bitblt.c 88.3 KB
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/*
 * GDI bit-blit operations
 *
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 * Copyright 1993, 1994, 2011 Alexandre Julliard
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 * Copyright 2006 Damjan Jovanovic
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 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2.1 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
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to the Free Software
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 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
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 */

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#include "config.h"

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#include <assert.h>
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#include <stdarg.h>
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#include <stdio.h>
#include <stdlib.h>
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#include <X11/Xlib.h>
#include <X11/Xresource.h>
#include <X11/Xutil.h>
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#ifdef HAVE_X11_EXTENSIONS_SHAPE_H
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#include <X11/extensions/shape.h>
#endif
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#ifdef HAVE_X11_EXTENSIONS_XSHM_H
# include <X11/extensions/XShm.h>
# ifdef HAVE_SYS_SHM_H
#  include <sys/shm.h>
# endif
# ifdef HAVE_SYS_IPC_H
#  include <sys/ipc.h>
# endif
#endif
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#include "windef.h"
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#include "winbase.h"
#include "wingdi.h"
#include "winuser.h"
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#include "x11drv.h"
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#include "winternl.h"
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#include "wine/debug.h"
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WINE_DEFAULT_DEBUG_CHANNEL(bitblt);
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#define DST 0   /* Destination drawable */
#define SRC 1   /* Source drawable */
#define TMP 2   /* Temporary drawable */
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#define PAT 3   /* Pattern (brush) in destination DC */

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#define OP(src,dst,rop)   (OP_ARGS(src,dst) << 4 | (rop))
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#define OP_ARGS(src,dst)  (((src) << 2) | (dst))

