1 files changed, 61 insertions, 0 deletions
diff --git a/gl4java/utils/textures/TGATextureGrabber.java b/gl4java/utils/textures/TGATextureGrabber.java
new file mode 100644
index 0000000..2d1c432
--- /dev/null
+++ b/gl4java/utils/textures/TGATextureGrabber.java
@@ -0,0 +1,61 @@
+package gl4java.utils.textures;
+
+import gl4java.*;
+
+import java.io.*;
+import java.net.*;
+
+public class TGATextureGrabber
+extends TextureGrabber
+{
+  public TGATextureGrabber(GLFunc gl)
+  {
+    super(gl);
+  }
+
+  public boolean write2File(OutputStream os)
+  {
+    try {
+	    DataOutputStream fout= new DataOutputStream(os);
+	    
+	    //write TGA header
+	    fout.writeByte(0); //ID length, 0 because no image id field
+	    fout.writeByte(0); //no color map
+	    fout.writeByte(2); //image type (24 bit RGB, uncompressed)
+	    fout.writeShort(0); //color map origin, ignore because no color map
+	    fout.writeShort(0); //color map length, ignore because no color map
+	    fout.writeByte(0); //color map entry size, ignore because no color map
+	    fout.writeShort(0); //x origin
+	    fout.writeShort(0); //y origin
+	    short s = (short)width;
+	    fout.writeByte((byte)(s & 0x00ff));      //image width low byte
+	    fout.writeByte((byte)((s & 0xff00)>>8)); //image width high byte
+	    s = (short)height;
+	    fout.writeByte((byte)(s & 0x00ff));      //image height low byte
+	    fout.writeByte((byte)((s & 0xff00)>>8)); //image height high byte
+	    fout.writeByte(24); //bpp
+	    fout.writeByte(0); //description bits
+	    
+	    //process image data: 
+	    // TGA pixels should be written in BGR format, 
+	    // so R en B should be switched
+	    byte tmp;
+	    for (int i=0; i<(width*height*3); i+=3) {
+	      tmp=pixels[i];
+	      pixels[i]=pixels[i+2];
+	      pixels[i+2]=tmp;
+	    }
+	    
+	    //write TGA image data
+	    fout.write(pixels, 0, pixels.length);
+	    
+	    fout.flush();
+	    fout.close();
+    } catch (Exception ex) {
+    	System.out.println("TGATextureGrabber.write2File <os> failed !\n"+ex);
+	return false;
+    }
+    return true;
+  }
+}
+