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Fix layering of small gif frames

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This commit is contained in:
Bert Münnich 2011-09-28 12:53:44 +02:00
parent 0a91ede86c
commit d369f10aa5
2 changed files with 7 additions and 7 deletions
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2
Makefile
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@ -1,4 +1,4 @@
VERSION = git-20110926
VERSION = git-20110928
CC = gcc
CFLAGS = -Wall -pedantic -O2

12
image.c
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@ -173,6 +173,9 @@ bool img_load_gif(img_t *img, const fileinfo_t *file) {
delay = 10 * ((unsigned int) ext[3] << 8 | (unsigned int) ext[2]);
if (delay)
delay = MAX(delay, MIN_GIF_DELAY);
/* TODO: handle disposal method, section 23.c.iv of
http://www.w3.org/Graphics/GIF/spec-gif89a.txt */
}
ext = NULL;
DGifGetExtensionNext(gif, &ext);
@ -209,12 +212,9 @@ bool img_load_gif(img_t *img, const fileinfo_t *file) {
for (i = 0; i < sh; i++) {
for (j = 0; j < sw; j++) {
if (i < y || i >= y + h || j < x || j >= x + w) {
if (transp >= 0 && prev_frame)
*ptr = prev_frame[i * sw + j];
else
*ptr = bgpixel;
} else if (rows[i-y][j-x] == transp) {
if (i < y || i >= y + h || j < x || j >= x + w ||
rows[i-y][j-x] == transp)
{
if (prev_frame)
*ptr = prev_frame[i * sw + j];
else