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Fix GIF save - last byte

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The last byte was not saved for sure, depending on the codesize.
Also if the codesize was big (12 bits which is the max)
in some case an additional 0 byte was store (which is harmless but
useless)

This bug only appears if the bit per code are < 8
which is possible since commit 834050c2c4cf6ed87f3192fa31f8ae13a704a5b5
This commit is contained in:
Thomas Bernard 2017-12-19 17:17:02 +01:00
parent 834050c2c4
commit ee322ed437
1 changed files with 6 additions and 1 deletions
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7
src/fileformats.c
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@ -3017,7 +3017,12 @@ void Save_GIF(T_IO_Context * context)
GIF_set_code(eof); // 257 for 8bpp // Code de End d'image
if (GIF_remainder_bits!=0)
GIF_set_code(0); // Code bidon permettant de s'assurer que tous les bits du dernier code aient bien étés inscris dans le buffer GIF
{
// WRITE last byte
GIF_buffer[++GIF_remainder_byte]=GIF_last_byte;
GIF_last_byte=0;
GIF_remainder_bits=0;
}
GIF_empty_buffer(); // On envoie les dernières données du buffer GIF dans le buffer KM
// On écrit un \0