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copy again gphoto2-java to the project as I suspect my modding causes…
… the issue that the app cannot reach the camera always gets gp_camera_get_config failed with GP_ERROR_IO_USB_CLAIM #-53: Could not claim the USB device
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,145 @@ | ||
| /** | ||
| * Java bindings for the libgphoto2 library. | ||
| * Copyright (C) 2011 Innovatrics s.r.o. | ||
| * | ||
| * This library is free software; you can redistribute it and/or | ||
| * modify it under the terms of the GNU Lesser General Public | ||
| * License as published by the Free Software Foundation; either | ||
| * version 2.1 of the License, or (at your option) any later version. | ||
| * | ||
| * This library is distributed in the hope that it will be useful, | ||
| * but WITHOUT ANY WARRANTY; without even the implied warranty of | ||
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | ||
| * Lesser General Public License for more details. | ||
| * | ||
| * You should have received a copy of the GNU Lesser General Public | ||
| * License along with this library; if not, write to the Free Software | ||
| * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA | ||
| */ | ||
| package org.gphoto2; | ||
|
|
||
| import com.sun.jna.Pointer; | ||
| import com.sun.jna.ptr.PointerByReference; | ||
| import java.io.Closeable; | ||
| import java.util.regex.Pattern; | ||
| import org.gphoto2.jna.GPhoto2Native; | ||
|
|
||
| /** | ||
| * Lists connected cameras. | ||
| * @author Martin Vysny | ||
| */ | ||
| public class CameraList implements Closeable { | ||
|
|
||
| public static final Pointer CONTEXT; | ||
|
|
||
| static { | ||
| CONTEXT = GPhoto2Native.INSTANCE.gp_context_new(); | ||
| if (CONTEXT == null) { | ||
| throw new RuntimeException("Failed to get context"); | ||
| } | ||
| } | ||
| private final Pointer list; | ||
|
|
||
| /** | ||
| * Enumerates connected cameras. | ||
| */ | ||
| public CameraList() { | ||
| list = newList(); | ||
| populateList(); | ||
| } | ||
|
|
||
| private static Pointer newList() { | ||
| final PointerByReference ref = new PointerByReference(); | ||
| CameraUtils.check(GPhoto2Native.INSTANCE.gp_list_new(ref), "gp_list_new"); | ||
| return ref.getValue(); | ||
| } | ||
| private static final Pattern USB_MATCH = Pattern.compile("usb:\\d+,\\d+"); | ||
|
|
||
| private void populateList() { | ||
| final Pointer tempList = newList(); | ||
| try { | ||
| final PointerByReference ref = new PointerByReference(); | ||
| CameraUtils.check(GPhoto2Native.INSTANCE.gp_abilities_list_new(ref), "gp_abilities_list_new"); | ||
| final Pointer cameraAbilitiesList = ref.getValue(); | ||
| try { | ||
| final PointerByReference ref2 = new PointerByReference(); | ||
| CameraUtils.check(GPhoto2Native.INSTANCE.gp_port_info_list_new(ref2), "gp_port_info_list_new"); | ||
| final Pointer portInfoList = ref2.getValue(); | ||
| try { | ||
| CameraUtils.check(GPhoto2Native.INSTANCE.gp_port_info_list_load(portInfoList), "gp_port_info_list_load"); | ||
| CameraUtils.check(GPhoto2Native.INSTANCE.gp_abilities_list_load(cameraAbilitiesList, CONTEXT), "gp_abilities_list_load"); | ||
| CameraUtils.check(GPhoto2Native.INSTANCE.gp_abilities_list_detect(cameraAbilitiesList, portInfoList, tempList, CONTEXT), "gp_abilities_list_detect"); | ||
| final int count = CameraUtils.check(GPhoto2Native.INSTANCE.gp_list_count(tempList), "gp_list_count"); | ||
| for (int i = 0; i < count; i++) { | ||
| final PointerByReference pmodel = new PointerByReference(); | ||
| CameraUtils.check(GPhoto2Native.INSTANCE.gp_list_get_name(tempList, i, pmodel), "gp_list_get_name"); | ||
| final String model = pmodel.getValue().getString(0); | ||
| final PointerByReference pvalue = new PointerByReference(); | ||
| CameraUtils.check(GPhoto2Native.INSTANCE.gp_list_get_value(tempList, i, pvalue), "gp_list_get_value"); | ||
| final String path = pvalue.getValue().getString(0); | ||
| if (USB_MATCH.matcher(path).matches()) { | ||
| CameraUtils.check(GPhoto2Native.INSTANCE.gp_list_append(list, model, path), "gp_list_append"); | ||
| } | ||
| } | ||
| } finally { | ||
| GPhoto2Native.INSTANCE.gp_port_info_list_free(portInfoList); | ||
| } | ||
| } finally { | ||
| GPhoto2Native.INSTANCE.gp_abilities_list_free(cameraAbilitiesList); | ||
| } | ||
| } finally { | ||
| GPhoto2Native.INSTANCE.gp_list_free(tempList); | ||
| } | ||
| } | ||
|
|
||
| /** | ||
| * Returns a displayable name of the camera. | ||
| * @param i the camera index, must be 0 .. {@link #getCount()} - 1. | ||
| * @return the displayable camera name, never null, for example Canon EOS 1000D | ||
| */ | ||
| public String getModel(int i) { | ||
| final PointerByReference pmodel = new PointerByReference(); | ||
| CameraUtils.check(GPhoto2Native.INSTANCE.gp_list_get_name(list, i, pmodel), "gp_list_get_name"); | ||
| return pmodel.getValue().getString(0); | ||
| } | ||
|
|
||
| /** | ||
| * Returns a displayable name of the port to which the camera is connected. | ||
| * @param i the camera index, must be 0 .. {@link #getCount()} - 1. | ||
| * @return the displayable camera name, never null, for example usb:002,019 | ||
| */ | ||
| public String getPort(int i) { | ||
| final PointerByReference pvalue = new PointerByReference(); | ||
| CameraUtils.check(GPhoto2Native.INSTANCE.gp_list_get_value(list, i, pvalue), "gp_list_get_value"); | ||
| return pvalue.getValue().getString(0); | ||
| } | ||
|
|
||
| /** | ||
| * Returns connected camera count. | ||
| * @return connected camera count. | ||
| */ | ||
| public int getCount() { | ||
| return CameraUtils.check(GPhoto2Native.INSTANCE.gp_list_count(list), "gp_list_count"); | ||
| } | ||
|
|
||
| @Override | ||
| public String toString() { | ||
| final StringBuilder sb = new StringBuilder(); | ||
| sb.append("CameraList["); | ||
| for (int i = 0; i < getCount(); i++) { | ||
| sb.append(getModel(i)).append(':').append(getPort(i)).append(", "); | ||
| } | ||
| sb.append("]"); | ||
| return sb.toString(); | ||
| } | ||
|
|
||
| public void close() { | ||
| CameraUtils.check(GPhoto2Native.INSTANCE.gp_list_free(list), "gp_list_free"); | ||
| } | ||
|
|
||
| public Pointer getPortInfo(int index) { | ||
| final PointerByReference result = new PointerByReference(); | ||
| CameraUtils.check(GPhoto2Native.INSTANCE.gp_port_info_list_get_info(list, index, result), "gp_port_info_list_get_info"); | ||
| return result.getValue(); | ||
| } | ||
| } |
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