eden-emu
/
eden
mirror of https://git.eden-emu.dev/eden-emu/eden.git
1
0
Fork 0
Code Releases Wiki Activity
Browse Source

Merge pull request #1822 from ReinUsesLisp/glsl-scope 

gl_shader_decompiler: Introduce a scoped object and style changes
nce_cpp
bunnei 7 years ago
committed by GitHub
parent
7802364db6 af86f71874
commit
4fa8b8aad2
1 changed files with 213 additions and 250 deletions
Whitespace
Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL
Unified View
Diff Options
Show Stats Download Patch File Download Diff File
  1. 463
      src/video_core/renderer_opengl/gl_shader_decompiler.cpp

463
src/video_core/renderer_opengl/gl_shader_decompiler.cpp
View File

@ -201,14 +201,53 @@ private:
} }
}; };
template <typename T>
class ShaderScopedScope {
public:
explicit ShaderScopedScope(T& writer, std::string_view begin_expr, std::string end_expr)
: writer(writer), end_expr(std::move(end_expr)) {
if (begin_expr.empty()) {
writer.AddLine('{');
} else {
writer.AddExpression(begin_expr);
writer.AddLine(" {");
}
++writer.scope;
}
ShaderScopedScope(const ShaderScopedScope&) = delete;
~ShaderScopedScope() {
--writer.scope;
if (end_expr.empty()) {
writer.AddLine('}');
} else {
writer.AddExpression("} ");
writer.AddExpression(end_expr);
writer.AddLine(';');
}
}
ShaderScopedScope& operator=(const ShaderScopedScope&) = delete;
private:
T& writer;
std::string end_expr;
};
class ShaderWriter { class ShaderWriter {
public: public:
void AddLine(std::string_view text) {
void AddExpression(std::string_view text) {
DEBUG_ASSERT(scope >= 0); DEBUG_ASSERT(scope >= 0);
if (!text.empty()) { if (!text.empty()) {
AppendIndentation(); AppendIndentation();
} }
shader_source += text; shader_source += text;
}
void AddLine(std::string_view text) {
AddExpression(text);
AddNewLine(); AddNewLine();
} }
@ -228,6 +267,11 @@ public:
return std::move(shader_source); return std::move(shader_source);
} }
ShaderScopedScope<ShaderWriter> Scope(std::string_view begin_expr = {},
std::string end_expr = {}) {
return ShaderScopedScope(*this, begin_expr, end_expr);
}
int scope = 0; int scope = 0;
private: private:
@ -311,7 +355,7 @@ public:
// Default - do nothing // Default - do nothing
return value; return value;
default: default:
UNIMPLEMENTED_MSG("Unimplemented conversion size: {}", static_cast<u32>(size));
UNREACHABLE_MSG("Unimplemented conversion size: {}", static_cast<u32>(size));
} }
} }
@ -816,14 +860,12 @@ private:
} }
if (precise && stage != Maxwell3D::Regs::ShaderStage::Fragment) { if (precise && stage != Maxwell3D::Regs::ShaderStage::Fragment) {
shader.AddLine('{');
++shader.scope;
const auto scope = shader.Scope();
// This avoids optimizations of constant propagation and keeps the code as the original // This avoids optimizations of constant propagation and keeps the code as the original
// Sadly using the precise keyword causes "linking" errors on fragment shaders. // Sadly using the precise keyword causes "linking" errors on fragment shaders.
shader.AddLine("precise float tmp = " + src + ';'); shader.AddLine("precise float tmp = " + src + ';');
shader.AddLine(dest + " = tmp;"); shader.AddLine(dest + " = tmp;");
--shader.scope;
shader.AddLine('}');
} else { } else {
shader.AddLine(dest + " = " + src + ';'); shader.AddLine(dest + " = " + src + ';');
} }
@ -1301,15 +1343,7 @@ 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,
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 + ';');
void WriteTexsInstruction(const Instruction& instr, const std::string& 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
@ -1321,19 +1355,17 @@ 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) {
@ -1356,12 +1388,10 @@ private:
* top. * top.
