Example 1 with Area
use of android.hardware.Camera.Area in project platform_frameworks_base by android.
the class ParameterUtils method convertMeteringRectangleToLegacy.
/**
* Calculate the actual/effective/reported normalized rectangle data from a metering
* rectangle.
*
* <p>If any of the rectangles are out-of-range of their intended bounding box,
* the {@link #RECTANGLE_EMPTY empty rectangle} is substituted instead
* (with a weight of {@code 0}).</p>
*
* <p>The metering rectangle is bound by the crop region (effective/reported respectively).
* The metering {@link Camera.Area area} is bound by {@code [-1000, 1000]}.</p>
*
* <p>No parameters are mutated; returns the new metering data.</p>
*
* @param activeArraySize active array size of the sensor (e.g. max jpeg size)
* @param meteringRect the user-specified metering rectangle
* @param zoomData the calculated zoom data corresponding to this request
*
* @return the metering area, the reported/effective metering rectangles
*/
public static MeteringData convertMeteringRectangleToLegacy(Rect activeArray, MeteringRectangle meteringRect, ZoomData zoomData) {
Rect previewCrop = zoomData.previewCrop;
float scaleW = (NORMALIZED_RECTANGLE_MAX - NORMALIZED_RECTANGLE_MIN) * 1.0f / previewCrop.width();
float scaleH = (NORMALIZED_RECTANGLE_MAX - NORMALIZED_RECTANGLE_MIN) * 1.0f / previewCrop.height();
Matrix transform = new Matrix();
// Move the preview crop so that top,left is at (0,0), otherwise after scaling
// the corner bounds will be outside of [-1000, 1000]
transform.setTranslate(-previewCrop.left, -previewCrop.top);
// Scale into [0, 2000] range about the center of the preview
transform.postScale(scaleW, scaleH);
// Move so that top left of a typical rect is at [-1000, -1000]
transform.postTranslate(/*dx*/
NORMALIZED_RECTANGLE_MIN, /*dy*/
NORMALIZED_RECTANGLE_MIN);
/*
* Calculate the preview metering region (effective), and the camera1 api
* normalized metering region.
*/
Rect normalizedRegionUnbounded = ParamsUtils.mapRect(transform, meteringRect.getRect());
/*
* Try to intersect normalized area with [-1000, 1000] rectangle; otherwise
* it's completely out of range
*/
Rect normalizedIntersected = new Rect(normalizedRegionUnbounded);
Camera.Area meteringArea;
if (!normalizedIntersected.intersect(NORMALIZED_RECTANGLE_DEFAULT)) {
Log.w(TAG, "convertMeteringRectangleToLegacy - metering rectangle too small, " + "no metering will be done");
normalizedIntersected.set(RECTANGLE_EMPTY);
meteringArea = new Camera.Area(RECTANGLE_EMPTY, MeteringRectangle.METERING_WEIGHT_DONT_CARE);
} else {
meteringArea = new Camera.Area(normalizedIntersected, meteringRect.getMeteringWeight());
}
/*
* Calculate effective preview metering region
*/
Rect previewMetering = meteringRect.getRect();
if (!previewMetering.intersect(previewCrop)) {
previewMetering.set(RECTANGLE_EMPTY);
}
/*
* Calculate effective reported metering region
* - Transform the calculated metering area back into active array space
* - Clip it to be a subset of the reported crop region
*/
Rect reportedMetering;
{
Camera.Area normalizedAreaUnbounded = new Camera.Area(normalizedRegionUnbounded, meteringRect.getMeteringWeight());
WeightedRectangle reportedMeteringRect = convertCameraAreaToActiveArrayRectangle(activeArray, zoomData, normalizedAreaUnbounded, /*usePreviewCrop*/
false);
reportedMetering = reportedMeteringRect.rect;
}
if (DEBUG) {
Log.v(TAG, String.format("convertMeteringRectangleToLegacy - activeArray = %s, meteringRect = %s, " + "previewCrop = %s, meteringArea = %s, previewMetering = %s, " + "reportedMetering = %s, normalizedRegionUnbounded = %s", activeArray, meteringRect, previewCrop, stringFromArea(meteringArea), previewMetering, reportedMetering, normalizedRegionUnbounded));
}
return new MeteringData(meteringArea, previewMetering, reportedMetering);
}Example 2 with Area
use of android.hardware.Camera.Area in project platform_frameworks_base by android.
the class ParameterUtils method stringFromAreaList.
/**
* Convert a camera area list into a human-readable string
* @param areaList a list of areas (null is ok)
*/
public static String stringFromAreaList(List<Camera.Area> areaList) {
StringBuilder sb = new StringBuilder();
if (areaList == null) {
return null;
}
int i = 0;
for (Camera.Area area : areaList) {
if (area == null) {
sb.append("null");
} else {
sb.append(stringFromArea(area));
}
if (i != areaList.size() - 1) {
sb.append(", ");
}
i++;
}
return sb.toString();
}Example 3 with Area
use of android.hardware.Camera.Area in project android_frameworks_base by DirtyUnicorns.
the class ParameterUtils method stringFromAreaList.
