait_event->GetWritableEvent().Signal();
+        listener = core->consumer_listener;
+    }
+
+    // Call back without lock held
+    if (listener != nullptr) {
+        listener->OnBuffersReleased();
+    }
+
+    return Status::NoError;
+}
+
+Status BufferQueueProducer::WaitForFreeSlotThenRelock(bool async, s32* found,
+                                                      Status* returnFlags) const {
+    bool try_again = true;
+
+    while (try_again) {
+        if (core->is_abandoned) {
+            LOG_ERROR(Service_NVFlinger, "BufferQueue has been abandoned");
+            return Status::NoInit;
+        }
+
+        const s32 max_buffer_count = core->GetMaxBufferCountLocked(async);
+        if (async && core->override_max_buffer_count) {
+            if (core->override_max_buffer_count < max_buffer_count) {
+                LOG_ERROR(Service_NVFlinger, "async mode is invalid with buffer count override");
+                return Status::BadValue;
+            }
+        }
+
+        // Free up any buffers that are in slots beyond the max buffer count
+        for (s32 s = max_buffer_count; s < BufferQueueDefs::NUM_BUFFER_SLOTS; ++s) {
+            ASSERT(slots[s].buffer_state == BufferState::Free);
+            if (slots[s].graphic_buffer != nullptr) {
+                core->FreeBufferLocked(s);
+                *returnFlags |= Status::ReleaseAllBuffers;
+            }
+        }
+
+        s32 dequeued_count{};
+        s32 acquired_count{};
+        for (s32 s{}; s < max_buffer_count; ++s) {
+            switch (slots[s].buffer_state) {
+            case BufferState::Dequeued:
+                ++dequeued_count;
+                break;
+            case BufferState::Acquired:
+                ++acquired_count;
+                break;
+            case BufferState::Free:
+                // We return the oldest of the free buffers to avoid stalling the producer if
+                // possible, since the consumer may still have pending reads of in-flight buffers
+                if (*found == BufferQueueCore::INVALID_BUFFER_SLOT ||
+                    slots[s].frame_number < slots[*found].frame_number) {
+                    *found = s;
+                }
+                break;
+            default:
+                break;
+            }
+        }
+
+        // Producers are not allowed to dequeue more than one buffer if they did not set a buffer
+        // count
+        if (!core->override_max_buffer_count && dequeued_count) {
+            LOG_ERROR(Service_NVFlinger,
+                      "can't dequeue multiple buffers without setting the buffer count");
+            return Status::InvalidOperation;
+        }
+
+        // See whether a buffer has been queued since the last SetBufferCount so we know whether to
+        // perform the min undequeued buffers check below
+        if (core->buffer_has_been_queued) {
+            // Make sure the producer is not trying to dequeue more buffers than allowed
+            const s32 new_undequeued_count = max_buffer_count - (dequeued_count + 1);
+            const s32 min_undequeued_count = core->GetMinUndequeuedBufferCountLocked(async);
+            if (new_undequeued_count < min_undequeued_count) {
+                LOG_ERROR(Service_NVFlinger,
+                          "min undequeued buffer count({}) exceeded (dequeued={} undequeued={})",
+                          min_undequeued_count, dequeued_count, new_undequeued_count);
+                return Status::InvalidOperation;
+            }
+        }
+
+        // If we disconnect and reconnect quickly, we can be in a state where our slots are empty
+        // but we have many buffers in the queue. This can cause us to run out of memory if we
+        // outrun the consumer. Wait here if it looks like we have too many buffers queued up.
+        const bool too_many_buffers = core->queue.size() > static_cast<size_t>(max_buffer_count);
+        if (too_many_buffers) {
+            LOG_ERROR(Service_NVFlinger, "queue size is {}, waiting", core->queue.size());
+        }
+
+        // If no buffer is found, or if the queue has too many buffers outstanding, wait for a
+        // buffer to be acquired or released, or for the max buffer count to change.
+        try_again = (*found == BufferQueueCore::INVALID_BUFFER_SLOT) || too_many_buffers;
+        if (try_again) {
+            // Return an error if we're in non-blocking mode (producer and consumer are controlled
+            // by the application).
+            if (core->dequeue_buffer_cannot_block &&
+                (acquired_count <= core->max_acquired_buffer_count)) {
+                return Status::WouldBlock;
+            }
+
+            if (!core->WaitForDequeueCondition()) {
+                // We are no longer running
+                return Status::NoError;
+            }
+        }
+    }
+
+    return Status::NoError;
+}
+
+Status BufferQueueProducer::DequeueBuffer(s32* out_slot, Fence* out_fence, bool async, u32 width,
+                                          u32 height, PixelFormat format, u32 usage) {
+    LOG_DEBUG(Service_NVFlinger, "async={} w={} h={} format={}, usage={}", async ? "true" : "false",
+              width, height, format, usage);
+
+    if ((width != 0 && height == 0) || (width == 0 && height != 0)) {
+        LOG_ERROR(Service_NVFlinger, "invalid size: w={} h={}", width, height);
+        return Status::BadValue;
+    }
+
+    Status return_flags = Status::NoError;
+    bool attached_by_consumer = false;
+    {
+        std::scoped_lock lock(core->mutex);
+        core->WaitWhileAllocatingLocked();
+        if (format == PixelFormat::NoFormat) {
+            format = core->default_buffer_format;
+        }
+
+        // Enable the usage bits the consumer requested
+        usage |= core->consumer_usage_bit;
+        const bool use_default_size = !width && !height;
+        if (use_default_size) {
+            width = core->default_width;
+            height = core->default_height;
+        }
+
+        s32 found = BufferItem::INVALID_BUFFER_SLOT;
+        while (found == BufferItem::INVALID_BUFFER_SLOT) {
+            Status status = WaitForFreeSlotThenRelock(async, &found, &return_flags);
+            if (status != Status::NoError) {
+                return status;
+            }
+
+            // This should not happen
+            if (found == BufferQueueCore::INVALID_BUFFER_SLOT) {
+                LOG_DEBUG(Service_NVFlinger, "no available buffer slots");
+                return Status::Busy;
+            }
+
+            const std::shared_ptr<GraphicBuffer>& buffer(slots[found].graphic_buffer);
+
+            // If we are not allowed to allocate new buffers, WaitForFreeSlotThenRelock must have
+            // returned a slot containing a buffer. If this buffer would require reallocation to
+            // meet the requested attributes, we free it and attempt to get another one.
+            if (!core->allow_allocation) {
+                if (buffer->NeedsReallocation(width, height, format, usage)) {
+                    core->FreeBufferLocked(found);
+                    found = BufferItem::INVALID_BUFFER_SLOT;
+                    continue;
+                }
+            }
+        }
+
+        *out_slot = found;
+        attached_by_consumer = slots[found].attached_by_consumer;
+        slots[found].buffer_state = BufferState::Dequeued;
+
+        const std::shared_ptr<GraphicBuffer>& buffer(slots[found].graphic_buffer);
+
+        if ((buffer == nullptr) || buffer->NeedsReallocation(width, height, format, usage)) {
+            slots[found].acquire_called = false;
+            slots[found].graphic_buffer = nullptr;
+            slots[found].request_buffer_called = false;
+            slots[found].fence = Fence::NoFence();
+            core->buffer_age = 0;
+            return_flags |= Status::BufferNeedsReallocation;
+        } else {
+            // We add 1 because that will be the frame number when this buffer
+            // is queued
+            core->buffer_age = core->frame_counter + 1 - slots[found].frame_number;
+        }
+
+        LOG_DEBUG(Service_NVFlinger, "setting buffer age to {}", core->buffer_age);
+
+        *out_fence = slots[found].fence;
+
+        slots[found].fence = Fence::NoFence();
+    }
+
+    if ((return_flags & Status::BufferNeedsReallocation) != Status::None) {
+        LOG_DEBUG(Service_NVFlinger, "allocating a new buffer for slot {}", *out_slot);
+
+        auto graphic_buffer = std::make_shared<GraphicBuffer>(width, height, format, usage);
+        if (graphic_buffer == nullptr) {
+            LOG_ERROR(Service_NVFlinger, "creating GraphicBuffer failed");
+            return Status::NoMemory;
+        }
+
+        {
+            std::scoped_lock lock(core->mutex);
+            if (core->is_abandoned) {
+                LOG_ERROR(Service_NVFlinger, "BufferQueue has been abandoned");
+                return Status::NoInit;
+            }
+
+            slots[*out_slot].frame_number = UINT32_MAX;
+            slots[*out_slot].graphic_buffer = graphic_buffer;
+        }
+    }
+
+    if (attached_by_consumer) {
+        return_flags |= Status::BufferNeedsReallocation;
+    }
+
+    LOG_DEBUG(Service_NVFlinger, "returning slot={} frame={}, flags={}", *out_slot,
+              slots[*out_slot].frame_number, return_flags);
+    return return_flags;
+}
+
+Status BufferQueueProducer::DetachBuffer(s32 slot) {
+    LOG_DEBUG(Service_NVFlinger, "slot {}", slot);
+
+    std::scoped_lock lock(core->mutex);
+    if (core->is_abandoned) {
+        LOG_ERROR(Service_NVFlinger, "BufferQueue has been abandoned");
+        return Status::NoInit;
+    }
+
+    if (slot < 0 || slot >= BufferQueueDefs::NUM_BUFFER_SLOTS) {
+        LOG_ERROR(Service_NVFlinger, "slot {} out of range [0, {})", slot,
+                  BufferQueueDefs::NUM_BUFFER_SLOTS);
+        return Status::BadValue;
+    } else if (slots[slot].buffer_state != BufferState::Dequeued) {
+        LOG_ERROR(Service_NVFlinger, "slot {} is not owned by the producer (state = {})", slot,
+                  slots[slot].buffer_state);
+        return Status::BadValue;
+    } else if (!slots[slot].request_buffer_called) {
+        LOG_ERROR(Service_NVFlinger, "buffer in slot {} has not been requested", slot);
