/* $XFree86: xc/programs/Xserver/iplan2p4/iplpixmap.c,v 3.0 1996/08/18 01:54:59 dawes Exp $ */ /* $XConsortium: iplpixmap.c,v 5.14 94/04/17 20:28:56 dpw Exp $ */ /*********************************************************** 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. ******************************************************************/ /* pixmap management written by drewry, september 1986 on a monchrome device, a pixmap is a bitmap. */ /* Modified nov 94 by Martin Schaller (Martin_Schaller@maus.r.de) for use with interleaved planes */ #ifdef HAVE_DIX_CONFIG_H #include <dix-config.h> #endif #include <X11/Xmd.h> #include "servermd.h" #include "scrnintstr.h" #include "pixmapstr.h" #include "mi.h" #include "ipl.h" #include "iplmskbits.h" extern unsigned long endtab[]; PixmapPtr iplCreatePixmap (pScreen, width, height, depth) ScreenPtr pScreen; int width; int height; int depth; { PixmapPtr pPixmap; size_t datasize; size_t paddedWidth; int ipad=INTER_PLANES*2 - 1; paddedWidth = PixmapBytePad(width, depth); paddedWidth = (paddedWidth + ipad) & ~ipad; if (paddedWidth / 4 > 32767 || height > 32767) return NullPixmap; datasize = height * paddedWidth; pPixmap = AllocatePixmap(pScreen, datasize); if (!pPixmap) return NullPixmap; pPixmap->drawable.type = DRAWABLE_PIXMAP; pPixmap->drawable.class = 0; pPixmap->drawable.pScreen = pScreen; pPixmap->drawable.depth = depth; pPixmap->drawable.bitsPerPixel = BitsPerPixel(depth); pPixmap->drawable.id = 0; pPixmap->drawable.serialNumber = NEXT_SERIAL_NUMBER; pPixmap->drawable.x = 0; pPixmap->drawable.y = 0; pPixmap->drawable.width = width; pPixmap->drawable.height = height; pPixmap->devKind = paddedWidth; pPixmap->refcnt = 1; #ifdef PIXPRIV pPixmap->devPrivate.ptr = datasize ? (pointer)((char *)pPixmap + pScreen->totalPixmapSize) : NULL; #else pPixmap->devPrivate.ptr = (pointer)((long)(pPixmap + 1)); #endif return pPixmap; } Bool iplDestroyPixmap(pPixmap) PixmapPtr pPixmap; { if(--pPixmap->refcnt) return TRUE; xfree(pPixmap); return TRUE; } PixmapPtr iplCopyPixmap(pSrc) register PixmapPtr pSrc; { register PixmapPtr pDst; int size; ScreenPtr pScreen; size = pSrc->drawable.height * pSrc->devKind; pScreen = pSrc->drawable.pScreen; pDst = (*pScreen->CreatePixmap) (pScreen, pSrc->drawable.width, pSrc->drawable.height, pSrc->drawable.depth); if (!pDst) return NullPixmap; memmove((char *)pDst->devPrivate.ptr, (char *)pSrc->devPrivate.ptr, size); return pDst; } /* replicates a pattern to be a full 32 bits wide. relies on the fact that each scnaline is longword padded. doesn't do anything if pixmap is not a factor of 32 wide. changes width field of pixmap if successful, so that the fast iplXRotatePixmap code gets used if we rotate the pixmap later. iplYRotatePixmap code gets used if we rotate the pixmap later. calculate number of times to repeat for each scanline of pattern zero out area to be filled with replicate left shift and or in original as many times as needed */ void iplPadPixmap(pPixmap) PixmapPtr pPixmap; { register int width = pPixmap->drawable.width; register int h; register unsigned short mask; register unsigned short *p; register unsigned short bits; /* real pattern bits */ register int i; int rep; /* repeat count for pattern */ if (width >= INTER_PGSZ) return; rep = INTER_PGSZ/width; /* if (rep*width != INTER_PGSZ) return; */ mask = iplendtab[width]; p = (unsigned short *)(pPixmap->devPrivate.ptr); for (h=0; h < pPixmap->drawable.height * INTER_PLANES; h++) { *p &= mask; bits = *p ; for(i=1; i<rep; i++) { #if (BITMAP_BIT_ORDER == MSBFirst) bits >>= width; #else bits <<= width; #endif *p |= bits; } p++; } pPixmap->drawable.width = rep*width; /* PGSZ/(pPixmap->drawable.bitsPerPixel); */ } #ifdef notdef /* * ipl debugging routine -- assumes pixmap is 1 byte deep */ static ipldumppixmap(pPix) PixmapPtr pPix; { unsigned int *pw; char *psrc, *pdst; int i, j; char line[66]; ErrorF( "pPixmap: 0x%x\n", pPix); ErrorF( "%d wide %d high\n", pPix->drawable.width, pPix->drawable.height); if (pPix->drawable.width > 64) { ErrorF( "too wide to see\n"); return; } pw = (unsigned int *) pPix->devPrivate.ptr; psrc = (char *) pw; /* for ( i=0; i<pPix->drawable.height; ++i ) ErrorF( "0x%x\n", pw[i] ); */ for ( i = 0; i < pPix->drawable.height; ++i ) { pdst = line; for(j = 0; j < pPix->drawable.width; j++) { *pdst++ = *psrc++ ? 