diff options
Diffstat (limited to 'xorg-server/hw/xfree86/xf4bpp/ppcSetSp.c')
| -rw-r--r-- | xorg-server/hw/xfree86/xf4bpp/ppcSetSp.c | 319 |
1 files changed, 319 insertions, 0 deletions
diff --git a/xorg-server/hw/xfree86/xf4bpp/ppcSetSp.c b/xorg-server/hw/xfree86/xf4bpp/ppcSetSp.c new file mode 100644 index 000000000..7659384e7 --- /dev/null +++ b/xorg-server/hw/xfree86/xf4bpp/ppcSetSp.c @@ -0,0 +1,319 @@ +/* + * Copyright IBM Corporation 1987,1988,1989 + * + * All Rights Reserved + * + * Permission to use, copy, modify, and distribute this software and its + * documentation for any purpose and without fee is hereby granted, + * provided that the above copyright notice appear in all copies and that + * both that copyright notice and this permission notice appear in + * supporting documentation, and that the name of IBM not be + * used in advertising or publicity pertaining to distribution of the + * software without specific, written prior permission. + * + * IBM DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING + * ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL + * IBM BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR + * ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, + * WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, + * ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS + * SOFTWARE. + * +*/ + +/*********************************************************** + +Copyright (c) 1987 X Consortium + +Permission is hereby granted, free of charge, to any person obtaining a copy +of this software and associated documentation files (the "Software"), to deal +in the Software without restriction, including without limitation the rights +to use, copy, modify, merge, publish, distribute, sublicense, and/or sell +copies of the Software, and to permit persons to whom the Software is +furnished to do so, subject to the following conditions: + +The above copyright notice and this permission notice shall be included in +all copies or substantial portions of the Software. + +THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR +IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, +FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE +X CONSORTIUM BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN +AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN +CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + +Except as contained in this notice, the name of the X Consortium shall not be +used in advertising or otherwise to promote the sale, use or other dealings +in this Software without prior written authorization from the X Consortium. + + +Copyright 1987 by Digital Equipment Corporation, Maynard, Massachusetts. + + All Rights Reserved + +Permission to use, copy, modify, and distribute this software and its +documentation for any purpose and without fee is hereby granted, +provided that the above copyright notice appear in all copies and that +both that copyright notice and this permission notice appear in +supporting documentation, and that the name of Digital not be +used in advertising or publicity pertaining to distribution of the +software without specific, written prior permission. + +DIGITAL DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING +ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL +DIGITAL BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR +ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, +WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, +ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS +SOFTWARE. + +******************************************************************/ + +#ifdef HAVE_XORG_CONFIG_H +#include <xorg-config.h> +#endif + +#include <stdlib.h> + +#include "xf4bpp.h" +#include "OScompiler.h" +#include "mfbmap.h" +#include "mfb.h" +#include "servermd.h" + +/* SetScanline -- copies the bits from psrc to the drawable starting at + * (xStart, y) and continuing to (xEnd, y). xOrigin tells us where psrc + * starts on the scanline. (I.e., if this scanline passes through multiple + * boxes, we may not want to start grabbing bits at psrc but at some offset + * further on.) + */ +static void +ppcSetScanline +( + register int pixCount, /* width of scanline in bits */ + register char *psrc, + register unsigned char *pdst, /* where to put the bits */ + register int pm, /* plane mask */ + const int alu /* raster op */ +) +{ +register int npm = ~pm ; /* inverted plane mask */ +register char tmpx ; + +pm &= 0x0F; npm &= 0x0F; /* GJA */ + +switch ( alu ) { + case GXclear: /* 0x0 Zero 0 */ + while ( pixCount-- ) + *pdst++ &= npm ; + break ; + case GXand: /* 0x1 src AND dst */ + while ( pixCount-- ) + *pdst++ &= *psrc++ | npm ; + break ; + case GXandReverse: /* 0x2 src AND NOT dst */ + for ( ; pixCount-- ; pdst++, psrc++ ) { + tmpx = *pdst; + *pdst = ( tmpx & npm ) | ( pm & *psrc & ~tmpx ) ; + } + break ; + case GXcopy: /* 0x3 src */ + for ( ; pixCount-- ; pdst++, psrc++ ) + *pdst = ( *pdst & npm ) | ( pm & *psrc ) ; + break ; + case GXandInverted: /* 0x4 NOT src AND dst */ + while ( pixCount-- ) + *pdst++ &= npm | ~*psrc++ ; + break ; + case GXnoop: /* 0x5 dst */ + break ; + case GXxor: /* 0x6 src XOR dst */ + while ( pixCount-- ) + *pdst++ ^= pm & *psrc++ ; + break ; + case GXor: /* 0x7 src OR dst */ + while ( pixCount-- ) + *pdst++ |= *psrc++ & pm ; + break ; + case GXnor: /* 0x8 NOT src AND NOT dst */ + for ( ; pixCount-- ; pdst++, psrc++ ) { + tmpx = *pdst; + *pdst = ( tmpx & npm ) | ( pm & ~( tmpx | *psrc ) ) ; + } + break ; + case GXequiv: /* 0x9 NOT src XOR dst */ + while ( pixCount-- ) + *pdst++ ^= pm & ~ *psrc++ ; + break ; + case GXorReverse: /* 0xb src OR NOT dst */ + for ( ; pixCount-- ; pdst++, psrc++ ) { + tmpx = *pdst; + *pdst = ( tmpx & npm ) | ( pm & ( *psrc | ~tmpx ) ) ; + } + break ; + case GXinvert: /* 0xa NOT dst */ + while ( pixCount-- ) + *pdst++ ^= pm ; + break ; + case GXcopyInverted: /* 0xc NOT src */ + for ( ; pixCount-- ; pdst++, psrc++ ) + *pdst = ( *pdst & npm ) | ( pm & ~ *psrc ) ; + break ; + case GXorInverted: /* 0xd NOT src OR dst */ + while ( pixCount-- ) + *pdst++ |= pm & ~ *psrc++ ; + break ; + case GXnand: /* 0xe NOT src OR NOT dst */ + for ( ; pixCount-- ; pdst++, psrc++ ) { + tmpx = *pdst; + *pdst = ( tmpx & npm ) | ( pm & ~( tmpx & *psrc ) ) ; + } + break ; + case GXset: /* 0xf 1 */ + while ( pixCount-- ) + *pdst++ |= pm ; + break ; + default: + ErrorF( "ppcSetScanLine: bad alu value == 0x%02X\n", alu ) ; + break ; +} + +return ; +} + +/* SetSpans -- for each span copy pwidth[i] bits from psrc to pDrawable at + * ppt[i] using the raster op from the GC. If fSorted is TRUE, the scanlines + * are in increasing Y order. + * Source bit lines are server scanline padded so that they always begin + * on a word boundary. + */ +void +xf4bppSetSpans( pDrawable, pGC, psrc, ppt, pwidth, nspans, fSorted ) + register DrawablePtr pDrawable ; + GCPtr pGC ; + char *psrc ; + register DDXPointPtr ppt ; + int *pwidth ; + int nspans ; + int fSorted ; +{ + unsigned char *pdstBase = NULL; /* start of dst bitmap */ + int widthDst = 0; /* width of bitmap in words */ + register BoxPtr pbox, pboxLast, pboxTest ; + register DDXPointPtr pptLast ; + RegionPtr prgnDst ; + register int width ; + int xStart, xEnd ; + int yMax ; + int alu ; + int pm ; + + /* allow for 1-deep windows on nfb machines (eg apa8, aed) */ + if ( ( pDrawable->depth == 1 ) && ( pDrawable->type == DRAWABLE_PIXMAP ) ) { + mfbSetSpans( pDrawable, pGC, psrc, ppt, pwidth, nspans, fSorted ) ; + return ; + } + + if ( !