721 lines
17 KiB
C
721 lines
17 KiB
C
/*
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* Copyright IBM Corporation 1987,1988,1989
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*
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* All Rights Reserved
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*
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* Permission to use, copy, modify, and distribute this software and its
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* documentation for any purpose and without fee is hereby granted,
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* provided that the above copyright notice appear in all copies and that
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* both that copyright notice and this permission notice appear in
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* supporting documentation, and that the name of IBM not be
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* used in advertising or publicity pertaining to distribution of the
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* software without specific, written prior permission.
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*
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* IBM DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING
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* ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL
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* IBM BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR
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* ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS,
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* WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION,
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* ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS
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* SOFTWARE.
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*
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*/
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#ifdef HAVE_XORG_CONFIG_H
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#include <xorg-config.h>
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#endif
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#include "xf4bpp.h"
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#include "OScompiler.h"
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#include "vgaReg.h"
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#include "vgaVideo.h"
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#include "xf86str.h" /* for pScrn->vtSema */
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extern ScrnInfoPtr *xf86Screens;
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#ifndef PC98_EGC
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static unsigned char
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getbits
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(
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register const int x,
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register const unsigned int patternWidth,
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register const unsigned char * const lineptr
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)
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{
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register unsigned char bits ;
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register const unsigned char *cptr ;
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register int shift ;
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register int wrap ;
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cptr = lineptr + ( x >> 3 ) ;
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bits = *cptr ;
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if ((shift = x & 7))
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bits = SCRLEFT8( bits, shift ) | SCRRIGHT8( cptr[1], ( 8 - shift ) ) ;
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if ( ( wrap = x + 8 - patternWidth ) > 0 ) {
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bits &= SCRLEFT8( 0xFF, wrap ) ;
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bits |= SCRRIGHT8( *lineptr, ( 8 - wrap ) ) ;
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}
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/* GJA -- Handle extraction of 8 bits from < 8 bits wide stipple.
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* I duplicated case 4,5,6,7 to give the compiler a chance to optimize.
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*/
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switch (patternWidth) {
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case 1: /* Not really useful. */
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bits &= ~SCRRIGHT8(0xFF,1);
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bits |= SCRRIGHT8(bits,1);
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bits |= SCRRIGHT8(bits,2);
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bits |= SCRRIGHT8(bits,4);
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break;
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case 2:
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bits &= ~SCRRIGHT8(0xFF,2);
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bits |= SCRRIGHT8(bits,2); bits |= SCRRIGHT8(bits,4); break;
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case 3:
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bits &= ~SCRRIGHT8(0xFF,3);
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bits |= (SCRRIGHT8(bits,3) | SCRRIGHT8(bits,6)); break;
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case 4:
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bits = (bits & ~SCRRIGHT8(0xFF,4)) | SCRRIGHT8(bits,4); break;
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case 5:
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bits = (bits & ~SCRRIGHT8(0xFF,5)) | SCRRIGHT8(bits,5); break;
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case 6:
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bits = (bits & ~SCRRIGHT8(0xFF,6)) | SCRRIGHT8(bits,6); break;
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case 7:
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bits = (bits & ~SCRRIGHT8(0xFF,7)) | SCRRIGHT8(bits,7); break;
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default:
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;
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/* Do nothing, of course */
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}
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return bits ;
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}
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#endif
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/* GJA --
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* Basically, in the code below, we will draw a stipple in the usual
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* three parts: left edge, center and right edge.
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* For efficiency reasons, the center will be drawn byte aligned, so that
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* we will have to shuffle the bits in the left and right edges.
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* The hard cases will be stipples with width < 8: In order to get 8
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* bits from those, we will need a loop. One single 'if' will never do.
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* This is taken care of above.
