4 5 */ faddp %st, %st(3) /* 0 3 4 5 */ faddp %st, %st(1) /* 3 4 5 */ /* * st(2) = S(0) * M(0, 0) + S(1) * M(0, 1) + S(2) * M(0, 2) * st(1) = S(0) * M(1, 0) + S(1) * M(1, 1) + S(2) * M(1, 2) * st(0) = S(0) * M(2, 0) + S(1) * M(2, 1) + S(2) * M(2, 2) */ fld %st(3) fmul %st, %st(1) fmul %st, %st(2) fmulp %st(3) fstps D(2) fstps D(1) fstps D(0) leal S(3), %esi decl %ecx leal D(3), %edi jnz 1b fstp %st(0) jmp 4f /* * Transform (no rescale) */ ALIGN 3: flds S(0) fmuls M(0, 0) flds S(0) fmuls M(1, 0) flds S(0) fmuls M(2, 0) flds S(1) fmuls M(0, 1) flds S(1) fmuls M(1, 1) flds S(1) fmuls M(2, 1) /* * st(5) = S(0) * M(0, 0) * st(4) = S(0) * M(1, 0) * st(3) = S(0) * M(2, 0) * st(2) = S(1) * M(0, 1) * st(1) = S(1) * M(1, 1) * st(0) = S(1) * M(2, 1) */ fxch %st(2) /* 2 1 0 3 4 5 */ faddp %st, %st(5) /* 1 0 3 4 5 */ faddp %st, %st(3) /* 0 3 4 5 */ faddp %st, %st(1) /* 3 4 5 */ /* * st(2) = S(0) * M(0, 0) + S(1) * M(0, 1) * st(1) = S(0) * M(1, 0) + S(1) * M(1, 1) * st(0) = S(0) * M(2, 0) + S(1) * M(2, 1) */ flds S(2) fmuls M(0, 2) flds S(2) fmuls M(1, 2) flds S(2) fmuls M(2, 2) /* * st(5) = S(0) * M(0, 0) + S(1) * M(0, 1) * st(4) = S(0) * M(1, 0) + S(1) * M(1, 1) * st(3) = S(0) * M(2, 0) + S(1) * M(2, 1) * st(2) = S(2) * M(0, 2) * st(1) = S(2) * M(1, 2) * st(0) = S(2) * M(2, 2) */ fxch %st(2) /* 2 1 0 3 4 5 */ faddp %st, %st(5) /* 1 0 3 4 5 */ faddp %st, %st(3) /* 0 3 4 5 */ faddp %st, %st(1) /* 3 4 5 */ /* * st(2) = S(0) * M(0, 0) + S(1) * M(0, 1) + S(2) * M(0, 2) * st(1) = S(0) * M(1, 0) + S(1) * M(1, 1) + S(2) * M(1, 2) * st(0) = S(0) * M(2, 0) + S(1) * M(2, 1) + S(2) * M(2, 2) */ fxch %st(2) /* 2 1 0 */ fstps D(0) /* 1 0 */ fstps D(1) /* 0 */ fstps D(2) /* */ leal S(3), %esi decl %ecx leal D(3), %edi jnz 3b /* * Skip normalize if it isn't needed */ 4: cmpl $0, 28(%esp) jz 2f /* Normalize required */ movl 12(%esp), %esi /* esi = n */ movl 16(%esp), %edi /* edi = d */ subl $4, %esp /* temp var for 1.0 / len */ /* * (%esp) = length of first normal */ flds D(0) fmuls D(0) flds D(1) fmuls D(1) flds D(2) fmuls D(2) fxch %st(2) faddp %st(1) faddp %st(1) fsqrt fstps (%esp) jmp 3f ALIGN 1: /* %st(0) = length of next normal */ flds D(3) fmuls D(3) flds D(4) fmuls D(4) flds D(5) fmuls D(5) fxch %st(2) faddp %st(1) faddp %st(1) fsqrt /* * inverse the length of the current normal, which is * already at (%esp). This should overlap the prev * fsqrt nicely. */ call inverse_nofp movl %eax, (%esp) /* multiply normal by 1/len */ flds D(0) fmuls (%esp) flds D(1) fmuls (%esp) flds D(2) fmuls (%esp) fxch %st(3) fstps (%esp) /* store length of next normal */ fstps D(1) fstps D(0) fstps D(2) leal D(3), %edi 3: decl %esi jnz 1b /* finish up the last normal */ call inverse_nofp movl %eax, (%esp) flds D(0) fmuls (%esp) flds D(1) fmuls (%esp) flds D(2) fmuls (%esp) fxch %st(2) fstps D(0) fstps D(1) fstps D(2) addl $4, %esp 2: popl %edi popl %esi ret /* end */ /* $Id: copypix.c,v 3.9 1998/09/25 03:03:01 brianp Exp $ */ /* * Mesa 3-D graphics library * Version: 3.0 * Copyright (C) 1995-1998 Brian Paul * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Library General Public * License as published by the Free Software Foundation; either * version 2 of the License, or (at your option) any later version. * * This library is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Library General Public License for more details. * * You should have received a copy of the GNU Library General Public * License along with this library; if not, write to the Free * Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */ /* * $Log: copypix.c,v $ * Revision 3.9 1998/09/25 03:03:01 brianp * fixed front/back alpha copy bug per Sam Jordan * * Revision 3.8 1998/07/17 03:24:16 brianp * added Pixel.ScaleOrBiasRGBA field * * Revision 3.7 1998/05/31 23:50:36 brianp * cleaned up a few Solaris compiler warnings * * Revision 3.6 1998/04/01 02:58:52 brianp * applied Miklos Fazekas's 3-31-98 Macintosh changes * * Revision 3.5 1998/03/27 03:30:36 brianp * fixed G++ warnings * * Revision 3.4 1998/02/15 01:31:41 brianp * removed unused variables * * Revision 3.3 1998/02/08 20:22:14 brianp * LOTS of clean-up and rewriting * * Revision 3.2 1998/02/04 00:33:45 brianp * fixed a few cast problems for Amiga StormC compiler * * Revision 3.1 1998/02/01 22:16:34 brianp * include different headers (zooming) * * Revision 3.0 1998/01/31 20:49:24 brianp * initial rev * */ #ifdef PC_HEADER #include "all.h" #else #include #include "context.h" #include "copypix.h" #include "depth.h" #include "feedback.h" #include "macros.h" #include "pixel.h" #include "span.h" #include "stencil.h" #include "types.h" #include "zoom.h" #endif static vosktop+2
desktop-1
desktop-2
desktop%2
These commands switch between desktops. desktop%2 toggles between an odd desktop and the next higher even number. That means between 1 and 2 or between 3 and 4. This is useful to emulate "Up" and "Down" in a virtual n*2 matrix, which is used by the KDE pager. Similarly, desktop+2 means "Right"; desktop-1 means "Left".

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  • Alt-middle mouse button raises the window
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