renderer_opengl: split out SMAA
This commit is contained in:
Liam
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// SPDX-FileCopyrightText: Copyright 2023 yuzu Emulator Project
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// SPDX-License-Identifier: GPL-2.0-or-later
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#include "common/settings.h"
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#include "video_core/fsr.h"
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#include "video_core/renderer_opengl/gl_shader_manager.h"
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#include "video_core/renderer_opengl/gl_shader_util.h"
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#include "video_core/renderer_opengl/present/fsr.h"
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namespace OpenGL {
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using namespace FSR;
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using FsrConstants = std::array<u32, 4 * 4>;
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FSR::FSR(std::string_view fsr_vertex_source, std::string_view fsr_easu_source,
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std::string_view fsr_rcas_source)
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: fsr_vertex{CreateProgram(fsr_vertex_source, GL_VERTEX_SHADER)},
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fsr_easu_frag{CreateProgram(fsr_easu_source, GL_FRAGMENT_SHADER)},
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fsr_rcas_frag{CreateProgram(fsr_rcas_source, GL_FRAGMENT_SHADER)} {
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glProgramUniform2f(fsr_vertex.handle, 0, 1.0f, 1.0f);
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glProgramUniform2f(fsr_vertex.handle, 1, 0.0f, 0.0f);
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}
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FSR::~FSR() = default;
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void FSR::Draw(ProgramManager& program_manager, const Common::Rectangle<u32>& screen,
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u32 input_image_width, u32 input_image_height,
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const Common::Rectangle<f32>& crop_rect) {
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const auto output_image_width = screen.GetWidth();
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const auto output_image_height = screen.GetHeight();
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if (fsr_intermediate_tex.handle) {
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GLint fsr_tex_width, fsr_tex_height;
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glGetTextureLevelParameteriv(fsr_intermediate_tex.handle, 0, GL_TEXTURE_WIDTH,
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&fsr_tex_width);
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glGetTextureLevelParameteriv(fsr_intermediate_tex.handle, 0, GL_TEXTURE_HEIGHT,
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&fsr_tex_height);
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if (static_cast<u32>(fsr_tex_width) != output_image_width ||
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static_cast<u32>(fsr_tex_height) != output_image_height) {
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fsr_intermediate_tex.Release();
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}
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}
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if (!fsr_intermediate_tex.handle) {
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fsr_intermediate_tex.Create(GL_TEXTURE_2D);
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glTextureStorage2D(fsr_intermediate_tex.handle, 1, GL_RGB16F, output_image_width,
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output_image_height);
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glNamedFramebufferTexture(fsr_framebuffer.handle, GL_COLOR_ATTACHMENT0,
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fsr_intermediate_tex.handle, 0);
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}
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GLint old_draw_fb;
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glGetIntegerv(GL_DRAW_FRAMEBUFFER_BINDING, &old_draw_fb);
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glFrontFace(GL_CW);
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glBindFramebuffer(GL_DRAW_FRAMEBUFFER, fsr_framebuffer.handle);
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glViewportIndexedf(0, 0.0f, 0.0f, static_cast<GLfloat>(output_image_width),
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static_cast<GLfloat>(output_image_height));
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const f32 input_width = static_cast<f32>(input_image_width);
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const f32 input_height = static_cast<f32>(input_image_height);
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const f32 output_width = static_cast<f32>(screen.GetWidth());
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const f32 output_height = static_cast<f32>(screen.GetHeight());
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const f32 viewport_width = (crop_rect.right - crop_rect.left) * input_width;
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const f32 viewport_x = crop_rect.left * input_width;
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const f32 viewport_height = (crop_rect.bottom - crop_rect.top) * input_height;
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const f32 viewport_y = crop_rect.top * input_height;
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FsrConstants constants;
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FsrEasuConOffset(constants.data() + 0, constants.data() + 4, constants.data() + 8,
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constants.data() + 12, viewport_width, viewport_height, input_width,
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input_height, output_width, output_height, viewport_x, viewport_y);
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glProgramUniform4uiv(fsr_easu_frag.handle, 0, sizeof(constants), std::data(constants));