( pm = pGC->planemask & ~( (~0) << pDrawable->depth ) ) + || ( ( alu = pGC->alu ) == GXnoop ) ) + return ; + + prgnDst = pGC->pCompositeClip ; + + if ( ! REGION_NUM_RECTS(prgnDst)) + return ; + + pboxLast = ( pbox = REGION_RECTS(prgnDst) ) + REGION_NUM_RECTS(prgnDst); + pptLast = ppt + nspans ; + + if ( pDrawable->type == DRAWABLE_WINDOW ) { + yMax = (int) pDrawable->height + pDrawable->y ; + } + else { + pdstBase = (unsigned char *) ( (PixmapPtr) pDrawable )->devPrivate.ptr ; + widthDst = (int) ( (PixmapPtr) pDrawable )->devKind ; + yMax = pDrawable->height ; + } + + if ( fSorted ) { + /* scan lines sorted in ascending order. Because they are sorted, we + * don't have to check each scanline against each clip box. We can be + * sure that this scanline only has to be clipped to boxes at or after the + * beginning of this y-band + */ + for ( pboxTest = pbox ; + ( ppt < pptLast ) && ( ppt->y < yMax ) ; + ppt++, pwidth++, + psrc += PixmapBytePad( width, pDrawable->depth ) ) { + width = *pwidth ; + for ( pbox = pboxTest ; + pbox < pboxLast ; + pbox++ ) { + if ( pbox->y2 <= ppt->y ) { + /* clip box is before scanline */ + pboxTest = pbox + 1 ; + } + else if ( ( pbox->y1 > ppt->y ) + || ( pbox->x1 > ppt->x + width ) ) + break ; /* scanline before clip box or left of clip box */ + else if ( pbox->x2 > ppt->x ) { + /* some of the scanline is in the current clip box */ + xStart = MAX( pbox->x1, ppt->x ) ; + xEnd = MIN( ppt->x + width, pbox->x2 ) ; + if ( pDrawable->type == DRAWABLE_PIXMAP ) + ppcSetScanline( xEnd - xStart, + psrc + ( xStart - ppt->x ), + pdstBase + xStart + + ( ppt->y * widthDst ), + pm, alu ) ; + else + xf4bppDrawColorImage( (WindowPtr)pDrawable, + xStart, ppt->y, xEnd - xStart, 1, + (unsigned char *)psrc + ( xStart - ppt->x ), + xEnd - xStart, alu, pm ) ; + if ( ppt->x + width <= pbox->x2 ) + break ; /* End of the line, as it were */ + } + } + /* We've tried this line against every box ; it must be outside them + * all. move on to the next point */ + } + } + else { + /* scan lines not sorted. We must clip each line against all the boxes */ + for ( ; + ppt < pptLast ; + ppt++, pwidth++, + psrc += PixmapBytePad( width, pDrawable->depth ) ) { + width = *pwidth ; + if ( ppt->y >= 0 && ppt->y < yMax ) { + for ( pbox = REGION_RECTS(prgnDst) ; pbox < pboxLast ; pbox++ ) { + if ( pbox->y1 > ppt->y ) + break ; /* rest of clip region is above this scanline */ + else if ( ( pbox->y2 > ppt->y ) + && ( pbox->x1 <= ppt->x + width ) + && ( pbox->x2 > ppt->x ) ) { + xStart = MAX( pbox->x1, ppt->x ) ; + xEnd = MIN( pbox->x2, ppt->x + width ) ; + if ( pDrawable->type == DRAWABLE_PIXMAP ) + ppcSetScanline( xEnd - xStart, + psrc + ( xStart - ppt->x ), + /* ^ GJA */ + ( ( pdstBase + + ( ppt->y * widthDst ) ) + + xStart ), + pm, alu ) ; + else /* pDrawable->type == DRAWABLE_WINDOW */ + xf4bppDrawColorImage( (WindowPtr)pDrawable, + xStart, ppt->y, xEnd - xStart, 1, + (unsigned char *)psrc + ( xStart - ppt->x ), + /* GJA ^ */ + xEnd - xStart, alu, pm ) ; + } + + } + } + } + } + return ; +} |