From e76ff3bf160dc90968a5530b7477daaff67480b8 Mon Sep 17 00:00:00 2001 From: LukePulverenti Luke Pulverenti luke pulverenti Date: Tue, 18 Sep 2012 17:39:42 -0400 Subject: [PATCH] Improved image processing --- MediaBrowser.Api/HttpHandlers/ImageHandler.cs | 8 ++- .../Drawing/BaseImageProcessor.cs | 56 ++++++++++++++++++- .../Drawing/ImageProcessor.cs | 27 ++++++--- MediaBrowser.Controller/Kernel.cs | 2 +- 4 files changed, 80 insertions(+), 13 deletions(-) diff --git a/MediaBrowser.Api/HttpHandlers/ImageHandler.cs b/MediaBrowser.Api/HttpHandlers/ImageHandler.cs index 73098c71b..da20e0533 100644 --- a/MediaBrowser.Api/HttpHandlers/ImageHandler.cs +++ b/MediaBrowser.Api/HttpHandlers/ImageHandler.cs @@ -1,4 +1,5 @@ -using MediaBrowser.Common.Logging; +using System.Drawing.Imaging; +using MediaBrowser.Common.Logging; using MediaBrowser.Common.Net; using MediaBrowser.Common.Net.Handlers; using MediaBrowser.Controller; @@ -128,6 +129,11 @@ namespace MediaBrowser.Api.HttpHandlers return null; } + if (Kernel.Instance.ImageProcessors.Any(i => i.RequiresTransparency)) + { + return MimeTypes.GetMimeType(".png"); + } + return MimeTypes.GetMimeType(await GetImagePath().ConfigureAwait(false)); } diff --git a/MediaBrowser.Controller/Drawing/BaseImageProcessor.cs b/MediaBrowser.Controller/Drawing/BaseImageProcessor.cs index a2b223a70..ebd0e22c8 100644 --- a/MediaBrowser.Controller/Drawing/BaseImageProcessor.cs +++ b/MediaBrowser.Controller/Drawing/BaseImageProcessor.cs @@ -1,6 +1,8 @@ using MediaBrowser.Controller.Entities; using MediaBrowser.Model.Entities; +using System.ComponentModel.Composition; using System.Drawing; +using System.Drawing.Drawing2D; namespace MediaBrowser.Controller.Drawing { @@ -15,19 +17,69 @@ namespace MediaBrowser.Controller.Drawing /// /// Processes the primary image for a BaseEntity (Person, Studio, User, etc) /// + /// The original Image, before re-sizing /// The bitmap holding the original image, after re-sizing /// The graphics surface on which the output is drawn /// The entity that owns the image - public abstract void ProcessImage(Bitmap bitmap, Graphics graphics, BaseEntity entity); + public abstract void ProcessImage(Image originalImage, Bitmap bitmap, Graphics graphics, BaseEntity entity); /// /// Processes an image for a BaseItem /// + /// The original Image, before re-sizing /// The bitmap holding the original image, after re-sizing /// The graphics surface on which the output is drawn /// The entity that owns the image /// The image type /// The image index (currently only used with backdrops) - public abstract void ProcessImage(Bitmap bitmap, Graphics graphics, BaseItem entity, ImageType imageType, int imageIndex); + public abstract void ProcessImage(Image originalImage, Bitmap bitmap, Graphics graphics, BaseItem entity, ImageType imageType, int imageIndex); + + /// + /// If true, the image output format will be forced to png, resulting in an output size that will generally run larger than jpg + /// + public virtual bool RequiresTransparency + { + get + { + return false; + } + } + } + + /// + /// This is demo-ware and should be deleted eventually + /// + //[Export(typeof(BaseImageProcessor))] + public class MyRoundedCornerImageProcessor : BaseImageProcessor + { + public override void ProcessImage(Image originalImage, Bitmap bitmap, Graphics g, BaseEntity entity) + { + var CornerRadius = 20; + + g.Clear(Color.Transparent); + + using (GraphicsPath gp = new GraphicsPath()) + { + gp.AddArc(0, 0, CornerRadius, CornerRadius, 180, 90); + gp.AddArc(0 + bitmap.Width - CornerRadius, 0, CornerRadius, CornerRadius, 270, 90); + gp.AddArc(0 + bitmap.Width - CornerRadius, 0 + bitmap.Height - CornerRadius, CornerRadius, CornerRadius, 0, 90); + gp.AddArc(0, 0 + bitmap.Height - CornerRadius, CornerRadius, CornerRadius, 90, 90); + + g.SetClip(gp); + g.DrawImage(originalImage, 0, 0, bitmap.Width, bitmap.Height); + } + } + + public override void