*/ */
void EmitPushToFlowStack(u32 target) { void EmitPushToFlowStack(u32 target) {
shader.AddLine('{');
++shader.scope;
const auto scope = shader.Scope();
shader.AddLine("flow_stack[flow_stack_top] = " + std::to_string(target) + "u;"); shader.AddLine("flow_stack[flow_stack_top] = " + std::to_string(target) + "u;");
shader.AddLine("flow_stack_top++;"); shader.AddLine("flow_stack_top++;");
--shader.scope;
shader.AddLine('}');
} }
/* /*
@ -1369,13 +1399,11 @@ private:
* popped address and decrementing the stack top. * popped address and decrementing the stack top.
*/ */
void EmitPopFromFlowStack() { void EmitPopFromFlowStack() {
shader.AddLine('{');
++shader.scope;
const auto scope = shader.Scope();
shader.AddLine("flow_stack_top--;"); shader.AddLine("flow_stack_top--;");
shader.AddLine("jmp_to = flow_stack[flow_stack_top];"); shader.AddLine("jmp_to = flow_stack[flow_stack_top];");
shader.AddLine("break;"); shader.AddLine("break;");
--shader.scope;
shader.AddLine('}');
} }
/// Writes the output values from a fragment shader to the corresponding GLSL output variables. /// Writes the output values from a fragment shader to the corresponding GLSL output variables.
@ -2287,8 +2315,7 @@ private:
UNIMPLEMENTED_IF(instr.conversion.selector); UNIMPLEMENTED_IF(instr.conversion.selector);
UNIMPLEMENTED_IF_MSG(instr.generates_cc, UNIMPLEMENTED_IF_MSG(instr.generates_cc,
"Condition codes generation in I2F is not implemented"); "Condition codes generation in I2F is not implemented");
std::string op_a{};
std::string op_a;
if (instr.is_b_gpr) { if (instr.is_b_gpr) {
op_a = op_a =
@ -2444,10 +2471,7 @@ private:
case OpCode::Id::LD_C: { case OpCode::Id::LD_C: {
UNIMPLEMENTED_IF(instr.ld_c.unknown != 0); UNIMPLEMENTED_IF(instr.ld_c.unknown != 0);
// Add an extra scope and declare the index register inside to prevent
// overwriting it in case it is used as an output of the LD instruction.
shader.AddLine("{");
++shader.scope;
const auto scope = shader.Scope();
shader.AddLine("uint index = (" + regs.GetRegisterAsInteger(instr.gpr8, 0, false) + shader.AddLine("uint index = (" + regs.GetRegisterAsInteger(instr.gpr8, 0, false) +
" / 4) & (MAX_CONSTBUFFER_ELEMENTS - 1);"); " / 4) & (MAX_CONSTBUFFER_ELEMENTS - 1);");
@ -2473,19 +2497,13 @@ private:
UNIMPLEMENTED_MSG("Unhandled type: {}", UNIMPLEMENTED_MSG("Unhandled type: {}",
static_cast<unsigned>(instr.ld_c.type.Value())); static_cast<unsigned>(instr.ld_c.type.Value()));
} }
--shader.scope;
shader.AddLine("}");
break; break;
} }
case OpCode::Id::LD_L: { case OpCode::Id::LD_L: {
UNIMPLEMENTED_IF_MSG(instr.ld_l.unknown == 1, "LD_L Unhandled mode: {}", UNIMPLEMENTED_IF_MSG(instr.ld_l.unknown == 1, "LD_L Unhandled mode: {}",
static_cast<unsigned>(instr.ld_l.unknown.Value())); static_cast<unsigned>(instr.ld_l.unknown.Value()));
// Add an extra scope and declare the index register inside to prevent
// overwriting it in case it is used as an output of the LD instruction.
shader.AddLine('{');
++shader.scope;
const auto scope = shader.Scope();
std::string op = '(' + regs.GetRegisterAsInteger(instr.gpr8, 0, false) + " + " + std::string op = '(' + regs.GetRegisterAsInteger(instr.gpr8, 0, false) + " + " +
std::to_string(instr.smem_imm.Value()) + ')'; std::to_string(instr.smem_imm.Value()) + ')';
@ -2502,9 +2520,6 @@ private:
UNIMPLEMENTED_MSG("LD_L Unhandled type: {}", UNIMPLEMENTED_MSG("LD_L Unhandled type: {}",
static_cast<unsigned>(instr.ldst_sl.type.Value())); static_cast<unsigned>(instr.ldst_sl.type.Value()));
} }
--shader.scope;
shader.AddLine('}');
break; break;
} }
case OpCode::Id::ST_A: { case OpCode::Id::ST_A: {
@ -2539,10 +2554,7 @@ private:
UNIMPLEMENTED_IF_MSG(instr.st_l.unknown == 0, "ST_L Unhandled mode: {}", UNIMPLEMENTED_IF_MSG(instr.st_l.unknown == 0, "ST_L Unhandled mode: {}",
static_cast<unsigned>(instr.st_l.unknown.Value())); static_cast<unsigned>(instr.st_l.unknown.Value()));
// Add an extra scope and declare the index register inside to prevent
// overwriting it in case it is used as an output of the LD instruction.
