1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 403 404 405 406 407 408 409 410 411 412 413 414 415 416 417 418 419 420 421 422 423 424 425 426 427 428 429 430 431 432 433 434 435 436 437 438 439 440 441 442 443 444 445 446 447 448 449 450 451 452 453 454 455 456 457 458 459 460 461 462 463 464 465 466 467 468 469 470 471 472 473 474 475 476 477 478 479 480 481 482 483 484 485 486 487 488 489 490 491 492 493 494 495 496 497 498 499 500 501 502 503 504 505 506 507 508 509 510 511 512 513 514 515 516 517 518 519 520 521 522 523 524 525 526 527 528 529 530 531 532 533 534 535 536 537 538 539 540 541 542 543 544 545 546 547 548 549 550 551 552 553 554 555 556 557 558 559 560 561 562 563 564 565 566 567 568 569 570 571 572 573 574 575 576 577 578 579 580 581 582 583 584 585 586 587 588 589 590 591 592 593 594 595 596 597 598 599 600 601 602 603 604 605 606 607 608 609 610 611 612 613 614 615 616 617 618 619 620 621 622 623 624 625 626 627 628 629 630 631 632 633 634 635 636 637 638 639 640 641 642 643 644 645 646 647 648 649 650 651 652 653 654 655 656 657 658 659 660 661 662 663 664 665 666 667 668 669 670 671 672 673 674 675 676 677 678 679 680 681 682 683 684 685 686 687 688 689 690 691 692 693 694 695 696 697 698 699 700 701 702 703 704 705 706 707 708 709 710 711 712 713 714 715 716 717 718 719 720 721 722 723 724 725 726 727 728 729 730 731 732 733 734 735 736 737 738 739 740 741 742 743 744 745 746 747 748 749 750 751 752 753 754 755 756 757 758 759 760 761 762 763 764 765 766 767 768 769 770 771 772 773 774 775 776 777 778 779 780 781 782 783 784 785 786 787 788 789 790 791 792 793 794 795 796 797 798 799 800 801 802 803 804 805 806 807 808 809 810 811 812 813 814 815 816 817 818 819 820 821 822 823 824 825 826 827 828 829 830 831 832 833 834 835 836 837 838 839 840 841 842 843 844 845 846 847 848 849 850 851 852 853 854 855 856 857 858 859 860 861 862 863 864 865 866 867 868 869 870 871 872 873 874 875 876 877 878 879 880 881 882 883 884 885 886 887 888 889 890 891 892 893 894 895 896 897 898 899 900 901 902 903 904 905 906 907 908 909 910 911 912 913 914 915 916 917 918 919 920 921 922 923 924 925 926 927 928 929 930 931 932 933 934 935 936 937 938 939 940 941 942 943 944 945 946 947 948 949 950 951 952 953 954 955 956 957 958 959 960 961 962 963 964 965 966 967 968 969 970 971 972 973 974 975 976 977 978 979 980 981 982 983 984 985 986 987 988 989 990 991 992 993 994 995 996 997 998 999 1000 1001 1002 1003 1004 1005 1006 1007 1008 1009 1010 1011 1012 1013 1014 1015 1016 1017 1018 1019 1020 1021 1022 1023 1024 1025 1026 1027 1028 1029 1030 1031 1032 1033 1034 1035 1036 1037 1038 1039 1040 1041 1042 1043 1044 1045 1046 1047 1048 1049 1050 1051 1052 1053 1054 1055 1056 1057 1058 1059 1060 1061 1062 1063 1064 1065 1066 1067 1068 1069 1070 1071 1072 1073 1074 1075 1076 1077 1078 1079 1080 1081 1082 1083 1084 1085 1086 1087 1088 1089 1090 1091 1092 1093 1094 1095 1096 1097 1098 1099 1100 1101 1102 1103 1104 1105 1106 1107 1108 1109 1110 1111 1112 1113 1114 1115 1116 1117 1118 1119 1120 1121 1122 1123 1124 1125 1126 1127 1128 1129 1130 1131 1132 1133 1134 1135 1136 1137 1138 1139 1140 1141 1142 1143 1144 1145 1146 1147 1148 1149 1150 1151 1152 1153 1154 1155 1156 1157 1158 1159 1160 1161 1162 1163 1164 1165 1166 1167 1168 1169 1170 1171 1172 1173 1174 1175 1176 1177 1178 1179 1180 1181 1182 1183 1184 1185 1186 1187 1188 1189 1190 1191 1192 1193 1194 1195 1196 1197 1198 1199 1200 1201 1202 1203 1204 1205 1206
|
// Copyright 2012 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "components/viz/service/display/direct_renderer.h"
#include <limits.h>
#include <stddef.h>
#include <algorithm>
#include <utility>
#include <vector>
#include "base/auto_reset.h"
#include "base/containers/circular_deque.h"
#include "base/lazy_instance.h"
#include "base/logging.h"
#include "base/memory/raw_ptr.h"
#include "base/metrics/histogram_macros.h"
#include "base/numerics/safe_conversions.h"
#include "base/timer/elapsed_timer.h"
#include "base/trace_event/trace_event.h"
#include "build/build_config.h"
#include "cc/base/math_util.h"
#include "cc/paint/filter_operations.h"
#include "components/viz/common/color_space_utils.h"
#include "components/viz/common/display/renderer_settings.h"
#include "components/viz/common/features.h"
#include "components/viz/common/frame_sinks/copy_output_request.h"
#include "components/viz/common/frame_sinks/copy_output_util.h"
#include "components/viz/common/quads/aggregated_render_pass_draw_quad.h"
#include "components/viz/common/quads/compositor_render_pass_draw_quad.h"
#include "components/viz/common/quads/draw_quad.h"
#include "components/viz/common/quads/solid_color_draw_quad.h"
#include "components/viz/common/resources/platform_color.h"
#include "components/viz/common/resources/shared_image_format.h"
#include "components/viz/common/resources/shared_image_format_utils.h"
#include "components/viz/common/viz_utils.h"
#include "components/viz/service/debugger/viz_debugger.h"
#include "components/viz/service/display/bsp_tree.h"
#include "components/viz/service/display/bsp_walk_action.h"
#include "components/viz/service/display/output_surface.h"
#include "components/viz/service/display/render_pass_alpha_type.h"
#include "components/viz/service/display/skia_output_surface.h"
#include "gpu/command_buffer/common/capabilities.h"
#include "media/base/video_util.h"
#include "ui/gfx/buffer_types.h"
#include "ui/gfx/display_color_spaces.h"
#include "ui/gfx/geometry/quad_f.h"
#include "ui/gfx/geometry/rect.h"
#include "ui/gfx/geometry/rect_conversions.h"
#include "ui/gfx/geometry/size.h"
#include "ui/gfx/geometry/transform.h"
#include "ui/gfx/geometry/transform_util.h"
namespace viz {
namespace {
// Enum used for UMA histogram. These enum values must not be changed or
// reused.
