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Java™ Binding for the OpenGL® API
/**
* Copyright (c) 2014 JogAmp Community. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without modification, are
* permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice, this list of
* conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright notice, this list
* of conditions and the following disclaimer in the documentation and/or other materials
* provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY JogAmp Community ``AS IS'' AND ANY EXPRESS OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
* FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL JogAmp Community OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
* ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
* ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
* The views and conclusions contained in the software and documentation are those of the
* authors and should not be interpreted as representing official policies, either expressed
* or implied, of JogAmp Community.
*/
package javax.media.nativewindow.util;
import java.nio.ByteBuffer;
import java.nio.ByteOrder;
import com.jogamp.common.nio.Buffers;
/**
* Pixel Rectangle Utilities.
*
* All conversion methods are endian independent.
*
*/
public class PixelFormatUtil {
public static interface PixelSink {
/** Return the sink's destination pixelformat. */
PixelFormat getPixelformat();
/**
* Returns stride in byte-size, i.e. byte count from one line to the next.
*
* Must be >= {@link #getPixelformat()}.{@link PixelFormat#bytesPerPixel() bytesPerPixel()} * {@link #getSize()}.{@link DimensionImmutable#getWidth() getWidth()}.
*
*/
int getStride();
/**
* Returns true if the sink's memory is laid out in
* OpenGL's coordinate system, origin at bottom left.
* Otherwise returns false, i.e. origin at top left.
*/
boolean isGLOriented();
}
/**
* Pixel sink for up-to 32bit.
*/
public static interface PixelSink32 extends PixelSink {
/**
* Will be invoked over all rows top-to down
* and all columns left-to-right.
*
* Shall consider dest pixelformat and only store as much components
* as defined, up to 32bit.
*
*
* Implementation may better write single bytes from low-to-high bits,
* e.g. {@link ByteOrder#LITTLE_ENDIAN} order.
* Otherwise a possible endian conversion must be taken into consideration.
*
* @param x
* @param y
* @param pixel
*/
void store(int x, int y, int pixel);
}
/**
* Returns the {@link PixelFormat} with reversed components of fmt.
* If no reversed {@link PixelFormat} is available, returns fmt.
*/
public static PixelFormat getReversed(PixelFormat fmt) {
switch(fmt) {
case LUMINANCE:
return PixelFormat.LUMINANCE;
case RGB888:
return PixelFormat.BGR888;
case BGR888:
return PixelFormat.RGB888;
case RGBA8888:
return PixelFormat.ABGR8888;
case ABGR8888:
return PixelFormat.RGBA8888;
case ARGB8888:
return PixelFormat.BGRA8888;
case BGRA8888:
return PixelFormat.ABGR8888;
default:
throw new InternalError("Unhandled format "+fmt);
}
}
public static int getValue32(PixelFormat src_fmt, ByteBuffer src, int srcOff) {
switch(src_fmt) {
case LUMINANCE: {
final byte c1 = src.get(srcOff++);
return ( 0xff ) << 24 | ( 0xff & c1 ) << 16 | ( 0xff & c1 ) << 8 | ( 0xff & c1 );
}
case RGB888:
case BGR888: {
final byte c1 = src.get(srcOff++);
final byte c2 = src.get(srcOff++);
final byte c3 = src.get(srcOff++);
return ( 0xff ) << 24 | ( 0xff & c3 ) << 16 | ( 0xff & c2 ) << 8 | ( 0xff & c1 );
}
case RGBA8888:
case ABGR8888:
case ARGB8888:
case BGRA8888: {
final byte c1 = src.get(srcOff++);
final byte c2 = src.get(srcOff++);
