1 #ifdef HAVE_DIX_CONFIG_H 2 #include <dix-config.h> 3 #endif 4 5 #ifndef _GLX_context_h_ 6 #define _GLX_context_h_ 7 8 /* 9 * SGI FREE SOFTWARE LICENSE B (Version 2.0, Sept. 18, 2008) 10 * Copyright (C) 1991-2000 Silicon Graphics, Inc. All Rights Reserved. 11 * 12 * Permission is hereby granted, free of charge, to any person obtaining a 13 * copy of this software and associated documentation files (the "Software"), 14 * to deal in the Software without restriction, including without limitation 15 * the rights to use, copy, modify, merge, publish, distribute, sublicense, 16 * and/or sell copies of the Software, and to permit persons to whom the 17 * Software is furnished to do so, subject to the following conditions: 18 * 19 * The above copyright notice including the dates of first publication and 20 * either this permission notice or a reference to 21 * http://oss.sgi.com/projects/FreeB/ 22 * shall be included in all copies or substantial portions of the Software. 23 * 24 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS 25 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 26 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL 27 * SILICON GRAPHICS, INC. BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, 28 * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF 29 * OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE 30 * SOFTWARE. 31 * 32 * Except as contained in this notice, the name of Silicon Graphics, Inc. 33 * shall not be used in advertising or otherwise to promote the sale, use or 34 * other dealings in this Software without prior written authorization from 35 * Silicon Graphics, Inc. 36 */ 37 38 struct __GLXcontext { 39 void (*destroy) (__GLXcontext * context); 40 int (*makeCurrent) (__GLXcontext * context); 41 int (*loseCurrent) (__GLXcontext * context); 42 int (*copy) (__GLXcontext * dst, __GLXcontext * src, unsigned long mask); 43 Bool (*wait) (__GLXcontext * context, __GLXclientState * cl, int *error); 44 45 /* EXT_texture_from_pixmap */ 46 int (*bindTexImage) (__GLXcontext * baseContext, 47 int buffer, __GLXdrawable * pixmap); 48 int (*releaseTexImage) (__GLXcontext * baseContext, 49 int buffer, __GLXdrawable * pixmap); 50 51 /* 52 ** list of context structs 53 */ 54 __GLXcontext *next; 55 56 /* 57 ** config struct for this context 58 */ 59 __GLXconfig *config; 60 61 /* 62 ** Pointer to screen info data for this context. This is set 63 ** when the context is created. 64 */ 65 __GLXscreen *pGlxScreen; 66 67 /* 68 ** If this context is current for a client, this will be that client 69 */ 70 ClientPtr currentClient; 71 72 /* 73 ** The XID of this context. 74 */ 75 XID id; 76 77 /* 78 ** The XID of the shareList context. 79 */ 80 XID share_id; 81 82 /* 83 ** Whether this context's ID still exists. 84 */ 85 GLboolean idExists; 86 87 /* 88 ** Whether this context is a direct rendering context. 89 */ 90 GLboolean isDirect; 91 92 /* 93 ** Current rendering mode for this context. 94 */ 95 GLenum renderMode; 96 97 /** 98 * Reset notification strategy used when a GPU reset occurs. 99 */ 100 GLenum resetNotificationStrategy; 101 102 /** 103 * Context release behavior 104 */ 105 GLenum releaseBehavior; 106 107 /** 108 * Context render type 109 */ 110 int renderType; 111 112 /* 113 ** Buffers for feedback and selection. 114 */ 115 GLfloat *feedbackBuf; 116 GLint feedbackBufSize; /* number of elements allocated */ 117 GLuint *selectBuf; 118 GLint selectBufSize; /* number of elements allocated */ 119 120 /* 121 ** Keep track of large rendering commands, which span multiple requests. 122 */ 123 GLint largeCmdBytesSoFar; /* bytes received so far */ 124 GLint largeCmdBytesTotal; /* total bytes expected */ 125 GLint largeCmdRequestsSoFar; /* requests received so far */ 126 GLint largeCmdRequestsTotal; /* total requests expected */ 127 GLbyte *largeCmdBuf; 128 GLint largeCmdBufSize; 129 130 /* 131 ** The drawable private this context is bound to 132 */ 133 __GLXdrawable *drawPriv; 134 __GLXdrawable *readPriv; 135 }; 136 137 void __glXContextDestroy(__GLXcontext * context); 138 139 extern int validGlxScreen(ClientPtr client, int screen, 140 __GLXscreen ** pGlxScreen, int *err); 141 142 extern int validGlxFBConfig(ClientPtr client, __GLXscreen * pGlxScreen, 143 XID id, __GLXconfig ** config, int *err); 144 145 extern int validGlxContext(ClientPtr client, XID id, int access_mode, 146 __GLXcontext ** context, int *err); 147 148 extern __GLXcontext *__glXdirectContextCreate(__GLXscreen * screen, 149 __GLXconfig * modes, 150 __GLXcontext * shareContext); 151 152 #endif /* !__GLX_context_h__ */ 153