texture_cache: collect images in the emptiest device memory blocks first

Deleting by age alone left every block partly used: the collector deletes
thousands of images a minute and new ones land in the holes, so blocks
seldom empty (title 1: ~0.8 GB of holes in ~190 32 MiB blocks after ten
minutes, counted by the driver as used). Among the oldest candidates, 8
per image a pass may delete, those in the emptiest blocks go first, so
blocks drain and VMA returns them; placement already prefers the fullest
blocks.

(cherry picked from commit 2f8f0716fafd874cfbb3cc9086141aea61aff2df)

1 files changed, 13 insertions, 0 deletions

diff --git a/src/video_core/vulkan_common/vulkan_wrapper.cpp b/src/video_core/vulkan_common/vulkan_wrapper.cpp
index ac67b95707..d0bca88125 100644
--- a/src/video_core/vulkan_common/vulkan_wrapper.cpp
+++ b/src/video_core/vulkan_common/vulkan_wrapper.cpp
@@ -526,6 +526,19 @@ void Image::Release() const noexcept {
     }
 }
 
+Image::MemoryBlock Image::GetMemoryBlock() const noexcept {
+    if (allocation == nullptr) {
+        return {};
+    }
+    VmaAllocationInfo2 info{};
+    vmaGetAllocationInfo2(allocator, allocation, &info);
+    if (info.dedicatedMemory) {
+        return {0, info.blockSize, info.allocationInfo.size};
+    }
+    return {reinterpret_cast<u64>(info.allocationInfo.deviceMemory), info.blockSize,
+            info.allocationInfo.size};
+}
+
 void Buffer::Flush() const {
     if (!is_coherent) {
         vmaFlushAllocation(allocator, allocation, 0, VK_WHOLE_SIZE);