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Merge pull request #1299 from FernandoS27/texture-sanatize

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shader_decompiler: Asserts for Texture Instructions
pull/8/head
bunnei 7 years ago committed by GitHub
parent 9155c8daeb 31e52113b3
commit 6415f81bb8
No known key found for this signature in database
GPG Key ID: 4AEE18F83AFDEB23
2 changed files with 192 additions and 3 deletions
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148
src/video_core/engines/shader_bytecode.h
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@ -271,6 +271,15 @@ enum class TextureProcessMode : u64 {
LLA = 7 // Load LOD. The A is unknown, does not appear to differ with LL
};
enum class TextureMiscMode : u64 {
DC,
AOFFI, // Uses Offset
NDV,
NODEP,
MZ,
PTP,
};
enum class IpaInterpMode : u64 { Linear = 0, Perspective = 1, Flat = 2, Sc = 3 };
enum class IpaSampleMode : u64 { Default = 0, Centroid = 1, Offset = 2 };
@ -590,42 +599,127 @@ union Instruction {
BitField<28, 1, u64> array;
BitField<29, 2, TextureType> texture_type;
BitField<31, 4, u64> component_mask;
BitField<49, 1, u64> nodep_flag;
BitField<50, 1, u64> dc_flag;
BitField<54, 1, u64> aoffi_flag;
BitField<55, 3, TextureProcessMode> process_mode;
bool IsComponentEnabled(std::size_t component) const {
return ((1ull << component) & component_mask) != 0;
}
TextureProcessMode GetTextureProcessMode() const {
return process_mode;
}
bool UsesMiscMode(TextureMiscMode mode) const {
switch (mode) {
case TextureMiscMode::DC:
return dc_flag != 0;
case TextureMiscMode::NODEP:
return nodep_flag != 0;
case TextureMiscMode::AOFFI:
return aoffi_flag != 0;
default:
break;
}
return false;
}
} tex;
union {
BitField<22, 6, TextureQueryType> query_type;
BitField<31, 4, u64> component_mask;
BitField<49, 1, u64> nodep_flag;
bool UsesMiscMode(TextureMiscMode mode) const {
switch (mode) {
case TextureMiscMode::NODEP:
return nodep_flag != 0;
default:
break;
}
return false;
}
} txq;
union {
BitField<28, 1, u64> array;
BitField<29, 2, TextureType> texture_type;
BitField<31, 4, u64> component_mask;
BitField<35, 1, u64> ndv_flag;
BitField<49, 1, u64> nodep_flag;
bool IsComponentEnabled(std::size_t component) const {
return ((1ull << component) & component_mask) != 0;
}
bool UsesMiscMode(TextureMiscMode mode) const {
switch (mode) {
case TextureMiscMode::NDV:
return (ndv_flag != 0);
case TextureMiscMode::NODEP:
return (nodep_flag != 0);
default:
break;
}
return false;
}
} tmml;
union {
BitField<28, 1, u64> array;
BitField<29, 2, TextureType> texture_type;
BitField<35, 1, u64> ndv_flag;
BitField<49, 1, u64> nodep_flag;
BitField<50, 1, u64> dc_flag;
BitField<54, 2, u64> info;
BitField<56, 2, u64> component;
bool UsesMiscMode(TextureMiscMode mode) const {
switch (mode) {
case TextureMiscMode::NDV:
return ndv_flag != 0;
case TextureMiscMode::NODEP:
return nodep_flag != 0;
case TextureMiscMode::DC:
return dc_flag != 0;
case TextureMiscMode::AOFFI:
return info == 1;
case TextureMiscMode::PTP:
return info == 2;
default:
break;
}
return false;
}
} tld4;
