gecko-dev/gfx/layers/GLImages.h

/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim: set ts=8 sts=2 et sw=2 tw=80: */
/* This Source Code Form is subject to the terms of the Mozilla Public
 * License, v. 2.0. If a copy of the MPL was not distributed with this
 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */

#ifndef GFX_GLIMAGES_H
#define GFX_GLIMAGES_H

#include "AndroidSurfaceTexture.h"
#include "GLContextTypes.h"
#include "GLTypes.h"
#include "ImageContainer.h"             // for Image
#include "ImageTypes.h"                 // for ImageFormat::SHARED_GLTEXTURE
#include "nsCOMPtr.h"                   // for already_AddRefed
#include "mozilla/gfx/Point.h"          // for IntSize

namespace mozilla {
namespace layers {

class GLImage : public Image {
public:
  explicit GLImage(ImageFormat aFormat) : Image(nullptr, aFormat){}

  virtual already_AddRefed<gfx::SourceSurface> GetAsSourceSurface() override;

  GLImage* AsGLImage() override {
    return this;
  }
};

#ifdef MOZ_WIDGET_ANDROID

class SurfaceTextureImage : public GLImage {
public:
  SurfaceTextureImage(AndroidSurfaceTextureHandle aHandle,
                      const gfx::IntSize& aSize,
                      bool aContinuous,
                      gl::OriginPos aOriginPos);

  gfx::IntSize GetSize() override { return mSize; }
  AndroidSurfaceTextureHandle GetHandle() const {
    return mHandle;
  }
  bool GetContinuous() const {
    return mContinuous;
  }
  gl::OriginPos GetOriginPos() const {
    return mOriginPos;
  }

  virtual already_AddRefed<gfx::SourceSurface> GetAsSourceSurface() override {
    // We can implement this, but currently don't want to because it will cause the
    // SurfaceTexture to be permanently bound to the snapshot readback context.
    return nullptr;
  }

  SurfaceTextureImage* AsSurfaceTextureImage() override {
    return this;
  }

private:
  AndroidSurfaceTextureHandle mHandle;
  gfx::IntSize mSize;
  bool mContinuous;
  gl::OriginPos mOriginPos;
};

#endif // MOZ_WIDGET_ANDROID

} // namespace layers
} // namespace mozilla

#endif // GFX_GLIMAGES_H