enum class RenderPassDrawRectAssign {
// New assignment. The output was empty before this point.
kNewOutputRect = 0,
// Assignment to a drawn rect that already has been set. This is likely an
// expansion of the 'output_rect' of a render pass.
kReassign = 1,
// Output rects match. No re-assignment was done.
kNoAssign = 2,
// Assigned 'output_rect' to drawn rect but it was full damage regardless.
kFullDamage = 3,
kMaxValue = kFullDamage,
};
} // namespace
DirectRenderer::DrawingFrame::DrawingFrame() = default;
DirectRenderer::DrawingFrame::~DrawingFrame() = default;
DirectRenderer::SwapFrameData::SwapFrameData() = default;
DirectRenderer::SwapFrameData::~SwapFrameData() = default;
DirectRenderer::SwapFrameData::SwapFrameData(SwapFrameData&&) = default;
DirectRenderer::SwapFrameData& DirectRenderer::SwapFrameData::operator=(
SwapFrameData&&) = default;
DirectRenderer::DirectRenderer(const RendererSettings* settings,
const DebugRendererSettings* debug_settings,
OutputSurface* output_surface,
DisplayResourceProvider* resource_provider,
OverlayProcessorInterface* overlay_processor)
: settings_(settings),
debug_settings_(debug_settings),
output_surface_(output_surface),
resource_provider_(resource_provider),
overlay_processor_(overlay_processor),
allow_undamaged_nonroot_render_pass_to_skip_(base::FeatureList::IsEnabled(
features::kAllowUndamagedNonrootRenderPassToSkip)) {
DCHECK(output_surface_);
}
DirectRenderer::~DirectRenderer() = default;
void DirectRenderer::Initialize() {
use_partial_swap_ = settings_->partial_swap_enabled && CanPartialSwap();
initialized_ = true;
}
gfx::AxisTransform2d DirectRenderer::CalculateTargetToDeviceTransform(
const gfx::Rect& draw_rect,
const gfx::Size& viewport_size) {
gfx::AxisTransform2d target_to_device_transform =
gfx::OrthoProjectionTransform(draw_rect.x(), draw_rect.right(),
draw_rect.y(), draw_rect.bottom());
target_to_device_transform.PostConcat(gfx::WindowTransform(
0, 0, viewport_size.width(), viewport_size.height()));
return target_to_device_transform;
}
gfx::Rect DirectRenderer::MoveFromDrawToWindowSpace(
const gfx::Rect& draw_rect) const {
gfx::Rect window_rect = draw_rect;
window_rect -=
current_frame()->current_render_pass->output_rect.OffsetFromOrigin();
return window_rect;
}
std::optional<const DrawQuad*> DirectRenderer::CanPassBeDrawnDirectly(
const AggregatedRenderPass* pass,
const RenderPassRequirements& requirements) {
return std::nullopt;
}
void DirectRenderer::SetOutputSurfaceClipRect(const gfx::Rect& clip_rect) {
output_surface_clip_rect_ = clip_rect;
}
void DirectRenderer::SetVisible(bool visible) {
DCHECK(initialized_);
if (visible_ == visible)
return;
visible_ = visible;
DidChangeVisibility();
}
void DirectRenderer::ReallocatedFrameBuffers() {
next_frame_needs_full_frame_redraw_ = true;
}
void DirectRenderer::Reshape(
const OutputSurface::ReshapeParams& reshape_params) {
output_surface_->Reshape(reshape_params);
}
void DirectRenderer::DecideRenderPassAllocationsForFrame(
const AggregatedRenderPassList& render_passes_in_draw_order) {
DCHECK(render_pass_bypass_quads_.empty());
auto& root_render_pass = render_passes_in_draw_order.back();
base::flat_map<AggregatedRenderPassId, RenderPassRequirements>
render_passes_in_frame;
for (const auto& pass : render_passes_in_draw_order) {
const bool is_root = pass == root_render_pass;
#if BUILDFLAG(IS_WIN)
// For delegated compositing the root pass is preserved, but not rendered.
// If a previous frame fell out of delegated compositing we want to make
// sure that we deallocate its backing when switching back to delegated
// compositing.
if (is_root && output_surface_->capabilities().renderer_allocates_images &&
!current_frame()->output_surface_plane) {
// We expect to be in delegated compositing mode, which means the root
// damage rect has been cleared.
CHECK(current_frame()->root_damage_rect.IsEmpty());
continue;
}
#else
// TODO(crbug.com/40224327): Consider deallocating the primary plane in this
// case.
// Non-Windows platforms use BufferQueue, which are not owned by the render
// pass backing. ChromeOS must hold on to the root surface buffers to ensure
// overlay-ability and macOS wants to just discard the underlying surfaces
// for performance.
#endif
const RenderPassRequirements requirements =
CalculateRenderPassRequirements(pass.get());
// If there's a copy request, we need an explicit renderpass backing so
// only try to draw directly if there are no copy requests.
if (!is_root && pass->copy_requests.empty()) {
if (std::optional<const DrawQuad*> quad =
CanPassBeDrawnDirectly(pass.get(), requirements)) {
// If the render pass is drawn directly, it will not be drawn from as
// a render pass so it's not added to the map.
render_pass_bypass_quads_[pass->id] = quad.value();
continue;
}
}
render_passes_in_frame[pass->id] = requirements;
}
UMA_HISTOGRAM_COUNTS_1000(
"Compositing.Display.FlattenedRenderPassCount",
base::saturated_cast<int>(render_passes_in_draw_order.size() -
render_pass_bypass_quads_.size()));
UpdateRenderPassTextures(render_passes_in_draw_order, render_passes_in_frame);
}
void DirectRenderer::DrawFrame(
AggregatedRenderPassList* render_passes_in_draw_order,
float device_scale_factor,
const gfx::Size& device_viewport_size,
const gfx::DisplayColorSpaces& display_color_spaces,
SurfaceDamageRectList surface_damage_rect_list) {
DCHECK(visible_);
TRACE_EVENT0("viz,benchmark", "DirectRenderer::DrawFrame");
auto* root_render_pass = render_passes_in_draw_order->back().get();
DCHECK(root_render_pass);
current_frame_valid_ = true;
current_frame_ = DrawingFrame();
current_frame()->render_passes_in_draw_order = render_passes_in_draw_order;
current_frame()->root_render_pass = root_render_pass;
current_frame()->root_damage_rect = root_render_pass->damage_rect;
if (overlay_processor_) {
current_frame()->root_damage_rect.Union(
overlay_processor_->GetAndResetOverlayDamage());
}
if (auto* ink_renderer =
GetDelegatedInkPointRenderer(/*create_if_necessary=*/false)) {
// The path must be finalized before GetDamageRect() can return an
// accurate rect that will allow the old trail to be removed and the new
// trail to be drawn at the same time.
