| // |
| // Copyright 2012 The ANGLE Project Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| // |
| |
| // InputLayoutCache.cpp: Defines InputLayoutCache, a class that builds and caches |
| // D3D11 input layouts. |
| |
| #include "libANGLE/renderer/d3d/d3d11/InputLayoutCache.h" |
| |
| #include "common/bitset_utils.h" |
| #include "common/utilities.h" |
| #include "libANGLE/Context.h" |
| #include "libANGLE/Program.h" |
| #include "libANGLE/VertexArray.h" |
| #include "libANGLE/VertexAttribute.h" |
| #include "libANGLE/renderer/d3d/IndexDataManager.h" |
| #include "libANGLE/renderer/d3d/ProgramD3D.h" |
| #include "libANGLE/renderer/d3d/VertexDataManager.h" |
| #include "libANGLE/renderer/d3d/d3d11/Context11.h" |
| #include "libANGLE/renderer/d3d/d3d11/Renderer11.h" |
| #include "libANGLE/renderer/d3d/d3d11/ShaderExecutable11.h" |
| #include "libANGLE/renderer/d3d/d3d11/VertexArray11.h" |
| #include "libANGLE/renderer/d3d/d3d11/formatutils11.h" |
| |
| namespace rx |
| { |
| |
| namespace |
| { |
| |
| GLenum GetGLSLAttributeType(const std::vector<sh::ShaderVariable> &shaderAttributes, size_t index) |
| { |
| // Count matrices differently |
| for (const sh::ShaderVariable &attrib : shaderAttributes) |
| { |
| if (attrib.location == -1) |
| { |
| continue; |
| } |
| |
| GLenum transposedType = gl::TransposeMatrixType(attrib.type); |
| int rows = gl::VariableRowCount(transposedType); |
| int intIndex = static_cast<int>(index); |
| |
| if (intIndex >= attrib.location && intIndex < attrib.location + rows) |
| { |
| return transposedType; |
| } |
| } |
| |
| UNREACHABLE(); |
| return GL_NONE; |
| } |
| |
| struct PackedAttribute |
| { |
| uint8_t attribType; |
| uint8_t semanticIndex; |
| uint8_t vertexFormatType; |
| uint8_t unusedPadding; |
| uint32_t divisor; |
| }; |
| |
| } // anonymous namespace |
| |
| PackedAttributeLayout::PackedAttributeLayout() : numAttributes(0), flags(0), attributeData({}) {} |
| |
| PackedAttributeLayout::PackedAttributeLayout(const PackedAttributeLayout &other) = default; |
| |
| void PackedAttributeLayout::addAttributeData(GLenum glType, |
| UINT semanticIndex, |
| angle::FormatID vertexFormatID, |
| unsigned int divisor) |
| { |
| gl::AttributeType attribType = gl::GetAttributeType(glType); |
| |
| PackedAttribute packedAttrib; |
| packedAttrib.attribType = static_cast<uint8_t>(attribType); |
| packedAttrib.semanticIndex = static_cast<uint8_t>(semanticIndex); |
| packedAttrib.vertexFormatType = static_cast<uint8_t>(vertexFormatID); |
| packedAttrib.unusedPadding = 0u; |
| packedAttrib.divisor = static_cast<uint32_t>(divisor); |
| |
| ASSERT(static_cast<gl::AttributeType>(packedAttrib.attribType) == attribType); |
| ASSERT(static_cast<UINT>(packedAttrib.semanticIndex) == semanticIndex); |
| ASSERT(static_cast<angle::FormatID>(packedAttrib.vertexFormatType) == vertexFormatID); |
| ASSERT(static_cast<unsigned int>(packedAttrib.divisor) == divisor); |
| |
| static_assert(sizeof(uint64_t) == sizeof(PackedAttribute), |
| "PackedAttributes must be 64-bits exactly."); |
| |
| attributeData[numAttributes++] = gl::bitCast<uint64_t>(packedAttrib); |
| } |
| |
| bool PackedAttributeLayout::operator==(const PackedAttributeLayout &other) const |
| { |
| return (numAttributes == other.numAttributes) && (flags == other.flags) && |
| (attributeData == other.attributeData); |
| } |
| |
| InputLayoutCache::InputLayoutCache() : mLayoutCache(kDefaultCacheSize * 2) {} |
| |
| InputLayoutCache::~InputLayoutCache() {} |
| |
| void InputLayoutCache::clear() |
| { |
| mLayoutCache.Clear(); |
| } |
| |
| angle::Result InputLayoutCache::getInputLayout( |
| Context11 *context11, |
| const gl::State &state, |
| const std::vector<const TranslatedAttribute *> ¤tAttributes, |
| const AttribIndexArray &sortedSemanticIndices, |
| gl::PrimitiveMode mode, |
| GLsizei vertexCount, |
| GLsizei instances, |
| const d3d11::InputLayout **inputLayoutOut) |
| { |
