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-rw-r--r--src/video_core/engines/shader_bytecode.h76
-rw-r--r--src/video_core/renderer_opengl/gl_shader_decompiler.cpp157
-rw-r--r--src/video_core/renderer_opengl/gl_shader_gen.h50
3 files changed, 250 insertions, 33 deletions
diff --git a/src/video_core/engines/shader_bytecode.h b/src/video_core/engines/shader_bytecode.h
index 9413a81fb..3ba6fe614 100644
--- a/src/video_core/engines/shader_bytecode.h
+++ b/src/video_core/engines/shader_bytecode.h
@@ -223,6 +223,13 @@ enum class PredicateResultMode : u64 {
NotZero = 0x3,
};
+enum class TextureType : u64 {
+ Texture1D = 0,
+ Texture2D = 1,
+ Texture3D = 2,
+ TextureCube = 3,
+};
+
union Instruction {
Instruction& operator=(const Instruction& instr) {
value = instr.value;
@@ -434,6 +441,8 @@ union Instruction {
} conversion;
union {
+ BitField<28, 1, u64> array;
+ BitField<29, 2, TextureType> texture_type;
BitField<31, 4, u64> component_mask;
bool IsComponentEnabled(size_t component) const {
@@ -442,9 +451,39 @@ union Instruction {
} tex;
union {
- BitField<50, 3, u64> component_mask_selector;
+ BitField<28, 1, u64> array;
+ BitField<29, 2, TextureType> texture_type;
+ BitField<56, 2, u64> component;
+ } tld4;
+
+ union {
+ BitField<52, 2, u64> component;
+ } tld4s;
+
+ union {
BitField<0, 8, Register> gpr0;
BitField<28, 8, Register> gpr28;
+ BitField<50, 3, u64> component_mask_selector;
+ BitField<53, 4, u64> texture_info;
+
+ TextureType GetTextureType() const {
+ // The TEXS instruction has a weird encoding for the texture type.
+ if (texture_info == 0)
+ return TextureType::Texture1D;
+ if (texture_info >= 1 && texture_info <= 9)
+ return TextureType::Texture2D;
+ if (texture_info >= 10 && texture_info <= 11)
+ return TextureType::Texture3D;
+ if (texture_info >= 12 && texture_info <= 13)
+ return TextureType::TextureCube;
+
+ UNIMPLEMENTED();
+ }
+
+ bool IsArrayTexture() const {
+ // TEXS only supports Texture2D arrays.
+ return texture_info >= 7 && texture_info <= 9;
+ }
bool HasTwoDestinations() const {
return gpr28.Value() != Register::ZeroIndex;
@@ -469,6 +508,31 @@ union Instruction {
} texs;
union {
+ BitField<53, 4, u64> texture_info;
+
+ TextureType GetTextureType() const {
+ // The TLDS instruction has a weird encoding for the texture type.
+ if (texture_info >= 0 && texture_info <= 1) {
+ return TextureType::Texture1D;
+ }
+ if (texture_info == 2 || texture_info == 8 || texture_info == 12 ||
+ texture_info >= 4 && texture_info <= 6) {
+ return TextureType::Texture2D;
+ }
+ if (texture_info == 7) {
+ return TextureType::Texture3D;
+ }
+
+ UNIMPLEMENTED();
+ }
+
+ bool IsArrayTexture() const {
+ // TEXS only supports Texture2D arrays.
