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Merge pull request #1112 from Subv/sampler_types
Shaders: Use the correct shader type when sampling textures.
This commit is contained in:
commit
b20ed93884
3 changed files with 250 additions and 33 deletions
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@ -223,6 +223,13 @@ enum class PredicateResultMode : u64 {
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NotZero = 0x3,
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NotZero = 0x3,
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};
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};
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enum class TextureType : u64 {
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Texture1D = 0,
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Texture2D = 1,
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Texture3D = 2,
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TextureCube = 3,
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};
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union Instruction {
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union Instruction {
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Instruction& operator=(const Instruction& instr) {
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Instruction& operator=(const Instruction& instr) {
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value = instr.value;
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value = instr.value;
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@ -434,6 +441,8 @@ union Instruction {
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} conversion;
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} conversion;
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union {
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union {
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BitField<28, 1, u64> array;
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BitField<29, 2, TextureType> texture_type;
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BitField<31, 4, u64> component_mask;
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BitField<31, 4, u64> component_mask;
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bool IsComponentEnabled(size_t component) const {
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bool IsComponentEnabled(size_t component) const {
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@ -442,9 +451,39 @@ union Instruction {
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} tex;
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} tex;
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union {
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union {
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BitField<50, 3, u64> component_mask_selector;
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BitField<28, 1, u64> array;
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BitField<29, 2, TextureType> texture_type;
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BitField<56, 2, u64> component;
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} tld4;
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union {
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BitField<52, 2, u64> component;
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} tld4s;
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union {
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BitField<0, 8, Register> gpr0;
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BitField<0, 8, Register> gpr0;
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BitField<28, 8, Register> gpr28;
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BitField<28, 8, Register> gpr28;
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BitField<50, 3, u64> component_mask_selector;
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BitField<53, 4, u64> texture_info;
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TextureType GetTextureType() const {
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// The TEXS instruction has a weird encoding for the texture type.
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if (texture_info == 0)
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return TextureType::Texture1D;
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if (texture_info >= 1 && texture_info <= 9)
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return TextureType::Texture2D;
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if (texture_info >= 10 && texture_info <= 11)
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return TextureType::Texture3D;
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if (texture_info >= 12 && texture_info <= 13)
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return TextureType::TextureCube;
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UNIMPLEMENTED();
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}
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bool IsArrayTexture() const {
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// TEXS only supports Texture2D arrays.
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return texture_info >= 7 && texture_info <= 9;
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}
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bool HasTwoDestinations() const {
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bool HasTwoDestinations() const {
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return gpr28.Value() != Register::ZeroIndex;
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return gpr28.Value() != Register::ZeroIndex;
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@ -468,6 +507,31 @@ union Instruction {
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}
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}
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} texs;
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} texs;
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union {
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BitField<53, 4, u64> texture_info;
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TextureType GetTextureType() const {
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// The TLDS instruction has a weird encoding for the texture type.
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if (texture_info >= 0 && texture_info <= 1) {
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return TextureType::Texture1D;
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}
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if (texture_info == 2 || texture_info == 8 || texture_info == 12 ||
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texture_info >= 4 && texture_info <= 6) {
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return TextureType::Texture2D;
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}
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if (texture_info == 7) {
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return TextureType::Texture3D;
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}
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UNIMPLEMENTED();
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}
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bool IsArrayTexture() const {
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// TEXS only supports Texture2D arrays.
