Use vertex attributes for dash effect in gpu

This will allow us to batch dashed lines together when drawing. Also, this removes the need for
a coord transform matrix in the shader, thus we save the cost of uploading a new matrix uniform
everytime we do a simple transform to the dashed line we are drawing.

BUG=skia:
R=bsalomon@google.com

Author: egdaniel@google.com

Review URL: https://codereview.chromium.org/326103002

1 files changed, 9 insertions, 1 deletions

diff --git a/src/core/SkStrokeRec.cpp b/src/core/SkStrokeRec.cpp
index ce744e501b..a4c73af2c5 100644
--- a/src/core/SkStrokeRec.cpp
+++ b/src/core/SkStrokeRec.cpp
@@ -24,7 +24,15 @@ SkStrokeRec::SkStrokeRec(const SkStrokeRec& src) {
 }
 
 SkStrokeRec::SkStrokeRec(const SkPaint& paint) {
-    switch (paint.getStyle()) {
+    this->init(paint, paint.getStyle());
+}
+
+SkStrokeRec::SkStrokeRec(const SkPaint& paint, SkPaint::Style styleOverride) {
+    this->init(paint, styleOverride);
+}
+
+void SkStrokeRec::init(const SkPaint& paint, SkPaint::Style style) {
+    switch (style) {
         case SkPaint::kFill_Style:
             fWidth = kStrokeRec_FillStyleWidth;
             fStrokeAndFill = false;