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Merge pull request #1822 from ReinUsesLisp/glsl-scope
gl_shader_decompiler: Introduce a scoped object and style changes
This commit is contained in:
bunnei
GitHub
commit
8a12daac8c
1 changed files with 213 additions and 250 deletions
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@ -201,14 +201,53 @@ private:
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}
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};
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template <typename T>
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class ShaderScopedScope {
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public:
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explicit ShaderScopedScope(T& writer, std::string_view begin_expr, std::string end_expr)
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: writer(writer), end_expr(std::move(end_expr)) {
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if (begin_expr.empty()) {
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writer.AddLine('{');
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} else {
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writer.AddExpression(begin_expr);
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writer.AddLine(" {");
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}
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++writer.scope;
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}
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ShaderScopedScope(const ShaderScopedScope&) = delete;
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~ShaderScopedScope() {
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--writer.scope;
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if (end_expr.empty()) {
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writer.AddLine('}');
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} else {
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writer.AddExpression("} ");
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writer.AddExpression(end_expr);
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writer.AddLine(';');
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}
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}
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ShaderScopedScope& operator=(const ShaderScopedScope&) = delete;
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private:
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T& writer;
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std::string end_expr;
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};
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class ShaderWriter {
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public:
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void AddLine(std::string_view text) {
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void AddExpression(std::string_view text) {
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DEBUG_ASSERT(scope >= 0);
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if (!text.empty()) {
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AppendIndentation();
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}
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shader_source += text;
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}
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void AddLine(std::string_view text) {
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AddExpression(text);
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AddNewLine();
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}
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@ -228,6 +267,11 @@ public:
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return std::move(shader_source);
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}
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ShaderScopedScope<ShaderWriter> Scope(std::string_view begin_expr = {},
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std::string end_expr = {}) {
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return ShaderScopedScope(*this, begin_expr, end_expr);
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}
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int scope = 0;
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private:
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@ -311,7 +355,7 @@ public:
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// Default - do nothing
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return value;
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default:
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UNIMPLEMENTED_MSG("Unimplemented conversion size: {}", static_cast<u32>(size));
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UNREACHABLE_MSG("Unimplemented conversion size: {}", static_cast<u32>(size));
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}
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}
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@ -816,14 +860,12 @@ private:
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}
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if (precise && stage != Maxwell3D::Regs::ShaderStage::Fragment) {
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shader.AddLine('{');
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++shader.scope;
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const auto scope = shader.Scope();
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// This avoids optimizations of constant propagation and keeps the code as the original
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// Sadly using the precise keyword causes "linking" errors on fragment shaders.
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shader.AddLine("precise float tmp = " + src + ';');
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shader.AddLine(dest + " = tmp;");
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--shader.scope;
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shader.AddLine('}');
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} else {
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shader.AddLine(dest + " = " + src + ';');
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}
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@ -1301,15 +1343,7 @@ private:
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regs.SetRegisterToInteger(dest, true, 0, result, 1, 1);
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}
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void WriteTexsInstruction(const Instruction& instr, const std::string& coord,
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const std::string& texture) {
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// Add an extra scope and declare the texture coords inside to prevent
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// overwriting them in case they are used as outputs of the texs instruction.
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shader.AddLine('{');
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++shader.scope;
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shader.AddLine(coord);
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shader.AddLine("vec4 texture_tmp = " + texture + ';');
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void WriteTexsInstruction(const Instruction& instr, const std::string& texture) {
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// TEXS has two destination registers and a swizzle. The first two elements in the swizzle
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// go into gpr0+0 and gpr0+1, and the rest goes into gpr28+0 and gpr28+1
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@ -1321,19 +1355,17 @@ private:
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if (written_components < 2) {
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// Write the first two swizzle components to gpr0 and gpr0+1
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regs.SetRegisterToFloat(instr.gpr0, component, "texture_tmp", 1, 4, false,
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regs.SetRegisterToFloat(instr.gpr0, component, texture, 1, 4, false,
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written_components % 2);
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} else {
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ASSERT(instr.texs.HasTwoDestinations());
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// Write the rest of the swizzle components to gpr28 and gpr28+1
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regs.SetRegisterToFloat(instr.gpr28, component, "texture_tmp", 1, 4, false,
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regs.SetRegisterToFloat(instr.gpr28, component, texture, 1, 4, false,
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written_components % 2);
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}
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++written_components;
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}
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--shader.scope;
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shader.AddLine('}');
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}
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static u32 TextureCoordinates(Tegra::Shader::TextureType texture_type) {
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@ -1356,12 +1388,10 @@ private:
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* top.
