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Diffstat (limited to 'src/net/java/games/jogl/impl/mipmap/Mipmap.java')
-rw-r--r--src/net/java/games/jogl/impl/mipmap/Mipmap.java790
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diff --git a/src/net/java/games/jogl/impl/mipmap/Mipmap.java b/src/net/java/games/jogl/impl/mipmap/Mipmap.java
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+++ b/src/net/java/games/jogl/impl/mipmap/Mipmap.java
@@ -0,0 +1,790 @@
+/*
+ * 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.
+ *
+ * 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 net.java.games.jogl.impl.mipmap;
+
+import net.java.games.jogl.GL;
+import net.java.games.jogl.GLU;
+import java.nio.*;
+
+/**
+ *
+ * @author Administrator
+ */
+public class Mipmap {
+
+ /** Creates a new instance of Mipmap */
+ public Mipmap() {
+ }
+
+ public static int computeLog( int value ) {
+ int i = 0;
+ // Error
+ if( value == 0 ) {
+ return( -1 );
+ }
+ for( ;; ) {
+ if( (value & 1) >= 1 ) {
+ if( value != 1 ) {
+ return( -1 );
+ }
+ return( i );
+ }
+ value = value >> 1;
+ i++;
+ }
+ }
+
+ /* Compute the nearest power of 2 number. This algorithm is a little strange
+ * but it works quite well.
+ */
+ public static int nearestPower( int value ) {
+ int i = 1;
+ // Error!
+ if( value == 0 ) {
+ return( -1 );
+ }
+ for( ;; ) {
+ if( value == 1 ) {
+ return( i );
+ } else if( value == 3 ) {
+ return( i * 4 );
+ }
+ value = value >> 1;
+ i *= 2;
+ }
+ }
+
+ public static short GLU_SWAP_2_BYTES( short s ) {
+ byte b = 0;
+ b = (byte)( s >>> 8 );
+ s = (short)( s << 8 );
+ s = (short)( s | (0x00FF & b) );
+ return( s );
+ }
+
+ public static int GLU_SWAP_4_BYTES( int i ) {
+ int t = i << 24;
+ t |= 0x00FF0000 & ( i << 8 );
+ t |= 0x0000FF00 & ( i >>> 8 );
+ t |= 0x000000FF & ( i >>> 24 );
+ return( t );
+ }
+
+ public static float GLU_SWAP_4_BYTES( float f ) {
+ int i = Float.floatToRawIntBits( f );
+ float temp = Float.intBitsToFloat( i );
+ return( temp );
+ }
+
+ public static int checkMipmapArgs( int internalFormat, int format, int type ) {
+ if( !legalFormat( format ) || !legalType( type ) ) {
+ return( GLU.GLU_INVALID_ENUM );
+ }
+ if( format == GL.GL_STENCIL_INDEX ) {
+ return( GLU.GLU_INVALID_ENUM );
+ }
+ if( !isLegalFormatForPackedPixelType( format, type ) ) {
+ return( GLU.GLU_INVALID_OPERATION );
+ }
+ return( 0 );
+ }
+
+ public static boolean legalFormat( int format ) {
+ switch( format ) {
+ case( GL.GL_COLOR_INDEX ):
+ case( GL.GL_STENCIL_INDEX ):
+ case( GL.GL_DEPTH_COMPONENT ):
+ case( GL.GL_RED ):
+ case( GL.GL_GREEN ):
+ case( GL.GL_BLUE ):
+ case( GL.GL_ALPHA ):
+ case( GL.GL_RGB ):
+ case( GL.GL_RGBA ):
+ case( GL.GL_LUMINANCE ):
+ case( GL.GL_LUMINANCE_ALPHA ):
+ case( GL.GL_BGR ):
+ case( GL.GL_BGRA ):
+ return( true );
+ default:
+ return( false );
+ }
+ }
+
+ public static boolean legalType( int type ) {
+ switch( type ) {
+ case( GL.GL_BITMAP ):
+ case( GL.GL_BYTE ):
+ case( GL.GL_UNSIGNED_BYTE ):
