diff options
Diffstat (limited to 'src/classes/com/sun/opengl/impl/glu/mipmap/BuildMipmap.java')
| -rw-r--r-- | src/classes/com/sun/opengl/impl/glu/mipmap/BuildMipmap.java | 1595 |
1 files changed, 1595 insertions, 0 deletions
diff --git a/src/classes/com/sun/opengl/impl/glu/mipmap/BuildMipmap.java b/src/classes/com/sun/opengl/impl/glu/mipmap/BuildMipmap.java new file mode 100644 index 000000000..878eeabe7 --- /dev/null +++ b/src/classes/com/sun/opengl/impl/glu/mipmap/BuildMipmap.java @@ -0,0 +1,1595 @@ +/* + * License Applicability. Except to the extent portions of this file are + * made subject to an alternative license as permitted in the SGI Free + * Software License B, Version 1.1 (the "License"), the contents of this + * file are subject only to the provisions of the License. You may not use + * this file except in compliance with the License. You may obtain a copy + * of the License at Silicon Graphics, Inc., attn: Legal Services, 1600 + * Amphitheatre Parkway, Mountain View, CA 94043-1351, or at: + * + * http://oss.sgi.com/projects/FreeB + * + * Note that, as provided in the License, the Software is distributed on an + * "AS IS" basis, with ALL EXPRESS AND IMPLIED WARRANTIES AND CONDITIONS + * DISCLAIMED, INCLUDING, WITHOUT LIMITATION, ANY IMPLIED WARRANTIES AND + * CONDITIONS OF MERCHANTABILITY, SATISFACTORY QUALITY, FITNESS FOR A + * PARTICULAR PURPOSE, AND NON-INFRINGEMENT. + * + * NOTE: The Original Code (as defined below) has been licensed to Sun + * Microsystems, Inc. ("Sun") under the SGI Free Software License B + * (Version 1.1), shown above ("SGI License"). Pursuant to Section + * 3.2(3) of the SGI License, Sun is distributing the Covered Code to + * you under an alternative license ("Alternative License"). This + * Alternative License includes all of the provisions of the SGI License + * except that Section 2.2 and 11 are omitted. Any differences between + * the Alternative License and the SGI License are offered solely by Sun + * and not by SGI. + * + * Original Code. The Original Code is: OpenGL Sample Implementation, + * Version 1.2.1, released January 26, 2000, developed by Silicon Graphics, + * Inc. The Original Code is Copyright (c) 1991-2000 Silicon Graphics, Inc. + * Copyright in any portions created by third parties is as indicated + * elsewhere herein. All Rights Reserved. + * + * Additional Notice Provisions: The application programming interfaces + * established by SGI in conjunction with the Original Code are The + * OpenGL(R) Graphics System: A Specification (Version 1.2.1), released + * April 1, 1999; The OpenGL(R) Graphics System Utility Library (Version + * 1.3), released November 4, 1998; and OpenGL(R) Graphics with the X + * Window System(R) (Version 1.3), released October 19, 1998. This software + * was created using the OpenGL(R) version 1.2.1 Sample Implementation + * published by SGI, but has not been independently verified as being + * compliant with the OpenGL(R) version 1.2.1 Specification. + */ + +package com.sun.opengl.impl.glu.mipmap; + +import javax.media.opengl.GL; +import javax.media.opengl.GL2; +import javax.media.opengl.glu.GLU; +import com.sun.opengl.impl.Debug; +import java.nio.*; +import java.io.*; + +/** + * + * @author Administrator + */ +public class BuildMipmap { + + private static final boolean DEBUG = Debug.debug("BuildMipmap"); + private static final boolean VERBOSE = Debug.verbose(); + + /** Creates a new instance of BuildMipmap */ + public BuildMipmap() { + } + + public static int gluBuild1DMipmapLevelsCore( GL gl, int target, int internalFormat, + int width, int widthPowerOf2, int format, int type, int userLevel, + int baseLevel, int maxLevel, ByteBuffer data ) { + int newwidth; + int level, levels; + ShortBuffer newImage = null; + int newImage_width; + ShortBuffer otherImage = null; + ShortBuffer imageTemp = null; + int memreq; + int maxsize; + int cmpts; + PixelStorageModes psm = new PixelStorageModes(); + + assert( Mipmap.checkMipmapArgs( internalFormat, format, type ) == 0 ); + assert( width >= 1 ); + + newwidth = widthPowerOf2; + levels = Mipmap.computeLog( newwidth ); + + levels += userLevel; + + Mipmap.retrieveStoreModes( gl, psm ); + try { + newImage = ByteBuffer.allocateDirect( Mipmap.image_size( width, 1, format, + GL2.GL_UNSIGNED_SHORT ) ).order( ByteOrder.nativeOrder() ).asShortBuffer(); + } catch( OutOfMemoryError ome ) { + return( GLU.GLU_OUT_OF_MEMORY ); + } + newImage_width = width; + + Image.fill_image( psm, width, 1, format, type, Mipmap.is_index( format ), data, newImage ); + cmpts = Mipmap.elements_per_group( format, type ); + gl.glPixelStorei( GL2.GL_UNPACK_ALIGNMENT, 2 ); + gl.glPixelStorei( GL2.GL_UNPACK_SKIP_ROWS, 0 ); + gl.glPixelStorei( GL2.GL_UNPACK_SKIP_PIXELS, 0 ); + gl.glPixelStorei( GL2.GL_UNPACK_ROW_LENGTH, 0 ); + + // if swap_bytes was set, swapping occurred in fill_image + gl.glPixelStorei( GL2.GL_UNPACK_SWAP_BYTES, GL2.GL_FALSE ); + + for( level = userLevel; level <= levels; level++ ) { + if( newImage_width == newwidth ) { + // user newimage for this level + if( baseLevel <= level && level <= maxLevel ) { + gl.getGL2().glTexImage1D( target, level, internalFormat, newImage_width, 0, format, + GL2.GL_UNSIGNED_SHORT, newImage ); + } + } else { + if( otherImage == null ) { + memreq = Mipmap.image_size( newwidth, 1, format, GL2.GL_UNSIGNED_SHORT ); + try { + otherImage = ByteBuffer.allocateDirect( memreq ).order( ByteOrder.nativeOrder() ).asShortBuffer(); + } catch( OutOfMemoryError ome ) { + gl.glPixelStorei( GL2.GL_UNPACK_ALIGNMENT, psm.getUnpackAlignment() ); + gl.glPixelStorei( GL2.GL_UNPACK_SKIP_ROWS, psm.getUnpackSkipRows() ); + gl.glPixelStorei( GL2.GL_UNPACK_SKIP_PIXELS, psm.getUnpackSkipPixels() ); + gl.glPixelStorei( GL2.GL_UNPACK_ROW_LENGTH, psm.getUnpackRowLength() ); + gl.glPixelStorei( GL2.GL_UNPACK_SWAP_BYTES, (psm.getUnpackSwapBytes() ? 1 : 0) ); + return( GLU.GLU_OUT_OF_MEMORY ); + } + } + ScaleInternal.scale_internal( cmpts, newImage_width, 1, newImage, newwidth, 1, otherImage ); + // swap newImage and otherImage + imageTemp = otherImage; + otherImage = newImage; + newImage = imageTemp; + + newImage_width = newwidth; + if( baseLevel <= level && level <= maxLevel ) { + gl.getGL2().glTexImage1D( target, level, internalFormat, newImage_width, 0, + format, GL2.GL_UNSIGNED_SHORT, newImage ); + } + } + if( newwidth > 1 ) { + newwidth /= 2; + } + } + gl.glPixelStorei( GL2.GL_UNPACK_ALIGNMENT, psm.getUnpackAlignment() ); + gl.glPixelStorei( GL2.GL_UNPACK_SKIP_ROWS, psm.getUnpackSkipRows() ); + gl.glPixelStorei( GL2.GL_UNPACK_SKIP_PIXELS, psm.getUnpackSkipPixels() ); + gl.glPixelStorei( GL2.GL_UNPACK_ROW_LENGTH, psm.getUnpackRowLength() ); + gl.glPixelStorei( GL2.GL_UNPACK_SWAP_BYTES, (psm.getUnpackSwapBytes() ? 