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return texture_info == 8;
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}
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} tlds;
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union {
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union {
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BitField<20, 24, u64> target;
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BitField<20, 24, u64> target;
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BitField<5, 1, u64> constant_buffer;
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BitField<5, 1, u64> constant_buffer;
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@ -533,9 +597,11 @@ public:
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LDG, // Load from global memory
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LDG, // Load from global memory
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STG, // Store in global memory
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STG, // Store in global memory
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TEX,
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TEX,
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TEXQ, // Texture Query
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TEXQ, // Texture Query
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TEXS, // Texture Fetch with scalar/non-vec4 source/destinations
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TEXS, // Texture Fetch with scalar/non-vec4 source/destinations
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TLDS, // Texture Load with scalar/non-vec4 source/destinations
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TLDS, // Texture Load with scalar/non-vec4 source/destinations
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TLD4, // Texture Load 4
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TLD4S, // Texture Load 4 with scalar / non - vec4 source / destinations
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EXIT,
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EXIT,
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IPA,
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IPA,
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FFMA_IMM, // Fused Multiply and Add
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FFMA_IMM, // Fused Multiply and Add
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@ -749,6 +815,8 @@ private:
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INST("1101111101001---", Id::TEXQ, Type::Memory, "TEXQ"),
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INST("1101111101001---", Id::TEXQ, Type::Memory, "TEXQ"),
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INST("1101100---------", Id::TEXS, Type::Memory, "TEXS"),
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INST("1101100---------", Id::TEXS, Type::Memory, "TEXS"),
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INST("1101101---------", Id::TLDS, Type::Memory, "TLDS"),
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INST("1101101---------", Id::TLDS, Type::Memory, "TLDS"),
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INST("110010----111---", Id::TLD4, Type::Memory, "TLD4"),
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INST("1101111100------", Id::TLD4S, Type::Memory, "TLD4S"),
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INST("111000110000----", Id::EXIT, Type::Trivial, "EXIT"),
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INST("111000110000----", Id::EXIT, Type::Trivial, "EXIT"),
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INST("11100000--------", Id::IPA, Type::Trivial, "IPA"),
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INST("11100000--------", Id::IPA, Type::Trivial, "IPA"),
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INST("0011001-1-------", Id::FFMA_IMM, Type::Ffma, "FFMA_IMM"),
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INST("0011001-1-------", Id::FFMA_IMM, Type::Ffma, "FFMA_IMM"),
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@ -439,13 +439,12 @@ public:
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}
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}
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declarations.AddNewLine();
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declarations.AddNewLine();
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// Append the sampler2D array for the used textures.
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const auto& samplers = GetSamplers();
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size_t num_samplers = GetSamplers().size();
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for (const auto& sampler : samplers) {
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if (num_samplers > 0) {
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declarations.AddLine("uniform " + sampler.GetTypeString() + ' ' + sampler.GetName() +
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declarations.AddLine("uniform sampler2D " + SamplerEntry::GetArrayName(stage) + '[' +
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';');
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std::to_string(num_samplers) + "];");
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declarations.AddNewLine();
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}
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}
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declarations.AddNewLine();
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}
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}
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/// Returns a list of constant buffer declarations
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/// Returns a list of constant buffer declarations
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@ -457,13 +456,14 @@ public:
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}
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}
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/// Returns a list of samplers used in the shader
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/// Returns a list of samplers used in the shader
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std::vector<SamplerEntry> GetSamplers() const {
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const std::vector<SamplerEntry>& GetSamplers() const {
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return used_samplers;
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return used_samplers;
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}
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}
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/// Returns the GLSL sampler used for the input shader sampler, and creates a new one if
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/// Returns the GLSL sampler used for the input shader sampler, and creates a new one if
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/// necessary.
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/// necessary.
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std::string AccessSampler(const Sampler& sampler) {
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std::string AccessSampler(const Sampler& sampler, Tegra::Shader::TextureType type,
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bool is_array) {
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size_t offset = static_cast<size_t>(sampler.index.Value());
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size_t offset = static_cast<size_t>(sampler.index.Value());
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// If this sampler has already been used, return the existing mapping.
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// If this sampler has already been used, return the existing mapping.
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@ -472,12 +472,13 @@ public:
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[&](const SamplerEntry& entry) { return entry.GetOffset() == offset; });
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[&](const SamplerEntry& entry) { return entry.GetOffset() == offset; });
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if (itr != used_samplers.end()) {
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if (itr != used_samplers.end()) {
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ASSERT(itr->GetType() == type && itr->IsArray() == is_array);
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return itr->GetName();
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return itr->GetName();
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}
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}
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// Otherwise create a new mapping for this sampler
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// Otherwise create a new mapping for this sampler
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size_t next_index = used_samplers.size();
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size_t next_index = used_samplers.size();
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SamplerEntry entry{stage, offset, next_index};
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SamplerEntry entry{stage, offset, next_index, type, is_array};
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used_samplers.emplace_back(entry);
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used_samplers.emplace_back(entry);
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return entry.GetName();
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return entry.GetName();
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}
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}
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@ -638,8 +639,8 @@ private:
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}
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}
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/// Generates code representing a texture sampler.
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/// Generates code representing a texture sampler.