+        return Status::BadValue;
+    }
+
+    core->FreeBufferLocked(slot);
+    core->SignalDequeueCondition();
+
+    return Status::NoError;
+}
+
+Status BufferQueueProducer::DetachNextBuffer(std::shared_ptr<GraphicBuffer>* out_buffer,
+                                             Fence* out_fence) {
+    if (out_buffer == nullptr) {
+        LOG_ERROR(Service_NVFlinger, "out_buffer must not be nullptr");
+        return Status::BadValue;
+    } else if (out_fence == nullptr) {
+        LOG_ERROR(Service_NVFlinger, "out_fence must not be nullptr");
+        return Status::BadValue;
+    }
+
+    std::scoped_lock lock(core->mutex);
+
+    core->WaitWhileAllocatingLocked();
+
+    if (core->is_abandoned) {
+        LOG_ERROR(Service_NVFlinger, "BufferQueue has been abandoned");
+        return Status::NoInit;
+    }
+
+    // Find the oldest valid slot
+    int found = BufferQueueCore::INVALID_BUFFER_SLOT;
+    for (int s = 0; s < BufferQueueDefs::NUM_BUFFER_SLOTS; ++s) {
+        if (slots[s].buffer_state == BufferState::Free && slots[s].graphic_buffer != nullptr) {
+            if (found == BufferQueueCore::INVALID_BUFFER_SLOT ||
+                slots[s].frame_number < slots[found].frame_number) {
+                found = s;
+            }
+        }
+    }
+
+    if (found == BufferQueueCore::INVALID_BUFFER_SLOT) {
+        return Status::NoMemory;
+    }
+
+    LOG_DEBUG(Service_NVFlinger, "Detached slot {}", found);
+
+    *out_buffer = slots[found].graphic_buffer;
+    *out_fence = slots[found].fence;
+
+    core->FreeBufferLocked(found);
+
+    return Status::NoError;
+}
+
+Status BufferQueueProducer::AttachBuffer(s32* out_slot,
+                                         const std::shared_ptr<GraphicBuffer>& buffer) {
+    if (out_slot == nullptr) {
+        LOG_ERROR(Service_NVFlinger, "out_slot must not be nullptr");
+        return Status::BadValue;
+    } else if (buffer == nullptr) {
+        LOG_ERROR(Service_NVFlinger, "Cannot attach nullptr buffer");
+        return Status::BadValue;
+    }
+
+    std::scoped_lock lock(core->mutex);
+    core->WaitWhileAllocatingLocked();
+
+    Status return_flags = Status::NoError;
+    s32 found{};
+
+    const auto status = WaitForFreeSlotThenRelock(false, &found, &return_flags);
+    if (status != Status::NoError) {
+        return status;
+    }
+
+    if (found == BufferQueueCore::INVALID_BUFFER_SLOT) {
+        LOG_ERROR(Service_NVFlinger, "No available buffer slots");
+        return Status::Busy;
+    }
+
+    *out_slot = found;
+
+    LOG_DEBUG(Service_NVFlinger, "Returning slot {} flags={}", *out_slot, return_flags);
+
+    slots[*out_slot].graphic_buffer = buffer;
+    slots[*out_slot].buffer_state = BufferState::Dequeued;
+    slots[*out_slot].fence = Fence::NoFence();
+    slots[*out_slot].request_buffer_called = true;
+
+    return return_flags;
+}
+
+Status BufferQueueProducer::QueueBuffer(s32 slot, const QueueBufferInput& input,
+                                        QueueBufferOutput* output) {
+    s64 timestamp{};
+    bool is_auto_timestamp{};
+    Common::Rectangle<s32> crop;
+    NativeWindowScalingMode scaling_mode{};
+    NativeWindowTransform transform;
+    u32 sticky_transform_{};
+    bool async{};
+    s32 swap_interval{};
+    Fence fence{};
+
+    input.Deflate(&timestamp, &is_auto_timestamp, &crop, &scaling_mode, &transform,
+                  &sticky_transform_, &async, &swap_interval, &fence);
+
+    switch (scaling_mode) {
+    case NativeWindowScalingMode::Freeze:
+    case NativeWindowScalingMode::ScaleToWindow:
+    case NativeWindowScalingMode::ScaleCrop:
+    case NativeWindowScalingMode::NoScaleCrop:
+        break;
+    default:
+        LOG_ERROR(Service_NVFlinger, "unknown scaling mode {}", scaling_mode);
+        return Status::BadValue;
+    }
+
+    std::shared_ptr<IConsumerListener> frameAvailableListener;
+    std::shared_ptr<IConsumerListener> frameReplacedListener;
+    s32 callback_ticket{};
+    BufferItem item;
+
+    {
+        std::scoped_lock lock(core->mutex);
+
+        if (core->is_abandoned) {
+            LOG_ERROR(Service_NVFlinger, "BufferQueue has been abandoned");
+            return Status::NoInit;
+        }
+
+        const s32 max_buffer_count = core->GetMaxBufferCountLocked(async);
+        if (async && core->override_max_buffer_count) {
+            if (core->override_max_buffer_count < max_buffer_count) {
+                LOG_ERROR(Service_NVFlinger, "async mode is invalid with "
+                                             "buffer count override");
+                return Status::BadValue;
+            }
+        }
+
+        if (slot < 0 || slot >= max_buffer_count) {
+            LOG_ERROR(Service_NVFlinger, "slot index {} out of range [0, {})", slot,
+                      max_buffer_count);
+            return Status::BadValue;
+        } else if (slots[slot].buffer_state != BufferState::Dequeued) {
+            LOG_ERROR(Service_NVFlinger,
+                      "slot {} is not owned by the producer "
+                      "(state = {})",
+                      slot, slots[slot].buffer_state);
+            return Status::BadValue;
+        } else if (!slots[slot].request_buffer_called) {
+            LOG_ERROR(Service_NVFlinger,
+                      "slot {} was queued without requesting "
+                      "a buffer",
+                      slot);
+            return Status::BadValue;
+        }
+
+        LOG_DEBUG(Service_NVFlinger,
+                  "slot={} frame={} time={} crop=[{},{},{},{}] transform={} scale={}", slot,
+                  core->frame_counter + 1, timestamp, crop.Left(), crop.Top(), crop.Right(),
+                  crop.Bottom(), transform, scaling_mode);
+
+        const std::shared_ptr<GraphicBuffer>& graphic_buffer(slots[slot].graphic_buffer);
+        Common::Rectangle<s32> buffer_rect(graphic_buffer->Width(), graphic_buffer->Height());
+        Common::Rectangle<s32> cropped_rect;
+        [[maybe_unused]] const bool unused = crop.Intersect(buffer_rect, &cropped_rect);
+
+        if (cropped_rect != crop) {
+            LOG_ERROR(Service_NVFlinger, "crop rect is not contained within the buffer in slot {}",
+                      slot);
+            return Status::BadValue;
+        }
+
+        slots[slot].fence = fence;
+        slots[slot].buffer_state = BufferState::Queued;
+        ++core->frame_counter;
+        slots[slot].frame_number = core->frame_counter;
+
+        item.acquire_called = slots[slot].acquire_called;
+        item.graphic_buffer = slots[slot].graphic_buffer;
+        item.crop = crop;
+        item.transform = transform & ~NativeWindowTransform::InverseDisplay;
+        item.transform_to_display_inverse =
+            (transform & NativeWindowTransform::InverseDisplay) != NativeWindowTransform::None;
+        item.scaling_mode = static_cast<u32>(scaling_mode);
+        item.timestamp = timestamp;
+        item.is_auto_timestamp = is_auto_timestamp;
+        item.frame_number = core->frame_counter;
+        item.slot = slot;
+        item.fence = fence;
+        item.is_droppable = core->dequeue_buffer_cannot_block || async;
+        item.swap_interval = swap_interval;
+        sticky_transform = sticky_transform_;
+
+        if (core->queue.empty()) {
+            // When the queue is empty, we can simply queue this buffer
+            core->queue.push_back(item);
+            frameAvailableListener = core->consumer_listener;
+        } else {
+            // When the queue is not empty, we need to look at the front buffer
+            // state to see if we need to replace it
+            auto front(core->queue.begin());
+
+            if (front->is_droppable) {
+                // If the front queued buffer is still being tracked, we first
+                // mark it as freed
+                if (core->StillTracking(*front)) {
+                    slots[front->slot].buffer_state = BufferState::Free;
+                    // Reset the frame number of the freed buffer so that it is the first in line to
+                    // be dequeued again
+                    slots[front->slot].frame_number = 0;
+                }
+                // Overwrite the droppable buffer with the incoming one
+                *front = item;
+                frameReplacedListener = core->consumer_listener;
+            } else {
+                core->queue.push_back(item);
+                frameAvailableListener = core->consumer_listener;
+            }
+        }
+
+        core->buffer_has_been_queued = true;
+        core->SignalDequeueCondition();
+        output->Inflate(core->default_width, core->default_height, core->transform_hint,
+                        static_cast<u32>(core->queue.size()));
+
+        // Take a ticket for the callback functions
+        callback_ticket = next_callback_ticket++;
+    }
+
+    // Don't send the GraphicBuffer through the callback, and don't send the slot number, since the
+    // consumer shouldn't need it
+    item.graphic_buffer.reset();
+    item.slot = BufferItem::INVALID_BUFFER_SLOT;
+
+    // Call back without the main BufferQueue lock held, but with the callback lock held so we can
+    // ensure that callbacks occur in order
+    {
+        std::scoped_lock lock(callback_mutex);
+        while (callback_ticket != current_callback_ticket) {
+            callback_condition.wait(callback_mutex);
+        }
+
+        if (frameAvailableListener != nullptr) {
+            frameAvailableListener->OnFrameAvailable(item);
+        } else if (frameReplacedListener != nullptr) {
+            frameReplacedListener->OnFrameReplaced(item);
+        }
+
+        ++current_callback_ticket;
+        callback_condition.notify_all();
+    }
+
+    return Status::NoError;
+}
+
+void BufferQueueProducer::CancelBuffer(s32 slot, const Fence& fence) {
+    LOG_DEBUG(Service_NVFlinger, "slot {}", slot);
+
+    std::scoped_lock lock(core->mutex);
+
+    if (core->is_abandoned) {
+        LOG_ERROR(Service_NVFlinger, "BufferQueue has been abandoned");
+        return;
+    }
+
+    if (slot < 0 || slot >= BufferQueueDefs::NUM_BUFFER_SLOTS) {
+        LOG_ERROR(Service_NVFlinger, "slot index {} out of range [0, {})", slot,
+                  BufferQueueDefs::NUM_BUFFER_SLOTS);
