src/mesa/drivers/dri/common/drisw_util.h

   1 /*
   2  * Copyright 1998-1999 Precision Insight, Inc., Cedar Park, Texas.
   3  * All Rights Reserved.
   4  * Copyright 2010 George Sapountzis <gsapountzis@gmail.com>
   5  *
   6  * Permission is hereby granted, free of charge, to any person obtaining a
   7  * copy of this software and associated documentation files (the "Software"),
   8  * to deal in the Software without restriction, including without limitation
   9  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
  10  * and/or sell copies of the Software, and to permit persons to whom the
  11  * Software is furnished to do so, subject to the following conditions:
  12  *
  13  * The above copyright notice and this permission notice shall be included
  14  * in all copies or substantial portions of the Software.
  15  *
  16  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
  17  * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  18  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
  19  * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
  20  * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
  21  * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  22  */
  23
  24 /**
  25  * @file
  26  * Binding of the DRI interface (dri_interface.h) for DRISW.
  27  *
  28  * The DRISW structs are 'base classes' of the corresponding DRI1 / DRI2 (DRM)
  29  * structs. The bindings for SW and DRM can be unified by making the DRM structs
  30  * 'sub-classes' of the SW structs, either proper or with field re-ordering.
  31  *
  32  * The code can also be unified but that requires cluttering the common code
  33  * with ifdef's and guarding with (__DRIscreen::fd >= 0) for DRM.
  34  */
  35
  36 #ifndef _DRISW_UTIL_H
  37 #define _DRISW_UTIL_H
  38
  39 #include <GL/gl.h>
  40 #include <GL/internal/glcore.h>
  41 #include <GL/internal/dri_interface.h>
  42 typedef struct _drmLock drmLock;
  43
  44
  45 /**
  46  * Extensions
  47  */
  48 extern const __DRIcoreExtension driCoreExtension;
  49 extern const __DRIswrastExtension driSWRastExtension;
  50
  51
  52 /**
  53  * Driver callback functions
  54  */
  55 struct __DriverAPIRec {
  56     const __DRIconfig **(*InitScreen) (__DRIscreen * priv);
  57
  58     void (*DestroyScreen)(__DRIscreen *driScrnPriv);
  59
  60     GLboolean (*CreateContext)(const __GLcontextModes *glVis,
  61                                __DRIcontext *driContextPriv,
  62                                void *sharedContextPrivate);
  63
  64     void (*DestroyContext)(__DRIcontext *driContextPriv);
  65
  66     GLboolean (*CreateBuffer)(__DRIscreen *driScrnPriv,
  67                               __DRIdrawable *driDrawPriv,
  68                               const __GLcontextModes *glVis,
  69                               GLboolean pixmapBuffer);
  70
  71     void (*DestroyBuffer)(__DRIdrawable *driDrawPriv);
  72
  73     void (*SwapBuffers)(__DRIdrawable *driDrawPriv);
  74
  75     GLboolean (*MakeCurrent)(__DRIcontext *driContextPriv,
  76                              __DRIdrawable *driDrawPriv,
  77                              __DRIdrawable *driReadPriv);
  78
  79     GLboolean (*UnbindContext)(__DRIcontext *driContextPriv);
  80 };
  81
  82 extern const struct __DriverAPIRec driDriverAPI;
  83
  84
  85 /**
  86  * Data types
  87  */
  88 struct __DRIscreenRec {
  89     int myNum;
  90
  91     int fd;
  92
  93     void *private;
  94
  95     const __DRIextension **extensions;
  96
  97     const __DRIswrastLoaderExtension *swrast_loader;
  98 };
  99
 100 struct __DRIcontextRec {
 101
 102     void *driverPrivate;
 103
 104     void *loaderPrivate;
 105
 106     __DRIdrawable *driDrawablePriv;
 107
 108     __DRIdrawable *driReadablePriv;
 109
 110     __DRIscreen *driScreenPriv;
 111 };
 112
 113 struct __DRIdrawableRec {
 114
 115     void *driverPrivate;
 116
 117     void *loaderPrivate;
 118
 119     __DRIcontext *driContextPriv;
 120
 121     __DRIscreen *driScreenPriv;
 122
 123     int refcount;
 124
 125     /* gallium */
 126     unsigned int lastStamp;
 127
 128     int w;
 129     int h;
 130 };
 131
 132 #endif /* _DRISW_UTIL_H */