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#define OP_SRC(opcode)    ((opcode) >> 6)
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#define OP_DST(opcode)    (((opcode) >> 4) & 3)
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#define OP_SRCDST(opcode) ((opcode) >> 4)
#define OP_ROP(opcode)    ((opcode) & 0x0f)
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#define MAX_OP_LEN  6  /* Longest opcode + 1 for the terminating 0 */
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static const unsigned char BITBLT_Opcodes[256][MAX_OP_LEN] =
{
    { OP(PAT,DST,GXclear) },                         /* 0x00  0              */
    { OP(PAT,SRC,GXor), OP(SRC,DST,GXnor) },         /* 0x01  ~(D|(P|S))     */
    { OP(PAT,SRC,GXnor), OP(SRC,DST,GXand) },        /* 0x02  D&~(P|S)       */
    { OP(PAT,SRC,GXnor) },                           /* 0x03  ~(P|S)         */
    { OP(PAT,DST,GXnor), OP(SRC,DST,GXand) },        /* 0x04  S&~(D|P)       */
    { OP(PAT,DST,GXnor) },                           /* 0x05  ~(D|P)         */
    { OP(SRC,DST,GXequiv), OP(PAT,DST,GXnor), },     /* 0x06  ~(P|~(D^S))    */
    { OP(SRC,DST,GXand), OP(PAT,DST,GXnor) },        /* 0x07  ~(P|(D&S))     */
    { OP(PAT,DST,GXandInverted), OP(SRC,DST,GXand) },/* 0x08  S&D&~P         */
    { OP(SRC,DST,GXxor), OP(PAT,DST,GXnor) },        /* 0x09  ~(P|(D^S))     */
    { OP(PAT,DST,GXandInverted) },                   /* 0x0a  D&~P           */
    { OP(SRC,DST,GXandReverse), OP(PAT,DST,GXnor) }, /* 0x0b  ~(P|(S&~D))    */
    { OP(PAT,SRC,GXandInverted) },                   /* 0x0c  S&~P           */
    { OP(SRC,DST,GXandInverted), OP(PAT,DST,GXnor) },/* 0x0d  ~(P|(D&~S))    */
    { OP(SRC,DST,GXnor), OP(PAT,DST,GXnor) },        /* 0x0e  ~(P|~(D|S))    */
    { OP(PAT,DST,GXcopyInverted) },                  /* 0x0f  ~P             */
    { OP(SRC,DST,GXnor), OP(PAT,DST,GXand) },        /* 0x10  P&~(S|D)       */
    { OP(SRC,DST,GXnor) },                           /* 0x11  ~(D|S)         */
    { OP(PAT,DST,GXequiv), OP(SRC,DST,GXnor) },      /* 0x12  ~(S|~(D^P))    */
    { OP(PAT,DST,GXand), OP(SRC,DST,GXnor) },        /* 0x13  ~(S|(D&P))     */
    { OP(PAT,SRC,GXequiv), OP(SRC,DST,GXnor) },      /* 0x14  ~(D|~(P^S))    */
    { OP(PAT,SRC,GXand), OP(SRC,DST,GXnor) },        /* 0x15  ~(D|(P&S))     */
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    { OP(SRC,TMP,GXcopy), OP(PAT,SRC,GXnand),
      OP(SRC,DST,GXand), OP(TMP,DST,GXxor),
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      OP(PAT,DST,GXxor) },                           /* 0x16  P^S^(D&~(P&S)  */
    { OP(SRC,TMP,GXcopy), OP(SRC,DST,GXxor),
      OP(PAT,SRC,GXxor), OP(SRC,DST,GXand),
      OP(TMP,DST,GXequiv) },                         /* 0x17 ~S^((S^P)&(S^D))*/
    { OP(PAT,SRC,GXxor), OP(PAT,DST,GXxor),
        OP(SRC,DST,GXand) },                         /* 0x18  (S^P)&(D^P)    */
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    { OP(SRC,TMP,GXcopy), OP(PAT,SRC,GXnand),
      OP(SRC,DST,GXand), OP(TMP,DST,GXequiv) },      /* 0x19  ~S^(D&~(P&S))  */
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    { OP(PAT,SRC,GXand), OP(SRC,DST,GXor),
      OP(PAT,DST,GXxor) },                           /* 0x1a  P^(D|(S&P))    */
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    { OP(SRC,TMP,GXcopy), OP(PAT,SRC,GXxor),
      OP(SRC,DST,GXand), OP(TMP,DST,GXequiv) },      /* 0x1b  ~S^(D&(P^S))   */
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    { OP(PAT,DST,GXand), OP(SRC,DST,GXor),
      OP(PAT,DST,GXxor) },                           /* 0x1c  P^(S|(D&P))    */
    { OP(DST,TMP,GXcopy), OP(PAT,DST,GXxor),
      OP(SRC,DST,GXand), OP(TMP,DST,GXequiv) },      /* 0x1d  ~D^(S&(D^P))   */
    { OP(SRC,DST,GXor), OP(PAT,DST,GXxor) },         /* 0x1e  P^(D|S)        */
    { OP(SRC,DST,GXor), OP(PAT,DST,GXnand) },        /* 0x1f  ~(P&(D|S))     */
    { OP(PAT,SRC,GXandReverse), OP(SRC,DST,GXand) }, /* 0x20  D&(P&~S)       */
    { OP(PAT,DST,GXxor), OP(SRC,DST,GXnor) },        /* 0x21  ~(S|(D^P))     */
    { OP(SRC,DST,GXandInverted) },                   /* 0x22  ~S&D           */
    { OP(PAT,DST,GXandReverse), OP(SRC,DST,GXnor) }, /* 0x23  ~(S|(P&~D))    */
    { OP(SRC,DST,GXxor), OP(PAT,SRC,GXxor),
      OP(SRC,DST,GXand) },                           /* 0x24   (S^P)&(S^D)   */
    { OP(PAT,SRC,GXnand), OP(SRC,DST,GXand),
      OP(PAT,DST,GXequiv) },                         /* 0x25  ~P^(D&~(S&P))  */
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    { OP(SRC,TMP,GXcopy), OP(PAT,SRC,GXand),
      OP(SRC,DST,GXor), OP(TMP,DST,GXxor) },         /* 0x26  S^(D|(S&P))    */
    { OP(SRC,TMP,GXcopy), OP(PAT,SRC,GXequiv),
      OP(SRC,DST,GXor), OP(TMP,DST,GXxor) },         /* 0x27  S^(D|~(P^S))   */
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    { OP(PAT,SRC,GXxor), OP(SRC,DST,GXand) },        /* 0x28  D&(P^S)        */
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    { OP(SRC,TMP,GXcopy), OP(PAT,SRC,GXand),
      OP(SRC,DST,GXor), OP(TMP,DST,GXxor),
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      OP(PAT,DST,GXequiv) },                         /* 0x29  ~P^S^(D|(P&S)) */
    { OP(PAT,SRC,GXnand), OP(SRC,DST,GXand) },       /* 0x2a  D&~(P&S)       */
    { OP(SRC,TMP,GXcopy), OP(PAT,SRC,GXxor),
      OP(PAT,DST,GXxor), OP(SRC,DST,GXand),
      OP(TMP,DST,GXequiv) },                         /* 0x2b ~S^((P^S)&(P^D))*/
    { OP(SRC,DST,GXor), OP(PAT,DST,GXand),
      OP(SRC,DST,GXxor) },                           /* 0x2c  S^(P&(S|D))    */
    { OP(SRC,DST,GXorReverse), OP(PAT,DST,GXxor) },  /* 0x2d  P^(S|~D)       */
    { OP(PAT,DST,GXxor), OP(SRC,DST,GXor),
      OP(PAT,DST,GXxor) },                           /* 0x2e  P^(S|(D^P))    */
    { OP(SRC,DST,GXorReverse), OP(PAT,DST,GXnand) }, /* 0x2f  ~(P&(S|~D))    */
    { OP(PAT,SRC,GXandReverse) },                    /* 0x30  P&~S           */
    { OP(PAT,DST,GXandInverted), OP(SRC,DST,GXnor) },/* 0x31  ~(S|(D&~P))    */
    { OP(SRC,DST,GXor), OP(PAT,DST,GXor),
      OP(SRC,DST,GXxor) },                           /* 0x32  S^(D|P|S)      */
    { OP(SRC,DST,GXcopyInverted) },                  /* 0x33  ~S             */
    { OP(SRC,DST,GXand), OP(PAT,DST,GXor),
      OP(SRC,DST,GXxor) },                           /* 0x34  S^(P|(D&S))    */
    { OP(SRC,DST,GXequiv), OP(PAT,DST,GXor),
      OP(SRC,DST,GXxor) },                           /* 0x35  S^(P|~(D^S))   */
    { OP(PAT,DST,GXor), OP(SRC,DST,GXxor) },         /* 0x36  S^(D|P)        */
    { OP(PAT,DST,GXor), OP(SRC,DST,GXnand) },        /* 0x37  ~(S&(D|P))     */
    { OP(PAT,DST,GXor), OP(SRC,DST,GXand),
      OP(PAT,DST,GXxor) },                           /* 0x38  P^(S&(D|P))    */
    { OP(PAT,DST,GXorReverse), OP(SRC,DST,GXxor) },  /* 0x39  S^(P|~D)       */
    { OP(SRC,DST,GXxor), OP(PAT,DST,GXor),
      OP(SRC,DST,GXxor) },                           /* 0x3a  S^(P|(D^S))    */
    { OP(PAT,DST,GXorReverse), OP(SRC,DST,GXnand) }, /* 0x3b  ~(S&(P|~D))    */
    { OP(PAT,SRC,GXxor) },                           /* 0x3c  P^S            */
    { OP(SRC,DST,GXnor), OP(PAT,DST,GXor),
      OP(SRC,DST,GXxor) },                           /* 0x3d  S^(P|~(D|S))   */
    { OP(SRC,DST,GXandInverted), OP(PAT,DST,GXor),
      OP(SRC,DST,GXxor) },                           /* 0x3e  S^(P|(D&~S))   */
    { OP(PAT,SRC,GXnand) },                          /* 0x3f  ~(P&S)         */
    { OP(SRC,DST,GXandReverse), OP(PAT,DST,GXand) }, /* 0x40  P&S&~D         */
    { OP(PAT,SRC,GXxor), OP(SRC,DST,GXnor) },        /* 0x41  ~(D|(P^S))     */
    { OP(DST,SRC,GXxor), OP(PAT,DST,GXxor),
      OP(SRC,DST,GXand) },                           /* 0x42  (S^D)&(P^D)    */
    { OP(SRC,DST,GXnand), OP(PAT,DST,GXand),
      OP(SRC,DST,GXequiv) },                         /* 0x43  ~S^(P&~(D&S))  */
    { OP(SRC,DST,GXandReverse) },                    /* 0x44  S&~D           */
    { OP(PAT,SRC,GXandReverse), OP(SRC,DST,GXnor) }, /* 0x45  ~(D|(P&~S))    */
    { OP(DST,TMP,GXcopy), OP(PAT,DST,GXand),
      OP(SRC,DST,GXor), OP(TMP,DST,GXxor) },         /* 0x46  D^(S|(P&D))    */
    { OP(PAT,DST,GXxor), OP(SRC,DST,GXand),
      OP(PAT,DST,GXequiv) },                         /* 0x47  ~P^(S&(D^P))   */
    { OP(PAT,DST,GXxor), OP(SRC,DST,GXand) },        /* 0x48  S&(P^D)        */
    { OP(DST,TMP,GXcopy), OP(PAT,DST,GXand),
      OP(SRC,DST,GXor), OP(TMP,DST,GXxor),
      OP(PAT,DST,GXequiv) },                         /* 0x49  ~P^D^(S|(P&D)) */
    { OP(DST,SRC,GXor), OP(PAT,SRC,GXand),
      OP(SRC,DST,GXxor) },                           /* 0x4a  D^(P&(S|D))    */
    { OP(SRC,DST,GXorInverted), OP(PAT,DST,GXxor) }, /* 0x4b  P^(D|~S)       */
    { OP(PAT,DST,GXnand), OP(SRC,DST,GXand) },       /* 0x4c  S&~(D&P)       */
    { OP(SRC,TMP,GXcopy), OP(SRC,DST,GXxor),
      OP(PAT,SRC,GXxor), OP(SRC,DST,GXor),
      OP(TMP,DST,GXequiv) },                         /* 0x4d ~S^((S^P)|(S^D))*/
    { OP(PAT,SRC,GXxor), OP(SRC,DST,GXor),
      OP(PAT,DST,GXxor) },                           /* 0x4e  P^(D|(S^P))    */
    { OP(SRC,DST,GXorInverted), OP(PAT,DST,GXnand) },/* 0x4f  ~(P&(D|~S))    */
    { OP(PAT,DST,GXandReverse) },                    /* 0x50  P&~D           */
    { OP(PAT,SRC,GXandInverted), OP(SRC,DST,GXnor) },/* 0x51  ~(D|(S&~P))    */
    { OP(DST,SRC,GXand), OP(PAT,SRC,GXor),
      OP(SRC,DST,GXxor) },                           /* 0x52  D^(P|(S&D))    */
    { OP(SRC,DST,GXxor), OP(PAT,DST,GXand),
      OP(SRC,DST,GXequiv) },                         /* 0x53  ~S^(P&(D^S))   */
    { OP(PAT,SRC,GXnor), OP(SRC,DST,GXnor) },        /* 0x54  ~(D|~(P|S))    */
    { OP(PAT,DST,GXinvert) },                        /* 0x55  ~D             */
    { OP(PAT,SRC,GXor), OP(SRC,DST,GXxor) },         /* 0x56  D^(P|S)        */
    { OP(PAT,SRC,GXor), OP(SRC,DST,GXnand) },        /* 0x57  ~(D&(P|S))     */
    { OP(PAT,SRC,GXor), OP(SRC,DST,GXand),
      OP(PAT,DST,GXxor) },                           /* 0x58  P^(D&(P|S))    */
    { OP(PAT,SRC,GXorReverse), OP(SRC,DST,GXxor) },  /* 0x59  D^(P|~S)       */
    { OP(PAT,DST,GXxor) },                           /* 0x5a  D^P            */
    { OP(DST,SRC,GXnor), OP(PAT,SRC,GXor),
      OP(SRC,DST,GXxor) },                           /* 0x5b  D^(P|~(S|D))   */
    { OP(DST,SRC,GXxor), OP(PAT,SRC,GXor),
      OP(SRC,DST,GXxor) },                           /* 0x5c  D^(P|(S^D))    */
    { OP(PAT,SRC,GXorReverse), OP(SRC,DST,GXnand) }, /* 0x5d  ~(D&(P|~S))    */
    { OP(DST,SRC,GXandInverted), OP(PAT,SRC,GXor),
      OP(SRC,DST,GXxor) },                           /* 0x5e  D^(P|(S&~D))   */
    { OP(PAT,DST,GXnand) },                          /* 0x5f  ~(D&P)         */
    { OP(SRC,DST,GXxor), OP(PAT,DST,GXand) },        /* 0x60  P&(D^S)        */
    { OP(DST,TMP,GXcopy), OP(SRC,DST,GXand),
      OP(PAT,DST,GXor), OP(SRC,DST,GXxor),
      OP(TMP,DST,GXequiv) },                         /* 0x61  ~D^S^(P|(D&S)) */
    { OP(DST,TMP,GXcopy), OP(PAT,DST,GXor),
      OP(SRC,DST,GXand), OP(TMP,DST,GXxor) },        /* 0x62  D^(S&(P|D))    */
    { OP(PAT,DST,GXorInverted), OP(SRC,DST,GXxor) }, /* 0x63  S^(D|~P)       */
    { OP(SRC,TMP,GXcopy), OP(PAT,SRC,GXor),
      OP(SRC,DST,GXand), OP(TMP,DST,GXxor) },        /* 0x64  S^(D&(P|S))    */
    { OP(PAT,SRC,GXorInverted), OP(SRC,DST,GXxor) }, /* 0x65  D^(S|~P)       */
    { OP(SRC,DST,GXxor) },                           /* 0x66  S^D            */
    { OP(SRC,TMP,GXcopy), OP(PAT,SRC,GXnor),
      OP(SRC,DST,GXor), OP(TMP,DST,GXxor) },         /* 0x67  S^(D|~(S|P)    */
    { OP(DST,TMP,GXcopy), OP(SRC,DST,GXnor),
      OP(PAT,DST,GXor), OP(SRC,DST,GXxor),
      OP(TMP,DST,GXequiv) },                         /* 0x68  ~D^S^(P|~(D|S))*/
    { OP(SRC,DST,GXxor), OP(PAT,DST,GXequiv) },      /* 0x69  ~P^(D^S)       */
    { OP(PAT,SRC,GXand), OP(SRC,DST,GXxor) },        /* 0x6a  D^(P&S)        */
    { OP(SRC,TMP,GXcopy), OP(PAT,SRC,GXor),
      OP(SRC,DST,GXand), OP(TMP,DST,GXxor),
      OP(PAT,DST,GXequiv) },                         /* 0x6b  ~P^S^(D&(P|S)) */
    { OP(PAT,DST,GXand), OP(SRC,DST,GXxor) },        /* 0x6c  S^(D&P)        */
    { OP(DST,TMP,GXcopy), OP(PAT,DST,GXor),
      OP(SRC,DST,GXand), OP(TMP,DST,GXxor),
      OP(PAT,DST,GXequiv) },                         /* 0x6d  ~P^D^(S&(P|D)) */
    { OP(SRC,TMP,GXcopy), OP(PAT,SRC,GXorReverse),
      OP(SRC,DST,GXand), OP(TMP,DST,GXxor) },        /* 0x6e  S^(D&(P|~S))   */
    { OP(SRC,DST,GXequiv), OP(PAT,DST,GXnand) },     /* 0x6f  ~(P&~(S^D))    */
    { OP(SRC,DST,GXnand), OP(PAT,DST,GXand) },       /* 0x70  P&~(D&S)       */
    { OP(SRC,TMP,GXcopy), OP(DST,SRC,GXxor),
      OP(PAT,DST,GXxor), OP(SRC,DST,GXand),
      OP(TMP,DST,GXequiv) },                         /* 0x71 ~S^((S^D)&(P^D))*/
    { OP(SRC,TMP,GXcopy), OP(PAT,SRC,GXxor),
      OP(SRC,DST,GXor), OP(TMP,DST,GXxor) },         /* 0x72  S^(D|(P^S))    */
    { OP(PAT,DST,GXorInverted), OP(SRC,DST,GXnand) },/* 0x73  ~(S&(D|~P))    */
    { OP(DST,TMP,GXcopy), OP(PAT,DST,GXxor),
      OP(SRC,DST,GXor), OP(TMP,DST,GXxor) },         /* 0x74   D^(S|(P^D))   */
    { OP(PAT,SRC,GXorInverted), OP(SRC,DST,GXnand) },/* 0x75  ~(D&(S|~P))    */
    { OP(SRC,TMP,GXcopy), OP(PAT,SRC,GXandReverse),
      OP(SRC,DST,GXor), OP(TMP,DST,GXxor) },         /* 0x76  S^(D|(P&~S))   */
    { OP(SRC,DST,GXnand) },                          /* 0x77  ~(S&D)         */
    { OP(SRC,DST,GXand), OP(PAT,DST,GXxor) },        /* 0x78  P^(D&S)        */
    { OP(DST,TMP,GXcopy), OP(SRC,DST,GXor),
      OP(PAT,DST,GXand), OP(SRC,DST,GXxor),
      OP(TMP,DST,GXequiv) },                         /* 0x79  ~D^S^(P&(D|S)) */
    { OP(DST,SRC,GXorInverted), OP(PAT,SRC,GXand),
      OP(SRC,DST,GXxor) },                           /* 0x7a  D^(P&(S|~D))   */
    { OP(PAT,DST,GXequiv), OP(SRC,DST,GXnand) },     /* 0x7b  ~(S&~(D^P))    */
    { OP(SRC,DST,GXorInverted), OP(PAT,DST,GXand),
      OP(SRC,DST,GXxor) },                           /* 0x7c  S^(P&(D|~S))   */
    { OP(PAT,SRC,GXequiv), OP(SRC,DST,GXnand) },     /* 0x7d  ~(D&~(P^S))    */
    { OP(SRC,DST,GXxor), OP(PAT,SRC,GXxor),
      OP(SRC,DST,GXor) },                            /* 0x7e  (S^P)|(S^D)    */
    { OP(PAT,SRC,GXand), OP(SRC,DST,GXnand) },       /* 0x7f  ~(D&P&S)       */
    { OP(PAT,SRC,GXand), OP(SRC,DST,GXand) },        /* 0x80  D&P&S          */
    { OP(SRC,DST,GXxor), OP(PAT,SRC,GXxor),
      OP(SRC,DST,GXnor) },                           /* 0x81  ~((S^P)|(S^D)) */
    { OP(PAT,SRC,GXequiv), OP(SRC,DST,GXand) },      /* 0x82  D&~(P^S)       */
    { OP(SRC,DST,GXorInverted), OP(PAT,DST,GXand),
      OP(SRC,DST,GXequiv) },                         /* 0x83  ~S^(P&(D|~S))  */
    { OP(PAT,DST,GXequiv), OP(SRC,DST,GXand) },      /* 0x84  S&~(D^P)       */
    { OP(PAT,SRC,GXorInverted), OP(SRC,DST,GXand),
      OP(PAT,DST,GXequiv) },                         /* 0x85  ~P^(D&(S|~P))  */
    { OP(DST,TMP,GXcopy), OP(SRC,DST,GXor),
      OP(PAT,DST,GXand), OP(SRC,DST,GXxor),
      OP(TMP,DST,GXxor) },                           /* 0x86  D^S^(P&(D|S))  */
    { OP(SRC,DST,GXand), OP(PAT,DST,GXequiv) },      /* 0x87  ~P^(D&S)       */
    { OP(SRC,DST,GXand) },                           /* 0x88  S&D            */
    { OP(SRC,TMP,GXcopy), OP(PAT,SRC,GXandReverse),
      OP(SRC,DST,GXor), OP(TMP,DST,GXequiv) },       /* 0x89  ~S^(D|(P&~S))  */
    { OP(PAT,SRC,GXorInverted), OP(SRC,DST,GXand) }, /* 0x8a  D&(S|~P)       */
    { OP(DST,TMP,GXcopy), OP(PAT,DST,GXxor),
      OP(SRC,DST,GXor), OP(TMP,DST,GXequiv) },       /* 0x8b  ~D^(S|(P^D))   */
    { OP(PAT,DST,GXorInverted), OP(SRC,DST,GXand) }, /* 0x8c  S&(D|~P)       */
    { OP(SRC,TMP,GXcopy), OP(PAT,SRC,GXxor),
      OP(SRC,DST,GXor), OP(TMP,DST,GXequiv) },       /* 0x8d  ~S^(D|(P^S))   */
    { OP(SRC,TMP,GXcopy), OP(DST,SRC,GXxor),
      OP(PAT,DST,GXxor), OP(SRC,DST,GXand),
      OP(TMP,DST,GXxor) },                           /* 0x8e  S^((S^D)&(P^D))*/
    { OP(SRC,DST,GXnand), OP(PAT,DST,GXnand) },      /* 0x8f  ~(P&~(D&S))    */
    { OP(SRC,DST,GXequiv), OP(PAT,DST,GXand) },      /* 0x90  P&~(D^S)       */
    { OP(SRC,TMP,GXcopy), OP(PAT,SRC,GXorReverse),
      OP(SRC,DST,GXand), OP(TMP,DST,GXequiv) },      /* 0x91  ~S^(D&(P|~S))  */
    { OP(DST,TMP,GXcopy), OP(PAT,DST,GXor),
      OP(SRC,DST,GXand), OP(PAT,DST,GXxor),
      OP(TMP,DST,GXxor) },                           /* 0x92  D^P^(S&(D|P))  */
    { OP(PAT,DST,GXand), OP(SRC,DST,GXequiv) },      /* 0x93  ~S^(P&D)       */
    { OP(SRC,TMP,GXcopy), OP(PAT,SRC,GXor),
      OP(SRC,DST,GXand), OP(PAT,DST,GXxor),
      OP(TMP,DST,GXxor) },                           /* 0x94  S^P^(D&(P|S))  */
    { OP(PAT,SRC,GXand), OP(SRC,DST,GXequiv) },      /* 0x95  ~D^(P&S)       */
    { OP(PAT,SRC,GXxor), OP(SRC,DST,GXxor) },        /* 0x96  D^P^S          */
    { OP(SRC,TMP,GXcopy), OP(PAT,SRC,GXnor),
      OP(SRC,DST,GXor), OP(PAT,DST,GXxor),
      OP(TMP,DST,GXxor) },                           /* 0x97  S^P^(D|~(P|S)) */
    { OP(SRC,TMP,GXcopy), OP(PAT,SRC,GXnor),
      OP(SRC,DST,GXor), OP(TMP,DST,GXequiv) },       /* 0x98  ~S^(D|~(P|S))  */
    { OP(SRC,DST,GXequiv) },                         /* 0x99  ~S^D           */
    { OP(PAT,SRC,GXandReverse), OP(SRC,DST,GXxor) }, /* 0x9a  D^(P&~S)       */
    { OP(SRC,TMP,GXcopy), OP(PAT,SRC,GXor),
      OP(SRC,DST,GXand), OP(TMP,DST,GXequiv) },      /* 0x9b  ~S^(D&(P|S))   */
    { OP(PAT,DST,GXandReverse), OP(SRC,DST,GXxor) }, /* 0x9c  S^(P&~D)       */
    { OP(DST,TMP,GXcopy), OP(PAT,DST,GXor),
      OP(SRC,DST,GXand), OP(TMP,DST,GXequiv) },      /* 0x9d  ~D^(S&(P|D))   */
    { OP(DST,TMP,GXcopy), OP(SRC,DST,GXand),
      OP(PAT,DST,GXor), OP(SRC,DST,GXxor),
      OP(TMP,DST,GXxor) },                           /* 0x9e  D^S^(P|(D&S))  */
    { OP(SRC,DST,GXxor), OP(PAT,DST,GXnand) },       /* 0x9f  ~(P&(D^S))     */
    { OP(PAT,DST,GXand) },                           /* 0xa0  D&P            */
    { OP(PAT,SRC,GXandInverted), OP(SRC,DST,GXor),
      OP(PAT,DST,GXequiv) },                         /* 0xa1  ~P^(D|(S&~P))  */
    { OP(PAT,SRC,GXorReverse), OP(SRC,DST,GXand) },  /* 0xa2  D&(P|~S)       */
    { OP(DST,SRC,GXxor), OP(PAT,SRC,GXor),
      OP(SRC,DST,GXequiv) },                         /* 0xa3  ~D^(P|(S^D))   */
    { OP(PAT,SRC,GXnor), OP(SRC,DST,GXor),
      OP(PAT,DST,GXequiv) },                         /* 0xa4  ~P^(D|~(S|P))  */
    { OP(PAT,DST,GXequiv) },                         /* 0xa5  ~P^D           */
    { OP(PAT,SRC,GXandInverted), OP(SRC,DST,GXxor) },/* 0xa6  D^(S&~P)       */
    { OP(PAT,SRC,GXor), OP(SRC,DST,GXand),
      OP(PAT,DST,GXequiv) },                         /* 0xa7  ~P^(D&(S|P))   */
    { OP(PAT,SRC,GXor), OP(SRC,DST,GXand) },         /* 0xa8  D&(P|S)        */
    { OP(PAT,SRC,GXor), OP(SRC,DST,GXequiv) },       /* 0xa9  ~D^(P|S)       */
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    { OP(PAT,DST,GXnoop) },                          /* 0xaa  D              */
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    { OP(PAT,SRC,GXnor), OP(SRC,DST,GXor) },         /* 0xab  D|~(P|S)       */
    { OP(SRC,DST,GXxor), OP(PAT,DST,GXand),
      OP(SRC,DST,GXxor) },                           /* 0xac  S^(P&(D^S))    */
    { OP(DST,SRC,GXand), OP(PAT,SRC,GXor),
      OP(SRC,DST,GXequiv) },                         /* 0xad  ~D^(P|(S&D))   */
    { OP(PAT,SRC,GXandInverted), OP(SRC,DST,GXor) }, /* 0xae  D|(S&~P)       */
    { OP(PAT,DST,GXorInverted) },                    /* 0xaf  D|~P           */
    { OP(SRC,DST,GXorInverted), OP(PAT,DST,GXand) }, /* 0xb0  P&(D|~S)       */
    { OP(PAT,SRC,GXxor), OP(SRC,DST,GXor),
      OP(PAT,DST,GXequiv) },                         /* 0xb1  ~P^(D|(S^P))   */
    { OP(SRC,TMP,GXcopy), OP(SRC,DST,GXxor),
      OP(PAT,SRC,GXxor), OP(SRC,DST,GXor),
      OP(TMP,DST,GXxor) },                           /* 0xb2  S^((S^P)|(S^D))*/
    { OP(PAT,DST,GXnand), OP(SRC,DST,GXnand) },      /* 0xb3  ~(S&~(D&P))    */
    { OP(SRC,DST,GXandReverse), OP(PAT,DST,GXxor) }, /* 0xb4  P^(S&~D)       */
    { OP(DST,SRC,GXor), OP(PAT,SRC,GXand),
      OP(SRC,DST,GXequiv) },                         /* 0xb5  ~D^(P&(S|D))   */
    { OP(DST,TMP,GXcopy), OP(PAT,DST,GXand),
      OP(SRC,DST,GXor), OP(PAT,DST,GXxor),
      OP(TMP,DST,GXxor) },                           /* 0xb6  D^P^(S|(D&P))  */
    { OP(PAT,DST,GXxor), OP(SRC,DST,GXnand) },       /* 0xb7  ~(S&(D^P))     */
    { OP(PAT,DST,GXxor), OP(SRC,DST,GXand),
      OP(PAT,DST,GXxor) },                           /* 0xb8  P^(S&(D^P))    */
    { OP(DST,TMP,GXcopy), OP(PAT,DST,GXand),
      OP(SRC,DST,GXor), OP(TMP,DST,GXequiv) },       /* 0xb9  ~D^(S|(P&D))   */
    { OP(PAT,SRC,GXandReverse), OP(SRC,DST,GXor) },  /* 0xba  D|(P&~S)       */
    { OP(SRC,DST,GXorInverted) },                    /* 0xbb  ~S|D           */
    { OP(SRC,DST,GXnand), OP(PAT,DST,GXand),
      OP(SRC,DST,GXxor) },                           /* 0xbc  S^(P&~(D&S))   */
    { OP(DST,SRC,GXxor), OP(PAT,DST,GXxor),
      OP(SRC,DST,GXnand) },                          /* 0xbd  ~((S^D)&(P^D)) */
    { OP(PAT,SRC,GXxor), OP(SRC,DST,GXor) },         /* 0xbe  D|(P^S)        */
    { OP(PAT,SRC,GXnand), OP(SRC,DST,GXor) },        /* 0xbf  D|~(P&S)       */
    { OP(PAT,SRC,GXand) },                           /* 0xc0  P&S            */
    { OP(SRC,DST,GXandInverted), OP(PAT,DST,GXor),
      OP(SRC,DST,GXequiv) },                         /* 0xc1  ~S^(P|(D&~S))  */
    { OP(SRC,DST,GXnor), OP(PAT,DST,GXor),
      OP(SRC,DST,GXequiv) },                         /* 0xc2  ~S^(P|~(D|S))  */
    { OP(PAT,SRC,GXequiv) },                         /* 0xc3  ~P^S           */
    { OP(PAT,DST,GXorReverse), OP(SRC,DST,GXand) },  /* 0xc4  S&(P|~D)       */
    { OP(SRC,DST,GXxor), OP(PAT,DST,GXor),
      OP(SRC,DST,GXequiv) },                         /* 0xc5  ~S^(P|(D^S))   */
    { OP(PAT,DST,GXandInverted), OP(SRC,DST,GXxor) },/* 0xc6  S^(D&~P)       */
    { OP(PAT,DST,GXor), OP(SRC,DST,GXand),
      OP(PAT,DST,GXequiv) },                         /* 0xc7  ~P^(S&(D|P))   */
    { OP(PAT,DST,GXor), OP(SRC,DST,GXand) },         /* 0xc8  S&(D|P)        */
    { OP(PAT,DST,GXor), OP(SRC,DST,GXequiv) },       /* 0xc9  ~S^(P|D)       */
    { OP(DST,SRC,GXxor), OP(PAT,SRC,GXand),
      OP(SRC,DST,GXxor) },                           /* 0xca  D^(P&(S^D))    */
    { OP(SRC,DST,GXand), OP(PAT,DST,GXor),
      OP(SRC,DST,GXequiv) },                         /* 0xcb  ~S^(P|(D&S))   */
    { OP(SRC,DST,GXcopy) },                          /* 0xcc  S              */
    { OP(PAT,DST,GXnor), OP(SRC,DST,GXor) },         /* 0xcd  S|~(D|P)       */
    { OP(PAT,DST,GXandInverted), OP(SRC,DST,GXor) }, /* 0xce  S|(D&~P)       */
    { OP(PAT,SRC,GXorInverted) },                    /* 0xcf  S|~P           */
    { OP(SRC,DST,GXorReverse), OP(PAT,DST,GXand) },  /* 0xd0  P&(S|~D)       */
    { OP(PAT,DST,GXxor), OP(SRC,DST,GXor),
      OP(PAT,DST,GXequiv) },                         /* 0xd1  ~P^(S|(D^P))   */
    { OP(SRC,DST,GXandInverted), OP(PAT,DST,GXxor) },/* 0xd2  P^(D&~S)       */
    { OP(SRC,DST,GXor), OP(PAT,DST,GXand),
      OP(SRC,DST,GXequiv) },                         /* 0xd3  ~S^(P&(D|S))   */
    { OP(SRC,TMP,GXcopy), OP(PAT,SRC,GXxor),
      OP(PAT,DST,GXxor), OP(SRC,DST,GXand),
      OP(TMP,DST,GXxor) },                           /* 0xd4  S^((S^P)&(D^P))*/
    { OP(PAT,SRC,GXnand), OP(SRC,DST,GXnand) },      /* 0xd5  ~(D&~(P&S))    */
    { OP(SRC,TMP,GXcopy), OP(PAT,SRC,GXand),
      OP(SRC,DST,GXor), OP(PAT,DST,GXxor),
      OP(TMP,DST,GXxor) },                           /* 0xd6  S^P^(D|(P&S))  */
    { OP(PAT,SRC,GXxor), OP(SRC,DST,GXnand) },       /* 0xd7  ~(D&(P^S))     */
    { OP(PAT,SRC,GXxor), OP(SRC,DST,GXand),
      OP(PAT,DST,GXxor) },                           /* 0xd8  P^(D&(S^P))    */
    { OP(SRC,TMP,GXcopy), OP(PAT,SRC,GXand),
      OP(SRC,DST,GXor), OP(TMP,DST,GXequiv) },       /* 0xd9  ~S^(D|(P&S))   */
    { OP(DST,SRC,GXnand), OP(PAT,SRC,GXand),
      OP(SRC,DST,GXxor) },                           /* 0xda  D^(P&~(S&D))   */
    { OP(SRC,DST,GXxor), OP(PAT,SRC,GXxor),
      OP(SRC,DST,GXnand) },                          /* 0xdb  ~((S^P)&(S^D)) */
    { OP(PAT,DST,GXandReverse), OP(SRC,DST,GXor) },  /* 0xdc  S|(P&~D)       */
    { OP(SRC,DST,GXorReverse) },                     /* 0xdd  S|~D           */
    { OP(PAT,DST,GXxor), OP(SRC,DST,GXor) },         /* 0xde  S|(D^P)        */
    { OP(PAT,DST,GXnand), OP(SRC,DST,GXor) },        /* 0xdf  S|~(D&P)       */
    { OP(SRC,DST,GXor), OP(PAT,DST,GXand) },         /* 0xe0  P&(D|S)        */
    { OP(SRC,DST,GXor), OP(PAT,DST,GXequiv) },       /* 0xe1  ~P^(D|S)       */
    { OP(DST,TMP,GXcopy), OP(PAT,DST,GXxor),
      OP(SRC,DST,GXand), OP(TMP,DST,GXxor) },        /* 0xe2  D^(S&(P^D))    */
    { OP(PAT,DST,GXand), OP(SRC,DST,GXor),
      OP(PAT,DST,GXequiv) },                         /* 0xe3  ~P^(S|(D&P))   */
    { OP(SRC,TMP,GXcopy), OP(PAT,SRC,GXxor),
      OP(SRC,DST,GXand), OP(TMP,DST,GXxor) },        /* 0xe4  S^(D&(P^S))    */
    { OP(PAT,SRC,GXand), OP(SRC,DST,GXor),
      OP(PAT,DST,GXequiv) },                         /* 0xe5  ~P^(D|(S&P))   */
    { OP(SRC,TMP,GXcopy), OP(PAT,SRC,GXnand),
      OP(SRC,DST,GXand), OP(TMP,DST,GXxor) },        /* 0xe6  S^(D&~(P&S))   */
    { OP(PAT,SRC,GXxor), OP(PAT,DST,GXxor),
      OP(SRC,DST,GXnand) },                          /* 0xe7  ~((S^P)&(D^P)) */
    { OP(SRC,TMP,GXcopy), OP(SRC,DST,GXxor),
      OP(PAT,SRC,GXxor), OP(SRC,DST,GXand),
      OP(TMP,DST,GXxor) },                           /* 0xe8  S^((S^P)&(S^D))*/
    { OP(DST,TMP,GXcopy), OP(SRC,DST,GXnand),
      OP(PAT,DST,GXand), OP(SRC,DST,GXxor),
      OP(TMP,DST,GXequiv) },                         /* 0xe9  ~D^S^(P&~(S&D))*/
    { OP(PAT,SRC,GXand), OP(SRC,DST,GXor) },         /* 0xea  D|(P&S)        */
    { OP(PAT,SRC,GXequiv), OP(SRC,DST,GXor) },       /* 0xeb  D|~(P^S)       */
    { OP(PAT,DST,GXand), OP(SRC,DST,GXor) },         /* 0xec  S|(D&P)        */
    { OP(PAT,DST,GXequiv), OP(SRC,DST,GXor) },       /* 0xed  S|~(D^P)       */
    { OP(SRC,DST,GXor) },                            /* 0xee  S|D            */
    { OP(PAT,DST,GXorInverted), OP(SRC,DST,GXor) },  /* 0xef  S|D|~P         */
    { OP(PAT,DST,GXcopy) },                          /* 0xf0  P              */
    { OP(SRC,DST,GXnor), OP(PAT,DST,GXor) },         /* 0xf1  P|~(D|S)       */
    { OP(SRC,DST,GXandInverted), OP(PAT,DST,GXor) }, /* 0xf2  P|(D&~S)       */
    { OP(PAT,SRC,GXorReverse) },                     /* 0xf3  P|~S           */
    { OP(SRC,DST,GXandReverse), OP(PAT,DST,GXor) },  /* 0xf4  P|(S&~D)       */
    { OP(PAT,DST,GXorReverse) },                     /* 0xf5  P|~D           */
    { OP(SRC,DST,GXxor), OP(PAT,DST,GXor) },         /* 0xf6  P|(D^S)        */
    { OP(SRC,DST,GXnand), OP(PAT,DST,GXor) },        /* 0xf7  P|~(S&D)       */
    { OP(SRC,DST,GXand), OP(PAT,DST,GXor) },         /* 0xf8  P|(D&S)        */
    { OP(SRC,DST,GXequiv), OP(PAT,DST,GXor) },       /* 0xf9  P|~(D^S)       */
    { OP(PAT,DST,GXor) },                            /* 0xfa  D|P            */
    { OP(PAT,SRC,GXorReverse), OP(SRC,DST,GXor) },   /* 0xfb  D|P|~S         */
    { OP(PAT,SRC,GXor) },                            /* 0xfc  P|S            */
    { OP(SRC,DST,GXorReverse), OP(PAT,DST,GXor) },   /* 0xfd  P|S|~D         */
    { OP(SRC,DST,GXor), OP(PAT,DST,GXor) },          /* 0xfe  P|D|S          */
    { OP(PAT,DST,GXset) }                            /* 0xff  1              */
};