final byte c3 = src.get(srcOff++);
final byte c4 = src.get(srcOff++);
return ( 0xff & c4 ) << 24 | ( 0xff & c3 ) << 16 | ( 0xff & c2 ) << 8 | ( 0xff & c1 );
}
default:
throw new InternalError("Unhandled format "+src_fmt);
}
}
public static int convertToInt32(PixelFormat dest_fmt, final byte r, final byte g, final byte b, final byte a) {
switch(dest_fmt) {
case LUMINANCE: {
final byte l = ( byte) ( ( ( ( 0xff & r ) + ( 0xff & g ) + ( 0xff & b ) ) / 3 ) );
return ( 0xff ) << 24 | ( 0xff & l ) << 16 | ( 0xff & l ) << 8 | ( 0xff & l );
}
case RGB888:
return ( 0xff ) << 24 | ( 0xff & b ) << 16 | ( 0xff & g ) << 8 | ( 0xff & r );
case BGR888:
return ( 0xff ) << 24 | ( 0xff & r ) << 16 | ( 0xff & g ) << 8 | ( 0xff & b );
case RGBA8888:
return ( 0xff & a ) << 24 | ( 0xff & b ) << 16 | ( 0xff & g ) << 8 | ( 0xff & r );
case ABGR8888:
return ( 0xff & r ) << 24 | ( 0xff & g ) << 16 | ( 0xff & b ) << 8 | ( 0xff & a );
case ARGB8888:
return ( 0xff & b ) << 24 | ( 0xff & g ) << 16 | ( 0xff & r ) << 8 | ( 0xff & a );
case BGRA8888:
return ( 0xff & a ) << 24 | ( 0xff & r ) << 16 | ( 0xff & g ) << 8 | ( 0xff & b );
default:
throw new InternalError("Unhandled format "+dest_fmt);
}
}
public static int convertToInt32(PixelFormat dest_fmt, PixelFormat src_fmt, ByteBuffer src, int srcOff) {
final byte r, g, b, a;
switch(src_fmt) {
case LUMINANCE:
r = src.get(srcOff++); // R
g = r; // G
b = r; // B
a = (byte) 0xff; // A
break;
case RGB888:
r = src.get(srcOff++); // R
g = src.get(srcOff++); // G
b = src.get(srcOff++); // B
a = (byte) 0xff; // A
break;
case BGR888:
b = src.get(srcOff++); // B
g = src.get(srcOff++); // G
r = src.get(srcOff++); // R
a = (byte) 0xff; // A
break;
case RGBA8888:
r = src.get(srcOff++); // R
g = src.get(srcOff++); // G
b = src.get(srcOff++); // B
a = src.get(srcOff++); // A
break;
case ABGR8888:
a = src.get(srcOff++); // A
b = src.get(srcOff++); // B
g = src.get(srcOff++); // G
r = src.get(srcOff++); // R
break;
case ARGB8888:
a = src.get(srcOff++); // A
r = src.get(srcOff++); // R
g = src.get(srcOff++); // G
b = src.get(srcOff++); // B
break;
case BGRA8888:
b = src.get(srcOff++); // B
g = src.get(srcOff++); // G
r = src.get(srcOff++); // R
a = src.get(srcOff++); // A
break;
default:
throw new InternalError("Unhandled format "+src_fmt);
}
return convertToInt32(dest_fmt, r, g, b, a);
}
public static int convertToInt32(PixelFormat dest_fmt, PixelFormat src_fmt, final int src_pixel) {
final byte r, g, b, a;
switch(src_fmt) {
case LUMINANCE:
r = (byte) ( src_pixel ); // R
g = r; // G
b = r; // B
a = (byte) 0xff; // A
break;
case RGB888:
r = (byte) ( src_pixel ); // R
g = (byte) ( src_pixel >>> 8 ); // G
b = (byte) ( src_pixel >>> 16 ); // B
a = (byte) 0xff; // A
break;
case BGR888:
b = (byte) ( src_pixel ); // B
g = (byte) ( src_pixel >>> 8 ); // G
r = (byte) ( src_pixel >>> 16 ); // R
a = (byte) 0xff; // A
break;
case RGBA8888:
r = (byte) ( src_pixel ); // R
g = (byte) ( src_pixel >>> 8 ); // G
b = (byte) ( src_pixel >>> 16 ); // B
a = (byte) ( src_pixel >>> 24 ); // A
break;
case ABGR8888:
a = (byte) ( src_pixel ); // A
b = (byte) ( src_pixel >>> 8 ); // B
g = (byte) ( src_pixel >>> 16 ); // G
r = (byte) ( src_pixel >>> 24 ); // R
break;
case ARGB8888:
a = (byte) ( src_pixel ); // A
r = (byte) ( src_pixel >>> 8 ); // R
g = (byte) ( src_pixel >>> 16 ); // G
b = (byte) ( src_pixel >>> 24 ); // B
break;
case BGRA8888:
b = (byte) ( src_pixel ); // B
g = (byte) ( src_pixel >>> 8 ); // G
r = (byte) ( src_pixel >>> 16 ); // R
a = (byte) ( src_pixel >>> 24 ); // A
break;
default:
throw new InternalError("Unhandled format "+src_fmt);
