src/libANGLE/renderer/d3d/d3d11/StateManager11.h - angle/angle - Git at Google

 //
 // Copyright (c) 2015 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.
 //

 // StateManager11.h: Defines a class for caching D3D11 state

 #ifndef LIBANGLE_RENDERER_D3D11_STATEMANAGER11_H_
 #define LIBANGLE_RENDERER_D3D11_STATEMANAGER11_H_

 #include <array>

 #include "libANGLE/ContextState.h"
 #include "libANGLE/State.h"
 #include "libANGLE/angletypes.h"
 #include "libANGLE/renderer/d3d/IndexDataManager.h"
 #include "libANGLE/renderer/d3d/RendererD3D.h"
 #include "libANGLE/renderer/d3d/d3d11/InputLayoutCache.h"
 #include "libANGLE/renderer/d3d/d3d11/Query11.h"
 #include "libANGLE/renderer/d3d/d3d11/RenderStateCache.h"
 #include "libANGLE/renderer/d3d/d3d11/renderer11_utils.h"

 namespace rx
 {

 struct RenderTargetDesc;
 struct Renderer11DeviceCaps;

 struct dx_VertexConstants11
 {
     float depthRange[4];
     float viewAdjust[4];
     float viewCoords[4];
     float viewScale[4];
 };

 struct dx_PixelConstants11
 {
     float depthRange[4];
     float viewCoords[4];
     float depthFront[4];
     float viewScale[4];
 };

 struct dx_ComputeConstants11
 {
     unsigned int numWorkGroups[3];
     unsigned int padding;  // This just pads the struct to 16 bytes
 };

 class SamplerMetadata11 final : angle::NonCopyable
 {
   public:
     SamplerMetadata11();
     ~SamplerMetadata11();

     struct dx_SamplerMetadata
     {
         int baseLevel;
         int internalFormatBits;
         int wrapModes;
         int padding;  // This just pads the struct to 16 bytes
     };
     static_assert(sizeof(dx_SamplerMetadata) == 16u,
                   "Sampler metadata struct must be one 4-vec / 16 bytes.");

     void initData(unsigned int samplerCount);
     void update(unsigned int samplerIndex, const gl::Texture &texture);

     const dx_SamplerMetadata *getData() const;
     size_t sizeBytes() const;
     bool isDirty() const { return mDirty; }
     void markClean() { mDirty = false; }

   private:
     std::vector<dx_SamplerMetadata> mSamplerMetadata;
     bool mDirty;
 };

 class StateManager11 final : angle::NonCopyable
 {
   public:
     StateManager11(Renderer11 *renderer);
     ~StateManager11();

     gl::Error initialize(const gl::Caps &caps, const gl::Extensions &extensions);
     void deinitialize();

     void syncState(const gl::Context *context, const gl::State::DirtyBits &dirtyBits);

     // TODO(jmadill): Don't expose these.
     const dx_VertexConstants11 &getVertexConstants() const { return mVertexConstants; }
     const dx_PixelConstants11 &getPixelConstants() const { return mPixelConstants; }
     const dx_ComputeConstants11 &getComputeConstants() const { return mComputeConstants; }

     SamplerMetadata11 *getVertexSamplerMetadata() { return &mSamplerMetadataVS; }
     SamplerMetadata11 *getPixelSamplerMetadata() { return &mSamplerMetadataPS; }
     SamplerMetadata11 *getComputeSamplerMetadata() { return &mSamplerMetadataCS; }

     gl::Error updateStateForCompute(const gl::Context *context,
                                     GLuint numGroupsX,
                                     GLuint numGroupsY,
                                     GLuint numGroupsZ);

     void updateStencilSizeIfChanged(bool depthStencilInitialized, unsigned int stencilSize);

     void setShaderResource(gl::SamplerType shaderType,
                            UINT resourceSlot,
                            ID3D11ShaderResourceView *srv);

     // Checks are done on a framebuffer state change to trigger other state changes.
     // The Context is allowed to be nullptr for these methods, when called in EGL init code.
     void invalidateRenderTarget(const gl::Context *context);
     void invalidateBoundViews(const gl::Context *context);
     void invalidateVertexBuffer();
     void invalidateEverything(const gl::Context *context);
     void invalidateViewport(const gl::Context *context);

