Adding upstream version 110.0.1.upstream/110.0.1upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 1173 insertions, 0 deletions

diff --git a/gfx/angle/checkout/src/libANGLE/State.h b/gfx/angle/checkout/src/libANGLE/State.h
new file mode 100644
index 0000000000..75c38e2d9c
--- /dev/null
+++ b/gfx/angle/checkout/src/libANGLE/State.h
@@ -0,0 +1,1173 @@
+//
+// 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/ProgramExecutable.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 egl
+{
+class ShareGroup;
+}  // namespace egl
+
+namespace gl
+{
+class BufferManager;
+struct Caps;
+class Context;
+class FramebufferManager;
+class MemoryObjectManager;
+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);
+
+template <typename T>
+using BufferBindingMap     = angle::PackedEnumMap<BufferBinding, T>;
+using BoundBufferMap       = BufferBindingMap<BindingPointer<Buffer>>;
+using SamplerBindingVector = std::vector<BindingPointer<Sampler>>;
+using TextureBindingVector = std::vector<BindingPointer<Texture>>;
+using TextureBindingMap    = angle::PackedEnumMap<TextureType, TextureBindingVector>;
+using ActiveQueryMap       = angle::PackedEnumMap<QueryType, BindingPointer<Query>>;
+using BufferVector         = std::vector<OffsetBindingPointer<Buffer>>;
+
+class ActiveTexturesCache final : angle::NonCopyable
+{
+  public:
+    ActiveTexturesCache();
+    ~ActiveTexturesCache();
+
+    Texture *operator[](size_t textureIndex) const { return mTextures[textureIndex]; }
+
+    void clear();
+    void set(size_t textureIndex, Texture *texture);
+    void reset(size_t textureIndex);
+    bool empty() const;
+
+  private:
+    ActiveTextureArray<Texture *> mTextures;
+};
+
+class State : angle::NonCopyable
+{
+  public:
+    State(const State *shareContextState,
+          egl::ShareGroup *shareGroup,
+          TextureManager *shareTextures,
+          SemaphoreManager *shareSemaphores,
+          const OverlayType *overlay,
+          const EGLenum clientType,
+          const Version &clientVersion,
+          bool debug,
+          bool bindGeneratesResource,
+          bool clientArraysEnabled,
+          bool robustResourceInit,
+          bool programBinaryCacheEnabled,
+          EGLenum contextPriority);
+    ~State();
+
+    void initialize(Context *context);
+    void reset(const Context *context);
+
+    // Getters
+    ContextID getContextID() const { return mID; }
+    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; }
+    egl::ShareGroup *getShareGroup() const { return mShareGroup; }
+
+    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
+    bool allActiveDrawBufferChannelsMasked() const;
+    bool anyActiveDrawBufferChannelMasked() const;
+    const RasterizerState &getRasterizerState() const;
+    const BlendState &getBlendState() const { return mBlendState; }
+    const BlendStateExt &getBlendStateExt() const { return mBlendStateExt; }
+    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 setColorMaskIndexed(bool red, bool green, bool blue, bool alpha, GLuint index);
+    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; }
+    bool isDepthWriteEnabled() const { return mDepthStencil.depthTest && mDepthStencil.depthMask; }
+    void setDepthTest(bool enabled);
+    void setDepthFunc(GLenum depthFunc);
+    void setDepthRange(float zNear, float zFar);
+    float getNearPlane() const { return mNearZ; }
+    float getFarPlane() const { return mFarZ; }
+
+    // Clip control extension
+    void setClipControl(GLenum origin, GLenum depth);
+    bool isClipControlDepthZeroToOne() const { return mClipControlDepth == GL_ZERO_TO_ONE_EXT; }
+    gl::ClipSpaceOrigin getClipSpaceOrigin() const
+    {
+        return mClipControlOrigin == GL_UPPER_LEFT_EXT ? ClipSpaceOrigin::UpperLeft
+                                                       : ClipSpaceOrigin::LowerLeft;
+    }
+
+    // Blend state manipulation
+    bool isBlendEnabled() const { return mBlendStateExt.mEnabledMask.test(0); }
+    bool isBlendEnabledIndexed(GLuint index) const
+    {
+        ASSERT(static_cast<size_t>(index) < mBlendStateExt.mMaxDrawBuffers);
+        return mBlendStateExt.mEnabledMask.test(index);
+    }
+    DrawBufferMask getBlendEnabledDrawBufferMask() const { return mBlendStateExt.mEnabledMask; }
+    void setBlend(bool enabled);
+    void setBlendIndexed(bool enabled, GLuint index);
+    void setBlendFactors(GLenum sourceRGB, GLenum destRGB, GLenum sourceAlpha, GLenum destAlpha);
+    void setBlendFactorsIndexed(GLenum sourceRGB,
+                                GLenum destRGB,
+                                GLenum sourceAlpha,
+                                GLenum destAlpha,
