| // |
| // Copyright 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. |
| // |
| |
| // State.h: Defines the State class, encapsulating raw GL state |
| |
| #ifndef LIBANGLE_STATE_H_ |
| #define LIBANGLE_STATE_H_ |
| |
| #include <bitset> |
| #include <memory> |
| |
| #include "common/Color.h" |
| #include "common/angleutils.h" |
| #include "common/bitset_utils.h" |
| #include "libANGLE/Debug.h" |
| #include "libANGLE/GLES1State.h" |
| #include "libANGLE/Overlay.h" |
| #include "libANGLE/Program.h" |
| #include "libANGLE/ProgramPipeline.h" |
| #include "libANGLE/RefCountObject.h" |
| #include "libANGLE/Renderbuffer.h" |
| #include "libANGLE/Sampler.h" |
| #include "libANGLE/Texture.h" |
| #include "libANGLE/TransformFeedback.h" |
| #include "libANGLE/Version.h" |
| #include "libANGLE/VertexArray.h" |
| #include "libANGLE/angletypes.h" |
| |
| namespace gl |
| { |
| class BufferManager; |
| struct Caps; |
| class Context; |
| class FramebufferManager; |
| class MemoryObjectManager; |
| class PathManager; |
| class ProgramPipelineManager; |
| class Query; |
| class RenderbufferManager; |
| class SamplerManager; |
| class SemaphoreManager; |
| class ShaderProgramManager; |
| class SyncManager; |
| class TextureManager; |
| class VertexArray; |
| |
| static constexpr Version ES_1_0 = Version(1, 0); |
| static constexpr Version ES_1_1 = Version(1, 1); |
| static constexpr Version ES_2_0 = Version(2, 0); |
| static constexpr Version ES_3_0 = Version(3, 0); |
| static constexpr Version ES_3_1 = Version(3, 1); |
| static constexpr Version ES_3_2 = Version(3, 2); |
| |
| using ContextID = uintptr_t; |
| |
| template <typename T> |
| using BufferBindingMap = angle::PackedEnumMap<BufferBinding, T>; |
| using BoundBufferMap = BufferBindingMap<BindingPointer<Buffer>>; |
| using TextureBindingVector = std::vector<BindingPointer<Texture>>; |
| using TextureBindingMap = angle::PackedEnumMap<TextureType, TextureBindingVector>; |
| |
| class State : angle::NonCopyable |
| { |
| public: |
| State(ContextID contextIn, |
| const State *shareContextState, |
| TextureManager *shareTextures, |
| const OverlayType *overlay, |
| const EGLenum clientType, |
| const Version &clientVersion, |
| bool debug, |
| bool bindGeneratesResource, |
| bool clientArraysEnabled, |
| bool robustResourceInit, |
| bool programBinaryCacheEnabled, |
| EGLenum contextPriority); |
| ~State(); |
| |
| int id() const { return mID; } |
| |
| void initialize(Context *context); |
| void reset(const Context *context); |
| |
| // Getters |
| ContextID getContextID() const { return mContext; } |
| EGLenum getClientType() const { return mClientType; } |
| EGLenum getContextPriority() const { return mContextPriority; } |
| GLint getClientMajorVersion() const { return mClientVersion.major; } |
| GLint getClientMinorVersion() const { return mClientVersion.minor; } |
| const Version &getClientVersion() const { return mClientVersion; } |
| const Caps &getCaps() const { return mCaps; } |
| const TextureCapsMap &getTextureCaps() const { return mTextureCaps; } |
| const Extensions &getExtensions() const { return mExtensions; } |
| const Limitations &getLimitations() const { return mLimitations; } |
| |
| bool isWebGL() const { return mExtensions.webglCompatibility; } |
| |
| bool isWebGL1() const { return (isWebGL() && mClientVersion.major == 2); } |
| |
| const TextureCaps &getTextureCap(GLenum internalFormat) const |
| { |
| return mTextureCaps.get(internalFormat); |
| } |
| |
| // State chunk getters |
| const RasterizerState &getRasterizerState() const; |
| const BlendState &getBlendState() const { return mBlend; } |
| const DepthStencilState &getDepthStencilState() const; |
| |
| // Clear behavior setters & state parameter block generation function |
| void setColorClearValue(float red, float green, float blue, float alpha); |
| void setDepthClearValue(float depth); |
| void setStencilClearValue(int stencil); |
| |
| const ColorF &getColorClearValue() const { return mColorClearValue; } |
| float getDepthClearValue() const { return mDepthClearValue; } |
| int getStencilClearValue() const { return mStencilClearValue; } |
| |
| // Write mask manipulation |
| void setColorMask(bool red, bool green, bool blue, bool alpha); |
| void setDepthMask(bool mask); |
| |
| // Discard toggle & query |
| bool isRasterizerDiscardEnabled() const { return mRasterizer.rasterizerDiscard; } |
| void setRasterizerDiscard(bool enabled); |
| |
| // Primitive restart |
| bool isPrimitiveRestartEnabled() const { return mPrimitiveRestart; } |
| void setPrimitiveRestart(bool enabled); |
| |
| // Face culling state manipulation |
| bool isCullFaceEnabled() const { return mRasterizer.cullFace; } |
