cc/test/layer_tree_pixel_test.cc

   1 // Copyright 2013 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/test/layer_tree_pixel_test.h"
   6
   7 #include "base/command_line.h"
   8 #include "base/path_service.h"
   9 #include "cc/base/switches.h"
  10 #include "cc/layers/solid_color_layer.h"
  11 #include "cc/layers/texture_layer.h"
  12 #include "cc/output/copy_output_request.h"
  13 #include "cc/output/copy_output_result.h"
  14 #include "cc/resources/texture_mailbox.h"
  15 #include "cc/test/paths.h"
  16 #include "cc/test/pixel_comparator.h"
  17 #include "cc/test/pixel_test_output_surface.h"
  18 #include "cc/test/pixel_test_software_output_device.h"
  19 #include "cc/test/pixel_test_utils.h"
  20 #include "cc/test/test_in_process_context_provider.h"
  21 #include "cc/trees/layer_tree_impl.h"
  22 #include "gpu/command_buffer/client/gl_in_process_context.h"
  23 #include "gpu/command_buffer/client/gles2_implementation.h"
  24
  25 using gpu::gles2::GLES2Interface;
  26
  27 namespace cc {
  28
  29 LayerTreePixelTest::LayerTreePixelTest()
  30     : pixel_comparator_(new ExactPixelComparator(true)),
  31       test_type_(GL_WITH_DEFAULT),
  32       pending_texture_mailbox_callbacks_(0),
  33       impl_side_painting_(true) {}
  34
  35 LayerTreePixelTest::~LayerTreePixelTest() {}
  36
  37 scoped_ptr<OutputSurface> LayerTreePixelTest::CreateOutputSurface(
  38     bool fallback) {
  39   gfx::Size surface_expansion_size(40, 60);
  40   scoped_ptr<PixelTestOutputSurface> output_surface;
  41
  42   switch (test_type_) {
  43     case SOFTWARE_WITH_DEFAULT:
  44     case SOFTWARE_WITH_BITMAP: {
  45       scoped_ptr<PixelTestSoftwareOutputDevice> software_output_device(
  46           new PixelTestSoftwareOutputDevice);
  47       software_output_device->set_surface_expansion_size(
  48           surface_expansion_size);
  49       output_surface = make_scoped_ptr(
  50           new PixelTestOutputSurface(
  51               software_output_device.PassAs<SoftwareOutputDevice>()));
  52       break;
  53     }
  54
  55     case GL_WITH_DEFAULT:
  56     case GL_WITH_BITMAP: {
  57       output_surface = make_scoped_ptr(
  58           new PixelTestOutputSurface(new TestInProcessContextProvider));
  59       break;
  60     }
  61   }
  62
  63   output_surface->set_surface_expansion_size(surface_expansion_size);
  64   return output_surface.PassAs<OutputSurface>();
  65 }
  66
  67 void LayerTreePixelTest::CommitCompleteOnThread(LayerTreeHostImpl* impl) {
  68   LayerTreeImpl* commit_tree =
  69       impl->pending_tree() ? impl->pending_tree() : impl->active_tree();
  70   if (commit_tree->source_frame_number() != 0)
  71     return;
  72
  73   gfx::Rect viewport = impl->DeviceViewport();
  74   // The viewport has a 0,0 origin without external influence.
  75   EXPECT_EQ(gfx::Point().ToString(), viewport.origin().ToString());
  76   // Be that influence!