+ case( GL.GL_SHORT ):
+ case( GL.GL_UNSIGNED_SHORT ):
+ case( GL.GL_INT ):
+ case( GL.GL_UNSIGNED_INT ):
+ case( GL.GL_FLOAT ):
+ case( GL.GL_UNSIGNED_BYTE_3_3_2 ):
+ case( GL.GL_UNSIGNED_BYTE_2_3_3_REV ):
+ case( GL.GL_UNSIGNED_SHORT_5_6_5 ):
+ case( GL.GL_UNSIGNED_SHORT_5_6_5_REV ):
+ case( GL.GL_UNSIGNED_SHORT_4_4_4_4 ):
+ case( GL.GL_UNSIGNED_SHORT_4_4_4_4_REV ):
+ case( GL.GL_UNSIGNED_SHORT_5_5_5_1 ):
+ case( GL.GL_UNSIGNED_SHORT_1_5_5_5_REV ):
+ case( GL.GL_UNSIGNED_INT_8_8_8_8 ):
+ case( GL.GL_UNSIGNED_INT_8_8_8_8_REV ):
+ case( GL.GL_UNSIGNED_INT_10_10_10_2 ):
+ case( GL.GL_UNSIGNED_INT_2_10_10_10_REV ):
+ return( true );
+ default:
+ return( false );
+ }
+ }
+
+ public static boolean isTypePackedPixel( int type ) {
+ assert( legalType( type ) );
+
+ if( type == GL.GL_UNSIGNED_BYTE_3_3_2 ||
+ type == GL.GL_UNSIGNED_BYTE_2_3_3_REV ||
+ type == GL.GL_UNSIGNED_SHORT_5_6_5 ||
+ type == GL.GL_UNSIGNED_SHORT_5_6_5_REV ||
+ type == GL.GL_UNSIGNED_SHORT_4_4_4_4 ||
+ type == GL.GL_UNSIGNED_SHORT_4_4_4_4_REV ||
+ type == GL.GL_UNSIGNED_SHORT_5_5_5_1 ||
+ type == GL.GL_UNSIGNED_SHORT_1_5_5_5_REV ||
+ type == GL.GL_UNSIGNED_INT_8_8_8_8 ||
+ type == GL.GL_UNSIGNED_INT_8_8_8_8_REV ||
+ type == GL.GL_UNSIGNED_INT_10_10_10_2 ||
+ type == GL.GL_UNSIGNED_INT_2_10_10_10_REV ) {
+ return( true );
+ }
+ return( false );
+ }
+
+ public static boolean isLegalFormatForPackedPixelType( int format, int type ) {
+ // if not a packed pixel type then return true
+ if( isTypePackedPixel( type ) ) {
+ return( true );
+ }
+
+ // 3_3_2/2_3_3_REV & 5_6_5/5_6_5_REV are only compatible with RGB
+ if( (type == GL.GL_UNSIGNED_BYTE_3_3_2 || type == GL.GL_UNSIGNED_BYTE_2_3_3_REV ||
+ type == GL.GL_UNSIGNED_SHORT_5_6_5 || type == GL.GL_UNSIGNED_SHORT_5_6_5_REV )
+ & format != GL.GL_RGB ) {
+ return( false );
+ }
+
+ // 4_4_4_4/4_4_4_4_REV & 5_5_5_1/1_5_5_5_REV & 8_8_8_8/8_8_8_8_REV &
+ // 10_10_10_2/2_10_10_10_REV are only campatible with RGBA, BGRA & ARGB_EXT
+ if( ( type == GL.GL_UNSIGNED_SHORT_4_4_4_4 ||
+ type == GL.GL_UNSIGNED_SHORT_4_4_4_4_REV ||
+ type == GL.GL_UNSIGNED_SHORT_5_5_5_1 ||
+ type == GL.GL_UNSIGNED_SHORT_1_5_5_5_REV ||
+ type == GL.GL_UNSIGNED_INT_8_8_8_8 ||
+ type == GL.GL_UNSIGNED_INT_8_8_8_8_REV ||
+ type == GL.GL_UNSIGNED_INT_10_10_10_2 ||
+ type == GL.GL_UNSIGNED_INT_2_10_10_10_REV ) &&
+ (format != GL.GL_RGBA && format != GL.GL_BGRA) ) {
+ return( false );
+ }
+ return( true );
+ }
+
+ public static boolean isLegalLevels( int userLevel, int baseLevel, int maxLevel,
+ int totalLevels ) {
+ if( (baseLevel < 0) || (baseLevel < userLevel) || (maxLevel < baseLevel) ||
+ (totalLevels < maxLevel) ) {
+ return( false );
+ }
+ return( true );
+ }
+
+ /* Given user requested textures size, determine if it fits. If it doesn't then
+ * halve both sides and make the determination again until it does fit ( for
+ * IR only ).
+ * Note that proxy textures are not implemented in RE* even though they
+ * advertise the texture extension.
