1/*
2 *  Copyright (c) 2012 The WebRTC project authors. All Rights Reserved.
3 *
4 *  Use of this source code is governed by a BSD-style license
5 *  that can be found in the LICENSE file in the root of the source
6 *  tree. An additional intellectual property rights grant can be found
7 *  in the file PATENTS.  All contributing project authors may
8 *  be found in the AUTHORS file in the root of the source tree.
9 */
10
11#ifndef WEBRTC_MODULES_VIDEO_RENDER_MAIN_SOURCE_ANDROID_VIDEO_RENDER_OPENGLES20_H_
12#define WEBRTC_MODULES_VIDEO_RENDER_MAIN_SOURCE_ANDROID_VIDEO_RENDER_OPENGLES20_H_
13
14#include "webrtc/modules/video_render/include/video_render_defines.h"
15
16#include <GLES2/gl2.h>
17#include <GLES2/gl2ext.h>
18
19namespace webrtc
20{
21
22class VideoRenderOpenGles20 {
23 public:
24  VideoRenderOpenGles20(int32_t id);
25  ~VideoRenderOpenGles20();
26
27  int32_t Setup(int32_t widht, int32_t height);
28  int32_t Render(const I420VideoFrame& frameToRender);
29  int32_t SetCoordinates(int32_t zOrder, const float left, const float top,
30                         const float right, const float bottom);
31
32 private:
33  void printGLString(const char *name, GLenum s);
34  void checkGlError(const char* op);
35  GLuint loadShader(GLenum shaderType, const char* pSource);
36  GLuint createProgram(const char* pVertexSource,
37                       const char* pFragmentSource);
38  void SetupTextures(const I420VideoFrame& frameToRender);
39  void UpdateTextures(const I420VideoFrame& frameToRender);
40
41  int32_t _id;
42  GLuint _textureIds[3]; // Texture id of Y,U and V texture.
43  GLuint _program;
44  GLsizei _textureWidth;
45  GLsizei _textureHeight;
46
47  GLfloat _vertices[20];
48  static const char g_indices[];
49
50  static const char g_vertextShader[];
51  static const char g_fragmentShader[];
52
53};
54
55}  // namespace webrtc
56
57#endif  // WEBRTC_MODULES_VIDEO_RENDER_MAIN_SOURCE_ANDROID_VIDEO_RENDER_OPENGLES20_H_
58