+                                GLuint index);
+    void setBlendColor(float red, float green, float blue, float alpha);
+    void setBlendEquation(GLenum rgbEquation, GLenum alphaEquation);
+    void setBlendEquationIndexed(GLenum rgbEquation, GLenum alphaEquation, GLuint index);
+    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 mSampleAlphaToCoverage; }
+    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];
+    }
+    std::array<GLbitfield, MAX_SAMPLE_MASK_WORDS> getSampleMaskValues() const
+    {
+        return mSampleMaskValues;
+    }
+    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; }
+
+    void setSampleShading(bool enabled);
+    bool isSampleShadingEnabled() const { return mIsSampleShadingEnabled; }
+    void setMinSampleShading(float value);
+    float getMinSampleShading() const { return mMinSampleShading; }
+
+    // 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 mRasterizer.dither; }
+    void setDither(bool enabled);
+
+    // Generic state toggle & query
+    void setEnableFeature(GLenum feature, bool enabled);
+    void setEnableFeatureIndexed(GLenum feature, bool enabled, GLuint index);
+    bool getEnableFeature(GLenum feature) const;
+    bool getEnableFeatureIndexed(GLenum feature, GLuint index) const;
+
+    // Line width state setter
+    void setLineWidth(GLfloat width);
+    float getLineWidth() const { return mLineWidth; }
+
+    // Hint setters
+    void setGenerateMipmapHint(GLenum hint);
+    GLenum getGenerateMipmapHint() const;
+    void setTextureFilteringHint(GLenum hint);
+    GLenum getTextureFilteringHint() const;
+    GLenum getFragmentShaderDerivativeHint() const { return mFragmentShaderDerivativeHint; }
+    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 invalidateTextureBindings(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(); }
+
+    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; }
+    Framebuffer *getDefaultFramebuffer() const;
+
+    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;
+    }
+
+    // If both a Program and a ProgramPipeline are bound, the Program will
+    // always override the ProgramPipeline.
+    const ProgramExecutable *getProgramExecutable() const { return mExecutable; }
+
+    // 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;
+    }
+
+    ProgramPipeline *getProgramPipeline() const { return mProgramPipeline.get(); }
+
+    // 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
+    angle::Result useProgramStages(const Context *context,
+                                   ProgramPipeline *programPipeline,
+                                   GLbitfield stages,
+                                   Program *shaderProgram);
+    angle::Result 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(); }
+
+    ANGLE_INLINE bool hasValidAtomicCounterBuffer() const
+    {
+        return mBoundAtomicCounterBuffersMask.any();
+    }
+
+    const OffsetBindingPointer<Buffer> &getIndexedUniformBuffer(size_t index) const;
+    const OffsetBindingPointer<Buffer> &getIndexedAtomicCounterBuffer(size_t index) const;
+    const OffsetBindingPointer<Buffer> &getIndexedShaderStorageBuffer(size_t index) const;
+
+    const angle::BitSet<gl::IMPLEMENTATION_MAX_UNIFORM_BUFFER_BINDINGS> &getUniformBuffersMask()
+        const
+    {
+        return mBoundUniformBuffersMask;
+    }
+    const angle::BitSet<gl::IMPLEMENTATION_MAX_ATOMIC_COUNTER_BUFFER_BINDINGS>
+        &getAtomicCounterBuffersMask() const
+    {
+        return mBoundAtomicCounterBuffersMask;
+    }
+    const angle::BitSet<gl::IMPLEMENTATION_MAX_SHADER_STORAGE_BUFFER_BINDINGS>
+        &getShaderStorageBuffersMask() const
+    {
+        return mBoundShaderStorageBuffersMask;
+    }
+
+    // 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; }
+
+    // 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; }
+
+    // GL_EXT_tessellation_shader
+    void setPatchVertices(GLuint value);
+    GLuint getPatchVertices() const { return mPatchVertices; }
+
+    // State query functions
+    void getBooleanv(GLenum pname, GLboolean *params) const;
+    void getFloatv(GLenum pname, GLfloat *params) const;
+    angle::Result getIntegerv(const Context *context, GLenum pname, GLint *params) const;
+    void getPointerv(const Context *context, GLenum pname, void **params) const;
+    void getIntegeri_v(GLenum target, GLuint index, GLint *data) const;
+    void getInteger64i_v(GLenum target, GLuint index, GLint64 *data) const;
+    void getBooleani_v(GLenum target, GLuint index, GLboolean *data) const;
+
+    bool isRobustResourceInitEnabled() const { return mRobustResourceInit; }
+
+    // Sets the dirty bit for the program executable.
