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 SKImage FromPixels (SKImageInfo info, IntPtr pixels, int rowBytes)
{
if (pixels == IntPtr.Zero)
throw new ArgumentNullException (nameof (pixels));
var handle = SkiaApi.sk_image_new_raster_copy (ref info, pixels, (IntPtr) rowBytes);
return GetObject<SKImage> (handle);
}
public SKBitmap (SKImageInfo info, int rowBytes)
: this ()
{
if (!SkiaApi.sk_bitmap_try_alloc_pixels (Handle, ref info, (IntPtr)rowBytes)) {
throw new Exception (UnableToAllocatePixelsMessage);
}
}
public SKCodecResult GetPixels (SKImageInfo info, byte[] pixels)
{
if (pixels == null)
throw new ArgumentNullException (nameof (pixels));
GCHandle handle = default (GCHandle);
try {
handle = GCHandle.Alloc (pixels, GCHandleType.Pinned);
return GetPixels (info, handle.AddrOfPinnedObject ());
} finally {
if (handle.IsAllocated) {
handle.Free ();
}
}
}
public extern static void sk_bitmap_get_info(sk_bitmap_t b, out SKImageInfo info);
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 extern static SKCodecResult sk_codec_start_incremental_decode(sk_codec_t codec, ref SKImageInfo info, IntPtr pixels, IntPtr rowBytes, ref SKCodecOptionsInternal options, IntPtr ctable, ref int ctableCount);
public bool InstallPixels (SKImageInfo info, IntPtr pixels)
{
return InstallPixels (info, pixels, info.RowBytes);
}
public SKBitmap (SKImageInfo info)
: this (info, info.RowBytes)
{
}
public extern static sk_surface_t sk_surface_new_raster(ref SKImageInfo info, IntPtr propsZero);
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 SKCodecResult GetPixels(SKImageInfo info, IntPtr pixels, SKColorTable colorTable, ref int colorTableCount) => GetPixels(info, pixels, info.RowBytes, SKCodecOptions.Default);
public SKCodecResult StartIncrementalDecode(SKImageInfo info, IntPtr pixels, int rowBytes)
{
var cinfo = SKImageInfoNative.FromManaged(ref info);
return(SkiaApi.sk_codec_start_incremental_decode(Handle, &cinfo, (void *)pixels, (IntPtr)rowBytes, null));
}
public SKCodecResult GetPixels(SKImageInfo info, IntPtr pixels, SKCodecOptions options) => GetPixels(info, pixels, info.RowBytes, options);
public SKCodecResult GetPixels(SKImageInfo info, IntPtr pixels, int rowBytes, SKCodecOptions options, SKColorTable colorTable, ref int colorTableCount) => GetPixels(info, pixels, rowBytes, options);
public SKCodecResult GetPixels(SKImageInfo info, out byte[] pixels)
{
pixels = new byte[info.BytesSize];
return(GetPixels(info, pixels));
}
public static SKImage FromPixelCopy(SKImageInfo info, IntPtr pixels) => FromPixelCopy(info, pixels, info.RowBytes);
public bool ReadPixels(SKImageInfo dstInfo, IntPtr dstPixels, int dstRowBytes) => ReadPixels(dstInfo, dstPixels, dstRowBytes, 0, 0, SKImageCachingHint.Allow);
public extern static bool sk_bitmap_try_alloc_pixels(sk_bitmap_t cbitmap, ref SKImageInfo requestedInfo, IntPtr rowBytes);
public SKCodecResult StartIncrementalDecode(SKImageInfo info, IntPtr pixels, int rowBytes, SKCodecOptions options, SKColorTable colorTable, ref int colorTableCount) => StartIncrementalDecode(info, pixels, rowBytes, options);
public extern static sk_image_t sk_image_new_raster_copy(ref SKImageInfo info, IntPtr pixels, IntPtr rowBytes);
public SKCodecResult StartScanlineDecode(SKImageInfo info)