  77   viewport += gfx::Vector2d(20, 10);
  78   impl->SetExternalDrawConstraints(gfx::Transform(), viewport, viewport, true);
  79   EXPECT_EQ(viewport.ToString(), impl->DeviceViewport().ToString());
  80 }
  81
  82 scoped_ptr<CopyOutputRequest> LayerTreePixelTest::CreateCopyOutputRequest() {
  83   return CopyOutputRequest::CreateBitmapRequest(
  84       base::Bind(&LayerTreePixelTest::ReadbackResult, base::Unretained(this)));
  85 }
  86
  87 void LayerTreePixelTest::ReadbackResult(scoped_ptr<CopyOutputResult> result) {
  88   ASSERT_TRUE(result->HasBitmap());
  89   result_bitmap_ = result->TakeBitmap().Pass();
  90   EndTest();
  91 }
  92
  93 void LayerTreePixelTest::BeginTest() {
  94   Layer* target = readback_target_ ? readback_target_
  95                                    : layer_tree_host()->root_layer();
  96   target->RequestCopyOfOutput(CreateCopyOutputRequest().Pass());
  97   PostSetNeedsCommitToMainThread();
  98 }
  99
 100 void LayerTreePixelTest::AfterTest() {
 101   base::FilePath test_data_dir;
 102   EXPECT_TRUE(PathService::Get(CCPaths::DIR_TEST_DATA, &test_data_dir));
 103   base::FilePath ref_file_path = test_data_dir.Append(ref_file_);
 104
 105   CommandLine* cmd = CommandLine::ForCurrentProcess();
 106   if (cmd->HasSwitch(switches::kCCRebaselinePixeltests))
 107     EXPECT_TRUE(WritePNGFile(*result_bitmap_, ref_file_path, true));
 108   EXPECT_TRUE(MatchesPNGFile(*result_bitmap_,
 109                              ref_file_path,
 110                              *pixel_comparator_));
 111 }
 112
 113 scoped_refptr<SolidColorLayer> LayerTreePixelTest::CreateSolidColorLayer(
 114     const gfx::Rect& rect, SkColor color) {
 115   scoped_refptr<SolidColorLayer> layer = SolidColorLayer::Create();
 116   layer->SetIsDrawable(true);
 117   layer->SetBounds(rect.size());
 118   layer->SetPosition(rect.origin());
 119   layer->SetBackgroundColor(color);
 120   return layer;
 121 }
 122
 123 void LayerTreePixelTest::EndTest() {
 124   // Drop TextureMailboxes on the main thread so that they can be cleaned up and
 125   // the pending callbacks will fire.
 126   for (size_t i = 0; i < texture_layers_.size(); ++i) {
 127     texture_layers_[i]->SetTextureMailbox(TextureMailbox(),
 128                                           scoped_ptr<SingleReleaseCallback>());
 129   }
 130
 131   TryEndTest();
 132 }
 133
 134 void LayerTreePixelTest::TryEndTest() {
 135   if (!result_bitmap_)
 136     return;
 137   if (pending_texture_mailbox_callbacks_)
 138     return;
 139   LayerTreeTest::EndTest();
 140 }
 141
 142 scoped_refptr<SolidColorLayer> LayerTreePixelTest::
 143     CreateSolidColorLayerWithBorder(
 144         const gfx::Rect& rect, SkColor color,
 145         int border_width, SkColor border_color) {
 146   scoped_refptr<SolidColorLayer> layer = CreateSolidColorLayer(rect, color);
 147   scoped_refptr<SolidColorLayer> border_top = CreateSolidColorLayer(
 148       gfx::Rect(0, 0, rect.width(), border_width), border_color);
 149   scoped_refptr<SolidColorLayer> border_left = CreateSolidColorLayer(
 150       gfx::Rect(0,
 151                 border_width,
 152                 border_width,
 153                 rect.height() - border_width * 2),
 154       border_color);
 155   scoped_refptr<SolidColorLayer> border_right =
 156       CreateSolidColorLayer(gfx::Rect(rect.width() - border_width,
 157                                       border_width,
 158                                       border_width,
 159                                       rect.height() - border_width * 2),
 160                             border_color);
 161   scoped_refptr<SolidColorLayer> border_bottom = CreateSolidColorLayer(
 162       gfx::Rect(0, rect.height() - border_width, rect.width(), border_width),
 163       border_color);
 164   layer->AddChild(border_top);
 165   layer->AddChild(border_left);
 166   layer->AddChild(border_right);
 167   layer->AddChild(border_bottom);
 168   return layer;
 169 }
 170
 171 scoped_refptr<TextureLayer> LayerTreePixelTest::CreateTextureLayer(
