grab from latest android



git-svn-id: http://skia.googlecode.com/svn/trunk@27 2bbb7eff-a529-9590-31e7-b0007b416f81
diff --git a/src/core/SkBitmapProcShader.h b/src/core/SkBitmapProcShader.h
new file mode 100644
index 0000000..09d53af
--- /dev/null
+++ b/src/core/SkBitmapProcShader.h
@@ -0,0 +1,59 @@
+/* libs/graphics/sgl/SkBitmapShader.h
+**
+** Copyright 2006, The Android Open Source Project
+**
+** Licensed under the Apache License, Version 2.0 (the "License"); 
+** you may not use this file except in compliance with the License. 
+** You may obtain a copy of the License at 
+**
+**     http://www.apache.org/licenses/LICENSE-2.0 
+**
+** Unless required by applicable law or agreed to in writing, software 
+** distributed under the License is distributed on an "AS IS" BASIS, 
+** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 
+** See the License for the specific language governing permissions and 
+** limitations under the License.
+*/
+
+#ifndef SkBitmapProcShader_DEFINED
+#define SkBitmapProcShader_DEFINED
+
+#include "SkShader.h"
+#include "SkBitmapProcState.h"
+
+class SkBitmapProcShader : public SkShader {
+public:
+    SkBitmapProcShader(const SkBitmap& src, TileMode tx, TileMode ty);
+
+    // overrides from SkShader
+    virtual bool setContext(const SkBitmap&, const SkPaint&, const SkMatrix&);
+    virtual uint32_t getFlags() { return fFlags; }
+    virtual void shadeSpan(int x, int y, SkPMColor dstC[], int count);
+    virtual void shadeSpan16(int x, int y, uint16_t dstC[], int count);
+    virtual void beginSession();
+    virtual void endSession();
+    virtual bool asABitmap(SkBitmap*, SkMatrix*, TileMode*);
+
+    static bool CanDo(const SkBitmap&, TileMode tx, TileMode ty);
+
+    static SkFlattenable* CreateProc(SkFlattenableReadBuffer& buffer) { 
+        return SkNEW_ARGS(SkBitmapProcShader, (buffer));
+    }
+
+    // override from flattenable
+    virtual bool toDumpString(SkString* str) const;
+
+protected:
+    SkBitmapProcShader(SkFlattenableReadBuffer& );
+    virtual void flatten(SkFlattenableWriteBuffer& );
+    virtual Factory getFactory() { return CreateProc; }
+
+    SkBitmap          fRawBitmap;   // experimental for RLE encoding
+    SkBitmapProcState fState;
+    uint32_t          fFlags;
+
+private:    
+    typedef SkShader INHERITED;
+};
+
+#endif