+        return;
+    } else if (slots[slot].buffer_state != BufferState::Dequeued) {
+        LOG_ERROR(Service_NVFlinger, "slot {} is not owned by the producer (state = {})", slot,
+                  slots[slot].buffer_state);
+        return;
+    }
+
+    slots[slot].buffer_state = BufferState::Free;
+    slots[slot].frame_number = 0;
+    slots[slot].fence = fence;
+
+    core->SignalDequeueCondition();
+    buffer_wait_event->GetWritableEvent().Signal();
+}
+
+Status BufferQueueProducer::Query(NativeWindow what, s32* out_value) {
+    std::scoped_lock lock(core->mutex);
+
+    if (out_value == nullptr) {
+        LOG_ERROR(Service_NVFlinger, "outValue was nullptr");
+        return Status::BadValue;
+    }
+
+    if (core->is_abandoned) {
+        LOG_ERROR(Service_NVFlinger, "BufferQueue has been abandoned");
+        return Status::NoInit;
+    }
+
+    u32 value{};
+    switch (what) {
+    case NativeWindow::Width:
+        value = core->default_width;
+        break;
+    case NativeWindow::Height:
+        value = core->default_height;
+        break;
+    case NativeWindow::Format:
+        value = static_cast<u32>(core->default_buffer_format);
+        break;
+    case NativeWindow::MinUndequeedBuffers:
+        value = core->GetMinUndequeuedBufferCountLocked(false);
+        break;
+    case NativeWindow::StickyTransform:
+        value = sticky_transform;
+        break;
+    case NativeWindow::ConsumerRunningBehind:
+        value = (core->queue.size() > 1);
+        break;
+    case NativeWindow::ConsumerUsageBits:
+        value = core->consumer_usage_bit;
+        break;
+    case NativeWindow::BufferAge:
+        if (core->buffer_age > INT32_MAX) {
+            value = 0;
+        } else {
+            value = static_cast<u32>(core->buffer_age);
+        }
+        break;
+    default:
+        UNREACHABLE();
+        return Status::BadValue;
+    }
+
+    LOG_DEBUG(Service_NVFlinger, "what = {}, value = {}", what, value);
+
+    *out_value = static_cast<s32>(value);
+
+    return Status::NoError;
+}
+
+Status BufferQueueProducer::Connect(const std::shared_ptr<IProducerListener>& listener,
+                                    NativeWindowApi api, bool producer_controlled_by_app,
+                                    QueueBufferOutput* output) {
+    std::scoped_lock lock(core->mutex);
+
+    LOG_DEBUG(Service_NVFlinger, "api = {} producer_controlled_by_app = {}", api,
+              producer_controlled_by_app);
+
+    if (core->is_abandoned) {
+        LOG_ERROR(Service_NVFlinger, "BufferQueue has been abandoned");
+        return Status::NoInit;
+    }
+
+    if (core->consumer_listener == nullptr) {
+        LOG_ERROR(Service_NVFlinger, "BufferQueue has no consumer");
+        return Status::NoInit;
+    }
+
+    if (output == nullptr) {
+        LOG_ERROR(Service_NVFlinger, "output was nullptr");
+        return Status::BadValue;
+    }
+
+    if (core->connected_api != NativeWindowApi::NoConnectedApi) {
+        LOG_ERROR(Service_NVFlinger, "already connected (cur = {} req = {})", core->connected_api,
+                  api);
+        return Status::BadValue;
+    }
+
+    Status status = Status::NoError;
+    switch (api) {
+    case NativeWindowApi::Egl:
+    case NativeWindowApi::Cpu:
+    case NativeWindowApi::Media:
+    case NativeWindowApi::Camera:
+        core->connected_api = api;
+        output->Inflate(core->default_width, core->default_height, core->transform_hint,
+                        static_cast<u32>(core->queue.size()));
+        core->connected_producer_listener = listener;
+        break;
+    default:
+        LOG_ERROR(Service_NVFlinger, "unknown api = {}", api);
+        status = Status::BadValue;
+        break;
+    }
+
+    core->buffer_has_been_queued = false;
+    core->dequeue_buffer_cannot_block =
+        core->consumer_controlled_by_app && producer_controlled_by_app;
+    core->allow_allocation = true;
+
+    return status;
+}
+
+Status BufferQueueProducer::Disconnect(NativeWindowApi api) {
+    LOG_DEBUG(Service_NVFlinger, "api = {}", api);
+
+    Status status = Status::NoError;
+    std::shared_ptr<IConsumerListener> listener;
+
+    {
+        std::scoped_lock lock(core->mutex);
+
+        core->WaitWhileAllocatingLocked();
+
+        if (core->is_abandoned) {
+            // Disconnecting after the surface has been abandoned is a no-op.
+            return Status::NoError;
+        }
+
+        switch (api) {
+        case NativeWindowApi::Egl:
+        case NativeWindowApi::Cpu:
+        case NativeWindowApi::Media:
+        case NativeWindowApi::Camera:
+            if (core->connected_api == api) {
+                core->FreeAllBuffersLocked();
+                core->connected_producer_listener = nullptr;
+                core->connected_api = NativeWindowApi::NoConnectedApi;
+                core->SignalDequeueCondition();
+                buffer_wait_event->GetWritableEvent().Signal();
+                listener = core->consumer_listener;
+            } else if (core->connected_api != NativeWindowApi::NoConnectedApi) {
+                LOG_ERROR(Service_NVFlinger, "still connected to another api (cur = {} req = {})",
+                          core->connected_api, api);
+                status = Status::BadValue;
+            }
+            break;
+        default:
+            LOG_ERROR(Service_NVFlinger, "unknown api = {}", api);
+            status = Status::BadValue;
+            break;
+        }
+    }
+
+    // Call back without lock held
+    if (listener != nullptr) {
+        listener->OnBuffersReleased();
+    }
+
+    return status;
+}
+
+Status BufferQueueProducer::SetPreallocatedBuffer(s32 slot,
+                                                  const std::shared_ptr<GraphicBuffer>& buffer) {
+    LOG_DEBUG(Service_NVFlinger, "slot {}", slot);
+
+    if (slot < 0 || slot >= BufferQueueDefs::NUM_BUFFER_SLOTS) {
+        return Status::BadValue;
+    }
+
+    std::scoped_lock lock(core->mutex);
+
+    slots[slot] = {};
+    slots[slot].graphic_buffer = buffer;
+    slots[slot].frame_number = 0;
+
+    // Most games preallocate a buffer and pass a valid buffer here. However, it is possible for
+    // this to be called with an empty buffer, Naruto Ultimate Ninja Storm is a game that does this.
+    if (buffer) {
+        slots[slot].is_preallocated = true;
+
+        core->override_max_buffer_count = core->GetPreallocatedBufferCountLocked();
+        core->default_width = buffer->Width();
+        core->default_height = buffer->Height();
+        core->default_buffer_format = buffer->Format();
+    }
+
+    core->SignalDequeueCondition();
+    buffer_wait_event->GetWritableEvent().Signal();
+
+    return Status::NoError;
+}
+
+void BufferQueueProducer::Transact(Kernel::HLERequestContext& ctx, TransactionId code, u32 flags) {
+    Status status{Status::NoError};
+    Parcel parcel_in{ctx.ReadBuffer()};
+    Parcel parcel_out{};
+
+    switch (code) {
+    case TransactionId::Connect: {
+        const auto enable_listener = parcel_in.Read<bool>();
+        const auto api = parcel_in.Read<NativeWindowApi>();
+        const auto producer_controlled_by_app = parcel_in.Read<bool>();
+
+        UNIMPLEMENTED_IF_MSG(enable_listener, "Listener is unimplemented!");
+
+        std::shared_ptr<IProducerListener> listener;
+        QueueBufferOutput output{};
+
+        status = Connect(listener, api, producer_controlled_by_app, &output);
+
+        parcel_out.Write(output);
+        break;
+    }
+    case TransactionId::SetPreallocatedBuffer: {
+        const auto slot = parcel_in.Read<s32>();
+        const auto buffer = parcel_in.ReadObject<GraphicBuffer>();
+
+        status = SetPreallocatedBuffer(slot, buffer);
+        break;
+    }
+    case TransactionId::DequeueBuffer: {
+        const auto is_async = parcel_in.Read<bool>();
+        const auto width = parcel_in.Read<u32>();
+        const auto height = parcel_in.Read<u32>();
+        const auto pixel_format = parcel_in.Read<PixelFormat>();
+        const auto usage = parcel_in.Read<u32>();
+
+        s32 slot{};
+        Fence fence{};
+
+        status = DequeueBuffer(&slot, &fence, is_async, width, height, pixel_format, usage);
+
+        parcel_out.Write(slot);
+        parcel_out.WriteObject(&fence);
+        break;
+    }
+    case TransactionId::RequestBuffer: {
+        const auto slot = parcel_in.Read<s32>();
+
+        std::shared_ptr<GraphicBuffer> buf;
+
+        status = RequestBuffer(slot, &buf);
+
+        parcel_out.WriteObject(buf);
+        break;
+    }
+    case TransactionId::QueueBuffer: {
+        const auto slot = parcel_in.Read<s32>();
+
+        QueueBufferInput input{parcel_in};
+        QueueBufferOutput output;
+
+        status = QueueBuffer(slot, input, &output);
+
+        parcel_out.Write(output);
+        break;
+    }
+    case TransactionId::Query: {
+        const auto what = parcel_in.Read<NativeWindow>();
+
+        s32 value{};
+
+        status = Query(what, &value);
+
+        parcel_out.Write(value);
+        break;
+    }
+    case TransactionId::CancelBuffer: {
+        const auto slot = parcel_in.Read<s32>();
+        const auto fence = parcel_in.ReadFlattened<Fence>();
+
+        CancelBuffer(slot, fence);
+        break;
+    }
+    case TransactionId::Disconnect: {
+        const auto api = parcel_in.Read<NativeWindowApi>();
+
+        status = Disconnect(api);
+        break;
+    }
+    case TransactionId::DetachBuffer: {
+        const auto slot = parcel_in.Read<s32>();
+
+        status = DetachBuffer(slot);
+        break;
+    }
+    case TransactionId::SetBufferCount: {
+        const auto buffer_count = parcel_in.Read<s32>();
+
+        status = SetBufferCount(buffer_count);
+        break;
+    }
+    case TransactionId::GetBufferHistory:
+        LOG_WARNING(Service_NVFlinger, "(STUBBED) called, transaction=GetBufferHistory");
+        break;
+    default:
+        ASSERT_MSG(false, "Unimplemented TransactionId {}", code);
+        break;
+    }
+
+    parcel_out.Write(status);
+
+    ctx.WriteBuffer(parcel_out.Serialize());
+}
+
+Kernel::KReadableEvent& BufferQueueProducer::GetNativeHandle() {
+    return buffer_wait_event->GetReadableEvent();
+}
+
+} // namespace Service::android