union {
BitField<49, 1, u64> nodep_flag;
BitField<50, 1, u64> dc_flag;
BitField<51, 1, u64> aoffi_flag;
BitField<52, 2, u64> component;
bool UsesMiscMode(TextureMiscMode mode) const {
switch (mode) {
case TextureMiscMode::DC:
return dc_flag != 0;
case TextureMiscMode::NODEP:
return nodep_flag != 0;
case TextureMiscMode::AOFFI:
return aoffi_flag != 0;
default:
break;
}
return false;
}
} tld4s;
union {
BitField<0, 8, Register> gpr0;
BitField<28, 8, Register> gpr28;
BitField<49, 1, u64> nodep;
BitField<49, 1, u64> nodep_flag;
BitField<50, 3, u64> component_mask_selector;
BitField<53, 4, u64> texture_info;
@ -645,6 +739,37 @@ union Instruction {
UNREACHABLE();
}
TextureProcessMode GetTextureProcessMode() const {
switch (texture_info) {
case 0:
case 2:
case 6:
case 8:
case 9:
case 11:
return TextureProcessMode::LZ;
case 3:
case 5:
case 13:
return TextureProcessMode::LL;
default:
break;
}
return TextureProcessMode::None;
}
bool UsesMiscMode(TextureMiscMode mode) const {
switch (mode) {
case TextureMiscMode::DC:
return (texture_info >= 4 && texture_info <= 6) || texture_info == 9;
case TextureMiscMode::NODEP:
return nodep_flag != 0;
default:
break;
}
return false;
}
bool IsArrayTexture() const {
// TEXS only supports Texture2D arrays.
return texture_info >= 7 && texture_info <= 9;
@ -673,6 +798,7 @@ union Instruction {
} texs;
union {
BitField<49, 1, u64> nodep_flag;
BitField<53, 4, u64> texture_info;
TextureType GetTextureType() const {
@ -693,6 +819,26 @@ union Instruction {
UNREACHABLE();
}
TextureProcessMode GetTextureProcessMode() const {
if (texture_info == 1 || texture_info == 5 || texture_info == 12)
return TextureProcessMode::LL;
return TextureProcessMode::LZ;
}
bool UsesMiscMode(TextureMiscMode mode) const {
switch (mode) {
case TextureMiscMode::AOFFI:
return texture_info == 12 || texture_info == 4;
case TextureMiscMode::MZ:
return texture_info == 5;
case TextureMiscMode::NODEP:
return nodep_flag != 0;
default:
break;
}
return false;
}
bool IsArrayTexture() const {
// TEXS only supports Texture2D arrays.
return texture_info == 8;

47
src/video_core/renderer_opengl/gl_shader_decompiler.cpp
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@ -938,8 +938,6 @@ private:
// TEXS has two destination registers and a swizzle. The first two elements in the swizzle
// go into gpr0+0 and gpr0+1, and the rest goes into gpr28+0 and gpr28+1
ASSERT_MSG(instr.texs.nodep == 0, "TEXS nodep not implemented");
std::size_t written_components = 0;
for (u32 component = 0; component < 4; ++component) {
if (!instr.texs.IsComponentEnabled(component)) {
@ -1853,6 +1851,13 @@ private:
Tegra::Shader::TextureType texture_type{instr.tex.texture_type};
std::string coord;
ASSERT_MSG(!instr.tex.UsesMiscMode(Tegra::Shader::TextureMiscMode::NODEP),
"NODEP is not implemented");
ASSERT_MSG(!instr.tex.UsesMiscMode(Tegra::Shader::TextureMiscMode::AOFFI),
"AOFFI is not implemented");
ASSERT_MSG(!instr.tex.UsesMiscMode(Tegra::Shader::TextureMiscMode::DC),
"DC is not implemented");
switch (texture_type) {
case Tegra::Shader::TextureType::Texture1D: {