     // Called from VertexArray11::updateVertexAttribStorage.
     void invalidateCurrentValueAttrib(size_t attribIndex);

     void setOneTimeRenderTarget(const gl::Context *context,
                                 ID3D11RenderTargetView *rtv,
                                 ID3D11DepthStencilView *dsv);
     void setOneTimeRenderTargets(const gl::Context *context,
                                  ID3D11RenderTargetView **rtvs,
                                  UINT numRtvs,
                                  ID3D11DepthStencilView *dsv);

     void onBeginQuery(Query11 *query);
     void onDeleteQueryObject(Query11 *query);
     gl::Error onMakeCurrent(const gl::Context *context);

     void setInputLayout(const d3d11::InputLayout *inputLayout);

     // TODO(jmadill): Migrate to d3d11::Buffer.
     bool queueVertexBufferChange(size_t bufferIndex,
                                  ID3D11Buffer *buffer,
                                  UINT stride,
                                  UINT offset);
     bool queueVertexOffsetChange(size_t bufferIndex, UINT offsetOnly);
     void applyVertexBufferChanges();

     void setSingleVertexBuffer(const d3d11::Buffer *buffer, UINT stride, UINT offset);

     gl::Error updateState(const gl::Context *context, GLenum drawMode);

     void setPrimitiveTopology(D3D11_PRIMITIVE_TOPOLOGY primitiveTopology);

     void setDrawShaders(const d3d11::VertexShader *vertexShader,
                         const d3d11::GeometryShader *geometryShader,
                         const d3d11::PixelShader *pixelShader);
     void setVertexShader(const d3d11::VertexShader *shader);
     void setGeometryShader(const d3d11::GeometryShader *shader);
     void setPixelShader(const d3d11::PixelShader *shader);
     void setComputeShader(const d3d11::ComputeShader *shader);

     // Not handled by an internal dirty bit because of the extra draw parameters.
     gl::Error applyVertexBuffer(const gl::Context *context,
                                 GLenum mode,
                                 GLint first,
                                 GLsizei count,
                                 GLsizei instances,
                                 TranslatedIndexData *indexInfo);

     gl::Error applyIndexBuffer(const gl::ContextState &data,
                                const void *indices,
                                GLsizei count,
                                GLenum type,
                                TranslatedIndexData *indexInfo);

     void setIndexBuffer(ID3D11Buffer *buffer,
                         DXGI_FORMAT indexFormat,
                         unsigned int offset,
                         bool indicesChanged);

     gl::Error updateVertexOffsetsForPointSpritesEmulation(GLint startVertex,
                                                           GLsizei emulatedInstanceId);

     // Only used in testing.
     InputLayoutCache *getInputLayoutCache() { return &mInputLayoutCache; }

   private:
     void unsetConflictingSRVs(gl::SamplerType shaderType,
                               uintptr_t resource,
                               const gl::ImageIndex &index);
     void unsetConflictingAttachmentResources(const gl::FramebufferAttachment *attachment,
                                              ID3D11Resource *resource);

     gl::Error syncBlendState(const gl::Context *context,
                              const gl::Framebuffer *framebuffer,
                              const gl::BlendState &blendState,
                              const gl::ColorF &blendColor,
                              unsigned int sampleMask);

     gl::Error syncDepthStencilState(const gl::State &glState);

     gl::Error syncRasterizerState(const gl::Context *context, bool pointDrawMode);

     void syncScissorRectangle(const gl::Rectangle &scissor, bool enabled);

     void syncViewport(const gl::Context *context);

     void checkPresentPath(const gl::Context *context);

     gl::Error syncFramebuffer(const gl::Context *context, gl::Framebuffer *framebuffer);
     gl::Error syncProgram(const gl::Context *context, GLenum drawMode);

     gl::Error syncTextures(const gl::Context *context);
     gl::Error applyTextures(const gl::Context *context,
                             gl::SamplerType shaderType,
                             const FramebufferTextureArray &framebufferTextures,
                             size_t framebufferTextureCount);

     gl::Error setSamplerState(const gl::Context *context,
                               gl::SamplerType type,
                               int index,
                               gl::Texture *texture,
                               const gl::SamplerState &sampler);
     gl::Error setTexture(const gl::Context *context,
                          gl::SamplerType type,
                          int index,
                          gl::Texture *texture);