ink_renderer->FinalizePathForDraw();
}
AddInkDamageToRenderPass(current_frame()->root_render_pass,
current_frame()->root_damage_rect);
current_frame()->root_damage_rect.Intersect(gfx::Rect(device_viewport_size));
current_frame()->device_viewport_size = device_viewport_size;
current_frame()->display_color_spaces = display_color_spaces;
output_surface_->SetNeedsMeasureNextDrawLatency();
BeginDrawingFrame();
// RenderPass owns filters, backdrop_filters, etc., and will outlive this
// function call. So it is safe to store pointers in these maps.
for (const auto& pass : *render_passes_in_draw_order) {
if (!pass->filters.IsEmpty()) {
render_pass_filters_[pass->id] = &pass->filters;
if (pass->filters.HasFilterThatMovesPixels())
has_pixel_moving_foreground_filters_ = true;
}
if (!pass->backdrop_filters.IsEmpty()) {
render_pass_backdrop_filters_[pass->id] = &pass->backdrop_filters;
render_pass_backdrop_filter_bounds_[pass->id] =
pass->backdrop_filter_bounds;
if (pass->backdrop_filters.HasFilterThatMovesPixels()) {
backdrop_filter_output_rects_[pass->id] =
cc::MathUtil::MapEnclosingClippedRect(
pass->transform_to_root_target, pass->output_rect);
}
}
}
bool frame_has_alpha =
current_frame()->root_render_pass->has_transparent_background;
gfx::ColorSpace frame_color_space =
RenderPassColorSpace(current_frame()->root_render_pass);
SharedImageFormat frame_si_format = GetSharedImageFormat(
current_frame()->display_color_spaces.GetOutputBufferFormat(
current_frame()->root_render_pass->content_color_usage,
frame_has_alpha));
gfx::Size surface_resource_size =
CalculateSizeForOutputSurface(device_viewport_size);
if (overlay_processor_) {
// Display transform and viewport size are needed for overlay validator on
// Android SurfaceControl, and viewport size is need on Windows. These need
// to be called before ProcessForOverlays.
overlay_processor_->SetDisplayTransformHint(
output_surface_->GetDisplayTransform());
overlay_processor_->SetViewportSize(device_viewport_size);
// Before ProcessForOverlay calls into the hardware to ask about whether the
// overlay setup can be handled, we need to set up the primary plane.
OverlayProcessorInterface::OutputSurfaceOverlayPlane* primary_plane =
nullptr;
if (output_surface_->capabilities().renderer_allocates_images) {
// TODO(crbug.com/40224327): `output_surface_plane` can be changed to an
// OverlayCandidate now.
current_frame()->output_surface_plane =
overlay_processor_->ProcessOutputSurfaceAsOverlay(
device_viewport_size, surface_resource_size, frame_si_format,
frame_color_space, frame_has_alpha, 1.0f /*opacity*/,
GetPrimaryPlaneOverlayTestingMailbox());
primary_plane = &(current_frame()->output_surface_plane.value());
}
// Attempt to replace some or all of the quads of the root render pass with
// overlays.
base::ElapsedTimer overlay_processing_timer;
overlay_processor_->ProcessForOverlays(
resource_provider_, render_passes_in_draw_order,
output_surface_->color_matrix(), render_pass_filters_,
render_pass_backdrop_filters_, std::move(surface_damage_rect_list),
primary_plane, ¤t_frame()->overlay_list,
¤t_frame()->root_damage_rect,
¤t_frame()->root_content_bounds);
auto overlay_processing_time = overlay_processing_timer.Elapsed();
constexpr auto kMinTime = base::Microseconds(5);
constexpr auto kMaxTime = base::Milliseconds(10);
constexpr int kTimeBuckets = 50;
UMA_HISTOGRAM_CUSTOM_MICROSECONDS_TIMES(
"Compositing.DirectRenderer.OverlayProcessingUs",
overlay_processing_time, kMinTime, kMaxTime, kTimeBuckets);
// If we promote any quad to an underlay then the main plane must support
// alpha.
// TODO(ccameron): We should update |frame_color_space|, and
// |frame_si_format| based on the change in |frame_has_alpha|.
if (current_frame()->output_surface_plane) {
frame_has_alpha |= current_frame()->output_surface_plane->enable_blending;
root_render_pass->has_transparent_background = frame_has_alpha;
}
overlay_processor_->AdjustOutputSurfaceOverlay(
&(current_frame()->output_surface_plane));
}
// Only reshape when we know we are going to draw. Otherwise, the reshape
// can leave the window at the wrong size if we never draw and the proper
// viewport size is never set.
skipped_render_pass_ids_.clear();
bool needs_full_frame_redraw = false;
auto display_transform = output_surface_->GetDisplayTransform();
OutputSurface::ReshapeParams reshape_params;
reshape_params.size = surface_resource_size;
reshape_params.device_scale_factor = device_scale_factor;
reshape_params.color_space = frame_color_space;
reshape_params.format = frame_si_format;
reshape_params.alpha_type = frame_has_alpha ? RenderPassAlphaType::kPremul
: RenderPassAlphaType::kOpaque;
if (next_frame_needs_full_frame_redraw_ ||
reshape_params != reshape_params_ ||
display_transform != reshape_display_transform_) {
next_frame_needs_full_frame_redraw_ = false;
reshape_params_ = reshape_params;
reshape_display_transform_ = display_transform;
Reshape(reshape_params);
#if BUILDFLAG(IS_APPLE)
// For Mac, all render passes will be promoted to CALayer, the redraw full
// frame is for the main surface only.
// TODO(penghuang): verify this logic with SkiaRenderer.
if (!output_surface_->capabilities().supports_surfaceless)
needs_full_frame_redraw = true;
#elif BUILDFLAG(IS_WIN)
// If compositing is delegated, then there will be no output_surface_plane,
// and we should not trigger a redraw of the root render pass.
