internal void SaveAsImage(Stream stream, int width, int height, ImageWriterFormat format)
{
if (stream == null)
{
throw new ArgumentNullException("stream", "'stream' cannot be null (Nothing in Visual Basic)");
}
if (width <= 0)
{
throw new ArgumentOutOfRangeException("width", width, "'width' cannot be less than or equal to zero");
}
if (height <= 0)
{
throw new ArgumentOutOfRangeException("height", height, "'height' cannot be less than or equal to zero");
}
byte[] data = null;
try
{
data = new byte[width * height * 4];
GetData(data);
var writer = new ImageWriter();
writer.Write(data, width, height, 4, format, stream);
}
finally
{
if (data != null)
{
data = null;
}
}
}
public void Write(byte[] bytes, int x, int y, int comp, ImageWriterFormat format, Stream dest)
{
try {
_stream = dest;
fixed(byte *b = &bytes[0])
{
switch (format)
{
case ImageWriterFormat.Bmp:
Imaging.stbi_write_bmp_to_func(WriteCallback, null, x, y, comp, b);
break;
case ImageWriterFormat.Tga:
Imaging.stbi_write_tga_to_func(WriteCallback, null, x, y, comp, b);
break;
case ImageWriterFormat.Jpg:
Imaging.stbi_write_jpg_to_func(WriteCallback, null, x, y, comp, b, 90);
break;
case ImageWriterFormat.Png:
Imaging.stbi_write_png_to_func(WriteCallback, null, x, y, comp, b, x * comp);
break;
default:
throw new ArgumentOutOfRangeException("format", format, null);
}
}
}
finally {
_stream = null;
}
}
public void Write(Image image, ImageWriterFormat format, Stream dest)
{
if (image?.Data == null)
{
throw new ArgumentNullException(nameof(image));
}
try
{
_stream = dest;
fixed(byte *b = &image.Data[0])
{
switch (format)
{
case ImageWriterFormat.Bmp:
Stb.stbi_write_bmp_to_func(WriteCallback, null, image.Width, image.Height, image.Comp, b);
break;
case ImageWriterFormat.Tga:
Stb.stbi_write_tga_to_func(WriteCallback, null, image.Width, image.Height, image.Comp, b);
break;
case ImageWriterFormat.Hdr:
{
var f = new float[image.Data.Length];
for (var i = 0; i < image.Data.Length; ++i)
{
f[i] = image.Data[i] / 255.0f;
}
fixed(float *fptr = f)
{
Stb.stbi_write_hdr_to_func(WriteCallback, null, image.Width, image.Height, image.Comp, fptr);
}
}
break;
case ImageWriterFormat.Png:
Stb.stbi_write_png_to_func(WriteCallback, null, image.Width, image.Height, image.Comp, b, image.Width * image.Comp);
break;
default:
throw new ArgumentOutOfRangeException(nameof(format), format, null);
}
}
}
finally
{
_stream = null;
}
}
private unsafe void SaveAsImage(Stream stream, int width, int height, ImageWriterFormat format)
{
if (stream == null)
{
throw new ArgumentNullException("stream", "'stream' cannot be null (Nothing in Visual Basic)");
}
if (width <= 0)
{
throw new ArgumentOutOfRangeException("width", width, "'width' cannot be less than or equal to zero");
}
if (height <= 0)
{
throw new ArgumentOutOfRangeException("height", height, "'height' cannot be less than or equal to zero");
}
Color[] data = null;
try
{
data = GetColorData();
// Write
fixed(Color *ptr = &data[0])
{
var writer = new ImageWriter();
switch (format)
{
case ImageWriterFormat.Jpg:
writer.WriteJpg(ptr, width, height, StbImageWriteSharp.ColorComponents.RedGreenBlueAlpha, stream, 90);
break;
case ImageWriterFormat.Png:
writer.WritePng(ptr, width, height, StbImageWriteSharp.ColorComponents.RedGreenBlueAlpha, stream);
break;
}
}
}
finally
{
if (data != null)
{
data = null;
}
}
}
