Placeholder object for VkPipelineCache

While implementing Pipeline Cache is optional, we still need a
placeholder object in order to return have a valid handle for
this object.

b/118386749

Change-Id: I18abb4196fbc99d3f639c1ba14ceb570ac11b365
Reviewed-on: https://swiftshader-review.googlesource.com/c/22729
Reviewed-by: Nicolas Capens <nicolascapens@google.com>
Tested-by: Alexis Hétu <sugoi@google.com>
diff --git a/src/Vulkan/VkDestroy.h b/src/Vulkan/VkDestroy.h
index b70a17f..b627a3e 100644
--- a/src/Vulkan/VkDestroy.h
+++ b/src/Vulkan/VkDestroy.h
@@ -24,6 +24,7 @@
 #include "VkImage.hpp"
 #include "VkInstance.hpp"
 #include "VkPipeline.hpp"
+#include "VkPipelineCache.hpp"
 #include "VkPipelineLayout.hpp"
 #include "VkPhysicalDevice.hpp"
 #include "VkQueue.hpp"
diff --git a/src/Vulkan/VkPipelineCache.hpp b/src/Vulkan/VkPipelineCache.hpp
new file mode 100644
index 0000000..6218394
--- /dev/null
+++ b/src/Vulkan/VkPipelineCache.hpp
@@ -0,0 +1,47 @@
+// Copyright 2018 The SwiftShader Authors. All Rights Reserved.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//    http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+#ifndef VK_PIPELINE_CACHE_HPP_
+#define VK_PIPELINE_CACHE_HPP_
+
+#include "VkObject.hpp"
+
+namespace vk
+{
+
+class PipelineCache : public Object<PipelineCache, VkPipelineCache>
+{
+public:
+	PipelineCache(const VkPipelineCacheCreateInfo* pCreateInfo, void* mem)
+	{
+	}
+
+	~PipelineCache() = delete;
+
+	static size_t ComputeRequiredAllocationSize(const VkPipelineCacheCreateInfo* pCreateInfo)
+	{
+		return 0;
+	}
+
+private:
+};
+
+static inline PipelineCache* Cast(VkPipelineCache object)
+{
+	return reinterpret_cast<PipelineCache*>(object);
+}
+
+} // namespace vk
+
+#endif // VK_PIPELINE_CACHE_HPP_
diff --git a/src/Vulkan/libVulkan.cpp b/src/Vulkan/libVulkan.cpp
index fe59570..21466db 100644
--- a/src/Vulkan/libVulkan.cpp
+++ b/src/Vulkan/libVulkan.cpp
@@ -29,6 +29,7 @@
 #include "VkInstance.hpp"
 #include "VkPhysicalDevice.hpp"
 #include "VkPipeline.hpp"
+#include "VkPipelineCache.hpp"
 #include "VkPipelineLayout.hpp"
 #include "VkQueue.hpp"
 #include "VkSampler.hpp"
@@ -777,15 +778,23 @@
 
 VKAPI_ATTR VkResult VKAPI_CALL vkCreatePipelineCache(VkDevice device, const VkPipelineCacheCreateInfo* pCreateInfo, const VkAllocationCallbacks* pAllocator, VkPipelineCache* pPipelineCache)
 {
-	TRACE("()");
-	UNIMPLEMENTED();
-	return VK_SUCCESS;
+	TRACE("(VkDevice device, const VkPipelineCacheCreateInfo* pCreateInfo, const VkAllocationCallbacks* pAllocator, VkPipelineCache* pPipelineCache)",
+	      device, pCreateInfo, pAllocator, pPipelineCache);
+
+	if(pCreateInfo->pNext || pCreateInfo->flags)
+	{
+		UNIMPLEMENTED();
+	}
+
+	return vk::PipelineCache::Create(pAllocator, pCreateInfo, pPipelineCache);
 }
 
 VKAPI_ATTR void VKAPI_CALL vkDestroyPipelineCache(VkDevice device, VkPipelineCache pipelineCache, const VkAllocationCallbacks* pAllocator)
 {
-	TRACE("()");
-	UNIMPLEMENTED();
+	TRACE("(VkDevice device, VkPipelineCache pipelineCache, const VkAllocationCallbacks* pAllocator)",
+	      device, pipelineCache, pAllocator);
+
+	vk::destroy(pipelineCache, pAllocator);
 }
 
 VKAPI_ATTR VkResult VKAPI_CALL vkGetPipelineCacheData(VkDevice device, VkPipelineCache pipelineCache, size_t* pDataSize, void* pData)
diff --git a/src/Vulkan/vulkan.vcxproj b/src/Vulkan/vulkan.vcxproj
index 124d5ed..6d06892 100644
--- a/src/Vulkan/vulkan.vcxproj
+++ b/src/Vulkan/vulkan.vcxproj
@@ -208,6 +208,7 @@
     <ClInclude Include="VkObject.hpp" />

     <ClInclude Include="VkPhysicalDevice.hpp" />

     <ClInclude Include="VkPipeline.hpp" />

+    <ClInclude Include="VkPipelineCache.hpp" />

     <ClInclude Include="VkPipelineLayout.hpp" />

     <ClInclude Include="VkQueue.hpp" />

     <ClInclude Include="VkRenderPass.hpp" />

diff --git a/src/Vulkan/vulkan.vcxproj.filters b/src/Vulkan/vulkan.vcxproj.filters
index 0f86ff6..ec3551e 100644
--- a/src/Vulkan/vulkan.vcxproj.filters
+++ b/src/Vulkan/vulkan.vcxproj.filters
@@ -305,6 +305,9 @@
     <ClInclude Include="VkPipeline.hpp">

       <Filter>Header Files\Vulkan</Filter>

     </ClInclude>

+    <ClInclude Include="VkPipelineCache.hpp">

+      <Filter>Header Files\Vulkan</Filter>

+    </ClInclude>

     <ClInclude Include="VkPipelineLayout.hpp">

       <Filter>Header Files\Vulkan</Filter>

     </ClInclude>