src/gallium/auxiliary/vl/vl_winsys_drm.c

   1 /**************************************************************************
   2  *
   3  * Copyright 2015 Advanced Micro Devices, 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 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 VMWARE 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 <assert.h>
  29
  30 #include "pipe/p_screen.h"
  31 #include "pipe-loader/pipe_loader.h"
  32 #include "state_tracker/drm_driver.h"
  33
  34 #include "util/u_memory.h"
  35 #include "vl/vl_winsys.h"
  36
  37 struct vl_screen*
  38 vl_drm_screen_create(int fd)
  39 {
  40    struct vl_screen *vscreen;
  41
  42    vscreen = CALLOC_STRUCT(vl_screen);
  43    if (!vscreen)
  44       return NULL;
  45
  46 #if GALLIUM_STATIC_TARGETS
  47    vscreen->pscreen = dd_create_screen(fd);
  48 #else
  49    if (pipe_loader_drm_probe_fd(&vscreen->dev, dup(fd))) {
  50       vscreen->pscreen =
  51          pipe_loader_create_screen(vscreen->dev, PIPE_SEARCH_DIR);
  52    }
  53 #endif
  54
  55    if (!vscreen->pscreen)
  56       goto error;
  57
  58    vscreen->destroy = vl_drm_screen_destroy;
  59    vscreen->texture_from_drawable = NULL;
  60    vscreen->get_dirty_area = NULL;
  61    vscreen->get_timestamp = NULL;
  62    vscreen->set_next_timestamp = NULL;
  63    vscreen->get_private = NULL;
  64    return vscreen;
  65
  66 error:
  67 #if !GALLIUM_STATIC_TARGETS
  68    if (vscreen->dev)
  69       pipe_loader_release(&vscreen->dev, 1);
  70 #endif // !GALLIUM_STATIC_TARGETS
  71    FREE(vscreen);
  72    return NULL;
  73 }
  74
  75 void
  76 vl_drm_screen_destroy(struct vl_screen *vscreen)
  77 {
  78    assert(vscreen);
  79
  80    vscreen->pscreen->destroy(vscreen->pscreen);
  81
  82 #if !GALLIUM_STATIC_TARGETS
  83    pipe_loader_release(&vscreen->dev, 1);
  84 #endif
  85
  86    FREE(vscreen);
  87 }