Texture Cache: Implement async texture downloads.

2 files changed, 11 insertions, 3 deletions

diff --git a/src/video_core/renderer_vulkan/vk_texture_cache.cpp b/src/video_core/renderer_vulkan/vk_texture_cache.cpp
index a65bbeb1c..d39372ec4 100644
--- a/src/video_core/renderer_vulkan/vk_texture_cache.cpp
+++ b/src/video_core/renderer_vulkan/vk_texture_cache.cpp
@@ -812,8 +812,12 @@ StagingBufferRef TextureCacheRuntime::UploadStagingBuffer(size_t size) {
     return staging_buffer_pool.Request(size, MemoryUsage::Upload);
 }
 
-StagingBufferRef TextureCacheRuntime::DownloadStagingBuffer(size_t size) {
-    return staging_buffer_pool.Request(size, MemoryUsage::Download);
+StagingBufferRef TextureCacheRuntime::DownloadStagingBuffer(size_t size, bool deferred) {
+    return staging_buffer_pool.Request(size, MemoryUsage::Download, deferred);
+}
+
+void TextureCacheRuntime::FreeDeferredStagingBuffer(StagingBufferRef& ref) {
+    staging_buffer_pool.FreeDeferred(ref);
 }
 
 bool TextureCacheRuntime::ShouldReinterpret(Image& dst, Image& src) {
diff --git a/src/video_core/renderer_vulkan/vk_texture_cache.h b/src/video_core/renderer_vulkan/vk_texture_cache.h
index 7ec0df134..1f27a3589 100644
--- a/src/video_core/renderer_vulkan/vk_texture_cache.h
+++ b/src/video_core/renderer_vulkan/vk_texture_cache.h
@@ -51,7 +51,9 @@ public:
 
     StagingBufferRef UploadStagingBuffer(size_t size);
 
-    StagingBufferRef DownloadStagingBuffer(size_t size);
+    StagingBufferRef DownloadStagingBuffer(size_t size, bool deferred = false);
+
+    void FreeDeferredStagingBuffer(StagingBufferRef& ref);
 
     void TickFrame();
 
@@ -347,6 +349,7 @@ struct TextureCacheParams {
     static constexpr bool FRAMEBUFFER_BLITS = false;
     static constexpr bool HAS_EMULATED_COPIES = false;
     static constexpr bool HAS_DEVICE_MEMORY_INFO = true;
+    static constexpr bool IMPLEMENTS_ASYNC_DOWNLOADS = true;
 
     using Runtime = Vulkan::TextureCacheRuntime;
     using Image = Vulkan::Image;
@@ -354,6 +357,7 @@ struct TextureCacheParams {
     using ImageView = Vulkan::ImageView;
     using Sampler = Vulkan::Sampler;
     using Framebuffer = Vulkan::Framebuffer;
+    using AsyncBuffer = Vulkan::StagingBufferRef;
 };
 
 using TextureCache = VideoCommon::TextureCache<TextureCacheParams>;