src/core/hle/service/nvflinger/buffer_queue_producer.h

@@ -0,0 +1,83 @@
+// SPDX-License-Identifier: GPL-3.0-or-later
+// Copyright 2021 yuzu Emulator Project
+// Copyright 2014 The Android Open Source Project
+// Parts of this implementation were base on:
+// https://cs.android.com/android/platform/superproject/+/android-5.1.1_r38:frameworks/native/include/gui/BufferQueueProducer.h
+
+#pragma once
+
+#include <condition_variable>
+#include <memory>
+#include <mutex>
+
+#include "common/common_funcs.h"
+#include "core/hle/service/nvdrv/nvdata.h"
+#include "core/hle/service/nvflinger/binder.h"
+#include "core/hle/service/nvflinger/buffer_queue_defs.h"
+#include "core/hle/service/nvflinger/buffer_slot.h"
+#include "core/hle/service/nvflinger/graphic_buffer_producer.h"
+#include "core/hle/service/nvflinger/pixel_format.h"
+#include "core/hle/service/nvflinger/status.h"
+#include "core/hle/service/nvflinger/window.h"
+
+namespace Kernel {
+class KernelCore;
+class KEvent;
+class KReadableEvent;
+class KWritableEvent;
+} // namespace Kernel
+
+namespace Service::KernelHelpers {
+class ServiceContext;
+} // namespace Service::KernelHelpers
+
+namespace Service::android {
+
+class BufferQueueCore;
+class IProducerListener;
+
+class BufferQueueProducer final : public IBinder {
+public:
+    explicit BufferQueueProducer(Service::KernelHelpers::ServiceContext& service_context_,
+                                 std::shared_ptr<BufferQueueCore> buffer_queue_core_);
+    ~BufferQueueProducer();
+
+    void Transact(Kernel::HLERequestContext& ctx, android::TransactionId code, u32 flags) override;
+
+    Kernel::KReadableEvent& GetNativeHandle() override;
+
+public:
+    Status RequestBuffer(s32 slot, std::shared_ptr<GraphicBuffer>* buf);
+    Status SetBufferCount(s32 buffer_count);
+    Status DequeueBuffer(s32* out_slot, android::Fence* out_fence, bool async, u32 width,
+                         u32 height, PixelFormat format, u32 usage);
+    Status DetachBuffer(s32 slot);
+    Status DetachNextBuffer(std::shared_ptr<GraphicBuffer>* out_buffer, Fence* out_fence);
+    Status AttachBuffer(s32* outSlot, const std::shared_ptr<GraphicBuffer>& buffer);
+    Status QueueBuffer(s32 slot, const QueueBufferInput& input, QueueBufferOutput* output);
+    void CancelBuffer(s32 slot, const Fence& fence);
+    Status Query(NativeWindow what, s32* out_value);
+    Status Connect(const std::shared_ptr<IProducerListener>& listener, NativeWindowApi api,
+                   bool producer_controlled_by_app, QueueBufferOutput* output);
+
+    Status Disconnect(NativeWindowApi api);
+    Status SetPreallocatedBuffer(s32 slot, const std::shared_ptr<GraphicBuffer>& buffer);
+
+private:
+    BufferQueueProducer(const BufferQueueProducer&) = delete;
+
+    Status WaitForFreeSlotThenRelock(bool async, s32* found, Status* returnFlags) const;
+
+    Kernel::KEvent* buffer_wait_event{};
+    Service::KernelHelpers::ServiceContext& service_context;
+
+    std::shared_ptr<BufferQueueCore> core;
+    BufferQueueDefs::SlotsType& slots;
+    u32 sticky_transform{};
+    std::mutex callback_mutex;
+    s32 next_callback_ticket{};
+    s32 current_callback_ticket{};
+    std::condition_variable_any callback_condition;
+};
+
+} // namespace Service::android

src/core/hle/service/nvflinger/buffer_slot.h

@@ -0,0 +1,39 @@
+// SPDX-License-Identifier: GPL-3.0-or-later
+// Copyright 2021 yuzu Emulator Project
+// Copyright 2014 The Android Open Source Project
+// Parts of this implementation were base on:
+// https://cs.android.com/android/platform/superproject/+/android-5.1.1_r38:frameworks/native/include/gui/BufferSlot.h
+
+#pragma once
+
+#include <memory>
+
+#include "common/common_types.h"
+#include "core/hle/service/nvflinger/ui/fence.h"
+
+namespace Service::android {
+
+class GraphicBuffer;
+
+enum class BufferState : u32 {
+    Free = 0,
+    Dequeued = 1,
+    Queued = 2,
+    Acquired = 3,
+};
+
+struct BufferSlot final {
+    constexpr BufferSlot() = default;
+
+    std::shared_ptr<GraphicBuffer> graphic_buffer;
+    BufferState buffer_state{BufferState::Free};
+    bool request_buffer_called{};
+    u64 frame_number{};
+    Fence fence;
+    bool acquire_called{};
+    bool needs_cleanup_on_release{};
+    bool attached_by_consumer{};
+    bool is_preallocated{};
+};
+
+} // namespace Service::android

src/core/hle/service/nvflinger/buffer_transform_flags.h

@@ -0,0 +1,25 @@
+// SPDX-License-Identifier: GPL-3.0-or-later
+// Copyright 2021 yuzu Emulator Project
+
+#pragma once
+
+#include "common/common_types.h"
+
+namespace Service::android {
+
+enum class BufferTransformFlags : u32 {
+    /// No transform flags are set
+    Unset = 0x00,
+    /// Flip source image horizontally (around the vertical axis)
+    FlipH = 0x01,
+    /// Flip source image vertically (around the horizontal axis)
+    FlipV = 0x02,
+    /// Rotate source image 90 degrees clockwise
+    Rotate90 = 0x04,
+    /// Rotate source image 180 degrees
+    Rotate180 = 0x03,
+    /// Rotate source image 270 degrees clockwise
+    Rotate270 = 0x07,
+};
+
+} // namespace Service::android

src/core/hle/service/nvflinger/consumer_base.cpp

@@ -0,0 +1,130 @@
+// SPDX-License-Identifier: GPL-3.0-or-later
+// Copyright 2021 yuzu Emulator Project
+// Copyright 2010 The Android Open Source Project
+// Parts of this implementation were base on:
+// https://cs.android.com/android/platform/superproject/+/android-5.1.1_r38:frameworks/native/libs/gui/ConsumerBase.cpp
+
+#include "common/assert.h"
+#include "common/logging/log.h"
+#include "core/hle/service/nvflinger/buffer_item.h"
+#include "core/hle/service/nvflinger/buffer_queue_consumer.h"
+#include "core/hle/service/nvflinger/buffer_queue_core.h"
+#include "core/hle/service/nvflinger/consumer_base.h"
+#include "core/hle/service/nvflinger/ui/graphic_buffer.h"
+
+namespace Service::android {
+
+ConsumerBase::ConsumerBase(std::unique_ptr<BufferQueueConsumer> consumer_)
+    : consumer{std::move(consumer_)} {}
+
+ConsumerBase::~ConsumerBase() {
+    std::scoped_lock lock(mutex);
+
+    ASSERT_MSG(is_abandoned, "consumer is not abandoned!");
+}
+
+void ConsumerBase::Connect(bool controlled_by_app) {
+    consumer->Connect(shared_from_this(), controlled_by_app);
+}
+
+void ConsumerBase::FreeBufferLocked(s32 slot_index) {
+    LOG_DEBUG(Service_NVFlinger, "slot_index={}", slot_index);
+
+    slots[slot_index].graphic_buffer = nullptr;
+    slots[slot_index].fence = Fence::NoFence();
+    slots[slot_index].frame_number = 0;
+}
+
+void ConsumerBase::OnFrameAvailable(const BufferItem& item) {
+    std::scoped_lock lock(mutex);
+    LOG_DEBUG(Service_NVFlinger, "called");
+}
+
+void ConsumerBase::OnFrameReplaced(const BufferItem& item) {
+    std::scoped_lock lock(mutex);
+    LOG_DEBUG(Service_NVFlinger, "called");
+}
+
+void ConsumerBase::OnBuffersReleased() {
+    std::scoped_lock lock(mutex);
+    LOG_DEBUG(Service_NVFlinger, "called");
+}
+
+void ConsumerBase::OnSidebandStreamChanged() {}
+
+Status ConsumerBase::AcquireBufferLocked(BufferItem* item, std::chrono::nanoseconds present_when,
+                                         u64 max_frame_number) {
+    if (is_abandoned) {
+        LOG_ERROR(Service_NVFlinger, "consumer is abandoned!");
+        return Status::NoInit;
+    }
+
+    Status err = consumer->AcquireBuffer(item, present_when, max_frame_number);
+    if (err != Status::NoError) {
+        return err;
+    }
+
+    if (item->graphic_buffer != nullptr) {
+        if (slots[item->slot].graphic_buffer != nullptr) {
+            FreeBufferLocked(item->slot);
+        }
+        slots[item->slot].graphic_buffer = item->graphic_buffer;
+    }
+
+    slots[item->slot].frame_number = item->frame_number;
+    slots[item->slot].fence = item->fence;
+
+    LOG_DEBUG(Service_NVFlinger, "slot={}", item->slot);
+
+    return Status::NoError;
+}
+
+Status ConsumerBase::AddReleaseFenceLocked(s32 slot,
+                                           const std::shared_ptr<GraphicBuffer> graphic_buffer,
+                                           const Fence& fence) {
+    LOG_DEBUG(Service_NVFlinger, "slot={}", slot);
+
+    // If consumer no longer tracks this graphic_buffer, we can safely
+    // drop this fence, as it will never be received by the producer.
+
+    if (!StillTracking(slot, graphic_buffer)) {
+        return Status::NoError;
+    }
+
+    slots[slot].fence = fence;
+
+    return Status::NoError;
+}
+
+Status ConsumerBase::ReleaseBufferLocked(s32 slot,
+                                         const std::shared_ptr<GraphicBuffer> graphic_buffer) {
+    // If consumer no longer tracks this graphic_buffer (we received a new
+    // buffer on the same slot), the buffer producer is definitely no longer
+    // tracking it.
+
+    if (!StillTracking(slot, graphic_buffer)) {
+        return Status::NoError;
+    }
+
+    LOG_DEBUG(Service_NVFlinger, "slot={}", slot);
+    Status err = consumer->ReleaseBuffer(slot, slots[slot].frame_number, slots[slot].fence);
+    if (err == Status::StaleBufferSlot) {
+        FreeBufferLocked(slot);
+    }
+
+    slots[slot].fence = Fence::NoFence();
+
+    return err;
+}
+
+bool ConsumerBase::StillTracking(s32 slot,
+                                 const std::shared_ptr<GraphicBuffer> graphic_buffer) const {
+    if (slot < 0 || slot >= BufferQueueDefs::NUM_BUFFER_SLOTS) {
+        return false;
+    }
+
+    return (slots[slot].graphic_buffer != nullptr &&
+            slots[slot].graphic_buffer->Handle() == graphic_buffer->Handle());
+}
+
+} // namespace Service::android