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*/
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void EmitPushToFlowStack(u32 target) {
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shader.AddLine('{');
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++shader.scope;
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const auto scope = shader.Scope();
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shader.AddLine("flow_stack[flow_stack_top] = " + std::to_string(target) + "u;");
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shader.AddLine("flow_stack_top++;");
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--shader.scope;
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shader.AddLine('}');
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}
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/*
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@ -1369,13 +1399,11 @@ private:
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* popped address and decrementing the stack top.
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*/
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void EmitPopFromFlowStack() {
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shader.AddLine('{');
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++shader.scope;
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const auto scope = shader.Scope();
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shader.AddLine("flow_stack_top--;");
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shader.AddLine("jmp_to = flow_stack[flow_stack_top];");
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shader.AddLine("break;");
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--shader.scope;
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shader.AddLine('}');
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}
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/// Writes the output values from a fragment shader to the corresponding GLSL output variables.
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@ -2287,8 +2315,7 @@ private:
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UNIMPLEMENTED_IF(instr.conversion.selector);
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UNIMPLEMENTED_IF_MSG(instr.generates_cc,
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"Condition codes generation in I2F is not implemented");
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std::string op_a{};
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std::string op_a;
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if (instr.is_b_gpr) {
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op_a =
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@ -2444,10 +2471,7 @@ private:
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case OpCode::Id::LD_C: {
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UNIMPLEMENTED_IF(instr.ld_c.unknown != 0);
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// Add an extra scope and declare the index register inside to prevent
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// overwriting it in case it is used as an output of the LD instruction.
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shader.AddLine("{");
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++shader.scope;
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const auto scope = shader.Scope();
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shader.AddLine("uint index = (" + regs.GetRegisterAsInteger(instr.gpr8, 0, false) +
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" / 4) & (MAX_CONSTBUFFER_ELEMENTS - 1);");
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@ -2473,19 +2497,13 @@ private:
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UNIMPLEMENTED_MSG("Unhandled type: {}",
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static_cast<unsigned>(instr.ld_c.type.Value()));
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}
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--shader.scope;
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shader.AddLine("}");
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break;
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}
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case OpCode::Id::LD_L: {
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UNIMPLEMENTED_IF_MSG(instr.ld_l.unknown == 1, "LD_L Unhandled mode: {}",
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static_cast<unsigned>(instr.ld_l.unknown.Value()));
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// Add an extra scope and declare the index register inside to prevent
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// overwriting it in case it is used as an output of the LD instruction.
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shader.AddLine('{');
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++shader.scope;
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const auto scope = shader.Scope();
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std::string op = '(' + regs.GetRegisterAsInteger(instr.gpr8, 0, false) + " + " +
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std::to_string(instr.smem_imm.Value()) + ')';
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@ -2502,9 +2520,6 @@ private:
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UNIMPLEMENTED_MSG("LD_L Unhandled type: {}",
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static_cast<unsigned>(instr.ldst_sl.type.Value()));
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}
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--shader.scope;
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shader.AddLine('}');
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break;
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}
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case OpCode::Id::ST_A: {
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@ -2539,10 +2554,7 @@ private:
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UNIMPLEMENTED_IF_MSG(instr.st_l.unknown == 0, "ST_L Unhandled mode: {}",
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static_cast<unsigned>(instr.st_l.unknown.Value()));
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// Add an extra scope and declare the index register inside to prevent
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// overwriting it in case it is used as an output of the LD instruction.
