Function DecompressFloat

DevIL/src-IL/src/il_dds.cpp:1628–1665

ILboolean DecompressFloat(ILuint lCompFormat)
{
	ILuint i, j, Size;

	switch (lCompFormat)
	{
		case PF_R32F:  // Red float, green = blue = max
			Size = Image->Width * Image->Height * Image->Depth * 3;
			for (i = 0, j = 0; i < Size; i += 3, j++) {
				((ILfloat*)Image->Data)[i] = ((ILfloat*)CompData)[j];
				((ILfloat*)Image->Data)[i+1] = 1.0f;
				((ILfloat*)Image->Data)[i+2] = 1.0f;
			}
			return IL_TRUE;
		case PF_A32B32G32R32F:  // Direct copy of float RGBA data
			memcpy(Image->Data, CompData, Image->SizeOfData);
			return IL_TRUE;
		case PF_G32R32F:  // Red float, green float, blue = max
			Size = Image->Width * Image->Height * Image->Depth * 3;
			for (i = 0, j = 0; i < Size; i += 3, j += 2) {
				((ILfloat*)Image->Data)[i] = ((ILfloat*)CompData)[j];
				((ILfloat*)Image->Data)[i+1] = ((ILfloat*)CompData)[j+1];
				((ILfloat*)Image->Data)[i+2] = 1.0f;
			}
			return IL_TRUE;
		case PF_R16F:  // Red float, green = blue = max
			return iConvR16ToFloat32((ILuint*)Image->Data, (ILushort*)CompData,
				Image->Width * Image->Height * Image->Depth * Image->Bpp);
		case PF_A16B16G16R16F:  // Just convert from half to float.
			return iConvFloat16ToFloat32((ILuint*)Image->Data, (ILushort*)CompData,
				Image->Width * Image->Height * Image->Depth * Image->Bpp);
		case PF_G16R16F:  // Convert from half to float, set blue = max.
			return iConvG16R16ToFloat32((ILuint*)Image->Data, (ILushort*)CompData,
				Image->Width * Image->Height * Image->Depth * Image->Bpp);
		default:
			return IL_FALSE;
	}
}


void CorrectPreMult()