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Make skin preview more accurate

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This commit is contained in:
andylizi
2018-09-24 13:47:59 +08:00
parent 6d346a3ad6
commit 92cfc3c1d3
1 changed files with 9 additions and 41 deletions
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50
HMCL/src/main/java/org/jackhuang/hmcl/game/AccountHelper.java
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@@ -32,6 +32,7 @@ import org.jackhuang.hmcl.task.Task;
import org.jackhuang.hmcl.ui.DialogController;
import org.jackhuang.hmcl.util.io.NetworkUtils;
import java.awt.Graphics2D;
import java.awt.image.BufferedImage;
import java.io.File;
import java.util.*;
@@ -93,53 +94,20 @@ public final class AccountHelper {
}
public static Image getHead(Image skin, int scaleRatio) {
int size = 8 * scaleRatio;
final int size = 8 * scaleRatio;
final int faceOffset = (int) Math.ceil(0.25 * scaleRatio);
BufferedImage image = SwingFXUtils.fromFXImage(skin, null);
BufferedImage head = image.getSubimage(size, size, size, size);
BufferedImage head = new BufferedImage(size, size, BufferedImage.TYPE_INT_ARGB);
Graphics2D g2d = head.createGraphics();
g2d.drawImage(image, faceOffset, faceOffset, size - faceOffset, size - faceOffset,
size, size, size + size, size + size, null);
if (image.getHeight() > 32) {
int[] face = head.getRGB(0, 0, size, size, null, 0, size);
int[] helmet = image.getRGB(40 * scaleRatio, 8 * scaleRatio, size, size, null, 0, size);
int[] result = blendColor(face, helmet);
head.setRGB(0, 0, size, size, result, 0, size);
g2d.drawImage(image, 0, 0, size, size,
40 * scaleRatio, 8 * scaleRatio, 48 * scaleRatio, 16 * scaleRatio, null);
}
return SwingFXUtils.toFXImage(head, null);
}
private static int[] blendColor(int[] bottom, int[] top) {
if (bottom.length != top.length) throw new IllegalArgumentException();
int[] result = new int[bottom.length];
for (int i = 0; i < bottom.length; i++) {
int b = bottom[i];
int t = top[i];
result[i] = blendColor(b, t);
}
return result;
}
private static int blendColor(int bottom, int top) {
int tAlpha = (top >> 24) & 0xFF;
if (tAlpha == 0) return bottom | 0xFF000000; // set alpha to 255
if (tAlpha == 255) return top;
int tRed = (top >> 16) & 0xFF,
tGreen = (top >> 8) & 0xFF,
tBlue = (top) & 0xFF;
int bRed = (bottom >> 16) & 0xFF,
bGreen = (bottom >> 8) & 0xFF,
bBlue = (bottom) & 0xFF;
int cRed = blendColorChannel(bRed, tRed, tAlpha),
cGreen = blendColorChannel(bGreen, tGreen, tAlpha),
cBlue = blendColorChannel(bBlue, tBlue, tAlpha);
return 0xFF000000 | // set alpha to 255
((cRed & 0xFF) << 16) |
((cGreen & 0xFF) << 8) |
((cBlue & 0xFF));
}
private static int blendColorChannel(int bottom, int top, int alpha) {
return (top * alpha + bottom * (255 - alpha)) / 255;
}
private static class SkinLoadTask extends Task {
private final YggdrasilAccount account;
private final boolean refresh;