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render/vulkan: simplify extension checks

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find_extensions() is clunky to use when checking only a single
extension, and it's surprising that it returns NULL on success.

Simplify by replacing it with a check_extension() function which
just checks whether a single extension is in the list.
This commit is contained in:
Simon Ser 2022-11-05 16:59:56 +01:00
parent c09d3450d4
commit 7f5180af77
1 changed files with 20 additions and 33 deletions
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53
render/vulkan/vulkan.c
View file

@ -12,25 +12,14 @@
#include <wlr/config.h>
#include "render/vulkan.h"
// Returns the name of the first extension that could not be found or NULL.
static const char *find_extensions(const VkExtensionProperties *avail,
unsigned availc, const char **req, unsigned reqc) {
// check if all required extensions are supported
for (size_t i = 0; i < reqc; ++i) {
bool found = false;
for (size_t j = 0; j < availc; ++j) {
if (!strcmp(avail[j].extensionName, req[i])) {
found = true;
break;
}
}
if (!found) {
return req[i];
static bool check_extension(const VkExtensionProperties *avail,
uint32_t avail_len, const char *name) {
for (size_t i = 0; i < avail_len; i++) {
if (strcmp(avail[i].extensionName, name) == 0) {
return true;
}
}
return NULL;
return false;
}
static VkBool32 debug_callback(VkDebugUtilsMessageSeverityFlagBitsEXT severity,
@ -134,12 +123,10 @@ struct wlr_vk_instance *vulkan_instance_create(bool debug) {
const char *extensions[1] = {0};
bool debug_utils_found = false;
if (debug) {
const char *name = VK_EXT_DEBUG_UTILS_EXTENSION_NAME;
if (find_extensions(avail_ext_props, avail_extc, &name, 1) == NULL) {
debug_utils_found = true;
extensions[extensions_len++] = name;
}
if (debug && check_extension(avail_ext_props, avail_extc,
VK_EXT_DEBUG_UTILS_EXTENSION_NAME)) {
debug_utils_found = true;
extensions[extensions_len++] = VK_EXT_DEBUG_UTILS_EXTENSION_NAME;
}
assert(extensions_len <= sizeof(extensions) / sizeof(extensions[0]));
@ -328,10 +315,10 @@ VkPhysicalDevice vulkan_find_drm_phdev(struct wlr_vk_instance *ini, int drm_fd)
continue;
}
const char *name = VK_EXT_PHYSICAL_DEVICE_DRM_EXTENSION_NAME;
bool has_drm_props = find_extensions(avail_ext_props, avail_extc, &name, 1) == NULL;
name = VK_KHR_DRIVER_PROPERTIES_EXTENSION_NAME;
bool has_driver_props = find_extensions(avail_ext_props, avail_extc, &name, 1) == NULL;
bool has_drm_props = check_extension(avail_ext_props, avail_extc,
VK_EXT_PHYSICAL_DEVICE_DRM_EXTENSION_NAME);
bool has_driver_props = check_extension(avail_ext_props, avail_extc,
VK_KHR_DRIVER_PROPERTIES_EXTENSION_NAME);
VkPhysicalDeviceProperties2 props = {0};
props.sType = VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_PROPERTIES_2;
@ -425,12 +412,12 @@ struct wlr_vk_device *vulkan_device_create(struct wlr_vk_instance *ini,
};
size_t extensions_len = sizeof(extensions) / sizeof(extensions[0]);
const char *not_found =
find_extensions(avail_ext_props, avail_extc, extensions, extensions_len);
if (not_found) {
wlr_log(WLR_ERROR, "vulkan: required device extension %s not found",
not_found);
goto error;
for (size_t i = 0; i < extensions_len; i++) {
if (!check_extension(avail_ext_props, avail_extc, extensions[i])) {
wlr_log(WLR_ERROR, "vulkan: required device extension %s not found",
extensions[i]);
goto error;
}
}
// queue families