// Pixel tests will not be displayed as overlay planes, so they need redraw.
if (current_frame()->output_surface_plane ||
!output_surface_->capabilities().renderer_allocates_images) {
needs_full_frame_redraw = true;
}
#else
// The entire surface has to be redrawn if reshape is requested.
needs_full_frame_redraw = true;
#endif
}
// DecideRenderPassAllocationsForFrame needs
// current_frame()->display_color_spaces to decide the color space
// of each render pass. Overlay processing is also allowed to modify the
// render pass backing requirements due to e.g. a underlay promotion. On
// Windows, the root render pass' size is based on the |reshape_params_|.
DecideRenderPassAllocationsForFrame(*render_passes_in_draw_order);
// Draw all non-root render passes except for the root render pass.
total_pixels_rendered_this_frame_ = 0;
for (const auto& pass : *render_passes_in_draw_order) {
if (pass.get() == root_render_pass)
break;
DrawRenderPassAndExecuteCopyRequests(pass.get());
}
bool skip_drawing_root_render_pass =
current_frame()->root_damage_rect.IsEmpty() && use_partial_swap_ &&
!needs_full_frame_redraw;
// If partial swap is not used, and the frame can not be skipped, the whole
// frame has to be redrawn.
if (!use_partial_swap_ && !skip_drawing_root_render_pass)
needs_full_frame_redraw = true;
// If we need to redraw the frame, the whole output should be considered
// damaged.
if (needs_full_frame_redraw)
current_frame()->root_damage_rect = gfx::Rect(device_viewport_size);
if (!skip_drawing_root_render_pass) {
DrawRenderPassAndExecuteCopyRequests(root_render_pass);
}
// Displays 4k in size or greater are relatively common.
constexpr uint64_t kMaxPixelCount = 30'000'000;
constexpr uint64_t kMinPixelCount = 1;
constexpr uint64_t kNumBucketsPixelCount = 50;
UMA_HISTOGRAM_CUSTOM_COUNTS("Compositing.DirectRenderer.TotalPixelsRendered",
total_pixels_rendered_this_frame_, kMinPixelCount,
kMaxPixelCount, kNumBucketsPixelCount);
// Data focused on pixel counts closer to screen resolution sizes.
constexpr base::Histogram::Sample32 kHistogramScale = 100 * 1024;
constexpr uint64_t kNumberOfBucketsLinear = 100;
UMA_HISTOGRAM_SCALED_EXACT_LINEAR(
"Compositing.DirectRenderer.TotalPixelsRenderedNarrow",
total_pixels_rendered_this_frame_, 1, kNumberOfBucketsLinear + 1,
kHistogramScale);
DBG_LOG("direct.renderer.total_pixels", "Total Pixels: %" PRIu64,
total_pixels_rendered_this_frame_);
if (overlay_processor_)
overlay_processor_->TakeOverlayCandidates(¤t_frame()->overlay_list);
FinishDrawingFrame();
if (overlay_processor_)
overlay_processor_->ScheduleOverlays(resource_provider_);
// The current drawing frame is valid only during the duration of this
// function. Clear the pointers held inside to avoid holding dangling
// pointers.
current_frame()->render_passes_in_draw_order = nullptr;
current_frame()->root_render_pass = nullptr;
render_passes_in_draw_order->clear();
render_pass_filters_.clear();
render_pass_backdrop_filters_.clear();
render_pass_backdrop_filter_bounds_.clear();
render_pass_bypass_quads_.clear();
backdrop_filter_output_rects_.clear();
has_pixel_moving_foreground_filters_ = false;
current_frame_valid_ = false;
}
gfx::Rect DirectRenderer::GetCurrentFramebufferDamage() const {
return output_surface_->GetCurrentFramebufferDamage();
}
gfx::Rect DirectRenderer::GetTargetDamageBoundingRect() const {
return gfx::Rect();
}
gfx::Rect DirectRenderer::DeviceViewportRectInDrawSpace() const {
gfx::Rect device_viewport_size(current_frame()->device_viewport_size);
device_viewport_size +=
current_frame()->root_render_pass->output_rect.OffsetFromOrigin();
return device_viewport_size;
}
gfx::Rect DirectRenderer::OutputSurfaceRectInDrawSpace() const {
if (current_frame()->current_render_pass ==
current_frame()->root_render_pass) {
return DeviceViewportRectInDrawSpace();
} else {
return current_frame()->current_render_pass->output_rect;
}
}
bool DirectRenderer::ShouldSkipQuad(const DrawQuad& quad,
const gfx::Rect& render_pass_scissor) {
if (render_pass_scissor.IsEmpty())
return true;
gfx::Rect target_rect = quad.visible_rect;
auto* rpdq = quad.DynamicCast<AggregatedRenderPassDrawQuad>();
if (rpdq) {
// Render pass draw quads can have pixel-moving filters that expand their
// visible bounds.
auto filter_it = render_pass_filters_.find(rpdq->render_pass_id);
if (filter_it != render_pass_filters_.end()) {
target_rect =
GetExpandedRectForPixelMovingFilters(*rpdq, *filter_it->second);
}
}
target_rect = cc::MathUtil::MapEnclosingClippedRect(
quad.shared_quad_state->quad_to_target_transform, target_rect);
if (quad.shared_quad_state->clip_rect) {
target_rect.Intersect(*quad.shared_quad_state->clip_rect);
}
target_rect.Intersect(render_pass_scissor);
return target_rect.IsEmpty();
}
void DirectRenderer::SetScissorStateForQuad(
const DrawQuad& quad,
const gfx::Rect& render_pass_scissor,
bool use_render_pass_scissor) {
if (use_render_pass_scissor) {
gfx::Rect quad_scissor_rect = render_pass_scissor;
if (quad.shared_quad_state->clip_rect)
quad_scissor_rect.Intersect(*quad.shared_quad_state->clip_rect);
SetScissorTestRectInDrawSpace(quad_scissor_rect);
return;
} else if (quad.shared_quad_state->clip_rect) {
SetScissorTestRectInDrawSpace(*quad.shared_quad_state->clip_rect);
return;
}
EnsureScissorTestDisabled();
}
void DirectRenderer::SetScissorTestRectInDrawSpace(
const gfx::Rect& draw_space_rect) {
gfx::Rect window_space_rect = MoveFromDrawToWindowSpace(draw_space_rect);
SetScissorTestRect(window_space_rect);
}
void DirectRenderer::DoDrawPolygon(const DrawPolygon& poly,
const gfx::Rect& render_pass_scissor,
bool use_render_pass_scissor) {
SetScissorStateForQuad(*poly.original_ref(), render_pass_scissor,
use_render_pass_scissor);
// If the poly has not been split, then it is just a normal DrawQuad,
// and we should save any extra processing that would have to be done.