shader.AddLine('{');
++shader.scope;
const auto scope = shader.Scope();
std::string op = '(' + regs.GetRegisterAsInteger(instr.gpr8, 0, false) + " + " + std::string op = '(' + regs.GetRegisterAsInteger(instr.gpr8, 0, false) + " + " +
std::to_string(instr.smem_imm.Value()) + ')'; std::to_string(instr.smem_imm.Value()) + ')';
@ -2557,14 +2569,10 @@ private:
UNIMPLEMENTED_MSG("ST_L Unhandled type: {}", UNIMPLEMENTED_MSG("ST_L Unhandled type: {}",
static_cast<unsigned>(instr.ldst_sl.type.Value())); static_cast<unsigned>(instr.ldst_sl.type.Value()));
} }
--shader.scope;
shader.AddLine('}');
break; break;
} }
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),
@ -2597,21 +2605,23 @@ 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 + ", " +
array_elem + ");";
shader.AddLine("vec3 coords = vec3(" + x + ", " + depth_value + ", " +
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;
@ -2622,17 +2632,18 @@ 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 +
", " + array_elem + ");";
shader.AddLine("vec4 coords = vec4(" + x + ", " + y + ", " +
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 =
"vec3 coords = vec3(" + x + ", " + y + ", " + depth_value + ");";
shader.AddLine("vec3 coords = vec3(" + x + ", " + y + ", " +
depth_value + ");");
} else { } else {
coord = "vec2 coords = vec2(" + x + ", " + y + ");";
shader.AddLine("vec2 coords = vec2(" + x + ", " + y + ");");
} }
} }
break; break;
@ -2645,14 +2656,14 @@ 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 + ", " +
array_elem + ");";
shader.AddLine("vec4 coords = vec4(" + x + ", " + y + ", " + z + ", " +
array_elem + ");");
} else { } else {
if (depth_compare) { if (depth_compare) {
coord = "vec4 coords = vec4(" + x + ", " + y + ", " + z + ", " +
depth_value + ");";
shader.AddLine("vec4 coords = vec4(" + x + ", " + y + ", " + z + ", " +
depth_value + ");");
} else { } else {
coord = "vec3 coords = vec3(" + x + ", " + y + ", " + z + ");";
shader.AddLine("vec3 coords = vec3(" + x + ", " + y + ", " + z + ");");
} }
} }
break; break;
@ -2664,7 +2675,7 @@ 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;
} }
@ -2673,79 +2684,61 @@ 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;
switch (instr.tex.GetTextureProcessMode()) {
case Tegra::Shader::TextureProcessMode::None: {
if (!depth_compare_extra) {
texture = "texture(" + sampler + ", coords)";
} else {
texture = "texture(" + sampler + ", coords, " + depth_value + ')';
}
break;
}
case Tegra::Shader::TextureProcessMode::LZ: {
if (!depth_compare_extra) {
texture = "textureLod(" + sampler + ", coords, 0.0)";
} else {
texture = "texture(" + sampler + ", coords, " + depth_value + ')';
}
break;
}
case Tegra::Shader::TextureProcessMode::LB:
case Tegra::Shader::TextureProcessMode::LBA: {
// TODO: Figure if A suffix changes the equation at all.
if (!depth_compare_extra) {
texture = "texture(" + sampler + ", coords, " + lod_value + ')';
} else {
texture = "texture(" + sampler + ", coords, " + depth_value + ')';
LOG_WARNING(HW_GPU,
"OpenGL Limitation: can't set bias value along depth compare");
}
break;
}
case Tegra::Shader::TextureProcessMode::LL:
case Tegra::Shader::TextureProcessMode::LLA: {
// TODO: Figure if A suffix changes the equation at all.
