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done new image viewer

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This commit is contained in:
Paddy Xu
2018-08-28 22:48:10 +03:00
parent 3bcb48a43c
commit 9832b0f99e
12 changed files with 323 additions and 176 deletions
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61
QuickLook.Plugin/QuickLook.Plugin.ImageViewer/AnimatedImage/APNGAnimationProvider.cs
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@@ -17,35 +17,38 @@
using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Threading.Tasks;
using System.Windows;
using System.Windows.Media;
using System.Windows.Media.Animation;
using System.Windows.Media.Imaging;
using System.Windows.Threading;
using LibAPNG;
using QuickLook.Common.ExtensionMethods;
namespace QuickLook.Plugin.ImageViewer.AnimatedImage
{
internal class APNGAnimationProvider : AnimationProvider
internal class APngAnimationProvider : AnimationProvider
{
private readonly Frame _baseFrame;
private readonly List<FrameInfo> _frames;
private readonly List<BitmapSource> _renderedFrames;
private NETImageProvider _imageMagickProvider;
private int _lastEffecitvePreviousPreviousFrameIndex;
private int _lastEffectivePreviousPreviousFrameIndex;
private NativeImageProvider _nativeImageProvider;
public APNGAnimationProvider(string path) : base(path)
public APngAnimationProvider(string path, NConvert meta) : base(path, meta)
{
var decoder = new APNGBitmap(path);
if (decoder.IsSimplePNG)
if (!IsAnimatedPng(path))
{
_imageMagickProvider = new NETImageProvider(path);
_nativeImageProvider = new NativeImageProvider(path, meta);
Animator = _nativeImageProvider.Animator;
return;
}
var decoder = new APNGBitmap(path);
_baseFrame = decoder.DefaultImage;
_frames = new List<FrameInfo>(decoder.Frames.Length);
_renderedFrames = new List<BitmapSource>(decoder.Frames.Length);
Enumerable.Repeat(0, decoder.Frames.Length).ForEach(_ => _renderedFrames.Add(null));
@@ -67,13 +70,16 @@ namespace QuickLook.Plugin.ImageViewer.AnimatedImage
public override Task<BitmapSource> GetThumbnail(Size size, Size fullSize)
{
throw new NotImplementedException();
if (_nativeImageProvider != null)
return _nativeImageProvider.GetThumbnail(size, fullSize);
return new Task<BitmapSource>(() => _baseFrame.GetBitmapSource());
}
public override Task<BitmapSource> GetRenderedFrame(int index)
{
if (_imageMagickProvider != null)
return _imageMagickProvider.GetRenderedFrame(index);
if (_nativeImageProvider != null)
return _nativeImageProvider.GetRenderedFrame(index);
if (_renderedFrames[index] != null)
return new Task<BitmapSource>(() => _renderedFrames[index]);
@@ -89,10 +95,10 @@ namespace QuickLook.Plugin.ImageViewer.AnimatedImage
public override void Dispose()
{
if (_imageMagickProvider != null)
if (_nativeImageProvider != null)
{
_imageMagickProvider.Dispose();
_imageMagickProvider = null;
_nativeImageProvider.Dispose();
_nativeImageProvider = null;
return;
}
@@ -119,9 +125,9 @@ namespace QuickLook.Plugin.ImageViewer.AnimatedImage
// when saying APNGDisposeOpPrevious, we need to find the last frame not having APNGDisposeOpPrevious.
// Only [index-2] is not correct here since that frame may also have APNGDisposeOpPrevious.
if (index > 1)
previousPreviousRendered = _renderedFrames[_lastEffecitvePreviousPreviousFrameIndex];
previousPreviousRendered = _renderedFrames[_lastEffectivePreviousPreviousFrameIndex];
if (_frames[index].DisposeOp != DisposeOps.APNGDisposeOpPrevious)
_lastEffecitvePreviousPreviousFrameIndex = Math.Max(_lastEffecitvePreviousPreviousFrameIndex, index);
_lastEffectivePreviousPreviousFrameIndex = Math.Max(_lastEffectivePreviousPreviousFrameIndex, index);
var visual = new DrawingVisual();
@@ -169,6 +175,27 @@ namespace QuickLook.Plugin.ImageViewer.AnimatedImage
return bitmap;
}
private static bool IsAnimatedPng(string path)
{
using (var br = new BinaryReader(new FileStream(path, FileMode.Open, FileAccess.Read, FileShare.ReadWrite)))
{
while (br.BaseStream.Length - br.BaseStream.Position >= 4)
{
var window = br.ReadBytes(4);
if (window[0] == 'I' && window[1] == 'D' && window[2] == 'A' && window[3] == 'T')
return false;
if (window[0] == 'a' && window[1] == 'c' && window[2] == 'T' && window[3] == 'L')
return true;
br.BaseStream.Position -= 3;
}
return false;
}
}
private class FrameInfo
{
public readonly BlendOps BlendOp;