switched SkSL's temporary 'highfloat' type back to 'float'

Bug: skia:
Change-Id: If0debae7318b6b5b4a7cb85d458996a09931127e
Reviewed-on: https://skia-review.googlesource.com/48760
Commit-Queue: Ethan Nicholas <ethannicholas@google.com>
Reviewed-by: Brian Salomon <bsalomon@google.com>
diff --git a/src/gpu/effects/GrAtlasedShaderHelpers.h b/src/gpu/effects/GrAtlasedShaderHelpers.h
index 57e30a3..fae42eb 100644
--- a/src/gpu/effects/GrAtlasedShaderHelpers.h
+++ b/src/gpu/effects/GrAtlasedShaderHelpers.h
@@ -50,12 +50,12 @@
     for (int i = 0; i < numTextureSamplers-1; ++i) {
         args.fFragBuilder->codeAppendf("if (%s == %d) { %s = ", texIdx.fsIn(), i, colorName);
         args.fFragBuilder->appendTextureLookup(args.fTexSamplers[i], coordName,
-                                               kHighFloat2_GrSLType);
+                                               kFloat2_GrSLType);
         args.fFragBuilder->codeAppend("; } else ");
     }
     args.fFragBuilder->codeAppendf("{ %s = ", colorName);
     args.fFragBuilder->appendTextureLookup(args.fTexSamplers[numTextureSamplers-1], coordName,
-                                           kHighFloat2_GrSLType);
+                                           kFloat2_GrSLType);
     args.fFragBuilder->codeAppend("; }");
 }
 
diff --git a/src/gpu/effects/GrBezierEffect.cpp b/src/gpu/effects/GrBezierEffect.cpp
index 5848888..9f5c8ca 100644
--- a/src/gpu/effects/GrBezierEffect.cpp
+++ b/src/gpu/effects/GrBezierEffect.cpp
@@ -77,7 +77,7 @@
     // emit attributes
     varyingHandler->emitAttributes(gp);
 
-    GrGLSLVertToFrag v(kHighFloat4_GrSLType);
+    GrGLSLVertToFrag v(kFloat4_GrSLType);
     varyingHandler->addVarying("ConicCoeffs", &v, kHigh_GrSLPrecision);
     vertBuilder->codeAppendf("%s = %s;", v.vsOut(), gp.inConicCoeffs()->fName);
 
@@ -106,14 +106,14 @@
     // that suffices. Additionally we should assert that the upstream code only lets us get here if
     // either float or half provides the required number of bits.
 
-    GrShaderVar edgeAlpha("edgeAlpha", kHighFloat_GrSLType, 0);
-    GrShaderVar dklmdx("dklmdx", kHighFloat3_GrSLType, 0);
-    GrShaderVar dklmdy("dklmdy", kHighFloat3_GrSLType, 0);
-    GrShaderVar dfdx("dfdx", kHighFloat_GrSLType, 0);
-    GrShaderVar dfdy("dfdy", kHighFloat_GrSLType, 0);
-    GrShaderVar gF("gF", kHighFloat2_GrSLType, 0);
-    GrShaderVar gFM("gFM", kHighFloat_GrSLType, 0);
-    GrShaderVar func("func", kHighFloat_GrSLType, 0);
+    GrShaderVar edgeAlpha("edgeAlpha", kFloat_GrSLType, 0);
+    GrShaderVar dklmdx("dklmdx", kFloat3_GrSLType, 0);
+    GrShaderVar dklmdy("dklmdy", kFloat3_GrSLType, 0);
+    GrShaderVar dfdx("dfdx", kFloat_GrSLType, 0);
+    GrShaderVar dfdy("dfdy", kFloat_GrSLType, 0);
+    GrShaderVar gF("gF", kFloat2_GrSLType, 0);
+    GrShaderVar gFM("gFM", kFloat_GrSLType, 0);
+    GrShaderVar func("func", kFloat_GrSLType, 0);
 
