diff options
Diffstat (limited to '')
| -rw-r--r-- | src/video_core/renderer_opengl/gl_shader_decompiler.cpp | 93 |
1 files changed, 15 insertions, 78 deletions
diff --git a/src/video_core/renderer_opengl/gl_shader_decompiler.cpp b/src/video_core/renderer_opengl/gl_shader_decompiler.cpp index b48d30466..6485d75a8 100644 --- a/src/video_core/renderer_opengl/gl_shader_decompiler.cpp +++ b/src/video_core/renderer_opengl/gl_shader_decompiler.cpp @@ -191,48 +191,21 @@ public: UnsignedInteger, }; - GLSLRegister(size_t index, ShaderWriter& shader, const std::string& suffix) - : index{index}, shader{shader}, suffix{suffix} {} + GLSLRegister(size_t index, const std::string& suffix) : index{index}, suffix{suffix} {} /// Gets the GLSL type string for a register - static std::string GetTypeString(Type type) { - switch (type) { - case Type::Float: - return "float"; - case Type::Integer: - return "int"; - case Type::UnsignedInteger: - return "uint"; - } - - UNREACHABLE(); - return {}; + static std::string GetTypeString() { + return "float"; } /// Gets the GLSL register prefix string, used for declarations and referencing - static std::string GetPrefixString(Type type) { - return "reg_" + GetTypeString(type) + '_'; + static std::string GetPrefixString() { + return "reg_"; } /// Returns a GLSL string representing the current state of the register - std::string GetActiveString() { - declr_type.insert(active_type); - return GetPrefixString(active_type) + std::to_string(index) + '_' + suffix; - } - - /// Returns true if the active type is a float - bool IsFloat() const { - return active_type == Type::Float; - } - - /// Returns true if the active type is an integer - bool IsInteger() const { - return active_type == Type::Integer; - } - - /// Returns the current active type of the register - Type GetActiveType() const { - return active_type; + std::string GetString() const { + return GetPrefixString() + std::to_string(index) + '_' + suffix; } /// Returns the index of the register @@ -240,18 +213,8 @@ public: return index; } - /// Returns a set of the declared types of the register - const std::set<Type>& DeclaredTypes() const { - return declr_type; - } - private: const size_t index; - const std::string float_str; - const std::string integer_str; - ShaderWriter& shader; - Type active_type{Type::Float}; - std::set<Type> declr_type; const std::string& suffix; }; @@ -297,7 +260,6 @@ public: * @returns GLSL string corresponding to the register as a float. */ std::string GetRegisterAsFloat(const Register& reg, unsigned elem = 0) { - ASSERT(regs[reg].IsFloat()); return GetRegister(reg, elem); } @@ -311,12 +273,8 @@ public: */ std::string GetRegisterAsInteger(const Register& reg, unsigned elem = 0, bool is_signed = true, Register::Size size = Register::Size::Word) { - const std::string func = GetGLSLConversionFunc( - GLSLRegister::Type::Float, - is_signed ? GLSLRegister::Type::Integer : GLSLRegister::Type::UnsignedInteger); - - std::string value = func + '(' + GetRegister(reg, elem) + ')'; - + const std::string func{is_signed ? "floatBitsToInt" : "floatBitsToUint"}; + const std::string value{func + '(' + GetRegister(reg, elem) + ')'}; return ConvertIntegerSize(value, size); } @@ -355,9 +313,7 @@ public: u64 dest_elem = 0, Register::Size size = Register::Size::Word) { ASSERT_MSG(!is_saturated, "Unimplemented"); - const std::string func = GetGLSLConversionFunc( - is_signed ? GLSLRegister::Type::Integer : GLSLRegister::Type::UnsignedInteger, - GLSLRegister::Type::Float); + const std::string func{is_signed ? "intBitsToFloat" : "uintBitsToFloat"}; SetRegister(reg, elem, func + '(' + ConvertIntegerSize(value, size) + ')', dest_num_components, value_num_components, dest_elem); @@ -373,14 +329,7 @@ public: void SetRegisterToInputAttibute(const Register& reg, u64 elem, Attribute::Index attribute) { std::string dest = GetRegisterAsFloat(reg); std::string src = GetInputAttribute(attribute) + GetSwizzle(elem); - - if (regs[reg].IsFloat()) { - shader.AddLine(dest + " = " + src + ';'); - } else if (regs[reg].IsInteger()) { - shader.AddLine(dest + " = floatBitsToInt(" + src + ");"); - } else { - UNREACHABLE(); - } + shader.AddLine(dest + " = " + src + ';'); } /** @@ -393,7 +342,6 @@ public: void SetOutputAttributeToRegister(Attribute::Index attribute, u64 elem, const Register& reg) { std::string dest = GetOutputAttribute(attribute) + GetSwizzle(elem); std::string src = GetRegisterAsFloat(reg); - ASSERT_MSG(regs[reg].IsFloat(), "Output attributes must be set to a float"); shader.AddLine(dest + " = " + src + ';'); } @@ -434,11 +382,8 @@ public: /// Add declarations for registers void GenerateDeclarations(const std::string& suffix) { for (const auto& reg : regs) { - for (const auto& type : reg.DeclaredTypes()) { - declarations.AddLine(GLSLRegister::GetTypeString(type) + ' ' + - reg.GetPrefixString(type) + std::to_string(reg.GetIndex()) + - '_' + suffix + " = 0;"); - } + declarations.AddLine(GLSLRegister::GetTypeString() + ' ' + reg.GetPrefixString() + + std::to_string(reg.GetIndex()) + '_' + suffix + " = 0;"); } declarations.AddNewLine(); @@ -516,21 +461,13 @@ public: } private: - /// Build GLSL conversion function, e.g. floatBitsToInt, intBitsToFloat, etc. - std::string GetGLSLConversionFunc(GLSLRegister::Type src, GLSLRegister::Type dest) const { - const std::string src_type = GLSLRegister::GetTypeString(src); - std::string dest_type = GLSLRegister::GetTypeString(dest); - dest_type[0] = toupper(dest_type[0]); - return src_type + "BitsTo" + dest_type; - } - /// Generates code representing a temporary (GPR) register. std::string GetRegister(const Register& reg, unsigned elem) { if (reg == Register::ZeroIndex) { return "0"; } - return regs[reg.GetSwizzledIndex(elem)].GetActiveString(); + return regs[reg.GetSwizzledIndex(elem)].GetString(); } /** @@ -560,7 +497,7 @@ private: /// Build the GLSL register list. void BuildRegisterList() { for (size_t index = 0; index < Register::NumRegisters; ++index) { - regs.emplace_back(index, shader, suffix); + regs.emplace_back(index, suffix); } } |