Merge "vulkan: Dequeue the shared buffer again after presenting" into oc-dev (42f208a5) · Commits · e / os / platform_frameworks_native

vulkan/libvulkan/swapchain.cpp

+25 −0

Original line number	Diff line number	Diff line
		@@ -1440,6 +1440,7 @@ VkResult QueuePresentKHR(VkQueue queue, const VkPresentInfoKHR* present_info) {
		static_cast<int64_t>(time->desiredPresentTime));
		}
		}

		err = window->queueBuffer(window, img.buffer.get(), fence);
		// queueBuffer always closes fence, even on error
		if (err != 0) {
		@@ -1454,6 +1455,30 @@ VkResult QueuePresentKHR(VkQueue queue, const VkPresentInfoKHR* present_info) {
		img.dequeue_fence = -1;
		}
		img.dequeued = false;

		// If the swapchain is in shared mode, immediately dequeue the
		// buffer so it can be presented again without an intervening
		// call to AcquireNextImageKHR. We expect to get the same buffer
		// back from every call to dequeueBuffer in this mode.
		if (swapchain.shared && swapchain_result == VK_SUCCESS) {
		ANativeWindowBuffer* buffer;
		int fence_fd;
		err = window->dequeueBuffer(window, &buffer, &fence_fd);
		if (err != 0) {
		ALOGE("dequeueBuffer failed: %s (%d)", strerror(-err), err);
		swapchain_result = WorstPresentResult(swapchain_result,
		VK_ERROR_SURFACE_LOST_KHR);
		}
		else if (img.buffer != buffer) {
		ALOGE("got wrong image back for shared swapchain");
		swapchain_result = WorstPresentResult(swapchain_result,
		VK_ERROR_SURFACE_LOST_KHR);
		}
		else {
		img.dequeue_fence = fence_fd;
		img.dequeued = true;
		}
		}
		}
		if (swapchain_result != VK_SUCCESS) {
		ReleaseSwapchainImage(device, window, fence, img);