     fragBuilder->declAppend(edgeAlpha);
     fragBuilder->declAppend(dklmdx);
@@ -138,7 +138,7 @@
                                      v.fsIn(), dklmdy.c_str(),
                                      v.fsIn(), dklmdy.c_str(),
                                      v.fsIn(), dklmdy.c_str());
-            fragBuilder->codeAppendf("%s = highfloat2(%s, %s);", gF.c_str(), dfdx.c_str(),
+            fragBuilder->codeAppendf("%s = float2(%s, %s);", gF.c_str(), dfdx.c_str(),
                                      dfdy.c_str());
             fragBuilder->codeAppendf("%s = sqrt(dot(%s, %s));",
                                      gFM.c_str(), gF.c_str(), gF.c_str());
@@ -168,7 +168,7 @@
                                      v.fsIn(), dklmdy.c_str(),
                                      v.fsIn(), dklmdy.c_str(),
                                      v.fsIn(), dklmdy.c_str());
-            fragBuilder->codeAppendf("%s = highfloat2(%s, %s);", gF.c_str(), dfdx.c_str(),
+            fragBuilder->codeAppendf("%s = float2(%s, %s);", gF.c_str(), dfdx.c_str(),
                                      dfdy.c_str());
             fragBuilder->codeAppendf("%s = sqrt(dot(%s, %s));",
                                      gFM.c_str(), gF.c_str(), gF.c_str());
@@ -185,7 +185,7 @@
         case kFillBW_GrProcessorEdgeType: {
             fragBuilder->codeAppendf("%s = %s.x * %s.x - %s.y * %s.z;",
                                      edgeAlpha.c_str(), v.fsIn(), v.fsIn(), v.fsIn(), v.fsIn());
-            fragBuilder->codeAppendf("%s = highfloat(%s < 0.0);",
+            fragBuilder->codeAppendf("%s = float(%s < 0.0);",
                                      edgeAlpha.c_str(), edgeAlpha.c_str());
             break;
         }
@@ -197,7 +197,7 @@
     if (gp.coverageScale() != 0xff) {
         const char* coverageScale;
         fCoverageScaleUniform = uniformHandler->addUniform(kFragment_GrShaderFlag,
-                                                           kHighFloat_GrSLType,
+                                                           kFloat_GrSLType,
                                                            "Coverage",
                                                            &coverageScale);
         fragBuilder->codeAppendf("%s = half4(%s * %s);",
@@ -554,25 +554,25 @@
 
     // Setup KLM
     const char* devkLMMatrixName;
-    fDevKLMUniform = uniformHandler->addUniform(kVertex_GrShaderFlag, kHighFloat3x3_GrSLType, "KLM",
+    fDevKLMUniform = uniformHandler->addUniform(kVertex_GrShaderFlag, kFloat3x3_GrSLType, "KLM",
                                                 &devkLMMatrixName);
-    GrGLSLVertToFrag v(kHighFloat3_GrSLType);
+    GrGLSLVertToFrag v(kFloat3_GrSLType);
     varyingHandler->addVarying("CubicCoeffs", &v, kHigh_GrSLPrecision);
-    vertBuilder->codeAppendf("%s = %s * highfloat3(%s, 1);",
+    vertBuilder->codeAppendf("%s = %s * float3(%s, 1);",
                              v.vsOut(), devkLMMatrixName, gpArgs->fPositionVar.c_str());
 
 
-    GrGLSLVertToFrag gradCoeffs(kHighFloat4_GrSLType);
+    GrGLSLVertToFrag gradCoeffs(kFloat4_GrSLType);
     if (kFillAA_GrProcessorEdgeType == fEdgeType || kHairlineAA_GrProcessorEdgeType == fEdgeType) {
         varyingHandler->addVarying("GradCoeffs", &gradCoeffs, kHigh_GrSLPrecision);
-        vertBuilder->codeAppendf("highfloat k = %s[0], l = %s[1], m = %s[2];",
+        vertBuilder->codeAppendf("float k = %s[0], l = %s[1], m = %s[2];",
                                  v.vsOut(), v.vsOut(), v.vsOut());
-        vertBuilder->codeAppendf("highfloat2 gk = highfloat2(%s[0][0], %s[1][0]), "
-                                            "gl = highfloat2(%s[0][1], %s[1][1]), "
-                                            "gm = highfloat2(%s[0][2], %s[1][2]);",
+        vertBuilder->codeAppendf("float2 gk = float2(%s[0][0], %s[1][0]), "
+                                        "gl = float2(%s[0][1], %s[1][1]), "
+                                        "gm = float2(%s[0][2], %s[1][2]);",
                                  devkLMMatrixName, devkLMMatrixName, devkLMMatrixName,
                                  devkLMMatrixName, devkLMMatrixName, devkLMMatrixName);
-        vertBuilder->codeAppendf("%s = highfloat4(3 * k * gk, -m * gl - l * gm);",
+        vertBuilder->codeAppendf("%s = float4(3 * k * gk, -m * gl - l * gm);",
                                  gradCoeffs.vsOut());
     }
 
