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gl_shader_decompiler: Clean up texture instructions

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This commit is contained in:
ReinUsesLisp 2018-11-28 02:22:10 -03:00
parent 6a642022dd
commit ab13b628d0
1 changed files with 56 additions and 87 deletions
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143
src/video_core/renderer_opengl/gl_shader_decompiler.cpp
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@ -1337,15 +1337,7 @@ private:
regs.SetRegisterToInteger(dest, true, 0, result, 1, 1); regs.SetRegisterToInteger(dest, true, 0, result, 1, 1);
} }
void WriteTexsInstruction(const Instruction& instr, const std::string& coord, void WriteTexsInstruction(const Instruction& instr, const std::string& texture) {
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);
shader.AddLine("vec4 texture_tmp = " + texture + ';');
// TEXS has two destination registers and a swizzle. The first two elements in the swizzle // 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 // go into gpr0+0 and gpr0+1, and the rest goes into gpr28+0 and gpr28+1
@ -1357,19 +1349,17 @@ private:
if (written_components < 2) { if (written_components < 2) {
// Write the first two swizzle components to gpr0 and gpr0+1 // Write the first two swizzle components to gpr0 and gpr0+1
regs.SetRegisterToFloat(instr.gpr0, component, "texture_tmp", 1, 4, false, regs.SetRegisterToFloat(instr.gpr0, component, texture, 1, 4, false,
written_components % 2); written_components % 2);
} else { } else {
ASSERT(instr.texs.HasTwoDestinations()); ASSERT(instr.texs.HasTwoDestinations());
// Write the rest of the swizzle components to gpr28 and gpr28+1 // Write the rest of the swizzle components to gpr28 and gpr28+1
regs.SetRegisterToFloat(instr.gpr28, component, "texture_tmp", 1, 4, false, regs.SetRegisterToFloat(instr.gpr28, component, texture, 1, 4, false,
written_components % 2); written_components % 2);
} }
++written_components; ++written_components;
} }
--shader.scope;
shader.AddLine('}');
} }
static u32 TextureCoordinates(Tegra::Shader::TextureType texture_type) { static u32 TextureCoordinates(Tegra::Shader::TextureType texture_type) {
@ -2600,7 +2590,6 @@ private:
} }
case OpCode::Id::TEX: { case OpCode::Id::TEX: {
Tegra::Shader::TextureType texture_type{instr.tex.texture_type}; Tegra::Shader::TextureType texture_type{instr.tex.texture_type};
std::string coord;
const bool is_array = instr.tex.array != 0; const bool is_array = instr.tex.array != 0;
UNIMPLEMENTED_IF_MSG(instr.tex.UsesMiscMode(Tegra::Shader::TextureMiscMode::NODEP), UNIMPLEMENTED_IF_MSG(instr.tex.UsesMiscMode(Tegra::Shader::TextureMiscMode::NODEP),
@ -2633,21 +2622,23 @@ private:
bool depth_compare_extra = false; bool depth_compare_extra = false;
const auto scope = shader.Scope();
switch (num_coordinates) { switch (num_coordinates) {
case 1: { case 1: {
const std::string x = regs.GetRegisterAsFloat(instr.gpr8.Value() + start_index); const std::string x = regs.GetRegisterAsFloat(instr.gpr8.Value() + start_index);
if (is_array) { if (is_array) {
if (depth_compare) { if (depth_compare) {
coord = "vec3 coords = vec3(" + x + ", " + depth_value + ", " + shader.AddLine("vec3 coords = vec3(" + x + ", " + depth_value + ", " +
array_elem + ");"; array_elem + ");");
} else { } else {
coord = "vec2 coords = vec2(" + x + ", " + array_elem + ");"; shader.AddLine("vec2 coords = vec2(" + x + ", " + array_elem + ");");
} }
} else { } else {
if (depth_compare) { if (depth_compare) {
coord = "vec2 coords = vec2(" + x + ", " + depth_value + ");"; shader.AddLine("vec2 coords = vec2(" + x + ", " + depth_value + ");");
} else { } else {
coord = "float coords = " + x + ';'; shader.AddLine("float coords = " + x + ';');
} }
} }
break; break;
@ -2658,17 +2649,18 @@ private:
regs.GetRegisterAsFloat(instr.gpr8.Value() + start_index + 1); regs.GetRegisterAsFloat(instr.gpr8.Value() + start_index + 1);
if (is_array) { if (is_array) {
if (depth_compare) { if (depth_compare) {
