cc/layers/nine_patch_layer_impl_unittest.cc

   1 // Copyright 2012 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 "base/containers/hash_tables.h"
   6 #include "cc/layers/append_quads_data.h"
   7 #include "cc/layers/nine_patch_layer_impl.h"
   8 #include "cc/quads/texture_draw_quad.h"
   9 #include "cc/resources/ui_resource_bitmap.h"
  10 #include "cc/resources/ui_resource_client.h"
  11 #include "cc/test/fake_impl_proxy.h"
  12 #include "cc/test/fake_output_surface.h"
  13 #include "cc/test/fake_ui_resource_layer_tree_host_impl.h"
  14 #include "cc/test/geometry_test_utils.h"
  15 #include "cc/test/layer_test_common.h"
  16 #include "cc/trees/single_thread_proxy.h"
  17 #include "testing/gmock/include/gmock/gmock.h"
  18 #include "testing/gtest/include/gtest/gtest.h"
  19 #include "ui/gfx/geometry/rect_conversions.h"
  20 #include "ui/gfx/geometry/safe_integer_conversions.h"
  21 #include "ui/gfx/transform.h"
  22
  23 namespace cc {
  24 namespace {
  25
  26 gfx::Rect ToRoundedIntRect(const gfx::RectF& rect_f) {
  27   return gfx::Rect(gfx::ToRoundedInt(rect_f.x()),
  28                    gfx::ToRoundedInt(rect_f.y()),
  29                    gfx::ToRoundedInt(rect_f.width()),
  30                    gfx::ToRoundedInt(rect_f.height()));
  31 }
  32
  33 void NinePatchLayerLayoutTest(const gfx::Size& bitmap_size,
  34                               const gfx::Rect& aperture_rect,
  35                               const gfx::Size& layer_size,
  36                               const gfx::Rect& border,
  37                               bool fill_center,
  38                               size_t expected_quad_size) {
  39   scoped_ptr<RenderPass> render_pass = RenderPass::Create();
  40   gfx::Rect visible_layer_rect(layer_size);
  41   gfx::Rect expected_remaining(border.x(),
  42                                border.y(),
  43                                layer_size.width() - border.width(),
  44                                layer_size.height() - border.height());
  45
  46   FakeImplProxy proxy;
  47   TestSharedBitmapManager shared_bitmap_manager;
  48   TestTaskGraphRunner task_graph_runner;
  49   FakeUIResourceLayerTreeHostImpl host_impl(&proxy, &shared_bitmap_manager,
  50                                             &task_graph_runner);
  51   host_impl.InitializeRenderer(FakeOutputSurface::Create3d());
  52
  53   scoped_ptr<NinePatchLayerImpl> layer =
  54       NinePatchLayerImpl::Create(host_impl.active_tree(), 1);
  55   layer->draw_properties().visible_layer_rect = visible_layer_rect;
  56   layer->SetBounds(layer_size);
  57   layer->SetHasRenderSurface(true);
  58   layer->draw_properties().render_target = layer.get();
  59
  60   UIResourceId uid = 1;
  61   bool is_opaque = false;
  62   UIResourceBitmap bitmap(bitmap_size, is_opaque);
  63
  64   host_impl.CreateUIResource(uid, bitmap);
  65   layer->SetUIResourceId(uid);
  66   layer->SetImageBounds(bitmap_size);
  67   layer->SetLayout(aperture_rect, border, fill_center);
  68   AppendQuadsData data;
  69   layer->AppendQuads(render_pass.get(), &data);
  70
  71   // Verify quad rects
  72   const QuadList& quads = render_pass->quad_list;
  73   EXPECT_EQ(expected_quad_size, quads.size());
  74
  75   Region remaining(visible_layer_rect);
  76   for (auto iter = quads.cbegin(); iter != quads.cend(); ++iter) {
  77     gfx::Rect quad_rect = iter->rect;
  78
  79     EXPECT_TRUE(visible_layer_rect.Contains(quad_rect)) << iter.index();
  80     EXPECT_TRUE(remaining.Contains(quad_rect)) << iter.index();
  81     remaining.Subtract(Region(quad_rect));
  82   }
  83
  84   // Check if the left-over quad is the same size as the mapped aperture quad in
  85   // layer space.