1 : 0) ); + + return( 0 ); + } + + public static int bitmapBuild2DMipmaps( GL gl, int target, int internalFormat, + int width, int height, int format, int type, ByteBuffer data ) { + int newwidth[] = new int[1]; + int newheight[] = new int[1]; + int level, levels; + ShortBuffer newImage = null; + int newImage_width; + int newImage_height; + ShortBuffer otherImage = null; + ShortBuffer tempImage = null; + int memreq; + int maxsize; + int cmpts; + PixelStorageModes psm = new PixelStorageModes(); + + Mipmap.retrieveStoreModes( gl, psm ); + + Mipmap.closestFit( gl, target, width, height, internalFormat, format, type, newwidth, newheight ); + + levels = Mipmap.computeLog( newwidth[0] ); + level = Mipmap.computeLog( newheight[0] ); + if( level > levels ) { + levels = level; + } + + try { + newImage = ByteBuffer.allocateDirect( Mipmap.image_size( width, height, + format, GL2.GL_UNSIGNED_SHORT ) ).order( ByteOrder.nativeOrder() ).asShortBuffer(); + } catch( OutOfMemoryError ome ) { + return( GLU.GLU_OUT_OF_MEMORY ); + } + newImage_width = width; + newImage_height = height; + + Image.fill_image( psm, width, height, format, type, Mipmap.is_index( format ), data, newImage ); + + cmpts = Mipmap.elements_per_group( format, type ); + gl.glPixelStorei( GL2.GL_UNPACK_ALIGNMENT, 2 ); + gl.glPixelStorei( GL2.GL_UNPACK_SKIP_ROWS, 0 ); + gl.glPixelStorei( GL2.GL_UNPACK_SKIP_PIXELS, 0 ); + gl.glPixelStorei( GL2.GL_UNPACK_ROW_LENGTH, 0 ); + + // if swap_bytes is set, swapping occurred in fill_image + gl.glPixelStorei( GL2.GL_UNPACK_SWAP_BYTES, GL2.GL_FALSE ); + + for( level = 0; level < levels; level++ ) { + if( newImage_width == newwidth[0] && newImage_height == newheight[0] ) { + newImage.rewind(); + gl.glTexImage2D( target, level, internalFormat, newImage_width, + newImage_height, 0, format, GL2.GL_UNSIGNED_SHORT, newImage ); + } else { + if( otherImage == null ) { + memreq = Mipmap.image_size( newwidth[0], newheight[0], format, GL2.GL_UNSIGNED_SHORT ); + try { + otherImage = ByteBuffer.allocateDirect( memreq ).order( ByteOrder.nativeOrder() ).asShortBuffer(); + } catch( OutOfMemoryError ome ) { + gl.glPixelStorei( GL2.GL_UNPACK_ALIGNMENT, psm.getUnpackAlignment() ); + gl.glPixelStorei( GL2.GL_UNPACK_SKIP_ROWS, psm.getUnpackSkipRows() ); + gl.glPixelStorei( GL2.GL_UNPACK_SKIP_PIXELS, psm.getUnpackSkipPixels() ); + gl.glPixelStorei( GL2.GL_UNPACK_ROW_LENGTH, psm.getUnpackRowLength() ); + gl.glPixelStorei( GL2.GL_UNPACK_SWAP_BYTES, (psm.getUnpackSwapBytes() ? 1 : 0) ); + return( GLU.GLU_OUT_OF_MEMORY ); + } + } + ScaleInternal.scale_internal( cmpts, newImage_width, newImage_height, + newImage, newwidth[0], newheight[0], otherImage ); + // swap newImage and otherImage + tempImage = otherImage; + otherImage = newImage; + newImage = tempImage; + + newImage_width = newwidth[0]; + newImage_height = newheight[0]; + newImage.rewind(); + gl.glTexImage2D( target, level, internalFormat, newImage_width, newImage_height, + 0, format, GL2.GL_UNSIGNED_SHORT, newImage ); + } + if( newheight[0] > 1 ) { + newwidth[0] /= 2; + } + if( newheight[0] > 1 ) { + newheight[0] /= 2; + } + } + gl.glPixelStorei( GL2.GL_UNPACK_ALIGNMENT, psm.getUnpackAlignment() ); + gl.glPixelStorei( GL2.GL_UNPACK_SKIP_ROWS, psm.getUnpackSkipRows() ); + gl.glPixelStorei( GL2.GL_UNPACK_SKIP_PIXELS, psm.getUnpackSkipPixels() ); + gl.glPixelStorei( GL2.GL_UNPACK_ROW_LENGTH, psm.getUnpackRowLength() ); + gl.glPixelStorei( GL2.GL_UNPACK_SWAP_BYTES, (psm.getUnpackSwapBytes() ? 1 : 0) ); + + return( 0 ); + } + + public static int gluBuild2DMipmapLevelsCore( GL gl, int target, int internalFormat, + int width, int height, int widthPowerOf2, int heightPowerOf2, + int format, int type, int userLevel, int baseLevel, int maxLevel, + ByteBuffer data ) { // PointerWrapper data + int newwidth; + int newheight; + int level, levels; + int usersImage; + ByteBuffer srcImage = null; + ByteBuffer dstImage = null; + ByteBuffer tempImage = null; + int newImage_width; + int newImage_height; + short[] SWAP_IMAGE = null; + int memreq; + int maxsize; + int cmpts; + + boolean myswap_bytes; + int groups_per_line, element_size, group_size; + int rowsize, padding; + PixelStorageModes psm = new PixelStorageModes(); + + assert( Mipmap.checkMipmapArgs( internalFormat, format, type ) == 0 ); + assert( width >= 1 && height >= 1 ); + + if( type == GL2.GL_BITMAP ) { + return( bitmapBuild2DMipmaps( gl, target, internalFormat, width, height, format, type, data ) ); + } + + newwidth = widthPowerOf2; + newheight = heightPowerOf2; + levels = Mipmap.computeLog( newwidth ); + level = Mipmap.computeLog( newheight ); + if( level > levels ) { + levels = level; + } + + levels += userLevel; + + Mipmap.retrieveStoreModes( gl, psm ); + myswap_bytes = psm.getUnpackSwapBytes(); + cmpts = Mipmap.elements_per_group( format, type ); + if( psm.getUnpackRowLength() > 0 ) { + groups_per_line = psm.getUnpackRowLength(); + } else { + groups_per_line = width; + } + + element_size = Mipmap.bytes_per_element( type ); + group_size = element_size * cmpts; + if( element_size == 1 ) { + myswap_bytes = false; + } + + rowsize = groups_per_line * group_size; + padding = ( rowsize % psm.getUnpackAlignment() ); + if( padding != 0 ) { + rowsize += psm.getUnpackAlignment() - padding; + } + + data.position( psm.getUnpackSkipRows() * rowsize + psm.getUnpackSkipPixels() * group_size ); + data.mark(); + + gl.glPixelStorei( GL2.GL_UNPACK_SKIP_ROWS, 0 ); + gl.glPixelStorei( GL2.GL_UNPACK_SKIP_PIXELS, 0 ); + gl.glPixelStorei( GL2.GL_UNPACK_ROW_LENGTH, 0 ); + + level = userLevel; + + // already power of two square + if( width == newwidth && height == newheight ) { + // use usersImage for level userLevel + if( baseLevel <= level && level <= maxLevel ) { + data.rewind(); + gl.glTexImage2D( target, level, internalFormat, width, height, 0, format, type, data ); + } + if( levels == 0 ) { /* we're done. clean up and return */ + gl.glPixelStorei( GL2.GL_UNPACK_ALIGNMENT, psm.getUnpackAlignment() ); + gl.glPixelStorei( GL2.GL_UNPACK_SKIP_ROWS, psm.getUnpackSkipRows() ); + gl.glPixelStorei( GL2.GL_UNPACK_SKIP_PIXELS, psm.getUnpackSkipPixels() ); + gl.glPixelStorei( GL2.GL_UNPACK_ROW_LENGTH, psm.getUnpackRowLength() ); + gl.glPixelStorei( GL2.GL_UNPACK_SWAP_BYTES, (psm.getUnpackSwapBytes() ? 1 : 0) ); + return( 0 ); + } + int nextWidth = newwidth / 2; + int nextHeight = newheight / 2; + + // clamp to 1 + if( nextWidth < 1 ) { + nextWidth = 1; + } + if( nextHeight < 1 ) { + nextHeight = 1; + } + memreq = Mipmap.image_size( nextWidth, nextHeight, format, type ); + + try { + switch( type ) { + case( GL2.GL_UNSIGNED_BYTE ): + case( GL2.GL_BYTE ): + case( GL2.GL_UNSIGNED_SHORT ): + case( GL2.GL_SHORT ): + case( GL2.GL_UNSIGNED_INT ): + case( GL2.GL_INT ): + case( GL2.GL_FLOAT ): + case( GL2.GL_UNSIGNED_BYTE_3_3_2 ): + case( GL2.GL_UNSIGNED_BYTE_2_3_3_REV ): + case( GL2.GL_UNSIGNED_SHORT_5_6_5 ): + case( GL2.GL_UNSIGNED_SHORT_5_6_5_REV ): + case( GL2.GL_UNSIGNED_SHORT_4_4_4_4 ): + case( GL2.GL_UNSIGNED_SHORT_4_4_4_4_REV ): + case( GL2.GL_UNSIGNED_SHORT_5_5_5_1 ): + case( GL2.GL_UNSIGNED_SHORT_1_5_5_5_REV ): + case( GL2.GL_UNSIGNED_INT_8_8_8_8 ): + case( GL2.GL_UNSIGNED_INT_8_8_8_8_REV ): + case( GL2.GL_UNSIGNED_INT_10_10_10_2 ): + case( GL2.GL_UNSIGNED_INT_2_10_10_10_REV ): + dstImage = ByteBuffer.allocateDirect( memreq ).order( ByteOrder.nativeOrder() ); + break; + default: + return( GLU.GLU_INVALID_ENUM ); + } + } catch( OutOfMemoryError ome ) { + gl.glPixelStorei( GL2.GL_UNPACK_ALIGNMENT, psm.getUnpackAlignment() ); + gl.glPixelStorei( GL2.GL_UNPACK_SKIP_ROWS, psm.getUnpackSkipRows() ); + gl.glPixelStorei( GL2.GL_UNPACK_SKIP_PIXELS, psm.getUnpackSkipPixels() ); + gl.glPixelStorei( GL2.GL_UNPACK_ROW_LENGTH, psm.getUnpackRowLength() ); + gl.glPixelStorei( GL2.GL_UNPACK_SWAP_BYTES, (psm.getUnpackSwapBytes() ? 