lxdream 0.9.1| filename | src/pvr2/glutil.h |
| changeset | 1258:f8a9c0fd2abb |
| prev | 1256:a9d29fe74bf3 |
| next | 1259:8a69f4d0b31d |
| author | nkeynes |
| date | Mon Mar 05 11:41:03 2012 +1000 (12 years ago) |
| permissions | -rw-r--r-- |
| last change | Small cleanups: Refactor the post-windowing setup into gl_init_driver() in video_gl.c Move gl_sl.c into src/drivers and tidy up a bit. Fix OS X compiling plugins with -mdynamic-no-pic |
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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 gboolean isOpenGLES2();
38 /**
39 * Dump GL information to the output stream, usually for debugging purposes
40 */
41 void glPrintInfo( FILE *out );
43 /**
44 * Check for a GL error and print a message if there is one
45 * @param context If not null, a string to be printed along side an error message
46 * @return FALSE if there was an error, otherwise TRUE
47 */
48 gboolean gl_check_error( const char *context );
49 /**
50 * Test if secondary color (GL_COLOR_SUM) is supported.
51 */
52 gboolean isGLSecondaryColorSupported();
54 gboolean isGLVertexBufferSupported();
55 gboolean isGLVertexRangeSupported();
56 gboolean isGLPixelBufferSupported();
57 gboolean isGLMultitextureSupported();
58 gboolean isGLMirroredTextureSupported();
59 gboolean isGLShaderSupported();
60 GLint glGetMaxColourAttachments();
62 /****** Extension variant wrangling *****/
64 #if defined(GL_MIRRORED_REPEAT_ARB) && !defined(GL_MIRRORED_REPEAT)
65 #define GL_MIRRORED_REPEAT GL_MIRRORED_REPEAT_ARB
66 #endif
68 #if defined(GL_MAX_TEXTURE_UNITS_ARB) && !defined(GL_MAX_TEXTURE_UNITS)
69 #define GL_MAX_TEXTURE_UNITS GL_MAX_TEXTURE_UNITS_ARB
70 #endif
72 #if defined(GL_FRAMEBUFFER_EXT) && !defined(GL_FRAMEBUFFER)
73 #define GL_FRAMEBUFFER GL_FRAMEBUFFER_EXT
74 #endif
76 #if defined(GL_RENDERBUFFER_EXT) && !defined(GL_RENDERBUFFER)
77 #define GL_RENDERBUFFER GL_RENDERBUFFER_EXT
78 #endif
80 #if defined(GL_COLOR_ATTACHMENT0_EXT) && !defined(GL_COLOR_ATTACHMENT0)
81 #define GL_COLOR_ATTACHMENT0 GL_COLOR_ATTACHMENT0_EXT
82 #endif
84 #if defined(GL_MAX_COLOR_ATTACHMENTS_EXT) && !defined(GL_MAX_COLOR_ATTACHMENTS)
85 #define GL_MAX_COLOR_ATTACHMENTS GL_MAX_COLOR_ATTACHMENTS_EXT
86 #endif
88 #if defined(GL_STENCIL_ATTACHMENT_EXT) && !defined(GL_STENCIL_ATTACHMENT)
89 #define GL_STENCIL_ATTACHMENT GL_STENCIL_ATTACHMENT_EXT
90 #endif
92 #if defined(GL_DEPTH_ATTACHMENT_EXT) && !defined(GL_DEPTH_ATTACHMENT)
93 #define GL_DEPTH_ATTACHMENT GL_DEPTH_ATTACHMENT_EXT
94 #endif
96 #if defined(GL_DEPTH_COMPONENT24_OES) && !defined(GL_DEPTH_COMPONENT24)
97 #define GL_DEPTH_COMPONENT24 GL_DEPTH_COMPONENT24_OES
98 #endif
100 #ifndef GL_DEPTH24_STENCIL8
101 #if defined(GL_DEPTH24_STENCIL8_EXT)
102 #define GL_DEPTH24_STENCIL8 GL_DEPTH24_STENCIL8_EXT
103 #elif defined(GL_DEPTH24_STENCIL8_OES)
104 #define GL_DEPTH24_STENCIL8 GL_DEPTH24_STENCIL8_OES
105 #endif
106 #endif
108 #if defined(GL_FRAMEBUFFER_COMPLETE_EXT) && !defined(GL_FRAMEBUFFER_COMPLETE)
109 #define GL_FRAMEBUFFER_COMPLETE GL_FRAMEBUFFER_COMPLETE_EXT
110 #endif
112 #if defined(GL_UNSIGNED_SHORT_1_5_5_5_REV_EXT) && !defined(GL_UNSIGNED_SHORT_1_5_5_5_REV)
113 #define GL_UNSIGNED_SHORT_1_5_5_5_REV GL_UNSIGNED_SHORT_1_5_5_5_REV_EXT
114 #endif
116 #if defined(GL_UNSIGNED_SHORT_4_4_4_4_REV_EXT) && !defined(GL_UNSIGNED_SHORT_4_4_4_4_REV)
117 #define GL_UNSIGNED_SHORT_4_4_4_4_REV GL_UNSIGNED_SHORT_4_4_4_4_REV_EXT
118 #endif
120 #if defined(GL_BGRA_EXT) && !defined(GL_BGRA)
121 #define GL_BGRA GL_BGRA_EXT
122 #endif
124 #if defined(GL_SHADING_LANGUAGE_VERSION_ARB) && !defined(GL_SHADING_LANGUAGE_VERSION)
125 #define GL_SHADING_LANGUAGE_VERSION GL_SHADING_LANGUAGE_VERSION_ARB
126 #endif
129 #if defined(HAVE_OPENGL_FBO_EXT) && !defined(HAVE_OPENGL_FBO)
130 #define glGenFramebuffers glGenFramebuffersEXT
131 #define glGenRenderbuffers glGenRenderbuffersEXT
132 #define glBindFramebuffer glBindFramebufferEXT
133 #define glDeleteFramebuffers glDeleteFramebuffersEXT
134 #define glDeleteRenderbuffers glDeleteRenderbuffersEXT
135 #define glBindFramebuffer glBindFramebufferEXT
136 #define glBindRenderbuffer glBindRenderbufferEXT
137 #define glRenderbufferStorage glRenderbufferStorageEXT
138 #define glFramebufferRenderbuffer glFramebufferRenderbufferEXT
139 #define glFramebufferTexture2D glFramebufferTexture2DEXT
140 #define glCheckFramebufferStatus glCheckFramebufferStatusEXT
141 #endif
144 /****** Shader handling (gl_sl.c) *****/
145 void glsl_clear_shader();
147 /* Define an orthographic transform matrix, given the bounding box (assuming origin at 0) */
148 void defineOrthoMatrix( GLfloat *matrix, GLfloat width, GLfloat height, GLfloat znear, GLfloat zfar );
150 /* Convenience formatting function for driver use */
151 void fprint_extensions( FILE *out, const char *extensions );
153 #ifdef __cplusplus
154 }
155 #endif
157 #endif /* !lxdream_glutil_H */
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