Add GrContextOption to disable distance field path renderer

We're going to hide the path renderer bitfield behind a testing-only flag,
but clients may want to suppress this path renderer in particular, so a
dedicated flag makes sense.

Bug: skia:
Change-Id: I6cc4049243b5d3c129a824dfe7c1a65a70a05ccd
Reviewed-on: https://skia-review.googlesource.com/40083
Reviewed-by: Brian Salomon <bsalomon@google.com>
Commit-Queue: Brian Osman <brianosman@google.com>

1 files changed, 3 insertions, 0 deletions

diff --git a/src/gpu/GrContext.cpp b/src/gpu/GrContext.cpp
index 8714b20da7..907f82c51b 100644
--- a/src/gpu/GrContext.cpp
+++ b/src/gpu/GrContext.cpp
@@ -197,6 +197,9 @@ bool GrContext::init(const GrContextOptions& options) {
     GrPathRendererChain::Options prcOptions;
     prcOptions.fAllowPathMaskCaching = options.fAllowPathMaskCaching;
     prcOptions.fGpuPathRenderers = options.fGpuPathRenderers;
+    if (options.fDisableDistanceFieldPaths) {
+        prcOptions.fGpuPathRenderers &= ~GrContextOptions::GpuPathRenderers::kDistanceField;
+    }
     fDrawingManager.reset(new GrDrawingManager(this, prcOptions, &fSingleOwner));
 
     fAtlasGlyphCache = new GrAtlasGlyphCache(this, options.fGlyphCacheTextureMaximumBytes);