aboutsummaryrefslogtreecommitdiff
path: root/mesalib/src/mesa/drivers/dri/swrast/swrast_priv.h
blob: b57012aefdfa30c1a7958d22f7a4492f0aeafba0 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
/*
 * Mesa 3-D graphics library
 * Version:  7.1
 *
 * Copyright (C) 1999-2008  Brian Paul   All Rights Reserved.
 * Copyright 2008, 2010 George Sapountzis <gsapountzis@gmail.com>
 *
 * Permission is hereby granted, free of charge, to any person obtaining a
 * copy of this software and associated documentation files (the "Software"),
 * to deal in the Software without restriction, including without limitation
 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
 * and/or sell copies of the Software, and to permit persons to whom the
 * Software is furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included
 * in all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
 * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
 * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 */


#ifndef _SWRAST_PRIV_H
#define _SWRAST_PRIV_H

#include <GL/gl.h>
#include <GL/internal/dri_interface.h>
#include "main/mtypes.h"
#include "dri_util.h"


/**
 * Debugging
 */
#define DEBUG_CORE	0
#define DEBUG_SPAN	0

#if DEBUG_CORE
#define TRACE printf("--> %s\n", __FUNCTION__)
#else
#define TRACE
#endif

#if DEBUG_SPAN
#define TRACE_SPAN printf("--> %s\n", __FUNCTION__)
#else
#define TRACE_SPAN
#endif


/**
 * Data types
 */
struct dri_context
{
    /* mesa, base class, must be first */
    struct gl_context Base;

    /* dri */
    __DRIcontext *cPriv;
};

static INLINE struct dri_context *
dri_context(__DRIcontext * driContextPriv)
{
    return (struct dri_context *)driContextPriv->driverPrivate;
}

static INLINE struct dri_context *
swrast_context(struct gl_context *ctx)
{
    return (struct dri_context *) ctx;
}

struct dri_drawable
{
    /* mesa, base class, must be first */
    struct gl_framebuffer Base;

    /* dri */
    __DRIdrawable *dPriv;

    /* scratch row for optimized front-buffer rendering */
    char *row;
};

static INLINE struct dri_drawable *
dri_drawable(__DRIdrawable * driDrawPriv)
{
    return (struct dri_drawable *)driDrawPriv->driverPrivate;
}

static INLINE struct dri_drawable *
swrast_drawable(struct gl_framebuffer *fb)
{
    return (struct dri_drawable *) fb;
}

struct swrast_renderbuffer {
    struct gl_renderbuffer Base;
    __DRIdrawable *dPriv;

    /* GL_MAP_*_BIT, used for mapping of front buffer. */
    GLbitfield map_mode;
   int map_x, map_y, map_w, map_h;

    /* renderbuffer pitch (in bytes) */
    GLuint pitch;
   /* bits per pixel of storage */
    GLuint bpp;
};

static INLINE struct swrast_renderbuffer *
swrast_renderbuffer(struct gl_renderbuffer *rb)
{
    return (struct swrast_renderbuffer *) rb;
}


/**
 * Pixel formats we support
 */
#define PF_A8R8G8B8   1		/**< 32bpp TrueColor:  8-A, 8-R, 8-G, 8-B bits */
#define PF_R5G6B5     2		/**< 16bpp TrueColor:  5-R, 6-G, 5-B bits */
#define PF_R3G3B2     3		/**<  8bpp TrueColor:  3-R, 3-G, 2-B bits */
#define PF_X8R8G8B8   4		/**< 32bpp TrueColor:  8-R, 8-G, 8-B bits */


/* swrast_span.c */

extern void
swrast_set_span_funcs_back(struct swrast_renderbuffer *xrb,
			   GLuint pixel_format);

extern void
swrast_set_span_funcs_front(struct swrast_renderbuffer *xrb,
			    GLuint pixel_format);

#endif /* _SWRAST_PRIV_H_ */