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/layers/heads_up_display_layer_impl.h" 6 7 #include <algorithm> 8 #include <vector> 9 10 #include "base/debug/trace_event.h" 11 #include "base/debug/trace_event_argument.h" 12 #include "base/strings/stringprintf.h" 13 #include "cc/debug/debug_colors.h" 14 #include "cc/debug/frame_rate_counter.h" 15 #include "cc/debug/paint_time_counter.h" 16 #include "cc/output/begin_frame_args.h" 17 #include "cc/output/renderer.h" 18 #include "cc/quads/texture_draw_quad.h" 19 #include "cc/resources/memory_history.h" 20 #include "cc/trees/layer_tree_impl.h" 21 #include "skia/ext/platform_canvas.h" 22 #include "third_party/khronos/GLES2/gl2.h" 23 #include "third_party/khronos/GLES2/gl2ext.h" 24 #include "third_party/skia/include/core/SkBitmap.h" 25 #include "third_party/skia/include/core/SkPaint.h" 26 #include "third_party/skia/include/core/SkTypeface.h" 27 #include "third_party/skia/include/effects/SkColorMatrixFilter.h" 28 #include "ui/gfx/point.h" 29 #include "ui/gfx/size.h" 30 31 namespace cc { 32 33 static inline SkPaint CreatePaint() { 34 SkPaint paint; 35 #if (SK_R32_SHIFT || SK_B32_SHIFT != 16) 36 // The SkCanvas is in RGBA but the shader is expecting BGRA, so we need to 37 // swizzle our colors when drawing to the SkCanvas. 38 SkColorMatrix swizzle_matrix; 39 for (int i = 0; i < 20; ++i) 40 swizzle_matrix.fMat[i] = 0; 41 swizzle_matrix.fMat[0 + 5 * 2] = 1; 42 swizzle_matrix.fMat[1 + 5 * 1] = 1; 43 swizzle_matrix.fMat[2 + 5 * 0] = 1; 44 swizzle_matrix.fMat[3 + 5 * 3] = 1; 45 46 skia::RefPtr<SkColorMatrixFilter> filter = 47 skia::AdoptRef(SkColorMatrixFilter::Create(swizzle_matrix)); 48 paint.setColorFilter(filter.get()); 49 #endif 50 return paint; 51 } 52 53 HeadsUpDisplayLayerImpl::Graph::Graph(double indicator_value, 54 double start_upper_bound) 55 : value(0.0), 56 min(0.0), 57 max(0.0), 58 current_upper_bound(start_upper_bound), 59 default_upper_bound(start_upper_bound), 60 indicator(indicator_value) {} 61 62 double HeadsUpDisplayLayerImpl::Graph::UpdateUpperBound() { 63 double target_upper_bound = std::max(max, default_upper_bound); 64 current_upper_bound += (target_upper_bound - current_upper_bound) * 0.5; 65 return current_upper_bound; 66 } 67 68 HeadsUpDisplayLayerImpl::HeadsUpDisplayLayerImpl(LayerTreeImpl* tree_impl, 69 int id) 70 : LayerImpl(tree_impl, id), 71 typeface_(skia::AdoptRef( 72 SkTypeface::CreateFromName("monospace", SkTypeface::kBold))), 73 fps_graph_(60.0, 80.0), 74 paint_time_graph_(16.0, 48.0), 75 fade_step_(0) {} 76 77 HeadsUpDisplayLayerImpl::~HeadsUpDisplayLayerImpl() {} 78 79 scoped_ptr<LayerImpl> HeadsUpDisplayLayerImpl::CreateLayerImpl( 80 LayerTreeImpl* tree_impl) { 81 return HeadsUpDisplayLayerImpl::Create(tree_impl, id()).PassAs<LayerImpl>(); 82 } 83 84 void HeadsUpDisplayLayerImpl::AcquireResource( 85 ResourceProvider* resource_provider) { 86 for (ScopedPtrVector<ScopedResource>::iterator it = resources_.begin(); 87 it != resources_.end(); 88 ++it) { 89 if (!resource_provider->InUseByConsumer((*it)->id())) { 90 resources_.swap(it, resources_.end() - 1); 91 return; 92 } 93 } 94 95 scoped_ptr<ScopedResource> resource = 96 ScopedResource::Create(resource_provider); 97 resource->Allocate( 98 