public static void RenderRaster(SKCanvas canvas, SKBitmap bitmap, SKRect rect, float opacity = 1f)
{
// Better for quality. Helps to compare to WPF
var color = new SKColor(255, 255, 255, (byte)(255 * opacity));
var paint = new SKPaint { Color = color, FilterQuality = SKFilterQuality.High };
canvas.DrawBitmap(bitmap, rect, paint);
// Better for performance:
canvas.DrawBitmap(bitmap, rect);
}
public void InsertImageFromByteArray()
{
//ExStart
//ExFor:DocumentBuilder.InsertImage(Byte[])
//ExSummary:Shows how to import an image into a document from a byte array.
Document doc = new Document();
DocumentBuilder builder = new DocumentBuilder(doc);
#if NETSTANDARD2_0 || __MOBILE__
using (SkiaSharp.SKBitmap bitmap = SkiaSharp.SKBitmap.Decode(ImageDir + "Aspose.Words.gif"))
{
using (SkiaSharp.SKFileWStream fs = new SkiaSharp.SKFileWStream(MyDir + "Artifacts/InsertImageFromByteArray.png"))
{
bitmap.Encode(fs, SKEncodedImageFormat.Png, 100);
}
builder.InsertImage(bitmap);
builder.Document.Save(MyDir + "Artifacts/Image.CreateFromByteArrayDefault.docx");
}
#else
// Prepare a byte array of an image.
Image image = Image.FromFile(ImageDir + "Aspose.Words.gif");
using (MemoryStream imageBytes = new MemoryStream())
{
image.Save(imageBytes, ImageFormat.Png);
builder.InsertImage(imageBytes.ToArray());
builder.Document.Save(MyDir + @"\Artifacts\Image.CreateFromByteArrayDefault.doc");
}
#endif
//ExEnd
}
public void InsertImageFromByteArrayCustomSize()
{
//ExStart
//ExFor:DocumentBuilder.InsertImage(Byte[], Double, Double)
//ExSummary:Shows how to import an image into a document from a byte array, with a custom size.
Document doc = new Document();
DocumentBuilder builder = new DocumentBuilder(doc);
#if NETSTANDARD2_0 || __MOBILE__
using (SkiaSharp.SKBitmap bitmap = SkiaSharp.SKBitmap.Decode(ImageDir + "Aspose.Words.gif"))
{
using (SkiaSharp.SKFileWStream fs =
new SkiaSharp.SKFileWStream(MyDir + "Artifacts/InsertImageFromByteArrayCustomSize.png"))
{
bitmap.PeekPixels().Encode(fs, SKEncodedImageFormat.Png, 100);
}
builder.InsertImage(bitmap, ConvertUtil.PixelToPoint(250), ConvertUtil.PixelToPoint(144));
builder.Document.Save(MyDir + "Artifacts/Image.CreateFromByteArrayCustomSize.doc");
}
#else
// Prepare a byte array of an image.
using (Image image = Image.FromFile(ImageDir + "Aspose.Words.gif"))
{
using (MemoryStream imageBytes = new MemoryStream())
{
image.Save(imageBytes, ImageFormat.Png);
builder.InsertImage(imageBytes, ConvertUtil.PixelToPoint(250), ConvertUtil.PixelToPoint(144));
builder.Document.Save(MyDir + @"\Artifacts\Image.CreateFromByteArrayCustomSize.doc");
}
}
#endif
//ExEnd
}
public void Save(string filename, SkiaSharp.SKEncodedImageFormat format)
{
if (Disposed)
{
return;
}
SkiaSharp.SKBitmap bitmap = new SkiaSharp.SKBitmap(this.Width, this.Height, false);
int w = Width;
int h = Height;
var colorPtr = this.GetColors();
for (int y = 0; y < h; y++)
{
for (int x = 0; x < w; x++)
{
var col = *(colorPtr + x + (h - 1 - y) * h);
bitmap.SetPixel(x, y, new SkiaSharp.SKColor(col.R, col.G, col.B, col.A));
}
}
var img = SkiaSharp.SKImage.FromBitmap(bitmap);
var data = img.Encode(format, 100);
System.IO.File.WriteAllBytes(filename, data.ToArray());
img.Dispose();
bitmap.Dispose();
}
public static SKImage FromBitmap(SKBitmap bitmap)
{
if (bitmap == null)
throw new ArgumentNullException (nameof (bitmap));
var handle = SkiaApi.sk_image_new_from_bitmap (bitmap.Handle);
return GetObject<SKImage> (handle);
}
public static Image LoadImage(byte[] pb)
{
if (pb == null)
{
throw new ArgumentNullException("pb");
}
#if !KeePassLibSD
// First try to load the data as ICO and afterwards as
// normal image, because trying to load an ICO using
// the normal image loading methods can result in a
// low resolution image
try
{
Image imgIco = ExtractBestImageFromIco(pb);
if (imgIco != null)
{
return(imgIco);
}
}
catch (Exception) { Debug.Assert(false); }
#endif
MemoryStream ms = new MemoryStream(pb, false);
try { return(LoadImagePriv(ms)); }
finally { ms.Close(); }
}
public static void RenderTexture(SKCanvas canvas, SKBitmap bitmap, float x, float y, float orientation = 0,
float offsetX = 0, float offsetY = 0,
LabelStyle.HorizontalAlignmentEnum horizontalAlignment = LabelStyle.HorizontalAlignmentEnum.Center,
LabelStyle.VerticalAlignmentEnum verticalAlignment = LabelStyle.VerticalAlignmentEnum.Center,
float opacity = 1f,
float scale = 1f)
{
canvas.Save();
canvas.Translate(x, y);
canvas.RotateDegrees(orientation, 0, 0); // todo: or degrees?
