stw_device.c

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00001 /**************************************************************************
00002  *
00003  * Copyright 2008 Tungsten Graphics, Inc., Cedar Park, Texas.
00004  * All Rights Reserved.
00005  *
00006  * Permission is hereby granted, free of charge, to any person obtaining a
00007  * copy of this software and associated documentation files (the
00008  * "Software"), to deal in the Software without restriction, including
00009  * without limitation the rights to use, copy, modify, merge, publish,
00010  * distribute, sub license, and/or sell copies of the Software, and to
00011  * permit persons to whom the Software is furnished to do so, subject to
00012  * the following conditions:
00013  *
00014  * The above copyright notice and this permission notice (including the
00015  * next paragraph) shall be included in all copies or substantial portions
00016  * of the Software.
00017  *
00018  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
00019  * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
00020  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
00021  * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR
00022  * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
00023  * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
00024  * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
00025  *
00026  **************************************************************************/
00027 
00028 #include <windows.h>
00029 
00030 #include "pipe/p_debug.h"
00031 
00032 #include "stw_device.h"
00033 #include "stw_winsys.h"
00034 #include "stw_pixelformat.h"
00035 
00036 
00037 struct stw_device *stw_dev = NULL;
00038 
00039 
00040 boolean
00041 st_init(const struct stw_winsys *stw_winsys)
00042 {
00043    static struct stw_device stw_dev_storage;
00044 
00045    assert(!stw_dev);
00046 
00047    stw_dev = &stw_dev_storage;
00048    memset(stw_dev, 0, sizeof(*stw_dev));
00049 
00050    stw_dev->stw_winsys = stw_winsys;
00051 
00052    stw_dev->screen = stw_winsys->create_screen();
00053    if(!stw_dev->screen)
00054       goto error1;
00055 
00056    pixelformat_init();
00057 
00058    return TRUE;
00059 
00060 error1:
00061    stw_dev = NULL;
00062    return FALSE;
00063 }
00064 
00065 
00066 void
00067 st_cleanup(void)
00068 {
00069    DHGLRC dhglrc;
00070 
00071    if(!stw_dev)
00072       return;
00073 
00074    /* Ensure all contexts are destroyed */
00075    for (dhglrc = 1; dhglrc <= DRV_CONTEXT_MAX; dhglrc++)
00076       if (stw_dev->ctx_array[dhglrc - 1].hglrc)
00077          DrvDeleteContext( dhglrc );
00078 
00079    stw_dev = NULL;
00080 }

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