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Side by Side Diff: third_party/WebKit/Source/core/html/HTMLCanvasElement.cpp

Issue 2589143003: Add 'get' prefix for Settings.in generated code. (Closed)
Patch Set: Capitalize the prefix. Created 3 years, 12 months ago
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1 /* 1 /*
2 * Copyright (C) 2004, 2006, 2007 Apple Inc. All rights reserved. 2 * Copyright (C) 2004, 2006, 2007 Apple Inc. All rights reserved.
3 * Copyright (C) 2007 Alp Toker <alp@atoker.com> 3 * Copyright (C) 2007 Alp Toker <alp@atoker.com>
4 * Copyright (C) 2010 Torch Mobile (Beijing) Co. Ltd. All rights reserved. 4 * Copyright (C) 2010 Torch Mobile (Beijing) Co. Ltd. All rights reserved.
5 * 5 *
6 * Redistribution and use in source and binary forms, with or without 6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions 7 * modification, are permitted provided that the following conditions
8 * are met: 8 * are met:
9 * 1. Redistributions of source code must retain the above copyright 9 * 1. Redistributions of source code must retain the above copyright
10 * notice, this list of conditions and the following disclaimer. 10 * notice, this list of conditions and the following disclaimer.
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775 void HTMLCanvasElement::removeListener(CanvasDrawListener* listener) { 775 void HTMLCanvasElement::removeListener(CanvasDrawListener* listener) {
776 m_listeners.remove(listener); 776 m_listeners.remove(listener);
777 } 777 }
778 778
779 SecurityOrigin* HTMLCanvasElement::getSecurityOrigin() const { 779 SecurityOrigin* HTMLCanvasElement::getSecurityOrigin() const {
780 return document().getSecurityOrigin(); 780 return document().getSecurityOrigin();
781 } 781 }
782 782
783 bool HTMLCanvasElement::originClean() const { 783 bool HTMLCanvasElement::originClean() const {
784 if (document().settings() && 784 if (document().settings() &&
785 document().settings()->disableReadingFromCanvas()) 785 document().settings()->GetDisableReadingFromCanvas())
786 return false; 786 return false;
787 if (placeholderFrame()) 787 if (placeholderFrame())
788 return placeholderFrame()->originClean(); 788 return placeholderFrame()->originClean();
789 return m_originClean; 789 return m_originClean;
790 } 790 }
791 791
792 bool HTMLCanvasElement::shouldAccelerate(const IntSize& size) const { 792 bool HTMLCanvasElement::shouldAccelerate(const IntSize& size) const {
793 if (m_context && !m_context->is2d()) 793 if (m_context && !m_context->is2d())
794 return false; 794 return false;
795 795
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823 #endif 823 #endif
824 // If the GPU resources would be very expensive, prefer a display list. 824 // If the GPU resources would be very expensive, prefer a display list.
825 if (canvasPixelCount > ExpensiveCanvasHeuristicParameters:: 825 if (canvasPixelCount > ExpensiveCanvasHeuristicParameters::
826 PreferDisplayListOverGpuSizeThreshold) 826 PreferDisplayListOverGpuSizeThreshold)
827 return false; 827 return false;
828 } 828 }
829 829
830 // Do not use acceleration for small canvas. 830 // Do not use acceleration for small canvas.
831 Settings* settings = document().settings(); 831 Settings* settings = document().settings();
832 if (!settings || 832 if (!settings ||
833 canvasPixelCount < settings->minimumAccelerated2dCanvasSize()) 833 canvasPixelCount < settings->GetMinimumAccelerated2dCanvasSize())
834 return false; 834 return false;
835 835
836 // When GPU allocated memory runs low (due to having created too many 836 // When GPU allocated memory runs low (due to having created too many
837 // accelerated canvases), the compositor starves and browser becomes laggy. 837 // accelerated canvases), the compositor starves and browser becomes laggy.
838 // Thus, we should stop allocating more GPU memory to new canvases created 838 // Thus, we should stop allocating more GPU memory to new canvases created
839 // when the current memory usage exceeds the threshold. 839 // when the current memory usage exceeds the threshold.
