1/*
2 Copyright (C) 2016 Igalia S.L.
3
4 This library is free software; you can redistribute it and/or
5 modify it under the terms of the GNU Library General Public
6 License as published by the Free Software Foundation; either
7 version 2 of the License, or (at your option) any later version.
8
9 This library is distributed in the hope that it will be useful,
10 but WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 Library General Public License for more details.
13
14 You should have received a copy of the GNU Library General Public License
15 along with this library; see the file COPYING.LIB. If not, write to
16 the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
17 Boston, MA 02110-1301, USA.
18 */
19
20#ifndef VideoTextureCopierGStreamer_h
21#define VideoTextureCopierGStreamer_h
22
23#if USE(GSTREAMER_GL)
24
25#include "ImageOrientation.h"
26#include "TextureMapperGLHeaders.h"
27#include "TransformationMatrix.h"
28#include <wtf/RefPtr.h>
29
30namespace WebCore {
31
32class TextureMapperShaderProgram;
33class ImageOrientation;
34
35class VideoTextureCopierGStreamer {
36public:
37 enum class ColorConversion {
38 ConvertBGRAToRGBA,
39 ConvertARGBToRGBA
40 };
41
42 VideoTextureCopierGStreamer(ColorConversion);
43 ~VideoTextureCopierGStreamer();
44
45 bool copyVideoTextureToPlatformTexture(GLuint inputTexture, IntSize& frameSize, GLuint outputTexture, GLenum outputTarget, GLint level, GLenum internalFormat, GLenum format, GLenum type, bool flipY, ImageOrientation& sourceOrientation);
46 void updateColorConversionMatrix(ColorConversion);
47 void updateTextureSpaceMatrix();
48 void updateTransformationMatrix();
49 GLuint resultTexture() { return m_resultTexture; }
50
51private:
52 RefPtr<TextureMapperShaderProgram> m_shaderProgram;
53 GLuint m_framebuffer { 0 };
54 GLuint m_vbo { 0 };
55#if !USE(OPENGL_ES)
56 GLuint m_vao { 0 };
57#endif
58 bool m_flipY { false };
59 ImageOrientation m_orientation;
60 IntSize m_size;
61 TransformationMatrix m_modelViewMatrix;
62 TransformationMatrix m_projectionMatrix;
63 TransformationMatrix m_textureSpaceMatrix;
64 TransformationMatrix m_colorConversionMatrix;
65 GLuint m_resultTexture { 0 };
66};
67
68} // namespace WebCore
69
70#endif // USE(GSTREAMER_GL)
71
72#endif // VideoTextureCopierGStreamer_h
73