Backupppert/jellyfin
0
0
Fork 0
mirror of https://github.com/jellyfin/jellyfin.git synced 2024-07-08 23:00:51 +02:00
Code Issues Packages Projects Releases Wiki Activity

update image orientation

Browse source
This commit is contained in:
Luke Pulverenti 2017-09-02 01:33:04 -04:00
parent 1196475201
commit 78ad5c91f1
1 changed files with 128 additions and 2 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

130
Emby.Drawing.Skia/SkiaEncoder.cs
View file

@ -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