Source/ThirdParty/ANGLE/src/libANGLE/renderer/gl/eagl/PbufferSurfaceEAGL.h

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 * Copyright (C) 2019 Apple Inc. All rights reserved.
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// PBufferSurfaceEAGL.h: an implementation of egl::Surface for PBuffers for the CLG backend,
//                      currently implemented using renderbuffers

#ifndef LIBANGLE_RENDERER_GL_EAGL_PBUFFERSURFACEEAGL_H_
#define LIBANGLE_RENDERER_GL_EAGL_PBUFFERSURFACEEAGL_H_

#include "libANGLE/renderer/gl/SurfaceGL.h"

namespace rx
{

class FunctionsGL;
class RendererGL;
class StateManagerGL;

class PbufferSurfaceEAGL : public SurfaceGL
{
  public:
    PbufferSurfaceEAGL(const egl::SurfaceState &state,
                      RendererGL *renderer,
                      EGLint width,
                      EGLint height);
    ~PbufferSurfaceEAGL() override;

    egl::Error initialize(const egl::Display *display) override;
    egl::Error makeCurrent(const gl::Context *context) override;

    egl::Error swap(const gl::Context *context) override;
    egl::Error postSubBuffer(const gl::Context *context,
                             EGLint x,
                             EGLint y,
                             EGLint width,
                             EGLint height) override;
    egl::Error querySurfacePointerANGLE(EGLint attribute, void **value) override;
    egl::Error bindTexImage(const gl::Context *context,
                            gl::Texture *texture,
                            EGLint buffer) override;
    egl::Error releaseTexImage(const gl::Context *context, EGLint buffer) override;
    void setSwapInterval(EGLint interval) override;

    EGLint getWidth() const override;
    EGLint getHeight() const override;

    EGLint isPostSubBufferSupported() const override;
    EGLint getSwapBehavior() const override;

    FramebufferImpl *createDefaultFramebuffer(const gl::Context *context,
                                              const gl::FramebufferState &state) override;

  private:
    unsigned mWidth;
    unsigned mHeight;

    // TODO(geofflang): Don't store these, they are potentially specific to a single GL context.
    // http://anglebug.com/2464
    const FunctionsGL *mFunctions;
    StateManagerGL *mStateManager;

    GLuint mColorRenderbuffer;
    GLuint mDSRenderbuffer;
};

}  // namespace rx

#endif  // LIBANGLE_RENDERER_GL_EAGL_PBUFFERSURFACEEAGL_H_