| // |
| // Copyright (c) 2014 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. |
| // |
| |
| // RendererD3D.cpp: Implementation of the base D3D Renderer. |
| |
| #include "libGLESv2/renderer/d3d/RendererD3D.h" |
| |
| #include "libGLESv2/renderer/d3d/IndexDataManager.h" |
| #include "libGLESv2/Framebuffer.h" |
| #include "libGLESv2/FramebufferAttachment.h" |
| #include "libGLESv2/ResourceManager.h" |
| #include "libGLESv2/State.h" |
| #include "libGLESv2/VertexArray.h" |
| #include "common/utilities.h" |
| |
| namespace rx |
| { |
| |
| RendererD3D::RendererD3D(egl::Display *display) |
| : mDisplay(display), |
| mCurrentClientVersion(2) |
| { |
| } |
| |
| RendererD3D::~RendererD3D() |
| { |
| for (auto &incompleteTexture : mIncompleteTextures) |
| { |
| incompleteTexture.second.set(NULL); |
| } |
| mIncompleteTextures.clear(); |
| } |
| |
| // static |
| RendererD3D *RendererD3D::makeRendererD3D(Renderer *renderer) |
| { |
| ASSERT(HAS_DYNAMIC_TYPE(RendererD3D*, renderer)); |
| return static_cast<RendererD3D*>(renderer); |
| } |
| |
| gl::Error RendererD3D::drawElements(const gl::Data &data, |
| GLenum mode, GLsizei count, GLenum type, |
| const GLvoid *indices, GLsizei instances, |
| const RangeUI &indexRange) |
| { |
| ASSERT(data.state->getCurrentProgramId() != 0); |
| |
| gl::ProgramBinary *programBinary = data.state->getCurrentProgramBinary(); |
| programBinary->updateSamplerMapping(); |
| |
| gl::Error error = generateSwizzles(data); |
| if (error.isError()) |
| { |
| return error; |
| } |
| |
| if (!applyPrimitiveType(mode, count)) |
| { |
| return gl::Error(GL_NO_ERROR); |
| } |
| |
| error = applyRenderTarget(data, mode, false); |
| if (error.isError()) |
| { |
| return error; |
| } |
| |
| error = applyState(data, mode); |
| if (error.isError()) |
| { |
| return error; |
| } |
| |
| gl::VertexArray *vao = data.state->getVertexArray(); |
| rx::TranslatedIndexData indexInfo; |
| indexInfo.indexRange = indexRange; |
| error = applyIndexBuffer(indices, vao->getElementArrayBuffer(), count, mode, type, &indexInfo); |
| if (error.isError()) |
| { |
| return error; |
| } |
| |
| GLsizei vertexCount = indexInfo.indexRange.length() + 1; |
| error = applyVertexBuffer(*data.state, indexInfo.indexRange.start, vertexCount, instances); |
| if (error.isError()) |
| { |
| return error; |
| } |
| |
| bool transformFeedbackActive = applyTransformFeedbackBuffers(data); |
| // Transform feedback is not allowed for DrawElements, this error should have been caught at the API validation |
| // layer. |
| ASSERT(!transformFeedbackActive); |
| |
| error = applyShaders(data, transformFeedbackActive); |
| if (error.isError()) |
| { |
| return error; |
| } |
| |
| error = applyTextures(data); |
| if (error.isError()) |
| { |
| return error; |
| } |
| |
| error = applyUniformBuffers(data); |
| if (error.isError()) |
| { |
| return error; |
| } |
| |
| if (!skipDraw(data, mode)) |
| { |
| error = drawElements(mode, count, type, indices, vao->getElementArrayBuffer(), indexInfo, instances); |
| if (error.isError()) |
| { |
| return error; |
| } |
| } |
| |