src/core/hle/service/nvflinger/consumer_base.h

@@ -0,0 +1,61 @@
+// SPDX-License-Identifier: GPL-3.0-or-later
+// Copyright 2021 yuzu Emulator Project
+// Copyright 2010 The Android Open Source Project
+// Parts of this implementation were base on:
+// https://cs.android.com/android/platform/superproject/+/android-5.1.1_r38:frameworks/native/include/gui/ConsumerBase.h
+
+#pragma once
+
+#include <array>
+#include <chrono>
+#include <memory>
+#include <mutex>
+
+#include "common/common_types.h"
+#include "core/hle/service/nvflinger/buffer_queue_defs.h"
+#include "core/hle/service/nvflinger/consumer_listener.h"
+#include "core/hle/service/nvflinger/status.h"
+
+namespace Service::android {
+
+class BufferItem;
+class BufferQueueConsumer;
+
+class ConsumerBase : public IConsumerListener, public std::enable_shared_from_this<ConsumerBase> {
+public:
+    void Connect(bool controlled_by_app);
+
+protected:
+    explicit ConsumerBase(std::unique_ptr<BufferQueueConsumer> consumer_);
+    virtual ~ConsumerBase();
+
+    virtual void OnFrameAvailable(const BufferItem& item) override;
+    virtual void OnFrameReplaced(const BufferItem& item) override;
+    virtual void OnBuffersReleased() override;
+    virtual void OnSidebandStreamChanged() override;
+
+    void FreeBufferLocked(s32 slot_index);
+    Status AcquireBufferLocked(BufferItem* item, std::chrono::nanoseconds present_when,
+                               u64 max_frame_number = 0);
+    Status ReleaseBufferLocked(s32 slot, const std::shared_ptr<GraphicBuffer> graphic_buffer);
+    bool StillTracking(s32 slot, const std::shared_ptr<GraphicBuffer> graphic_buffer) const;
+    Status AddReleaseFenceLocked(s32 slot, const std::shared_ptr<GraphicBuffer> graphic_buffer,
+                                 const Fence& fence);
+
+    struct Slot final {
+        std::shared_ptr<GraphicBuffer> graphic_buffer;
+        Fence fence;
+        u64 frame_number{};
+    };
+
+protected:
+    std::array<Slot, BufferQueueDefs::NUM_BUFFER_SLOTS> slots;
+
+    bool is_abandoned{};
+
+    std::unique_ptr<BufferQueueConsumer> consumer;
+
+    mutable std::mutex mutex;
+};
+
+} // namespace Service::android

src/core/hle/service/nvflinger/consumer_listener.h

@@ -0,0 +1,26 @@
+// SPDX-License-Identifier: GPL-3.0-or-later
+// Copyright 2021 yuzu Emulator Project
+// Copyright 2014 The Android Open Source Project
+// Parts of this implementation were base on:
+// https://cs.android.com/android/platform/superproject/+/android-5.1.1_r38:frameworks/native/include/gui/IConsumerListener.h
+
+#pragma once
+
+namespace Service::android {
+
+class BufferItem;
+
+/// ConsumerListener is the interface through which the BufferQueue notifies the consumer of events
+/// that the consumer may wish to react to.
+class IConsumerListener {
+public:
+    IConsumerListener() = default;
+    virtual ~IConsumerListener() = default;
+
+    virtual void OnFrameAvailable(const BufferItem& item) = 0;
+    virtual void OnFrameReplaced(const BufferItem& item) = 0;
+    virtual void OnBuffersReleased() = 0;
+    virtual void OnSidebandStreamChanged() = 0;
+};
+
+}; // namespace Service::android

src/core/hle/service/nvflinger/graphic_buffer_producer.cpp

@@ -0,0 +1,20 @@
+// SPDX-License-Identifier: GPL-3.0-or-later
+// Copyright 2021 yuzu Emulator Project
+// Copyright 2010 The Android Open Source Project
+// Parts of this implementation were base on:
+// https://cs.android.com/android/platform/superproject/+/android-5.1.1_r38:frameworks/native/libs/gui/IGraphicBufferProducer.cpp
+
+#pragma once
+
+#include "core/hle/service/nvflinger/graphic_buffer_producer.h"
+#include "core/hle/service/nvflinger/parcel.h"
+
+namespace Service::android {
+
+QueueBufferInput::QueueBufferInput(Parcel& parcel) {
+    parcel.ReadFlattened(*this);
+}
+
+QueueBufferOutput::QueueBufferOutput() = default;
+
+} // namespace Service::android

src/core/hle/service/nvflinger/graphic_buffer_producer.h

@@ -0,0 +1,76 @@
+// SPDX-License-Identifier: GPL-3.0-or-later
+// Copyright 2021 yuzu Emulator Project
+// Copyright 2010 The Android Open Source Project
+// Parts of this implementation were base on:
+// https://cs.android.com/android/platform/superproject/+/android-5.1.1_r38:frameworks/native/include/gui/IGraphicBufferProducer.h
+
+#pragma once
+
+#include "common/common_funcs.h"
+#include "common/common_types.h"
+#include "common/math_util.h"
+#include "core/hle/service/nvflinger/ui/fence.h"
+#include "core/hle/service/nvflinger/window.h"
+
+namespace Service::android {
+
+class Parcel;
+
+#pragma pack(push, 1)
+struct QueueBufferInput final {
+    explicit QueueBufferInput(Parcel& parcel);
+
+    void Deflate(s64* timestamp_, bool* is_auto_timestamp_, Common::Rectangle<s32>* crop_,
+                 NativeWindowScalingMode* scaling_mode_, NativeWindowTransform* transform_,
+                 u32* sticky_transform_, bool* async_, s32* swap_interval_, Fence* fence_) const {
+        *timestamp_ = timestamp;
+        *is_auto_timestamp_ = static_cast<bool>(is_auto_timestamp);
+        *crop_ = crop;
+        *scaling_mode_ = scaling_mode;
+        *transform_ = transform;
+        *sticky_transform_ = sticky_transform;
+        *async_ = static_cast<bool>(async);
+        *swap_interval_ = swap_interval;
+        *fence_ = fence;
+    }
+
+private:
+    s64 timestamp{};
+    s32 is_auto_timestamp{};
+    Common::Rectangle<s32> crop{};
+    NativeWindowScalingMode scaling_mode{};
+    NativeWindowTransform transform{};
+    u32 sticky_transform{};
+    s32 async{};
+    s32 swap_interval{};
+    Fence fence{};
+};
+#pragma pack(pop)
+static_assert(sizeof(QueueBufferInput) == 84, "QueueBufferInput has wrong size");
+
+struct QueueBufferOutput final {
+    QueueBufferOutput();
+
+    void Deflate(u32* width_, u32* height_, u32* transform_hint_, u32* num_pending_buffers_) const {
+        *width_ = width;
+        *height_ = height;
+        *transform_hint_ = transform_hint;
+        *num_pending_buffers_ = num_pending_buffers;
+    }
+
+    void Inflate(u32 width_, u32 height_, u32 transform_hint_, u32 num_pending_buffers_) {
+        width = width_;
+        height = height_;
+        transform_hint = transform_hint_;
+        num_pending_buffers = num_pending_buffers_;
+    }
+
+private:
+    u32 width{};
+    u32 height{};
+    u32 transform_hint{};
+    u32 num_pending_buffers{};
+};
+static_assert(sizeof(QueueBufferOutput) == 16, "QueueBufferOutput has wrong size");
+
+} // namespace Service::android

src/core/hle/service/nvflinger/hos_binder_driver_server.cpp

@@ -0,0 +1,36 @@
+// SPDX-License-Identifier: GPL-3.0-or-later
+// Copyright 2021 yuzu Emulator Project
+
+#include <mutex>
+
+#include "common/common_types.h"
+#include "core/hle/service/nvflinger/hos_binder_driver_server.h"
+
+namespace Service::NVFlinger {
+
+HosBinderDriverServer::HosBinderDriverServer(Core::System& system_)
+    : service_context(system_, "HosBinderDriverServer") {}
+
+HosBinderDriverServer::~HosBinderDriverServer() {}
+
+u64 HosBinderDriverServer::RegisterProducer(std::unique_ptr<android::IBinder>&& binder) {
+    std::lock_guard lk{lock};
+
+    last_id++;
+
+    producers[last_id] = std::move(binder);
+
+    return last_id;
+}
+
+android::IBinder* HosBinderDriverServer::TryGetProducer(u64 id) {
+    std::lock_guard lk{lock};
+
+    if (auto search = producers.find(id); search != producers.end()) {
+        return search->second.get();
+    }
+
+    return {};
+}
+
+} // namespace Service::NVFlinger

src/core/hle/service/nvflinger/hos_binder_driver_server.h

@@ -0,0 +1,37 @@
+// SPDX-License-Identifier: GPL-3.0-or-later
+// Copyright 2021 yuzu Emulator Project
+
+#pragma once
+
+#include <memory>
+#include <mutex>
+#include <unordered_map>
+
+#include "common/common_types.h"
+#include "core/hle/service/kernel_helpers.h"
+#include "core/hle/service/nvflinger/binder.h"
+
+namespace Core {
+class System;
+}
+
+namespace Service::NVFlinger {
+
+class HosBinderDriverServer final {
+public:
+    explicit HosBinderDriverServer(Core::System& system_);
+    ~HosBinderDriverServer();
+
+    u64 RegisterProducer(std::unique_ptr<android::IBinder>&& binder);
+
+    android::IBinder* TryGetProducer(u64 id);
+
+private:
+    KernelHelpers::ServiceContext service_context;
+
+    std::unordered_map<u64, std::unique_ptr<android::IBinder>> producers;
+    std::mutex lock;
+    u64 last_id{};
+};
+
+} // namespace Service::NVFlinger

src/core/hle/service/nvflinger/nvflinger.cpp

@@ -1,6 +1,5 @@
-// Copyright 2018 yuzu emulator team
-// Licensed under GPLv2 or any later version
-// Refer to the license.txt file included.
+// SPDX-License-Identifier: GPL-3.0-or-later
+// Copyright 2021 yuzu Emulator Project
 