ProcessImage(Image originalImage, Bitmap bitmap, Graphics graphics, BaseItem entity, ImageType imageType, int imageIndex) + { + } + + public override bool RequiresTransparency + { + get + { + return true; + } + } } } diff --git a/MediaBrowser.Controller/Drawing/ImageProcessor.cs b/MediaBrowser.Controller/Drawing/ImageProcessor.cs index b7815750b..f9b6366c6 100644 --- a/MediaBrowser.Controller/Drawing/ImageProcessor.cs +++ b/MediaBrowser.Controller/Drawing/ImageProcessor.cs @@ -43,6 +43,8 @@ namespace MediaBrowser.Controller.Drawing thumbnail = new Bitmap(newSize.Width, newSize.Height, originalImage.PixelFormat); } + thumbnail.MakeTransparent(); + // Preserve the original resolution thumbnail.SetResolution(originalImage.HorizontalResolution, originalImage.VerticalResolution); @@ -56,14 +58,21 @@ namespace MediaBrowser.Controller.Drawing thumbnailGraph.DrawImage(originalImage, 0, 0, newSize.Width, newSize.Height); + ImageFormat outputFormat = originalImage.RawFormat; + // Run Kernel image processors if (Kernel.Instance.ImageProcessors.Any()) { - ExecuteAdditionalImageProcessors(thumbnail, thumbnailGraph, entity, imageType, imageIndex); + ExecuteAdditionalImageProcessors(originalImage, thumbnail, thumbnailGraph, entity, imageType, imageIndex); + + if (Kernel.Instance.ImageProcessors.Any(i => i.RequiresTransparency)) + { + outputFormat = ImageFormat.Png; + } } // Write to the output stream - SaveImage(originalImage.RawFormat, thumbnail, toStream, quality); + SaveImage(outputFormat, thumbnail, toStream, quality); thumbnailGraph.Dispose(); thumbnail.Dispose(); @@ -78,7 +87,7 @@ namespace MediaBrowser.Controller.Drawing /// The entity that owns the image /// The image type /// The image index (currently only used with backdrops) - private static void ExecuteAdditionalImageProcessors(Bitmap bitmap, Graphics graphics, BaseEntity entity, ImageType imageType, int imageIndex) + private static void ExecuteAdditionalImageProcessors(Image originalImage, Bitmap bitmap, Graphics graphics, BaseEntity entity, ImageType imageType, int imageIndex) { var baseItem = entity as BaseItem; @@ -86,33 +95,33 @@ namespace MediaBrowser.Controller.Drawing { foreach (var processor in Kernel.Instance.ImageProcessors) { - processor.ProcessImage(bitmap, graphics, baseItem, imageType, imageIndex); + processor.ProcessImage(originalImage, bitmap, graphics, baseItem, imageType, imageIndex); } } else { foreach (var processor in Kernel.Instance.ImageProcessors) { - processor.ProcessImage(bitmap, graphics, entity); + processor.ProcessImage(originalImage, bitmap, graphics, entity); } } } - public static void SaveImage(ImageFormat originalImageRawFormat, Image newImage, Stream toStream, int? quality) + public static void SaveImage(ImageFormat outputFormat, Image newImage, Stream toStream, int? quality) { // Use special save methods for jpeg and png that will result in a much higher quality image // All other formats use the generic Image.Save - if (ImageFormat.Jpeg.Equals(originalImageRawFormat)) + if (ImageFormat.Jpeg.Equals(outputFormat)) { SaveJpeg(newImage, toStream, quality); } - else if (ImageFormat.Png.Equals(originalImageRawFormat)) + else if (ImageFormat.Png.Equals(outputFormat)) { newImage.Save(toStream, ImageFormat.Png); } else { - newImage.Save(toStream, originalImageRawFormat); + newImage.Save(toStream, outputFormat); } } diff --git a/MediaBrowser.Controller/Kernel.cs b/MediaBrowser.Controller/Kernel.cs index 4c0dc6965..1c11b9fc8 100644 --- a/MediaBrowser.Controller/Kernel.cs +++ b/MediaBrowser.Controller/Kernel.cs @@ -81,7 +81,7 @@ namespace MediaBrowser.Controller /// Gets the list of currently registered entity resolvers /// [ImportMany(typeof(BaseImageProcessor))] - internal IEnumerable ImageProcessors { get; private set; } + public IEnumerable ImageProcessors { get; private set; } /// /// Creates a kernel based on a Data path, which is akin to our current programdata path