+ * Note that proxy textures are implemented but not according to spec in IMPACT*
+ */
+ public static void closestFit( GL gl, int target, int width, int height, int internalFormat,
+ int format, int type, int[] newWidth, int[] newHeight ) {
+ // Use proxy textures if OpenGL version >= 1.1
+ if( Double.parseDouble( gl.glGetString( GL.GL_VERSION ).trim().substring( 0, 3 ) ) >= 1.1 ) {
+ int widthPowerOf2 = nearestPower( width );
+ int heightPowerOf2 = nearestPower( height );
+ int[] proxyWidth = new int[1];
+ boolean noProxyTextures = false;
+
+ do {
+ // compute level 1 width & height, clamping each at 1
+ int widthAtLevelOne = ( ( width > 1 ) ? (widthPowerOf2 >> 1) : widthPowerOf2 );
+ int heightAtLevelOne = ( ( height > 1 ) ? (heightPowerOf2 >> 1) : heightPowerOf2 );
+ int proxyTarget;
+
+ assert( widthAtLevelOne > 0 );
+ assert( heightAtLevelOne > 0 );
+
+ // does width x height at level 1 & all their mipmaps fit?
+ if( target == GL.GL_TEXTURE_2D || target == GL.GL_PROXY_TEXTURE_2D ) {
+ proxyTarget = GL.GL_PROXY_TEXTURE_2D;
+ gl.glTexImage2D( proxyTarget, 1, internalFormat, widthAtLevelOne,
+ heightAtLevelOne, 0, format, type, (double[])null );
+ } else if( (target == GL.GL_TEXTURE_CUBE_MAP_POSITIVE_X_ARB) ||
+ (target == GL.GL_TEXTURE_CUBE_MAP_NEGATIVE_X_ARB) ||
+ (target == GL.GL_TEXTURE_CUBE_MAP_POSITIVE_Y_ARB) ||
+ (target == GL.GL_TEXTURE_CUBE_MAP_NEGATIVE_Y_ARB) ||
+ (target == GL.GL_TEXTURE_CUBE_MAP_POSITIVE_Z_ARB) ||
+ (target == GL.GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_ARB) ) {
+ proxyTarget = GL.GL_PROXY_TEXTURE_CUBE_MAP_ARB;
+ gl.glTexImage2D( proxyTarget, 1, internalFormat, widthAtLevelOne,
+ heightAtLevelOne, 0, format, type, (double[])null );
+ } else {
+ assert( target == GL.GL_TEXTURE_1D || target == GL.GL_PROXY_TEXTURE_1D );
+ proxyTarget = GL.GL_PROXY_TEXTURE_1D;
+ gl.glTexImage1D( proxyTarget, 1, internalFormat, widthAtLevelOne,
+ 0, format, type, (double[])null );
+ }
+ gl.glGetTexLevelParameteriv( proxyTarget, 1, GL.GL_TEXTURE_WIDTH, proxyWidth );
+ // does it fit?
+ if( proxyWidth[0] == 0 ) { // nope, so try again with theses sizes
+ if( widthPowerOf2 == 1 && heightPowerOf2 == 1 ) {
+ /* A 1x1 texture couldn't fit for some reason so break out. This
+ * should never happen. But things happen. The disadvantage with
+ * this if-statement is that we will never be aware of when this
+ * happens since it will silently branch out.
+ */
+ noProxyTextures = true;
+ break;
+ }
+ widthPowerOf2 = widthAtLevelOne;
+ heightPowerOf2 = heightAtLevelOne;
+ }
+ // else it doese fit
+ } while( proxyWidth[0] == 0 );
+ // loop must terminate
+ // return the width & height at level 0 that fits
+ if( !noProxyTextures ) {
+ newWidth[0] = widthPowerOf2;
+ newHeight[0] = heightPowerOf2;
+ return;
+ }
+ }
+ int[] maxsize = new int[1];
+ gl.glGetIntegerv( GL.GL_MAX_TEXTURE_SIZE, maxsize );
+ // clamp user's texture sizes to maximum sizes, if necessary
+ newWidth[0] = nearestPower( width );
+ if( newWidth[0] > maxsize[0] ) {
+ newWidth[0] = maxsize[0];
+ }
+ newHeight[0] = nearestPower( height );
+ if( newHeight[0] > maxsize[0] ) {
+ newHeight[0] = maxsize[0];
+ }
+ }
+
+ public static void closestFit3D( GL gl, int target, int width, int height, int depth,
+ int internalFormat, int format, int type, int[] newWidth, int[] newHeight,
+ int[] newDepth ) {
+ int widthPowerOf2 = nearestPower( width );
+ int heightPowerOf2 = nearestPower( height );
+ int depthPowerOf2 = nearestPower( depth );
+ int[] proxyWidth = new int[1];
+
+ do {
+ // compute level 1 width & height & depth, clamping each at 1
+ int widthAtLevelOne = (widthPowerOf2 > 1) ? widthPowerOf2 >> 1 : widthPowerOf2;
+ int heightAtLevelOne = (heightPowerOf2 > 1) ? heightPowerOf2 >> 1 : heightPowerOf2;
+ int depthAtLevelOne = (depthPowerOf2 > 1) ? depthPowerOf2 >> 1 : depthPowerOf2;
+ int proxyTarget = 0;
+ assert( widthAtLevelOne > 0 );
+ assert( heightAtLevelOne > 0 );
+ assert( depthAtLevelOne > 0 );
+
+ // does width x height x depth at level 1 & all their mipmaps fit?