canvas.Scale(scale, scale);
x = offsetX + DetermineHorizontalAlignmentCorrection(horizontalAlignment, bitmap.Width);
y = -offsetY + DetermineVerticalAlignmentCorrection(verticalAlignment, bitmap.Height);
var halfWidth = bitmap.Width/2;
var halfHeight = bitmap.Height/2;
var rect = new SKRect(x - halfWidth, y - halfHeight, x + halfWidth, y + halfHeight);
RenderTexture(canvas, bitmap, rect, opacity);
canvas.Restore();
}
public SKCanvas(SKBitmap bitmap)
: this(IntPtr.Zero, true)
{
if (bitmap == null)
throw new ArgumentNullException (nameof (bitmap));
Handle = SkiaApi.sk_canvas_new_from_bitmap (bitmap.Handle);
}
private void FixSize()
{
int width, height;
GetPlatformWindowSize(out width, out height);
if (Width == width && Height == height)
return;
Width = width;
Height = height;
if (Surface != null)
{
Surface.Dispose();
}
if (_bitmap != null)
{
_bitmap.Dispose();
}
_bitmap = new SKBitmap(width, height, SKImageInfo.PlatformColorType, SKAlphaType.Premul);
IntPtr length;
var pixels = _bitmap.GetPixels(out length);
// Wrap the bitmap in a Surface and keep it cached
Surface = SKSurface.Create(_bitmap.Info, pixels, _bitmap.RowBytes);
}
public void InsertImageFromByteArrayRelativePosition()
{
//ExStart
//ExFor:DocumentBuilder.InsertImage(Byte[], RelativeHorizontalPosition, Double, RelativeVerticalPosition, Double, Double, Double, WrapType)
//ExSummary:Shows how to import an image into a document from a byte array, also using relative positions.
Document doc = new Document();
DocumentBuilder builder = new DocumentBuilder(doc);
#if NETSTANDARD2_0 || __MOBILE__
using (SkiaSharp.SKBitmap bitmap = SkiaSharp.SKBitmap.Decode(ImageDir + "Aspose.Words.gif"))
{
using (SkiaSharp.SKFileWStream fs = new SkiaSharp.SKFileWStream(MyDir + "Artifacts/InsertImageFromByteArrayCustomSize.png"))
{
bitmap.Encode(fs, SKEncodedImageFormat.Png, 100);
}
builder.InsertImage(bitmap, RelativeHorizontalPosition.Margin, 100, RelativeVerticalPosition.Margin, 100, 200, 100, WrapType.Square);
builder.Document.Save(MyDir + "Artifacts/Image.CreateFromByteArrayCustomSize.doc");
}
#else
// Prepare a byte array of an image.
Image image = Image.FromFile(ImageDir + "Aspose.Words.gif");
using (MemoryStream imageBytes = new MemoryStream())
{
image.Save(imageBytes, ImageFormat.Png);
builder.InsertImage(imageBytes, RelativeHorizontalPosition.Margin, 100, RelativeVerticalPosition.Margin, 100, 200, 100, WrapType.Square);
builder.Document.Save(MyDir + @"\Artifacts\Image.CreateFromByteArrayRelativePosition.doc");
}
#endif
//ExEnd
}
/// <summary>
/// Resize an image.
/// </summary>
/// <param name="img">Image to resize.</param>
/// <param name="w">Width of the returned image.</param>
/// <param name="h">Height of the returned image.</param>
/// <param name="f">Flags to customize scaling behavior.</param>
/// <returns>Resized image. This object is always different
/// from <paramref name="img" /> (i.e. they can be
/// disposed separately).</returns>
public static Image ScaleImage(Image img, int w, int h,
ScaleTransformFlags f)
{
if (img == null)
{
throw new ArgumentNullException("img");
}
if (w < 0)
{
throw new ArgumentOutOfRangeException("w");
}
if (h < 0)
{
throw new ArgumentOutOfRangeException("h");
}
bool bUIIcon = ((f & ScaleTransformFlags.UIIcon) !=
ScaleTransformFlags.None);
// We must return a Bitmap object for UIUtil.CreateScaledImage
Bitmap bmp = new Bitmap(w, h, PixelFormat.Format32bppArgb);
using (Graphics g = Graphics.FromImage(bmp))
{
g.Clear(Color.Transparent);
g.SmoothingMode = SmoothingMode.HighQuality;
g.CompositingQuality = CompositingQuality.HighQuality;
int wSrc = img.Width;
int hSrc = img.Height;
InterpolationMode im = InterpolationMode.HighQualityBicubic;
if ((wSrc > 0) && (hSrc > 0))
{
if (bUIIcon && ((w % wSrc) == 0) && ((h % hSrc) == 0))
{
im = InterpolationMode.NearestNeighbor;
}
// else if((w < wSrc) && (h < hSrc))
// im = InterpolationMode.HighQualityBilinear;
}
else
{
Debug.Assert(false);
}
g.InterpolationMode = im;
RectangleF rSource = new RectangleF(0.0f, 0.0f, wSrc, hSrc);
RectangleF rDest = new RectangleF(0.0f, 0.0f, w, h);
AdjustScaleRects(ref rSource, ref rDest);
g.DrawImage(img, rDest, rSource, GraphicsUnit.Pixel);
}
return(bmp);
}
public static Image ScaleImage(Image img, int w, int h)
{
if (img == null)
{
return(null);
}
return(img.Resize(new SKImageInfo(w, h), SKFilterQuality.High));
}
IBitmapImpl LoadBitmap(byte[] data)
{
var bitmap = new SKBitmap();
if (!SKImageDecoder.DecodeMemory(data, bitmap))
{
throw new ArgumentException("Unable to load bitmap from provided data");
}
return new BitmapImpl(bitmap);
}
public static Image LoadImage(byte[] pb)
{
if (pb == null)
{
throw new ArgumentNullException("pb");