+    angle::Result onProgramExecutableChange(const Context *context, Program *program);
+    // Sets the dirty bit for the program pipeline executable.
+    angle::Result onProgramPipelineExecutableChange(const Context *context,
+                                                    ProgramPipeline *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_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,  // Must be before DIRTY_BIT_PROGRAM_EXECUTABLE
+        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_FRAMEBUFFER_SRGB_WRITE_CONTROL_MODE,  // GL_EXT_sRGB_write_control
+        DIRTY_BIT_CURRENT_VALUES,
+        DIRTY_BIT_PROVOKING_VERTEX,
+        DIRTY_BIT_SAMPLE_SHADING,
+        DIRTY_BIT_PATCH_VERTICES,
+        DIRTY_BIT_EXTENDED,  // clip distances, mipmap generation hint, derivative hint,
+                             // EXT_clip_control
+        DIRTY_BIT_INVALID,
+        DIRTY_BIT_MAX = DIRTY_BIT_INVALID,
+    };
+
+    static_assert(DIRTY_BIT_MAX <= 64, "State dirty bits must be capped at 64");
+
+    enum ExtendedDirtyBitType
+    {
+        EXTENDED_DIRTY_BIT_CLIP_CONTROL,            // EXT_clip_control
+        EXTENDED_DIRTY_BIT_CLIP_DISTANCES,          // clip distances
+        EXTENDED_DIRTY_BIT_MIPMAP_GENERATION_HINT,  // mipmap generation hint
+        EXTENDED_DIRTY_BIT_SHADER_DERIVATIVE_HINT,  // shader derivative hint
+        EXTENDED_DIRTY_BIT_INVALID,
+        EXTENDED_DIRTY_BIT_MAX = EXTENDED_DIRTY_BIT_INVALID,
+    };
+
+    static_assert(EXTENDED_DIRTY_BIT_MAX <= 32, "State extended dirty bits must be capped at 32");
+
+    // TODO(jmadill): Consider storing dirty objects in a list instead of by binding.
+    enum DirtyObjectType
+    {
+        DIRTY_OBJECT_ACTIVE_TEXTURES,  // Top-level dirty bit. Also see mDirtyActiveTextures.
+        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 ExtendedDirtyBits = angle::BitSet32<EXTENDED_DIRTY_BIT_MAX>;
+    const ExtendedDirtyBits &getExtendedDirtyBits() const { return mExtendedDirtyBits; }
+    // TODO(https://anglebug.com/5631): Handle extended dirty bits on non-vulkan backends
+    ExtendedDirtyBits getAndResetExtendedDirtyBits() const;
+    void clearExtendedDirtyBits() { mExtendedDirtyBits.reset(); }
+
+    using DirtyObjects = angle::BitSet<DIRTY_OBJECT_MAX>;
+    void clearDirtyObjects() { mDirtyObjects.reset(); }
+    void setAllDirtyObjects() { mDirtyObjects.set(); }
+    angle::Result syncDirtyObjects(const Context *context,
+                                   const DirtyObjects &bitset,
+                                   Command command);
+    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 ActiveTexturesCache &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" is called when the Texture 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 (!mExecutable || !(mTexturesIncompatibleWithSamplers.intersects(
+                                    mExecutable->getActiveSamplersMask())));
+    }
+
+    ProvokingVertexConvention getProvokingVertex() const { return mProvokingVertex; }
+    void setProvokingVertex(ProvokingVertexConvention val)
+    {
+        mDirtyBits.set(State::DIRTY_BIT_PROVOKING_VERTEX);
+        mProvokingVertex = val;
+    }
+
+    ANGLE_INLINE void setReadFramebufferBindingDirty()
+    {
+        mDirtyBits.set(State::DIRTY_BIT_READ_FRAMEBUFFER_BINDING);
+    }
+
+    ANGLE_INLINE void setDrawFramebufferBindingDirty()
+    {
+        mDirtyBits.set(State::DIRTY_BIT_DRAW_FRAMEBUFFER_BINDING);
+    }
+
+    using ClipDistanceEnableBits = angle::BitSet32<IMPLEMENTATION_MAX_CLIP_DISTANCES>;
+    const ClipDistanceEnableBits &getEnabledClipDistances() const { return mClipDistancesEnabled; }
+    void setClipDistanceEnable(int idx, bool enable);
+
+    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;
+    }
