1 files changed, 63 insertions, 0 deletions
diff --git a/src/gpu/GrPathRendererChain.h b/src/gpu/GrPathRendererChain.h
new file mode 100644
index 0000000000..5719484921
--- /dev/null
+++ b/src/gpu/GrPathRendererChain.h
@@ -0,0 +1,63 @@
+
+/*
+ * 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 GrPathRendererChain_DEFINED
+#define GrPathRendererChain_DEFINED
+
+#include "GrRefCnt.h"
+#include "SkTArray.h"
+
+class GrContext;
+class GrDrawTarget;
+class SkPath;
+class GrPathRenderer;
+
+/**
+ * Keeps track of a ordered list of path renderers. When a path needs to be
+ * drawn this list is scanned to find the most preferred renderer. To add your
+ * path renderer to the list implement the GrPathRenderer::AddPathRenderers
+ * function.
+ */
+class GrPathRendererChain : public SkRefCnt {
+public:
+
+    enum UsageFlags {
+        kNone_UsageFlag      = 0,
+        kNonAAOnly_UsageFlag = 1,
+    };
+
+    GrPathRendererChain(GrContext* context, UsageFlags flags);
+
+    ~GrPathRendererChain();
+
+    // takes a ref and unrefs in destructor
+    GrPathRenderer* addPathRenderer(GrPathRenderer* pr);
+
+    GrPathRenderer* getPathRenderer(const GrDrawTarget* target,
+                                    const SkPath& path,
+                                    GrPathFill fill);
+
+private:
+
+    GrPathRendererChain();
+
+    void init();
+
+    enum {
+        kPreAllocCount = 8,
+    };
+    bool fInit;
+    GrContext*                                          fOwner;
+    UsageFlags                                          fFlags;
+    SkSTArray<kPreAllocCount, GrPathRenderer*, true>    fChain;
+};
+
+GR_MAKE_BITFIELD_OPS(GrPathRendererChain::UsageFlags)
+
+#endif