diff options
Diffstat (limited to 'src/3rdparty/angle/src/libANGLE/renderer/d3d/DynamicHLSL.cpp')
| -rw-r--r-- | src/3rdparty/angle/src/libANGLE/renderer/d3d/DynamicHLSL.cpp | 1554 |
1 files changed, 691 insertions, 863 deletions
diff --git a/src/3rdparty/angle/src/libANGLE/renderer/d3d/DynamicHLSL.cpp b/src/3rdparty/angle/src/libANGLE/renderer/d3d/DynamicHLSL.cpp index 0dbc30ae36..42a534f573 100644 --- a/src/3rdparty/angle/src/libANGLE/renderer/d3d/DynamicHLSL.cpp +++ b/src/3rdparty/angle/src/libANGLE/renderer/d3d/DynamicHLSL.cpp @@ -10,14 +10,13 @@ #include "common/utilities.h" #include "compiler/translator/blocklayoutHLSL.h" -#include "libANGLE/renderer/d3d/ShaderD3D.h" -#include "libANGLE/renderer/d3d/RendererD3D.h" #include "libANGLE/Program.h" #include "libANGLE/Shader.h" #include "libANGLE/formatutils.h" - -// For use with ArrayString, see angleutils.h -static_assert(GL_INVALID_INDEX == UINT_MAX, "GL_INVALID_INDEX must be equal to the max unsigned int."); +#include "libANGLE/renderer/d3d/ProgramD3D.h" +#include "libANGLE/renderer/d3d/RendererD3D.h" +#include "libANGLE/renderer/d3d/ShaderD3D.h" +#include "libANGLE/renderer/d3d/VaryingPacking.h" using namespace gl; @@ -31,12 +30,17 @@ std::string HLSLComponentTypeString(GLenum componentType) { switch (componentType) { - case GL_UNSIGNED_INT: return "uint"; - case GL_INT: return "int"; - case GL_UNSIGNED_NORMALIZED: - case GL_SIGNED_NORMALIZED: - case GL_FLOAT: return "float"; - default: UNREACHABLE(); return "not-component-type"; + case GL_UNSIGNED_INT: + return "uint"; + case GL_INT: + return "int"; + case GL_UNSIGNED_NORMALIZED: + case GL_SIGNED_NORMALIZED: + case GL_FLOAT: + return "float"; + default: + UNREACHABLE(); + return "not-component-type"; } } @@ -49,16 +53,27 @@ std::string HLSLMatrixTypeString(GLenum type) { switch (type) { - case GL_FLOAT_MAT2: return "float2x2"; - case GL_FLOAT_MAT3: return "float3x3"; - case GL_FLOAT_MAT4: return "float4x4"; - case GL_FLOAT_MAT2x3: return "float2x3"; - case GL_FLOAT_MAT3x2: return "float3x2"; - case GL_FLOAT_MAT2x4: return "float2x4"; - case GL_FLOAT_MAT4x2: return "float4x2"; - case GL_FLOAT_MAT3x4: return "float3x4"; - case GL_FLOAT_MAT4x3: return "float4x3"; - default: UNREACHABLE(); return "not-matrix-type"; + case GL_FLOAT_MAT2: + return "float2x2"; + case GL_FLOAT_MAT3: + return "float3x3"; + case GL_FLOAT_MAT4: + return "float4x4"; + case GL_FLOAT_MAT2x3: + return "float2x3"; + case GL_FLOAT_MAT3x2: + return "float3x2"; + case GL_FLOAT_MAT2x4: + return "float2x4"; + case GL_FLOAT_MAT4x2: + return "float4x2"; + case GL_FLOAT_MAT3x4: + return "float3x4"; + case GL_FLOAT_MAT4x3: + return "float4x3"; + default: + UNREACHABLE(); + return "not-matrix-type"; } } @@ -69,11 +84,13 @@ std::string HLSLTypeString(GLenum type) return HLSLMatrixTypeString(type); } - return HLSLComponentTypeString(gl::VariableComponentType(type), gl::VariableComponentCount(type)); + return HLSLComponentTypeString(gl::VariableComponentType(type), + gl::VariableComponentCount(type)); } -const PixelShaderOutputVariable *FindOutputAtLocation(const std::vector<PixelShaderOutputVariable> &outputVariables, - unsigned int location) +const PixelShaderOutputVariable *FindOutputAtLocation( + const std::vector<PixelShaderOutputVariable> &outputVariables, + unsigned int location) { for (size_t variableIndex = 0; variableIndex < outputVariables.size(); ++variableIndex) { @@ -83,314 +100,102 @@ const PixelShaderOutputVariable *FindOutputAtLocation(const std::vector<PixelSha } } - return NULL; -} - -const std::string VERTEX_ATTRIBUTE_STUB_STRING = "@@ VERTEX ATTRIBUTES @@"; -const std::string PIXEL_OUTPUT_STUB_STRING = "@@ PIXEL OUTPUT @@"; - -} - -DynamicHLSL::DynamicHLSL(RendererD3D *const renderer) - : mRenderer(renderer) -{ + return nullptr; } -static bool packVarying(PackedVarying *varying, const int maxVaryingVectors, VaryingPacking packing) +void WriteArrayString(std::stringstream &strstr, unsigned int i) { - // Make sure we use transposed matrix types to count registers correctly. - int registers = 0; - int elements = 0; - - if (varying->isStruct()) - { - registers = HLSLVariableRegisterCount(*varying, true) * varying->elementCount(); - elements = 4; - } - else + static_assert(GL_INVALID_INDEX == UINT_MAX, + "GL_INVALID_INDEX must be equal to the max unsigned int."); + if (i == UINT_MAX) { - GLenum transposedType = TransposeMatrixType(varying->type); - registers = VariableRowCount(transposedType) * varying->elementCount(); - elements = VariableColumnCount(transposedType); + return; } - if (elements >= 2 && elements <= 4) - { - for (int r = 0; r <= maxVaryingVectors - registers; r++) - { - bool available = true; - - for (int y = 0; y < registers && available; y++) - { - for (int x = 0; x < elements && available; x++) - { - if (packing[r + y][x]) - { - available = false; - } - } - } - - if (available) - { - varying->registerIndex = r; - varying->columnIndex = 0; - - for (int y = 0; y < registers; y++) - { - for (int x = 0; x < elements; x++) - { - packing[r + y][x] = &*varying; - } - } - - return true; - } - } - - if (elements == 2) - { - for (int r = maxVaryingVectors - registers; r >= 0; r--) - { - bool available = true; - - for (int y = 0; y < registers && available; y++) - { - for (int x = 2; x < 4 && available; x++) - { - if (packing[r + y][x]) - { - available = false; - } - } - } - - if (available) - { - varying->registerIndex = r; - varying->columnIndex = 2; - - for (int y = 0; y < registers; y++) - { - for (int x = 2; x < 4; x++) - { - packing[r + y][x] = &*varying; - } - } - - return true; - } - } - } - } - else if (elements == 1) - { - int space[4] = { 0 }; - - for (int y = 0; y < maxVaryingVectors; y++) - { - for (int x = 0; x < 4; x++) - { - space[x] += packing[y][x] ? 0 : 1; - } - } - - int column = 0; - - for (int x = 0; x < 4; x++) - { - if (space[x] >= registers && (space[column] < registers || space[x] < space[column])) - { - column = x; - } - } + strstr << "["; + strstr << i; + strstr << "]"; +} - if (space[column] >= registers) - { - for (int r = 0; r < maxVaryingVectors; r++) - { - if (!packing[r][column]) - { - varying->registerIndex = r; - varying->columnIndex = column; +const std::string VERTEX_ATTRIBUTE_STUB_STRING = "@@ VERTEX ATTRIBUTES @@"; +const std::string PIXEL_OUTPUT_STUB_STRING = "@@ PIXEL OUTPUT @@"; +} // anonymous namespace - for (int y = r; y < r + registers; y++) - { - packing[y][column] = &*varying; - } +std::string GetVaryingSemantic(int majorShaderModel, bool programUsesPointSize) +{ + // SM3 reserves the TEXCOORD semantic for point sprite texcoords (gl_PointCoord) + // In D3D11 we manually compute gl_PointCoord in the GS. + return ((programUsesPointSize && majorShaderModel < 4) ? "COLOR" : "TEXCOORD"); +} - break; - } - } +// DynamicHLSL implementation - return true; - } - } - else UNREACHABLE(); - - return false; +DynamicHLSL::DynamicHLSL(RendererD3D *const renderer) : mRenderer(renderer) +{ } -// Packs varyings into generic varying registers, using the algorithm from [OpenGL ES Shading Language 1.00 rev. 17] appendix A section 7 page 111 -// Returns the number of used varying registers, or -1 if unsuccesful -int DynamicHLSL::packVaryings(InfoLog &infoLog, VaryingPacking packing, ShaderD3D *fragmentShader, - ShaderD3D *vertexShader, const std::vector<std::string> &transformFeedbackVaryings) +void DynamicHLSL::generateVaryingHLSL(const VaryingPacking &varyingPacking, + std::stringstream &hlslStream) const { - // TODO (geofflang): Use context's caps - const int maxVaryingVectors = mRenderer->getRendererCaps().maxVaryingVectors; - - vertexShader->resetVaryingsRegisterAssignment(); - fragmentShader->resetVaryingsRegisterAssignment(); + std::string varyingSemantic = + GetVaryingSemantic(mRenderer->getMajorShaderModel(), varyingPacking.usesPointSize()); - std::set<std::string> packedVaryings; - - std::vector<gl::PackedVarying> &fragmentVaryings = fragmentShader->getVaryings(); - std::vector<gl::PackedVarying> &vertexVaryings = vertexShader->getVaryings(); - for (unsigned int varyingIndex = 