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 */
59struct dri_context
60{
61    /* mesa, base class, must be first */
62    struct gl_context Base;
63
64    /* dri */
65    __DRIcontext *cPriv;
66};
67
68static inline struct dri_context *
69dri_context(__DRIcontext * driContextPriv)
70{
71    return (struct dri_context *)driContextPriv->driverPrivate;
72}
73
74static inline struct dri_context *
75swrast_context(struct gl_context *ctx)
76{
77    return (struct dri_context *) ctx;
78}
79
80struct 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
92static inline struct dri_drawable *
93dri_drawable(__DRIdrawable * driDrawPriv)
94{
95    return (struct dri_drawable *)driDrawPriv->driverPrivate;
96}
97
98static inline struct dri_drawable *
99swrast_drawable(struct gl_framebuffer *fb)
100{
101    return (struct dri_drawable *) fb;
102}
103
104struct 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
118static inline struct dri_swrast_renderbuffer *
119dri_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