Jayden/sharpemu
1
0
Fork 0
mirror of https://github.com/par274/sharpemu.git synced 2026-08-01 07:29:43 +08:00
Code Issues Packages Projects Releases Wiki Activity

[AGC] Quake rendering progress: WAIT_REG_MEM, draw fixes, VideoOut, and HLE improvements (#68)

Browse Source 
* [agc] WAIT_REG_MEM suspend/resume, draw packet fixes, new HLE exports, debug cleanup

Rebased onto upstream 79a7437 (par274/sharpemu, rewritten history).

- GpuWaitRegistry: DCBs suspended on unsatisfied WAIT_REG_MEM are re-polled
  against guest memory on every submit; fixed 64-bit and standard packet parse
  offsets, apply the mask, treat PM4 compare function 0 as "always".
- TryReadSubmittedDrawCount: accept the 5-dword ItDrawIndex2 form emitted by
  DcbDrawIndex (count at +4); menu draws were silently discarded before.
- sceAgcDriverSubmitMultiDcbs: reversed ABI (rdi=address array, rsi=dword
  sizes, rdx=count).
- VideoOut: vblank events, sceVideoOutGetFlipStatus, buffers registered via
  sceVideoOutRegisterBuffers are valid flip targets.
- New HLE: libc stdio (fopen/fread/fseek/ftell/fclose/fgets), Dinkumware
  _Getpctype ctype table, NpTrophy2 stubs, AMPR PAK sequential-read tracker,
  MsgDialog lifecycle, NGS2 alt NIDs + dummy vtable for handle objects,
  guarded memset intrinsic, abort()/strcasecmp null-arg recovery.
- Removed investigation-only code (INT3 breakpoints, qfont/mcpp dumps,
  error-candidate printf traces, unconditional debug logs).

First rendered frame: Quake (PPSA01880) presents a 1920x1080 guest frame.

* Implemented a guarded native intrinsic (rep movsb) in DirectExecutionBackend to bypass HLE dispatch overhead, while preserving memory safety checks.
This commit is contained in:
Foued Attar
2026-07-11 23:22:48 +02:00
committed by GitHub
parent de4fc1e1a8
commit e1cf5b13ef
21 changed files with 2204 additions and 191 deletions
Download Patch File Download Diff File Expand all files Collapse all files
src/SharpEmu.Libs/Ampr/AmprExports.cs
+38 -4
View File
@@ -267,19 +267,53 @@ public static class AmprExports
return (int)OrbisGen2Result.ORBIS_GEN2_ERROR_MEMORY_FAULT;
}
if (!AmprFileRegistry.TryGetHostPath(fileId, out var hostPath))
ulong bytesRead = 0;
// Unregistered/missing files are zero-filled instead of failing: games queue
// speculative reads and only consume the bytes on success paths.
if (!AmprFileRegistry.TryGetHostPath(fileId, out var hostPath) || !File.Exists(hostPath))
{
TraceAmprRead(ctx, commandBuffer, fileId, destination, size, fileOffset, bytesRead: 0, hostPath, (int)OrbisGen2Result.ORBIS_GEN2_ERROR_NOT_FOUND);
return (int)OrbisGen2Result.ORBIS_GEN2_ERROR_NOT_FOUND;
if (destination != 0 && size > 0)
{
int chunkSize = (int)Math.Min(size, 4096);
Span<byte> zeros = stackalloc byte[chunkSize];
zeros.Clear();
while (bytesRead < size)
{
int currentChunk = (int)Math.Min((ulong)chunkSize, size - bytesRead);
if (!ctx.Memory.TryWrite(destination + bytesRead, zeros[..currentChunk]))
{
break;
}
bytesRead += (ulong)currentChunk;
}
}
TraceAmprRead(ctx, commandBuffer, fileId, destination, size, fileOffset, bytesRead, "(missing)", (int)OrbisGen2Result.ORBIS_GEN2_OK);
ctx[CpuRegister.Rax] = 0;
return (int)OrbisGen2Result.ORBIS_GEN2_OK;
}
var result = TryReadFileToGuestMemory(ctx, hostPath, fileOffset, destination, size, out var bytesRead);
// Offset -1 means "continue after the previous read of this file id".
if (fileOffset == unchecked((ulong)(long)-1))
{
fileOffset = PakDirectoryTracker.ResolveSequentialOffset(fileId, size);
}
else if (fileOffset > long.MaxValue)
{
fileOffset = 0;
}
var result = TryReadFileToGuestMemory(ctx, hostPath, fileOffset, destination, size, out bytesRead);
if (result != (int)OrbisGen2Result.ORBIS_GEN2_OK)
{
TraceAmprRead(ctx, commandBuffer, fileId, destination, size, fileOffset, bytesRead, hostPath, result);
return result;
}
PakDirectoryTracker.OnReadCompleted(ctx, fileId, destination, fileOffset, bytesRead);
if (!AppendReadFileRecord(ctx, commandBuffer, fileId, destination, size, fileOffset, bytesRead))
{
return (int)OrbisGen2Result.ORBIS_GEN2_ERROR_MEMORY_FAULT;