| void setCullFace(bool enabled); |
| void setCullMode(CullFaceMode mode); |
| void setFrontFace(GLenum front); |
| |
| // Depth test state manipulation |
| bool isDepthTestEnabled() const { return mDepthStencil.depthTest; } |
| void setDepthTest(bool enabled); |
| void setDepthFunc(GLenum depthFunc); |
| void setDepthRange(float zNear, float zFar); |
| float getNearPlane() const { return mNearZ; } |
| float getFarPlane() const { return mFarZ; } |
| |
| // Blend state manipulation |
| bool isBlendEnabled() const { return mBlend.blend; } |
| void setBlend(bool enabled); |
| void setBlendFactors(GLenum sourceRGB, GLenum destRGB, GLenum sourceAlpha, GLenum destAlpha); |
| void setBlendColor(float red, float green, float blue, float alpha); |
| void setBlendEquation(GLenum rgbEquation, GLenum alphaEquation); |
| const ColorF &getBlendColor() const { return mBlendColor; } |
| |
| // Stencil state maniupulation |
| bool isStencilTestEnabled() const { return mDepthStencil.stencilTest; } |
| void setStencilTest(bool enabled); |
| void setStencilParams(GLenum stencilFunc, GLint stencilRef, GLuint stencilMask); |
| void setStencilBackParams(GLenum stencilBackFunc, GLint stencilBackRef, GLuint stencilBackMask); |
| void setStencilWritemask(GLuint stencilWritemask); |
| void setStencilBackWritemask(GLuint stencilBackWritemask); |
| void setStencilOperations(GLenum stencilFail, |
| GLenum stencilPassDepthFail, |
| GLenum stencilPassDepthPass); |
| void setStencilBackOperations(GLenum stencilBackFail, |
| GLenum stencilBackPassDepthFail, |
| GLenum stencilBackPassDepthPass); |
| GLint getStencilRef() const { return mStencilRef; } |
| GLint getStencilBackRef() const { return mStencilBackRef; } |
| |
| // Depth bias/polygon offset state manipulation |
| bool isPolygonOffsetFillEnabled() const { return mRasterizer.polygonOffsetFill; } |
| void setPolygonOffsetFill(bool enabled); |
| void setPolygonOffsetParams(GLfloat factor, GLfloat units); |
| |
| // Multisample coverage state manipulation |
| bool isSampleAlphaToCoverageEnabled() const { return mBlend.sampleAlphaToCoverage; } |
| void setSampleAlphaToCoverage(bool enabled); |
| bool isSampleCoverageEnabled() const { return mSampleCoverage; } |
| void setSampleCoverage(bool enabled); |
| void setSampleCoverageParams(GLclampf value, bool invert); |
| GLclampf getSampleCoverageValue() const { return mSampleCoverageValue; } |
| bool getSampleCoverageInvert() const { return mSampleCoverageInvert; } |
| |
| // Multisample mask state manipulation. |
| bool isSampleMaskEnabled() const { return mSampleMask; } |
| void setSampleMaskEnabled(bool enabled); |
| void setSampleMaskParams(GLuint maskNumber, GLbitfield mask); |
| GLbitfield getSampleMaskWord(GLuint maskNumber) const |
| { |
| ASSERT(maskNumber < mMaxSampleMaskWords); |
| return mSampleMaskValues[maskNumber]; |
| } |
| GLuint getMaxSampleMaskWords() const { return mMaxSampleMaskWords; } |
| |
| // Multisampling/alpha to one manipulation. |
| void setSampleAlphaToOne(bool enabled); |
| bool isSampleAlphaToOneEnabled() const { return mSampleAlphaToOne; } |
| void setMultisampling(bool enabled); |
| bool isMultisamplingEnabled() const { return mMultiSampling; } |
| |
| // Scissor test state toggle & query |
| bool isScissorTestEnabled() const { return mScissorTest; } |
| void setScissorTest(bool enabled); |
| void setScissorParams(GLint x, GLint y, GLsizei width, GLsizei height); |
| const Rectangle &getScissor() const { return mScissor; } |
| |
| // Dither state toggle & query |
| bool isDitherEnabled() const { return mBlend.dither; } |
| void setDither(bool enabled); |
| |
| // Generic state toggle & query |
| void setEnableFeature(GLenum feature, bool enabled); |
| bool getEnableFeature(GLenum feature) const; |
| |
| // Line width state setter |
| void setLineWidth(GLfloat width); |
| float getLineWidth() const { return mLineWidth; } |
| |
| // Hint setters |
| void setGenerateMipmapHint(GLenum hint); |
| void setFragmentShaderDerivativeHint(GLenum hint); |
| |
| // GL_CHROMIUM_bind_generates_resource |
| bool isBindGeneratesResourceEnabled() const { return mBindGeneratesResource; } |
| |
| // GL_ANGLE_client_arrays |
| bool areClientArraysEnabled() const { return mClientArraysEnabled; } |
| |
| // Viewport state setter/getter |
| void setViewportParams(GLint x, GLint y, GLsizei width, GLsizei height); |
| const Rectangle &getViewport() const { return mViewport; } |
| |
| // Texture binding & active texture unit manipulation |
| void setActiveSampler(unsigned int active); |
| unsigned int getActiveSampler() const { return static_cast<unsigned int>(mActiveSampler); } |
