/// <summary>
/// Resize the image to the specified width and height.
/// </summary>
/// <param name="image">The image to resize.</param>
/// <param name="width">The width to resize to.</param>
/// <param name="height">The height to resize to.</param>
/// <returns>The resized image.</returns>
public static Bitmap GetAlphaMask(this Bitmap alpha)
{
var alphaData = alpha.GetBGRAData();
var data = new byte[alphaData.Length];
for (int i = 0; i < data.Length; i += 4)
{
data[i] = alphaData[i + 3];
data[i + 1] = alphaData[i + 3];
data[i + 2] = alphaData[i + 3];
data[i + 3] = 255;
}
var bmp = new Bitmap(alpha.Width, alpha.Height);
try
{
BitmapData bmpData = bmp.LockBits(
new Rectangle(0, 0, bmp.Width, bmp.Height),
ImageLockMode.WriteOnly, bmp.PixelFormat);
Marshal.Copy(data, 0, bmpData.Scan0, data.Length);
bmp.UnlockBits(bmpData);
}
catch { bmp.Dispose(); throw; }
return(bmp);
}
/// <summary>
///
/// </summary>
/// <param name="bmp"></param>
/// <returns></returns>
public static byte[] GetRGBAData(this Bitmap bmp)
{
var bytes = bmp.GetBGRAData();
for (int i = 0; i < bytes.Length; i += 4)
{
var temp = bytes[i];
bytes[i] = bytes[i + 2];
bytes[i + 2] = temp;
}
return(bytes);
}
/// <summary>
/// Resize the image to the specified width and height.
/// </summary>
/// <param name="image">The image to resize.</param>
/// <param name="width">The width to resize to.</param>
/// <param name="height">The height to resize to.</param>
/// <returns>The resized image.</returns>
public static void ApplyAlpha(this Bitmap bmp, Bitmap alpha)
{
var alphaData = alpha.GetBGRAData();
var data = bmp.GetBGRAData();
for (int i = 0; i < data.Length; i += 4)
{
data[i + 3] = alphaData[i + 3];
}
try
{
BitmapData bmpData = bmp.LockBits(
new Rectangle(0, 0, bmp.Width, bmp.Height),
ImageLockMode.WriteOnly, bmp.PixelFormat);
Marshal.Copy(data, 0, bmpData.Scan0, data.Length);
bmp.UnlockBits(bmpData);
}
catch { bmp.Dispose(); throw; }
}
/// <summary>
///
/// </summary>
/// <returns></returns>
public static HSD_TOBJ ToTOBJ(this Bitmap bmp, GXTexFmt texFmt, GXTlutFmt palFmt)
{
var tobj = new HSD_TOBJ()
{
MagFilter = GXTexFilter.GX_LINEAR,
Flags = TOBJ_FLAGS.COORD_UV | TOBJ_FLAGS.LIGHTMAP_DIFFUSE | TOBJ_FLAGS.COLORMAP_MODULATE | TOBJ_FLAGS.ALPHAMAP_MODULATE,
HScale = 1,
WScale = 1,
WrapS = GXWrapMode.CLAMP,
WrapT = GXWrapMode.CLAMP,
SX = 1,
SY = 1,
SZ = 1,
GXTexGenSrc = 4,
Blending = 1
};
tobj.EncodeImageData(bmp.GetBGRAData(), bmp.Width, bmp.Height, texFmt, palFmt);
return(tobj);
}