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program_manager.BindPresentPrograms(fsr_vertex.handle, fsr_easu_frag.handle);
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glDrawArrays(GL_TRIANGLES, 0, 3);
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glBindFramebuffer(GL_DRAW_FRAMEBUFFER, old_draw_fb);
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glBindTextureUnit(0, fsr_intermediate_tex.handle);
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const float sharpening =
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static_cast<float>(Settings::values.fsr_sharpening_slider.GetValue()) / 100.0f;
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FsrRcasCon(constants.data(), sharpening);
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glProgramUniform4uiv(fsr_rcas_frag.handle, 0, sizeof(constants), std::data(constants));
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}
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void FSR::InitBuffers() {
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fsr_framebuffer.Create();
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}
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void FSR::ReleaseBuffers() {
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fsr_framebuffer.Release();
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fsr_intermediate_tex.Release();
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}
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const OGLProgram& FSR::GetPresentFragmentProgram() const noexcept {
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return fsr_rcas_frag;
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}
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bool FSR::AreBuffersInitialized() const noexcept {
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return fsr_framebuffer.handle;
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}
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} // namespace OpenGL
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@@ -0,0 +1,43 @@
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// SPDX-FileCopyrightText: Copyright 2023 yuzu Emulator Project
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// SPDX-License-Identifier: GPL-2.0-or-later
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#pragma once
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#include <string_view>
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#include "common/common_types.h"
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#include "common/math_util.h"
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#include "video_core/fsr.h"
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#include "video_core/renderer_opengl/gl_resource_manager.h"
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namespace OpenGL {
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class ProgramManager;
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class FSR {
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public:
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explicit FSR(std::string_view fsr_vertex_source, std::string_view fsr_easu_source,
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std::string_view fsr_rcas_source);
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~FSR();
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void Draw(ProgramManager& program_manager, const Common::Rectangle<u32>& screen,
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u32 input_image_width, u32 input_image_height,
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const Common::Rectangle<f32>& crop_rect);
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void InitBuffers();
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void ReleaseBuffers();
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[[nodiscard]] const OGLProgram& GetPresentFragmentProgram() const noexcept;
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[[nodiscard]] bool AreBuffersInitialized() const noexcept;
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private:
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OGLFramebuffer fsr_framebuffer;
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OGLProgram fsr_vertex;
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OGLProgram fsr_easu_frag;
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OGLProgram fsr_rcas_frag;
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OGLTexture fsr_intermediate_tex;
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};
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} // namespace OpenGL
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@@ -0,0 +1,108 @@
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// SPDX-FileCopyrightText: Copyright 2024 yuzu Emulator Project
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// SPDX-License-Identifier: GPL-2.0-or-later
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#include "video_core/host_shaders/opengl_smaa_glsl.h"
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#include "video_core/host_shaders/smaa_blending_weight_calculation_frag.h"
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#include "video_core/host_shaders/smaa_blending_weight_calculation_vert.h"
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#include "video_core/host_shaders/smaa_edge_detection_frag.h"
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#include "video_core/host_shaders/smaa_edge_detection_vert.h"
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#include "video_core/host_shaders/smaa_neighborhood_blending_frag.h"
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#include "video_core/host_shaders/smaa_neighborhood_blending_vert.h"
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#include "video_core/renderer_opengl/gl_shader_manager.h"
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#include "video_core/renderer_opengl/gl_shader_util.h"
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#include "video_core/renderer_opengl/present/smaa.h"
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#include "video_core/renderer_opengl/present/util.h"
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#include "video_core/smaa_area_tex.h"