coord = "vec4 coords = vec4(" + x + ", " + y + ", " + depth_value + shader.AddLine("vec4 coords = vec4(" + x + ", " + y + ", " +
", " + array_elem + ");"; depth_value + ", " + array_elem + ");");
} else { } else {
coord = "vec3 coords = vec3(" + x + ", " + y + ", " + array_elem + ");"; shader.AddLine("vec3 coords = vec3(" + x + ", " + y + ", " +
array_elem + ");");
} }
} else { } else {
if (depth_compare) { if (depth_compare) {
coord = shader.AddLine("vec3 coords = vec3(" + x + ", " + y + ", " +
"vec3 coords = vec3(" + x + ", " + y + ", " + depth_value + ");"; depth_value + ");");
} else { } else {
coord = "vec2 coords = vec2(" + x + ", " + y + ");"; shader.AddLine("vec2 coords = vec2(" + x + ", " + y + ");");
} }
} }
break; break;
@ -2681,14 +2673,14 @@ private:
regs.GetRegisterAsFloat(instr.gpr8.Value() + start_index + 2); regs.GetRegisterAsFloat(instr.gpr8.Value() + start_index + 2);
if (is_array) { if (is_array) {
depth_compare_extra = depth_compare; depth_compare_extra = depth_compare;
coord = "vec4 coords = vec4(" + x + ", " + y + ", " + z + ", " + shader.AddLine("vec4 coords = vec4(" + x + ", " + y + ", " + z + ", " +
array_elem + ");"; array_elem + ");");
} else { } else {
if (depth_compare) { if (depth_compare) {
coord = "vec4 coords = vec4(" + x + ", " + y + ", " + z + ", " + shader.AddLine("vec4 coords = vec4(" + x + ", " + y + ", " + z + ", " +
depth_value + ");"; depth_value + ");");
} else { } else {
coord = "vec3 coords = vec3(" + x + ", " + y + ", " + z + ");"; shader.AddLine("vec3 coords = vec3(" + x + ", " + y + ", " + z + ");");
} }
} }
break; break;
@ -2700,7 +2692,7 @@ private:
// Fallback to interpreting as a 2D texture for now // Fallback to interpreting as a 2D texture for now
const std::string x = regs.GetRegisterAsFloat(instr.gpr8); const std::string x = regs.GetRegisterAsFloat(instr.gpr8);
const std::string y = regs.GetRegisterAsFloat(instr.gpr8.Value() + 1); const std::string y = regs.GetRegisterAsFloat(instr.gpr8.Value() + 1);
coord = "vec2 coords = vec2(" + x + ", " + y + ");"; shader.AddLine("vec2 coords = vec2(" + x + ", " + y + ");");
texture_type = Tegra::Shader::TextureType::Texture2D; texture_type = Tegra::Shader::TextureType::Texture2D;
} }
@ -2709,9 +2701,6 @@ private:
// Add an extra scope and declare the texture coords inside to prevent // 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. // overwriting them in case they are used as outputs of the texs instruction.
shader.AddLine('{');
++shader.scope;
shader.AddLine(coord);
std::string texture; std::string texture;
switch (instr.tex.GetTextureProcessMode()) { switch (instr.tex.GetTextureProcessMode()) {
@ -2765,23 +2754,20 @@ private:
static_cast<u32>(instr.tex.GetTextureProcessMode())); static_cast<u32>(instr.tex.GetTextureProcessMode()));
} }
} }
if (!depth_compare) {
shader.AddLine("vec4 texture_tmp = " + texture + ';'); if (depth_compare) {
regs.SetRegisterToFloat(instr.gpr0, 0, texture, 1, 1, false);
} else {
std::size_t dest_elem{}; std::size_t dest_elem{};
for (std::size_t elem = 0; elem < 4; ++elem) { for (std::size_t elem = 0; elem < 4; ++elem) {
if (!instr.tex.IsComponentEnabled(elem)) { if (!instr.tex.IsComponentEnabled(elem)) {
// Skip disabled components // Skip disabled components
continue; continue;
} }
regs.SetRegisterToFloat(instr.gpr0, elem, "texture_tmp", 1, 4, false, regs.SetRegisterToFloat(instr.gpr0, elem, texture, 1, 4, false, dest_elem);
dest_elem);
++dest_elem; ++dest_elem;
} }
} else {
regs.SetRegisterToFloat(instr.gpr0, 0, texture, 1, 1, false);
} }
--shader.scope;
shader.AddLine('}');
break; break;
} }
case OpCode::Id::TEXS: { case OpCode::Id::TEXS: {
@ -2884,6 +2870,7 @@ private:
} }
const std::string sampler = const std::string sampler =
GetSampler(instr.sampler, texture_type, is_array, depth_compare); GetSampler(instr.sampler, texture_type, is_array, depth_compare);
std::string texture; std::string texture;
switch (process_mode) { switch (process_mode) {
case Tegra::Shader::TextureProcessMode::None: { case Tegra::Shader::TextureProcessMode::None: {
