chromium/third_party/angle/src/libANGLE/Context.h

//
//
// Copyright 2002 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.
//

// Context.h: Defines the gl::Context class, managing all GL state and performing
// rendering operations. It is the GLES2 specific implementation of EGLContext.

#ifndef LIBANGLE_CONTEXT_H_
#define LIBANGLE_CONTEXT_H_

#include <mutex>
#include <set>
#include <string>

#include "angle_gl.h"
#include "common/MemoryBuffer.h"
#include "common/PackedEnums.h"
#include "common/SimpleMutex.h"
#include "common/angleutils.h"
#include "libANGLE/Caps.h"
#include "libANGLE/Constants.h"
#include "libANGLE/Context_gl_1_autogen.h"
#include "libANGLE/Context_gl_2_autogen.h"
#include "libANGLE/Context_gl_3_autogen.h"
#include "libANGLE/Context_gl_4_autogen.h"
#include "libANGLE/Context_gles_1_0_autogen.h"
#include "libANGLE/Context_gles_2_0_autogen.h"
#include "libANGLE/Context_gles_3_0_autogen.h"
#include "libANGLE/Context_gles_3_1_autogen.h"
#include "libANGLE/Context_gles_3_2_autogen.h"
#include "libANGLE/Context_gles_ext_autogen.h"
#include "libANGLE/Error.h"
#include "libANGLE/Framebuffer.h"
#include "libANGLE/HandleAllocator.h"
#include "libANGLE/RefCountObject.h"
#include "libANGLE/ResourceManager.h"
#include "libANGLE/ResourceMap.h"
#include "libANGLE/State.h"
#include "libANGLE/VertexAttribute.h"
#include "libANGLE/angletypes.h"

namespace angle
{
class Closure;
class FrameCapture;
class FrameCaptureShared;
struct FrontendFeatures;
class WaitableEvent;
}  // namespace angle

namespace rx
{
class ContextImpl;
class EGLImplFactory;
}  // namespace rx

namespace egl
{
class AttributeMap;
class Surface;
struct Config;
class Thread;
}  // namespace egl

namespace gl
{
class Buffer;
class Compiler;
class FenceNV;
class GLES1Renderer;
class MemoryProgramCache;
class MemoryShaderCache;
class MemoryObject;
class PixelLocalStoragePlane;
class Program;
class ProgramPipeline;
class Query;
class Renderbuffer;
class Sampler;
class Semaphore;
class Shader;
class Sync;
class Texture;
class TransformFeedback;
class VertexArray;
struct VertexAttribute;

class ErrorSet : angle::NonCopyable
{ … };

enum class VertexAttribTypeCase
{ … };

// Part of StateCache (see below) that is private to the context and is inaccessible to other
// contexts.
class PrivateStateCache final : angle::NonCopyable
{ … };

// Helper class for managing cache variables and state changes.
class StateCache final : angle::NonCopyable
{ … };

VertexArrayMap;
QueryMap;
TransformFeedbackMap;

class Context final : public egl::LabeledObject, angle::NonCopyable, public angle::ObserverInterface
{ … };

class [[nodiscard]] ScopedContextRef
{ … };

// Thread-local current valid context bound to the thread.
#if defined(ANGLE_PLATFORM_APPLE) || defined(ANGLE_USE_STATIC_THREAD_LOCAL_VARIABLES)
extern Context *GetCurrentValidContextTLS();
extern void SetCurrentValidContextTLS(Context *context);
#else
extern thread_local Context *gCurrentValidContext;
#endif

extern void SetCurrentValidContext(Context *context);

}  // namespace gl

#endif  // LIBANGLE_CONTEXT_H_