submodule/skia/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 "gm/gm.h"
   9 #include "include/core/SkCanvas.h"
  10 #include "include/core/SkColor.h"
  11 #include "include/core/SkImage.h"
  12 #include "include/core/SkPaint.h"
  13 #include "include/core/SkRect.h"
  14 #include "include/core/SkRefCnt.h"
  15 #include "include/core/SkScalar.h"
  16 #include "include/core/SkString.h"
  17 #include "include/core/SkTypes.h"
  18 #include "tools/Resources.h"
  19 #include "tools/ToolUtils.h"
  20
  21 static skiagm::DrawResult draw_rotated_image(SkCanvas* canvas, const SkImage* image,
  22                                              SkString* errorMsg) {
  23     ToolUtils::draw_checkerboard(canvas, SkColorSetRGB(156, 154, 156), SK_ColorWHITE, 12);
  24     if (!image) {
  25         *errorMsg = "No image. Did you forget to set the resourcePath?";
  26         return skiagm::DrawResult::kFail;
  27     }
  28     SkRect rect = SkRect::MakeLTRB(-68.0f, -68.0f, 68.0f, 68.0f);
  29     SkPaint paint;
  30     paint.setColor(SkColorSetRGB(49, 48, 49));
  31     SkScalar scale = std::min(128.0f / image->width(),
  32                             128.0f / image->height());
  33     SkScalar point[2] = {-0.5f * image->width(), -0.5f * image->height()};
  34     for (int j = 0; j < 4; ++j) {
  35         for (int i = 0; i < 4; ++i) {
  36             SkAutoCanvasRestore autoCanvasRestore(canvas, true);
  37             canvas->translate(96.0f + 192.0f * i, 96.0f + 192.0f * j);
  38             canvas->rotate(18.0f * (i + 4 * j));
  39             canvas->drawRect(rect, paint);
  40             canvas->scale(scale, scale);
  41             canvas->drawImage(image, point[0], point[1]);
  42         }
  43     }
  44     return skiagm::DrawResult::kOk;
  45 }
  46
  47 DEF_SIMPLE_GM_CAN_FAIL(repeated_bitmap, canvas, errorMsg, 576, 576) {
  48     return draw_rotated_image(canvas, GetResourceAsImage("images/randPixels.png").get(), errorMsg);
  49 }
  50
  51 DEF_SIMPLE_GM_CAN_FAIL(repeated_bitmap_jpg, canvas, errorMsg, 576, 576) {
  52     return draw_rotated_image(canvas, GetResourceAsImage("images/color_wheel.jpg").get(), errorMsg);
  53 }