if (!poly.is_split()) {
DoDrawQuad(poly.original_ref(), nullptr);
return;
}
std::vector<gfx::QuadF> quads;
poly.ToQuads2D(&quads);
for (size_t i = 0; i < quads.size(); ++i) {
DoDrawQuad(poly.original_ref(), &quads[i]);
}
}
const cc::FilterOperations* DirectRenderer::FiltersForPass(
AggregatedRenderPassId render_pass_id) const {
auto it = render_pass_filters_.find(render_pass_id);
return it == render_pass_filters_.end() ? nullptr : it->second;
}
const cc::FilterOperations* DirectRenderer::BackdropFiltersForPass(
AggregatedRenderPassId render_pass_id) const {
auto it = render_pass_backdrop_filters_.find(render_pass_id);
return it == render_pass_backdrop_filters_.end() ? nullptr : it->second;
}
const std::optional<SkPath> DirectRenderer::BackdropFilterBoundsForPass(
AggregatedRenderPassId render_pass_id) const {
auto it = render_pass_backdrop_filter_bounds_.find(render_pass_id);
return it == render_pass_backdrop_filter_bounds_.end()
? std::optional<SkPath>()
: it->second;
}
bool DirectRenderer::SupportsBGRA() const {
// TODO(penghuang): check supported format correctly.
return true;
}
void DirectRenderer::FlushPolygons(
base::circular_deque<std::unique_ptr<DrawPolygon>>* poly_list,
const gfx::Rect& render_pass_scissor,
bool use_render_pass_scissor) {
if (poly_list->empty()) {
return;
}
BspTree bsp_tree(poly_list);
BspWalkActionDrawPolygon action_handler(this, render_pass_scissor,
use_render_pass_scissor);
bsp_tree.TraverseWithActionHandler(&action_handler);
DCHECK(poly_list->empty());
}
void DirectRenderer::DrawRenderPassAndExecuteCopyRequests(
AggregatedRenderPass* render_pass) {
base::AutoReset<raw_ptr<const AggregatedRenderPass>> current_render_pass(
¤t_frame()->current_render_pass, render_pass);
if (render_pass_bypass_quads_.find(render_pass->id) !=
render_pass_bypass_quads_.end()) {
return;
}
// Repeated draw to simulate a slower device for the evaluation of performance
// improvements in UI effects.
for (int i = 0; i < settings_->slow_down_compositing_scale_factor; ++i)
DrawRenderPass(render_pass);
for (auto& request : render_pass->copy_requests) {
// Finalize the source subrect (output_rect, result_bounds,
// sampling_bounds), as the entirety of the RenderPass's output optionally
// clamped to the requested copy area. Then, compute the result rect
// (result_selection), which is the selection clamped to the maximum
// possible result bounds. If there will be zero pixels of output or the
// scaling ratio was not reasonable, do not proceed.
gfx::Rect output_rect = render_pass->output_rect;
if (request->has_area())
output_rect.Intersect(request->area());
copy_output::RenderPassGeometry geometry;
geometry.result_bounds =
request->is_scaled() ? copy_output::ComputeResultRect(
gfx::Rect(output_rect.size()),
request->scale_from(), request->scale_to())
: gfx::Rect(output_rect.size());
// Result bounds may not satisfy the pixel format requirements for the
// CopyOutputRequest - we need to adjust them to something that will be
// compatible. Formats other than RGBA have this restriction.
geometry.result_selection =
request->result_format() == CopyOutputRequest::ResultFormat::RGBA
? geometry.result_bounds
: media::MinimallyShrinkRectForI420(geometry.result_bounds);
if (request->has_result_selection())
geometry.result_selection.Intersect(request->result_selection());
if (geometry.result_selection.IsEmpty())
continue;
geometry.sampling_bounds = MoveFromDrawToWindowSpace(output_rect);
geometry.readback_offset =
MoveFromDrawToWindowSpace(geometry.result_selection +
output_rect.OffsetFromOrigin())
.OffsetFromOrigin();
CopyDrawnRenderPass(geometry, std::move(request));
}
}
void DirectRenderer::AddInkDamageToRenderPass(
const AggregatedRenderPass* render_pass,
gfx::Rect& output_damage_rect) {
if (auto* ink_renderer =
GetDelegatedInkPointRenderer(/*create_if_necessary=*/false)) {
auto pass_id = ink_renderer->GetLatestMetadataRenderPassId();
// Apply damage rect to target render pass.
// If the targeted render pass changes or there's no target, it is still
// important to apply the new damage rect to the old render pass with
// delegated ink, so that the region with ink can be invalidated and the ink
// be cleared.
if (render_pass->id == pass_id ||
render_pass->id == last_pass_with_delegated_ink_) {
// Ink damage rect is in root target space, and will need to be
// transformed to the current render pass space.
gfx::Transform root_target_to_render_pass_draw_transform;
if (render_pass->transform_to_root_target.GetInverse(
&root_target_to_render_pass_draw_transform)) {
const gfx::Rect delegated_ink_damage_rect =
ink_renderer->GetDamageRect();
// Damage rect is initially in root space. Transform to render pass
// space, even for a root render pass.
gfx::Rect delegated_ink_damage_rect_in_draw_space =
root_target_to_render_pass_draw_transform.MapRect(
delegated_ink_damage_rect);
// Make sure the damage rect is not larger than the render pass output
// rect.
delegated_ink_damage_rect_in_draw_space.Intersect(
gfx::Rect(render_pass->output_rect));
output_damage_rect.Union(delegated_ink_damage_rect_in_draw_space);
}
}
last_pass_with_delegated_ink_ = pass_id;
}
}
void DirectRenderer::DrawRenderPass(const AggregatedRenderPass* render_pass) {
TRACE_EVENT1("viz", "DirectRenderer::DrawRenderPass", "NumberOfQuads",
render_pass->quad_list.size());
if (CanSkipRenderPass(render_pass)) {
skipped_render_pass_ids_.insert(render_pass->id);
return;
}
const gfx::Rect surface_rect_in_draw_space = OutputSurfaceRectInDrawSpace();
gfx::Rect render_pass_scissor_in_draw_space = surface_rect_in_draw_space;
const bool is_root_render_pass =
current_frame()->current_render_pass == current_frame()->root_render_pass;
if (use_partial_swap_) {
render_pass_scissor_in_draw_space.Intersect(
ComputeScissorRectForRenderPass(current_frame()->current_render_pass));
}
AddInkDamageToRenderPass(current_frame()->current_render_pass,
render_pass_scissor_in_draw_space);
if (is_root_render_pass && output_surface_clip_rect_) {
render_pass_scissor_in_draw_space.Intersect(*output_surface_clip_rect_);
}
if (!is_root_render_pass && render_pass_scissor_in_draw_space.IsEmpty()) {
// If the scissor rect is empty, we will end up skipping all the draw quads,
// so there is no work to do.