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#include "video_core/smaa_search_tex.h"
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namespace OpenGL {
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SMAA::SMAA(u32 width, u32 height) {
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const auto SmaaShader = [&](std::string_view specialized_source, GLenum stage) {
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std::string shader_source{specialized_source};
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ReplaceInclude(shader_source, "opengl_smaa.glsl", HostShaders::OPENGL_SMAA_GLSL);
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return CreateProgram(shader_source, stage);
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};
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edge_detection_vert = SmaaShader(HostShaders::SMAA_EDGE_DETECTION_VERT, GL_VERTEX_SHADER);
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edge_detection_frag = SmaaShader(HostShaders::SMAA_EDGE_DETECTION_FRAG, GL_FRAGMENT_SHADER);
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blending_weight_calculation_vert =
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SmaaShader(HostShaders::SMAA_BLENDING_WEIGHT_CALCULATION_VERT, GL_VERTEX_SHADER);
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blending_weight_calculation_frag =
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SmaaShader(HostShaders::SMAA_BLENDING_WEIGHT_CALCULATION_FRAG, GL_FRAGMENT_SHADER);
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neighborhood_blending_vert =
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SmaaShader(HostShaders::SMAA_NEIGHBORHOOD_BLENDING_VERT, GL_VERTEX_SHADER);
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neighborhood_blending_frag =
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SmaaShader(HostShaders::SMAA_NEIGHBORHOOD_BLENDING_FRAG, GL_FRAGMENT_SHADER);
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glBindBuffer(GL_PIXEL_UNPACK_BUFFER, 0);
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glPixelStorei(GL_UNPACK_SWAP_BYTES, GL_FALSE);
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glPixelStorei(GL_UNPACK_LSB_FIRST, GL_FALSE);
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glPixelStorei(GL_UNPACK_ROW_LENGTH, 0);
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glPixelStorei(GL_UNPACK_IMAGE_HEIGHT, 0);
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glPixelStorei(GL_UNPACK_SKIP_PIXELS, 0);
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glPixelStorei(GL_UNPACK_SKIP_ROWS, 0);
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glPixelStorei(GL_UNPACK_ALIGNMENT, 4);
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area_tex.Create(GL_TEXTURE_2D);
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glTextureStorage2D(area_tex.handle, 1, GL_RG8, AREATEX_WIDTH, AREATEX_HEIGHT);
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glTextureSubImage2D(area_tex.handle, 0, 0, 0, AREATEX_WIDTH, AREATEX_HEIGHT, GL_RG,
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GL_UNSIGNED_BYTE, areaTexBytes);
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search_tex.Create(GL_TEXTURE_2D);
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glTextureStorage2D(search_tex.handle, 1, GL_R8, SEARCHTEX_WIDTH, SEARCHTEX_HEIGHT);
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glTextureSubImage2D(search_tex.handle, 0, 0, 0, SEARCHTEX_WIDTH, SEARCHTEX_HEIGHT, GL_RED,
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GL_UNSIGNED_BYTE, searchTexBytes);
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edges_tex.Create(GL_TEXTURE_2D);
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glTextureStorage2D(edges_tex.handle, 1, GL_RG16F, width, height);
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blend_tex.Create(GL_TEXTURE_2D);
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glTextureStorage2D(blend_tex.handle, 1, GL_RGBA16F, width, height);
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sampler = CreateBilinearSampler();
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framebuffer.Create();
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texture.Create(GL_TEXTURE_2D);
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glTextureStorage2D(texture.handle, 1, GL_RGBA16F, width, height);
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glNamedFramebufferTexture(framebuffer.handle, GL_COLOR_ATTACHMENT0, texture.handle, 0);
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}
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SMAA::~SMAA() = default;
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GLuint SMAA::Draw(ProgramManager& program_manager, GLuint input_texture) {
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glClearColor(0, 0, 0, 0);
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glFrontFace(GL_CCW);
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glBindFramebuffer(GL_DRAW_FRAMEBUFFER, framebuffer.handle);
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glBindSampler(0, sampler.handle);
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glBindSampler(1, sampler.handle);
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glBindSampler(2, sampler.handle);
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glBindTextureUnit(0, input_texture);
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glNamedFramebufferTexture(framebuffer.handle, GL_COLOR_ATTACHMENT0, edges_tex.handle, 0);
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glClear(GL_COLOR_BUFFER_BIT);
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program_manager.BindPresentPrograms(edge_detection_vert.handle, edge_detection_frag.handle);
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glDrawArrays(GL_TRIANGLES, 0, 3);
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glBindTextureUnit(0, edges_tex.handle);
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glBindTextureUnit(1, area_tex.handle);
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glBindTextureUnit(2, search_tex.handle);
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glNamedFramebufferTexture(framebuffer.handle, GL_COLOR_ATTACHMENT0, blend_tex.handle, 0);
