191 lines
8.6 KiB
Plaintext
191 lines
8.6 KiB
Plaintext
/*
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* Copyright (C) 2005, 2006, 2007 Apple Inc. All rights reserved.
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* (C) 2007 Graham Dennis (graham.dennis@gmail.com)
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* (C) 2007 Eric Seidel <eric@webkit.org>
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. Neither the name of Apple Inc. ("Apple") nor the names of
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* its contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND ANY
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* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR ANY
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* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
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* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#import "config.h"
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#import "PixelDumpSupport.h"
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#import "PixelDumpSupportCG.h"
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#import "DumpRenderTree.h"
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#import "TestRunner.h"
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#import <CoreGraphics/CGBitmapContext.h>
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#import <QuartzCore/QuartzCore.h>
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#import <pal/spi/cg/CoreGraphicsSPI.h>
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#import <pal/spi/cocoa/QuartzCoreSPI.h>
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#import <wtf/Assertions.h>
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#import <wtf/RefPtr.h>
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#import <WebKit/WebCoreStatistics.h>
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#import <WebKit/WebDocumentPrivate.h>
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#import <WebKit/WebHTMLViewPrivate.h>
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#import <WebKit/WebViewPrivate.h>
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@interface WebView ()
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- (BOOL)_flushCompositingChanges;
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@end
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static void paintRepaintRectOverlay(WebView* webView, CGContextRef context)
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{
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CGRect viewRect = NSRectToCGRect([webView bounds]);
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CGContextSaveGState(context);
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// Using a transparency layer is easier than futzing with clipping.
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CGContextBeginTransparencyLayer(context, 0);
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// Flip the context.
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CGContextScaleCTM(context, 1, -1);
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CGContextTranslateCTM(context, 0, -viewRect.size.height);
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CGContextSetRGBFillColor(context, 0, 0, 0, static_cast<CGFloat>(0.66));
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CGContextFillRect(context, viewRect);
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NSArray *repaintRects = [webView trackedRepaintRects];
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if (repaintRects) {
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for (NSValue *value in repaintRects) {
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CGRect currRect = NSRectToCGRect([value rectValue]);
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CGContextClearRect(context, currRect);
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}
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}
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CGContextEndTransparencyLayer(context);
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CGContextRestoreGState(context);
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}
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static RetainPtr<CGImageRef> takeWindowSnapshot(CGSWindowID windowID, CGWindowImageOption imageOptions)
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{
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imageOptions |= kCGWindowImageBoundsIgnoreFraming | kCGWindowImageShouldBeOpaque;
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return adoptCF(CGWindowListCreateImage(CGRectNull, kCGWindowListOptionIncludingWindow, windowID, imageOptions));
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}
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RefPtr<BitmapContext> createBitmapContextFromWebView(bool onscreen, bool incrementalRepaint, bool sweepHorizontally, bool drawSelectionRect)
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{
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WebView* view = [mainFrame webView];
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// If the WebHTMLView uses accelerated compositing, we need for force the on-screen capture path
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// and also force Core Animation to start its animations with -display since the DRT window has autodisplay disabled.
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if ([view _isUsingAcceleratedCompositing])
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onscreen = YES;
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float deviceScaleFactor = [view _backingScaleFactor];
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NSSize webViewSize = [view frame].size;
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size_t pixelsWide = static_cast<size_t>(webViewSize.width * deviceScaleFactor);
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size_t pixelsHigh = static_cast<size_t>(webViewSize.height * deviceScaleFactor);
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size_t rowBytes = 0;
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void* buffer = nullptr;
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auto bitmapContext = createBitmapContext(pixelsWide, pixelsHigh, rowBytes, buffer);
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if (!bitmapContext)
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return nullptr;
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CGContextRef context = bitmapContext->cgContext();
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// The final scaling gets doubled on the screen capture surface when we use the hidpi backingScaleFactor value for CTM.
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// This is a workaround to push the scaling back.
