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_ui_resource_layer_tree_host_impl.h"
13#include "cc/test/geometry_test_utils.h"
14#include "cc/test/layer_test_common.h"
15#include "cc/trees/single_thread_proxy.h"
16#include "testing/gmock/include/gmock/gmock.h"
17#include "testing/gtest/include/gtest/gtest.h"
18#include "ui/gfx/rect_conversions.h"
19#include "ui/gfx/safe_integer_conversions.h"
20#include "ui/gfx/transform.h"
21
22namespace cc {
23namespace {
24
25gfx::Rect ToRoundedIntRect(const gfx::RectF& rect_f) {
26  return gfx::Rect(gfx::ToRoundedInt(rect_f.x()),
27                   gfx::ToRoundedInt(rect_f.y()),
28                   gfx::ToRoundedInt(rect_f.width()),
29                   gfx::ToRoundedInt(rect_f.height()));
30}
31
32void NinePatchLayerLayoutTest(const gfx::Size& bitmap_size,
33                              const gfx::Rect& aperture_rect,
34                              const gfx::Size& layer_size,
35                              const gfx::Rect& border,
36                              bool fill_center,
37                              size_t expected_quad_size) {
38  MockOcclusionTracker<LayerImpl> occlusion_tracker;
39  scoped_ptr<RenderPass> render_pass = RenderPass::Create();
40  gfx::Rect visible_content_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  FakeUIResourceLayerTreeHostImpl host_impl(&proxy, &shared_bitmap_manager);
49  scoped_ptr<NinePatchLayerImpl> layer =
50      NinePatchLayerImpl::Create(host_impl.active_tree(), 1);
51  layer->draw_properties().visible_content_rect = visible_content_rect;
52  layer->SetBounds(layer_size);
53  layer->SetContentBounds(layer_size);
54  layer->CreateRenderSurface();
55  layer->draw_properties().render_target = layer.get();
56
57  UIResourceId uid = 1;
58  bool is_opaque = false;
59  UIResourceBitmap bitmap(bitmap_size, is_opaque);
60
61  host_impl.CreateUIResource(uid, bitmap);
62  layer->SetUIResourceId(uid);
63  layer->SetImageBounds(bitmap_size);
64  layer->SetLayout(aperture_rect, border, fill_center);
65  AppendQuadsData data;
66  layer->AppendQuads(render_pass.get(), occlusion_tracker, &data);
67
68  // Verify quad rects
69  const QuadList& quads = render_pass->quad_list;
70  EXPECT_EQ(expected_quad_size, quads.size());
71
72  Region remaining(visible_content_rect);
73  size_t i = 0;
74  for (QuadList::ConstIterator iter = quads.begin(); iter != quads.end();
75       ++iter) {
76    gfx::Rect quad_rect = iter->rect;
77
78    EXPECT_TRUE(visible_content_rect.Contains(quad_rect)) << i;
79    EXPECT_TRUE(remaining.Contains(quad_rect)) << i;
80    remaining.Subtract(Region(quad_rect));
81    ++i;
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_RECT_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 (QuadList::ConstIterator iter = quads.begin(); iter != quads.end();
96       ++iter) {
97    const TextureDrawQuad* tex_quad = TextureDrawQuad::MaterialCast(&*iter);
98    gfx::RectF tex_rect =
99        gfx::BoundingRect(tex_quad->uv_top_left, tex_quad->uv_bottom_right);
100    tex_rect.Scale(bitmap_size.width(), bitmap_size.height());
101    tex_remaining.Subtract(Region(ToRoundedIntRect(tex_rect)));
102  }
103
104  if (!fill_center) {
105    EXPECT_RECT_EQ(aperture_rect, tex_remaining.bounds());
106    Region aperture_region(aperture_rect);
107    EXPECT_EQ(aperture_region, tex_remaining);
108  } else {
109    EXPECT_TRUE(remaining.bounds().IsEmpty());
110  }
111}
112
113TEST(NinePatchLayerImplTest, VerifyDrawQuads) {
114  // Input is a 100x100 bitmap with a 40x50 aperture at x=20, y=30.
115  // The bounds of the layer are set to 400x400.
116  gfx::Size bitmap_size(100, 100);
117  gfx::Size layer_size(400, 500);
118  gfx::Rect aperture_rect(20, 30, 40, 50);
119  gfx::Rect border(40, 40, 80, 80);
120  bool fill_center = false;
121  size_t expected_quad_size = 8;
122  NinePatchLayerLayoutTest(bitmap_size,
123                           aperture_rect,
124                           layer_size,
125                           border,
126                           fill_center,
127                           expected_quad_size);
128
129  // The bounds of the layer are set to less than the bitmap size.
130  bitmap_size = gfx::Size(100, 100);
131  layer_size = gfx::Size(40, 50);
132  aperture_rect = gfx::Rect(20, 30, 40, 50);
133  border = gfx::Rect(10, 10, 25, 15);
134  fill_center = true;
135  expected_quad_size = 9;
136  NinePatchLayerLayoutTest(bitmap_size,
137                           aperture_rect,
138                           layer_size,
139                           border,
140                           fill_center,
141                           expected_quad_size);
142
143  // Layer and image sizes are equal.
