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Cast unsigned gif coords to signed, for comparison.

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svn path=/trunk/netsurf/; revision=11892
This commit is contained in:
Michael Drake 2011-03-02 21:09:28 +00:00
parent 9e1916ad61
commit 6c758cd298
1 changed files with 8 additions and 6 deletions
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14
image/gif.c
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@ -293,24 +293,26 @@ void nsgif_animate(void *p)
/* previous frame needed clearing: expand the redraw area to
* cover it */
if (data.redraw.full_redraw) {
if (data.redraw.x > gif->frames[f - 1].redraw_x) {
if (data.redraw.x >
(int)(gif->frames[f - 1].redraw_x)) {
data.redraw.width += data.redraw.x -
gif->frames[f - 1].redraw_x;
data.redraw.x = gif->frames[f - 1].redraw_x;
}
if (data.redraw.y > gif->frames[f - 1].redraw_y) {
if (data.redraw.y >
(int)(gif->frames[f - 1].redraw_y)) {
data.redraw.height += (data.redraw.y -
gif->frames[f - 1].redraw_y);
data.redraw.y = gif->frames[f - 1].redraw_y;
}
if ((gif->frames[f - 1].redraw_x +
if ((int)(gif->frames[f - 1].redraw_x +
gif->frames[f - 1].redraw_width) >
(data.redraw.x + data.redraw.width))
data.redraw.width =
gif->frames[f - 1].redraw_x -
data.redraw.x +
gif->frames[f - 1].redraw_width;
if ((gif->frames[f - 1].redraw_y +
if ((int)(gif->frames[f - 1].redraw_y +
gif->frames[f - 1].redraw_height) >
(data.redraw.y + data.redraw.height))
data.redraw.height =
@ -322,8 +324,8 @@ void nsgif_animate(void *p)
} else {
/* do advanced check */
if ((data.redraw.x == 0) && (data.redraw.y == 0) &&
(data.redraw.width == gif->width) &&
(data.redraw.height == gif->height)) {
(data.redraw.width == (int)(gif->width)) &&
(data.redraw.height == (int)(gif->height))) {
data.redraw.full_redraw = !gif->frames[f].opaque;
} else {
data.redraw.full_redraw = true;