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rescaling_pass: Fix rescaling Color2DArray ImageFetch offsets 

ImageFetch offsets for 2D array coordinates have a different composite size than the coordinates. The rescaling pass was not taking this into account.

Fixes broken shaders when scaling is enabled in Astral Chain, and likely other titles.
This commit is contained in:
ameerj 2022-03-12 03:31:56 -05:00
parent 27cc7b6a73
commit f87f8d4610
1 changed files with 27 additions and 2 deletions
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29
src/shader_recompiler/ir_opt/rescaling_pass.cpp
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@ -183,6 +183,31 @@ void ScaleIntegerComposite(IR::IREmitter& ir, IR::Inst& inst, const IR::U1& is_s
}
}
void ScaleIntegerOffsetComposite(IR::IREmitter& ir, IR::Inst& inst, const IR::U1& is_scaled,
size_t index) {
const IR::Value composite{inst.Arg(index)};
if (composite.IsEmpty()) {
return;
}
const auto info{inst.Flags<IR::TextureInstInfo>()};
const IR::U32 x{Scale(ir, is_scaled, IR::U32{ir.CompositeExtract(composite, 0)})};
const IR::U32 y{Scale(ir, is_scaled, IR::U32{ir.CompositeExtract(composite, 1)})};
switch (info.type) {
case TextureType::ColorArray2D:
case TextureType::Color2D:
inst.SetArg(index, ir.CompositeConstruct(x, y));
break;
case TextureType::Color1D:
case TextureType::ColorArray1D:
case TextureType::Color3D:
case TextureType::ColorCube:
case TextureType::ColorArrayCube:
case TextureType::Buffer:
// Nothing to patch here
break;
}
}
void SubScaleCoord(IR::IREmitter& ir, IR::Inst& inst, const IR::U1& is_scaled) {
const auto info{inst.Flags<IR::TextureInstInfo>()};
const IR::Value coord{inst.Arg(1)};
@ -220,7 +245,7 @@ void SubScaleImageFetch(IR::Block& block, IR::Inst& inst) {
const IR::U1 is_scaled{ir.IsTextureScaled(ir.Imm32(info.descriptor_index))};
SubScaleCoord(ir, inst, is_scaled);
// Scale ImageFetch offset
ScaleIntegerComposite(ir, inst, is_scaled, 2);
ScaleIntegerOffsetComposite(ir, inst, is_scaled, 2);
}
void SubScaleImageRead(IR::Block& block, IR::Inst& inst) {
@ -242,7 +267,7 @@ void PatchImageFetch(IR::Block& block, IR::Inst& inst) {
const IR::U1 is_scaled{ir.IsTextureScaled(ir.Imm32(info.descriptor_index))};
ScaleIntegerComposite(ir, inst, is_scaled, 1);
// Scale ImageFetch offset
ScaleIntegerComposite(ir, inst, is_scaled, 2);
ScaleIntegerOffsetComposite(ir, inst, is_scaled, 2);
}
void PatchImageRead(IR::Block& block, IR::Inst& inst) {