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float scaleForCTM = onscreen ? 1 : [view _backingScaleFactor];
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CGContextScaleCTM(context, scaleForCTM, scaleForCTM);
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NSGraphicsContext *nsContext = [NSGraphicsContext graphicsContextWithGraphicsPort:context flipped:NO];
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ASSERT(nsContext);
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if (incrementalRepaint) {
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if (sweepHorizontally) {
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for (NSRect column = NSMakeRect(0, 0, 1, webViewSize.height); column.origin.x < webViewSize.width; column.origin.x++)
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[view displayRectIgnoringOpacity:column inContext:nsContext];
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} else {
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for (NSRect line = NSMakeRect(0, 0, webViewSize.width, 1); line.origin.y < webViewSize.height; line.origin.y++)
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[view displayRectIgnoringOpacity:line inContext:nsContext];
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}
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} else {
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if (onscreen) {
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// FIXME: This will break repaint testing if we have compositing in repaint tests.
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// (displayWebView() painted gray over the webview, but we'll be making everything repaint again).
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[view display];
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[view _flushCompositingChanges];
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[CATransaction flush];
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[CATransaction synchronize];
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// Ask the window server to provide us a composited version of the *real* window content including surfaces (i.e. OpenGL content)
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// Note that the returned image might differ very slightly from the window backing because of dithering artifacts in the window server compositor.
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NSWindow *window = [view window];
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auto image = takeWindowSnapshot([window windowNumber], kCGWindowImageDefault);
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if (image) {
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// Work around <rdar://problem/17084993>; re-request the snapshot at kCGWindowImageNominalResolution if it was captured at the wrong scale.
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CGFloat desiredSnapshotWidth = window.frame.size.width * deviceScaleFactor;
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if (CGImageGetWidth(image.get()) != desiredSnapshotWidth)
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image = takeWindowSnapshot([window windowNumber], kCGWindowImageNominalResolution);
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}
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if (!image)
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return nullptr;
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CGContextDrawImage(context, CGRectMake(0, 0, CGImageGetWidth(image.get()), CGImageGetHeight(image.get())), image.get());
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if ([view isTrackingRepaints])
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paintRepaintRectOverlay(view, context);
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} else {
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// Call displayRectIgnoringOpacity for HiDPI tests since it ensures we paint directly into the context
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// that we have appropriately sized and scaled.
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[view displayRectIgnoringOpacity:[view bounds] inContext:nsContext];
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if ([view isTrackingRepaints])
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paintRepaintRectOverlay(view, context);
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}
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}
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if (drawSelectionRect) {
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NSView *documentView = [[mainFrame frameView] documentView];
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ASSERT([documentView conformsToProtocol:@protocol(WebDocumentSelection)]);
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NSRect rect = [documentView convertRect:[(id <WebDocumentSelection>)documentView selectionRect] fromView:nil];
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CGContextSaveGState(context);
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CGContextSetLineWidth(context, 1.0);
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CGContextSetRGBStrokeColor(context, 1.0, 0.0, 0.0, 1.0);
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CGContextStrokeRect(context, CGRectMake(rect.origin.x, rect.origin.y, rect.size.width, rect.size.height));
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CGContextRestoreGState(context);
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}
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return bitmapContext;
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}
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RefPtr<BitmapContext> createPagedBitmapContext()
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{
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int pageWidthInPixels = TestRunner::viewWidth;
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int pageHeightInPixels = TestRunner::viewHeight;
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int numberOfPages = [mainFrame numberOfPagesWithPageWidth:pageWidthInPixels pageHeight:pageHeightInPixels];
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size_t rowBytes = 0;
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void* buffer = nullptr;
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int totalHeight = numberOfPages * (pageHeightInPixels + 1) - 1;
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auto bitmapContext = createBitmapContext(pageWidthInPixels, totalHeight, rowBytes, buffer);
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CGContextRef context = bitmapContext->cgContext();
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CGContextTranslateCTM(context, 0, totalHeight);
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CGContextScaleCTM(context, 1, -1);
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[mainFrame printToCGContext:context pageWidth:pageWidthInPixels pageHeight:pageHeightInPixels];
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return bitmapContext;
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}
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