Java Code Examples for android.graphics.ColorMatrix#getArray()

The following examples show how to use android.graphics.ColorMatrix#getArray() . You can vote up the ones you like or vote down the ones you don't like, and go to the original project or source file by following the links above each example. You may check out the related API usage on the sidebar.
Example 1
Source File: ColorPickerDialog.java    From AndroidDrawing with MIT License 6 votes vote down vote up 
private int rotateColor(int color, float rad) {
    float deg = rad * 180 / 3.1415927f;
    int r = Color.red(color);
    int g = Color.green(color);
    int b = Color.blue(color);

    ColorMatrix cm = new ColorMatrix();
    ColorMatrix tmp = new ColorMatrix();

    cm.setRGB2YUV();
    tmp.setRotate(0, deg);
    cm.postConcat(tmp);
    tmp.setYUV2RGB();
    cm.postConcat(tmp);

    final float[] a = cm.getArray();

    int ir = floatToByte(a[0] * r + a[1] * g + a[2] * b);
    int ig = floatToByte(a[5] * r + a[6] * g + a[7] * b);
    int ib = floatToByte(a[10] * r + a[11] * g + a[12] * b);

    return Color.argb(Color.alpha(color), pinToByte(ir),
            pinToByte(ig), pinToByte(ib));
}
Example 2
Source File: ColorPickerDialog.java    From geopaparazzi with GNU General Public License v3.0 6 votes vote down vote up 
@SuppressWarnings("unused")
private int rotateColor(int color, float rad) {
    float deg = rad * 180 / 3.1415927f;
    int r = Color.red(color);
    int g = Color.green(color);
    int b = Color.blue(color);

    ColorMatrix cm = new ColorMatrix();
    ColorMatrix tmp = new ColorMatrix();

    cm.setRGB2YUV();
    tmp.setRotate(0, deg);
    cm.postConcat(tmp);
    tmp.setYUV2RGB();
    cm.postConcat(tmp);

    final float[] a = cm.getArray();

    int ir = floatToByte(a[0] * r + a[1] * g + a[2] * b);
    int ig = floatToByte(a[5] * r + a[6] * g + a[7] * b);
    int ib = floatToByte(a[10] * r + a[11] * g + a[12] * b);

    return Color.argb(Color.alpha(color), pinToByte(ir),
            pinToByte(ig), pinToByte(ib));
}
Example 3
Source File: FastBitmapDrawable.java    From Trebuchet with GNU General Public License v3.0 5 votes vote down vote up 
private static void setBrightnessMatrix(ColorMatrix matrix, int brightness) {
    // Brightness: C-new = C-old*(1-amount) + amount
    float scale = 1 - brightness / 255.0f;
    matrix.setScale(scale, scale, scale, 1);
    float[] array = matrix.getArray();

    // Add the amount to RGB components of the matrix, as per the above formula.
    // Fifth elements in the array correspond to the constant being added to
    // red, blue, green, and alpha channel respectively.
    array[4] = brightness;
    array[9] = brightness;
    array[14] = brightness;
}
Example 4
Source File: FastBitmapDrawable.java    From FastAccess with GNU General Public License v3.0 5 votes vote down vote up 
private static void setBrightnessMatrix(ColorMatrix matrix, int brightness) {
    // Brightness: C-new = C-old*(1-amount) + amount
    float scale = 1 - brightness / 255.0f;
    matrix.setScale(scale, scale, scale, 1);
    float[] array = matrix.getArray();

    // Add the amount to RGB components of the matrix, as per the above formula.
    // Fifth elements in the array correspond to the constant being added to
    // red, blue, green, and alpha channel respectively.
    array[4] = brightness;
    array[9] = brightness;
    array[14] = brightness;
}
Example 5
Source File: FastBitmapDrawable.java    From LB-Launcher with Apache License 2.0 5 votes vote down vote up 
private static void setBrightnessMatrix(ColorMatrix matrix, int brightness) {
    // Brightness: C-new = C-old*(1-amount) + amount
    float scale = 1 - brightness / 255.0f;
    matrix.setScale(scale, scale, scale, 1);
    float[] array = matrix.getArray();

    // Add the amount to RGB components of the matrix, as per the above formula.
    // Fifth elements in the array correspond to the constant being added to
    // red, blue, green, and alpha channel respectively.
    array[4] = brightness;
    array[9] = brightness;
    array[14] = brightness;
}
Example 6
Source File: ColorMatrices.java    From cathode with Apache License 2.0 5 votes vote down vote up 
static void setContrast(ColorMatrix colorMatrix, float contrast) {
  float translate = (1f - contrast) / 2f;

  float[] array = colorMatrix.getArray();
  array[ROW_RED + COLUMN_RED] = contrast;
  array[ROW_GREEN + COLUMN_GREEN] = contrast;
  array[ROW_BLUE + COLUMN_BLUE] = contrast;

  array[ROW_RED + COLUMN_TRANSLATE] = translate;
  array[ROW_GREEN + COLUMN_TRANSLATE] = translate;
  array[ROW_BLUE + COLUMN_TRANSLATE] = translate;
}