[Vulkan] Texture cache: Maximum dimensions, null images

src/xenia/gpu/vulkan/vulkan_texture_cache.h

@@ -0,0 +1,94 @@
+/**
+ ******************************************************************************
+ * Xenia : Xbox 360 Emulator Research Project                                 *
+ ******************************************************************************
+ * Copyright 2022 Ben Vanik. All rights reserved.                             *
+ * Released under the BSD license - see LICENSE in the root for more details. *
+ ******************************************************************************
+ */
+
+#ifndef XENIA_GPU_VULKAN_VULKAN_TEXTURE_CACHE_H_
+#define XENIA_GPU_VULKAN_VULKAN_TEXTURE_CACHE_H_
+
+#include <array>
+#include <memory>
+#include <utility>
+
+#include "xenia/gpu/texture_cache.h"
+#include "xenia/gpu/vulkan/vulkan_shared_memory.h"
+#include "xenia/ui/vulkan/vulkan_provider.h"
+
+namespace xe {
+namespace gpu {
+namespace vulkan {
+
+class VulkanCommandProcessor;
+
+class VulkanTextureCache final : public TextureCache {
+ public:
+  static std::unique_ptr<VulkanTextureCache> Create(
+      const RegisterFile& register_file, VulkanSharedMemory& shared_memory,
+      uint32_t draw_resolution_scale_x, uint32_t draw_resolution_scale_y,
+      VulkanCommandProcessor& command_processor,
+      VkPipelineStageFlags guest_shader_pipeline_stages) {
+    std::unique_ptr<VulkanTextureCache> texture_cache(new VulkanTextureCache(
+        register_file, shared_memory, draw_resolution_scale_x,
+        draw_resolution_scale_y, command_processor,
+        guest_shader_pipeline_stages));
+    if (!texture_cache->Initialize()) {
+      return nullptr;
+    }
+    return std::move(texture_cache);
+  }
+
+  ~VulkanTextureCache();
+
+  void BeginSubmission(uint64_t new_submission_index) override;
+
+ protected:
+  uint32_t GetHostFormatSwizzle(TextureKey key) const override;
+
+  uint32_t GetMaxHostTextureWidthHeight(
+      xenos::DataDimension dimension) const override;
+  uint32_t GetMaxHostTextureDepthOrArraySize(
+      xenos::DataDimension dimension) const override;
+
+  std::unique_ptr<Texture> CreateTexture(TextureKey key) override;
+
+  bool LoadTextureDataFromResidentMemoryImpl(Texture& texture, bool load_base,
+                                             bool load_mips) override;
+
+ private:
+  class VulkanTexture final : public Texture {
+   public:
+    explicit VulkanTexture(VulkanTextureCache& texture_cache,
+                           const TextureKey& key);
+  };
+
+  explicit VulkanTextureCache(
+      const RegisterFile& register_file, VulkanSharedMemory& shared_memory,
+      uint32_t draw_resolution_scale_x, uint32_t draw_resolution_scale_y,
+      VulkanCommandProcessor& command_processor,
+      VkPipelineStageFlags guest_shader_pipeline_stages);
+
+  bool Initialize();
+
+  VulkanCommandProcessor& command_processor_;
+  VkPipelineStageFlags guest_shader_pipeline_stages_;
+
+  // If both images can be placed in the same allocation, it's one allocation,
+  // otherwise it's two separate.
+  std::array<VkDeviceMemory, 2> null_images_memory_{};
+  VkImage null_image_2d_array_cube_ = VK_NULL_HANDLE;
+  VkImage null_image_3d_ = VK_NULL_HANDLE;
+  VkImageView null_image_view_2d_array_ = VK_NULL_HANDLE;
+  VkImageView null_image_view_cube_ = VK_NULL_HANDLE;
+  VkImageView null_image_view_3d_ = VK_NULL_HANDLE;
+  bool null_images_cleared_ = false;
+};
+
+}  // namespace vulkan
+}  // namespace gpu
+}  // namespace xe
+
+#endif  // XENIA_GPU_VULKAN_VULKAN_TEXTURE_CACHE_H_