| |
| void setSamplerTexture(const Context *context, TextureType type, Texture *texture); |
| Texture *getTargetTexture(TextureType type) const; |
| |
| Texture *getSamplerTexture(unsigned int sampler, TextureType type) const |
| { |
| ASSERT(sampler < mSamplerTextures[type].size()); |
| return mSamplerTextures[type][sampler].get(); |
| } |
| |
| TextureID getSamplerTextureId(unsigned int sampler, TextureType type) const; |
| void detachTexture(const Context *context, const TextureMap &zeroTextures, TextureID texture); |
| void initializeZeroTextures(const Context *context, const TextureMap &zeroTextures); |
| |
| void invalidateTexture(TextureType type); |
| |
| // Sampler object binding manipulation |
| void setSamplerBinding(const Context *context, GLuint textureUnit, Sampler *sampler); |
| SamplerID getSamplerId(GLuint textureUnit) const |
| { |
| ASSERT(textureUnit < mSamplers.size()); |
| return mSamplers[textureUnit].id(); |
| } |
| |
| Sampler *getSampler(GLuint textureUnit) const { return mSamplers[textureUnit].get(); } |
| |
| using SamplerBindingVector = std::vector<BindingPointer<Sampler>>; |
| const SamplerBindingVector &getSamplers() const { return mSamplers; } |
| |
| void detachSampler(const Context *context, SamplerID sampler); |
| |
| // Renderbuffer binding manipulation |
| void setRenderbufferBinding(const Context *context, Renderbuffer *renderbuffer); |
| RenderbufferID getRenderbufferId() const { return mRenderbuffer.id(); } |
| Renderbuffer *getCurrentRenderbuffer() const { return mRenderbuffer.get(); } |
| void detachRenderbuffer(const Context *context, RenderbufferID renderbuffer); |
| |
| // Framebuffer binding manipulation |
| void setReadFramebufferBinding(Framebuffer *framebuffer); |
| void setDrawFramebufferBinding(Framebuffer *framebuffer); |
| Framebuffer *getTargetFramebuffer(GLenum target) const; |
| Framebuffer *getReadFramebuffer() const { return mReadFramebuffer; } |
| Framebuffer *getDrawFramebuffer() const { return mDrawFramebuffer; } |
| |
| bool removeReadFramebufferBinding(FramebufferID framebuffer); |
| bool removeDrawFramebufferBinding(FramebufferID framebuffer); |
| |
| // Vertex array object binding manipulation |
| void setVertexArrayBinding(const Context *context, VertexArray *vertexArray); |
| bool removeVertexArrayBinding(const Context *context, VertexArrayID vertexArray); |
| VertexArrayID getVertexArrayId() const; |
| |
| VertexArray *getVertexArray() const |
| { |
| ASSERT(mVertexArray != nullptr); |
| return mVertexArray; |
| } |
| |
| // Program binding manipulation |
| angle::Result setProgram(const Context *context, Program *newProgram); |
| |
| Program *getProgram() const |
| { |
| ASSERT(!mProgram || !mProgram->isLinking()); |
| return mProgram; |
| } |
| |
| Program *getLinkedProgram(const Context *context) const |
| { |
| if (mProgram) |
| { |
| mProgram->resolveLink(context); |
| } |
| return mProgram; |
| } |
| |
| // Transform feedback object (not buffer) binding manipulation |
| void setTransformFeedbackBinding(const Context *context, TransformFeedback *transformFeedback); |
| TransformFeedback *getCurrentTransformFeedback() const { return mTransformFeedback.get(); } |
| |
| ANGLE_INLINE bool isTransformFeedbackActive() const |
| { |
| TransformFeedback *curTransformFeedback = mTransformFeedback.get(); |
| return curTransformFeedback && curTransformFeedback->isActive(); |
| } |
| ANGLE_INLINE bool isTransformFeedbackActiveUnpaused() const |
| { |
| TransformFeedback *curTransformFeedback = mTransformFeedback.get(); |
| return curTransformFeedback && curTransformFeedback->isActive() && |
| !curTransformFeedback->isPaused(); |
| } |
| |
| bool removeTransformFeedbackBinding(const Context *context, |
| TransformFeedbackID transformFeedback); |
| |
| // Query binding manipulation |
| bool isQueryActive(QueryType type) const; |
| bool isQueryActive(Query *query) const; |
| void setActiveQuery(const Context *context, QueryType type, Query *query); |
| QueryID getActiveQueryId(QueryType type) const; |
| Query *getActiveQuery(QueryType type) const; |
| |
| // Program Pipeline binding manipulation |
| void setProgramPipelineBinding(const Context *context, ProgramPipeline *pipeline); |
| void detachProgramPipeline(const Context *context, ProgramPipelineID pipeline); |
| |
| //// Typed buffer binding point manipulation //// |
| ANGLE_INLINE void setBufferBinding(const Context *context, BufferBinding target, Buffer *buffer) |
| { |
| (this->*(kBufferSetters[target]))(context, buffer); |
| } |
| |
| ANGLE_INLINE Buffer *getTargetBuffer(BufferBinding target) const |
| { |
| switch (target) |
| { |
| case BufferBinding::ElementArray: |
