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Implement texture offset support for TexelFetch and TextureGather and add offsets for Tlds 

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This commit is contained in:
Kelebek1 2021-02-14 23:21:42 +00:00
parent b0a3915351
commit fb54c38631
3 changed files with 34 additions and 9 deletions
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31
src/video_core/renderer_vulkan/vk_shader_decompiler.cpp
View File

@ -1845,13 +1845,21 @@ private:
Expression TextureGather(Operation operation) {
const auto& meta = std::get<MetaTexture>(operation.GetMeta());
UNIMPLEMENTED_IF(!meta.aoffi.empty());
const Id coords = GetCoordinates(operation, Type::Float);
spv::ImageOperandsMask mask = spv::ImageOperandsMask::MaskNone;
std::vector<Id> operands{};
Id texture{};
if (!meta.aoffi.empty()) {
mask = mask | spv::ImageOperandsMask::Offset;
operands.push_back(GetOffsetCoordinates(operation));
}
if (meta.sampler.is_shadow) {
texture = OpImageDrefGather(t_float4, GetTextureSampler(operation), coords,
AsFloat(Visit(meta.depth_compare)));
AsFloat(Visit(meta.depth_compare)), mask, operands);
} else {
u32 component_value = 0;
if (meta.component) {
@ -1860,7 +1868,7 @@ private:
component_value = component->GetValue();
}
texture = OpImageGather(t_float4, GetTextureSampler(operation), coords,
Constant(t_uint, component_value));
Constant(t_uint, component_value), mask, operands);
}
return GetTextureElement(operation, texture, Type::Float);
}
@ -1928,13 +1936,22 @@ private:
const Id image = GetTextureImage(operation);
const Id coords = GetCoordinates(operation, Type::Int);
spv::ImageOperandsMask mask = spv::ImageOperandsMask::MaskNone;
std::vector<Id> operands{};
Id fetch;
if (meta.lod && !meta.sampler.is_buffer) {
fetch = OpImageFetch(t_float4, image, coords, spv::ImageOperandsMask::Lod,
AsInt(Visit(meta.lod)));
} else {
fetch = OpImageFetch(t_float4, image, coords);
mask = mask | spv::ImageOperandsMask::Lod;
operands.push_back(AsInt(Visit(meta.lod)));
}
if (!meta.aoffi.empty()) {
mask = mask | spv::ImageOperandsMask::Offset;
operands.push_back(GetOffsetCoordinates(operation));
}
fetch = OpImageFetch(t_float4, image, coords, mask, operands);
return GetTextureElement(operation, fetch, Type::Float);
}

1
src/video_core/shader/decode/memory.cpp
View File

@ -330,6 +330,7 @@ u32 ShaderIR::DecodeMemory(NodeBlock& bb, u32 pc) {
case StoreType::Bits32:
(this->*set_memory)(bb, GetAddress(0), GetRegister(instr.gpr0));
break;
case StoreType::Unsigned16:
case StoreType::Signed16: {
Node address = GetAddress(0);
Node memory = (this->*get_memory)(address);

11
src/video_core/shader/decode/texture.cpp
View File

@ -806,6 +806,7 @@ Node4 ShaderIR::GetTldsCode(Instruction instr, TextureType texture_type, bool is
const std::size_t type_coord_count = GetCoordCount(texture_type);
const bool lod_enabled = instr.tlds.GetTextureProcessMode() == TextureProcessMode::LL;
const bool aoffi_enabled = instr.tlds.UsesMiscMode(TextureMiscMode::AOFFI);
// If enabled arrays index is always stored in the gpr8 field
const u64 array_register = instr.gpr8.Value();
@ -820,17 +821,23 @@ Node4 ShaderIR::GetTldsCode(Instruction instr, TextureType texture_type, bool is
std::vector<Node> coords;
for (std::size_t i = 0; i < type_coord_count; ++i) {
const bool last = (i == (type_coord_count - 1)) && (type_coord_count > 1);
coords.push_back(GetRegister(last ? last_coord_register : coord_register + i));
coords.push_back(
GetRegister(last && !aoffi_enabled ? last_coord_register : coord_register + i));
}
const Node array = is_array ? GetRegister(array_register) : nullptr;
// When lod is used always is in gpr20
const Node lod = lod_enabled ? GetRegister(instr.gpr20) : Immediate(0);
std::vector<Node> aoffi{};
if (aoffi_enabled) {
aoffi = GetAoffiCoordinates(GetRegister(instr.gpr20), type_coord_count, false);
}
Node4 values;
for (u32 element = 0; element < values.size(); ++element) {
auto coords_copy = coords;
MetaTexture meta{*sampler, array, {}, {}, {}, {}, {}, lod, {}, element, {}};
MetaTexture meta{*sampler, array, {}, aoffi, {}, {}, {}, lod, {}, element, {}};
values[element] = Operation(OperationCode::TexelFetch, meta, std::move(coords_copy));
}
return values;