From 53457262d414fdc0d4ea218313facc435ba7a9ec Mon Sep 17 00:00:00 2001
From: kd-11 <karokidii@gmail.com>
Date: Sun, 5 Sep 2021 15:22:03 +0300
Subject: [PATCH] rsx: Implement ZPASS results scaling for precise stats

---
 rpcs3/Emu/RSX/RSXThread.cpp | 13 +++++++++++--
 1 file changed, 11 insertions(+), 2 deletions(-)

diff --git a/rpcs3/Emu/RSX/RSXThread.cpp b/rpcs3/Emu/RSX/RSXThread.cpp
index b5eb716f33..659a25fca1 100644
--- a/rpcs3/Emu/RSX/RSXThread.cpp
+++ b/rpcs3/Emu/RSX/RSXThread.cpp
@@ -3374,12 +3374,21 @@ namespace rsx
 		{
 			ensure(sink);
 
+			auto scale_result = [](u32 value)
+			{
+				const auto scale = rsx::get_resolution_scale_percent();
+				const auto result = static_cast<u64>(value * 10000) / (scale * scale);
+				return std::max<u32>(1u, result);
+			};
+
 			switch (type)
 			{
 			case CELL_GCM_ZPASS_PIXEL_CNT:
-				if (!g_cfg.video.precise_zpass_count)
+				if (value)
 				{
-					value = value ? u16{ umax } : 0;
+					value = (g_cfg.video.precise_zpass_count) ?
+						scale_result(value) :
+						u16{ umax };
 				}
 				break;
 			case CELL_GCM_ZCULL_STATS3: