nsgif__colour_table_extract()

static nsgif_error fl::third_party::nsgif__colour_table_extract ( fl::u32 colour_table[NSGIF_MAX_COLOURS], const struct nsgif_colour_layout * layout, fl::size colour_table_entries, const fl::u8 * data, fl::size data_len, fl::size * used, bool decode )

inlinestatic

Extract a GIF colour table into a LibNSGIF colour table buffer.

Parameters

[in]	colour_table	The colour table to populate.
[in]	layout	The target pixel format to decode to.
[in]	colour_table_entries	The number of colour table entries.
[in]	data	Current position in data.
[in]	data_len	The available length of data.
[out]	used	Number of colour table bytes read.
[in]	decode	Whether to decode the colour table.

Returns

NSGIF_OK on success, appropriate error otherwise.

Definition at line 1115 of file gif.cpp.hpp.

{
    if (data_len < colour_table_entries * 3) {
        return NSGIF_ERR_END_OF_DATA;
    }
 
    if (decode) {
        nsgif__colour_table_decode(colour_table, layout,
                colour_table_entries, data);
    }
 
    *used = colour_table_entries * 3;
    return NSGIF_OK;
}

References FL_NOEXCEPT, nsgif__colour_table_decode(), NSGIF_ERR_END_OF_DATA, NSGIF_MAX_COLOURS, and NSGIF_OK.

Referenced by nsgif__parse_colour_table(), and nsgif_data_scan().

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