src/gallium/targets/libgl-gdi/gdi_softpipe_winsys.c

   1 /**************************************************************************
   2  *
   3  * Copyright 2009 VMware, Inc.
   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 SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  15  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  16  * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
  17  * THE COPYRIGHT HOLDERS, AUTHORS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM,
  18  * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
  19  * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
  20  * USE OR OTHER DEALINGS IN THE SOFTWARE.
  21  *
  22  * The above copyright notice and this permission notice (including the
  23  * next paragraph) shall be included in all copies or substantial portions
  24  * of the Software.
  25  *
  26  *
  27  **************************************************************************/
  28
  29 /**
  30  * @file
  31  * LLVMpipe support.
  32  *
  33  * @author Jose Fonseca <jfonseca@vmware.com>
  34  */
  35
  36
  37 #include <windows.h>
  38
  39 #include "stw_winsys.h"
  40 #include "gdi/gdi_sw_winsys.h"
  41 #include "softpipe/sp_texture.h"
  42 #include "softpipe/sp_screen.h"
  43 #include "softpipe/sp_public.h"
  44
  45
  46 static struct pipe_screen *
  47 gdi_softpipe_screen_create(void)
  48 {
  49    static struct sw_winsys *winsys;
  50    struct pipe_screen *screen;
  51
  52    winsys = gdi_create_sw_winsys();
  53    if(!winsys)
  54       goto no_winsys;
  55
  56    screen = softpipe_create_screen(winsys);
  57    if(!screen)
  58       goto no_screen;
  59
  60    return screen;
  61
  62 no_screen:
  63    winsys->destroy(winsys);
  64 no_winsys:
  65    return NULL;
  66 }
  67
  68
  69
  70
  71 static void
  72 gdi_softpipe_present(struct pipe_screen *screen,
  73                      struct pipe_surface *surface,
  74                      HDC hDC)
  75 {
  76    /* This will fail if any interposing layer (trace, debug, etc) has
  77     * been introduced between the state-trackers and softpipe.
  78     *
  79     * Ideally this would get replaced with a call to
  80     * pipe_screen::flush_frontbuffer().
  81     *
  82     * Failing that, it may be necessary for intervening layers to wrap
  83     * other structs such as this stw_winsys as well...
  84     */
  85    gdi_sw_display(softpipe_screen(screen)->winsys,
  86                   softpipe_texture(surface->texture)->dt,
  87                   hDC);
  88 }
  89
  90
  91 static const struct stw_winsys stw_winsys = {
  92    &gdi_softpipe_screen_create,
  93    &gdi_softpipe_present,
  94    NULL, /* get_adapter_luid */
  95    NULL, /* shared_surface_open */
  96    NULL, /* shared_surface_close */
  97    NULL  /* compose */
  98 };
  99
 100
 101 BOOL WINAPI
 102 DllMain(HINSTANCE hinstDLL, DWORD fdwReason, LPVOID lpReserved)
 103 {
 104    switch (fdwReason) {
 105    case DLL_PROCESS_ATTACH:
 106       stw_init(&stw_winsys);
 107       stw_init_thread();
 108       break;
 109
 110    case DLL_THREAD_ATTACH:
 111       stw_init_thread();
 112       break;
 113
 114    case DLL_THREAD_DETACH:
 115       stw_cleanup_thread();
 116       break;
 117
 118    case DLL_PROCESS_DETACH:
 119       stw_cleanup_thread();
 120       stw_cleanup();
 121       break;
 122    }
 123    return TRUE;
 124 }