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
|
/**************************************************************************
*
* Copyright 2007 VMware, Inc., Bismarck, ND., USA
* All Rights Reserved.
*
* 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, sub license, 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 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 NON-INFRINGEMENT. IN NO EVENT SHALL
* THE COPYRIGHT HOLDERS, AUTHORS AND/OR ITS SUPPLIERS 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.
*
* The above copyright notice and this permission notice (including the
* next paragraph) shall be included in all copies or substantial portions
* of the Software.
*
*
**************************************************************************/
/*
* Authors:
* Keith Whitwell
*/
#include "pipe/p_compiler.h"
#include "util/u_debug.h"
#include "sw/xlib/xlib_sw_winsys.h"
#include "xm_public.h"
#include "state_tracker/st_gl_api.h"
#include "target-helpers/inline_sw_helper.h"
#include "target-helpers/inline_debug_helper.h"
/* Helper function to build a subset of a driver stack consisting of
* one of the software rasterizers (llvmpipe, softpipe) and the
* xlib winsys.
*/
static struct pipe_screen *
swrast_xlib_create_screen( Display *display )
{
struct sw_winsys *winsys;
struct pipe_screen *screen = NULL;
/* Create the underlying winsys, which performs presents to Xlib
* drawables:
*/
winsys = xlib_create_sw_winsys( display );
if (winsys == NULL)
return NULL;
/* Create a software rasterizer on top of that winsys:
*/
screen = sw_screen_create( winsys );
if (screen == NULL)
goto fail;
/* Inject any wrapping layers we want to here:
*/
return debug_screen_wrap( screen );
fail:
if (winsys)
winsys->destroy( winsys );
return NULL;
}
static struct xm_driver xlib_driver =
{
.create_pipe_screen = swrast_xlib_create_screen,
.create_st_api = st_gl_api_create,
};
/* Build the rendering stack.
*/
static void _init( void ) __attribute__((constructor));
static void _init( void )
{
/* Initialize the xlib libgl code, pass in the winsys:
*/
xmesa_set_driver( &xlib_driver );
}
/***********************************************************************
*
* Butt-ugly hack to convince the linker not to throw away public GL
* symbols (they are all referenced from getprocaddress, I guess).
*/
extern void (*linker_foo(const unsigned char *procName))();
extern void (*glXGetProcAddress(const unsigned char *procName))();
extern void (*linker_foo(const unsigned char *procName))()
{
return glXGetProcAddress(procName);
}
/**
* When GLX_INDIRECT_RENDERING is defined, some symbols are missing in
* libglapi.a. We need to define them here.
*/
#ifdef GLX_INDIRECT_RENDERING
#define GL_GLEXT_PROTOTYPES
#include "main/glheader.h"
#include "glapi/glapi.h"
#include "glapi/glapitable.h"
#if defined(USE_MGL_NAMESPACE)
#define NAME(func) mgl##func
#else
#define NAME(func) gl##func
#endif
#define DISPATCH(FUNC, ARGS, MESSAGE) \
GET_DISPATCH()->FUNC ARGS
#define RETURN_DISPATCH(FUNC, ARGS, MESSAGE) \
return GET_DISPATCH()->FUNC ARGS
/* skip normal ones */
#define _GLAPI_SKIP_NORMAL_ENTRY_POINTS
#include "glapi/glapitemp.h"
#endif /* GLX_INDIRECT_RENDERING */
|