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*/
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static void
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DoMonoSingle
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(
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WindowPtr pWin, /* GJA */
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int w,
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int x,
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int y,
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register const unsigned char *mastersrc,
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int h,
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register unsigned int width,
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register unsigned int paddedByteWidth,
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unsigned int height,
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int xshift,
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int yshift
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)
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{
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IOADDRESS REGBASE =
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xf86Screens[((DrawablePtr)pWin)->pScreen->myNum]->domainIOBase + 0x300;
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register volatile unsigned char *xDst ;
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register VideoAdapterObject tmp2 ;
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register int NeedValX ;
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register int counter ;
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register int tmp1 ;
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unsigned int rowCounter ;
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int byte_cnt ;
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#ifdef PC98_EGC
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unsigned char bitmask;
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#endif
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/* Do Left Edge */
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if ((tmp1 = x & 07)) {
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tmp2 = SCRRIGHT8( ( (unsigned) 0xFF ), tmp1 ) ;
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/* Catch The Cases Where The Entire Region Is Within One Byte */
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if ( ( w -= 8 - tmp1 ) < 0 ) {
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tmp2 &= SCRLEFT8( (unsigned) 0xFF, -w ) ;
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w = 0 ;
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}
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#ifndef PC98_EGC
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SetVideoGraphics( Bit_MaskIndex, tmp2 ) ; /* Set The Bit Mask */
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#else
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bitmask = tmp2; /* Set The Bit Mask */
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#endif
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/*
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* For Each Line In The Source Pixmap
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*/
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xDst = SCREENADDRESS( pWin, x, y );
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for ( tmp1 = yshift, rowCounter = h;
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rowCounter ;
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rowCounter-- , tmp1++ ) {
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if ( tmp1 >= (int)height )
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tmp1 -= height ;
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#ifndef PC98_EGC
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/* Read To Save */
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tmp2 = *( (VgaMemoryPtr) xDst) ;
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#endif
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/* Write Pattern */
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*( (VgaMemoryPtr) xDst ) =
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#ifndef PC98_EGC
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getbits( xshift /* GJA */, width,
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mastersrc
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+ ( tmp1 * paddedByteWidth ) ) >> (x & 07) ;
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#else
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#if 0
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(getbits( xshift /* GJA */, width,
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mastersrc
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+ ( tmp1 * paddedByteWidth ) ) >> (x & 07)
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& bitmask);
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#else
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(getbits_x( xshift /* GJA */, width,
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mastersrc
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+ ( tmp1 * paddedByteWidth ), (x & 07))
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& bitmask);
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#endif
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#endif
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xDst += BYTES_PER_LINE(pWin);
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}
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NeedValX = (xshift + 8 - (x & 07)) % width;