return;
}
EnsureRenderPassAllocated(render_pass);
// TODO(crbug.com/40454563): This change applies only when Vulkan is enabled
// and it will be removed once SkiaRenderer has complete support for Vulkan.
if (!is_root_render_pass && !IsRenderPassResourceAllocated(render_pass->id)) {
return;
}
total_pixels_rendered_this_frame_ +=
render_pass_scissor_in_draw_space.size().Area64();
const bool render_pass_is_clipped =
!render_pass_scissor_in_draw_space.Contains(surface_rect_in_draw_space);
const bool should_clear_surface =
!is_root_render_pass || settings_->should_clear_root_render_pass;
const gfx::Rect render_pass_update_rect = MoveFromDrawToWindowSpace(
render_pass_is_clipped ? render_pass_scissor_in_draw_space
: surface_rect_in_draw_space);
const gfx::Size viewport_size = is_root_render_pass
? current_frame()->device_viewport_size
: render_pass->output_rect.size();
current_frame()->target_to_device_transform =
CalculateTargetToDeviceTransform(
/*draw_rect=*/render_pass->output_rect, viewport_size);
BeginDrawingRenderPass(render_pass, should_clear_surface,
render_pass_update_rect, viewport_size);
if (is_root_render_pass)
last_root_render_pass_scissor_rect_ = render_pass_scissor_in_draw_space;
const QuadList& quad_list = render_pass->quad_list;
base::circular_deque<std::unique_ptr<DrawPolygon>> poly_list;
int next_polygon_id = 0;
int last_sorting_context_id = 0;
for (auto it = quad_list.BackToFrontBegin(); it != quad_list.BackToFrontEnd();
++it) {
const DrawQuad& quad = **it;
if (ShouldSkipQuad(quad, render_pass_is_clipped
? render_pass_scissor_in_draw_space
: surface_rect_in_draw_space)) {
continue;
}
if (last_sorting_context_id != quad.shared_quad_state->sorting_context_id) {
last_sorting_context_id = quad.shared_quad_state->sorting_context_id;
FlushPolygons(&poly_list, render_pass_scissor_in_draw_space,
render_pass_is_clipped);
}
// This layer is in a 3D sorting context so we add it to the list of
// polygons to go into the BSP tree.
if (quad.shared_quad_state->sorting_context_id != 0) {
// TODO(danakj): It's sad to do a malloc here to compare. Maybe construct
// this on the stack and move it into the list.
auto new_polygon = std::make_unique<DrawPolygon>(
*it, gfx::RectF(quad.visible_rect),
quad.shared_quad_state->quad_to_target_transform, next_polygon_id++);
if (new_polygon->normal().LengthSquared() > 0.0) {
poly_list.push_back(std::move(new_polygon));
}
continue;
}
// We are not in a 3d sorting context, so we should draw the quad normally.
SetScissorStateForQuad(quad, render_pass_scissor_in_draw_space,
render_pass_is_clipped);
DoDrawQuad(&quad, nullptr);
}
FlushPolygons(&poly_list, render_pass_scissor_in_draw_space,
render_pass_is_clipped);
FinishDrawingRenderPass();
if (!is_root_render_pass) {
const gfx::Rect drawn_rect = GetRenderPassBackingDrawnRect(render_pass->id);
constexpr char kDrawnRectAssignmentType[] =
"Compositing.DirectRenderer.DrawnRectAssignmentType";
if (drawn_rect != render_pass->output_rect) {
CHECK_EQ(render_pass->output_rect, render_pass_scissor_in_draw_space);
CHECK_EQ(surface_rect_in_draw_space, render_pass_scissor_in_draw_space);
CHECK(!render_pass_is_clipped);
if (render_pass->output_rect == render_pass->damage_rect) {
UMA_HISTOGRAM_ENUMERATION(kDrawnRectAssignmentType,
RenderPassDrawRectAssign::kFullDamage);
} else {
UMA_HISTOGRAM_ENUMERATION(kDrawnRectAssignmentType,
drawn_rect.IsEmpty()
? RenderPassDrawRectAssign::kNewOutputRect
: RenderPassDrawRectAssign::kReassign);
}
SetRenderPassBackingDrawnRect(render_pass->id, render_pass->output_rect);
} else {
UMA_HISTOGRAM_ENUMERATION(kDrawnRectAssignmentType,
RenderPassDrawRectAssign::kNoAssign);
}
}
}
bool DirectRenderer::CanSkipRenderPass(
const AggregatedRenderPass* render_pass) const {
if (render_pass == current_frame()->root_render_pass)
return false;
// If the RenderPass wants to be cached, then we only draw it if we need to.
// When damage is present, then we can't skip the RenderPass. Or if the
// texture does not exist (first frame, or was deleted) then we can't skip
// the RenderPass.
if (render_pass->cache_render_pass ||
allow_undamaged_nonroot_render_pass_to_skip_) {
// TODO(crbug.com/40232521): Fix CopyOutputRequest and allow the render pass
// with copy request to skip.
if (render_pass->has_damage_from_contributing_content ||
!render_pass->copy_requests.empty()) {
return false;
}
return IsRenderPassResourceAllocated(render_pass->id);
}
return false;
}
DirectRenderer::RenderPassRequirements
DirectRenderer::CalculateRenderPassRequirements(
const AggregatedRenderPass* render_pass) const {
const bool is_root = render_pass == current_frame()->root_render_pass;
RenderPassRequirements requirements;
#if BUILDFLAG(IS_WIN)
// All root render pass backings allocated by the renderer needs to eventually
// go into some composition tree. Other things that own/allocate the root pass
// backing include the output device and buffer queue.
requirements.is_scanout = is_root;
if (IsDelegatedCompositingSupportedAndEnabled(
output_surface_->capabilities().dc_support_level)) {
// Windows also can support scanout backings for non-root passes to optimize
// partially delegated compositing iff they will not be read in Viz.
requirements.is_scanout |= render_pass->is_from_surface_root_pass &&
!render_pass->will_backing_be_read_by_viz;
}
requirements.scanout_dcomp_surface =
requirements.is_scanout && render_pass->needs_synchronous_dcomp_commit;
#else
// On macOS the root render pass is handled by |BufferQueue| and
// RPDQ overlays are handled by |PrepareRenderPassOverlay|.
