public unsafe static ImageInfo?FromStream(Stream stream)
{
int width, height, comp;
var context = new StbImage.stbi__context(stream);
var is16Bit = StbImage.stbi__is_16_main(context) == 1;
StbImage.stbi__rewind(context);
var infoResult = StbImage.stbi__info_main(context, &width, &height, &comp);
StbImage.stbi__rewind(context);
if (infoResult == 0)
{
return(null);
}
return(new ImageInfo
{
Width = width,
Height = height,
ColorComponents = (ColorComponents)comp,
BitsPerChannel = is16Bit ? 16 : 8
});
}
public AnimatedGifEnumerator(Stream input, ColorComponents colorComponents)
{
if (input == null)
{
throw new ArgumentNullException(nameof(input));
}
_context = new StbImage.stbi__context(input);
if (StbImage.stbi__gif_test(_context) == 0)
{
throw new Exception("Input stream is not GIF file.");
}
_gif = new StbImage.stbi__gif();
ColorComponents = colorComponents;
}
public static unsafe ImageResultFloat FromStream(Stream stream, ColorComponents requiredComponents = ColorComponents.Default)
{
float *result = null;
try
{
int x, y, comp;
var context = new StbImage.stbi__context(stream);
result = StbImage.stbi__loadf_main(context, &x, &y, &comp, (int)requiredComponents);
return(FromResult(result, x, y, (ColorComponents)comp, requiredComponents));
}
finally
{
if (result != null)
{
CRuntime.free(result);
}
}
}