diff options
| -rw-r--r-- | Emby.Drawing.Skia/SkiaEncoder.cs | 130 |
1 files changed, 128 insertions, 2 deletions
diff --git a/Emby.Drawing.Skia/SkiaEncoder.cs b/Emby.Drawing.Skia/SkiaEncoder.cs index 24f586d96..d25030397 100644 --- a/Emby.Drawing.Skia/SkiaEncoder.cs +++ b/Emby.Drawing.Skia/SkiaEncoder.cs @@ -76,7 +76,7 @@ namespace Emby.Drawing.Skia private static bool IsTransparent(SKColor color) { - + return (color.Red == 255 && color.Green == 255 && color.Blue == 255) || color.Alpha == 0; } @@ -267,7 +267,7 @@ namespace Emby.Drawing.Skia { using (bitmap) { - return RotateAndFlip(bitmap, origin); + return OrientImage(bitmap, origin); } } } @@ -278,6 +278,132 @@ namespace Emby.Drawing.Skia return GetBitmap(path, cropWhitespace, false, out origin); } + private SKBitmap OrientImage(SKBitmap bitmap, SKCodecOrigin origin) + { + //var transformations = { + // 2: { rotate: 0, flip: true}, + // 3: { rotate: 180, flip: false}, + // 4: { rotate: 180, flip: true}, + // 5: { rotate: 90, flip: true}, + // 6: { rotate: 90, flip: false}, + // 7: { rotate: 270, flip: true}, + // 8: { rotate: 270, flip: false}, + //} + + switch (origin) + { + + case SKCodecOrigin.TopRight: + { + var rotated = new SKBitmap(bitmap.Width, bitmap.Height); + using (var surface = new SKCanvas(rotated)) + { + surface.Translate(rotated.Width, 0); + surface.Scale(-1, 1); + surface.DrawBitmap(bitmap, 0, 0); + } + + return rotated; + } + + case SKCodecOrigin.BottomRight: + { + var rotated = new SKBitmap(bitmap.Width, bitmap.Height); + using (var surface = new SKCanvas(rotated)) + { + float px = bitmap.Width; + px /= 2; + + float py = bitmap.Height; + py /= 2; + + surface.RotateDegrees(180, px, py); + surface.DrawBitmap(bitmap, 0, 0); + } + + return rotated; + } + + case SKCodecOrigin.BottomLeft: + { + var rotated = new SKBitmap(bitmap.Width, bitmap.Height); + using (var surface = new SKCanvas(rotated)) + { + float px = bitmap.Width; + px /= 2; + + float py = bitmap.Height; + py /= 2; + + surface.Translate(rotated.Width, 0); + surface.Scale(-1, 1); + + surface.RotateDegrees(180, px, py); + surface.DrawBitmap(bitmap, 0, 0); + } + + return rotated; + } + + case SKCodecOrigin.LeftTop: + { + // TODO: Flip + var rotated = new SKBitmap(bitmap.Height, bitmap.Width); + using (var surface = new SKCanvas(rotated)) + { + surface.Translate(rotated.Width, 0); + surface.RotateDegrees(90); + surface.DrawBitmap(bitmap, 0, 0); + } + + return rotated; + } + + case SKCodecOrigin.RightTop: + { + var rotated = new SKBitmap(bitmap.Height, bitmap.Width); + using (var surface = new SKCanvas(rotated)) + { + surface.Translate(rotated.Width, 0); + surface.RotateDegrees(90); + surface.DrawBitmap(bitmap, 0, 0); + } + + return rotated; + } + + case SKCodecOrigin.RightBottom: + { + // TODO: Flip + var rotated = new SKBitmap(bitmap.Height, bitmap.Width); + using (var surface = new SKCanvas(rotated)) + { + surface.Translate(0, rotated.Height); + surface.RotateDegrees(270); + surface.DrawBitmap(bitmap, 0, 0); + } + + return rotated; + } + + case SKCodecOrigin.LeftBottom: + { + var rotated = new SKBitmap(bitmap.Height, bitmap.Width); + using (var surface = new SKCanvas(rotated)) + { + surface.Translate(0, rotated.Height); + surface.RotateDegrees(270); + surface.DrawBitmap(bitmap, 0, 0); + } + + return rotated; + } + + default: + return RotateAndFlip(bitmap, origin); + } + } + private SKBitmap RotateAndFlip(SKBitmap original, SKCodecOrigin origin) { // these are the origins that represent a 90 degree turn in some fashion |