}
MemoryStream ms = new MemoryStream(pb, false);
try { return(Image.FromStream(ms)); }
finally { ms.Close(); }
}
public void Setup()
{
benchmarkDocumentBytes = PixiParser.Serialize(Helper.CreateDocument(Size, Layers));
benchmarkDocument = Helper.CreateDocument(Size, Layers);
bitmaps = new SkiaSharp.SKBitmap[Layers];
for (int i = 0; i < Layers; i++)
{
bitmaps[i] = Helper.CreateSKBitmap(Size);
}
}
public static Image LoadImage(byte[] pb)
{
if (pb == null)
{
return(null);
}
using (var ms = new MemoryStream(pb, false))
{
return(Image.Decode(ms));
}
}
internal static ulong HashImage64(Image img)
{
Bitmap bmp = (img as Bitmap);
if (bmp == null)
{
Debug.Assert(false); return(0);
}
BitmapData bd = null;
try
{
int w = bmp.Width, h = bmp.Height;
if ((w <= 0) || (h <= 0))
{
Debug.Assert(false); return(0);
}
bd = bmp.LockBits(new Rectangle(0, 0, w, h),
ImageLockMode.ReadOnly, PixelFormat.Format32bppArgb);
if (bd.Stride != (w * 4))
{
Debug.Assert(false); return(0);
}
Debug.Assert(Marshal.SizeOf(typeof(int)) == 4);
int cp = w * h;
int[] v = new int[cp];
Marshal.Copy(bd.Scan0, v, 0, cp);
ulong u = (ulong)w * 0x50EF39EB5BE34CA9;
for (int i = 0; i < cp; ++i)
{
u = (u ^ (uint)v[i]) * 0x6E18585D2D174BD5;
}
return(u ^ (u >> 32));
}
catch (Exception) { Debug.Assert(false); }
finally
{
if (bd != null)
{
bmp.UnlockBits(bd);
}
}
return(0);
}
public static void SaveImage(Image img, string path)
{
if (img == null || path == null)
{
return;
}
SKImage image = SKImage.FromBitmap(img);
SKData png = image.Encode(SKEncodedImageFormat.Png, 100);
using (var filestream = File.OpenWrite(path))
{
png.SaveTo(filestream);
}
}
internal static string ImageToDataUri(Image img)
{
if (img == null)
{
Debug.Assert(false); return(string.Empty);
}
byte[] pb = null;
using (MemoryStream ms = new MemoryStream())
{
img.Save(ms, ImageFormat.Png);
pb = ms.ToArray();
}
return(StrUtil.DataToDataUri(pb, "image/png"));
}
private static Image LoadImagePriv(Stream s)
{
// Image.FromStream wants the stream to be open during
// the whole lifetime of the image; as we can't guarantee
// this, we make a copy of the image
Image imgSrc = null;
try
{
#if !KeePassLibSD
imgSrc = Image.FromStream(s);
Bitmap bmp = new Bitmap(imgSrc.Width, imgSrc.Height,
PixelFormat.Format32bppArgb);
try
{
bmp.SetResolution(imgSrc.HorizontalResolution,
imgSrc.VerticalResolution);
Debug.Assert(bmp.Size == imgSrc.Size);
}
catch (Exception) { Debug.Assert(false); }
#else
imgSrc = new Bitmap(s);
Bitmap bmp = new Bitmap(imgSrc.Width, imgSrc.Height);
#endif
using (Graphics g = Graphics.FromImage(bmp))
{
g.Clear(Color.Transparent);
#if !KeePassLibSD
g.DrawImageUnscaled(imgSrc, 0, 0);
#else
g.DrawImage(imgSrc, 0, 0);
#endif
}
return(bmp);
}
finally { if (imgSrc != null)
{
imgSrc.Dispose();
}
}
}
private Response RenderMap(dynamic parameters)
{
var gameServer = this.servers.OfType <IGameServer>().FirstOrDefault(s => s.Id == (byte)parameters.serverId);
var map = gameServer?.ServerInfo.Maps.FirstOrDefault(m => m.MapNumber == (short)parameters.mapId);
if (map == null)
{
Log.Warn($"requested map not available. map number: {parameters.mapId}; server id: {parameters.serverId}");
return(null);
}
var terrain = new GameMapTerrain(map.MapName, map.TerrainData);
using (var bitmap = new SkiaSharp.SKBitmap(0x100, 0x100))
{
for (int y = 0; y < 0x100; y++)
{
for (int x = 0; x < 0x100; x++)
{
var color = SKColors.Black;
if (terrain.SafezoneMap[y, x])
{
color = SKColors.Gray;
}
else if (terrain.WalkMap[y, x])
{
color = SKColors.SpringGreen;
}
bitmap.SetPixel(x, y, color);
}
}
using (var memoryStream = new SKDynamicMemoryWStream())
{
if (SKPixmap.Encode(memoryStream, bitmap, SKEncodedImageFormat.Png, 100))
{
return(this.Response.FromStream(memoryStream.DetachAsData().AsStream, "image/png"));
}
}
return(null);
}
}
private static SKBitmap CreateLabelAsBitmap(LabelStyle style, string text, SKPaint paint)
{
var rect = new SKRect();
paint.MeasureText(text, ref rect);
var backRect = new SKRect(0, 0, rect.Width + 6, rect.Height + 6);
var bitmap = new SKBitmap((int)backRect.Width, (int)backRect.Height);
using (var target = new SKCanvas(bitmap))
{
target.Clear();
DrawBackground(style, backRect, target);
target.DrawText(text, -rect.Left + 3, -rect.Top +3, paint);
return bitmap;
}
}
public async Task<Tuple<Stream, LoadingResult, ImageInformation>> Resolve(string identifier, TaskParameter parameters, CancellationToken token)
{
ImageSource source = parameters.Source;
if (parameters.LoadingPlaceholderPath == identifier)
source = parameters.LoadingPlaceholderSource;
else if (parameters.ErrorPlaceholderPath == identifier)
source = parameters.ErrorPlaceholderSource;
var resolvedData = await Configuration.DataResolverFactory