0; varyingIndex < fragmentVaryings.size(); varyingIndex++) + for (const PackedVaryingRegister ®isterInfo : varyingPacking.getRegisterList()) { - PackedVarying *varying = &fragmentVaryings[varyingIndex]; - - // Do not assign registers to built-in or unreferenced varyings - if (varying->isBuiltIn() || !varying->staticUse) - { - continue; - } - - if (packVarying(varying, maxVaryingVectors, packing)) - { - packedVaryings.insert(varying->name); - } - else - { - infoLog.append("Could not pack varying %s", varying->name.c_str()); - return -1; - } - } + const auto &varying = *registerInfo.packedVarying->varying; + ASSERT(!varying.isStruct()); - for (unsigned int feedbackVaryingIndex = 0; feedbackVaryingIndex < transformFeedbackVaryings.size(); feedbackVaryingIndex++) - { - const std::string &transformFeedbackVarying = transformFeedbackVaryings[feedbackVaryingIndex]; + // TODO: Add checks to ensure D3D interpolation modifiers don't result in too many + // registers being used. + // For example, if there are N registers, and we have N vec3 varyings and 1 float + // varying, then D3D will pack them into N registers. + // If the float varying has the 'nointerpolation' modifier on it then we would need + // N + 1 registers, and D3D compilation will fail. - if (transformFeedbackVarying == "gl_Position" || transformFeedbackVarying == "gl_PointSize") + switch (registerInfo.packedVarying->interpolation) { - // do not pack builtin XFB varyings - continue; + case sh::INTERPOLATION_SMOOTH: + hlslStream << " "; + break; + case sh::INTERPOLATION_FLAT: + hlslStream << " nointerpolation "; + break; + case sh::INTERPOLATION_CENTROID: + hlslStream << " centroid "; + break; + default: + UNREACHABLE(); } - if (packedVaryings.find(transformFeedbackVarying) == packedVaryings.end()) - { - bool found = false; - for (unsigned int varyingIndex = 0; varyingIndex < vertexVaryings.size(); varyingIndex++) - { - PackedVarying *varying = &vertexVaryings[varyingIndex]; - if (transformFeedbackVarying == varying->name) - { - if (!packVarying(varying, maxVaryingVectors, packing)) - { - infoLog.append("Could not pack varying %s", varying->name.c_str()); - return -1; - } - - found = true; - break; - } - } - - if (!found) - { - infoLog.append("Transform feedback varying %s does not exist in the vertex shader.", transformFeedbackVarying.c_str()); - return -1; - } - } - } - - // Return the number of used registers - int registers = 0; - - for (int r = 0; r < maxVaryingVectors; r++) - { - if (packing[r][0] || packing[r][1] || packing[r][2] || packing[r][3]) - { - registers++; - } + GLenum transposedType = gl::TransposeMatrixType(varying.type); + GLenum componentType = gl::VariableComponentType(transposedType); + int columnCount = gl::VariableColumnCount(transposedType); + hlslStream << HLSLComponentTypeString(componentType, columnCount); + unsigned int semanticIndex = registerInfo.semanticIndex; + hlslStream << " v" << semanticIndex << " : " << varyingSemantic << semanticIndex << ";\n"; } - - return registers; } -std::string DynamicHLSL::generateVaryingHLSL(const ShaderD3D *shader) const +std::string DynamicHLSL::generateVertexShaderForInputLayout( + const std::string &sourceShader, + const InputLayout &inputLayout, + const std::vector<sh::Attribute> &shaderAttributes) const { - std::string varyingSemantic = getVaryingSemantic(shader->mUsesPointSize); - std::string varyingHLSL; - - const std::vector<gl::PackedVarying> &varyings = shader->getVaryings(); + std::stringstream structStream; + std::stringstream initStream; - for (unsigned int varyingIndex = 0; varyingIndex < varyings.size(); varyingIndex++) - { - const PackedVarying &varying = varyings[varyingIndex]; - if (varying.registerAssigned()) - { - ASSERT(!varying.isBuiltIn()); - GLenum transposedType = TransposeMatrixType(varying.type); - int variableRows = (varying.isStruct() ? 1 : VariableRowCount(transposedType)); - - for (unsigned int elementIndex = 0; elementIndex < varying.elementCount(); elementIndex++) - { - for (int row = 0; row < variableRows; row++) - { - // TODO: Add checks to ensure D3D interpolation modifiers don't result in too many registers being used. - // For example, if there are N registers, and we have N vec3 varyings and 1 float varying, then D3D will pack them into N registers. - // If the float varying has the 'nointerpolation' modifier on it then we would need N + 1 registers, and D3D compilation will fail. - - switch (varying.interpolation) - { - case sh::INTERPOLATION_SMOOTH: varyingHLSL += " "; break; - case sh::INTERPOLATION_FLAT: varyingHLSL += " nointerpolation "; break; - case sh::INTERPOLATION_CENTROID: varyingHLSL += " centroid "; break; - default: UNREACHABLE(); - } - - unsigned int semanticIndex = elementIndex * variableRows + - varying.columnIndex * mRenderer->getRendererCaps().maxVaryingVectors + - varying.registerIndex + row; - std::string n = Str(semanticIndex); - - std::string typeString; - - if (varying.isStruct()) - { - // TODO(jmadill): pass back translated name from the shader translator - typeString = decorateVariable(varying.structName); - } - else - { - GLenum componentType = VariableComponentType(transposedType); - int columnCount = VariableColumnCount(transposedType); - typeString = HLSLComponentTypeString(componentType, columnCount); - } - varyingHLSL += typeString + " v" + n + " : " + varyingSemantic + n + ";\n"; - } - } - } - } - - return varyingHLSL; -} + structStream << "struct VS_INPUT\n" + << "{\n"; -std::string DynamicHLSL::generateVertexShaderForInputLayout(const std::string &sourceShader, - const VertexFormat inputLayout[], - const sh::Attribute shaderAttributes[]) const -{ - std::string structHLSL, initHLSL; - - int semanticIndex = 0; + int semanticIndex = 0; unsigned int inputIndex = 0; // If gl_PointSize is used in the shader then pointsprites rendering is expected. // If the renderer does not support Geometry shaders then Instanced PointSprite emulation // must be used. bool usesPointSize = sourceShader.find("GL_USES_POINT_SIZE") != std::string::npos; - bool useInstancedPointSpriteEmulation = usesPointSize && mRenderer->getWorkarounds().useInstancedPointSpriteEmulation; + bool useInstancedPointSpriteEmulation = + usesPointSize && mRenderer->getWorkarounds().useInstancedPointSpriteEmulation; // Instanced PointSprite emulation requires additional entries in the // VS_INPUT structure to support the vertices that make up the quad vertices. @@ -402,102 +207,109 @@ std::string DynamicHLSL::generateVertexShaderForInputLayout(const std::string &s // before per instance data in the shader. if (useInstancedPointSpriteEmulation) { - structHLSL += " float3 spriteVertexPos : SPRITEPOSITION0;\n"; - structHLSL += " float2 spriteTexCoord : SPRITETEXCOORD0;\n"; + structStream << " float3 spriteVertexPos : SPRITEPOSITION0;\n" + << " float2 spriteTexCoord : SPRITETEXCOORD0;\n"; } - for (unsigned int attributeIndex = 0; attributeIndex < MAX_VERTEX_ATTRIBS; attributeIndex++) + for (size_t attributeIndex = 0; attributeIndex < shaderAttributes.size(); ++attributeIndex) { const sh::Attribute &shaderAttribute = shaderAttributes[attributeIndex]; if (!shaderAttribute.name.empty()) { ASSERT(inputIndex < MAX_VERTEX_ATTRIBS); - const VertexFormat &vertexFormat = inputLayout[inputIndex]; + VertexFormatType vertexFormatType = + inputIndex < inputLayout.size() ? inputLayout[inputIndex] : VERTEX_FORMAT_INVALID; // HLSL code for input structure if (IsMatrixType(shaderAttribute.type)) { // Matrix types are always transposed - structHLSL += " " + HLSLMatrixTypeString(TransposeMatrixType(shaderAttribute.type)); + structStream << " " + << HLSLMatrixTypeString(TransposeMatrixType(shaderAttribute.type)); } else { - GLenum componentType = mRenderer->getVertexComponentType(vertexFormat); + GLenum componentType = mRenderer->getVertexComponentType(vertexFormatType); if (shaderAttribute.name == "gl_InstanceID") { - // The input type of the instance ID in HLSL (uint) differs from the one in ESSL (int). - structHLSL += " uint"; + // The input type of the instance ID in HLSL (uint) differs from the one in ESSL + // (int). + structStream << " uint"; } else { - structHLSL += " " + HLSLComponentTypeString(componentType, VariableComponentCount(shaderAttribute.type)); + structStream << " " << HLSLComponentTypeString( + componentType, + VariableComponentCount(shaderAttribute.type)); } } - structHLSL += " " + decorateVariable(shaderAttribute.name) + " : "; + structStream << " " << decorateVariable(shaderAttribute.name) << " : "; if (shaderAttribute.name == "gl_InstanceID") { - structHLSL += "SV_InstanceID"; + structStream << "SV_InstanceID"; } else { - structHLSL += "TEXCOORD" + Str(semanticIndex); + structStream << "TEXCOORD" << semanticIndex; semanticIndex += VariableRegisterCount(shaderAttribute.type); } - structHLSL += ";\n"; + structStream << ";\n"; // HLSL code for initialization - initHLSL += " " + decorateVariable(shaderAttribute.name) + " = "; + initStream << " " << decorateVariable(shaderAttribute.name) << " = "; // Mismatched vertex attribute to vertex input may result in an undefined // data reinterpretation (eg for pure integer->float, float->pure integer) // TODO: issue warning with gl debug info extension, when supported if (IsMatrixType(shaderAttribute.type) || - (mRenderer->getVertexConversionType(vertexFormat) & VERTEX_CONVERT_GPU) != 0) + (mRenderer->getVertexConversionType(vertexFormatType) & VERTEX_CONVERT_GPU) != 0) { - initHLSL += generateAttributeConversionHLSL(vertexFormat, shaderAttribute); + initStream << generateAttributeConversionHLSL(vertexFormatType, shaderAttribute); } else { - initHLSL += "input." + decorateVariable(shaderAttribute.name); + initStream << "input." << decorateVariable(shaderAttribute.name); } - initHLSL += ";\n"; + initStream << ";\n"; inputIndex += VariableRowCount(TransposeMatrixType(shaderAttribute.type)); } } - std::string replacementHLSL = "struct VS_INPUT\n" - "{\n" + - structHLSL + - "};\n" - "\n" - "void initAttributes(VS_INPUT input)\n" - "{\n" + - initHLSL + - "}\n"; + structStream << "};\n" + "\n" + "void initAttributes(VS_INPUT input)\n" + "{\n" + << initStream.str() << "}\n"; std::string vertexHLSL(sourceShader); size_t copyInsertionPos = vertexHLSL.find(VERTEX_ATTRIBUTE_STUB_STRING); - vertexHLSL.replace(copyInsertionPos, VERTEX_ATTRIBUTE_STUB_STRING.length(), replacementHLSL); + vertexHLSL.replace(copyInsertionPos, VERTEX_ATTRIBUTE_STUB_STRING.length(), structStream.str()); return vertexHLSL; } -std::string DynamicHLSL::generatePixelShaderForOutputSignature(const std::string &sourceShader, const std::vector<PixelShaderOutputVariable> &outputVariables, - bool usesFragDepth, const std::vector<GLenum> &outputLayout) const +std::string DynamicHLSL::generatePixelShaderForOutputSignature( + const std::string &sourceShader, + const std::vector<PixelShaderOutputVariable> &outputVariables, + bool usesFragDepth, + const std::vector<GLenum> &outputLayout) const { - const int shaderModel = mRenderer->getMajorShaderModel(); + const int shaderModel = mRenderer->getMajorShaderModel(); std::string targetSemantic = (shaderModel >= 4) ? "SV_TARGET" : "COLOR"; - std::string depthSemantic = (shaderModel >= 4) ? "SV_Depth" : "DEPTH"; + std::string depthSemantic = (shaderModel >= 4) ? "SV_Depth" : "DEPTH"; + + std::stringstream declarationStream; + std::stringstream copyStream; - std::string declarationHLSL; - std::string copyHLSL; + declarationStream << "struct PS_OUTPUT\n" + "{\n"; for (size_t layoutIndex = 0; layoutIndex < outputLayout.size(); ++layoutIndex) { @@ -507,703 +319,680 @@ std::string DynamicHLSL::generatePixelShaderForOutputSignature(const std::string { unsigned int location = (binding - GL_COLOR_ATTACHMENT0); - const PixelShaderOutputVariable *outputVariable = FindOutputAtLocation(outputVariables, location); + const PixelShaderOutputVariable *outputVariable = + FindOutputAtLocation(outputVariables, location); // OpenGL ES 3.0 spec $4.2.1 - // If [...] not all user-defined output variables are written, the values of fragment colors + // If [...] not all user-defined output variables are written, the values of fragment + // colors // corresponding to unwritten variables are similarly undefined. if (outputVariable) { - declarationHLSL += " " + HLSLTypeString(outputVariable->type) + " " + outputVariable->name + - " : " + targetSemantic + Str(layoutIndex) + ";\n"; + declarationStream << " " + HLSLTypeString(outputVariable->type) << " " + << outputVariable->name << " : " << targetSemantic + << static_cast<int>(layoutIndex) << ";\n"; - copyHLSL += " output." + outputVariable->name + " = " + outputVariable->source + ";\n"; + copyStream << " output." << outputVariable->name << " = " + << outputVariable->source << ";\n"; } } } if (usesFragDepth) { - declarationHLSL += " float gl_Depth : " + depthSemantic + ";\n"; - copyHLSL += " output.gl_Depth = gl_Depth; \n"; + declarationStream << " float gl_Depth : " << depthSemantic << ";\n"; + copyStream << " output.gl_Depth = gl_Depth; \n"; } - std::string replacementHLSL = "struct PS_OUTPUT\n" - "{\n" + - declarationHLSL + - "};\n" - "\n" - "PS_OUTPUT generateOutput()\n" - "{\n" - " PS_OUTPUT output;\n" + - copyHLSL + - " return output;\n" - "}\n"; + declarationStream << "};\n" + "\n" + "PS_OUTPUT generateOutput()\n" + "{\n" + " PS_OUTPUT output;\n" + << copyStream.str() << " return output;\n" + "}\n"; std::string pixelHLSL(sourceShader); size_t outputInsertionPos = pixelHLSL.find(PIXEL_OUTPUT_STUB_STRING); - pixelHLSL.replace(outputInsertionPos, PIXEL_OUTPUT_STUB_STRING.length(), replacementHLSL); + pixelHLSL.replace(outputInsertionPos, PIXEL_OUTPUT_STUB_STRING.length(), + declarationStream.str()); return pixelHLSL; } -std::string DynamicHLSL::getVaryingSemantic(bool pointSize) const -{ - // SM3 reserves the TEXCOORD semantic for point sprite texcoords (gl_PointCoord) - // In D3D11 we manually compute gl_PointCoord in the GS. - int shaderModel = mRenderer->getMajorShaderModel(); - return ((pointSize && shaderModel < 4) ? "COLOR" : "TEXCOORD"); -} - -struct DynamicHLSL::SemanticInfo -{ - struct BuiltinInfo - { - BuiltinInfo() - : enabled(false), - index(0), - systemValue(false) - {} - - bool enabled; - std::string semantic; - unsigned int index; - bool systemValue; - - std::string str() const - { - return (systemValue ? semantic : (semantic + Str(index))); - } - - void enableSystem(const std::string &systemValueSemantic) - { - enabled = true; - semantic = systemValueSemantic; - systemValue = true; - } - - void enable(const std::string &semanticVal, unsigned int indexVal) - { - enabled = true; - semantic = semanticVal; - index = indexVal; - } - }; - - BuiltinInfo dxPosition; - BuiltinInfo glPosition; - BuiltinInfo glFragCoord; - BuiltinInfo glPointCoord; - BuiltinInfo glPointSize; -}; - -DynamicHLSL::SemanticInfo DynamicHLSL::getSemanticInfo(int startRegisters, bool position, bool fragCoord, - bool pointCoord, bool pointSize, bool pixelShader) const +void DynamicHLSL::generateVaryingLinkHLSL(ShaderType shaderType, + const VaryingPacking &varyingPacking, + std::stringstream &linkStream) const { - SemanticInfo info; - bool hlsl4 = (mRenderer->getMajorShaderModel() >= 4); - const std::string &varyingSemantic = getVaryingSemantic(pointSize); - - int reservedRegisterIndex = startRegisters; + const auto &builtins = varyingPacking.builtins(shaderType); + ASSERT(builtins.dxPosition.enabled); + linkStream << "{\n" + << " float4 dx_Position : " << builtins.dxPosition.str() << ";\n"; - if (hlsl4) + if (builtins.glPosition.enabled) { - info.dxPosition.enableSystem("SV_Position"); - } - else if (pixelShader) - { - info.dxPosition.enableSystem("VPOS"); - } - else - { - info.dxPosition.enableSystem("POSITION"); - } - - if (position) - { - info.glPosition.enable(varyingSemantic, reservedRegisterIndex++); - } - - if (fragCoord) - { - info.glFragCoord.enable(varyingSemantic, reservedRegisterIndex++); - } - - if (pointCoord) - { - // SM3 reserves the TEXCOORD semantic for point sprite texcoords (gl_PointCoord) - // In D3D11 we manually compute gl_PointCoord in the GS. - if (hlsl4) - { - info.glPointCoord.enable(varyingSemantic, reservedRegisterIndex++); - } - else - { - info.glPointCoord.enable("TEXCOORD", 0); - } - } - - // Special case: do not include PSIZE semantic in HLSL 3 pixel shaders - if (pointSize && (!pixelShader || hlsl4)) - { - info.glPointSize.enableSystem("PSIZE"); + linkStream << " float4 gl_Position : " << builtins.glPosition.str() << ";\n"; } - return info; -} - -std::string DynamicHLSL::generateVaryingLinkHLSL(const SemanticInfo &info, const std::string &varyingHLSL) const -{ - std::string linkHLSL = "{\n"; - - ASSERT(info.dxPosition.enabled); - linkHLSL += " float4 dx_Position : " + info.dxPosition.str() + ";\n"; - - if (info.glPosition.enabled) - { - linkHLSL += " float4 gl_Position : " + info.glPosition.str() + ";\n"; - } - - if (info.glFragCoord.enabled) - { - linkHLSL += " float4 gl_FragCoord : " + info.glFragCoord.str() + ";\n"; - } - - if (info.glPointCoord.enabled) - { - linkHLSL += " float2 gl_PointCoord : " + info.glPointCoord.str() + ";\n"; - } - - if (info.glPointSize.enabled) - { - linkHLSL += " float gl_PointSize : " + info.glPointSize.str() + ";\n"; - } - - // Do this after glPointSize, to potentially combine gl_PointCoord and gl_PointSize into the same register. - linkHLSL += varyingHLSL; - - linkHLSL += "};\n"; - - return linkHLSL; -} - -void DynamicHLSL::storeBuiltinLinkedVaryings(const SemanticInfo &info, - std::vector<LinkedVarying> *linkedVaryings) const -{ - if (info.glPosition.enabled) + if (builtins.glFragCoord.enabled) { - linkedVaryings->push_back(LinkedVarying("gl_Position", GL_FLOAT_VEC4, 1, info.glPosition.semantic, - info.glPosition.index, 1)); + linkStream << " float4 gl_FragCoord : " << builtins.glFragCoord.str() << ";\n"; } - if (info.glFragCoord.enabled) + if (builtins.glPointCoord.enabled) { - linkedVaryings->push_back(LinkedVarying("gl_FragCoord", GL_FLOAT_VEC4, 1, info.glFragCoord.semantic, - info.glFragCoord.index, 1)); + linkStream << " float2 gl_PointCoord : " << builtins.glPointCoord.str() << ";\n"; } - if (info.glPointSize.enabled) + if (builtins.glPointSize.enabled) { - linkedVaryings->push_back(LinkedVarying("gl_PointSize", GL_FLOAT, 1, "PSIZE", 0, 1)); + linkStream << " float gl_PointSize : " << builtins.glPointSize.str() << ";\n"; } -} - -void DynamicHLSL::storeUserLinkedVaryings(const ShaderD3D *vertexShader, - std::vector<LinkedVarying> *linkedVaryings) const -{ - const std::string &varyingSemantic = getVaryingSemantic(vertexShader->mUsesPointSize); - const std::vector<PackedVarying> &varyings = vertexShader->getVaryings(); - for (unsigned int varyingIndex = 0; varyingIndex < varyings.size(); varyingIndex++) - { - const PackedVarying &varying = varyings[varyingIndex]; - - if (varying.registerAssigned()) - { - ASSERT(!varying.isBuiltIn()); - GLenum transposedType = TransposeMatrixType(varying.type); - int variableRows = (varying.isStruct() ? 1 : VariableRowCount(transposedType)); + // Do this after glPointSize, to potentially combine gl_PointCoord and gl_PointSize into the + // same register. + generateVaryingHLSL(varyingPacking, linkStream); - linkedVaryings->push_back(LinkedVarying(varying.name, varying.type, varying.elementCount(), - varyingSemantic, varying.registerIndex, - variableRows * varying.elementCount())); - } - } + linkStream << "};\n"; } -bool DynamicHLSL::generateShaderLinkHLSL(const gl::Data &data, InfoLog &infoLog, int registers, - const VaryingPacking packing, - std::string &pixelHLSL, std::string &vertexHLSL, - ShaderD3D *fragmentShader, ShaderD3D *vertexShader, - const std::vector<std::string> &transformFeedbackVaryings, - std::vector<LinkedVarying> *linkedVaryings, - std::map<int, VariableLocation> *programOutputVars, - std::vector<PixelShaderOutputVariable> *outPixelShaderKey, - bool *outUsesFragDepth) const +bool DynamicHLSL::generateShaderLinkHLSL(const gl::Data &data, + const gl::Program::Data &programData, + const ProgramD3DMetadata &programMetadata, + const VaryingPacking &varyingPacking, + std::string *pixelHLSL, + std::string *vertexHLSL) const { - if (pixelHLSL.empty() || vertexHLSL.empty()) - { - return false; - } + ASSERT(pixelHLSL->empty() && vertexHLSL->empty()); - bool usesMRT = fragmentShader->mUsesMultipleRenderTargets; - bool usesFragColor = fragmentShader->mUsesFragColor; - bool usesFragData = fragmentShader->mUsesFragData; - bool usesFragCoord = fragmentShader->mUsesFragCoord; - bool usesPointCoord = fragmentShader->mUsesPointCoord; - bool usesPointSize = vertexShader->mUsesPointSize; - bool useInstancedPointSpriteEmulation = usesPointSize && mRenderer->getWorkarounds().useInstancedPointSpriteEmulation; + const gl::Shader *vertexShaderGL = programData.getAttachedVertexShader(); + const ShaderD3D *vertexShader = GetImplAs<ShaderD3D>(vertexShaderGL); + const gl::Shader *fragmentShaderGL = programData.getAttachedFragmentShader(); + const ShaderD3D *fragmentShader = GetImplAs<ShaderD3D>(fragmentShaderGL); + const int shaderModel = mRenderer->getMajorShaderModel(); - if (usesFragColor && usesFragData) - { - infoLog.append("Cannot use both gl_FragColor and gl_FragData in the same fragment shader."); - return false; - } - - // Write the HLSL input/output declarations - const int shaderModel = mRenderer->getMajorShaderModel(); - const int registersNeeded = registers + (usesFragCoord ? 1 : 0) + (usesPointCoord ? 1 : 0); - - // Two cases when writing to gl_FragColor and using ESSL 1.0: - // - with a 3.0 context, the output color is copied to channel 0 - // - with a 2.0 context, the output color is broadcast to all channels - const bool broadcast = (fragmentShader->mUsesFragColor && data.clientVersion < 3); - const unsigned int numRenderTargets = (broadcast || usesMRT ? data.caps->maxDrawBuffers : 1); - - // gl_Position only needs to be outputted from the vertex shader if transform feedback is active. - // This isn't supported on D3D11 Feature Level 9_3, so we don't output gl_Position from the vertex shader in this case. - // This saves us 1 output vector. - bool outputPositionFromVS = !(shaderModel >= 4 && mRenderer->getShaderModelSuffix() != ""); - - int shaderVersion = vertexShader->getShaderVersion(); - - if (static_cast<GLuint>(registersNeeded) > data.caps->maxVaryingVectors) - { - infoLog.append("No varying registers left to support gl_FragCoord/gl_PointCoord"); - return false; - } + // usesViewScale() isn't supported in the D3D9 renderer + ASSERT(shaderModel >= 4 || !programMetadata.usesViewScale()); - const std::string &varyingHLSL = generateVaryingHLSL(vertexShader); + bool useInstancedPointSpriteEmulation = + programMetadata.usesPointSize() && + mRenderer->getWorkarounds().useInstancedPointSpriteEmulation; - // Instanced PointSprite emulation requires that gl_PointCoord is present in the vertex shader VS_OUTPUT - // structure to ensure compatibility with the generated PS_INPUT of the pixel shader. - // GeometryShader PointSprite emulation does not require this additional entry because the - // GS_OUTPUT of the Geometry shader contains the pointCoord value and already matches the PS_INPUT of the - // generated pixel shader. - // The Geometry Shader point sprite implementation needs gl_PointSize to be in VS_OUTPUT and GS_INPUT. - // Instanced point sprites doesn't need gl_PointSize in VS_OUTPUT. - const SemanticInfo &vertexSemantics = getSemanticInfo(registers, outputPositionFromVS, - usesFragCoord, (useInstancedPointSpriteEmulation && usesPointCoord), - (!useInstancedPointSpriteEmulation && usesPointSize), false); + // Validation done in the compiler + ASSERT(!fragmentShader->usesFragColor() || !fragmentShader->usesFragData()); - storeUserLinkedVaryings(vertexShader, linkedVaryings); - storeBuiltinLinkedVaryings(vertexSemantics, linkedVaryings); + std::stringstream vertexStream; + vertexStream << vertexShaderGL->getTranslatedSource(); // Instanced PointSprite emulation requires additional entries originally generated in the - // GeometryShader HLSL. These include pointsize clamp values. + // GeometryShader HLSL. These include pointsize clamp values. if (useInstancedPointSpriteEmulation) { - vertexHLSL += "static