TonemapCurve

CHANNEL_BLUE

static val CHANNEL_BLUE: Int

Index of the blue color channel curve.

Value: 2

CHANNEL_GREEN

static val CHANNEL_GREEN: Int

Index of the green color channel curve.

Value: 1

CHANNEL_RED

static val CHANNEL_RED: Int

Index of the red color channel curve.

Value: 0

LEVEL_BLACK

static val LEVEL_BLACK: Float

Lower bound tonemap value corresponding to pure black for a single color channel.

Value: 0.0f

LEVEL_WHITE

static val LEVEL_WHITE: Float

Upper bound tonemap value corresponding to a pure white for a single color channel.

Value: 1.0f

POINT_SIZE

static val POINT_SIZE: Int

Number of elements in a (Pin, Pout) point;

Value: 2

TonemapCurve

TonemapCurve(
    red: FloatArray!, 
    green: FloatArray!, 
    blue: FloatArray!)

Create a new immutable TonemapCurve instance.

Values are stored as a contiguous array of (Pin, Pout) points.

All parameters may have independent length but should have at most CameraCharacteristics#TONEMAP_MAX_CURVE_POINTS * {@value #POINT_SIZE} elements and at least 2 * {@value #POINT_SIZE} elements.

All sub-elements must be in the inclusive range of [{@value #LEVEL_BLACK}, {@value #LEVEL_WHITE}].

This constructor copies the array contents and does not retain ownership of the array.

copyColorCurve

fun copyColorCurve(
    colorChannel: Int, 
    destination: FloatArray!, 
    offset: Int
): Unit

Copy the color curve for a single color channel from this tonemap curve into the destination.

Values are stored as packed (Pin, Pout) points, and there are a total of getPointCount points for that respective channel.

All returned coordinates are between the range of [{@value #LEVEL_BLACK}, {@value #LEVEL_WHITE}].

equals

fun equals(other: Any?): Boolean

Check if this TonemapCurve is equal to another TonemapCurve.

Two matrices are equal if and only if all of their elements are equal.

getPoint

fun getPoint(
    colorChannel: Int, 
    index: Int
): PointF!

Get the point for a color channel at a specified index.

The index must be at least 0 but no greater than getPointCount(int) for that colorChannel.

All returned coordinates in the point are between the range of [{@value #LEVEL_BLACK}, {@value #LEVEL_WHITE}].

getPointCount

fun getPointCount(colorChannel: Int): Int

Get the number of points stored in this tonemap curve for the specified color channel.

hashCode

fun hashCode(): Int

Returns a hash code value for the object. This method is supported for the benefit of hash tables such as those provided by java.util.HashMap.

The general contract of hashCode is:

• Whenever it is invoked on the same object more than once during an execution of a Java application, the hashCode method must consistently return the same integer, provided no information used in equals comparisons on the object is modified. This integer need not remain consistent from one execution of an application to another execution of the same application.
• If two objects are equal according to the equals method, then calling the hashCode method on each of the two objects must produce the same integer result.
• It is not required that if two objects are unequal according to the equals method, then calling the hashCode method on each of the two objects must produce distinct integer results. However, the programmer should be aware that producing distinct integer results for unequal objects may improve the performance of hash tables.

toString

fun toString(): String

Return the TonemapCurve as a string representation.

"TonemapCurve{R:[(%f, %f), (%f, %f) ... (%f, %f)], G:[(%f, %f), (%f, %f) ... (%f, %f)], B:[(%f, %f), (%f, %f) ... (%f, %f)]}", where each (%f, %f) respectively represents one point of the corresponding tonemap curve.