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static const unsigned char bit_swap[256] =
{
    0x00, 0x80, 0x40, 0xc0, 0x20, 0xa0, 0x60, 0xe0,
    0x10, 0x90, 0x50, 0xd0, 0x30, 0xb0, 0x70, 0xf0,
    0x08, 0x88, 0x48, 0xc8, 0x28, 0xa8, 0x68, 0xe8,
    0x18, 0x98, 0x58, 0xd8, 0x38, 0xb8, 0x78, 0xf8,
    0x04, 0x84, 0x44, 0xc4, 0x24, 0xa4, 0x64, 0xe4,
    0x14, 0x94, 0x54, 0xd4, 0x34, 0xb4, 0x74, 0xf4,
    0x0c, 0x8c, 0x4c, 0xcc, 0x2c, 0xac, 0x6c, 0xec,
    0x1c, 0x9c, 0x5c, 0xdc, 0x3c, 0xbc, 0x7c, 0xfc,
    0x02, 0x82, 0x42, 0xc2, 0x22, 0xa2, 0x62, 0xe2,
    0x12, 0x92, 0x52, 0xd2, 0x32, 0xb2, 0x72, 0xf2,
    0x0a, 0x8a, 0x4a, 0xca, 0x2a, 0xaa, 0x6a, 0xea,
    0x1a, 0x9a, 0x5a, 0xda, 0x3a, 0xba, 0x7a, 0xfa,
    0x06, 0x86, 0x46, 0xc6, 0x26, 0xa6, 0x66, 0xe6,
    0x16, 0x96, 0x56, 0xd6, 0x36, 0xb6, 0x76, 0xf6,
    0x0e, 0x8e, 0x4e, 0xce, 0x2e, 0xae, 0x6e, 0xee,
    0x1e, 0x9e, 0x5e, 0xde, 0x3e, 0xbe, 0x7e, 0xfe,
    0x01, 0x81, 0x41, 0xc1, 0x21, 0xa1, 0x61, 0xe1,
    0x11, 0x91, 0x51, 0xd1, 0x31, 0xb1, 0x71, 0xf1,
    0x09, 0x89, 0x49, 0xc9, 0x29, 0xa9, 0x69, 0xe9,
    0x19, 0x99, 0x59, 0xd9, 0x39, 0xb9, 0x79, 0xf9,
    0x05, 0x85, 0x45, 0xc5, 0x25, 0xa5, 0x65, 0xe5,
    0x15, 0x95, 0x55, 0xd5, 0x35, 0xb5, 0x75, 0xf5,
    0x0d, 0x8d, 0x4d, 0xcd, 0x2d, 0xad, 0x6d, 0xed,
    0x1d, 0x9d, 0x5d, 0xdd, 0x3d, 0xbd, 0x7d, 0xfd,
    0x03, 0x83, 0x43, 0xc3, 0x23, 0xa3, 0x63, 0xe3,
    0x13, 0x93, 0x53, 0xd3, 0x33, 0xb3, 0x73, 0xf3,
    0x0b, 0x8b, 0x4b, 0xcb, 0x2b, 0xab, 0x6b, 0xeb,
    0x1b, 0x9b, 0x5b, 0xdb, 0x3b, 0xbb, 0x7b, 0xfb,
    0x07, 0x87, 0x47, 0xc7, 0x27, 0xa7, 0x67, 0xe7,
    0x17, 0x97, 0x57, 0xd7, 0x37, 0xb7, 0x77, 0xf7,
    0x0f, 0x8f, 0x4f, 0xcf, 0x2f, 0xaf, 0x6f, 0xef,
    0x1f, 0x9f, 0x5f, 0xdf, 0x3f, 0xbf, 0x7f, 0xff
};
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#ifdef WORDS_BIGENDIAN
static const unsigned int zeropad_masks[32] =
{
    0xffffffff, 0x80000000, 0xc0000000, 0xe0000000, 0xf0000000, 0xf8000000, 0xfc000000, 0xfe000000,
    0xff000000, 0xff800000, 0xffc00000, 0xffe00000, 0xfff00000, 0xfff80000, 0xfffc0000, 0xfffe0000,
    0xffff0000, 0xffff8000, 0xffffc000, 0xffffe000, 0xfffff000, 0xfffff800, 0xfffffc00, 0xfffffe00,
    0xffffff00, 0xffffff80, 0xffffffc0, 0xffffffe0, 0xfffffff0, 0xfffffff8, 0xfffffffc, 0xfffffffe
};
#else
static const unsigned int zeropad_masks[32] =
{
    0xffffffff, 0x00000080, 0x000000c0, 0x000000e0, 0x000000f0, 0x000000f8, 0x000000fc, 0x000000fe,
    0x000000ff, 0x000080ff, 0x0000c0ff, 0x0000e0ff, 0x0000f0ff, 0x0000f8ff, 0x0000fcff, 0x0000feff,
    0x0000ffff, 0x0080ffff, 0x00c0ffff, 0x00e0ffff, 0x00f0ffff, 0x00f8ffff, 0x00fcffff, 0x00feffff,
    0x00ffffff, 0x80ffffff, 0xc0ffffff, 0xe0ffffff, 0xf0ffffff, 0xf8ffffff, 0xfcffffff, 0xfeffffff
};
#endif

