public static SKBitmap Decode(SKStream stream)
{
if (stream == null)
{
throw new ArgumentNullException(nameof(stream));
}
using (var codec = SKCodec.Create(stream)) {
if (codec == null)
{
return(null);
}
return(Decode(codec));
}
}
public static SKBitmap Decode(SKData data, SKImageInfo bitmapInfo)
{
if (data == null)
{
throw new ArgumentNullException(nameof(data));
}
using (var codec = SKCodec.Create(data)) {
if (codec == null)
{
return(null);
}
return(Decode(codec, bitmapInfo));
}
}
public static SKBitmap Decode(string filename, SKImageInfo bitmapInfo)
{
if (filename == null)
{
throw new ArgumentNullException(nameof(filename));
}
using (var codec = SKCodec.Create(filename)) {
if (codec == null)
{
return(null);
}
return(Decode(codec, bitmapInfo));
}
}
public static SKBitmap Decode(byte[] buffer, SKImageInfo bitmapInfo)
{
if (buffer == null)
{
throw new ArgumentNullException(nameof(buffer));
}
fixed(byte *b = buffer)
{
using (var skdata = SKData.Create((IntPtr)b, buffer.Length))
using (var codec = SKCodec.Create(skdata)) {
return(Decode(codec, bitmapInfo));
}
}
}
public static SKImageInfo DecodeBounds(byte[] buffer)
{
if (buffer == null)
{
throw new ArgumentNullException(nameof(buffer));
}
fixed(byte *b = buffer)
{
using (var skdata = SKData.Create((IntPtr)b, buffer.Length))
using (var codec = SKCodec.Create(skdata)) {
return(codec?.Info ?? SKImageInfo.Empty);
}
}
}
public static SKImage FromEncodedData(SKStream data)
{
if (data == null)
{
throw new ArgumentNullException(nameof(data));
}
using (var codec = SKCodec.Create(data))
using (var bitmap = SKBitmap.Decode(codec, codec.Info)) {
if (bitmap == null)
{
return(null);
}
return(FromBitmap(bitmap));
}
}
public static SKBitmap Decode(SKCodec codec)
{
if (codec == null)
{
throw new ArgumentNullException(nameof(codec));
}
var info = codec.Info;
if (info.AlphaType == SKAlphaType.Unpremul)
{
info.AlphaType = SKAlphaType.Premul;
}
// for backwards compatibility, remove the colorspace
info.ColorSpace = null;
return(Decode(codec, info));
}
public static SKImage FromEncodedData(string filename)
{
if (filename == null)
{
throw new ArgumentNullException(nameof(filename));
}
using (var stream = SKBitmap.OpenStream(filename))
using (var codec = SKCodec.Create(stream))
using (var bitmap = SKBitmap.Decode(codec, codec.Info)) {
if (bitmap == null)
{
return(null);
}
return(FromBitmap(bitmap));
}
}
public static SKBitmap Decode(SKCodec codec, SKImageInfo bitmapInfo)
{
if (codec == null)
{
throw new ArgumentNullException(nameof(codec));
}
var bitmap = new SKBitmap(bitmapInfo);
var result = codec.GetPixels(bitmapInfo, bitmap.GetPixels(out var length));
if (result != SKCodecResult.Success && result != SKCodecResult.IncompleteInput)
{
bitmap.Dispose();
bitmap = null;
}
return(bitmap);
}
public static SKBitmap Decode (SKCodec codec)
{
if (codec == null) {
throw new ArgumentNullException (nameof (codec));
}
return Decode (codec, codec.Info);
}
public static SKBitmap Decode (SKCodec codec, SKImageInfo bitmapInfo)
{
if (codec == null) {
throw new ArgumentNullException (nameof (codec));
}
// construct a color table for the decode if necessary
SKColorTable colorTable = null;
int colorCount = 0;
if (bitmapInfo.ColorType == SKColorType.Index8)
{
colorTable = new SKColorTable ();
}
// read the pixels and color table
var bitmap = new SKBitmap (bitmapInfo, colorTable);
IntPtr length;
var result = codec.GetPixels (bitmapInfo, bitmap.GetPixels (out length), colorTable, ref colorCount);
if (result != SKCodecResult.Success && result != SKCodecResult.IncompleteInput) {
bitmap.Dispose ();
bitmap = null;
}
return bitmap;
}
public static SKBitmap Decode(SKData data)
{
using (var codec = SKCodec.Create(data)) {
return(Decode(codec));
}
}
public static SKBitmap Decode(SKStream stream)
{
using (var codec = SKCodec.Create(stream)) {
return(Decode(codec));
}
}
public static SKImageInfo DecodeBounds(SKData data)
{
using (var codec = SKCodec.Create(data)) {
return(codec.Info);
}
}
public static SKImageInfo DecodeBounds(SKStream stream)
{
using (var codec = SKCodec.Create(stream)) {
return(codec.Info);
}
}
