lxdream 0.9.1| filename | src/drivers/video_gl.h |
| changeset | 854:130928a3cdcb |
| prev | 736:a02d1475ccfd |
| next | 1159:580436b01b6c |
| author | nkeynes |
| date | Thu Oct 16 12:06:24 2008 +0000 (15 years ago) |
| permissions | -rw-r--r-- |
| last change | Fix bound check on number of framebuffers allocated Fix repurposing framebuffers to clear out previous attachments to prevent dimension erros. |
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1 /**
2 * $Id$
3 *
4 * Common GL code that doesn't depend on a specific implementation
5 *
6 * Copyright (c) 2005 Nathan Keynes.
7 *
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.
12 *
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.
17 */
19 #ifndef lxdream_video_gl_H
20 #define lxdream_video_gl_H 1
22 #ifdef __cplusplus
23 extern "C" {
24 #endif
26 /**
27 * Generic GL routine to draw the given frame buffer into a texture
28 */
29 gboolean gl_load_frame_buffer( frame_buffer_t frame, int tex_id );
31 /**
32 * Reset the GL state to its initial values
33 */
34 void gl_reset_state();
36 /**
37 * Generic GL routine to blank the display view with the specified colour.
38 */
39 void gl_display_blank( uint32_t colour );
41 /**
42 * Write a rectangular texture (GL_TEXTURE_RECTANGLE_ARB) to the display frame
43 */
44 void gl_display_render_buffer( render_buffer_t buffer );
46 /**
47 * Write a rectangular texture (GL_TEXTURE_RECTANGLE_ARB) to the display frame
48 */
49 void gl_texture_window( int width, int height, int tex_id, gboolean inverted );
51 /**
52 * Convert window coordinates to dreamcast device coords (640x480) using the
53 * same viewable area as gl_texture_window.
54 * If the coordinates are outside the viewable area, the result is -1,-1.
55 */
56 void gl_window_to_system_coords( int *x, int *y );
58 /**
59 * Generic GL read_render_buffer. This function assumes that the caller
60 * has already set the appropriate glReadBuffer(); in other words, unless
61 * there's only one buffer this needs to be wrapped.
62 */
63 gboolean gl_read_render_buffer( unsigned char *target, render_buffer_t buffer,
64 int rowstride, int colour_format );
67 /****** FBO handling (gl_fbo.c) ******/
68 gboolean gl_fbo_is_supported();
69 void gl_fbo_shutdown();
70 void gl_fbo_init( display_driver_t driver );
71 void gl_fbo_detach();
73 #ifdef __cplusplus
74 }
75 #endif
77 #endif /* !lxdream_video_gl_H */
.