 #include <algorithm>
 #include <optional>
@@ -16,8 +15,11 @@
 #include "core/hle/kernel/k_readable_event.h"
 #include "core/hle/service/nvdrv/devices/nvdisp_disp0.h"
 #include "core/hle/service/nvdrv/nvdrv.h"
-#include "core/hle/service/nvflinger/buffer_queue.h"
+#include "core/hle/service/nvflinger/buffer_item_consumer.h"
+#include "core/hle/service/nvflinger/buffer_queue_core.h"
+#include "core/hle/service/nvflinger/hos_binder_driver_server.h"
 #include "core/hle/service/nvflinger/nvflinger.h"
+#include "core/hle/service/nvflinger/ui/graphic_buffer.h"
 #include "core/hle/service/vi/display/vi_display.h"
 #include "core/hle/service/vi/layer/vi_layer.h"
 #include "video_core/gpu.h"
@@ -53,13 +55,14 @@ void NVFlinger::SplitVSync(std::stop_token stop_token) {
     }
 }
 
-NVFlinger::NVFlinger(Core::System& system_)
-    : system(system_), service_context(system_, "nvflinger") {
-    displays.emplace_back(0, "Default", service_context, system);
-    displays.emplace_back(1, "External", service_context, system);
-    displays.emplace_back(2, "Edid", service_context, system);
-    displays.emplace_back(3, "Internal", service_context, system);
-    displays.emplace_back(4, "Null", service_context, system);
+NVFlinger::NVFlinger(Core::System& system_, HosBinderDriverServer& hos_binder_driver_server_)
+    : system(system_), service_context(system_, "nvflinger"),
+      hos_binder_driver_server(hos_binder_driver_server_) {
+    displays.emplace_back(0, "Default", hos_binder_driver_server, service_context, system);
+    displays.emplace_back(1, "External", hos_binder_driver_server, service_context, system);
+    displays.emplace_back(2, "Edid", hos_binder_driver_server, service_context, system);
+    displays.emplace_back(3, "Internal", hos_binder_driver_server, service_context, system);
+    displays.emplace_back(4, "Null", hos_binder_driver_server, service_context, system);
     guard = std::make_shared<std::mutex>();
 
     // Schedule the screen composition events
@@ -83,12 +86,15 @@ NVFlinger::NVFlinger(Core::System& system_)
 }
 
 NVFlinger::~NVFlinger() {
-    for (auto& buffer_queue : buffer_queues) {
-        buffer_queue->Disconnect();
-    }
     if (!system.IsMulticore()) {
         system.CoreTiming().UnscheduleEvent(composition_event, 0);
     }
+
+    for (auto& display : displays) {
+        for (size_t layer = 0; layer < display.GetNumLayers(); ++layer) {
+            display.GetLayer(layer).Core().NotifyShutdown();
+        }
+    }
 }
 
 void NVFlinger::SetNVDrvInstance(std::shared_ptr<Nvidia::Module> instance) {
@@ -125,10 +131,8 @@ std::optional<u64> NVFlinger::CreateLayer(u64 display_id) {
 }
 
 void NVFlinger::CreateLayerAtId(VI::Display& display, u64 layer_id) {
-    const u32 buffer_queue_id = next_buffer_queue_id++;
-    buffer_queues.emplace_back(
-        std::make_unique<BufferQueue>(system.Kernel(), buffer_queue_id, layer_id, service_context));
-    display.CreateLayer(layer_id, *buffer_queues.back());
+    const auto buffer_id = next_buffer_queue_id++;
+    display.CreateLayer(layer_id, buffer_id);
 }
 
 void NVFlinger::CloseLayer(u64 layer_id) {
@@ -147,7 +151,7 @@ std::optional<u32> NVFlinger::FindBufferQueueId(u64 display_id, u64 layer_id) {
         return std::nullopt;
     }
 
-    return layer->GetBufferQueue().GetId();
+    return layer->GetBinderId();
 }
 
 Kernel::KReadableEvent* NVFlinger::FindVsyncEvent(u64 display_id) {
@@ -161,18 +165,6 @@ Kernel::KReadableEvent* NVFlinger::FindVsyncEvent(u64 display_id) {
     return &display->GetVSyncEvent();
 }
 
-BufferQueue* NVFlinger::FindBufferQueue(u32 id) {
-    const auto lock_guard = Lock();
-    const auto itr = std::find_if(buffer_queues.begin(), buffer_queues.end(),
-                                  [id](const auto& queue) { return queue->GetId() == id; });
-
-    if (itr == buffer_queues.end()) {
-        return nullptr;
-    }
-
-    return itr->get();
-}
-
 VI::Display* NVFlinger::FindDisplay(u64 display_id) {
     const auto itr =
         std::find_if(displays.begin(), displays.end(),
@@ -246,23 +238,22 @@ void NVFlinger::Compose() {
 
         // TODO(Subv): Support more than 1 layer.
         VI::Layer& layer = display.GetLayer(0);
-        auto& buffer_queue = layer.GetBufferQueue();
 
-        // Search for a queued buffer and acquire it
-        auto buffer = buffer_queue.AcquireBuffer();
+        android::BufferItem buffer{};
+        const auto status = layer.GetConsumer().AcquireBuffer(&buffer, {}, false);
 
-        if (!buffer) {
+        if (status != android::Status::NoError) {
             continue;
         }
 
-        const auto& igbp_buffer = buffer->get().igbp_buffer;
+        const auto& igbp_buffer = *buffer.graphic_buffer;
 
         if (!system.IsPoweredOn()) {
             return; // We are likely shutting down
         }
 
         auto& gpu = system.GPU();
-        const auto& multi_fence = buffer->get().multi_fence;
+        const auto& multi_fence = buffer.fence;
         guard->unlock();
         for (u32 fence_id = 0; fence_id < multi_fence.num_fences; fence_id++) {
             const auto& fence = multi_fence.fences[fence_id];
@@ -278,12 +269,18 @@ void NVFlinger::Compose() {
         auto nvdisp = nvdrv->GetDevice<Nvidia::Devices::nvdisp_disp0>("/dev/nvdisp_disp0");
         ASSERT(nvdisp);
 
-        nvdisp->flip(igbp_buffer.gpu_buffer_id, igbp_buffer.offset, igbp_buffer.external_format,
-                     igbp_buffer.width, igbp_buffer.height, igbp_buffer.stride,
-                     buffer->get().transform, buffer->get().crop_rect);
+        Common::Rectangle<int> crop_rect{
+            static_cast<int>(buffer.crop.Left()), static_cast<int>(buffer.crop.Top()),
+            static_cast<int>(buffer.crop.Right()), static_cast<int>(buffer.crop.Bottom())};
 
-        swap_interval = buffer->get().swap_interval;
-        buffer_queue.ReleaseBuffer(buffer->get().slot);
+        nvdisp->flip(igbp_buffer.BufferId(), igbp_buffer.Offset(), igbp_buffer.ExternalFormat(),
+                     igbp_buffer.Width(), igbp_buffer.Height(), igbp_buffer.Stride(),
+                     static_cast<android::BufferTransformFlags>(buffer.transform), crop_rect);
+
+        swap_interval = buffer.swap_interval;
+
+        auto fence = android::Fence::NoFence();
+        layer.GetConsumer().ReleaseBuffer(buffer, fence);
     }
 }
 

src/core/hle/service/nvflinger/nvflinger.h

@@ -1,6 +1,5 @@
-// Copyright 2018 yuzu emulator team
-// Licensed under GPLv2 or any later version
-// Refer to the license.txt file included.
+// SPDX-License-Identifier: GPL-3.0-or-later
+// Copyright 2021 yuzu Emulator Project
 
 #pragma once
 
@@ -37,13 +36,16 @@ class Display;
 class Layer;
 } // namespace Service::VI
 
-namespace Service::NVFlinger {
+namespace Service::android {
+class BufferQueueCore;
+class BufferQueueProducer;
+} // namespace Service::android
 
-class BufferQueue;
+namespace Service::NVFlinger {
 
 class NVFlinger final {
 public:
-    explicit NVFlinger(Core::System& system_);
+    explicit NVFlinger(Core::System& system_, HosBinderDriverServer& hos_binder_driver_server_);
     ~NVFlinger();
 
     /// Sets the NVDrv module instance to use to send buffers to the GPU.
@@ -72,15 +74,18 @@ public:
     /// If an invalid display ID is provided, then nullptr is returned.
     [[nodiscard]] Kernel::KReadableEvent* FindVsyncEvent(u64 display_id);
 
-    /// Obtains a buffer queue identified by the ID.
-    [[nodiscard]] BufferQueue* FindBufferQueue(u32 id);
-
     /// Performs a composition request to the emulated nvidia GPU and triggers the vsync events when
     /// finished.
     void Compose();
 
     [[nodiscard]] s64 GetNextTicks() const;
 
+private:
+    struct Layer {
+        std::unique_ptr<android::BufferQueueCore> core;
+        std::unique_ptr<android::BufferQueueProducer> producer;
+    };
+
 private:
     [[nodiscard]] std::unique_lock<std::mutex> Lock() const {
         return std::unique_lock{*guard};
@@ -111,7 +116,6 @@ private:
     std::shared_ptr<Nvidia::Module> nvdrv;
 
     std::list<VI::Display> displays;
-    std::vector<std::unique_ptr<BufferQueue>> buffer_queues;
 
     /// Id to use for the next layer that is created, this counter is shared among all displays.
     u64 next_layer_id = 1;
@@ -131,6 +135,8 @@ private:
     std::jthread vsync_thread;
 
     KernelHelpers::ServiceContext service_context;
+
+    HosBinderDriverServer& hos_binder_driver_server;
 };
 