if (!depth_compare_extra) {
texture = "textureLod(" + sampler + ", coords, " + lod_value + ')';
} else {
texture = "texture(" + sampler + ", coords, " + depth_value + ')';
LOG_WARNING(HW_GPU,
"OpenGL Limitation: can't set lod value along depth compare");
}
break;
}
default: {
if (!depth_compare_extra) {
texture = "texture(" + sampler + ", coords)";
} else {
texture = "texture(" + sampler + ", coords, " + depth_value + ')';
const std::string texture = [&]() {
switch (instr.tex.GetTextureProcessMode()) {
case Tegra::Shader::TextureProcessMode::None:
if (depth_compare_extra) {
return "texture(" + sampler + ", coords, " + depth_value + ')';
}
return "texture(" + sampler + ", coords)";
case Tegra::Shader::TextureProcessMode::LZ:
if (depth_compare_extra) {
return "texture(" + sampler + ", coords, " + depth_value + ')';
}
return "textureLod(" + sampler + ", coords, 0.0)";
case Tegra::Shader::TextureProcessMode::LB:
case Tegra::Shader::TextureProcessMode::LBA:
// TODO: Figure if A suffix changes the equation at all.
if (depth_compare_extra) {
LOG_WARNING(
HW_GPU,
"OpenGL Limitation: can't set bias value along depth compare");
return "texture(" + sampler + ", coords, " + depth_value + ')';
}
return "texture(" + sampler + ", coords, " + lod_value + ')';
case Tegra::Shader::TextureProcessMode::LL:
case Tegra::Shader::TextureProcessMode::LLA:
// TODO: Figure if A suffix changes the equation at all.
if (depth_compare_extra) {
LOG_WARNING(
HW_GPU,
"OpenGL Limitation: can't set lod value along depth compare");
return "texture(" + sampler + ", coords, " + depth_value + ')';
}
return "textureLod(" + sampler + ", coords, " + lod_value + ')';
default:
UNIMPLEMENTED_MSG("Unhandled texture process mode {}",
static_cast<u32>(instr.tex.GetTextureProcessMode()));
if (depth_compare_extra) {
return "texture(" + sampler + ", coords, " + depth_value + ')';
}
return "texture(" + sampler + ", coords)";
} }
UNIMPLEMENTED_MSG("Unhandled texture process mode {}",
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,
dest_elem);
regs.SetRegisterToFloat(instr.gpr0, elem, texture, 1, 4, false, 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: {
@ -2755,26 +2748,28 @@ private:
UNIMPLEMENTED_IF_MSG(instr.texs.UsesMiscMode(Tegra::Shader::TextureMiscMode::NODEP), UNIMPLEMENTED_IF_MSG(instr.texs.UsesMiscMode(Tegra::Shader::TextureMiscMode::NODEP),
"NODEP is not implemented"); "NODEP is not implemented");
const auto scope = shader.Scope();
const bool depth_compare = const bool depth_compare =
instr.texs.UsesMiscMode(Tegra::Shader::TextureMiscMode::DC); instr.texs.UsesMiscMode(Tegra::Shader::TextureMiscMode::DC);
u32 num_coordinates = TextureCoordinates(texture_type); u32 num_coordinates = TextureCoordinates(texture_type);
const auto process_mode = instr.texs.GetTextureProcessMode(); const auto process_mode = instr.texs.GetTextureProcessMode();
std::string lod_value;
std::string coord;
u32 lod_offset = 0; u32 lod_offset = 0;
if (process_mode == Tegra::Shader::TextureProcessMode::LL) { if (process_mode == Tegra::Shader::TextureProcessMode::LL) {
if (num_coordinates > 2) { if (num_coordinates > 2) {
lod_value = regs.GetRegisterAsFloat(instr.gpr20.Value() + 1);
shader.AddLine("float lod_value = " +
regs.GetRegisterAsFloat(instr.gpr20.Value() + 1) + ';');
lod_offset = 2; lod_offset = 2;
} else { } else {
lod_value = regs.GetRegisterAsFloat(instr.gpr20);
shader.AddLine("float lod_value = " + regs.GetRegisterAsFloat(instr.gpr20) +
';');
lod_offset = 1; lod_offset = 1;
} }
} }
switch (num_coordinates) { switch (num_coordinates) {
case 1: { case 1: {
coord = "float coords = " + regs.GetRegisterAsFloat(instr.gpr8) + ';';
shader.AddLine("float coords = " + regs.GetRegisterAsFloat(instr.gpr8) + ';');
break; break;
} }
case 2: { case 2: {
@ -2784,13 +2779,14 @@ private:
