public SKBitmap (SKImageInfo info, SKColorTable ctable)
: this ()
{
if (!SkiaApi.sk_bitmap_try_alloc_pixels_with_color_table (Handle, ref info, IntPtr.Zero, ctable != null ? ctable.Handle : IntPtr.Zero)) {
throw new Exception (UnableToAllocatePixelsMessage);
}
}
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(SKCodec codec)
{
var info = codec.Info;
// construct a color table for the decode if necessary
SKColorTable colorTable = null;
int colorCount = 0;
if (info.ColorType == SKColorType.Index8)
{
colorTable = new SKColorTable();
}
// read the pixels and color table
var bitmap = new SKBitmap(info, colorTable);
IntPtr length;
var result = codec.GetPixels(info, bitmap.GetPixels(out length), colorTable, ref colorCount);
if (result != SKCodecResult.Success && result != SKCodecResult.IncompleteInput)
{
bitmap.Dispose();
bitmap = null;
}
return(bitmap);
}
public SKPixmap(SKImageInfo info, IntPtr addr, int rowBytes, SKColorTable ctable = null)
: this(SkiaApi.sk_pixmap_new_with_params(ref info, addr, (IntPtr)rowBytes, ctable == null ? IntPtr.Zero : ctable.Handle), true)
{
if (Handle == IntPtr.Zero)
{
throw new InvalidOperationException(UnableToCreateInstanceMessage);
}
}
public SKBitmap(SKImageInfo info, SKColorTable ctable, SKBitmapAllocFlags flags)
: this()
{
if (!TryAllocPixels(info, ctable, flags))
{
throw new Exception(UnableToAllocatePixelsMessage);
}
}
public SKBitmap(SKImageInfo info, SKColorTable ctable)
: this()
{
if (!SkiaApi.sk_bitmap_try_alloc_pixels_with_color_table(Handle, ref info, IntPtr.Zero, ctable != null ? ctable.Handle : IntPtr.Zero))
{
throw new Exception(UnableToAllocatePixelsMessage);
}
}
public SKBitmap(SKImageInfo info, SKColorTable ctable, SKBitmapAllocFlags flags)
: this()
{
var cinfo = SKImageInfoNative.FromManaged(ref info);
if (!SkiaApi.sk_bitmap_try_alloc_pixels_with_color_table(Handle, ref cinfo, ctable != null ? ctable.Handle : IntPtr.Zero, flags))
{
throw new Exception(UnableToAllocatePixelsMessage);
}
}
public bool InstallPixels(SKImageInfo info, IntPtr pixels, int rowBytes, SKColorTable ctable, SKBitmapReleaseDelegate releaseProc, object context)
{
IntPtr ct = ctable == null ? IntPtr.Zero : ctable.Handle;
if (releaseProc == null)
{
return(SkiaApi.sk_bitmap_install_pixels(Handle, ref info, pixels, (IntPtr)rowBytes, ct, IntPtr.Zero, IntPtr.Zero));
}
else
{
var ctx = new NativeDelegateContext(context, releaseProc);
return(SkiaApi.sk_bitmap_install_pixels(Handle, ref info, pixels, (IntPtr)rowBytes, ct, releaseDelegate, ctx.NativeContext));
}
}
public bool InstallPixels(SKImageInfo info, IntPtr pixels, int rowBytes, SKColorTable ctable, SKBitmapReleaseDelegate releaseProc, object context)
{
IntPtr ct = ctable == null ? IntPtr.Zero : ctable.Handle;
if (releaseProc == null)
{
return(SkiaApi.sk_bitmap_install_pixels(Handle, ref info, pixels, (IntPtr)rowBytes, ct, IntPtr.Zero, IntPtr.Zero));
}
else
{
var del = Marshal.GetFunctionPointerForDelegate(releaseDelegate);
var ctx = new SKBitmapReleaseDelegateContext(releaseProc, context);
var ctxPtr = ctx.Wrap();
