Function AllocImage

DevIL/src-IL/src/il_dds.cpp:681–765

ILboolean AllocImage(ILuint CompFormat)
{
	ILubyte channels = 4;
	ILenum format = IL_RGBA;

	switch (CompFormat)
	{
		case PF_RGB:
			if (!ilTexImage(Width, Height, Depth, 3, IL_RGB, IL_UNSIGNED_BYTE, NULL))
				return IL_FALSE;
			break;
		case PF_ARGB:
			if (!ilTexImage(Width, Height, Depth, 4, IL_RGBA, Has16BitComponents ? IL_UNSIGNED_SHORT : IL_UNSIGNED_BYTE, NULL))
				return IL_FALSE;
			break;

		case PF_LUMINANCE:
			if (Head.RGBBitCount == 16 && Head.RBitMask == 0xFFFF) { //HACK
				if (!ilTexImage(Width, Height, Depth, 1, IL_LUMINANCE, IL_UNSIGNED_SHORT, NULL))
					return IL_FALSE;
			}
			else
				if (!ilTexImage(Width, Height, Depth, 1, IL_LUMINANCE, IL_UNSIGNED_BYTE, NULL))
					return IL_FALSE;
			break;

		case PF_LUMINANCE_ALPHA:
			if (!ilTexImage(Width, Height, Depth, 2, IL_LUMINANCE_ALPHA, IL_UNSIGNED_BYTE, NULL))
				return IL_FALSE;
			break;

		case PF_ATI1N:
			//right now there's no OpenGL api to use the compressed 3dc data, so
			//throw it away (I don't know how DirectX works, though)?
			if (!ilTexImage(Width, Height, Depth, 1, IL_LUMINANCE, IL_UNSIGNED_BYTE, NULL))
				return IL_FALSE;
			break;

		case PF_3DC:
			//right now there's no OpenGL api to use the compressed 3dc data, so
			//throw it away (I don't know how DirectX works, though)?
			if (!ilTexImage(Width, Height, Depth, 3, IL_RGB, IL_UNSIGNED_BYTE, NULL))
				return IL_FALSE;
			break;

		case PF_A16B16G16R16:
			if (!ilTexImage(Width, Height, Depth, iCompFormatToChannelCount(CompFormat),
				ilGetFormatBpp(iCompFormatToChannelCount(CompFormat)), IL_UNSIGNED_SHORT, NULL))
				return IL_FALSE;
			break;

		case PF_R16F:
		case PF_G16R16F:
		case PF_A16B16G16R16F:
		case PF_R32F:
		case PF_G32R32F:
		case PF_A32B32G32R32F:
			if (!ilTexImage(Width, Height, Depth, iCompFormatToChannelCount(CompFormat),