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#ifdef BITBLT_TEST  /* Opcodes test */

static int do_bitop( int s, int d, int rop )
{
    int res;
    switch(rop)
    {
    case GXclear:        res = 0; break;
    case GXand:          res = s & d; break;
    case GXandReverse:   res = s & ~d; break;
    case GXcopy:         res = s; break;
    case GXandInverted:  res = ~s & d; break;
    case GXnoop:         res = d; break;
    case GXxor:          res = s ^ d; break;
    case GXor:           res = s | d; break;
    case GXnor:          res = ~(s | d); break;
    case GXequiv:        res = ~s ^ d; break;
    case GXinvert:       res = ~d; break;
    case GXorReverse:    res = s | ~d; break;
    case GXcopyInverted: res = ~s; break;
    case GXorInverted:   res = ~s | d; break;
    case GXnand:         res = ~(s & d); break;
    case GXset:          res = 1; break;
    }
    return res & 1;
}

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int main()
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{
    int rop, i, res, src, dst, pat, tmp, dstUsed;
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    const unsigned char *opcode;
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    for (rop = 0; rop < 256; rop++)
    {
        res = dstUsed = 0;
        for (i = 0; i < 8; i++)
        {
            pat = (i >> 2) & 1;
            src = (i >> 1) & 1;
            dst = i & 1;
            for (opcode = BITBLT_Opcodes[rop]; *opcode; opcode++)
            {
                switch(*opcode >> 4)
                {
                case OP_ARGS(DST,TMP):
                    tmp = do_bitop( dst, tmp, *opcode & 0xf );
                    break;
                case OP_ARGS(DST,SRC):
                    src = do_bitop( dst, src, *opcode & 0xf );
                    break;
                case OP_ARGS(SRC,TMP):
                    tmp = do_bitop( src, tmp, *opcode & 0xf );
                    break;
                case OP_ARGS(SRC,DST):
                    dst = do_bitop( src, dst, *opcode & 0xf );
                    dstUsed = 1;
                    break;
                case OP_ARGS(PAT,DST):
                    dst = do_bitop( pat, dst, *opcode & 0xf );
                    dstUsed = 1;
                    break;
                case OP_ARGS(PAT,SRC):
                    src = do_bitop( pat, src, *opcode & 0xf );
                    break;
                case OP_ARGS(TMP,DST):
                    dst = do_bitop( tmp, dst, *opcode & 0xf );
                    dstUsed = 1;
                    break;
                case OP_ARGS(TMP,SRC):
                    src = do_bitop( tmp, src, *opcode & 0xf );
                    break;
                default:
                    printf( "Invalid opcode %x\n", *opcode );
                }
            }
            if (!dstUsed) dst = src;
            if (dst) res |= 1 << i;
        }
        if (res != rop) printf( "%02x: ERROR, res=%02x\n", rop, res );
    }
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    return 0;
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}

#endif  /* BITBLT_TEST */

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/* handler for XGetImage BadMatch errors */
static int XGetImage_handler( Display *dpy, XErrorEvent *event, void *arg )
{
    return (event->request_code == X_GetImage && event->error_code == BadMatch);
}

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/***********************************************************************
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 *           BITBLT_GetDstArea
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 *
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 * Retrieve an area from the destination DC, mapping all the
 * pixels to Windows colors.
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 */
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static int BITBLT_GetDstArea(X11DRV_PDEVICE *physDev, Pixmap pixmap, GC gc, const RECT *visRectDst)
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{
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    int exposures = 0;
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    INT width  = visRectDst->right - visRectDst->left;
    INT height = visRectDst->bottom - visRectDst->top;
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    if (!X11DRV_PALETTE_XPixelToPalette || (physDev->depth == 1) ||
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	(X11DRV_PALETTE_PaletteFlags & X11DRV_PALETTE_VIRTUAL) )
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    {
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        XCopyArea( gdi_display, physDev->drawable, pixmap, gc,
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                   physDev->dc_rect.left + visRectDst->left, physDev->dc_rect.top + visRectDst->top,
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                   width, height, 0, 0 );
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        exposures++;
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    }
    else
    {
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        INT x, y;
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        XImage *image;

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        /* Make sure we don't get a BadMatch error */
        XCopyArea( gdi_display, physDev->drawable, pixmap, gc,
                   physDev->dc_rect.left + visRectDst->left,
                   physDev->dc_rect.top + visRectDst->top,
                   width, height, 0, 0);
        exposures++;
        image = XGetImage( gdi_display, pixmap, 0, 0, width, height,
                           AllPlanes, ZPixmap );
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        if (image)
        {
            for (y = 0; y < height; y++)
                for (x = 0; x < width; x++)
                    XPutPixel( image, x, y,
                               X11DRV_PALETTE_XPixelToPalette[XGetPixel( image, x, y )]);
            XPutImage( gdi_display, pixmap, gc, image, 0, 0, 0, 0, width, height );
            XDestroyImage( image );
        }
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    }
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    return exposures;
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}


/***********************************************************************
 *           BITBLT_PutDstArea
 *
 * Put an area back into the destination DC, mapping the pixel
 * colors to X pixels.
 */
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static int BITBLT_PutDstArea(X11DRV_PDEVICE *physDev, Pixmap pixmap, const RECT *visRectDst)
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{
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    int exposures = 0;
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    INT width  = visRectDst->right - visRectDst->left;
    INT height = visRectDst->bottom - visRectDst->top;
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    /* !X11DRV_PALETTE_PaletteToXPixel is _NOT_ enough */
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    if (!X11DRV_PALETTE_PaletteToXPixel || (physDev->depth == 1) ||
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        (X11DRV_PALETTE_PaletteFlags & X11DRV_PALETTE_VIRTUAL) )
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    {
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        XCopyArea( gdi_display, pixmap, physDev->drawable, physDev->gc, 0, 0, width, height,
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                   physDev->dc_rect.left + visRectDst->left,
                   physDev->dc_rect.top + visRectDst->top );
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        exposures++;
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    }
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    else
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    {
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        register INT x, y;
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        XImage *image = XGetImage( gdi_display, pixmap, 0, 0, width, height,
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                                   AllPlanes, ZPixmap );
        for (y = 0; y < height; y++)
            for (x = 0; x < width; x++)
            {
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                XPutPixel( image, x, y,
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                           X11DRV_PALETTE_PaletteToXPixel[XGetPixel( image, x, y )]);
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            }
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        XPutImage( gdi_display, physDev->drawable, physDev->gc, image, 0, 0,
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                   physDev->dc_rect.left + visRectDst->left,
                   physDev->dc_rect.top + visRectDst->top, width, height );
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        XDestroyImage( image );
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    }
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    return exposures;
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}

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static BOOL same_format(X11DRV_PDEVICE *physDevSrc, X11DRV_PDEVICE *physDevDst)
{
    if (physDevSrc->depth != physDevDst->depth) return FALSE;
    if (!physDevSrc->color_shifts && !physDevDst->color_shifts) return TRUE;
    if (physDevSrc->color_shifts && physDevDst->color_shifts)
        return !memcmp(physDevSrc->color_shifts, physDevDst->color_shifts, sizeof(ColorShifts));
    return FALSE;
}
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void execute_rop( X11DRV_PDEVICE *physdev, Pixmap src_pixmap, GC gc, const RECT *visrect, DWORD rop )
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{
    Pixmap pixmaps[3];
    Pixmap result = src_pixmap;
    BOOL null_brush;
    const BYTE *opcode = BITBLT_Opcodes[(rop >> 16) & 0xff];
    BOOL use_pat = (((rop >> 4) & 0x0f0000) != (rop & 0x0f0000));
    BOOL use_dst = (((rop >> 1) & 0x550000) != (rop & 0x550000));
    int width  = visrect->right - visrect->left;
    int height = visrect->bottom - visrect->top;

    pixmaps[SRC] = src_pixmap;
    pixmaps[TMP] = 0;
    pixmaps[DST] = XCreatePixmap( gdi_display, root_window, width, height, physdev->depth );

    if (use_dst) BITBLT_GetDstArea( physdev, pixmaps[DST], gc, visrect );
    null_brush = use_pat && !X11DRV_SetupGCForPatBlt( physdev, gc, TRUE );

    for ( ; *opcode; opcode++)
    {
        if (OP_DST(*opcode) == DST) result = pixmaps[DST];
        XSetFunction( gdi_display, gc, OP_ROP(*opcode) );
        switch(OP_SRCDST(*opcode))
        {
        case OP_ARGS(DST,TMP):
        case OP_ARGS(SRC,TMP):
            if (!pixmaps[TMP])
                pixmaps[TMP] = XCreatePixmap( gdi_display, root_window, width, height, physdev->depth );
            /* fall through */
        case OP_ARGS(DST,SRC):
        case OP_ARGS(SRC,DST):
        case OP_ARGS(TMP,SRC):
        case OP_ARGS(TMP,DST):
            XCopyArea( gdi_display, pixmaps[OP_SRC(*opcode)], pixmaps[OP_DST(*opcode)], gc,
                       0, 0, width, height, 0, 0 );
            break;
        case OP_ARGS(PAT,DST):
        case OP_ARGS(PAT,SRC):
            if (!null_brush)
                XFillRectangle( gdi_display, pixmaps[OP_DST(*opcode)], gc, 0, 0, width, height );
            break;
        }
    }
    XSetFunction( gdi_display, physdev->gc, GXcopy );
    physdev->exposures += BITBLT_PutDstArea( physdev, result, visrect );
    XFreePixmap( gdi_display, pixmaps[DST] );
    if (pixmaps[TMP]) XFreePixmap( gdi_display, pixmaps[TMP] );
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    add_device_bounds( physdev, visrect );
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}

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/***********************************************************************
 *           X11DRV_PatBlt
 */
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BOOL X11DRV_PatBlt( PHYSDEV dev, struct bitblt_coords *dst, DWORD rop )
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{
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    X11DRV_PDEVICE *physDev = get_x11drv_dev( dev );
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    BOOL usePat = (((rop >> 4) & 0x0f0000) != (rop & 0x0f0000));
    const BYTE *opcode = BITBLT_Opcodes[(rop >> 16) & 0xff];

    if (usePat && !X11DRV_SetupGCForBrush( physDev )) return TRUE;

    XSetFunction( gdi_display, physDev->gc, OP_ROP(*opcode) );

    switch(rop)  /* a few special cases */
    {
    case BLACKNESS:  /* 0x00 */
    case WHITENESS:  /* 0xff */
        if ((physDev->depth != 1) && X11DRV_PALETTE_PaletteToXPixel)
        {
            XSetFunction( gdi_display, physDev->gc, GXcopy );
            if (rop == BLACKNESS)
                XSetForeground( gdi_display, physDev->gc, X11DRV_PALETTE_PaletteToXPixel[0] );
            else
                XSetForeground( gdi_display, physDev->gc,
                                WhitePixel( gdi_display, DefaultScreen(gdi_display) ));
            XSetFillStyle( gdi_display, physDev->gc, FillSolid );
        }
        break;
    case DSTINVERT:  /* 0x55 */
        if (!(X11DRV_PALETTE_PaletteFlags & (X11DRV_PALETTE_PRIVATE | X11DRV_PALETTE_VIRTUAL)))
        {
            /* Xor is much better when we do not have full colormap.   */
            /* Using white^black ensures that we invert at least black */
            /* and white. */
            unsigned long xor_pix = (WhitePixel( gdi_display, DefaultScreen(gdi_display) ) ^
                                     BlackPixel( gdi_display, DefaultScreen(gdi_display) ));
            XSetFunction( gdi_display, physDev->gc, GXxor );
            XSetForeground( gdi_display, physDev->gc, xor_pix);
            XSetFillStyle( gdi_display, physDev->gc, FillSolid );
        }
        break;
    }
    XFillRectangle( gdi_display, physDev->drawable, physDev->gc,
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                    physDev->dc_rect.left + dst->visrect.left,
                    physDev->dc_rect.top + dst->visrect.top,
                    dst->visrect.right - dst->visrect.left,
                    dst->visrect.bottom - dst->visrect.top );
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    add_device_bounds( physDev, &dst->visrect );
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    return TRUE;
}