const std::string x = regs.GetRegisterAsFloat(instr.gpr8.Value() + 1); const std::string x = regs.GetRegisterAsFloat(instr.gpr8.Value() + 1);
const std::string y = regs.GetRegisterAsFloat(instr.gpr20); const std::string y = regs.GetRegisterAsFloat(instr.gpr20);
const std::string z = regs.GetRegisterAsFloat(instr.gpr20.Value() + 1); const std::string z = regs.GetRegisterAsFloat(instr.gpr20.Value() + 1);
coord = "vec4 coords = vec4(" + x + ", " + y + ", " + z + ", " + index +
");";
shader.AddLine("vec4 coords = vec4(" + x + ", " + y + ", " + z + ", " +
index + ");");
} else { } else {
const std::string index = regs.GetRegisterAsInteger(instr.gpr8); const std::string index = regs.GetRegisterAsInteger(instr.gpr8);
const std::string x = regs.GetRegisterAsFloat(instr.gpr8.Value() + 1); const std::string x = regs.GetRegisterAsFloat(instr.gpr8.Value() + 1);
const std::string y = regs.GetRegisterAsFloat(instr.gpr20); const std::string y = regs.GetRegisterAsFloat(instr.gpr20);
coord = "vec3 coords = vec3(" + x + ", " + y + ", " + index + ");";
shader.AddLine("vec3 coords = vec3(" + x + ", " + y + ", " + index +
");");
} }
} else { } else {
if (lod_offset != 0) { if (lod_offset != 0) {
@ -2800,12 +2796,13 @@ private:
regs.GetRegisterAsFloat(instr.gpr8.Value() + 1); regs.GetRegisterAsFloat(instr.gpr8.Value() + 1);
const std::string z = const std::string z =
regs.GetRegisterAsFloat(instr.gpr20.Value() + lod_offset); regs.GetRegisterAsFloat(instr.gpr20.Value() + lod_offset);
coord = "vec3 coords = vec3(" + x + ", " + y + ", " + z + ");";
shader.AddLine("vec3 coords = vec3(" + x + ", " + y + ", " + z +
");");
} else { } else {
const std::string x = regs.GetRegisterAsFloat(instr.gpr8); const std::string x = regs.GetRegisterAsFloat(instr.gpr8);
const std::string y = const std::string y =
regs.GetRegisterAsFloat(instr.gpr8.Value() + 1); regs.GetRegisterAsFloat(instr.gpr8.Value() + 1);
coord = "vec2 coords = vec2(" + x + ", " + y + ");";
shader.AddLine("vec2 coords = vec2(" + x + ", " + y + ");");
} }
} else { } else {
if (depth_compare) { if (depth_compare) {
@ -2813,11 +2810,12 @@ private:
const std::string y = const std::string y =
regs.GetRegisterAsFloat(instr.gpr8.Value() + 1); regs.GetRegisterAsFloat(instr.gpr8.Value() + 1);
const std::string z = regs.GetRegisterAsFloat(instr.gpr20); const std::string z = regs.GetRegisterAsFloat(instr.gpr20);
coord = "vec3 coords = vec3(" + x + ", " + y + ", " + z + ");";
shader.AddLine("vec3 coords = vec3(" + x + ", " + y + ", " + z +
");");
} else { } else {
const std::string x = regs.GetRegisterAsFloat(instr.gpr8); const std::string x = regs.GetRegisterAsFloat(instr.gpr8);
const std::string y = regs.GetRegisterAsFloat(instr.gpr20); const std::string y = regs.GetRegisterAsFloat(instr.gpr20);
coord = "vec2 coords = vec2(" + x + ", " + y + ");";
shader.AddLine("vec2 coords = vec2(" + x + ", " + y + ");");
} }
} }
} }
@ -2827,7 +2825,7 @@ private:
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);
const std::string z = regs.GetRegisterAsFloat(instr.gpr20); const std::string z = regs.GetRegisterAsFloat(instr.gpr20);
coord = "vec3 coords = vec3(" + x + ", " + y + ", " + z + ");";
shader.AddLine("vec3 coords = vec3(" + x + ", " + y + ", " + z + ");");
break; break;
} }
default: default:
@ -2837,42 +2835,37 @@ 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.gpr20); const std::string y = regs.GetRegisterAsFloat(instr.gpr20);
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;
is_array = false; is_array = false;
} }
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;
switch (process_mode) {
case Tegra::Shader::TextureProcessMode::None: {
texture = "texture(" + sampler + ", coords)";
break;
}
case Tegra::Shader::TextureProcessMode::LZ: {
if (depth_compare && is_array) {