+ if( target == GL.GL_TEXTURE_3D || target == GL.GL_PROXY_TEXTURE_3D ) {
+ proxyTarget = GL.GL_PROXY_TEXTURE_3D;
+ gl.glTexImage3D( proxyTarget, 1, internalFormat, widthAtLevelOne,
+ heightAtLevelOne, depthAtLevelOne, 0, format, type, (double[])null );
+ }
+ gl.glGetTexLevelParameteriv( proxyTarget, 1, GL.GL_TEXTURE_WIDTH, proxyWidth );
+ // does it fit
+ if( proxyWidth[0] == 0 ) {
+ if( widthPowerOf2 == 1 && heightPowerOf2 == 1 && depthPowerOf2 == 1 ) {
+ newWidth[0] = newHeight[0] = newDepth[0] = 1;
+ return;
+ }
+ widthPowerOf2 = widthAtLevelOne;
+ heightPowerOf2 = heightAtLevelOne;
+ depthPowerOf2 = depthAtLevelOne;
+ }
+ } while( proxyWidth[0] == 0 );
+ // loop must terminate
+
+ // return the width & height at level 0 that fits
+ newWidth[0] = widthPowerOf2;
+ newHeight[0] = heightPowerOf2;
+ newDepth[0] = depthPowerOf2;
+ }
+
+ public static int elements_per_group( int format, int type ) {
+ // Return the number of elements per grtoup of a specified gromat
+
+ // If the type is packedpixels then answer is 1
+ if( type == GL.GL_UNSIGNED_BYTE_3_3_2 ||
+ type == GL.GL_UNSIGNED_BYTE_2_3_3_REV ||
+ type == GL.GL_UNSIGNED_SHORT_5_6_5 ||
+ type == GL.GL_UNSIGNED_SHORT_5_6_5_REV ||
+ type == GL.GL_UNSIGNED_SHORT_4_4_4_4 ||
+ type == GL.GL_UNSIGNED_SHORT_4_4_4_4_REV ||
+ type == GL.GL_UNSIGNED_SHORT_5_5_5_1 ||
+ type == GL.GL_UNSIGNED_SHORT_1_5_5_5_REV ||
+ type == GL.GL_UNSIGNED_INT_8_8_8_8 ||
+ type == GL.GL_UNSIGNED_INT_8_8_8_8_REV ||
+ type == GL.GL_UNSIGNED_INT_10_10_10_2 ||
+ type == GL.GL_UNSIGNED_INT_2_10_10_10_REV ) {
+ return( 1 );
+ }
+
+ // Types are not packed pixels so get elements per group
+ switch( format ) {
+ case( GL.GL_RGB ):
+ case( GL.GL_BGR ):
+ return( 3 );
+ case( GL.GL_LUMINANCE_ALPHA ):
+ return( 2 );
+ case( GL.GL_RGBA ):
+ case( GL.GL_BGRA ):
+ return( 4 );
+ default:
+ return( 1 );
+ }
+ }
+
+ public static int bytes_per_element( int type ) {
+ // return the number of bytes per element, based on the element type
+
+ switch( type ) {
+ case( GL.GL_BITMAP ):
+ case( GL.GL_BYTE ):
+ case( GL.GL_UNSIGNED_BYTE ):
+ case( GL.GL_UNSIGNED_BYTE_3_3_2 ):
+ case( GL.GL_UNSIGNED_BYTE_2_3_3_REV ):
+ return( 1 );
+ case( GL.GL_SHORT ):
+ case( GL.GL_UNSIGNED_SHORT ):
+ case( GL.GL_UNSIGNED_SHORT_5_6_5 ):
+ case( GL.GL_UNSIGNED_SHORT_5_6_5_REV ):
+ case( GL.GL_UNSIGNED_SHORT_4_4_4_4 ):
+ case( GL.GL_UNSIGNED_SHORT_4_4_4_4_REV ):
+ case( GL.GL_UNSIGNED_SHORT_5_5_5_1 ):
+ case( GL.GL_UNSIGNED_SHORT_1_5_5_5_REV ):
+ return( 2 );
+ case( GL.GL_INT ):
+ case( GL.GL_UNSIGNED_INT ):
+ case( GL.GL_UNSIGNED_INT_8_8_8_8 ):
+ case( GL.GL_UNSIGNED_INT_8_8_8_8_REV ):
+ case( GL.GL_UNSIGNED_INT_10_10_10_2 ):
+ case( GL.GL_UNSIGNED_INT_2_10_10_10_REV ):
+ case( GL.GL_FLOAT ):
+ return( 4 );
+ default:
+ return( 4 );
+ }
+ }
+
+ public static boolean is_index( int format ) {
+ return( format == GL.GL_COLOR_INDEX || format == GL.GL_STENCIL_INDEX );
+ }
+
+ /* Compute memory required for internal packed array of data of given type and format. */
+
