grab from latest android



git-svn-id: http://skia.googlecode.com/svn/trunk@27 2bbb7eff-a529-9590-31e7-b0007b416f81
diff --git a/src/gl/SkGLDevice_SWLayer.h b/src/gl/SkGLDevice_SWLayer.h
new file mode 100644
index 0000000..7e61370
--- /dev/null
+++ b/src/gl/SkGLDevice_SWLayer.h
@@ -0,0 +1,49 @@
+#ifndef SkGLDevice_SWLayer_DEFINED
+#define SkGLDevice_SWLayer_DEFINED
+
+#include "SkGLDevice.h"
+
+class SkGLDevice_SWLayer : public SkGLDevice {
+public:
+    SkGLDevice_SWLayer(const SkBitmap& bitmap);
+    virtual ~SkGLDevice_SWLayer();
+
+    // overrides from SkGLDevice
+    virtual TexOrientation bindDeviceAsTexture();
+
+    // overrides from SkDevice
+    virtual void drawPaint(const SkDraw&, const SkPaint& paint);
+    virtual void drawPoints(const SkDraw&, SkCanvas::PointMode mode, size_t count,
+                            const SkPoint[], const SkPaint& paint);
+    virtual void drawRect(const SkDraw&, const SkRect& r,
+                          const SkPaint& paint);
+    virtual void drawPath(const SkDraw&, const SkPath& path,
+                          const SkPaint& paint);
+    virtual void drawBitmap(const SkDraw&, const SkBitmap& bitmap,
+                            const SkMatrix& matrix, const SkPaint& paint);
+    virtual void drawSprite(const SkDraw&, const SkBitmap& bitmap,
+                            int x, int y, const SkPaint& paint);
+    virtual void drawText(const SkDraw&, const void* text, size_t len,
+                          SkScalar x, SkScalar y, const SkPaint& paint);
+    virtual void drawPosText(const SkDraw&, const void* text, size_t len,
+                             const SkScalar pos[], SkScalar constY,
+                             int scalarsPerPos, const SkPaint& paint);
+    virtual void drawTextOnPath(const SkDraw&, const void* text, size_t len,
+                                const SkPath& path, const SkMatrix* matrix,
+                                const SkPaint& paint);
+    virtual void drawVertices(const SkDraw&, SkCanvas::VertexMode, int vertexCount,
+                              const SkPoint verts[], const SkPoint texs[],
+                              const SkColor colors[], SkXfermode* xmode,
+                              const uint16_t indices[], int indexCount,
+                              const SkPaint& paint);
+    virtual void drawDevice(const SkDraw&, SkDevice*, int x, int y,
+                            const SkPaint&);
+
+private:
+    GLuint  fTextureID;
+
+    typedef SkGLDevice INHERITED;
+};
+
+#endif
+