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shader.AddLine('{');
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++shader.scope;
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const auto scope = shader.Scope();
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std::string op = '(' + regs.GetRegisterAsInteger(instr.gpr8, 0, false) + " + " +
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std::to_string(instr.smem_imm.Value()) + ')';
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@ -2557,14 +2569,10 @@ private:
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UNIMPLEMENTED_MSG("ST_L Unhandled type: {}",
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static_cast<unsigned>(instr.ldst_sl.type.Value()));
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}
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--shader.scope;
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shader.AddLine('}');
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break;
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}
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case OpCode::Id::TEX: {
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Tegra::Shader::TextureType texture_type{instr.tex.texture_type};
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std::string coord;
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const bool is_array = instr.tex.array != 0;
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UNIMPLEMENTED_IF_MSG(instr.tex.UsesMiscMode(Tegra::Shader::TextureMiscMode::NODEP),
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@ -2597,21 +2605,23 @@ private:
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bool depth_compare_extra = false;
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const auto scope = shader.Scope();
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switch (num_coordinates) {
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case 1: {
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const std::string x = regs.GetRegisterAsFloat(instr.gpr8.Value() + start_index);
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if (is_array) {
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if (depth_compare) {
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coord = "vec3 coords = vec3(" + x + ", " + depth_value + ", " +
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array_elem + ");";
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shader.AddLine("vec3 coords = vec3(" + x + ", " + depth_value + ", " +
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array_elem + ");");
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} else {
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coord = "vec2 coords = vec2(" + x + ", " + array_elem + ");";
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shader.AddLine("vec2 coords = vec2(" + x + ", " + array_elem + ");");
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}
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} else {
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if (depth_compare) {
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coord = "vec2 coords = vec2(" + x + ", " + depth_value + ");";
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shader.AddLine("vec2 coords = vec2(" + x + ", " + depth_value + ");");
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} else {
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coord = "float coords = " + x + ';';
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shader.AddLine("float coords = " + x + ';');
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}
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}
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break;
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@ -2622,17 +2632,18 @@ private:
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regs.GetRegisterAsFloat(instr.gpr8.Value() + start_index + 1);
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if (is_array) {
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if (depth_compare) {
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coord = "vec4 coords = vec4(" + x + ", " + y + ", " + depth_value +
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", " + array_elem + ");";
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shader.AddLine("vec4 coords = vec4(" + x + ", " + y + ", " +
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depth_value + ", " + array_elem + ");");
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} else {
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coord = "vec3 coords = vec3(" + x + ", " + y + ", " + array_elem + ");";
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shader.AddLine("vec3 coords = vec3(" + x + ", " + y + ", " +
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array_elem + ");");
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}
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} else {
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if (depth_compare) {
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coord =
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"vec3 coords = vec3(" + x + ", " + y + ", " + depth_value + ");";
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shader.AddLine("vec3 coords = vec3(" + x + ", " + y + ", " +
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depth_value + ");");
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} else {
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coord = "vec2 coords = vec2(" + x + ", " + y + ");";
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shader.AddLine("vec2 coords = vec2(" + x + ", " + y + ");");
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}
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}
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break;
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@ -2645,14 +2656,14 @@ private:
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regs.GetRegisterAsFloat(instr.gpr8.Value() + start_index + 2);
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if (is_array) {
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depth_compare_extra = depth_compare;
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coord = "vec4 coords = vec4(" + x + ", " + y + ", " + z + ", " +
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array_elem + ");";
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shader.AddLine("vec4 coords = vec4(" + x + ", " + y + ", " + z + ", " +
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array_elem + ");");
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} else {
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if (depth_compare) {
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coord = "vec4 coords = vec4(" + x + ", " + y + ", " + z + ", " +
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depth_value + ");";
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shader.AddLine("vec4 coords = vec4(" + x + ", " + y + ", " + z + ", " +
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depth_value + ");");
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} else {
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coord = "vec3 coords = vec3(" + x + ", " + y + ", " + z + ");";
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shader.AddLine("vec3 coords = vec3(" + x + ", " + y + ", " + z + ");");
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}
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}
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break;
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@ -2664,7 +2675,7 @@ private:
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// Fallback to interpreting as a 2D texture for now
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const std::string x = regs.GetRegisterAsFloat(instr.gpr8);
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const std::string y = regs.GetRegisterAsFloat(instr.gpr8.Value() + 1);
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coord = "vec2 coords = vec2(" + x + ", " + y + ");";
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shader.AddLine("vec2 coords = vec2(" + x + ", " + y + ");");
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texture_type = Tegra::Shader::TextureType::Texture2D;
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}
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@ -2673,79 +2684,61 @@ private:
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// Add an extra scope and declare the texture coords inside to prevent
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// overwriting them in case they are used as outputs of the texs instruction.