     // Faster than calling setTexture a jillion times
     gl::Error clearTextures(gl::SamplerType samplerType, size_t rangeStart, size_t rangeEnd);
     void handleMultiviewDrawFramebufferChange(const gl::Context *context);

     gl::Error syncCurrentValueAttribs(const gl::State &state);

     enum DirtyBitType
     {
         DIRTY_BIT_RENDER_TARGET,
         DIRTY_BIT_VIEWPORT_STATE,
         DIRTY_BIT_SCISSOR_STATE,
         DIRTY_BIT_RASTERIZER_STATE,
         DIRTY_BIT_BLEND_STATE,
         DIRTY_BIT_DEPTH_STENCIL_STATE,
         DIRTY_BIT_INVALID,
         DIRTY_BIT_MAX = DIRTY_BIT_INVALID,
     };

     using DirtyBits = angle::BitSet<DIRTY_BIT_MAX>;

     Renderer11 *mRenderer;

     // Internal dirty bits.
     DirtyBits mInternalDirtyBits;

     // Blend State
     gl::BlendState mCurBlendState;
     gl::ColorF mCurBlendColor;
     unsigned int mCurSampleMask;

     // Currently applied depth stencil state
     gl::DepthStencilState mCurDepthStencilState;
     int mCurStencilRef;
     int mCurStencilBackRef;
     unsigned int mCurStencilSize;
     Optional<bool> mCurDisableDepth;
     Optional<bool> mCurDisableStencil;

     // Currently applied rasterizer state
     gl::RasterizerState mCurRasterState;

     // Currently applied scissor rectangle state
     bool mCurScissorEnabled;
     gl::Rectangle mCurScissorRect;

     // Currently applied viewport state
     gl::Rectangle mCurViewport;
     float mCurNear;
     float mCurFar;

     // The viewport offsets are guaranteed to be updated whenever the gl::State::DirtyBits are
     // resolved and can be applied to the viewport and scissor whenever the internal viewport and
     // scissor bits are resolved.
     std::vector<gl::Offset> mViewportOffsets;

     // Things needed in viewport state
     dx_VertexConstants11 mVertexConstants;
     dx_PixelConstants11 mPixelConstants;

     dx_ComputeConstants11 mComputeConstants;

     // Render target variables
     gl::Extents mViewportBounds;

     // EGL_ANGLE_experimental_present_path variables
     bool mCurPresentPathFastEnabled;
     int mCurPresentPathFastColorBufferHeight;

     // Queries that are currently active in this state
     std::set<Query11 *> mCurrentQueries;

     // Currently applied textures
     struct SRVRecord
     {
         uintptr_t srv;
         uintptr_t resource;
         D3D11_SHADER_RESOURCE_VIEW_DESC desc;
     };

     // A cache of current SRVs that also tracks the highest 'used' (non-NULL) SRV
     // We might want to investigate a more robust approach that is also fast when there's
     // a large gap between used SRVs (e.g. if SRV 0 and 7 are non-NULL, this approach will
     // waste time on SRVs 1-6.)
     class SRVCache : angle::NonCopyable
     {
       public:
         SRVCache() : mHighestUsedSRV(0) {}

         void initialize(size_t size) { mCurrentSRVs.resize(size); }

         size_t size() const { return mCurrentSRVs.size(); }
         size_t highestUsed() const { return mHighestUsedSRV; }

         const SRVRecord &operator[](size_t index) const { return mCurrentSRVs[index]; }
         void clear();
         void update(size_t resourceIndex, ID3D11ShaderResourceView *srv);

       private:
         std::vector<SRVRecord> mCurrentSRVs;
         size_t mHighestUsedSRV;
     };

     SRVCache mCurVertexSRVs;
     SRVCache mCurPixelSRVs;

     // A block of NULL pointers, cached so we don't re-allocate every draw call
     std::vector<ID3D11ShaderResourceView *> mNullSRVs;

     // Current translations of "Current-Value" data - owned by Context, not VertexArray.
     gl::AttributesMask mDirtyCurrentValueAttribs;
     std::vector<TranslatedAttribute> mCurrentValueAttribs;

     // Current applied input layout.
     ResourceSerial mCurrentInputLayout;
     bool mInputLayoutIsDirty;