.GetResolver(identifier, source, parameters, Configuration)
.Resolve(identifier, parameters, token);
if (resolvedData?.Item1 == null)
throw new FileNotFoundException(identifier);
var svg = new SKSvg()
{
ThrowOnUnsupportedElement = false,
};
SKPicture picture;
using (var svgStream = resolvedData.Item1)
{
picture = svg.Load(resolvedData?.Item1);
}
using (var bitmap = new SKBitmap(200, 200, true))
using (var canvas = new SKCanvas(bitmap))
{
float canvasMin = Math.Min(200, 200);
float svgMax = Math.Max(svg.Picture.Bounds.Width, svg.Picture.Bounds.Height);
float scale = canvasMin / svgMax;
var matrix = SKMatrix.MakeScale(scale, scale);
canvas.DrawPicture(picture, ref matrix);
using (var image = SKImage.FromBitmap(bitmap))
{
var stream = image.Encode()?.AsStream();
return new Tuple<Stream, LoadingResult, ImageInformation>(stream, resolvedData.Item2, resolvedData.Item3);
}
}
}
void CreateGraphicsFromNativeHdc(int width, int height)
{
skBitmap = new SKBitmap(width, height);
skCanvas = new SKCanvas(skBitmap);
//
stroke = new SKPaint();
stroke.IsStroke = true;
//
fill = new SKPaint();
fill.IsStroke = false;
//
textFill = new SKPaint();
textFill.IsAntialias = true;
//---------------------------------------
//---------------------------------------
this.CurrentFont = new RequestFont("tahoma", 14);
this.CurrentTextColor = Color.Black;
//---------------------------------------
}
// ExStart:RenderShapeToGraphics
public static string RenderShapeToGraphics(string dataDir, Shape shape)
{
ShapeRenderer r = shape.GetShapeRenderer();
// Find the size that the shape will be rendered to at the specified scale and resolution.
Size shapeSizeInPixels = r.GetSizeInPixels(1.0f, 96.0f);
// Rotating the shape may result in clipping as the image canvas is too small. Find the longest side
// And make sure that the graphics canvas is large enough to compensate for this.
int maxSide = System.Math.Max(shapeSizeInPixels.Width, shapeSizeInPixels.Height);
using (SkiaSharp.SKBitmap bitmap = new SkiaSharp.SKBitmap((int)(maxSide * 1.25), (int)(maxSide * 1.25)))
{
// Rendering to a graphics object means we can specify settings and transformations to be applied to
// The shape that is rendered. In our case we will rotate the rendered shape.
using (SkiaSharp.SKCanvas gr = new SkiaSharp.SKCanvas(bitmap))
{
// Clear the shape with the background color of the document.
gr.DrawColor(new SkiaSharp.SKColor(shape.Document.PageColor.R, shape.Document.PageColor.G, shape.Document.PageColor.B, shape.Document.PageColor.A));
// Center the rotation using translation method below
gr.Translate((float)bitmap.Width / 8, (float)bitmap.Height / 2);
// Rotate the image by 45 degrees.
gr.RotateDegrees(45);
// Undo the translation.
gr.Translate(-(float)bitmap.Width / 8, -(float)bitmap.Height / 2);
// Render the shape onto the graphics object.
r.RenderToSize(gr, 0, 0, shapeSizeInPixels.Width, shapeSizeInPixels.Height);
}
// Save output to file.
using (System.IO.FileStream fs = System.IO.File.Create(dataDir + "/RenderToSize_Out.png"))
{
SKData d = SKImage.FromBitmap(bitmap).Encode(SKEncodedImageFormat.Png, 100);
d.SaveTo(fs);
}
}
return("\nShape rendered to graphics successfully.\nFile saved at " + dataDir);
}
public BitmapHelper(string path)
{
Bitmap bitmap;
try
{
bitmap = Bitmap.Decode(File.OpenRead(path));
}
catch (Exception)
{
bitmap = new Bitmap(10, 10);
for (int i = 0; i < 10; i++)
{
for (int w = 0; w < 10; w++)
{
bitmap.SetPixel(i, w, SKColors.White);
}
}
}
IntPtr ptr = bitmap.GetPixels();
int bytes = Math.Abs(bitmap.RowBytes) * bitmap.Height;
byte[] rgbValues = new byte[bytes];
System.Runtime.InteropServices.Marshal.Copy(ptr, rgbValues, 0, bytes);
colors = new SKColor[bitmap.Width, bitmap.Height];
for (int counter = 0; counter < rgbValues.Length; counter += 4)
{
int i_am = counter / 4;
colors[i_am % bitmap.Width, i_am / bitmap.Width]
=
new SKColor(
rgbValues[counter + 2],
rgbValues[counter + 1],
rgbValues[counter + 0],
rgbValues[counter + 3]);
}
bitmap.Dispose();
}
public static Image ScaleTest(Image[] vIcons)
{
Bitmap bmp = new Bitmap(1024, vIcons.Length * (256 + 12),
PixelFormat.Format32bppArgb);
using (Graphics g = Graphics.FromImage(bmp))
{
g.Clear(Color.White);
int[] v = new int[] { 16, 24, 32, 48, 64, 128, 256 };
int x;
int y = 8;
foreach (Image imgIcon in vIcons)
{
if (imgIcon == null)
{
Debug.Assert(false); continue;
}
x = 128;
foreach (int q in v)
{
using (Image img = ScaleImage(imgIcon, q, q,
ScaleTransformFlags.UIIcon))
{
g.DrawImageUnscaled(img, x, y);
}
x += q + 8;
}
y += v[v.Length - 1] + 8;
}
}
return(bmp);
}
/// <summary>
/// Combines 2 images into one, given the shared ImageStats for both supplied images.
