Add SkImage->draw() call with src and dst rects.

gm/image.cpp

 /*
  * Copyright 2011 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 "SkSurface.h"
 #include "SkCanvas.h"
@@ skipping 73 matching lines @@
     drawContents(surf, SK_ColorBLUE);
 
     SkPaint paint;
 //    paint.setFilterBitmap(true);
 //    paint.setAlpha(0x80);
 
     imgR->draw(canvas, 0, 0, &paint);
     imgG->draw(canvas, 0, 80, &paint);
     surf->draw(canvas, 0, 160, &paint);
 
+    SkRect src1, src2, src3;
+    src1.set(0, 0, surf->width(), surf->height());
+    src2.set(-surf->width() / 2, -surf->height() / 2, surf->width(), surf->height());
+    src3.set(0, 0, surf->width() / 2, surf->height() / 2);
+
+    SkRect dst1, dst2, dst3, dst4;
+    dst1.set(0, 240, 65, 305);
+    dst2.set(0, 320, 65, 385);
+    dst3.set(0, 400, 65, 465);
+    dst4.set(0, 480, 65, 545);
+
+    imgR->draw(canvas, &src1, dst1, &paint);
+    imgG->draw(canvas, &src2, dst2, &paint);
+    imgR->draw(canvas, &src3, dst3, &paint);
+    imgG->draw(canvas, NULL, dst4, &paint);
+
     imgG->unref();
     imgR->unref();
 }
 
 class ImageGM : public skiagm::GM {
     void*   fBuffer;
     size_t  fBufferSize;
     SkSize  fSize;
     enum {
         W = 64,
@@ skipping 11 matching lines @@
         sk_free(fBuffer);
     }
 
 
 protected:
     virtual SkString onShortName() {
         return SkString("image-surface");
     }
 
     virtual SkISize onISize() {
-        return SkISize::Make(800, 500);
+        return SkISize::Make(800, 1200);
     }
 
     virtual void onDraw(SkCanvas* canvas) {
         drawJpeg(canvas, this->getISize());
 
         canvas->scale(2, 2);
 
         static const char* kLabel1 = "Original Img";
         static const char* kLabel2 = "Modified Img";
         static const char* kLabel3 = "Cur Surface";
+        static const char* kLabel4 = "Full Crop";
+        static const char* kLabel5 = "Over-crop";
+        static const char* kLabel6 = "Upper-left";
+        static const char* kLabel7 = "No Crop";
 
-        static const char* kLabel4 = "Pre-Alloc Img";
-        static const char* kLabel5 = "New Alloc Img";
-        static const char* kLabel6 = "SkPicture";
-        static const char* kLabel7 = "GPU";
+        static const char* kLabel8 = "Pre-Alloc Img";
+        static const char* kLabel9 = "New Alloc Img";
+        static const char* kLabel10 = "SkPicture";
+        static const char* kLabel11 = "GPU";
 
         SkPaint textPaint;
 
         canvas->drawText(kLabel1, strlen(kLabel1), 10,  60, textPaint);
         canvas->drawText(kLabel2, strlen(kLabel2), 10, 140, textPaint);
         canvas->drawText(kLabel3, strlen(kLabel3), 10, 220, textPaint);
+        canvas->drawText(kLabel4, strlen(kLabel4), 10, 300, textPaint);
+        canvas->drawText(kLabel5, strlen(kLabel5), 10, 380, textPaint);
+        canvas->drawText(kLabel6, strlen(kLabel6), 10, 460, textPaint);
+        canvas->drawText(kLabel7, strlen(kLabel7), 10, 540, textPaint);
 
-        canvas->drawText(kLabel4, strlen(kLabel4),  80, 10, textPaint);
-        canvas->drawText(kLabel5, strlen(kLabel5), 160, 10, textPaint);
-        canvas->drawText(kLabel6, strlen(kLabel6), 250, 10, textPaint);
-        canvas->drawText(kLabel7, strlen(kLabel7), 340, 10, textPaint);
+        canvas->drawText(kLabel8, strlen(kLabel8),  80, 10, textPaint);
+        canvas->drawText(kLabel9, strlen(kLabel9), 160, 10, textPaint);
+        canvas->drawText(kLabel10, strlen(kLabel10), 250, 10, textPaint);
+        canvas->drawText(kLabel11, strlen(kLabel11), 340, 10, textPaint);
 
         canvas->translate(80, 20);
 
         // since we draw into this directly, we need to start fresh
         sk_bzero(fBuffer, fBufferSize);
 
         SkImage::Info info;
 
         info.fWidth = W;
         info.fHeight = H;
@@ skipping 26 matching lines @@
     }
 
 private:
     typedef skiagm::GM INHERITED;
 };
 
 //////////////////////////////////////////////////////////////////////////////
 
 static skiagm::GM* MyFactory(void*) { return new ImageGM; }
 static skiagm::GMRegistry reg(MyFactory);