[vk_texture_cashe] improve MSAA copy fallback when specialized pass unavailable

src/common/settings.h

@@ -545,8 +545,7 @@ struct Values {
 
     SwitchableSetting<bool> fix_bloom_effects{linkage, false, "fix_bloom_effects",
                                                      Category::RendererHacks};
-    SwitchableSetting<bool> force_smaller_buffers{linkage, false, "force_smaller_buffers",
-                                                     Category::RendererHacks};
+
     SwitchableSetting<bool> use_asynchronous_shaders{linkage, false, "use_asynchronous_shaders",
                                                      Category::RendererHacks};
 

src/qt_common/config/shared_translation.cpp

@@ -340,10 +340,6 @@ std::unique_ptr<TranslationMap> InitializeTranslations(QObject* parent)
            tr("Sync to framerate of video playback"),
            tr("Run the game at normal speed during video playback, even when the framerate is "
               "unlocked."));
-    INSERT(Settings,
-           force_smaller_buffers,
-           tr("Force smaller buffers"),
-           tr("Forces buffers to be smaller, may cause reads/writes out of bounds for some games but can fix Out-of-memory errors."));
     INSERT(Settings,
            barrier_feedback_loops,
            tr("Barrier feedback loops"),

src/video_core/renderer_vulkan/vk_query_cache.cpp

@@ -15,7 +15,6 @@
 #include <vector>
 #include "video_core/renderer_vulkan/vk_texture_cache.h"
 #include "common/bit_util.h"
-#include "common/settings.h"
 #include "common/common_types.h"
 #include "video_core/engines/draw_manager.h"
 #include "video_core/host1x/gpu_device_memory_manager.h"
@@ -544,9 +543,7 @@ private:
             .sType = VK_STRUCTURE_TYPE_BUFFER_CREATE_INFO,
             .pNext = nullptr,
             .flags = 0,
-            .size = ::Settings::values.force_smaller_buffers.GetValue()
-                ? (SamplesQueryBank::QUERY_SIZE * (1ULL << log_2))
-                : (SamplesQueryBank::QUERY_SIZE * num_needed),
+            .size = SamplesQueryBank::QUERY_SIZE * (1ULL << log_2),
             .usage = VK_BUFFER_USAGE_TRANSFER_DST_BIT | VK_BUFFER_USAGE_TRANSFER_SRC_BIT |
                      VK_BUFFER_USAGE_STORAGE_BUFFER_BIT,
             .sharingMode = VK_SHARING_MODE_EXCLUSIVE,

src/video_core/renderer_vulkan/vk_staging_buffer_pool.cpp

@@ -1,4 +1,4 @@
-// SPDX-FileCopyrightText: Copyright 2026 Eden Emulator Project
+// SPDX-FileCopyrightText: Copyright 2025 Eden Emulator Project
 // SPDX-License-Identifier: GPL-3.0-or-later
 
 // SPDX-FileCopyrightText: Copyright 2022 yuzu Emulator Project
@@ -14,7 +14,6 @@
 #include "common/assert.h"
 #include "common/bit_util.h"
 #include "common/common_types.h"
-#include "common/settings.h"
 #include "common/literals.h"
 #include "video_core/renderer_vulkan/vk_scheduler.h"
 #include "video_core/renderer_vulkan/vk_staging_buffer_pool.h"
@@ -187,7 +186,7 @@ StagingBufferRef StagingBufferPool::CreateStagingBuffer(size_t size, MemoryUsage
         .sType = VK_STRUCTURE_TYPE_BUFFER_CREATE_INFO,
         .pNext = nullptr,
         .flags = 0,
-        .size = ::Settings::values.force_smaller_buffers.GetValue() ? size : (1ULL << log2),
+        .size = 1ULL << log2,
         .usage = VK_BUFFER_USAGE_TRANSFER_SRC_BIT | VK_BUFFER_USAGE_TRANSFER_DST_BIT |
                  VK_BUFFER_USAGE_UNIFORM_BUFFER_BIT | VK_BUFFER_USAGE_STORAGE_BUFFER_BIT |
                  VK_BUFFER_USAGE_INDEX_BUFFER_BIT | VK_BUFFER_USAGE_VERTEX_BUFFER_BIT,

src/video_core/renderer_vulkan/vk_texture_cache.cpp

@@ -1583,11 +1583,13 @@ void TextureCacheRuntime::CopyImage(Image& dst, Image& src,
 
 void TextureCacheRuntime::CopyImageMSAA(Image& dst, Image& src,
                                         std::span<const VideoCommon::ImageCopy> copies) {
-    const bool msaa_to_non_msaa = src.info.num_samples > 1 && dst.info.num_samples == 1;
     if (msaa_copy_pass) {
-        return msaa_copy_pass->CopyImage(dst, src, copies, msaa_to_non_msaa);
+        msaa_copy_pass->CopyImage(dst, src, copies,
+                                 src.info.num_samples > 1 && dst.info.num_samples == 1);
+        return;
     }
-    UNIMPLEMENTED_MSG("Copying images with different samples is not supported.");
+
+    CopyImage(dst, src, copies);
 }
 
 u64 TextureCacheRuntime::GetDeviceLocalMemory() const {