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vk_shader_decompiler: Implement texture decompilation helper functions

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This commit is contained in:
ReinUsesLisp 2019-03-14 02:45:51 -03:00
parent 676172e20d
commit 4667ed8e22
1 changed files with 32 additions and 0 deletions
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32
src/video_core/renderer_vulkan/vk_shader_decompiler.cpp
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@ -804,6 +804,38 @@ private:
return {};
}
Id GetTextureSampler(Operation operation) {
const auto meta = std::get_if<MetaTexture>(&operation.GetMeta());
const auto entry = sampler_images.at(static_cast<u32>(meta->sampler.GetIndex()));
return Emit(OpLoad(entry.sampled_image_type, entry.sampler));
}
Id GetTextureImage(Operation operation) {
const auto meta = std::get_if<MetaTexture>(&operation.GetMeta());
const auto entry = sampler_images.at(static_cast<u32>(meta->sampler.GetIndex()));
return Emit(OpImage(entry.image_type, GetTextureSampler(operation)));
}
Id GetTextureCoordinates(Operation operation) {
const auto meta = std::get_if<MetaTexture>(&operation.GetMeta());
std::vector<Id> coords;
for (std::size_t i = 0; i < operation.GetOperandsCount(); ++i) {
coords.push_back(Visit(operation[i]));
}
if (meta->sampler.IsArray()) {
const Id array_integer = BitcastTo<Type::Int>(Visit(meta->array));
coords.push_back(Emit(OpConvertSToF(t_float, array_integer)));
}
if (meta->sampler.IsShadow()) {
coords.push_back(Visit(meta->depth_compare));
}
const std::array<Id, 4> t_float_lut = {nullptr, t_float2, t_float3, t_float4};
return coords.size() == 1
? coords[0]
: Emit(OpCompositeConstruct(t_float_lut.at(coords.size() - 1), coords));
}
Id Texture(Operation operation) {
UNIMPLEMENTED();
return {};