     // Current applied vertex states.
     // TODO(jmadill): Figure out how to use ResourceSerial here.
     std::array<ID3D11Buffer *, gl::MAX_VERTEX_ATTRIBS> mCurrentVertexBuffers;
     std::array<UINT, gl::MAX_VERTEX_ATTRIBS> mCurrentVertexStrides;
     std::array<UINT, gl::MAX_VERTEX_ATTRIBS> mCurrentVertexOffsets;
     gl::RangeUI mDirtyVertexBufferRange;

     // Currently applied primitive topology
     D3D11_PRIMITIVE_TOPOLOGY mCurrentPrimitiveTopology;

     // Currently applied shaders
     ResourceSerial mAppliedVertexShader;
     ResourceSerial mAppliedGeometryShader;
     ResourceSerial mAppliedPixelShader;
     ResourceSerial mAppliedComputeShader;

     // Currently applied sampler states
     std::vector<bool> mForceSetVertexSamplerStates;
     std::vector<gl::SamplerState> mCurVertexSamplerStates;

     std::vector<bool> mForceSetPixelSamplerStates;
     std::vector<gl::SamplerState> mCurPixelSamplerStates;

     std::vector<bool> mForceSetComputeSamplerStates;
     std::vector<gl::SamplerState> mCurComputeSamplerStates;

     SamplerMetadata11 mSamplerMetadataVS;
     SamplerMetadata11 mSamplerMetadataPS;
     SamplerMetadata11 mSamplerMetadataCS;

     // Currently applied index buffer
     ID3D11Buffer *mAppliedIB;
     DXGI_FORMAT mAppliedIBFormat;
     unsigned int mAppliedIBOffset;
     bool mAppliedIBChanged;

     // Vertex, index and input layouts
     VertexDataManager mVertexDataManager;
     IndexDataManager mIndexDataManager;
     InputLayoutCache mInputLayoutCache;
     std::vector<const TranslatedAttribute *> mCurrentAttributes;
     Optional<GLint> mLastFirstVertex;

     // ANGLE_multiview.
     bool mIsMultiviewEnabled;
 };

 }  // namespace rx
 #endif  // LIBANGLE_RENDERER_D3D11_STATEMANAGER11_H_
	//
	// Copyright (c) 2015 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.
	//

	// StateManager11.h: Defines a class for caching D3D11 state

	#ifndef LIBANGLE_RENDERER_D3D11_STATEMANAGER11_H_
	#define LIBANGLE_RENDERER_D3D11_STATEMANAGER11_H_

	#include <array>

	#include "libANGLE/ContextState.h"
	#include "libANGLE/State.h"
	#include "libANGLE/angletypes.h"
	#include "libANGLE/renderer/d3d/IndexDataManager.h"
	#include "libANGLE/renderer/d3d/RendererD3D.h"
	#include "libANGLE/renderer/d3d/d3d11/InputLayoutCache.h"
	#include "libANGLE/renderer/d3d/d3d11/Query11.h"
	#include "libANGLE/renderer/d3d/d3d11/RenderStateCache.h"
	#include "libANGLE/renderer/d3d/d3d11/renderer11_utils.h"

	namespace rx
	{

	struct RenderTargetDesc;
	struct Renderer11DeviceCaps;

	struct dx_VertexConstants11
	{
	float depthRange[4];
	float viewAdjust[4];
	float viewCoords[4];
	float viewScale[4];
	};

	struct dx_PixelConstants11
	{
	float depthRange[4];
	float viewCoords[4];
	float depthFront[4];
	float viewScale[4];
	};

	struct dx_ComputeConstants11
	{
	unsigned int numWorkGroups[3];
	unsigned int padding; // This just pads the struct to 16 bytes
	};

	class SamplerMetadata11 final : angle::NonCopyable
	{
	public:
	SamplerMetadata11();
	~SamplerMetadata11();

	struct dx_SamplerMetadata
	{
	int baseLevel;
	int internalFormatBits;
	int wrapModes;
	int padding; // This just pads the struct to 16 bytes
	};
	static_assert(sizeof(dx_SamplerMetadata) == 16u,
	"Sampler metadata struct must be one 4-vec / 16 bytes.");

