commit 7b046312edd9219ba8e66c255f5347c000b69ee1
author Chris Dalton <csmartdalton@google.com> Fri Feb 02 11:06:30 2018 -0700
committer Skia Commit-Bot <skia-commit-bot@chromium.org> Fri Feb 02 18:43:29 2018 +0000
tree 1119465d75682b9d5952e30695033d1105a24c93
parent 7a9263906c677c0fa5636521e3cc58ba60837720

ccpr: Don't use flat interpolation when it is slow

Bug: skia:
Change-Id: I1bc087187541183fdbaa5f2b93e8b8d287ac8ef8
Reviewed-on: https://skia-review.googlesource.com/102100
Commit-Queue: Chris Dalton <csmartdalton@google.com>
Reviewed-by: Jim Van Verth <jvanverth@google.com>
Reviewed-by: Brian Salomon <bsalomon@google.com>

src/gpu/ccpr/GrCCCubicShader.cpp

diff --git a/src/gpu/ccpr/GrCCCubicShader.cpp b/src/gpu/ccpr/GrCCCubicShader.cpp
index fbaf7d9..3bf8479 100644
--- a/src/gpu/ccpr/GrCCCubicShader.cpp
+++ b/src/gpu/ccpr/GrCCCubicShader.cpp
@@ -133,14 +133,16 @@
 
 void GrCCCubicCornerShader::onEmitVaryings(GrGLSLVaryingHandler* varyingHandler,
                                            GrGLSLVarying::Scope scope, SkString* code) {
+    using Interpolation = GrGLSLVaryingHandler::Interpolation;
+
     fdKLMDdx.reset(kFloat4_GrSLType, scope);
-    varyingHandler->addFlatVarying("dklmddx", &fdKLMDdx);
+    varyingHandler->addVarying("dklmddx", &fdKLMDdx, Interpolation::kCanBeFlat);
     code->appendf("%s = float4(%s[0].x, %s[1].x, %s[2].x, %s.x);",
                   OutName(fdKLMDdx), fKLMMatrix.c_str(), fKLMMatrix.c_str(),
                   fKLMMatrix.c_str(), fEdgeDistanceEquation.c_str());
 
     fdKLMDdy.reset(kFloat4_GrSLType, scope);
-    varyingHandler->addFlatVarying("dklmddy", &fdKLMDdy);
+    varyingHandler->addVarying("dklmddy", &fdKLMDdy, Interpolation::kCanBeFlat);
     code->appendf("%s = float4(%s[0].y, %s[1].y, %s[2].y, %s.y);",
                   OutName(fdKLMDdy), fKLMMatrix.c_str(), fKLMMatrix.c_str(),
                   fKLMMatrix.c_str(), fEdgeDistanceEquation.c_str());