texture = "texture(" + sampler + ", coords)";
} else {
texture = "textureLod(" + sampler + ", coords, 0.0)";
std::string texture = [&]() {
switch (process_mode) {
case Tegra::Shader::TextureProcessMode::None:
return "texture(" + sampler + ", coords)";
case Tegra::Shader::TextureProcessMode::LZ:
if (depth_compare && is_array) {
return "texture(" + sampler + ", coords)";
} else {
return "textureLod(" + sampler + ", coords, 0.0)";
}
break;
case Tegra::Shader::TextureProcessMode::LL:
return "textureLod(" + sampler + ", coords, lod_value)";
default:
UNIMPLEMENTED_MSG("Unhandled texture process mode {}",
static_cast<u32>(instr.texs.GetTextureProcessMode()));
return "texture(" + sampler + ", coords)";
} }
break;
}
case Tegra::Shader::TextureProcessMode::LL: {
texture = "textureLod(" + sampler + ", coords, " + lod_value + ')';
break;
}
default: {
texture = "texture(" + sampler + ", coords)";
UNIMPLEMENTED_MSG("Unhandled texture process mode {}",
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: {
@ -2891,15 +2884,12 @@ private:
u32 extra_op_offset = 0; u32 extra_op_offset = 0;
// Scope to avoid variable name overlaps.
shader.AddLine('{');
++shader.scope;
std::string coords;
ShaderScopedScope scope = shader.Scope();
switch (texture_type) { switch (texture_type) {
case Tegra::Shader::TextureType::Texture1D: { case Tegra::Shader::TextureType::Texture1D: {
const std::string x = regs.GetRegisterAsInteger(instr.gpr8); const std::string x = regs.GetRegisterAsInteger(instr.gpr8);
coords = "float coords = " + x + ';';
shader.AddLine("float coords = " + x + ';');
break; break;
} }
case Tegra::Shader::TextureType::Texture2D: { case Tegra::Shader::TextureType::Texture2D: {
@ -2908,7 +2898,7 @@ private:
const std::string x = regs.GetRegisterAsInteger(instr.gpr8); const std::string x = regs.GetRegisterAsInteger(instr.gpr8);
const std::string y = regs.GetRegisterAsInteger(instr.gpr20); const std::string y = regs.GetRegisterAsInteger(instr.gpr20);
// shader.AddLine("ivec2 coords = ivec2(" + x + ", " + y + ");"); // shader.AddLine("ivec2 coords = ivec2(" + x + ", " + y + ");");
coords = "ivec2 coords = ivec2(" + x + ", " + y + ");";
shader.AddLine("ivec2 coords = ivec2(" + x + ", " + y + ");");
extra_op_offset = 1; extra_op_offset = 1;
break; break;
} }
@ -2917,35 +2907,29 @@ 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);
std::string texture = "texelFetch(" + sampler + ", coords, 0)";
switch (instr.tlds.GetTextureProcessMode()) {
case Tegra::Shader::TextureProcessMode::LZ: {
texture = "texelFetch(" + sampler + ", coords, 0)";
break;
}
case Tegra::Shader::TextureProcessMode::LL: {
shader.AddLine(
"float lod = " +
regs.GetRegisterAsInteger(instr.gpr20.Value() + extra_op_offset) + ';');
texture = "texelFetch(" + sampler + ", coords, lod)";
break;
}
default: {
texture = "texelFetch(" + sampler + ", coords, 0)";
UNIMPLEMENTED_MSG("Unhandled texture process mode {}",
static_cast<u32>(instr.tlds.GetTextureProcessMode()));
}
}
WriteTexsInstruction(instr, coords, texture);
--shader.scope;
shader.AddLine('}');
const std::string texture = [&]() {
switch (instr.tlds.GetTextureProcessMode()) {
case Tegra::Shader::TextureProcessMode::LZ:
return "texelFetch(" + sampler + ", coords, 0)";
case Tegra::Shader::TextureProcessMode::LL:
shader.AddLine(
"float lod = " +
regs.GetRegisterAsInteger(instr.gpr20.Value() + extra_op_offset) + ';');
return "texelFetch(" + sampler + ", coords, lod)";
default:
UNIMPLEMENTED_MSG("Unhandled texture process mode {}",
static_cast<u32>(instr.tlds.GetTextureProcessMode()));
return "texelFetch(" + sampler + ", coords, 0)";
}
}();
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");
@ -2962,10 +2946,7 @@ 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
// overwriting them in case they are used as outputs of the texs instruction.
