cc/output/software_renderer_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 "cc/output/software_renderer.h"
   6
   7 #include "cc/layers/quad_sink.h"
   8 #include "cc/output/compositor_frame_metadata.h"
   9 #include "cc/output/software_output_device.h"
  10 #include "cc/quads/render_pass.h"
  11 #include "cc/quads/render_pass_draw_quad.h"
  12 #include "cc/quads/solid_color_draw_quad.h"
  13 #include "cc/quads/tile_draw_quad.h"
  14 #include "cc/test/animation_test_common.h"
  15 #include "cc/test/fake_output_surface.h"
  16 #include "cc/test/fake_output_surface_client.h"
  17 #include "cc/test/geometry_test_utils.h"
  18 #include "cc/test/render_pass_test_common.h"
  19 #include "cc/test/render_pass_test_utils.h"
  20 #include "testing/gmock/include/gmock/gmock.h"
  21 #include "testing/gtest/include/gtest/gtest.h"
  22 #include "third_party/skia/include/core/SkCanvas.h"
  23 #include "third_party/skia/include/core/SkDevice.h"
  24
  25 namespace cc {
  26 namespace {
  27
  28 class SoftwareRendererTest : public testing::Test, public RendererClient {
  29  public:
  30   SoftwareRendererTest() : should_clear_root_render_pass_(true) {}
  31
  32   void InitializeRenderer(
  33       scoped_ptr<SoftwareOutputDevice> software_output_device) {
  34     output_surface_ = FakeOutputSurface::CreateSoftware(
  35         software_output_device.Pass());
  36     CHECK(output_surface_->BindToClient(&output_surface_client_));
  37
  38     resource_provider_ = ResourceProvider::Create(output_surface_.get(), 0);
  39     renderer_ = SoftwareRenderer::Create(
  40         this, output_surface_.get(), resource_provider());
  41   }
  42
  43   ResourceProvider* resource_provider() const {
  44     return resource_provider_.get();
  45   }
  46
  47   SoftwareRenderer* renderer() const { return renderer_.get(); }
  48
  49   void set_viewport(gfx::Rect viewport) {
  50     viewport_ = viewport;
  51   }
  52
  53   void set_should_clear_root_render_pass(bool clear_root_render_pass) {
  54     should_clear_root_render_pass_ = clear_root_render_pass;
  55   }
  56
  57   // RendererClient implementation.
  58   virtual gfx::Rect DeviceViewport() const OVERRIDE {
  59     return viewport_;
  60   }
  61   virtual float DeviceScaleFactor() const OVERRIDE {
  62     return 1.f;
  63   }
  64   virtual const LayerTreeSettings& Settings() const OVERRIDE {
  65     return settings_;
  66   }
  67   virtual void SetFullRootLayerDamage() OVERRIDE {}
  68   virtual bool HasImplThread() const OVERRIDE { return false; }
  69   virtual bool ShouldClearRootRenderPass() const OVERRIDE {
  70     return should_clear_root_render_pass_;
  71   }
  72   virtual CompositorFrameMetadata MakeCompositorFrameMetadata() const OVERRIDE {
  73     return CompositorFrameMetadata();
  74   }
  75   virtual bool AllowPartialSwap() const OVERRIDE {
  76     return true;
  77   }
  78   virtual bool ExternalStencilTestEnabled() const OVERRIDE { return false; }
  79
  80  protected:
  81   FakeOutputSurfaceClient output_surface_client_;
  82   scoped_ptr<FakeOutputSurface> output_surface_;
  83   scoped_ptr<ResourceProvider> resource_provider_;
  84   scoped_ptr<SoftwareRenderer> renderer_;
  85   gfx::Rect viewport_;
  86   LayerTreeSettings settings_;