+ public static int image_size( int width, int height, int format, int type ) {
+ int bytes_per_row;
+ int components;
+
+ assert( width > 0 );
+ assert( height > 0 );
+ components = elements_per_group( format, type );
+ if( type == GL.GL_BITMAP ) {
+ bytes_per_row = (width + 7) / 8;
+ } else {
+ bytes_per_row = bytes_per_element( type ) * width;
+ }
+ return( bytes_per_row * height * components );
+ }
+
+ public static int imageSize3D( int width, int height, int depth, int format, int type ) {
+ int components = elements_per_group( format, type );
+ int bytes_per_row = bytes_per_element( type ) * width;
+
+ assert( width > 0 && height > 0 && depth > 0 );
+ assert( type != GL.GL_BITMAP );
+
+ return( bytes_per_row * height * depth * components );
+ }
+
+ public static void retrieveStoreModes( GL gl, PixelStorageModes psm ) {
+ int[] a = new int[1];
+ gl.glGetIntegerv( GL.GL_UNPACK_ALIGNMENT, a );
+ psm.setUnpackAlignment( a[0] );
+ gl.glGetIntegerv( GL.GL_UNPACK_ROW_LENGTH, a );
+ psm.setUnpackRowLength( a[0] );
+ gl.glGetIntegerv( GL.GL_UNPACK_SKIP_ROWS, a );
+ psm.setUnpackSkipRows( a[0] );
+ gl.glGetIntegerv( GL.GL_UNPACK_SKIP_PIXELS, a );
+ psm.setUnpackSkipPixels( a[0] );
+ gl.glGetIntegerv( GL.GL_UNPACK_LSB_FIRST, a );
+ psm.setUnpackLsbFirst( ( a[0] == 1 ) );
+ gl.glGetIntegerv( GL.GL_UNPACK_SWAP_BYTES, a );
+ psm.setUnpackSwapBytes( ( a[0] == 1 ) );
+
+ gl.glGetIntegerv( GL.GL_PACK_ALIGNMENT, a );
+ psm.setPackAlignment( a[0] );
+ gl.glGetIntegerv( GL.GL_PACK_ROW_LENGTH, a );
+ psm.setPackRowLength( a[0] );
+ gl.glGetIntegerv( GL.GL_PACK_SKIP_ROWS, a );
+ psm.setPackSkipRows( a[0] );
+ gl.glGetIntegerv( GL.GL_PACK_SKIP_PIXELS, a );
+ psm.setPackSkipPixels( a[0] );
+ gl.glGetIntegerv( GL.GL_PACK_LSB_FIRST, a );
+ psm.setPackLsbFirst( ( a[0] == 1 ) );
+ gl.glGetIntegerv( GL.GL_PACK_SWAP_BYTES, a );
+ psm.setPackSwapBytes( ( a[0] == 1 ) );
+ }
+
+ public static void retrieveStoreModes3D( GL gl, PixelStorageModes psm ) {
+ int[] a = new int[1];
+ gl.glGetIntegerv( GL.GL_UNPACK_ALIGNMENT, a );
+ psm.setUnpackAlignment( a[0] );
+ gl.glGetIntegerv( GL.GL_UNPACK_ROW_LENGTH, a );
+ psm.setUnpackRowLength( a[0] );
+ gl.glGetIntegerv( GL.GL_UNPACK_SKIP_ROWS, a );
+ psm.setUnpackSkipRows( a[0] );
+ gl.glGetIntegerv( GL.GL_UNPACK_SKIP_PIXELS, a );
+ psm.setUnpackSkipPixels( a[0] );
+ gl.glGetIntegerv( GL.GL_UNPACK_LSB_FIRST, a );
+ psm.setUnpackLsbFirst( ( a[0] == 1 ) );
+ gl.glGetIntegerv( GL.GL_UNPACK_SWAP_BYTES, a );
+ psm.setUnpackSwapBytes( ( a[0] == 1 ) );
+ gl.glGetIntegerv( GL.GL_UNPACK_SKIP_IMAGES, a );
+ psm.setUnpackSkipImages( a[0] );
+ gl.glGetIntegerv( GL.GL_UNPACK_IMAGE_HEIGHT, a );
+ psm.setUnpackImageHeight( a[0] );
+
+ gl.glGetIntegerv( GL.GL_PACK_ALIGNMENT, a );
+ psm.setPackAlignment( a[0] );
+ gl.glGetIntegerv( GL.GL_PACK_ROW_LENGTH, a );
+ psm.setPackRowLength( a[0] );
+ gl.glGetIntegerv( GL.GL_PACK_SKIP_ROWS, a );
+ psm.setPackSkipRows( a[0] );
+ gl.glGetIntegerv( GL.GL_PACK_SKIP_PIXELS, a );
+ psm.setPackSkipPixels( a[0] );