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std::string GetSampler(const Sampler& sampler) {
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std::string GetSampler(const Sampler& sampler, Tegra::Shader::TextureType type, bool is_array) {
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return regs.AccessSampler(sampler);
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return regs.AccessSampler(sampler, type, is_array);
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}
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}
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/**
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/**
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@ -1507,10 +1508,29 @@ private:
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break;
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break;
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}
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}
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case OpCode::Id::TEX: {
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case OpCode::Id::TEX: {
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const std::string op_a = regs.GetRegisterAsFloat(instr.gpr8);
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ASSERT_MSG(instr.tex.array == 0, "TEX arrays unimplemented");
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const std::string op_b = regs.GetRegisterAsFloat(instr.gpr8.Value() + 1);
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std::string coord{};
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const std::string sampler = GetSampler(instr.sampler);
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const std::string coord = "vec2 coords = vec2(" + op_a + ", " + op_b + ");";
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switch (instr.tex.texture_type) {
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case Tegra::Shader::TextureType::Texture2D: {
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std::string x = regs.GetRegisterAsFloat(instr.gpr8);
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std::string y = regs.GetRegisterAsFloat(instr.gpr20);
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coord = "vec2 coords = vec2(" + x + ", " + y + ");";
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break;
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}
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case Tegra::Shader::TextureType::Texture3D: {
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std::string x = regs.GetRegisterAsFloat(instr.gpr8);
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std::string y = regs.GetRegisterAsFloat(instr.gpr8.Value() + 1);
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std::string z = regs.GetRegisterAsFloat(instr.gpr20);
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coord = "vec3 coords = vec3(" + x + ", " + y + ", " + z + ");";
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break;
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}
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default:
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UNIMPLEMENTED();
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}
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const std::string sampler =
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GetSampler(instr.sampler, instr.tex.texture_type, instr.tex.array);
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// Add an extra scope and declare the texture coords inside to prevent
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// Add an extra scope and declare the texture coords inside to prevent
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// overwriting them in case they are used as outputs of the texs instruction.
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// overwriting them in case they are used as outputs of the texs instruction.
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shader.AddLine("{");
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shader.AddLine("{");
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@ -1532,24 +1552,115 @@ private:
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break;
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break;
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}
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}
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case OpCode::Id::TEXS: {
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case OpCode::Id::TEXS: {
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const std::string op_a = regs.GetRegisterAsFloat(instr.gpr8);
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std::string coord{};
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const std::string op_b = regs.GetRegisterAsFloat(instr.gpr20);
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const std::string sampler = GetSampler(instr.sampler);
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switch (instr.texs.GetTextureType()) {
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const std::string coord = "vec2 coords = vec2(" + op_a + ", " + op_b + ");";
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case Tegra::Shader::TextureType::Texture2D: {
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if (instr.texs.IsArrayTexture()) {
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std::string index = regs.GetRegisterAsInteger(instr.gpr8);
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std::string x = regs.GetRegisterAsFloat(instr.gpr8.Value() + 1);
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std::string y = regs.GetRegisterAsFloat(instr.gpr20);
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coord = "vec3 coords = vec3(" + x + ", " + y + ", " + index + ");";
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} else {
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std::string x = regs.GetRegisterAsFloat(instr.gpr8);
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std::string y = regs.GetRegisterAsFloat(instr.gpr20);
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coord = "vec2 coords = vec2(" + x + ", " + y + ");";
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}
