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get_surface_from_b64data() for svg images: create cairo surface only if filter_data() went successfully

This commit is contained in:
stefan schippers 2024-10-28 12:12:11 +01:00
parent 9894d31437
commit 17146a7cf7
1 changed files with 10 additions and 4 deletions
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14
src/draw.c
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@ -4385,16 +4385,22 @@ static cairo_surface_t *get_surface_from_b64data(const char *attr, size_t attr_l
} else if(jpg == 2) { /* svg */
size_t filtered_img_size = 0;
char *filtered_img_data = NULL;
filter_data((char *)closure.buffer, closure.size, &filtered_img_data, &filtered_img_size, filter);
int ret =
filter_data((char *)closure.buffer, closure.size, &filtered_img_data, &filtered_img_size, filter);
my_free(_ALLOC_ID_, &closure.buffer);
closure.buffer = (unsigned char *)filtered_img_data;
closure.size = filtered_img_size;
closure.pos = 0;
surface = cairo_image_surface_create_from_png_stream(png_reader, &closure);
if(!ret) {
surface = cairo_image_surface_create_from_png_stream(png_reader, &closure);
} else {
surface = NULL;
if(closure.buffer) my_free(_ALLOC_ID_, &closure.buffer);
return NULL;;
}
}
if(!surface || cairo_surface_status(surface) != CAIRO_STATUS_SUCCESS) {
if(jpg != 1)
dbg(0, "get_surface_from_b64data(): failure creating image surface from \"image_data\" attribute\n");
dbg(0, "get_surface_from_b64data(): failure creating image surface from \"image_data\" attribute\n");
if(surface) cairo_surface_destroy(surface);
surface = NULL;
}