+ gl.glGetIntegerv( GL.GL_PACK_LSB_FIRST, a );
+ psm.setPackLsbFirst( ( a[0] == 1 ) );
+ gl.glGetIntegerv( GL.GL_PACK_SWAP_BYTES, a );
+ psm.setPackSwapBytes( ( a[0] == 1 ) );
+ gl.glGetIntegerv( GL.GL_PACK_SKIP_IMAGES, a );
+ psm.setPackSkipImages( a[0] );
+ gl.glGetIntegerv( GL.GL_PACK_IMAGE_HEIGHT, a );
+ psm.setPackImageHeight( a[0] );
+ }
+
+ public static int gluScaleImage( GL gl, int format, int widthin, int heightin,
+ int typein, ByteBuffer datain, int widthout, int heightout,
+ int typeout, ByteBuffer dataout ) {
+ int components;
+ ByteBuffer beforeimage;
+ ByteBuffer afterimage;
+ PixelStorageModes psm = new PixelStorageModes();
+
+ if( (widthin == 0) || (heightin == 0) || (widthout == 0) || (heightout == 0) ) {
+ return( 0 );
+ }
+ if( (widthin < 0) || (heightin < 0) || (widthout < 0) || (heightout < 0) ) {
+ return( GLU.GLU_INVALID_VALUE );
+ }
+ if( !legalFormat( format ) || !legalType( typein ) || !legalType( typeout ) ) {
+ return( GLU.GLU_INVALID_ENUM );
+ }
+ if( !isLegalFormatForPackedPixelType( format, typein ) ) {
+ return( GLU.GLU_INVALID_OPERATION );
+ }
+ if( !isLegalFormatForPackedPixelType( format, typeout ) ) {
+ return( GLU.GLU_INVALID_OPERATION );
+ }
+ beforeimage = ByteBuffer.allocateDirect( image_size( widthin, heightin, format, GL.GL_UNSIGNED_SHORT ) ).order( ByteOrder.nativeOrder() );
+ afterimage = ByteBuffer.allocateDirect( image_size( widthout, heightout, format, GL.GL_UNSIGNED_SHORT ) ).order( ByteOrder.nativeOrder() );
+ if( beforeimage == null || afterimage == null ) {
+ return( GLU.GLU_OUT_OF_MEMORY );
+ }
+
+ retrieveStoreModes( gl, psm );
+ Image.fill_image( psm, widthin, heightin, format, typein, is_index( format ), datain, beforeimage.asShortBuffer() );
+ components = elements_per_group( format, 0 );
+ ScaleInternal.scale_internal( components, widthin, heightin, beforeimage.asShortBuffer(), widthout, heightout, afterimage.asShortBuffer() );
+ Image.empty_image( psm, widthout, heightout, format, typeout, is_index( format ), afterimage.asShortBuffer(), dataout );
+
+ return( 0 );
+ }
+
+ public static int gluBuild1DMipmapLevels( GL gl, int target, int internalFormat,
+ int width, int format, int type, int userLevel, int baseLevel,
+ int maxLevel, ByteBuffer data ) {
+ int levels;
+
+ int rc = checkMipmapArgs( internalFormat, format, type );
+ if( rc != 0 ) {
+ return( rc );
+ }
+
+ if( width < 1 ) {
+ return( GLU.GLU_INVALID_VALUE );
+ }
+
+ levels = computeLog( width );
+
+ levels += userLevel;
+ if( !isLegalLevels( userLevel, baseLevel, maxLevel, levels ) ) {
+ return( GLU.GLU_INVALID_VALUE );
+ }
+
+ return( BuildMipmap.gluBuild1DMipmapLevelsCore( gl, target, internalFormat, width,
+ width, format, type, userLevel, baseLevel, maxLevel, data ) );
+ }
+
+ public static int gluBuild1DMipmaps( GL gl, int target, int internalFormat, int width,
+ int format, int type, ByteBuffer data ) {
+ int[] widthPowerOf2 = new int[1];
+ int levels;
+ int[] dummy = new int[1];
+
+ int rc = checkMipmapArgs( internalFormat, format, type );
