Add support for transformedLocalCoords to GrDefaultGeoProc

src/gpu/GrGeometryProcessor.h

Index: src/gpu/GrGeometryProcessor.h
diff --git a/src/gpu/GrGeometryProcessor.h b/src/gpu/GrGeometryProcessor.h
index ea4e890ee1a424a71adf36a6ebf6af133e9cebbd..0cb996e7abd8c480ef18817045729872d3a88f98 100644
--- a/src/gpu/GrGeometryProcessor.h
+++ b/src/gpu/GrGeometryProcessor.h
@@ -22,7 +22,8 @@ public:
     GrGeometryProcessor()
         : INHERITED(false)
         , fWillUseGeoShader(false)
-        , fHasLocalCoords(false) {}
+        , fHasExplicitLocalCoords(false)
+        , fHasTransformedLocalCoords(false) {}
 
     bool willUseGeoShader() const override { return fWillUseGeoShader; }
 
@@ -45,6 +46,10 @@ public:
         SkFAIL("Unsupported\n");
     }
 
+    bool hasTransformedLocalCoords() const override { return fHasTransformedLocalCoords; }

[bsalomon, 2015/08/05 15:17:02]

should we be using enums rather than a set of bools?

+
+    bool hasExplicitLocalCoords() const override { return fHasExplicitLocalCoords; }
+
 protected:
     /**
      * Subclasses call this from their constructor to register vertex attributes.  Attributes
@@ -64,14 +69,26 @@ protected:
 
     void setWillUseGeoShader() { fWillUseGeoShader = true; }
 
-    // TODO hack see above
-    void setHasLocalCoords() { fHasLocalCoords = true; }
+    /**
+     * If a GrFragmentProcessor in the GrPipeline needs localCoods, we will provide them in one of
+     * three ways
+     * 1) LocalCoordTransform * Position - in Shader
+     * 2) LocalCoordTransform * ExplicitLocalCoords- in Shader
+     * 3) A transformation on the CPU uploaded via vertex attribute
+     */
+    void setHasExplicitLocalCoords() {
+        SkASSERT(!fHasTransformedLocalCoords);
+        fHasExplicitLocalCoords = true;
+    }
+    void setHasTransformedLocalCoords() {
+        SkASSERT(!fHasExplicitLocalCoords);
+        fHasTransformedLocalCoords = true;
+    }
 
 private:
-    bool hasExplicitLocalCoords() const override { return fHasLocalCoords; }
-
     bool fWillUseGeoShader;
-    bool fHasLocalCoords;
+    bool fHasExplicitLocalCoords;
+    bool fHasTransformedLocalCoords;
 
     typedef GrPrimitiveProcessor INHERITED;
 };