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// Copyright (c) 2012 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef UI_GL_GL_CONTEXT_CGL_H_
#define UI_GL_GL_CONTEXT_CGL_H_
#include <OpenGL/CGLTypes.h>
#include <map>
#include <memory>
#include "base/macros.h"
#include "ui/gfx/color_space.h"
#include "ui/gl/gl_context.h"
#include "ui/gl/gl_export.h"
namespace gl {
class GLFence;
class GLSurface;
// Encapsulates a CGL OpenGL context.
class GL_EXPORT GLContextCGL : public GLContextReal {
public:
explicit GLContextCGL(GLShareGroup* share_group);
// Implement GLContext.
bool Initialize(GLSurface* compatible_surface,
const GLContextAttribs& attribs) override;
bool MakeCurrent(GLSurface* surface) override;
void ReleaseCurrent(GLSurface* surface) override;
bool IsCurrent(GLSurface* surface) override;
void* GetHandle() override;
void SetSafeToForceGpuSwitch() override;
bool ForceGpuSwitchIfNeeded() override;
YUVToRGBConverter* GetYUVToRGBConverter(
const gfx::ColorSpace& color_space) override;
uint64_t BackpressureFenceCreate() override;
void BackpressureFenceWait(uint64_t fence) override;
void FlushForDriverCrashWorkaround() override;
protected:
~GLContextCGL() override;
private:
void Destroy();
GpuPreference GetGpuPreference();
void* context_ = nullptr;
GpuPreference gpu_preference_ = PreferIntegratedGpu;
std::map<gfx::ColorSpace, std::unique_ptr<YUVToRGBConverter>>
yuv_to_rgb_converters_;
std::map<uint64_t, std::unique_ptr<GLFence>> backpressure_fences_;
uint64_t next_backpressure_fence_ = 0;
CGLPixelFormatObj discrete_pixelformat_ = nullptr;
int screen_ = -1;
int renderer_id_ = -1;
bool safe_to_force_gpu_switch_ = true;
// Debugging for https://crbug.com/863817
bool has_switched_gpus_ = false;
DISALLOW_COPY_AND_ASSIGN(GLContextCGL);
};
} // namespace gl
#endif // UI_GL_GL_CONTEXT_CGL_H_
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