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/SkCanvas.h"
  12 #include "third_party/skia/include/core/SkColor.h"
  13 #include "third_party/skia/include/core/SkImage.h"
  14 #include "third_party/skia/include/core/SkSurface.h"
  15
  16 namespace cc {
  17 namespace {
  18
  19 TEST(PictureImageLayerTest, PaintContentsToDisplayList) {
  20   scoped_refptr<PictureImageLayer> layer =
  21       PictureImageLayer::Create(LayerSettings());
  22   gfx::Rect layer_rect(200, 200);
  23
  24   unsigned char image_pixels[4 * 200 * 200] = {0};
  25   SkImageInfo info =
  26       SkImageInfo::MakeN32Premul(layer_rect.width(), layer_rect.height());
  27   skia::RefPtr<SkSurface> image_surface = skia::AdoptRef(
  28       SkSurface::NewRasterDirect(info, image_pixels, info.minRowBytes()));
  29   SkCanvas* image_canvas = image_surface->getCanvas();
  30   image_canvas->clear(SK_ColorRED);
  31   SkPaint blue_paint;
  32   blue_paint.setColor(SK_ColorBLUE);
  33   image_canvas->drawRectCoords(0.f, 0.f, 100.f, 100.f, blue_paint);
  34   image_canvas->drawRectCoords(100.f, 100.f, 200.f, 200.f, blue_paint);
  35
  36   skia::RefPtr<const SkImage> image =
  37       skia::AdoptRef(image_surface->newImageSnapshot());
  38   layer->SetImage(image.Pass());
  39   layer->SetBounds(gfx::Size(layer_rect.width(), layer_rect.height()));
  40
  41   scoped_refptr<DisplayItemList> display_list =
  42       layer->PaintContentsToDisplayList(
  43           layer_rect, ContentLayerClient::PAINTING_BEHAVIOR_NORMAL);
  44   unsigned char actual_pixels[4 * 200 * 200] = {0};
  45   DrawDisplayList(actual_pixels, layer_rect, display_list);
  46
  47   EXPECT_EQ(0, memcmp(actual_pixels, image_pixels, 4 * 200 * 200));
  48 }
  49
  50 }  // namespace
  51 }  // namespace cc