| gl::Program *program = state.getProgram(); |
| const auto &shaderAttributes = program->getAttributes(); |
| PackedAttributeLayout layout; |
| |
| ProgramD3D *programD3D = GetImplAs<ProgramD3D>(program); |
| bool programUsesInstancedPointSprites = |
| programD3D->usesPointSize() && programD3D->usesInstancedPointSpriteEmulation(); |
| bool instancedPointSpritesActive = |
| programUsesInstancedPointSprites && (mode == gl::PrimitiveMode::Points); |
| |
| if (programUsesInstancedPointSprites) |
| { |
| layout.flags |= PackedAttributeLayout::FLAG_USES_INSTANCED_SPRITES; |
| } |
| |
| if (instancedPointSpritesActive) |
| { |
| layout.flags |= PackedAttributeLayout::FLAG_INSTANCED_SPRITES_ACTIVE; |
| } |
| |
| if (instances > 0) |
| { |
| layout.flags |= PackedAttributeLayout::FLAG_INSTANCED_RENDERING_ACTIVE; |
| } |
| |
| const auto &attribs = state.getVertexArray()->getVertexAttributes(); |
| const auto &bindings = state.getVertexArray()->getVertexBindings(); |
| const auto &locationToSemantic = programD3D->getAttribLocationToD3DSemantics(); |
| int divisorMultiplier = program->usesMultiview() ? program->getNumViews() : 1; |
| |
| for (size_t attribIndex : state.getProgramExecutable()->getActiveAttribLocationsMask()) |
| { |
| // Record the type of the associated vertex shader vector in our key |
| // This will prevent mismatched vertex shaders from using the same input layout |
| GLenum glslElementType = GetGLSLAttributeType(shaderAttributes, attribIndex); |
| |
| const auto &attrib = attribs[attribIndex]; |
| const auto &binding = bindings[attrib.bindingIndex]; |
| int d3dSemantic = locationToSemantic[attribIndex]; |
| |
| const auto ¤tValue = |
| state.getVertexAttribCurrentValue(static_cast<unsigned int>(attribIndex)); |
| angle::FormatID vertexFormatID = gl::GetVertexFormatID(attrib, currentValue.Type); |
| |
| layout.addAttributeData(glslElementType, d3dSemantic, vertexFormatID, |
| binding.getDivisor() * divisorMultiplier); |
| } |
| |
| if (layout.numAttributes > 0 || layout.flags != 0) |
| { |
| auto it = mLayoutCache.Get(layout); |
| if (it != mLayoutCache.end()) |
| { |
| *inputLayoutOut = &it->second; |
| } |
| else |
| { |
| angle::TrimCache(mLayoutCache.max_size() / 2, kGCLimit, "input layout", &mLayoutCache); |
| |
| d3d11::InputLayout newInputLayout; |
| ANGLE_TRY(createInputLayout(context11, sortedSemanticIndices, currentAttributes, mode, |
| vertexCount, instances, &newInputLayout)); |
| |
| auto insertIt = mLayoutCache.Put(layout, std::move(newInputLayout)); |
| *inputLayoutOut = &insertIt->second; |
| } |
| } |
| |
| return angle::Result::Continue; |
| } |
| |
| angle::Result InputLayoutCache::createInputLayout( |
| Context11 *context11, |
| const AttribIndexArray &sortedSemanticIndices, |
| const std::vector<const TranslatedAttribute *> ¤tAttributes, |
| gl::PrimitiveMode mode, |
| GLsizei vertexCount, |
| GLsizei instances, |
| d3d11::InputLayout *inputLayoutOut) |
| { |
| Renderer11 *renderer = context11->getRenderer(); |
| ProgramD3D *programD3D = renderer->getStateManager()->getProgramD3D(); |
| D3D_FEATURE_LEVEL featureLevel = renderer->getRenderer11DeviceCaps().featureLevel; |
| |
| bool programUsesInstancedPointSprites = |
| programD3D->usesPointSize() && programD3D->usesInstancedPointSpriteEmulation(); |
| |
| unsigned int inputElementCount = 0; |
| gl::AttribArray<D3D11_INPUT_ELEMENT_DESC> inputElements; |
| |
| for (size_t attribIndex = 0; attribIndex < currentAttributes.size(); ++attribIndex) |
| { |
| const auto &attrib = *currentAttributes[attribIndex]; |
| const int sortedIndex = sortedSemanticIndices[attribIndex]; |
| |
| D3D11_INPUT_CLASSIFICATION inputClass = |
| attrib.divisor > 0 ? D3D11_INPUT_PER_INSTANCE_DATA : D3D11_INPUT_PER_VERTEX_DATA; |
| |
| angle::FormatID vertexFormatID = |
| gl::GetVertexFormatID(*attrib.attribute, attrib.currentValueType); |
| const auto &vertexFormatInfo = d3d11::GetVertexFormatInfo(vertexFormatID, featureLevel); |