  86   if (!fill_center) {
  87     EXPECT_EQ(expected_remaining, gfx::ToEnclosedRect(remaining.bounds()));
  88   } else {
  89     EXPECT_TRUE(remaining.bounds().IsEmpty());
  90   }
  91
  92   // Verify UV rects
  93   gfx::Rect bitmap_rect(bitmap_size);
  94   Region tex_remaining(bitmap_rect);
  95   for (const auto& quad : quads) {
  96     const TextureDrawQuad* tex_quad = TextureDrawQuad::MaterialCast(quad);
  97     gfx::RectF tex_rect =
  98         gfx::BoundingRect(tex_quad->uv_top_left, tex_quad->uv_bottom_right);
  99     tex_rect.Scale(bitmap_size.width(), bitmap_size.height());
 100     tex_remaining.Subtract(Region(ToRoundedIntRect(tex_rect)));
 101   }
 102
 103   if (!fill_center) {
 104     EXPECT_EQ(aperture_rect, tex_remaining.bounds());
 105     Region aperture_region(aperture_rect);
 106     EXPECT_EQ(aperture_region, tex_remaining);
 107   } else {
 108     EXPECT_TRUE(remaining.bounds().IsEmpty());
 109   }
 110 }
 111
 112 TEST(NinePatchLayerImplTest, VerifyDrawQuads) {
 113   // Input is a 100x100 bitmap with a 40x50 aperture at x=20, y=30.
 114   // The bounds of the layer are set to 400x400.
 115   gfx::Size bitmap_size(100, 100);
 116   gfx::Size layer_size(400, 500);
 117   gfx::Rect aperture_rect(20, 30, 40, 50);
 118   gfx::Rect border(40, 40, 80, 80);
 119   bool fill_center = false;
 120   size_t expected_quad_size = 8;
 121   NinePatchLayerLayoutTest(bitmap_size,
 122                            aperture_rect,
 123                            layer_size,
 124                            border,
 125                            fill_center,
 126                            expected_quad_size);
 127
 128   // The bounds of the layer are set to less than the bitmap size.
 129   bitmap_size = gfx::Size(100, 100);
 130   layer_size = gfx::Size(40, 50);
 131   aperture_rect = gfx::Rect(20, 30, 40, 50);
 132   border = gfx::Rect(10, 10, 25, 15);
 133   fill_center = true;
 134   expected_quad_size = 9;
 135   NinePatchLayerLayoutTest(bitmap_size,
 136                            aperture_rect,
 137                            layer_size,
 138                            border,
 139                            fill_center,
 140                            expected_quad_size);
 141
 142   // Layer and image sizes are equal.
 143   bitmap_size = gfx::Size(100, 100);
 144   layer_size = gfx::Size(100, 100);
 145   aperture_rect = gfx::Rect(20, 30, 40, 50);
 146   border = gfx::Rect(20, 30, 40, 50);
 147   fill_center = true;
 148   expected_quad_size = 9;
 149   NinePatchLayerLayoutTest(bitmap_size,
 150                            aperture_rect,
 151                            layer_size,
 152                            border,
 153                            fill_center,
 154                            expected_quad_size);
 155 }
 156
 157 TEST(NinePatchLayerImplTest, VerifyDrawQuadsWithEmptyPatches) {
 158   // The top component of the 9-patch is empty, so there should be no quads for
 159   // the top three components.
 160   gfx::Size bitmap_size(100, 100);
 161   gfx::Size layer_size(100, 100);
 162   gfx::Rect aperture_rect(10, 0, 80, 90);
 163   gfx::Rect border(10, 0, 20, 10);
 164   bool fill_center = false;
 165   size_t expected_quad_size = 5;
 166   NinePatchLayerLayoutTest(bitmap_size,
 167                            aperture_rect,
 168                            layer_size,
 169                            border,
 170                            fill_center,
 171                            expected_quad_size);
 172
 173   // The top and left components of the 9-patch are empty, so there should be no
 174   // quads for the left and top components.
