Add SkTileImageFilter sample to filterfastbounds GM.

gm/filterfastbounds.cpp

 /*
  * Copyright 2014 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #include "gm.h"
 #include "SkBlurImageFilter.h"
 #include "SkDropShadowImageFilter.h"
 #include "SkImageSource.h"
 #include "SkOffsetImageFilter.h"
 #include "SkPictureImageFilter.h"
 #include "SkPictureRecorder.h"
 #include "SkRandom.h"
 #include "SkSurface.h"
+#include "SkTileImageFilter.h"
 
 namespace skiagm {
 
 // Each method of this type must draw its geometry inside 'r' using 'p'
 typedef void(*drawMth)(SkCanvas* canvas, const SkRect& r, const SkPaint& p);
 
 static void draw_rect(SkCanvas* canvas, const SkRect& r, const SkPaint& p) {
     canvas->drawRect(r, p);
 }
 
@@ skipping 76 matching lines @@
         SkMatrix rot;
         rot.setRotate(-33.3f);
 
         SkAutoTUnref<SkImageFilter> rotMIF(
             SkImageFilter::CreateMatrixFilter(rot, kLow_SkFilterQuality, source));
 
         add_paint(rotMIF, paints);
     }
 
     {
+        SkRect src = SkRect::MakeXYWH(20, 20, 10, 10);
+        SkRect dst = SkRect::MakeXYWH(30, 30, 30, 30);
+        SkAutoTUnref<SkImageFilter> tileIF(
+            SkTileImageFilter::Create(src, dst, nullptr));
+
+        add_paint(tileIF, paints);
+    }
+
+    {
         static const SkDropShadowImageFilter::ShadowMode kBoth =
                     SkDropShadowImageFilter::kDrawShadowAndForeground_ShadowMode;
 
         SkAutoTUnref<SkImageFilter> dsif(
             SkDropShadowImageFilter::Create(10.0f, 10.0f,
                                             3.0f, 3.0f,
                                             SK_ColorRED, kBoth,
                                             source, nullptr));
 
         add_paint(dsif, paints);
@@ skipping 27 matching lines @@
 // and image filter
 class ImageFilterFastBoundGM : public GM {
 public:
     ImageFilterFastBoundGM() {
         this->setBGColor(sk_tool_utils::color_to_565(0xFFCCCCCC));
     }
 
 protected:
     static const int kTileWidth = 100;
     static const int kTileHeight = 100;
-    static const int kNumVertTiles = 6;
+    static const int kNumVertTiles = 7;
     static const int kNumXtraCols = 2;
 
     SkString onShortName() override{ return SkString("filterfastbounds"); }
 
     SkISize onISize() override{
         return SkISize::Make((SK_ARRAY_COUNT(gDrawMthds) + kNumXtraCols) * kTileWidth,
                              kNumVertTiles * kTileHeight);
     }
 
     static void draw_geom_with_paint(drawMth draw, const SkIPoint& off,
@@ skipping 146 matching lines @@
     }
 
 private:
     typedef GM INHERITED;
 };
 
 //////////////////////////////////////////////////////////////////////////////
 
 DEF_GM(return new ImageFilterFastBoundGM;)
 }