| return getVertexArray()->getElementArrayBuffer(); |
| default: |
| return mBoundBuffers[target].get(); |
| } |
| } |
| |
| ANGLE_INLINE Buffer *getArrayBuffer() const { return getTargetBuffer(BufferBinding::Array); } |
| |
| angle::Result setIndexedBufferBinding(const Context *context, |
| BufferBinding target, |
| GLuint index, |
| Buffer *buffer, |
| GLintptr offset, |
| GLsizeiptr size); |
| |
| size_t getAtomicCounterBufferCount() const { return mAtomicCounterBuffers.size(); } |
| |
| const OffsetBindingPointer<Buffer> &getIndexedUniformBuffer(size_t index) const; |
| const OffsetBindingPointer<Buffer> &getIndexedAtomicCounterBuffer(size_t index) const; |
| const OffsetBindingPointer<Buffer> &getIndexedShaderStorageBuffer(size_t index) const; |
| |
| // Detach a buffer from all bindings |
| angle::Result detachBuffer(Context *context, const Buffer *buffer); |
| |
| // Vertex attrib manipulation |
| void setEnableVertexAttribArray(unsigned int attribNum, bool enabled); |
| void setVertexAttribf(GLuint index, const GLfloat values[4]); |
| void setVertexAttribu(GLuint index, const GLuint values[4]); |
| void setVertexAttribi(GLuint index, const GLint values[4]); |
| |
| ANGLE_INLINE void setVertexAttribPointer(const Context *context, |
| unsigned int attribNum, |
| Buffer *boundBuffer, |
| GLint size, |
| VertexAttribType type, |
| bool normalized, |
| GLsizei stride, |
| const void *pointer) |
| { |
| mVertexArray->setVertexAttribPointer(context, attribNum, boundBuffer, size, type, |
| normalized, stride, pointer); |
| mDirtyObjects.set(DIRTY_OBJECT_VERTEX_ARRAY); |
| } |
| |
| ANGLE_INLINE void setVertexAttribIPointer(const Context *context, |
| unsigned int attribNum, |
| Buffer *boundBuffer, |
| GLint size, |
| VertexAttribType type, |
| GLsizei stride, |
| const void *pointer) |
| { |
| mVertexArray->setVertexAttribIPointer(context, attribNum, boundBuffer, size, type, stride, |
| pointer); |
| mDirtyObjects.set(DIRTY_OBJECT_VERTEX_ARRAY); |
| } |
| |
| void setVertexAttribDivisor(const Context *context, GLuint index, GLuint divisor); |
| const VertexAttribCurrentValueData &getVertexAttribCurrentValue(size_t attribNum) const |
| { |
| ASSERT(attribNum < mVertexAttribCurrentValues.size()); |
| return mVertexAttribCurrentValues[attribNum]; |
| } |
| |
| const std::vector<VertexAttribCurrentValueData> &getVertexAttribCurrentValues() const |
| { |
| return mVertexAttribCurrentValues; |
| } |
| |
| const void *getVertexAttribPointer(unsigned int attribNum) const; |
| |
| void bindVertexBuffer(const Context *context, |
| GLuint bindingIndex, |
| Buffer *boundBuffer, |
| GLintptr offset, |
| GLsizei stride); |
| void setVertexAttribFormat(GLuint attribIndex, |
| GLint size, |
| VertexAttribType type, |
| bool normalized, |
| bool pureInteger, |
| GLuint relativeOffset); |
| |
| void setVertexAttribBinding(const Context *context, GLuint attribIndex, GLuint bindingIndex) |
| { |
| mVertexArray->setVertexAttribBinding(context, attribIndex, bindingIndex); |
| mDirtyObjects.set(DIRTY_OBJECT_VERTEX_ARRAY); |
| } |
| |
| void setVertexBindingDivisor(GLuint bindingIndex, GLuint divisor); |
| |
| // Pixel pack state manipulation |
| void setPackAlignment(GLint alignment); |
| GLint getPackAlignment() const { return mPack.alignment; } |
| void setPackReverseRowOrder(bool reverseRowOrder); |
| bool getPackReverseRowOrder() const { return mPack.reverseRowOrder; } |
| void setPackRowLength(GLint rowLength); |
| GLint getPackRowLength() const { return mPack.rowLength; } |
| void setPackSkipRows(GLint skipRows); |
| GLint getPackSkipRows() const { return mPack.skipRows; } |
| void setPackSkipPixels(GLint skipPixels); |
| GLint getPackSkipPixels() const { return mPack.skipPixels; } |
| const PixelPackState &getPackState() const { return mPack; } |
| PixelPackState &getPackState() { return mPack; } |
| |
| // Pixel unpack state manipulation |
| void setUnpackAlignment(GLint alignment); |
| GLint getUnpackAlignment() const { return mUnpack.alignment; } |
| void setUnpackRowLength(GLint rowLength); |
| GLint getUnpackRowLength() const { return mUnpack.rowLength; } |
| void setUnpackImageHeight(GLint imageHeight); |
| GLint getUnpackImageHeight() const { return mUnpack.imageHeight; } |
| void setUnpackSkipImages(GLint skipImages); |
| GLint getUnpackSkipImages() const { return mUnpack.skipImages; } |
| void setUnpackSkipRows(GLint skipRows); |
| GLint getUnpackSkipRows() const { return mUnpack.skipRows; } |
| void setUnpackSkipPixels(GLint skipPixels); |
| GLint getUnpackSkipPixels() const { return mUnpack.skipPixels; } |
| const PixelUnpackState &getUnpackState() const { return mUnpack; } |