float minPointSize = " + Str((int)mRenderer->getRendererCaps().minAliasedPointSize) + ".0f;\n" - "static float maxPointSize = " + Str((int)mRenderer->getRendererCaps().maxAliasedPointSize) + ".0f;\n"; + vertexStream << "static float minPointSize = " + << static_cast<int>(data.caps->minAliasedPointSize) << ".0f;\n" + << "static float maxPointSize = " + << static_cast<int>(data.caps->maxAliasedPointSize) << ".0f;\n"; } // Add stub string to be replaced when shader is dynamically defined by its layout - vertexHLSL += "\n" + VERTEX_ATTRIBUTE_STUB_STRING + "\n" - "struct VS_OUTPUT\n" + generateVaryingLinkHLSL(vertexSemantics, varyingHLSL) + "\n" - "VS_OUTPUT main(VS_INPUT input)\n" - "{\n" - " initAttributes(input);\n"; + vertexStream << "\n" << VERTEX_ATTRIBUTE_STUB_STRING + "\n"; + + // Write the HLSL input/output declarations + vertexStream << "struct VS_OUTPUT\n"; + generateVaryingLinkHLSL(SHADER_VERTEX, varyingPacking, vertexStream); + vertexStream << "\n" + << "VS_OUTPUT main(VS_INPUT input)\n" + << "{\n" + << " initAttributes(input);\n"; if (vertexShader->usesDeferredInit()) { - vertexHLSL += "\n" - " initializeDeferredGlobals();\n"; + vertexStream << "\n" + << " initializeDeferredGlobals();\n"; } - vertexHLSL += "\n" - " gl_main();\n" - "\n" - " VS_OUTPUT output;\n"; + vertexStream << "\n" + << " gl_main();\n" + << "\n" + << " VS_OUTPUT output;\n"; + + const auto &vertexBuiltins = varyingPacking.builtins(SHADER_VERTEX); - if (outputPositionFromVS) + if (vertexBuiltins.glPosition.enabled) { - vertexHLSL += " output.gl_Position = gl_Position;\n"; + vertexStream << " output.gl_Position = gl_Position;\n"; } // On D3D9 or D3D11 Feature Level 9, we need to emulate large viewports using dx_ViewAdjust. - if (shaderModel >= 4 && mRenderer->getShaderModelSuffix() == "") + if (shaderModel >= 4 && mRenderer->getShaderModelSuffix() == "") { - vertexHLSL += " output.dx_Position.x = gl_Position.x;\n" - " output.dx_Position.y = -gl_Position.y;\n" - " output.dx_Position.z = (gl_Position.z + gl_Position.w) * 0.5;\n" - " output.dx_Position.w = gl_Position.w;\n"; + vertexStream << " output.dx_Position.x = gl_Position.x;\n"; + + if (programMetadata.usesViewScale()) + { + // This code assumes that dx_ViewScale.y = -1.0f when rendering to texture, and +1.0f + // when rendering to the default framebuffer. No other values are valid. + vertexStream << " output.dx_Position.y = dx_ViewScale.y * gl_Position.y;\n"; + } + else + { + vertexStream << " output.dx_Position.y = - gl_Position.y;\n"; + } + + vertexStream << " output.dx_Position.z = (gl_Position.z + gl_Position.w) * 0.5;\n" + << " output.dx_Position.w = gl_Position.w;\n"; } else { - vertexHLSL += " output.dx_Position.x = gl_Position.x * dx_ViewAdjust.z + dx_ViewAdjust.x * gl_Position.w;\n" - " output.dx_Position.y = -(gl_Position.y * dx_ViewAdjust.w + dx_ViewAdjust.y * gl_Position.w);\n" - " output.dx_Position.z = (gl_Position.z + gl_Position.w) * 0.5;\n" - " output.dx_Position.w = gl_Position.w;\n"; + vertexStream << " output.dx_Position.x = gl_Position.x * dx_ViewAdjust.z + " + "dx_ViewAdjust.x * gl_Position.w;\n"; + + // If usesViewScale() is true and we're using the D3D11 renderer via Feature Level 9_*, + // then we need to multiply the gl_Position.y by the viewScale. + // usesViewScale() isn't supported when using the D3D9 renderer. + if (programMetadata.usesViewScale() && + (shaderModel >= 4 && mRenderer->getShaderModelSuffix() != "")) + { + vertexStream << " output.dx_Position.y = dx_ViewScale.y * (gl_Position.y * " + "dx_ViewAdjust.w + dx_ViewAdjust.y * gl_Position.w);\n"; + } + else + { + vertexStream << " output.dx_Position.y = -(gl_Position.y * dx_ViewAdjust.w + " + "dx_ViewAdjust.y * gl_Position.w);\n"; + } + + vertexStream << " output.dx_Position.z = (gl_Position.z + gl_Position.w) * 0.5;\n" + << " output.dx_Position.w = gl_Position.w;\n"; } // We don't need to output gl_PointSize if we use are emulating point sprites via instancing. - if (usesPointSize && shaderModel >= 3 && !useInstancedPointSpriteEmulation) + if (vertexBuiltins.glPointSize.enabled) { - vertexHLSL += " output.gl_PointSize = gl_PointSize;\n"; + vertexStream << " output.gl_PointSize = gl_PointSize;\n"; } - if (usesFragCoord) + if (vertexBuiltins.glFragCoord.enabled) { - vertexHLSL += " output.gl_FragCoord = gl_Position;\n"; + vertexStream << " output.gl_FragCoord = gl_Position;\n"; } - const std::vector<PackedVarying> &vertexVaryings = vertexShader->getVaryings(); - for (unsigned int vertVaryingIndex = 0; vertVaryingIndex < vertexVaryings.size(); vertVaryingIndex++) + for (const PackedVaryingRegister ®isterInfo : varyingPacking.getRegisterList()) { - const PackedVarying &varying = vertexVaryings[vertVaryingIndex]; - if (varying.registerAssigned()) - { - for (unsigned int elementIndex = 0; elementIndex < varying.elementCount(); elementIndex++) - { - int variableRows = (varying.isStruct() ? 1 : VariableRowCount(TransposeMatrixType(varying.type))); + const auto &packedVarying = *registerInfo.packedVarying; + const auto &varying = *packedVarying.varying; + ASSERT(!varying.isStruct()); - for (int row = 0; row < variableRows; row++) - { - int r = varying.registerIndex + varying.columnIndex * data.caps->maxVaryingVectors + elementIndex * variableRows + row; - vertexHLSL += " output.v" + Str(r); + vertexStream << " output.v" << registerInfo.semanticIndex << " = "; - vertexHLSL += " = _" + varying.name; + if (packedVarying.isStructField()) + { + vertexStream << decorateVariable(packedVarying.parentStructName) << "."; + } - if (varying.isArray()) - { - vertexHLSL += ArrayString(elementIndex); - } + vertexStream << decorateVariable(varying.name); - if (variableRows > 1) - { - vertexHLSL += ArrayString(row); - } + if (varying.isArray()) + { + WriteArrayString(vertexStream, registerInfo.varyingArrayIndex); + } - vertexHLSL += ";\n"; - } - } + if (VariableRowCount(varying.type) > 1) + { + WriteArrayString(vertexStream, registerInfo.varyingRowIndex); } + + vertexStream << ";\n"; } // Instanced PointSprite emulation requires additional entries to calculate // the final output vertex positions of the quad that represents each sprite. if (useInstancedPointSpriteEmulation) { - vertexHLSL += "\n" - " gl_PointSize = clamp(gl_PointSize, minPointSize, maxPointSize);\n" - " output.dx_Position.xyz += float3(input.spriteVertexPos.x * gl_PointSize / (dx_ViewCoords.x*2), input.spriteVertexPos.y * gl_PointSize / (dx_ViewCoords.y*2), input.spriteVertexPos.z) * output.dx_Position.w;\n"; + vertexStream << "\n" + << " gl_PointSize = clamp(gl_PointSize, minPointSize, maxPointSize);\n"; + + vertexStream << " output.dx_Position.x += (input.spriteVertexPos.x * gl_PointSize / " + "(dx_ViewCoords.x*2)) * output.dx_Position.w;"; - if (usesPointCoord) + if (programMetadata.usesViewScale()) { - vertexHLSL += "\n" - " output.gl_PointCoord = input.spriteTexCoord;\n"; + // Multiply by ViewScale to invert the rendering when appropriate + vertexStream << " output.dx_Position.y += (-dx_ViewScale.y * " + "input.spriteVertexPos.y * gl_PointSize / (dx_ViewCoords.y*2)) * " + "output.dx_Position.w;"; } - } - - vertexHLSL += "\n" - " return output;\n" - "}\n"; - - const SemanticInfo &pixelSemantics = getSemanticInfo(registers, outputPositionFromVS, usesFragCoord, usesPointCoord, - (!useInstancedPointSpriteEmulation && usesPointSize), true); - - pixelHLSL += "struct PS_INPUT\n" + generateVaryingLinkHLSL(pixelSemantics, varyingHLSL) + "\n"; - - if (shaderVersion < 300) - { - for (unsigned int renderTargetIndex = 0; renderTargetIndex < numRenderTargets; renderTargetIndex++) + else { - PixelShaderOutputVariable outputKeyVariable; - outputKeyVariable.type = GL_FLOAT_VEC4; - outputKeyVariable.name = "gl_Color" + Str(renderTargetIndex); - outputKeyVariable.source = broadcast ? "gl_Color[0]" : "gl_Color[" + Str(renderTargetIndex) + "]"; - outputKeyVariable.outputIndex = renderTargetIndex; - - outPixelShaderKey->push_back(outputKeyVariable); + vertexStream << " output.dx_Position.y += (input.spriteVertexPos.y * gl_PointSize / " + "(dx_ViewCoords.y*2)) * output.dx_Position.w;"; } - *outUsesFragDepth = fragmentShader->mUsesFragDepth; - } - else - { - defineOutputVariables(fragmentShader, programOutputVars); + vertexStream + << " output.dx_Position.z += input.spriteVertexPos.z * output.dx_Position.w;\n"; - const std::vector<sh::Attribute> &shaderOutputVars = fragmentShader->getActiveOutputVariables(); - for (auto locationIt = programOutputVars->begin(); locationIt != programOutputVars->end(); locationIt++) + if (programMetadata.usesPointCoord()) { - const VariableLocation &outputLocation = locationIt->second; - const sh::ShaderVariable &outputVariable = shaderOutputVars[outputLocation.index]; - const std::string &variableName = "out_" + outputLocation.name; - const std::string &elementString = (outputLocation.element == GL_INVALID_INDEX ? "" : Str(outputLocation.element)); - - ASSERT(outputVariable.staticUse); - - PixelShaderOutputVariable outputKeyVariable; - outputKeyVariable.type = outputVariable.type; - outputKeyVariable.name = variableName + elementString; - outputKeyVariable.source = variableName + ArrayString(outputLocation.element); - outputKeyVariable.outputIndex = locationIt->first; - - outPixelShaderKey->push_back(outputKeyVariable); + vertexStream << "\n" + << " output.gl_PointCoord = input.spriteTexCoord;\n"; } + } - *outUsesFragDepth = false; + // Renderers that enable instanced pointsprite emulation require the vertex shader output member + // gl_PointCoord to be set to a default value if used without gl_PointSize. 0.5,0.5 is the same + // default value used in the generated pixel shader. + if (programMetadata.usesInsertedPointCoordValue()) + { + ASSERT(!useInstancedPointSpriteEmulation); + vertexStream << "\n" + << " output.gl_PointCoord = float2(0.5, 0.5);\n"; } - pixelHLSL += PIXEL_OUTPUT_STUB_STRING + "\n"; + vertexStream << "\n" + << " return output;\n" + << "}\n"; + + std::stringstream pixelStream; + pixelStream << fragmentShaderGL->getTranslatedSource(); + pixelStream << "struct PS_INPUT\n"; + generateVaryingLinkHLSL(SHADER_PIXEL, varyingPacking, pixelStream); + pixelStream << "\n"; + + pixelStream << PIXEL_OUTPUT_STUB_STRING + "\n"; - if (fragmentShader->mUsesFrontFacing) + if (fragmentShader->usesFrontFacing()) { if (shaderModel >= 4) { - pixelHLSL += "PS_OUTPUT main(PS_INPUT input, bool isFrontFace : SV_IsFrontFace)\n" - "{\n"; + pixelStream << "PS_OUTPUT main(PS_INPUT input, bool isFrontFace : SV_IsFrontFace)\n" + << "{\n"; } else { - pixelHLSL += "PS_OUTPUT main(PS_INPUT input, float vFace : VFACE)\n" - "{\n"; + pixelStream << "PS_OUTPUT main(PS_INPUT input, float vFace : VFACE)\n" + << "{\n"; } } else { - pixelHLSL += "PS_OUTPUT main(PS_INPUT input)\n" - "{\n"; + pixelStream << "PS_OUTPUT main(PS_INPUT input)\n" + << "{\n"; } - if (usesFragCoord) + const auto &pixelBuiltins = varyingPacking.builtins(SHADER_PIXEL); + + if (pixelBuiltins.glFragCoord.enabled) { - pixelHLSL += " float rhw = 1.0 / input.gl_FragCoord.w;\n"; + pixelStream << " float rhw = 1.0 / input.gl_FragCoord.w;\n"; // Certain Shader Models (4_0+ and 3_0) allow reading from dx_Position in the pixel shader. - // Other Shader Models (4_0_level_9_3 and 2_x) don't support this, so we emulate it using dx_ViewCoords. + // Other Shader Models (4_0_level_9_3 and 2_x) don't support this, so we emulate it using + // dx_ViewCoords. if (shaderModel >= 4 && mRenderer->getShaderModelSuffix() == "") { - pixelHLSL += " gl_FragCoord.x = input.dx_Position.x;\n" - " gl_FragCoord.y = input.dx_Position.y;\n"; + pixelStream << " gl_FragCoord.x = input.dx_Position.x;\n" + << " gl_FragCoord.y = input.dx_Position.y;\n"; } else if (shaderModel == 3) { - pixelHLSL += " gl_FragCoord.x = input.dx_Position.x + 0.5;\n" - " gl_FragCoord.y = input.dx_Position.y + 0.5;\n"; + pixelStream << " gl_FragCoord.x = input.dx_Position.x + 0.5;\n" + << " gl_FragCoord.y = input.dx_Position.y + 0.5;\n"; } else { - // dx_ViewCoords contains the viewport width/2, height/2, center.x and center.y. See Renderer::setViewport() - pixelHLSL += " gl_FragCoord.x = (input.gl_FragCoord.x * rhw) * dx_ViewCoords.x + dx_ViewCoords.z;\n" - " gl_FragCoord.y = (input.gl_FragCoord.y * rhw) * dx_ViewCoords.y + dx_ViewCoords.w;\n"; + // dx_ViewCoords contains the viewport width/2, height/2, center.x and center.y. See + // Renderer::setViewport() + pixelStream << " gl_FragCoord.x = (input.gl_FragCoord.x * rhw) * dx_ViewCoords.x + " + "dx_ViewCoords.z;\n" + << " gl_FragCoord.y = (input.gl_FragCoord.y * rhw) * dx_ViewCoords.y + " + "dx_ViewCoords.w;\n"; } - pixelHLSL += " gl_FragCoord.z = (input.gl_FragCoord.z * rhw) * dx_DepthFront.x + dx_DepthFront.y;\n" - " gl_FragCoord.w = rhw;\n"; + if (programMetadata.usesViewScale()) + { + // For Feature Level 9_3 and below, we need to correct gl_FragCoord.y to account + // for dx_ViewScale. On Feature Level 10_0+, gl_FragCoord.y is calculated above using + // dx_ViewCoords and is always correct irrespective of dx_ViewScale's value. + // NOTE: usesViewScale() can only be true on D3D11 (i.e. Shader Model 4.0+). + if (shaderModel >= 4 && mRenderer->getShaderModelSuffix() == "") + { + // Some assumptions: + // - dx_ViewScale.y = -1.0f when rendering to texture + // - dx_ViewScale.y = +1.0f when rendering to the default framebuffer + // - gl_FragCoord.y has been set correctly above. + // + // When rendering to the backbuffer, the code inverts gl_FragCoord's y coordinate. + // This involves subtracting the y coordinate from the height of the area being + // rendered to. + // + // First we calculate the height of the area being rendered to: + // render_area_height = (2.0f / (1.0f - input.gl_FragCoord.y * rhw)) * + // gl_FragCoord.y + // + // Note that when we're rendering to default FB, we want our output to be + // equivalent to: + // "gl_FragCoord.y = render_area_height - gl_FragCoord.y" + // + // When we're rendering to a texture, we want our output to be equivalent to: + // "gl_FragCoord.y = gl_FragCoord.y;" + // + // If we set scale_factor = ((1.0f + dx_ViewScale.y) / 2.0f), then notice that + // - When rendering to default FB: scale_factor = 1.0f + // - When rendering to texture: scale_factor = 0.0f + // + // Therefore, we can get our desired output by setting: + // "gl_FragCoord.y = scale_factor * render_area_height - dx_ViewScale.y * + // gl_FragCoord.y" + // + // Simplifying, this becomes: + pixelStream + << " gl_FragCoord.y = (1.0f + dx_ViewScale.y) * gl_FragCoord.y /" + "(1.0f - input.gl_FragCoord.y * rhw) - dx_ViewScale.y * gl_FragCoord.y;\n"; + } + } + + pixelStream << " gl_FragCoord.z = (input.gl_FragCoord.z * rhw) * dx_DepthFront.x + " + "dx_DepthFront.y;\n" + << " gl_FragCoord.w = rhw;\n"; } - if (usesPointCoord && shaderModel >= 3) + if (pixelBuiltins.glPointCoord.enabled && shaderModel >= 3) { - pixelHLSL += " gl_PointCoord.x = input.gl_PointCoord.x;\n"; - pixelHLSL += " gl_PointCoord.y = 1.0 - input.gl_PointCoord.y;\n"; + pixelStream << " gl_PointCoord.x = input.gl_PointCoord.x;\n" + << " gl_PointCoord.y = 1.0 - input.gl_PointCoord.y;\n"; } - if (fragmentShader->mUsesFrontFacing) + if (fragmentShader->usesFrontFacing()) { if (shaderModel <= 3) { - pixelHLSL += " gl_FrontFacing = (vFace * dx_DepthFront.z >= 0.0);\n"; + pixelStream << " gl_FrontFacing = (vFace * dx_DepthFront.z >= 0.0);\n"; } else { - pixelHLSL += " gl_FrontFacing = isFrontFace;\n"; + pixelStream << " gl_FrontFacing = isFrontFace;\n"; } } - const std::vector<PackedVarying> &fragmentVaryings = fragmentShader->getVaryings(); - for (unsigned int varyingIndex = 0; varyingIndex < fragmentVaryings.size(); varyingIndex++) + for (const PackedVaryingRegister ®isterInfo : varyingPacking.getRegisterList()) { - const PackedVarying &varying = fragmentVaryings[varyingIndex]; - if (varying.registerAssigned()) + const auto &packedVarying = *registerInfo.packedVarying; + const auto &varying = *packedVarying.varying; + ASSERT(!varying.isBuiltIn() && !varying.isStruct()); + + // Don't reference VS-only transform feedback varyings in the PS. + if (registerInfo.packedVarying->vertexOnly) + continue; + + pixelStream << " "; + + if (packedVarying.isStructField()) { - ASSERT(!varying.isBuiltIn()); - for (unsigned int elementIndex = 0; elementIndex < varying.elementCount(); elementIndex++) - { - GLenum transposedType = TransposeMatrixType(varying.type); - int variableRows = (varying.isStruct() ? 