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x = ( x + 7 ) & ~07 ;
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}
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else {
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NeedValX = xshift ;
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}
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if ((byte_cnt = ROW_OFFSET(w))) { /* Fill The Center Of The Box */
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int SavNeedX = NeedValX ;
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#ifndef PC98_EGC
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SetVideoGraphics( Bit_MaskIndex, 0xFF ) ; /* Set The Bit Mask */
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#endif
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/*
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* For Each Line In The Source Pixmap
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*/
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xDst = SCREENADDRESS( pWin, x, y );
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for ( tmp1 = yshift, rowCounter = h;
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rowCounter ;
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rowCounter-- , tmp1++ ) {
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register const unsigned char *l_ptr ;
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if ( tmp1 >= (int)height )
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tmp1 -= height ;
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l_ptr = mastersrc + ( tmp1 * paddedByteWidth ) ;
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/*
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* For Each Byte Across The Pattern In X
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*/
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for ( counter = byte_cnt, NeedValX = SavNeedX ;
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counter-- ; ) {
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#ifndef PC98_EGC
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/* Read To Save */
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tmp2 = *( (VgaMemoryPtr) xDst) ;
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#endif
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/* Write Pattern */
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*( (VgaMemoryPtr) xDst ) =
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#ifndef PC98_EGC
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getbits( NeedValX, width, l_ptr ) ;
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#else
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#if 0
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getbits( NeedValX, width, l_ptr ) ;
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#else
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getbits_x ( NeedValX, width, l_ptr, 0 ) ;
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#endif
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#endif
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/* GJA -- The '%' is there since width could be < 8 */
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NeedValX = (NeedValX + 8) % width;
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xDst++;
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}
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xDst += BYTES_PER_LINE(pWin) - byte_cnt;
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}
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}
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/* Do Right Edge */
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if ((tmp1 = BIT_OFFSET(w))) { /* x Now Is Byte Aligned */
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/* Set The Bit Mask */
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#ifndef PC98_EGC
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SetVideoGraphics( Bit_MaskIndex, SCRLEFT8( 0xFF, ( 8 - tmp1 ) ) ) ;
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#else
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bitmask = SCRLEFT8( 0xFF, ( 8 - tmp1 ));
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#endif
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/*
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* For Each Line In The Source Pixmap
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*/
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xDst = SCREENADDRESS( pWin, ( x + w ), y );
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for ( tmp1 = yshift, rowCounter = h;
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rowCounter ;
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rowCounter-- , tmp1++ ) {
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if ( tmp1 >= (int)height )
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tmp1 -= height ;
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#ifndef PC98_EGC
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/* Read To Save */
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tmp2 = *( (VgaMemoryPtr) xDst) ;
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#endif
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/* Write Pattern */
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*( (VgaMemoryPtr) xDst ) =
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#ifndef PC98_EGC
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getbits( NeedValX, width,
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mastersrc
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+ ( tmp1 * paddedByteWidth ) ) ;