+    const SyncManager &getSyncManagerForCapture() const { return *mSyncManager; }
+    const SamplerManager &getSamplerManagerForCapture() const { return *mSamplerManager; }
+    const SamplerBindingVector &getSamplerBindingsForCapture() const { return mSamplers; }
+
+    const ActiveQueryMap &getActiveQueriesForCapture() const { return mActiveQueries; }
+
+    bool hasConstantAlphaBlendFunc() const
+    {
+        return (mBlendFuncConstantAlphaDrawBuffers & mBlendStateExt.mEnabledMask).any();
+    }
+
+    bool hasSimultaneousConstantColorAndAlphaBlendFunc() const
+    {
+        return (mBlendFuncConstantColorDrawBuffers & mBlendStateExt.mEnabledMask).any() &&
+               hasConstantAlphaBlendFunc();
+    }
+
+    bool noSimultaneousConstantColorAndAlphaBlendFunc() const
+    {
+        return mNoSimultaneousConstantColorAndAlphaBlendFunc;
+    }
+
+    bool canEnableEarlyFragmentTestsOptimization() const
+    {
+        return !isSampleAlphaToCoverageEnabled();
+    }
+
+    const BufferVector &getOffsetBindingPointerUniformBuffers() const { return mUniformBuffers; }
+
+    const BufferVector &getOffsetBindingPointerAtomicCounterBuffers() const
+    {
+        return mAtomicCounterBuffers;
+    }
+
+    const BufferVector &getOffsetBindingPointerShaderStorageBuffers() const
+    {
+        return mShaderStorageBuffers;
+    }
+
+    ActiveTextureMask getTexturesIncompatibleWithSamplers() const
+    {
+        return mTexturesIncompatibleWithSamplers;
+    }
+
+    bool isProgramBinaryCacheEnabled() const { return mProgramBinaryCacheEnabled; }
+
+    bool isTextureRectangleEnabled() const { return mTextureRectangleEnabled; }
+
+    DrawBufferMask getBlendFuncConstantAlphaDrawBuffers() const
+    {
+        return mBlendFuncConstantAlphaDrawBuffers;
+    }
+
+    DrawBufferMask getBlendFuncConstantColorDrawBuffers() const
+    {
+        return mBlendFuncConstantColorDrawBuffers;
+    }
+
+    const std::vector<ImageUnit> &getImageUnits() const { return mImageUnits; }
+
+    const ProgramPipelineManager *getProgramPipelineManagerForCapture() const
+    {
+        return mProgramPipelineManager;
+    }
+
+  private:
+    friend class Context;
+
+    void unsetActiveTextures(const ActiveTextureMask &textureMask);
+    void setActiveTextureDirty(size_t textureIndex, Texture *texture);
+    void updateTextureBinding(const Context *context, size_t textureIndex, Texture *texture);
+    void updateActiveTextureStateOnSync(const Context *context,
+                                        size_t textureIndex,
+                                        const Sampler *sampler,
+                                        Texture *texture);
+    Texture *getTextureForActiveSampler(TextureType type, size_t index);
+
+    bool hasConstantColor(GLenum sourceRGB, GLenum destRGB) const;
+    bool hasConstantAlpha(GLenum sourceRGB, GLenum destRGB) const;
+
+    // Functions to synchronize dirty states
+    angle::Result syncActiveTextures(const Context *context, Command command);
+    angle::Result syncTexturesInit(const Context *context, Command command);
+    angle::Result syncImagesInit(const Context *context, Command command);
+    angle::Result syncReadAttachments(const Context *context, Command command);
+    angle::Result syncDrawAttachments(const Context *context, Command command);
+    angle::Result syncReadFramebuffer(const Context *context, Command command);
+    angle::Result syncDrawFramebuffer(const Context *context, Command command);
+    angle::Result syncVertexArray(const Context *context, Command command);
+    angle::Result syncTextures(const Context *context, Command command);
+    angle::Result syncImages(const Context *context, Command command);
+    angle::Result syncSamplers(const Context *context, Command command);
+    angle::Result syncProgram(const Context *context, Command command);