| |
| auto *inputElement = &inputElements[inputElementCount]; |
| |
| inputElement->SemanticName = "TEXCOORD"; |
| inputElement->SemanticIndex = sortedIndex; |
| inputElement->Format = vertexFormatInfo.nativeFormat; |
| inputElement->InputSlot = static_cast<UINT>(attribIndex); |
| inputElement->AlignedByteOffset = 0; |
| inputElement->InputSlotClass = inputClass; |
| inputElement->InstanceDataStepRate = attrib.divisor; |
| |
| inputElementCount++; |
| } |
| |
| // Instanced PointSprite emulation requires additional entries in the |
| // inputlayout to support the vertices that make up the pointsprite quad. |
| // We do this even if mode != GL_POINTS, since the shader signature has these inputs, and the |
| // input layout must match the shader |
| if (programUsesInstancedPointSprites) |
| { |
| // On 9_3, we must ensure that slot 0 contains non-instanced data. |
| // If slot 0 currently contains instanced data then we swap it with a non-instanced element. |
| // Note that instancing is only available on 9_3 via ANGLE_instanced_arrays, since 9_3 |
| // doesn't support OpenGL ES 3.0. |
| // As per the spec for ANGLE_instanced_arrays, not all attributes can be instanced |
| // simultaneously, so a non-instanced element must exist. |
| |
| UINT numIndicesPerInstance = 0; |
| if (instances > 0) |
| { |
| // This requires that the index range is resolved. |
| // Note: Vertex indexes can be arbitrarily large. |
| numIndicesPerInstance = gl::clampCast<UINT>(vertexCount); |
| } |
| |
| for (size_t elementIndex = 0; elementIndex < inputElementCount; ++elementIndex) |
| { |
| // If rendering points and instanced pointsprite emulation is being used, the |
| // inputClass is required to be configured as per instance data |
| if (mode == gl::PrimitiveMode::Points) |
| { |
| inputElements[elementIndex].InputSlotClass = D3D11_INPUT_PER_INSTANCE_DATA; |
| inputElements[elementIndex].InstanceDataStepRate = 1; |
| if (numIndicesPerInstance > 0 && currentAttributes[elementIndex]->divisor > 0) |
| { |
| inputElements[elementIndex].InstanceDataStepRate = numIndicesPerInstance; |
| } |
| } |
| inputElements[elementIndex].InputSlot++; |
| } |
| |
| inputElements[inputElementCount].SemanticName = "SPRITEPOSITION"; |
| inputElements[inputElementCount].SemanticIndex = 0; |
| inputElements[inputElementCount].Format = DXGI_FORMAT_R32G32B32_FLOAT; |
| inputElements[inputElementCount].InputSlot = 0; |
| inputElements[inputElementCount].AlignedByteOffset = 0; |
| inputElements[inputElementCount].InputSlotClass = D3D11_INPUT_PER_VERTEX_DATA; |
| inputElements[inputElementCount].InstanceDataStepRate = 0; |
| inputElementCount++; |
| |
| inputElements[inputElementCount].SemanticName = "SPRITETEXCOORD"; |
| inputElements[inputElementCount].SemanticIndex = 0; |
| inputElements[inputElementCount].Format = DXGI_FORMAT_R32G32_FLOAT; |
| inputElements[inputElementCount].InputSlot = 0; |
| inputElements[inputElementCount].AlignedByteOffset = sizeof(float) * 3; |
| inputElements[inputElementCount].InputSlotClass = D3D11_INPUT_PER_VERTEX_DATA; |
| inputElements[inputElementCount].InstanceDataStepRate = 0; |
| inputElementCount++; |
| } |
| |
| ShaderExecutableD3D *shader = nullptr; |
| ANGLE_TRY(programD3D->getVertexExecutableForCachedInputLayout(context11, &shader, nullptr)); |
| |
| ShaderExecutableD3D *shader11 = GetAs<ShaderExecutable11>(shader); |
| |
| InputElementArray inputElementArray(inputElements.data(), inputElementCount); |
| ShaderData vertexShaderData(shader11->getFunction(), shader11->getLength()); |
| |
| ANGLE_TRY(renderer->allocateResource(context11, inputElementArray, &vertexShaderData, |
| inputLayoutOut)); |
| return angle::Result::Continue; |
| } |
| |
| void InputLayoutCache::setCacheSize(size_t newCacheSize) |
| { |
| // Forces a reset of the cache. |
| LayoutCache newCache(newCacheSize); |
| mLayoutCache.Swap(newCache); |
| } |
| |
| } // namespace rx |