1 : 0) ); + return( GLU.GLU_OUT_OF_MEMORY ); + } + if( dstImage != null ) { + switch( type ) { + case( GL2.GL_UNSIGNED_BYTE ): + HalveImage.halveImage_ubyte( cmpts, width, height, data, dstImage, element_size, rowsize, group_size ); + break; + case( GL2.GL_BYTE ): + HalveImage.halveImage_byte( cmpts, width, height, data, dstImage, element_size, rowsize, group_size ); + break; + case( GL2.GL_UNSIGNED_SHORT ): + HalveImage.halveImage_ushort( cmpts, width, height, data, dstImage.asShortBuffer(), element_size, rowsize, group_size, myswap_bytes ); + break; + case( GL2.GL_SHORT ): + HalveImage.halveImage_short( cmpts, width, height, data, dstImage.asShortBuffer(), element_size, rowsize, group_size, myswap_bytes ); + break; + case( GL2.GL_UNSIGNED_INT ): + HalveImage.halveImage_uint( cmpts, width, height, data, dstImage.asIntBuffer(), element_size, rowsize, group_size, myswap_bytes ); + break; + case( GL2.GL_INT ): + HalveImage.halveImage_int( cmpts, width, height, data, dstImage.asIntBuffer(), element_size, rowsize, group_size, myswap_bytes ); + break; + case( GL2.GL_FLOAT ): + HalveImage.halveImage_float( cmpts, width, height, data, dstImage.asFloatBuffer(), element_size, rowsize, group_size, myswap_bytes ); + break; + case( GL2.GL_UNSIGNED_BYTE_3_3_2 ): + assert( format == GL2.GL_RGB ); + HalveImage.halveImagePackedPixel( 3, new Extract332(), width, height, data, dstImage, element_size, rowsize, myswap_bytes ); + break; + case( GL2.GL_UNSIGNED_BYTE_2_3_3_REV ): + assert( format == GL2.GL_RGB ); + HalveImage.halveImagePackedPixel( 3, new Extract233rev(), width, height, data, dstImage, element_size, rowsize, myswap_bytes ); + break; + case( GL2.GL_UNSIGNED_SHORT_5_6_5 ): + HalveImage.halveImagePackedPixel( 3, new Extract565(), width, height, data, dstImage, element_size, rowsize, myswap_bytes ); + break; + case( GL2.GL_UNSIGNED_SHORT_5_6_5_REV ): + HalveImage.halveImagePackedPixel( 3, new Extract565rev(), width, height, data, dstImage, element_size, rowsize, myswap_bytes ); + break; + case( GL2.GL_UNSIGNED_SHORT_4_4_4_4 ): + HalveImage.halveImagePackedPixel( 4, new Extract4444(), width, height, data, dstImage, element_size, rowsize, myswap_bytes ); + break; + case( GL2.GL_UNSIGNED_SHORT_4_4_4_4_REV ): + HalveImage.halveImagePackedPixel( 4, new Extract4444rev(), width, height, data, dstImage, element_size, rowsize, myswap_bytes ); + break; + case( GL2.GL_UNSIGNED_SHORT_5_5_5_1 ): + HalveImage.halveImagePackedPixel( 4, new Extract5551(), width, height, data, dstImage, element_size, rowsize, myswap_bytes ); + break; + case( GL2.GL_UNSIGNED_SHORT_1_5_5_5_REV ): + HalveImage.halveImagePackedPixel( 4, new Extract1555rev(), width, height, data, dstImage, element_size, rowsize, myswap_bytes ); + break; + case( GL2.GL_UNSIGNED_INT_8_8_8_8 ): + HalveImage.halveImagePackedPixel( 4, new Extract8888(), width, height, data, dstImage, element_size, rowsize, myswap_bytes ); + break; + case( GL2.GL_UNSIGNED_INT_8_8_8_8_REV ): + HalveImage.halveImagePackedPixel( 4, new Extract8888rev(), width, height, data, dstImage, element_size, rowsize, myswap_bytes ); + break; + case( GL2.GL_UNSIGNED_INT_10_10_10_2 ): + HalveImage.halveImagePackedPixel( 4, new Extract1010102(), width, height, data, dstImage, element_size, rowsize, myswap_bytes ); + break; + case( GL2.GL_UNSIGNED_INT_2_10_10_10_REV ): + HalveImage.halveImagePackedPixel( 4, new Extract2101010rev(), width, height, data, dstImage, element_size, rowsize, myswap_bytes ); + break; + default: + assert( false ); + break; + } + } + newwidth = width / 2; + newheight = height / 2; + // clamp to 1 + if( newwidth < 1 ) { + newwidth = 1; + } + if( newheight < 1 ) { + newheight = 1; + } + + myswap_bytes = false; + rowsize = newwidth * group_size; + memreq = Mipmap.image_size( newwidth, newheight, format, type ); + // swap srcImage and dstImage + tempImage = srcImage; + srcImage = dstImage; + dstImage = tempImage; + try { + switch( type ) { + case( GL2.GL_UNSIGNED_BYTE ): + case( GL2.GL_BYTE ): + case( GL2.GL_UNSIGNED_SHORT ): + case( GL2.GL_SHORT ): + case( GL2.GL_UNSIGNED_INT ): + case( GL2.GL_INT ): + case( GL2.GL_FLOAT ): + case( GL2.GL_UNSIGNED_BYTE_3_3_2 ): + case( GL2.GL_UNSIGNED_BYTE_2_3_3_REV ): + case( GL2.GL_UNSIGNED_SHORT_5_6_5 ): + case( GL2.GL_UNSIGNED_SHORT_5_6_5_REV ): + case( GL2.GL_UNSIGNED_SHORT_4_4_4_4 ): + case( GL2.GL_UNSIGNED_SHORT_4_4_4_4_REV ): + case( GL2.GL_UNSIGNED_SHORT_5_5_5_1 ): + case( GL2.GL_UNSIGNED_SHORT_1_5_5_5_REV ): + case( GL2.GL_UNSIGNED_INT_8_8_8_8 ): + case( GL2.GL_UNSIGNED_INT_8_8_8_8_REV ): + case( GL2.GL_UNSIGNED_INT_10_10_10_2 ): + case( GL2.GL_UNSIGNED_INT_2_10_10_10_REV ): + dstImage = ByteBuffer.allocateDirect( memreq ).order( ByteOrder.nativeOrder() ); + break; + default: + return( GLU.GLU_INVALID_ENUM ); + } + } catch( OutOfMemoryError ome ) { + gl.glPixelStorei( GL2.GL_UNPACK_ALIGNMENT, psm.getUnpackAlignment() ); + gl.glPixelStorei( GL2.GL_UNPACK_SKIP_ROWS, psm.getUnpackSkipRows() ); + gl.glPixelStorei( GL2.GL_UNPACK_SKIP_PIXELS, psm.getUnpackSkipPixels() ); + gl.glPixelStorei( GL2.GL_UNPACK_ROW_LENGTH, psm.getUnpackRowLength() ); + gl.glPixelStorei( GL2.GL_UNPACK_SWAP_BYTES, (psm.getUnpackSwapBytes() ? 1 : 0) ); + return( GLU.GLU_OUT_OF_MEMORY ); + } + // level userLevel+1 is in srcImage; level userLevel already saved + level = userLevel + 1; + } else { // user's image is not nice powerof2 size square + memreq = Mipmap.image_size( newwidth, newheight, format, type ); + try { + switch( type ) { + case( GL2.GL_UNSIGNED_BYTE ): + case( GL2.GL_BYTE ): + case( GL2.GL_UNSIGNED_SHORT ): + case( GL2.GL_SHORT ): + case( GL2.GL_UNSIGNED_INT ): + case( GL2.GL_INT ): + case( GL2.GL_FLOAT ): + case( GL2.GL_UNSIGNED_BYTE_3_3_2 ): + case( GL2.GL_UNSIGNED_BYTE_2_3_3_REV ): + case( GL2.GL_UNSIGNED_SHORT_5_6_5 ): + case( GL2.GL_UNSIGNED_SHORT_5_6_5_REV ): + case( GL2.GL_UNSIGNED_SHORT_4_4_4_4 ): + case( GL2.GL_UNSIGNED_SHORT_4_4_4_4_REV ): + case( GL2.GL_UNSIGNED_SHORT_5_5_5_1 ): + case( GL2.GL_UNSIGNED_SHORT_1_5_5_5_REV ): + case( GL2.GL_UNSIGNED_INT_8_8_8_8 ): + case( GL2.GL_UNSIGNED_INT_8_8_8_8_REV ): + case( GL2.GL_UNSIGNED_INT_10_10_10_2 ): + case( GL2.GL_UNSIGNED_INT_2_10_10_10_REV ): + dstImage = ByteBuffer.allocateDirect( memreq ).order( ByteOrder.nativeOrder() ); + break; + default: + return( GLU.GLU_INVALID_ENUM ); + } + } catch( OutOfMemoryError ome ) { + gl.glPixelStorei( GL2.GL_UNPACK_ALIGNMENT, psm.getUnpackAlignment() ); + gl.glPixelStorei( GL2.GL_UNPACK_SKIP_ROWS, psm.getUnpackSkipRows() ); + gl.glPixelStorei( GL2.GL_UNPACK_SKIP_PIXELS, psm.getUnpackSkipPixels() ); + gl.glPixelStorei( GL2.GL_UNPACK_ROW_LENGTH, psm.getUnpackRowLength() ); + gl.glPixelStorei( GL2.GL_UNPACK_SWAP_BYTES, (psm.getUnpackSwapBytes() ? 1 : 0) ); + return( GLU.GLU_OUT_OF_MEMORY ); + } + data.reset(); + switch( type ) { + case( GL2.GL_UNSIGNED_BYTE ): + ScaleInternal.scale_internal_ubyte( cmpts, width, height, data, + newwidth, newheight, dstImage, element_size, rowsize, group_size ); + break; + case( GL2.GL_BYTE ): + ScaleInternal.scale_internal_byte( cmpts, width, height, data, newwidth, + newheight, dstImage, element_size, rowsize, group_size ); + break; + case( GL2.GL_UNSIGNED_SHORT ): + ScaleInternal.scale_internal_ushort( cmpts, width, height, data, newwidth, + newheight, dstImage.asShortBuffer(), element_size, rowsize, group_size, myswap_bytes ); + break; + case( GL2.GL_SHORT ): + ScaleInternal.scale_internal_ushort( cmpts, width, height, data, newwidth, + newheight, dstImage.asShortBuffer(), element_size, rowsize, group_size, myswap_bytes ); + break; + case( GL2.GL_UNSIGNED_INT ): + ScaleInternal.scale_internal_uint( cmpts, width, height, data, newwidth, + newheight, dstImage.asIntBuffer(), element_size, rowsize, group_size, myswap_bytes ); + break; + case( GL2.GL_INT ): + ScaleInternal.scale_internal_int( cmpts, width, height, data, newwidth, + newheight, dstImage.asIntBuffer(), element_size, rowsize, group_size, myswap_bytes ); + break; + case( GL2.GL_FLOAT ): + ScaleInternal.scale_internal_float( cmpts, width, height, data, newwidth, + newheight, dstImage.asFloatBuffer(), element_size, rowsize, group_size, myswap_bytes ); + break; + case( GL2.GL_UNSIGNED_BYTE_3_3_2 ): + ScaleInternal.scaleInternalPackedPixel( 3, new Extract332(), width, height, data, newwidth, + newheight, dstImage, element_size, rowsize, myswap_bytes ); + break; + case( GL2.GL_UNSIGNED_BYTE_2_3_3_REV ): + ScaleInternal.scaleInternalPackedPixel( 3, new Extract233rev(), width, height, data, newwidth, + newheight, dstImage, element_size, rowsize, myswap_bytes ); + break; + case( GL2.GL_UNSIGNED_SHORT_5_6_5 ): + ScaleInternal.scaleInternalPackedPixel( 3, new Extract565(), width, height, data, newwidth, + newheight, dstImage, element_size, rowsize, myswap_bytes ); + break; + case( GL2.GL_UNSIGNED_SHORT_5_6_5_REV ): + ScaleInternal.scaleInternalPackedPixel( 3, new Extract565rev(), width, height, data, newwidth, + newheight, dstImage, element_size, rowsize, myswap_bytes ); + break; + case( GL2.GL_UNSIGNED_SHORT_4_4_4_4 ): + ScaleInternal.scaleInternalPackedPixel( 4, new Extract4444(), width, height, data, newwidth, + newheight, dstImage, element_size, rowsize, myswap_bytes ); + break; + case( GL2.GL_UNSIGNED_SHORT_4_4_4_4_REV ): + ScaleInternal.scaleInternalPackedPixel( 4, new Extract4444rev(), width, height, data, newwidth, + newheight, dstImage, element_size, rowsize, myswap_bytes ); + break; + case( GL2.GL_UNSIGNED_SHORT_5_5_5_1 ): + ScaleInternal.scaleInternalPackedPixel( 4, new Extract5551(), width, height, data, newwidth, + newheight, dstImage, element_size, rowsize, myswap_bytes ); + break; + case( GL2.GL_UNSIGNED_SHORT_1_5_5_5_REV ): + ScaleInternal.scaleInternalPackedPixel( 4, new Extract1555rev(), width, height, data, newwidth, + newheight, dstImage, element_size, rowsize, myswap_bytes ); + break; + case( GL2.GL_UNSIGNED_INT_8_8_8_8 ): + ScaleInternal.scaleInternalPackedPixel( 4, new Extract8888(), width, height, data, newwidth, + newheight, dstImage, element_size, rowsize, myswap_bytes ); + break; + case( GL2.GL_UNSIGNED_INT_8_8_8_8_REV ): + ScaleInternal.scaleInternalPackedPixel( 4, new Extract8888rev(), width, height, data, newwidth, + newheight, dstImage, element_size, rowsize, myswap_bytes ); + break; + case( GL2.GL_UNSIGNED_INT_10_10_10_2 ): + ScaleInternal.scaleInternalPackedPixel( 4, new Extract1010102(), width, height, data, newwidth, + newheight, dstImage, element_size, rowsize, myswap_bytes ); + break; + case( GL2.GL_UNSIGNED_INT_2_10_10_10_REV ): + ScaleInternal.scaleInternalPackedPixel( 4, new Extract2101010rev(), width, height, data, newwidth, + newheight, dstImage, element_size, rowsize, myswap_bytes ); + break; + default: + assert( false ); + break; + } + myswap_bytes = false; + rowsize = newwidth * group_size; + // swap dstImage and srcImage + tempImage = srcImage; + srcImage = dstImage; + dstImage = tempImage; + + if( levels != 0 ) { // use as little memory as possible + int nextWidth = newwidth / 2; + int nextHeight = newheight / 2; + if( nextWidth < 1 ) { + nextWidth = 1; + } + if( nextHeight < 1 ) { + nextHeight = 1; + } + + memreq = Mipmap.image_size( nextWidth, nextHeight, format, type ); + try { + switch( type ) { + case( GL2.GL_UNSIGNED_BYTE ): + case( GL2.GL_BYTE ): + case( GL2.GL_UNSIGNED_SHORT ): + case( GL2.GL_SHORT ): + case( GL2.GL_UNSIGNED_INT ): + case( GL2.GL_INT ): + case( GL2.GL_FLOAT ): + case( GL2.GL_UNSIGNED_BYTE_3_3_2 ): + case( GL2.GL_UNSIGNED_BYTE_2_3_3_REV ): + case( GL2.GL_UNSIGNED_SHORT_5_6_5 ): + case( GL2.GL_UNSIGNED_SHORT_5_6_5_REV ): + case( GL2.GL_UNSIGNED_SHORT_4_4_4_4 ): + case( GL2.GL_UNSIGNED_SHORT_4_4_4_4_REV ): + case( GL2.GL_UNSIGNED_SHORT_5_5_5_1 ): + case( GL2.GL_UNSIGNED_SHORT_1_5_5_5_REV ): + case( GL2.GL_UNSIGNED_INT_8_8_8_8 ): + case( GL2.GL_UNSIGNED_INT_8_8_8_8_REV ): + case( GL2.GL_UNSIGNED_INT_10_10_10_2 ): + case( GL2.GL_UNSIGNED_INT_2_10_10_10_REV ): + dstImage = ByteBuffer.allocateDirect( memreq ).order( ByteOrder.nativeOrder() ); + break; + default: + return( GLU.GLU_INVALID_ENUM ); + } + } catch( OutOfMemoryError ome ) { + gl.glPixelStorei( GL2.GL_UNPACK_ALIGNMENT, psm.getUnpackAlignment() ); + gl.glPixelStorei( GL2.GL_UNPACK_SKIP_ROWS, psm.getUnpackSkipRows() ); + gl.glPixelStorei( GL2.GL_UNPACK_SKIP_PIXELS, psm.getUnpackSkipPixels() ); + gl.glPixelStorei( GL2.GL_UNPACK_ROW_LENGTH, psm.getUnpackRowLength() ); + gl.glPixelStorei( GL2.GL_UNPACK_SWAP_BYTES, (psm.getUnpackSwapBytes() ? 1 : 0) ); + return( GLU.GLU_OUT_OF_MEMORY ); + } + } + // level userLevel is in srcImage; nothing saved yet + level = userLevel; + } + + gl.glPixelStorei( GL2.GL_UNPACK_SWAP_BYTES, GL2.GL_FALSE ); + if( baseLevel <= level && level <= maxLevel ) { + srcImage.rewind(); + gl.glTexImage2D( target, level, internalFormat, newwidth, newheight, 0, format, type, srcImage ); + if (DEBUG) { + System.err.println("GL Error(" + level + "): " + gl.glGetError() ); + if (VERBOSE) { + srcImage.limit( Mipmap.image_size( newwidth, newheight, format, type ) ); + writeTargaFile("glu2DMipmapJ" + level + ".tga", + srcImage, newwidth, newheight); + srcImage.clear(); + } + } + } + + level++; // update current level for the loop + for( ; level <= levels; level++ ) { + srcImage.rewind(); + dstImage.rewind(); + switch( type ) { + case( GL2.GL_UNSIGNED_BYTE ): + HalveImage.halveImage_ubyte( cmpts, newwidth, newheight, srcImage, dstImage, element_size, rowsize, group_size ); + break; + case( GL2.GL_BYTE ): + HalveImage.halveImage_byte( cmpts, newwidth, newheight, srcImage, dstImage, element_size, rowsize, group_size ); + break; + case( GL2.GL_UNSIGNED_SHORT ): + HalveImage.halveImage_ushort( cmpts, newwidth, newheight, srcImage, dstImage.asShortBuffer(), element_size, rowsize, group_size, myswap_bytes ); + break; + case( GL2.GL_SHORT ): + HalveImage.halveImage_short( cmpts, newwidth, newheight, srcImage, dstImage.asShortBuffer(), element_size, rowsize, group_size, myswap_bytes ); + break; + case( GL2.GL_UNSIGNED_INT ): + HalveImage.halveImage_uint( cmpts, newwidth, newheight, srcImage, dstImage.asIntBuffer(), element_size, rowsize, group_size, myswap_bytes ); + break; + case( GL2.GL_INT ): + HalveImage.halveImage_int( cmpts, newwidth, newheight, srcImage, dstImage.asIntBuffer(), element_size, rowsize, group_size, myswap_bytes ); + break; + case( GL2.GL_FLOAT ): + HalveImage.halveImage_float( cmpts, newwidth, newheight, srcImage, dstImage.asFloatBuffer(), element_size, rowsize, group_size, myswap_bytes ); + break; + case( GL2.GL_UNSIGNED_BYTE_3_3_2 ): + assert( format == GL2.GL_RGB ); + HalveImage.halveImagePackedPixel( 3, new Extract332(), newwidth, newheight, srcImage, dstImage, element_size, rowsize, myswap_bytes ); + break; + case( GL2.GL_UNSIGNED_BYTE_2_3_3_REV ): + assert( format == GL2.GL_RGB ); + HalveImage.halveImagePackedPixel( 3, new Extract233rev(), newwidth, newheight, srcImage, dstImage, element_size, rowsize, myswap_bytes ); + break; + case( GL2.GL_UNSIGNED_SHORT_5_6_5 ): + HalveImage.halveImagePackedPixel( 3, new Extract565(), newwidth, newheight, srcImage, dstImage, element_size, rowsize, myswap_bytes ); + break; + case( GL2.GL_UNSIGNED_SHORT_5_6_5_REV ): + HalveImage.halveImagePackedPixel( 3, new Extract565rev(), newwidth, newheight, srcImage, dstImage, element_size, rowsize, myswap_bytes ); + break; + case( GL2.GL_UNSIGNED_SHORT_4_4_4_4 ): + HalveImage.halveImagePackedPixel( 4, new Extract4444(), newwidth, newheight, srcImage, dstImage, element_size, rowsize, myswap_bytes ); + break; + case( GL2.GL_UNSIGNED_SHORT_4_4_4_4_REV ): + HalveImage.halveImagePackedPixel( 4, new Extract4444rev(), newwidth, newheight, srcImage, dstImage, element_size, rowsize, myswap_bytes ); + break; + case( GL2.GL_UNSIGNED_SHORT_5_5_5_1 ): + HalveImage.halveImagePackedPixel( 4, new Extract5551(), newwidth, newheight, srcImage, dstImage, element_size, rowsize, myswap_bytes ); + break; + case( GL2.GL_UNSIGNED_SHORT_1_5_5_5_REV ): + HalveImage.halveImagePackedPixel( 4, new Extract1555rev(), newwidth, newheight, srcImage, dstImage, element_size, rowsize, myswap_bytes ); + break; + case( GL2.GL_UNSIGNED_INT_8_8_8_8 ): + HalveImage.halveImagePackedPixel( 4, new Extract8888(), newwidth, newheight, srcImage, dstImage, element_size, rowsize, myswap_bytes ); + break; + case( GL2.GL_UNSIGNED_INT_8_8_8_8_REV ): + HalveImage.halveImagePackedPixel( 4, new Extract8888rev(), newwidth, newheight, srcImage, dstImage, element_size, rowsize, myswap_bytes ); + break; + case( GL2.GL_UNSIGNED_INT_10_10_10_2 ): + HalveImage.halveImagePackedPixel( 4, new Extract1010102(), newwidth, newheight, srcImage, dstImage, element_size, rowsize, myswap_bytes ); + break; + case( GL2.GL_UNSIGNED_INT_2_10_10_10_REV ): + HalveImage.halveImagePackedPixel( 4, new Extract2101010rev(), newwidth, newheight, srcImage, dstImage, element_size, rowsize, myswap_bytes ); + break; + default: + assert( false ); + break; + } + + // swap dstImage and srcImage + tempImage = srcImage; + srcImage = dstImage; + dstImage = tempImage; + + if( newwidth > 1 ) { + newwidth /= 2; + rowsize /= 2; + } + if( newheight > 1 ) { + newheight /= 2; + } + // compute amount to pad per row if any + int rowPad = rowsize % psm.getUnpackAlignment(); + + // should row be padded + if( rowPad == 0 ) { + // call teximage with srcImage untouched since its not padded + if( baseLevel <= level && level <= maxLevel ) { + srcImage.rewind(); + gl.glTexImage2D( target, level, internalFormat, newwidth, newheight, 0, format, type, srcImage ); + if (DEBUG) { + System.err.println("GL Error(" + level + "): " + gl.glGetError() ); + if (VERBOSE) { + srcImage.limit( Mipmap.image_size( newwidth, newheight, format, type ) ); + writeTargaFile("glu2DMipmapJ" + level + ".tga", + srcImage, newwidth, newheight); + srcImage.clear(); + } + } + } + } else { + // compute length of new row in bytes, including padding + int newRowLength = rowsize + psm.getUnpackAlignment() - rowPad; + int ii, jj; + int dstTrav; + int srcTrav; + + // allocate new image for mipmap of size newRowLength x newheight + ByteBuffer newMipmapImage = null; + try { + newMipmapImage = ByteBuffer.allocateDirect( newRowLength * newheight ); + } catch( OutOfMemoryError ome ) { + gl.glPixelStorei( GL2.GL_UNPACK_ALIGNMENT, psm.getUnpackAlignment() ); + gl.glPixelStorei( GL2.GL_UNPACK_SKIP_ROWS, psm.getUnpackSkipRows() ); + gl.glPixelStorei( GL2.GL_UNPACK_SKIP_PIXELS, psm.getUnpackSkipPixels() ); + gl.glPixelStorei( GL2.GL_UNPACK_ROW_LENGTH, psm.getUnpackRowLength() ); + gl.glPixelStorei( GL2.GL_UNPACK_SWAP_BYTES, (psm.getUnpackSwapBytes() ? 1 : 0) ); + return( GLU.GLU_OUT_OF_MEMORY ); + } + srcImage.rewind(); + // copy image from srcImage into newMipmapImage by rows + for( ii = 0; ii < newheight; ii++ ) { + newMipmapImage.position(newRowLength * ii); + for( jj = 0; jj < rowsize; jj++ ) { + newMipmapImage.put( srcImage.get() ); + } + } + + // and use this new image for mipmapping instead + if( baseLevel <= level && level <= maxLevel ) { + newMipmapImage.rewind(); + gl.glTexImage2D( target, level, internalFormat, newwidth, newheight, 0, format, type, newMipmapImage ); + if (DEBUG) { + System.err.println("GL Error(" + level + " padded): " + gl.glGetError() ); + if (VERBOSE) { + writeTargaFile("glu2DMipmapJ" + level + ".tga", + newMipmapImage, newwidth, newheight); + } + } + } + } + } + gl.glPixelStorei( GL2.GL_UNPACK_ALIGNMENT, psm.getUnpackAlignment() ); + gl.glPixelStorei( GL2.GL_UNPACK_SKIP_ROWS, psm.getUnpackSkipRows() ); + gl.glPixelStorei( GL2.GL_UNPACK_SKIP_PIXELS, psm.getUnpackSkipPixels() ); + gl.glPixelStorei( GL2.GL_UNPACK_ROW_LENGTH, psm.getUnpackRowLength() ); + gl.glPixelStorei( GL2.GL_UNPACK_SWAP_BYTES, (psm.getUnpackSwapBytes() ? 1 : 0) ); + + return( 0 ); + } + + public static int fastBuild2DMipmaps( GL gl, PixelStorageModes psm, int target, + int components, int width, int height, int format, int type, ByteBuffer data ) { + int[] newwidth = new int[1]; + int[] newheight = new int[1]; + int level, levels; + ByteBuffer newImage; + int newImage_width; + int newImage_height; + ByteBuffer otherImage; + ByteBuffer imageTemp; + int memreq; + int maxsize; + int cmpts; + + Mipmap.closestFit( gl, target, width, height, components, format, type, newwidth, + newheight ); + + levels = Mipmap.computeLog( newwidth[0] ); + level = Mipmap.computeLog( newheight[0] ); + if( level > levels ) { + levels = level; + } + + cmpts = Mipmap.elements_per_group( format, type ); + + otherImage = null; + // No need to copy the user data if its packed correctly. + // Make sure that later routines don't change that data. + + if( psm.getUnpackSkipRows() == 0 && psm.getUnpackSkipPixels() == 0 ) { + newImage = data; + newImage_width = width; + newImage_height = height; + } else { + int rowsize; + int group_per_line; + int elements_per_line; + int start; + int iter; + int iter2; + int i, j; + + try { + newImage = ByteBuffer.allocateDirect( Mipmap.image_size( + width, height, format, GL2.GL_UNSIGNED_BYTE ) ).order( ByteOrder.nativeOrder() ); + } catch( OutOfMemoryError err ) { + return( GLU.GLU_OUT_OF_MEMORY ); + } + newImage_width = width; + newImage_height = height; + + // Abbreviated version of fill_image for the restricted case. + if( psm.getUnpackRowLength() > 0 ) { + group_per_line = psm.getUnpackRowLength(); + } else { + group_per_line = width; + } + rowsize = group_per_line * cmpts; + elements_per_line = width * cmpts; + start = psm.getUnpackSkipRows() * rowsize + psm.getUnpackSkipPixels() * cmpts; + + for( i = 0; i < height; i++ ) { + iter = start; + data.position( iter ); + for( j = 0; j < elements_per_line; j++ ) { + newImage.put( data.get() ); + } + start += rowsize; + } + } + + gl.glPixelStorei( GL2.GL_UNPACK_ALIGNMENT, 1 ); + gl.glPixelStorei( GL2.GL_UNPACK_SKIP_ROWS, 0 ); + gl.glPixelStorei( GL2.GL_UNPACK_SKIP_PIXELS, 0 ); + gl.glPixelStorei( GL2.GL_UNPACK_ROW_LENGTH, 0 ); + gl.glPixelStorei( GL2.GL_UNPACK_SWAP_BYTES, GL2.GL_FALSE ); + + for( level = 0; level <= levels; level++ ) { + if( newImage_width == newwidth[0] && newImage_height == newheight[0] ) { + // use newImage for this level + newImage.rewind(); + gl.glTexImage2D( target, level, components, newImage_width, newImage_height, + 0, format, GL2.GL_UNSIGNED_BYTE, newImage ); + } else { + if( otherImage == null ) { + memreq = Mipmap.image_size( newwidth[0], newheight[0], format, GL2.GL_UNSIGNED_BYTE ); + try { + otherImage = ByteBuffer.allocateDirect( memreq ).order( ByteOrder.nativeOrder() ); + } catch( OutOfMemoryError err ) { + gl.glPixelStorei( GL2.GL_UNPACK_ALIGNMENT, psm.getUnpackAlignment() ); + gl.glPixelStorei( GL2.GL_UNPACK_SKIP_ROWS, psm.getUnpackSkipRows() ); + gl.glPixelStorei( GL2.GL_UNPACK_SKIP_PIXELS, psm.getUnpackSkipPixels() ); + gl.glPixelStorei( GL2.GL_UNPACK_ROW_LENGTH, psm.getUnpackRowLength() ); + gl.glPixelStorei( GL2.GL_UNPACK_SWAP_BYTES, ( psm.getUnpackSwapBytes() ? 1 : 0 ) ) ; + return( GLU.GLU_OUT_OF_MEMORY ); + } + } + // swap newImage and otherImage + imageTemp = otherImage; + otherImage = newImage; + newImage = imageTemp; + + newImage_width = newwidth[0]; + newImage_height = newheight[0]; + newImage.rewind(); + gl.glTexImage2D( target, level, components, newImage_width, newImage_height, + 0, format, GL2.GL_UNSIGNED_BYTE, newImage ); + } + if( newwidth[0] > 1 ) { + newwidth[0] /= 2; + } + if( newheight[0] > 1 ) { + newheight[0] /= 2; + } + } + gl.glPixelStorei( GL2.GL_UNPACK_ALIGNMENT, psm.getUnpackAlignment() ); + gl.glPixelStorei( GL2.GL_UNPACK_SKIP_ROWS, psm.getUnpackSkipRows() ); + gl.glPixelStorei( GL2.GL_UNPACK_SKIP_PIXELS, psm.getUnpackSkipPixels() ); + gl.glPixelStorei( GL2.GL_UNPACK_ROW_LENGTH, psm.getUnpackRowLength() ); + gl.glPixelStorei( GL2.GL_UNPACK_SWAP_BYTES, ( psm.getUnpackSwapBytes() ? 