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libs/vkd3d: Add environment variable for disabling Vulkan extensions.

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It's useful for testing, e.g. VKD3D_DISABLE_EXTENSIONS=VK_KHR_push_descriptor
This commit is contained in:
Józef Kucia 2017-09-18 15:40:42 +02:00
parent acfd64c20e
commit d2e7fcdf77
1 changed files with 23 additions and 2 deletions
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23
libs/vkd3d/device.c
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@ -54,6 +54,21 @@ static const struct vkd3d_optional_extension_info optional_device_extensions[] =
#define MAX_DEVICE_EXTENSION_COUNT \
(ARRAY_SIZE(required_device_extensions) + ARRAY_SIZE(optional_device_extensions))
static bool is_extension_disabled(const char *extension_name)
{
const char *disabled_extensions;
const char *s;
size_t len;
if (!(disabled_extensions = getenv("VKD3D_DISABLE_EXTENSIONS")))
return false;
if (!(s = strstr(disabled_extensions, extension_name)))
return false;
len = strlen(extension_name);
return s[len] == ';' || s[len] == '\0';
}
static bool has_extension(const VkExtensionProperties *extensions,
unsigned int count, const char *extension_name)
{
@ -61,7 +76,13 @@ static bool has_extension(const VkExtensionProperties *extensions,
for (i = 0; i < count; ++i)
{
if (!strcmp(extensions[i].extensionName, extension_name))
if (strcmp(extensions[i].extensionName, extension_name))
continue;
if (is_extension_disabled(extension_name))
{
WARN("Extension %s is disabled.\n", debugstr_a(extension_name));
continue;
}
return true;
}
return false;