@@ -585,9 +585,9 @@
                          args.fFPCoordTransformHandler);
 
 
-    GrShaderVar edgeAlpha("edgeAlpha", kHighFloat_GrSLType, 0);
-    GrShaderVar gF("gF", kHighFloat2_GrSLType, 0);
-    GrShaderVar func("func", kHighFloat_GrSLType, 0);
+    GrShaderVar edgeAlpha("edgeAlpha", kFloat_GrSLType, 0);
+    GrShaderVar gF("gF", kFloat2_GrSLType, 0);
+    GrShaderVar func("func", kFloat_GrSLType, 0);
 
     fragBuilder->declAppend(edgeAlpha);
     fragBuilder->declAppend(gF);
@@ -639,7 +639,7 @@
     }
 
 
-    fragBuilder->codeAppendf("%s = highfloat4(%s);", args.fOutputCoverage, edgeAlpha.c_str());
+    fragBuilder->codeAppendf("%s = float4(%s);", args.fOutputCoverage, edgeAlpha.c_str());
 }
 
 void GrGLCubicEffect::GenKey(const GrGeometryProcessor& gp,
diff --git a/src/gpu/effects/GrBicubicEffect.cpp b/src/gpu/effects/GrBicubicEffect.cpp
index 743b9e09..1a93977 100644
--- a/src/gpu/effects/GrBicubicEffect.cpp
+++ b/src/gpu/effects/GrBicubicEffect.cpp
@@ -75,21 +75,21 @@
                             "-9.0 / 18.0,   0.0 / 18.0,   9.0 / 18.0,  0.0 / 18.0,"
                             "15.0 / 18.0, -36.0 / 18.0,  27.0 / 18.0, -6.0 / 18.0,"
                             "-7.0 / 18.0,  21.0 / 18.0, -21.0 / 18.0,  7.0 / 18.0);");
-    fragBuilder->codeAppendf("highfloat2 coord = %s - %s * highfloat2(0.5);", coords2D.c_str(), imgInc);
+    fragBuilder->codeAppendf("float2 coord = %s - %s * float2(0.5);", coords2D.c_str(), imgInc);
     // We unnormalize the coord in order to determine our fractional offset (f) within the texel
     // We then snap coord to a texel center and renormalize. The snap prevents cases where the
     // starting coords are near a texel boundary and accumulations of imgInc would cause us to skip/
     // double hit a texel.
     fragBuilder->codeAppendf("coord /= %s;", imgInc);
-    fragBuilder->codeAppend("highfloat2 f = fract(coord);");
-    fragBuilder->codeAppendf("coord = (coord - f + highfloat2(0.5)) * %s;", imgInc);
+    fragBuilder->codeAppend("float2 f = fract(coord);");
+    fragBuilder->codeAppendf("coord = (coord - f + float2(0.5)) * %s;", imgInc);
     fragBuilder->codeAppend("half4 wx = kMitchellCoefficients * half4(1.0, f.x, f.x * f.x, f.x * f.x * f.x);");
     fragBuilder->codeAppend("half4 wy = kMitchellCoefficients * half4(1.0, f.y, f.y * f.y, f.y * f.y * f.y);");
     fragBuilder->codeAppend("half4 rowColors[4];");
     for (int y = 0; y < 4; ++y) {
         for (int x = 0; x < 4; ++x) {
             SkString coord;
-            coord.printf("coord + %s * highfloat2(%d, %d)", imgInc, x - 1, y - 1);
+            coord.printf("coord + %s * float2(%d, %d)", imgInc, x - 1, y - 1);
             SkString sampleVar;
             sampleVar.printf("rowColors[%d]", x);
             fDomain.sampleTexture(fragBuilder,
diff --git a/src/gpu/effects/GrBitmapTextGeoProc.cpp b/src/gpu/effects/GrBitmapTextGeoProc.cpp
index ad96951..0997b9e 100644
--- a/src/gpu/effects/GrBitmapTextGeoProc.cpp
+++ b/src/gpu/effects/GrBitmapTextGeoProc.cpp
@@ -32,12 +32,12 @@
 
         const char* atlasSizeInvName;
         fAtlasSizeInvUniform = uniformHandler->addUniform(kVertex_GrShaderFlag,
-                                                          kHighFloat2_GrSLType,
+                                                          kFloat2_GrSLType,
                                                           kHigh_GrSLPrecision,
                                                           "AtlasSizeInv",
                                                           &atlasSizeInvName);
 
