stw_device.c revision 0e471ac45771393ea74178eb98f41b904168cf64 
1/**************************************************************************
2 *
3 * Copyright 2008 Tungsten Graphics, Inc., Cedar Park, Texas.
4 * All Rights Reserved.
5 *
6 * Permission is hereby granted, free of charge, to any person obtaining a
7 * copy of this software and associated documentation files (the
8 * "Software"), to deal in the Software without restriction, including
9 * without limitation the rights to use, copy, modify, merge, publish,
10 * distribute, sub license, and/or sell copies of the Software, and to
11 * permit persons to whom the Software is furnished to do so, subject to
12 * the following conditions:
13 *
14 * The above copyright notice and this permission notice (including the
15 * next paragraph) shall be included in all copies or substantial portions
16 * of the Software.
17 *
18 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
19 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
20 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
21 * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR
22 * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
23 * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
24 * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
25 *
26 **************************************************************************/
27
28#include <windows.h>
29
30#include "pipe/p_debug.h"
31#include "pipe/p_winsys.h"
32#include "pipe/p_screen.h"
33
34#include "stw_device.h"
35#include "stw_winsys.h"
36#include "stw_pixelformat.h"
37
38
39struct stw_device *stw_dev = NULL;
40
41
42/**
43 * XXX: Dispatch pipe_winsys::flush_front_buffer to our
44 * stw_winsys::flush_front_buffer.
45 */
46static void
47st_flush_frontbuffer(struct pipe_winsys *ws,
48                     struct pipe_surface *surf,
49                     void *context_private )
50{
51   const struct stw_winsys *stw_winsys = stw_dev->stw_winsys;
52   struct pipe_winsys *winsys = stw_dev->screen->winsys;
53   HDC hdc = (HDC)context_private;
54
55   stw_winsys->flush_frontbuffer(winsys, surf, hdc);
56}
57
58
59boolean
60st_init(const struct stw_winsys *stw_winsys)
61{
62   static struct stw_device stw_dev_storage;
63
64   assert(!stw_dev);
65
66   stw_dev = &stw_dev_storage;
67   memset(stw_dev, 0, sizeof(*stw_dev));
68
69   stw_dev->stw_winsys = stw_winsys;
70
71   stw_dev->screen = stw_winsys->create_screen();
72   if(!stw_dev->screen)
73      goto error1;
74
75   /* XXX: pipe_winsys::flush_frontbuffer should go away */
76   stw_dev->screen->winsys->flush_frontbuffer = st_flush_frontbuffer;
77
78   pixelformat_init();
79
80   return TRUE;
81
82error1:
83   stw_dev = NULL;
84   return FALSE;
85}
86
87
88void
89st_cleanup(void)
90{
91   DHGLRC dhglrc;
92
93   if(!stw_dev)
94      return;
95
96   /* Ensure all contexts are destroyed */
97   for (dhglrc = 1; dhglrc <= DRV_CONTEXT_MAX; dhglrc++)
98      if (stw_dev->ctx_array[dhglrc - 1].hglrc)
99         DrvDeleteContext( dhglrc );
100
101   stw_dev = NULL;
102}
103