840 if (ImageBuffer::getGlobalGPUMemoryUsage() >= MaxGlobalGPUMemoryUsage) 840 if (ImageBuffer::getGlobalGPUMemoryUsage() >= MaxGlobalGPUMemoryUsage)
841 return false; 841 return false;
842 842
843 // Allocating too many GPU resources can makes us run into the driver's 843 // Allocating too many GPU resources can makes us run into the driver's
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898 } 898 }
899 899
900 std::unique_ptr<ImageBufferSurface> 900 std::unique_ptr<ImageBufferSurface>
901 HTMLCanvasElement::createAcceleratedImageBufferSurface( 901 HTMLCanvasElement::createAcceleratedImageBufferSurface(
902 const IntSize& deviceSize, 902 const IntSize& deviceSize,
903 OpacityMode opacityMode, 903 OpacityMode opacityMode,
904 int* msaaSampleCount) { 904 int* msaaSampleCount) {
905 if (!shouldAccelerate(deviceSize)) 905 if (!shouldAccelerate(deviceSize))
906 return nullptr; 906 return nullptr;
907 907
908 if (document().settings()) 908 if (document().settings()) {
909 *msaaSampleCount = 909 *msaaSampleCount =
910 document().settings()->accelerated2dCanvasMSAASampleCount(); 910 document().settings()->GetAccelerated2dCanvasMSAASampleCount();
911 }
911 912
912 // Avoid creating |contextProvider| until we're sure we want to try use it, 913 // Avoid creating |contextProvider| until we're sure we want to try use it,
913 // since it costs us GPU memory. 914 // since it costs us GPU memory.
914 std::unique_ptr<WebGraphicsContext3DProvider> contextProvider( 915 std::unique_ptr<WebGraphicsContext3DProvider> contextProvider(
915 Platform::current()->createSharedOffscreenGraphicsContext3DProvider()); 916 Platform::current()->createSharedOffscreenGraphicsContext3DProvider());
916 if (!contextProvider) { 917 if (!contextProvider) {
917 CanvasMetrics::countCanvasContextUsage( 918 CanvasMetrics::countCanvasContextUsage(
918 CanvasMetrics::Accelerated2DCanvasGPUContextLost); 919 CanvasMetrics::Accelerated2DCanvasGPUContextLost);
919 return nullptr; 920 return nullptr;
920 } 921 }
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1018 // Early out for WebGL canvases 1019 // Early out for WebGL canvases
1019 return; 1020 return;
1020 } 1021 }
1021 1022
1022 m_imageBuffer->setClient(this); 1023 m_imageBuffer->setClient(this);
1023 // Enabling MSAA overrides a request to disable antialiasing. This is true 1024 // Enabling MSAA overrides a request to disable antialiasing. This is true
1024 // regardless of whether the rendering mode is accelerated or not. For 1025 // regardless of whether the rendering mode is accelerated or not. For
1025 // consistency, we don't want to apply AA in accelerated canvases but not in 1026 // consistency, we don't want to apply AA in accelerated canvases but not in
1026 // unaccelerated canvases. 1027 // unaccelerated canvases.
1027 if (!msaaSampleCount && document().settings() && 1028 if (!msaaSampleCount && document().settings() &&
1028 !document().settings()->antialiased2dCanvasEnabled()) 1029 !document().settings()->GetAntialiased2dCanvasEnabled())
1029 m_context->setShouldAntialias(false); 1030 m_context->setShouldAntialias(false);
1030 1031
1031 if (m_context) 1032 if (m_context)
1032 setNeedsCompositingUpdate(); 1033 setNeedsCompositingUpdate();
1033 } 1034 }
1034 1035
1035 void HTMLCanvasElement::notifySurfaceInvalid() { 1036 void HTMLCanvasElement::notifySurfaceInvalid() {
1036 if (m_context && m_context->is2d()) 1037 if (m_context && m_context->is2d())
1037 m_context->loseContext(CanvasRenderingContext::RealLostContext); 1038 m_context->loseContext(CanvasRenderingContext::RealLostContext);
1038 } 1039 }
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1406 m_surfaceLayerBridge = WTF::wrapUnique(new CanvasSurfaceLayerBridge(this)); 1407 m_surfaceLayerBridge = WTF::wrapUnique(new CanvasSurfaceLayerBridge(this));
1407 // Creates a placeholder layer first before Surface is created. 1408 // Creates a placeholder layer first before Surface is created.
1408 m_surfaceLayerBridge->createSolidColorLayer(); 1409 m_surfaceLayerBridge->createSolidColorLayer();
1409 } 1410 }
1410 1411
1411 void HTMLCanvasElement::OnWebLayerReplaced() { 1412 void HTMLCanvasElement::OnWebLayerReplaced() {
1412 setNeedsCompositingUpdate(); 1413 setNeedsCompositingUpdate();
1413 } 1414 }
1414 1415
1415 } // namespace blink 1416 } // namespace blink
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