144  bitmap_size = gfx::Size(100, 100);
145  layer_size = gfx::Size(100, 100);
146  aperture_rect = gfx::Rect(20, 30, 40, 50);
147  border = gfx::Rect(20, 30, 40, 50);
148  fill_center = true;
149  expected_quad_size = 9;
150  NinePatchLayerLayoutTest(bitmap_size,
151                           aperture_rect,
152                           layer_size,
153                           border,
154                           fill_center,
155                           expected_quad_size);
156}
157
158TEST(NinePatchLayerImplTest, VerifyDrawQuadsWithEmptyPatches) {
159  // The top component of the 9-patch is empty, so there should be no quads for
160  // the top three components.
161  gfx::Size bitmap_size(100, 100);
162  gfx::Size layer_size(100, 100);
163  gfx::Rect aperture_rect(10, 0, 80, 90);
164  gfx::Rect border(10, 0, 20, 10);
165  bool fill_center = false;
166  size_t expected_quad_size = 5;
167  NinePatchLayerLayoutTest(bitmap_size,
168                           aperture_rect,
169                           layer_size,
170                           border,
171                           fill_center,
172                           expected_quad_size);
173
174  // The top and left components of the 9-patch are empty, so there should be no
175  // quads for the left and top components.
176  bitmap_size = gfx::Size(100, 100);
177  layer_size = gfx::Size(100, 100);
178  aperture_rect = gfx::Rect(0, 0, 90, 90);
179  border = gfx::Rect(0, 0, 10, 10);
180  fill_center = false;
181  expected_quad_size = 3;
182  NinePatchLayerLayoutTest(bitmap_size,
183                           aperture_rect,
184                           layer_size,
185                           border,
186                           fill_center,
187                           expected_quad_size);
188
189  // The aperture is the size of the bitmap and the center doesn't draw.
190  bitmap_size = gfx::Size(100, 100);
191  layer_size = gfx::Size(100, 100);
192  aperture_rect = gfx::Rect(0, 0, 100, 100);
193  border = gfx::Rect(0, 0, 0, 0);
194  fill_center = false;
195  expected_quad_size = 0;
196  NinePatchLayerLayoutTest(bitmap_size,
197                           aperture_rect,
198                           layer_size,
199                           border,
200                           fill_center,
201                           expected_quad_size);
202
203  // The aperture is the size of the bitmap and the center does draw.
204  bitmap_size = gfx::Size(100, 100);
205  layer_size = gfx::Size(100, 100);
206  aperture_rect = gfx::Rect(0, 0, 100, 100);
207  border = gfx::Rect(0, 0, 0, 0);
208  fill_center = true;
209  expected_quad_size = 1;
210  NinePatchLayerLayoutTest(bitmap_size,
211                           aperture_rect,
212                           layer_size,
213                           border,
214                           fill_center,
215                           expected_quad_size);
216}
217
218TEST(NinePatchLayerImplTest, Occlusion) {
219  gfx::Size layer_size(1000, 1000);
220  gfx::Size viewport_size(1000, 1000);
221
222  LayerTestCommon::LayerImplTest impl;
223
224  SkBitmap sk_bitmap;
225  sk_bitmap.allocN32Pixels(10, 10);
226  sk_bitmap.setImmutable();
227  UIResourceId uid = 5;
228  UIResourceBitmap bitmap(sk_bitmap);
229  impl.host_impl()->CreateUIResource(uid, bitmap);
230
231  NinePatchLayerImpl* nine_patch_layer_impl =
232      impl.AddChildToRoot<NinePatchLayerImpl>();
233  nine_patch_layer_impl->SetBounds(layer_size);
234  nine_patch_layer_impl->SetContentBounds(layer_size);
235  nine_patch_layer_impl->SetDrawsContent(true);
236  nine_patch_layer_impl->SetUIResourceId(uid);
237  nine_patch_layer_impl->SetImageBounds(gfx::Size(10, 10));
238
239  gfx::Rect aperture = gfx::Rect(3, 3, 4, 4);
240  gfx::Rect border = gfx::Rect(300, 300, 400, 400);
241  nine_patch_layer_impl->SetLayout(aperture, border, true);
242
243  impl.CalcDrawProps(viewport_size);
244
245  {
246    SCOPED_TRACE("No occlusion");
247    gfx::Rect occluded;
248    impl.AppendQuadsWithOcclusion(nine_patch_layer_impl, occluded);
249
250    LayerTestCommon::VerifyQuadsExactlyCoverRect(impl.quad_list(),
251                                                 gfx::Rect(layer_size));
252    EXPECT_EQ(9u, impl.quad_list().size());
253  }
254
255  {
256    SCOPED_TRACE("Full occlusion");
257    gfx::Rect occluded(nine_patch_layer_impl->visible_content_rect());
258    impl.AppendQuadsWithOcclusion(nine_patch_layer_impl, occluded);
259
260    LayerTestCommon::VerifyQuadsExactlyCoverRect(impl.quad_list(), gfx::Rect());
261    EXPECT_EQ(impl.quad_list().size(), 0u);
262  }
263
264  {
265    SCOPED_TRACE("Partial occlusion");
266    gfx::Rect occluded(0, 0, 500, 1000);
267    impl.AppendQuadsWithOcclusion(nine_patch_layer_impl, occluded);
268
269    size_t partially_occluded_count = 0;
270    LayerTestCommon::VerifyQuadsAreOccluded(
271        impl.quad_list(), occluded, &partially_occluded_count);
272    // The layer outputs nine quads, three of which are partially occluded, and
273    // three fully occluded.
274    EXPECT_EQ(6u, impl.quad_list().size());
275    EXPECT_EQ(3u, partially_occluded_count);
276  }
277}
278
279}  // namespace
280}  // namespace cc
281