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shader.AddLine('{');
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++shader.scope;
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shader.AddLine(coord);
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std::string texture;
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const std::string texture = [&]() {
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switch (instr.tex.GetTextureProcessMode()) {
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case Tegra::Shader::TextureProcessMode::None: {
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if (!depth_compare_extra) {
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texture = "texture(" + sampler + ", coords)";
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} else {
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texture = "texture(" + sampler + ", coords, " + depth_value + ')';
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case Tegra::Shader::TextureProcessMode::None:
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if (depth_compare_extra) {
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return "texture(" + sampler + ", coords, " + depth_value + ')';
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}
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break;
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}
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case Tegra::Shader::TextureProcessMode::LZ: {
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if (!depth_compare_extra) {
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texture = "textureLod(" + sampler + ", coords, 0.0)";
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} else {
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texture = "texture(" + sampler + ", coords, " + depth_value + ')';
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}
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break;
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return "texture(" + sampler + ", coords)";
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case Tegra::Shader::TextureProcessMode::LZ:
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if (depth_compare_extra) {
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return "texture(" + sampler + ", coords, " + depth_value + ')';
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}
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return "textureLod(" + sampler + ", coords, 0.0)";
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case Tegra::Shader::TextureProcessMode::LB:
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case Tegra::Shader::TextureProcessMode::LBA: {
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case Tegra::Shader::TextureProcessMode::LBA:
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// TODO: Figure if A suffix changes the equation at all.
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if (!depth_compare_extra) {
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texture = "texture(" + sampler + ", coords, " + lod_value + ')';
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} else {
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texture = "texture(" + sampler + ", coords, " + depth_value + ')';
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LOG_WARNING(HW_GPU,
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if (depth_compare_extra) {
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LOG_WARNING(
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HW_GPU,
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"OpenGL Limitation: can't set bias value along depth compare");
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return "texture(" + sampler + ", coords, " + depth_value + ')';
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}
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break;
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}
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return "texture(" + sampler + ", coords, " + lod_value + ')';
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case Tegra::Shader::TextureProcessMode::LL:
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case Tegra::Shader::TextureProcessMode::LLA: {
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case Tegra::Shader::TextureProcessMode::LLA:
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// TODO: Figure if A suffix changes the equation at all.
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if (!depth_compare_extra) {
