diff options
Diffstat (limited to 'src/video_core')
-rw-r--r-- | src/video_core/engines/maxwell_3d.h | 7 | ||||
-rw-r--r-- | src/video_core/engines/shader_bytecode.h | 1 | ||||
-rw-r--r-- | src/video_core/macro_interpreter.cpp | 29 | ||||
-rw-r--r-- | src/video_core/macro_interpreter.h | 4 | ||||
-rw-r--r-- | src/video_core/renderer_opengl/gl_shader_decompiler.cpp | 169 | ||||
-rw-r--r-- | src/video_core/renderer_opengl/maxwell_to_gl.h | 5 |
6 files changed, 140 insertions, 75 deletions
diff --git a/src/video_core/engines/maxwell_3d.h b/src/video_core/engines/maxwell_3d.h index 9e480dc39..eff6abd55 100644 --- a/src/video_core/engines/maxwell_3d.h +++ b/src/video_core/engines/maxwell_3d.h @@ -389,6 +389,13 @@ public: ReverseSubtract = 3, Min = 4, Max = 5, + + // These values are used by Nouveau and some games. + AddGL = 0x8006, + SubtractGL = 0x8007, + ReverseSubtractGL = 0x8008, + MinGL = 0x800a, + MaxGL = 0x800b }; enum class Factor : u32 { diff --git a/src/video_core/engines/shader_bytecode.h b/src/video_core/engines/shader_bytecode.h index 83a6fd875..c5f502ce1 100644 --- a/src/video_core/engines/shader_bytecode.h +++ b/src/video_core/engines/shader_bytecode.h @@ -153,6 +153,7 @@ enum class PredCondition : u64 { NotEqual = 5, GreaterEqual = 6, LessThanWithNan = 9, + LessEqualWithNan = 11, GreaterThanWithNan = 12, NotEqualWithNan = 13, GreaterEqualWithNan = 14, diff --git a/src/video_core/macro_interpreter.cpp b/src/video_core/macro_interpreter.cpp index 335a8d407..2b0dea5cd 100644 --- a/src/video_core/macro_interpreter.cpp +++ b/src/video_core/macro_interpreter.cpp @@ -35,6 +35,7 @@ void MacroInterpreter::Reset() { // The next parameter index starts at 1, because $r1 already has the value of the first // parameter. next_parameter_index = 1; + carry_flag = false; } bool MacroInterpreter::Step(u32 offset, bool is_delay_slot) { @@ -135,14 +136,28 @@ MacroInterpreter::Opcode MacroInterpreter::GetOpcode(u32 offset) const { return {macro_memory[offset + pc / sizeof(u32)]}; } -u32 MacroInterpreter::GetALUResult(ALUOperation operation, u32 src_a, u32 src_b) const { +u32 MacroInterpreter::GetALUResult(ALUOperation operation, u32 src_a, u32 src_b) { switch (operation) { - case ALUOperation::Add: - return src_a + src_b; - // TODO(Subv): Implement AddWithCarry - case ALUOperation::Subtract: - return src_a - src_b; - // TODO(Subv): Implement SubtractWithBorrow + case ALUOperation::Add: { + const u64 result{static_cast<u64>(src_a) + src_b}; + carry_flag = result > 0xffffffff; + return static_cast<u32>(result); + } + case ALUOperation::AddWithCarry: { + const u64 result{static_cast<u64>(src_a) + src_b + (carry_flag ? 1ULL : 0ULL)}; + carry_flag = result > 0xffffffff; + return static_cast<u32>(result); + } + case ALUOperation::Subtract: { + const u64 result{static_cast<u64>(src_a) - src_b}; + carry_flag = result < 0x100000000; + return static_cast<u32>(result); + } + case ALUOperation::SubtractWithBorrow: { + const u64 result{static_cast<u64>(src_a) - src_b - (carry_flag ? 0ULL : 1ULL)}; + carry_flag = result < 0x100000000; + return static_cast<u32>(result); + } case ALUOperation::Xor: return src_a ^ src_b; case ALUOperation::Or: diff --git a/src/video_core/macro_interpreter.h b/src/video_core/macro_interpreter.h index 62d1ce289..cde360288 100644 --- a/src/video_core/macro_interpreter.h +++ b/src/video_core/macro_interpreter.h @@ -117,7 +117,7 @@ private: bool Step(u32 offset, bool is_delay_slot); /// Calculates the result of an ALU operation. src_a OP src_b; - u32 GetALUResult(ALUOperation operation, u32 src_a, u32 src_b) const; + u32 GetALUResult(ALUOperation operation, u32 src_a, u32 src_b); /// Performs the result operation on the input result and stores it in the specified register /// (if necessary). @@ -165,5 +165,7 @@ private: std::vector<u32> parameters; /// Index of the next parameter