| return gl::Error(GL_NO_ERROR); |
| } |
| |
| gl::Error RendererD3D::drawArrays(const gl::Data &data, |
| GLenum mode, GLint first, |
| GLsizei count, GLsizei instances) |
| { |
| ASSERT(data.state->getCurrentProgramId() != 0); |
| |
| gl::ProgramBinary *programBinary = data.state->getCurrentProgramBinary(); |
| programBinary->updateSamplerMapping(); |
| |
| gl::Error error = generateSwizzles(data); |
| if (error.isError()) |
| { |
| return error; |
| } |
| |
| if (!applyPrimitiveType(mode, count)) |
| { |
| return gl::Error(GL_NO_ERROR); |
| } |
| |
| error = applyRenderTarget(data, mode, false); |
| if (error.isError()) |
| { |
| return error; |
| } |
| |
| error = applyState(data, mode); |
| if (error.isError()) |
| { |
| return error; |
| } |
| |
| error = applyVertexBuffer(*data.state, first, count, instances); |
| if (error.isError()) |
| { |
| return error; |
| } |
| |
| bool transformFeedbackActive = applyTransformFeedbackBuffers(data); |
| |
| error = applyShaders(data, transformFeedbackActive); |
| if (error.isError()) |
| { |
| return error; |
| } |
| |
| error = applyTextures(data); |
| if (error.isError()) |
| { |
| return error; |
| } |
| |
| error = applyUniformBuffers(data); |
| if (error.isError()) |
| { |
| return error; |
| } |
| |
| if (!skipDraw(data, mode)) |
| { |
| error = drawArrays(mode, count, instances, transformFeedbackActive); |
| if (error.isError()) |
| { |
| return error; |
| } |
| |
| if (transformFeedbackActive) |
| { |
| markTransformFeedbackUsage(data); |
| } |
| } |
| |
| return gl::Error(GL_NO_ERROR); |
| } |
| |
| gl::Error RendererD3D::generateSwizzles(const gl::Data &data, gl::SamplerType type) |
| { |
| gl::ProgramBinary *programBinary = data.state->getCurrentProgramBinary(); |
| |
| size_t samplerRange = programBinary->getUsedSamplerRange(type); |
| |
| for (size_t i = 0; i < samplerRange; i++) |
| { |
| GLenum textureType = programBinary->getSamplerTextureType(type, i); |
| GLint textureUnit = programBinary->getSamplerMapping(type, i, *data.caps); |
| if (textureUnit != -1) |
| { |
| gl::Texture *texture = data.state->getSamplerTexture(textureUnit, textureType); |
| ASSERT(texture); |
| if (texture->getSamplerState().swizzleRequired()) |
| { |
| gl::Error error = generateSwizzle(texture); |
| if (error.isError()) |
| { |
| return error; |
| } |
| } |
| } |
| } |
| |
| return gl::Error(GL_NO_ERROR); |
| } |
| |
| gl::Error RendererD3D::generateSwizzles(const gl::Data &data) |
| { |
| gl::Error error = generateSwizzles(data, gl::SAMPLER_VERTEX); |
| if (error.isError()) |
| { |
| return error; |
| } |
| |
| error = generateSwizzles(data, gl::SAMPLER_PIXEL); |
| if (error.isError()) |
| { |
| return error; |
| } |
| |
| return gl::Error(GL_NO_ERROR); |
| } |
| |
| // Applies the render target surface, depth stencil surface, viewport rectangle and |
| // scissor rectangle to the renderer |
| gl::Error RendererD3D::applyRenderTarget(const gl::Data &data, GLenum drawMode, bool ignoreViewport) |
| { |
| const gl::Framebuffer *framebufferObject = data.state->getDrawFramebuffer(); |