  87   bool should_clear_root_render_pass_;
  88 };
  89
  90 TEST_F(SoftwareRendererTest, SolidColorQuad) {
  91   gfx::Size outer_size(100, 100);
  92   gfx::Size inner_size(98, 98);
  93   gfx::Rect outer_rect(outer_size);
  94   gfx::Rect inner_rect(gfx::Point(1, 1), inner_size);
  95   gfx::Rect visible_rect(gfx::Point(1, 2), gfx::Size(98, 97));
  96   set_viewport(gfx::Rect(outer_size));
  97
  98   InitializeRenderer(make_scoped_ptr(new SoftwareOutputDevice));
  99
 100   scoped_ptr<SharedQuadState> shared_quad_state = SharedQuadState::Create();
 101   shared_quad_state->SetAll(
 102       gfx::Transform(), outer_size, outer_rect, outer_rect, false, 1.0);
 103   RenderPass::Id root_render_pass_id = RenderPass::Id(1, 1);
 104   scoped_ptr<TestRenderPass> root_render_pass = TestRenderPass::Create();
 105   root_render_pass->SetNew(
 106       root_render_pass_id, outer_rect, outer_rect, gfx::Transform());
 107   scoped_ptr<SolidColorDrawQuad> outer_quad = SolidColorDrawQuad::Create();
 108   outer_quad->SetNew(
 109       shared_quad_state.get(), outer_rect, SK_ColorYELLOW, false);
 110   scoped_ptr<SolidColorDrawQuad> inner_quad = SolidColorDrawQuad::Create();
 111   inner_quad->SetNew(shared_quad_state.get(), inner_rect, SK_ColorCYAN, false);
 112   inner_quad->visible_rect = visible_rect;
 113   root_render_pass->AppendQuad(inner_quad.PassAs<DrawQuad>());
 114   root_render_pass->AppendQuad(outer_quad.PassAs<DrawQuad>());
 115
 116   RenderPassList list;
 117   list.push_back(root_render_pass.PassAs<RenderPass>());
 118   renderer()->DrawFrame(&list, NULL);
 119
 120   SkBitmap output;
 121   output.setConfig(SkBitmap::kARGB_8888_Config,
 122                    DeviceViewport().width(),
 123                    DeviceViewport().height());
 124   output.allocPixels();
 125   renderer()->GetFramebufferPixels(output.getPixels(), outer_rect);
 126
 127   EXPECT_EQ(SK_ColorYELLOW, output.getColor(0, 0));
 128   EXPECT_EQ(SK_ColorYELLOW,
 129             output.getColor(outer_size.width() - 1, outer_size.height() - 1));
 130   EXPECT_EQ(SK_ColorYELLOW, output.getColor(1, 1));
 131   EXPECT_EQ(SK_ColorCYAN, output.getColor(1, 2));
 132   EXPECT_EQ(SK_ColorCYAN,
 133             output.getColor(inner_size.width() - 1, inner_size.height() - 1));
 134 }
 135
 136 TEST_F(SoftwareRendererTest, TileQuad) {
 137   gfx::Size outer_size(100, 100);
 138   gfx::Size inner_size(98, 98);
 139   gfx::Rect outer_rect(outer_size);
 140   gfx::Rect inner_rect(gfx::Point(1, 1), inner_size);
 141   set_viewport(gfx::Rect(outer_size));
 142   InitializeRenderer(make_scoped_ptr(new SoftwareOutputDevice));
 143
 144   ResourceProvider::ResourceId resource_yellow =
 145       resource_provider()->CreateResource(
 146           outer_size, GL_RGBA, ResourceProvider::TextureUsageAny);
 147   ResourceProvider::ResourceId resource_cyan =
 148       resource_provider()->CreateResource(
 149           inner_size, GL_RGBA, ResourceProvider::TextureUsageAny);
 150
 151   SkBitmap yellow_tile;
 152   yellow_tile.setConfig(
 153       SkBitmap::kARGB_8888_Config, outer_size.width(), outer_size.height());
 154   yellow_tile.allocPixels();
 155   yellow_tile.eraseColor(SK_ColorYELLOW);
 156
 157   SkBitmap cyan_tile;
 158   cyan_tile.setConfig(
 159       SkBitmap::kARGB_8888_Config, inner_size.width(), inner_size.height());
 160   cyan_tile.allocPixels();
 161   cyan_tile.eraseColor(SK_ColorCYAN);
 162
 163   resource_provider()->SetPixels(
 164       resource_yellow,
 165       static_cast<uint8_t*>(yellow_tile.getPixels()),
 166       gfx::Rect(outer_size),
 167       gfx::Rect(outer_size),
 168       gfx::Vector2d());
 169   resource_provider()->SetPixels(resource_cyan,
 170                                  static_cast<uint8_t*>(cyan_tile.getPixels()),
 171                                  gfx::Rect(inner_size),
 172                                  gfx::Rect(inner_size),
 173                                  gfx::Vector2d());
 174
 175   gfx::Rect root_rect = DeviceViewport();
 176
 177   scoped_ptr<SharedQuadState> shared_quad_state = SharedQuadState::Create();
 178   shared_quad_state->SetAll(
 179       gfx::Transform(), outer_size, outer_rect, outer_rect, false, 1.0);
 180   RenderPass::Id root_render_pass_id = RenderPass::Id(1, 1);
 181   scoped_ptr<TestRenderPass> root_render_pass = TestRenderPass::Create();
 182   root_render_pass->SetNew(
 183       root_render_pass_id, root_rect, root_rect, gfx::Transform());
 184   scoped_ptr<TileDrawQuad> outer_quad = TileDrawQuad::Create();
 185   outer_quad->SetNew(shared_quad_state.get(),
 186                      outer_rect,
 187                      outer_rect,
 188                      resource_yellow,
 189                      gfx::RectF(outer_size),
 190                      outer_size,
 191                      false);
 192   scoped_ptr<TileDrawQuad> inner_quad = TileDrawQuad::Create();
 193   inner_quad->SetNew(shared_quad_state.get(),
 194                      inner_rect,
 195                      inner_rect,
 196                      resource_cyan,
 197                      gfx::RectF(inner_size),
 198                      inner_size,
 199                      false);
 200   root_render_pass->AppendQuad(inner_quad.PassAs<DrawQuad>());
 201   root_render_pass->AppendQuad(outer_quad.PassAs<DrawQuad>());
 202
 203   RenderPassList list;
 204   list.push_back(root_render_pass.PassAs<RenderPass>());
 205   renderer()->DrawFrame(&list, NULL);
 206
 207   SkBitmap output;
 208   output.setConfig(SkBitmap::kARGB_8888_Config,
 209                    DeviceViewport().width(),
 210                    DeviceViewport().height());
 211   output.allocPixels();
 212   renderer()->GetFramebufferPixels(output.getPixels(), outer_rect);
 213
 214   EXPECT_EQ(SK_ColorYELLOW, output.getColor(0, 0));
 215   EXPECT_EQ(SK_ColorYELLOW,
 216             output.getColor(outer_size.width() - 1, outer_size.height() - 1));
 217   EXPECT_EQ(SK_ColorCYAN, output.getColor(1, 1));
 218   EXPECT_EQ(SK_ColorCYAN,
 219             output.getColor(inner_size.width() - 1, inner_size.height() - 1));
 220 }
 221
 222 TEST_F(SoftwareRendererTest, TileQuadVisibleRect) {
 223   gfx::Size tile_size(100, 100);
 224   gfx::Rect tile_rect(tile_size);
 225   gfx::Rect visible_rect = tile_rect;
 226   visible_rect.Inset(1, 2, 3, 4);
 227   set_viewport(gfx::Rect(tile_size));
 228   InitializeRenderer(make_scoped_ptr(new SoftwareOutputDevice));
 229
 230   ResourceProvider::ResourceId resource_cyan =
 231       resource_provider()->CreateResource(
 232           tile_size, GL_RGBA, ResourceProvider::TextureUsageAny);
