From 3ecea80ecba084b91bd187ae717b68765eff75c2 Mon Sep 17 00:00:00 2001
From: byuu <2107894+byuu@users.noreply.github.com>
Date: Sun, 10 Nov 2019 10:01:13 +0900
Subject: [PATCH] v112.10

Fix accuracy PPU mosaic rendering when size!=0 && enable==0
---
 bsnes/sfc/ppu/mode7.cpp | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/bsnes/sfc/ppu/mode7.cpp b/bsnes/sfc/ppu/mode7.cpp
index a23592ba..09dd63f1 100644
--- a/bsnes/sfc/ppu/mode7.cpp
+++ b/bsnes/sfc/ppu/mode7.cpp
@@ -21,9 +21,11 @@ auto PPU::Background::runMode7() -> void {
   int voffset = (int13)latch.voffset;
 
   uint x = mosaic.hoffset;
-  uint y = ppu.bg1.mosaic.voffset;  //BG2 vertical mosaic uses BG1 mosaic size
+  uint y = mosaic.enable ? ppu.bg1.mosaic.voffset : ppu.vcounter();  //BG2 vertical mosaic uses BG1 mosaic size
 
-  if(--mosaic.hcounter == 0) {
+  if(!mosaic.enable) {
+    mosaic.hoffset += 1;
+  } else if(--mosaic.hcounter == 0) {
     mosaic.hcounter = mosaic.size + 1;
     mosaic.hoffset += mosaic.size + 1;
   }