| ASSERT(framebufferObject && framebufferObject->completeness(data) == GL_FRAMEBUFFER_COMPLETE); |
| |
| gl::Error error = applyRenderTarget(framebufferObject); |
| if (error.isError()) |
| { |
| return error; |
| } |
| |
| float nearZ, farZ; |
| data.state->getDepthRange(&nearZ, &farZ); |
| setViewport(data.state->getViewport(), nearZ, farZ, drawMode, |
| data.state->getRasterizerState().frontFace, ignoreViewport); |
| |
| setScissorRectangle(data.state->getScissor(), data.state->isScissorTestEnabled()); |
| |
| return gl::Error(GL_NO_ERROR); |
| } |
| |
| // Applies the fixed-function state (culling, depth test, alpha blending, stenciling, etc) to the Direct3D device |
| gl::Error RendererD3D::applyState(const gl::Data &data, GLenum drawMode) |
| { |
| const gl::Framebuffer *framebufferObject = data.state->getDrawFramebuffer(); |
| int samples = framebufferObject->getSamples(data); |
| |
| gl::RasterizerState rasterizer = data.state->getRasterizerState(); |
| rasterizer.pointDrawMode = (drawMode == GL_POINTS); |
| rasterizer.multiSample = (samples != 0); |
| |
| gl::Error error = setRasterizerState(rasterizer); |
| if (error.isError()) |
| { |
| return error; |
| } |
| |
| unsigned int mask = 0; |
| if (data.state->isSampleCoverageEnabled()) |
| { |
| GLclampf coverageValue; |
| bool coverageInvert = false; |
| data.state->getSampleCoverageParams(&coverageValue, &coverageInvert); |
| if (coverageValue != 0) |
| { |
| float threshold = 0.5f; |
| |
| for (int i = 0; i < samples; ++i) |
| { |
| mask <<= 1; |
| |
| if ((i + 1) * coverageValue >= threshold) |
| { |
| threshold += 1.0f; |
| mask |= 1; |
| } |
| } |
| } |
| |
| if (coverageInvert) |
| { |
| mask = ~mask; |
| } |
| } |
| else |
| { |
| mask = 0xFFFFFFFF; |
| } |
| error = setBlendState(framebufferObject, data.state->getBlendState(), data.state->getBlendColor(), mask); |
| if (error.isError()) |
| { |
| return error; |
| } |
| |
| error = setDepthStencilState(data.state->getDepthStencilState(), data.state->getStencilRef(), |
| data.state->getStencilBackRef(), rasterizer.frontFace == GL_CCW); |
| if (error.isError()) |
| { |
| return error; |
| } |
| |
| return gl::Error(GL_NO_ERROR); |
| } |
| |
| bool RendererD3D::applyTransformFeedbackBuffers(const gl::Data &data) |
| { |
| gl::TransformFeedback *curTransformFeedback = data.state->getCurrentTransformFeedback(); |
| if (curTransformFeedback && curTransformFeedback->isStarted() && !curTransformFeedback->isPaused()) |
| { |
| applyTransformFeedbackBuffers(*data.state); |
| return true; |
| } |
| else |
| { |
| return false; |
| } |
| } |
| |
| // Applies the shaders and shader constants to the Direct3D device |
| gl::Error RendererD3D::applyShaders(const gl::Data &data, bool transformFeedbackActive) |
| { |
| gl::ProgramBinary *programBinary = data.state->getCurrentProgramBinary(); |
| |
| gl::VertexFormat inputLayout[gl::MAX_VERTEX_ATTRIBS]; |
| gl::VertexFormat::GetInputLayout(inputLayout, programBinary, *data.state); |
| |
| const gl::Framebuffer *fbo = data.state->getDrawFramebuffer(); |
| |
| gl::Error error = applyShaders(programBinary, inputLayout, fbo, data.state->getRasterizerState().rasterizerDiscard, transformFeedbackActive); |
