public unsafe static Image LoadFromMemory(IntPtr pSource, int size, bool makeACopy, GCHandle?handle)
{
using (var memoryStream = new UnmanagedMemoryStream((byte *)pSource, size))
using (var bitmap = (Bitmap)BitmapFactory.DecodeStream(memoryStream))
{
var bitmapData = bitmap.LockPixels();
var image = Image.New2D(bitmap.Width, bitmap.Height, 1, PixelFormat.B8G8R8A8_UNorm, 1, bitmap.RowBytes);
#if SILICONSTUDIO_PARADOX_GRAPHICS_API_OPENGLES
// Directly load image as RGBA instead of BGRA, because OpenGL ES devices don't support it out of the box (extension).
CopyMemoryBGRA(image.PixelBuffer[0].DataPointer, bitmapData, image.PixelBuffer[0].BufferStride);
#else
Utilities.CopyMemory(image.PixelBuffer[0].DataPointer, bitmapData, image.PixelBuffer[0].BufferStride);
#endif
bitmap.UnlockPixels();
if (handle != null)
{
handle.Value.Free();
}
else if (!makeACopy)
{
Utilities.FreeMemory(pSource);
}
return(image);
}
}
public unsafe static Image LoadFromMemory(IntPtr pSource, int size, bool makeACopy, GCHandle?handle)
{
using (var memoryStream = new UnmanagedMemoryStream((byte *)pSource, size))
using (var bitmap = (Bitmap)System.Drawing.Image.FromStream(memoryStream))
{
var sourceArea = new Rectangle(0, 0, bitmap.Width, bitmap.Height);
// Lock System.Drawing.Bitmap
var bitmapData = bitmap.LockBits(sourceArea, ImageLockMode.ReadOnly, System.Drawing.Imaging.PixelFormat.Format32bppPArgb);
var image = Image.New2D(bitmap.Width, bitmap.Height, 1, PixelFormat.B8G8R8A8_UNorm, 1, bitmapData.Stride);
// var dataRect = new DataRectangle(bitmapData.Stride, bitmapData.Scan0);
try
{
#if SILICONSTUDIO_PARADOX_GRAPHICS_API_OPENGLES && SILICONSTUDIO_PLATFORM_WINDOWS_DESKTOP
// Directly load image as RGBA instead of BGRA, because OpenGL ES devices don't support it out of the box (extension).
image.Description.Format = PixelFormat.R8G8B8A8_UNorm;
CopyMemoryBGRA(image.PixelBuffer[0].DataPointer, bitmapData.Scan0, image.PixelBuffer[0].BufferStride);
#else
Utilities.CopyMemory(image.PixelBuffer[0].DataPointer, bitmapData.Scan0, image.PixelBuffer[0].BufferStride);
#endif
}
finally
{
bitmap.UnlockBits(bitmapData);
if (handle != null)
{
handle.Value.Free();
}
else if (!makeACopy)
{
Utilities.FreeMemory(pSource);
}
}
return(image);
}
}
public static Image LoadFromMemory(IntPtr pSource, int size, bool makeACopy, GCHandle?handle)
{
using (var imagedata = NSData.FromBytes(pSource, (uint)size))
using (var cgImage = new UIImage(imagedata).CGImage)
{
var image = Image.New2D((int)cgImage.Width, (int)cgImage.Height, 1, PixelFormat.R8G8B8A8_UNorm, 1, (int)cgImage.BytesPerRow);
using (var context = new CGBitmapContext(image.PixelBuffer[0].DataPointer, cgImage.Width, cgImage.Height, 8, cgImage.Width * 4, cgImage.ColorSpace, CGBitmapFlags.PremultipliedLast))
{
context.DrawImage(new RectangleF(0, 0, cgImage.Width, cgImage.Height), cgImage);
if (handle != null)
{
handle.Value.Free();
}
else if (!makeACopy)
{
Utilities.FreeMemory(pSource);
}
return(image);
}
}
}
