Copy the KDE 3.5 branch to branches/trinity for new KDE 3.5 features.

BUG:215923


git-svn-id: svn://anonsvn.kde.org/home/kde/branches/trinity/kdegraphics@1054174 283d02a7-25f6-0310-bc7c-ecb5cbfe19da

1 files changed, 209 insertions, 0 deletions

diff --git a/kviewshell/plugins/djvu/libdjvu/MMX.cpp b/kviewshell/plugins/djvu/libdjvu/MMX.cpp
new file mode 100644
index 00000000..58b74177
--- /dev/null
+++ b/kviewshell/plugins/djvu/libdjvu/MMX.cpp
@@ -0,0 +1,209 @@
+//C-  -*- C++ -*-
+//C- -------------------------------------------------------------------
+//C- DjVuLibre-3.5
+//C- Copyright (c) 2002  Leon Bottou and Yann Le Cun.
+//C- Copyright (c) 2001  AT&T
+//C-
+//C- This software is subject to, and may be distributed under, the
+//C- GNU General Public License, Version 2. The license should have
+//C- accompanied the software or you may obtain a copy of the license
+//C- from the Free Software Foundation at http://www.fsf.org .
+//C-
+//C- This program is distributed in the hope that it will be useful,
+//C- but WITHOUT ANY WARRANTY; without even the implied warranty of
+//C- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+//C- GNU General Public License for more details.
+//C- 
+//C- DjVuLibre-3.5 is derived from the DjVu(r) Reference Library
+//C- distributed by Lizardtech Software.  On July 19th 2002, Lizardtech 
+//C- Software authorized us to replace the original DjVu(r) Reference 
+//C- Library notice by the following text (see doc/lizard2002.djvu):
+//C-
+//C-  ------------------------------------------------------------------
+//C- | DjVu (r) Reference Library (v. 3.5)
+//C- | Copyright (c) 1999-2001 LizardTech, Inc. All Rights Reserved.
+//C- | The DjVu Reference Library is protected by U.S. Pat. No.
+//C- | 6,058,214 and patents pending.
+//C- |
+//C- | This software is subject to, and may be distributed under, the
+//C- | GNU General Public License, Version 2. The license should have
+//C- | accompanied the software or you may obtain a copy of the license
+//C- | from the Free Software Foundation at http://www.fsf.org .
+//C- |
+//C- | The computer code originally released by LizardTech under this
+//C- | license and unmodified by other parties is deemed "the LIZARDTECH
+//C- | ORIGINAL CODE."  Subject to any third party intellectual property
+//C- | claims, LizardTech grants recipient a worldwide, royalty-free, 
+//C- | non-exclusive license to make, use, sell, or otherwise dispose of 
+//C- | the LIZARDTECH ORIGINAL CODE or of programs derived from the 
+//C- | LIZARDTECH ORIGINAL CODE in compliance with the terms of the GNU 
+//C- | General Public License.   This grant only confers the right to 
+//C- | infringe patent claims underlying the LIZARDTECH ORIGINAL CODE to 
+//C- | the extent such infringement is reasonably necessary to enable 
+//C- | recipient to make, have made, practice, sell, or otherwise dispose 
+//C- | of the LIZARDTECH ORIGINAL CODE (or portions thereof) and not to 
+//C- | any greater extent that may be necessary to utilize further 
+//C- | modifications or combinations.
+//C- |
+//C- | The LIZARDTECH ORIGINAL CODE is provided "AS IS" WITHOUT WARRANTY
+//C- | OF ANY KIND, EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED
+//C- | TO ANY WARRANTY OF NON-INFRINGEMENT, OR ANY IMPLIED WARRANTY OF
+//C- | MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE.
+//C- +------------------------------------------------------------------
+// 
+// $Id: MMX.cpp,v 1.10 2004/05/13 16:50:10 leonb Exp $
+// $Name: release_3_5_15 $
+
+#ifdef HAVE_CONFIG_H
+# include "config.h"
+#endif
+#if NEED_GNUG_PRAGMAS
+# pragma implementation
+#endif
+
+#include "MMX.h"
+#include <stdio.h>
+#include <stdlib.h>
+
+
+#ifdef HAVE_NAMESPACES
+namespace DJVU {
+# ifdef NOT_DEFINED // Just to fool emacs c++ mode