/// </summary>
/// <param name="info">the ImageStats object used to generate both bottom and top tiles.</param>
/// <param name="bottomTile">the tile to use as the base of the image. Expected to be opaque.</param>
/// <param name="topTile">The tile to layer on top. Expected to be at least partly transparent or translucent.</param>
/// <returns></returns>
public byte[] LayerTiles(ImageStats info, byte[] bottomTile, byte[] topTile)
{
SkiaSharp.SKBitmap bitmap = new SkiaSharp.SKBitmap(info.imageSizeX, info.imageSizeY, SkiaSharp.SKColorType.Rgba8888, SkiaSharp.SKAlphaType.Premul);
SkiaSharp.SKCanvas canvas = new SkiaSharp.SKCanvas(bitmap);
SkiaSharp.SKPaint paint = new SkiaSharp.SKPaint();
canvas.Scale(1, 1, info.imageSizeX / 2, info.imageSizeY / 2);
paint.IsAntialias = true;
var baseBmp = SkiaSharp.SKBitmap.Decode(bottomTile);
var topBmp = SkiaSharp.SKBitmap.Decode(topTile);
canvas.DrawBitmap(baseBmp, 0, 0);
canvas.DrawBitmap(topBmp, 0, 0);
var ms = new MemoryStream();
var skms = new SkiaSharp.SKManagedWStream(ms);
bitmap.Encode(skms, SkiaSharp.SKEncodedImageFormat.Png, 100);
var output = ms.ToArray();
skms.Dispose(); ms.Close(); ms.Dispose();
return(output);
}
private Stream RenderMap(IGameMapInfo map)
{
var terrain = new GameMapTerrain(map.MapName, map.TerrainData);
using (var bitmap = new SkiaSharp.SKBitmap(0x100, 0x100))
{
for (int y = 0; y < 0x100; y++)
{
for (int x = 0; x < 0x100; x++)
{
var color = SKColors.Black;
if (terrain.SafezoneMap[y, x])
{
color = SKColors.Gray;
}
else if (terrain.WalkMap[y, x])
{
color = SKColors.SpringGreen;
}
else
{
// we use the default color.
}
bitmap.SetPixel(x, y, color);
}
}
using (var memoryStream = new SKDynamicMemoryWStream())
{
if (SKPixmap.Encode(memoryStream, bitmap, SKEncodedImageFormat.Png, 100))
{
return(memoryStream.DetachAsData().AsStream());
}
}
return(null);
}
}
public IBitmapImpl LoadBitmap(System.IO.Stream stream)
{
using (var s = new SKManagedStream(stream))
{
using (var codec = SKCodec.Create(s))
{
var info = codec.Info;
var bitmap = new SKBitmap(info.Width, info.Height, SKImageInfo.PlatformColorType, info.IsOpaque ? SKAlphaType.Opaque : SKAlphaType.Premul);
IntPtr length;
var result = codec.GetPixels(bitmap.Info, bitmap.GetPixels(out length));
if (result == SKCodecResult.Success || result == SKCodecResult.IncompleteInput)
{
return new BitmapImpl(bitmap);
}
else
{
throw new ArgumentException("Unable to load bitmap from provided data");
}
}
}
}
public void InsertImageFromImageRelativePosition()
{
//ExStart
//ExFor:DocumentBuilder.InsertImage(Image, RelativeHorizontalPosition, Double, RelativeVerticalPosition, Double, Double, Double, WrapType)
//ExSummary:Shows how to import an image into a document, also using relative positions.
Document doc = new Document();
DocumentBuilder builder = new DocumentBuilder(doc);
#if NETSTANDARD2_0 || __MOBILE__
using (SkiaSharp.SKBitmap rasterImage = SkiaSharp.SKBitmap.Decode(ImageDir + "Aspose.Words.gif"))
{
builder.InsertImage(rasterImage, RelativeHorizontalPosition.Margin, 100, RelativeVerticalPosition.Margin, 100, 200, 100, WrapType.Square);
}
#else
using (Image rasterImage = Image.FromFile(ImageDir + "Aspose.Words.gif"))
{
builder.InsertImage(rasterImage, RelativeHorizontalPosition.Margin, 100, RelativeVerticalPosition.Margin, 100, 200, 100, WrapType.Square);
}
#endif
builder.Document.Save(MyDir + @"\Artifacts\Image.CreateFromImageWithStreamRelativePosition.doc");
//ExEnd
}
public void InsertImageFromImageCustomSize()
{
//ExStart
//ExFor:DocumentBuilder.InsertImage(Image, Double, Double)
//ExSummary:Shows how to import an image into a document, with a custom size.
