Use a prioritized list of path renderers in Gr.
http://codereview.appspot.com/4867058
git-svn-id: http://skia.googlecode.com/svn/trunk@2143 2bbb7eff-a529-9590-31e7-b0007b416f81
diff --git a/gpu/src/GrDefaultPathRenderer.h b/gpu/src/GrDefaultPathRenderer.h
new file mode 100644
index 0000000..e11716e
--- /dev/null
+++ b/gpu/src/GrDefaultPathRenderer.h
@@ -0,0 +1,58 @@
+/*
+ * Copyright 2011 Google Inc.
+ *
+ * Use of this source code is governed by a BSD-style license that can be
+ * found in the LICENSE file.
+ */
+
+#ifndef GrDefaultPathRenderer_DEFINED
+#define GrDefaultPathRenderer_DEFINED
+
+#include "GrPathRenderer.h"
+#include "SkTemplates.h"
+
+/**
+ * Subclass that renders the path using the stencil buffer to resolve fill
+ * rules (e.g. winding, even-odd)
+ */
+class GR_API GrDefaultPathRenderer : public GrPathRenderer {
+public:
+ GrDefaultPathRenderer(bool separateStencilSupport,
+ bool stencilWrapOpsSupport);
+
+ virtual bool canDrawPath(const SkPath& path,
+ GrPathFill fill) const { return true; }
+
+ virtual bool requiresStencilPass(const GrDrawTarget* target,
+ const SkPath& path,
+ GrPathFill fill) const;
+
+ virtual void drawPath(GrDrawTarget::StageBitfield stages);
+ virtual void drawPathToStencil();
+
+protected:
+ virtual void pathWillClear();
+
+private:
+
+ void onDrawPath(GrDrawTarget::StageBitfield stages, bool stencilOnly);
+
+ bool createGeom(GrScalar srcSpaceTol,
+ GrDrawTarget::StageBitfield stages);
+
+ bool fSeparateStencil;
+ bool fStencilWrapOps;
+
+ int fSubpathCount;
+ SkAutoSTMalloc<8, uint16_t> fSubpathVertCount;
+ int fIndexCnt;
+ int fVertexCnt;
+ GrScalar fPreviousSrcTol;
+ GrDrawTarget::StageBitfield fPreviousStages;
+ GrPrimitiveType fPrimitiveType;
+ bool fUseIndexedDraw;
+
+ typedef GrPathRenderer INHERITED;
+};
+
+#endif