src/gallium/targets/osmesa/target.c

   1 /*
   2  * Copyright (c) 2013  Brian Paul   All Rights Reserved.
   3  *
   4  * Permission is hereby granted, free of charge, to any person obtaining a
   5  * copy of this software and associated documentation files (the "Software"),
   6  * to deal in the Software without restriction, including without limitation
   7  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
   8  * and/or sell copies of the Software, and to permit persons to whom the
   9  * Software is furnished to do so, subject to the following conditions:
  10  *
  11  * The above copyright notice and this permission notice shall be included
  12  * in all copies or substantial portions of the Software.
  13  *
  14  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
  15  * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  16  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
  17  * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
  18  * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
  19  * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
  20  * OTHER DEALINGS IN THE SOFTWARE.
  21  */
  22
  23
  24 #include "target-helpers/inline_sw_helper.h"
  25 #include "target-helpers/inline_debug_helper.h"
  26
  27 #include "sw/null/null_sw_winsys.h"
  28
  29
  30 struct pipe_screen *
  31 osmesa_create_screen(void);
  32
  33
  34 struct pipe_screen *
  35 osmesa_create_screen(void)
  36 {
  37    struct sw_winsys *winsys;
  38    struct pipe_screen *screen;
  39
  40    /* We use a null software winsys since we always just render to ordinary
  41     * driver resources.
  42     */
  43    winsys = null_sw_create();
  44    if (!winsys)
  45       return NULL;
  46
  47    /* Create llvmpipe or softpipe screen */
  48    screen = sw_screen_create(winsys);
  49    if (!screen) {
  50       winsys->destroy(winsys);
  51       return NULL;
  52    }
  53
  54    /* Inject optional trace, debug, etc. wrappers */
  55    return debug_screen_wrap(screen);
  56 }