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Diffstat (limited to 'mfb/mfbimage.c')
| -rw-r--r-- | mfb/mfbimage.c | 173 |
1 files changed, 173 insertions, 0 deletions
diff --git a/mfb/mfbimage.c b/mfb/mfbimage.c new file mode 100644 index 000000000..93b01db02 --- /dev/null +++ b/mfb/mfbimage.c @@ -0,0 +1,173 @@ +/*********************************************************** + +Copyright 1987, 1998 The Open Group + +Permission to use, copy, modify, distribute, and sell this software and its +documentation for any purpose is hereby granted without fee, provided that +the above copyright notice appear in all copies and that both that +copyright notice and this permission notice appear in supporting +documentation. + +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 +OPEN GROUP 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 Open Group 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 Open Group. + + +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. + +******************************************************************/ +/* $Xorg: mfbimage.c,v 1.4 2001/02/09 02:05:19 xorgcvs Exp $ */ + +#include "X.h" + +#include "windowstr.h" +#include "pixmapstr.h" +#include "scrnintstr.h" +#include "gcstruct.h" + +#include "mfb.h" +#include "mi.h" +#include "Xmd.h" + +#include "maskbits.h" + +#include "servermd.h" + +/* Put and Get images on a monochrome frame buffer + * + * we do this by creating a temporary pixmap and making its + * pointer to bits point to the buffer read in from the client. + * this works because of the padding rules specified at startup + * + * Note that CopyArea must know how to copy a bitmap into the server-format + * temporary pixmap. + * + * For speed, mfbPutImage should allocate the temporary pixmap on the stack. + * + * even though an XYBitmap and an XYPixmap have the same + * format (for this device), PutImage has different semantics for the + * two. XYPixmap just does the copy; XYBitmap takes gc.fgPixel for + * a 1 bit, gc.bgPixel for a 0 bit, which we notice is exactly + * like CopyPlane. + * + * written by drewry, september 1986 + */ + + + +/*ARGSUSED*/ +void +mfbPutImage(dst, pGC, depth, x, y, w, h, leftPad, format, pImage) + DrawablePtr dst; + GCPtr pGC; + int depth, x, y, w, h; + int leftPad; + int format; + char *pImage; +{ + PixmapPtr pPixmap; + + if (!(pGC->planemask & 1)) + return; + + /* 0 may confuse CreatePixmap, and will sometimes be + passed by the mi text code + */ + if ((w == 0) || (h == 0)) + return; + + pPixmap = GetScratchPixmapHeader(dst->pScreen, w+leftPad, h, 1, 1, + BitmapBytePad(w+leftPad), (pointer)pImage); + if (!pPixmap) + return; + + ((mfbPrivGC *)(pGC->devPrivates[mfbGCPrivateIndex].ptr))->fExpose = FALSE; + if (format != XYBitmap) + (*pGC->ops->CopyArea)((DrawablePtr)pPixmap, dst, pGC, leftPad, 0, + w, h, x, y); + else + (*pGC->ops->CopyPlane)((DrawablePtr)pPixmap, dst, pGC, leftPad, 0, + w, h, x, y, 1); + ((mfbPrivGC*)(pGC->devPrivates[mfbGCPrivateIndex].ptr))->fExpose = TRUE; + FreeScratchPixmapHeader(pPixmap); +} + + +/* + * pdstLine points to space allocated by caller, which he can do since + * he knows dimensions of the pixmap + * we can call mfbDoBitblt because the dispatcher has promised not to send us + * anything that would require going over the edge of the screen. + * + * XYPixmap and ZPixmap are the same for mfb. + * For any planemask with bit 0 == 0, just fill the dst with 0. + */ +/*ARGSUSED*/ +void +mfbGetImage( pDrawable, sx, sy, w, h, format, planeMask, pdstLine) + DrawablePtr pDrawable; + int sx, sy, w, h; + unsigned int format; + unsigned long planeMask; + char *pdstLine; +{ + PixmapPtr pPixmap; + BoxRec box; + DDXPointRec ptSrc; + RegionRec rgnDst; + + if (planeMask & 0x1) + { + ScreenPtr pScreen = pDrawable->pScreen; + PixmapPtr pPixmap; + + pPixmap = GetScratchPixmapHeader(pScreen, w, h, /*depth*/ 1, /*bpp*/ 1, + BitmapBytePad(w), (pointer)pdstLine); + if (!pPixmap) + return; + + ptSrc.x = sx + pDrawable->x; + ptSrc.y = sy + pDrawable->y; + box.x1 = 0; + box.y1 = 0; + box.x2 = w; + box.y2 = h; + REGION_INIT(pScreen, &rgnDst, &box, 1); + mfbDoBitblt(pDrawable, (DrawablePtr)pPixmap, + GXcopy, &rgnDst, &ptSrc); + REGION_UNINIT(pScreen, &rgnDst); + FreeScratchPixmapHeader(pPixmap); + } + else + { + bzero(pdstLine, BitmapBytePad(w) * h); + } +} |