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", __func__)
45 #else
46 #define TRACE
47 #endif
48
49 #if DEBUG_SPAN
50 #define TRACE_SPAN printf("--> %s\n", __func__)
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 *
dri_context(__DRIcontext * driContextPriv)69 dri_context(__DRIcontext * driContextPriv)
70 {
71 return (struct dri_context *)driContextPriv->driverPrivate;
72 }
73
74 static inline struct dri_context *
swrast_context(struct gl_context * ctx)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 *
dri_drawable(__DRIdrawable * driDrawPriv)93 dri_drawable(__DRIdrawable * driDrawPriv)
94 {
95 return (struct dri_drawable *)driDrawPriv->driverPrivate;
96 }
97
98 static inline struct dri_drawable *
swrast_drawable(struct gl_framebuffer * fb)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 *
dri_swrast_renderbuffer(struct gl_renderbuffer * rb)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_ */
135