mirror of
https://github.com/yuzu-emu/yuzu.git
synced 2024-08-20 23:03:22 +02:00
Merge pull request #787 from bunnei/tlds
gl_shader_decompiler: Implement shader instruction TLDS.
This commit is contained in:
commit
f6657bc8d7
@ -750,6 +750,38 @@ private:
|
||||
}
|
||||
}
|
||||
|
||||
std::string WriteTexsInstruction(const Instruction& instr, const std::string& coord,
|
||||
const std::string& texture) {
|
||||
// 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);
|
||||
|
||||
// TEXS has two destination registers. RG goes into gpr0+0 and gpr0+1, and BA
|
||||
// goes into gpr28+0 and gpr28+1
|
||||
size_t texs_offset{};
|
||||
|
||||
for (const auto& dest : {instr.gpr0.Value(), instr.gpr28.Value()}) {
|
||||
for (unsigned elem = 0; elem < 2; ++elem) {
|
||||
if (!instr.texs.IsComponentEnabled(elem)) {
|
||||
// Skip disabled components
|
||||
continue;
|
||||
}
|
||||
regs.SetRegisterToFloat(dest, elem + texs_offset, texture, 1, 4, false, elem);
|
||||
}
|
||||
|
||||
if (!instr.texs.HasTwoDestinations()) {
|
||||
// Skip the second destination
|
||||
break;
|
||||
}
|
||||
|
||||
texs_offset += 2;
|
||||
}
|
||||
--shader.scope;
|
||||
shader.AddLine('}');
|
||||
}
|
||||
|
||||
/**
|
||||
* Compiles a single instruction from Tegra to GLSL.
|
||||
* @param offset the offset of the Tegra shader instruction.
|
||||
@ -1348,36 +1380,18 @@ private:
|
||||
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 + ");";
|
||||
// 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 = "texture(" + sampler + ", coords)";
|
||||
|
||||
// TEXS has two destination registers. RG goes into gpr0+0 and gpr0+1, and BA
|
||||
// goes into gpr28+0 and gpr28+1
|
||||
size_t texs_offset{};
|
||||
|
||||
for (const auto& dest : {instr.gpr0.Value(), instr.gpr28.Value()}) {
|
||||
for (unsigned elem = 0; elem < 2; ++elem) {
|
||||
if (!instr.texs.IsComponentEnabled(elem)) {
|
||||
// Skip disabled components
|
||||
continue;
|
||||
}
|
||||
regs.SetRegisterToFloat(dest, elem + texs_offset, texture, 1, 4, false,
|
||||
elem);
|
||||
}
|
||||
|
||||
if (!instr.texs.HasTwoDestinations()) {
|
||||
// Skip the second destination
|
||||
break;
|
||||
}
|
||||
|
||||
texs_offset += 2;
|
||||
}
|
||||
--shader.scope;
|
||||
shader.AddLine("}");
|
||||
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 + ");";
|
||||
const std::string texture = "texelFetch(" + sampler + ", coords, 0)";
|
||||
WriteTexsInstruction(instr, coord, texture);
|
||||
break;
|
||||
}
|
||||
default: {
|
||||
|
Loading…
Reference in New Issue
Block a user