shader: Interact texture buffers with buffer cache

3 files changed, 19 insertions, 4 deletions

diff --git a/src/video_core/texture_cache/image_view_base.cpp b/src/video_core/texture_cache/image_view_base.cpp
index e8d632f9e..450becbeb 100644
--- a/src/video_core/texture_cache/image_view_base.cpp
+++ b/src/video_core/texture_cache/image_view_base.cpp
@@ -36,6 +36,15 @@ ImageViewBase::ImageViewBase(const ImageViewInfo& info, const ImageInfo& image_i
     }
 }
 
+ImageViewBase::ImageViewBase(const ImageInfo& info, const ImageViewInfo& view_info)
+    : format{info.format}, type{ImageViewType::Buffer}, size{
+                                                            .width = info.size.width,
+                                                            .height = 1,
+                                                            .depth = 1,
+                                                        } {
+    ASSERT_MSG(view_info.type == ImageViewType::Buffer, "Expected texture buffer");
+}
+
 ImageViewBase::ImageViewBase(const NullImageParams&) {}
 
 } // namespace VideoCommon
diff --git a/src/video_core/texture_cache/image_view_base.h b/src/video_core/texture_cache/image_view_base.h
index 73954167e..903f715c5 100644
--- a/src/video_core/texture_cache/image_view_base.h
+++ b/src/video_core/texture_cache/image_view_base.h
@@ -27,6 +27,7 @@ DECLARE_ENUM_FLAG_OPERATORS(ImageViewFlagBits)
 struct ImageViewBase {
     explicit ImageViewBase(const ImageViewInfo& info, const ImageInfo& image_info,
                            ImageId image_id);
+    explicit ImageViewBase(const ImageInfo& info, const ImageViewInfo& view_info);
     explicit ImageViewBase(const NullImageParams&);
 
     [[nodiscard]] bool IsBuffer() const noexcept {
diff --git a/src/video_core/texture_cache/texture_cache.h b/src/video_core/texture_cache/texture_cache.h
index 85ce06d56..5e8d99482 100644
--- a/src/video_core/texture_cache/texture_cache.h
+++ b/src/video_core/texture_cache/texture_cache.h
@@ -968,9 +968,6 @@ void TextureCache<P>::UploadImageContents(Image& image, StagingBuffer& staging)
         auto copies = UnswizzleImage(gpu_memory, gpu_addr, image.info, unswizzled_data);
         ConvertImage(unswizzled_data, image.info, mapped_span, copies);
         image.UploadMemory(staging, copies);
-    } else if (image.info.type == ImageType::Buffer) {
-        const std::array copies{UploadBufferCopy(gpu_memory, gpu_addr, image, mapped_span)};
-        image.UploadMemory(staging, copies);
     } else {
         const auto copies = UnswizzleImage(gpu_memory, gpu_addr, image.info, mapped_span);
         image.UploadMemory(staging, copies);
@@ -993,7 +990,12 @@ ImageViewId TextureCache<P>::FindImageView(const TICEntry& config) {
 template <class P>
 ImageViewId TextureCache<P>::CreateImageView(const TICEntry& config) {
     const ImageInfo info(config);
-    const GPUVAddr image_gpu_addr = config.Address() - config.BaseLayer() * info.layer_stride;
+    if (info.type == ImageType::Buffer) {
+        const ImageViewInfo view_info(config, 0);
+        return slot_image_views.insert(runtime, info, view_info, config.Address());
+    }
+    const u32 layer_offset = config.BaseLayer() * info.layer_stride;
+    const GPUVAddr image_gpu_addr = config.Address() - layer_offset;
     const ImageId image_id = FindOrInsertImage(info, image_gpu_addr);
     if (!image_id) {
         return NULL_IMAGE_VIEW_ID;
@@ -1801,6 +1803,9 @@ void TextureCache<P>::PrepareImageView(ImageViewId image_view_id, bool is_modifi
         return;
     }
     const ImageViewBase& image_view = slot_image_views[image_view_id];
+    if (image_view.IsBuffer()) {
+        return;
+    }
     PrepareImage(image_view.image_id, is_modification, invalidate);
 }