Add pipeline barriers flushing buffer data to host

[platform/upstream/VK-GL-CTS.git] / external / vulkancts / modules / vulkan / draw / vktDrawBufferObjectUtil.cpp

diff --git a/external/vulkancts/modules/vulkan/draw/vktDrawBufferObjectUtil.cpp b/external/vulkancts/modules/vulkan/draw/vktDrawBufferObjectUtil.cpp
index 7d8ace1..06e0628 100644 (file)
--- a/external/vulkancts/modules/vulkan/draw/vktDrawBufferObjectUtil.cpp
+++ b/external/vulkancts/modules/vulkan/draw/vktDrawBufferObjectUtil.cpp
@@ -68,5 +68,28 @@ de::SharedPtr<Buffer> Buffer::create (const vk::DeviceInterface& vk,
        return de::SharedPtr<Buffer>(new Buffer(vk, device, vk::createBuffer(vk, device, &createInfo)));
 }
 
+void bufferBarrier (const vk::DeviceInterface& vk,
+                                       vk::VkCommandBuffer                     cmdBuffer,
+                                       vk::VkBuffer                            buffer,
+                                       vk::VkAccessFlags                       srcAccessMask,
+                                       vk::VkAccessFlags                       dstAccessMask,
+                                       vk::VkPipelineStageFlags        srcStageMask,
+                                       vk::VkPipelineStageFlags        dstStageMask)
+{
+       vk::VkBufferMemoryBarrier barrier;
+       barrier.sType                           = vk::VK_STRUCTURE_TYPE_BUFFER_MEMORY_BARRIER;
+       barrier.pNext                           = DE_NULL;
+       barrier.srcAccessMask           = srcAccessMask;
+       barrier.dstAccessMask           = dstAccessMask;
+       barrier.srcQueueFamilyIndex     = VK_QUEUE_FAMILY_IGNORED;
+       barrier.dstQueueFamilyIndex     = VK_QUEUE_FAMILY_IGNORED;
+       barrier.buffer                          = buffer;
+       barrier.offset                          = 0;
+       barrier.size                            = VK_WHOLE_SIZE;
+
+       vk.cmdPipelineBarrier(cmdBuffer, srcStageMask, dstStageMask, (vk::VkDependencyFlags)0, 0, (const vk::VkMemoryBarrier*)DE_NULL,
+                                                 1, &barrier, 0, (const vk::VkImageMemoryBarrier*)DE_NULL);
+}
+
 } // Draw
 } // vkt