1 : VariableRowCount(transposedType)); - for (int row = 0; row < variableRows; row++) - { - std::string n = Str(varying.registerIndex + varying.columnIndex * data.caps->maxVaryingVectors + elementIndex * variableRows + row); - pixelHLSL += " _" + varying.name; - - if (varying.isArray()) - { - pixelHLSL += ArrayString(elementIndex); - } - - if (variableRows > 1) - { - pixelHLSL += ArrayString(row); - } - - if (varying.isStruct()) - { - pixelHLSL += " = input.v" + n + ";\n"; break; - } - else - { - switch (VariableColumnCount(transposedType)) - { - case 1: pixelHLSL += " = input.v" + n + ".x;\n"; break; - case 2: pixelHLSL += " = input.v" + n + ".xy;\n"; break; - case 3: pixelHLSL += " = input.v" + n + ".xyz;\n"; break; - case 4: pixelHLSL += " = input.v" + n + ";\n"; break; - default: UNREACHABLE(); - } - } - } - } + pixelStream << decorateVariable(packedVarying.parentStructName) << "."; } - else + + pixelStream << decorateVariable(varying.name); + + if (varying.isArray()) + { + WriteArrayString(pixelStream, registerInfo.varyingArrayIndex); + } + + GLenum transposedType = TransposeMatrixType(varying.type); + if (VariableRowCount(transposedType) > 1) { - ASSERT(varying.isBuiltIn() || !varying.staticUse); + WriteArrayString(pixelStream, registerInfo.varyingRowIndex); } + + pixelStream << " = input.v" << registerInfo.semanticIndex; + + switch (VariableColumnCount(transposedType)) + { + case 1: + pixelStream << ".x"; + break; + case 2: + pixelStream << ".xy"; + break; + case 3: + pixelStream << ".xyz"; + break; + case 4: + break; + default: + UNREACHABLE(); + } + pixelStream << ";\n"; } if (fragmentShader->usesDeferredInit()) { - pixelHLSL += "\n" - " initializeDeferredGlobals();\n"; + pixelStream << "\n" + << " initializeDeferredGlobals();\n"; } - pixelHLSL += "\n" - " gl_main();\n" - "\n" - " return generateOutput();\n" - "}\n"; + pixelStream << "\n" + << " gl_main();\n" + << "\n" + << " return generateOutput();\n" + << "}\n"; + + *vertexHLSL = vertexStream.str(); + *pixelHLSL = pixelStream.str(); return true; } -void DynamicHLSL::defineOutputVariables(ShaderD3D *fragmentShader, std::map<int, VariableLocation> *programOutputVars) const +std::string DynamicHLSL::generateGeometryShaderPreamble(const VaryingPacking &varyingPacking) const { - const std::vector<sh::Attribute> &shaderOutputVars = fragmentShader->getActiveOutputVariables(); + ASSERT(mRenderer->getMajorShaderModel() >= 4); - for (unsigned int outputVariableIndex = 0; outputVariableIndex < shaderOutputVars.size(); outputVariableIndex++) - { - const sh::Attribute &outputVariable = shaderOutputVars[outputVariableIndex]; - const int baseLocation = outputVariable.location == -1 ? 0 : outputVariable.location; + std::stringstream preambleStream; - ASSERT(outputVariable.staticUse); + const auto &builtins = varyingPacking.builtins(SHADER_VERTEX); - if (outputVariable.arraySize > 0) - { - for (unsigned int elementIndex = 0; elementIndex < outputVariable.arraySize; elementIndex++) - { - const int location = baseLocation + elementIndex; - ASSERT(programOutputVars->count(location) == 0); - (*programOutputVars)[location] = VariableLocation(outputVariable.name, elementIndex, outputVariableIndex); - } - } - else + preambleStream << "struct GS_INPUT\n"; + generateVaryingLinkHLSL(SHADER_VERTEX, varyingPacking, preambleStream); + preambleStream << "\n" + << "struct GS_OUTPUT\n"; + generateVaryingLinkHLSL(SHADER_GEOMETRY, varyingPacking, preambleStream); + preambleStream + << "\n" + << "void copyVertex(inout GS_OUTPUT output, GS_INPUT input, GS_INPUT flatinput)\n" + << "{\n" + << " output.gl_Position = input.gl_Position;\n"; + + if (builtins.glPointSize.enabled) + { + preambleStream << " output.gl_PointSize = input.gl_PointSize;\n"; + } + + for (const PackedVaryingRegister &varyingRegister : varyingPacking.getRegisterList()) + { + preambleStream << " output.v" << varyingRegister.semanticIndex << " = "; + if (varyingRegister.packedVarying->interpolation == sh::INTERPOLATION_FLAT) { - ASSERT(programOutputVars->count(baseLocation) == 0); - (*programOutputVars)[baseLocation] = VariableLocation(outputVariable.name, GL_INVALID_INDEX, outputVariableIndex); + preambleStream << "flat"; } + preambleStream << "input.v" << varyingRegister.semanticIndex << "; \n"; } -} -std::string DynamicHLSL::generateGeometryShaderHLSL(int registers, ShaderD3D *fragmentShader, ShaderD3D *vertexShader) const -{ - // for now we only handle point sprite emulation - ASSERT(vertexShader->mUsesPointSize && mRenderer->getMajorShaderModel() >= 4); - return generatePointSpriteHLSL(registers, fragmentShader, vertexShader); + if (builtins.glFragCoord.enabled) + { + preambleStream << " output.gl_FragCoord = input.gl_FragCoord;\n"; + } + + // Only write the dx_Position if we aren't using point sprites + preambleStream << "#ifndef ANGLE_POINT_SPRITE_SHADER\n" + << " output.dx_Position = input.dx_Position;\n" + << "#endif // ANGLE_POINT_SPRITE_SHADER\n" + << "}\n"; + + return preambleStream.str(); } -std::string DynamicHLSL::generatePointSpriteHLSL(int registers, ShaderD3D *fragmentShader, ShaderD3D *vertexShader) const +std::string DynamicHLSL::generateGeometryShaderHLSL(gl::PrimitiveType primitiveType, + const gl::Data &data, + const gl::Program::Data &programData, + const bool useViewScale, + const std::string &preambleString) const { - ASSERT(registers >= 0); - ASSERT(vertexShader->mUsesPointSize); ASSERT(mRenderer->getMajorShaderModel() >= 4); - std::string geomHLSL; - - const SemanticInfo &inSemantics = getSemanticInfo(registers, true, fragmentShader->mUsesFragCoord, - false, true, false); - const SemanticInfo &outSemantics = getSemanticInfo(registers, true, fragmentShader->mUsesFragCoord, - fragmentShader->mUsesPointCoord, true, false); - - std::string varyingHLSL = generateVaryingHLSL(vertexShader); - std::string inLinkHLSL = generateVaryingLinkHLSL(inSemantics, varyingHLSL); - std::string outLinkHLSL = generateVaryingLinkHLSL(outSemantics, varyingHLSL); - - // TODO(geofflang): use context's caps - geomHLSL += "uniform float4 dx_ViewCoords : register(c1);\n" - "\n" - "struct GS_INPUT\n" + inLinkHLSL + "\n" + - "struct GS_OUTPUT\n" + outLinkHLSL + "\n" + - "\n" - "static float2 pointSpriteCorners[] = \n" - "{\n" - " float2( 0.5f, -0.5f),\n" - " float2( 0.5f, 0.5f),\n" - " float2(-0.5f, -0.5f),\n" - " float2(-0.5f, 0.5f)\n" - "};\n" - "\n" - "static float2 pointSpriteTexcoords[] = \n" - "{\n" - " float2(1.0f, 1.0f),\n" - " float2(1.0f, 0.0f),\n" - " float2(0.0f, 1.0f),\n" - " float2(0.0f, 0.0f)\n" - "};\n" - "\n" - "static float minPointSize = " + Str(mRenderer->getRendererCaps().minAliasedPointSize) + ".0f;\n" - "static float maxPointSize = " + Str(mRenderer->getRendererCaps().maxAliasedPointSize) + ".0f;\n" - "\n" - "[maxvertexcount(4)]\n" - "void main(point GS_INPUT input[1], inout TriangleStream<GS_OUTPUT> outStream)\n" - "{\n" - " GS_OUTPUT output = (GS_OUTPUT)0;\n" - " output.gl_Position = input[0].gl_Position;\n" - " output.gl_PointSize = input[0].gl_PointSize;\n"; - - for (int r = 0; r < registers; r++) + std::stringstream shaderStream; + + const bool pointSprites = (primitiveType == PRIMITIVE_POINTS); + const bool usesPointCoord = preambleString.find("gl_PointCoord") != std::string::npos; + + const char *inputPT = nullptr; + const char *outputPT = nullptr; + int inputSize = 0; + int maxVertexOutput = 0; + + switch (primitiveType) { - geomHLSL += " output.v" + Str(r) + " = input[0].v" + Str(r) + ";\n"; + case PRIMITIVE_POINTS: + inputPT = "point"; + outputPT = "Triangle"; + inputSize = 1; + maxVertexOutput = 4; + break; + + case PRIMITIVE_LINES: + case PRIMITIVE_LINE_STRIP: + case PRIMITIVE_LINE_LOOP: + inputPT = "line"; + outputPT = "Line"; + inputSize = 2; + maxVertexOutput = 2; + break; + + case PRIMITIVE_TRIANGLES: + case