/* * Copyright (C) 2004, 2006, 2007 Apple Inc. All rights reserved. * Copyright (C) 2007 Alp Toker <[email protected]> * Copyright (C) 2010 Torch Mobile (Beijing) Co. Ltd. All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE COMPUTER, INC. OR * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ #include "third_party/blink/renderer/core/html/canvas/html_canvas_element.h" #include <math.h> #include <limits> #include <memory> #include <utility> #include "base/feature_list.h" #include "base/functional/callback_helpers.h" #include "base/location.h" #include "base/metrics/histogram_macros.h" #include "base/numerics/checked_math.h" #include "base/numerics/safe_conversions.h" #include "base/trace_event/trace_event.h" #include "base/trace_event/typed_macros.h" #include "build/build_config.h" #include "services/metrics/public/cpp/ukm_recorder.h" #include "services/metrics/public/cpp/ukm_source_id.h" #include "third_party/blink/public/common/features.h" #include "third_party/blink/public/common/privacy_budget/identifiability_metric_builder.h" #include "third_party/blink/public/common/privacy_budget/identifiability_metrics.h" #include "third_party/blink/public/common/privacy_budget/identifiability_study_settings.h" #include "third_party/blink/public/common/privacy_budget/identifiable_surface.h" #include "third_party/blink/public/common/thread_safe_browser_interface_broker_proxy.h" #include "third_party/blink/public/mojom/gpu/gpu.mojom-blink.h" #include "third_party/blink/public/platform/platform.h" #include "third_party/blink/public/platform/task_type.h" #include "third_party/blink/public/resources/grit/blink_image_resources.h" #include "third_party/blink/renderer/bindings/core/v8/script_controller.h" #include "third_party/blink/renderer/bindings/core/v8/v8_image_bitmap_options.h" #include "third_party/blink/renderer/bindings/core/v8/v8_image_encode_options.h" #include "third_party/blink/renderer/core/css/css_font_selector.h" #include "third_party/blink/renderer/core/css/style_engine.h" #include "third_party/blink/renderer/core/dom/document.h" #include "third_party/blink/renderer/core/dom/dom_node_ids.h" #include "third_party/blink/renderer/core/dom/element.h" #include "third_party/blink/renderer/core/dom/element_traversal.h" #include "third_party/blink/renderer/core/dom/node_computed_style.h" #include "third_party/blink/renderer/core/fileapi/file.h" #include "third_party/blink/renderer/core/frame/local_dom_window.h" #include "third_party/blink/renderer/core/frame/local_frame.h" #include "third_party/blink/renderer/core/frame/local_frame_client.h" #include "third_party/blink/renderer/core/frame/settings.h" #include "third_party/blink/renderer/core/frame/web_feature.h" #include "third_party/blink/renderer/core/html/canvas/canvas_async_blob_creator.h" #include "third_party/blink/renderer/core/html/canvas/canvas_context_creation_attributes_core.h" #include "third_party/blink/renderer/core/html/canvas/canvas_draw_listener.h" #include "third_party/blink/renderer/core/html/canvas/canvas_font_cache.h" #include "third_party/blink/renderer/core/html/canvas/canvas_rendering_context.h" #include "third_party/blink/renderer/core/html/canvas/canvas_rendering_context_factory.h" #include "third_party/blink/renderer/core/html/canvas/canvas_resource_tracker.h" #include "third_party/blink/renderer/core/html/canvas/image_data.h" #include "third_party/blink/renderer/core/html/canvas/predefined_color_space.h" #include "third_party/blink/renderer/core/html/forms/html_input_element.h" #include "third_party/blink/renderer/core/html/forms/html_select_element.h" #include "third_party/blink/renderer/core/html/html_image_element.h" #include "third_party/blink/renderer/core/html/parser/html_parser_idioms.h" #include "third_party/blink/renderer/core/html_names.h" #include "third_party/blink/renderer/core/imagebitmap/image_bitmap.h" #include "third_party/blink/renderer/core/input_type_names.h" #include "third_party/blink/renderer/core/inspector/console_message.h" #include "third_party/blink/renderer/core/layout/hit_test_canvas_result.h" #include "third_party/blink/renderer/core/layout/layout_html_canvas.h" #include "third_party/blink/renderer/core/layout/layout_view.h" #include "third_party/blink/renderer/core/page/chrome_client.h" #include "third_party/blink/renderer/core/page/page.h" #include "third_party/blink/renderer/core/page/page_animator.h" #include "third_party/blink/renderer/core/paint/paint_auto_dark_mode.h" #include "third_party/blink/renderer/core/paint/paint_layer.h" #include "third_party/blink/renderer/core/probe/core_probes.h" #include "third_party/blink/renderer/platform/bindings/exception_state.h" #include "third_party/blink/renderer/platform/graphics/canvas_2d_layer_bridge.h" #include "third_party/blink/renderer/platform/graphics/canvas_resource_dispatcher.h" #include "third_party/blink/renderer/platform/graphics/canvas_resource_provider.h" #include "third_party/blink/renderer/platform/graphics/gpu/shared_gpu_context.h" #include "third_party/blink/renderer/platform/graphics/graphics_context.h" #include "third_party/blink/renderer/platform/graphics/image_data_buffer.h" #include "third_party/blink/renderer/platform/graphics/memory_managed_paint_recorder.h" #include "third_party/blink/renderer/platform/graphics/paint/paint_canvas.h" #include "third_party/blink/renderer/platform/graphics/static_bitmap_image_to_video_frame_copier.h" #include "third_party/blink/renderer/platform/graphics/web_graphics_context_3d_video_frame_pool.h" #include "third_party/blink/renderer/platform/heap/thread_state.h" #include "third_party/blink/renderer/platform/image-encoders/image_encoder_utils.h" #include "third_party/blink/renderer/platform/instrumentation/use_counter.h" #include "third_party/blink/renderer/platform/privacy_budget/identifiability_digest_helpers.h" #include "third_party/blink/renderer/platform/runtime_enabled_features.h" #include "ui/base/resource/resource_scale_factor.h" #include "ui/gfx/geometry/rect_conversions.h" #include "ui/gfx/geometry/skia_conversions.h" #include "v8/include/v8.h" namespace blink { namespace { // These two constants determine if a newly created canvas starts with // acceleration disabled. Specifically: // 1. More than `kDisableAccelerationThreshold` canvases have been created. // 2. The percent of canvases with acceleration disabled is >= // `kDisableAccelerationPercent`. constexpr unsigned kDisableAccelerationThreshold = …; constexpr unsigned kDisableAccelerationPercent = …; BASE_FEATURE(…); // Kill switch for not requesting continuous begin frame for low latency canvas. BASE_FEATURE(…); // These values come from the WhatWG spec. constexpr int kDefaultCanvasWidth = …; constexpr int kDefaultCanvasHeight = …; // A default value of quality argument for toDataURL and toBlob // It is in an invalid range (outside 0.0 - 1.0) so that it will not be // misinterpreted as a user-input value constexpr int kUndefinedQualityValue = …; constexpr int kMinimumAccelerated2dCanvasSize = …; // A default size used for canvas memory allocation when canvas size is greater // than 2^20. constexpr uint32_t kMaximumCanvasSize = …; // Tracks whether canvases should start out with acceleration disabled. class DisabledAccelerationCounterSupplement final : public GarbageCollected<DisabledAccelerationCounterSupplement>, public Supplement<Document> { … }; // static const char DisabledAccelerationCounterSupplement::kSupplementName[] = …; } // namespace HTMLCanvasElement::HTMLCanvasElement(Document& document) : … { … } HTMLCanvasElement::~HTMLCanvasElement() { … } void HTMLCanvasElement::Dispose() { … } void HTMLCanvasElement::ColorSchemeMayHaveChanged() { … } void HTMLCanvasElement::ParseAttribute( const AttributeModificationParams& params) { … } LayoutObject* HTMLCanvasElement::CreateLayoutObject( const ComputedStyle& style) { … } Node::InsertionNotificationRequest HTMLCanvasElement::InsertedInto( ContainerNode& node) { … } bool HTMLCanvasElement::SizeChangesAreAllowed(ExceptionState& exception_state) { … } void HTMLCanvasElement::setHeight(unsigned