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texture = "textureLod(" + sampler + ", coords, " + lod_value + ')';
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} else {
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texture = "texture(" + sampler + ", coords, " + depth_value + ')';
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LOG_WARNING(HW_GPU,
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if (depth_compare_extra) {
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LOG_WARNING(
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HW_GPU,
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"OpenGL Limitation: can't set lod value along depth compare");
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return "texture(" + sampler + ", coords, " + depth_value + ')';
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}
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break;
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}
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default: {
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if (!depth_compare_extra) {
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texture = "texture(" + sampler + ", coords)";
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} else {
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texture = "texture(" + sampler + ", coords, " + depth_value + ')';
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}
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return "textureLod(" + sampler + ", coords, " + lod_value + ')';
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default:
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UNIMPLEMENTED_MSG("Unhandled texture process mode {}",
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static_cast<u32>(instr.tex.GetTextureProcessMode()));
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if (depth_compare_extra) {
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return "texture(" + sampler + ", coords, " + depth_value + ')';
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}
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return "texture(" + sampler + ", coords)";
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}
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if (!depth_compare) {
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shader.AddLine("vec4 texture_tmp = " + texture + ';');
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}();
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if (depth_compare) {
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regs.SetRegisterToFloat(instr.gpr0, 0, texture, 1, 1, false);
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} else {
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std::size_t dest_elem{};
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for (std::size_t elem = 0; elem < 4; ++elem) {
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if (!instr.tex.IsComponentEnabled(elem)) {
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// Skip disabled components
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continue;
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}
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regs.SetRegisterToFloat(instr.gpr0, elem, "texture_tmp", 1, 4, false,
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dest_elem);
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regs.SetRegisterToFloat(instr.gpr0, elem, texture, 1, 4, false, dest_elem);
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++dest_elem;
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}
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} else {
|
||||
regs.SetRegisterToFloat(instr.gpr0, 0, texture, 1, 1, false);
|
||||
}
|
||||
--shader.scope;
|
||||
shader.AddLine('}');
|
||||
break;
|
||||
}
|
||||
case OpCode::Id::TEXS: {
|
||||
|
|
@ -2755,26 +2748,28 @@ private:
|
|||
UNIMPLEMENTED_IF_MSG(instr.texs.UsesMiscMode(Tegra::Shader::TextureMiscMode::NODEP),
|
||||
"NODEP is not implemented");
|
||||
|
||||
const auto scope = shader.Scope();
|
||||
|
||||
const bool depth_compare =
|
||||
instr.texs.UsesMiscMode(Tegra::Shader::TextureMiscMode::DC);
|
||||
u32 num_coordinates = TextureCoordinates(texture_type);
|
||||
const auto process_mode = instr.texs.GetTextureProcessMode();
|
||||
std::string lod_value;
|
||||
std::string coord;
|
||||
u32 lod_offset = 0;
|
||||
if (process_mode == Tegra::Shader::TextureProcessMode::LL) {
|
||||
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;