shader.AddLine('{');
++shader.scope;
const auto scope = shader.Scope();
switch (num_coordinates) { switch (num_coordinates) {
case 2: { case 2: {
@ -2996,23 +2977,19 @@ 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) {
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,
dest_elem);
regs.SetRegisterToFloat(instr.gpr0, elem, texture, 1, 4, false, 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: {
@ -3023,10 +3000,7 @@ private:
instr.tld4s.UsesMiscMode(Tegra::Shader::TextureMiscMode::AOFFI), instr.tld4s.UsesMiscMode(Tegra::Shader::TextureMiscMode::AOFFI),
"AOFFI is not implemented"); "AOFFI is not implemented");
// Scope to avoid variable name overlaps.
shader.AddLine('{');
++shader.scope;
std::string coords;
const auto scope = shader.Scope();
const bool depth_compare = const bool depth_compare =
instr.tld4s.UsesMiscMode(Tegra::Shader::TextureMiscMode::DC); instr.tld4s.UsesMiscMode(Tegra::Shader::TextureMiscMode::DC);
@ -3035,33 +3009,29 @@ private:
// TODO(Subv): Figure out how the sampler type is encoded in the TLD4S instruction. // TODO(Subv): Figure out how the sampler type is encoded in the TLD4S instruction.
const std::string sampler = GetSampler( const std::string sampler = GetSampler(
instr.sampler, Tegra::Shader::TextureType::Texture2D, false, depth_compare); instr.sampler, Tegra::Shader::TextureType::Texture2D, false, depth_compare);
if (!depth_compare) {
coords = "vec2 coords = vec2(" + op_a + ", " + op_b + ");";
} else {
if (depth_compare) {
// Note: TLD4S coordinate encoding works just like TEXS's // Note: TLD4S coordinate encoding works just like TEXS's
const std::string op_y = regs.GetRegisterAsFloat(instr.gpr8.Value() + 1); const std::string op_y = regs.GetRegisterAsFloat(instr.gpr8.Value() + 1);
coords = "vec3 coords = vec3(" + op_a + ", " + op_y + ", " + op_b + ");";
}
const std::string texture = "textureGather(" + sampler + ", coords, " +
std::to_string(instr.tld4s.component) + ')';
if (!depth_compare) {
WriteTexsInstruction(instr, coords, texture);
shader.AddLine("vec3 coords = vec3(" + op_a + ", " + op_y + ", " + op_b + ");");
} else { } else {
WriteTexsInstruction(instr, coords, "vec4(" + texture + ')');
shader.AddLine("vec2 coords = vec2(" + op_a + ", " + op_b + ");");
} }
--shader.scope;
shader.AddLine('}');
std::string texture = "textureGather(" + sampler + ", coords, " +
std::to_string(instr.tld4s.component) + ')';
if (depth_compare) {
texture = "vec4(" + texture + ')';
}
WriteTexsInstruction(instr, texture);
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;
shader.AddLine('{');
// TODO: the new commits on the texture refactor, change the way samplers work.
const auto scope = shader.Scope();
// 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 =
@ -3072,7 +3042,8 @@ 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);
@ -3083,8 +3054,6 @@ 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: {
@ -3099,17 +3068,18 @@ 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:
@ -3117,22 +3087,15 @@ 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(tmp);
shader.AddLine("vec2 tmp = " + texture + " * vec2(256.0, 256.0);");
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: {

Write Preview
Loading…
Cancel
Save