1 : 0 ) ) ; + + return( 0 ); + } + + public static int gluBuild3DMipmapLevelsCore( GL gl, int target, int internalFormat, + int width, int height, int depth, int widthPowerOf2, int heightPowerOf2, + int depthPowerOf2, int format, int type, int userLevel, int baseLevel, + int maxLevel, ByteBuffer data ) { + int newWidth; + int newHeight; + int newDepth; + int level, levels; + ByteBuffer usersImage; + ByteBuffer srcImage, dstImage, tempImage; + int newImageWidth; + int newImageHeight; + int newImageDepth; + int memReq; + int maxSize; + int cmpts; + + boolean myswapBytes; + int groupsPerLine, elementSize, groupSize; + int rowsPerImage, imageSize; + int rowSize, padding; + PixelStorageModes psm = new PixelStorageModes(); + + assert( Mipmap.checkMipmapArgs( internalFormat, format, type ) == 0 ); + assert( width >= 1 && height >= 1 && depth >= 1 ); + assert( type != GL2.GL_BITMAP ); + + srcImage = dstImage = null; + + newWidth = widthPowerOf2; + newHeight = heightPowerOf2; + newDepth = depthPowerOf2; + levels = Mipmap.computeLog( newWidth ); + level = Mipmap.computeLog( newHeight ); + if( level > levels ) { + levels = level; + } + level = Mipmap.computeLog( newDepth ); + if( level > levels ) { + levels = level; + } + + levels += userLevel; + + Mipmap.retrieveStoreModes3D( gl, psm ); + myswapBytes = psm.getUnpackSwapBytes(); + cmpts = Mipmap.elements_per_group( format, type ); + if( psm.getUnpackRowLength() > 0 ) { + groupsPerLine = psm.getUnpackRowLength(); + } else { + groupsPerLine = width; + } + + elementSize = Mipmap.bytes_per_element( type ); + groupSize = elementSize * cmpts; + if( elementSize == 1 ) { + myswapBytes = false; + } + + // 3dstuff + if( psm.getUnpackImageHeight() > 0 ) { + rowsPerImage = psm.getUnpackImageHeight(); + } else { + rowsPerImage = height; + } + + rowSize = groupsPerLine * groupSize; + padding = ( rowSize % psm.getUnpackAlignment() ); + if( padding != 0 ) { + rowSize += psm.getUnpackAlignment() - padding; + } + + imageSize = rowsPerImage * rowSize; + + usersImage = data.duplicate(); + usersImage.position( psm.getUnpackSkipRows() * rowSize + + psm.getUnpackSkipPixels() * groupSize + + psm.getUnpackSkipImages() * imageSize ); + usersImage.mark(); + + gl.glPixelStorei( GL2.GL_UNPACK_SKIP_ROWS, 0 ); + gl.glPixelStorei( GL2.GL_UNPACK_SKIP_PIXELS, 0 ); + gl.glPixelStorei( GL2.GL_UNPACK_ROW_LENGTH, 0 ); + gl.glPixelStorei( GL2.GL_UNPACK_SKIP_IMAGES, 0 ); + gl.glPixelStorei( GL2.GL_UNPACK_IMAGE_HEIGHT, 0 ); + + level = userLevel; + + if( width == newWidth && height == newHeight && depth == newDepth ) { + // use usersImage for level userlevel + if( baseLevel <= level && level <= maxLevel ) { + gl.getGL2().glTexImage3D( target, level, internalFormat, width, height, depth, + 0, format, type, usersImage ); + } + if( levels == 0 ) { /* we're done. clean up and return */ + gl.glPixelStorei( GL2.GL_UNPACK_ALIGNMENT, psm.getUnpackAlignment() ); + gl.glPixelStorei( GL2.GL_UNPACK_SKIP_ROWS, psm.getUnpackSkipRows() ); + gl.glPixelStorei( GL2.GL_UNPACK_SKIP_PIXELS, psm.getUnpackSkipPixels() ); + gl.glPixelStorei( GL2.GL_UNPACK_ROW_LENGTH, psm.getUnpackRowLength() ); + gl.glPixelStorei( GL2.GL_UNPACK_SWAP_BYTES, psm.getUnpackSwapBytes() ? 1 : 0 ); + gl.glPixelStorei( GL2.GL_UNPACK_SKIP_IMAGES, psm.getUnpackSkipImages() ); + gl.glPixelStorei( GL2.GL_UNPACK_IMAGE_HEIGHT, psm.getUnpackImageHeight() ); + return( 0 ); + } + int nextWidth = newWidth / 2; + int nextHeight = newHeight / 2; + int nextDepth = newDepth / 2; + + // clamp to one + if( nextWidth < 1 ) { + nextWidth = 1; + } + if( nextHeight < 1 ) { + nextHeight = 1; + } + if( nextDepth < 1 ) { + nextDepth = 1; + } + memReq = Mipmap.imageSize3D( nextWidth, nextHeight, nextDepth, format, type ); + try { + switch( type ) { + case( GL2.GL_UNSIGNED_BYTE ): + case( GL2.GL_BYTE ): + case( GL2.GL_UNSIGNED_SHORT ): + case( GL2.GL_SHORT ): + case( GL2.GL_UNSIGNED_INT ): + case( GL2.GL_INT ): + case( GL2.GL_FLOAT ): + case( GL2.GL_UNSIGNED_BYTE_3_3_2 ): + case( GL2.GL_UNSIGNED_BYTE_2_3_3_REV ): + case( GL2.GL_UNSIGNED_SHORT_5_6_5 ): + case( GL2.GL_UNSIGNED_SHORT_5_6_5_REV ): + case( GL2.GL_UNSIGNED_SHORT_4_4_4_4 ): + case( GL2.GL_UNSIGNED_SHORT_4_4_4_4_REV ): + case( GL2.GL_UNSIGNED_SHORT_5_5_5_1 ): + case( GL2.GL_UNSIGNED_SHORT_1_5_5_5_REV ): + case( GL2.GL_UNSIGNED_INT_8_8_8_8 ): + case( GL2.GL_UNSIGNED_INT_8_8_8_8_REV ): + case( GL2.GL_UNSIGNED_INT_10_10_10_2 ): + case( GL2.GL_UNSIGNED_INT_2_10_10_10_REV ): + dstImage = ByteBuffer.allocateDirect( memReq ).order( ByteOrder.nativeOrder() ); + break; + default: + return( GLU.GLU_INVALID_ENUM ); + } + } catch( OutOfMemoryError err ) { + gl.glPixelStorei( GL2.GL_UNPACK_ALIGNMENT, psm.getUnpackAlignment() ); + gl.glPixelStorei( GL2.GL_UNPACK_SKIP_ROWS, psm.getUnpackSkipRows() ); + gl.glPixelStorei( GL2.GL_UNPACK_SKIP_PIXELS, psm.getUnpackSkipPixels() ); + gl.glPixelStorei( GL2.GL_UNPACK_ROW_LENGTH, psm.getUnpackRowLength() ); + gl.glPixelStorei( GL2.GL_UNPACK_SWAP_BYTES, psm.getUnpackSwapBytes() ? 1 : 0 ); + gl.glPixelStorei( GL2.GL_UNPACK_SKIP_IMAGES, psm.getUnpackSkipImages() ); + gl.glPixelStorei( GL2.GL_UNPACK_IMAGE_HEIGHT, psm.getUnpackImageHeight() ); + return( GLU.GLU_OUT_OF_MEMORY ); + } + + if( dstImage != null ) { + switch( type ) { + case( GL2.GL_UNSIGNED_BYTE ): + if( depth > 1 ) { + HalveImage.halveImage3D( cmpts, new ExtractUByte(), width, height, depth, + usersImage, dstImage, elementSize, + groupSize, rowSize, imageSize, myswapBytes ); + } else { + HalveImage.halveImage_ubyte( cmpts, width, height, usersImage, + dstImage, elementSize, rowSize, groupSize ); + } + break; + case( GL2.GL_BYTE ): + if( depth > 1 ) { + HalveImage.halveImage3D( cmpts, new ExtractSByte(), width, height, depth, + usersImage, dstImage, elementSize, groupSize, rowSize, + imageSize, myswapBytes ); + } else { + HalveImage.halveImage_byte( cmpts, width, height, usersImage, + dstImage, elementSize, rowSize, groupSize ); + } + break; + case( GL2.GL_UNSIGNED_SHORT ): + if( depth > 1 ) { + HalveImage.halveImage3D( cmpts, new ExtractUShort(), width, height, depth, + usersImage, dstImage, elementSize, groupSize, rowSize, + imageSize, myswapBytes ); + } else { + HalveImage.halveImage_ushort( cmpts, width, height, usersImage, + dstImage.asShortBuffer(), elementSize, rowSize, groupSize, myswapBytes ); + } + break; + case( GL2.GL_SHORT ): + if( depth > 1 ) { + HalveImage.halveImage3D( cmpts, new ExtractSShort(), width, height, depth, + usersImage, dstImage, elementSize, groupSize, rowSize, + imageSize, myswapBytes ); + } else { + HalveImage.halveImage_short( cmpts, width, height, usersImage, + dstImage.asShortBuffer(), elementSize, rowSize, groupSize, myswapBytes ); + } + break; + case( GL2.GL_UNSIGNED_INT ): + if( depth > 1 ) { + HalveImage.halveImage3D( cmpts, new ExtractUInt(), width, height, depth, + usersImage, dstImage, elementSize, groupSize, rowSize, + imageSize, myswapBytes ); + } else { + HalveImage.halveImage_uint( cmpts, width, height, usersImage, + dstImage.asIntBuffer(), elementSize, rowSize, groupSize, myswapBytes ); + } + break; + case( GL2.GL_INT ): + if( depth > 1 ) { + HalveImage.halveImage3D( cmpts, new ExtractSInt(), width, height, depth, + usersImage, dstImage, elementSize, groupSize, rowSize, + imageSize, myswapBytes ); + } else { + HalveImage.halveImage_int( cmpts, width, height, usersImage, + dstImage.asIntBuffer(), elementSize, rowSize, groupSize, myswapBytes ); + } + break; + case( GL2.GL_FLOAT ): + if( depth > 1 ) { + HalveImage.halveImage3D( cmpts, new ExtractFloat(), width, height, depth, + usersImage, dstImage, elementSize, groupSize, rowSize, + imageSize, myswapBytes ); + } else { + HalveImage.halveImage_float( cmpts, width, height, usersImage, + dstImage.asFloatBuffer(), elementSize, rowSize, groupSize, myswapBytes ); + } + break; + case( GL2.GL_UNSIGNED_BYTE_3_3_2 ): + assert( format == GL2.GL_RGB ); + HalveImage.halveImagePackedPixel3D( 3, new Extract332(), width, height, depth, usersImage, + dstImage, elementSize, rowSize, imageSize, myswapBytes ); + break; + case( GL2.GL_UNSIGNED_BYTE_2_3_3_REV ): + assert( format == GL2.GL_RGB ); + HalveImage.halveImagePackedPixel3D( 3, new Extract233rev(), width, height, depth, usersImage, + dstImage, elementSize, rowSize, imageSize, myswapBytes ); + break; + case( GL2.GL_UNSIGNED_SHORT_5_6_5 ): + HalveImage.halveImagePackedPixel3D( 3, new Extract565(), width, height, depth, usersImage, + dstImage, elementSize, rowSize, imageSize, myswapBytes ); + break; + case( GL2.GL_UNSIGNED_SHORT_5_6_5_REV ): + HalveImage.halveImagePackedPixel3D( 3, new Extract565rev(), width, height, depth, usersImage, + dstImage, elementSize, rowSize, imageSize, myswapBytes ); + break; + case( GL2.GL_UNSIGNED_SHORT_4_4_4_4 ): + HalveImage.halveImagePackedPixel3D( 4, new Extract4444(), width, height, depth, usersImage, + dstImage, elementSize, rowSize, imageSize, myswapBytes ); + break; + case( GL2.GL_UNSIGNED_SHORT_4_4_4_4_REV ): + HalveImage.halveImagePackedPixel3D( 4, new Extract4444rev(), width, height, depth, usersImage, + dstImage, elementSize, rowSize, imageSize, myswapBytes ); + break; + case( GL2.GL_UNSIGNED_SHORT_5_5_5_1 ): + HalveImage.halveImagePackedPixel3D( 4, new Extract5551(), width, height, depth, usersImage, + dstImage, elementSize, rowSize, imageSize, myswapBytes ); + break; + case( GL2.GL_UNSIGNED_SHORT_1_5_5_5_REV ): + HalveImage.halveImagePackedPixel3D( 4, new Extract1555rev(), width, height, depth, usersImage, + dstImage, elementSize, rowSize, imageSize, myswapBytes ); + break; + case( GL2.GL_UNSIGNED_INT_8_8_8_8 ): + HalveImage.halveImagePackedPixel3D( 4, new Extract8888(), width, height, depth, usersImage, + dstImage, elementSize, rowSize, imageSize, myswapBytes ); + break; + case( GL2.GL_UNSIGNED_INT_8_8_8_8_REV ): + HalveImage.halveImagePackedPixel3D( 4, new Extract8888rev(), width, height, depth, usersImage, + dstImage, elementSize, rowSize, imageSize, myswapBytes ); + break; + case( GL2.GL_UNSIGNED_INT_10_10_10_2 ): + HalveImage.halveImagePackedPixel3D( 4, new Extract1010102(), width, height, depth, usersImage, + dstImage, elementSize, rowSize, imageSize, myswapBytes ); + break; + case( GL2.GL_UNSIGNED_INT_2_10_10_10_REV ): + HalveImage.halveImagePackedPixel3D( 4, new Extract2101010rev(), width, height, depth, usersImage, + dstImage, elementSize, rowSize, imageSize, myswapBytes ); + break; + default: + assert( false ); + break; + } + } + newWidth = width / 2; + newHeight = height / 2; + newDepth = depth / 2; + // clamp to 1 + if( newWidth < 1 ) { + newWidth = 1; + } + if( newHeight < 1 ) { + newHeight = 1; + } + if( newDepth < 1 ) { + newDepth = 1; + } + + myswapBytes = false; + rowSize = newWidth * groupSize; + imageSize = rowSize * newHeight; + memReq = Mipmap.imageSize3D( newWidth, newHeight, newDepth, format, type ); + // swap srcImage and dstImage + tempImage = srcImage; + srcImage = dstImage; + dstImage = tempImage; + try { + switch( type ) { + case( GL2.GL_UNSIGNED_BYTE ): + case( GL2.GL_BYTE ): + case( GL2.GL_UNSIGNED_SHORT ): + case( GL2.GL_SHORT ): + case( GL2.GL_UNSIGNED_INT ): + case( GL2.GL_INT ): + case( GL2.GL_FLOAT ): + case( GL2.GL_UNSIGNED_BYTE_3_3_2 ): + case( GL2.GL_UNSIGNED_BYTE_2_3_3_REV ): + case( GL2.GL_UNSIGNED_SHORT_5_6_5 ): + case( GL2.GL_UNSIGNED_SHORT_5_6_5_REV ): + case( GL2.GL_UNSIGNED_SHORT_4_4_4_4 ): + case( GL2.GL_UNSIGNED_SHORT_4_4_4_4_REV ): + case( GL2.GL_UNSIGNED_SHORT_5_5_5_1 ): + case( GL2.GL_UNSIGNED_SHORT_1_5_5_5_REV ): + case( GL2.GL_UNSIGNED_INT_8_8_8_8 ): + case( GL2.GL_UNSIGNED_INT_8_8_8_8_REV ): + case( GL2.GL_UNSIGNED_INT_10_10_10_2 ): + case( GL2.GL_UNSIGNED_INT_2_10_10_10_REV ): + dstImage = ByteBuffer.allocateDirect( memReq ).order( ByteOrder.nativeOrder() ); + break; + default: + return( GLU.GLU_INVALID_ENUM ); + } + } catch( OutOfMemoryError err ) { + gl.glPixelStorei( GL2.GL_UNPACK_ALIGNMENT, psm.getUnpackAlignment() ); + gl.glPixelStorei( GL2.GL_UNPACK_SKIP_ROWS, psm.getUnpackSkipRows() ); + gl.glPixelStorei( GL2.GL_UNPACK_SKIP_PIXELS, psm.getUnpackSkipPixels() ); + gl.glPixelStorei( GL2.GL_UNPACK_ROW_LENGTH, psm.getUnpackRowLength() ); + gl.glPixelStorei( GL2.GL_UNPACK_SWAP_BYTES, psm.getUnpackSwapBytes() ? 1 : 0 ); + gl.glPixelStorei( GL2.GL_UNPACK_SKIP_IMAGES, psm.getUnpackSkipImages() ); + gl.glPixelStorei( GL2.GL_UNPACK_IMAGE_HEIGHT, psm.getUnpackImageHeight() ); + return( GLU.GLU_OUT_OF_MEMORY ); + } + + // level userLevel + 1 is in srcImage; level userLevel already saved + level = userLevel + 1; + } else { + memReq = Mipmap.imageSize3D( newWidth, newHeight, newDepth, format, type ); + try { + switch( type ) { + case( GL2.GL_UNSIGNED_BYTE ): + case( GL2.GL_BYTE ): + case( GL2.GL_UNSIGNED_SHORT ): + case( GL2.GL_SHORT ): + case( GL2.GL_UNSIGNED_INT ): + case( GL2.GL_INT ): + case( GL2.GL_FLOAT ): + case( GL2.GL_UNSIGNED_BYTE_3_3_2 ): + case( GL2.GL_UNSIGNED_BYTE_2_3_3_REV ): + case( GL2.GL_UNSIGNED_SHORT_5_6_5 ): + case( GL2.GL_UNSIGNED_SHORT_5_6_5_REV ): + case( GL2.GL_UNSIGNED_SHORT_4_4_4_4 ): + case( GL2.GL_UNSIGNED_SHORT_4_4_4_4_REV ): + case( GL2.GL_UNSIGNED_SHORT_5_5_5_1 ): + case( GL2.GL_UNSIGNED_SHORT_1_5_5_5_REV ): + case( GL2.GL_UNSIGNED_INT_8_8_8_8 ): + case( GL2.GL_UNSIGNED_INT_8_8_8_8_REV ): + case( GL2.GL_UNSIGNED_INT_10_10_10_2 ): + case( GL2.GL_UNSIGNED_INT_2_10_10_10_REV ): + dstImage = ByteBuffer.allocateDirect( memReq ).order( ByteOrder.nativeOrder() ); + break; + default: + return( GLU.GLU_INVALID_ENUM ); + } + } catch( OutOfMemoryError err ) { + gl.glPixelStorei( GL2.GL_UNPACK_ALIGNMENT, psm.getUnpackAlignment() ); + gl.glPixelStorei( GL2.GL_UNPACK_SKIP_ROWS, psm.getUnpackSkipRows() ); + gl.glPixelStorei( GL2.GL_UNPACK_SKIP_PIXELS, psm.getUnpackSkipPixels() ); + gl.glPixelStorei( GL2.GL_UNPACK_ROW_LENGTH, psm.getUnpackRowLength() ); + gl.glPixelStorei( GL2.GL_UNPACK_SWAP_BYTES, psm.getUnpackSwapBytes() ? 1 : 0 ); + gl.glPixelStorei( GL2.GL_UNPACK_SKIP_IMAGES, psm.getUnpackSkipImages() ); + gl.glPixelStorei( GL2.GL_UNPACK_IMAGE_HEIGHT, psm.getUnpackImageHeight() ); + return( GLU.GLU_OUT_OF_MEMORY ); + } + + ScaleInternal.gluScaleImage3D( gl, format, width, height, depth, type, + usersImage, newWidth, newHeight, newDepth, type, dstImage ); + + myswapBytes = false; + rowSize = newWidth * groupSize; + imageSize = rowSize * newHeight; + // swap dstImage and srcImage + tempImage = srcImage; + srcImage = dstImage; + dstImage = tempImage; + + if( levels != 0 ) { + int nextWidth = newWidth / 2; + int nextHeight = newHeight / 2; + int nextDepth = newDepth / 2; + if( nextWidth < 1 ) { + nextWidth = 1; + } + if( nextHeight < 1 ) { + nextHeight = 1; + } + if( nextDepth < 1 ) { + nextDepth = 1; + } + memReq = Mipmap.imageSize3D( nextWidth, nextHeight, nextDepth, format, type ); + try { + switch( type ) { + case( GL2.GL_UNSIGNED_BYTE ): + case( GL2.GL_BYTE ): + case( GL2.GL_UNSIGNED_SHORT ): + case( GL2.GL_SHORT ): + case( GL2.GL_UNSIGNED_INT ): + case( GL2.GL_INT ): + case( GL2.GL_FLOAT ): + case( GL2.GL_UNSIGNED_BYTE_3_3_2 ): + case( GL2.GL_UNSIGNED_BYTE_2_3_3_REV ): + case( GL2.GL_UNSIGNED_SHORT_5_6_5 ): + case( GL2.GL_UNSIGNED_SHORT_5_6_5_REV ): + case( GL2.GL_UNSIGNED_SHORT_4_4_4_4 ): + case( GL2.GL_UNSIGNED_SHORT_4_4_4_4_REV ): + case( GL2.GL_UNSIGNED_SHORT_5_5_5_1 ): + case( GL2.GL_UNSIGNED_SHORT_1_5_5_5_REV ): + case( GL2.GL_UNSIGNED_INT_8_8_8_8 ): + case( GL2.GL_UNSIGNED_INT_8_8_8_8_REV ): + case( GL2.GL_UNSIGNED_INT_10_10_10_2 ): + case( GL2.GL_UNSIGNED_INT_2_10_10_10_REV ): + dstImage = ByteBuffer.allocateDirect( memReq ).order( ByteOrder.nativeOrder() ); + break; + default: + return( GLU.GLU_INVALID_ENUM ); + } + } catch( OutOfMemoryError err ) { + gl.glPixelStorei( GL2.GL_UNPACK_ALIGNMENT, psm.getUnpackAlignment() ); + gl.glPixelStorei( GL2.GL_UNPACK_SKIP_ROWS, psm.getUnpackSkipRows() ); + gl.glPixelStorei( GL2.GL_UNPACK_SKIP_PIXELS, psm.getUnpackSkipPixels() ); + gl.glPixelStorei( GL2.GL_UNPACK_ROW_LENGTH, psm.getUnpackRowLength() ); + gl.glPixelStorei( GL2.GL_UNPACK_SWAP_BYTES, psm.getUnpackSwapBytes() ? 