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simplify png cleanup

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This commit is contained in:
Markus Teich
2015-11-11 18:49:57 +01:00
parent 67ec8b1547
commit f6455efd52
1 changed files with 16 additions and 8 deletions
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24
sent.c
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@ -79,6 +79,7 @@ typedef struct {
} Shortcut;
static Image *pngopen(char *filename);
static void pngfree(Image *img);
static int pngread(Image *img);
static int pngprepare(Image *img);
static void pngscale(Image *img);
@ -146,14 +147,9 @@ Image *pngopen(char *filename)
free(img);
return NULL;
}
if (!(img->info_ptr = png_create_info_struct(img->png_ptr))) {
png_destroy_read_struct(&img->png_ptr, NULL, NULL);
free(img);
return NULL;
}
if (setjmp(png_jmpbuf(img->png_ptr))) {
png_destroy_read_struct(&img->png_ptr, &img->info_ptr, NULL);
free(img);
if (!(img->info_ptr = png_create_info_struct(img->png_ptr))
|| setjmp(png_jmpbuf(img->png_ptr))) {
pngfree(img);
return NULL;
}
@ -167,6 +163,12 @@ Image *pngopen(char *filename)
return img;
}
void pngfree(Image *img)
{
png_destroy_read_struct(&img->png_ptr, img->info_ptr ? &img->info_ptr : NULL, NULL);
free(img);
}
int pngread(Image *img)
{
unsigned int y;
@ -330,6 +332,8 @@ void getfontsize(char *str, unsigned int *width, unsigned int *height)
void cleanup()
{
unsigned int i;
drw_scm_free(sc);
drw_free(d);
@ -337,6 +341,10 @@ void cleanup()
XSync(xw.dpy, False);
XCloseDisplay(xw.dpy);
if (slides) {
for (i = 0; i < slidecount; i++) {
if (slides[i].img)
pngfree(slides[i].img);
}
free(slides);
slides = NULL;
}