diff options
Diffstat (limited to 'src')
| -rw-r--r-- | src/jpeg.c | 17 |
1 files changed, 16 insertions, 1 deletions
@@ -27,6 +27,12 @@ static void error_exit(j_common_ptr cinfo){ exit(1); } +static void error_longjmp(j_common_ptr cinfo){ + struct error_mgr *myerr = (struct error_mgr *)cinfo->err; + (*cinfo->err->output_message)(cinfo); + longjmp(myerr->jmp_buffer, 1); +} + static struct image *jpeg_open(FILE *f){ struct jpeg_t *j; @@ -39,7 +45,10 @@ static struct image *jpeg_open(FILE *f){ rewind(f); j->cinfo.err = jpeg_std_error(&j->jerr.pub); - j->jerr.pub.error_exit = error_exit; + j->jerr.pub.error_exit = error_longjmp; + if (setjmp(j->jerr.jmp_buffer)) { + return NULL; + } jpeg_create_decompress(&j->cinfo); jpeg_stdio_src(&j->cinfo, f); @@ -56,6 +65,7 @@ static struct image *jpeg_open(FILE *f){ j->img.bufwidth = j->cinfo.output_width; j->img.bufheight = j->cinfo.output_height; + j->jerr.pub.error_exit = error_exit; return (struct image *)j; } @@ -65,6 +75,11 @@ static int jpeg_read(struct image *img){ int a = 0, b; unsigned int x, y; + j->jerr.pub.error_exit = error_longjmp; + if(setjmp(j->jerr.jmp_buffer)){ + return 1; /* ERROR */ + } + row_stride = j->cinfo.output_width * j->cinfo.output_components; jpeg_start_decompress(&j->cinfo); |