src/mesa/state_tracker/wgl/stw_device.c

   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
  39 struct 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  */
  46 static void
  47 st_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
  59 boolean
  60 st_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
  82 error1:
  83    stw_dev = NULL;
  84    return FALSE;
  85 }
  86
  87
  88 void
  89 st_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 }