 172     const gfx::Rect& rect, const SkBitmap& bitmap) {
 173   scoped_refptr<TextureLayer> layer = TextureLayer::CreateForMailbox(NULL);
 174   layer->SetIsDrawable(true);
 175   layer->SetBounds(rect.size());
 176   layer->SetPosition(rect.origin());
 177
 178   TextureMailbox texture_mailbox;
 179   scoped_ptr<SingleReleaseCallback> release_callback;
 180   CopyBitmapToTextureMailboxAsTexture(
 181       bitmap, &texture_mailbox, &release_callback);
 182   layer->SetTextureMailbox(texture_mailbox, release_callback.Pass());
 183
 184   texture_layers_.push_back(layer);
 185   pending_texture_mailbox_callbacks_++;
 186   return layer;
 187 }
 188
 189 void LayerTreePixelTest::RunPixelTest(
 190     PixelTestType test_type,
 191     scoped_refptr<Layer> content_root,
 192     base::FilePath file_name) {
 193   test_type_ = test_type;
 194   content_root_ = content_root;
 195   readback_target_ = NULL;
 196   ref_file_ = file_name;
 197   RunTest(true, false, impl_side_painting_);
 198 }
 199
 200 void LayerTreePixelTest::RunPixelTestWithReadbackTarget(
 201     PixelTestType test_type,
 202     scoped_refptr<Layer> content_root,
 203     Layer* target,
 204     base::FilePath file_name) {
 205   test_type_ = test_type;
 206   content_root_ = content_root;
 207   readback_target_ = target;
 208   ref_file_ = file_name;
 209   RunTest(true, false, impl_side_painting_);
 210 }
 211
 212 void LayerTreePixelTest::SetupTree() {
 213   scoped_refptr<Layer> root = Layer::Create();
 214   root->SetBounds(content_root_->bounds());
 215   root->AddChild(content_root_);
 216   layer_tree_host()->SetRootLayer(root);
 217   LayerTreeTest::SetupTree();
 218 }
 219
 220 scoped_ptr<SkBitmap> LayerTreePixelTest::CopyTextureMailboxToBitmap(
 221     const gfx::Size& size,
 222     const TextureMailbox& texture_mailbox) {
 223   DCHECK(texture_mailbox.IsTexture());
 224   if (!texture_mailbox.IsTexture())
 225     return scoped_ptr<SkBitmap>();
 226
 227   scoped_ptr<gpu::GLInProcessContext> context = CreateTestInProcessContext();
 228   GLES2Interface* gl = context->GetImplementation();
 229
 230   if (texture_mailbox.sync_point())
 231     gl->WaitSyncPointCHROMIUM(texture_mailbox.sync_point());
 232
 233   GLuint texture_id = 0;
 234   gl->GenTextures(1, &texture_id);
 235   gl->BindTexture(GL_TEXTURE_2D, texture_id);
 236   gl->TexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
 237   gl->TexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
 238   gl->TexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
 239   gl->TexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
 240   gl->ConsumeTextureCHROMIUM(texture_mailbox.target(), texture_mailbox.name());
 241   gl->BindTexture(GL_TEXTURE_2D, 0);
 242
 243   GLuint fbo = 0;
 244   gl->GenFramebuffers(1, &fbo);
 245   gl->BindFramebuffer(GL_FRAMEBUFFER, fbo);
 246   gl->FramebufferTexture2D(
 247       GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_2D, texture_id, 0);
 248   EXPECT_EQ(static_cast<unsigned>(GL_FRAMEBUFFER_COMPLETE),
 249             gl->CheckFramebufferStatus(GL_FRAMEBUFFER));
 250
 251   scoped_ptr<uint8[]> pixels(new uint8[size.GetArea() * 4]);
 252   gl->ReadPixels(0,
 253                  0,
 254                  size.width(),
 255                  size.height(),
 256                  GL_RGBA,
 257                  GL_UNSIGNED_BYTE,
 258                  pixels.get());
 259
 260   gl->DeleteFramebuffers(1, &fbo);
 261   gl->DeleteTextures(1, &texture_id);
 262
 263   scoped_ptr<SkBitmap> bitmap(new SkBitmap);
 264   bitmap->allocN32Pixels(size.width(), size.height());
 265
 266   uint8* out_pixels = static_cast<uint8*>(bitmap->getPixels());
 267
 268   size_t row_bytes = size.width() * 4;
 269   size_t total_bytes = size.height() * row_bytes;
 270   for (size_t dest_y = 0; dest_y < total_bytes; dest_y += row_bytes) {
 271     // Flip Y axis.
 272     size_t src_y = total_bytes - dest_y - row_bytes;
 273     // Swizzle OpenGL -> Skia byte order.
