From: Jason Ekstrand <jason@jlekstrand.net>
Date: Wed, 4 Dec 2019 18:47:31 +0000 (-0600)
Subject: vulkan/wsi: Add a hooks for signaling semaphores and fences
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=778b51f491cfe56da463195e1392293379b9fe26;p=mesa.git

vulkan/wsi: Add a hooks for signaling semaphores and fences

Reviewed-by: Bas Nieuwenhuizen <bas@basnieuwenhuizen.nl>
Reviewed-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
---

diff --git a/src/vulkan/wsi/wsi_common.c b/src/vulkan/wsi/wsi_common.c
index 3abffe3dee7..65ab543cc5d 100644
--- a/src/vulkan/wsi/wsi_common.c
+++ b/src/vulkan/wsi/wsi_common.c
@@ -1004,7 +1004,28 @@ wsi_common_acquire_next_image2(const struct wsi_device *wsi,
 {
    WSI_FROM_HANDLE(wsi_swapchain, swapchain, pAcquireInfo->swapchain);
 
-   return swapchain->acquire_next_image(swapchain, pAcquireInfo, pImageIndex);
+   VkResult result = swapchain->acquire_next_image(swapchain, pAcquireInfo,
+                                                   pImageIndex);
+   if (result != VK_SUCCESS)
+      return result;
+
+   if (pAcquireInfo->semaphore != VK_NULL_HANDLE &&
+       wsi->signal_semaphore_for_memory != NULL) {
+      struct wsi_image *image =
+         swapchain->get_wsi_image(swapchain, *pImageIndex);
+      wsi->signal_semaphore_for_memory(device, pAcquireInfo->semaphore,
+                                       image->memory);
+   }
+
+   if (pAcquireInfo->fence != VK_NULL_HANDLE &&
+       wsi->signal_fence_for_memory != NULL) {
+      struct wsi_image *image =
+         swapchain->get_wsi_image(swapchain, *pImageIndex);
+      wsi->signal_fence_for_memory(device, pAcquireInfo->fence,
+                                   image->memory);
+   }
+
+   return VK_SUCCESS;
 }
 
 VkResult
diff --git a/src/vulkan/wsi/wsi_common.h b/src/vulkan/wsi/wsi_common.h
index d15dea7b0eb..704c1abd809 100644
--- a/src/vulkan/wsi/wsi_common.h
+++ b/src/vulkan/wsi/wsi_common.h
@@ -130,6 +130,22 @@ struct wsi_device {
 
    uint64_t (*image_get_modifier)(VkImage image);
 
+   /* Signals the semaphore such that any wait on the semaphore will wait on
+    * any reads or writes on the give memory object.  This is used to
+    * implement the semaphore signal operation in vkAcquireNextImage.
+    */
+   void (*signal_semaphore_for_memory)(VkDevice device,
+                                       VkSemaphore semaphore,
+                                       VkDeviceMemory memory);
+
+   /* Signals the fence such that any wait on the fence will wait on any reads
+    * or writes on the give memory object.  This is used to implement the
+    * semaphore signal operation in vkAcquireNextImage.
+    */
+   void (*signal_fence_for_memory)(VkDevice device,
+                                   VkFence fence,
+                                   VkDeviceMemory memory);
+
 #define WSI_CB(cb) PFN_vk##cb cb
    WSI_CB(AllocateMemory);
    WSI_CB(AllocateCommandBuffers);