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Shader Decompiler: Check for shift when deriving composite samplers.

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This commit is contained in:
Fernando Sahmkow 2022-03-06 19:54:40 +01:00
parent a283eda320
commit ba34cf0a69
6 changed files with 46 additions and 11 deletions
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34
src/shader_recompiler/ir_opt/texture_pass.cpp
View file

@ -19,8 +19,10 @@ namespace {
struct ConstBufferAddr {
u32 index;
u32 offset;
u32 shift_left;
u32 secondary_index;
u32 secondary_offset;
u32 secondary_shift_left;
IR::U32 dynamic_offset;
u32 count;
bool has_secondary;
@ -182,6 +184,7 @@ std::optional<ConstBufferAddr> TryGetConstBuffer(const IR::Inst* inst) {
switch (inst->GetOpcode()) {
default:
return std::nullopt;
case IR::Opcode::BitwiseXor32:
case IR::Opcode::BitwiseOr32: {
std::optional lhs{Track(inst->Arg(0))};
std::optional rhs{Track(inst->Arg(1))};
@ -194,19 +197,33 @@ std::optional<ConstBufferAddr> TryGetConstBuffer(const IR::Inst* inst) {
if (lhs->count > 1 || rhs->count > 1) {
return std::nullopt;
}
if (lhs->index > rhs->index || lhs->offset > rhs->offset) {
if (lhs->shift_left > 0 || lhs->index > rhs->index || lhs->offset > rhs->offset) {
std::swap(lhs, rhs);
}
return ConstBufferAddr{
.index = lhs->index,
.offset = lhs->offset,
.shift_left = lhs->shift_left,
.secondary_index = rhs->index,
.secondary_offset = rhs->offset,
.secondary_shift_left = rhs->shift_left,
.dynamic_offset = {},
.count = 1,
.has_secondary = true,
};
}
case IR::Opcode::ShiftLeftLogical32: {
const IR::Value shift{inst->Arg(1)};
if (!shift.IsImmediate()) {
return std::nullopt;
}
std::optional lhs{Track(inst->Arg(0))};
if (lhs) {
lhs->shift_left = shift.U32();
}
return lhs;
break;
}
case IR::Opcode::GetCbufU32x2:
case IR::Opcode::GetCbufU32:
break;
@ -222,8 +239,10 @@ std::optional<ConstBufferAddr> TryGetConstBuffer(const IR::Inst* inst) {
return ConstBufferAddr{
.index = index.U32(),
.offset = offset.U32(),
.shift_left = 0,
.secondary_index = 0,
.secondary_offset = 0,
.secondary_shift_left = 0,
.dynamic_offset = {},
.count = 1,
.has_secondary = false,
@ -247,8 +266,10 @@ std::optional<ConstBufferAddr> TryGetConstBuffer(const IR::Inst* inst) {
return ConstBufferAddr{
.index = index.U32(),
.offset = base_offset,
.shift_left = 0,
.secondary_index = 0,
.secondary_offset = 0,
.secondary_shift_left = 0,
.dynamic_offset = dynamic_offset,
.count = 8,
.has_secondary = false,
@ -267,8 +288,10 @@ TextureInst MakeInst(Environment& env, IR::Block* block, IR::Inst& inst) {
addr = ConstBufferAddr{
.index = env.TextureBoundBuffer(),
.offset = inst.Arg(0).U32(),
.shift_left = 0,
.secondary_index = 0,
.secondary_offset = 0,
.secondary_shift_left = 0,
.dynamic_offset = {},
.count = 1,
.has_secondary = false,
@ -284,8 +307,9 @@ TextureInst MakeInst(Environment& env, IR::Block* block, IR::Inst& inst) {
TextureType ReadTextureType(Environment& env, const ConstBufferAddr& cbuf) {
const u32 secondary_index{cbuf.has_secondary ? cbuf.secondary_index : cbuf.index};
const u32 secondary_offset{cbuf.has_secondary ? cbuf.secondary_offset : cbuf.offset};
const u32 lhs_raw{env.ReadCbufValue(cbuf.index, cbuf.offset)};
const u32 rhs_raw{env.ReadCbufValue(secondary_index, secondary_offset)};
const u32 lhs_raw{env.ReadCbufValue(cbuf.index, cbuf.offset) << cbuf.shift_left};
const u32 rhs_raw{env.ReadCbufValue(secondary_index, secondary_offset)
<< cbuf.secondary_shift_left};
return env.ReadTextureType(lhs_raw | rhs_raw);
}
@ -487,8 +511,10 @@ void TexturePass(Environment& env, IR::Program& program) {
.has_secondary = cbuf.has_secondary,
.cbuf_index = cbuf.index,
.cbuf_offset = cbuf.offset,
.shift_left = cbuf.shift_left,
.secondary_cbuf_index = cbuf.secondary_index,
.secondary_cbuf_offset = cbuf.secondary_offset,
.secondary_shift_left = cbuf.secondary_shift_left,
.count = cbuf.count,
.size_shift = DESCRIPTOR_SIZE_SHIFT,
});
@ -499,8 +525,10 @@ void TexturePass(Environment& env, IR::Program& program) {
.has_secondary = cbuf.has_secondary,
.cbuf_index = cbuf.index,
.cbuf_offset = cbuf.offset,
.shift_left = cbuf.shift_left,
.secondary_cbuf_index = cbuf.secondary_index,
.secondary_cbuf_offset = cbuf.secondary_offset,
.secondary_shift_left = cbuf.secondary_shift_left,
.count = cbuf.count,
.size_shift = DESCRIPTOR_SIZE_SHIFT,
});

