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render/vulkan: add helper to load command function pointer 

If NULL is returned by vkGetDeviceProcAddr(), either the driver
is buggy, either the wlroots code is buggy. For a valid device and
command name, drivers are not allowed to return NULL per the spec.

This mirrors what the GLES2 renderer does in load_gl_proc().
This commit is contained in:
Simon Ser 2022-11-06 15:33:40 +01:00
parent 5b23987349
commit f92d1499cd
1 changed files with 11 additions and 9 deletions
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20
render/vulkan/vulkan.c
View File

@ -369,6 +369,15 @@ VkPhysicalDevice vulkan_find_drm_phdev(struct wlr_vk_instance *ini, int drm_fd)
return VK_NULL_HANDLE;
}
static void load_device_proc(struct wlr_vk_device *dev, const char *name,
void *proc_ptr) {
void *proc = (void *)vkGetDeviceProcAddr(dev->dev, name);
if (proc == NULL) {
abort();
}
*(void **)proc_ptr = proc;
}
struct wlr_vk_device *vulkan_device_create(struct wlr_vk_instance *ini,
VkPhysicalDevice phdev) {
VkResult res;
@ -469,17 +478,10 @@ struct wlr_vk_device *vulkan_device_create(struct wlr_vk_instance *ini,
goto error;
}
vkGetDeviceQueue(dev->dev, dev->queue_family, 0, &dev->queue);
// load api
dev->api.getMemoryFdPropertiesKHR = (PFN_vkGetMemoryFdPropertiesKHR)
vkGetDeviceProcAddr(dev->dev, "vkGetMemoryFdPropertiesKHR");
if (!dev->api.getMemoryFdPropertiesKHR) {
wlr_log(WLR_ERROR, "Failed to retrieve required dev function pointers");
goto error;
}
load_device_proc(dev, "vkGetMemoryFdPropertiesKHR",
&dev->api.getMemoryFdPropertiesKHR);
// - check device format support -
size_t max_fmts;