content_bounds(), ResourceProvider::TextureHintImmutable, RGBA_8888); 99 resources_.push_back(resource.Pass()); 100 } 101 102 class ResourceSizeIsEqualTo { 103 public: 104 explicit ResourceSizeIsEqualTo(const gfx::Size& size_) 105 : compare_size_(size_) {} 106 107 bool operator()(const ScopedResource* resource) { 108 return resource->size() == compare_size_; 109 } 110 111 private: 112 const gfx::Size compare_size_; 113 }; 114 115 void HeadsUpDisplayLayerImpl::ReleaseUnmatchedSizeResources( 116 ResourceProvider* resource_provider) { 117 ScopedPtrVector<ScopedResource>::iterator it_erase = 118 resources_.partition(ResourceSizeIsEqualTo(content_bounds())); 119 resources_.erase(it_erase, resources_.end()); 120 } 121 122 bool HeadsUpDisplayLayerImpl::WillDraw(DrawMode draw_mode, 123 ResourceProvider* resource_provider) { 124 if (draw_mode == DRAW_MODE_RESOURCELESS_SOFTWARE) 125 return false; 126 127 ReleaseUnmatchedSizeResources(resource_provider); 128 AcquireResource(resource_provider); 129 return LayerImpl::WillDraw(draw_mode, resource_provider); 130 } 131 132 void HeadsUpDisplayLayerImpl::AppendQuads( 133 RenderPass* render_pass, 134 const OcclusionTracker<LayerImpl>& occlusion_tracker, 135 AppendQuadsData* append_quads_data) { 136 if (!resources_.back()->id()) 137 return; 138 139 SharedQuadState* shared_quad_state = 140 render_pass->CreateAndAppendSharedQuadState(); 141 PopulateSharedQuadState(shared_quad_state); 142 143 gfx::Rect quad_rect(content_bounds()); 144 gfx::Rect opaque_rect(contents_opaque() ? quad_rect : gfx::Rect()); 145 gfx::Rect visible_quad_rect(quad_rect); 146 bool premultiplied_alpha = true; 147 gfx::PointF uv_top_left(0.f, 0.f); 148 gfx::PointF uv_bottom_right(1.f, 1.f); 149 const float vertex_opacity[] = { 1.f, 1.f, 1.f, 1.f }; 150 bool flipped = false; 151 TextureDrawQuad* quad = 152 render_pass->CreateAndAppendDrawQuad<TextureDrawQuad>(); 153 quad->SetNew(shared_quad_state, 154 quad_rect, 155 opaque_rect, 156 visible_quad_rect, 157 resources_.back()->id(), 158 premultiplied_alpha, 159 uv_top_left, 160 uv_bottom_right, 161 SK_ColorTRANSPARENT, 162 vertex_opacity, 163 flipped); 164 } 165 166 void HeadsUpDisplayLayerImpl::UpdateHudTexture( 167 DrawMode draw_mode, 168 ResourceProvider* resource_provider) { 169 if (draw_mode == DRAW_MODE_RESOURCELESS_SOFTWARE || !resources_.back()->id()) 170 return; 171 172 SkISize canvas_size; 173 if (hud_canvas_) 174 canvas_size = hud_canvas_->getDeviceSize(); 175 else 176 canvas_size.set(0, 0); 177 178 if (canvas_size.width() != content_bounds().width() || 179 canvas_size.height() != content_bounds().height() || !hud_canvas_) { 180 TRACE_EVENT0("cc", "ResizeHudCanvas"); 181 bool opaque = false; 182 hud_canvas_ = make_scoped_ptr(skia::CreateBitmapCanvas( 183 content_bounds().width(), content_bounds().height(), opaque)); 184 } 185 186 UpdateHudContents(); 187 188 { 189 TRACE_EVENT0("cc", "DrawHudContents"); 190 hud_canvas_->clear(SkColorSetARGB(0, 0, 0, 0)); 191 hud_canvas_->save(); 192 hud_canvas_->scale(contents_scale_x(), contents_scale_y()); 193 194 DrawHudContents(hud_canvas_.get()); 195 196 hud_canvas_->restore(); 197 } 198 199 TRACE_EVENT0("cc", "UploadHudTexture"); 200 SkImageInfo info; 201 size_t row_bytes = 0; 202 const