value, ExceptionState& exception_state) { … } void HTMLCanvasElement::setWidth(unsigned value, ExceptionState& exception_state) { … } void HTMLCanvasElement::SetSize(gfx::Size new_size) { … } HTMLCanvasElement::ContextFactoryVector& HTMLCanvasElement::RenderingContextFactories() { … } CanvasRenderingContextFactory* HTMLCanvasElement::GetRenderingContextFactory( int rendering_api) { … } void HTMLCanvasElement::RegisterRenderingContextFactory( std::unique_ptr<CanvasRenderingContextFactory> rendering_context_factory) { … } void HTMLCanvasElement::RecordIdentifiabilityMetric( IdentifiableSurface surface, IdentifiableToken value) const { … } void HTMLCanvasElement::IdentifiabilityReportWithDigest( IdentifiableToken canvas_contents_token) const { … } CanvasRenderingContext* HTMLCanvasElement::GetCanvasRenderingContext( const String& type, const CanvasContextCreationAttributesCore& attributes) { … } bool HTMLCanvasElement::IsPageVisible() { … } CanvasRenderingContext* HTMLCanvasElement::GetCanvasRenderingContextInternal( const String& type, const CanvasContextCreationAttributesCore& attributes) { … } void HTMLCanvasElement::configureHighDynamicRange( const CanvasHighDynamicRangeOptions* options, ExceptionState& exception_state) { … } bool HTMLCanvasElement::ShouldBeDirectComposited() const { … } Settings* HTMLCanvasElement::GetSettings() const { … } bool HTMLCanvasElement::IsWebGL1Enabled() const { … } bool HTMLCanvasElement::IsWebGL2Enabled() const { … } bool HTMLCanvasElement::IsWebGLBlocked() const { … } void HTMLCanvasElement::SetContextCreationWasBlocked() { … } void HTMLCanvasElement::DidDraw(const SkIRect& rect) { … } void HTMLCanvasElement::PreFinalizeFrame() { … } void HTMLCanvasElement::PostFinalizeFrame(FlushReason reason) { … } void HTMLCanvasElement::DisableAcceleration( std::unique_ptr<CanvasResourceProvider> new_provider_for_testing) { … } void HTMLCanvasElement::SetNeedsCompositingUpdate() { … } void HTMLCanvasElement::DoDeferredPaintInvalidation() { … } void HTMLCanvasElement::Reset() { … } bool HTMLCanvasElement::PaintsIntoCanvasBuffer() const { … } void HTMLCanvasElement::NotifyListenersCanvasChanged() { … } // Returns an image and the image's resolution scale factor. std::pair<blink::Image*, float> HTMLCanvasElement::BrokenCanvas( float device_scale_factor) { … } bool HTMLCanvasElement::LowLatencyEnabled() const { … } void HTMLCanvasElement::SetFilterQuality( cc::PaintFlags::FilterQuality filter_quality) { … } // In some instances we don't actually want to paint to the parent layer // We still might want to set filter quality and MarkFirstContentfulPaint though void HTMLCanvasElement::Paint(GraphicsContext& context, const PhysicalRect& r, bool flatten_composited_layers) { … } void HTMLCanvasElement::PaintInternal(GraphicsContext& context, const PhysicalRect& r) { … } bool HTMLCanvasElement::IsPrinting() const { … } UkmParameters HTMLCanvasElement::GetUkmParameters() { … } void HTMLCanvasElement::SetSurfaceSize(gfx::Size size) { … } const AtomicString HTMLCanvasElement::ImageSourceURL() const { … } scoped_refptr<StaticBitmapImage> HTMLCanvasElement::Snapshot( FlushReason reason, SourceDrawingBuffer source_buffer) const { … } String HTMLCanvasElement::ToDataURLInternal( const String& mime_type, const double& quality, SourceDrawingBuffer source_buffer) const { … } String HTMLCanvasElement::toDataURL(const String& mime_type, const ScriptValue& quality_argument, ExceptionState& exception_state) const { … } void HTMLCanvasElement::toBlob(V8BlobCallback* callback, const String& mime_type, const ScriptValue& quality_argument, ExceptionState& exception_state) { … } bool HTMLCanvasElement::IsPresentationAttribute( const QualifiedName& name) const { … } void HTMLCanvasElement::CollectStyleForPresentationAttribute( const QualifiedName& name, const AtomicString& value, MutableCSSPropertyValueSet* style) { … } void HTMLCanvasElement::AddListener(CanvasDrawListener* listener) { … } void HTMLCanvasElement::RemoveListener(CanvasDrawListener* listener) { … } bool