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/***********************************************************************
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 *           X11DRV_StretchBlt
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 */
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BOOL X11DRV_StretchBlt( PHYSDEV dst_dev, struct bitblt_coords *dst,
                        PHYSDEV src_dev, struct bitblt_coords *src, DWORD rop )
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{
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    X11DRV_PDEVICE *physDevDst = get_x11drv_dev( dst_dev );
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    X11DRV_PDEVICE *physDevSrc = get_x11drv_dev( src_dev );
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    INT width, height;
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    const BYTE *opcode;
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    Pixmap src_pixmap;
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    GC gc;
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    if (src_dev->funcs != dst_dev->funcs ||
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        src->width != dst->width || src->height != dst->height ||  /* no stretching with core X11 */
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        (physDevDst->depth == 1 && physDevSrc->depth != 1) ||  /* color -> mono done by hand */
        (X11DRV_PALETTE_XPixelToPalette && physDevSrc->depth != 1))  /* needs palette mapping */
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    {
        dst_dev = GET_NEXT_PHYSDEV( dst_dev, pStretchBlt );
        return dst_dev->funcs->pStretchBlt( dst_dev, dst, src_dev, src, rop );
    }

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    width  = dst->visrect.right - dst->visrect.left;
    height = dst->visrect.bottom - dst->visrect.top;
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    opcode = BITBLT_Opcodes[(rop >> 16) & 0xff];
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    add_device_bounds( physDevDst, &dst->visrect );

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    /* a few optimizations for single-op ROPs */
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    if (!opcode[1] && OP_SRCDST(opcode[0]) == OP_ARGS(SRC,DST))
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    {
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        if (same_format(physDevSrc, physDevDst))
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        {
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            XSetFunction( gdi_display, physDevDst->gc, OP_ROP(*opcode) );
            XCopyArea( gdi_display, physDevSrc->drawable,
                       physDevDst->drawable, physDevDst->gc,
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                       physDevSrc->dc_rect.left + src->visrect.left,
                       physDevSrc->dc_rect.top + src->visrect.top,
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                       width, height,
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                       physDevDst->dc_rect.left + dst->visrect.left,
                       physDevDst->dc_rect.top + dst->visrect.top );
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            physDevDst->exposures++;
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            return TRUE;
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        }
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        if (physDevSrc->depth == 1)
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        {
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            int text_pixel = X11DRV_PALETTE_ToPhysical( physDevDst, GetTextColor(physDevDst->dev.hdc) );
            int bkgnd_pixel = X11DRV_PALETTE_ToPhysical( physDevDst, GetBkColor(physDevDst->dev.hdc) );

            XSetBackground( gdi_display, physDevDst->gc, text_pixel );
            XSetForeground( gdi_display, physDevDst->gc, bkgnd_pixel );
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            XSetFunction( gdi_display, physDevDst->gc, OP_ROP(*opcode) );
            XCopyPlane( gdi_display, physDevSrc->drawable,
                        physDevDst->drawable, physDevDst->gc,
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                        physDevSrc->dc_rect.left + src->visrect.left,
                        physDevSrc->dc_rect.top + src->visrect.top,
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                        width, height,
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                        physDevDst->dc_rect.left + dst->visrect.left,
                        physDevDst->dc_rect.top + dst->visrect.top, 1 );
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            physDevDst->exposures++;
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            return TRUE;
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        }
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    }
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    gc = XCreateGC( gdi_display, physDevDst->drawable, 0, NULL );
    XSetSubwindowMode( gdi_display, gc, IncludeInferiors );
    XSetGraphicsExposures( gdi_display, gc, False );

    /* retrieve the source */

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    src_pixmap = XCreatePixmap( gdi_display, root_window, width, height, physDevDst->depth );
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    if (physDevSrc->depth == 1)
    {
        /* MSDN says if StretchBlt must convert a bitmap from monochrome
           to color or vice versa, the foreground and background color of
           the device context are used.  In fact, it also applies to the
           case when it is converted from mono to mono. */
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        int text_pixel = X11DRV_PALETTE_ToPhysical( physDevDst, GetTextColor(physDevDst->dev.hdc) );
        int bkgnd_pixel = X11DRV_PALETTE_ToPhysical( physDevDst, GetBkColor(physDevDst->dev.hdc) );

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        if (X11DRV_PALETTE_XPixelToPalette && physDevDst->depth != 1)
        {
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            XSetBackground( gdi_display, gc, X11DRV_PALETTE_XPixelToPalette[text_pixel] );
            XSetForeground( gdi_display, gc, X11DRV_PALETTE_XPixelToPalette[bkgnd_pixel]);
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        }
        else
        {
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            XSetBackground( gdi_display, gc, text_pixel );
            XSetForeground( gdi_display, gc, bkgnd_pixel );
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        }
        XCopyPlane( gdi_display, physDevSrc->drawable, src_pixmap, gc,
                    physDevSrc->dc_rect.left + src->visrect.left,
                    physDevSrc->dc_rect.top + src->visrect.top,
                    width, height, 0, 0, 1 );
    }
    else  /* color -> color */
    {
        XCopyArea( gdi_display, physDevSrc->drawable, src_pixmap, gc,
                   physDevSrc->dc_rect.left + src->visrect.left,
                   physDevSrc->dc_rect.top + src->visrect.top,
                   width, height, 0, 0 );
    }
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    execute_rop( physDevDst, src_pixmap, gc, &dst->visrect, rop );
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    XFreePixmap( gdi_display, src_pixmap );
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    XFreeGC( gdi_display, gc );
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    return TRUE;
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}
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static void free_heap_bits( struct gdi_image_bits *bits )
{
    HeapFree( GetProcessHeap(), 0, bits->ptr );
}

static void free_ximage_bits( struct gdi_image_bits *bits )
{
    XFree( bits->ptr );
}

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/* only for use on sanitized BITMAPINFO structures */
static inline int get_dib_info_size( const BITMAPINFO *info, UINT coloruse )
{
    if (info->bmiHeader.biCompression == BI_BITFIELDS)
        return sizeof(BITMAPINFOHEADER) + 3 * sizeof(DWORD);
    if (coloruse == DIB_PAL_COLORS)
        return sizeof(BITMAPINFOHEADER) + info->bmiHeader.biClrUsed * sizeof(WORD);
    return FIELD_OFFSET( BITMAPINFO, bmiColors[info->bmiHeader.biClrUsed] );
}

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static inline int get_dib_stride( int width, int bpp )
{
    return ((width * bpp + 31) >> 3) & ~3;
}

static inline int get_dib_image_size( const BITMAPINFO *info )
{
    return get_dib_stride( info->bmiHeader.biWidth, info->bmiHeader.biBitCount )
        * abs( info->bmiHeader.biHeight );
}

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/* store the palette or color mask data in the bitmap info structure */
949
static void set_color_info( const XVisualInfo *vis, BITMAPINFO *info, BOOL has_alpha )
950 951 952
{
    DWORD *colors = (DWORD *)((char *)info + info->bmiHeader.biSize);

953 954 955
    info->bmiHeader.biCompression = BI_RGB;
    info->bmiHeader.biClrUsed = 0;

956 957 958 959
    switch (info->bmiHeader.biBitCount)
    {
    case 4:
    case 8:
960 961 962 963 964 965
    {
        RGBQUAD *rgb = (RGBQUAD *)colors;
        PALETTEENTRY palette[256];
        UINT i, count;

        info->bmiHeader.biClrUsed = 1 << info->bmiHeader.biBitCount;
966
        count = X11DRV_GetSystemPaletteEntries( NULL, 0, info->bmiHeader.biClrUsed, palette );
967 968 969 970 971 972 973 974
        for (i = 0; i < count; i++)
        {
            rgb[i].rgbRed   = palette[i].peRed;
            rgb[i].rgbGreen = palette[i].peGreen;
            rgb[i].rgbBlue  = palette[i].peBlue;
            rgb[i].rgbReserved = 0;
        }
        memset( &rgb[count], 0, (info->bmiHeader.biClrUsed - count) * sizeof(*rgb) );
975
        break;
976
    }
977
    case 16:
978 979 980
        colors[0] = vis->red_mask;
        colors[1] = vis->green_mask;
        colors[2] = vis->blue_mask;
981
        info->bmiHeader.biCompression = BI_BITFIELDS;
982
        break;
983
    case 32:
984 985 986
        colors[0] = vis->red_mask;
        colors[1] = vis->green_mask;
        colors[2] = vis->blue_mask;
987
        if (colors[0] != 0xff0000 || colors[1] != 0x00ff00 || colors[2] != 0x0000ff || !has_alpha)
988
            info->bmiHeader.biCompression = BI_BITFIELDS;
989 990 991 992
        break;
    }
}

993
/* check if the specified color info is suitable for PutImage */
994
static BOOL matching_color_info( const XVisualInfo *vis, const BITMAPINFO *info )
995 996 997 998 999 1000 1001 1002 1003 1004 1005 1006 1007 1008 1009 1010
{
    DWORD *colors = (DWORD *)((char *)info + info->bmiHeader.biSize);

    switch (info->bmiHeader.biBitCount)
    {
    case 1:
        if (info->bmiHeader.biCompression != BI_RGB) return FALSE;
        return !info->bmiHeader.biClrUsed;  /* color map not allowed */
    case 4:
    case 8:
    {
        RGBQUAD *rgb = (RGBQUAD *)colors;
        PALETTEENTRY palette[256];
        UINT i, count;

        if (info->bmiHeader.biCompression != BI_RGB) return FALSE;
1011
        count = X11DRV_GetSystemPaletteEntries( NULL, 0, 1 << info->bmiHeader.biBitCount, palette );
1012 1013 1014 1015 1016 1017 1018 1019 1020 1021 1022
        if (count != info->bmiHeader.biClrUsed) return FALSE;
        for (i = 0; i < count; i++)
        {
            if (rgb[i].rgbRed   != palette[i].peRed ||
                rgb[i].rgbGreen != palette[i].peGreen ||
                rgb[i].rgbBlue  != palette[i].peBlue) return FALSE;
        }
        return TRUE;
    }
    case 16:
        if (info->bmiHeader.biCompression == BI_BITFIELDS)
1023 1024 1025
            return (vis->red_mask == colors[0] &&
                    vis->green_mask == colors[1] &&
                    vis->blue_mask == colors[2]);
1026
        if (info->bmiHeader.biCompression == BI_RGB)
1027
            return (vis->red_mask == 0x7c00 && vis->green_mask == 0x03e0 && vis->blue_mask == 0x001f);
1028 1029 1030
        break;
    case 32:
        if (info->bmiHeader.biCompression == BI_BITFIELDS)
1031 1032 1033
            return (vis->red_mask == colors[0] &&
                    vis->green_mask == colors[1] &&
                    vis->blue_mask == colors[2]);
1034 1035 1036
        /* fall through */
    case 24:
        if (info->bmiHeader.biCompression == BI_RGB)
1037
            return (vis->red_mask == 0xff0000 && vis->green_mask == 0x00ff00 && vis->blue_mask == 0x0000ff);
1038 1039 1040 1041 1042
        break;
    }
    return FALSE;
}

1043
static inline BOOL is_r8g8b8( const XVisualInfo *vis )
1044
{
1045 1046
    const XPixmapFormatValues *format = pixmap_formats[vis->depth];
    return format->bits_per_pixel == 24 && vis->red_mask == 0xff0000 && vis->blue_mask == 0x0000ff;
1047 1048
}

1049
static inline BOOL image_needs_byteswap( XImage *image, BOOL is_r8g8b8, int bit_count )
1050
{
1051 1052 1053 1054 1055
#ifdef WORDS_BIGENDIAN
    static const int client_byte_order = MSBFirst;
#else
    static const int client_byte_order = LSBFirst;
#endif
1056 1057 1058 1059 1060 1061 1062 1063 1064 1065 1066 1067 1068 1069 1070 1071 1072 1073 1074 1075 1076 1077 1078 1079 1080 1081 1082 1083 1084 1085 1086 1087 1088 1089 1090 1091

    switch (bit_count)
    {
    case 1:  return image->bitmap_bit_order != MSBFirst;
    case 4:  return image->byte_order != MSBFirst;
    case 16:
    case 32: return image->byte_order != client_byte_order;
    case 24: return (image->byte_order == MSBFirst) ^ !is_r8g8b8;
    default: return FALSE;
    }
}

/* copy image bits with byte swapping and/or pixel mapping */
static void copy_image_byteswap( BITMAPINFO *info, const unsigned char *src, unsigned char *dst,
                                 int src_stride, int dst_stride, int height,
                                 BOOL byteswap, const int *mapping, unsigned int zeropad_mask )
{
    int x, y, padding_pos = abs(dst_stride) / sizeof(unsigned int) - 1;

    if (!byteswap && !mapping)  /* simply copy */
    {
        if (src != dst)
        {
            for (y = 0; y < height; y++, src += src_stride, dst += dst_stride)
            {
                memcpy( dst, src, src_stride );
                ((unsigned int *)dst)[padding_pos] &= zeropad_mask;
            }
        }
        else if (zeropad_mask != ~0u)  /* only need to clear the padding */
        {
            for (y = 0; y < height; y++, dst += dst_stride)
                ((unsigned int *)dst)[padding_pos] &= zeropad_mask;
        }
        return;
    }
1092 1093 1094 1095

    switch (info->bmiHeader.biBitCount)
    {
    case 1:
1096 1097 1098 1099 1100
        for (y = 0; y < height; y++, src += src_stride, dst += dst_stride)
        {
            for (x = 0; x < src_stride; x++) dst[x] = bit_swap[src[x]];
            ((unsigned int *)dst)[padding_pos] &= zeropad_mask;
        }
1101 1102
        break;
    case 4:
1103 1104 1105 1106 1107 1108 1109 1110 1111 1112 1113 1114 1115 1116 1117 1118 1119 1120 1121 1122 1123 1124 1125
        for (y = 0; y < height; y++, src += src_stride, dst += dst_stride)
        {
            if (mapping)
            {
                if (byteswap)
                    for (x = 0; x < src_stride; x++)
                        dst[x] = (mapping[src[x] & 0x0f] << 4) | mapping[src[x] >> 4];
                else
                    for (x = 0; x < src_stride; x++)
                        dst[x] = mapping[src[x] & 0x0f] | (mapping[src[x] >> 4] << 4);
            }
            else
                for (x = 0; x < src_stride; x++)
                    dst[x] = (src[x] << 4) | (src[x] >> 4);
            ((unsigned int *)dst)[padding_pos] &= zeropad_mask;
        }
        break;
    case 8:
        for (y = 0; y < height; y++, src += src_stride, dst += dst_stride)
        {
            for (x = 0; x < src_stride; x++) dst[x] = mapping[src[x]];
            ((unsigned int *)dst)[padding_pos] &= zeropad_mask;
        }
1126 1127
        break;
    case 16:
1128 1129 1130 1131 1132 1133
        for (y = 0; y < height; y++, src += src_stride, dst += dst_stride)
        {
            for (x = 0; x < info->bmiHeader.biWidth; x++)
                ((USHORT *)dst)[x] = RtlUshortByteSwap( ((const USHORT *)src)[x] );
            ((unsigned int *)dst)[padding_pos] &= zeropad_mask;
        }
1134 1135
        break;
    case 24:
1136 1137 1138 1139 1140 1141 1142 1143 1144 1145 1146
        for (y = 0; y < height; y++, src += src_stride, dst += dst_stride)
        {
            for (x = 0; x < info->bmiHeader.biWidth; x++)
            {
                unsigned char tmp = src[3 * x];
                dst[3 * x]     = src[3 * x + 2];
                dst[3 * x + 1] = src[3 * x + 1];
                dst[3 * x + 2] = tmp;
            }
            ((unsigned int *)dst)[padding_pos] &= zeropad_mask;
        }
1147
        break;
1148 1149 1150 1151
    case 32:
        for (y = 0; y < height; y++, src += src_stride, dst += dst_stride)
            for (x = 0; x < info->bmiHeader.biWidth; x++)
                ((ULONG *)dst)[x] = RtlUlongByteSwap( ((const ULONG *)src)[x] );
1152 1153
        break;
    }
1154 1155 1156 1157 1158 1159 1160 1161 1162 1163 1164
}