4
src/shader_recompiler/shader_info.h
View file

@ -61,8 +61,10 @@ struct TextureBufferDescriptor {
bool has_secondary;
u32 cbuf_index;
u32 cbuf_offset;
u32 shift_left;
u32 secondary_cbuf_index;
u32 secondary_cbuf_offset;
u32 secondary_shift_left;
u32 count;
u32 size_shift;
};
@ -85,8 +87,10 @@ struct TextureDescriptor {
bool has_secondary;
u32 cbuf_index;
u32 cbuf_offset;
u32 shift_left;
u32 secondary_cbuf_index;
u32 secondary_cbuf_offset;
u32 secondary_shift_left;
u32 count;
u32 size_shift;
};

5
src/video_core/renderer_opengl/gl_compute_pipeline.cpp
View file

@ -100,8 +100,9 @@ void ComputePipeline::Configure() {
const u32 secondary_offset{desc.secondary_cbuf_offset + index_offset};
const GPUVAddr separate_addr{cbufs[desc.secondary_cbuf_index].Address() +
secondary_offset};
const u32 lhs_raw{gpu_memory->Read<u32>(addr)};
const u32 rhs_raw{gpu_memory->Read<u32>(separate_addr)};
const u32 lhs_raw{gpu_memory->Read<u32>(addr) << desc.shift_left};
const u32 rhs_raw{gpu_memory->Read<u32>(separate_addr)
<< desc.secondary_shift_left};
return TexturePair(lhs_raw | rhs_raw, via_header_index);
}
}

5
src/video_core/renderer_opengl/gl_graphics_pipeline.cpp
View file

@ -312,8 +312,9 @@ void GraphicsPipeline::ConfigureImpl(bool is_indexed) {
const u32 second_offset{desc.secondary_cbuf_offset + index_offset};
const GPUVAddr separate_addr{cbufs[desc.secondary_cbuf_index].address +
second_offset};
const u32 lhs_raw{gpu_memory->Read<u32>(addr)};
const u32 rhs_raw{gpu_memory->Read<u32>(separate_addr)};
const u32 lhs_raw{gpu_memory->Read<u32>(addr) << desc.shift_left};
const u32 rhs_raw{gpu_memory->Read<u32>(separate_addr)
<< desc.secondary_shift_left};
const u32 raw{lhs_raw | rhs_raw};
return TexturePair(raw, via_header_index);
}

4
src/video_core/renderer_vulkan/vk_compute_pipeline.cpp
View file

@ -126,8 +126,8 @@ void ComputePipeline::Configure(Tegra::Engines::KeplerCompute& kepler_compute,
const u32 secondary_offset{desc.secondary_cbuf_offset + index_offset};
const GPUVAddr separate_addr{cbufs[desc.secondary_cbuf_index].Address() +
secondary_offset};
const u32 lhs_raw{gpu_memory.Read<u32>(addr)};
const u32 rhs_raw{gpu_memory.Read<u32>(separate_addr)};
const u32 lhs_raw{gpu_memory.Read<u32>(addr) << desc.shift_left};
const u32 rhs_raw{gpu_memory.Read<u32>(separate_addr) << desc.secondary_shift_left};
return TexturePair(lhs_raw | rhs_raw, via_header_index);
}
}

5
src/video_core/renderer_vulkan/vk_graphics_pipeline.cpp
View file

@ -314,8 +314,9 @@ void GraphicsPipeline::ConfigureImpl(bool is_indexed) {
const u32 second_offset{desc.secondary_cbuf_offset + index_offset};
const GPUVAddr separate_addr{cbufs[desc.secondary_cbuf_index].address +
second_offset};
const u32 lhs_raw{gpu_memory->Read<u32>(addr)};
const u32 rhs_raw{gpu_memory->Read<u32>(separate_addr)};
const u32 lhs_raw{gpu_memory->Read<u32>(addr) << desc.shift_left};
const u32 rhs_raw{gpu_memory->Read<u32>(separate_addr)
<< desc.secondary_shift_left};
const u32 raw{lhs_raw | rhs_raw};
return TexturePair(raw, via_header_index);
}