	void initData(unsigned int samplerCount);
	void update(unsigned int samplerIndex, const gl::Texture &texture);

	const dx_SamplerMetadata *getData() const;
	size_t sizeBytes() const;
	bool isDirty() const { return mDirty; }
	void markClean() { mDirty = false; }

	private:
	std::vector<dx_SamplerMetadata> mSamplerMetadata;
	bool mDirty;
	};

	class StateManager11 final : angle::NonCopyable
	{
	public:
	StateManager11(Renderer11 *renderer);
	~StateManager11();

	gl::Error initialize(const gl::Caps &caps, const gl::Extensions &extensions);
	void deinitialize();

	void syncState(const gl::Context *context, const gl::State::DirtyBits &dirtyBits);

	// TODO(jmadill): Don't expose these.
	const dx_VertexConstants11 &getVertexConstants() const { return mVertexConstants; }
	const dx_PixelConstants11 &getPixelConstants() const { return mPixelConstants; }
	const dx_ComputeConstants11 &getComputeConstants() const { return mComputeConstants; }

	SamplerMetadata11 *getVertexSamplerMetadata() { return &mSamplerMetadataVS; }
	SamplerMetadata11 *getPixelSamplerMetadata() { return &mSamplerMetadataPS; }
	SamplerMetadata11 *getComputeSamplerMetadata() { return &mSamplerMetadataCS; }

	gl::Error updateStateForCompute(const gl::Context *context,
	GLuint numGroupsX,
	GLuint numGroupsY,
	GLuint numGroupsZ);

	void updateStencilSizeIfChanged(bool depthStencilInitialized, unsigned int stencilSize);

	void setShaderResource(gl::SamplerType shaderType,
	UINT resourceSlot,
	ID3D11ShaderResourceView *srv);

	// Checks are done on a framebuffer state change to trigger other state changes.
	// The Context is allowed to be nullptr for these methods, when called in EGL init code.
	void invalidateRenderTarget(const gl::Context *context);
	void invalidateBoundViews(const gl::Context *context);
	void invalidateVertexBuffer();
	void invalidateEverything(const gl::Context *context);
	void invalidateViewport(const gl::Context *context);

	// Called from VertexArray11::updateVertexAttribStorage.
	void invalidateCurrentValueAttrib(size_t attribIndex);

	void setOneTimeRenderTarget(const gl::Context *context,
	ID3D11RenderTargetView *rtv,
	ID3D11DepthStencilView *dsv);
	void setOneTimeRenderTargets(const gl::Context *context,
	ID3D11RenderTargetView **rtvs,
	UINT numRtvs,
	ID3D11DepthStencilView *dsv);

	void onBeginQuery(Query11 *query);
	void onDeleteQueryObject(Query11 *query);
	gl::Error onMakeCurrent(const gl::Context *context);

	void setInputLayout(const d3d11::InputLayout *inputLayout);

	// TODO(jmadill): Migrate to d3d11::Buffer.
	bool queueVertexBufferChange(size_t bufferIndex,
	ID3D11Buffer *buffer,
	UINT stride,
	UINT offset);
	bool queueVertexOffsetChange(size_t bufferIndex, UINT offsetOnly);
	void applyVertexBufferChanges();

	void setSingleVertexBuffer(const d3d11::Buffer *buffer, UINT stride, UINT offset);

	gl::Error updateState(const gl::Context *context, GLenum drawMode);

	void setPrimitiveTopology(D3D11_PRIMITIVE_TOPOLOGY primitiveTopology);

	void setDrawShaders(const d3d11::VertexShader *vertexShader,
	const d3d11::GeometryShader *geometryShader,
	const d3d11::PixelShader *pixelShader);
	void setVertexShader(const d3d11::VertexShader *shader);
	void setGeometryShader(const d3d11::GeometryShader *shader);
	void setPixelShader(const d3d11::PixelShader *shader);
	void setComputeShader(const d3d11::ComputeShader *shader);

