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[SVGThumbnail]Optimize CPU usage (#28286)

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* [SVG Thumbnail] Optimize CPU usage

* add missing zero
This commit is contained in:
Andrey Nekrasov
2023-09-07 17:06:49 +02:00
committed by GitHub
parent 4d95adc6fc
commit 16e105106b
4 changed files with 276 additions and 79 deletions
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94
src/modules/previewpane/UnitTests-SvgThumbnailProvider/SvgThumbnailProviderTests.cs
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@@ -28,7 +28,9 @@ namespace SvgThumbnailProviderUnitTests
svgBuilder.AppendLine("</svg>");
SvgThumbnailProvider svgThumbnailProvider = new SvgThumbnailProvider(null);
Bitmap thumbnail = svgThumbnailProvider.GetThumbnail(svgBuilder.ToString(), 256);
svgThumbnailProvider.SvgContents = svgBuilder.ToString();
svgThumbnailProvider.SvgContentsReady.Set();
Bitmap thumbnail = svgThumbnailProvider.GetThumbnail(256);
Assert.IsNotNull(thumbnail);
Assert.IsTrue(thumbnail.Width > 0);
@@ -46,7 +48,73 @@ namespace SvgThumbnailProviderUnitTests
svgBuilder.AppendLine("</svg>");
SvgThumbnailProvider svgThumbnailProvider = new SvgThumbnailProvider(null);
Bitmap thumbnail = svgThumbnailProvider.GetThumbnail(svgBuilder.ToString(), 256);
svgThumbnailProvider.SvgContents = svgBuilder.ToString();
svgThumbnailProvider.SvgContentsReady.Set();
Bitmap thumbnail = svgThumbnailProvider.GetThumbnail(256);
Assert.IsTrue(thumbnail != null);
}
[TestMethod]
public void CheckThatWidthAndHeightAreParsedCorrectly1()
{
SvgThumbnailProvider svgThumbnailProvider = new SvgThumbnailProvider(null);
svgThumbnailProvider.SvgContents = @"
<svg
xmlns:dc=""http://purl.org/dc/elements/1.1/""
xmlns:rdf=""http://www.w3.org/1999/02/22-rdf-syntax-ns#""
xmlns:svg=""http://www.w3.org/2000/svg""
xmlns=""http://www.w3.org/2000/svg""
xmlns:xlink=""http://www.w3.org/1999/xlink""
id=""svg8""
version=""1.1""
viewBox=""0 0 380.99999 304.79999"" width=""1px"" height=""20pt"" >
";
svgThumbnailProvider.SvgContentsReady.Set();
Bitmap thumbnail = svgThumbnailProvider.GetThumbnail(256);
Assert.IsTrue(thumbnail != null);
}
[TestMethod]
public void CheckThatWidthAndHeightAreParsedCorrectly2()
{
SvgThumbnailProvider svgThumbnailProvider = new SvgThumbnailProvider(null);
svgThumbnailProvider.SvgContents = @"
<svg
xmlns:dc=""http://purl.org/dc/elements/1.1/""
xmlns:rdf=""http://www.w3.org/1999/02/22-rdf-syntax-ns#""
xmlns:svg=""http://www.w3.org/2000/svg""
xmlns=""http://www.w3.org/2000/svg""
xmlns:xlink=""http://www.w3.org/1999/xlink""
id=""svg8""
version=""1.1""
height=""1152"" width=""2000vh"" >
";
svgThumbnailProvider.SvgContentsReady.Set();
Bitmap thumbnail = svgThumbnailProvider.GetThumbnail(256);
Assert.IsTrue(thumbnail != null);
}
[TestMethod]
public void CheckThatWidthAndHeightAreParsedCorrectly3()
{
SvgThumbnailProvider svgThumbnailProvider = new SvgThumbnailProvider(null);
svgThumbnailProvider.SvgContents = @"
<svg
xmlns:dc=""http://purl.org/dc/elements/1.1/""
xmlns:rdf=""http://www.w3.org/1999/02/22-rdf-syntax-ns#""
xmlns:svg=""http://www.w3.org/2000/svg""
xmlns=""http://www.w3.org/2000/svg""
xmlns:xlink=""http://www.w3.org/1999/xlink""
id=""svg8""
version=""1.1""
viewBox=""0 0 380.99999 304.79999"" width=""2000"" >
";
svgThumbnailProvider.SvgContentsReady.Set();
Bitmap thumbnail = svgThumbnailProvider.GetThumbnail(256);
Assert.IsTrue(thumbnail != null);
}
@@ -57,7 +125,9 @@ namespace SvgThumbnailProviderUnitTests
svgBuilder.AppendLine("<p>foo</p>");
SvgThumbnailProvider svgThumbnailProvider = new SvgThumbnailProvider(null);
Bitmap thumbnail = svgThumbnailProvider.GetThumbnail(svgBuilder.ToString(), 256);
svgThumbnailProvider.SvgContents = svgBuilder.ToString();
svgThumbnailProvider.SvgContentsReady.Set();
Bitmap thumbnail = svgThumbnailProvider.GetThumbnail(256);
Assert.IsTrue(thumbnail == null);
}
@@ -65,7 +135,9 @@ namespace SvgThumbnailProviderUnitTests
public void CheckNoSvgEmptyStringShouldReturnNullBitmap()
{
SvgThumbnailProvider svgThumbnailProvider = new SvgThumbnailProvider(null);
Bitmap thumbnail = svgThumbnailProvider.GetThumbnail(string.Empty, 256);
svgThumbnailProvider.SvgContents = string.Empty;
svgThumbnailProvider.SvgContentsReady.Set();
Bitmap thumbnail = svgThumbnailProvider.GetThumbnail(256);
Assert.IsTrue(thumbnail == null);
}
@@ -73,7 +145,10 @@ namespace SvgThumbnailProviderUnitTests
public void CheckNoSvgNullStringShouldReturnNullBitmap()
{
SvgThumbnailProvider svgThumbnailProvider = new SvgThumbnailProvider(null);
Bitmap thumbnail = svgThumbnailProvider.GetThumbnail(null, 256);
svgThumbnailProvider.SvgContents = string.Empty;
svgThumbnailProvider.SvgContentsReady.Set();
Bitmap thumbnail = svgThumbnailProvider.GetThumbnail(256);
Assert.IsTrue(thumbnail == null);
}
@@ -82,7 +157,9 @@ namespace SvgThumbnailProviderUnitTests
{
string content = "<svg></svg>";
SvgThumbnailProvider svgThumbnailProvider = new SvgThumbnailProvider(null);
Bitmap thumbnail = svgThumbnailProvider.GetThumbnail(content, 0);
svgThumbnailProvider.SvgContents = content;
svgThumbnailProvider.SvgContentsReady.Set();
Bitmap thumbnail = svgThumbnailProvider.GetThumbnail(0);
Assert.IsTrue(thumbnail == null);
}
@@ -104,7 +181,10 @@ namespace SvgThumbnailProviderUnitTests
svgBuilder.AppendLine("</html>");
SvgThumbnailProvider svgThumbnailProvider = new SvgThumbnailProvider(null);
Bitmap thumbnail = svgThumbnailProvider.GetThumbnail(svgBuilder.ToString(), 256);
svgThumbnailProvider.SvgContents = svgBuilder.ToString();
svgThumbnailProvider.SvgContentsReady.Set();
Bitmap thumbnail = svgThumbnailProvider.GetThumbnail(256);
Assert.IsTrue(thumbnail != null);
}