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browser(webkit): fit screencast to frame if no scale is specified (#3707)

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Yury Semikhatsky 2020-09-01 12:04:46 -07:00 committed by GitHub
parent ef5c87ccea
commit fad840d88d
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2 changed files with 23 additions and 12 deletions
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4
browser_patches/webkit/BUILD_NUMBER
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@ -1,2 +1,2 @@
1335
Changed: aslushnikov@gmail.com Fri Aug 28 10:47:53 PDT 2020
1336
Changed: yurys@chromium.org Tue Sep 1 09:23:18 PDT 2020

31
browser_patches/webkit/patches/bootstrap.diff
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@ -8610,10 +8610,10 @@ index 0000000000000000000000000000000000000000..31a922667462de1a1edc24a10f25c064
+} // namespace WebKit
diff --git a/Source/WebKit/UIProcess/Inspector/Agents/ScreencastEncoder.cpp b/Source/WebKit/UIProcess/Inspector/Agents/ScreencastEncoder.cpp
new file mode 100644
index 0000000000000000000000000000000000000000..53a5cb8dd3fad3a38168397d9ead79c289cf5e11
index 0000000000000000000000000000000000000000..6cc90fc6576eeba03d9c6438b79ce4ca2af19db7
--- /dev/null
+++ b/Source/WebKit/UIProcess/Inspector/Agents/ScreencastEncoder.cpp
@@ -0,0 +1,380 @@
@@ -0,0 +1,387 @@
+/*
+ * Copyright (c) 2010, The WebM Project authors. All rights reserved.
+ * Copyright (c) 2013 The Chromium Authors. All rights reserved.
@ -8645,6 +8645,7 @@ index 0000000000000000000000000000000000000000..53a5cb8dd3fad3a38168397d9ead79c2
+#include "ScreencastEncoder.h"
+
+#include "WebMFileWriter.h"
+#include <algorithm>
+#include <libyuv.h>
+#include <vpx/vp8.h>
+#include <vpx/vp8cx.h>
@ -8957,6 +8958,12 @@ index 0000000000000000000000000000000000000000..53a5cb8dd3fad3a38168397d9ead79c2
+ if (m_scale) {
+ cairo_matrix_init_scale(&transform, *m_scale, *m_scale);
+ cairo_transform(cr.get(), &transform);
+ } else if (size.width() > m_size.width() || size.height() > m_size.height()) {
+ // If no scale is specified shrink to fit the frame.
+ double scale = std::min(static_cast<double>(m_size.width()) / size.width(),
+ static_cast<double>(m_size.height()) / size.height());
+ cairo_matrix_init_scale(&transform, scale, scale);
+ cairo_transform(cr.get(), &transform);
+ }
+
+ // Record top left part of the drawing area that fits into the frame.
@ -9772,10 +9779,10 @@ index f9c26832d3e91e8d747c5c1e0f0d76c34f4c3096..8b73efbba93362d8eebcc3a52158d8b0
} // namespace WebKit
diff --git a/Source/WebKit/UIProcess/Inspector/mac/ScreencastEncoderMac.mm b/Source/WebKit/UIProcess/Inspector/mac/ScreencastEncoderMac.mm
new file mode 100644
index 0000000000000000000000000000000000000000..76df8f6952c586fe2e0e10d620e8770a03b08ab0
index 0000000000000000000000000000000000000000..9b1e182c9f41a132df8c18b3655d52627b9d7686
--- /dev/null
+++ b/Source/WebKit/UIProcess/Inspector/mac/ScreencastEncoderMac.mm
@@ -0,0 +1,53 @@
@@ -0,0 +1,57 @@
+/*
+ * Copyright (C) 2020 Microsoft Corporation.
+ *
@ -9804,6 +9811,7 @@ index 0000000000000000000000000000000000000000..76df8f6952c586fe2e0e10d620e8770a
+#include "config.h"
+#include "ScreencastEncoder.h"
+
+#include <algorithm>
+#include <CoreGraphics/CoreGraphics.h>
+#include <wtf/RetainPtr.h>
+
@ -9816,15 +9824,18 @@ index 0000000000000000000000000000000000000000..76df8f6952c586fe2e0e10d620e8770a
+ size_t bytesPerRow = bytesPerPixel * width;
+ RetainPtr<CGColorSpaceRef> colorSpace = adoptCF(CGColorSpaceCreateDeviceRGB());
+ RetainPtr<CGContextRef> context = adoptCF(CGBitmapContextCreate(argb_data, width, height, bitsPerComponent, bytesPerRow, colorSpace.get(), kCGImageAlphaNoneSkipFirst | kCGBitmapByteOrder32Little));
+ double imageWidth = CGImageGetWidth(image);
+ double imageHeight = CGImageGetHeight(image);
+ double ratio = 1;
+ if (scale) {
+ CGContextScaleCTM(context.get(), *scale, *scale);
+ // Ensure that top-left cornder stays in place.
+ CGContextTranslateCTM(context.get(), 0, ((1 - *scale) / *scale) * height);
+ ratio = *scale;
+ } else if (imageWidth > width || imageHeight > height) {
+ ratio = std::min(width / imageWidth, height / imageHeight);
+ }
+ size_t imageWidth = CGImageGetWidth(image);
+ size_t imageHeight = CGImageGetHeight(image);
+ imageWidth *= ratio;
+ imageHeight *= ratio;
+ // TODO: exclude controls from original screenshot
+ CGFloat pageHeight = static_cast<CGFloat>(imageHeight) - offsetTop;
+ CGFloat pageHeight = static_cast<CGFloat>(imageHeight) - offsetTop * ratio;
+ CGContextDrawImage(context.get(), CGRectMake(0, height - pageHeight, imageWidth, imageHeight), image);
+}
+