124 lines
2.9 KiB
Java
124 lines
2.9 KiB
Java
package org.oscim.awt;
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import java.awt.image.BufferedImage;
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import java.io.File;
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import java.io.IOException;
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import java.io.InputStream;
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import java.nio.IntBuffer;
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import javax.imageio.ImageIO;
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import org.oscim.backend.canvas.Bitmap;
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import com.badlogic.gdx.Gdx;
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import com.badlogic.gdx.graphics.GL20;
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import com.badlogic.gdx.utils.BufferUtils;
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public class AwtBitmap implements Bitmap {
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BufferedImage bitmap;
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int width;
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int height;
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boolean internal;
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public AwtBitmap(int width, int height, int format) {
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bitmap = new BufferedImage(width, height, BufferedImage.TYPE_INT_ARGB);
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this.width = width;
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this.height = height;
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internal = true;
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// if (!this.bitmap.isAlphaPremultiplied())
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// this.bitmap.coerceData(true);
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}
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AwtBitmap(InputStream inputStream) throws IOException {
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this.bitmap = ImageIO.read(inputStream);
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this.width = this.bitmap.getWidth();
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this.height = this.bitmap.getHeight();
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if (!this.bitmap.isAlphaPremultiplied()
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&& this.bitmap.getType() == BufferedImage.TYPE_INT_ARGB)
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this.bitmap.coerceData(true);
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}
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@Override
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public int getWidth() {
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return width;
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}
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@Override
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public int getHeight() {
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return height;
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}
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@Override
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public int[] getPixels() {
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return null;
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}
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@Override
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public void eraseColor(int transparent) {
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}
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private static IntBuffer tmpBuffer = BufferUtils.newIntBuffer(512 * 256);
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private static int[] tmpPixel = new int[512 * 256];
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private final static boolean WRITE_TEX = false;
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private int dbgCnt;
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@Override
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public int uploadToTexture(boolean replace) {
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int[] pixels;
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IntBuffer buffer;
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if (width * height < 512 * 256) {
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pixels = tmpPixel;
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buffer = tmpBuffer;
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buffer.clear();
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} else {
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pixels = new int[width * height];
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buffer = BufferUtils.newIntBuffer(width * height);
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}
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// FIXME dont convert to argb when there data is greyscale
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bitmap.getRGB(0, 0, width, height, pixels, 0, width);
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if (WRITE_TEX) {
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try {
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boolean ok = ImageIO.write(bitmap, "png", new File("texture_" + dbgCnt + ".png"));
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System.out.println("write tex " + ok + " " + dbgCnt);
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dbgCnt++;
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} catch (IOException e) {
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// TODO Auto-generated catch block
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e.printStackTrace();
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}
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}
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for (int i = 0, n = width * height; i < n; i++) {
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int c = pixels[i];
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//if (internal) {
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float alpha = (c >>> 24) / 255f;
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int r = (int) ((c & 0x000000ff) * alpha);
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int b = (int) (((c & 0x00ff0000) >>> 16) * alpha);
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int g = (int) (((c & 0x0000ff00) >>> 8) * alpha);
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pixels[i] = (c & 0xff000000) | r << 16 | g << 8 | b;
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//} else {
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// flip blue with red - silly Java
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// pixels[i] = (c & 0xff00ff00) | (c & 0x00ff0000) >>> 16 | (c & 0x000000ff) << 16;
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//}
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}
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buffer.put(pixels, 0, width * height);
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buffer.flip();
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Gdx.gl20.glTexImage2D(GL20.GL_TEXTURE_2D, 0, GL20.GL_RGBA, width,
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height, 0, GL20.GL_RGBA, GL20.GL_UNSIGNED_BYTE, buffer);
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return 0;
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}
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@Override
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public void recycle() {
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}
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}
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