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authorReinUsesLisp <reinuseslisp@airmail.cc>2019-03-14 06:47:09 +0100
committerReinUsesLisp <reinuseslisp@airmail.cc>2019-04-10 19:20:25 +0200
commit58ad8dfac61c6532ebfb69179ed82f812a104a8a (patch)
tree312979f5972bc8a336afc953a8d43e1e78d1b484
parentvk_shader_decompiler: Implement texture decompilation helper functions (diff)
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-rw-r--r--src/video_core/renderer_vulkan/vk_shader_decompiler.cpp73
1 files changed, 65 insertions, 8 deletions
diff --git a/src/video_core/renderer_vulkan/vk_shader_decompiler.cpp b/src/video_core/renderer_vulkan/vk_shader_decompiler.cpp
index 3f23ba749..6c5c6500a 100644
--- a/src/video_core/renderer_vulkan/vk_shader_decompiler.cpp
+++ b/src/video_core/renderer_vulkan/vk_shader_decompiler.cpp
@@ -836,24 +836,81 @@ private:
: Emit(OpCompositeConstruct(t_float_lut.at(coords.size() - 1), coords));
}
+ Id GetTextureElement(Operation operation, Id sample_value) {
+ const auto meta = std::get_if<MetaTexture>(&operation.GetMeta());
+ ASSERT(meta);
+ return Emit(OpCompositeExtract(t_float, sample_value, meta->element));
+ }
+
Id Texture(Operation operation) {
- UNIMPLEMENTED();
- return {};
+ const Id texture = Emit(OpImageSampleImplicitLod(t_float4, GetTextureSampler(operation),
+ GetTextureCoordinates(operation)));
+ return GetTextureElement(operation, texture);
}
Id TextureLod(Operation operation) {
- UNIMPLEMENTED();
- return {};
+ const auto meta = std::get_if<MetaTexture>(&operation.GetMeta());
+ const Id texture = Emit(OpImageSampleExplicitLod(
+ t_float4, GetTextureSampler(operation), GetTextureCoordinates(operation),
+ spv::ImageOperandsMask::Lod, Visit(meta->lod)));
+ return GetTextureElement(operation, texture);
}
Id TextureGather(Operation operation) {
- UNIMPLEMENTED();
- return {};
+ const auto meta = std::get_if<MetaTexture>(&operation.GetMeta());
+ const auto coords = GetTextureCoordinates(operation);
+
+ Id texture;
+ if (meta->sampler.IsShadow()) {
+ texture = Emit(OpImageDrefGather(t_float4, GetTextureSampler(operation), coords,
+ Visit(meta->component)));
+ } else {
+ u32 component_value = 0;
+ if (meta->component) {
+ const auto component = std::get_if<ImmediateNode>(meta->component);
+ ASSERT_MSG(component, "Component is not an immediate value");
+ component_value = component->GetValue();
+ }
+ texture = Emit(OpImageGather(t_float4, GetTextureSampler(operation), coords,
+ Constant(t_uint, component_value)));
+ }
+
+ return GetTextureElement(operation, texture);
}
Id TextureQueryDimensions(Operation operation) {
- UNIMPLEMENTED();
- return {};
+ const auto meta = std::get_if<MetaTexture>(&operation.GetMeta());
+ const auto image_id = GetTextureImage(operation);
+ AddCapability(spv::Capability::ImageQuery);
+
+ if (meta->element == 3) {
+ return BitcastTo<Type::Float>(Emit(OpImageQueryLevels(t_int, image_id)));
+ }
+
+ const Id lod = VisitOperand<Type::Uint>(operation, 0);
+ const std::size_t coords_count = [&]() {
+ switch (const auto type = meta->sampler.GetType(); type) {
+ case Tegra::Shader::TextureType::Texture1D:
+ return 1;
+ case Tegra::Shader::TextureType::Texture2D:
+ case Tegra::Shader::TextureType::TextureCube:
+ return 2;
+ case Tegra::Shader::TextureType::Texture3D:
+ return 3;
+ default:
+ UNREACHABLE_MSG("Invalid texture type={}", static_cast<u32>(type));
+ return 2;
+ }
+ }();
+
+ if (meta->element >= coords_count) {
+ return Constant(t_float, 0.0f);
+ }
+
+ const std::array<Id, 3> types = {t_int, t_int2, t_int3};
+ const Id sizes = Emit(OpImageQuerySizeLod(types.at(coords_count - 1), image_id, lod));
+ const Id size = Emit(OpCompositeExtract(t_int, sizes, meta->element));
+ return BitcastTo<Type::Float>(size);
}
Id TextureQueryLod(Operation operation) {