HTMLCanvasElement::OriginClean() const { … } bool HTMLCanvasElement::ShouldAccelerate2dContext() const { … } CanvasResourceDispatcher* HTMLCanvasElement::GetOrCreateResourceDispatcher() { … } bool HTMLCanvasElement::PushFrame(scoped_refptr<CanvasResource>&& image, const SkIRect& damage_rect) { … } bool HTMLCanvasElement::ShouldAccelerate() const { … } bool HTMLCanvasElement::ShouldDisableAccelerationBecauseOfReadback() const { … } std::unique_ptr<Canvas2DLayerBridge> HTMLCanvasElement::Create2DLayerBridge() { … } void HTMLCanvasElement::SetCanvas2DLayerBridgeInternal( std::unique_ptr<Canvas2DLayerBridge> external_canvas2d_bridge) { … } void HTMLCanvasElement::NotifyGpuContextLost() { … } void HTMLCanvasElement::Trace(Visitor* visitor) const { … } Canvas2DLayerBridge* HTMLCanvasElement::GetOrCreateCanvas2DLayerBridge() { … } void HTMLCanvasElement::SetResourceProviderForTesting( std::unique_ptr<CanvasResourceProvider> provider, std::unique_ptr<Canvas2DLayerBridge> bridge, const gfx::Size& size) { … } void HTMLCanvasElement::DiscardResourceProvider() { … } void HTMLCanvasElement::UpdateSuspendOffscreenCanvasAnimation() { … } void HTMLCanvasElement::PageVisibilityChanged() { … } void HTMLCanvasElement::ContextDestroyed() { … } bool HTMLCanvasElement::StyleChangeNeedsDidDraw( const ComputedStyle* old_style, const ComputedStyle& new_style) { … } void HTMLCanvasElement::StyleDidChange(const ComputedStyle* old_style, const ComputedStyle& new_style) { … } void HTMLCanvasElement::LayoutObjectDestroyed() { … } void HTMLCanvasElement::DidMoveToNewDocument(Document& old_document) { … } void HTMLCanvasElement::DidRecalcStyle(const StyleRecalcChange change) { … } void HTMLCanvasElement::RemovedFrom(ContainerNode& insertion_point) { … } void HTMLCanvasElement::WillDrawImageTo2DContext(CanvasImageSource* source) { … } bool HTMLCanvasElement::EnableAcceleration() { … } bool HTMLCanvasElement::RecreateCanvasInGPURasterMode() { … } scoped_refptr<Image> HTMLCanvasElement::GetSourceImageForCanvas( FlushReason reason, SourceImageStatus* status, const gfx::SizeF&, const AlphaDisposition alpha_disposition) { … } scoped_refptr<StaticBitmapImage> HTMLCanvasElement::GetSourceImageForCanvasInternal( FlushReason reason, SourceImageStatus* status, const AlphaDisposition alpha_disposition) { … } bool HTMLCanvasElement::WouldTaintOrigin() const { … } gfx::SizeF HTMLCanvasElement::ElementSize( const gfx::SizeF&, const RespectImageOrientationEnum) const { … } gfx::Size HTMLCanvasElement::BitmapSourceSize() const { … } ScriptPromise<ImageBitmap> HTMLCanvasElement::CreateImageBitmap( ScriptState* script_state, std::optional<gfx::Rect> crop_rect, const ImageBitmapOptions* options, ExceptionState& exception_state) { … } void HTMLCanvasElement::SetOffscreenCanvasResource( scoped_refptr<CanvasResource>&& image, viz::ResourceId resource_id) { … } bool HTMLCanvasElement::IsOpaque() const { … } bool HTMLCanvasElement::CreateLayer() { … } void HTMLCanvasElement::OnWebLayerUpdated() { … } void HTMLCanvasElement::RegisterContentsLayer(cc::Layer* layer) { … } void HTMLCanvasElement::UnregisterContentsLayer(cc::Layer* layer) { … } FontSelector* HTMLCanvasElement::GetFontSelector() { … } void HTMLCanvasElement::UpdateMemoryUsage() { … } size_t HTMLCanvasElement::GetMemoryUsage() const { … } void HTMLCanvasElement::ReplaceExisting2dLayerBridge( std::unique_ptr<Canvas2DLayerBridge> new_layer_bridge, std::unique_ptr<CanvasResourceProvider> new_provider_for_testing) { … } CanvasResourceProvider* HTMLCanvasElement::GetOrCreateCanvasResourceProvider( RasterModeHint hint) { … } scoped_refptr<StaticBitmapImage> HTMLCanvasElement::GetTransparentImage() { … } cc::Layer* HTMLCanvasElement::ContentsCcLayer() const { … } RespectImageOrientationEnum HTMLCanvasElement::RespectImageOrientation() const { … } // Temporary plumbing bool HTMLCanvasElement::IsHibernating() const { … } bool HTMLCanvasElement::IsAccelerated() const { … } } // namespace blink
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