-        GrGLSLVertToFrag uv(kHighFloat2_GrSLType);
+        GrGLSLVertToFrag uv(kFloat2_GrSLType);
         GrGLSLVertToFrag texIdx(kHalf_GrSLType);
         append_index_uv_varyings(args, btgp.inTextureCoords()->fName, atlasSizeInvName,
                                  &uv, &texIdx, nullptr);
diff --git a/src/gpu/effects/GrBlurredEdgeFragmentProcessor.cpp b/src/gpu/effects/GrBlurredEdgeFragmentProcessor.cpp
index ff997cd..1f894cc 100644
--- a/src/gpu/effects/GrBlurredEdgeFragmentProcessor.cpp
+++ b/src/gpu/effects/GrBlurredEdgeFragmentProcessor.cpp
@@ -25,10 +25,10 @@
                 args.fFp.cast<GrBlurredEdgeFragmentProcessor>();
         (void)_outer;
         fragBuilder->codeAppendf(
-                "half factor = half(1.0 - highfloat(%s.w));\n@switch (%d) {\n    case 0:\n        "
-                "factor = half(exp(highfloat(highfloat(-factor * factor) * 4.0)) - "
+                "half factor = half(1.0 - float(%s.w));\n@switch (%d) {\n    case 0:\n        "
+                "factor = half(exp(float(float(-factor * factor) * 4.0)) - "
                 "0.017999999999999999);\n        break;\n    case 1:\n        factor = "
-                "half(smoothstep(1.0, 0.0, highfloat(factor)));\n        break;\n}\n%s = "
+                "half(smoothstep(1.0, 0.0, float(factor)));\n        break;\n}\n%s = "
                 "half4(factor);\n",
                 args.fInputColor ? args.fInputColor : "half4(1)", _outer.mode(), args.fOutputColor);
     }
diff --git a/src/gpu/effects/GrCircleEffect.cpp b/src/gpu/effects/GrCircleEffect.cpp
index 7b4a9f7..ef4f913 100644
--- a/src/gpu/effects/GrCircleEffect.cpp
+++ b/src/gpu/effects/GrCircleEffect.cpp
@@ -28,11 +28,11 @@
                                                       kDefault_GrSLPrecision, "circle");
         fragBuilder->codeAppendf(
                 "half2 prevCenter;\nhalf prevRadius = %f;\nhalf d;\n@if (%d == 2 || %d == 3) {\n   "
-                " d = (highfloat(length((%s.xy - half2(sk_FragCoord.xy)) * %s.w)) - 1.0) * "
-                "%s.z;\n} else {\n    d = half((1.0 - highfloat(length((%s.xy - "
-                "half2(sk_FragCoord.xy)) * %s.w))) * highfloat(%s.z));\n}\n@if ((%d == 1 || %d == "
-                "3) || %d == 4) {\n    d = half(clamp(highfloat(d), 0.0, 1.0));\n} else {\n    d = "
-                "half(highfloat(d) > 0.5 ? 1.0 : 0.0);\n}\n%s = %s * d;\n",
+                " d = (float(length((%s.xy - half2(sk_FragCoord.xy)) * %s.w)) - 1.0) * %s.z;\n} "
+                "else {\n    d = half((1.0 - float(length((%s.xy - half2(sk_FragCoord.xy)) * "
+                "%s.w))) * float(%s.z));\n}\n@if ((%d == 1 || %d == 3) || %d == 4) {\n    d = "
+                "half(clamp(float(d), 0.0, 1.0));\n} else {\n    d = half(float(d) > 0.5 ? 1.0 : "
+                "0.0);\n}\n%s = %s * d;\n",
                 prevRadius, _outer.edgeType(), _outer.edgeType(),
                 args.fUniformHandler->getUniformCStr(fCircleVar),
                 args.fUniformHandler->getUniformCStr(fCircleVar),
diff --git a/src/gpu/effects/GrDistanceFieldGeoProc.cpp b/src/gpu/effects/GrDistanceFieldGeoProc.cpp
index c7cd9bb..44e5273 100644
--- a/src/gpu/effects/GrDistanceFieldGeoProc.cpp
+++ b/src/gpu/effects/GrDistanceFieldGeoProc.cpp
@@ -45,7 +45,7 @@
 