/* copy the image bits, fixing up alignment and byte swapping as necessary */
DWORD copy_image_bits( BITMAPINFO *info, BOOL is_r8g8b8, XImage *image,
                       const struct gdi_image_bits *src_bits, struct gdi_image_bits *dst_bits,
                       struct bitblt_coords *coords, const int *mapping, unsigned int zeropad_mask )
{
    BOOL need_byteswap = image_needs_byteswap( image, is_r8g8b8, info->bmiHeader.biBitCount );
    int height = coords->visrect.bottom - coords->visrect.top;
    int width_bytes = image->bytes_per_line;
    unsigned char *src, *dst;
1165

1166 1167 1168 1169 1170 1171
    src = src_bits->ptr;
    if (info->bmiHeader.biHeight > 0)
        src += (info->bmiHeader.biHeight - coords->visrect.bottom) * width_bytes;
    else
        src += coords->visrect.top * width_bytes;

1172 1173
    if ((need_byteswap && !src_bits->is_copy) ||  /* need to swap bytes */
        (zeropad_mask != ~0u && !src_bits->is_copy) ||  /* need to clear padding bytes */
1174
        (mapping && !src_bits->is_copy) ||  /* need to remap pixels */
1175 1176
        (width_bytes & 3) ||  /* need to fixup line alignment */
        (info->bmiHeader.biHeight > 0))  /* need to flip vertically */
1177 1178 1179 1180 1181 1182 1183 1184 1185 1186 1187
    {
        width_bytes = (width_bytes + 3) & ~3;
        info->bmiHeader.biSizeImage = height * width_bytes;
        if (!(dst_bits->ptr = HeapAlloc( GetProcessHeap(), 0, info->bmiHeader.biSizeImage )))
            return ERROR_OUTOFMEMORY;
        dst_bits->is_copy = TRUE;
        dst_bits->free = free_heap_bits;
    }
    else
    {
        /* swap bits in place */
1188
        dst_bits->ptr = src;
1189 1190
        dst_bits->is_copy = src_bits->is_copy;
        dst_bits->free = NULL;
1191
        if (!need_byteswap && zeropad_mask == ~0u && !mapping) return ERROR_SUCCESS;  /* nothing to do */
1192 1193 1194 1195
    }

    dst = dst_bits->ptr;

1196 1197 1198 1199 1200 1201
    if (info->bmiHeader.biHeight > 0)
    {
        dst += (height - 1) * width_bytes;
        width_bytes = -width_bytes;
    }

1202 1203
    copy_image_byteswap( info, src, dst, image->bytes_per_line, width_bytes, height,
                         need_byteswap, mapping, zeropad_mask );
1204 1205 1206
    return ERROR_SUCCESS;
}

1207 1208 1209
/***********************************************************************
 *           X11DRV_PutImage
 */
1210
DWORD X11DRV_PutImage( PHYSDEV dev, HRGN clip, BITMAPINFO *info,
1211 1212
                       const struct gdi_image_bits *bits, struct bitblt_coords *src,
                       struct bitblt_coords *dst, DWORD rop )
1213
{
1214
    X11DRV_PDEVICE *physdev = get_x11drv_dev( dev );
1215
    DWORD ret;
1216
    XImage *image;
1217
    XVisualInfo vis = default_visual;
1218 1219
    struct gdi_image_bits dst_bits;
    const XPixmapFormatValues *format;
1220 1221
    const BYTE *opcode = BITBLT_Opcodes[(rop >> 16) & 0xff];
    const int *mapping = NULL;
1222

1223 1224
    vis.depth = physdev->depth;
    if (physdev->color_shifts)
1225
    {
1226 1227 1228
        vis.red_mask   = physdev->color_shifts->logicalRed.max   << physdev->color_shifts->logicalRed.shift;
        vis.green_mask = physdev->color_shifts->logicalGreen.max << physdev->color_shifts->logicalGreen.shift;
        vis.blue_mask  = physdev->color_shifts->logicalBlue.max  << physdev->color_shifts->logicalBlue.shift;
1229
    }
1230
    format = pixmap_formats[vis.depth];
1231 1232 1233

    if (info->bmiHeader.biPlanes != 1) goto update_format;
    if (info->bmiHeader.biBitCount != format->bits_per_pixel) goto update_format;
1234
    /* FIXME: could try to handle 1-bpp using XCopyPlane */
1235
    if (!matching_color_info( &vis, info )) goto update_format;
1236
    if (!bits) return ERROR_SUCCESS;  /* just querying the format */
1237
    if ((src->width != dst->width) || (src->height != dst->height)) return ERROR_TRANSFORM_NOT_SUPPORTED;
1238

1239
    image = XCreateImage( gdi_display, vis.visual, vis.depth, ZPixmap, 0, NULL,
1240
                          info->bmiHeader.biWidth, src->visrect.bottom - src->visrect.top, 32, 0 );
1241 1242
    if (!image) return ERROR_OUTOFMEMORY;

1243 1244
    if (image->bits_per_pixel == 4 || image->bits_per_pixel == 8)
    {
1245
        if (!opcode[1] && OP_SRCDST(opcode[0]) == OP_ARGS(SRC,DST))
1246 1247 1248
            mapping = X11DRV_PALETTE_PaletteToXPixel;
    }

1249
    ret = copy_image_bits( info, is_r8g8b8(&vis), image, bits, &dst_bits, src, mapping, ~0u );
1250 1251 1252

    if (!ret)
    {
1253
        BOOL restore_region = add_extra_clipping_region( physdev, clip );
1254 1255
        int width = dst->visrect.right - dst->visrect.left;
        int height = dst->visrect.bottom - dst->visrect.top;
1256

1257
        image->data = dst_bits.ptr;
1258

1259 1260
        /* optimization for single-op ROPs */
        if (!opcode[1] && OP_SRCDST(opcode[0]) == OP_ARGS(SRC,DST))
1261
        {
1262 1263 1264 1265
            XSetFunction( gdi_display, physdev->gc, OP_ROP(*opcode) );
            XPutImage( gdi_display, physdev->drawable, physdev->gc, image, src->visrect.left, 0,
                       physdev->dc_rect.left + dst->visrect.left,
                       physdev->dc_rect.top + dst->visrect.top, width, height );
1266 1267 1268
        }
        else
        {
1269 1270
            GC gc = XCreateGC( gdi_display, physdev->drawable, 0, NULL );
            Pixmap src_pixmap = XCreatePixmap( gdi_display, root_window, width, height, vis.depth );
1271

1272 1273 1274
            XSetSubwindowMode( gdi_display, gc, IncludeInferiors );
            XSetGraphicsExposures( gdi_display, gc, False );
            XPutImage( gdi_display, src_pixmap, gc, image, src->visrect.left, 0, 0, 0, width, height );
1275

1276 1277 1278 1279
            execute_rop( physdev, src_pixmap, gc, &dst->visrect, rop );

            XFreePixmap( gdi_display, src_pixmap );
            XFreeGC( gdi_display, gc );
1280
        }
1281 1282 1283

        if (restore_region) restore_clipping_region( physdev );
        add_device_bounds( physdev, &dst->visrect );
1284 1285 1286 1287 1288 1289 1290 1291 1292 1293 1294
        image->data = NULL;
    }

    XDestroyImage( image );
    if (dst_bits.free) dst_bits.free( &dst_bits );
    return ret;

update_format:
    info->bmiHeader.biPlanes   = 1;
    info->bmiHeader.biBitCount = format->bits_per_pixel;
    if (info->bmiHeader.biHeight > 0) info->bmiHeader.biHeight = -info->bmiHeader.biHeight;
1295
    set_color_info( &vis, info, FALSE );
1296 1297 1298
    return ERROR_BAD_FORMAT;
}

1299 1300 1301
/***********************************************************************
 *           X11DRV_GetImage
 */
1302
DWORD X11DRV_GetImage( PHYSDEV dev, BITMAPINFO *info,
1303
                       struct gdi_image_bits *bits, struct bitblt_coords *src )
1304
{
1305
    X11DRV_PDEVICE *physdev = get_x11drv_dev( dev );
1306 1307
    DWORD ret = ERROR_SUCCESS;
    XImage *image;
1308
    XVisualInfo vis = default_visual;
1309 1310
    UINT align, x, y, width, height;
    struct gdi_image_bits src_bits;
1311
    const XPixmapFormatValues *format;
1312
    const int *mapping = NULL;
1313

1314 1315
    vis.depth = physdev->depth;
    if (physdev->color_shifts)
1316
    {
1317 1318 1319
        vis.red_mask   = physdev->color_shifts->logicalRed.max   << physdev->color_shifts->logicalRed.shift;
        vis.green_mask = physdev->color_shifts->logicalGreen.max << physdev->color_shifts->logicalGreen.shift;
        vis.blue_mask  = physdev->color_shifts->logicalBlue.max  << physdev->color_shifts->logicalBlue.shift;
1320
    }
1321
    format = pixmap_formats[vis.depth];
1322 1323 1324 1325 1326

    /* align start and width to 32-bit boundary */
    switch (format->bits_per_pixel)
    {
    case 1:  align = 32; break;
1327 1328
    case 4:  align = 8;  mapping = X11DRV_PALETTE_XPixelToPalette; break;
    case 8:  align = 4;  mapping = X11DRV_PALETTE_XPixelToPalette; break;
1329 1330 1331 1332
    case 16: align = 2;  break;
    case 24: align = 4;  break;
    case 32: align = 1;  break;
    default:
1333
        FIXME( "depth %u bpp %u not supported yet\n", vis.depth, format->bits_per_pixel );
1334 1335
        return ERROR_BAD_FORMAT;
    }
1336 1337 1338 1339 1340 1341 1342

    info->bmiHeader.biSize          = sizeof(info->bmiHeader);
    info->bmiHeader.biPlanes        = 1;
    info->bmiHeader.biBitCount      = format->bits_per_pixel;
    info->bmiHeader.biXPelsPerMeter = 0;
    info->bmiHeader.biYPelsPerMeter = 0;
    info->bmiHeader.biClrImportant  = 0;
1343
    set_color_info( &vis, info, FALSE );
1344 1345 1346

    if (!bits) return ERROR_SUCCESS;  /* just querying the color information */

1347
    x = src->visrect.left & ~(align - 1);
1348 1349 1350
    y = src->visrect.top;
    width = src->visrect.right - x;
    height = src->visrect.bottom - src->visrect.top;
1351
    if (format->scanline_pad != 32) width = (width + (align - 1)) & ~(align - 1);
1352 1353 1354 1355
    /* make the source rectangle relative to the returned bits */
    src->x -= x;
    src->y -= y;
    OffsetRect( &src->visrect, -x, -y );
1356

1357 1358 1359 1360 1361
    X11DRV_expect_error( gdi_display, XGetImage_handler, NULL );
    image = XGetImage( gdi_display, physdev->drawable,
                       physdev->dc_rect.left + x, physdev->dc_rect.top + y,
                       width, height, AllPlanes, ZPixmap );
    if (X11DRV_check_error())
1362
    {
1363
        /* use a temporary pixmap to avoid the BadMatch error */
1364 1365
        Pixmap pixmap = XCreatePixmap( gdi_display, root_window, width, height, vis.depth );
        GC gc = XCreateGC( gdi_display, pixmap, 0, NULL );
1366

1367 1368
        XSetGraphicsExposures( gdi_display, gc, False );
        XCopyArea( gdi_display, physdev->drawable, pixmap, gc,
1369 1370 1371
                   physdev->dc_rect.left + x, physdev->dc_rect.top + y, width, height, 0, 0 );
        image = XGetImage( gdi_display, pixmap, 0, 0, width, height, AllPlanes, ZPixmap );
        XFreePixmap( gdi_display, pixmap );
1372
        XFreeGC( gdi_display, gc );
1373
    }
1374

1375 1376
    if (!image) return ERROR_OUTOFMEMORY;

1377 1378 1379
    info->bmiHeader.biWidth     = width;
    info->bmiHeader.biHeight    = -height;
    info->bmiHeader.biSizeImage = height * image->bytes_per_line;
1380

1381 1382
    src_bits.ptr     = image->data;
    src_bits.is_copy = TRUE;
1383
    ret = copy_image_bits( info, is_r8g8b8(&vis), image, &src_bits, bits, src, mapping,
1384
                           zeropad_masks[(width * image->bits_per_pixel) & 31] );
1385 1386

    if (!ret && bits->ptr == image->data)
1387 1388 1389 1390 1391 1392 1393
    {
        bits->free = free_ximage_bits;
        image->data = NULL;
    }
    XDestroyImage( image );
    return ret;
}
1394 1395


1396 1397 1398 1399 1400 1401 1402 1403 1404 1405
/***********************************************************************
 *           put_pixmap_image
 *
 * Simplified equivalent of X11DRV_PutImage that writes directly to a pixmap.
 */
static DWORD put_pixmap_image( Pixmap pixmap, const XVisualInfo *vis,
                               BITMAPINFO *info, const struct gdi_image_bits *bits )
{
    DWORD ret;
    XImage *image;
1406
    GC gc;
1407 1408 1409 1410 1411 1412 1413 1414 1415 1416 1417 1418 1419 1420 1421 1422 1423 1424
    struct bitblt_coords coords;
    struct gdi_image_bits dst_bits;
    const XPixmapFormatValues *format = pixmap_formats[vis->depth];
    const int *mapping = NULL;

    if (!format) return ERROR_INVALID_PARAMETER;
    if (info->bmiHeader.biPlanes != 1) goto update_format;
    if (info->bmiHeader.biBitCount != format->bits_per_pixel) goto update_format;
    /* FIXME: could try to handle 1-bpp using XCopyPlane */
    if (!matching_color_info( vis, info )) goto update_format;
    if (!bits) return ERROR_SUCCESS;  /* just querying the format */

    coords.x = 0;
    coords.y = 0;
    coords.width = info->bmiHeader.biWidth;
    coords.height = abs( info->bmiHeader.biHeight );
    SetRect( &coords.visrect, 0, 0, coords.width, coords.height );

