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Merge pull request #1268 from FernandoS27/tmml

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shader_decompiler: Implemented TMML
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bunnei 2018-09-09 21:39:39 -04:00 • committed by GitHub
commit e58855c7a4
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2 changed files with 67 additions and 5 deletions
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48
src/video_core/renderer_opengl/gl_shader_decompiler.cpp
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@ -1945,6 +1945,54 @@ private:
}
break;
}
case OpCode::Id::TMML: {
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;
auto texture_type = instr.tmml.texture_type.Value();
const std::string sampler = GetSampler(instr.sampler, texture_type, is_array);
// TODO: add coordinates for different samplers once other texture types are
// implemented.
std::string coord;
switch (texture_type) {
case Tegra::Shader::TextureType::Texture1D: {
std::string x = regs.GetRegisterAsFloat(instr.gpr8);
coord = "float coords = " + x + ';';
break;
}
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:
LOG_CRITICAL(HW_GPU, "Unhandled texture type {}",
static_cast<u32>(texture_type));
UNREACHABLE();
// Fallback to interpreting as a 2D texture for now
std::string x = regs.GetRegisterAsFloat(instr.gpr8);
std::string y = regs.GetRegisterAsFloat(instr.gpr8.Value() + 1);
coord = "vec2 coords = vec2(" + x + ", " + y + ");";
texture_type = Tegra::Shader::TextureType::Texture2D;
}
// 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 = "textureQueryLod(" + sampler + ", coords)";
const std::string tmp = "vec2 tmp = " + texture + "*vec2(256.0, 256.0);";
shader.AddLine(tmp);
regs.SetRegisterToInteger(instr.gpr0, true, 0, "int(tmp.y)", 1, 1);
regs.SetRegisterToInteger(instr.gpr0.Value() + 1, false, 0, "uint(tmp.x)", 1, 1);
--shader.scope;
shader.AddLine('}');
break;
}
default: {
LOG_CRITICAL(HW_GPU, "Unhandled memory instruction: {}", opcode->GetName());
UNREACHABLE();