         const char* atlasSizeInvName;
         fAtlasSizeInvUniform = uniformHandler->addUniform(kVertex_GrShaderFlag,
-                                                          kHighFloat2_GrSLType,
+                                                          kFloat2_GrSLType,
                                                           kHigh_GrSLPrecision,
                                                           "AtlasSizeInv",
                                                           &atlasSizeInvName);
@@ -77,9 +77,9 @@
                              args.fFPCoordTransformHandler);
 
         // add varyings
-        GrGLSLVertToFrag uv(kHighFloat2_GrSLType);
+        GrGLSLVertToFrag uv(kFloat2_GrSLType);
         GrGLSLVertToFrag texIdx(kHalf_GrSLType);
-        GrGLSLVertToFrag st(kHighFloat2_GrSLType);
+        GrGLSLVertToFrag st(kFloat2_GrSLType);
         append_index_uv_varyings(args, dfTexEffect.inTextureCoords()->fName, atlasSizeInvName,
                                  &uv, &texIdx, &st);
 
@@ -92,7 +92,7 @@
             SkToBool(dfTexEffect.getFlags() & kAliased_DistanceFieldEffectFlag);
 
         // Use highp to work around aliasing issues
-        fragBuilder->codeAppendf("highfloat2 uv = %s;\n", uv.fsIn());
+        fragBuilder->codeAppendf("float2 uv = %s;\n", uv.fsIn());
         fragBuilder->codeAppend("half4 texColor;");
         append_multitexture_lookup(args, dfTexEffect.numTextureSamplers(),
                                    texIdx, "uv", "texColor");
@@ -340,14 +340,14 @@
 
         const char* atlasSizeInvName;
         fAtlasSizeInvUniform = uniformHandler->addUniform(kVertex_GrShaderFlag,
-                                                          kHighFloat2_GrSLType,
+                                                          kFloat2_GrSLType,
                                                           kHigh_GrSLPrecision,
                                                           "AtlasSizeInv",
                                                           &atlasSizeInvName);
 
-        GrGLSLVertToFrag uv(kHighFloat2_GrSLType);
+        GrGLSLVertToFrag uv(kFloat2_GrSLType);
         GrGLSLVertToFrag texIdx(kHalf_GrSLType);
-        GrGLSLVertToFrag st(kHighFloat2_GrSLType);
+        GrGLSLVertToFrag st(kFloat2_GrSLType);
         append_index_uv_varyings(args, dfTexEffect.inTextureCoords()->fName, atlasSizeInvName,
                                  &uv, &texIdx, &st);
 
@@ -371,7 +371,7 @@
                              args.fFPCoordTransformHandler);
 
         // Use highp to work around aliasing issues
-        fragBuilder->codeAppendf("highfloat2 uv = %s;", uv.fsIn());
+        fragBuilder->codeAppendf("float2 uv = %s;", uv.fsIn());
         fragBuilder->codeAppend("half4 texColor;");
         append_multitexture_lookup(args, dfTexEffect.numTextureSamplers(),
                                    texIdx, "uv", "texColor");
@@ -599,7 +599,7 @@
 
         const char* atlasSizeInvName;
         fAtlasSizeInvUniform = uniformHandler->addUniform(kVertex_GrShaderFlag,
-                                                          kHighFloat2_GrSLType,
+                                                          kFloat2_GrSLType,
                                                           kHigh_GrSLPrecision,
                                                           "AtlasSizeInv",
                                                           &atlasSizeInvName);
@@ -626,13 +626,13 @@
                              args.fFPCoordTransformHandler);
 
         // set up varyings
-        GrGLSLVertToFrag uv(kHighFloat2_GrSLType);
+        GrGLSLVertToFrag uv(kFloat2_GrSLType);
         GrGLSLVertToFrag texIdx(kHalf_GrSLType);
-        GrGLSLVertToFrag st(kHighFloat2_GrSLType);
+        GrGLSLVertToFrag st(kFloat2_GrSLType);
         append_index_uv_varyings(args, dfTexEffect.inTextureCoords()->fName, atlasSizeInvName,
                                  &uv, &texIdx, &st);
 
