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      1 /*
      2  * Copyright 2012 Google Inc.
      3  *
      4  * Use of this source code is governed by a BSD-style license that can be
      5  * found in the LICENSE file.
      6  */
      7 
      8 #include "gm.h"
      9 
     10 #include "Resources.h"
     11 #include "SkCanvas.h"
     12 #include "SkData.h"
     13 #include "SkDecodingImageGenerator.h"
     14 #include "SkDiscardableMemoryPool.h"
     15 #include "SkDiscardablePixelRef.h"
     16 #include "SkImageDecoder.h"
     17 #include "SkImageGeneratorPriv.h"
     18 #include "SkOSFile.h"
     19 #include "SkStream.h"
     20 
     21 namespace skiagm {
     22 
     23 /**
     24  *  Draw a PNG created by SkBitmapFactory.
     25  */
     26 class FactoryGM : public GM {
     27 public:
     28     FactoryGM() {}
     29 
     30 protected:
     31     virtual void onOnceBeforeDraw() SK_OVERRIDE {
     32         // Copyright-free file from http://openclipart.org/detail/29213/paper-plane-by-ddoo
     33         SkString pngFilename = GetResourcePath("plane.png");
     34         SkAutoDataUnref data(SkData::NewFromFileName(pngFilename.c_str()));
     35         if (data.get()) {
     36             // Create a cache which will boot the pixels out anytime the
     37             // bitmap is unlocked.
     38             SkAutoTUnref<SkDiscardableMemoryPool> pool(
     39                 SkDiscardableMemoryPool::Create(1));
     40             SkAssertResult(SkInstallDiscardablePixelRef(
     41                 SkDecodingImageGenerator::Create(
     42                     data, SkDecodingImageGenerator::Options()),
     43                 &fBitmap, pool));
     44         }
     45     }
     46 
     47     virtual SkString onShortName() {
     48         return SkString("factory");
     49     }
     50 
     51     virtual SkISize onISize() {
     52         return SkISize::Make(640, 480);
     53     }
     54 
     55     virtual void onDraw(SkCanvas* canvas) {
     56         canvas->drawBitmap(fBitmap, 0, 0);
     57     }
     58 
     59     // Skip cross process pipe due to https://code.google.com/p/skia/issues/detail?id=1520
     60     virtual uint32_t onGetFlags() const {
     61         return INHERITED::onGetFlags() | kSkipPipeCrossProcess_Flag;
     62     }
     63 
     64 private:
     65     SkBitmap fBitmap;
     66 
     67     typedef GM INHERITED;
     68 };
     69 
     70 //////////////////////////////////////////////////////////////////////////////
     71 
     72 static GM* MyFactory(void*) { return new FactoryGM; }
     73 static GMRegistry reg(MyFactory);
     74 
     75 }  // namespace skiagm
     76