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SF1in #142422.

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This commit is contained in:
pnunn 1998-06-19 00:05:19 +00:00
parent 6730df8ced
commit 76b7869a6a
1 changed files with 5 additions and 1 deletions
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6
modules/libimg/src/gif.c
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@ -706,7 +706,7 @@ gif_clear_screen(gif_struct *gs)
int src_trans_pixel_index;
uint8 *rowbuf = gs->rowbuf;
NI_PixmapHeader *src_header = ic->src_header;
IL_IRGB *saved_src_trans_pixel;
IL_IRGB *saved_src_trans_pixel, *saved_img_trans_pixel;
/* Catch images that fall outside the logical screen. */
if ((erase_x_offset + erase_width) > gs->screen_width)
@ -714,12 +714,15 @@ gif_clear_screen(gif_struct *gs)
/* We have to temporarily pretend the image is transparent
so we can clear using the context's background color. */
saved_img_trans_pixel = ic->image->header.transparent_pixel;
saved_src_trans_pixel = src_header->transparent_pixel;
src_header->transparent_pixel = NULL;
ic->image->header.transparent_pixel = NULL;
/* Pick an index for the source image's temporary transparent pixel.
The actual choice is immaterial since it will only be used for
the clear screen operation. */
src_trans_pixel_index = 0;
if (!il_gif_init_transparency(ic, src_trans_pixel_index))
return MK_OUT_OF_MEMORY;
@ -739,6 +742,7 @@ gif_clear_screen(gif_struct *gs)
/* Reset the source image's transparent pixel to its former state. */
il_gif_destroy_transparency(ic);
src_header->transparent_pixel = saved_src_trans_pixel;
ic->image->header.transparent_pixel = saved_img_trans_pixel;
}
return 0;
}