-        GrGLSLVertToFrag delta(kHighFloat_GrSLType);
+        GrGLSLVertToFrag delta(kFloat_GrSLType);
         varyingHandler->addVarying("Delta", &delta, kHigh_GrSLPrecision);
         if (dfTexEffect.getFlags() & kBGR_DistanceFieldEffectFlag) {
             vertBuilder->codeAppendf("%s = -%s.x/3.0;", delta.vsOut(), atlasSizeInvName);
@@ -649,7 +649,7 @@
 
         // create LCD offset adjusted by inverse of transform
         // Use highp to work around aliasing issues
-        fragBuilder->codeAppendf("highfloat2 uv = %s;\n", uv.fsIn());
+        fragBuilder->codeAppendf("float2 uv = %s;\n", uv.fsIn());
 
         if (isUniformScale) {
 #ifdef SK_VULKAN
diff --git a/src/gpu/effects/GrDitherEffect.cpp b/src/gpu/effects/GrDitherEffect.cpp
index 6f5266e..158c47e 100644
--- a/src/gpu/effects/GrDitherEffect.cpp
+++ b/src/gpu/effects/GrDitherEffect.cpp
@@ -30,12 +30,12 @@
                 "0.066666666666666666;\n        break;\n}\n@if (sk_Caps.integerSupport) {\n    "
                 "uint x = uint(sk_FragCoord.x);\n    uint y = uint(sk_FragCoord.y);\n    uint m = "
                 "(((((y & 1) << 5 | (x & 1) << 4) | (y & 2) << 2) | (x & 2) << 1) | (y & 4) >> 1) "
-                "| (x & 4) >> 2;\n    value = highfloat(highfloat(half(m)) / 64.0) - 0.4921875;\n} "
-                "else {\n    half4 modValues = half4(mod(sk_FragCoord.xyxy, highfloat4(half4(2.0, "
-                "2.0, 4.0, 4.0))));\n    half4 stepValues = half4(step(highfloat4(modValues), "
-                "highfloat4(half4(1.0, 1.0, 2.0, 2.0))));\n    value = highfloat(dot(stepValues, "
-                "half4(0.5, 0.25, 0.125, 0.0625))) - 0.46875;\n}\n%s = "
-                "half4(clamp(highfloat3(%s.xyz + value * range), 0.0, highfloat(%s.w)), %s.w);\n",
+                "| (x & 4) >> 2;\n    value = float(float(half(m)) / 64.0) - 0.4921875;\n} else "
+                "{\n    half4 modValues = half4(mod(sk_FragCoord.xyxy, float4(half4(2.0, 2.0, 4.0, "
+                "4.0))));\n    half4 stepValues = half4(step(float4(modValues), float4(half4(1.0, "
+                "1.0, 2.0, 2.0))));\n    value = float(dot(stepValues, half4(0.5, 0.25, 0.125, "
+                "0.0625))) - 0.46875;\n}\n%s = half4(clamp(float3(%s.xyz + value * range), 0.0, "
+                "float(%s.w)), %s.w);\n",
                 _outer.rangeType(), args.fOutputColor,
                 args.fInputColor ? args.fInputColor : "half4(1)",
                 args.fInputColor ? args.fInputColor : "half4(1)",
diff --git a/src/gpu/effects/GrEllipseEffect.cpp b/src/gpu/effects/GrEllipseEffect.cpp
index 3f35311..0790211 100644
--- a/src/gpu/effects/GrEllipseEffect.cpp
+++ b/src/gpu/effects/GrEllipseEffect.cpp
@@ -25,7 +25,7 @@
         (void)_outer;
         prevRadii = half2(-1.0);
         useScale = sk_Caps.floatPrecisionVaries;
-        fEllipseVar = args.fUniformHandler->addUniform(kFragment_GrShaderFlag, kHighFloat4_GrSLType,