void* pixels = hud_canvas_->peekPixels(&info, &row_bytes); 203 DCHECK(pixels); 204 gfx::Rect content_rect(content_bounds()); 205 DCHECK(info.colorType() == kN32_SkColorType); 206 resource_provider->SetPixels(resources_.back()->id(), 207 static_cast<const uint8_t*>(pixels), 208 content_rect, 209 content_rect, 210 gfx::Vector2d()); 211 } 212 213 void HeadsUpDisplayLayerImpl::ReleaseResources() { 214 resources_.clear(); 215 } 216 217 void HeadsUpDisplayLayerImpl::UpdateHudContents() { 218 const LayerTreeDebugState& debug_state = layer_tree_impl()->debug_state(); 219 220 // Don't update numbers every frame so text is readable. 221 base::TimeTicks now = layer_tree_impl()->CurrentBeginFrameArgs().frame_time; 222 if (base::TimeDelta(now - time_of_last_graph_update_).InSecondsF() > 0.25f) { 223 time_of_last_graph_update_ = now; 224 225 if (debug_state.show_fps_counter) { 226 FrameRateCounter* fps_counter = layer_tree_impl()->frame_rate_counter(); 227 fps_graph_.value = fps_counter->GetAverageFPS(); 228 fps_counter->GetMinAndMaxFPS(&fps_graph_.min, &fps_graph_.max); 229 } 230 231 if (debug_state.continuous_painting) { 232 PaintTimeCounter* paint_time_counter = 233 layer_tree_impl()->paint_time_counter(); 234 base::TimeDelta latest, min, max; 235 236 if (paint_time_counter->End()) 237 latest = **paint_time_counter->End(); 238 paint_time_counter->GetMinAndMaxPaintTime(&min, &max); 239 240 paint_time_graph_.value = latest.InMillisecondsF(); 241 paint_time_graph_.min = min.InMillisecondsF(); 242 paint_time_graph_.max = max.InMillisecondsF(); 243 } 244 245 if (debug_state.ShowMemoryStats()) { 246 MemoryHistory* memory_history = layer_tree_impl()->memory_history(); 247 if (memory_history->End()) 248 memory_entry_ = **memory_history->End(); 249 else 250 memory_entry_ = MemoryHistory::Entry(); 251 } 252 } 253 254 fps_graph_.UpdateUpperBound(); 255 paint_time_graph_.UpdateUpperBound(); 256 } 257 258 void HeadsUpDisplayLayerImpl::DrawHudContents(SkCanvas* canvas) { 259 const LayerTreeDebugState& debug_state = layer_tree_impl()->debug_state(); 260 261 if (debug_state.ShowHudRects()) { 262 DrawDebugRects(canvas, layer_tree_impl()->debug_rect_history()); 263 if (IsAnimatingHUDContents()) { 264 layer_tree_impl()->SetNeedsRedraw(); 265 } 266 } 267 268 SkRect area = SkRect::MakeEmpty(); 269 if (debug_state.continuous_painting) { 270 area = DrawPaintTimeDisplay( 271 canvas, layer_tree_impl()->paint_time_counter(), 0, 0); 272 } else if (debug_state.show_fps_counter) { 273 // Don't show the FPS display when continuous painting is enabled, because 274 // it would show misleading numbers. 275 area = 276 DrawFPSDisplay(canvas, layer_tree_impl()->frame_rate_counter(), 0, 0); 277 } 278 279 if (debug_state.ShowMemoryStats()) 280 DrawMemoryDisplay(canvas, 0, area.bottom(), SkMaxScalar(area.width(), 150)); 281 } 282 283 void HeadsUpDisplayLayerImpl::DrawText(SkCanvas* canvas, 284 SkPaint* paint, 285 const std::string& text, 286 SkPaint::Align align, 287 int size, 288 int x, 289 int y) const { 290 const bool anti_alias = paint->isAntiAlias(); 291 paint->setAntiAlias(true); 292 293 paint->setTextSize(size); 294 paint->setTextAlign(align); 295 paint->setTypeface(typeface_.get()); 296 canvas->drawText(text.c_str(), text.length(), x, y, *paint); 