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"Regular" version now attempts to set desired camera exposure settings

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git-svn-id: https://zxing.googlecode.com/svn/trunk@310 59b500cc-1b3d-0410-9834-0bbf25fbcc57
This commit is contained in:
srowen 2008-03-25 17:03:15 +00:00
parent 3a1e3dc156
commit 7813847052
3 changed files with 54 additions and 15 deletions
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7
javame/src-basic/com/google/zxing/client/j2me/AdvancedMultimediaManager.java
View file

@ -17,7 +17,6 @@
package com.google.zxing.client.j2me; package com.google.zxing.client.j2me;
import javax.microedition.media.Controllable; import javax.microedition.media.Controllable;
import javax.microedition.media.MediaException;
/** /**
* <p>See this exact same class under the "src" source root for a full explanation. * <p>See this exact same class under the "src" source root for a full explanation.
@ -34,7 +33,7 @@ final class AdvancedMultimediaManager {
// These signatures must match those in the other class exactly // These signatures must match those in the other class exactly
static void setFocus(Controllable player) throws MediaException { static void setFocus(Controllable player) {
// do nothing // do nothing
} }
@ -42,4 +41,8 @@ final class AdvancedMultimediaManager {
// do nothing // do nothing
} }
static void setExposure(Controllable player) {
// do nothing
}
} }

61
javame/src/com/google/zxing/client/j2me/AdvancedMultimediaManager.java
View file

@ -16,6 +16,7 @@
package com.google.zxing.client.j2me; package com.google.zxing.client.j2me;
import javax.microedition.amms.control.camera.ExposureControl;
import javax.microedition.amms.control.camera.FocusControl; import javax.microedition.amms.control.camera.FocusControl;
import javax.microedition.amms.control.camera.ZoomControl; import javax.microedition.amms.control.camera.ZoomControl;
import javax.microedition.media.Controllable; import javax.microedition.media.Controllable;
@ -38,30 +39,31 @@ final class AdvancedMultimediaManager {
private static final int NO_ZOOM = 100; private static final int NO_ZOOM = 100;
private static final int MAX_ZOOM = 200; private static final int MAX_ZOOM = 200;
private static final long FOCUS_TIME_MS = 750L; private static final long FOCUS_TIME_MS = 750L;
private static final String DESIRED_METERING = "center-weighted";
private AdvancedMultimediaManager() { private AdvancedMultimediaManager() {
// do nothing // do nothing
} }
static void setFocus(Controllable player) throws MediaException { static void setFocus(Controllable player) {
FocusControl focusControl = (FocusControl) FocusControl focusControl = (FocusControl)
player.getControl("javax.microedition.amms.control.camera.FocusControl"); player.getControl("javax.microedition.amms.control.camera.FocusControl");
if (focusControl != null) { if (focusControl != null) {
if (focusControl.isMacroSupported() && !focusControl.getMacro()) { try {
focusControl.setMacro(true); if (focusControl.isMacroSupported() && !focusControl.getMacro()) {
} focusControl.setMacro(true);
if (focusControl.isAutoFocusSupported()) {
focusControl.setFocus(FocusControl.AUTO);
try {
Thread.sleep(FOCUS_TIME_MS); // let it focus...
} catch (InterruptedException ie) {
// continue
} }
try { if (focusControl.isAutoFocusSupported()) {
focusControl.setFocus(FocusControl.AUTO);
try {
Thread.sleep(FOCUS_TIME_MS); // let it focus...
} catch (InterruptedException ie) {
// continue
}
focusControl.setFocus(FocusControl.AUTO_LOCK); focusControl.setFocus(FocusControl.AUTO_LOCK);
} catch (MediaException me) {
// continue; some phones like the SE K850 don't support this?
} }
} catch (MediaException me) {
// continue
} }
} }
} }
@ -84,4 +86,37 @@ final class AdvancedMultimediaManager {
} }
} }
static void setExposure(Controllable player) {
ExposureControl exposureControl =
(ExposureControl) player.getControl("javax.microedition.amms.control.camera.ExposureControl");
if (exposureControl != null) {
int[] supportedISOs = exposureControl.getSupportedISOs();
if (supportedISOs != null && supportedISOs.length > 0) {
int maxISO = Integer.MIN_VALUE;
for (int i = 0; i < supportedISOs.length; i++) {
if (supportedISOs[i] > maxISO) {
maxISO = supportedISOs[i];
}
}
try {
exposureControl.setISO(maxISO);
} catch (MediaException me) {
// continue
}
}
String[] supportedMeterings = exposureControl.getSupportedLightMeterings();
if (supportedMeterings != null) {
for (int i = 0; i < supportedMeterings.length; i++) {
if (DESIRED_METERING.equals(supportedMeterings[i])) {
exposureControl.setLightMetering(DESIRED_METERING);
break;
}
}
}
}
}
} }

1
javame/src/com/google/zxing/client/j2me/ZXingMIDlet.java
View file

@ -71,6 +71,7 @@ public final class ZXingMIDlet extends MIDlet {
player = createPlayer(); player = createPlayer();
player.realize(); player.realize();
AdvancedMultimediaManager.setZoom(player); AdvancedMultimediaManager.setZoom(player);
AdvancedMultimediaManager.setExposure(player);
videoControl = (VideoControl) player.getControl("VideoControl"); videoControl = (VideoControl) player.getControl("VideoControl");
canvas = new VideoCanvas(this); canvas = new VideoCanvas(this);
canvas.setFullScreenMode(true); canvas.setFullScreenMode(true);