gistfile1.c

#if 1
#if 0
		if (stbir_info->flags&STBIR_FLAG_ALPHA_USES_COLORSPACE)
		{
			for (; x < max_x; x++)
			{
				int decode_pixel_index = x * channels;
				int input_pixel_index = stbir__edge_wrap(edge_horizontal, x, input_w) * channels;
				for (c = 0; c < channels; c++)
					decode_buffer[decode_pixel_index + c] = stbir__srgb_uchar_to_linear_float[((const unsigned char*)input_data)[input_pixel_index + c]];
			}
		}
		else
		{
			int color_channels[STBIR_MAX_CHANNELS] = { 0 };
			int current = 0;

			for (c = 0; c < channels - 1; c++)
			{
				if (c == alpha_channel)
					continue;

				color_channels[current++] = c;
			}

			for (; x < max_x; x++)
			{
				int decode_pixel_index = x * channels;
				int input_pixel_index = stbir__edge_wrap(edge_horizontal, x, input_w) * channels;
				for (c = 0; c < channels - 1; c++)
				{
					int real_c = color_channels[c];
					decode_buffer[decode_pixel_index + real_c] = stbir__srgb_uchar_to_linear_float[((const unsigned char*)input_data)[input_pixel_index + real_c]];
				}

				decode_buffer[decode_pixel_index + alpha_channel] = ((float)((const unsigned char*)input_data)[input_pixel_index + alpha_channel]) / 255;
			}
		}
		break;
#else
#if 0
		{int special_alpha = !(stbir_info->flags&STBIR_FLAG_ALPHA_USES_COLORSPACE);
		for (; x < max_x; x++)
		{
			int decode_pixel_index = x * channels;
			int input_pixel_index = stbir__edge_wrap(edge_horizontal, x, input_w) * channels;
			for (c = 0; c < channels; c++)
			{
				if (c == alpha_channel && special_alpha)
					decode_buffer[decode_pixel_index + alpha_channel] = ((float)((const unsigned char*)input_data)[input_pixel_index + alpha_channel]) / 255;
				else
					decode_buffer[decode_pixel_index + c] = stbir__srgb_uchar_to_linear_float[((const unsigned char*)input_data)[input_pixel_index + c]];
			}
		}}
		break;
#else
#if 1
		if (!(stbir_info->flags&STBIR_FLAG_ALPHA_USES_COLORSPACE))
		{
			for (; x < max_x; x++)
			{
				int decode_pixel_index = x * channels;
				int input_pixel_index = stbir__edge_wrap(edge_horizontal, x, input_w) * channels;
				for (c = 0; c < channels; c++)
					decode_buffer[decode_pixel_index + c] = stbir__srgb_uchar_to_linear_float[((const unsigned char*)input_data)[input_pixel_index + c]];

				decode_buffer[decode_pixel_index + alpha_channel] = ((float)((const unsigned char*)input_data)[input_pixel_index + alpha_channel]) / 255;
			}
		}
		else
		{
			for (; x < max_x; x++)
			{
				int decode_pixel_index = x * channels;
				int input_pixel_index = stbir__edge_wrap(edge_horizontal, x, input_w) * channels;
				for (c = 0; c < channels; c++)
					decode_buffer[decode_pixel_index + c] = stbir__srgb_uchar_to_linear_float[((const unsigned char*)input_data)[input_pixel_index + c]];
			}
		}
		break;
#else
		for (c = 0; c < channels; c++)
		{
			if (c == alpha_channel)
				continue;

			for (; x < max_x; x++)
			{
				int decode_pixel_index = x * channels;
				int input_pixel_index = stbir__edge_wrap(edge_horizontal, x, input_w) * channels;
				decode_buffer[decode_pixel_index + c] = stbir__srgb_uchar_to_linear_float[((const unsigned char*)input_data)[input_pixel_index + c]];
			}
		}

		if (!(stbir_info->flags&STBIR_FLAG_ALPHA_USES_COLORSPACE))
		{
			int x = -stbir__get_filter_pixel_margin_horizontal(stbir_info);
			for (; x < max_x; x++)
			{
				int decode_pixel_index = x * channels;
				int input_pixel_index = stbir__edge_wrap(edge_horizontal, x, input_w) * channels;
				decode_buffer[decode_pixel_index + alpha_channel] = ((float)((const unsigned char*)input_data)[input_pixel_index + alpha_channel]) / 255;
			}
		}
		break;
#endif
#endif
#endif
#else
		for (; x < max_x; x++)
		{
			int decode_pixel_index = x * channels;
			int input_pixel_index = stbir__edge_wrap(edge_horizontal, x, input_w) * channels;
			for (c = 0; c < channels; c++)
				decode_buffer[decode_pixel_index + c] = stbir__srgb_uchar_to_linear_float[((const unsigned char*)input_data)[input_pixel_index + c]];

			if (!(stbir_info->flags&STBIR_FLAG_ALPHA_USES_COLORSPACE))
				decode_buffer[decode_pixel_index + alpha_channel] = ((float)((const unsigned char*)input_data)[input_pixel_index + alpha_channel]) / 255;
		}
		break;
#endif