[vulkan] Adjustments on MSAA and BlitHelpers (#4287)

PR/Commit Owner: CamilleLaVey

This PR contains changes complementary to the MSAA refactor from some weeks ago, adds proper shader convert to depth, stencil for msaa and non msaa convertions; removes redundant helpers and unify paths on the resolve functions, just to make the readability and maintainability better; includes fixes for the blit operations on Nvidia, Intel/Windows (previously banned) and ensures Linux retain the fix without extra burden; fixes the QCOM driver bug on resolution upscaling on any games above x1 (includes turnip on A8xx series) and fixes crashes/ resolution upscaled bugs on certain games that used to have wrong viewporting effect on screen or directly device loss on Vulkan. Adds fixes for regressions caused by previous MSAA refactor on games as Fire Emblem: Engage.

Special Thanks

1.- Big Smolio (@Gidoly)

Co-authored-by: CamilleLaVey <camillelavey99@gmail.com>
Reviewed-on: https://git.eden-emu.dev/eden-emu/eden/pulls/4287
Reviewed-by: CamilleLaVey <camillelavey99@gmail.com>
Reviewed-by: Samuel <lizzie@eden-emu.dev>

1 files changed, 4 insertions, 1 deletions

diff --git a/src/video_core/texture_cache/image_base.h b/src/video_core/texture_cache/image_base.h
index 0587d7b724..79fc8505d6 100644
--- a/src/video_core/texture_cache/image_base.h
+++ b/src/video_core/texture_cache/image_base.h
@@ -1,3 +1,6 @@
+// SPDX-FileCopyrightText: Copyright 2026 Eden Emulator Project
+// SPDX-License-Identifier: GPL-3.0-or-later
+
 // SPDX-FileCopyrightText: Copyright 2020 yuzu Emulator Project
 // SPDX-License-Identifier: GPL-2.0-or-later
 
@@ -64,7 +67,7 @@ struct ImageBase {
 
     void InsertView(const ImageViewInfo& view_info, ImageViewId image_view_id);
 
-    [[nodiscard]] bool IsSafeDownload() const noexcept;
+    [[nodiscard]] bool IsSafeGpuCopy() const noexcept;
 
     [[nodiscard]] bool Overlaps(VAddr overlap_cpu_addr, size_t overlap_size) const noexcept {
         const VAddr overlap_end = overlap_cpu_addr + overlap_size;