cc/layers/picture_image_layer_unittest.cc

   1 // Copyright 2015 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #include "cc/layers/picture_image_layer.h"
   6
   7 #include "cc/resources/display_item.h"
   8 #include "cc/test/skia_common.h"
   9 #include "testing/gtest/include/gtest/gtest.h"
  10 #include "third_party/skia/include/core/SkBitmap.h"
  11 #include "third_party/skia/include/core/SkCanvas.h"
  12 #include "third_party/skia/include/core/SkColor.h"
  13
  14 namespace cc {
  15 namespace {
  16
  17 TEST(PictureImageLayerTest, PaintContentsToDisplayList) {
  18   scoped_refptr<PictureImageLayer> layer = PictureImageLayer::Create();
  19   gfx::Rect layer_rect(200, 200);
  20
  21   SkBitmap image_bitmap;
  22   unsigned char image_pixels[4 * 200 * 200] = {0};
  23   SkImageInfo info =
  24       SkImageInfo::MakeN32Premul(layer_rect.width(), layer_rect.height());
  25   image_bitmap.installPixels(info, image_pixels, info.minRowBytes());
  26   SkCanvas image_canvas(image_bitmap);
  27   image_canvas.clear(SK_ColorRED);
  28   SkPaint blue_paint;
  29   blue_paint.setColor(SK_ColorBLUE);
  30   image_canvas.drawRectCoords(0.f, 0.f, 100.f, 100.f, blue_paint);
  31   image_canvas.drawRectCoords(100.f, 100.f, 200.f, 200.f, blue_paint);
  32
  33   layer->SetBitmap(image_bitmap);
  34   layer->SetBounds(gfx::Size(layer_rect.width(), layer_rect.height()));
  35
  36   scoped_refptr<DisplayItemList> display_list =
  37       layer->PaintContentsToDisplayList(
  38           layer_rect, ContentLayerClient::PAINTING_BEHAVIOR_NORMAL);
  39   unsigned char actual_pixels[4 * 200 * 200] = {0};
  40   DrawDisplayList(actual_pixels, layer_rect, display_list);
  41
  42   EXPECT_EQ(0, memcmp(actual_pixels, image_pixels, 4 * 200 * 200));
  43 }
  44
  45 }  // namespace
  46 }  // namespace cc