filename | src/pvr2/glutil.h |
changeset | 1219:3966d3e55351 |
prev | 1210:79bbd30363f4 |
next | 1222:a4545699a82b |
author | nkeynes |
date | Mon Feb 13 21:43:22 2012 +1000 (12 years ago) |
permissions | -rw-r--r-- |
last change | Remove unused pvr2_poly_texblend array Support GL_MAX_TEXTURE_UNITS and GL_MAX_IMAGE_TEXTURE_UNITS Protected against undefined GL_STACK_OVERFLOW |
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1 /**
2 * $Id$
3 *
4 * GL-based support functions
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_glutil_H
20 #define lxdream_glutil_H
22 #include <stdio.h>
23 #include "display.h"
25 #ifdef __cplusplus
26 extern "C" {
27 #endif
29 /**
30 * Test if a specific extension is supported. From opengl.org
31 * @param extension extension name to check for
32 * @return TRUE if supported, otherwise FALSE.
33 */
34 gboolean isGLExtensionSupported( const char *extension );
36 /**
37 * Dump GL information to the output stream, usually for debugging purposes
38 */
39 void glPrintInfo( FILE *out );
41 /**
42 * Check for a GL error and print a message if there is one
43 * @param context If not null, a string to be printed along side an error message
44 * @return FALSE if there was an error, otherwise TRUE
45 */
46 gboolean gl_check_error( const char *context );
47 /**
48 * Test if secondary color (GL_COLOR_SUM) is supported.
49 */
50 gboolean isGLSecondaryColorSupported();
52 gboolean isGLVertexBufferSupported();
53 gboolean isGLVertexRangeSupported();
54 gboolean isGLPixelBufferSupported();
55 gboolean isGLMultitextureSupported();
56 gboolean isGLMirroredTextureSupported();
58 /****** Extension variant wrangling *****/
60 #if defined(GL_MIRRORED_REPEAT_ARB) && !defined(GL_MIRRORED_REPEAT)
61 #define GL_MIRRORED_REPEAT GL_MIRRORED_REPEAT_ARB
62 #endif
64 #if defined(GL_MAX_TEXTURE_UNITS_ARB) && !defined(GL_MAX_TEXTURE_UNITS)
65 #define GL_MAX_TEXTURE_UNITS GL_MAX_TEXTURE_UNITS_ARB
66 #endif
68 #if defined(GL_FRAMEBUFFER_EXT) && !defined(GL_FRAMEBUFFER)
69 #define GL_FRAMEBUFFER GL_FRAMEBUFFER_EXT
70 #endif
72 #if defined(GL_RENDERBUFFER_EXT) && !defined(GL_RENDERBUFFER)
73 #define GL_RENDERBUFFER GL_RENDERBUFFER_EXT
74 #endif
76 #if defined(GL_COLOR_ATTACHMENT0_EXT) && !defined(GL_COLOR_ATTACHMENT0)
77 #define GL_COLOR_ATTACHMENT0 GL_COLOR_ATTACHMENT0_EXT
78 #endif
80 #if defined(GL_MAX_COLOR_ATTACHMENTS_EXT) && !defined(GL_MAX_COLOR_ATTACHMENTS)
81 #define GL_MAX_COLOR_ATTACHMENTS GL_MAX_COLOR_ATTACHMENTS_EXT
82 #endif
84 #if defined(GL_STENCIL_ATTACHMENT_EXT) && !defined(GL_STENCIL_ATTACHMENT)
85 #define GL_STENCIL_ATTACHMENT GL_STENCIL_ATTACHMENT_EXT
86 #endif
88 #if defined(GL_DEPTH_ATTACHMENT_EXT) && !defined(GL_DEPTH_ATTACHMENT)
89 #define GL_DEPTH_ATTACHMENT GL_DEPTH_ATTACHMENT_EXT
90 #endif
92 #if defined(GL_FRAMEBUFFER_COMPLETE_EXT) && !defined(GL_FRAMEBUFFER_COMPLETE)
93 #define GL_FRAMEBUFFER_COMPLETE GL_FRAMEBUFFER_COMPLETE_EXT
94 #endif
96 #if defined(HAVE_OPENGL_FBO_EXT) && !defined(HAVE_OPENGL_FBO)
97 #define glGenFramebuffers glGenFramebuffersEXT
98 #define glGenRenderbuffers glGenRenderbuffersEXT
99 #define glBindFramebuffer glBindFramebufferEXT
100 #define glDeleteFramebuffers glDeleteFramebuffersEXT
101 #define glDeleteRenderbuffers glDeleteRenderbuffersEXT
102 #define glBindFramebuffer glBindFramebufferEXT
103 #define glBindRenderbuffer glBindRenderbufferEXT
104 #define glRenderbufferStorage glRenderbufferStorageEXT
105 #define glFramebufferRenderbuffer glFramebufferRenderbufferEXT
106 #define glFramebufferTexture2D glFramebufferTexture2DEXT
107 #define glCheckFramebufferStatus glCheckFramebufferStatusEXT
108 #endif
111 /****** Shader handling (gl_sl.c) *****/
112 gboolean glsl_is_supported(void);
113 const char *glsl_get_version(void);
114 gboolean glsl_load_shaders( );
115 void glsl_unload_shaders(void);
116 void glsl_clear_shader();
118 /* Convenience formatting function for driver use */
119 void fprint_extensions( FILE *out, const char *extensions );
121 #ifdef __cplusplus
122 }
123 #endif
125 #endif /* !lxdream_glutil_H */
.