{
var cinfo = SKImageInfoNative.FromManaged(ref info);
return(SkiaApi.sk_codec_start_scanline_decode(Handle, &cinfo, null));
}
public static SKImage FromPixelCopy(SKImageInfo info, ReadOnlySpan <byte> pixels) => FromPixelCopy(info, pixels, info.RowBytes);
public SKCodecResult StartScanlineDecode(SKImageInfo info, SKCodecOptions options, SKColorTable colorTable, ref int colorTableCount) => StartScanlineDecode(info, options);
public static SKBitmap Decode (string filename, SKImageInfo bitmapInfo)
{
if (filename == null) {
throw new ArgumentNullException (nameof (filename));
}
return Decode (new SKFileStream (filename), bitmapInfo);
}
public bool TryAllocPixels(SKImageInfo info)
{
return(TryAllocPixels(info, info.RowBytes));
}
public bool InstallPixels (SKImageInfo info, IntPtr pixels, int rowBytes, SKColorTable ctable)
{
return InstallPixels (info, pixels, rowBytes, ctable, null, null);
}
public bool TryAllocPixels(SKImageInfo info, int rowBytes)
{
var cinfo = SKImageInfoNative.FromManaged(ref info);
return(SkiaApi.sk_bitmap_try_alloc_pixels(Handle, ref cinfo, (IntPtr)rowBytes));
}
// create a new image from a copy of pixel data
public static SKImage FromPixelCopy(SKImageInfo info, SKStream pixels) =>
FromPixelCopy(info, pixels, info.RowBytes);
public bool TryAllocPixels(SKImageInfo info, SKBitmapAllocFlags flags)
{
var cinfo = SKImageInfoNative.FromManaged(ref info);
return(SkiaApi.sk_bitmap_try_alloc_pixels_with_flags(Handle, ref cinfo, flags));
}
public extern static SKCodecResult sk_codec_get_pixels_using_defaults(sk_codec_t codec, ref SKImageInfo info, IntPtr pixels, IntPtr rowBytes);
public bool InstallPixels(SKImageInfo info, IntPtr pixels)
{
return(InstallPixels(info, pixels, info.RowBytes, null, null));
}
public extern static SKCodecResult sk_codec_start_incremental_decode(sk_codec_t codec, ref SKImageInfo info, IntPtr pixels, IntPtr rowBytes, IntPtr optionsZero, IntPtr ctableZero, IntPtr ctableCountZero);
public bool InstallPixels(SKImageInfo info, IntPtr pixels, int rowBytes, SKColorTable ctable)
{
return(InstallPixels(info, pixels, rowBytes, null, null));
}
public extern static bool sk_bitmap_install_pixels(sk_bitmap_t cbitmap, ref SKImageInfo cinfo, IntPtr pixels, IntPtr rowBytes, sk_colortable_t ctable, IntPtr releaseProc, IntPtr context);
public bool InstallPixels(SKImageInfo info, IntPtr pixels, int rowBytes, SKColorTable ctable, SKBitmapReleaseDelegate releaseProc, object context)
{
return(InstallPixels(info, pixels, rowBytes, releaseProc, context));
}
public extern static bool sk_bitmap_try_alloc_pixels_with_color_table(sk_bitmap_t cbitmap, ref SKImageInfo requestedInfo, sk_pixelref_factory_t factory, sk_colortable_t ctable);
public bool InstallPixels(SKImageInfo info, IntPtr pixels, int rowBytes, SKBitmapReleaseDelegate releaseProc)
{
return(InstallPixels(info, pixels, rowBytes, releaseProc, null));
}
public extern static sk_surface_t sk_surface_new_raster(ref SKImageInfo info, ref SKSurfaceProps pros);
public SKBitmap(SKImageInfo info)
: this(info, info.RowBytes)
{
}
public extern static sk_surface_t sk_surface_new_raster_direct(ref SKImageInfo info, IntPtr pixels, IntPtr rowBytes, IntPtr propsZero);
