external_texture.h

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// Copyright 2013 The Flutter 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 FLUTTER_SHELL_PLATFORM_WINDOWS_EXTERNAL_TEXTURE_H_
#define FLUTTER_SHELL_PLATFORM_WINDOWS_EXTERNAL_TEXTURE_H_
 
#include "flutter/shell/platform/embedder/embedder.h"
 
#include <GLES2/gl2.h>
#include <GLES2/gl2ext.h>
 
namespace flutter {
 
// Abstract external texture.
class ExternalTexture {
 public:
  virtual ~ExternalTexture() = default;
 
  // Returns the unique id of this texture.
  int64_t texture_id() const { return reinterpret_cast<int64_t>(this); };
 
  // Attempts to populate the specified |opengl_texture| with texture details
  // such as the name, width, height and the pixel format.
  // Returns true on success.
  virtual bool PopulateTexture(size_t width,
                               size_t height,
                               FlutterOpenGLTexture* opengl_texture) = 0;
};
 
}  // namespace flutter
 
#endif  // FLUTTER_SHELL_PLATFORM_WINDOWS_EXTERNAL_TEXTURE_H_