From: Tim Rowley <timothy.o.rowley@intel.com>
Date: Thu, 18 May 2017 20:44:22 +0000 (-0500)
Subject: swr/rast: allow early-z if shader uses depth value
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=e9e999ae322cb625bbd97d2b83b9c8fc2f478803;p=mesa.git

swr/rast: allow early-z if shader uses depth value

Reviewed-by: Bruce Cherniak <bruce.cherniak@intel.com>
---

diff --git a/src/gallium/drivers/swr/rasterizer/core/api.cpp b/src/gallium/drivers/swr/rasterizer/core/api.cpp
index 1d581ac21e3..a463790bd4e 100644
--- a/src/gallium/drivers/swr/rasterizer/core/api.cpp
+++ b/src/gallium/drivers/swr/rasterizer/core/api.cpp
@@ -804,7 +804,7 @@ void SetupPipeline(DRAW_CONTEXT *pDC)
         const uint32_t forcedSampleCount = (rastState.forcedSampleCount) ? 1 : 0;
         const bool bMultisampleEnable = ((rastState.sampleCount > SWR_MULTISAMPLE_1X) || forcedSampleCount) ? 1 : 0;
         const uint32_t centroid = ((psState.barycentricsMask & SWR_BARYCENTRIC_CENTROID_MASK) > 0) ? 1 : 0;
-        const uint32_t canEarlyZ = (psState.forceEarlyZ || (!psState.writesODepth && !psState.usesSourceDepth && !psState.usesUAV)) ? 1 : 0;
+        const uint32_t canEarlyZ = (psState.forceEarlyZ || (!psState.writesODepth && !psState.usesUAV)) ? 1 : 0;
         SWR_BARYCENTRICS_MASK barycentricsMask = (SWR_BARYCENTRICS_MASK)psState.barycentricsMask;
         
         // select backend function