const std::string x = regs.GetRegisterAsFloat(instr.gpr8);
@ -1935,6 +1940,11 @@ private:
Tegra::Shader::TextureType texture_type{instr.texs.GetTextureType()};
bool is_array{instr.texs.IsArrayTexture()};
ASSERT_MSG(!instr.texs.UsesMiscMode(Tegra::Shader::TextureMiscMode::NODEP),
"NODEP is not implemented");
ASSERT_MSG(!instr.texs.UsesMiscMode(Tegra::Shader::TextureMiscMode::DC),
"DC is not implemented");
switch (texture_type) {
case Tegra::Shader::TextureType::Texture2D: {
if (is_array) {
@ -1971,6 +1981,13 @@ private:
ASSERT(instr.tlds.IsArrayTexture() == false);
std::string coord;
ASSERT_MSG(!instr.tlds.UsesMiscMode(Tegra::Shader::TextureMiscMode::NODEP),
"NODEP is not implemented");
ASSERT_MSG(!instr.tlds.UsesMiscMode(Tegra::Shader::TextureMiscMode::AOFFI),
"AOFFI is not implemented");
ASSERT_MSG(!instr.tlds.UsesMiscMode(Tegra::Shader::TextureMiscMode::MZ),
"MZ is not implemented");
switch (instr.tlds.GetTextureType()) {
case Tegra::Shader::TextureType::Texture2D: {
if (instr.tlds.IsArrayTexture()) {
@ -1999,6 +2016,17 @@ private:
ASSERT(instr.tld4.array == 0);
std::string coord;
ASSERT_MSG(!instr.tld4.UsesMiscMode(Tegra::Shader::TextureMiscMode::NODEP),
"NODEP is not implemented");
ASSERT_MSG(!instr.tld4.UsesMiscMode(Tegra::Shader::TextureMiscMode::AOFFI),
"AOFFI is not implemented");
ASSERT_MSG(!instr.tld4.UsesMiscMode(Tegra::Shader::TextureMiscMode::DC),
"DC is not implemented");
ASSERT_MSG(!instr.tld4.UsesMiscMode(Tegra::Shader::TextureMiscMode::NDV),
"NDV is not implemented");
ASSERT_MSG(!instr.tld4.UsesMiscMode(Tegra::Shader::TextureMiscMode::PTP),
"PTP is not implemented");
switch (instr.tld4.texture_type) {
case Tegra::Shader::TextureType::Texture2D: {
const std::string x = regs.GetRegisterAsFloat(instr.gpr8);
@ -2036,6 +2064,13 @@ private:
break;
}
case OpCode::Id::TLD4S: {
ASSERT_MSG(!instr.tld4s.UsesMiscMode(Tegra::Shader::TextureMiscMode::NODEP),
"NODEP is not implemented");
ASSERT_MSG(!instr.tld4s.UsesMiscMode(Tegra::Shader::TextureMiscMode::AOFFI),
"AOFFI is not implemented");
ASSERT_MSG(!instr.tld4s.UsesMiscMode(Tegra::Shader::TextureMiscMode::DC),
"DC is not implemented");
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.
@ -2048,6 +2083,9 @@ private:
break;
}
case OpCode::Id::TXQ: {
ASSERT_MSG(!instr.txq.UsesMiscMode(Tegra::Shader::TextureMiscMode::NODEP),
"NODEP is not implemented");
// TODO: the new commits on the texture refactor, change the way samplers work.
// Sadly, not all texture instructions specify the type of texture their sampler
// uses. This must be fixed at a later instance.
@ -2068,6 +2106,11 @@ private:
break;
}
case OpCode::Id::TMML: {
ASSERT_MSG(!instr.tmml.UsesMiscMode(Tegra::Shader::TextureMiscMode::NODEP),
"NODEP is not implemented");
ASSERT_MSG(!instr.tmml.UsesMiscMode(Tegra::Shader::TextureMiscMode::NDV),
"NDV is not implemented");
const std::string op_a = regs.GetRegisterAsFloat(instr.gpr8);
const std::string op_b = regs.GetRegisterAsFloat(instr.gpr8.Value() + 1);
const bool is_array = instr.tmml.array != 0;

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