commit 8761e0c546d9be6db03710edb7b3ff5e86c3af15
author Greg Daniel <egdaniel@google.com> Thu Jul 20 16:36:01 2017 -0400
committer Skia Commit-Bot <skia-commit-bot@chromium.org> Thu Jul 20 20:59:52 2017 +0000
tree fe42eb76c62306fd54f677b21af59c59c73ad245
parent 807371c15bd742efb98a9df6e1dee73e8bda8af5

Add ability to pre-initialize vulkan semaphores when flushing surfaces

Bug: skia:
Change-Id: I2d3eb68d2ac6045fe3e30350fdd21140e22861d7
Reviewed-on: https://skia-review.googlesource.com/24645
Commit-Queue: Greg Daniel <egdaniel@google.com>
Reviewed-by: Brian Salomon <bsalomon@google.com>

tests/SurfaceSemaphoreTest.cpp

diff --git a/tests/SurfaceSemaphoreTest.cpp b/tests/SurfaceSemaphoreTest.cpp
index 7b22e1c..b13c5d9 100644
--- a/tests/SurfaceSemaphoreTest.cpp
+++ b/tests/SurfaceSemaphoreTest.cpp
@@ -27,8 +27,8 @@
 
 #ifdef VK_USE_PLATFORM_WIN32_KHR
 // windows wants to define this as CreateSemaphoreA or CreateSemaphoreW
- #undef CreateSemaphore
- #endif
+#undef CreateSemaphore
+#endif
 #endif
 
 static const int MAIN_W = 8, MAIN_H = 16;
@@ -124,6 +124,24 @@
     mainCanvas->clear(SK_ColorBLUE);
 
     SkAutoTArray<GrBackendSemaphore> semaphores(2);
+#ifdef SK_VULKAN
+    if (kVulkan_GrBackend == mainInfo.backend()) {
+        // Initialize the secondary semaphore instead of having Ganesh create one internally
+        GrVkGpu* gpu = static_cast<GrVkGpu*>(mainCtx->getGpu());
+        const GrVkInterface* interface = gpu->vkInterface();
+        VkDevice device = gpu->device();
+
+        VkSemaphore vkSem;
+
+        VkSemaphoreCreateInfo createInfo;
+        createInfo.sType = VK_STRUCTURE_TYPE_SEMAPHORE_CREATE_INFO;
+        createInfo.pNext = nullptr;
+        createInfo.flags = 0;
+        GR_VK_CALL_ERRCHECK(interface, CreateSemaphore(device, &createInfo, nullptr, &vkSem));
+
+        semaphores[1].initVulkan(vkSem);
+    }
+#endif
 
     mainSurface->flushAndSignalSemaphores(2, semaphores.get());