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Clean up on exit, and convert to singly-linked-lists

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This adds fp_exit() to the public API, intended to be called while the
driving app is shutting down.
This commit is contained in:
Daniel Drake
2007-11-13 14:32:31 +00:00
parent a76f55db0d
commit a86cd51959
10 changed files with 94 additions and 44 deletions
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24
examples/img_capture_continuous.c
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@@ -153,25 +153,25 @@ int main(void)
discovered_devs = fp_discover_devs();
if (!discovered_devs) {
fprintf(stderr, "Could not discover devices\n");
exit(1);
goto out;
}
ddev = discover_device(discovered_devs);
if (!ddev) {
fprintf(stderr, "No devices detected.\n");
exit(1);
goto out;
}
dev = fp_dev_open(ddev);
fp_dscv_devs_free(discovered_devs);
if (!dev) {
fprintf(stderr, "Could not open device.\n");
exit(1);
goto out;
}
if (!fp_dev_supports_imaging(dev)) {
fprintf(stderr, "this device does not have imaging capabilities.\n");
goto out;
goto out_close;
}
img_width = fp_dev_get_img_width(dev);
@@ -179,24 +179,24 @@ int main(void)
if (img_width <= 0 || img_height <= 0) {
fprintf(stderr, "this device returns images with variable dimensions,"
" this example does not support that.\n");
goto out;
goto out_close;
}
framebuffer = malloc(img_width * img_height * 2);
if (!framebuffer)
goto out;
goto out_close;
/* make the window */
display = XOpenDisplay(getenv("DISPLAY"));
if(display == NULL) {
fprintf(stderr,"Could not open display \"%s\"\n",
getenv("DISPLAY"));
goto out;
goto out_close;
}
QueryXv();
if (adaptor < 0)
goto out;
goto out_close;
window = XCreateSimpleWindow(display, DefaultRootWindow(display), 0, 0,
img_width, img_height, 0,
@@ -216,7 +216,7 @@ int main(void)
r = fp_dev_img_capture(dev, 1, &img);
if (r) {
fprintf(stderr, "image capture failed, code %d\n", r);
goto out;
goto out_close;
}
if (standardize)
fp_img_standardize(img);
@@ -234,7 +234,7 @@ int main(void)
case XK_q:
case XK_Q:
r = 0;
goto out;
goto out_close;
break;
case XK_s:
case XK_S:
@@ -245,7 +245,7 @@ int main(void)
}
r = 0;
out:
out_close:
if (framebuffer)
free(framebuffer);
fp_dev_close(dev);
@@ -253,6 +253,8 @@ out:
XUnmapWindow(display, window);
if (display != NULL)
XFlush(display);
out:
fp_exit();
return r;
}