 175   bitmap_size = gfx::Size(100, 100);
 176   layer_size = gfx::Size(100, 100);
 177   aperture_rect = gfx::Rect(0, 0, 90, 90);
 178   border = gfx::Rect(0, 0, 10, 10);
 179   fill_center = false;
 180   expected_quad_size = 3;
 181   NinePatchLayerLayoutTest(bitmap_size,
 182                            aperture_rect,
 183                            layer_size,
 184                            border,
 185                            fill_center,
 186                            expected_quad_size);
 187
 188   // The aperture is the size of the bitmap and the center doesn't draw.
 189   bitmap_size = gfx::Size(100, 100);
 190   layer_size = gfx::Size(100, 100);
 191   aperture_rect = gfx::Rect(0, 0, 100, 100);
 192   border = gfx::Rect(0, 0, 0, 0);
 193   fill_center = false;
 194   expected_quad_size = 0;
 195   NinePatchLayerLayoutTest(bitmap_size,
 196                            aperture_rect,
 197                            layer_size,
 198                            border,
 199                            fill_center,
 200                            expected_quad_size);
 201
 202   // The aperture is the size of the bitmap and the center does draw.
 203   bitmap_size = gfx::Size(100, 100);
 204   layer_size = gfx::Size(100, 100);
 205   aperture_rect = gfx::Rect(0, 0, 100, 100);
 206   border = gfx::Rect(0, 0, 0, 0);
 207   fill_center = true;
 208   expected_quad_size = 1;
 209   NinePatchLayerLayoutTest(bitmap_size,
 210                            aperture_rect,
 211                            layer_size,
 212                            border,
 213                            fill_center,
 214                            expected_quad_size);
 215 }
 216
 217 TEST(NinePatchLayerImplTest, Occlusion) {
 218   gfx::Size layer_size(1000, 1000);
 219   gfx::Size viewport_size(1000, 1000);
 220
 221   LayerTestCommon::LayerImplTest impl;
 222
 223   SkBitmap sk_bitmap;
 224   sk_bitmap.allocN32Pixels(10, 10);
 225   sk_bitmap.setImmutable();
 226   UIResourceId uid = 5;
 227   UIResourceBitmap bitmap(sk_bitmap);
 228   impl.host_impl()->CreateUIResource(uid, bitmap);
 229
 230   NinePatchLayerImpl* nine_patch_layer_impl =
 231       impl.AddChildToRoot<NinePatchLayerImpl>();
 232   nine_patch_layer_impl->SetBounds(layer_size);
 233   nine_patch_layer_impl->SetDrawsContent(true);
 234   nine_patch_layer_impl->SetUIResourceId(uid);
 235   nine_patch_layer_impl->SetImageBounds(gfx::Size(10, 10));
 236
 237   gfx::Rect aperture = gfx::Rect(3, 3, 4, 4);
 238   gfx::Rect border = gfx::Rect(300, 300, 400, 400);
 239   nine_patch_layer_impl->SetLayout(aperture, border, true);
 240
 241   impl.CalcDrawProps(viewport_size);
 242
 243   {
 244     SCOPED_TRACE("No occlusion");
 245     gfx::Rect occluded;
 246     impl.AppendQuadsWithOcclusion(nine_patch_layer_impl, occluded);
 247
 248     LayerTestCommon::VerifyQuadsExactlyCoverRect(impl.quad_list(),
 249                                                  gfx::Rect(layer_size));
 250     EXPECT_EQ(9u, impl.quad_list().size());
 251   }
 252
 253   {
 254     SCOPED_TRACE("Full occlusion");
 255     gfx::Rect occluded(nine_patch_layer_impl->visible_layer_rect());
 256     impl.AppendQuadsWithOcclusion(nine_patch_layer_impl, occluded);
 257
 258     LayerTestCommon::VerifyQuadsExactlyCoverRect(impl.quad_list(), gfx::Rect());
 259     EXPECT_EQ(impl.quad_list().size(), 0u);
 260   }
 261
 262   {
 263     SCOPED_TRACE("Partial occlusion");
 264     gfx::Rect occluded(0, 0, 500, 1000);
 265     impl.AppendQuadsWithOcclusion(nine_patch_layer_impl, occluded);
 266
 267     size_t partially_occluded_count = 0;
 268     LayerTestCommon::VerifyQuadsAreOccluded(
 269         impl.quad_list(), occluded, &partially_occluded_count);
 270     // The layer outputs nine quads, three of which are partially occluded, and
 271     // three fully occluded.
