ppsspp

preserve-emulation/ppsspp

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Henrik RydgårdandClaude Opus 5.5 763bcde73e Sample the last texel where the projected q isn't positive

The GE doesn't divide by a q <= 0: it samples the last texel in u and v,
whatever s and t are, in clamp and repeat modes alike (gpu/texmtx/negq). The
hardware backends divided, which mirrors a projected texture behind its
projector: Fate/Extra's character shadows ran up the school's walls (#18667).
The software renderer sampled (0, 0) instead.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

2026-10-10 01:04:23 +02:00

BinManager.cpp

Allow specifying a cap on the number of threads used in ParallelLoop

2026-10-09 14:33:58 +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

Sample the last texel where the projected q isn't positive

2026-10-10 01:04:23 +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

Sample the last texel where the projected q isn't positive

2026-10-10 01:04:23 +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: Let the quad sampler skip the level check when all is level 0

2026-10-09 11:39:29 +02:00

Sampler.h

SoftGPU: Let the quad sampler skip the level check when all is level 0

2026-10-09 11:39:29 +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.