@ -2908,12 +2895,11 @@ private:
static_cast<u32>(instr.texs.GetTextureProcessMode())); static_cast<u32>(instr.texs.GetTextureProcessMode()));
} }
} }
if (!depth_compare) {
WriteTexsInstruction(instr, coord, texture);
} else {
WriteTexsInstruction(instr, coord, "vec4(" + texture + ')');
}
if (depth_compare) {
texture = "vec4(" + texture + ')';
}
WriteTexsInstruction(instr, texture);
break; break;
} }
case OpCode::Id::TLDS: { case OpCode::Id::TLDS: {
@ -2974,13 +2960,12 @@ private:
static_cast<u32>(instr.tlds.GetTextureProcessMode())); static_cast<u32>(instr.tlds.GetTextureProcessMode()));
} }
} }
WriteTexsInstruction(instr, coords, texture); WriteTexsInstruction(instr, texture);
break; break;
} }
case OpCode::Id::TLD4: { case OpCode::Id::TLD4: {
ASSERT(instr.tld4.texture_type == Tegra::Shader::TextureType::Texture2D); ASSERT(instr.tld4.texture_type == Tegra::Shader::TextureType::Texture2D);
ASSERT(instr.tld4.array == 0); ASSERT(instr.tld4.array == 0);
std::string coord;
UNIMPLEMENTED_IF_MSG(instr.tld4.UsesMiscMode(Tegra::Shader::TextureMiscMode::NODEP), UNIMPLEMENTED_IF_MSG(instr.tld4.UsesMiscMode(Tegra::Shader::TextureMiscMode::NODEP),
"NODEP is not implemented"); "NODEP is not implemented");
@ -2997,10 +2982,7 @@ private:
if (depth_compare) if (depth_compare)
num_coordinates += 1; num_coordinates += 1;
// Add an extra scope and declare the texture coords inside to prevent const auto scope = shader.Scope();
// overwriting them in case they are used as outputs of the texs instruction.
shader.AddLine('{');
++shader.scope;
switch (num_coordinates) { switch (num_coordinates) {
case 2: { case 2: {
@ -3031,7 +3013,9 @@ private:
const std::string texture = "textureGather(" + sampler + ", coords, " + const std::string texture = "textureGather(" + sampler + ", coords, " +
std::to_string(instr.tld4.component) + ')'; std::to_string(instr.tld4.component) + ')';
if (!depth_compare) { if (depth_compare) {
regs.SetRegisterToFloat(instr.gpr0, 0, texture, 1, 1, false);
} else {
shader.AddLine("vec4 texture_tmp = " + texture + ';'); shader.AddLine("vec4 texture_tmp = " + texture + ';');
std::size_t dest_elem{}; std::size_t dest_elem{};
for (std::size_t elem = 0; elem < 4; ++elem) { for (std::size_t elem = 0; elem < 4; ++elem) {
@ -3043,11 +3027,7 @@ private:
dest_elem); dest_elem);
++dest_elem; ++dest_elem;
} }
} else {
regs.SetRegisterToFloat(instr.gpr0, 0, texture, 1, 1, false);
} }
--shader.scope;
shader.AddLine('}');
break; break;
} }
case OpCode::Id::TLD4S: { case OpCode::Id::TLD4S: {
@ -3074,26 +3054,22 @@ private:
const std::string op_y = regs.GetRegisterAsFloat(instr.gpr8.Value() + 1); const std::string op_y = regs.GetRegisterAsFloat(instr.gpr8.Value() + 1);
shader.AddLine("vec3 coords = vec3(" + op_a + ", " + op_y + ", " + op_b + ");"); shader.AddLine("vec3 coords = vec3(" + op_a + ", " + op_y + ", " + op_b + ");");
} }
const std::string texture = "textureGather(" + sampler + ", coords, " +
std::string texture = "textureGather(" + sampler + ", coords, " +
std::to_string(instr.tld4s.component) + ')'; std::to_string(instr.tld4s.component) + ')';
if (depth_compare) {
if (!depth_compare) { texture = "vec4(" + texture + ')';
WriteTexsInstruction(instr, coords, texture);
} else {
WriteTexsInstruction(instr, coords, "vec4(" + texture + ')');
} }
WriteTexsInstruction(instr, texture);
--shader.scope;
shader.AddLine('}');
break; break;
} }
case OpCode::Id::TXQ: { case OpCode::Id::TXQ: {
UNIMPLEMENTED_IF_MSG(instr.txq.UsesMiscMode(Tegra::Shader::TextureMiscMode::NODEP), UNIMPLEMENTED_IF_MSG(instr.txq.UsesMiscMode(Tegra::Shader::TextureMiscMode::NODEP),
"NODEP is not implemented"); "NODEP is not implemented");
++shader.scope; const auto scope = shader.Scope();
shader.AddLine('{');
// TODO: the new commits on the texture refactor, change the way samplers work. // 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 // Sadly, not all texture instructions specify the type of texture their sampler
// uses. This must be fixed at a later instance. // uses. This must be fixed at a later instance.
