/**
* Draw an image squeezed along the horizontal and/or vertical dimensions (no preservation of
* aspect ratio) centered at (x, y).
*
* @param g - object to draw onto
* @param x - horizontal center of where to draw the resulting image
* @param y - vertical center of where to draw the resulting image
* @param inputImageARGB
* @param outputImageARGB - often this is the same as inputImageARGB for speed
* @param srcW - source image width
* @param srcH - source image height
* @param maxW - target width
* @param maxH - target height
* @param processAlpha - set false for speed if the image is opaque
*/
public static void drawFlipshade(
final Graphics g,
final int x,
final int y,
final int[] inputImageARGB,
final int[] outputImageARGB,
int srcW,
int srcH,
int maxW,
int maxH,
final boolean processAlpha) {
if (maxW < 1 || maxH < 1 || srcW < 1 || srcH < 1) {
throw new IllegalArgumentException(
"drawFlipshade requires maxW, maxH, srcW and srcH be >= 1");
}
if (inputImageARGB == null || outputImageARGB == null) {
throw new NullPointerException(
"drawFlipshade requires non-null input and output image buffers");
}
while (srcW >> 1 > maxW && srcH >> 1 > maxH) {
JMEImageUtils.half(inputImageARGB, inputImageARGB, srcW, srcH >>= 1);
srcW >>= 1;
}
if (srcW >> 1 == maxW && srcH >> 1 == maxH) {
JMEImageUtils.half(inputImageARGB, outputImageARGB, maxW, maxH);
} else {
maxW = Math.min(srcW, maxW);
maxH = Math.min(srcH, maxH);
JMEImageUtils.fivePointSampleDownscale(
inputImageARGB, outputImageARGB, srcW, srcH, maxW, maxH);
}
g.drawRGB(outputImageARGB, 0, maxW, x - (maxW >> 1), y - (maxH >> 1), maxW, maxH, processAlpha);
}
/* (non-Javadoc)
* @see javax.microedition.lcdui.Canvas#paint(javax.microedition.lcdui.Graphics)
*/
public void paintAnimation(Graphics g) {
g.drawRGB(
this.currentScreenRgb,
0,
this.screenWidth,
0,
0,
this.screenWidth,
this.screenHeight,
false);
}
/*
* 图片叠加，将src和image合成一张图片，x_pos，y_pos一般为0,0,也可以为自定义值
*/
public Image effect_image_add_image(Image src, Image image, int x_pos, int y_pos) {
Image temp = Image.createImage(src.getWidth(), src.getHeight());
Graphics g = temp.getGraphics();
// g.drawImage(src,x_pos,y_pos,Graphics.LEFT|Graphics.TOP);
// g.drawImage(image,x_pos,y_pos,Graphics.LEFT|Graphics.TOP);*/
int alpha = 168;
int[] srcRgbdata = new int[src.getWidth() * src.getHeight()];
int[] desRgbdata = new int[image.getWidth() * image.getHeight()];
src.getRGB(srcRgbdata, 0, src.getWidth(), 0, 0, src.getWidth(), src.getHeight());
image.getRGB(desRgbdata, 0, image.getWidth(), 0, 0, image.getWidth(), image.getHeight());
g.drawRGB(
getTransImg(alpha, srcRgbdata, desRgbdata),
0,
src.getWidth(),
0,
0,
src.getWidth(),
src.getHeight(),
false);
src = null;
image = null;
return temp;
}
