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, 4 insertions, 0 deletions

diff --git a/include/core/SkStrokeRec.h b/include/core/SkStrokeRec.h
index 1e0ec880f7..42bed8cbe7 100644
--- a/include/core/SkStrokeRec.h
+++ b/include/core/SkStrokeRec.h
@@ -21,6 +21,7 @@ public:
     SkStrokeRec(InitStyle style);
 
     SkStrokeRec(const SkStrokeRec&);
+    SkStrokeRec(const SkPaint&, SkPaint::Style);
     explicit SkStrokeRec(const SkPaint&);
 
     enum Style {
@@ -90,6 +91,9 @@ public:
     }
 
 private:
+    void init(const SkPaint& paint, SkPaint::Style style);
+
+
     SkScalar        fWidth;
     SkScalar        fMiterLimit;
     SkPaint::Cap    fCap;