1425
    image = XCreateImage( gdi_display, vis->visual, vis->depth, ZPixmap, 0, NULL,
1426 1427 1428 1429 1430 1431 1432 1433 1434
                          coords.width, coords.height, 32, 0 );
    if (!image) return ERROR_OUTOFMEMORY;

    if (image->bits_per_pixel == 4 || image->bits_per_pixel == 8)
        mapping = X11DRV_PALETTE_PaletteToXPixel;

    if (!(ret = copy_image_bits( info, is_r8g8b8(vis), image, bits, &dst_bits, &coords, mapping, ~0u )))
    {
        image->data = dst_bits.ptr;
1435 1436 1437
        gc = XCreateGC( gdi_display, pixmap, 0, NULL );
        XPutImage( gdi_display, pixmap, gc, image, 0, 0, 0, 0, coords.width, coords.height );
        XFreeGC( gdi_display, gc );
1438
        image->data = NULL;
1439
        if (dst_bits.free) dst_bits.free( &dst_bits );
1440 1441 1442 1443 1444 1445 1446 1447 1448
    }

    XDestroyImage( image );
    return ret;

update_format:
    info->bmiHeader.biPlanes   = 1;
    info->bmiHeader.biBitCount = format->bits_per_pixel;
    if (info->bmiHeader.biHeight > 0) info->bmiHeader.biHeight = -info->bmiHeader.biHeight;
1449
    set_color_info( vis, info, FALSE );
1450 1451 1452 1453 1454 1455 1456 1457 1458 1459 1460 1461 1462 1463 1464 1465 1466 1467 1468 1469 1470 1471 1472 1473 1474 1475 1476 1477 1478 1479 1480 1481 1482 1483 1484 1485 1486 1487 1488 1489 1490 1491 1492 1493 1494 1495 1496 1497 1498 1499 1500 1501 1502 1503
    return ERROR_BAD_FORMAT;
}


/***********************************************************************
 *           create_pixmap_from_image
 */
Pixmap create_pixmap_from_image( HDC hdc, const XVisualInfo *vis, const BITMAPINFO *info,
                                 const struct gdi_image_bits *bits, UINT coloruse )
{
    static const RGBQUAD default_colortable[2] = { { 0x00, 0x00, 0x00 }, { 0xff, 0xff, 0xff } };
    char dst_buffer[FIELD_OFFSET( BITMAPINFO, bmiColors[256] )];
    char src_buffer[FIELD_OFFSET( BITMAPINFO, bmiColors[256] )];
    BITMAPINFO *dst_info = (BITMAPINFO *)dst_buffer;
    BITMAPINFO *src_info = (BITMAPINFO *)src_buffer;
    struct gdi_image_bits dst_bits;
    Pixmap pixmap;
    DWORD err;
    HBITMAP dib;

    pixmap = XCreatePixmap( gdi_display, root_window,
                            info->bmiHeader.biWidth, abs(info->bmiHeader.biHeight), vis->depth );
    if (!pixmap) return 0;

    memcpy( src_info, info, get_dib_info_size( info, coloruse ));
    memcpy( dst_info, info, get_dib_info_size( info, coloruse ));

    if (coloruse == DIB_PAL_COLORS ||
        (err = put_pixmap_image( pixmap, vis, dst_info, bits )) == ERROR_BAD_FORMAT)
    {
        if (dst_info->bmiHeader.biBitCount == 1)  /* set a default color table for 1-bpp */
            memcpy( dst_info->bmiColors, default_colortable, sizeof(default_colortable) );
        dib = CreateDIBSection( hdc, dst_info, coloruse, &dst_bits.ptr, 0, 0 );
        if (dib)
        {
            if (src_info->bmiHeader.biBitCount == 1 && !src_info->bmiHeader.biClrUsed)
                memcpy( src_info->bmiColors, default_colortable, sizeof(default_colortable) );
            SetDIBits( hdc, dib, 0, abs(info->bmiHeader.biHeight), bits->ptr, src_info, coloruse );
            dst_bits.free = NULL;
            dst_bits.is_copy = TRUE;
            err = put_pixmap_image( pixmap, vis, dst_info, &dst_bits );
            DeleteObject( dib );
        }
        else err = ERROR_OUTOFMEMORY;
    }

    if (!err) return pixmap;

    XFreePixmap( gdi_display, pixmap );
    return 0;

}


1504 1505 1506 1507 1508 1509 1510 1511 1512 1513 1514 1515 1516 1517 1518 1519 1520 1521 1522 1523 1524 1525 1526 1527 1528
/***********************************************************************
 *           get_pixmap_image
 *
 * Equivalent of X11DRV_GetImage that reads directly from a pixmap.
 */
DWORD get_pixmap_image( Pixmap pixmap, int width, int height, const XVisualInfo *vis,
                        BITMAPINFO *info, struct gdi_image_bits *bits )
{
    DWORD ret = ERROR_SUCCESS;
    XImage *image;
    struct gdi_image_bits src_bits;
    struct bitblt_coords coords;
    const XPixmapFormatValues *format = pixmap_formats[vis->depth];
    const int *mapping = NULL;

    if (!format) return ERROR_INVALID_PARAMETER;

    info->bmiHeader.biSize          = sizeof(info->bmiHeader);
    info->bmiHeader.biWidth         = width;
    info->bmiHeader.biHeight        = -height;
    info->bmiHeader.biPlanes        = 1;
    info->bmiHeader.biBitCount      = format->bits_per_pixel;
    info->bmiHeader.biXPelsPerMeter = 0;
    info->bmiHeader.biYPelsPerMeter = 0;
    info->bmiHeader.biClrImportant  = 0;
1529
    set_color_info( vis, info, FALSE );
1530 1531 1532 1533 1534 1535 1536 1537 1538 1539 1540 1541 1542 1543 1544 1545 1546 1547 1548 1549 1550 1551 1552 1553 1554 1555 1556

    if (!bits) return ERROR_SUCCESS;  /* just querying the color information */

    coords.x = 0;
    coords.y = 0;
    coords.width = width;
    coords.height = height;
    SetRect( &coords.visrect, 0, 0, width, height );

    image = XGetImage( gdi_display, pixmap, 0, 0, width, height, AllPlanes, ZPixmap );
    if (!image) return ERROR_OUTOFMEMORY;

    info->bmiHeader.biSizeImage = height * image->bytes_per_line;

    src_bits.ptr     = image->data;
    src_bits.is_copy = TRUE;
    ret = copy_image_bits( info, is_r8g8b8(vis), image, &src_bits, bits, &coords, mapping,
                           zeropad_masks[(width * image->bits_per_pixel) & 31] );

    if (!ret && bits->ptr == image->data)
    {
        bits->free = free_ximage_bits;
        image->data = NULL;
    }
    XDestroyImage( image );
    return ret;
}
1557 1558 1559 1560 1561 1562 1563 1564 1565


struct x11drv_window_surface
{
    struct window_surface header;
    Window                window;
    GC                    gc;
    XImage               *image;
    RECT                  bounds;
1566
    BOOL                  byteswap;
1567
    BOOL                  is_argb;
1568
    COLORREF              color_key;
1569
    HRGN                  region;
1570
    void                 *bits;
1571 1572 1573
#ifdef HAVE_LIBXXSHM
    XShmSegmentInfo       shminfo;
#endif
1574 1575 1576 1577 1578 1579 1580 1581 1582
    CRITICAL_SECTION      crit;
    BITMAPINFO            info;   /* variable size, must be last */
};

static struct x11drv_window_surface *get_x11_surface( struct window_surface *surface )
{
    return (struct x11drv_window_surface *)surface;
}

1583 1584 1585 1586 1587 1588 1589 1590 1591 1592 1593 1594 1595 1596 1597 1598 1599 1600 1601 1602 1603 1604 1605 1606 1607 1608 1609 1610 1611 1612 1613 1614 1615 1616 1617 1618 1619 1620 1621 1622 1623 1624
static inline UINT get_color_component( UINT color, UINT mask )
{
    int shift;
    for (shift = 0; !(mask & 1); shift++) mask >>= 1;
    return (color * mask / 255) << shift;
}

static inline void flush_rgn_data( HRGN rgn, RGNDATA *data )
{
    HRGN tmp = ExtCreateRegion( NULL, data->rdh.dwSize + data->rdh.nRgnSize, data );
    CombineRgn( rgn, rgn, tmp, RGN_OR );
    DeleteObject( tmp );
    data->rdh.nCount = 0;
}

static inline void add_row( HRGN rgn, RGNDATA *data, int x, int y, int len )
{
    RECT *rect = (RECT *)data->Buffer + data->rdh.nCount;

    if (len <= 0) return;
    rect->left   = x;
    rect->top    = y;
    rect->right  = x + len;
    rect->bottom = y + 1;
    data->rdh.nCount++;
    if (data->rdh.nCount * sizeof(RECT) > data->rdh.nRgnSize - sizeof(RECT))
        flush_rgn_data( rgn, data );
}

/***********************************************************************
 *           update_surface_region
 */
static void update_surface_region( struct x11drv_window_surface *surface )
{
#ifdef HAVE_LIBXSHAPE
    char buffer[4096];
    RGNDATA *data = (RGNDATA *)buffer;
    BITMAPINFO *info = &surface->info;
    UINT *masks = (UINT *)info->bmiColors;
    int x, y, start, width;
    HRGN rgn;

1625 1626
    if (!shape_layered_windows) return;

1627
    if (!surface->is_argb && surface->color_key == CLR_INVALID)
1628 1629 1630 1631 1632 1633 1634 1635 1636 1637 1638 1639 1640 1641 1642 1643 1644
    {
        XShapeCombineMask( gdi_display, surface->window, ShapeBounding, 0, 0, None, ShapeSet );
        return;
    }

    data->rdh.dwSize = sizeof(data->rdh);
    data->rdh.iType  = RDH_RECTANGLES;
    data->rdh.nCount = 0;
    data->rdh.nRgnSize = sizeof(buffer) - sizeof(data->rdh);

    rgn = CreateRectRgn( 0, 0, 0, 0 );
    width = surface->header.rect.right - surface->header.rect.left;

    switch (info->bmiHeader.biBitCount)
    {
    case 16:
    {
1645
        WORD *bits = surface->bits;
1646 1647 1648 1649 1650 1651 1652 1653 1654 1655 1656 1657 1658 1659 1660 1661 1662 1663
        int stride = (width + 1) & ~1;
        UINT mask = masks[0] | masks[1] | masks[2];

        for (y = surface->header.rect.top; y < surface->header.rect.bottom; y++, bits += stride)
        {
            x = 0;
            while (x < width)
            {
                while (x < width && (bits[x] & mask) == surface->color_key) x++;
                start = x;
                while (x < width && (bits[x] & mask) != surface->color_key) x++;
                add_row( rgn, data, surface->header.rect.left + start, y, x - start );
            }
        }
        break;
    }
    case 24:
    {
1664
        BYTE *bits = surface->bits;
1665 1666 1667 1668 1669 1670 1671 1672 1673 1674 1675 1676 1677 1678 1679 1680 1681 1682 1683 1684 1685 1686 1687 1688 1689
        int stride = (width * 3 + 3) & ~3;

        for (y = surface->header.rect.top; y < surface->header.rect.bottom; y++, bits += stride)
        {
            x = 0;
            while (x < width)
            {
                while (x < width &&
                       (bits[x * 3] == GetBValue(surface->color_key)) &&
                       (bits[x * 3 + 1] == GetGValue(surface->color_key)) &&
                       (bits[x * 3 + 2] == GetRValue(surface->color_key)))
                    x++;
                start = x;
                while (x < width &&
                       ((bits[x * 3] != GetBValue(surface->color_key)) ||
                        (bits[x * 3 + 1] != GetGValue(surface->color_key)) ||
                        (bits[x * 3 + 2] != GetRValue(surface->color_key))))
                    x++;
                add_row( rgn, data, surface->header.rect.left + start, y, x - start );
            }
        }
        break;
    }
    case 32:
    {
1690
        DWORD *bits = surface->bits;
1691

1692
        if (info->bmiHeader.biCompression == BI_RGB)
1693
        {
1694
            for (y = surface->header.rect.top; y < surface->header.rect.bottom; y++, bits += width)
1695
            {
1696 1697 1698 1699 1700 1701 1702 1703
                x = 0;
                while (x < width)
                {
                    while (x < width &&
                           ((bits[x] & 0xffffff) == surface->color_key ||
                            (surface->is_argb && !(bits[x] & 0xff000000)))) x++;
                    start = x;
                    while (x < width &&
1704 1705
                           !((bits[x] & 0xffffff) == surface->color_key ||
                             (surface->is_argb && !(bits[x] & 0xff000000)))) x++;
1706 1707 1708 1709 1710 1711 1712 1713 1714 1715 1716 1717 1718 1719 1720 1721 1722
                    add_row( rgn, data, surface->header.rect.left + start, y, x - start );
                }
            }
        }
        else
        {
            UINT mask = masks[0] | masks[1] | masks[2];
            for (y = surface->header.rect.top; y < surface->header.rect.bottom; y++, bits += width)
            {
                x = 0;
                while (x < width)
                {
                    while (x < width && (bits[x] & mask) == surface->color_key) x++;
                    start = x;
                    while (x < width && (bits[x] & mask) != surface->color_key) x++;
                    add_row( rgn, data, surface->header.rect.left + start, y, x - start );
                }
1723 1724 1725 1726 1727 1728 1729 1730 1731 1732 1733 1734 1735 1736 1737 1738 1739 1740 1741 1742 1743 1744 1745 1746 1747 1748 1749 1750 1751 1752 1753 1754 1755 1756 1757 1758 1759 1760 1761 1762 1763 1764 1765 1766 1767 1768
            }
        }
        break;
    }
    default:
        assert(0);
    }

    if (data->rdh.nCount) flush_rgn_data( rgn, data );

    if ((data = X11DRV_GetRegionData( rgn, 0 )))
    {
        XShapeCombineRectangles( gdi_display, surface->window, ShapeBounding, 0, 0,
                                 (XRectangle *)data->Buffer, data->rdh.nCount, ShapeSet, YXBanded );
        HeapFree( GetProcessHeap(), 0, data );
    }

    DeleteObject( rgn );
#endif
}

/***********************************************************************
 *           set_color_key
 */
static void set_color_key( struct x11drv_window_surface *surface, COLORREF key )
{
    UINT *masks = (UINT *)surface->info.bmiColors;

    if (key == CLR_INVALID)
        surface->color_key = CLR_INVALID;
    else if (surface->info.bmiHeader.biBitCount <= 8)
        surface->color_key = CLR_INVALID;
    else if (key & (1 << 24))  /* PALETTEINDEX */
        surface->color_key = 0;
    else if (key >> 16 == 0x10ff)  /* DIBINDEX */
        surface->color_key = 0;
    else if (surface->info.bmiHeader.biBitCount == 24)
        surface->color_key = key;
    else if (surface->info.bmiHeader.biCompression == BI_RGB)
        surface->color_key = (GetRValue(key) << 16) | (GetGValue(key) << 8) | GetBValue(key);
    else
        surface->color_key = get_color_component( GetRValue(key), masks[0] ) |
                             get_color_component( GetGValue(key), masks[1] ) |
                             get_color_component( GetBValue(key), masks[2] );
}