+ return texture_info == 8;
+ }
+ } tlds;
+
+ union {
BitField<20, 24, u64> target;
BitField<5, 1, u64> constant_buffer;
@@ -533,9 +597,11 @@ public:
LDG, // Load from global memory
STG, // Store in global memory
TEX,
- TEXQ, // Texture Query
- TEXS, // Texture Fetch with scalar/non-vec4 source/destinations
- TLDS, // Texture Load with scalar/non-vec4 source/destinations
+ TEXQ, // Texture Query
+ TEXS, // Texture Fetch with scalar/non-vec4 source/destinations
+ TLDS, // Texture Load with scalar/non-vec4 source/destinations
+ TLD4, // Texture Load 4
+ TLD4S, // Texture Load 4 with scalar / non - vec4 source / destinations
EXIT,
IPA,
FFMA_IMM, // Fused Multiply and Add
@@ -749,6 +815,8 @@ private:
INST("1101111101001---", Id::TEXQ, Type::Memory, "TEXQ"),
INST("1101100---------", Id::TEXS, Type::Memory, "TEXS"),
INST("1101101---------", Id::TLDS, Type::Memory, "TLDS"),
+ INST("110010----111---", Id::TLD4, Type::Memory, "TLD4"),
+ INST("1101111100------", Id::TLD4S, Type::Memory, "TLD4S"),
INST("111000110000----", Id::EXIT, Type::Trivial, "EXIT"),
INST("11100000--------", Id::IPA, Type::Trivial, "IPA"),
INST("0011001-1-------", Id::FFMA_IMM, Type::Ffma, "FFMA_IMM"),
diff --git a/src/video_core/renderer_opengl/gl_shader_decompiler.cpp b/src/video_core/renderer_opengl/gl_shader_decompiler.cpp
index 57cf9f213..f3b2d1328 100644
--- a/src/video_core/renderer_opengl/gl_shader_decompiler.cpp
+++ b/src/video_core/renderer_opengl/gl_shader_decompiler.cpp
@@ -439,13 +439,12 @@ public:
}
declarations.AddNewLine();
- // Append the sampler2D array for the used textures.
- size_t num_samplers = GetSamplers().size();
- if (num_samplers > 0) {
- declarations.AddLine("uniform sampler2D " + SamplerEntry::GetArrayName(stage) + '[' +
- std::to_string(num_samplers) + "];");
- declarations.AddNewLine();
+ const auto& samplers = GetSamplers();
+ for (const auto& sampler : samplers) {
+ declarations.AddLine("uniform " + sampler.GetTypeString() + ' ' + sampler.GetName() +
+ ';');
}
+ declarations.AddNewLine();
}
/// Returns a list of constant buffer declarations
@@ -457,13 +456,14 @@ public:
}
/// Returns a list of samplers used in the shader
- std::vector<SamplerEntry> GetSamplers() const {
+ const std::vector<SamplerEntry>& GetSamplers() const {
return used_samplers;
}
/// Returns the GLSL sampler used for the input shader sampler, and creates a new one if
/// necessary.
- std::string AccessSampler(const Sampler& sampler) {
+ std::string AccessSampler(const Sampler& sampler, Tegra::Shader::TextureType type,
+ bool is_array) {
size_t offset = static_cast<size_t>(sampler.index.Value());
// If this sampler has already been used, return the existing mapping.
@@ -472,12 +472,13 @@ public:
[&](const SamplerEntry& entry) { return entry.GetOffset() == offset; });
if (itr != used_samplers.end()) {
+ ASSERT(itr->GetType() == type && itr->IsArray() == is_array);
return itr->GetName();
}
// Otherwise create a new mapping for this sampler
size_t next_index = used_samplers.size();
- SamplerEntry entry{stage, offset, next_index};
+ SamplerEntry entry{stage, offset, next_index, type, is_array};
used_samplers.emplace_back(entry);
return entry.GetName();
}
@@ -638,8 +639,8 @@ private:
}
/// Generates code representing a texture sampler.
