void focus() {
std::cout << "Focusing\n";
//first, focus to farthest possible
set_config_value_string(camera, "output", "PC", context);
for (int i=0; i < MAX_FOCUS_STEPS; i++)
set_config_value_string(camera, "manualfocusdrive", "Far 3", context);
int last_quality = -1;
int quality = -1;
char c='A';
while(1) {
capture_to_file(FOCUS_FILE+c, FOCUS_EXPTIME, FOCUS_ISO);
quality = focus_quality(FOCUS_FILE +c+ "G.fits");
std::cout << quality << std::endl;
if (quality < 0.95*last_quality) break;
set_config_value_string(camera, "manualfocusdrive", "Near 2", context);
last_quality = quality;
c++;
}
//we actually moved past focus by one step, so go back
set_config_value_string(camera, "manualfocusdrive", "Far 1", context);
capture_to_file("final_focus", FOCUS_EXPTIME, FOCUS_ISO);
std::cout << focus_quality("final_focusG.fits") << std::endl;
set_config_value_string(camera, "output", "TFT", context);
std::cout << "Focused!\n";
return;
}
int
main(int argc, char **argv) {
Camera *canon;
int retval;
GPContext *canoncontext = sample_create_context();
gettimeofday(&starttime,NULL);
gp_log_add_func(GP_LOG_ERROR, errordumper, NULL);
gp_camera_new(&canon);
/* When I set GP_LOG_DEBUG instead of GP_LOG_ERROR above, I noticed that the
* init function seems to traverse the entire filesystem on the camera. This
* is partly why it takes so long.
* (Marcus: the ptp2 driver does this by default currently.)
*/
printf("Camera init. Takes about 10 seconds.\n");
retval = gp_camera_init(canon, canoncontext);
if (retval != GP_OK) {
printf(" Retval: %d\n", retval);
exit (1);
}
canon_enable_capture(canon, TRUE, canoncontext);
/*set_capturetarget(canon, canoncontext);*/
capture_to_file(canon, canoncontext, "foo.jpg");
gp_camera_exit(canon, canoncontext);
return 0;
}
void test_focus(bool near) {
set_config_value_string(camera, "output", "PC", context);
int quality = -1;
if (near) set_config_value_string(camera, "manualfocusdrive", "Near 1", context);
else set_config_value_string(camera, "manualfocusdrive", "Far 1", context);
capture_to_file(FOCUS_FILE, FOCUS_EXPTIME, FOCUS_ISO);
quality = focus_quality(FOCUS_FILE + "G.fits");
std::cout << quality << std::endl;
set_config_value_string(camera, "output", "TFT", context);
return;
}
int
main(int argc, char **argv) {
Camera *camera;
int retval;
GPContext *context = sample_create_context();
FILE *f;
char *data;
unsigned long size;
gp_log_add_func(GP_LOG_ERROR, errordumper, NULL);
gp_camera_new(&camera);
/* When I set GP_LOG_DEBUG instead of GP_LOG_ERROR above, I noticed that the
* init function seems to traverse the entire filesystem on the camera. This
* is partly why it takes so long.
* (Marcus: the ptp2 driver does this by default currently.)
*/
printf("Camera init. Takes about 10 seconds.\n");
retval = gp_camera_init(camera, context);
if (retval != GP_OK) {
printf(" Retval of capture_to_file: %d\n", retval);
exit (1);
}
capture_to_file(camera, context, "foo.jpg");
capture_to_memory(camera, context, (const char**)&data, &size);
f = fopen("foo2.jpg", "wb");
if (f) {
retval = fwrite (data, size, 1, f);
if (retval != size) {
printf(" fwrite size %ld, written %d\n", size, retval);
}
fclose(f);
} else
printf(" fopen foo2.jpg failed.\n");
gp_camera_exit(camera, context);
return 0;
}