}
return convertToInt32(dest_fmt, r, g, b, a);
}
public static PixelRectangle convert32(final PixelRectangle src,
final PixelFormat destFmt, int ddestStride, final boolean isGLOriented,
final boolean destIsDirect) {
final int width = src.getSize().getWidth();
final int height = src.getSize().getHeight();
final int bpp = destFmt.bytesPerPixel();
final int destStride;
if( 0 != ddestStride ) {
destStride = ddestStride;
if( destStride < bpp * width ) {
throw new IllegalArgumentException("Invalid stride "+destStride+", must be greater than bytesPerPixel "+bpp+" * width "+width);
}
} else {
destStride = bpp * width;
}
final int capacity = destStride*height;
final ByteBuffer bb = destIsDirect ? Buffers.newDirectByteBuffer(capacity) : ByteBuffer.allocate(capacity).order(src.getPixels().order());
// System.err.println("XXX: SOURCE "+src);
// System.err.println("XXX: DEST fmt "+destFmt+", stride "+destStride+" ("+ddestStride+"), isGL "+isGLOriented+", "+width+"x"+height+", capacity "+capacity+", "+bb);
final PixelFormatUtil.PixelSink32 imgSink = new PixelFormatUtil.PixelSink32() {
public void store(int x, int y, int pixel) {
int o = destStride*y+x*bpp;
bb.put(o++, (byte) ( pixel )); // 1
if( 3 <= bpp ) {
bb.put(o++, (byte) ( pixel >>> 8 )); // 2
bb.put(o++, (byte) ( pixel >>> 16 )); // 3
if( 4 <= bpp ) {
bb.put(o++, (byte) ( pixel >>> 24 )); // 4
}
}
}
@Override
public final PixelFormat getPixelformat() {
return destFmt;
}
@Override
public final int getStride() {
return destStride;
}
@Override
public final boolean isGLOriented() {
return isGLOriented;
}
};
convert32(imgSink, src);
return new PixelRectangle.GenericPixelRect(destFmt, src.getSize(), destStride, isGLOriented, bb);
}
public static void convert32(PixelSink32 destInt32, final PixelRectangle src) {
convert32(destInt32,
src.getPixels(), src.getPixelformat(),
src.isGLOriented(),
src.getSize().getWidth(), src.getSize().getHeight(),
src.getStride());
}
/**
*
* @param dest32 32bit pixel sink
* @param src_bb
* @param src_fmt
* @param src_glOriented if true, the source memory is laid out in OpenGL's coordinate system, origin at bottom left,
* otherwise origin at top left.
* @param width
* @param height
* @param strideInBytes stride in byte-size, i.e. byte count from one line to the next.
* If zero, stride is set to width * bytes-per-pixel.
* If not zero, value must be >= width * bytes-per-pixel.
* @param stride_bytes stride in byte-size, i.e. byte count from one line to the next.
* Must be >= {@link PixelFormat#bytesPerPixel() src_fmt.bytesPerPixel()} * width.
* @throws IllegalArgumentException if strideInBytes is invalid
*/
public static void convert32(PixelSink32 dest32,
final ByteBuffer src_bb, final PixelFormat src_fmt, final boolean src_glOriented, final int width, final int height, int stride_bytes) {
final int src_bpp = src_fmt.bytesPerPixel();
if( 0 != stride_bytes ) {
if( stride_bytes < src_bpp * width ) {
throw new IllegalArgumentException("Invalid stride "+stride_bytes+", must be greater than bytesPerPixel "+src_bpp+" * width "+width);
}
} else {
stride_bytes = src_bpp * width;
}
final PixelFormat dest_fmt = dest32.getPixelformat();
final boolean vert_flip = src_glOriented != dest32.isGLOriented();
final boolean fast_copy = src_fmt == dest_fmt && dest_fmt.bytesPerPixel() == 4 ;
// System.err.println("XXX: SRC fmt "+src_fmt+", stride "+stride_bytes+", isGL "+src_glOriented+", "+width+"x"+height);
// System.err.println("XXX: DST fmt "+dest_fmt+", fast_copy "+fast_copy);
if( fast_copy ) {
// Fast copy
for(int y=0; y© 2015 - 2025 Weber Informatics LLC | Privacy Policy