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vulkan: Handle case when no vulkan library is available.

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Use one copy of the dynamic loader, if it can't load a library,
drop out of instance creation.
This commit is contained in:
BearOso 2023-02-08 16:34:59 -06:00
parent edbffb9a53
commit f67bdbef3f
1 changed files with 12 additions and 2 deletions
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14
vulkan/vulkan_context.cpp
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@ -8,14 +8,21 @@
namespace Vulkan
{
static std::unique_ptr<vk::DynamicLoader> dl;
Context::Context()
{
vk::DynamicLoader *dl = new vk::DynamicLoader;
if (!dl)
{
dl = std::make_unique<vk::DynamicLoader>();
if (!dl->success())
return;
}
auto vkGetInstanceProcAddr =
dl->getProcAddress<PFN_vkGetInstanceProcAddr>("vkGetInstanceProcAddr");
VULKAN_HPP_DEFAULT_DISPATCHER.init(vkGetInstanceProcAddr);
}
Context::~Context()
@ -39,6 +46,9 @@ Context::~Context()
static vk::UniqueInstance create_instance_preamble(const char *wsi_extension)
{
if (!dl || !dl->success())
return vk::UniqueInstance();
std::vector<const char *> extensions = { wsi_extension, VK_KHR_SURFACE_EXTENSION_NAME };
vk::ApplicationInfo application_info({}, {}, {}, {}, VK_API_VERSION_1_0);
vk::InstanceCreateInfo instance_create_info({}, &application_info, {}, extensions);