that will be fetched by the 'parm' instruction. u32 next_parameter_index = 0; + + bool carry_flag{}; }; } // namespace Tegra diff --git a/src/video_core/renderer_opengl/gl_shader_decompiler.cpp b/src/video_core/renderer_opengl/gl_shader_decompiler.cpp index 90a88b91a..ba80e5832 100644 --- a/src/video_core/renderer_opengl/gl_shader_decompiler.cpp +++ b/src/video_core/renderer_opengl/gl_shader_decompiler.cpp @@ -1059,11 +1059,17 @@ private: const std::string& op_a, const std::string& op_b) const { using Tegra::Shader::PredCondition; static const std::unordered_map<PredCondition, const char*> PredicateComparisonStrings = { - {PredCondition::LessThan, "<"}, {PredCondition::Equal, "=="}, - {PredCondition::LessEqual, "<="}, {PredCondition::GreaterThan, ">"}, - {PredCondition::NotEqual, "!="}, {PredCondition::GreaterEqual, ">="}, - {PredCondition::LessThanWithNan, "<"}, {PredCondition::NotEqualWithNan, "!="}, - {PredCondition::GreaterThanWithNan, ">"}, {PredCondition::GreaterEqualWithNan, ">="}}; + {PredCondition::LessThan, "<"}, + {PredCondition::Equal, "=="}, + {PredCondition::LessEqual, "<="}, + {PredCondition::GreaterThan, ">"}, + {PredCondition::NotEqual, "!="}, + {PredCondition::GreaterEqual, ">="}, + {PredCondition::LessThanWithNan, "<"}, + {PredCondition::NotEqualWithNan, "!="}, + {PredCondition::LessEqualWithNan, "<="}, + {PredCondition::GreaterThanWithNan, ">"}, + {PredCondition::GreaterEqualWithNan, ">="}}; const auto& comparison{PredicateComparisonStrings.find(condition)}; UNIMPLEMENTED_IF_MSG(comparison == PredicateComparisonStrings.end(), @@ -1072,6 +1078,7 @@ private: std::string predicate{'(' + op_a + ") " + comparison->second + " (" + op_b + ')'}; if (condition == PredCondition::LessThanWithNan || condition == PredCondition::NotEqualWithNan || + condition == PredCondition::LessEqualWithNan || condition == PredCondition::GreaterThanWithNan || condition == PredCondition::GreaterEqualWithNan) { predicate += " || isnan(" + op_a + ") || isnan(" + op_b + ')'; @@ -1243,14 +1250,7 @@ private: 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); - + void WriteTexsInstruction(const Instruction& instr, const std::string& texture) { // 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 @@ -1273,9 +1273,6 @@ private: ++written_components; } - - --shader.scope; - shader.AddLine('}'); } static u32 TextureCoordinates(Tegra::Shader::TextureType texture_type) { @@ -2563,7 +2560,6 @@ private: } // TODO: make sure coordinates are always indexed to gpr8 and gpr20 is always bias // or lod. - std::string op_c; const std::string sampler = GetSampler(instr.sampler, texture_type, is_array, depth_compare); @@ -2586,27 +2582,35 @@ private: } case Tegra::Shader::TextureProcessMode::LB: case Tegra::Shader::TextureProcessMode::LBA: { - if (depth_compare) { - if (is_array) - op_c = regs.GetRegisterAsFloat(instr.gpr20.Value() + 2); - else - op_c = regs.GetRegisterAsFloat(instr.gpr20.Value() + 1); - } else { - op_c = regs.GetRegisterAsFloat(instr.gpr20); - } + const std::string bias = [&]() { + if (depth_compare) { + if (is_array) + return regs.GetRegisterAsFloat(instr.gpr20.Value() + 2); + else + return regs.GetRegisterAsFloat(instr.gpr20.Value() + 1); + } else { + return regs.GetRegisterAsFloat(instr.gpr20); + } + }(); + shader.AddLine("float bias = " + bias + ';'); + // TODO: Figure if A suffix changes the equation at all. - texture = "texture(" + sampler + ", coords, " + op_c + ')'; + texture = "texture(" + sampler + ", coords, bias)"; break; } case Tegra::Shader::TextureProcessMode::LL: case Tegra::Shader::TextureProcessMode::LLA: { - if (num_coordinates <= 2) { - op_c = regs.GetRegisterAsFloat(instr.gpr20); - } else { - op_c = regs.GetRegisterAsFloat(instr.gpr20.Value() + 1); - } + const std::string lod = [&]() { + if (num_coordinates <= 2) { + return regs.GetRegisterAsFloat(instr.gpr20); + } else { + return regs.GetRegisterAsFloat(instr.gpr20.Value() + 1); + } + }(); + shader.AddLine("float lod = " + lod + ';'); + // TODO: Figure if A suffix changes the equation at all. - texture = "textureLod(" + sampler + ", coords, " + op_c + ')'; + texture = "textureLod(" + sampler + ", coords, lod)"; break; } default: { @@ -2633,7 +2637,6 @@ private: break; } case OpCode::Id::TEXS: { - std::string coord; Tegra::Shader::TextureType texture_type{instr.texs.GetTextureType()}; bool is_array{instr.texs.IsArrayTexture()}; @@ -2646,17 +2649,21 @@ private: if (depth_compare) num_coordinates += 1; + // Scope to avoid variable name overlaps. + shader.AddLine('{'); + ++shader.scope; + switch (num_coordinates) { case 2: { if (is_array) { 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 { 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 + ");"); } break; } @@ -2666,13 +2673,13 @@ private: const std::string x = regs.GetRegisterAsFloat(instr.gpr8.Value() + 1); const std::string y = regs.GetRegisterAsFloat(instr.gpr8.Value() + 2); const std::string z = regs.GetRegisterAsFloat(instr.gpr20); - coord = - "vec4 coords = vec4(" + x + ", " + y + ", " + z + ", " + index + ");"; + shader.AddLine("vec4 coords = vec4(" + x + ", " + y + ", " + z + ", " + + index + ");"); } else { 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; } @@ -2683,7 +2690,7 @@ 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; } @@ -2715,14 +2722,16 @@ private: } } if (!depth_compare) { - WriteTexsInstruction(instr, coord, texture); + WriteTexsInstruction(instr, texture); } else { - WriteTexsInstruction(instr, coord, "vec4(" + texture + ')'); + WriteTexsInstruction(instr, "vec4(" + texture + ')'); } + + shader.AddLine('}'); + --shader.scope; break; } case OpCode::Id::TLDS: { - std::string coord; const Tegra::Shader::TextureType texture_type{instr.tlds.GetTextureType()}; const bool is_array{instr.tlds.IsArrayTexture()}; @@ -2736,12 +2745,16 @@ private: UNIMPLEMENTED_IF_MSG(instr.tlds.UsesMiscMode(Tegra::Shader::TextureMiscMode::MZ), "MZ is not implemented"); - u32 op_c_offset = 0; + u32 extra_op_offset = 0; + + // Scope to avoid variable name overlaps. + shader.AddLine('{'); + ++shader.scope; switch (texture_type) { case Tegra::Shader::TextureType::Texture1D: { const std::string x = regs.GetRegisterAsInteger(instr.gpr8); - coord = "int coords = " + x + ';'; + shader.AddLine("int coords = " + x + ';'); break; } case Tegra::Shader::TextureType::Texture2D: { @@ -2749,8 +2762,8 @@ private: const std::string x = regs.GetRegisterAsInteger(instr.gpr8); const std::string y = regs.GetRegisterAsInteger(instr.gpr20); - coord = "ivec2 coords = ivec2(" + x + ", " + y + ");"; - op_c_offset = 1; + shader.AddLine("ivec2 coords = ivec2(" + x + ", " + y + ");"); + extra_op_offset = 1; break; } default: @@ -2765,9 +2778,10 @@ private: break; } case Tegra::Shader::TextureProcessMode::LL: { - const std::string op_c = - regs.GetRegisterAsInteger(instr.gpr20.Value() + op_c_offset); - texture = "texelFetch(" + sampler + ", coords, " + op_c + ')'; + shader.AddLine( + "float lod = " + + regs.GetRegisterAsInteger(instr.gpr20.Value() + extra_op_offset) + ';'); + texture = "texelFetch(" + sampler + ", coords, lod)"; break; } default: { @@ -2776,7 +2790,10 @@ private: static_cast<u32>(instr.tlds.GetTextureProcessMode())); } } - WriteTexsInstruction(instr, coord, texture); + WriteTexsInstruction(instr, texture); + + --shader.scope; + shader.AddLine('}'); break; } case OpCode::Id::TLD4: { @@ -2799,18 +2816,23 @@ 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; + switch (num_coordinates) { case 2: { 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 + ");"); break; } case 3: { 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.gpr8.Value() + 2); - coord = "vec3 coords = vec3(" + x + ", " + y + ", " + z + ");"; + shader.AddLine("vec3 coords = vec3(" + x + ", " + y + ", " + z + ");"); break; } default: @@ -2818,17 +2840,13 @@ private: static_cast<u32>(num_coordinates)); 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 + ");"); texture_type = Tegra::Shader::TextureType::Texture2D; } const std::string sampler = GetSampler(instr.sampler, texture_type, false, depth_compare); - // 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 = "textureGather(" + sampler + ", coords, " + std::to_string(instr.tld4.component) + ')'; if (!depth_compare) { @@ -2845,7 +2863,7 @@ private: regs.SetRegisterToFloat(instr.gpr0, 0, texture, 1, 1, false); } --shader.scope; - shader.AddLine("}"); + shader.AddLine('}'); break; } case OpCode::Id::TLD4S: { @@ -2856,6 +2874,10 @@ private: instr.tld4s.UsesMiscMode(Tegra::Shader::TextureMiscMode::AOFFI), "AOFFI is not implemented"); + // Scope to avoid variable name overlaps. + shader.AddLine('{'); + ++shader.scope; + const bool depth_compare = instr.tld4s.UsesMiscMode(Tegra::Shader::TextureMiscMode::DC); const std::string op_a = regs.GetRegisterAsFloat(instr.gpr8); @@ -2863,28 +2885,33 @@ 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); - std::string coord; if (!depth_compare) { - coord = "vec2 coords = vec2(" + op_a + ", " + op_b + ");"; + shader.AddLine("vec2 coords = vec2(" + op_a + ", " + op_b + ");"); } else { // Note: TLD4S coordinate encoding works just like TEXS's - const std::string op_c = regs.GetRegisterAsFloat(instr.gpr8.Value() + 1); - coord = "vec3 coords = vec3(" + op_a + ", " + op_c + ", " + op_b + ");"; + shader.AddLine( + "float op_y = " + regs.GetRegisterAsFloat(instr.gpr8.Value() + 1) + ';'); + shader.AddLine("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, coord, texture); + WriteTexsInstruction(instr, texture); } else { - WriteTexsInstruction(instr, coord, "vec4(" + texture + ')'); + WriteTexsInstruction(instr, "vec4(" + texture + ')'); } + + --shader.scope; + shader.AddLine('}'); 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. // Sadly, not all texture instructions specify the type of texture their sampler // uses. This must be fixed at a later instance. @@ -2892,8 +2919,14 @@ private: GetSampler(instr.sampler, Tegra::Shader::TextureType::Texture2D, false, false); switch (instr.txq.query_type) { case Tegra::Shader::TextureQueryType::Dimension: { - const std::string texture = "textureQueryLevels(" + sampler + ')'; - regs.SetRegisterToInteger(instr.gpr0, true, 0, texture, 1, 1); + const std::string texture = "textureSize(" + sampler + ", " + + 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() + 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); break; } default: { @@ -2901,6 +2934,8 @@ private: static_cast<u32>(instr.txq.query_type.Value())); } } + --shader.scope; + shader.AddLine('}'); break; } case OpCode::Id::TMML: { diff --git a/src/video_core/renderer_opengl/maxwell_to_gl.h b/src/video_core/renderer_opengl/maxwell_to_gl.h index 065b3929c..a8833c06e 100644 --- a/src/video_core/renderer_opengl/maxwell_to_gl.h +++ b/src/video_core/renderer_opengl/maxwell_to_gl.h @@ -218,14 +218,19 @@ inline GLenum DepthCompareFunc(Tegra::Texture::DepthCompareFunc func) { inline GLenum BlendEquation(Maxwell::Blend::Equation equation) { switch (equation) { case Maxwell::Blend::Equation::Add: + case Maxwell::Blend::Equation::AddGL: return GL_FUNC_ADD; case Maxwell::Blend::Equation::Subtract: + case Maxwell::Blend::Equation::SubtractGL: return GL_FUNC_SUBTRACT; case Maxwell::Blend::Equation::ReverseSubtract: + case Maxwell::Blend::Equation::ReverseSubtractGL: return GL_FUNC_REVERSE_SUBTRACT; case Maxwell::Blend::Equation::Min: + case Maxwell::Blend::Equation::MinGL: return GL_MIN; case Maxwell::Blend::Equation::Max: + case Maxwell::Blend::Equation::MaxGL: return GL_MAX; } LOG_ERROR(Render_OpenGL, "Unimplemented blend equation={}", static_cast<u32>(equation)); |