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, 2 insertions, 2 deletions

diff --git a/src/gpu/effects/GrXfermodeFragmentProcessor.cpp b/src/gpu/effects/GrXfermodeFragmentProcessor.cpp
index 11dee67f29..3b9b44cd57 100644
--- a/src/gpu/effects/GrXfermodeFragmentProcessor.cpp
+++ b/src/gpu/effects/GrXfermodeFragmentProcessor.cpp
@@ -217,7 +217,7 @@ void GLComposeTwoFragmentProcessor::emitCode(EmitArgs& args) {
     const char* inputColor = nullptr;
     if (args.fInputColor) {
         inputColor = "inputColor";
-        fragBuilder->codeAppendf("half4 inputColor = half4(%s.rgb, 1.0);", args.fInputColor);
+        fragBuilder->codeAppendf("float4 inputColor = float4(%s.rgb, 1.0);", args.fInputColor);
     }
 
     // declare outputColor and emit the code for each of the two children
@@ -452,7 +452,7 @@ public:
         const char* inputColor = args.fInputColor;
         // We don't try to optimize for this case at all
         if (!inputColor) {
-            fragBuilder->codeAppendf("const half4 ones = half4(1);");
+            fragBuilder->codeAppendf("const float4 ones = float4(1);");
             inputColor = "ones";
         }