297 298 paint->setAntiAlias(anti_alias); 299 } 300 301 void HeadsUpDisplayLayerImpl::DrawText(SkCanvas* canvas, 302 SkPaint* paint, 303 const std::string& text, 304 SkPaint::Align align, 305 int size, 306 const SkPoint& pos) const { 307 DrawText(canvas, paint, text, align, size, pos.x(), pos.y()); 308 } 309 310 void HeadsUpDisplayLayerImpl::DrawGraphBackground(SkCanvas* canvas, 311 SkPaint* paint, 312 const SkRect& bounds) const { 313 paint->setColor(DebugColors::HUDBackgroundColor()); 314 canvas->drawRect(bounds, *paint); 315 } 316 317 void HeadsUpDisplayLayerImpl::DrawGraphLines(SkCanvas* canvas, 318 SkPaint* paint, 319 const SkRect& bounds, 320 const Graph& graph) const { 321 // Draw top and bottom line. 322 paint->setColor(DebugColors::HUDSeparatorLineColor()); 323 canvas->drawLine(bounds.left(), 324 bounds.top() - 1, 325 bounds.right(), 326 bounds.top() - 1, 327 *paint); 328 canvas->drawLine( 329 bounds.left(), bounds.bottom(), bounds.right(), bounds.bottom(), *paint); 330 331 // Draw indicator line (additive blend mode to increase contrast when drawn on 332 // top of graph). 333 paint->setColor(DebugColors::HUDIndicatorLineColor()); 334 paint->setXfermodeMode(SkXfermode::kPlus_Mode); 335 const double indicator_top = 336 bounds.height() * (1.0 - graph.indicator / graph.current_upper_bound) - 337 1.0; 338 canvas->drawLine(bounds.left(), 339 bounds.top() + indicator_top, 340 bounds.right(), 341 bounds.top() + indicator_top, 342 *paint); 343 paint->setXfermode(NULL); 344 } 345 346 SkRect HeadsUpDisplayLayerImpl::DrawFPSDisplay( 347 SkCanvas* canvas, 348 const FrameRateCounter* fps_counter, 349 int right, 350 int top) const { 351 const int kPadding = 4; 352 const int kGap = 6; 353 354 const int kFontHeight = 15; 355 356 const int kGraphWidth = fps_counter->time_stamp_history_size() - 2; 357 const int kGraphHeight = 40; 358 359 const int kHistogramWidth = 37; 360 361 int width = kGraphWidth + kHistogramWidth + 4 * kPadding; 362 int height = kFontHeight + kGraphHeight + 4 * kPadding + 2; 363 int left = bounds().width() - width - right; 364 SkRect area = SkRect::MakeXYWH(left, top, width, height); 365 366 SkPaint paint = CreatePaint(); 367 DrawGraphBackground(canvas, &paint, area); 368 369 SkRect text_bounds = 370 SkRect::MakeXYWH(left + kPadding, 371 top + kPadding, 372 kGraphWidth + kHistogramWidth + kGap + 2, 373 kFontHeight); 374 SkRect graph_bounds = SkRect::MakeXYWH(left + kPadding, 375 text_bounds.bottom() + 2 * kPadding, 376 kGraphWidth, 377 kGraphHeight); 378 SkRect histogram_bounds = SkRect::MakeXYWH(graph_bounds.right() + kGap, 379 graph_bounds.top(), 380 kHistogramWidth, 381 kGraphHeight); 382 383 const std::string value_text = 384 base::StringPrintf("FPS:%5.1f", fps_graph_.value); 385 const std::string min_max_text = 386 base::StringPrintf("%.0f-%.0f", fps_graph_.min, fps_graph_.max); 387 388 paint.setColor(DebugColors::FPSDisplayTextAndGraphColor()); 389 DrawText(canvas, 390 &paint, 391 value_text, 392 SkPaint::kLeft_Align, 393 kFontHeight, 394 text_bounds.left(), 395 text_bounds.bottom()); 396 DrawText(canvas, 397 &paint, 398 min_max_text, 399 SkPaint::kRight_Align, 400 kFontHeight, 401 text_bounds.right(), 402 text_bounds.bottom()); 