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[GPU] Texture integer scaling fetches; 8_8_8_8_GAMMA resolve

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Integer num_format fetches now get their scale CPU-side instead of trying to guess in the shader. This is authoritative; no cvar. Both translators now use texture_integer_scale_bits after signs/gamma and before exponent bias. This alone fixes black screens and a bunch of rendering bugs across at least several dozen titles.

This new information lives in the updated FormatInfo table, including fixed component widths.

Resolve also has two new fixes.

8_8_8_8_GAMMA EDRAM sources can now decode through the PWL curve while still in linear space, before MSAA resolve or format conversion, then re-encoded for gamma destinations. This is also now default enabled via gamma_decode_pwl_resolve and has improved blowout in at least 4 titles, with no obvious regressions thus far.

Full resolve can also now pack fixed destinations according to copy_dest_number.
This commit is contained in:
goldislead
2026-06-30 20:40:19 -07:00
committed by Radosław Gliński
parent 573cce0fe2
commit d119505289
24 changed files with 669 additions and 156 deletions
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6
src/xenia/gpu/vulkan/vulkan_command_processor.cc
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@@ -4705,6 +4705,12 @@ void VulkanCommandProcessor::UpdateSystemConstantValues(
(texture_signs_uint & texture_signs_mask) != texture_signs_shifted;
texture_signs_uint =
(texture_signs_uint & ~texture_signs_mask) | texture_signs_shifted;
uint32_t texture_integer_scale_bits =
texture_cache_->GetActiveIntegerScaleBits(texture_index);
dirty |= system_constants_.texture_integer_scale_bits[texture_index] !=
texture_integer_scale_bits;
system_constants_.texture_integer_scale_bits[texture_index] =
texture_integer_scale_bits;
}
}