+        fEllipseVar = args.fUniformHandler->addUniform(kFragment_GrShaderFlag, kFloat4_GrSLType,
                                                        kDefault_GrSLPrecision, "ellipse");
         if (useScale) {
             fScaleVar = args.fUniformHandler->addUniform(kFragment_GrShaderFlag, kHalf2_GrSLType,
@@ -35,15 +35,14 @@
                 "half2 prevCenter;\nhalf2 prevRadii = half2(%f, %f);\nbool useScale = %s;\nhalf2 d "
                 "= half2(sk_FragCoord.xy - %s.xy);\n@if (useScale) {\n    d *= %s.y;\n}\nhalf2 Z = "
                 "d * half2(%s.zw);\nhalf implicit = dot(Z, d) - 1.0;\nhalf grad_dot = 4.0 * dot(Z, "
-                "Z);\ngrad_dot = half(max(highfloat(grad_dot), 0.0001));\nhalf approx_dist = "
-                "highfloat(implicit) * inversesqrt(highfloat(grad_dot));\n@if (useScale) {\n    "
+                "Z);\ngrad_dot = half(max(float(grad_dot), 0.0001));\nhalf approx_dist = "
+                "float(implicit) * inversesqrt(float(grad_dot));\n@if (useScale) {\n    "
                 "approx_dist *= %s.x;\n}\nhalf alpha;\n@switch (%d) {\n    case 0:\n        alpha "
-                "= half(highfloat(approx_dist) > 0.0 ? 0.0 : 1.0);\n        break;\n    case 1:\n  "
-                "      alpha = half(clamp(0.5 - highfloat(approx_dist), 0.0, 1.0));\n        "
-                "break;\n    case 2:\n        alpha = half(highfloat(approx_dist) > 0.0 ? 1.0 : "
-                "0.0);\n        break;\n    case 3:\n        alpha = half(clamp(0.5 + "
-                "highfloat(approx_dist), 0.0, 1.0));\n        break;\n    default:\n        "
-                "discard;\n}\n%s = %s * alpha;\n",
+                "= half(float(approx_dist) > 0.0 ? 0.0 : 1.0);\n        break;\n    case 1:\n      "
+                "  alpha = half(clamp(0.5 - float(approx_dist), 0.0, 1.0));\n        break;\n    "
+                "case 2:\n        alpha = half(float(approx_dist) > 0.0 ? 1.0 : 0.0);\n        "
+                "break;\n    case 3:\n        alpha = half(clamp(0.5 + float(approx_dist), 0.0, "
+                "1.0));\n        break;\n    default:\n        discard;\n}\n%s = %s * alpha;\n",
                 prevRadii.fX, prevRadii.fY, (useScale ? "true" : "false"),
                 args.fUniformHandler->getUniformCStr(fEllipseVar),
                 fScaleVar.isValid() ? args.fUniformHandler->getUniformCStr(fScaleVar) : "half2(0)",
diff --git a/src/gpu/effects/GrEllipseEffect.fp b/src/gpu/effects/GrEllipseEffect.fp
index 3663d56..71e5d4d 100644
--- a/src/gpu/effects/GrEllipseEffect.fp
+++ b/src/gpu/effects/GrEllipseEffect.fp
@@ -13,7 +13,7 @@
 half2 prevRadii = half2(-1);
 // The ellipse uniform is (center.x, center.y, 1 / rx^2, 1 / ry^2)
 // The last two terms can underflow with halfs, so we use floats.
-uniform highfloat4 ellipse;
+uniform float4 ellipse;
 