- std::string GetSampler(const Sampler& sampler) {
- return regs.AccessSampler(sampler);
+ std::string GetSampler(const Sampler& sampler, Tegra::Shader::TextureType type, bool is_array) {
+ return regs.AccessSampler(sampler, type, is_array);
}
/**
@@ -1507,10 +1508,29 @@ private:
break;
}
case OpCode::Id::TEX: {
- const std::string op_a = regs.GetRegisterAsFloat(instr.gpr8);
- const std::string op_b = regs.GetRegisterAsFloat(instr.gpr8.Value() + 1);
- const std::string sampler = GetSampler(instr.sampler);
- const std::string coord = "vec2 coords = vec2(" + op_a + ", " + op_b + ");";
+ ASSERT_MSG(instr.tex.array == 0, "TEX arrays unimplemented");
+ std::string coord{};
+
+ switch (instr.tex.texture_type) {
+ case Tegra::Shader::TextureType::Texture2D: {
+ std::string x = regs.GetRegisterAsFloat(instr.gpr8);
+ std::string y = regs.GetRegisterAsFloat(instr.gpr20);
+ coord = "vec2 coords = vec2(" + x + ", " + y + ");";
+ break;
+ }
+ case Tegra::Shader::TextureType::Texture3D: {
+ std::string x = regs.GetRegisterAsFloat(instr.gpr8);
+ std::string y = regs.GetRegisterAsFloat(instr.gpr8.Value() + 1);
+ std::string z = regs.GetRegisterAsFloat(instr.gpr20);
+ coord = "vec3 coords = vec3(" + x + ", " + y + ", " + z + ");";
+ break;
+ }
+ default:
+ UNIMPLEMENTED();
+ }
+
+ const std::string sampler =
+ GetSampler(instr.sampler, instr.tex.texture_type, instr.tex.array);
// Add an extra scope and declare the texture coords inside to prevent
// overwriting them in case they are used as outputs of the texs instruction.
shader.AddLine("{");
@@ -1532,24 +1552,115 @@ private:
break;
}
case OpCode::Id::TEXS: {
- const std::string op_a = regs.GetRegisterAsFloat(instr.gpr8);
- const std::string op_b = regs.GetRegisterAsFloat(instr.gpr20);
- const std::string sampler = GetSampler(instr.sampler);
- const std::string coord = "vec2 coords = vec2(" + op_a + ", " + op_b + ");";
+ std::string coord{};
+
+ switch (instr.texs.GetTextureType()) {
+ case Tegra::Shader::TextureType::Texture2D: {
+ if (instr.texs.IsArrayTexture()) {
+ std::string index = regs.GetRegisterAsInteger(instr.gpr8);
+ std::string x = regs.GetRegisterAsFloat(instr.gpr8.Value() + 1);
+ std::string y = regs.GetRegisterAsFloat(instr.gpr20);
+ coord = "vec3 coords = vec3(" + x + ", " + y + ", " + index + ");";
+ } else {
+ std::string x = regs.GetRegisterAsFloat(instr.gpr8);
+ std::string y = regs.GetRegisterAsFloat(instr.gpr20);
+ coord = "vec2 coords = vec2(" + x + ", " + y + ");";
+ }
+ break;
+ }
+ case Tegra::Shader::TextureType::TextureCube: {
+ std::string x = regs.GetRegisterAsFloat(instr.gpr8);
+ std::string y = regs.GetRegisterAsFloat(instr.gpr8.Value() + 1);
+ std::string z = regs.GetRegisterAsFloat(instr.gpr20);
+ coord = "vec3 coords = vec3(" + x + ", " + y + ", " + z + ");";
+ break;
+ }
+ default:
+ UNIMPLEMENTED();
+ }
+ const std::string sampler = GetSampler(instr.sampler, instr.texs.GetTextureType(),
+ instr.texs.IsArrayTexture());
const std::string texture = "texture(" + sampler + ", coords)";
WriteTexsInstruction(instr, coord, texture);
break;
}
case OpCode::Id::TLDS: {
- const std::string op_a = regs.GetRegisterAsInteger(instr.gpr8);
- const std::string op_b = regs.GetRegisterAsInteger(instr.gpr20);
- const std::string sampler = GetSampler(instr.sampler);
- const std::string coord = "ivec2 coords = ivec2(" + op_a + ", " + op_b + ");";
+ ASSERT(instr.tlds.GetTextureType() == Tegra::Shader::TextureType::Texture2D);
+ ASSERT(instr.tlds.IsArrayTexture() == false);
+ std::string coord{};
+
+ switch (instr.tlds.GetTextureType()) {
+ case Tegra::Shader::TextureType::Texture2D: {
+ if (instr.tlds.IsArrayTexture()) {