requirements.is_scanout = is_root;
#endif
if (is_root) {
requirements.size = surface_size_for_swap_buffers();
} else {
requirements.size = CalculateTextureSizeForRenderPass(render_pass);
}
if (requirements.is_scanout) {
CHECK(!render_pass->generate_mipmap);
requirements.generate_mipmap = false;
requirements.color_space = reshape_color_space();
requirements.format = reshape_si_format();
if (is_root) {
requirements.alpha_type = reshape_alpha_type();
} else {
requirements.alpha_type = render_pass->has_transparent_background
? RenderPassAlphaType::kPremul
: RenderPassAlphaType::kOpaque;
}
} else {
requirements.generate_mipmap = render_pass->generate_mipmap;
requirements.color_space = RenderPassColorSpace(render_pass);
requirements.format =
GetColorSpaceSharedImageFormat(requirements.color_space);
requirements.alpha_type = RenderPassAlphaType::kPremul;
}
if (render_pass->has_transparent_background) {
CHECK(requirements.format.HasAlpha());
CHECK_EQ(requirements.alpha_type, RenderPassAlphaType::kPremul);
}
return requirements;
}
gfx::ColorSpace DirectRenderer::RenderPassColorSpace(
const AggregatedRenderPass* render_pass) const {
const auto& display_color_spaces = current_frame()->display_color_spaces;
auto content_color_usage = render_pass->content_color_usage;
bool has_transparent_background = render_pass->has_transparent_background;
return render_pass == current_frame()->root_render_pass
? ColorSpaceUtils::OutputColorSpace(display_color_spaces,
content_color_usage,
has_transparent_background)
: ColorSpaceUtils::CompositingColorSpace(
display_color_spaces, content_color_usage,
has_transparent_background);
}
void DirectRenderer::EnsureRenderPassAllocated(
const AggregatedRenderPass* render_pass) {
const bool is_root = render_pass == current_frame()->root_render_pass;
if (is_root && !output_surface_->capabilities().renderer_allocates_images) {
return;
}
DirectRenderer::RenderPassRequirements requirements =
CalculateRenderPassRequirements(render_pass);
// We should not change the buffer size for the root render pass.
if (!is_root) {
requirements.size.Enlarge(enlarge_pass_texture_amount_.width(),
enlarge_pass_texture_amount_.height());
}
AllocateRenderPassResourceIfNeeded(render_pass->id, requirements);
}
gfx::Rect DirectRenderer::ComputeScissorRectForRenderPass(
const AggregatedRenderPass* render_pass) const {
const AggregatedRenderPass* root_render_pass =
current_frame()->root_render_pass;
gfx::Rect root_damage_rect = current_frame()->root_damage_rect;
// If |frame_buffer_damage|, which is carried over from the previous frame
// when we want to preserve buffer content, is not empty, we should add it
// to both root and non-root render passes.
gfx::Rect frame_buffer_damage = GetCurrentFramebufferDamage();
if (render_pass == root_render_pass) {
base::CheckedNumeric<int64_t> display_area =
current_frame()->device_viewport_size.GetCheckedArea();
base::CheckedNumeric<int64_t> root_damage_area =
root_damage_rect.size().GetCheckedArea();
if (display_area.IsValid() && root_damage_area.IsValid()) {
DCHECK_GT(static_cast<int64_t>(display_area.ValueOrDie()), 0);
{
base::CheckedNumeric<int64_t> frame_buffer_damage_area =
frame_buffer_damage.size().GetCheckedArea();
int64_t percentage = ((frame_buffer_damage_area * 100ll) / display_area)
.ValueOrDefault(INT_MAX);
UMA_HISTOGRAM_PERCENTAGE(
"Compositing.DirectRenderer.PartialSwap.FrameBufferDamage",
percentage);
}
{
int64_t percentage =
((root_damage_area * 100ll) / display_area).ValueOrDie();
UMA_HISTOGRAM_PERCENTAGE(
"Compositing.DirectRenderer.PartialSwap.RootDamage", percentage);
}
root_damage_rect.Union(frame_buffer_damage);
// If the root damage rect intersects any child render pass that has a
// pixel-moving backdrop filter, expand the damage to include the entire
// child pass. See crbug.com/986206 for context.
if ((!backdrop_filter_output_rects_.empty() ||
has_pixel_moving_foreground_filters_) &&
!root_damage_rect.IsEmpty()) {
for (auto* quad : root_render_pass->quad_list) {
// Sanity check: we should not have a Compositor
// CompositorRenderPassDrawQuad here.
DCHECK_NE(quad->material, DrawQuad::Material::kCompositorRenderPass);
if (auto* rpdq = quad->DynamicCast<AggregatedRenderPassDrawQuad>()) {
// For render pass with pixel moving backdrop filters.
if (auto iter =
backdrop_filter_output_rects_.find(rpdq->render_pass_id);
iter != backdrop_filter_output_rects_.end()) {
gfx::Rect this_output_rect = iter->second;
if (root_damage_rect.Intersects(this_output_rect))
root_damage_rect.Union(this_output_rect);
}
// For render pass with pixel moving foreground filters.
const cc::FilterOperations* foreground_filters =
FiltersForPass(rpdq->render_pass_id);
if (foreground_filters &&
foreground_filters->HasFilterThatMovesPixels()) {
gfx::Rect expanded_rect =
GetTargetExpandedRectForPixelMovingFilters(
*rpdq, *foreground_filters);
// Expanding damage outside of the 'clip_rect' can cause parts of
// the root to be rendered that may never have been included due
// to 'aggregate_only_damaged_' in SurfaceAggregator. See
// crbug.com/1492891
if (rpdq->shared_quad_state->clip_rect) {
expanded_rect.Intersect(*rpdq->shared_quad_state->clip_rect);
}
if (root_damage_rect.Intersects(expanded_rect))
root_damage_rect.Union(expanded_rect);
}
}
}
}
// Total damage after all adjustments.
base::CheckedNumeric<int64_t> total_damage_area =
root_damage_rect.size().GetCheckedArea();
{
int64_t percentage = ((total_damage_area * 100ll) / display_area)
.ValueOrDefault(INT_MAX);
UMA_HISTOGRAM_PERCENTAGE(
"Compositing.DirectRenderer.PartialSwap.TotalDamage", percentage);
}
{
int64_t percentage =
(((total_damage_area - root_damage_area) * 100ll) / display_area)
.ValueOrDefault(INT_MAX);
UMA_HISTOGRAM_PERCENTAGE(
"Compositing.DirectRenderer.PartialSwap.ExtraDamage", percentage);
}
}
return root_damage_rect;
}
DCHECK(render_pass->copy_requests.empty() ||
(render_pass->damage_rect == render_pass->output_rect));
if (GetRenderPassBackingDrawnRect(render_pass->id) ==
render_pass->output_rect) {
UMA_HISTOGRAM_BOOLEAN("Compositing.DirectRenderer.RenderPassDrawnRectMatch",
true);
return render_pass->damage_rect;
} else {
// This is the first time we are drawing to this backing but it might not
// be the first time we are drawing this render pass. If the render pass
// backing has been deallocated we must conservatively redraw the entire
// 'output_rect' as we have lost the accumulated damaged for this pass.