 bool useScale = sk_Caps.floatPrecisionVaries;
 layout(when=useScale) uniform half2 scale;
diff --git a/src/gpu/effects/GrGaussianConvolutionFragmentProcessor.cpp b/src/gpu/effects/GrGaussianConvolutionFragmentProcessor.cpp
index dfbe17a..ee27aa8 100644
--- a/src/gpu/effects/GrGaussianConvolutionFragmentProcessor.cpp
+++ b/src/gpu/effects/GrGaussianConvolutionFragmentProcessor.cpp
@@ -64,8 +64,8 @@
     const GrShaderVar& kernel = uniformHandler->getUniformVariable(fKernelUni);
     const char* imgInc = uniformHandler->getUniformCStr(fImageIncrementUni);
 
-    fragBuilder->codeAppendf("highfloat2 coord = %s - %d.0 * %s;", coords2D.c_str(), ce.radius(), imgInc);
-    fragBuilder->codeAppend("highfloat2 coordSampled = half2(0, 0);");
+    fragBuilder->codeAppendf("float2 coord = %s - %d.0 * %s;", coords2D.c_str(), ce.radius(), imgInc);
+    fragBuilder->codeAppend("float2 coordSampled = half2(0, 0);");
 
     // Manually unroll loop because some drivers don't; yields 20-30% speedup.
     const char* kVecSuffix[4] = {".x", ".y", ".z", ".w"};
diff --git a/src/gpu/effects/GrMatrixConvolutionEffect.cpp b/src/gpu/effects/GrMatrixConvolutionEffect.cpp
index 063f8f3..73fce4d 100644
--- a/src/gpu/effects/GrMatrixConvolutionEffect.cpp
+++ b/src/gpu/effects/GrMatrixConvolutionEffect.cpp
@@ -66,7 +66,7 @@
     GrGLSLFPFragmentBuilder* fragBuilder = args.fFragBuilder;
     SkString coords2D = fragBuilder->ensureCoords2D(args.fTransformedCoords[0]);
     fragBuilder->codeAppend("half4 sum = half4(0, 0, 0, 0);");
-    fragBuilder->codeAppendf("highfloat2 coord = %s - %s * %s;", coords2D.c_str(), kernelOffset, imgInc);
+    fragBuilder->codeAppendf("float2 coord = %s - %s * %s;", coords2D.c_str(), kernelOffset, imgInc);
     fragBuilder->codeAppend("half4 c;");
 
     const char* kVecSuffix[4] = { ".x", ".y", ".z", ".w" };
diff --git a/src/gpu/effects/GrTextureDomain.cpp b/src/gpu/effects/GrTextureDomain.cpp
index c297560..671bec6 100644
--- a/src/gpu/effects/GrTextureDomain.cpp
+++ b/src/gpu/effects/GrTextureDomain.cpp
@@ -87,7 +87,7 @@
         case kIgnore_Mode: {
             builder->codeAppendf("%s = ", outColor);
             builder->appendTextureLookupAndModulate(inModulateColor, sampler, inCoords.c_str(),
-                                                    kHighFloat2_GrSLType, colorXformHelper);
+                                                    kFloat2_GrSLType, colorXformHelper);
             builder->codeAppend(";");
             break;
         }
@@ -98,7 +98,7 @@
 
             builder->codeAppendf("%s = ", outColor);
             builder->appendTextureLookupAndModulate(inModulateColor, sampler, clampedCoords.c_str(),
-                                                    kHighFloat2_GrSLType, colorXformHelper);
+                                                    kFloat2_GrSLType, colorXformHelper);
             builder->codeAppend(";");
             break;
         }
@@ -117,11 +117,11 @@
                 builder->codeAppend("half4 outside = half4(0.0, 0.0, 0.0, 0.0);");
                 builder->codeAppend("half4 inside = ");
                 builder->appendTextureLookupAndModulate(inModulateColor, sampler, inCoords.c_str(),
-                                                        kHighFloat2_GrSLType, colorXformHelper);
+                                                        kFloat2_GrSLType, colorXformHelper);
                 builder->codeAppend(";");
 
-                builder->codeAppendf("highfloat x = (%s).x;", inCoords.c_str());
-                builder->codeAppendf("highfloat y = (%s).y;", inCoords.c_str());
+                builder->codeAppendf("float x = (%s).x;", inCoords.c_str());
+                builder->codeAppendf("float y = (%s).y;", inCoords.c_str());
 
                 builder->codeAppendf("x = abs(2.0*(x - %s.x)/(%s.z - %s.x) - 1.0);",
                                      domain, domain, domain);
@@ -138,7 +138,7 @@
                 builder->codeAppendf("%s = any(outside) ? half4(0.0, 0.0, 0.0, 0.0) : ",
                                        outColor);
                 builder->appendTextureLookupAndModulate(inModulateColor, sampler, inCoords.c_str(),
-                                                        kHighFloat2_GrSLType, colorXformHelper);
+                                                        kFloat2_GrSLType, colorXformHelper);
                 builder->codeAppend(";");
             }
             break;
@@ -151,7 +151,7 @@
 
             builder->codeAppendf("%s = ", outColor);
             builder->appendTextureLookupAndModulate(inModulateColor, sampler, clampedCoords.c_str(),
-                                                    kHighFloat2_GrSLType, colorXformHelper);
+                                                    kFloat2_GrSLType, colorXformHelper);
             builder->codeAppend(";");
             break;
         }