+
+    using DirtyObjectHandler = angle::Result (State::*)(const Context *context, Command command);
+    static constexpr DirtyObjectHandler kDirtyObjectHandlers[DIRTY_OBJECT_MAX] = {
+        &State::syncActiveTextures,  &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_ACTIVE_TEXTURES < DIRTY_OBJECT_TEXTURES_INIT, "init order");
+    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_ACTIVE_TEXTURES == 0, "check DIRTY_OBJECT_ACTIVE_TEXTURES index");
+    static_assert(DIRTY_OBJECT_TEXTURES_INIT == 1, "check DIRTY_OBJECT_TEXTURES_INIT index");
+    static_assert(DIRTY_OBJECT_IMAGES_INIT == 2, "check DIRTY_OBJECT_IMAGES_INIT index");
+    static_assert(DIRTY_OBJECT_READ_ATTACHMENTS == 3, "check DIRTY_OBJECT_READ_ATTACHMENTS index");
+    static_assert(DIRTY_OBJECT_DRAW_ATTACHMENTS == 4, "check DIRTY_OBJECT_DRAW_ATTACHMENTS index");
+    static_assert(DIRTY_OBJECT_READ_FRAMEBUFFER == 5, "check DIRTY_OBJECT_READ_FRAMEBUFFER index");
+    static_assert(DIRTY_OBJECT_DRAW_FRAMEBUFFER == 6, "check DIRTY_OBJECT_DRAW_FRAMEBUFFER index");
+    static_assert(DIRTY_OBJECT_VERTEX_ARRAY == 7, "check DIRTY_OBJECT_VERTEX_ARRAY index");
+    static_assert(DIRTY_OBJECT_TEXTURES == 8, "check DIRTY_OBJECT_TEXTURES index");
+    static_assert(DIRTY_OBJECT_IMAGES == 9, "check DIRTY_OBJECT_IMAGES index");
+    static_assert(DIRTY_OBJECT_SAMPLERS == 10, "check DIRTY_OBJECT_SAMPLERS index");
+    static_assert(DIRTY_OBJECT_PROGRAM == 11, "check DIRTY_OBJECT_PROGRAM index");
+
+    // Dispatch table for buffer update functions.
+    static const angle::PackedEnumMap<BufferBinding, BufferBindingSetter> kBufferSetters;
+
+    ContextID mID;
+
+    EGLenum mClientType;
+    EGLenum mContextPriority;
+    Version mClientVersion;
+
+    // Caps to use for validation
+    Caps mCaps;
+    TextureCapsMap mTextureCaps;
+    Extensions mExtensions;
+    Limitations mLimitations;
+
+    egl::ShareGroup *mShareGroup;
+
+    // Resource managers.
+    BufferManager *mBufferManager;
+    ShaderProgramManager *mShaderProgramManager;
+    TextureManager *mTextureManager;
+    RenderbufferManager *mRenderbufferManager;
+    SamplerManager *mSamplerManager;
+    SyncManager *mSyncManager;
+    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 mBlendState;  // Buffer zero blend state legacy struct
+    BlendStateExt mBlendStateExt;
+    ColorF mBlendColor;
+    bool mSampleAlphaToCoverage;
+    bool mSampleCoverage;
+    GLfloat mSampleCoverageValue;
+    bool mSampleCoverageInvert;
+    bool mSampleMask;
+    GLuint mMaxSampleMaskWords;
+    std::array<GLbitfield, MAX_SAMPLE_MASK_WORDS> mSampleMaskValues;
+    bool mIsSampleShadingEnabled;
+    float mMinSampleShading;
+
+    DepthStencilState mDepthStencil;
+    GLint mStencilRef;
+    GLint mStencilBackRef;
+
+    GLfloat mLineWidth;
+
+    GLenum mGenerateMipmapHint;
+    GLenum mTextureFilteringHint;
+    GLenum mFragmentShaderDerivativeHint;
+
+    const bool mBindGeneratesResource;
+    const bool mClientArraysEnabled;
+
+    Rectangle mViewport;
+    float mNearZ;
+    float mFarZ;
+
+    GLenum mClipControlOrigin;
+    GLenum mClipControlDepth;
+
+    Framebuffer *mReadFramebuffer;
+    Framebuffer *mDrawFramebuffer;
+    BindingPointer<Renderbuffer> mRenderbuffer;
+    Program *mProgram;
+    BindingPointer<ProgramPipeline> mProgramPipeline;
+    ProgramExecutable *mExecutable;
+
+    // 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;
+
+    // Active Textures Cache
+    // ---------------------
+    // The active textures cache gives ANGLE components access to a complete array of textures
+    // on a draw call. gl::State implements angle::Observer and watches gl::Texture for state
+    // changes via the onSubjectStateChange method above. We update the cache before draws.
