src/waffle/api/waffle_dl.c

   1 // Copyright 2012 Intel Corporation
   2 //
   3 // All rights reserved.
   4 //
   5 // Redistribution and use in source and binary forms, with or without
   6 // modification, are permitted provided that the following conditions are met:
   7 //
   8 // - Redistributions of source code must retain the above copyright notice, this
   9 //   list of conditions and the following disclaimer.
  10 //
  11 // - Redistributions in binary form must reproduce the above copyright notice,
  12 //   this list of conditions and the following disclaimer in the documentation
  13 //   and/or other materials provided with the distribution.
  14 //
  15 // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
  16 // AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  17 // IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
  18 // DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
  19 // FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  20 // DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
  21 // SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
  22 // CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
  23 // OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  24 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  25
  26 #include "api_priv.h"
  27
  28 #include "wcore_error.h"
  29 #include "wcore_platform.h"
  30
  31 static bool
  32 waffle_dl_check_enum(int32_t dl)
  33 {
  34     switch (dl) {
  35         case WAFFLE_DL_OPENGL:
  36         case WAFFLE_DL_OPENGL_ES1:
  37         case WAFFLE_DL_OPENGL_ES2:
  38         case WAFFLE_DL_OPENGL_ES3:
  39             return true;
  40         default:
  41             wcore_errorf(WAFFLE_ERROR_BAD_PARAMETER, "dl has bad value %#x",
  42                          dl);
  43             return false;
  44     }
  45 }
  46
  47 WAFFLE_API bool
  48 waffle_dl_can_open(int32_t dl)
  49 {
  50     if (!api_check_entry(NULL, 0))
  51          return false;
  52
  53      if (!waffle_dl_check_enum(dl))
  54          return false;
  55
  56      return api_platform->vtbl->dl_can_open(api_platform, dl);
  57 }
  58
  59 WAFFLE_API void*
  60 waffle_dl_sym(int32_t dl, const char *name)
  61 {
  62     if (!api_check_entry(NULL, 0))
  63         return NULL;
  64
  65     if (!waffle_dl_check_enum(dl))
  66         return NULL;
  67
  68     return api_platform->vtbl->dl_sym(api_platform, dl, name);
  69 }