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#else
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#if 0
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(getbits( NeedValX, width,
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mastersrc
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+ ( tmp1 * paddedByteWidth ) ) & bitmask);
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#else
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(getbits_x( NeedValX, width,
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mastersrc
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+ ( tmp1 * paddedByteWidth ), 0 ) & bitmask);
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#endif
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#endif
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xDst += BYTES_PER_LINE(pWin) ;
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}
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}
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return ;
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}
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static void
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DoMonoMany
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(
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WindowPtr pWin, /* GJA */
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int w,
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int x,
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int y,
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register const unsigned char *mastersrc,
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int h,
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register unsigned int width,
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register unsigned int paddedByteWidth,
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unsigned int height,
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int xshift,
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int yshift
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)
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{
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IOADDRESS REGBASE =
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xf86Screens[((DrawablePtr)pWin)->pScreen->myNum]->domainIOBase + 0x300;
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register volatile unsigned char *xDst ;
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register VideoAdapterObject tmp2 ;
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register int NeedValX ;
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register int byte_cnt ;
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register int tmp1 ;
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unsigned DestinationRow ;
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unsigned int SourceRow ;
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volatile unsigned char *dst ;
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int scr_incr = ( height * BYTES_PER_LINE(pWin) ) ;
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#ifdef PC98_EGC
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unsigned char bitmask;
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#endif
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/* Do Left Edge */
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if ((tmp1 = x & 07)) {
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tmp2 = SCRRIGHT8( ( (unsigned) 0xFF ), tmp1 ) ;
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/* Catch The Cases Where The Entire Region Is Within One Byte */
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if ( ( w -= 8 - tmp1 ) < 0 ) {
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tmp2 &= SCRLEFT8( (unsigned) 0xFF, -w ) ;
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w = 0 ;
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}
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#ifndef PC98_EGC
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SetVideoGraphics( Bit_MaskIndex, tmp2 ) ; /* Set The Bit Mask */
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#else
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bitmask = tmp2; /* Set The Bit Mask */
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#endif
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/*
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* For Each Line In The Source Pixmap
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*/
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for ( tmp1 = yshift, SourceRow = 0, dst = SCREENADDRESS( pWin, x, y ) ;
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SourceRow < height ;
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tmp1++, SourceRow++, dst += BYTES_PER_LINE(pWin) ) {
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register unsigned bitPattern ;
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if ( tmp1 >= (int)height )
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tmp1 -= height ;
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/*
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* For Each Time Pattern Repeats In The Y Dimension
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*/
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xDst = dst;
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for ( DestinationRow = SourceRow,
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#ifndef PC98_EGC
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bitPattern = getbits( xshift, width,
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mastersrc