'X' : ' ' ; } *pdst++ = '\n'; *pdst++ = '\0'; ErrorF( "%s", line); } } #endif /* notdef */ /* Rotates pixmap pPix by w pixels to the right on the screen. Assumes that * words are PGSZ bits wide, and that the least significant bit appears on the * left. */ void iplXRotatePixmap(pPix, rw) PixmapPtr pPix; register int rw; { INTER_DECLAREG(*pw); INTER_DECLAREG(*pwFinal); INTER_DECLAREGP(t); int rot; if (pPix == NullPixmap) return; switch (((DrawablePtr) pPix)->bitsPerPixel) { case INTER_PLANES: break; case 1: mfbXRotatePixmap(pPix, rw); return; default: ErrorF("iplXRotatePixmap: unsupported bitsPerPixel %d\n", ((DrawablePtr) pPix)->bitsPerPixel); return; } pw = (unsigned short *)pPix->devPrivate.ptr; modulus (rw, (int) pPix->drawable.width, rot); if(pPix->drawable.width == 16) { pwFinal = pw + pPix->drawable.height * INTER_PLANES; while(pw < pwFinal) { INTER_COPY(pw, t); INTER_MSKINSM(iplendtab[rot], INTER_PPG-rot, t, ~0, rot, t, pw) INTER_NEXT_GROUP(pw); } } else { ErrorF("ipl internal error: trying to rotate odd-sized pixmap.\n"); #ifdef notdef register unsigned long *pwTmp; int size, tsize; tsize = PixmapBytePad(pPix->drawable.width - rot, pPix->drawable.depth); pwTmp = (unsigned long *) ALLOCATE_LOCAL(pPix->drawable.height * tsize); if (!pwTmp) return; /* divide pw (the pixmap) in two vertically at (w - rot) and swap */ tsize >>= 2; size = pPix->devKind >> SIZE0F(PixelGroup); iplQuickBlt((long *)pw, (long *)pwTmp, 0, 0, 0, 0, (int)pPix->drawable.width - rot, (int)pPix->drawable.height, size, tsize); iplQuickBlt((long *)pw, (long *)pw, (int)pPix->drawable.width - rot, 0, 0, 0, rot, (int)pPix->drawable.height, size, size); iplQuickBlt((long *)pwTmp, (long *)pw, 0, 0, rot, 0, (int)pPix->drawable.width - rot, (int)pPix->drawable.height, tsize, size); DEALLOCATE_LOCAL(pwTmp); #endif } } /* Rotates pixmap pPix by h lines. Assumes that h is always less than pPix->drawable.height works on any width. */ void iplYRotatePixmap(pPix, rh) register PixmapPtr pPix; int rh; { int nbyDown; /* bytes to move down to row 0; also offset of row rh */ int nbyUp; /* bytes to move up to line rh; also offset of first line moved down to 0 */ char *pbase; char *ptmp; int rot; if (pPix == NullPixmap) return; switch (((DrawablePtr) pPix)->bitsPerPixel) { case INTER_PLANES: break; case 1: mfbYRotatePixmap(pPix, rh); return; default: ErrorF("iplYRotatePixmap: unsupported bitsPerPixel %d\n", ((DrawablePtr) pPix)->bitsPerPixel); return; } modulus (rh, (int) pPix->drawable.height, rot); pbase = (char *)pPix->devPrivate.ptr; nbyDown = rot * pPix->devKind; nbyUp = (pPix->devKind * pPix->drawable.height) - nbyDown; if(!(ptmp = (char *)ALLOCATE_LOCAL(nbyUp))) return; memmove(ptmp, pbase, nbyUp); /* save the low rows */ memmove(pbase, pbase+nbyUp, nbyDown); /* slide the top rows down */ memmove(pbase+nbyDown, ptmp, nbyUp); /* move lower rows up to row rot */ DEALLOCATE_LOCAL(ptmp); } void iplCopyRotatePixmap(psrcPix, ppdstPix, xrot, yrot) register PixmapPtr psrcPix, *ppdstPix; int xrot, yrot; { register PixmapPtr pdstPix; if ((pdstPix = *ppdstPix) && (pdstPix->devKind == psrcPix->devKind) && (pdstPix->drawable.height == psrcPix->drawable.height)) { memmove((char *)pdstPix->devPrivate.ptr, (char *)psrcPix->devPrivate.ptr, psrcPix->drawable.height * psrcPix->devKind); pdstPix->drawable.width = psrcPix->drawable.width; pdstPix->drawable.depth = psrcPix->drawable.depth; pdstPix->drawable.bitsPerPixel = psrcPix->drawable.bitsPerPixel; pdstPix->drawable.serialNumber = NEXT_SERIAL_NUMBER; } else { if (pdstPix) /* FIX XBUG 6168 */ (*pdstPix->drawable.pScreen->DestroyPixmap)(pdstPix); *ppdstPix = pdstPix = iplCopyPixmap(psrcPix); if (!pdstPix) return; } iplPadPixmap(pdstPix); if (xrot) iplXRotatePixmap(pdstPix, xrot); if (yrot) iplYRotatePixmap(pdstPix, yrot); }