OLD | NEW |
(Empty) | |
| 1 /* |
| 2 * Copyright (c) 2013 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_IOS_OPEN_GLES20_H_ |
| 12 #define WEBRTC_MODULES_VIDEO_RENDER_IOS_OPEN_GLES20_H_ |
| 13 |
| 14 #include <OpenGLES/ES2/glext.h> |
| 15 |
| 16 #include "webrtc/modules/video_render/video_render_defines.h" |
| 17 |
| 18 /* |
| 19 * This OpenGles20 is the class of renderer for VideoFrame into a GLES 2.0 |
| 20 * windows used in the VideoRenderIosView class. |
| 21 */ |
| 22 namespace webrtc { |
| 23 class OpenGles20 { |
| 24 public: |
| 25 OpenGles20(); |
| 26 ~OpenGles20(); |
| 27 |
| 28 bool Setup(int32_t width, int32_t height); |
| 29 bool Render(const VideoFrame& frame); |
| 30 |
| 31 // SetCoordinates |
| 32 // Sets the coordinates where the stream shall be rendered. |
| 33 // Values must be between 0 and 1. |
| 34 bool SetCoordinates(const float z_order, |
| 35 const float left, |
| 36 const float top, |
| 37 const float right, |
| 38 const float bottom); |
| 39 |
| 40 private: |
| 41 // Compile and load the vertex and fragment shaders defined at the top of |
| 42 // open_gles20.mm |
| 43 GLuint LoadShader(GLenum shader_type, const char* shader_source); |
| 44 |
| 45 GLuint CreateProgram(const char* vertex_source, const char* fragment_source); |
| 46 |
| 47 // Initialize the textures by the frame width and height |
| 48 void SetupTextures(const VideoFrame& frame); |
| 49 |
| 50 // Update the textures by the YUV data from the frame |
| 51 void UpdateTextures(const VideoFrame& frame); |
| 52 |
| 53 GLuint texture_ids_[3]; // Texture id of Y,U and V texture. |
| 54 GLuint program_; |
| 55 GLsizei texture_width_; |
| 56 GLsizei texture_height_; |
| 57 |
| 58 GLfloat vertices_[20]; |
| 59 static const char indices_[]; |
| 60 static const char vertext_shader_[]; |
| 61 static const char fragment_shader_[]; |
| 62 }; |
| 63 } // namespace webrtc |
| 64 #endif // WEBRTC_MODULES_VIDEO_RENDER_IOS_OPEN_GLES20_H_ |
OLD | NEW |