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/playback/display_item.h"
   8 #include "cc/test/skia_common.h"
   9 #include "cc/trees/layer_tree_settings.h"
  10 #include "testing/gtest/include/gtest/gtest.h"
  11 #include "third_party/skia/include/core/SkBitmap.h"
  12 #include "third_party/skia/include/core/SkCanvas.h"
  13 #include "third_party/skia/include/core/SkColor.h"
  14
  15 namespace cc {
  16 namespace {
  17
  18 TEST(PictureImageLayerTest, PaintContentsToDisplayList) {
  19   scoped_refptr<PictureImageLayer> layer =
  20       PictureImageLayer::Create(LayerSettings());
  21   gfx::Rect layer_rect(200, 200);
  22
  23   SkBitmap image_bitmap;
  24   unsigned char image_pixels[4 * 200 * 200] = {0};
  25   SkImageInfo info =
  26       SkImageInfo::MakeN32Premul(layer_rect.width(), layer_rect.height());
  27   image_bitmap.installPixels(info, image_pixels, info.minRowBytes());
  28   SkCanvas image_canvas(image_bitmap);
  29   image_canvas.clear(SK_ColorRED);
  30   SkPaint blue_paint;
  31   blue_paint.setColor(SK_ColorBLUE);
  32   image_canvas.drawRectCoords(0.f, 0.f, 100.f, 100.f, blue_paint);
  33   image_canvas.drawRectCoords(100.f, 100.f, 200.f, 200.f, blue_paint);
  34
  35   layer->SetBitmap(image_bitmap);
  36   layer->SetBounds(gfx::Size(layer_rect.width(), layer_rect.height()));
  37
  38   scoped_refptr<DisplayItemList> display_list =
  39       layer->PaintContentsToDisplayList(
  40           layer_rect, ContentLayerClient::PAINTING_BEHAVIOR_NORMAL);
  41   unsigned char actual_pixels[4 * 200 * 200] = {0};
  42   DrawDisplayList(actual_pixels, layer_rect, display_list);
  43
  44   EXPECT_EQ(0, memcmp(actual_pixels, image_pixels, 4 * 200 * 200));
  45 }
  46
  47 }  // namespace
  48 }  // namespace cc