Revert "Revert "Revert "Switched highp float to highfloat and mediump float to half."""

This reverts commit 05d5a13fea6246648de7e41358ed338d53c85ea2.

Reason for revert: looks like it broke filterfastbounds

Original change's description:
> Revert "Revert "Switched highp float to highfloat and mediump float to half.""
> 
> This reverts commit 1d816b92bb7cf2258007f3f74ffd143b89f25d01.
> 
> Bug: skia:
> Change-Id: I388b5e5e9bf619db48297a80c9a80c039f26c9f1
> Reviewed-on: https://skia-review.googlesource.com/46464
> Reviewed-by: Brian Salomon <bsalomon@google.com>
> Commit-Queue: Ethan Nicholas <ethannicholas@google.com>

TBR=bsalomon@google.com,ethannicholas@google.com

# Not skipping CQ checks because original CL landed > 1 day ago.

Bug: skia:
Change-Id: Iddf6aef2ab084aa73da7ceebdfc303a1d2b80cde
Reviewed-on: https://skia-review.googlesource.com/47441
Reviewed-by: Ethan Nicholas <ethannicholas@google.com>
Commit-Queue: Ethan Nicholas <ethannicholas@google.com>

1 files changed, 5 insertions, 5 deletions

diff --git a/src/gpu/effects/GrShadowGeoProc.cpp b/src/gpu/effects/GrShadowGeoProc.cpp
index ca4c5dba75..297dd50ada 100644
--- a/src/gpu/effects/GrShadowGeoProc.cpp
+++ b/src/gpu/effects/GrShadowGeoProc.cpp
@@ -26,7 +26,7 @@ public:
 
         // emit attributes
         varyingHandler->emitAttributes(rsgp);
-        fragBuilder->codeAppend("half4 shadowParams;");
+        fragBuilder->codeAppend("float4 shadowParams;");
         varyingHandler->addPassThroughAttribute(rsgp.inShadowParams(), "shadowParams");
 
         // setup pass through color
@@ -43,12 +43,12 @@ public:
                              rsgp.inPosition()->fName,
                              args.fFPCoordTransformHandler);
 
-        fragBuilder->codeAppend("half d = length(shadowParams.xy);");
-        fragBuilder->codeAppend("half distance = shadowParams.z * (1.0 - d);");
+        fragBuilder->codeAppend("float d = length(shadowParams.xy);");
+        fragBuilder->codeAppend("float distance = shadowParams.z * (1.0 - d);");
 
-        fragBuilder->codeAppend("half factor = 1.0 - clamp(distance, 0.0, shadowParams.w);");
+        fragBuilder->codeAppend("float factor = 1.0 - clamp(distance, 0.0, shadowParams.w);");
         fragBuilder->codeAppend("factor = exp(-factor * factor * 4.0) - 0.018;");
-        fragBuilder->codeAppendf("%s = half4(factor);",
+        fragBuilder->codeAppendf("%s = float4(factor);",
                                  args.fOutputCoverage);
     }