src/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_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
  22 namespace cc {
  23 namespace {
  24
  25 gfx::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
  32 void 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
 113 TEST(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
 158 TEST(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
 218 TEST(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