complete gdi fallback

4 files changed, 157 insertions, 2 deletions

diff --git a/Emby.Drawing/Emby.Drawing.csproj b/Emby.Drawing/Emby.Drawing.csproj
index 1907381e9..0e368d70e 100644
--- a/Emby.Drawing/Emby.Drawing.csproj
+++ b/Emby.Drawing/Emby.Drawing.csproj
@@ -48,6 +48,7 @@
     <Compile Include="..\SharedVersion.cs">
       <Link>Properties\SharedVersion.cs</Link>
     </Compile>
+    <Compile Include="GDI\DynamicImageHelpers.cs" />
     <Compile Include="GDI\GDIImageEncoder.cs" />
     <Compile Include="GDI\ImageExtensions.cs" />
     <Compile Include="GDI\PercentPlayedDrawer.cs" />
diff --git a/Emby.Drawing/GDI/DynamicImageHelpers.cs b/Emby.Drawing/GDI/DynamicImageHelpers.cs
new file mode 100644
index 000000000..c49007c5f
--- /dev/null
+++ b/Emby.Drawing/GDI/DynamicImageHelpers.cs
@@ -0,0 +1,138 @@
+using Emby.Drawing.ImageMagick;
+using MediaBrowser.Common.IO;
+using System.Collections.Generic;
+using System.Drawing;
+using System.Drawing.Drawing2D;
+using System.Drawing.Imaging;
+using System.IO;
+using System.Linq;
+
+namespace Emby.Drawing.GDI
+{
+    public static class DynamicImageHelpers
+    {
+        public static void CreateThumbCollage(List<string> files,
+            IFileSystem fileSystem,
+            string file,
+            int width,
+            int height)
+        {
+            const int numStrips = 4;
+            files = StripCollageBuilder.ProjectPaths(files, numStrips).ToList();
+            
+            const int rows = 1;
+             int cols = numStrips;
+
+            int cellWidth = 2 * (width / 3);
+            int cellHeight = height;
+            var index = 0;
+
+            using (var img = new Bitmap(width, height, PixelFormat.Format32bppPArgb))
+            {
+                using (var graphics = Graphics.FromImage(img))
+                {
+                    graphics.CompositingQuality = CompositingQuality.HighQuality;
+                    graphics.SmoothingMode = SmoothingMode.HighQuality;
+                    graphics.InterpolationMode = InterpolationMode.HighQualityBicubic;
+                    graphics.PixelOffsetMode = PixelOffsetMode.HighQuality;
+                    graphics.CompositingMode = CompositingMode.SourceCopy;
+
+                    for (var row = 0; row < rows; row++)
+                    {
+                        for (var col = 0; col < cols; col++)
+                        {
+                            var x = col * (cellWidth / 2);
+                            var y = row * cellHeight;
+
+                            if (files.Count > index)
+                            {
+                                using (var fileStream = fileSystem.GetFileStream(files[index], FileMode.Open, FileAccess.Read, FileShare.Read, true))
+                                {
+                                    using (var memoryStream = new MemoryStream())
+                                    {
+                                        fileStream.CopyTo(memoryStream);
+
+                                        memoryStream.Position = 0;
+
+                                        using (var imgtemp = Image.FromStream(memoryStream, true, false))
+                                        {
+                                            graphics.DrawImage(imgtemp, x, y, cellWidth, cellHeight);
+                                        }
+                                    }
+                                }
+                            }
+
+                            index++;
+                        }
+                    }
+                    img.Save(file);
+                }
+            }
+        }
+
+        public static void CreateSquareCollage(List<string> files,
+            IFileSystem fileSystem,
+            string file,
+            int width,
+            int height)
+        {
+            files = StripCollageBuilder.ProjectPaths(files, 4).ToList();
+            
+            const int rows = 2;
+            const int cols = 2;
+
+            int singleSize = width / 2;
+            var index = 0;
+
+            using (var img = new Bitmap(width, height, PixelFormat.Format32bppPArgb))
+            {
+                using (var graphics = Graphics.FromImage(img))
+                {
+                    graphics.CompositingQuality = CompositingQuality.HighQuality;
+                    graphics.SmoothingMode = SmoothingMode.HighQuality;
+                    graphics.InterpolationMode = InterpolationMode.HighQualityBicubic;
+                    graphics.PixelOffsetMode = PixelOffsetMode.HighQuality;
+                    graphics.CompositingMode = CompositingMode.SourceCopy;
+
+                    for (var row = 0; row < rows; row++)
+                    {
+                        for (var col = 0; col < cols; col++)
+                        {
+                            var x = col * singleSize;
+                            var y = row * singleSize;
+
+                            using (var fileStream = fileSystem.GetFileStream(files[index], FileMode.Open, FileAccess.Read, FileShare.Read, true))
+                            {
+                                using (var memoryStream = new MemoryStream())
+                                {
+                                    fileStream.CopyTo(memoryStream);
+
+                                    memoryStream.Position = 0;
+
+                                    using (var imgtemp = Image.FromStream(memoryStream, true, false))
+                                    {
+                                        graphics.DrawImage(imgtemp, x, y, singleSize, singleSize);
+                                    }
+                                }
+                            }
+
+                            index++;
+                        }
+                    }
+                    img.Save(file);
+                }
+            }
+        }
+
+        private static Stream GetStream(Image image)
+        {
+            var ms = new MemoryStream();
+
+            image.Save(ms, ImageFormat.Png);
+
+            ms.Position = 0;
+
+            return ms;
+        }
+    }
+}
diff --git a/Emby.Drawing/GDI/GDIImageEncoder.cs b/Emby.Drawing/GDI/GDIImageEncoder.cs
index c6537fc43..33502c5e1 100644
--- a/Emby.Drawing/GDI/GDIImageEncoder.cs
+++ b/Emby.Drawing/GDI/GDIImageEncoder.cs
@@ -1,4 +1,5 @@
-using MediaBrowser.Common.IO;
+using System.Linq;
+using MediaBrowser.Common.IO;
 using MediaBrowser.Controller.Drawing;
 using MediaBrowser.Model.Drawing;
 using MediaBrowser.Model.Logging;
@@ -224,6 +225,21 @@ namespace Emby.Drawing.GDI
 
