4 * Common GL code that doesn't depend on a specific implementation
6 * Copyright (c) 2005 Nathan Keynes.
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License as published by
10 * the Free Software Foundation; either version 2 of the License, or
11 * (at your option) any later version.
13 * This program is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 * GNU General Public License for more details.
19 #ifndef video_gl_common_H
20 #define video_gl_common_H
23 * Generic GL routine to draw the given frame buffer into a texture
25 gboolean gl_load_frame_buffer( frame_buffer_t frame, int tex_id );
28 * Reset the GL state to its initial values
30 void gl_reset_state();
33 * Generic GL routine to blank the display view with the specified colour.
35 void gl_display_blank( uint32_t colour );
38 * Write a rectangular texture (GL_TEXTURE_RECTANGLE_ARB) to the display frame
40 void gl_display_render_buffer( render_buffer_t buffer );
43 * Write a rectangular texture (GL_TEXTURE_RECTANGLE_ARB) to the display frame
45 void gl_texture_window( int width, int height, int tex_id, gboolean inverted );
48 * Generic GL read_render_buffer. This function assumes that the caller
49 * has already set the appropriate glReadBuffer(); in other words, unless
50 * there's only one buffer this needs to be wrapped.
52 gboolean gl_read_render_buffer( unsigned char *target, render_buffer_t buffer,
53 int rowstride, int colour_format );
56 /****** FBO handling (gl_fbo.c) ******/
57 gboolean gl_fbo_is_supported();
58 void gl_fbo_shutdown();
59 void gl_fbo_init( display_driver_t driver );
62 #endif /* !video_gl_common_H */
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