// TODO(crbug.com/332562242): We should move to better tracking of
// the drawn area by only fully drawing the visible portion of this render
// pass and not the entire output rect. This information is available in
// surface aggregator as root parent clip for render passes.
UMA_HISTOGRAM_BOOLEAN("Compositing.DirectRenderer.RenderPassDrawnRectMatch",
false);
return render_pass->output_rect;
}
}
gfx::Size DirectRenderer::CalculateTextureSizeForRenderPass(
const AggregatedRenderPass* render_pass) const {
// Round the size of the render pass backings to a multiple of 64 pixels. This
// reduces memory fragmentation. https://crbug.com/146070. This also allows
// backings to be more easily reused during a resize operation.
int width = render_pass->output_rect.width();
int height = render_pass->output_rect.height();
if (!settings_->dont_round_texture_sizes_for_pixel_tests) {
constexpr int multiple = 64;
width = cc::MathUtil::CheckedRoundUp(width, multiple);
height = cc::MathUtil::CheckedRoundUp(height, multiple);
// There are no guarantees that max texture size is a multiple of 64 so
// clamp the rounded up dimensions to avoid ending up with dimensions
// larger than max texture size. Note: Software surfaces and some
// test only surfaces does not have max_texture_size set so assume that
// we don't have to clamp the dimensions when max texture size is zero.
const int max_texture_size =
output_surface_->capabilities().max_texture_size;
if (max_texture_size > 0) {
width = std::min(max_texture_size, width);
height = std::min(max_texture_size, height);
}
}
return gfx::Size(width, height);
}
// TODO(fangzhoug): There should be metrics recording the amount of unused
// buffer area and number of reallocations to quantify the trade-off.
gfx::Size DirectRenderer::CalculateSizeForOutputSurface(
const gfx::Size& requested_viewport_size) {
// We're not able to clip back buffers if output surface does not support
// clipping.
if (requested_viewport_size == surface_size_for_swap_buffers() ||
!output_surface_->capabilities().supports_viewporter ||
settings_->dont_round_texture_sizes_for_pixel_tests) {
device_viewport_size_ = requested_viewport_size;
return requested_viewport_size;
}
// If 1 second has passed since last |device_viewport_size_| change, shrink
// OutputSurface size to |device_viewport_size_|.
if (device_viewport_size_ == requested_viewport_size &&
(base::TimeTicks::Now() - last_viewport_resize_time_) >=
base::Seconds(1)) {
return requested_viewport_size;
}
// Round the size of the output surface to a multiple of 256 pixels. This
// allows backings to be more easily reused during a resize operation.
const int request_width = requested_viewport_size.width();
const int request_height = requested_viewport_size.height();
int surface_width = surface_size_for_swap_buffers().width();
int surface_height = surface_size_for_swap_buffers().height();
constexpr int multiple = 256;
// If |request_width| or |request_height| is already a multiple of |multiple|,
// round up extra |multiple| pixels s.t. we always have some amount of
// padding.
if (request_width > surface_width)
surface_width =
cc::MathUtil::CheckedRoundUp(request_width + multiple - 1, multiple);
if (request_height > surface_height)
surface_height =
cc::MathUtil::CheckedRoundUp(request_height + multiple - 1, multiple);
if (requested_viewport_size != device_viewport_size_)
last_viewport_resize_time_ = base::TimeTicks::Now();
// Width & height mustn't be more than max texture size.
if (surface_width > output_surface_->capabilities().max_texture_size) {
auto old_width = surface_width;
surface_width = output_surface_->capabilities().max_texture_size;
LOG_IF(ERROR, surface_width < request_width)
<< "Reduced surface width from " << old_width << " to "
<< surface_width;
}
if (surface_height > output_surface_->capabilities().max_texture_size) {
auto old_height = surface_height;
surface_height = output_surface_->capabilities().max_texture_size;
LOG_IF(ERROR, surface_height < request_height)
<< "Reduced surface height from " << old_height << " to "
<< surface_height;
}
device_viewport_size_ = requested_viewport_size;
return gfx::Size(surface_width, surface_height);
}
void DirectRenderer::SetCurrentFrameForTesting(const DrawingFrame& frame) {
current_frame_valid_ = true;
current_frame_ = frame;
}
bool DirectRenderer::HasAllocatedResourcesForTesting(
const AggregatedRenderPassId& render_pass_id) const {
return IsRenderPassResourceAllocated(render_pass_id);
}
bool DirectRenderer::ShouldApplyRoundedCorner(const DrawQuad* quad) const {
const gfx::RectF target_quad = cc::MathUtil::MapClippedRect(
quad->shared_quad_state->quad_to_target_transform,
gfx::RectF(quad->visible_rect));
return QuadRoundedCornersBoundsIntersects(quad, target_quad);
}
float DirectRenderer::CurrentFrameSDRWhiteLevel() const {
return current_frame()->display_color_spaces.GetSDRMaxLuminanceNits();
}
bool DirectRenderer::ShouldApplyGradientMask(const DrawQuad* quad) const {
if (!quad->shared_quad_state->mask_filter_info.HasGradientMask())
return false;
return true;
}
SharedImageFormat DirectRenderer::GetColorSpaceSharedImageFormat(
gfx::ColorSpace color_space) const {
gpu::Capabilities caps;
caps.texture_format_bgra8888 = SupportsBGRA();
auto format = color_space.IsHDR()
? SinglePlaneFormat::kRGBA_F16
: PlatformColor::BestSupportedTextureFormat(caps);
return format;
}
DelegatedInkPointRendererBase* DirectRenderer::GetDelegatedInkPointRenderer(
bool create_if_necessary) {
return nullptr;
}
bool DirectRenderer::CompositeTimeTracingEnabled() {
return false;
}
void DirectRenderer::AddCompositeTimeTraces(base::TimeTicks ready_timestamp) {}
gfx::Rect DirectRenderer::GetDelegatedInkTrailDamageRect() {
if (auto* ink_renderer =
GetDelegatedInkPointRenderer(/*create_if_necessary=*/false)) {
return ink_renderer->GetDamageRect();
}
return gfx::Rect();
}
gpu::Mailbox DirectRenderer::GetPrimaryPlaneOverlayTestingMailbox() {
NOTREACHED();
}
} // namespace viz
|