| if (error.isError()) |
| { |
| return error; |
| } |
| |
| return programBinary->applyUniforms(); |
| } |
| |
| // For each Direct3D sampler of either the pixel or vertex stage, |
| // looks up the corresponding OpenGL texture image unit and texture type, |
| // and sets the texture and its addressing/filtering state (or NULL when inactive). |
| gl::Error RendererD3D::applyTextures(const gl::Data &data, gl::SamplerType shaderType, |
| const FramebufferTextureSerialArray &framebufferSerials, size_t framebufferSerialCount) |
| { |
| gl::ProgramBinary *programBinary = data.state->getCurrentProgramBinary(); |
| |
| size_t samplerRange = programBinary->getUsedSamplerRange(shaderType); |
| for (size_t samplerIndex = 0; samplerIndex < samplerRange; samplerIndex++) |
| { |
| GLenum textureType = programBinary->getSamplerTextureType(shaderType, samplerIndex); |
| GLint textureUnit = programBinary->getSamplerMapping(shaderType, samplerIndex, *data.caps); |
| if (textureUnit != -1) |
| { |
| gl::Texture *texture = data.state->getSamplerTexture(textureUnit, textureType); |
| ASSERT(texture); |
| gl::SamplerState sampler = texture->getSamplerState(); |
| |
| gl::Sampler *samplerObject = data.state->getSampler(textureUnit); |
| if (samplerObject) |
| { |
| samplerObject->getState(&sampler); |
| } |
| |
| // TODO: std::binary_search may become unavailable using older versions of GCC |
| if (texture->isSamplerComplete(sampler, *data.textureCaps, *data.extensions, data.clientVersion) && |
| !std::binary_search(framebufferSerials.begin(), framebufferSerials.begin() + framebufferSerialCount, texture->getTextureSerial())) |
| { |
| gl::Error error = setSamplerState(shaderType, samplerIndex, texture, sampler); |
| if (error.isError()) |
| { |
| return error; |
| } |
| |
| error = setTexture(shaderType, samplerIndex, texture); |
| if (error.isError()) |
| { |
| return error; |
| } |
| } |
| else |
| { |
| // Texture is not sampler complete or it is in use by the framebuffer. Bind the incomplete texture. |
| gl::Texture *incompleteTexture = getIncompleteTexture(textureType); |
| gl::Error error = setTexture(shaderType, samplerIndex, incompleteTexture); |
| if (error.isError()) |
| { |
| return error; |
| } |
| } |
| } |
| else |
| { |
| // No texture bound to this slot even though it is used by the shader, bind a NULL texture |
| gl::Error error = setTexture(shaderType, samplerIndex, NULL); |
| if (error.isError()) |
| { |
| return error; |
| } |
| } |
| } |
| |
| // Set all the remaining textures to NULL |
| size_t samplerCount = (shaderType == gl::SAMPLER_PIXEL) ? data.caps->maxTextureImageUnits |
| : data.caps->maxVertexTextureImageUnits; |
| for (size_t samplerIndex = samplerRange; samplerIndex < samplerCount; samplerIndex++) |
| { |
| gl::Error error = setTexture(shaderType, samplerIndex, NULL); |
| if (error.isError()) |
| { |
| return error; |
| } |
| } |
| |
| return gl::Error(GL_NO_ERROR); |
| } |
| |
| gl::Error RendererD3D::applyTextures(const gl::Data &data) |
| { |
| FramebufferTextureSerialArray framebufferSerials; |
