src/gallium/winsys/svga/drm/vmw_screen.c

   1 /**********************************************************
   2  * Copyright 2009 VMware, Inc.  All rights reserved.
   3  *
   4  * Permission is hereby granted, free of charge, to any person
   5  * obtaining a copy of this software and associated documentation
   6  * files (the "Software"), to deal in the Software without
   7  * restriction, including without limitation the rights to use, copy,
   8  * modify, merge, publish, distribute, sublicense, and/or sell copies
   9  * of the Software, and to permit persons to whom the Software is
  10  * furnished to do so, subject to the following conditions:
  11  *
  12  * The above copyright notice and this permission notice shall be
  13  * included in all copies or substantial portions of the Software.
  14  *
  15  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  16  * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  17  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  18  * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
  19  * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
  20  * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
  21  * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
  22  * SOFTWARE.
  23  *
  24  **********************************************************/
  25
  26
  27 #include "vmw_screen.h"
  28
  29 #include "vmw_context.h"
  30
  31 #include "util/u_memory.h"
  32 #include "pipe/p_compiler.h"
  33
  34
  35 /* Called from vmw_drm_create_screen(), creates and initializes the
  36  * vmw_winsys_screen structure, which is the main entity in this
  37  * module.
  38  */
  39 struct vmw_winsys_screen *
  40 vmw_winsys_create( int fd, boolean use_old_scanout_flag )
  41 {
  42    struct vmw_winsys_screen *vws = CALLOC_STRUCT(vmw_winsys_screen);
  43    if (!vws)
  44       goto out_no_vws;
  45
  46    vws->ioctl.drm_fd = fd;
  47    vws->use_old_scanout_flag = use_old_scanout_flag;
  48
  49    if (!vmw_ioctl_init(vws))
  50       goto out_no_ioctl;
  51
  52    if(!vmw_pools_init(vws))
  53       goto out_no_pools;
  54
  55    if (!vmw_winsys_screen_init_svga(vws))
  56       goto out_no_svga;
  57
  58    return vws;
  59 out_no_svga:
  60    vmw_pools_cleanup(vws);
  61 out_no_pools:
  62    vmw_ioctl_cleanup(vws);
  63 out_no_ioctl:
  64    FREE(vws);
  65 out_no_vws:
  66    return NULL;
  67 }
  68
  69 void
  70 vmw_winsys_destroy(struct vmw_winsys_screen *vws)
  71 {
  72    vmw_pools_cleanup(vws);
  73    vmw_ioctl_cleanup(vws);
  74    FREE(vws);
  75 }
  76
  77 void
  78 vmw_winsys_screen_set_throttling(struct pipe_screen *screen,
  79                                  uint32_t throttle_us)
  80 {
  81    struct vmw_winsys_screen  *vws =
  82       vmw_winsys_screen(svga_winsys_screen(screen));
  83
  84    vws->default_throttle_us = throttle_us;
  85 }