1 : 0 ); + gl.glPixelStorei( GL2.GL_UNPACK_SKIP_IMAGES, psm.getUnpackSkipImages() ); + gl.glPixelStorei( GL2.GL_UNPACK_IMAGE_HEIGHT, psm.getUnpackImageHeight() ); + return( GLU.GLU_OUT_OF_MEMORY ); + } + } + // level userLevel is in srcImage; nothing saved yet + level = userLevel; + } + + gl.glPixelStorei( GL2.GL_UNPACK_SWAP_BYTES, GL2.GL_FALSE ); + if( baseLevel <= level && level <= maxLevel ) { + usersImage.reset(); + gl.getGL2().glTexImage3D( target, level, internalFormat, width, height, depth, + 0, format, type, usersImage ); + } + level++; + for( ; level <= levels; level++ ) { + switch( type ) { + case( GL2.GL_UNSIGNED_BYTE ): + if( depth > 1 ) { + HalveImage.halveImage3D( cmpts, new ExtractUByte(), width, height, depth, + usersImage, dstImage, elementSize, groupSize, rowSize, + imageSize, myswapBytes ); + } else { + HalveImage.halveImage_ubyte( cmpts, width, height, usersImage, + dstImage, elementSize, rowSize, groupSize ); + } + break; + case( GL2.GL_BYTE ): + if( depth > 1 ) { + HalveImage.halveImage3D( cmpts, new ExtractSByte(), width, height, depth, + usersImage, dstImage, elementSize, groupSize, rowSize, + imageSize, myswapBytes ); + } else { + HalveImage.halveImage_byte( cmpts, width, height, usersImage, + dstImage, elementSize, rowSize, groupSize ); + } + break; + case( GL2.GL_UNSIGNED_SHORT ): + if( depth > 1 ) { + HalveImage.halveImage3D( cmpts, new ExtractUShort(), width, height, depth, + usersImage, dstImage, elementSize, groupSize, rowSize, + imageSize, myswapBytes ); + } else { + HalveImage.halveImage_ushort( cmpts, width, height, usersImage, + dstImage.asShortBuffer(), elementSize, rowSize, groupSize, myswapBytes ); + } + break; + case( GL2.GL_SHORT ): + if( depth > 1 ) { + HalveImage.halveImage3D( cmpts, new ExtractSShort(), width, height, depth, + usersImage, dstImage, elementSize, groupSize, rowSize, + imageSize, myswapBytes ); + } else { + HalveImage.halveImage_short( cmpts, width, height, usersImage, + dstImage.asShortBuffer(), elementSize, rowSize, groupSize, myswapBytes ); + } + break; + case( GL2.GL_UNSIGNED_INT ): + if( depth > 1 ) { + HalveImage.halveImage3D( cmpts, new ExtractUInt(), width, height, depth, + usersImage, dstImage, elementSize, groupSize, rowSize, + imageSize, myswapBytes ); + } else { + HalveImage.halveImage_uint( cmpts, width, height, usersImage, + dstImage.asIntBuffer(), elementSize, rowSize, groupSize, myswapBytes ); + } + break; + case( GL2.GL_INT ): + if( depth > 1 ) { + HalveImage.halveImage3D( cmpts, new ExtractSInt(), width, height, depth, + usersImage, dstImage, elementSize, groupSize, rowSize, + imageSize, myswapBytes ); + } else { + HalveImage.halveImage_int( cmpts, width, height, usersImage, + dstImage.asIntBuffer(), elementSize, rowSize, groupSize, myswapBytes ); + } + break; + case( GL2.GL_FLOAT ): + if( depth > 1 ) { + HalveImage.halveImage3D( cmpts, new ExtractFloat(), width, height, depth, + usersImage, dstImage, elementSize, groupSize, rowSize, + imageSize, myswapBytes ); + } else { + HalveImage.halveImage_float( cmpts, width, height, usersImage, + dstImage.asFloatBuffer(), elementSize, rowSize, groupSize, myswapBytes ); + } + break; + case( GL2.GL_UNSIGNED_BYTE_3_3_2 ): + HalveImage.halveImagePackedPixel3D( 3, new Extract332(), width, height, depth, usersImage, + dstImage, elementSize, rowSize, imageSize, myswapBytes ); + break; + case( GL2.GL_UNSIGNED_BYTE_2_3_3_REV ): + HalveImage.halveImagePackedPixel3D( 3, new Extract233rev(), width, height, depth, usersImage, + dstImage, elementSize, rowSize, imageSize, myswapBytes ); + break; + case( GL2.GL_UNSIGNED_SHORT_5_6_5 ): + HalveImage.halveImagePackedPixel3D( 3, new Extract565(), width, height, depth, usersImage, + dstImage, elementSize, rowSize, imageSize, myswapBytes ); + break; + case( GL2.GL_UNSIGNED_SHORT_5_6_5_REV ): + HalveImage.halveImagePackedPixel3D( 3, new Extract565rev(), width, height, depth, usersImage, + dstImage, elementSize, rowSize, imageSize, myswapBytes ); + break; + case( GL2.GL_UNSIGNED_SHORT_4_4_4_4 ): + HalveImage.halveImagePackedPixel3D( 4, new Extract4444(), width, height, depth, usersImage, + dstImage, elementSize, rowSize, imageSize, myswapBytes ); + break; + case( GL2.GL_UNSIGNED_SHORT_4_4_4_4_REV ): + HalveImage.halveImagePackedPixel3D( 4, new Extract4444rev(), width, height, depth, usersImage, + dstImage, elementSize, rowSize, imageSize, myswapBytes ); + break; + case( GL2.GL_UNSIGNED_SHORT_5_5_5_1 ): + HalveImage.halveImagePackedPixel3D( 4, new Extract5551(), width, height, depth, usersImage, + dstImage, elementSize, rowSize, imageSize, myswapBytes ); + break; + case( GL2.GL_UNSIGNED_SHORT_1_5_5_5_REV ): + HalveImage.halveImagePackedPixel3D( 4, new Extract1555rev(), width, height, depth, usersImage, + dstImage, elementSize, rowSize, imageSize, myswapBytes ); + break; + case( GL2.GL_UNSIGNED_INT_8_8_8_8 ): + HalveImage.halveImagePackedPixel3D( 4, new Extract8888(), width, height, depth, usersImage, + dstImage, elementSize, rowSize, imageSize, myswapBytes ); + break; + case( GL2.GL_UNSIGNED_INT_8_8_8_8_REV ): + HalveImage.halveImagePackedPixel3D( 4, new Extract8888rev(), width, height, depth, usersImage, + dstImage, elementSize, rowSize, imageSize, myswapBytes ); + break; + case( GL2.GL_UNSIGNED_INT_10_10_10_2 ): + HalveImage.halveImagePackedPixel3D( 4, new Extract1010102(), width, height, depth, usersImage, + dstImage, elementSize, rowSize, imageSize, myswapBytes ); + break; + case( GL2.GL_UNSIGNED_INT_2_10_10_10_REV ): + HalveImage.halveImagePackedPixel3D( 4, new Extract2101010rev(), width, height, depth, usersImage, + dstImage, elementSize, rowSize, imageSize, myswapBytes ); + break; + default: + assert( false ); + break; + } + + tempImage = srcImage; + srcImage = dstImage; + dstImage = tempImage; + + if( newWidth > 1 ) { + newWidth /= 2; + rowSize /= 2; + } + if( newHeight > 1 ) { + newHeight /= 2; + imageSize = rowSize * newHeight; + } + if( newDepth > 1 ) { + newDepth /= 2; + } + if( baseLevel <= level && level <= maxLevel ) { + usersImage.reset(); + gl.getGL2().glTexImage3D( target, level, internalFormat, width, height, depth, + 0, format, type, usersImage ); + } + } + gl.glPixelStorei( GL2.GL_UNPACK_ALIGNMENT, psm.getUnpackAlignment() ); + gl.glPixelStorei( GL2.GL_UNPACK_SKIP_ROWS, psm.getUnpackSkipRows() ); + gl.glPixelStorei( GL2.GL_UNPACK_SKIP_PIXELS, psm.getUnpackSkipPixels() ); + gl.glPixelStorei( GL2.GL_UNPACK_ROW_LENGTH, psm.getUnpackRowLength() ); + gl.glPixelStorei( GL2.GL_UNPACK_SWAP_BYTES, psm.getUnpackSwapBytes() ? 1 : 0 ); + gl.glPixelStorei( GL2.GL_UNPACK_SKIP_IMAGES, psm.getUnpackSkipImages() ); + gl.glPixelStorei( GL2.GL_UNPACK_IMAGE_HEIGHT, psm.getUnpackImageHeight() ); + return( 0 ); + } + + private static final int TARGA_HEADER_SIZE = 18; + private static void writeTargaFile(String filename, ByteBuffer data, + int width, int height) { + try { + FileOutputStream fos = new FileOutputStream(new File(filename)); + ByteBuffer header = ByteBuffer.allocate(TARGA_HEADER_SIZE); + header.put(0, (byte) 0).put(1, (byte) 0); + header.put(2, (byte) 2); // uncompressed type + header.put(12, (byte) (width & 0xFF)); // width + header.put(13, (byte) (width >> 8)); // width + header.put(14, (byte) (height & 0xFF)); // height + header.put(15, (byte) (height >> 8)); // height + header.put(16, (byte) 24); // pixel size + fos.getChannel().write(header); + fos.getChannel().write(data); + data.clear(); + fos.close(); + } catch (IOException e) { + e.printStackTrace(); + } + } +} |