Document doc = new Document();
DocumentBuilder builder = new DocumentBuilder(doc);
#if NETSTANDARD2_0 || __MOBILE__
using (SkiaSharp.SKBitmap rasterImage = SkiaSharp.SKBitmap.Decode(ImageDir + "Aspose.Words.gif"))
{
builder.InsertImage(rasterImage, ConvertUtil.PixelToPoint(450), ConvertUtil.PixelToPoint(144));
builder.Writeln();
}
#else
using (Image rasterImage = Image.FromFile(ImageDir + "Aspose.Words.gif"))
{
builder.InsertImage(rasterImage, ConvertUtil.PixelToPoint(450), ConvertUtil.PixelToPoint(144));
builder.Writeln();
}
#endif
builder.Document.Save(MyDir + @"\Artifacts\Image.CreateFromImageWithStreamCustomSize.doc");
//ExEnd
}
public SKAutoLockPixels (SKBitmap bitmap)
: this (bitmap, true)
{
}
private static Image ExtractBestImageFromIco(byte[] pb)
{
List <GfxImage> l = UnpackIco(pb);
if ((l == null) || (l.Count == 0))
{
return(null);
}
long qMax = 0;
foreach (GfxImage gi in l)
{
if (gi.Width == 0)
{
gi.Width = 256;
}
if (gi.Height == 0)
{
gi.Height = 256;
}
qMax = Math.Max(qMax, (long)gi.Width * (long)gi.Height);
}
byte[] pbHdrPng = new byte[] {
0x89, 0x50, 0x4E, 0x47, 0x0D, 0x0A, 0x1A, 0x0A
};
byte[] pbHdrJpeg = new byte[] { 0xFF, 0xD8, 0xFF };
Image imgBest = null;
int bppBest = -1;
foreach (GfxImage gi in l)
{
if (((long)gi.Width * (long)gi.Height) < qMax)
{
continue;
}
byte[] pbImg = gi.Data;
Image img = null;
try
{
if ((pbImg.Length > pbHdrPng.Length) &&
MemUtil.ArraysEqual(pbHdrPng,
MemUtil.Mid <byte>(pbImg, 0, pbHdrPng.Length)))
{
img = GfxUtil.LoadImage(pbImg);
}
else if ((pbImg.Length > pbHdrJpeg.Length) &&
MemUtil.ArraysEqual(pbHdrJpeg,
MemUtil.Mid <byte>(pbImg, 0, pbHdrJpeg.Length)))
{
img = GfxUtil.LoadImage(pbImg);
}
else
{
using (MemoryStream ms = new MemoryStream(pb, false))
{
using (Icon ico = new Icon(ms, gi.Width, gi.Height))
{
img = ico.ToBitmap();
}
}
}
}
catch (Exception) { Debug.Assert(false); }
if (img == null)
{
continue;
}
if ((img.Width < gi.Width) || (img.Height < gi.Height))
{
Debug.Assert(false);
img.Dispose();
continue;
}
int bpp = GetBitsPerPixel(img.PixelFormat);
if (bpp > bppBest)
{
if (imgBest != null)
{
imgBest.Dispose();
}
imgBest = img;
bppBest = bpp;
}
else
{
img.Dispose();
}
}
return(imgBest);
}
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 DrawBitmap(SKBitmap bitmap, float x, float y, SKPaint paint = null)
{
if (bitmap == null)
throw new ArgumentNullException ("bitmap");
SkiaApi.sk_canvas_draw_bitmap (Handle, bitmap.Handle, x, y, paint == null ? IntPtr.Zero : paint.Handle);
}
public void DrawBitmapLattice(SKBitmap bitmap, int[] xDivs, int[] yDivs, SKRect dst, SKPaint paint = null)
{
if (bitmap == null)
throw new ArgumentNullException (nameof (bitmap));
if (xDivs == null)
throw new ArgumentNullException (nameof (xDivs));
if (yDivs == null)
throw new ArgumentNullException (nameof (yDivs));
SkiaApi.sk_canvas_draw_bitmap_lattice (Handle, bitmap.Handle, xDivs, xDivs.Length, yDivs, yDivs.Length, ref dst, paint == null ? IntPtr.Zero : paint.Handle);
}
public BitmapImpl(SKBitmap bm)
{
Bitmap = bm;
PixelHeight = bm.Height;
PixelWidth = bm.Width;
}
public BitmapDrawingContext(SKBitmap bitmap) : this(CreateSurface(bitmap))
{
}
public static SKShader CreateBitmap (SKBitmap src, SKShaderTileMode tmx, SKShaderTileMode tmy, SKMatrix localMatrix)
{
if (src == null)
throw new ArgumentNullException (nameof (src));
return GetObject<SKShader> (SkiaApi.sk_shader_new_bitmap (src.Handle, tmx, tmy, ref localMatrix));
}
public unsafe void DrawBitmapLattice (SKBitmap bitmap, SKLattice lattice, SKRect dst, SKPaint paint = null)
{
if (bitmap == null)
throw new ArgumentNullException (nameof (bitmap));
if (lattice.XDivs == null)
throw new ArgumentNullException (nameof (lattice.XDivs));
if (lattice.YDivs == null)
throw new ArgumentNullException (nameof (lattice.YDivs));
fixed (int* x = lattice.XDivs)
fixed (int* y = lattice.YDivs)
fixed (SKLatticeFlags* f = lattice.Flags) {
var nativeLattice = new SKLatticeInternal {
fBounds = null,
fFlags = f,
fXCount = lattice.XDivs.Length,
fXDivs = x,
fYCount = lattice.YDivs.Length,
fYDivs = y,
};
if (lattice.Bounds != null) {
var bounds = lattice.Bounds.Value;
nativeLattice.fBounds = &bounds;
}
SkiaApi.sk_canvas_draw_bitmap_lattice (Handle, bitmap.Handle, ref nativeLattice, ref dst, paint == null ? IntPtr.Zero : paint.Handle);
}
}
public void DrawBitmapLattice (SKBitmap bitmap, int[] xDivs, int[] yDivs, SKRect dst, SKPaint paint = null)
{
var lattice = new SKLattice {
Bounds = null,
Flags = null,
XDivs = xDivs,
YDivs = yDivs
};
DrawBitmapLattice (bitmap, lattice, dst, paint);
}
public override void DrawImage(ActualImage actualImage, double x, double y)
{
//create Gdi bitmap from actual image