return(SkiaApi.sk_bitmap_install_pixels(Handle, ref info, pixels, (IntPtr)rowBytes, ct, del, ctxPtr));
}
}
public void SetColorTable(SKColorTable ct)
{
// no-op due to unsupperted action
}
public SKBitmap(SKImageInfo info, SKColorTable ctable)
: this(info, SKBitmapAllocFlags.None)
{
}
public void SetPixels(IntPtr pixels, SKColorTable ct)
{
SetPixels(pixels);
}
public SKCodecResult GetPixels (SKImageInfo info, IntPtr pixels, SKColorTable colorTable, ref int colorTableCount)
{
return GetPixels (info, pixels, info.RowBytes, SKCodecOptions.Default, colorTable, ref colorTableCount);
}
public void SetPixels(IntPtr pixels, SKColorTable ct)
{
SkiaApi.sk_bitmap_set_pixels (Handle, pixels, ct != null ? ct.Handle : IntPtr.Zero);
}
public unsafe SKCodecResult StartIncrementalDecode(SKImageInfo info, IntPtr pixels, int rowBytes, SKCodecOptions options, SKColorTable colorTable, ref int colorTableCount)
{
return StartIncrementalDecode (info, pixels, rowBytes, options, colorTable == null ? IntPtr.Zero : colorTable.ReadColors (), ref colorTableCount);
}
public void SetPixels(IntPtr pixels, SKColorTable ct)
{
SkiaApi.sk_bitmap_set_pixels(Handle, pixels, ct != null ? ct.Handle : IntPtr.Zero);
}
public static SKImage FromPixelCopy(SKImageInfo info, IntPtr pixels, int rowBytes, SKColorTable ctable)
{
if (pixels == IntPtr.Zero)
{
throw new ArgumentNullException(nameof(pixels));
}
var ct = (ctable == null ? IntPtr.Zero : ctable.Handle);
var cinfo = SKImageInfoNative.FromManaged(ref info);
var handle = SkiaApi.sk_image_new_raster_copy_with_colortable(ref cinfo, pixels, (IntPtr)rowBytes, ct);
return(GetObject <SKImage> (handle));
}
public SKCodecResult GetPixels(SKImageInfo info, IntPtr pixels, int rowBytes, SKCodecOptions options, SKColorTable colorTable, ref int colorTableCount)
{
return(GetPixels(info, pixels, rowBytes, options, colorTable == null ? IntPtr.Zero : colorTable.ReadColors(), ref colorTableCount));
}
public bool InstallPixels (SKImageInfo info, IntPtr pixels, int rowBytes, SKColorTable ctable, SKBitmapReleaseDelegate releaseProc, object context)
{
IntPtr ct = ctable == null ? IntPtr.Zero : ctable.Handle;
if (releaseProc == null) {
return SkiaApi.sk_bitmap_install_pixels (Handle, ref info, pixels, (IntPtr)rowBytes, ct, IntPtr.Zero, IntPtr.Zero);
} else {
var del = Marshal.GetFunctionPointerForDelegate (releaseDelegate);
var ctx = new SKBitmapReleaseDelegateContext (releaseProc, context);
var ctxPtr = ctx.Wrap ();
return SkiaApi.sk_bitmap_install_pixels (Handle, ref info, pixels, (IntPtr)rowBytes, ct, del, ctxPtr);
}
}
public SKPixmap(SKImageInfo info, IntPtr addr, int rowBytes, SKColorTable ctable)
: this(info, addr, info.RowBytes)
{
}
public bool InstallPixels (SKImageInfo info, IntPtr pixels, int rowBytes, SKColorTable ctable)
{
return InstallPixels (info, pixels, rowBytes, ctable, null, null);
}
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 void SetColorTable(SKColorTable ct)
{
SetPixels (GetPixels (), ct);
}
public bool InstallPixels(SKImageInfo info, IntPtr pixels, int rowBytes, SKColorTable ctable, SKBitmapReleaseDelegate releaseProc, object context)
{