const std::string sampler = const std::string sampler =
@ -3104,7 +3080,8 @@ private:
regs.GetRegisterAsInteger(instr.gpr8) + ')'; regs.GetRegisterAsInteger(instr.gpr8) + ')';
const std::string mip_level = "textureQueryLevels(" + sampler + ')'; const std::string mip_level = "textureQueryLevels(" + sampler + ')';
shader.AddLine("ivec2 sizes = " + texture + ';'); shader.AddLine("ivec2 sizes = " + texture + ';');
regs.SetRegisterToInteger(instr.gpr0, true, 0, "sizes.x", 1, 1);
regs.SetRegisterToInteger(instr.gpr0.Value() + 0, true, 0, "sizes.x", 1, 1);
regs.SetRegisterToInteger(instr.gpr0.Value() + 1, true, 0, "sizes.y", 1, 1); regs.SetRegisterToInteger(instr.gpr0.Value() + 1, true, 0, "sizes.y", 1, 1);
regs.SetRegisterToInteger(instr.gpr0.Value() + 2, true, 0, "0", 1, 1); regs.SetRegisterToInteger(instr.gpr0.Value() + 2, true, 0, "0", 1, 1);
regs.SetRegisterToInteger(instr.gpr0.Value() + 3, true, 0, mip_level, 1, 1); regs.SetRegisterToInteger(instr.gpr0.Value() + 3, true, 0, mip_level, 1, 1);
@ -3115,8 +3092,6 @@ private:
static_cast<u32>(instr.txq.query_type.Value())); static_cast<u32>(instr.txq.query_type.Value()));
} }
} }
--shader.scope;
shader.AddLine('}');
break; break;
} }
case OpCode::Id::TMML: { case OpCode::Id::TMML: {
@ -3131,17 +3106,18 @@ private:
const std::string sampler = const std::string sampler =
GetSampler(instr.sampler, texture_type, is_array, false); GetSampler(instr.sampler, texture_type, is_array, false);
// TODO: add coordinates for different samplers once other texture types are const auto scope = shader.Scope();
// TODO: Add coordinates for different samplers once other texture types are
// implemented. // implemented.
std::string coord;
switch (texture_type) { switch (texture_type) {
case Tegra::Shader::TextureType::Texture1D: { case Tegra::Shader::TextureType::Texture1D: {
coord = "float coords = " + x + ';'; shader.AddLine("float coords = " + x + ';');
break; break;
} }
case Tegra::Shader::TextureType::Texture2D: { case Tegra::Shader::TextureType::Texture2D: {
const std::string y = regs.GetRegisterAsFloat(instr.gpr8.Value() + 1); const std::string y = regs.GetRegisterAsFloat(instr.gpr8.Value() + 1);
coord = "vec2 coords = vec2(" + x + ", " + y + ");"; shader.AddLine("vec2 coords = vec2(" + x + ", " + y + ");");
break; break;
} }
default: default:
@ -3149,22 +3125,15 @@ private:
// Fallback to interpreting as a 2D texture for now // Fallback to interpreting as a 2D texture for now
const std::string y = regs.GetRegisterAsFloat(instr.gpr8.Value() + 1); const std::string y = regs.GetRegisterAsFloat(instr.gpr8.Value() + 1);
coord = "vec2 coords = vec2(" + x + ", " + y + ");"; shader.AddLine("vec2 coords = vec2(" + x + ", " + y + ");");
texture_type = Tegra::Shader::TextureType::Texture2D; 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 texture = "textureQueryLod(" + sampler + ", coords)";
const std::string tmp = "vec2 tmp = " + texture + "*vec2(256.0, 256.0);"; shader.AddLine("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, true, 0, "int(tmp.y)", 1, 1);
regs.SetRegisterToInteger(instr.gpr0.Value() + 1, false, 0, "uint(tmp.x)", 1, 1); regs.SetRegisterToInteger(instr.gpr0.Value() + 1, false, 0, "uint(tmp.x)", 1, 1);
--shader.scope;
shader.AddLine('}');
break; break;
} }
default: { default: {