| PixelUnpackState &getUnpackState() { return mUnpack; } |
| |
| // Debug state |
| const Debug &getDebug() const { return mDebug; } |
| Debug &getDebug() { return mDebug; } |
| |
| // CHROMIUM_framebuffer_mixed_samples coverage modulation |
| void setCoverageModulation(GLenum components); |
| GLenum getCoverageModulation() const { return mCoverageModulation; } |
| |
| // CHROMIUM_path_rendering |
| void loadPathRenderingMatrix(GLenum matrixMode, const GLfloat *matrix); |
| const GLfloat *getPathRenderingMatrix(GLenum which) const; |
| void setPathStencilFunc(GLenum func, GLint ref, GLuint mask); |
| GLenum getPathStencilFunc() const { return mPathStencilFunc; } |
| GLint getPathStencilRef() const { return mPathStencilRef; } |
| GLuint getPathStencilMask() const { return mPathStencilMask; } |
| |
| // GL_EXT_sRGB_write_control |
| void setFramebufferSRGB(bool sRGB); |
| bool getFramebufferSRGB() const { return mFramebufferSRGB; } |
| |
| // GL_KHR_parallel_shader_compile |
| void setMaxShaderCompilerThreads(GLuint count); |
| GLuint getMaxShaderCompilerThreads() const { return mMaxShaderCompilerThreads; } |
| |
| // State query functions |
| void getBooleanv(GLenum pname, GLboolean *params); |
| void getFloatv(GLenum pname, GLfloat *params); |
| angle::Result getIntegerv(const Context *context, GLenum pname, GLint *params); |
| void getPointerv(const Context *context, GLenum pname, void **params) const; |
| void getIntegeri_v(GLenum target, GLuint index, GLint *data); |
| void getInteger64i_v(GLenum target, GLuint index, GLint64 *data); |
| void getBooleani_v(GLenum target, GLuint index, GLboolean *data); |
| |
| bool isRobustResourceInitEnabled() const { return mRobustResourceInit; } |
| |
| // Sets the dirty bit for the program executable. |
| angle::Result onProgramExecutableChange(const Context *context, Program *program); |
| |
| enum DirtyBitType |
| { |
| // Note: process draw framebuffer binding first, so that other dirty bits whose effect |
| // depend on the current draw framebuffer are not processed while the old framebuffer is |
| // still bound. |
| DIRTY_BIT_DRAW_FRAMEBUFFER_BINDING, |
| DIRTY_BIT_READ_FRAMEBUFFER_BINDING, |
| DIRTY_BIT_SCISSOR_TEST_ENABLED, |
| DIRTY_BIT_SCISSOR, |
| DIRTY_BIT_VIEWPORT, |
| DIRTY_BIT_DEPTH_RANGE, |
| DIRTY_BIT_BLEND_ENABLED, |
| DIRTY_BIT_BLEND_COLOR, |
| DIRTY_BIT_BLEND_FUNCS, |
| DIRTY_BIT_BLEND_EQUATIONS, |
| DIRTY_BIT_COLOR_MASK, |
| DIRTY_BIT_SAMPLE_ALPHA_TO_COVERAGE_ENABLED, |
| DIRTY_BIT_SAMPLE_COVERAGE_ENABLED, |
| DIRTY_BIT_SAMPLE_COVERAGE, |
| DIRTY_BIT_SAMPLE_MASK_ENABLED, |
| DIRTY_BIT_SAMPLE_MASK, |
| DIRTY_BIT_DEPTH_TEST_ENABLED, |
| DIRTY_BIT_DEPTH_FUNC, |
| DIRTY_BIT_DEPTH_MASK, |
| DIRTY_BIT_STENCIL_TEST_ENABLED, |
| DIRTY_BIT_STENCIL_FUNCS_FRONT, |
| DIRTY_BIT_STENCIL_FUNCS_BACK, |
| DIRTY_BIT_STENCIL_OPS_FRONT, |
| DIRTY_BIT_STENCIL_OPS_BACK, |
| DIRTY_BIT_STENCIL_WRITEMASK_FRONT, |
| DIRTY_BIT_STENCIL_WRITEMASK_BACK, |
| DIRTY_BIT_CULL_FACE_ENABLED, |
| DIRTY_BIT_CULL_FACE, |
| DIRTY_BIT_FRONT_FACE, |
| DIRTY_BIT_POLYGON_OFFSET_FILL_ENABLED, |
| DIRTY_BIT_POLYGON_OFFSET, |
| DIRTY_BIT_RASTERIZER_DISCARD_ENABLED, |
| DIRTY_BIT_LINE_WIDTH, |
| DIRTY_BIT_PRIMITIVE_RESTART_ENABLED, |
| DIRTY_BIT_CLEAR_COLOR, |
| DIRTY_BIT_CLEAR_DEPTH, |
| DIRTY_BIT_CLEAR_STENCIL, |
| DIRTY_BIT_UNPACK_STATE, |
| DIRTY_BIT_UNPACK_BUFFER_BINDING, |
| DIRTY_BIT_PACK_STATE, |
| DIRTY_BIT_PACK_BUFFER_BINDING, |
| DIRTY_BIT_DITHER_ENABLED, |
| DIRTY_BIT_GENERATE_MIPMAP_HINT, |
| DIRTY_BIT_SHADER_DERIVATIVE_HINT, |
| DIRTY_BIT_RENDERBUFFER_BINDING, |
| DIRTY_BIT_VERTEX_ARRAY_BINDING, |
| DIRTY_BIT_DRAW_INDIRECT_BUFFER_BINDING, |
| DIRTY_BIT_DISPATCH_INDIRECT_BUFFER_BINDING, |
| // TODO(jmadill): Fine-grained dirty bits for each index. |
| DIRTY_BIT_PROGRAM_BINDING, |
| DIRTY_BIT_PROGRAM_EXECUTABLE, |
| // TODO(jmadill): Fine-grained dirty bits for each texture/sampler. |
| DIRTY_BIT_SAMPLER_BINDINGS, |
| DIRTY_BIT_TEXTURE_BINDINGS, |
| DIRTY_BIT_IMAGE_BINDINGS, |
| DIRTY_BIT_TRANSFORM_FEEDBACK_BINDING, |
| DIRTY_BIT_UNIFORM_BUFFER_BINDINGS, |
| DIRTY_BIT_SHADER_STORAGE_BUFFER_BINDING, |
| DIRTY_BIT_ATOMIC_COUNTER_BUFFER_BINDING, |
| DIRTY_BIT_MULTISAMPLING, |
| DIRTY_BIT_SAMPLE_ALPHA_TO_ONE, |
| DIRTY_BIT_COVERAGE_MODULATION, // CHROMIUM_framebuffer_mixed_samples |
| DIRTY_BIT_PATH_RENDERING, |
| DIRTY_BIT_FRAMEBUFFER_SRGB, // GL_EXT_sRGB_write_control |
| DIRTY_BIT_CURRENT_VALUES, |
| DIRTY_BIT_PROVOKING_VERTEX, |
| DIRTY_BIT_INVALID, |
| DIRTY_BIT_MAX = DIRTY_BIT_INVALID, |
| }; |
| |
| static_assert(DIRTY_BIT_MAX <= 64, "State dirty bits must be capped at 64"); |
| |
| // TODO(jmadill): Consider storing dirty objects in a list instead of by binding. |
