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Merge pull request #1496 from FernandoS27/tex-array

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Implement Arrays on Tex Instruction
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bunnei 2018-10-17 18:30:44 -04:00 committed by GitHub
commit 86dcf2942b
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1 changed files with 55 additions and 14 deletions
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51
src/video_core/renderer_opengl/gl_shader_decompiler.cpp
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@ -2036,9 +2036,9 @@ private:
break;
}
case OpCode::Id::TEX: {
ASSERT_MSG(instr.tex.array == 0, "TEX arrays unimplemented");
Tegra::Shader::TextureType texture_type{instr.tex.texture_type};
std::string coord;
const bool is_array = instr.tex.array != 0;
ASSERT_MSG(!instr.tex.UsesMiscMode(Tegra::Shader::TextureMiscMode::NODEP),
"NODEP is not implemented");
@ -2053,21 +2053,59 @@ private:
switch (num_coordinates) {
case 1: {
if (is_array) {
const std::string index = regs.GetRegisterAsInteger(instr.gpr8);
const std::string x = regs.GetRegisterAsFloat(instr.gpr8.Value() + 1);
coord = "vec2 coords = vec2(" + x + ", " + index + ");";
} else {
const std::string x = regs.GetRegisterAsFloat(instr.gpr8);
coord = "float coords = " + x + ';';
}
break;
}
case 2: {
if (is_array) {
const std::string index = regs.GetRegisterAsInteger(instr.gpr8);
const std::string x = regs.GetRegisterAsFloat(instr.gpr8.Value() + 1);
const std::string y = regs.GetRegisterAsFloat(instr.gpr8.Value() + 2);
coord = "vec3 coords = vec3(" + x + ", " + y + ", " + index + ");";
} else {
const std::string x = regs.GetRegisterAsFloat(instr.gpr8);
const std::string y = regs.GetRegisterAsFloat(instr.gpr8.Value() + 1);
coord = "vec2 coords = vec2(" + x + ", " + y + ");";
}
break;
}
case 3: {
if (depth_compare) {
if (is_array) {
const std::string index = regs.GetRegisterAsInteger(instr.gpr8);
const std::string x = regs.GetRegisterAsFloat(instr.gpr8.Value() + 1);
const std::string y = regs.GetRegisterAsFloat(instr.gpr20);
const std::string z = regs.GetRegisterAsFloat(instr.gpr20.Value() + 1);
coord = "vec4 coords = vec4(" + x + ", " + y + ", " + z + ", " + index +
");";
} else {
const std::string x = regs.GetRegisterAsFloat(instr.gpr8);
const std::string y = regs.GetRegisterAsFloat(instr.gpr8.Value() + 1);
const std::string z = regs.GetRegisterAsFloat(instr.gpr20);
coord = "vec3 coords = vec3(" + x + ", " + y + ", " + z + ");";
}
} else {
if (is_array) {
const std::string index = regs.GetRegisterAsInteger(instr.gpr8);
const std::string x = regs.GetRegisterAsFloat(instr.gpr8.Value() + 1);
const std::string y = regs.GetRegisterAsFloat(instr.gpr8.Value() + 2);
const std::string z = regs.GetRegisterAsFloat(instr.gpr8.Value() + 3);
coord = "vec4 coords = vec4(" + x + ", " + y + ", " + z + ", " + index +
");";
} else {
const std::string x = regs.GetRegisterAsFloat(instr.gpr8);
const std::string y = regs.GetRegisterAsFloat(instr.gpr8.Value() + 1);
const std::string z = regs.GetRegisterAsFloat(instr.gpr8.Value() + 2);
coord = "vec3 coords = vec3(" + x + ", " + y + ", " + z + ");";
}
}
break;
}
default:
@ -2086,7 +2124,7 @@ private:
std::string op_c;
const std::string sampler =
GetSampler(instr.sampler, texture_type, false, depth_compare);
GetSampler(instr.sampler, texture_type, is_array, depth_compare);
// 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.
@ -2106,10 +2144,13 @@ private:
}
case Tegra::Shader::TextureProcessMode::LB:
case Tegra::Shader::TextureProcessMode::LBA: {
if (num_coordinates <= 2) {
op_c = regs.GetRegisterAsFloat(instr.gpr20);
} else {
if (depth_compare) {
if (is_array)
op_c = regs.GetRegisterAsFloat(instr.gpr20.Value() + 2);
else
op_c = regs.GetRegisterAsFloat(instr.gpr20.Value() + 1);
} else {
op_c = regs.GetRegisterAsFloat(instr.gpr20);
}
// TODO: Figure if A suffix changes the equation at all.
texture = "texture(" + sampler + ", coords, " + op_c + ')';