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+ ( tmp1 * paddedByteWidth ) ) ;
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#else
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#if 0
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bitPattern = getbits( xshift, width,
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mastersrc
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+ ( tmp1 * paddedByteWidth ) ) ;
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#else
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bitPattern = getbits_x( xshift, width,
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mastersrc
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+ ( tmp1 * paddedByteWidth ), 0 ) ;
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#endif
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#endif
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(int)DestinationRow < h ;
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DestinationRow += height ) {
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#ifndef PC98_EGC
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/* Read To Save */
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tmp2 = *( (VgaMemoryPtr) xDst ) ;
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#endif
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/* Write Pattern */
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#ifndef PC98_EGC
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*( (VgaMemoryPtr) xDst ) = bitPattern >> (x & 07);
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#else
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*( (VgaMemoryPtr) xDst ) = (bitPattern >> (x & 07)) & bitmask;
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#endif
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xDst += scr_incr;
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}
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}
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NeedValX = (xshift + 8 - (x & 07)) % width;
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x = ( x + 7 ) & ~07 ;
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}
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else {
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NeedValX = xshift ;
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}
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if ((byte_cnt = ROW_OFFSET(w))) { /* Fill The Center Of The Box */
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int SavNeedX = NeedValX ;
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#ifndef PC98_EGC
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SetVideoGraphics( Bit_MaskIndex, 0xFF ) ; /* Set The Bit Mask */
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#endif
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/*
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* For Each Line In The Source Pixmap
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*/
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for ( tmp1 = yshift, SourceRow = 0, dst = SCREENADDRESS( pWin, x, y ) ;
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SourceRow < height ;
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tmp1++, SourceRow++, dst += BYTES_PER_LINE(pWin) - byte_cnt ) {
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register const unsigned char *l_ptr ;
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if ( tmp1 >= (int)height )
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tmp1 -= height ;
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l_ptr = mastersrc + ( tmp1 * paddedByteWidth ) ;
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/*
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* For Each Byte Across The Pattern In X
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*/
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for ( tmp2 = byte_cnt, NeedValX = SavNeedX ;
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tmp2-- ;
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dst++ ) {
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register unsigned bitPattern ;
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#ifndef PC98_EGC
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register VideoAdapterObject tmp3 ;
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#endif
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/*
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* For Each Time Pattern Repeats In Y
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*/
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xDst = dst;
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for ( DestinationRow = SourceRow,
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#ifndef PC98_EGC
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bitPattern = getbits( NeedValX, width, l_ptr ) ;
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#else
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#if 0
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bitPattern = getbits( NeedValX, width, l_ptr ) ;
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#else
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bitPattern = getbits_x( NeedValX, width, l_ptr, 0 ) ;
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#endif
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#endif
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(int)DestinationRow < h ;
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DestinationRow += height ) {
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#ifndef PC98_EGC
