src/vulkan/util/vk_util.c

   1 /*
   2  * Copyright © 2016 Red Hat.
   3  * Copyright © 2016 Bas Nieuwenhuizen
   4  * Copyright © 2017 Intel Corporation
   5  *
   6  * Permission is hereby granted, free of charge, to any person obtaining a
   7  * copy of this software and associated documentation files (the "Software"),
   8  * to deal in the Software without restriction, including without limitation
   9  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
  10  * and/or sell copies of the Software, and to permit persons to whom the
  11  * Software is furnished to do so, subject to the following conditions:
  12  *
  13  * The above copyright notice and this permission notice (including the next
  14  * paragraph) shall be included in all copies or substantial portions of the
  15  * Software.
  16  *
  17  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  18  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  19  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
  20  * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  21  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
  22  * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
  23  * IN THE SOFTWARE.
  24  */
  25
  26 #include <stdlib.h>
  27 #include <string.h>
  28 #include "vk_util.h"
  29
  30 uint32_t vk_get_driver_version(void)
  31 {
  32    const char *minor_string = strchr(PACKAGE_VERSION, '.');
  33    const char *patch_string = minor_string ? strchr(minor_string + 1, '.') : NULL;
  34    int major = atoi(PACKAGE_VERSION);
  35    int minor = minor_string ? atoi(minor_string + 1) : 0;
  36    int patch = patch_string ? atoi(patch_string + 1) : 0;
  37    if (strstr(PACKAGE_VERSION, "devel")) {
  38       if (patch == 0) {
  39          patch = 99;
  40          if (minor == 0) {
  41             minor = 99;
  42             --major;
  43          } else
  44             --minor;
  45       } else
  46          --patch;
  47    }
  48    return VK_MAKE_VERSION(major, minor, patch);
  49 }
  50
  51 uint32_t vk_get_version_override(void)
  52 {
  53    const char *str = getenv("MESA_VK_VERSION_OVERRIDE");
  54    if (str == NULL)
  55       return 0;
  56
  57    const char *minor_str = strchr(str, '.');
  58    const char *patch_str = minor_str ? strchr(minor_str + 1, '.') : NULL;
  59
  60    int major = atoi(str);
  61    int minor = minor_str ? atoi(minor_str + 1) : 0;
  62    int patch = patch_str ? atoi(patch_str + 1) : 0;
  63
  64    /* Do some basic version sanity checking */
  65    if (major < 1 || minor < 0 || patch < 0 || minor > 1023 || patch > 4095)
  66       return 0;
  67
  68    return VK_MAKE_VERSION(major, minor, patch);
  69 }