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      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
     18  * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
     19  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
     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 "pipe/p_screen.h"
     29 
     30 #include <stdio.h>
     31 
     32 typedef pipe_screen *(*screen_create_proc)(struct sw_winsys *winsys);
     33 
     34 struct pipe_screen *
     35 swr_create_screen(struct sw_winsys *winsys)
     36 {
     37    char filename[256];
     38    fprintf(stderr, "SWR detected ");
     39 
     40    util_dl_library *pLibrary = nullptr;
     41 
     42    util_cpu_detect();
     43    if (util_cpu_caps.has_avx2) {
     44       fprintf(stderr, "AVX2\n");
     45       sprintf(filename, "%s%s%s", UTIL_DL_PREFIX, "swrAVX2", UTIL_DL_EXT);
     46    } else if (util_cpu_caps.has_avx) {
     47       fprintf(stderr, "AVX\n");
     48       sprintf(filename, "%s%s%s", UTIL_DL_PREFIX, "swrAVX", UTIL_DL_EXT);
     49    } else {
     50       fprintf(stderr, "no AVX/AVX2 support.  Aborting!\n");
     51       exit(-1);
     52    }
     53    pLibrary = util_dl_open(filename);
     54 
     55    if (!pLibrary) {
     56       fprintf(stderr, "SWR library load failure: %s\n", util_dl_error());
     57       exit(-1);
     58    }
     59 
     60    util_dl_proc pScreenProc = util_dl_get_proc_address(pLibrary, "swr_create_screen_internal");
     61 
     62    if (!pScreenProc) {
     63       fprintf(stderr, "SWR library search failure: %s\n", util_dl_error());
     64       exit(-1);
     65    }
     66 
     67    screen_create_proc pScreenCreate = (screen_create_proc)pScreenProc;
     68 
     69    return pScreenCreate(winsys);
     70 }
     71 
     72 
     73 #ifdef _WIN32
     74 // swap function called from libl_gdi.c
     75 
     76 void
     77 swr_gdi_swap(struct pipe_screen *screen,
     78              struct pipe_resource *res,
     79              void *hDC)
     80 {
     81    screen->flush_frontbuffer(screen,
     82                              res,
     83                              0, 0,
     84                              hDC,
     85                              NULL);
     86 }
     87 
     88 #endif /* _WIN32 */
     89