/**
* Convert a camera area list into a human-readable string
* @param areaList a list of areas (null is ok)
*/
public static String stringFromAreaList(List<Camera.Area> areaList) {
StringBuilder sb = new StringBuilder();
if (areaList == null) {
return null;
}
int i = 0;
for (Camera.Area area : areaList) {
if (area == null) {
sb.append("null");
} else {
sb.append(stringFromArea(area));
}
if (i != areaList.size() - 1) {
sb.append(", ");
}
i++;
}
return sb.toString();
}Example 4 with Area
use of android.hardware.Camera.Area in project android_frameworks_base by AOSPA.
the class ParameterUtils method stringFromAreaList.
/**
* Convert a camera area list into a human-readable string
* @param areaList a list of areas (null is ok)
*/
public static String stringFromAreaList(List<Camera.Area> areaList) {
StringBuilder sb = new StringBuilder();
if (areaList == null) {
return null;
}
int i = 0;
for (Camera.Area area : areaList) {
if (area == null) {
sb.append("null");
} else {
sb.append(stringFromArea(area));
}
if (i != areaList.size() - 1) {
sb.append(", ");
}
i++;
}
return sb.toString();
}Example 5 with Area
use of android.hardware.Camera.Area in project android_frameworks_base by AOSPA.
the class ParameterUtils method convertMeteringRectangleToLegacy.
/**
* Calculate the actual/effective/reported normalized rectangle data from a metering
* rectangle.
*
* <p>If any of the rectangles are out-of-range of their intended bounding box,
* the {@link #RECTANGLE_EMPTY empty rectangle} is substituted instead
* (with a weight of {@code 0}).</p>
*
* <p>The metering rectangle is bound by the crop region (effective/reported respectively).
* The metering {@link Camera.Area area} is bound by {@code [-1000, 1000]}.</p>
*
* <p>No parameters are mutated; returns the new metering data.</p>
*
* @param activeArraySize active array size of the sensor (e.g. max jpeg size)
* @param meteringRect the user-specified metering rectangle
* @param zoomData the calculated zoom data corresponding to this request
*
* @return the metering area, the reported/effective metering rectangles
*/
public static MeteringData convertMeteringRectangleToLegacy(Rect activeArray, MeteringRectangle meteringRect, ZoomData zoomData) {
Rect previewCrop = zoomData.previewCrop;
float scaleW = (NORMALIZED_RECTANGLE_MAX - NORMALIZED_RECTANGLE_MIN) * 1.0f / previewCrop.width();
float scaleH = (NORMALIZED_RECTANGLE_MAX - NORMALIZED_RECTANGLE_MIN) * 1.0f / previewCrop.height();
Matrix transform = new Matrix();
// Move the preview crop so that top,left is at (0,0), otherwise after scaling
// the corner bounds will be outside of [-1000, 1000]
transform.setTranslate(-previewCrop.left, -previewCrop.top);
// Scale into [0, 2000] range about the center of the preview
transform.postScale(scaleW, scaleH);
// Move so that top left of a typical rect is at [-1000, -1000]
transform.postTranslate(/*dx*/
NORMALIZED_RECTANGLE_MIN, /*dy*/
NORMALIZED_RECTANGLE_MIN);
/*
* Calculate the preview metering region (effective), and the camera1 api
* normalized metering region.
*/
Rect normalizedRegionUnbounded = ParamsUtils.mapRect(transform, meteringRect.getRect());
/*
* Try to intersect normalized area with [-1000, 1000] rectangle; otherwise
* it's completely out of range
*/
Rect normalizedIntersected = new Rect(normalizedRegionUnbounded);
Camera.Area meteringArea;
if (!normalizedIntersected.intersect(NORMALIZED_RECTANGLE_DEFAULT)) {
Log.w(TAG, "convertMeteringRectangleToLegacy - metering rectangle too small, " + "no metering will be done");
normalizedIntersected.set(RECTANGLE_EMPTY);
meteringArea = new Camera.Area(RECTANGLE_EMPTY, MeteringRectangle.METERING_WEIGHT_DONT_CARE);
} else {
meteringArea = new Camera.Area(normalizedIntersected, meteringRect.getMeteringWeight());
}
/*
* Calculate effective preview metering region
*/
Rect previewMetering = meteringRect.getRect();
if (!previewMetering.intersect(previewCrop)) {
previewMetering.set(RECTANGLE_EMPTY);
}
/*
* Calculate effective reported metering region
* - Transform the calculated metering area back into active array space
* - Clip it to be a subset of the reported crop region
*/
Rect reportedMetering;
{
Camera.Area normalizedAreaUnbounded = new Camera.Area(normalizedRegionUnbounded, meteringRect.getMeteringWeight());
WeightedRectangle reportedMeteringRect = convertCameraAreaToActiveArrayRectangle(activeArray, zoomData, normalizedAreaUnbounded, /*usePreviewCrop*/
false);
reportedMetering = reportedMeteringRect.rect;
}
if (DEBUG) {
Log.v(TAG, String.format("convertMeteringRectangleToLegacy - activeArray = %s, meteringRect = %s, " + "previewCrop = %s, meteringArea = %s, previewMetering = %s, " + "reportedMetering = %s, normalizedRegionUnbounded = %s", activeArray, meteringRect, previewCrop, stringFromArea(meteringArea), previewMetering, reportedMetering, normalizedRegionUnbounded));
}
return new MeteringData(meteringArea, previewMetering, reportedMetering);
}