 272     EXPECT_EQ(6u, impl.quad_list().size());
 273     EXPECT_EQ(3u, partially_occluded_count);
 274   }
 275 }
 276
 277 TEST(NinePatchLayerImplTest, OpaqueRect) {
 278   gfx::Size layer_size(1000, 1000);
 279   gfx::Size viewport_size(1000, 1000);
 280
 281   LayerTestCommon::LayerImplTest impl;
 282
 283   SkBitmap sk_bitmap_opaque;
 284   sk_bitmap_opaque.allocN32Pixels(10, 10);
 285   sk_bitmap_opaque.setImmutable();
 286   sk_bitmap_opaque.setAlphaType(kOpaque_SkAlphaType);
 287
 288   UIResourceId uid_opaque = 6;
 289   UIResourceBitmap bitmap_opaque(sk_bitmap_opaque);
 290   impl.host_impl()->CreateUIResource(uid_opaque, bitmap_opaque);
 291
 292   SkBitmap sk_bitmap_alpha;
 293   sk_bitmap_alpha.allocN32Pixels(10, 10);
 294   sk_bitmap_alpha.setImmutable();
 295   sk_bitmap_alpha.setAlphaType(kUnpremul_SkAlphaType);
 296
 297   UIResourceId uid_alpha = 7;
 298   UIResourceBitmap bitmap_alpha(sk_bitmap_alpha);
 299
 300   impl.host_impl()->CreateUIResource(uid_alpha, bitmap_alpha);
 301
 302   NinePatchLayerImpl *nine_patch_layer_impl =
 303       impl.AddChildToRoot<NinePatchLayerImpl>();
 304   nine_patch_layer_impl->SetBounds(layer_size);
 305   nine_patch_layer_impl->SetDrawsContent(true);
 306
 307   impl.CalcDrawProps(viewport_size);
 308
 309   {
 310     SCOPED_TRACE("Use opaque image");
 311
 312     nine_patch_layer_impl->SetUIResourceId(uid_opaque);
 313     nine_patch_layer_impl->SetImageBounds(gfx::Size(10, 10));
 314
 315     gfx::Rect aperture = gfx::Rect(3, 3, 4, 4);
 316     gfx::Rect border = gfx::Rect(300, 300, 400, 400);
 317     nine_patch_layer_impl->SetLayout(aperture, border, true);
 318
 319     impl.AppendQuadsWithOcclusion(nine_patch_layer_impl, gfx::Rect());
 320
 321     const QuadList &quad_list = impl.quad_list();
 322     for (QuadList::ConstBackToFrontIterator it = quad_list.BackToFrontBegin();
 323          it != quad_list.BackToFrontEnd(); ++it)
 324       EXPECT_FALSE(it->ShouldDrawWithBlending());
 325   }
 326
 327   {
 328     SCOPED_TRACE("Use tranparent image");
 329
 330     nine_patch_layer_impl->SetUIResourceId(uid_alpha);
 331
 332     impl.AppendQuadsWithOcclusion(nine_patch_layer_impl, gfx::Rect());
 333
 334     const QuadList &quad_list = impl.quad_list();
 335     for (QuadList::ConstBackToFrontIterator it = quad_list.BackToFrontBegin();
 336          it != quad_list.BackToFrontEnd(); ++it)
 337       EXPECT_TRUE(it->ShouldDrawWithBlending());
 338   }
 339 }
 340
 341 }  // namespace
 342 }  // namespace cc