本文整理汇总了Java中ar.com.hjg.pngj.chunks.PngChunkTRNS.setIndexEntryAsTransparent方法的典型用法代码示例。如果您正苦于以下问题：Java PngChunkTRNS.setIndexEntryAsTransparent方法的具体用法？Java PngChunkTRNS.setIndexEntryAsTransparent怎么用？Java PngChunkTRNS.setIndexEntryAsTransparent使用的例子？那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类ar.com.hjg.pngj.chunks.PngChunkTRNS的用法示例。
在下文中一共展示了PngChunkTRNS.setIndexEntryAsTransparent方法的2个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的Java代码示例。
示例1: encodeIndexedPNG
import ar.com.hjg.pngj.chunks.PngChunkTRNS; //导入方法依赖的package包/类
public byte [] encodeIndexedPNG (int [] pixels, int width, int height, boolean color, int bits) {
ByteArrayOutputStream bos = new ByteArrayOutputStream();
int [] palette = getPalette();
boolean alpha = Color.alpha(palette[0]) == 0;
boolean grayscale = !color;
//Log.d(TAG, "encodeIndexedPNG: color = "+color +", alpha ="+alpha+", grayscale = "+grayscale);
//ImageInfo imageInfo = new ImageInfo(width, height, bits, alpha, grayscale, color);
ImageInfo imageInfo = new ImageInfo(width, height, bits, false, grayscale, color);
PngWriter writer = new PngWriter(bos, imageInfo);
writer.getPixelsWriter().setDeflaterCompLevel(9);
if (color) {
PngChunkPLTE paletteChunk = writer.getMetadata().createPLTEChunk();
paletteChunk.setNentries(palette.length);
for (int i = 0; i < palette.length; i++) {
int c = palette[i];
paletteChunk.setEntry(i, Color.red(c), Color.green(c), Color.blue(c));
}
}
if (alpha) {
PngChunkTRNS trnsChunk = writer.getMetadata().createTRNSChunk();
if (color) {
trnsChunk.setIndexEntryAsTransparent(0);
} else {
trnsChunk.setGray(1);
}
}
else {
quantize(pixels, imageInfo.cols);
}
ImageLineInt line = new ImageLineInt(imageInfo);
for (int y = 0; y < imageInfo.rows; y++) {
int [] lineData = line.getScanline();
for (int x = 0; x < imageInfo.cols; x++) {
int pixel = pixels[y * imageInfo.cols + x];
//lineData[x] = getNearestColorIndex(pixel) ^ (x % 2) ^ (y % 2);
lineData[x] = getNearestColorIndex(pixel);
}
writer.writeRow(line);
}
writer.end();
return bos.toByteArray();
}
示例2: encodeIndexedPNG
import ar.com.hjg.pngj.chunks.PngChunkTRNS; //导入方法依赖的package包/类
public byte [] encodeIndexedPNG (int [] pixels, int width, int height, boolean color, int bits) {
ByteArrayOutputStream bos = new ByteArrayOutputStream();
int [] palette = getPalette();
boolean alpha = Color.alpha(palette[0]) == 0;
boolean grayscale = !color;
//Log.d(TAG, "encodeIndexedPNG: color = "+color +", alpha ="+alpha+", grayscale = "+grayscale);
//ImageInfo imageInfo = new ImageInfo(width, height, bits, alpha, grayscale, color);
ImageInfo imageInfo = new ImageInfo(width, height, bits, false, grayscale, color);
PngWriter writer = new PngWriter(bos, imageInfo);
writer.getPixelsWriter().setDeflaterCompLevel(9);
if (color) {
PngChunkPLTE paletteChunk = writer.getMetadata().createPLTEChunk();
paletteChunk.setNentries(palette.length);
for (int i = 0; i < palette.length; i++) {
int c = palette[i];
paletteChunk.setEntry(i, Color.red(c), Color.green(c), Color.blue(c));
}
}
if (alpha) {
PngChunkTRNS trnsChunk = writer.getMetadata().createTRNSChunk();
if (color) {
trnsChunk.setIndexEntryAsTransparent(0);
} else {
trnsChunk.setGray(1);
}
}
else {
quantize(pixels, imageInfo.cols);
}
ImageLineInt line = new ImageLineInt(imageInfo);
for (int y = 0; y < imageInfo.rows; y++) {
int [] lineData = line.getScanline();
for (int x = 0; x < imageInfo.cols; x++) {
int pixel = pixels[y * imageInfo.cols + x];
lineData[x] = getNearestColorIndex(pixel);
}
writer.writeRow(line);
}
writer.end();
return bos.toByteArray();
}