Work around a GCC miscompilation issue.
Bug 18470793
Change-Id: Idac85c738810db112e7af56f5e1635c2ac6d325c
Reviewed-on: https://swiftshader-review.googlesource.com/1841
Reviewed-by: Alexis Hétu <sugoi@google.com>
Reviewed-by: Nicolas Capens <capn@google.com>
Tested-by: Nicolas Capens <capn@google.com>
diff --git a/src/Renderer/QuadRasterizer.cpp b/src/Renderer/QuadRasterizer.cpp
index d15c895..f189bd3 100644
--- a/src/Renderer/QuadRasterizer.cpp
+++ b/src/Renderer/QuadRasterizer.cpp
@@ -250,11 +250,9 @@
r.Dw = *Pointer<Float4>(r.primitive + OFFSET(Primitive,w.C), 16) + yyyy * *Pointer<Float4>(r.primitive + OFFSET(Primitive,w.B), 16);
}
- for(int interpolant = 0; interpolant < 11; interpolant++)
+ for(int interpolant = 0; interpolant < 10; interpolant++)
{
- int componentCount = interpolant < 10 ? 4 : 1; // Fog only has one component
-
- for(int component = 0; component < componentCount; component++)
+ for(int component = 0; component < 4; component++)
{
if(state.interpolant[interpolant].component & (1 << component))
{
@@ -268,6 +266,16 @@
}
}
+ if(state.fog.component)
+ {
+ r.Df = *Pointer<Float4>(r.primitive + OFFSET(Primitive,f.C), 16);
+
+ if(!state.fog.flat)
+ {
+ r.Df += yyyy * *Pointer<Float4>(r.primitive + OFFSET(Primitive,f.B), 16);
+ }
+ }
+
Short4 xLeft[4];
Short4 xRight[4];