+    // See Observer.h and the design doc linked there for more info on Subject/Observer events.
+    //
+    // On state change events (re-binding textures, samplers, programs etc) we clear the cache
+    // and flag dirty bits. nullptr indicates unbound or incomplete.
+    ActiveTexturesCache 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;
+
+    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;
+
+    BufferVector mUniformBuffers;
+    BufferVector mAtomicCounterBuffers;
+    BufferVector mShaderStorageBuffers;
+
+    angle::BitSet<gl::IMPLEMENTATION_MAX_UNIFORM_BUFFER_BINDINGS> mBoundUniformBuffersMask;
+    angle::BitSet<gl::IMPLEMENTATION_MAX_ATOMIC_COUNTER_BUFFER_BINDINGS>
+        mBoundAtomicCounterBuffersMask;
+    angle::BitSet<gl::IMPLEMENTATION_MAX_SHADER_STORAGE_BUFFER_BINDINGS>
+        mBoundShaderStorageBuffersMask;
+
+    BindingPointer<TransformFeedback> mTransformFeedback;
+
+    PixelUnpackState mUnpack;
+    PixelPackState mPack;
+
+    bool mPrimitiveRestart;
+
+    Debug mDebug;
+
+    bool mMultiSampling;
+    bool mSampleAlphaToOne;
+
+    GLenum mCoverageModulation;
+
+    // GL_EXT_sRGB_write_control
+    bool mFramebufferSRGB;
+
+    // GL_ANGLE_robust_resource_initialization
+    const bool mRobustResourceInit;
+
+    // GL_ANGLE_program_cache_control
+    const bool mProgramBinaryCacheEnabled;
+
+    // GL_ANGLE_webgl_compatibility
+    bool mTextureRectangleEnabled;
+
+    // GL_KHR_parallel_shader_compile
+    GLuint mMaxShaderCompilerThreads;
+
+    // GL_APPLE_clip_distance/GL_EXT_clip_cull_distance
+    ClipDistanceEnableBits mClipDistancesEnabled;
+
+    // GL_EXT_tessellation_shader
+    GLuint mPatchVertices;
+
+    // GLES1 emulation: state specific to GLES1
+    GLES1State mGLES1State;
+
+    DirtyBits mDirtyBits;
+    mutable ExtendedDirtyBits mExtendedDirtyBits;
+    DirtyObjects mDirtyObjects;
+    mutable AttributesMask mDirtyCurrentValues;
+    ActiveTextureMask mDirtyActiveTextures;
+    ActiveTextureMask mDirtyTextures;
+    ActiveTextureMask mDirtySamplers;
+    ImageUnitMask mDirtyImages;
+
+    // The Overlay object, used by the backend to render the overlay.
+    const OverlayType *mOverlay;
+
+    // OES_draw_buffers_indexed
+    DrawBufferMask mBlendFuncConstantAlphaDrawBuffers;
+    DrawBufferMask mBlendFuncConstantColorDrawBuffers;
+    bool mNoSimultaneousConstantColorAndAlphaBlendFunc;
+};
+
+ANGLE_INLINE angle::Result State::syncDirtyObjects(const Context *context,
+                                                   const DirtyObjects &bitset,
+                                                   Command command)
+{
+    const DirtyObjects &dirtyObjects = mDirtyObjects & bitset;
+
+    for (size_t dirtyObject : dirtyObjects)
+    {
+        ANGLE_TRY((this->*kDirtyObjectHandlers[dirtyObject])(context, command));
+    }
+
+    mDirtyObjects &= ~dirtyObjects;
+    return angle::Result::Continue;
+}
+
+}  // namespace gl
+
+#endif  // LIBANGLE_STATE_H_