+ UNIMPLEMENTED();
+ } else {
+ std::string x = regs.GetRegisterAsInteger(instr.gpr8);
+ std::string y = regs.GetRegisterAsInteger(instr.gpr20);
+ coord = "ivec2 coords = ivec2(" + x + ", " + y + ");";
+ }
+ break;
+ }
+ default:
+ UNIMPLEMENTED();
+ }
+ const std::string sampler = GetSampler(instr.sampler, instr.tlds.GetTextureType(),
+ instr.tlds.IsArrayTexture());
const std::string texture = "texelFetch(" + sampler + ", coords, 0)";
WriteTexsInstruction(instr, coord, texture);
break;
}
+ case OpCode::Id::TLD4: {
+ ASSERT(instr.tld4.texture_type == Tegra::Shader::TextureType::Texture2D);
+ ASSERT(instr.tld4.array == 0);
+ std::string coord{};
+
+ switch (instr.tld4.texture_type) {
+ case Tegra::Shader::TextureType::Texture2D: {
+ std::string x = regs.GetRegisterAsFloat(instr.gpr8);
+ std::string y = regs.GetRegisterAsFloat(instr.gpr8.Value() + 1);
+ coord = "vec2 coords = vec2(" + x + ", " + y + ");";
+ break;
+ }
+ default:
+ UNIMPLEMENTED();
+ }
+
+ const std::string sampler =
+ GetSampler(instr.sampler, instr.tld4.texture_type, instr.tld4.array);
+ // Add an extra scope and declare the texture coords inside to prevent
+ // overwriting them in case they are used as outputs of the texs instruction.
+ shader.AddLine("{");
+ ++shader.scope;
+ shader.AddLine(coord);
+ const std::string texture = "textureGather(" + sampler + ", coords, " +
+ std::to_string(instr.tld4.component) + ')';
+
+ size_t dest_elem{};
+ for (size_t elem = 0; elem < 4; ++elem) {
+ if (!instr.tex.IsComponentEnabled(elem)) {
+ // Skip disabled components
+ continue;
+ }
+ regs.SetRegisterToFloat(instr.gpr0, elem, texture, 1, 4, false, dest_elem);
+ ++dest_elem;
+ }
+ --shader.scope;
+ shader.AddLine("}");
+ break;
+ }
+ case OpCode::Id::TLD4S: {
+ const std::string op_a = regs.GetRegisterAsFloat(instr.gpr8);
+ 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: {
LOG_CRITICAL(HW_GPU, "Unhandled memory instruction: {}", opcode->GetName());
UNREACHABLE();
diff --git a/src/video_core/renderer_opengl/gl_shader_gen.h b/src/video_core/renderer_opengl/gl_shader_gen.h
index 4729ce0fc..db48da645 100644
--- a/src/video_core/renderer_opengl/gl_shader_gen.h
+++ b/src/video_core/renderer_opengl/gl_shader_gen.h
@@ -11,6 +11,7 @@
#include <vector>
#include "common/common_types.h"
#include "common/hash.h"
+#include "video_core/engines/shader_bytecode.h"
namespace GLShader {
@@ -72,8 +73,9 @@ class SamplerEntry {
using Maxwell = Tegra::Engines::Maxwell3D::Regs;
public:
- SamplerEntry(Maxwell::ShaderStage stage, size_t offset, size_t index)
- : offset(offset), stage(stage), sampler_index(index) {}
+ SamplerEntry(Maxwell::ShaderStage stage, size_t offset, size_t 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 {
return offset;
@@ -88,8 +90,41 @@ public:
}
std::string GetName() const {
- return std::string(TextureSamplerNames[static_cast<size_t>(stage)]) + '[' +
- std::to_string(sampler_index) + ']';
+ return std::string(TextureSamplerNames[static_cast<size_t>(stage)]) + '_' +
+ 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) {
@@ -100,11 +135,14 @@ private:
static constexpr std::array<const char*, Maxwell::MaxShaderStage> TextureSamplerNames = {
"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
/// instruction.
size_t offset;
- Maxwell::ShaderStage stage; ///< Shader stage where this sampler was used.
- size_t sampler_index; ///< Value used to index into the generated GLSL sampler array.
+ Maxwell::ShaderStage stage; ///< Shader stage where this sampler was used.
+ 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 {
generated by cgit v1.2.3 (git 2.25.1) at 2024-08-19 02:19:34 +0200