refactor cache/split responsibilities

src/graphics/host_gpu/renderer/dummyTextureCache.h

@@ -0,0 +1,38 @@
+#ifndef EMULATOR_SRC_GRAPHICS_HOST_GPU_RENDERER_DUMMYTEXTURECACHE_H_
+#define EMULATOR_SRC_GRAPHICS_HOST_GPU_RENDERER_DUMMYTEXTURECACHE_H_
+
+#include "common/abi.h"
+#include "common/threads.h"
+#include "graphics/host_gpu/graphicContext.h"
+
+#include <array>
+#include <cstdint>
+
+namespace Libs::Graphics {
+
+class DummyTextureCache final {
+public:
+	enum class Usage: uint8_t { Sampled, Storage };
+
+	DummyTextureCache() = default;
+	~DummyTextureCache();
+	KYTY_CLASS_NO_COPY(DummyTextureCache);
+
+	[[nodiscard]] VulkanImage* Get(GraphicContext* ctx, Usage usage, bool uint_format,
+	                               bool image_3d);
+
+private:
+	struct Slot {
+		GpuTextureVulkanImage* image = nullptr;
+		VulkanMemory           memory {};
+	};
+
+	Common::Mutex       m_mutex;
+	std::array<Slot, 4> m_sampled {};
+	std::array<Slot, 4> m_storage {};
+	GraphicContext*     m_ctx = nullptr;
+};
+
+} // namespace Libs::Graphics
+
+#endif // EMULATOR_SRC_GRAPHICS_HOST_GPU_RENDERER_DUMMYTEXTURECACHE_H_