public SKBitmap Resize(SKImageInfo info, SKBitmapResizeMethod method) => Resize(info, method.ToFilterQuality());
public static SKImage FromPixels(SKImageInfo info, IntPtr pixels, int rowBytes)
{
var handle = SkiaApi.sk_image_new_raster_copy (ref info, pixels, (IntPtr) rowBytes);
return GetObject<SKImage> (handle);
}
public SKBitmap(SKImageInfo info, SKColorTable ctable, SKBitmapAllocFlags flags)
: this(info, SKBitmapAllocFlags.None)
{
}
public static SKBitmap Decode (SKData data, SKImageInfo bitmapInfo)
{
if (data == null) {
throw new ArgumentNullException (nameof (data));
}
using (var codec = SKCodec.Create (data)) {
return Decode (codec, bitmapInfo);
}
}
public static SKImage FromPixelCopy(SKImageInfo info, IntPtr pixels, int rowBytes, SKColorTable ctable)
{
return(FromPixelCopy(info, pixels, rowBytes));
}
public static SKBitmap Decode (byte[] buffer, SKImageInfo bitmapInfo)
{
if (buffer == null) {
throw new ArgumentNullException (nameof (buffer));
}
return Decode (new SKMemoryStream (buffer), bitmapInfo);
}
public static SKImage FromPixels(SKImageInfo info, SKData data) => FromPixels(info, data, info.RowBytes);
public bool InstallPixels (SKImageInfo info, IntPtr pixels, int rowBytes)
{
return InstallPixels (info, pixels, rowBytes, null);
}
public static SKSurface Create (SKImageInfo info, SKSurfaceProps props)
{
return GetObject<SKSurface> (SkiaApi.sk_surface_new_raster (ref info, ref props));
}
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 static SKSurface Create (GRContext context, bool budgeted, SKImageInfo info, int sampleCount, SKSurfaceProps props)
{
return GetObject<SKSurface> (SkiaApi.sk_surface_new_render_target (context.Handle, budgeted, ref info, sampleCount, ref props));
}
public bool ReadPixels(SKImageInfo dstInfo, IntPtr dstPixels, int dstRowBytes, int srcX, int srcY)
{
return(ReadPixels(dstInfo, dstPixels, dstRowBytes, srcX, srcY, SKImageCachingHint.Allow));
}
public static SKImage FromPixels(SKImageInfo info, IntPtr pixels, int rowBytes)
{
using (var pixmap = new SKPixmap(info, pixels, rowBytes)) {
return(FromPixels(pixmap, null, null));
}
}
public static SKSurface Create (SKImageInfo info)
{
return GetObject<SKSurface> (SkiaApi.sk_surface_new_raster (ref info, IntPtr.Zero));
}
public bool ReadPixels(SKImageInfo dstInfo, IntPtr dstPixels, int dstRowBytes, int srcX, int srcY, SKImageCachingHint cachingHint)
{
var cinfo = SKImageInfoNative.FromManaged(ref dstInfo);
return(SkiaApi.sk_image_read_pixels(Handle, ref cinfo, dstPixels, (IntPtr)dstRowBytes, srcX, srcY, cachingHint));
}
public static SKSurface Create (SKImageInfo info, IntPtr pixels, int rowBytes, SKSurfaceProps props)
{
return GetObject<SKSurface> (SkiaApi.sk_surface_new_raster_direct (ref info, pixels, (IntPtr)rowBytes, ref props));
}
public static SKImage FromPixelCopy(SKImageInfo info, Stream pixels)
{
return(FromPixelCopy(info, pixels, info.RowBytes));
}
public static SKSurface Create (GRContext context, bool budgeted, SKImageInfo info)
{
return GetObject<SKSurface> (SkiaApi.sk_surface_new_render_target (context.Handle, budgeted, ref info, 0, IntPtr.Zero));
}
public SKCodecResult StartScanlineDecode(SKImageInfo info, SKCodecOptions options)
{
int colorTableCount = 0;
return(StartScanlineDecode(info, options, IntPtr.Zero, ref colorTableCount));
}