 233
 234   SkBitmap cyan_tile;  // The lowest five rows are yellow.
 235   cyan_tile.setConfig(
 236       SkBitmap::kARGB_8888_Config, tile_size.width(), tile_size.height());
 237   cyan_tile.allocPixels();
 238   cyan_tile.eraseColor(SK_ColorCYAN);
 239   cyan_tile.eraseArea(
 240       SkIRect::MakeLTRB(
 241           0, visible_rect.bottom() - 1, tile_rect.width(), tile_rect.bottom()),
 242       SK_ColorYELLOW);
 243
 244   resource_provider()->SetPixels(resource_cyan,
 245                                  static_cast<uint8_t*>(cyan_tile.getPixels()),
 246                                  gfx::Rect(tile_size),
 247                                  gfx::Rect(tile_size),
 248                                  gfx::Vector2d());
 249
 250   gfx::Rect root_rect = DeviceViewport();
 251
 252   scoped_ptr<SharedQuadState> shared_quad_state = SharedQuadState::Create();
 253   shared_quad_state->SetAll(
 254       gfx::Transform(), tile_size, tile_rect, tile_rect, false, 1.0);
 255   RenderPass::Id root_render_pass_id = RenderPass::Id(1, 1);
 256   scoped_ptr<TestRenderPass> root_render_pass = TestRenderPass::Create();
 257   root_render_pass->SetNew(
 258       root_render_pass_id, root_rect, root_rect, gfx::Transform());
 259   scoped_ptr<TileDrawQuad> quad = TileDrawQuad::Create();
 260   quad->SetNew(shared_quad_state.get(),
 261                tile_rect,
 262                tile_rect,
 263                resource_cyan,
 264                gfx::RectF(tile_size),
 265                tile_size,
 266                false);
 267   quad->visible_rect = visible_rect;
 268   root_render_pass->AppendQuad(quad.PassAs<DrawQuad>());
 269
 270   RenderPassList list;
 271   list.push_back(root_render_pass.PassAs<RenderPass>());
 272   renderer()->DrawFrame(&list, NULL);
 273
 274   SkBitmap output;
 275   output.setConfig(SkBitmap::kARGB_8888_Config,
 276                    DeviceViewport().width(),
 277                    DeviceViewport().height());
 278   output.allocPixels();
 279   renderer()->GetFramebufferPixels(output.getPixels(), tile_rect);
 280
 281   // Check portion of tile not in visible rect isn't drawn.
 282   const unsigned int kTransparent = SK_ColorTRANSPARENT;
 283   EXPECT_EQ(kTransparent, output.getColor(0, 0));
 284   EXPECT_EQ(kTransparent,
 285             output.getColor(tile_rect.width() - 1, tile_rect.height() - 1));
 286   EXPECT_EQ(kTransparent,
 287             output.getColor(visible_rect.x() - 1, visible_rect.y() - 1));
 288   EXPECT_EQ(kTransparent,
 289             output.getColor(visible_rect.right(), visible_rect.bottom()));
 290   // Ensure visible part is drawn correctly.
 291   EXPECT_EQ(SK_ColorCYAN, output.getColor(visible_rect.x(), visible_rect.y()));
 292   EXPECT_EQ(
 293       SK_ColorCYAN,
 294       output.getColor(visible_rect.right() - 2, visible_rect.bottom() - 2));
 295   // Ensure last visible line is correct.
 296   EXPECT_EQ(
 297       SK_ColorYELLOW,
 298       output.getColor(visible_rect.right() - 1, visible_rect.bottom() - 1));
 299 }
 300
 301 TEST_F(SoftwareRendererTest, ShouldClearRootRenderPass) {
 302   gfx::Rect viewport_rect(0, 0, 100, 100);
 303   set_viewport(viewport_rect);
 304   set_should_clear_root_render_pass(false);
 305   InitializeRenderer(make_scoped_ptr(new SoftwareOutputDevice));
 306
 307   RenderPassList list;
 308
 309   SkBitmap output;
 310   output.setConfig(SkBitmap::kARGB_8888_Config,
 311                    viewport_rect.width(),
 312                    viewport_rect.height());
 313   output.allocPixels();
 314
 315   // Draw a fullscreen green quad in a first frame.
 316   RenderPass::Id root_clear_pass_id(1, 0);
 317   TestRenderPass* root_clear_pass = AddRenderPass(
 318       &list, root_clear_pass_id, viewport_rect, gfx::Transform());
 319   AddQuad(root_clear_pass, viewport_rect, SK_ColorGREEN);
 320
 321   renderer()->DecideRenderPassAllocationsForFrame(list);
 322   renderer()->DrawFrame(&list, NULL);
 323   renderer()->GetFramebufferPixels(output.getPixels(), viewport_rect);
 324
 325   EXPECT_EQ(SK_ColorGREEN, output.getColor(0, 0));
 326   EXPECT_EQ(SK_ColorGREEN,
 327       output.getColor(viewport_rect.width() - 1, viewport_rect.height() - 1));
 328
 329   list.clear();
 330
 331   // Draw a smaller magenta rect without filling the viewport in a separate
 332   // frame.