	// Not handled by an internal dirty bit because of the extra draw parameters.
	gl::Error applyVertexBuffer(const gl::Context *context,
	GLenum mode,
	GLint first,
	GLsizei count,
	GLsizei instances,
	TranslatedIndexData *indexInfo);

	gl::Error applyIndexBuffer(const gl::ContextState &data,
	const void *indices,
	GLsizei count,
	GLenum type,
	TranslatedIndexData *indexInfo);

	void setIndexBuffer(ID3D11Buffer *buffer,
	DXGI_FORMAT indexFormat,
	unsigned int offset,
	bool indicesChanged);

	gl::Error updateVertexOffsetsForPointSpritesEmulation(GLint startVertex,
	GLsizei emulatedInstanceId);

	// Only used in testing.
	InputLayoutCache *getInputLayoutCache() { return &mInputLayoutCache; }

	private:
	void unsetConflictingSRVs(gl::SamplerType shaderType,
	uintptr_t resource,
	const gl::ImageIndex &index);
	void unsetConflictingAttachmentResources(const gl::FramebufferAttachment *attachment,
	ID3D11Resource *resource);

	gl::Error syncBlendState(const gl::Context *context,
	const gl::Framebuffer *framebuffer,
	const gl::BlendState &blendState,
	const gl::ColorF &blendColor,
	unsigned int sampleMask);

	gl::Error syncDepthStencilState(const gl::State &glState);

	gl::Error syncRasterizerState(const gl::Context *context, bool pointDrawMode);

	void syncScissorRectangle(const gl::Rectangle &scissor, bool enabled);

	void syncViewport(const gl::Context *context);

	void checkPresentPath(const gl::Context *context);

	gl::Error syncFramebuffer(const gl::Context context, gl::Framebuffer framebuffer);
	gl::Error syncProgram(const gl::Context *context, GLenum drawMode);

	gl::Error syncTextures(const gl::Context *context);
	gl::Error applyTextures(const gl::Context *context,
	gl::SamplerType shaderType,
	const FramebufferTextureArray &framebufferTextures,
	size_t framebufferTextureCount);

	gl::Error setSamplerState(const gl::Context *context,
	gl::SamplerType type,
	int index,
	gl::Texture *texture,
	const gl::SamplerState &sampler);
	gl::Error setTexture(const gl::Context *context,
	gl::SamplerType type,
	int index,
	gl::Texture *texture);

	// Faster than calling setTexture a jillion times
	gl::Error clearTextures(gl::SamplerType samplerType, size_t rangeStart, size_t rangeEnd);
	void handleMultiviewDrawFramebufferChange(const gl::Context *context);

	gl::Error syncCurrentValueAttribs(const gl::State &state);

	enum DirtyBitType
	{
	DIRTY_BIT_RENDER_TARGET,
	DIRTY_BIT_VIEWPORT_STATE,
	DIRTY_BIT_SCISSOR_STATE,
	DIRTY_BIT_RASTERIZER_STATE,
	DIRTY_BIT_BLEND_STATE,
	DIRTY_BIT_DEPTH_STENCIL_STATE,
	DIRTY_BIT_INVALID,
	DIRTY_BIT_MAX = DIRTY_BIT_INVALID,
	};

	using DirtyBits = angle::BitSet<DIRTY_BIT_MAX>;

	Renderer11 *mRenderer;

	// Internal dirty bits.
	DirtyBits mInternalDirtyBits;

	// Blend State
	gl::BlendState mCurBlendState;
	gl::ColorF mCurBlendColor;
	unsigned int mCurSampleMask;

	// Currently applied depth stencil state
	gl::DepthStencilState mCurDepthStencilState;
	int mCurStencilRef;
	int mCurStencilBackRef;
	unsigned int mCurStencilSize;
	Optional<bool> mCurDisableDepth;
	Optional<bool> mCurDisableStencil;

	// Currently applied rasterizer state
	gl::RasterizerState mCurRasterState;

	// Currently applied scissor rectangle state
	bool mCurScissorEnabled;
	gl::Rectangle mCurScissorRect;

	// Currently applied viewport state
	gl::Rectangle mCurViewport;
	float mCurNear;
	float mCurFar;

	// The viewport offsets are guaranteed to be updated whenever the gl::State::DirtyBits are
	// resolved and can be applied to the viewport and scissor whenever the internal viewport and
	// scissor bits are resolved.
	std::vector<gl::Offset> mViewportOffsets;

	// Things needed in viewport state
	dx_VertexConstants11 mVertexConstants;
	dx_PixelConstants11 mPixelConstants;

	dx_ComputeConstants11 mComputeConstants;

