baked in a few more precision modifiers

BUG=skia:

GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=5146

Change-Id: If824ddd3551fd50b66e98edc39f10fa60a0560dc
Reviewed-on: https://skia-review.googlesource.com/5146
Reviewed-by: Brian Salomon <bsalomon@google.com>
Commit-Queue: Ethan Nicholas <ethannicholas@google.com>

2 files changed, 6 insertions, 17 deletions

diff --git a/src/gpu/glsl/GrGLSLFragmentShaderBuilder.cpp b/src/gpu/glsl/GrGLSLFragmentShaderBuilder.cpp
index 46b1947f21..f6e1ad81d7 100644
--- a/src/gpu/glsl/GrGLSLFragmentShaderBuilder.cpp
+++ b/src/gpu/glsl/GrGLSLFragmentShaderBuilder.cpp
@@ -167,10 +167,9 @@ const char* GrGLSLFragmentShaderBuilder::fragmentPosition() {
             // depending on the surrounding code, accessing .xy with a uniform involved can
             // do the same thing. Copying gl_FragCoord.xy into a temp vec2 beforehand
             // (and only accessing .xy) seems to "fix" things.
-            const char* precision = glslCaps->usesPrecisionModifiers() ? "highp " : "";
-            this->codePrependf("\t%svec4 %s = vec4(%s.x, %s - %s.y, 1.0, 1.0);\n",
-                               precision, kCoordName, kTempName, rtHeightName, kTempName);
-            this->codePrependf("%svec2 %s = gl_FragCoord.xy;", precision, kTempName);
+            this->codePrependf("\thighp vec4 %s = vec4(%s.x, %s - %s.y, 1.0, 1.0);\n", kCoordName,
+                               kTempName, rtHeightName, kTempName);
+            this->codePrependf("highp vec2 %s = gl_FragCoord.xy;", kTempName);
             fSetupFragPosition = true;
         }
         SkASSERT(fProgramBuilder->fUniformHandles.fRTHeightUni.isValid());
@@ -359,11 +358,7 @@ void GrGLSLFragmentShaderBuilder::defineSampleOffsetArray(const char* name, cons
     SkSTArray<16, SkPoint, true> offsets;
     offsets.push_back_n(specs.fEffectiveSampleCnt);
     m.mapPoints(offsets.begin(), specs.fSampleLocations, specs.fEffectiveSampleCnt);
-    this->definitions().append("const ");
-    if (fProgramBuilder->glslCaps()->usesPrecisionModifiers()) {
-        this->definitions().append("highp ");
-    }
-    this->definitions().appendf("vec2 %s[] = vec2[](", name);
+    this->definitions().appendf("const highp vec2 %s[] = vec2[](", name);
     for (int i = 0; i < specs.fEffectiveSampleCnt; ++i) {
         this->definitions().appendf("vec2(%f, %f)", offsets[i].x(), offsets[i].y());
         this->definitions().append(i + 1 != specs.fEffectiveSampleCnt ? ", " : ");\n");
diff --git a/src/gpu/instanced/InstanceProcessor.cpp b/src/gpu/instanced/InstanceProcessor.cpp
index 45a183981a..fd9ddbd5ef 100644
--- a/src/gpu/instanced/InstanceProcessor.cpp
+++ b/src/gpu/instanced/InstanceProcessor.cpp
@@ -925,10 +925,7 @@ void GLSLInstanceProcessor::BackendCoverage::onEmitCode(GrGLSLVertexBuilder* v,
         v->codeAppendf("%s = rectCoverage;", fRectCoverage.vsOut());
     }
 
-    SkString coverage("float coverage");
-    if (f->getProgramBuilder()->glslCaps()->usesPrecisionModifiers()) {
-        coverage.prependf("lowp ");
-    }
+    SkString coverage("lowp float coverage");
     if (fBatchInfo.fInnerShapeTypes || (!fTweakAlphaForCoverage && fTriangleIsArc.fsIn())) {
         f->codeAppendf("%s;", coverage.c_str());
         coverage = "coverage";
@@ -955,10 +952,7 @@ void GLSLInstanceProcessor::BackendCoverage::onEmitCode(GrGLSLVertexBuilder* v,
 
     if (fBatchInfo.fInnerShapeTypes) {
         f->codeAppendf("// Inner shape.\n");
-        SkString innerCoverageDecl("float innerCoverage");
-        if (f->getProgramBuilder()->glslCaps()->usesPrecisionModifiers()) {
-            innerCoverageDecl.prependf("lowp ");
-        }
+        SkString innerCoverageDecl("lowp float innerCoverage");
         if (kOval_ShapeFlag == fBatchInfo.fInnerShapeTypes) {
             this->emitArc(f, fInnerEllipseCoords.fsIn(), fInnerEllipseName.fsIn(),
                           true /*ellipseCoordsNeedClamp*/, true /*ellipseCoordsMayBeNegative*/,