| enum DirtyObjectType |
| { |
| DIRTY_OBJECT_TEXTURES_INIT, |
| DIRTY_OBJECT_IMAGES_INIT, |
| DIRTY_OBJECT_READ_ATTACHMENTS, |
| DIRTY_OBJECT_DRAW_ATTACHMENTS, |
| DIRTY_OBJECT_READ_FRAMEBUFFER, |
| DIRTY_OBJECT_DRAW_FRAMEBUFFER, |
| DIRTY_OBJECT_VERTEX_ARRAY, |
| DIRTY_OBJECT_TEXTURES, // Top-level dirty bit. Also see mDirtyTextures. |
| DIRTY_OBJECT_IMAGES, // Top-level dirty bit. Also see mDirtyImages. |
| DIRTY_OBJECT_SAMPLERS, // Top-level dirty bit. Also see mDirtySamplers. |
| DIRTY_OBJECT_PROGRAM, |
| DIRTY_OBJECT_UNKNOWN, |
| DIRTY_OBJECT_MAX = DIRTY_OBJECT_UNKNOWN, |
| }; |
| |
| using DirtyBits = angle::BitSet<DIRTY_BIT_MAX>; |
| const DirtyBits &getDirtyBits() const { return mDirtyBits; } |
| void clearDirtyBits() { mDirtyBits.reset(); } |
| void clearDirtyBits(const DirtyBits &bitset) { mDirtyBits &= ~bitset; } |
| void setAllDirtyBits() |
| { |
| mDirtyBits.set(); |
| mDirtyCurrentValues.set(); |
| } |
| |
| using DirtyObjects = angle::BitSet<DIRTY_OBJECT_MAX>; |
| void clearDirtyObjects() { mDirtyObjects.reset(); } |
| void setAllDirtyObjects() { mDirtyObjects.set(); } |
| angle::Result syncDirtyObjects(const Context *context, const DirtyObjects &bitset); |
| angle::Result syncDirtyObject(const Context *context, GLenum target); |
| void setObjectDirty(GLenum target); |
| void setTextureDirty(size_t textureUnitIndex); |
| void setSamplerDirty(size_t samplerIndex); |
| |
| ANGLE_INLINE void setReadFramebufferDirty() |
| { |
| mDirtyObjects.set(DIRTY_OBJECT_READ_FRAMEBUFFER); |
| mDirtyObjects.set(DIRTY_OBJECT_READ_ATTACHMENTS); |
| } |
| |
| ANGLE_INLINE void setDrawFramebufferDirty() |
| { |
| mDirtyObjects.set(DIRTY_OBJECT_DRAW_FRAMEBUFFER); |
| mDirtyObjects.set(DIRTY_OBJECT_DRAW_ATTACHMENTS); |
| } |
| |
| // This actually clears the current value dirty bits. |
| // TODO(jmadill): Pass mutable dirty bits into Impl. |
| AttributesMask getAndResetDirtyCurrentValues() const; |
| |
| void setImageUnit(const Context *context, |
| size_t unit, |
| Texture *texture, |
| GLint level, |
| GLboolean layered, |
| GLint layer, |
| GLenum access, |
| GLenum format); |
| |
| const ImageUnit &getImageUnit(size_t unit) const { return mImageUnits[unit]; } |
| const ActiveTexturePointerArray &getActiveTexturesCache() const { return mActiveTexturesCache; } |
| ComponentTypeMask getCurrentValuesTypeMask() const { return mCurrentValuesTypeMask; } |
| |
| // "onActiveTextureChange" is called when a texture binding changes. |
| void onActiveTextureChange(const Context *context, size_t textureUnit); |
| |
| // "onActiveTextureStateChange" calls when the Texture itself changed but the binding did not. |
| void onActiveTextureStateChange(const Context *context, size_t textureUnit); |
| |
| void onImageStateChange(const Context *context, size_t unit); |
| |
| void onUniformBufferStateChange(size_t uniformBufferIndex); |
| |
| bool isCurrentTransformFeedback(const TransformFeedback *tf) const |
| { |
| return tf == mTransformFeedback.get(); |
| } |
| bool isCurrentVertexArray(const VertexArray *va) const { return va == mVertexArray; } |
| |
| GLES1State &gles1() { return mGLES1State; } |
| const GLES1State &gles1() const { return mGLES1State; } |
| |
| // Helpers for setting bound buffers. They should all have the same signature. |
| // Not meant to be called externally. Used for local helpers in State.cpp. |
| template <BufferBinding Target> |
| void setGenericBufferBindingWithBit(const Context *context, Buffer *buffer); |
| |
| template <BufferBinding Target> |
| void setGenericBufferBinding(const Context *context, Buffer *buffer); |
| |
| using BufferBindingSetter = void (State::*)(const Context *, Buffer *); |
| |
| ANGLE_INLINE bool validateSamplerFormats() const |
| { |
| return (mTexturesIncompatibleWithSamplers & mProgram->getActiveSamplersMask()).none(); |
| } |
| |
| ProvokingVertexConvention getProvokingVertex() const { return mProvokingVertex; } |
| void setProvokingVertex(ProvokingVertexConvention val) |
| { |
| mDirtyBits.set(State::DIRTY_BIT_PROVOKING_VERTEX); |
| mProvokingVertex = val; |
| } |
| |
| const OverlayType *getOverlay() const { return mOverlay; } |
| |
| // Not for general use. |
| const BufferManager &getBufferManagerForCapture() const { return *mBufferManager; } |
| const BoundBufferMap &getBoundBuffersForCapture() const { return mBoundBuffers; } |
| const TextureManager &getTextureManagerForCapture() const { return *mTextureManager; } |
| const TextureBindingMap &getBoundTexturesForCapture() const { return mSamplerTextures; } |
| const RenderbufferManager &getRenderbufferManagerForCapture() const |
| { |
| return *mRenderbufferManager; |
| } |