	// Render target variables
	gl::Extents mViewportBounds;

	// EGL_ANGLE_experimental_present_path variables
	bool mCurPresentPathFastEnabled;
	int mCurPresentPathFastColorBufferHeight;

	// Queries that are currently active in this state
	std::set<Query11 *> mCurrentQueries;

	// Currently applied textures
	struct SRVRecord
	{
	uintptr_t srv;
	uintptr_t resource;
	D3D11_SHADER_RESOURCE_VIEW_DESC desc;
	};

	// A cache of current SRVs that also tracks the highest 'used' (non-NULL) SRV
	// We might want to investigate a more robust approach that is also fast when there's
	// a large gap between used SRVs (e.g. if SRV 0 and 7 are non-NULL, this approach will
	// waste time on SRVs 1-6.)
	class SRVCache : angle::NonCopyable
	{
	public:
	SRVCache() : mHighestUsedSRV(0) {}

	void initialize(size_t size) { mCurrentSRVs.resize(size); }

	size_t size() const { return mCurrentSRVs.size(); }
	size_t highestUsed() const { return mHighestUsedSRV; }

	const SRVRecord &operator[](size_t index) const { return mCurrentSRVs[index]; }
	void clear();
	void update(size_t resourceIndex, ID3D11ShaderResourceView *srv);

	private:
	std::vector<SRVRecord> mCurrentSRVs;
	size_t mHighestUsedSRV;
	};

	SRVCache mCurVertexSRVs;
	SRVCache mCurPixelSRVs;

	// A block of NULL pointers, cached so we don't re-allocate every draw call
	std::vector<ID3D11ShaderResourceView *> mNullSRVs;

	// Current translations of "Current-Value" data - owned by Context, not VertexArray.
	gl::AttributesMask mDirtyCurrentValueAttribs;
	std::vector<TranslatedAttribute> mCurrentValueAttribs;

	// Current applied input layout.
	ResourceSerial mCurrentInputLayout;
	bool mInputLayoutIsDirty;

	// Current applied vertex states.
	// TODO(jmadill): Figure out how to use ResourceSerial here.
	std::array<ID3D11Buffer *, gl::MAX_VERTEX_ATTRIBS> mCurrentVertexBuffers;
	std::array<UINT, gl::MAX_VERTEX_ATTRIBS> mCurrentVertexStrides;
	std::array<UINT, gl::MAX_VERTEX_ATTRIBS> mCurrentVertexOffsets;
	gl::RangeUI mDirtyVertexBufferRange;

	// Currently applied primitive topology
	D3D11_PRIMITIVE_TOPOLOGY mCurrentPrimitiveTopology;

	// Currently applied shaders
	ResourceSerial mAppliedVertexShader;
	ResourceSerial mAppliedGeometryShader;
	ResourceSerial mAppliedPixelShader;
	ResourceSerial mAppliedComputeShader;

	// Currently applied sampler states
	std::vector<bool> mForceSetVertexSamplerStates;
	std::vector<gl::SamplerState> mCurVertexSamplerStates;

	std::vector<bool> mForceSetPixelSamplerStates;
	std::vector<gl::SamplerState> mCurPixelSamplerStates;

	std::vector<bool> mForceSetComputeSamplerStates;
	std::vector<gl::SamplerState> mCurComputeSamplerStates;

	SamplerMetadata11 mSamplerMetadataVS;
	SamplerMetadata11 mSamplerMetadataPS;
	SamplerMetadata11 mSamplerMetadataCS;

	// Currently applied index buffer
	ID3D11Buffer *mAppliedIB;
	DXGI_FORMAT mAppliedIBFormat;
	unsigned int mAppliedIBOffset;
	bool mAppliedIBChanged;

	// Vertex, index and input layouts
	VertexDataManager mVertexDataManager;
	IndexDataManager mIndexDataManager;
	InputLayoutCache mInputLayoutCache;
	std::vector<const TranslatedAttribute *> mCurrentAttributes;
	Optional<GLint> mLastFirstVertex;

	// ANGLE_multiview.
	bool mIsMultiviewEnabled;
	};

	} // namespace rx
	#endif // LIBANGLE_RENDERER_D3D11_STATEMANAGER11_H_