|
||||
} else {
|
||||
lod_value = regs.GetRegisterAsFloat(instr.gpr20);
|
||||
shader.AddLine("float lod_value = " + regs.GetRegisterAsFloat(instr.gpr20) +
|
||||
';');
|
||||
lod_offset = 1;
|
||||
}
|
||||
}
|
||||
|
||||
switch (num_coordinates) {
|
||||
case 1: {
|
||||
coord = "float coords = " + regs.GetRegisterAsFloat(instr.gpr8) + ';';
|
||||
shader.AddLine("float coords = " + regs.GetRegisterAsFloat(instr.gpr8) + ';');
|
||||
break;
|
||||
}
|
||||
case 2: {
|
||||
|
|
@ -2784,13 +2779,14 @@ private:
|
|||
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 +
|
||||
");";
|
||||
shader.AddLine("vec4 coords = vec4(" + x + ", " + y + ", " + z + ", " +
|
||||
index + ");");
|
||||
} else {
|
||||
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);
|
||||
coord = "vec3 coords = vec3(" + x + ", " + y + ", " + index + ");";
|
||||
shader.AddLine("vec3 coords = vec3(" + x + ", " + y + ", " + index +
|
||||
");");
|
||||
}
|
||||
} else {
|
||||
if (lod_offset != 0) {
|
||||
|
|
@ -2800,12 +2796,13 @@ private:
|
|||
regs.GetRegisterAsFloat(instr.gpr8.Value() + 1);
|
||||
const std::string z =
|
||||
regs.GetRegisterAsFloat(instr.gpr20.Value() + lod_offset);
|
||||
coord = "vec3 coords = vec3(" + x + ", " + y + ", " + z + ");";
|
||||
shader.AddLine("vec3 coords = vec3(" + x + ", " + y + ", " + z +
|
||||
");");
|
||||
} 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 + ");";
|
||||
shader.AddLine("vec2 coords = vec2(" + x + ", " + y + ");");
|
||||
}
|
||||
} else {
|
||||
if (depth_compare) {
|
||||
|
|
@ -2813,11 +2810,12 @@ private:
|
|||
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 + ");";
|
||||
shader.AddLine("vec3 coords = vec3(" + x + ", " + y + ", " + z +
|
||||
");");
|
||||
} else {
|
||||
const std::string x = regs.GetRegisterAsFloat(instr.gpr8);
|
||||
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 y = regs.GetRegisterAsFloat(instr.gpr8.Value() + 1);
|
||||
const std::string z = regs.GetRegisterAsFloat(instr.gpr20);
|
||||
coord = "vec3 coords = vec3(" + x + ", " + y + ", " + z + ");";
|
||||
shader.AddLine("vec3 coords = vec3(" + x + ", " + y + ", " + z + ");");
|
||||
break;
|
||||
}
|
||||
default:
|
||||
|
|
@ -2837,42 +2835,37 @@ private:
|
|||
// Fallback to interpreting as a 2D texture for now
|
||||
const std::string x = regs.GetRegisterAsFloat(instr.gpr8);
|
||||
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;
|
||||
is_array = false;
|
||||
}
|
||||
const std::string sampler =
|
||||
GetSampler(instr.sampler, texture_type, is_array, depth_compare);
|
||||
std::string texture;
|
||||
|
||||
std::string texture = [&]() {
|
||||
switch (process_mode) {
|
||||
case Tegra::Shader::TextureProcessMode::None: {
|
||||
texture = "texture(" + sampler + ", coords)";
|
||||
break;
|
||||
}
|
||||
case Tegra::Shader::TextureProcessMode::LZ: {
|
||||
case Tegra::Shader::TextureProcessMode::None:
|
||||
return "texture(" + sampler + ", coords)";
|
||||
case Tegra::Shader::TextureProcessMode::LZ:
|
||||
if (depth_compare && is_array) {
|
||||
texture = "texture(" + sampler + ", coords)";
|
||||
return "texture(" + sampler + ", coords)";
|
||||
} else {
|
||||
texture = "textureLod(" + sampler + ", coords, 0.0)";
|
||||
return "textureLod(" + sampler + ", coords, 0.0)";
|
||||
}
|
||||
break;
|
||||
}
|
||||
case Tegra::Shader::TextureProcessMode::LL: {
|
||||
texture = "textureLod(" + sampler + ", coords, " + lod_value + ')';
|
||||
break;
|
||||
}
|
||||
default: {
|
||||
texture = "texture(" + sampler + ", coords)";
|
||||
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)";
|
||||
}
|
||||
}
|
||||
if (!depth_compare) {
|
||||
WriteTexsInstruction(instr, coord, texture);
|
||||
} else {
|
||||
WriteTexsInstruction(instr, coord, "vec4(" + texture + ')');
|
||||
}();
|
||||
if (depth_compare) {
|
||||
texture = "vec4(" + texture + ')';
|
||||
}
|
||||
|
||||
WriteTexsInstruction(instr, texture);
|
||||
break;
|
||||
}
|
||||
case OpCode::Id::TLDS: {
|
||||
|
|
@ -2891,15 +2884,12 @@ private:
|
|||
|
||||
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) {
|
||||
case Tegra::Shader::TextureType::Texture1D: {
|
||||
const std::string x = regs.GetRegisterAsInteger(instr.gpr8);
|
||||
coords = "float coords = " + x + ';';
|
||||
shader.AddLine("float coords = " + x + ';');
|
||||
break;
|
||||
}
|
||||
case Tegra::Shader::TextureType::Texture2D: {
|
||||
|
|
@ -2908,7 +2898,7 @@ private:
|
|||
const std::string x = regs.GetRegisterAsInteger(instr.gpr8);
|
||||
const std::string y = regs.GetRegisterAsInteger(instr.gpr20);
|
||||