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break;
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}
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case Tegra::Shader::TextureType::TextureCube: {
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std::string x = regs.GetRegisterAsFloat(instr.gpr8);
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std::string y = regs.GetRegisterAsFloat(instr.gpr8.Value() + 1);
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std::string z = regs.GetRegisterAsFloat(instr.gpr20);
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coord = "vec3 coords = vec3(" + x + ", " + y + ", " + z + ");";
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break;
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}
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default:
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UNIMPLEMENTED();
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}
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const std::string sampler = GetSampler(instr.sampler, instr.texs.GetTextureType(),
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instr.texs.IsArrayTexture());
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const std::string texture = "texture(" + sampler + ", coords)";
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const std::string texture = "texture(" + sampler + ", coords)";
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WriteTexsInstruction(instr, coord, texture);
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WriteTexsInstruction(instr, coord, texture);
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break;
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break;
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}
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}
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case OpCode::Id::TLDS: {
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case OpCode::Id::TLDS: {
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const std::string op_a = regs.GetRegisterAsInteger(instr.gpr8);
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ASSERT(instr.tlds.GetTextureType() == Tegra::Shader::TextureType::Texture2D);
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const std::string op_b = regs.GetRegisterAsInteger(instr.gpr20);
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ASSERT(instr.tlds.IsArrayTexture() == false);
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const std::string sampler = GetSampler(instr.sampler);
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std::string coord{};
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const std::string coord = "ivec2 coords = ivec2(" + op_a + ", " + op_b + ");";
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switch (instr.tlds.GetTextureType()) {
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case Tegra::Shader::TextureType::Texture2D: {
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if (instr.tlds.IsArrayTexture()) {
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UNIMPLEMENTED();
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} else {
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std::string x = regs.GetRegisterAsInteger(instr.gpr8);
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std::string y = regs.GetRegisterAsInteger(instr.gpr20);
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coord = "ivec2 coords = ivec2(" + x + ", " + y + ");";
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}
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break;
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}
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default:
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UNIMPLEMENTED();
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}
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const std::string sampler = GetSampler(instr.sampler, instr.tlds.GetTextureType(),
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instr.tlds.IsArrayTexture());
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const std::string texture = "texelFetch(" + sampler + ", coords, 0)";
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const std::string texture = "texelFetch(" + sampler + ", coords, 0)";
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WriteTexsInstruction(instr, coord, texture);
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WriteTexsInstruction(instr, coord, texture);
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break;
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break;
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}
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}
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case OpCode::Id::TLD4: {
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ASSERT(instr.tld4.texture_type == Tegra::Shader::TextureType::Texture2D);
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ASSERT(instr.tld4.array == 0);
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std::string coord{};
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switch (instr.tld4.texture_type) {
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case Tegra::Shader::TextureType::Texture2D: {
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std::string x = regs.GetRegisterAsFloat(instr.gpr8);
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std::string y = regs.GetRegisterAsFloat(instr.gpr8.Value() + 1);
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coord = "vec2 coords = vec2(" + x + ", " + y + ");";
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break;
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}
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default:
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UNIMPLEMENTED();
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}
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const std::string sampler =
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GetSampler(instr.sampler, instr.tld4.texture_type, instr.tld4.array);
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// Add an extra scope and declare the texture coords inside to prevent
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// overwriting them in case they are used as outputs of the texs instruction.
