submodule/skia/gm/tinybitmap.cpp

   1 /*
   2  * Copyright 2011 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/gm.h"
   9 #include "include/core/SkBitmap.h"
  10 #include "include/core/SkCanvas.h"
  11 #include "include/core/SkColorPriv.h"
  12 #include "include/core/SkPaint.h"
  13 #include "include/core/SkShader.h"
  14 #include "include/core/SkSize.h"
  15 #include "include/core/SkString.h"
  16 #include "include/core/SkTileMode.h"
  17
  18 namespace {
  19 class TinyBitmapGM : public skiagm::GM {
  20     void onOnceBeforeDraw() override { this->setBGColor(0xFFDDDDDD); }
  21
  22     SkString onShortName() override { return SkString("tinybitmap"); }
  23
  24     SkISize onISize() override { return SkISize::Make(100, 100); }
  25
  26     void onDraw(SkCanvas* canvas) override {
  27         SkBitmap bm;
  28         bm.allocN32Pixels(1, 1);
  29         *bm.getAddr32(0, 0) = SkPackARGB32(0x80, 0x80, 0, 0);
  30         SkPaint paint;
  31         paint.setAlphaf(0.5f);
  32         paint.setShader(bm.makeShader(SkTileMode::kRepeat, SkTileMode::kMirror,
  33                                       SkSamplingOptions()));
  34         canvas->drawPaint(paint);
  35     }
  36 };
  37 }  // namespace
  38
  39 DEF_GM( return new TinyBitmapGM; )