Add vulkan sampler cache

src/core/renderer_vk/vk_sampler_cache.cpp

@@ -0,0 +1,31 @@
+#include "renderer_vk/vk_sampler_cache.hpp"
+
+#include <vulkan/vulkan_hash.hpp>
+
+#include "helpers.hpp"
+
+namespace Vulkan {
+
+	SamplerCache::SamplerCache(vk::Device device) : device(device) {}
+
+	const vk::Sampler& SamplerCache::getSampler(const vk::SamplerCreateInfo& samplerInfo) {
+		const std::size_t samplerHash = std::hash<vk::SamplerCreateInfo>()(samplerInfo);
+
+		// Cache hit
+		if (samplerMap.contains(samplerHash)) {
+			return samplerMap.at(samplerHash).get();
+		}
+
+		if (auto createResult = device.createSamplerUnique(samplerInfo); createResult.result == vk::Result::eSuccess) {
+			return (samplerMap[samplerHash] = std::move(createResult.value)).get();
+		} else {
+			Helpers::panic("Error creating sampler: %s\n", vk::to_string(createResult.result).c_str());
+		}
+	}
+
+	std::optional<SamplerCache> SamplerCache::create(vk::Device device) {
+		SamplerCache newSamplerCache(device);
+
+		return {std::move(newSamplerCache)};
+	}
+}  // namespace Vulkan