403 404 DrawGraphLines(canvas, &paint, graph_bounds, fps_graph_); 405 406 // Collect graph and histogram data. 407 SkPath path; 408 409 const int kHistogramSize = 20; 410 double histogram[kHistogramSize] = { 1.0 }; 411 double max_bucket_value = 1.0; 412 413 for (FrameRateCounter::RingBufferType::Iterator it = --fps_counter->end(); it; 414 --it) { 415 base::TimeDelta delta = fps_counter->RecentFrameInterval(it.index() + 1); 416 417 // Skip this particular instantaneous frame rate if it is not likely to have 418 // been valid. 419 if (!fps_counter->IsBadFrameInterval(delta)) { 420 double fps = 1.0 / delta.InSecondsF(); 421 422 // Clamp the FPS to the range we want to plot visually. 423 double p = fps / fps_graph_.current_upper_bound; 424 if (p > 1.0) 425 p = 1.0; 426 427 // Plot this data point. 428 SkPoint cur = 429 SkPoint::Make(graph_bounds.left() + it.index(), 430 graph_bounds.bottom() - p * graph_bounds.height()); 431 if (path.isEmpty()) 432 path.moveTo(cur); 433 else 434 path.lineTo(cur); 435 436 // Use the fps value to find the right bucket in the histogram. 437 int bucket_index = floor(p * (kHistogramSize - 1)); 438 439 // Add the delta time to take the time spent at that fps rate into 440 // account. 441 histogram[bucket_index] += delta.InSecondsF(); 442 max_bucket_value = std::max(histogram[bucket_index], max_bucket_value); 443 } 444 } 445 446 // Draw FPS histogram. 447 paint.setColor(DebugColors::HUDSeparatorLineColor()); 448 canvas->drawLine(histogram_bounds.left() - 1, 449 histogram_bounds.top() - 1, 450 histogram_bounds.left() - 1, 451 histogram_bounds.bottom() + 1, 452 paint); 453 canvas->drawLine(histogram_bounds.right() + 1, 454 histogram_bounds.top() - 1, 455 histogram_bounds.right() + 1, 456 histogram_bounds.bottom() + 1, 457 paint); 458 459 paint.setColor(DebugColors::FPSDisplayTextAndGraphColor()); 460 const double bar_height = histogram_bounds.height() / kHistogramSize; 461 462 for (int i = kHistogramSize - 1; i >= 0; --i) { 463 if (histogram[i] > 0) { 464 double bar_width = 465 histogram[i] / max_bucket_value * histogram_bounds.width(); 466 canvas->drawRect( 467 SkRect::MakeXYWH(histogram_bounds.left(), 468 histogram_bounds.bottom() - (i + 1) * bar_height, 469 bar_width, 470 1), 471 paint); 472 } 473 } 474 475 // Draw FPS graph. 476 paint.setAntiAlias(true); 477 paint.setStyle(SkPaint::kStroke_Style); 478 paint.setStrokeWidth(1); 479 canvas->drawPath(path, paint); 480 481 return area; 482 } 483 484 SkRect HeadsUpDisplayLayerImpl::DrawMemoryDisplay(SkCanvas* canvas, 485 int right, 486 int top, 487 int width) const { 488 if (!memory_entry_.bytes_total()) 489 return SkRect::MakeEmpty(); 490 491 const int kPadding = 4; 492 const int kFontHeight = 13; 493 494 const int height = 3 * kFontHeight + 4 * kPadding; 495 const int left = bounds().width() - width - right; 496 const SkRect area = SkRect::MakeXYWH(left, top, width, height); 497 498 const double megabyte = 1024.0 * 1024.0; 499 500 SkPaint paint = CreatePaint(); 501 DrawGraphBackground(canvas, &paint, area); 502 503 SkPoint title_pos = SkPoint::Make(left + kPadding, top + kFontHeight); 504 SkPoint stat1_pos = SkPoint::Make(left + width - kPadding - 1, 505 top + kPadding + 2 * kFontHeight); 506 SkPoint