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/* Read To Save */
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tmp3 = *( (VgaMemoryPtr) xDst) ;
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(void)tmp3;
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#endif
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/* Write Pattern */
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*( (VgaMemoryPtr) xDst ) = bitPattern ;
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xDst += scr_incr;
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}
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NeedValX = (NeedValX + 8) % width;
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}
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}
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}
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/* Do Right Edge */
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if ((tmp1 = BIT_OFFSET(w))) { /* x Now Is Byte Aligned */
|
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/* Set The Bit Mask */
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#ifndef PC98_EGC
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SetVideoGraphics( Bit_MaskIndex, SCRLEFT8( 0xFF, ( 8 - tmp1 ) ) ) ;
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#else
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bitmask = SCRLEFT8( 0xFF, ( 8 - tmp1 ) );
|
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#endif
|
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/*
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* For Each Line In The Source Pixmap
|
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*/
|
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for ( tmp1 = yshift, SourceRow = 0,
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dst = SCREENADDRESS( pWin, ( x + w ), y ) ;
|
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SourceRow < height ;
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tmp1++, SourceRow++, dst += BYTES_PER_LINE(pWin) ) {
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register unsigned bitPattern ;
|
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if ( tmp1 >= (int)height )
|
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tmp1 -= height ;
|
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/*
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* For Each Time Pattern Repeats In The Y Dimension
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*/
|
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xDst = dst;
|
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for ( DestinationRow = SourceRow,
|
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#ifndef PC98_EGC
|
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bitPattern = getbits( NeedValX, width,
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mastersrc
|
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+ ( tmp1 * paddedByteWidth ) ) ;
|
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#else
|
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#if 0
|
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bitPattern = getbits( NeedValX, width,
|
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mastersrc
|
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+ ( tmp1 * paddedByteWidth ) ) ;
|
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#else
|
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bitPattern = getbits_x( NeedValX, width,
|
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mastersrc
|
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+ ( tmp1 * paddedByteWidth ), 0 ) ;
|
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#endif
|
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#endif
|
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(int)DestinationRow < h ;
|
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DestinationRow += height ) {
|
|
#ifndef PC98_EGC
|
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/* Read To Save */
|
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tmp2 = *( (VgaMemoryPtr) xDst) ;
|
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#endif
|
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/* Write Pattern */
|
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#ifndef PC98_EGC
|
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*( (VgaMemoryPtr) xDst ) = bitPattern ;
|
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#else
|
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*( (VgaMemoryPtr) xDst ) = bitPattern & bitmask;
|
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#endif
|
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xDst += scr_incr;
|
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}
|
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}
|
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}
|
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|
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return ;
|
|
}
|
|
|
|
#define DO_RECURSE 0x10000
|
|
|
|
static void
|
|
vgaSetMonoRegisters
|
|
(
|
|
DrawablePtr pDrawable,
|
|
register unsigned long int plane_mask,
|
|
register unsigned long int desiredState
|
|
)
|
|
{
|
|
IOADDRESS REGBASE =
|
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xf86Screens[pDrawable->pScreen->myNum]->domainIOBase + 0x300;
|
|
#ifndef PC98_EGC
|
|
/* Setup VGA Registers */
|
|
/*
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* Set The Plane-Enable
|
|
*/
|
|
SetVideoSequencer( Mask_MapIndex, plane_mask ) ;
|
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SetVideoGraphics( Enb_Set_ResetIndex, plane_mask ) ;
|
|
/*
|
|