 } // namespace Service::NVFlinger

src/core/hle/service/nvflinger/parcel.h

@@ -0,0 +1,172 @@
+// SPDX-License-Identifier: GPL-3.0-or-later
+// Copyright 2021 yuzu Emulator Project
+
+#pragma once
+
+#include <memory>
+#include <vector>
+
+#include "common/alignment.h"
+#include "common/assert.h"
+#include "common/common_types.h"
+
+namespace Service::android {
+
+class Parcel final {
+public:
+    static constexpr std::size_t DefaultBufferSize = 0x40;
+
+    Parcel() : buffer(DefaultBufferSize) {}
+
+    template <typename T>
+    explicit Parcel(const T& out_data) : buffer(DefaultBufferSize) {
+        Write(out_data);
+    }
+
+    explicit Parcel(std::vector<u8> in_data) : buffer(std::move(in_data)) {
+        DeserializeHeader();
+        [[maybe_unused]] const std::u16string token = ReadInterfaceToken();
+    }
+
+    template <typename T>
+    void Read(T& val) {
+        static_assert(std::is_trivially_copyable_v<T>, "T must be trivially copyable.");
+        ASSERT(read_index + sizeof(T) <= buffer.size());
+
+        std::memcpy(&val, buffer.data() + read_index, sizeof(T));
+        read_index += sizeof(T);
+        read_index = Common::AlignUp(read_index, 4);
+    }
+
+    template <typename T>
+    T Read() {
+        T val;
+        Read(val);
+        return val;
+    }
+
+    template <typename T>
+    void ReadFlattened(T& val) {
+        const auto flattened_size = Read<s64>();
+        ASSERT(sizeof(T) == flattened_size);
+        Read(val);
+    }
+
+    template <typename T>
+    T ReadFlattened() {
+        T val;
+        ReadFlattened(val);
+        return val;
+    }
+
+    template <typename T>
+    T ReadUnaligned() {
+        static_assert(std::is_trivially_copyable_v<T>, "T must be trivially copyable.");
+        ASSERT(read_index + sizeof(T) <= buffer.size());
+
+        T val;
+        std::memcpy(&val, buffer.data() + read_index, sizeof(T));
+        read_index += sizeof(T);
+        return val;
+    }
+
+    template <typename T>
+    const std::shared_ptr<T> ReadObject() {
+        static_assert(std::is_trivially_copyable_v<T>, "T must be trivially copyable.");
+
+        const auto is_valid{Read<bool>()};
+
+        if (is_valid) {
+            auto result = std::make_shared<T>();
+            ReadFlattened(*result);
+            return result;
+        }
+
+        return {};
+    }
+
+    std::u16string ReadInterfaceToken() {
+        [[maybe_unused]] const u32 unknown = Read<u32>();
+        const u32 length = Read<u32>();
+
+        std::u16string token;
+        token.reserve(length + 1);
+
+        for (u32 ch = 0; ch < length + 1; ++ch) {
+            token.push_back(ReadUnaligned<u16>());
+        }
+
+        read_index = Common::AlignUp(read_index, 4);
+
+        return token;
+    }
+
+    template <typename T>
+    void Write(const T& val) {
+        static_assert(std::is_trivially_copyable_v<T>, "T must be trivially copyable.");
+
+        if (buffer.size() < write_index + sizeof(T)) {
+            buffer.resize(buffer.size() + sizeof(T) + DefaultBufferSize);
+        }
+
+        std::memcpy(buffer.data() + write_index, &val, sizeof(T));
+        write_index += sizeof(T);
+        write_index = Common::AlignUp(write_index, 4);
+    }
+
+    template <typename T>
+    void WriteObject(const T* ptr) {
+        static_assert(std::is_trivially_copyable_v<T>, "T must be trivially copyable.");
+
+        if (!ptr) {
+            Write<u32>(0);
+            return;
+        }
+
+        Write<u32>(1);
+        Write<s64>(sizeof(T));
+        Write(*ptr);
+    }
+
+    template <typename T>
+    void WriteObject(const std::shared_ptr<T> ptr) {
+        WriteObject(ptr.get());
+    }
+
+    void DeserializeHeader() {
+        ASSERT(buffer.size() > sizeof(Header));
+
+        Header header{};
+        std::memcpy(&header, buffer.data(), sizeof(Header));
+
+        read_index = header.data_offset;
+    }
+
+    std::vector<u8> Serialize() const {
+        ASSERT(read_index == 0);
+
+        Header header{};
+        header.data_size = static_cast<u32>(write_index - sizeof(Header));
+        header.data_offset = sizeof(Header);
+        header.objects_size = 4;
+        header.objects_offset = static_cast<u32>(sizeof(Header) + header.data_size);
+        std::memcpy(buffer.data(), &header, sizeof(Header));
+
+        return buffer;
+    }
+
+private:
+    struct Header {
+        u32 data_size;
+        u32 data_offset;
+        u32 objects_size;
+        u32 objects_offset;
+    };
+    static_assert(sizeof(Header) == 16, "ParcelHeader has wrong size");
+
+    mutable std::vector<u8> buffer;
+    std::size_t read_index = 0;
+    std::size_t write_index = sizeof(Header);
+};
+
+} // namespace Service::android

src/core/hle/service/nvflinger/pixel_format.h

@@ -0,0 +1,21 @@
+// SPDX-License-Identifier: GPL-3.0-or-later
+// Copyright 2021 yuzu Emulator Project
+
+#pragma once
+
+#include "common/common_types.h"
+
+namespace Service::android {
+
+enum class PixelFormat : u32 {
+    NoFormat = 0,
+    Rgba8888 = 1,
+    Rgbx8888 = 2,
+    Rgb888 = 3,
+    Rgb565 = 4,
+    Bgra8888 = 5,
+    Rgba5551 = 6,
+    Rgba4444 = 7,
+};
+
+} // namespace Service::android

src/core/hle/service/nvflinger/producer_listener.h

@@ -0,0 +1,16 @@
+// SPDX-License-Identifier: GPL-3.0-or-later
+// Copyright 2021 yuzu Emulator Project
+// Copyright 2014 The Android Open Source Project
+// Parts of this implementation were base on:
+// https://cs.android.com/android/platform/superproject/+/android-5.1.1_r38:frameworks/native/include/gui/IProducerListener.h
+
+#pragma once
+
+namespace Service::android {
+
+class IProducerListener {
+public:
+    virtual void OnBufferReleased() = 0;
+};
+
+} // namespace Service::android

src/core/hle/service/nvflinger/status.h

@@ -0,0 +1,28 @@
+// SPDX-License-Identifier: GPL-3.0-or-later
+// Copyright 2021 yuzu Emulator Project
+
+#pragma once
+
+#include "common/common_funcs.h"
+#include "common/common_types.h"
+
+namespace Service::android {
+
+enum class Status : s32 {
+    None = 0,
+    NoError = 0,
+    StaleBufferSlot = 1,
+    NoBufferAvailable = 2,
+    PresentLater = 3,
+    WouldBlock = -11,
+    NoMemory = -12,
+    Busy = -16,
+    NoInit = -19,
+    BadValue = -22,
+    InvalidOperation = -37,
+    BufferNeedsReallocation = 1,
+    ReleaseAllBuffers = 2,
+};
+DECLARE_ENUM_FLAG_OPERATORS(Status);
+
+} // namespace Service::android

src/core/hle/service/nvflinger/ui/fence.h

@@ -0,0 +1,32 @@
+// SPDX-License-Identifier: GPL-3.0-or-later
+// Copyright 2021 yuzu Emulator Project
+// Copyright 2012 The Android Open Source Project
+// Parts of this implementation were base on:
+// https://cs.android.com/android/platform/superproject/+/android-5.1.1_r38:frameworks/native/include/ui/Fence.h
+
+#pragma once
+
+#include <array>
+
+#include "common/common_types.h"
+#include "core/hle/service/nvdrv/nvdata.h"
+
+namespace Service::android {
+
+class Fence {
+public:
+    constexpr Fence() = default;
+
+    static constexpr Fence NoFence() {
+        Fence fence;
+        fence.fences[0].id = -1;
+        return fence;
+    }
+
+public:
+    u32 num_fences{};
+    std::array<Service::Nvidia::NvFence, 4> fences{};
+};
+static_assert(sizeof(Fence) == 36, "Fence has wrong size");
+
+} // namespace Service::android

src/core/hle/service/nvflinger/ui/graphic_buffer.h

@@ -0,0 +1,100 @@
+// SPDX-License-Identifier: GPL-3.0-or-later
+// Copyright 2021 yuzu Emulator Project
+// Copyright 2007 The Android Open Source Project
+// Parts of this implementation were base on:
+// https://cs.android.com/android/platform/superproject/+/android-5.1.1_r38:frameworks/native/include/ui/GraphicBuffer.h
+
+#pragma once
+
+#include "common/common_funcs.h"
+#include "common/common_types.h"
+#include "core/hle/service/nvflinger/pixel_format.h"
+
+namespace Service::android {
+
+class GraphicBuffer final {
+public:
+    constexpr GraphicBuffer() = default;
+
+    constexpr GraphicBuffer(u32 width_, u32 height_, PixelFormat format_, u32 usage_)
+        : width{static_cast<s32>(width_)}, height{static_cast<s32>(height_)}, format{format_},
+          usage{static_cast<s32>(usage_)} {}
+
+    constexpr u32 Width() const {
+        return static_cast<u32>(width);
+    }
+
+    constexpr u32 Height() const {
+        return static_cast<u32>(height);
+    }
+
+    constexpr u32 Stride() const {
+        return static_cast<u32>(stride);
+    }
+
+    constexpr u32 Usage() const {
+        return static_cast<u32>(usage);
+    }
+
+    constexpr PixelFormat Format() const {
+        return format;
+    }
+
+    constexpr u32 BufferId() const {
+        return buffer_id;
+    }
+
+    constexpr PixelFormat ExternalFormat() const {
+        return external_format;
+    }
+
+    constexpr u32 Handle() const {
+        return handle;
+    }
+
+    constexpr u32 Offset() const {
+        return offset;
+    }
+
+    constexpr bool NeedsReallocation(u32 width_, u32 height_, PixelFormat format_,
+                                     u32 usage_) const {
+        if (static_cast<s32>(width_) != width) {
+            return true;
+        }
+
+        if (static_cast<s32>(height_) != height) {
+            return true;
+        }
+
+        if (format_ != format) {
+            return true;
+        }
+
+        if ((static_cast<u32>(usage) & usage_) != usage_) {
+            return true;
+        }
+
+        return false;
+    }
+
+private:
+    u32 magic{};
+    s32 width{};
+    s32 height{};
+    s32 stride{};
+    PixelFormat format{};
+    s32 usage{};
+    INSERT_PADDING_WORDS(1);
+    u32 index{};
+    INSERT_PADDING_WORDS(3);
+    u32 buffer_id{};
+    INSERT_PADDING_WORDS(6);
+    PixelFormat external_format{};
+    INSERT_PADDING_WORDS(10);
+    u32 handle{};
+    u32 offset{};
+    INSERT_PADDING_WORDS(60);
+};
+static_assert(sizeof(GraphicBuffer) == 0x16C, "GraphicBuffer has wrong size");
+
+} // namespace Service::android