| size_t framebufferSerialCount = getBoundFramebufferTextureSerials(data, &framebufferSerials); |
| |
| gl::Error error = applyTextures(data, gl::SAMPLER_VERTEX, framebufferSerials, framebufferSerialCount); |
| if (error.isError()) |
| { |
| return error; |
| } |
| |
| error = applyTextures(data, gl::SAMPLER_PIXEL, framebufferSerials, framebufferSerialCount); |
| if (error.isError()) |
| { |
| return error; |
| } |
| |
| return gl::Error(GL_NO_ERROR); |
| } |
| |
| gl::Error RendererD3D::applyUniformBuffers(const gl::Data &data) |
| { |
| gl::Program *programObject = data.resourceManager->getProgram(data.state->getCurrentProgramId()); |
| gl::ProgramBinary *programBinary = programObject->getProgramBinary(); |
| |
| std::vector<gl::Buffer*> boundBuffers; |
| |
| for (unsigned int uniformBlockIndex = 0; uniformBlockIndex < programBinary->getActiveUniformBlockCount(); uniformBlockIndex++) |
| { |
| GLuint blockBinding = programObject->getUniformBlockBinding(uniformBlockIndex); |
| |
| if (data.state->getIndexedUniformBuffer(blockBinding)->id() == 0) |
| { |
| // undefined behaviour |
| return gl::Error(GL_INVALID_OPERATION, "It is undefined behaviour to have a used but unbound uniform buffer."); |
| } |
| else |
| { |
| gl::Buffer *uniformBuffer = data.state->getIndexedUniformBuffer(blockBinding); |
| ASSERT(uniformBuffer); |
| boundBuffers.push_back(uniformBuffer); |
| } |
| } |
| |
| return programBinary->applyUniformBuffers(boundBuffers, *data.caps); |
| } |
| |
| bool RendererD3D::skipDraw(const gl::Data &data, GLenum drawMode) |
| { |
| if (drawMode == GL_POINTS) |
| { |
| // ProgramBinary assumes non-point rendering if gl_PointSize isn't written, |
| // which affects varying interpolation. Since the value of gl_PointSize is |
| // undefined when not written, just skip drawing to avoid unexpected results. |
| if (!data.state->getCurrentProgramBinary()->usesPointSize()) |
| { |
| // This is stictly speaking not an error, but developers should be |
| // notified of risking undefined behavior. |
| ERR("Point rendering without writing to gl_PointSize."); |
| |
| return true; |
| } |
| } |
| else if (gl::IsTriangleMode(drawMode)) |
| { |
| if (data.state->getRasterizerState().cullFace && data.state->getRasterizerState().cullMode == GL_FRONT_AND_BACK) |
| { |
| return true; |
| } |
| } |
| |
| return false; |
| } |
| |
| void RendererD3D::markTransformFeedbackUsage(const gl::Data &data) |
| { |
| for (size_t i = 0; i < data.caps->maxTransformFeedbackSeparateAttributes; i++) |
| { |
| gl::Buffer *buffer = data.state->getIndexedTransformFeedbackBuffer(i); |
| if (buffer) |
| { |
| buffer->markTransformFeedbackUsage(); |
| } |
| } |
| } |
| |
| size_t RendererD3D::getBoundFramebufferTextureSerials(const gl::Data &data, |
| FramebufferTextureSerialArray *outSerialArray) |
| { |
| size_t serialCount = 0; |
| |
| const gl::Framebuffer *drawFramebuffer = data.state->getDrawFramebuffer(); |
| for (unsigned int i = 0; i < gl::IMPLEMENTATION_MAX_DRAW_BUFFERS; i++) |
| { |
| gl::FramebufferAttachment *attachment = drawFramebuffer->getColorbuffer(i); |
