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Speedup for black/white image rendering

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git-svn-id: https://zxing.googlecode.com/svn/trunk@2365 59b500cc-1b3d-0410-9834-0bbf25fbcc57
This commit is contained in:
srowen 2012-08-01 23:48:37 +00:00
parent 6ce63cc1a2
commit ba5dd02852
2 changed files with 8 additions and 1 deletions
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7
javase/src/com/google/zxing/client/j2se/MatrixToImageConfig.java
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@ -16,6 +16,8 @@
package com.google.zxing.client.j2se; package com.google.zxing.client.j2se;
import java.awt.image.BufferedImage;
/** /**
* Encapsulates custom configuration used in methods of {@link MatrixToImageWriter}. * Encapsulates custom configuration used in methods of {@link MatrixToImageWriter}.
*/ */
@ -52,4 +54,9 @@ public final class MatrixToImageConfig {
return offColor; return offColor;
} }
int getBufferedImageColorModel() {
// Use faster BINARY if colors match default
return onColor == BLACK && offColor == WHITE ? BufferedImage.TYPE_BYTE_BINARY : BufferedImage.TYPE_INT_RGB;
}
} }

2
javase/src/com/google/zxing/client/j2se/MatrixToImageWriter.java
View file

@ -51,7 +51,7 @@ public final class MatrixToImageWriter {
public static BufferedImage toBufferedImage(BitMatrix matrix, MatrixToImageConfig config) { public static BufferedImage toBufferedImage(BitMatrix matrix, MatrixToImageConfig config) {
int width = matrix.getWidth(); int width = matrix.getWidth();
int height = matrix.getHeight(); int height = matrix.getHeight();
BufferedImage image = new BufferedImage(width, height, BufferedImage.TYPE_INT_RGB); BufferedImage image = new BufferedImage(width, height, config.getBufferedImageColorModel());
int onColor = config.getPixelOnColor(); int onColor = config.getPixelOnColor();
int offColor = config.getPixelOffColor(); int offColor = config.getPixelOffColor();
for (int x = 0; x < width; x++) { for (int x = 0; x < width; x++) {