// shader.AddLine("ivec2 coords = ivec2(" + x + ", " + y + ");");
|
||||
coords = "ivec2 coords = ivec2(" + x + ", " + y + ");";
|
||||
shader.AddLine("ivec2 coords = ivec2(" + x + ", " + y + ");");
|
||||
extra_op_offset = 1;
|
||||
break;
|
||||
}
|
||||
|
|
@ -2917,35 +2907,29 @@ private:
|
|||
}
|
||||
const std::string sampler =
|
||||
GetSampler(instr.sampler, texture_type, is_array, false);
|
||||
std::string texture = "texelFetch(" + sampler + ", coords, 0)";
|
||||
|
||||
const std::string texture = [&]() {
|
||||
switch (instr.tlds.GetTextureProcessMode()) {
|
||||
case Tegra::Shader::TextureProcessMode::LZ: {
|
||||
texture = "texelFetch(" + sampler + ", coords, 0)";
|
||||
break;
|
||||
}
|
||||
case Tegra::Shader::TextureProcessMode::LL: {
|
||||
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) + ';');
|
||||
texture = "texelFetch(" + sampler + ", coords, lod)";
|
||||
break;
|
||||
}
|
||||
default: {
|
||||
texture = "texelFetch(" + sampler + ", coords, 0)";
|
||||
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, coords, texture);
|
||||
}();
|
||||
|
||||
--shader.scope;
|
||||
shader.AddLine('}');
|
||||
WriteTexsInstruction(instr, texture);
|
||||
break;
|
||||
}
|
||||
case OpCode::Id::TLD4: {
|
||||
ASSERT(instr.tld4.texture_type == Tegra::Shader::TextureType::Texture2D);
|
||||
ASSERT(instr.tld4.array == 0);
|
||||
std::string coord;
|
||||
|
||||
UNIMPLEMENTED_IF_MSG(instr.tld4.UsesMiscMode(Tegra::Shader::TextureMiscMode::NODEP),
|
||||
"NODEP is not implemented");
|
||||
|
|
@ -2962,10 +2946,7 @@ private:
|
|||
if (depth_compare)
|
||||
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) {
|
||||
case 2: {
|
||||
|
|
@ -2996,23 +2977,19 @@ private:
|
|||
const std::string texture = "textureGather(" + sampler + ", coords, " +
|
||||
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{};
|
||||
for (std::size_t elem = 0; elem < 4; ++elem) {
|
||||
if (!instr.tex.IsComponentEnabled(elem)) {
|
||||
// Skip disabled components
|
||||
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;
|
||||
}
|
||||
} else {
|
||||
regs.SetRegisterToFloat(instr.gpr0, 0, texture, 1, 1, false);
|
||||
}
|
||||
--shader.scope;
|
||||
shader.AddLine('}');
|
||||
break;
|
||||
}
|
||||
case OpCode::Id::TLD4S: {
|
||||
|
|
@ -3023,10 +3000,7 @@ private:
|
|||
instr.tld4s.UsesMiscMode(Tegra::Shader::TextureMiscMode::AOFFI),
|
||||
"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 =
|
||||
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.
|
||||
const std::string sampler = GetSampler(
|
||||
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
|
||||
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 {
|
||||
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;
|
||||
}
|
||||
case OpCode::Id::TXQ: {
|
||||
UNIMPLEMENTED_IF_MSG(instr.txq.UsesMiscMode(Tegra::Shader::TextureMiscMode::NODEP),
|
||||
"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
|
||||
// uses. This must be fixed at a later instance.
|
||||
const std::string sampler =
|
||||
|
|
@ -3072,7 +3042,8 @@ private:
|
|||
regs.GetRegisterAsInteger(instr.gpr8) + ')';
|
||||
const std::string mip_level = "textureQueryLevels(" + sampler + ')';
|
||||
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() + 2, true, 0, "0", 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()));
|
||||
}
|
||||
}
|
||||
--shader.scope;
|
||||
shader.AddLine('}');
|
||||
break;
|
||||
}
|
||||
case OpCode::Id::TMML: {
|
||||
|
|
@ -3099,17 +3068,18 @@ private:
|
|||
const std::string sampler =
|
||||
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.
|
||||
std::string coord;
|
||||
switch (texture_type) {
|
||||
case Tegra::Shader::TextureType::Texture1D: {
|
||||
coord = "float coords = " + x + ';';
|
||||
shader.AddLine("float coords = " + x + ';');
|
||||
break;
|
||||
}
|
||||
case Tegra::Shader::TextureType::Texture2D: {
|
||||
const std::string y = regs.GetRegisterAsFloat(instr.gpr8.Value() + 1);
|
||||
coord = "vec2 coords = vec2(" + x + ", " + y + ");";
|
||||
shader.AddLine("vec2 coords = vec2(" + x + ", " + y + ");");
|
||||
break;
|
||||
}
|
||||
default:
|
||||
|
|
@ -3117,22 +3087,15 @@ private:
|
|||
|
||||
// Fallback to interpreting as a 2D texture for now
|
||||
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;
|
||||
}
|
||||
// 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);
|
||||
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.Value() + 1, false, 0, "uint(tmp.x)", 1, 1);
|
||||
--shader.scope;
|
||||
shader.AddLine('}');
|
||||
break;
|
||||
}
|
||||
default: {
|
||||
|
|
|
|||
Loading…
Reference in a new issue