src/mesa/drivers/dri/swrast/swrast_priv.h

   1 /*
   2  * Mesa 3-D graphics library
   3  * Version:  7.1
   4  *
   5  * Copyright (C) 1999-2008  Brian Paul   All Rights Reserved.
   6  *
   7  * Permission is hereby granted, free of charge, to any person obtaining a
   8  * copy of this software and associated documentation files (the "Software"),
   9  * to deal in the Software without restriction, including without limitation
  10  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
  11  * and/or sell copies of the Software, and to permit persons to whom the
  12  * Software is furnished to do so, subject to the following conditions:
  13  *
  14  * The above copyright notice and this permission notice shall be included
  15  * in all copies or substantial portions of the Software.
  16  *
  17  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
  18  * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  19  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
  20  * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
  21  * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
  22  * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  23  */
  24
  25 /*
  26  * Authors:
  27  *    George Sapountzis <gsap7@yahoo.gr>
  28  */
  29
  30
  31 #ifndef _SWRAST_PRIV_H
  32 #define _SWRAST_PRIV_H
  33
  34 #include <GL/gl.h>
  35 #include <GL/internal/dri_interface.h>
  36 #include "mtypes.h"
  37
  38 #define DEBUG_CORE      0
  39 #define DEBUG_SPAN      1
  40
  41 #if DEBUG_CORE
  42 #define TRACE _mesa_printf("--> %s\n", __FUNCTION__)
  43 #else
  44 #define TRACE
  45 #endif
  46
  47 #if DEBUG_SPAN
  48 #define TRACE_SPAN _mesa_printf("--> %s\n", __FUNCTION__)
  49 #else
  50 #define TRACE_SPAN
  51 #endif
  52
  53
  54 /**
  55  * Data types
  56  */
  57 struct __DRIscreenRec {
  58     int num;
  59
  60     const __DRIextension **extensions;
  61
  62     const __DRIswrastLoaderExtension *swrast_loader;
  63 };
  64
  65 struct __DRIcontextRec {
  66     GLcontext Base;
  67
  68     void *loaderPrivate;
  69
  70     __DRIscreen *driScreenPriv;
  71 };
  72
  73 struct __DRIdrawableRec {
  74     GLframebuffer Base;
  75
  76     void *loaderPrivate;
  77
  78     __DRIscreen *driScreenPriv;
  79
  80     char *row;
  81 };
  82
  83 struct swrast_renderbuffer {
  84     struct gl_renderbuffer Base;
  85
  86     GLuint pitch;
  87 };
  88
  89 static inline __DRIcontext *
  90 swrast_context(GLcontext *ctx)
  91 {
  92     return (__DRIcontext *) ctx;
  93 }
  94
  95 static inline __DRIdrawable *
  96 swrast_drawable(GLframebuffer *fb)
  97 {
  98     return (__DRIdrawable *) fb;
  99 }
 100
 101 static inline struct swrast_renderbuffer *
 102 swrast_renderbuffer(struct gl_renderbuffer *rb)
 103 {
 104     return (struct swrast_renderbuffer *) rb;
 105 }
 106
 107
 108 /**
 109  * Pixel formats we support
 110  */
 111 #define PF_CI8        1         /**< Color Index mode */
 112 #define PF_A8R8G8B8   2         /**< 32-bit TrueColor:  8-A, 8-R, 8-G, 8-B bits */
 113 #define PF_R5G6B5     3         /**< 16-bit TrueColor:  5-R, 6-G, 5-B bits */
 114 #define PF_R3G3B2     4         /**<  8-bit TrueColor:  3-R, 3-G, 2-B bits */
 115
 116
 117 /* swrast_span.c */
 118
 119 extern void
 120 swrast_set_span_funcs_ximage(struct swrast_renderbuffer *xrb,
 121                              GLuint pixel_format);
 122
 123 extern void
 124 swrast_set_span_funcs_pixmap(struct swrast_renderbuffer *xrb,
 125                              GLuint pixel_format);
 126
 127 #endif /* _SWRAST_PRIV_H_ */