stat2_pos = SkPoint::Make(left + width - kPadding - 1, 507 top + 2 * kPadding + 3 * kFontHeight); 508 509 paint.setColor(DebugColors::MemoryDisplayTextColor()); 510 DrawText(canvas, 511 &paint, 512 "GPU memory", 513 SkPaint::kLeft_Align, 514 kFontHeight, 515 title_pos); 516 517 std::string text = 518 base::StringPrintf("%6.1f MB used", 519 (memory_entry_.bytes_unreleasable + 520 memory_entry_.bytes_allocated) / megabyte); 521 DrawText(canvas, &paint, text, SkPaint::kRight_Align, kFontHeight, stat1_pos); 522 523 if (memory_entry_.bytes_over) { 524 paint.setColor(SK_ColorRED); 525 text = base::StringPrintf("%6.1f MB over", 526 memory_entry_.bytes_over / megabyte); 527 } else { 528 text = base::StringPrintf("%6.1f MB max ", 529 memory_entry_.total_budget_in_bytes / megabyte); 530 } 531 DrawText(canvas, &paint, text, SkPaint::kRight_Align, kFontHeight, stat2_pos); 532 533 return area; 534 } 535 536 SkRect HeadsUpDisplayLayerImpl::DrawPaintTimeDisplay( 537 SkCanvas* canvas, 538 const PaintTimeCounter* paint_time_counter, 539 int right, 540 int top) const { 541 const int kPadding = 4; 542 const int kFontHeight = 15; 543 544 const int kGraphWidth = paint_time_counter->HistorySize(); 545 const int kGraphHeight = 40; 546 547 const int width = kGraphWidth + 2 * kPadding; 548 const int height = 549 kFontHeight + kGraphHeight + 4 * kPadding + 2 + kFontHeight + kPadding; 550 const int left = bounds().width() - width - right; 551 552 const SkRect area = SkRect::MakeXYWH(left, top, width, height); 553 554 SkPaint paint = CreatePaint(); 555 DrawGraphBackground(canvas, &paint, area); 556 557 SkRect text_bounds = SkRect::MakeXYWH( 558 left + kPadding, top + kPadding, kGraphWidth, kFontHeight); 559 SkRect text_bounds2 = SkRect::MakeXYWH(left + kPadding, 560 text_bounds.bottom() + kPadding, 561 kGraphWidth, 562 kFontHeight); 563 SkRect graph_bounds = SkRect::MakeXYWH(left + kPadding, 564 text_bounds2.bottom() + 2 * kPadding, 565 kGraphWidth, 566 kGraphHeight); 567 568 const std::string value_text = 569 base::StringPrintf("%.1f", paint_time_graph_.value); 570 const std::string min_max_text = base::StringPrintf( 571 "%.1f-%.1f", paint_time_graph_.min, paint_time_graph_.max); 572 573 paint.setColor(DebugColors::PaintTimeDisplayTextAndGraphColor()); 574 DrawText(canvas, 575 &paint, 576 "Page paint time (ms)", 577 SkPaint::kLeft_Align, 578 kFontHeight, 579 text_bounds.left(), 580 text_bounds.bottom()); 581 DrawText(canvas, 582 &paint, 583 value_text, 584 SkPaint::kLeft_Align, 585 kFontHeight, 586 text_bounds2.left(), 587 text_bounds2.bottom()); 588 DrawText(canvas, 589 &paint, 590 min_max_text, 591 SkPaint::kRight_Align, 592 kFontHeight, 593 text_bounds2.right(), 594 text_bounds2.bottom()); 595 596 paint.setColor(DebugColors::PaintTimeDisplayTextAndGraphColor()); 597 for (PaintTimeCounter::RingBufferType::Iterator it = 598 paint_time_counter->End(); 599 it; 600 --it) { 601 double pt = it->InMillisecondsF(); 602 603 if (pt == 0.0) 604 continue; 605 606 double p = pt / paint_time_graph_.current_upper_bound; 607 if (p > 1.0) 608 p = 1.0; 609 610 canvas->drawRect( 611 SkRect::MakeXYWH(graph_bounds.left() + it.index(), 612 graph_bounds.bottom() - p * graph_bounds.height(), 613 1, 614 p * graph_bounds.height()), 