Java Bitmap.getARGB方法代码示例

import net.rim.device.api.system.Bitmap; //导入方法依赖的package包/类
private static void drawPixels(Bitmap src, int[][] m, int destX, int destY) {
    int[] data = new int[m.length * m.length];
    src.getARGB(data, 0, m.length, destX, destY, m.length, m.length);

    for (int y = destY; y < destY + m.length; ++y) {
        for (int x = destX; x < destX + m[y - destY].length; ++x) {
            int pos = m.length * (y - destY) + x - destX;
            int b = data[pos] % RoundAngles.E1;
            int g = (data[pos] - b) / 256 % RoundAngles.E1;
            int r = (data[pos] - b - RoundAngles.E1 * g) / RoundAngles.E2 % RoundAngles.E1;
            data[pos] = m[y - destY][x - destX] * RoundAngles.E3 + b + g * RoundAngles.E1 + r
                    * RoundAngles.E2;
        }
    }

    src.setARGB(data, 0, m.length, destX, destY, m.length, m.length);
}
 

import net.rim.device.api.system.Bitmap; //导入方法依赖的package包/类
/**
 * Creates a bitmap that is a copy of a portion of an existing bitmap.
 *
 * @param src    the source bitmap
 * @param x      the x offset
 * @param y      the y offset
 * @param width  the width to copy
 * @param height the height to copy
 * @return a new Bitmap that is a copy of the specified portion of the specified bitmap
 */
private Bitmap copyBitmapSection(Bitmap src, int x, int y, int width, int height) {
  if (x < 0 || y < 0 || x + width > src.getWidth() || y + height > src.getHeight()) {
    throw new IllegalArgumentException(
        "must not specify a rectangle that falls outside of the source bitmap");
  }

  Bitmap dst = new Bitmap(width, height);

  int[] raw = new int[width * height];
  src.getARGB(raw, 0, width, x, y, width, height);
  dst.setARGB(raw, 0, width, 0, 0, width, height);

  return dst;
}
 

import net.rim.device.api.system.Bitmap; //导入方法依赖的package包/类
public void getRGB(Object nativeImage, int[] arr, int offset, int x, int y, int width, int height) {
    Bitmap b = (Bitmap) nativeImage;
    b.getARGB(arr, offset, width, x, y, width, height);
}
 

import net.rim.device.api.system.Bitmap; //导入方法依赖的package包/类
/**
 * Copies a portion of a bitmap into a second bitmap.
 *
 * @param dst        the destination bitmap
 * @param dstXOffset the destination x offset
 * @param dstYOffset the destination y offset
 * @param width      the width to copy
 * @param height     the height to copy
 * @param src        the source bitmap
 * @param srcXOffset the source x offset
 * @param srcYOffset the source y offset
 */
private void copyBitmapSectionToBitmap(Bitmap dst, int dstXOffset, int dstYOffset, int width,
                                       int height, Bitmap src, int srcXOffset, int srcYOffset) {
  int[] raw = new int[width * height];
  src.getARGB(raw, 0, width, srcXOffset, srcYOffset, width, height);
  dst.setARGB(raw, 0, width, dstXOffset, dstYOffset, width, height);
}
 

import net.rim.device.api.system.Bitmap; //导入方法依赖的package包/类
/**
 * Utility to convert a RIM API Bitmap into a J2ME LCDUI Image. This assists
 * in using this library within a MIDP application, where the
 * drawTexturedPath method is not available.
 * 
 * @param bitmap
 *            the source Bitmap
 * @return the Image object based on the Bitmap data
 * @since 1.2
 */
public static Image convert(Bitmap bitmap) {
	int[] data = new int[bitmap.getWidth() * bitmap.getHeight()];
	bitmap.getARGB(data, 0, bitmap.getWidth(), 0, 0, bitmap.getWidth(), bitmap.getHeight());
	return Image.createRGBImage(data, bitmap.getWidth(), bitmap.getHeight(), true);
}