From 4a95f72fbacdbc91228191f083b074eda69663b6 Mon Sep 17 00:00:00 2001
From: Triang3l <triang3l@yandex.ru>
Date: Sat, 19 Jun 2021 13:57:04 +0300
Subject: [PATCH] [GPU] RT size function adjustments for Vulkan convenience

---
 src/xenia/gpu/render_target_cache.cc | 4 +++-
 src/xenia/gpu/render_target_cache.h  | 6 +++++-
 2 files changed, 8 insertions(+), 2 deletions(-)

diff --git a/src/xenia/gpu/render_target_cache.cc b/src/xenia/gpu/render_target_cache.cc
index ec83cc4fd..76a3a2ef8 100644
--- a/src/xenia/gpu/render_target_cache.cc
+++ b/src/xenia/gpu/render_target_cache.cc
@@ -845,7 +845,9 @@ RenderTargetCache::GetConfigDepthFloat24Conversion() {
 
 uint32_t RenderTargetCache::GetRenderTargetHeight(
     uint32_t pitch_tiles_at_32bpp, xenos::MsaaSamples msaa_samples) const {
-  assert_not_zero(pitch_tiles_at_32bpp);
+  if (!pitch_tiles_at_32bpp) {
+    return 0;
+  }
   // Down to the end of EDRAM.
   uint32_t tile_rows = (xenos::kEdramTileCount + (pitch_tiles_at_32bpp - 1)) /
                        pitch_tiles_at_32bpp;
diff --git a/src/xenia/gpu/render_target_cache.h b/src/xenia/gpu/render_target_cache.h
index 383c12f94..a3d580356 100644
--- a/src/xenia/gpu/render_target_cache.h
+++ b/src/xenia/gpu/render_target_cache.h
@@ -265,11 +265,15 @@ class RenderTargetCache {
     uint32_t GetPitchTiles() const {
       return pitch_tiles_at_32bpp << uint32_t(Is64bpp());
     }
-    uint32_t GetWidth() const {
+    static constexpr uint32_t GetWidth(uint32_t pitch_tiles_at_32bpp,
+                                       xenos::MsaaSamples msaa_samples) {
       return pitch_tiles_at_32bpp *
              (xenos::kEdramTileWidthSamples >>
               uint32_t(msaa_samples >= xenos::MsaaSamples::k4X));
     }
+    uint32_t GetWidth() const {
+      return GetWidth(pitch_tiles_at_32bpp, msaa_samples);
+    }
 
     std::string GetDebugName() const {
       return fmt::format(