 274     for (size_t x = 0; x < row_bytes; x += 4) {
 275       out_pixels[dest_y + x + SK_R32_SHIFT/8] = pixels.get()[src_y + x + 0];
 276       out_pixels[dest_y + x + SK_G32_SHIFT/8] = pixels.get()[src_y + x + 1];
 277       out_pixels[dest_y + x + SK_B32_SHIFT/8] = pixels.get()[src_y + x + 2];
 278       out_pixels[dest_y + x + SK_A32_SHIFT/8] = pixels.get()[src_y + x + 3];
 279     }
 280   }
 281
 282   return bitmap.Pass();
 283 }
 284
 285 void LayerTreePixelTest::ReleaseTextureMailbox(
 286     scoped_ptr<gpu::GLInProcessContext> context,
 287     uint32 texture,
 288     uint32 sync_point,
 289     bool lost_resource) {
 290   GLES2Interface* gl = context->GetImplementation();
 291   if (sync_point)
 292     gl->WaitSyncPointCHROMIUM(sync_point);
 293   gl->DeleteTextures(1, &texture);
 294   pending_texture_mailbox_callbacks_--;
 295   TryEndTest();
 296 }
 297
 298 void LayerTreePixelTest::CopyBitmapToTextureMailboxAsTexture(
 299     const SkBitmap& bitmap,
 300     TextureMailbox* texture_mailbox,
 301     scoped_ptr<SingleReleaseCallback>* release_callback) {
 302   DCHECK_GT(bitmap.width(), 0);
 303   DCHECK_GT(bitmap.height(), 0);
 304
 305   scoped_ptr<gpu::GLInProcessContext> context = CreateTestInProcessContext();
 306   GLES2Interface* gl = context->GetImplementation();
 307
 308   GLuint texture_id = 0;
 309   gl->GenTextures(1, &texture_id);
 310   gl->BindTexture(GL_TEXTURE_2D, texture_id);
 311   gl->TexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
 312   gl->TexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
 313   gl->TexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
 314   gl->TexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
 315
 316   DCHECK_EQ(kPMColor_SkColorType, bitmap.colorType());
 317
 318   {
 319     SkAutoLockPixels lock(bitmap);
 320
 321     size_t row_bytes = bitmap.width() * 4;
 322     size_t total_bytes = bitmap.height() * row_bytes;
 323
 324     scoped_ptr<uint8[]> gl_pixels(new uint8[total_bytes]);
 325     uint8* bitmap_pixels = static_cast<uint8*>(bitmap.getPixels());
 326
 327     for (size_t y = 0; y < total_bytes; y += row_bytes) {
 328       // Flip Y axis.
 329       size_t src_y = total_bytes - y - row_bytes;
 330       // Swizzle Skia -> OpenGL byte order.
 331       for (size_t x = 0; x < row_bytes; x += 4) {
 332         gl_pixels.get()[y + x + 0] = bitmap_pixels[src_y + x + SK_R32_SHIFT/8];
 333         gl_pixels.get()[y + x + 1] = bitmap_pixels[src_y + x + SK_G32_SHIFT/8];
 334         gl_pixels.get()[y + x + 2] = bitmap_pixels[src_y + x + SK_B32_SHIFT/8];
 335         gl_pixels.get()[y + x + 3] = bitmap_pixels[src_y + x + SK_A32_SHIFT/8];
 336       }
 337     }
 338
 339     gl->TexImage2D(GL_TEXTURE_2D,
 340                    0,
 341                    GL_RGBA,
 342                    bitmap.width(),
 343                    bitmap.height(),
 344                    0,
 345                    GL_RGBA,
 346                    GL_UNSIGNED_BYTE,
 347                    gl_pixels.get());
 348   }
 349
 350   gpu::Mailbox mailbox;
 351   gl->GenMailboxCHROMIUM(mailbox.name);
 352   gl->ProduceTextureCHROMIUM(GL_TEXTURE_2D, mailbox.name);
 353   gl->BindTexture(GL_TEXTURE_2D, 0);
 354   uint32 sync_point = gl->InsertSyncPointCHROMIUM();
 355
 356   *texture_mailbox = TextureMailbox(mailbox, GL_TEXTURE_2D, sync_point);
 357   *release_callback = SingleReleaseCallback::Create(
 358       base::Bind(&LayerTreePixelTest::ReleaseTextureMailbox,
 359                  base::Unretained(this),
 360                  base::Passed(&context),
 361                  texture_id));
 362 }
 363
 364 }  // namespace cc