src/core/hle/service/nvflinger/window.h

@@ -0,0 +1,53 @@
+// SPDX-License-Identifier: GPL-3.0-or-later
+// Copyright 2021 yuzu Emulator Project
+
+#pragma once
+
+#include "common/common_funcs.h"
+#include "common/common_types.h"
+
+namespace Service::android {
+
+/// Attributes queryable with Query
+enum class NativeWindow : s32 {
+    Width = 0,
+    Height = 1,
+    Format = 2,
+    MinUndequeedBuffers = 3,
+    QueuesToWindowComposer = 4,
+    ConcreteType = 5,
+    DefaultWidth = 6,
+    DefaultHeight = 7,
+    TransformHint = 8,
+    ConsumerRunningBehind = 9,
+    ConsumerUsageBits = 10,
+    StickyTransform = 11,
+    DefaultDataSpace = 12,
+    BufferAge = 13,
+};
+
+/// Parameter for Connect/Disconnect
+enum class NativeWindowApi : s32 {
+    NoConnectedApi = 0,
+    Egl = 1,
+    Cpu = 2,
+    Media = 3,
+    Camera = 4,
+};
+
+/// Scaling mode parameter for QueueBuffer
+enum class NativeWindowScalingMode : s32 {
+    Freeze = 0,
+    ScaleToWindow = 1,
+    ScaleCrop = 2,
+    NoScaleCrop = 3,
+};
+
+/// Transform parameter for QueueBuffer
+enum class NativeWindowTransform : u32 {
+    None = 0x0,
+    InverseDisplay = 0x08,
+};
+DECLARE_ENUM_FLAG_OPERATORS(NativeWindowTransform);
+
+} // namespace Service::android

src/core/hle/service/service.cpp

@@ -49,6 +49,7 @@
 #include "core/hle/service/npns/npns.h"
 #include "core/hle/service/ns/ns.h"
 #include "core/hle/service/nvdrv/nvdrv.h"
+#include "core/hle/service/nvflinger/hos_binder_driver_server.h"
 #include "core/hle/service/nvflinger/nvflinger.h"
 #include "core/hle/service/olsc/olsc.h"
 #include "core/hle/service/pcie/pcie.h"
@@ -230,7 +231,8 @@ ResultCode ServiceFrameworkBase::HandleSyncRequest(Kernel::KServerSession& sessi
 
 /// Initialize Services
 Services::Services(std::shared_ptr<SM::ServiceManager>& sm, Core::System& system)
-    : nv_flinger{std::make_unique<NVFlinger::NVFlinger>(system)} {
+    : hos_binder_driver_server{std::make_unique<NVFlinger::HosBinderDriverServer>(system)},
+      nv_flinger{std::make_unique<NVFlinger::NVFlinger>(system, *hos_binder_driver_server)} {
 
     // NVFlinger needs to be accessed by several services like Vi and AppletOE so we instantiate it
     // here and pass it into the respective InstallInterfaces functions.
@@ -290,7 +292,7 @@ Services::Services(std::shared_ptr<SM::ServiceManager>& sm, Core::System& system
     SSL::InstallInterfaces(*sm, system);
     Time::InstallInterfaces(system);
     USB::InstallInterfaces(*sm, system);
-    VI::InstallInterfaces(*sm, system, *nv_flinger);
+    VI::InstallInterfaces(*sm, system, *nv_flinger, *hos_binder_driver_server);
     WLAN::InstallInterfaces(*sm, system);
 }
 

src/core/hle/service/service.h

@@ -33,8 +33,9 @@ class FileSystemController;
 }
 
 namespace NVFlinger {
+class HosBinderDriverServer;
 class NVFlinger;
-}
+} // namespace NVFlinger
 
 namespace SM {
 class ServiceManager;
@@ -236,6 +237,7 @@ public:
     ~Services();
 
 private:
+    std::unique_ptr<NVFlinger::HosBinderDriverServer> hos_binder_driver_server;
     std::unique_ptr<NVFlinger::NVFlinger> nv_flinger;
 };
 

src/core/hle/service/vi/display/vi_display.cpp

@@ -13,14 +13,34 @@
 #include "core/hle/kernel/k_readable_event.h"
 #include "core/hle/kernel/k_writable_event.h"
 #include "core/hle/service/kernel_helpers.h"
+#include "core/hle/service/nvflinger/buffer_item_consumer.h"
+#include "core/hle/service/nvflinger/buffer_queue_consumer.h"
+#include "core/hle/service/nvflinger/buffer_queue_core.h"
+#include "core/hle/service/nvflinger/buffer_queue_producer.h"
+#include "core/hle/service/nvflinger/hos_binder_driver_server.h"
 #include "core/hle/service/vi/display/vi_display.h"
 #include "core/hle/service/vi/layer/vi_layer.h"
 
 namespace Service::VI {
 
-Display::Display(u64 id, std::string name_, KernelHelpers::ServiceContext& service_context_,
-                 Core::System& system_)
-    : display_id{id}, name{std::move(name_)}, service_context{service_context_} {
+struct BufferQueue {
+    std::shared_ptr<android::BufferQueueCore> core;
+    std::unique_ptr<android::BufferQueueProducer> producer;
+    std::unique_ptr<android::BufferQueueConsumer> consumer;
+};
+
+static BufferQueue CreateBufferQueue(KernelHelpers::ServiceContext& service_context) {
+    auto buffer_queue_core = std::make_shared<android::BufferQueueCore>();
+    return {buffer_queue_core,
+            std::make_unique<android::BufferQueueProducer>(service_context, buffer_queue_core),
+            std::make_unique<android::BufferQueueConsumer>(buffer_queue_core)};
+}
+
+Display::Display(u64 id, std::string name_,
+                 NVFlinger::HosBinderDriverServer& hos_binder_driver_server_,
+                 KernelHelpers::ServiceContext& service_context_, Core::System& system_)
+    : display_id{id}, name{std::move(name_)}, hos_binder_driver_server{hos_binder_driver_server_},
+      service_context{service_context_} {
     vsync_event = service_context.CreateEvent(fmt::format("Display VSync Event {}", id));
 }
 
@@ -44,21 +64,29 @@ void Display::SignalVSyncEvent() {
     vsync_event->GetWritableEvent().Signal();
 }
 
-void Display::CreateLayer(u64 layer_id, NVFlinger::BufferQueue& buffer_queue) {
-    // TODO(Subv): Support more than 1 layer.
+void Display::CreateLayer(u64 layer_id, u32 binder_id) {
     ASSERT_MSG(layers.empty(), "Only one layer is supported per display at the moment");
 
-    layers.emplace_back(std::make_shared<Layer>(layer_id, buffer_queue));
+    auto [core, producer, consumer] = CreateBufferQueue(service_context);
+
+    auto buffer_item_consumer = std::make_shared<android::BufferItemConsumer>(std::move(consumer));
+    buffer_item_consumer->Connect(false);
+
+    layers.emplace_back(std::make_unique<Layer>(layer_id, binder_id, *core, *producer,
+                                                std::move(buffer_item_consumer)));
+
+    hos_binder_driver_server.RegisterProducer(std::move(producer));
 }
 
 void Display::CloseLayer(u64 layer_id) {
-    std::erase_if(layers, [layer_id](const auto& layer) { return layer->GetID() == layer_id; });
+    std::erase_if(layers,
+                  [layer_id](const auto& layer) { return layer->GetLayerId() == layer_id; });
 }
 
 Layer* Display::FindLayer(u64 layer_id) {
     const auto itr =
-        std::find_if(layers.begin(), layers.end(), [layer_id](const std::shared_ptr<Layer>& layer) {
-            return layer->GetID() == layer_id;
+        std::find_if(layers.begin(), layers.end(), [layer_id](const std::unique_ptr<Layer>& layer) {
+            return layer->GetLayerId() == layer_id;
         });
 
     if (itr == layers.end()) {
@@ -70,8 +98,8 @@ Layer* Display::FindLayer(u64 layer_id) {
 
 const Layer* Display::FindLayer(u64 layer_id) const {
     const auto itr =
-        std::find_if(layers.begin(), layers.end(), [layer_id](const std::shared_ptr<Layer>& layer) {
-            return layer->GetID() == layer_id;
+        std::find_if(layers.begin(), layers.end(), [layer_id](const std::unique_ptr<Layer>& layer) {
+            return layer->GetLayerId() == layer_id;
         });
 
     if (itr == layers.end()) {

src/core/hle/service/vi/display/vi_display.h

@@ -15,12 +15,17 @@ namespace Kernel {
 class KEvent;
 }
 
-namespace Service::NVFlinger {
-class BufferQueue;
+namespace Service::android {
+class BufferQueueProducer;
 }
+
 namespace Service::KernelHelpers {
 class ServiceContext;
-} // namespace Service::KernelHelpers
+}
+
+namespace Service::NVFlinger {
+class HosBinderDriverServer;
+}
 
 namespace Service::VI {
 
@@ -35,12 +40,13 @@ public:
     /// Constructs a display with a given unique ID and name.
     ///
     /// @param id The unique ID for this display.
+    /// @param hos_binder_driver_server_ NVFlinger HOSBinderDriver server instance.
     /// @param service_context_ The ServiceContext for the owning service.
     /// @param name_ The name for this display.
     /// @param system_ The global system instance.
     ///
-    Display(u64 id, std::string name_, KernelHelpers::ServiceContext& service_context_,
-            Core::System& system_);
+    Display(u64 id, std::string name_, NVFlinger::HosBinderDriverServer& hos_binder_driver_server_,
+            KernelHelpers::ServiceContext& service_context_, Core::System& system_);
     ~Display();
 
     /// Gets the unique ID assigned to this display.
@@ -64,6 +70,10 @@ public:
     /// Gets a layer for this display based off an index.
     const Layer& GetLayer(std::size_t index) const;
 
+    std::size_t GetNumLayers() const {
+        return layers.size();
+    }
+
     /// Gets the readable vsync event.
     Kernel::KReadableEvent& GetVSyncEvent();
 
@@ -72,10 +82,10 @@ public:
 
     /// Creates and adds a layer to this display with the given ID.
     ///
-    /// @param layer_id     The ID to assign to the created layer.
-    /// @param buffer_queue The buffer queue for the layer instance to use.
+    /// @param layer_id The ID to assign to the created layer.
+    /// @param binder_id The ID assigned to the buffer queue.
     ///
-    void CreateLayer(u64 layer_id, NVFlinger::BufferQueue& buffer_queue);
+    void CreateLayer(u64 layer_id, u32 binder_id);
 
     /// Closes and removes a layer from this display with the given ID.
     ///
@@ -104,9 +114,10 @@ public:
 private:
     u64 display_id;
     std::string name;
+    NVFlinger::HosBinderDriverServer& hos_binder_driver_server;
     KernelHelpers::ServiceContext& service_context;
 
-    std::vector<std::shared_ptr<Layer>> layers;
+    std::vector<std::unique_ptr<Layer>> layers;
     Kernel::KEvent* vsync_event{};
 };