1 files changed, 63 insertions, 0 deletions
diff --git a/render/vulkan/fence.c b/render/vulkan/fence.c
new file mode 100644
index 0000000..6d869c9
--- /dev/null
+++ b/render/vulkan/fence.c
@@ -0,0 +1,63 @@
+#include "fence.h"
+#include "vkassert.h"
+#include <rune/core/logging.h>
+#include <rune/core/alloc.h>
+
+struct vkfence* create_vkfence(struct vkdev *dev, uint8_t signal) {
+        struct vkfence *ret = rune_alloc(sizeof(struct vkfence));
+        
+        VkFenceCreateInfo fcinfo;
+        fcinfo.sType = VK_STRUCTURE_TYPE_FENCE_CREATE_INFO;
+        fcinfo.pNext = NULL;
+        if (signal == 1)
+                fcinfo.flags = VK_FENCE_CREATE_SIGNALED_BIT;
+        else
+                fcinfo.flags = 0;
+        vkassert(vkCreateFence(dev->ldev, &fcinfo, NULL, &ret->handle), "Failed to create fence");
+        return ret;
+}
+
+void destroy_vkfence(struct vkfence *fence, struct vkdev *dev) {
+        if (fence->handle != NULL) {
+                vkDestroyFence(dev->ldev, fence->handle, NULL);
+                fence->handle = NULL;
+        }
+        rune_free(fence);
+}
+
+uint8_t fence_lock(struct vkfence *fence, struct vkdev *dev, uint64_t timeout) {
+        if (fence->signal)
+                return 1;
+        
+        VkResult res = vkWaitForFences(dev->ldev, 1, &fence->handle, VK_TRUE, timeout);
+        switch (res) {
+                case VK_SUCCESS:
+                        fence->signal = 1;
+                        return 1;
+                case VK_TIMEOUT:
+                        log_output(LOG_WARN, "Vulkan fence timed out");
+                        break;
+                case VK_ERROR_DEVICE_LOST:
+                        log_output(LOG_ERROR, "Lost access to host device");
+                        break;
+                case VK_ERROR_OUT_OF_HOST_MEMORY:
+                        log_output(LOG_ERROR, "Out of host memory");
+                        break;
+                case VK_ERROR_OUT_OF_DEVICE_MEMORY:
+                        log_output(LOG_ERROR, "Out of device memory");
+                        break;
+                default:
+                        log_output(LOG_ERROR, "Unknown error occurred on Vulkan fence");
+                        break;
+        }
+
+        return 0;
+}
+
+void fence_unlock(struct vkfence *fence, struct vkdev *dev) {
+        if (fence->signal == 0)
+                return;
+
+        vkassert(vkResetFences(dev->ldev, 1, &fence->handle), "Cannot reset Vulkan fence");
+        fence->signal = 1;
+}