PRIMITIVE_TRIANGLE_STRIP: + case PRIMITIVE_TRIANGLE_FAN: + inputPT = "triangle"; + outputPT = "Triangle"; + inputSize = 3; + maxVertexOutput = 3; + break; + + default: + UNREACHABLE(); + break; } - if (fragmentShader->mUsesFragCoord) + if (pointSprites) { - geomHLSL += " output.gl_FragCoord = input[0].gl_FragCoord;\n"; + shaderStream << "#define ANGLE_POINT_SPRITE_SHADER\n" + "\n" + "uniform float4 dx_ViewCoords : register(c1);\n"; + + if (useViewScale) + { + shaderStream << "uniform float2 dx_ViewScale : register(c3);\n"; + } + + shaderStream << "\n" + "static float2 pointSpriteCorners[] = \n" + "{\n" + " float2( 0.5f, -0.5f),\n" + " float2( 0.5f, 0.5f),\n" + " float2(-0.5f, -0.5f),\n" + " float2(-0.5f, 0.5f)\n" + "};\n" + "\n" + "static float2 pointSpriteTexcoords[] = \n" + "{\n" + " float2(1.0f, 1.0f),\n" + " float2(1.0f, 0.0f),\n" + " float2(0.0f, 1.0f),\n" + " float2(0.0f, 0.0f)\n" + "};\n" + "\n" + "static float minPointSize = " + << static_cast<int>(data.caps->minAliasedPointSize) + << ".0f;\n" + "static float maxPointSize = " + << static_cast<int>(data.caps->maxAliasedPointSize) << ".0f;\n" + << "\n"; } - geomHLSL += " \n" - " float gl_PointSize = clamp(input[0].gl_PointSize, minPointSize, maxPointSize);\n" - " float4 dx_Position = input[0].dx_Position;\n" - " float2 viewportScale = float2(1.0f / dx_ViewCoords.x, 1.0f / dx_ViewCoords.y) * dx_Position.w;\n"; + shaderStream << preambleString << "\n" + << "[maxvertexcount(" << maxVertexOutput << ")]\n" + << "void main(" << inputPT << " GS_INPUT input[" << inputSize << "], "; - for (int corner = 0; corner < 4; corner++) + if (primitiveType == PRIMITIVE_TRIANGLE_STRIP) { - geomHLSL += " \n" - " output.dx_Position = dx_Position + float4(pointSpriteCorners[" + Str(corner) + "] * viewportScale * gl_PointSize, 0.0f, 0.0f);\n"; + shaderStream << "uint primitiveID : SV_PrimitiveID, "; + } + + shaderStream << " inout " << outputPT << "Stream<GS_OUTPUT> outStream)\n" + << "{\n" + << " GS_OUTPUT output = (GS_OUTPUT)0;\n"; - if (fragmentShader->mUsesPointCoord) + if (primitiveType == PRIMITIVE_TRIANGLE_STRIP) + { + shaderStream << " uint lastVertexIndex = (primitiveID % 2 == 0 ? 2 : 1);\n"; + } + else + { + shaderStream << " uint lastVertexIndex = " << (inputSize - 1) << ";\n"; + } + + for (int vertexIndex = 0; vertexIndex < inputSize; ++vertexIndex) + { + shaderStream << " copyVertex(output, input[" << vertexIndex + << "], input[lastVertexIndex]);\n"; + + if (!pointSprites) { - geomHLSL += " output.gl_PointCoord = pointSpriteTexcoords[" + Str(corner) + "];\n"; + ASSERT(inputSize == maxVertexOutput); + shaderStream << " outStream.Append(output);\n"; } + } + + if (pointSprites) + { + shaderStream << "\n" + " float4 dx_Position = input[0].dx_Position;\n" + " float gl_PointSize = clamp(input[0].gl_PointSize, minPointSize, " + "maxPointSize);\n" + " float2 viewportScale = float2(1.0f / dx_ViewCoords.x, 1.0f / " + "dx_ViewCoords.y) * dx_Position.w;\n"; + + for (int corner = 0; corner < 4; corner++) + { + if (useViewScale) + { + shaderStream << " \n" + " output.dx_Position = dx_Position + float4(1.0f, " + "-dx_ViewScale.y, 1.0f, 1.0f)" + " * float4(pointSpriteCorners[" + << corner << "] * viewportScale * gl_PointSize, 0.0f, 0.0f);\n"; + } + else + { + shaderStream << "\n" + " output.dx_Position = dx_Position + float4(pointSpriteCorners[" + << corner << "] * viewportScale * gl_PointSize, 0.0f, 0.0f);\n"; + } - geomHLSL += " outStream.Append(output);\n"; + if (usesPointCoord) + { + shaderStream << " output.gl_PointCoord = pointSpriteTexcoords[" << corner + << "];\n"; + } + + shaderStream << " outStream.Append(output);\n"; + } } - geomHLSL += " \n" - " outStream.RestartStrip();\n" - "}\n"; + shaderStream << " \n" + " outStream.RestartStrip();\n" + "}\n"; - return geomHLSL; + return shaderStream.str(); } // This method needs to match OutputHLSL::decorate @@ -1217,9 +1006,12 @@ std::string DynamicHLSL::decorateVariable(const std::string &name) return name; } -std::string DynamicHLSL::generateAttributeConversionHLSL(const VertexFormat &vertexFormat, const sh::ShaderVariable &shaderAttrib) const +std::string DynamicHLSL::generateAttributeConversionHLSL( + gl::VertexFormatType vertexFormatType, + const sh::ShaderVariable &shaderAttrib) const { - std::string attribString = "input." + decorateVariable(shaderAttrib.name); + const gl::VertexFormat &vertexFormat = gl::GetVertexFormatFromType(vertexFormatType); + std::string attribString = "input." + decorateVariable(shaderAttrib.name); // Matrix if (IsMatrixType(shaderAttrib.type)) @@ -1228,15 +1020,16 @@ std::string DynamicHLSL::generateAttributeConversionHLSL(const VertexFormat &ver } GLenum shaderComponentType = VariableComponentType(shaderAttrib.type); - int shaderComponentCount = VariableComponentCount(shaderAttrib.type); + int shaderComponentCount = VariableComponentCount(shaderAttrib.type); // Perform integer to float conversion (if necessary) - bool requiresTypeConversion = (shaderComponentType == GL_FLOAT && vertexFormat.mType != GL_FLOAT); + bool requiresTypeConversion = + (shaderComponentType == GL_FLOAT && vertexFormat.type != GL_FLOAT); if (requiresTypeConversion) { // TODO: normalization for 32-bit integer formats - ASSERT(!vertexFormat.mNormalized && !vertexFormat.mPureInteger); + ASSERT(!vertexFormat.normalized && !vertexFormat.pureInteger); return "float" + Str(shaderComponentCount) + "(" + attribString + ")"; } @@ -1244,22 +1037,57 @@ std::string DynamicHLSL::generateAttributeConversionHLSL(const VertexFormat &ver return attribString; } -void DynamicHLSL::getInputLayoutSignature(const VertexFormat inputLayout[], GLenum signature[]) const +void DynamicHLSL::getPixelShaderOutputKey(const gl::Data &data, + const gl::Program::Data &programData, + const ProgramD3DMetadata &metadata, + std::vector<PixelShaderOutputVariable> *outPixelShaderKey) { - for (size_t inputIndex = 0; inputIndex < MAX_VERTEX_ATTRIBS; inputIndex++) - { - const VertexFormat &vertexFormat = inputLayout[inputIndex]; + // Two cases when writing to gl_FragColor and using ESSL 1.0: + // - with a 3.0 context, the output color is copied to channel 0 + // - with a 2.0 context, the output color is broadcast to all channels + bool broadcast = metadata.usesBroadcast(data); + const unsigned int numRenderTargets = + (broadcast || metadata.usesMultipleFragmentOuts() ? data.caps->maxDrawBuffers : 1); - if (vertexFormat.mType == GL_NONE) + if (metadata.getMajorShaderVersion() < 300) + { + for (unsigned int renderTargetIndex = 0; renderTargetIndex < numRenderTargets; + renderTargetIndex++) { - signature[inputIndex] = GL_NONE; + PixelShaderOutputVariable outputKeyVariable; + outputKeyVariable.type = GL_FLOAT_VEC4; + outputKeyVariable.name = "gl_Color" + Str(renderTargetIndex); + outputKeyVariable.source = + broadcast ? "gl_Color[0]" : "gl_Color[" + Str(renderTargetIndex) + "]"; + outputKeyVariable.outputIndex = renderTargetIndex; + + outPixelShaderKey->push_back(outputKeyVariable); } - else + } + else + { + const auto &shaderOutputVars = + metadata.getFragmentShader()->getData().getActiveOutputVariables(); + + for (auto outputPair : programData.getOutputVariables()) { - bool gpuConverted = ((mRenderer->getVertexConversionType(vertexFormat) & VERTEX_CONVERT_GPU) != 0); - signature[inputIndex] = (gpuConverted ? GL_TRUE : GL_FALSE); + const VariableLocation &outputLocation = outputPair.second; + const sh::ShaderVariable &outputVariable = shaderOutputVars[outputLocation.index]; + const std::string &variableName = "out_" + outputLocation.name; + const std::string &elementString = + (outputLocation.element == GL_INVALID_INDEX ? "" : Str(outputLocation.element)); + + ASSERT(outputVariable.staticUse); + + PixelShaderOutputVariable outputKeyVariable; + outputKeyVariable.type = outputVariable.type; + outputKeyVariable.name = variableName + elementString; + outputKeyVariable.source = variableName + ArrayString(outputLocation.element); + outputKeyVariable.outputIndex = outputPair.first; + + outPixelShaderKey->push_back(outputKeyVariable); } } } -} +} // namespace rx |