commit 1e6a9898b73bc744e2055410456e22f28e504bdc
author Alexis Hetu <sugoi@google.com> Fri Mar 15 12:12:00 2019 -0400
committer Alexis Hétu <sugoi@google.com> Fri Mar 15 18:09:37 2019 +0000
tree 6861a4acf81a8853f6df8b48c9e379f87aec5ab3
parent f3b57974620dc86f8040123b55c9c9788c79b0e0

Dedicated allocation verification

Added the ability to set the VkMemoryDedicatedRequirements
structure in vkGetBufferMemoryRequirements2. Note that this
cl adds no support for dedicated allocations.

Passes all tests in the Tests section below.

Change-Id: Ib5bc2775e66e810d1ca2d52672eb2cca71e85f5e
Tests: dEQP-VK.api.buffer.dedicated_alloc.*
Tests: dEQP-VK.api.buffer_view.create.*
Reviewed-on: https://swiftshader-review.googlesource.com/c/SwiftShader/+/27290
Presubmit-Ready: Alexis Hétu <sugoi@google.com>
Reviewed-by: Nicolas Capens <nicolascapens@google.com>
Reviewed-by: Chris Forbes <chrisforbes@google.com>
Tested-by: Alexis Hétu <sugoi@google.com>
Kokoro-Presubmit: kokoro <noreply+kokoro@google.com>

src/Vulkan/libVulkan.cpp

diff --git a/src/Vulkan/libVulkan.cpp b/src/Vulkan/libVulkan.cpp
index b9c57a1..020cf5b 100644
--- a/src/Vulkan/libVulkan.cpp
+++ b/src/Vulkan/libVulkan.cpp
@@ -1787,11 +1787,31 @@
 	TRACE("(VkDevice device = 0x%X, const VkBufferMemoryRequirementsInfo2* pInfo = 0x%X, VkMemoryRequirements2* pMemoryRequirements = 0x%X)",
 	      device, pInfo, pMemoryRequirements);
 
-	if(pInfo->pNext || pMemoryRequirements->pNext)
+	if(pInfo->pNext)
 	{
 		UNIMPLEMENTED();
 	}
 
+	VkBaseOutStructure* extensionRequirements = reinterpret_cast<VkBaseOutStructure*>(pMemoryRequirements->pNext);
+	while(extensionRequirements)
+	{
+		switch(extensionRequirements->sType)
+		{
+		case VK_STRUCTURE_TYPE_MEMORY_DEDICATED_REQUIREMENTS:
+			{
+				auto& requirements = *reinterpret_cast<VkMemoryDedicatedRequirements*>(extensionRequirements);
+				requirements.prefersDedicatedAllocation = VK_FALSE;
+				requirements.requiresDedicatedAllocation = VK_FALSE;
+			}
+			break;
+		default:
+			UNIMPLEMENTED();
+			break;
+		}
+
+		extensionRequirements = extensionRequirements->pNext;
+	}
+
 	vkGetBufferMemoryRequirements(device, pInfo->buffer, &(pMemoryRequirements->memoryRequirements));
 }