 333   gfx::Rect smaller_rect(20, 20, 60, 60);
 334
 335   RenderPass::Id root_smaller_pass_id(2, 0);
 336   TestRenderPass* root_smaller_pass = AddRenderPass(
 337       &list, root_smaller_pass_id, viewport_rect, gfx::Transform());
 338   AddQuad(root_smaller_pass, smaller_rect, SK_ColorMAGENTA);
 339
 340   renderer()->DecideRenderPassAllocationsForFrame(list);
 341   renderer()->DrawFrame(&list, NULL);
 342   renderer()->GetFramebufferPixels(output.getPixels(), viewport_rect);
 343
 344   // If we didn't clear, the borders should still be green.
 345   EXPECT_EQ(SK_ColorGREEN, output.getColor(0, 0));
 346   EXPECT_EQ(SK_ColorGREEN,
 347       output.getColor(viewport_rect.width() - 1, viewport_rect.height() - 1));
 348
 349   EXPECT_EQ(SK_ColorMAGENTA,
 350             output.getColor(smaller_rect.x(), smaller_rect.y()));
 351   EXPECT_EQ(SK_ColorMAGENTA,
 352       output.getColor(smaller_rect.right() - 1, smaller_rect.bottom() - 1));
 353 }
 354
 355 TEST_F(SoftwareRendererTest, RenderPassVisibleRect) {
 356   gfx::Rect viewport_rect(0, 0, 100, 100);
 357   set_viewport(viewport_rect);
 358   InitializeRenderer(make_scoped_ptr(new SoftwareOutputDevice));
 359
 360   RenderPassList list;
 361
 362   SkBitmap output;
 363   output.setConfig(SkBitmap::kARGB_8888_Config,
 364                    viewport_rect.width(),
 365                    viewport_rect.height());
 366   output.allocPixels();
 367
 368   // Pass drawn as inner quad is magenta.
 369   gfx::Rect smaller_rect(20, 20, 60, 60);
 370   RenderPass::Id smaller_pass_id(2, 1);
 371   TestRenderPass* smaller_pass =
 372       AddRenderPass(&list, smaller_pass_id, smaller_rect, gfx::Transform());
 373   AddQuad(smaller_pass, smaller_rect, SK_ColorMAGENTA);
 374
 375   // Root pass is green.
 376   RenderPass::Id root_clear_pass_id(1, 0);
 377   TestRenderPass* root_clear_pass =
 378       AddRenderPass(&list, root_clear_pass_id, viewport_rect, gfx::Transform());
 379   AddRenderPassQuad(root_clear_pass, smaller_pass);
 380   AddQuad(root_clear_pass, viewport_rect, SK_ColorGREEN);
 381
 382   // Interior pass quad has smaller visible rect.
 383   gfx::Rect interior_visible_rect(30, 30, 40, 40);
 384   root_clear_pass->quad_list[0]->visible_rect = interior_visible_rect;
 385
 386   renderer()->DecideRenderPassAllocationsForFrame(list);
 387   renderer()->DrawFrame(&list, NULL);
 388   renderer()->GetFramebufferPixels(output.getPixels(), viewport_rect);
 389
 390   EXPECT_EQ(SK_ColorGREEN, output.getColor(0, 0));
 391   EXPECT_EQ(
 392       SK_ColorGREEN,
 393       output.getColor(viewport_rect.width() - 1, viewport_rect.height() - 1));
 394
 395   // Part outside visible rect should remain green.
 396   EXPECT_EQ(SK_ColorGREEN, output.getColor(smaller_rect.x(), smaller_rect.y()));
 397   EXPECT_EQ(
 398       SK_ColorGREEN,
 399       output.getColor(smaller_rect.right() - 1, smaller_rect.bottom() - 1));
 400
 401   EXPECT_EQ(
 402       SK_ColorMAGENTA,
 403       output.getColor(interior_visible_rect.x(), interior_visible_rect.y()));
 404   EXPECT_EQ(SK_ColorMAGENTA,
 405             output.getColor(interior_visible_rect.right() - 1,
 406                             interior_visible_rect.bottom() - 1));
 407 }
 408
 409 }  // namespace
 410 }  // namespace cc