| if (attachment && attachment->isTexture()) |
| { |
| gl::Texture *texture = attachment->getTexture(); |
| (*outSerialArray)[serialCount++] = texture->getTextureSerial(); |
| } |
| } |
| |
| gl::FramebufferAttachment *depthStencilAttachment = drawFramebuffer->getDepthOrStencilbuffer(); |
| if (depthStencilAttachment && depthStencilAttachment->isTexture()) |
| { |
| gl::Texture *depthStencilTexture = depthStencilAttachment->getTexture(); |
| (*outSerialArray)[serialCount++] = depthStencilTexture->getTextureSerial(); |
| } |
| |
| std::sort(outSerialArray->begin(), outSerialArray->begin() + serialCount); |
| |
| return serialCount; |
| } |
| |
| gl::Texture *RendererD3D::getIncompleteTexture(GLenum type) |
| { |
| if (mIncompleteTextures.find(type) == mIncompleteTextures.end()) |
| { |
| const GLubyte color[] = { 0, 0, 0, 255 }; |
| const gl::PixelUnpackState incompleteUnpackState(1); |
| |
| gl::Texture* t = NULL; |
| switch (type) |
| { |
| default: |
| UNREACHABLE(); |
| // default falls through to TEXTURE_2D |
| |
| case GL_TEXTURE_2D: |
| { |
| gl::Texture2D *incomplete2d = new gl::Texture2D(createTexture(GL_TEXTURE_2D), gl::Texture::INCOMPLETE_TEXTURE_ID); |
| incomplete2d->setImage(0, 1, 1, GL_RGBA, GL_RGBA, GL_UNSIGNED_BYTE, incompleteUnpackState, color); |
| t = incomplete2d; |
| } |
| break; |
| |
| case GL_TEXTURE_CUBE_MAP: |
| { |
| gl::TextureCubeMap *incompleteCube = new gl::TextureCubeMap(createTexture(GL_TEXTURE_CUBE_MAP), gl::Texture::INCOMPLETE_TEXTURE_ID); |
| |
| incompleteCube->setImage(GL_TEXTURE_CUBE_MAP_POSITIVE_X, 0, 1, 1, GL_RGBA, GL_RGBA, GL_UNSIGNED_BYTE, incompleteUnpackState, color); |
| incompleteCube->setImage(GL_TEXTURE_CUBE_MAP_NEGATIVE_X, 0, 1, 1, GL_RGBA, GL_RGBA, GL_UNSIGNED_BYTE, incompleteUnpackState, color); |
| incompleteCube->setImage(GL_TEXTURE_CUBE_MAP_POSITIVE_Y, 0, 1, 1, GL_RGBA, GL_RGBA, GL_UNSIGNED_BYTE, incompleteUnpackState, color); |
| incompleteCube->setImage(GL_TEXTURE_CUBE_MAP_NEGATIVE_Y, 0, 1, 1, GL_RGBA, GL_RGBA, GL_UNSIGNED_BYTE, incompleteUnpackState, color); |
| incompleteCube->setImage(GL_TEXTURE_CUBE_MAP_POSITIVE_Z, 0, 1, 1, GL_RGBA, GL_RGBA, GL_UNSIGNED_BYTE, incompleteUnpackState, color); |
| incompleteCube->setImage(GL_TEXTURE_CUBE_MAP_NEGATIVE_Z, 0, 1, 1, GL_RGBA, GL_RGBA, GL_UNSIGNED_BYTE, incompleteUnpackState, color); |
| |
| t = incompleteCube; |
| } |
| break; |
| |
| case GL_TEXTURE_3D: |
| { |
| gl::Texture3D *incomplete3d = new gl::Texture3D(createTexture(GL_TEXTURE_3D), gl::Texture::INCOMPLETE_TEXTURE_ID); |
| incomplete3d->setImage(0, 1, 1, 1, GL_RGBA, GL_RGBA, GL_UNSIGNED_BYTE, incompleteUnpackState, color); |
| |
| t = incomplete3d; |
| } |
| break; |
| |
| case GL_TEXTURE_2D_ARRAY: |
| { |
| gl::Texture2DArray *incomplete2darray = new gl::Texture2DArray(createTexture(GL_TEXTURE_2D_ARRAY), gl::Texture::INCOMPLETE_TEXTURE_ID); |
| incomplete2darray->setImage(0, 1, 1, 1, GL_RGBA, GL_RGBA, GL_UNSIGNED_BYTE, incompleteUnpackState, color); |
| |
| t = incomplete2darray; |
| } |
| break; |
| } |
| |
| mIncompleteTextures[type].set(t); |
| } |
| |
| return mIncompleteTextures[type].get(); |
| } |
| |
| } |