         public void CreateImageCollage(ImageCollageOptions options)
         {
+            double ratio = options.Width;
+            ratio /= options.Height;
+
+            if (ratio >= 1.4)
+            {
+                DynamicImageHelpers.CreateThumbCollage(options.InputPaths.ToList(), _fileSystem, options.OutputPath, options.Width, options.Height);
+            }
+            else if (ratio >= .9)
+            {
+                DynamicImageHelpers.CreateSquareCollage(options.InputPaths.ToList(), _fileSystem, options.OutputPath, options.Width, options.Height);
+            }
+            else
+            {
+                DynamicImageHelpers.CreateSquareCollage(options.InputPaths.ToList(), _fileSystem, options.OutputPath, options.Width, options.Width);
+            }
         }
 
         public void Dispose()
diff --git a/Emby.Drawing/ImageMagick/StripCollageBuilder.cs b/Emby.Drawing/ImageMagick/StripCollageBuilder.cs
index d6e05a531..7cdd0077d 100644
--- a/Emby.Drawing/ImageMagick/StripCollageBuilder.cs
+++ b/Emby.Drawing/ImageMagick/StripCollageBuilder.cs
@@ -69,7 +69,7 @@ namespace Emby.Drawing.ImageMagick
             }
         }
 
-        private string[] ProjectPaths(IEnumerable<string> paths, int count)
+        internal static string[] ProjectPaths(IEnumerable<string> paths, int count)
         {
             var clone = paths.ToList();
             var list = new List<string>();