Function ilCopyPixels3D

DevIL/src-IL/src/il_manip.cpp:463–514

Copies a 3d block of pixels to the buffer pointed to by Data.

// Copies a 3d block of pixels to the buffer pointed to by Data.
ILboolean ilCopyPixels3D(ILuint XOff, ILuint YOff, ILuint ZOff, ILuint Width, ILuint Height, ILuint Depth, void *Data)
{
	ILuint	x, y, z, c, NewBps, DataBps, NewSizePlane, NewH, NewD, NewXOff, PixBpp;
	ILubyte	*Temp = (ILubyte*)Data, *TempData = iCurImage->Data;

	if (ilIsEnabled(IL_ORIGIN_SET)) {
		if ((ILenum)ilGetInteger(IL_ORIGIN_MODE) != iCurImage->Origin) {
			TempData = iGetFlipped(iCurImage);
			if (TempData == NULL)
				return IL_FALSE;
		}
	}

	PixBpp = iCurImage->Bpp * iCurImage->Bpc;

	if (iCurImage->Width < XOff + Width)
		NewBps = (iCurImage->Width - XOff) * PixBpp;
	else
		NewBps = Width * PixBpp;

	if (iCurImage->Height < YOff + Height)
		NewH = iCurImage->Height - YOff;
	else
		NewH = Height;

	if (iCurImage->Depth < ZOff + Depth)
		NewD = iCurImage->Depth - ZOff;
	else
		NewD = Depth;

	DataBps = Width * PixBpp;
	NewSizePlane = NewBps * NewH;

	NewXOff = XOff * PixBpp;

	for (z = 0; z < NewD; z++) {
		for (y = 0; y < NewH; y++) {
			for (x = 0; x < NewBps; x += PixBpp) {
				for (c = 0; c < PixBpp; c++) {
					Temp[z * NewSizePlane + y * DataBps + x + c] = 
						TempData[(z + ZOff) * iCurImage->SizeOfPlane + (y + YOff) * iCurImage->Bps + x + NewXOff + c];
						//TempData[(z + ZOff) * iCurImage->SizeOfPlane + (y + YOff) * iCurImage->Bps + (x + XOff) * iCurImage->Bpp + c];
				}
			}
		}
	}

	if (TempData != iCurImage->Data)
		ifree(TempData);

	return IL_TRUE;
}


ILuint ILAPIENTRY ilCopyPixels(ILuint XOff, ILuint YOff, ILuint ZOff, ILuint Width, ILuint Height, ILuint Depth, ILenum Format, ILenum Type, void *Data)