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Henrik RydgårdandClaude Opus 5.5 bb72b748e1 SoftGPU: Pick the span function by blend kind, and decide the vector path once

The span functions come in three blend kinds (none, source alpha over the
destination, and the general one), and states with logic ops or signed blend
factors get the pixel at a time function up front instead of checking per
span. 4.5% fewer instructions in God of War.

Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>

2026-10-09 10:34:39 +02:00

BinManager.cpp

SoftGPU: Store depth in VRAM as the GE does

2026-10-08 18:35:48 +02:00

BinManager.h

SoftGPU: Store depth in VRAM as the GE does

2026-10-08 18:35:48 +02:00

Clipper.cpp

SoftGPU: Cull primitives entirely outside an x or y plane

2026-10-02 15:09:43 -06:00

Clipper.h

SoftGPU: Cull primitives entirely outside an x or y plane

2026-10-02 15:09:43 -06:00

DrawPixel.cpp

SoftGPU: Pick the span function by blend kind, and decide the vector path once

2026-10-09 10:34:39 +02:00

DrawPixel.h

SoftGPU: Pass a span's colors a channel at a time

2026-10-09 10:34:39 +02:00

DrawPixelX86.cpp

SoftGPU: Store depth in VRAM as the GE does

2026-10-08 18:35:48 +02:00

FuncId.cpp

SoftGPU: Keep a not-black color test when dithering, fog or a logic op is on

2026-10-08 18:37:32 +02:00

FuncId.h

SoftGPU: Store depth in VRAM as the GE does

2026-10-08 18:35:48 +02:00

GEMath.cpp

SoftGPU: Inline GERecip, and pick the mip level's q once per quad row

2026-10-09 10:34:39 +02:00

GEMath.h

SoftGPU: Check a triangle's UV planes once instead of every span

2026-10-09 10:34:39 +02:00

Lighting.cpp

SoftGPU: Add the diffuse light without branching on its factor

2026-10-09 09:07:12 +02:00

Lighting.h

SoftGPU: Keep the vertex position, normal and light vectors as Vec4F32

2026-10-09 09:07:12 +02:00

Rasterizer.cpp

SoftGPU: Early depth test of staged spans in vector lanes

2026-10-09 10:34:39 +02:00

Rasterizer.h

SoftGPU: Draw the pixels of a span together, in vector lanes

2026-10-09 10:34:39 +02:00

RasterizerRectangle.cpp

SoftGPU: Only draw 1:1 textured triangle rectangles as sprites

2026-10-02 15:09:43 -06:00

RasterizerRectangle.h

SoftGPU: Keep textured rectangles as triangles unless they'd match

2026-10-02 15:09:42 -06:00

RasterizerRegCache.cpp

GPU: modernize use C++17 constexpr for precalculate compilation

2026-05-19 21:57:45 +03:00

RasterizerRegCache.h

Delete remains of support for the MIPS architecture as host

2026-02-17 10:20:51 +01:00

README.txt

…

Sampler.cpp

SoftGPU: Pass a span's colors a channel at a time

2026-10-09 10:34:39 +02:00

Sampler.h

SoftGPU: Pass a span's colors a channel at a time

2026-10-09 10:34:39 +02:00

SamplerX86.cpp

SoftGPU: Leave textures with an invalid level address to the generic samplers

2026-10-05 13:05:46 -06:00

SoftGpu.cpp

SoftGPU: Keep the vertex position, normal and light vectors as Vec4F32

2026-10-09 09:07:12 +02:00

SoftGpu.h

SoftGPU: Draw clear mode, stencil and color test spans in vector lanes

2026-10-09 10:34:39 +02:00

TransformUnit.cpp

SoftGPU: Skin a vertex without per-operation fallback checks

2026-10-09 09:07:12 +02:00

TransformUnit.h

SoftGPU: Keep the vertex position, normal and light vectors as Vec4F32

2026-10-09 09:07:12 +02:00

trirast.txt

…

README.txt

To get to 100% compatibility, we will need a software renderer as there are games out there that do tricks
that can't really be faked in a sensible way. Useful for homebrew too that mix sw and accel rendering.