re-land of new SkSL precisions

Bug: skia:
Change-Id: Ic1deb3db2cbda6ca45f93dee99832971a36a2119
Reviewed-on: https://skia-review.googlesource.com/47841
Commit-Queue: Ethan Nicholas <ethannicholas@google.com>
Reviewed-by: Ethan Nicholas <ethannicholas@google.com>

1 files changed, 9 insertions, 9 deletions

diff --git a/src/gpu/effects/GrGaussianConvolutionFragmentProcessor.cpp b/src/gpu/effects/GrGaussianConvolutionFragmentProcessor.cpp
index 23b617849c..dfbe17a289 100644
--- a/src/gpu/effects/GrGaussianConvolutionFragmentProcessor.cpp
+++ b/src/gpu/effects/GrGaussianConvolutionFragmentProcessor.cpp
@@ -41,11 +41,11 @@ void GrGLConvolutionEffect::emitCode(EmitArgs& args) {
             args.fFp.cast<GrGaussianConvolutionFragmentProcessor>();
 
     GrGLSLUniformHandler* uniformHandler = args.fUniformHandler;
-    fImageIncrementUni = uniformHandler->addUniform(kFragment_GrShaderFlag, kVec2f_GrSLType,
-                                                    kDefault_GrSLPrecision, "ImageIncrement");
+    fImageIncrementUni = uniformHandler->addUniform(kFragment_GrShaderFlag, kHalf2_GrSLType,
+                                                    "ImageIncrement");
     if (ce.useBounds()) {
-        fBoundsUni = uniformHandler->addUniform(kFragment_GrShaderFlag, kVec2f_GrSLType,
-                                                kDefault_GrSLPrecision, "Bounds");
+        fBoundsUni = uniformHandler->addUniform(kFragment_GrShaderFlag, kHalf2_GrSLType,
+                                                "Bounds");
     }
 
     int width = ce.width();
@@ -53,19 +53,19 @@ void GrGLConvolutionEffect::emitCode(EmitArgs& args) {
     int arrayCount = (width + 3) / 4;
     SkASSERT(4 * arrayCount >= width);
 
-    fKernelUni = uniformHandler->addUniformArray(kFragment_GrShaderFlag, kVec4f_GrSLType,
-                                                 kDefault_GrSLPrecision, "Kernel", arrayCount);
+    fKernelUni = uniformHandler->addUniformArray(kFragment_GrShaderFlag, kHalf4_GrSLType,
+                                                 "Kernel", arrayCount);
 
     GrGLSLFPFragmentBuilder* fragBuilder = args.fFragBuilder;
     SkString coords2D = fragBuilder->ensureCoords2D(args.fTransformedCoords[0]);
 
-    fragBuilder->codeAppendf("%s = float4(0, 0, 0, 0);", args.fOutputColor);
+    fragBuilder->codeAppendf("%s = half4(0, 0, 0, 0);", args.fOutputColor);
 
     const GrShaderVar& kernel = uniformHandler->getUniformVariable(fKernelUni);
     const char* imgInc = uniformHandler->getUniformCStr(fImageIncrementUni);
 
-    fragBuilder->codeAppendf("float2 coord = %s - %d.0 * %s;", coords2D.c_str(), ce.radius(), imgInc);
-    fragBuilder->codeAppend("float2 coordSampled = float2(0, 0);");
+    fragBuilder->codeAppendf("highfloat2 coord = %s - %d.0 * %s;", coords2D.c_str(), ce.radius(), imgInc);
+    fragBuilder->codeAppend("highfloat2 coordSampled = half2(0, 0);");
 
     // Manually unroll loop because some drivers don't; yields 20-30% speedup.
     const char* kVecSuffix[4] = {".x", ".y", ".z", ".w"};