gm/repeated_bitmap.cpp

   1 /*
   2  * Copyright 2015 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 "Resources.h"
   9 #include "SkImage.h"
  10 #include "gm.h"
  11 #include "sk_tool_utils.h"
  12
  13 static void draw_rotated_image(SkCanvas* canvas, const SkImage* image) {
  14     sk_tool_utils::draw_checkerboard(canvas, SkColorSetRGB(156, 154, 156),
  15                                      SK_ColorWHITE, 12);
  16     if (!image) {
  17         return;
  18     }
  19     SkRect rect = SkRect::MakeLTRB(-68.0f, -68.0f, 68.0f, 68.0f);
  20     SkPaint paint;
  21     paint.setColor(SkColorSetRGB(49, 48, 49));
  22     SkScalar scale = SkTMin(128.0f / image->width(),
  23                             128.0f / image->height());
  24     SkScalar point[2] = {-0.5f * image->width(), -0.5f * image->height()};
  25     for (int j = 0; j < 4; ++j) {
  26         for (int i = 0; i < 4; ++i) {
  27             SkAutoCanvasRestore autoCanvasRestore(canvas, true);
  28             canvas->translate(96.0f + 192.0f * i, 96.0f + 192.0f * j);
  29             canvas->rotate(18.0f * (i + 4 * j));
  30             canvas->drawRect(rect, paint);
  31             canvas->scale(scale, scale);
  32             canvas->drawImage(image, point[0], point[1]);
  33         }
  34     }
  35 }
  36
  37 DEF_SIMPLE_GM(repeated_bitmap, canvas, 576, 576) {
  38     draw_rotated_image(canvas, GetResourceAsImage("randPixels.png").get());
  39 }
  40
  41 DEF_SIMPLE_GM(repeated_bitmap_jpg, canvas, 576, 576) {
  42     draw_rotated_image(canvas, GetResourceAsImage("color_wheel.jpg").get());
  43 }