615 paint); 616 } 617 618 DrawGraphLines(canvas, &paint, graph_bounds, paint_time_graph_); 619 620 return area; 621 } 622 623 void HeadsUpDisplayLayerImpl::DrawDebugRect( 624 SkCanvas* canvas, 625 SkPaint* paint, 626 const DebugRect& rect, 627 SkColor stroke_color, 628 SkColor fill_color, 629 float stroke_width, 630 const std::string& label_text) const { 631 gfx::Rect debug_layer_rect = gfx::ScaleToEnclosingRect( 632 rect.rect, 1.0 / contents_scale_x(), 1.0 / contents_scale_y()); 633 SkIRect sk_rect = RectToSkIRect(debug_layer_rect); 634 paint->setColor(fill_color); 635 paint->setStyle(SkPaint::kFill_Style); 636 canvas->drawIRect(sk_rect, *paint); 637 638 paint->setColor(stroke_color); 639 paint->setStyle(SkPaint::kStroke_Style); 640 paint->setStrokeWidth(SkFloatToScalar(stroke_width)); 641 canvas->drawIRect(sk_rect, *paint); 642 643 if (label_text.length()) { 644 const int kFontHeight = 12; 645 const int kPadding = 3; 646 647 // The debug_layer_rect may be huge, and converting to a floating point may 648 // be lossy, so intersect with the HUD layer bounds first to prevent that. 649 gfx::Rect clip_rect = debug_layer_rect; 650 clip_rect.Intersect(gfx::Rect(content_bounds())); 651 SkRect sk_clip_rect = RectToSkRect(clip_rect); 652 653 canvas->save(); 654 canvas->clipRect(sk_clip_rect); 655 canvas->translate(sk_clip_rect.x(), sk_clip_rect.y()); 656 657 SkPaint label_paint = CreatePaint(); 658 label_paint.setTextSize(kFontHeight); 659 label_paint.setTypeface(typeface_.get()); 660 label_paint.setColor(stroke_color); 661 662 const SkScalar label_text_width = 663 label_paint.measureText(label_text.c_str(), label_text.length()); 664 canvas->drawRect(SkRect::MakeWH(label_text_width + 2 * kPadding, 665 kFontHeight + 2 * kPadding), 666 label_paint); 667 668 label_paint.setAntiAlias(true); 669 label_paint.setColor(SkColorSetARGB(255, 50, 50, 50)); 670 canvas->drawText(label_text.c_str(), 671 label_text.length(), 672 kPadding, 673 kFontHeight * 0.8f + kPadding, 674 label_paint); 675 676 canvas->restore(); 677 } 678 } 679 680 void HeadsUpDisplayLayerImpl::DrawDebugRects( 681 SkCanvas* canvas, 682 DebugRectHistory* debug_rect_history) { 683 SkPaint paint = CreatePaint(); 684 685 const std::vector<DebugRect>& debug_rects = debug_rect_history->debug_rects(); 686 std::vector<DebugRect> new_paint_rects; 687 688 for (size_t i = 0; i < debug_rects.size(); ++i) { 689 SkColor stroke_color = 0; 690 SkColor fill_color = 0; 691 float stroke_width = 0.f; 692 std::string label_text; 693 694 switch (debug_rects[i].type) { 695 case PAINT_RECT_TYPE: 696 new_paint_rects.push_back(debug_rects[i]); 697 continue; 698 case PROPERTY_CHANGED_RECT_TYPE: 699 stroke_color = DebugColors::PropertyChangedRectBorderColor(); 700 fill_color = DebugColors::PropertyChangedRectFillColor(); 701 stroke_width = DebugColors::PropertyChangedRectBorderWidth(); 702 break; 703 case SURFACE_DAMAGE_RECT_TYPE: 704 stroke_color = DebugColors::SurfaceDamageRectBorderColor(); 705 fill_color = DebugColors::SurfaceDamageRectFillColor(); 706 stroke_width = DebugColors::SurfaceDamageRectBorderWidth(); 707 break; 708 case REPLICA_SCREEN_SPACE_RECT_TYPE: 709 stroke_color = DebugColors::ScreenSpaceSurfaceReplicaRectBorderColor(); 710 fill_color = DebugColors::ScreenSpaceSurfaceReplicaRectFillColor(); 711 stroke_width = DebugColors::ScreenSpaceSurfaceReplicaRectBorderWidth(); 712 break; 713 case SCREEN_SPACE_RECT_TYPE: 714 stroke_color = DebugColors::ScreenSpaceLayerRectBorderColor(); 715 fill_color = DebugColors::ScreenSpaceLayerRectFillColor(); 716 stroke_width = DebugColors::ScreenSpaceLayerRectBorderWidth(); 717 break; 718 case OCCLUDING_RECT_TYPE: 719 stroke_color = DebugColors::OccludingRectBorderColor(); 720 fill_color = DebugColors::OccludingRectFillColor(); 721 stroke_width = DebugColors::OccludingRectBorderWidth(); 722 break; 723 case NONOCCLUDING_RECT_TYPE: 724 stroke_color = DebugColors::NonOccludingRectBorderColor(); 725 fill_color = DebugColors::NonOccludingRectFillColor(); 726 stroke_width = DebugColors::NonOccludingRectBorderWidth(); 727 break; 728 case TOUCH_EVENT_HANDLER_RECT_TYPE: 729 stroke_color = DebugColors::TouchEventHandlerRectBorderColor(); 730 fill_color = DebugColors::TouchEventHandlerRectFillColor(); 731 stroke_width = DebugColors::TouchEventHandlerRectBorderWidth(); 732 label_text = "touch event listener"; 733 break; 734 case WHEEL_EVENT_HANDLER_RECT_TYPE: 735 stroke_color = DebugColors::WheelEventHandlerRectBorderColor(); 736 fill_color = DebugColors::WheelEventHandlerRectFillColor(); 737 stroke_width = DebugColors::WheelEventHandlerRectBorderWidth(); 738 label_text = "mousewheel event listener"; 739 break; 740 case SCROLL_EVENT_HANDLER_RECT_TYPE: 741 stroke_color = DebugColors::ScrollEventHandlerRectBorderColor(); 742 fill_color = DebugColors::ScrollEventHandlerRectFillColor(); 743 stroke_width = DebugColors::ScrollEventHandlerRectBorderWidth(); 744 label_text = "scroll event listener"; 745 break; 746 case NON_FAST_SCROLLABLE_RECT_TYPE: 747 stroke_color = DebugColors::NonFastScrollableRectBorderColor(); 748 fill_color = DebugColors::NonFastScrollableRectFillColor(); 749 stroke_width = DebugColors::NonFastScrollableRectBorderWidth(); 750 label_text = "repaints on scroll"; 751 break; 752 case ANIMATION_BOUNDS_RECT_TYPE: 753 stroke_color = DebugColors::LayerAnimationBoundsBorderColor(); 754 fill_color = DebugColors::LayerAnimationBoundsFillColor(); 755 stroke_width = DebugColors::LayerAnimationBoundsBorderWidth(); 756 label_text = "animation bounds"; 757 break; 758 } 759 760 DrawDebugRect(canvas, 761 &paint, 762 debug_rects[i], 763 stroke_color, 764 fill_color, 765 stroke_width, 766 label_text); 767 } 768 769 if (new_paint_rects.size()) { 770 paint_rects_.swap(new_paint_rects); 771 fade_step_ = DebugColors::kFadeSteps; 772 } 773 if (fade_step_ > 0) { 774 fade_step_--; 775 for (size_t i = 0; i < paint_rects_.size(); ++i) { 776 DrawDebugRect(canvas, 777 &paint, 778 paint_rects_[i], 779 DebugColors::PaintRectBorderColor(fade_step_), 780 DebugColors::PaintRectFillColor(fade_step_), 781 DebugColors::PaintRectBorderWidth(), 782 ""); 783 } 784 } 785 } 786 787 const char* HeadsUpDisplayLayerImpl::LayerTypeAsString() const { 788 return "cc::HeadsUpDisplayLayerImpl"; 789 } 790 791 void HeadsUpDisplayLayerImpl::AsValueInto( 792 base::debug::TracedValue* dict) const { 793 LayerImpl::AsValueInto(dict); 794 dict->SetString("layer_name", "Heads Up Display Layer"); 795 } 796 797 } // namespace cc 798