int w = actualImage.Width;
int h = actualImage.Height;
switch (actualImage.PixelFormat)
{
case Agg.PixelFormat.ARGB32:
{
using (SKBitmap newBmp = new SKBitmap(actualImage.Width, actualImage.Height))
{
newBmp.LockPixels();
byte[] actualImgBuffer = ActualImage.GetBuffer(actualImage);
System.Runtime.InteropServices.Marshal.Copy(
actualImgBuffer,
0,
newBmp.GetPixels(),
actualImgBuffer.Length);
newBmp.UnlockPixels();
}
//newBmp.internalBmp.LockPixels();
//byte[] actualImgBuffer = ActualImage.GetBuffer(actualImage);
//System.Runtime.InteropServices.Marshal.Copy(
// actualImgBuffer,
// 0,
// newBmp.internalBmp.GetPixels(),
// actualImgBuffer.Length);
//newBmp.internalBmp.UnlockPixels();
//return newBmp;
//copy data from acutal buffer to internal representation bitmap
//using (MySkBmp bmp = MySkBmp.CopyFrom(actualImage))
//{
// _skCanvas.DrawBitmap(bmp.internalBmp, (float)x, (float)y);
//}
}
break;
case Agg.PixelFormat.RGB24:
{
}
break;
case Agg.PixelFormat.GrayScale8:
{
}
break;
default:
throw new NotSupportedException();
}
}
public static void RenderTexture(SKCanvas canvas, SKBitmap bitmap, SKRect rect, float opacity = 1f)
{
var color = new SKColor(255, 255, 255, (byte) (255*opacity));
var paint = new SKPaint {Color = color, FilterQuality = SKFilterQuality.High};
canvas.DrawBitmap(bitmap, rect, paint);
}
public bool Resize(SKBitmap dst, SKBitmapResizeMethod method)
{
return(Resize(dst, this, method));
}
public static Image ScaleImage(Image img, int w, int h)
{
return(ScaleImage(img, w, h, ScaleTransformFlags.None));
}
public SKAutoLockPixels (SKBitmap bitmap, bool doLock)
{
this.bitmap = bitmap;
this.doLock = doLock;
if (bitmap != null && doLock) {
bitmap.LockPixels ();
}
}
public static SKShader CreateBitmap(SKBitmap src, SKShaderTileMode tmx, SKShaderTileMode tmy, SKMatrix localMatrix)
{
return(GetObject <SKShader> (SkiaApi.sk_shader_new_bitmap(src.Handle, tmx, tmy, ref localMatrix)));
}
/// <summary>
/// Perform the unlock now, instead of waiting for the Dispose.
/// Will only do this once.
/// </summary>
public void Unlock ()
{
if (bitmap != null && doLock) {
bitmap.UnlockPixels ();
bitmap = null;
}
}
public bool CopyTo(SKBitmap destination, SKColorType colorType)
{
return(SkiaApi.sk_bitmap_copy(Handle, destination.Handle, colorType));
}
public BitmapImpl(int width, int height)
{
PixelHeight = height;
PixelWidth = width;
Bitmap = new SKBitmap(width, height, SKColorType.N_32, SKAlphaType.Premul);
}
public static SKShader CreateBitmap(SKBitmap src, SKShaderTileMode tmx, SKShaderTileMode tmy)
{
return(GetObject <SKShader> (SkiaApi.sk_shader_new_bitmap(src.Handle, tmx, tmy, IntPtr.Zero)));
}
private static SKSurface CreateSurface(SKBitmap bitmap)
{
IntPtr length;
return SKSurface.Create(bitmap.Info, bitmap.GetPixels(out length), bitmap.RowBytes);
}
public SKBitmap Copy (SKColorType colorType)
{
var destination = new SKBitmap ();
if (!SkiaApi.sk_bitmap_copy (Handle, destination.Handle, colorType)) {
destination.Dispose ();
destination = null;
}
return destination;
}
public void DrawBitmap(SKBitmap bitmap, SKRect source, SKRect dest, SKPaint paint = null)
{
if (bitmap == null)
throw new ArgumentNullException ("bitmap");
SkiaApi.sk_canvas_draw_bitmap_rect (Handle, bitmap.Handle, ref source, ref dest, paint == null ? IntPtr.Zero : paint.Handle);
}
public bool CopyTo (SKBitmap destination, SKColorType colorType)
{
if (destination == null) {
throw new ArgumentNullException (nameof (destination));
}
return SkiaApi.sk_bitmap_copy (Handle, destination.Handle, colorType);
}
public void DrawBitmapNinePatch(SKBitmap bitmap, SKRectI center, SKRect dst, SKPaint paint = null)
{
if (bitmap == null)
throw new ArgumentNullException (nameof (bitmap));
// the "center" rect must fit inside the bitmap "rect"
if (!SKRect.Create (bitmap.Info.Size).Contains (center))
throw new ArgumentOutOfRangeException (nameof (center));
var xDivs = new [] { center.Left, center.Right };
var yDivs = new [] { center.Top, center.Bottom };
DrawBitmapLattice (bitmap, xDivs, yDivs, dst, paint);
}
private void Swap(SKBitmap other)
{
SkiaApi.sk_bitmap_swap(Handle, other.Handle);
}
} // End Function LoadImage
private void DrawImage()
{
int bitness = System.IntPtr.Size * 8;
System.Console.WriteLine(bitness);
// https://developer.xamarin.com/guides/cross-platform/drawing/introduction/
// https://developer.xamarin.com/api/type/SkiaSharp.SKSurface/
// https://forums.xamarin.com/discussion/77883/skiasharp-graphics-basics
// Make sure the Microsoft Visual C++ 2015 Redistributable is installed if this error occurs:
// Unable to load DLL 'libSkiaSharp.dll': The specified module could not be found.
