36cf4d2309
BUG=2105, 2028 R=fischman@webrtc.org, mallinath@webrtc.org Review URL: https://webrtc-codereview.appspot.com/2064004 Patch from SeungJae Lee <sjlee@webrtc.org>. git-svn-id: http://webrtc.googlecode.com/svn/trunk@4734 4adac7df-926f-26a2-2b94-8c16560cd09d
65 lines
2.0 KiB
C++
65 lines
2.0 KiB
C++
/*
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* Copyright (c) 2013 The WebRTC project authors. All Rights Reserved.
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*
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* Use of this source code is governed by a BSD-style license
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* that can be found in the LICENSE file in the root of the source
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* tree. An additional intellectual property rights grant can be found
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* in the file PATENTS. All contributing project authors may
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* be found in the AUTHORS file in the root of the source tree.
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*/
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#ifndef WEBRTC_MODULES_VIDEO_RENDER_IOS_OPEN_GLES20_H_
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#define WEBRTC_MODULES_VIDEO_RENDER_IOS_OPEN_GLES20_H_
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#include <OpenGLES/ES2/glext.h>
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#include "webrtc/modules/video_render/include/video_render_defines.h"
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/*
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* This OpenGles20 is the class of renderer for I420VideoFrame into a GLES 2.0
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* windows used in the VideoRenderIosView class.
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*/
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namespace webrtc {
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class OpenGles20 {
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public:
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OpenGles20();
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~OpenGles20();
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bool Setup(int32_t width, int32_t height);
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bool Render(const I420VideoFrame& frame);
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// SetCoordinates
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// Sets the coordinates where the stream shall be rendered.
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// Values must be between 0 and 1.
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bool SetCoordinates(const float z_order,
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const float left,
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const float top,
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const float right,
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const float bottom);
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private:
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// Compile and load the vertex and fragment shaders defined at the top of
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// open_gles20.mm
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GLuint LoadShader(GLenum shader_type, const char* shader_source);
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GLuint CreateProgram(const char* vertex_source, const char* fragment_source);
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// Initialize the textures by the frame width and height
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void SetupTextures(const I420VideoFrame& frame);
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// Update the textures by the YUV data from the frame
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void UpdateTextures(const I420VideoFrame& frame);
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GLuint texture_ids_[3]; // Texture id of Y,U and V texture.
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GLuint program_;
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GLsizei texture_width_;
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GLsizei texture_height_;
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GLfloat vertices_[20];
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static const char indices_[];
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static const char vertext_shader_[];
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static const char fragment_shader_[];
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};
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} // namespace webrtc
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#endif // WEBRTC_MODULES_VIDEO_RENDER_IOS_OPEN_GLES20_H_
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