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

   1 /*
   2  * Mesa 3-D graphics library
   3  *
   4  * Copyright (C) 1999-2008  Brian Paul   All Rights Reserved.
   5  * Copyright 2008, 2010 George Sapountzis <gsapountzis@gmail.com>
   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  * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
  21  * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
  22  * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
  23  * OTHER DEALINGS IN THE SOFTWARE.
  24  */
  25
  26
  27 #ifndef _SWRAST_PRIV_H
  28 #define _SWRAST_PRIV_H
  29
  30 #include <GL/gl.h>
  31 #include <GL/internal/dri_interface.h>
  32 #include "main/mtypes.h"
  33 #include "dri_util.h"
  34 #include "swrast/s_context.h"
  35
  36
  37 /**
  38  * Debugging
  39  */
  40 #define DEBUG_CORE      0
  41 #define DEBUG_SPAN      0
  42
  43 #if DEBUG_CORE
  44 #define TRACE printf("--> %s\n", __FUNCTION__)
  45 #else
  46 #define TRACE
  47 #endif
  48
  49 #if DEBUG_SPAN
  50 #define TRACE_SPAN printf("--> %s\n", __FUNCTION__)
  51 #else
  52 #define TRACE_SPAN
  53 #endif
  54
  55
  56 /**
  57  * Data types
  58  */
  59 struct dri_context
  60 {
  61     /* mesa, base class, must be first */
  62     struct gl_context Base;
  63
  64     /* dri */
  65     __DRIcontext *cPriv;
  66 };
  67
  68 static inline struct dri_context *
  69 dri_context(__DRIcontext * driContextPriv)
  70 {
  71     return (struct dri_context *)driContextPriv->driverPrivate;
  72 }
  73
  74 static inline struct dri_context *
  75 swrast_context(struct gl_context *ctx)
  76 {
  77     return (struct dri_context *) ctx;
  78 }
  79
  80 struct dri_drawable
  81 {
  82     /* mesa, base class, must be first */
  83     struct gl_framebuffer Base;
  84
  85     /* dri */
  86     __DRIdrawable *dPriv;
  87
  88     /* scratch row for optimized front-buffer rendering */
  89     char *row;
  90 };
  91
  92 static inline struct dri_drawable *
  93 dri_drawable(__DRIdrawable * driDrawPriv)
  94 {
  95     return (struct dri_drawable *)driDrawPriv->driverPrivate;
  96 }
  97
  98 static inline struct dri_drawable *
  99 swrast_drawable(struct gl_framebuffer *fb)
 100 {
 101     return (struct dri_drawable *) fb;
 102 }
 103
 104 struct dri_swrast_renderbuffer {
 105     struct swrast_renderbuffer Base;
 106     __DRIdrawable *dPriv;
 107
 108     /* GL_MAP_*_BIT, used for mapping of front buffer. */
 109     GLbitfield map_mode;
 110    int map_x, map_y, map_w, map_h;
 111
 112     /* renderbuffer pitch (in bytes) */
 113     GLuint pitch;
 114    /* bits per pixel of storage */
 115     GLuint bpp;
 116 };
 117
 118 static inline struct dri_swrast_renderbuffer *
 119 dri_swrast_renderbuffer(struct gl_renderbuffer *rb)
 120 {
 121     return (struct dri_swrast_renderbuffer *) rb;
 122 }
 123
 124
 125 /**
 126  * Pixel formats we support
 127  */
 128 #define PF_A8R8G8B8   1         /**< 32bpp TrueColor:  8-A, 8-R, 8-G, 8-B bits */
 129 #define PF_R5G6B5     2         /**< 16bpp TrueColor:  5-R, 6-G, 5-B bits */
 130 #define PF_R3G3B2     3         /**<  8bpp TrueColor:  3-R, 3-G, 2-B bits */
 131 #define PF_X8R8G8B8   4         /**< 32bpp TrueColor:  8-R, 8-G, 8-B bits */
 132
 133
 134 #endif /* _SWRAST_PRIV_H_ */