+ if( rc != 0 ) {
+ return( rc );
+ }
+
+ if( width < 1 ) {
+ return( GLU.GLU_INVALID_VALUE );
+ }
+
+ closestFit( gl, target, width, 1, internalFormat, format, type, widthPowerOf2, dummy );
+ levels = computeLog( widthPowerOf2[0] );
+
+ return( BuildMipmap.gluBuild1DMipmapLevelsCore( gl, target, internalFormat,
+ width, widthPowerOf2[0], format, type, 0, 0, levels, data ) );
+ }
+
+ public static int gluBuild2DMipmapLevels( GL gl, int target, int internalFormat,
+ int width, int height, int format, int type, int userLevel,
+ int baseLevel, int maxLevel, Object data ) {
+ int level, levels;
+
+ int rc = checkMipmapArgs( internalFormat, format, type );
+ if( rc != 0 ) {
+ return( rc );
+ }
+
+ if( width < 1 || height < 1 ) {
+ return( GLU.GLU_INVALID_VALUE );
+ }
+
+ levels = computeLog( width );
+ level = computeLog( height );
+ if( level > levels ) {
+ levels = level;
+ }
+
+ levels += userLevel;
+ if( !isLegalLevels( userLevel, baseLevel, maxLevel, levels ) ) {
+ return( GLU.GLU_INVALID_VALUE );
+ }
+
+ //PointerWrapper pointer = PointerWrapperFactory.getPointerWrapper( data );
+ ByteBuffer buffer = null;
+ if( data instanceof ByteBuffer ) {
+ buffer = (ByteBuffer)data;
+ } else if( data instanceof byte[] ) {
+ byte[] array = (byte[])data;
+ buffer = ByteBuffer.allocateDirect(array.length);
+ buffer.put(array);
+ } else if( data instanceof short[] ) {
+ short[] array = (short[])data;
+ buffer = ByteBuffer.allocateDirect( array.length * 2 );
+ ShortBuffer sb = buffer.asShortBuffer();
+ sb.put( array );
+ } else if( data instanceof int[] ) {
+ int[] array = (int[])data;
+ buffer = ByteBuffer.allocateDirect( array.length * 4 );
+ IntBuffer ib = buffer.asIntBuffer();
+ ib.put( array );
+ } else if( data instanceof float[] ) {
+ float[] array = (float[])data;
+ buffer = ByteBuffer.allocateDirect( array.length * 4 );
+ FloatBuffer fb = buffer.asFloatBuffer();
+ fb.put( array );
+ }
+
+ return( BuildMipmap.gluBuild2DMipmapLevelsCore( gl, target, internalFormat,
+ width, height, width, height, format, type, userLevel, baseLevel,
+ maxLevel, buffer ) );
+ }
+
+ public static int gluBuild2DMipmaps( GL gl, int target, int internalFormat,
+ int width, int height, int format, int type, Object data ) {
+ int[] widthPowerOf2 = new int[1];
+ int[] heightPowerOf2 = new int[1];
+ int level, levels;
+
+ int rc = checkMipmapArgs( internalFormat, format, type );
+ if( rc != 0 ) {
+ return( rc );
+ }
+
+ if( width < 1 || height < 1 ) {
+ return( GLU.GLU_INVALID_VALUE );
+ }
+
+ closestFit( gl, target, width, height, internalFormat, format, type,
+ widthPowerOf2, heightPowerOf2 );
+
+ levels = computeLog( widthPowerOf2[0] );
+ level = computeLog( heightPowerOf2[0] );
+ if( level > levels ) {
+ levels = level;
+ }
+
+ //PointerWrapper pointer = PointerWrapperFactory.getPointerWrapper( data );
+ ByteBuffer buffer = null;
+ if( data instanceof ByteBuffer ) {
+ buffer = (ByteBuffer)data;
+ } else if( data instanceof byte[] ) {
+ byte[] array = (byte[])data;