return(InstallPixels(info, pixels, rowBytes, releaseProc, context));
}
public unsafe SKCodecResult StartIncrementalDecode(SKImageInfo info, IntPtr pixels, int rowBytes, SKCodecOptions options, SKColorTable colorTable, ref int colorTableCount)
{
return(StartIncrementalDecode(info, pixels, rowBytes, options, colorTable == null ? IntPtr.Zero : colorTable.ReadColors(), ref colorTableCount));
}
public SKCodecResult GetPixels(SKImageInfo info, IntPtr pixels, SKCodecOptions options, SKColorTable colorTable, ref int colorTableCount) => GetPixels(info, pixels, info.RowBytes, options);
public SKCodecResult GetPixels (SKImageInfo info, IntPtr pixels, int rowBytes, SKCodecOptions options, SKColorTable colorTable, ref int colorTableCount)
{
return GetPixels (info, pixels, rowBytes, options, colorTable == null ? IntPtr.Zero : colorTable.ReadColors (), ref colorTableCount);
}
public static SKImage FromPixelCopy(SKImageInfo info, IntPtr pixels, int rowBytes, SKColorTable ctable) => FromPixelCopy(info, pixels, rowBytes);
private bool TryAllocPixels(SKImageInfo info, SKColorTable ctable, SKBitmapAllocFlags flags = SKBitmapAllocFlags.None)
{
var cinfo = SKImageInfoNative.FromManaged(ref info);
return(SkiaApi.sk_bitmap_try_alloc_pixels_with_color_table(Handle, ref cinfo, ctable != null ? ctable.Handle : IntPtr.Zero, flags));
}
public void SetColorTable(SKColorTable ct)
{
SetPixels(GetPixels(), ct);
}
public void Reset(SKImageInfo info, IntPtr addr, int rowBytes, SKColorTable ctable = null)
{
SkiaApi.sk_pixmap_reset_with_params(Handle, ref info, addr, (IntPtr)rowBytes, ctable == null ? IntPtr.Zero : ctable.Handle);
}
public bool InstallPixels(SKImageInfo info, IntPtr pixels, int rowBytes, SKColorTable ctable)
{
return(InstallPixels(info, pixels, rowBytes, ctable, null, null));
}
public void Reset(SKImageInfo info, IntPtr addr, int rowBytes, SKColorTable ctable)
{
Reset(info, addr, rowBytes);
}
public SKBitmap(SKImageInfo info, SKColorTable ctable)
: this(info, ctable, 0)
{
}
public SKCodecResult GetPixels(SKImageInfo info, IntPtr pixels, int rowBytes, SKCodecOptions options, SKColorTable colorTable, ref int colorTableCount)
{
return(GetPixels(info, pixels, rowBytes, options));
}
public SKCodecResult GetPixels(SKImageInfo info, IntPtr pixels, SKColorTable colorTable, ref int colorTableCount)
{
return(GetPixels(info, pixels, info.RowBytes, SKCodecOptions.Default, colorTable, ref colorTableCount));
}
public SKCodecResult StartIncrementalDecode(SKImageInfo info, IntPtr pixels, int rowBytes, SKCodecOptions options, SKColorTable colorTable, ref int colorTableCount)
{
return(StartIncrementalDecode(info, pixels, rowBytes, options));
}
public SKCodecResult StartScanlineDecode(SKImageInfo info, SKCodecOptions options, SKColorTable colorTable, ref int colorTableCount)
{
return(StartScanlineDecode(info, options, colorTable == null ? IntPtr.Zero : colorTable.ReadColors(), ref colorTableCount));
}
public SKCodecResult StartScanlineDecode(SKImageInfo info, SKCodecOptions options, SKColorTable colorTable, ref int colorTableCount)
{
return(StartScanlineDecode(info, options));
}