* Put Display Into SET-AND (i.e. Write Mode 3 )
|
|
*/
|
|
SetVideoGraphics( Graphics_ModeIndex, VGA_WRITE_MODE_3 ) ;
|
|
/*
|
|
* Set The Color in The Set/Reset Register
|
|
*/
|
|
SetVideoGraphics( Set_ResetIndex, desiredState & VGA_ALLPLANES ) ;
|
|
/*
|
|
* Set The Vga's Alu Function
|
|
*/
|
|
SetVideoGraphics( Data_RotateIndex, desiredState >> 8 ) ;
|
|
#else /* PC98_EGC */
|
|
unsigned short ROP_value;
|
|
/* Setup VGA Registers */
|
|
/*
|
|
* Set The Plane-Enable
|
|
*/
|
|
outw(EGC_PLANE, ~plane_mask);
|
|
switch((desiredState >> 8)&0x18) {
|
|
/* EGC MODE.. Cmp Read: Flase, WriteSource=ROP, ReadSource=CPU */
|
|
case VGA_AND_MODE:
|
|
if (desiredState & DO_RECURSE)
|
|
ROP_value = EGC_AND_INV_MODE;
|
|
else
|
|
ROP_value = EGC_AND_MODE;
|
|
break;
|
|
case VGA_OR_MODE:
|
|
if (desiredState & DO_RECURSE)
|
|
ROP_value = EGC_OR_INV_MODE;
|
|
else
|
|
ROP_value = EGC_OR_MODE;
|
|
break;
|
|
case VGA_XOR_MODE:
|
|
if (desiredState & DO_RECURSE)
|
|
ROP_value = EGC_XOR_INV_MODE;
|
|
else
|
|
ROP_value = EGC_XOR_MODE;
|
|
break;
|
|
case VGA_COPY_MODE:
|
|
default:
|
|
ROP_value = EGC_COPY_MODE;
|
|
break;
|
|
}
|
|
outw(EGC_MODE, ROP_value);
|
|
outw(EGC_FGC, desiredState & VGA_ALLPLANES);
|
|
#endif
|
|
|
|
return ;
|
|
}
|
|
|
|
static unsigned long
|
|
vgaCalcMonoMode
|
|
(
|
|
int rasterOp,
|
|
register unsigned long int color
|
|
)
|
|
{
|
|
register unsigned int data_rotate_value = VGA_COPY_MODE << 8 ;
|
|
register unsigned int invert_existing_data = 0 ;
|
|
|
|
/* Test The Raster-Op */
|
|
switch ( rasterOp ) {
|
|
case GXclear: /* 0x0 Zero 0 */
|
|
color = 0 ;
|
|
break ;
|
|
case GXinvert: /* 0xa NOT dst */
|
|
data_rotate_value = VGA_XOR_MODE << 8 ;
|
|
case GXset: /* 0xf 1 */
|
|
color = VGA_ALLPLANES ;
|
|
break ;
|
|
case GXnor: /* 0x8 NOT src AND NOT dst */
|
|
invert_existing_data = DO_RECURSE ;
|
|
case GXandInverted: /* 0x4 NOT src AND dst */
|
|
color = ~color ;
|
|
case GXand: /* 0x1 src AND dst */
|
|
data_rotate_value = VGA_AND_MODE << 8 ;
|
|
case GXcopy: /* 0x3 src */
|
|
break ;
|
|
case GXequiv: /* 0x9 NOT src XOR dst */
|
|
color = ~color ;
|
|
case GXxor: /* 0x6 src XOR dst */
|
|
data_rotate_value = VGA_XOR_MODE << 8 ;
|
|
break ;
|
|
case GXandReverse: /* 0x2 src AND NOT dst */
|
|
invert_existing_data = DO_RECURSE ;
|
|
data_rotate_value = VGA_AND_MODE << 8 ;
|
|
break ;
|
|
case GXorReverse: /* 0xb src OR NOT dst */
|
|
invert_existing_data = DO_RECURSE ;
|
|
data_rotate_value = VGA_OR_MODE << 8 ;
|
|
break ;
|
|
case GXnand: /* 0xe NOT src OR NOT dst */
|
|
invert_existing_data = DO_RECURSE ;
|
|
case GXorInverted: /* 0xd NOT src OR dst */
|
|
color = ~color ;
|
|
case GXor: /* 0x7 src OR dst */
|
|
data_rotate_value = VGA_OR_MODE << 8 ;
|
|
break ;
|
|
case GXcopyInverted: /* 0xc NOT src */
|
|
color = ~color ;
|
|
break ;
|
|
case GXnoop: /* 0x5 dst */
|
|
; /* Shouldn't Get Here !! */
|
|
}
|
|
|
|
return ( color & VGA_ALLPLANES ) | data_rotate_value | invert_existing_data ;
|
|
}
|
|
|
|
static void
|
|
vgaDrawMonoImage
|
|
(
|
|
WindowPtr pWin, /* GJA */
|
|
unsigned char *data,
|
|
int x,
|
|
int y,
|
|
int w,
|
|
int h,
|
|
unsigned long int fg,
|
|
int alu,
|
|
unsigned long int planes
|
|
)
|
|
{
|
|
unsigned long regState ;
|
|
|
|
if ( !xf86Screens[((DrawablePtr)pWin)->pScreen->myNum]->vtSema ) {
|
|
xf4bppOffDrawMonoImage( pWin, data, x, y, w, h, fg, alu, planes );
|
|
return;
|
|
}
|
|
|
|
if ( ( alu == GXnoop ) || !( planes &= VGA_ALLPLANES ) )
|
|
return ;
|
|
|
|
#ifndef PC98_EGC
|
|
if ( ( regState = vgaCalcMonoMode( alu, fg ) ) & DO_RECURSE ) {
|
|
vgaDrawMonoImage( pWin, data, x, y, w, h,
|
|
VGA_ALLPLANES, GXinvert, planes ) ;
|
|
regState &= ~DO_RECURSE ;
|
|
}
|
|
#else
|
|
regState = vgaCalcMonoMode(alu, (char)fg);
|
|
#endif
|
|
|
|
|
|
vgaSetMonoRegisters( (DrawablePtr)pWin, planes, regState ) ;
|
|
|
|
DoMonoSingle( pWin, w, x, y, (const unsigned char *) data, h,
|
|
w, ( ( w + 31 ) & ~31 ) >> 3, h, 0, 0 ) ;
|
|
|
|
|
|
return ;
|
|
}
|
|
|
|
void
|
|
xf4bppFillStipple( pWin, pStipple, fg, alu, planes, x, y, w, h, xSrc, ySrc )
|
|
WindowPtr pWin; /* GJA */
|
|
register PixmapPtr const pStipple ;
|
|
unsigned long int fg ;
|
|
const int alu ;
|
|
unsigned long int planes ;
|
|
int x, y, w, h ;
|
|
const int xSrc, ySrc ;
|
|
{
|
|
unsigned int width ;
|
|
unsigned int height ;
|
|
int xshift ;
|
|
int yshift ;
|
|
unsigned long regState ;
|
|
|
|
if ( !xf86Screens[((DrawablePtr)pWin)->pScreen->myNum]->vtSema ) {
|
|
xf4bppOffFillStipple( pWin, pStipple, fg, alu, planes,
|
|
x, y, w, h, xSrc, ySrc );
|
|
return;
|
|
}
|
|
|
|
if ( ( alu == GXnoop ) || !( planes &= VGA_ALLPLANES ) )
|
|
return ;
|
|
|
|
#if 1
|
|
if ( ( regState = vgaCalcMonoMode( alu, fg ) ) & DO_RECURSE ) {
|
|
xf4bppFillStipple( pWin, pStipple, VGA_ALLPLANES, GXinvert, planes,
|
|
x, y, w, h, xSrc, ySrc ) ;
|
|
regState &= ~DO_RECURSE ;
|
|
}
|
|
#else
|
|
regState = vgaCalcMonoMode(alu, (char)fg);
|
|
#endif
|
|
|
|
|
|
vgaSetMonoRegisters( (DrawablePtr)pWin, planes, regState ) ;
|
|
|
|
/* Figure Bit Offsets & Source Address */
|
|
width = pStipple->drawable.width ;
|
|
if ( ( xshift = ( x - xSrc ) ) < 0 )
|
|
xshift = width - ( ( - xshift ) % width ) ;
|
|
else
|
|
xshift %= width ;
|
|
if ( xshift == (int)width ) xshift = 0;
|
|
|
|
height = pStipple->drawable.height ;
|
|
if ( ( yshift = ( y - ySrc ) ) < 0 )
|
|
yshift = height - ( ( - yshift ) % height ) ;
|
|
else
|
|
yshift %= height ;
|
|
if ( yshift == (int)height ) yshift = 0;
|
|
|
|
(* ( (h > (int)height) ? DoMonoMany : DoMonoSingle ) ) (
|
|
pWin, w, x, y,
|
|
(const unsigned char *) pStipple->devPrivate.ptr,
|
|
h,
|
|
width,
|
|
( ( width + 31 ) & ((unsigned)(~31)) ) >> 3,
|
|
height,
|
|
xshift, yshift
|
|
) ;
|
|
|
|
return ;
|
|
}
|