PipelineLayout implementation

src/Vulkan/VkPipelineLayout.cpp

@@ -13,21 +13,35 @@
 // limitations under the License.
 
 #include "VkPipelineLayout.hpp"
+#include <cstring>
 
 namespace vk
 {
 
 PipelineLayout::PipelineLayout(const VkPipelineLayoutCreateInfo* pCreateInfo, void* mem)
+	: setLayoutCount(pCreateInfo->setLayoutCount), pushConstantRangeCount(pCreateInfo->pushConstantRangeCount)
 {
+	char* hostMem = reinterpret_cast<char*>(mem);
+
+	size_t setLayoutsSize = pCreateInfo->setLayoutCount * sizeof(DescriptorSetLayout*);
+	setLayouts = reinterpret_cast<DescriptorSetLayout**>(hostMem);
+	memcpy(setLayouts, pCreateInfo->pSetLayouts, setLayoutsSize); // Assumes Cast(VkDescriptorSetLayout) is nothing but a cast
+	hostMem += setLayoutsSize;
+
+	size_t pushConstantRangesSize = pCreateInfo->pushConstantRangeCount * sizeof(VkPushConstantRange);
+	pushConstantRanges = reinterpret_cast<VkPushConstantRange*>(hostMem);
+	memcpy(pushConstantRanges, pCreateInfo->pPushConstantRanges, pushConstantRangesSize);
 }
 
 void PipelineLayout::destroy(const VkAllocationCallbacks* pAllocator)
 {
+	vk::deallocate(setLayouts, pAllocator); // pushConstantRanges are in the same allocation
 }
 
 size_t PipelineLayout::ComputeRequiredAllocationSize(const VkPipelineLayoutCreateInfo* pCreateInfo)
 {
-	return 0;
+	return (pCreateInfo->setLayoutCount * sizeof(DescriptorSetLayout*)) +
+	       (pCreateInfo->pushConstantRangeCount * sizeof(VkPushConstantRange));
 }
 
 } // namespace vk

src/Vulkan/VkPipelineLayout.hpp

@@ -15,7 +15,7 @@
 #ifndef VK_PIPELINE_LAYOUT_HPP_
 #define VK_PIPELINE_LAYOUT_HPP_
 
-#include "VkObject.hpp"
+#include "VkDescriptorSetLayout.hpp"
 
 namespace vk
 {
@@ -30,6 +30,10 @@ public:
 	static size_t ComputeRequiredAllocationSize(const VkPipelineLayoutCreateInfo* pCreateInfo);
 
 private:
+	uint32_t              setLayoutCount = 0;
+	DescriptorSetLayout** setLayouts = nullptr;
+	uint32_t              pushConstantRangeCount = 0;
+	VkPushConstantRange*  pushConstantRanges = nullptr;
 };
 
 static inline PipelineLayout* Cast(VkPipelineLayout object)