Video textures were clamped to a 480x272 frame on both axes, so filtering
can't pull in whatever lies next to the frame in memory. The VSH's UMD
Video player converts 480 rows, into a 256 or 512-wide texture it uses as
a ring that its strips wrap around: the rows past 272 smeared, and the
wrapped strips were stretched. The clamp now covers the rows written at
the texture, and the columns the strips written into its first row cover.
An axis the frame fills keeps the game's wrap mode. A game's 480x272
frame is clamped as before.
Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>
The shader depal CLUT8 mode now handles 565, 5551 and 4444 framebuffers
(the format goes in the depal format bits, which this mode didn't fill
before), rebuilding the 16-bit pixel and taking its low or high byte.
This replaces SOCOMClut8Replacement, which assumed the high byte.
- The GE samples a pixel at its corner, the GPU at its center. With u
stepping two bytes per pixel (SOCOM and Bend's games use u = 1 + 2x)
that's a whole byte, so the shader steps back to the corner.
- The CLUT index shift, mask and start are applied, as in the other
depal modes.
- The self-render copy region counted CLUT8's U in pixels, not bytes.
SOCOM, Star Wars: The Force Unleashed and the NPJG90068 dumps improve a
lot. Syphon Filter and Resistance: Retribution now read the right bytes,
which exposes a 16-bit precision difference in their bright pass.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Nothing writes depth then, so the shader write is wasted. On Apple's OpenGL
it also broke Tales of Phantasia (PixelDepthRounding): once the shader writes
gl_FragDepth, a discarded fragment still writes stencil, so a color-tested
stencil pass marked the whole area and the background tiles drawn with
stencil EQUAL 0 vanished.
New FS ID bit, so both shader caches get a version bump.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Environment map S and T are (N.L + 1) / 2 with L the light's vector as
lighting uses it: from the vertex to the light for point and spot lights,
a zero vector staying zero, and the half vector for a light that does
specular. Whether lighting or the light is enabled still doesn't matter
(gpu/lighting/shademap).
The vertex shader ID now carries the type and computation of the shade
mapping lights (the ubershader reads them from u_lightControl), so both
shader caches get a new version.
Fixes the hair shine in iDOLM@STER SP (#12376).
Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>
Slightly reduces the number of unique vertex shaders but doesn't do much
for the pipeline count, as the fragment shader has a tex flag. Still
worth doing for the simplification.