using (SKSurface surface = SKSurface.Create(width: 640, height: 480, colorType: SKColorType.Bgra8888, alphaType: SKAlphaType.Premul))
{
SKCanvas canvas = surface.Canvas;
canvas.Clear(SKColors.Transparent);
using (SKPaint paint = new SKPaint())
{
// paint.ImageFilter = SKImageFilter.CreateBlur(5, 5); // Dispose !
paint.IsAntialias = true;
// paint.Color = new SKColor(0xff, 0x00, 0xff);
paint.Color = new SKColor(0x2c, 0x3e, 0x50);
paint.StrokeCap = SKStrokeCap.Round;
paint.Typeface = SkiaSharp.SKTypeface.FromFamilyName("Impact", SKTypefaceStyle.Bold);
paint.TextSize = 12;
canvas.DrawText("foobar", 10, 10, paint);
// SkiaSharp.SKRect rect = new SkiaSharp.SKRect();
SkiaSharp.SKRect rect = MeasureText("foobar", "Impact", 12, SKTypefaceStyle.Bold);
// paint.MeasureText("foobar", ref rect);
System.Console.WriteLine(rect);
SKRect textOverlayRectangle = new SKRect();
textOverlayRectangle.Left = 9; // x
textOverlayRectangle.Top = 10 - rect.Height; // y
textOverlayRectangle.Right = textOverlayRectangle.Left + rect.Width;
textOverlayRectangle.Bottom = textOverlayRectangle.Top + rect.Height;
// canvas.DrawRect(textOverlayRectangle, paint);
// https://chromium.googlesource.com/external/skia/+/master/experimental/SkiaExamples/HelloSkiaExample.cpp
SkiaSharp.SKPoint[] linearPoints = new SkiaSharp.SKPoint[] {
new SkiaSharp.SKPoint(0, 0),
new SkiaSharp.SKPoint(300, 300)
};
SkiaSharp.SKColor[] linearColors = new SkiaSharp.SKColor[] { SkiaSharp.SKColors.Green, SkiaSharp.SKColors.Black };
// canvas.Restore();
// canvas.Translate(100, 200);
// canvas.RotateDegrees(45);
// SKShader shader = SkiaSharp.SKShader.CreateLinearGradient(linearPoints[0], linearPoints[1], linearColors, new float[] { 1.0f, 2000.0f }, SKShaderTileMode.Repeat);
// paint.Shader = shader;
SkiaSharp.SKBitmap shaderPattern = LoadImage(MapProjectPath(@"~mytile.png"));
SKShader hatchShader = SkiaSharp.SKShader.CreateBitmap(shaderPattern, SKShaderTileMode.Mirror, SKShaderTileMode.Repeat);
paint.Shader = hatchShader;
// create the Xamagon path
using (SKPath path = new SKPath())
{
path.MoveTo(71.4311121f, 56f);
path.CubicTo(68.6763107f, 56.0058575f, 65.9796704f, 57.5737917f, 64.5928855f, 59.965729f);
path.LineTo(43.0238921f, 97.5342563f);
path.CubicTo(41.6587026f, 99.9325978f, 41.6587026f, 103.067402f, 43.0238921f, 105.465744f);
path.LineTo(64.5928855f, 143.034271f);
path.CubicTo(65.9798162f, 145.426228f, 68.6763107f, 146.994582f, 71.4311121f, 147f);
path.LineTo(114.568946f, 147f);
path.CubicTo(117.323748f, 146.994143f, 120.020241f, 145.426228f, 121.407172f, 143.034271f);
path.LineTo(142.976161f, 105.465744f);
path.CubicTo(144.34135f, 103.067402f, 144.341209f, 99.9325978f, 142.976161f, 97.5342563f);
path.LineTo(121.407172f, 59.965729f);
path.CubicTo(120.020241f, 57.5737917f, 117.323748f, 56.0054182f, 114.568946f, 56f);
path.LineTo(71.4311121f, 56f);
path.Close();
// draw the Xamagon path
canvas.DrawPath(path, paint);
} // End Using path
// ClipDeviceBounds not ClipBounds
canvas.DrawLine(0, 0, canvas.ClipDeviceBounds.Width, canvas.ClipDeviceBounds.Height, paint);
canvas.DrawLine(0, canvas.ClipDeviceBounds.Height, canvas.ClipDeviceBounds.Width, 0, paint);
canvas.DrawLine(0 + 1, 0, 0 + 1, canvas.ClipDeviceBounds.Height, paint);
canvas.DrawLine(0, surface.Canvas.ClipDeviceBounds.Height / 2, canvas.ClipDeviceBounds.Width, canvas.ClipDeviceBounds.Height / 2, paint);
canvas.DrawLine(canvas.ClipDeviceBounds.Width - 1, 0 + 1, canvas.ClipDeviceBounds.Width - 1, canvas.ClipDeviceBounds.Height, paint);
} // End Using paint
// Your drawing code goes here.
// surface.Snapshot().Encode(SKImageEncodeFormat.Webp, 80);
// SKData p = surface.Snapshot().Encode();
SKData p = surface.Snapshot().Encode(SKImageEncodeFormat.Png, 80);
// p.SaveTo()
using (System.IO.MemoryStream ms = new System.IO.MemoryStream(p.ToArray()))
{
this.pictureBox1.Image = System.Drawing.Image.FromStream(ms);
} // End Using ms
System.IO.File.WriteAllBytes(MapProjectPath("~testme.png"), p.ToArray());
} // End Using surface
// this.Close();
} // End Sub
public BitmapImpl(int width, int height)
{
PixelHeight = height;
PixelWidth = width;
Bitmap = new SKBitmap(width, height, SKImageInfo.PlatformColorType, SKAlphaType.Premul);
}