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shader.AddLine("{");
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++shader.scope;
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shader.AddLine(coord);
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const std::string texture = "textureGather(" + sampler + ", coords, " +
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std::to_string(instr.tld4.component) + ')';
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size_t dest_elem{};
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for (size_t elem = 0; elem < 4; ++elem) {
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if (!instr.tex.IsComponentEnabled(elem)) {
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// Skip disabled components
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continue;
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}
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regs.SetRegisterToFloat(instr.gpr0, elem, texture, 1, 4, false, dest_elem);
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++dest_elem;
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}
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--shader.scope;
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shader.AddLine("}");
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break;
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}
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case OpCode::Id::TLD4S: {
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const std::string op_a = regs.GetRegisterAsFloat(instr.gpr8);
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|
const std::string op_b = regs.GetRegisterAsFloat(instr.gpr20);
|
||||||
|
// TODO(Subv): Figure out how the sampler type is encoded in the TLD4S instruction.
|
||||||
|
const std::string sampler =
|
||||||
|
GetSampler(instr.sampler, Tegra::Shader::TextureType::Texture2D, false);
|
||||||
|
const std::string coord = "vec2 coords = vec2(" + op_a + ", " + op_b + ");";
|
||||||
|
const std::string texture = "textureGather(" + sampler + ", coords, " +
|
||||||
|
std::to_string(instr.tld4s.component) + ')';
|
||||||
|
WriteTexsInstruction(instr, coord, texture);
|
||||||
|
break;
|
||||||
|
}
|
||||||
default: {
|
default: {
|
||||||
LOG_CRITICAL(HW_GPU, "Unhandled memory instruction: {}", opcode->GetName());
|
LOG_CRITICAL(HW_GPU, "Unhandled memory instruction: {}", opcode->GetName());
|
||||||
UNREACHABLE();
|
UNREACHABLE();
|
||||||
|
|
|
@ -11,6 +11,7 @@
|
||||||
#include <vector>
|
#include <vector>
|
||||||
#include "common/common_types.h"
|
#include "common/common_types.h"
|
||||||
#include "common/hash.h"
|
#include "common/hash.h"
|
||||||
|
#include "video_core/engines/shader_bytecode.h"
|
||||||
|
|
||||||
namespace GLShader {
|
namespace GLShader {
|
||||||
|
|
||||||
|
@ -72,8 +73,9 @@ class SamplerEntry {
|
||||||
using Maxwell = Tegra::Engines::Maxwell3D::Regs;
|
using Maxwell = Tegra::Engines::Maxwell3D::Regs;
|
||||||
|
|
||||||
public:
|
public:
|
||||||
SamplerEntry(Maxwell::ShaderStage stage, size_t offset, size_t index)
|
SamplerEntry(Maxwell::ShaderStage stage, size_t offset, size_t index,
|
||||||
: offset(offset), stage(stage), sampler_index(index) {}
|
Tegra::Shader::TextureType type, bool is_array)
|
||||||
|
: offset(offset), stage(stage), sampler_index(index), type(type), is_array(is_array) {}
|
||||||
|
|
||||||
size_t GetOffset() const {
|
size_t GetOffset() const {
|
||||||
return offset;
|
return offset;
|
||||||
|
@ -88,8 +90,41 @@ public:
|
||||||
}
|
}
|
||||||
|
|
||||||
std::string GetName() const {
|
std::string GetName() const {
|
||||||
return std::string(TextureSamplerNames[static_cast<size_t>(stage)]) + '[' +
|
return std::string(TextureSamplerNames[static_cast<size_t>(stage)]) + '_' +
|
||||||
std::to_string(sampler_index) + ']';
|
std::to_string(sampler_index);
|
||||||
|
}
|
||||||
|
|
||||||
|
std::string GetTypeString() const {
|
||||||
|
using Tegra::Shader::TextureType;
|
||||||
|
std::string glsl_type;
|
||||||
|
|
||||||
|
switch (type) {
|
||||||
|
case TextureType::Texture1D:
|
||||||
|
glsl_type = "sampler1D";
|
||||||
|
break;
|
||||||
|
case TextureType::Texture2D:
|
||||||
|
glsl_type = "sampler2D";
|
||||||
|
break;
|
||||||
|
case TextureType::Texture3D:
|
||||||
|
glsl_type = "sampler3D";
|
||||||
|
break;
|
||||||
|
case TextureType::TextureCube:
|
||||||
|
glsl_type = "samplerCube";
|
||||||
|
break;
|
||||||
|
default:
|
||||||
|
UNIMPLEMENTED();
|
||||||
|
}
|
||||||
|
if (is_array)
|
||||||
|
glsl_type += "Array";
|
||||||
|
return glsl_type;
|
||||||
|
}
|
||||||
|
|
||||||
|
Tegra::Shader::TextureType GetType() const {
|
||||||
|
return type;
|
||||||
|
}
|
||||||
|
|
||||||
|
bool IsArray() const {
|
||||||
|
return is_array;
|
||||||
}
|
}
|
||||||
|
|
||||||
static std::string GetArrayName(Maxwell::ShaderStage stage) {
|
static std::string GetArrayName(Maxwell::ShaderStage stage) {
|
||||||
|
@ -100,11 +135,14 @@ private:
|
||||||
static constexpr std::array<const char*, Maxwell::MaxShaderStage> TextureSamplerNames = {
|
static constexpr std::array<const char*, Maxwell::MaxShaderStage> TextureSamplerNames = {
|
||||||
"tex_vs", "tex_tessc", "tex_tesse", "tex_gs", "tex_fs",
|
"tex_vs", "tex_tessc", "tex_tesse", "tex_gs", "tex_fs",
|
||||||
};
|
};
|
||||||
|
|
||||||
/// Offset in TSC memory from which to read the sampler object, as specified by the sampling
|
/// Offset in TSC memory from which to read the sampler object, as specified by the sampling
|
||||||
/// instruction.
|
/// instruction.
|
||||||
size_t offset;
|
size_t offset;
|
||||||
Maxwell::ShaderStage stage; ///< Shader stage where this sampler was used.
|
Maxwell::ShaderStage stage; ///< Shader stage where this sampler was used.
|
||||||
size_t sampler_index; ///< Value used to index into the generated GLSL sampler array.
|
size_t sampler_index; ///< Value used to index into the generated GLSL sampler array.
|
||||||
|
Tegra::Shader::TextureType type; ///< The type used to sample this texture (Texture2D, etc)
|
||||||
|
bool is_array; ///< Whether the texture is being sampled as an array texture or not.
|
||||||
};
|
};
|
||||||
|
|
||||||
struct ShaderEntries {
|
struct ShaderEntries {
|
||||||
|
|
Loading…
Reference in a new issue