From: George Kyriazis <george.kyriazis@intel.com>
Date: Tue, 10 Apr 2018 23:43:31 +0000 (-0500)
Subject: swr/rast: Fix byte offset for non-indexed draws
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=9ceeb671a39ddd83a817d353d937283a3b44409e;p=mesa.git

swr/rast: Fix byte offset for non-indexed draws

for the case when USE_SIMD16_SHADERS == FALSE

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

diff --git a/src/gallium/drivers/swr/rasterizer/core/frontend.cpp b/src/gallium/drivers/swr/rasterizer/core/frontend.cpp
index 9630afa036d..6e2bab3e234 100644
--- a/src/gallium/drivers/swr/rasterizer/core/frontend.cpp
+++ b/src/gallium/drivers/swr/rasterizer/core/frontend.cpp
@@ -1729,15 +1729,15 @@ void ProcessDraw(
                     fetchInfo_lo.xpLastIndex = fetchInfo_lo.xpIndices;
                     uint32_t offset;
                     offset = std::min(endVertex-i, (uint32_t) KNOB_SIMD16_WIDTH);
-#if USE_SIMD16_SHADERS
                     offset *= 4; // convert from index to address
+#if USE_SIMD16_SHADERS
                     fetchInfo_lo.xpLastIndex += offset;
 #else
-                    fetchInfo_lo.xpLastIndex += std::min(offset, (uint32_t) KNOB_SIMD_WIDTH) * 4; // * 4 for converting index to address
+                    fetchInfo_lo.xpLastIndex += std::min(offset, (uint32_t) KNOB_SIMD_WIDTH);
                     uint32_t offset2 = std::min(offset, (uint32_t) KNOB_SIMD16_WIDTH)-KNOB_SIMD_WIDTH;
                     assert(offset >= 0);
                     fetchInfo_hi.xpLastIndex = fetchInfo_hi.xpIndices;
-                    fetchInfo_hi.xpLastIndex += offset2 * 4; // * 4 for converting index to address
+                    fetchInfo_hi.xpLastIndex += offset2;
 #endif
                 }
                 // 1. Execute FS/VS for a single SIMD.