src/gallium/targets/dri-swrast/swrast_drm_api.c

   1 /**************************************************************************
   2  *
   3  * Copyright 2009, VMware, Inc.
   4  * All Rights Reserved.
   5  * Copyright 2010 George Sapountzis <gsapountzis@gmail.com>
   6  *
   7  * Permission is hereby granted, free of charge, to any person obtaining a
   8  * copy of this software and associated documentation files (the
   9  * "Software"), to deal in the Software without restriction, including
  10  * without limitation the rights to use, copy, modify, merge, publish,
  11  * distribute, sub license, and/or sell copies of the Software, and to
  12  * permit persons to whom the Software is furnished to do so, subject to
  13  * the following conditions:
  14  *
  15  * The above copyright notice and this permission notice (including the
  16  * next paragraph) shall be included in all copies or substantial portions
  17  * of the Software.
  18  *
  19  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
  20  * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  21  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
  22  * IN NO EVENT SHALL VMWARE AND/OR ITS SUPPLIERS BE LIABLE FOR
  23  * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
  24  * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
  25  * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  26  *
  27  **************************************************************************/
  28
  29 #include "pipe/p_compiler.h"
  30 #include "util/u_memory.h"
  31 #include "state_tracker/drm_api.h"
  32 #include "state_tracker/sw_winsys.h"
  33 #include "dri_sw_winsys.h"
  34
  35 /* Copied from targets/libgl-xlib */
  36
  37 #ifdef GALLIUM_SOFTPIPE
  38 #include "softpipe/sp_public.h"
  39 #endif
  40
  41 #ifdef GALLIUM_LLVMPIPE
  42 #include "llvmpipe/lp_public.h"
  43 #endif
  44
  45 #ifdef GALLIUM_CELL
  46 #include "cell/ppu/cell_public.h"
  47 #endif
  48
  49 static struct pipe_screen *
  50 swrast_create_screen(struct sw_winsys *winsys)
  51 {
  52    const char *default_driver;
  53    const char *driver;
  54    struct pipe_screen *screen = NULL;
  55
  56 #if defined(GALLIUM_CELL)
  57    default_driver = "cell";
  58 #elif defined(GALLIUM_LLVMPIPE)
  59    default_driver = "llvmpipe";
  60 #elif defined(GALLIUM_SOFTPIPE)
  61    default_driver = "softpipe";
  62 #else
  63    default_driver = "";
  64 #endif
  65
  66    driver = debug_get_option("GALLIUM_DRIVER", default_driver);
  67
  68 #if defined(GALLIUM_CELL)
  69    if (screen == NULL && strcmp(driver, "cell") == 0)
  70       screen = cell_create_screen( winsys );
  71 #elif defined(GALLIUM_LLVMPIPE)
  72    if (screen == NULL && strcmp(driver, "llvmpipe") == 0)
  73       screen = llvmpipe_create_screen( winsys );
  74 #elif defined(GALLIUM_SOFTPIPE)
  75    if (screen == NULL)
  76       screen = softpipe_create_screen( winsys );
  77
  78    (void) driver;
  79 #else
  80    (void) driver;
  81 #endif
  82
  83    return screen;
  84 }
  85
  86 static struct pipe_screen *
  87 swrast_drm_create_screen(struct drm_api *api,
  88                          int drmFD,
  89                          struct drm_create_screen_arg *arg)
  90 {
  91    struct sw_winsys *winsys = NULL;
  92    struct pipe_screen *screen = NULL;
  93    struct drisw_create_screen_arg *drisw;
  94
  95    (void) drmFD;
  96
  97    if (arg != NULL) {
  98       switch(arg->mode) {
  99       case DRM_CREATE_DRISW:
 100          drisw = (struct drisw_create_screen_arg *)arg;
 101          break;
 102       default:
 103          return NULL;
 104       }
 105    }
 106    else {
 107       return NULL;
 108    }
 109
 110    winsys = dri_create_sw_winsys(drisw->lf);
 111    if (winsys == NULL)
 112       return NULL;
 113
 114    screen = swrast_create_screen(winsys);
 115    if (!screen)
 116       goto fail;
 117
 118    return screen;
 119
 120 fail:
 121    if (winsys)
 122       winsys->destroy(winsys);
 123
 124    return NULL;
 125 }
 126
 127 static void
 128 swrast_drm_api_destroy(struct drm_api *api)
 129 {
 130    return;
 131 }
 132
 133 static struct drm_api swrast_drm_api =
 134 {
 135    .name = "swrast",
 136    .driver_name = "swrast",
 137    .create_screen = swrast_drm_create_screen,
 138    .destroy = swrast_drm_api_destroy,
 139 };
 140
 141 struct drm_api *
 142 drm_api_create()
 143 {
 144    return &swrast_drm_api;
 145 }
 146
 147 /* vim: set sw=3 ts=8 sts=3 expandtab: */