src/gallium/winsys/sw/drm/sw_drm_api.c

   1 /**********************************************************
   2  * Copyright 2010 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 "util/u_memory.h"
  28 #include "softpipe/sp_public.h"
  29 #include "state_tracker/drm_api.h"
  30 #include "../../sw/wrapper/wrapper_sw_winsys.h"
  31 #include "sw_drm_api.h"
  32
  33
  34 /*
  35  * Defines
  36  */
  37
  38
  39 struct sw_drm_api
  40 {
  41    struct drm_api base;
  42    struct drm_api *api;
  43    struct sw_winsys *sw;
  44 };
  45
  46 static INLINE struct sw_drm_api *
  47 sw_drm_api(struct drm_api *api)
  48 {
  49    return (struct sw_drm_api *)api;
  50 }
  51
  52
  53 /*
  54  * Exported functions
  55  */
  56
  57
  58 static struct pipe_screen *
  59 sw_drm_create_screen(struct drm_api *_api, int drmFD,
  60                      struct drm_create_screen_arg *arg)
  61 {
  62    struct sw_drm_api *swapi = sw_drm_api(_api);
  63    struct drm_api *api = swapi->api;
  64    struct sw_winsys *sww;
  65    struct pipe_screen *screen;
  66
  67    screen = api->create_screen(api, drmFD, arg);
  68    if (!screen)
  69       return NULL;
  70
  71    sww = wrapper_sw_winsys_warp_pipe_screen(screen);
  72    if (!sww)
  73       return NULL;
  74
  75    return softpipe_create_screen(sww);
  76 }
  77
  78 static void
  79 sw_drm_destroy(struct drm_api *api)
  80 {
  81    struct sw_drm_api *swapi = sw_drm_api(api);
  82    if (swapi->api->destroy)
  83       swapi->api->destroy(swapi->api);
  84
  85    FREE(swapi);
  86 }
  87
  88 struct drm_api *
  89 sw_drm_api_create(struct drm_api *api)
  90 {
  91    struct sw_drm_api *swapi = CALLOC_STRUCT(sw_drm_api);
  92
  93    if (!swapi)
  94       return api;
  95
  96    swapi->base.name = api->name;
  97    swapi->base.driver_name = api->driver_name;
  98    swapi->base.create_screen = sw_drm_create_screen;
  99    swapi->base.destroy = sw_drm_destroy;
 100
 101    swapi->api = api;
 102
 103    return &swapi->base;
 104 }