+ buffer = ByteBuffer.allocateDirect(array.length);
+ buffer.put(array);
+ } else if( data instanceof short[] ) {
+ short[] array = (short[])data;
+ buffer = ByteBuffer.allocateDirect( array.length * 2 );
+ ShortBuffer sb = buffer.asShortBuffer();
+ sb.put( array );
+ } else if( data instanceof int[] ) {
+ int[] array = (int[])data;
+ buffer = ByteBuffer.allocateDirect( array.length * 4 );
+ IntBuffer ib = buffer.asIntBuffer();
+ ib.put( array );
+ } else if( data instanceof float[] ) {
+ float[] array = (float[])data;
+ buffer = ByteBuffer.allocateDirect( array.length * 4 );
+ FloatBuffer fb = buffer.asFloatBuffer();
+ fb.put( array );
+ }
+
+ return( BuildMipmap.gluBuild2DMipmapLevelsCore( gl, target, internalFormat,
+ width, height, widthPowerOf2[0], heightPowerOf2[0], format, type, 0,
+ 0, levels, buffer ) );
+ }
+
+ public static int gluBuild3DMipmaps( GL gl, int target, int internalFormat,
+ int width, int height, int depth, int format, int type, ByteBuffer data ) {
+ int[] widthPowerOf2 = new int[1];
+ int[] heightPowerOf2 = new int[1];
+ int[] depthPowerOf2 = new int[1];
+ int level, levels;
+
+ int rc = checkMipmapArgs( internalFormat, format, type );
+ if( rc != 0 ) {
+ return( rc );
+ }
+
+ if( width < 1 || height < 1 || depth < 1 ) {
+ return( GLU.GLU_INVALID_VALUE );
+ }
+
+ if( type == GL.GL_BITMAP ) {
+ return( GLU.GLU_INVALID_ENUM );
+ }
+
+ closestFit3D( gl, target, width, height, depth, internalFormat, format,
+ type, widthPowerOf2, heightPowerOf2, depthPowerOf2 );
+
+ levels = computeLog( widthPowerOf2[0] );
+ level = computeLog( heightPowerOf2[0] );
+ if( level > levels ) {
+ levels = level;
+ }
+ level = computeLog( depthPowerOf2[0] );
+ if( level > levels ) {
+ levels = level;
+ }
+
+ return( BuildMipmap.gluBuild3DMipmapLevelsCore( gl, target, internalFormat, width,
+ height, depth, widthPowerOf2[0], heightPowerOf2[0], depthPowerOf2[0],
+ format, type, 0, 0, levels, data ) );
+ }
+
+ public static int gluBuild3DMipmapLevels( GL gl, int target, int internalFormat,
+ int width, int height, int depth, int format, int type, int userLevel,
+ int baseLevel, int maxLevel, ByteBuffer data ) {
+ int level, levels;
+
+ int rc = checkMipmapArgs( internalFormat, format, type );
+ if( rc != 0 ) {
+ return( rc );
+ }
+
+ if( width < 1 || height < 1 || depth < 1 ) {
+ return( GLU.GLU_INVALID_VALUE );
+ }
+
+ if( type == GL.GL_BITMAP ) {
+ return( GLU.GLU_INVALID_ENUM );
+ }
+
+ levels = computeLog( width );
+ level = computeLog( height );
+ if( level > levels ) {
+ levels = level;
+ }
+ level = computeLog( depth );
+ if( level > levels ) {
+ levels = level;
+ }
+
+ levels += userLevel;
+ if( !isLegalLevels( userLevel, baseLevel, maxLevel, levels ) ) {
+ return( GLU.GLU_INVALID_VALUE );
+ }
+
+ return( BuildMipmap.gluBuild3DMipmapLevelsCore( gl, target, internalFormat, width,
+ height, depth, width, height, depth, format, type, userLevel,
+ baseLevel, maxLevel, data ) );
+ }
+}
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-02 03:05:07 +0000