+}
+#endif
+#endif
+
+
+// ----------------------------------------
+// PRINTING MMX REGISTERS (Debug)
+
+
+#if defined(MMX) && defined(DEBUG)
+extern "C" void
+mmx_show()
+{
+  /* This function can be called from a debugger
+     in order to visualize the contents of the MMX registers. */
+  int mmregs[16];
+  MMXra( movq,  mm0, &mmregs[0]);
+  MMXra( movq,  mm1, &mmregs[2]);
+  MMXra( movq,  mm2, &mmregs[4]);
+  MMXra( movq,  mm3, &mmregs[6]);
+  MMXra( movq,  mm4, &mmregs[8]);
+  MMXra( movq,  mm5, &mmregs[10]);
+  MMXra( movq,  mm6, &mmregs[12]);
+  MMXra( movq,  mm7, &mmregs[14]);
+  MMXemms;
+  for (int i=0; i<8; i++)
+    DjVuPrintMessageUTF8("mm%d: %08x%08x\n", i, 
+           mmregs[i+i+1], mmregs[i+i]);
+  MMXar( movq,  &mmregs[0], mm0);
+  MMXar( movq,  &mmregs[2], mm1);
+  MMXar( movq,  &mmregs[4], mm2);
+  MMXar( movq,  &mmregs[6], mm3);
+  MMXar( movq,  &mmregs[8], mm4);
+  MMXar( movq,  &mmregs[10], mm5);
+  MMXar( movq,  &mmregs[12], mm6);
+  MMXar( movq,  &mmregs[14], mm7);
+}
+#endif
+
+
+
+// ----------------------------------------
+// MMX ENABLE/DISABLE
+
+// Default settings autodetect MMX.
+// Use macro DISABLE_MMX to disable MMX by default.
+
+#if defined(MMX) && !defined(DISABLE_MMX)
+int MMXControl::mmxflag = -1;
+#else
+int MMXControl::mmxflag = 0;
+#endif
+
+int 
+MMXControl::disable_mmx()
+{
+  mmxflag = 0;
+  return mmxflag;
+}
+
+int 
+MMXControl::enable_mmx()
+{
+  int cpuflags = 0;
+#if defined(MMX) && defined(__GNUC__) && defined(__i386__)
+  // Detection of MMX for GCC
+  __asm__ volatile ("pushl %%ebx\n\t"
+                    "pushfl\n\t"    
+                    "popl %%ecx\n\t"
+                    "xorl %%edx,%%edx\n\t"
+                    // Check that CPUID exists
+                    "movl %%ecx,%%eax\n\t"
+                    "xorl $0x200000,%%eax\n\t"
+                    "pushl %%eax\n\t"
+                    "popfl\n\t"
+                    "pushfl\n\t"
+                    "popl %%eax\n\t"
+                    "xorl %%ecx,%%eax\n\t"
+                    "jz 1f\n\t"
+                    "pushl %%ecx\n\t"
+                    "popfl\n\t"
+                    // Check that CR0:EM is clear
+                    "smsw %%ax\n\t"
+                    "andl $4,%%eax\n\t"
+                    "jnz 1f\n\t"
+                    // Execute CPUID
+                    "movl $1,%%eax\n\t"
+                    "cpuid\n"
+                    // EBX contains magic when -fPIC is on.
+		    "1:\tpopl %%ebx\n\t"
+                    "movl %%edx, %0"
+                    : "=m" (cpuflags) :
+                    : "eax","ecx","edx");
+#endif
+#if defined(MMX) && defined(_MSC_VER) && defined(_M_IX86)
+  // Detection of MMX for MSVC
+  __asm {  pushfd
+           pop     ecx
+           xor     edx,edx
+             ;// Check that CPUID exists
+           mov     eax,ecx        
+           xor     eax,0x200000
+           push    eax
+           popfd
+           pushfd
+           pop     eax
+           xor     eax,ecx
+           jz      fini
+           push    ecx
+           popfd
+             ;// Check that CR0:EM is zero
+           smsw    ax
+           and     eax,4
+           jnz     fini
+             ;// Execute CPUID
+           mov     eax,1
+           _emit   0xf
+           _emit   0xa2
+         fini:
+           mov     cpuflags,edx
+             ;// MSVC determines clobbered registers by scanning the assembly code.
+             ;// Since it does not know CPUID, it would not know that EBX is clobbered
+             ;// without the dummy instruction below...
+           xor     ebx,ebx
+         }
+#endif
+  mmxflag = !!(cpuflags & 0x800000);
+  return mmxflag;
+}
+
+
+
+#ifdef HAVE_NAMESPACES
+}
+# ifndef NOT_USING_DJVU_NAMESPACE
+using namespace DJVU;
+# endif
+#endif