1769 1770 1771 1772 1773 1774 1775 1776 1777 1778 1779 1780 1781 1782 1783 1784 1785 1786 1787 1788 1789 1790 1791 1792 1793 1794 1795 1796 1797 1798 1799 1800 1801 1802 1803 1804 1805 1806 1807 1808 1809 1810 1811 1812
#ifdef HAVE_LIBXXSHM
static int xshm_error_handler( Display *display, XErrorEvent *event, void *arg )
{
    return 1;  /* FIXME: should check event contents */
}

static XImage *create_shm_image( const XVisualInfo *vis, int width, int height, XShmSegmentInfo *shminfo )
{
    XImage *image;

    shminfo->shmid = -1;
    image = XShmCreateImage( gdi_display, vis->visual, vis->depth, ZPixmap, NULL, shminfo, width, height );
    if (!image) return NULL;
    if (image->bytes_per_line & 3) goto failed;  /* we need 32-bit alignment */

    shminfo->shmid = shmget( IPC_PRIVATE, image->bytes_per_line * height, IPC_CREAT | 0700 );
    if (shminfo->shmid == -1) goto failed;

    shminfo->shmaddr = shmat( shminfo->shmid, 0, 0 );
    if (shminfo->shmaddr != (char *)-1)
    {
        BOOL ok;

        shminfo->readOnly = True;
        X11DRV_expect_error( gdi_display, xshm_error_handler, NULL );
        ok = (XShmAttach( gdi_display, shminfo ) != 0);
        XSync( gdi_display, False );
        if (!X11DRV_check_error() && ok)
        {
            image->data = shminfo->shmaddr;
            shmctl( shminfo->shmid, IPC_RMID, 0 );
            return image;
        }
        shmdt( shminfo->shmaddr );
    }
    shmctl( shminfo->shmid, IPC_RMID, 0 );
    shminfo->shmid = -1;

failed:
    XDestroyImage( image );
    return NULL;
}
#endif /* HAVE_LIBXXSHM */

1813 1814 1815 1816 1817 1818 1819 1820 1821 1822 1823 1824 1825 1826 1827 1828 1829 1830 1831 1832 1833 1834 1835 1836 1837 1838 1839 1840
/***********************************************************************
 *           x11drv_surface_lock
 */
static void x11drv_surface_lock( struct window_surface *window_surface )
{
    struct x11drv_window_surface *surface = get_x11_surface( window_surface );

    EnterCriticalSection( &surface->crit );
}

/***********************************************************************
 *           x11drv_surface_unlock
 */
static void x11drv_surface_unlock( struct window_surface *window_surface )
{
    struct x11drv_window_surface *surface = get_x11_surface( window_surface );

    LeaveCriticalSection( &surface->crit );
}

/***********************************************************************
 *           x11drv_surface_get_bitmap_info
 */
static void *x11drv_surface_get_bitmap_info( struct window_surface *window_surface, BITMAPINFO *info )
{
    struct x11drv_window_surface *surface = get_x11_surface( window_surface );

    memcpy( info, &surface->info, get_dib_info_size( &surface->info, DIB_RGB_COLORS ));
1841
    return surface->bits;
1842 1843 1844 1845 1846 1847 1848 1849 1850 1851 1852 1853
}

/***********************************************************************
 *           x11drv_surface_get_bounds
 */
static RECT *x11drv_surface_get_bounds( struct window_surface *window_surface )
{
    struct x11drv_window_surface *surface = get_x11_surface( window_surface );

    return &surface->bounds;
}

1854 1855 1856 1857 1858 1859 1860 1861 1862 1863
/***********************************************************************
 *           x11drv_surface_set_region
 */
static void x11drv_surface_set_region( struct window_surface *window_surface, HRGN region )
{
    RGNDATA *data;
    struct x11drv_window_surface *surface = get_x11_surface( window_surface );

    TRACE( "updating surface %p with %p\n", surface, region );

1864
    window_surface->funcs->lock( window_surface );
1865 1866
    if (!region)
    {
1867 1868
        if (surface->region) DeleteObject( surface->region );
        surface->region = 0;
1869 1870
        XSetClipMask( gdi_display, surface->gc, None );
    }
1871
    else
1872
    {
1873 1874 1875 1876 1877 1878 1879 1880
        if (!surface->region) surface->region = CreateRectRgn( 0, 0, 0, 0 );
        CombineRgn( surface->region, region, 0, RGN_COPY );
        if ((data = X11DRV_GetRegionData( surface->region, 0 )))
        {
            XSetClipRectangles( gdi_display, surface->gc, 0, 0,
                                (XRectangle *)data->Buffer, data->rdh.nCount, YXBanded );
            HeapFree( GetProcessHeap(), 0, data );
        }
1881
    }
1882
    window_surface->funcs->unlock( window_surface );
1883 1884
}

1885 1886 1887 1888 1889 1890
/***********************************************************************
 *           x11drv_surface_flush
 */
static void x11drv_surface_flush( struct window_surface *window_surface )
{
    struct x11drv_window_surface *surface = get_x11_surface( window_surface );
1891 1892
    unsigned char *src = surface->bits;
    unsigned char *dst = (unsigned char *)surface->image->data;
1893 1894 1895 1896 1897 1898 1899 1900 1901 1902 1903 1904
    struct bitblt_coords coords;

    window_surface->funcs->lock( window_surface );
    coords.x = 0;
    coords.y = 0;
    coords.width  = surface->header.rect.right - surface->header.rect.left;
    coords.height = surface->header.rect.bottom - surface->header.rect.top;
    SetRect( &coords.visrect, 0, 0, coords.width, coords.height );
    if (IntersectRect( &coords.visrect, &coords.visrect, &surface->bounds ))
    {
        TRACE( "flushing %p %dx%d bounds %s bits %p\n",
               surface, coords.width, coords.height,
1905
               wine_dbgstr_rect( &surface->bounds ), surface->bits );
1906

1907
        if (surface->is_argb || surface->color_key != CLR_INVALID) update_surface_region( surface );
1908

1909
        if (src != dst)
1910
        {
1911 1912 1913 1914 1915 1916 1917 1918 1919 1920 1921
            const int *mapping = NULL;
            int width_bytes = surface->image->bytes_per_line;

            if (surface->image->bits_per_pixel == 4 || surface->image->bits_per_pixel == 8)
                mapping = X11DRV_PALETTE_PaletteToXPixel;

            src += coords.visrect.top * width_bytes;
            dst += coords.visrect.top * width_bytes;
            copy_image_byteswap( &surface->info, src, dst, width_bytes, width_bytes,
                                 coords.visrect.bottom - coords.visrect.top,
                                 surface->byteswap, mapping, ~0u );
1922 1923
        }

1924 1925 1926 1927 1928 1929 1930 1931 1932 1933
#ifdef HAVE_LIBXXSHM
        if (surface->shminfo.shmid != -1)
            XShmPutImage( gdi_display, surface->window, surface->gc, surface->image,
                          coords.visrect.left, coords.visrect.top,
                          surface->header.rect.left + coords.visrect.left,
                          surface->header.rect.top + coords.visrect.top,
                          coords.visrect.right - coords.visrect.left,
                          coords.visrect.bottom - coords.visrect.top, False );
        else
#endif
1934 1935 1936 1937 1938 1939
        XPutImage( gdi_display, surface->window, surface->gc, surface->image,
                   coords.visrect.left, coords.visrect.top,
                   surface->header.rect.left + coords.visrect.left,
                   surface->header.rect.top + coords.visrect.top,
                   coords.visrect.right - coords.visrect.left,
                   coords.visrect.bottom - coords.visrect.top );
1940
        XFlush( gdi_display );
1941 1942 1943 1944 1945 1946 1947 1948 1949 1950 1951 1952
    }
    reset_bounds( &surface->bounds );
    window_surface->funcs->unlock( window_surface );
}

/***********************************************************************
 *           x11drv_surface_destroy
 */
static void x11drv_surface_destroy( struct window_surface *window_surface )
{
    struct x11drv_window_surface *surface = get_x11_surface( window_surface );

1953
    TRACE( "freeing %p bits %p\n", surface, surface->bits );
1954
    if (surface->gc) XFreeGC( gdi_display, surface->gc );
1955 1956 1957
    if (surface->image)
    {
        if (surface->image->data != surface->bits) HeapFree( GetProcessHeap(), 0, surface->bits );
1958 1959 1960 1961 1962 1963 1964 1965
#ifdef HAVE_LIBXXSHM
        if (surface->shminfo.shmid != -1)
        {
            XShmDetach( gdi_display, &surface->shminfo );
            shmdt( surface->shminfo.shmaddr );
        }
        else
#endif
1966 1967 1968 1969
        HeapFree( GetProcessHeap(), 0, surface->image->data );
        surface->image->data = NULL;
        XDestroyImage( surface->image );
    }
1970 1971
    surface->crit.DebugInfo->Spare[0] = 0;
    DeleteCriticalSection( &surface->crit );
1972
    if (surface->region) DeleteObject( surface->region );
1973 1974 1975 1976 1977 1978 1979 1980 1981
    HeapFree( GetProcessHeap(), 0, surface );
}

static const struct window_surface_funcs x11drv_surface_funcs =
{
    x11drv_surface_lock,
    x11drv_surface_unlock,
    x11drv_surface_get_bitmap_info,
    x11drv_surface_get_bounds,
1982
    x11drv_surface_set_region,
1983 1984 1985 1986 1987 1988 1989
    x11drv_surface_flush,
    x11drv_surface_destroy
};

/***********************************************************************
 *           create_surface
 */
1990
struct window_surface *create_surface( Window window, const XVisualInfo *vis, const RECT *rect,
1991
                                       COLORREF color_key, BOOL use_alpha )
1992 1993 1994 1995 1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006
{
    const XPixmapFormatValues *format = pixmap_formats[vis->depth];
    struct x11drv_window_surface *surface;
    int width = rect->right - rect->left, height = rect->bottom - rect->top;
    int colors = format->bits_per_pixel <= 8 ? 1 << format->bits_per_pixel : 3;

    surface = HeapAlloc( GetProcessHeap(), HEAP_ZERO_MEMORY,
                         FIELD_OFFSET( struct x11drv_window_surface, info.bmiColors[colors] ));
    if (!surface) return NULL;
    surface->info.bmiHeader.biSize        = sizeof(surface->info.bmiHeader);
    surface->info.bmiHeader.biWidth       = width;
    surface->info.bmiHeader.biHeight      = -height; /* top-down */
    surface->info.bmiHeader.biPlanes      = 1;
    surface->info.bmiHeader.biBitCount    = format->bits_per_pixel;
    surface->info.bmiHeader.biSizeImage   = get_dib_image_size( &surface->info );
2007
    set_color_info( vis, &surface->info, use_alpha );
2008 2009 2010 2011 2012 2013 2014 2015

    InitializeCriticalSection( &surface->crit );
    surface->crit.DebugInfo->Spare[0] = (DWORD_PTR)(__FILE__ ": surface");

    surface->header.funcs = &x11drv_surface_funcs;
    surface->header.rect  = *rect;
    surface->header.ref   = 1;
    surface->window = window;
2016
    surface->is_argb = (use_alpha && vis->depth == 32 && surface->info.bmiHeader.biCompression == BI_RGB);
2017
    set_color_key( surface, color_key );
2018 2019
    reset_bounds( &surface->bounds );

2020 2021 2022 2023 2024 2025 2026 2027 2028 2029 2030
#ifdef HAVE_LIBXXSHM
    surface->image = create_shm_image( vis, width, height, &surface->shminfo );
    if (!surface->image)
#endif
    {
        surface->image = XCreateImage( gdi_display, vis->visual, vis->depth, ZPixmap, 0, NULL,
                                       width, height, 32, 0 );
        if (!surface->image) goto failed;
        surface->image->data = HeapAlloc( GetProcessHeap(), 0, surface->info.bmiHeader.biSizeImage );
        if (!surface->image->data) goto failed;
    }
2031

2032
    surface->gc = XCreateGC( gdi_display, window, 0, NULL );
2033
    XSetSubwindowMode( gdi_display, surface->gc, IncludeInferiors );
2034 2035 2036 2037 2038 2039 2040 2041 2042 2043
    surface->byteswap = image_needs_byteswap( surface->image, is_r8g8b8(vis), format->bits_per_pixel );

    if (surface->byteswap || format->bits_per_pixel == 4 || format->bits_per_pixel == 8)
    {
        /* allocate separate surface bits if byte swapping or palette mapping is required */
        if (!(surface->bits  = HeapAlloc( GetProcessHeap(), HEAP_ZERO_MEMORY,
                                          surface->info.bmiHeader.biSizeImage )))
            goto failed;
    }
    else surface->bits = surface->image->data;
2044

2045 2046 2047
    TRACE( "created %p for %lx %s bits %p-%p image %p\n", surface, window, wine_dbgstr_rect(rect),
           surface->bits, (char *)surface->bits + surface->info.bmiHeader.biSizeImage,
           surface->image->data );
2048 2049 2050 2051 2052 2053 2054

    return &surface->header;

failed:
    x11drv_surface_destroy( &surface->header );
    return NULL;
}
2055 2056 2057 2058 2059 2060 2061 2062 2063

/***********************************************************************
 *           set_surface_color_key
 */
void set_surface_color_key( struct window_surface *window_surface, COLORREF color_key )
{
    struct x11drv_window_surface *surface = get_x11_surface( window_surface );
    COLORREF prev;

2064 2065
    if (window_surface->funcs != &x11drv_surface_funcs) return;  /* we may get the null surface */

2066 2067 2068 2069 2070 2071
    window_surface->funcs->lock( window_surface );
    prev = surface->color_key;
    set_color_key( surface, color_key );
    if (surface->color_key != prev) update_surface_region( surface );
    window_surface->funcs->unlock( window_surface );
}
2072 2073 2074 2075 2076 2077 2078 2079 2080

/***********************************************************************
 *           expose_surface
 */
HRGN expose_surface( struct window_surface *window_surface, const RECT *rect )
{
    struct x11drv_window_surface *surface = get_x11_surface( window_surface );
    HRGN region = 0;

2081 2082
    if (window_surface->funcs != &x11drv_surface_funcs) return 0;  /* we may get the null surface */

2083 2084 2085 2086 2087 2088 2089 2090 2091 2092 2093 2094 2095 2096
    window_surface->funcs->lock( window_surface );
    add_bounds_rect( &surface->bounds, rect );
    if (surface->region)
    {
        region = CreateRectRgnIndirect( rect );
        if (CombineRgn( region, region, surface->region, RGN_DIFF ) <= NULLREGION)
        {
            DeleteObject( region );
            region = 0;
        }
    }
    window_surface->funcs->unlock( window_surface );
    return region;
}