src/gallium/drivers/swr/swr_loader.cpp

   1 /****************************************************************************
   2  * Copyright (C) 2016 Intel Corporation.   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 (including the next
  12  * paragraph) shall be included in all copies or substantial portions of the
  13  * Software.
  14  *
  15  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  16  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  17  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
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  20  * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
  21  * IN THE SOFTWARE.
  22  ***************************************************************************/
  23
  24 #include "util/u_cpu_detect.h"
  25 #include "util/u_dl.h"
  26 #include "swr_public.h"
  27
  28 #include <stdio.h>
  29 #include <dlfcn.h>
  30
  31 typedef pipe_screen *(*screen_create_proc)(struct sw_winsys *winsys);
  32
  33 struct pipe_screen *
  34 swr_create_screen(struct sw_winsys *winsys)
  35 {
  36    fprintf(stderr, "SWR detected ");
  37
  38    util_dl_library *pLibrary = nullptr;
  39
  40    util_cpu_detect();
  41    if (util_cpu_caps.has_avx2) {
  42       fprintf(stderr, "AVX2\n");
  43       pLibrary = util_dl_open("libswrAVX2.so");
  44    } else if (util_cpu_caps.has_avx) {
  45       fprintf(stderr, "AVX\n");
  46       pLibrary = util_dl_open("libswrAVX.so");
  47    } else {
  48       fprintf(stderr, "no AVX/AVX2 support.  Aborting!\n");
  49       exit(-1);
  50    }
  51
  52    if (!pLibrary) {
  53       fprintf(stderr, "SWR library load failure: %s\n", util_dl_error());
  54       exit(-1);
  55    }
  56
  57    util_dl_proc pScreenProc = util_dl_get_proc_address(pLibrary, "swr_create_screen");
  58
  59    if (!pScreenProc) {
  60       fprintf(stderr, "SWR library search failure: %s\n", util_dl_error());
  61       exit(-1);
  62    }
  63
  64    screen_create_proc pScreenCreate = (screen_create_proc)pScreenProc;
  65
  66    return pScreenCreate(winsys);
  67 }