src/third_party/skia/gm/factory.cpp

   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         SkString resourcePath = GetResourcePath();
  33         // Copyright-free file from http://openclipart.org/detail/29213/paper-plane-by-ddoo
  34         SkString filename = SkOSPath::SkPathJoin(resourcePath.c_str(), "plane.png");
  35         SkAutoDataUnref data(SkData::NewFromFileName(filename.c_str()));
  36         if (NULL != data.get()) {
  37             // Create a cache which will boot the pixels out anytime the
  38             // bitmap is unlocked.
  39             SkAutoTUnref<SkDiscardableMemoryPool> pool(
  40                 SkDiscardableMemoryPool::Create(1));
  41             SkAssertResult(SkInstallDiscardablePixelRef(
  42                 SkDecodingImageGenerator::Create(
  43                     data, SkDecodingImageGenerator::Options()),
  44                 &fBitmap, pool));
  45         }
  46     }
  47
  48     virtual SkString onShortName() {
  49         return SkString("factory");
  50     }
  51
  52     virtual SkISize onISize() {
  53         return SkISize::Make(640, 480);
  54     }
  55
  56     virtual void onDraw(SkCanvas* canvas) {
  57         canvas->drawBitmap(fBitmap, 0, 0);
  58     }
  59
  60     // Skip cross process pipe due to https://code.google.com/p/skia/issues/detail?id=1520
  61     virtual uint32_t onGetFlags() const {
  62         return INHERITED::onGetFlags() | kSkipPipeCrossProcess_Flag;
  63     }
  64
  65 private:
  66     SkBitmap fBitmap;
  67
  68     typedef GM INHERITED;
  69 };
  70
  71 //////////////////////////////////////////////////////////////////////////////
  72
  73 static GM* MyFactory(void*) { return new FactoryGM; }
  74 static GMRegistry reg(MyFactory);
  75
  76 }  // namespace skiagm