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glClear(GL_COLOR_BUFFER_BIT);
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program_manager.BindPresentPrograms(blending_weight_calculation_vert.handle,
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blending_weight_calculation_frag.handle);
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glDrawArrays(GL_TRIANGLES, 0, 3);
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glBindTextureUnit(0, input_texture);
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glBindTextureUnit(1, blend_tex.handle);
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glNamedFramebufferTexture(framebuffer.handle, GL_COLOR_ATTACHMENT0, texture.handle, 0);
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program_manager.BindPresentPrograms(neighborhood_blending_vert.handle,
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neighborhood_blending_frag.handle);
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glClear(GL_COLOR_BUFFER_BIT);
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glDrawArrays(GL_TRIANGLES, 0, 3);
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glFrontFace(GL_CW);
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return texture.handle;
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}
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} // namespace OpenGL
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@@ -0,0 +1,35 @@
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// SPDX-FileCopyrightText: Copyright 2024 yuzu Emulator Project
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// SPDX-License-Identifier: GPL-2.0-or-later
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#pragma once
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#include "video_core/renderer_opengl/gl_resource_manager.h"
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namespace OpenGL {
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class ProgramManager;
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class SMAA {
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public:
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explicit SMAA(u32 width, u32 height);
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~SMAA();
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GLuint Draw(ProgramManager& program_manager, GLuint input_texture);
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private:
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OGLProgram edge_detection_vert;
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OGLProgram blending_weight_calculation_vert;
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OGLProgram neighborhood_blending_vert;
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OGLProgram edge_detection_frag;
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OGLProgram blending_weight_calculation_frag;
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OGLProgram neighborhood_blending_frag;
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OGLTexture area_tex;
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OGLTexture search_tex;
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OGLTexture edges_tex;
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OGLTexture blend_tex;
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OGLSampler sampler;
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OGLFramebuffer framebuffer;
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OGLTexture texture;
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};
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} // namespace OpenGL
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@@ -0,0 +1,32 @@
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// SPDX-FileCopyrightText: Copyright 2024 yuzu Emulator Project
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// SPDX-License-Identifier: GPL-2.0-or-later
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#pragma once
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#include <string>
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#include "common/assert.h"
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#include "video_core/renderer_opengl/gl_resource_manager.h"
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namespace OpenGL {
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static inline void ReplaceInclude(std::string& shader_source, std::string_view include_name,
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std::string_view include_content) {
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const std::string include_string = fmt::format("#include \"{}\"", include_name);
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const std::size_t pos = shader_source.find(include_string);
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ASSERT(pos != std::string::npos);
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shader_source.replace(pos, include_string.size(), include_content);
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};
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static inline OGLSampler CreateBilinearSampler() {
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OGLSampler sampler;
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sampler.Create();
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glSamplerParameteri(sampler.handle, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
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glSamplerParameteri(sampler.handle, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
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glSamplerParameteri(sampler.handle, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
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glSamplerParameteri(sampler.handle, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
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glSamplerParameteri(sampler.handle, GL_TEXTURE_WRAP_R, GL_CLAMP_TO_EDGE);
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return sampler;
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}
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} // namespace OpenGL
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