| const FramebufferManager &getFramebufferManagerForCapture() const |
| { |
| return *mFramebufferManager; |
| } |
| const ShaderProgramManager &getShaderProgramManagerForCapture() const |
| { |
| return *mShaderProgramManager; |
| } |
| |
| private: |
| friend class Context; |
| |
| void unsetActiveTextures(ActiveTextureMask textureMask); |
| void updateActiveTexture(const Context *context, size_t textureIndex, Texture *texture); |
| void updateActiveTextureState(const Context *context, |
| size_t textureIndex, |
| const Sampler *sampler, |
| Texture *texture); |
| Texture *getTextureForActiveSampler(TextureType type, size_t index); |
| |
| // Functions to synchronize dirty states |
| angle::Result syncTexturesInit(const Context *context); |
| angle::Result syncImagesInit(const Context *context); |
| angle::Result syncReadAttachments(const Context *context); |
| angle::Result syncDrawAttachments(const Context *context); |
| angle::Result syncReadFramebuffer(const Context *context); |
| angle::Result syncDrawFramebuffer(const Context *context); |
| angle::Result syncVertexArray(const Context *context); |
| angle::Result syncTextures(const Context *context); |
| angle::Result syncImages(const Context *context); |
| angle::Result syncSamplers(const Context *context); |
| angle::Result syncProgram(const Context *context); |
| |
| using DirtyObjectHandler = angle::Result (State::*)(const Context *context); |
| static constexpr DirtyObjectHandler kDirtyObjectHandlers[DIRTY_OBJECT_MAX] = { |
| &State::syncTexturesInit, &State::syncImagesInit, &State::syncReadAttachments, |
| &State::syncDrawAttachments, &State::syncReadFramebuffer, &State::syncDrawFramebuffer, |
| &State::syncVertexArray, &State::syncTextures, &State::syncImages, |
| &State::syncSamplers, &State::syncProgram, |
| }; |
| |
| // Robust init must happen before Framebuffer init for the Vulkan back-end. |
| static_assert(DIRTY_OBJECT_TEXTURES_INIT < DIRTY_OBJECT_DRAW_FRAMEBUFFER, "init order"); |
| static_assert(DIRTY_OBJECT_IMAGES_INIT < DIRTY_OBJECT_DRAW_FRAMEBUFFER, "init order"); |
| static_assert(DIRTY_OBJECT_DRAW_ATTACHMENTS < DIRTY_OBJECT_DRAW_FRAMEBUFFER, "init order"); |
| static_assert(DIRTY_OBJECT_READ_ATTACHMENTS < DIRTY_OBJECT_READ_FRAMEBUFFER, "init order"); |
| |
| static_assert(DIRTY_OBJECT_TEXTURES_INIT == 0, "check DIRTY_OBJECT_TEXTURES_INIT index"); |
| static_assert(DIRTY_OBJECT_IMAGES_INIT == 1, "check DIRTY_OBJECT_IMAGES_INIT index"); |
| static_assert(DIRTY_OBJECT_READ_ATTACHMENTS == 2, "check DIRTY_OBJECT_READ_ATTACHMENTS index"); |
| static_assert(DIRTY_OBJECT_DRAW_ATTACHMENTS == 3, "check DIRTY_OBJECT_DRAW_ATTACHMENTS index"); |
| static_assert(DIRTY_OBJECT_READ_FRAMEBUFFER == 4, "check DIRTY_OBJECT_READ_FRAMEBUFFER index"); |
| static_assert(DIRTY_OBJECT_DRAW_FRAMEBUFFER == 5, "check DIRTY_OBJECT_DRAW_FRAMEBUFFER index"); |
| static_assert(DIRTY_OBJECT_VERTEX_ARRAY == 6, "check DIRTY_OBJECT_VERTEX_ARRAY index"); |
| static_assert(DIRTY_OBJECT_TEXTURES == 7, "check DIRTY_OBJECT_TEXTURES index"); |
| static_assert(DIRTY_OBJECT_IMAGES == 8, "check DIRTY_OBJECT_IMAGES index"); |
| static_assert(DIRTY_OBJECT_SAMPLERS == 9, "check DIRTY_OBJECT_SAMPLERS index"); |
| static_assert(DIRTY_OBJECT_PROGRAM == 10, "check DIRTY_OBJECT_PROGRAM index"); |
| |
| // Dispatch table for buffer update functions. |
| static const angle::PackedEnumMap<BufferBinding, BufferBindingSetter> kBufferSetters; |
| |
| int mID; |
| |
| EGLenum mClientType; |
| EGLenum mContextPriority; |
| Version mClientVersion; |
| ContextID mContext; |
| |
| // Caps to use for validation |
| Caps mCaps; |
| TextureCapsMap mTextureCaps; |
| Extensions mExtensions; |
| Limitations mLimitations; |
| |
| // Resource managers. |
| BufferManager *mBufferManager; |
| ShaderProgramManager *mShaderProgramManager; |
| TextureManager *mTextureManager; |
| RenderbufferManager *mRenderbufferManager; |
| SamplerManager *mSamplerManager; |
| SyncManager *mSyncManager; |
| PathManager *mPathManager; |
| FramebufferManager *mFramebufferManager; |
| ProgramPipelineManager *mProgramPipelineManager; |
| MemoryObjectManager *mMemoryObjectManager; |
| SemaphoreManager *mSemaphoreManager; |
| |
| // Cached values from Context's caps |
| GLuint mMaxDrawBuffers; |
| GLuint mMaxCombinedTextureImageUnits; |
| |
| ColorF mColorClearValue; |
| GLfloat mDepthClearValue; |
| int mStencilClearValue; |
| |
| RasterizerState mRasterizer; |
| bool mScissorTest; |
| Rectangle mScissor; |
| |
| BlendState mBlend; |
| ColorF mBlendColor; |
| bool mSampleCoverage; |
| GLfloat mSampleCoverageValue; |
| bool mSampleCoverageInvert; |
| bool mSampleMask; |
| GLuint mMaxSampleMaskWords; |
