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