| std::array<GLbitfield, MAX_SAMPLE_MASK_WORDS> mSampleMaskValues; |
| |
| DepthStencilState mDepthStencil; |
| GLint mStencilRef; |
| GLint mStencilBackRef; |
| |
| GLfloat mLineWidth; |
| |
| GLenum mGenerateMipmapHint; |
| GLenum mFragmentShaderDerivativeHint; |
| |
| const bool mBindGeneratesResource; |
| const bool mClientArraysEnabled; |
| |
| Rectangle mViewport; |
| float mNearZ; |
| float mFarZ; |
| |
| Framebuffer *mReadFramebuffer; |
| Framebuffer *mDrawFramebuffer; |
| BindingPointer<Renderbuffer> mRenderbuffer; |
| Program *mProgram; |
| BindingPointer<ProgramPipeline> mProgramPipeline; |
| |
| // GL_ANGLE_provoking_vertex |
| ProvokingVertexConvention mProvokingVertex; |
| |
| using VertexAttribVector = std::vector<VertexAttribCurrentValueData>; |
| VertexAttribVector mVertexAttribCurrentValues; // From glVertexAttrib |
| VertexArray *mVertexArray; |
| ComponentTypeMask mCurrentValuesTypeMask; |
| |
| // Texture and sampler bindings |
| size_t mActiveSampler; // Active texture unit selector - GL_TEXTURE0 |
| |
| TextureBindingMap mSamplerTextures; |
| |
| // Texture Completeness Caching |
| // ---------------------------- |
| // The texture completeness cache uses dirty bits to avoid having to scan the list of textures |
| // each draw call. This gl::State class implements angle::Observer interface. When subject |
| // Textures have state changes, messages reach 'State' (also any observing Framebuffers) via the |
| // onSubjectStateChange method (above). This then invalidates the completeness cache. |
| // |
| // Note this requires that we also invalidate the completeness cache manually on events like |
| // re-binding textures/samplers or a change in the program. For more information see the |
| // Observer.h header and the design doc linked there. |
| |
| // A cache of complete textures. nullptr indicates unbound or incomplete. |
| // Don't use BindingPointer because this cache is only valid within a draw call. |
| // Also stores a notification channel to the texture itself to handle texture change events. |
| ActiveTexturePointerArray mActiveTexturesCache; |
| std::vector<angle::ObserverBinding> mCompleteTextureBindings; |
| |
| ActiveTextureMask mTexturesIncompatibleWithSamplers; |
| |
| SamplerBindingVector mSamplers; |
| |
| // It would be nice to merge the image and observer binding. Same for textures. |
| std::vector<ImageUnit> mImageUnits; |
| |
| using ActiveQueryMap = angle::PackedEnumMap<QueryType, BindingPointer<Query>>; |
| ActiveQueryMap mActiveQueries; |
| |
| // Stores the currently bound buffer for each binding point. It has an entry for the element |
| // array buffer but it should not be used. Instead this bind point is owned by the current |
| // vertex array object. |
| BoundBufferMap mBoundBuffers; |
| |
| using BufferVector = std::vector<OffsetBindingPointer<Buffer>>; |
| BufferVector mUniformBuffers; |
| BufferVector mAtomicCounterBuffers; |
| BufferVector mShaderStorageBuffers; |
| |
| BindingPointer<TransformFeedback> mTransformFeedback; |
| |
| PixelUnpackState mUnpack; |
| PixelPackState mPack; |
| |
| bool mPrimitiveRestart; |
| |
| Debug mDebug; |
| |
| bool mMultiSampling; |
| bool mSampleAlphaToOne; |
| |
| GLenum mCoverageModulation; |
| |
| // CHROMIUM_path_rendering |
| GLfloat mPathMatrixMV[16]; |
| GLfloat mPathMatrixProj[16]; |
| GLenum mPathStencilFunc; |
| GLint mPathStencilRef; |
| GLuint mPathStencilMask; |
| |
| // GL_EXT_sRGB_write_control |
| bool mFramebufferSRGB; |
| |
| // GL_ANGLE_robust_resource_intialization |
| const bool mRobustResourceInit; |
| |
| // GL_ANGLE_program_cache_control |
| const bool mProgramBinaryCacheEnabled; |
| |
| // GL_ANGLE_webgl_compatibility |
| bool mTextureRectangleEnabled; |
| |
| // GL_KHR_parallel_shader_compile |
| GLuint mMaxShaderCompilerThreads; |
| |
| // GLES1 emulation: state specific to GLES1 |
| GLES1State mGLES1State; |
| |
| DirtyBits mDirtyBits; |
| DirtyObjects mDirtyObjects; |
| mutable AttributesMask mDirtyCurrentValues; |
| ActiveTextureMask mDirtyTextures; |
| ActiveTextureMask mDirtySamplers; |
| ImageUnitMask mDirtyImages; |
| |
| // The Overlay object, used by the backend to render the overlay. |
| const OverlayType *mOverlay; |
| }; |
| |
| ANGLE_INLINE angle::Result State::syncDirtyObjects(const Context *context, |
| const DirtyObjects &bitset) |
| { |
| const DirtyObjects &dirtyObjects = mDirtyObjects & bitset; |
| |
| for (size_t dirtyObject : dirtyObjects) |
| { |
| ANGLE_TRY((this->*kDirtyObjectHandlers[dirtyObject])(context)); |
| } |
| |
| mDirtyObjects &= ~dirtyObjects; |
| return angle::Result::Continue; |
| } |
| |
| } // namespace gl |
| |
| #endif // LIBANGLE_STATE_H_ |
