aboutsummaryrefslogtreecommitdiff
path: root/nx-X11/programs/Xserver/hw/nxagent/X/NXglyphcurs.c
diff options
context:
space:
mode:
Diffstat (limited to 'nx-X11/programs/Xserver/hw/nxagent/X/NXglyphcurs.c')
-rw-r--r--nx-X11/programs/Xserver/hw/nxagent/X/NXglyphcurs.c241
1 files changed, 241 insertions, 0 deletions
diff --git a/nx-X11/programs/Xserver/hw/nxagent/X/NXglyphcurs.c b/nx-X11/programs/Xserver/hw/nxagent/X/NXglyphcurs.c
new file mode 100644
index 000000000..7a1d813b3
--- /dev/null
+++ b/nx-X11/programs/Xserver/hw/nxagent/X/NXglyphcurs.c
@@ -0,0 +1,241 @@
+/**************************************************************************/
+/* */
+/* Copyright (c) 2001, 2011 NoMachine, http://www.nomachine.com/. */
+/* */
+/* NXAGENT, NX protocol compression and NX extensions to this software */
+/* are copyright of NoMachine. Redistribution and use of the present */
+/* software is allowed according to terms specified in the file LICENSE */
+/* which comes in the source distribution. */
+/* */
+/* Check http://www.nomachine.com/licensing.html for applicability. */
+/* */
+/* NX and NoMachine are trademarks of Medialogic S.p.A. */
+/* */
+/* All rights reserved. */
+/* */
+/**************************************************************************/
+
+/************************************************************************
+
+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: glyphcurs.c,v 1.4 2001/02/09 02:04:40 xorgcvs Exp $ */
+
+#ifdef HAVE_DIX_CONFIG_H
+#include <dix-config.h>
+#endif
+
+#include "misc.h"
+#include <X11/fonts/fontstruct.h>
+#include "dixfontstr.h"
+#include "scrnintstr.h"
+#include "gcstruct.h"
+#include "resource.h"
+#include "dix.h"
+#include "cursorstr.h"
+#include "opaque.h"
+#include "servermd.h"
+
+#include "../../fb/fb.h"
+#include "Pixmaps.h"
+
+#ifndef True
+#define True 1
+#endif
+
+/*
+ get the bits out of the font in a portable way. to avoid
+dealing with padding and such-like, we draw the glyph into
+a bitmap, then read the bits out with GetImage, which
+uses server-natural format.
+ since all screens return the same bitmap format, we'll just use
+the first one we find.
+ the character origin lines up with the hotspot in the
+cursor metrics.
+*/
+
+int
+ServerBitsFromGlyph(FontPtr pfont, unsigned ch, register CursorMetricPtr cm, unsigned char **ppbits)
+{
+ register ScreenPtr pScreen;
+ register GCPtr pGC;
+ xRectangle rect;
+ PixmapPtr ppix;
+ long nby;
+ char *pbits;
+ ChangeGCVal gcval[3];
+ unsigned char char2b[2];
+
+ /* turn glyph index into a protocol-format char2b */
+ char2b[0] = (unsigned char)(ch >> 8);
+ char2b[1] = (unsigned char)(ch & 0xff);
+
+ pScreen = screenInfo.screens[0];
+ nby = BitmapBytePad(cm->width) * (long)cm->height;
+ pbits = (char *)xalloc(nby);
+ if (!pbits)
+ return BadAlloc;
+ /* zeroing the (pad) bits seems to help some ddx cursor handling */
+ bzero(pbits, nby);
+
+ ppix = fbCreatePixmap(pScreen, cm->width, cm->height, 1);
+ pGC = GetScratchGC(1, pScreen);
+ if (!ppix || !pGC)
+ {
+ if (ppix)
+ fbDestroyPixmap(ppix);
+ if (pGC)
+ FreeScratchGC(pGC);
+ xfree(pbits);
+ return BadAlloc;
+ }
+
+ #ifdef TEST
+ fprintf(stderr, "ServerBitsFromGlyph: Created virtual pixmap at [%p] with width [%d] height [%d] depth [%d].\n",
+ (void *) ppix, cm->width, cm->height, 1);
+ #endif
+
+ nxagentPixmapPriv(ppix) -> id = 0;
+ nxagentPixmapPriv(ppix) -> mid = 0;
+ nxagentPixmapPriv(ppix) -> isVirtual = True;
+ nxagentPixmapPriv(ppix) -> pRealPixmap = NULL;
+ nxagentPixmapPriv(ppix) -> pVirtualPixmap = NULL;
+
+ rect.x = 0;
+ rect.y = 0;
+ rect.width = cm->width;
+ rect.height = cm->height;
+
+ pGC->stateChanges |= GCFunction | GCForeground | GCFont;
+ pGC->alu = GXcopy;
+
+ pGC->fgPixel = 0;
+
+ pfont->refcnt++;
+
+ if (pGC->font)
+ CloseFont(pGC->font, (Font)0);
+
+ pGC->font = pfont;
+
+ ValidateGC((DrawablePtr)ppix, pGC);
+ fbPolyFillRect((DrawablePtr)ppix, pGC, 1, &rect);
+
+ /* draw the glyph */
+ gcval[0].val = 1;
+ pGC->fgPixel = 1;
+
+ pGC->stateChanges |= GCForeground;
+
+ ValidateGC((DrawablePtr)ppix, pGC);
+ miPolyText16((DrawablePtr)ppix, pGC, (int)cm->xhot, (int)cm->yhot, (int)1, (unsigned short*)char2b);
+ fbGetImage((DrawablePtr)ppix, 0, 0, cm->width, cm->height,
+ XYPixmap, 1, pbits);
+ *ppbits = (unsigned char *)pbits;
+ FreeScratchGC(pGC);
+ fbDestroyPixmap(ppix);
+
+ #ifdef TEST
+ fprintf(stderr, "ServerBitsFromGlyph: Destroyed virtual pixmap at [%p].\n",
+ (void *) ppix);
+ #endif
+
+ return Success;
+}
+
+
+Bool
+CursorMetricsFromGlyph(register FontPtr pfont, unsigned ch, register CursorMetricPtr cm)
+{
+ CharInfoPtr pci;
+ unsigned long nglyphs;
+ CARD8 chs[2];
+ FontEncoding encoding;
+
+ chs[0] = ch >> 8;
+ chs[1] = ch;
+ encoding = (FONTLASTROW(pfont) == 0) ? Linear16Bit : TwoD16Bit;
+ if (encoding == Linear16Bit)
+ {
+ if (ch < pfont->info.firstCol || pfont->info.lastCol < ch)
+ return FALSE;
+ }
+ else
+ {
+ if (chs[0] < pfont->info.firstRow || pfont->info.lastRow < chs[0])
+ return FALSE;
+ if (chs[1] < pfont->info.firstCol || pfont->info.lastCol < chs[1])
+ return FALSE;
+ }
+ (*pfont->get_glyphs) (pfont, 1, chs, encoding, &nglyphs, &pci);
+ if (nglyphs == 0)
+ return FALSE;
+ cm->width = pci->metrics.rightSideBearing - pci->metrics.leftSideBearing;
+ cm->height = pci->metrics.descent + pci->metrics.ascent;
+ if (pci->metrics.leftSideBearing > 0)
+ {
+ cm->width += pci->metrics.leftSideBearing;
+ cm->xhot = 0;
+ }
+ else
+ {
+ cm->xhot = -pci->metrics.leftSideBearing;
+ if (pci->metrics.rightSideBearing < 0)
+ cm->width -= pci->metrics.rightSideBearing;
+ }
+ if (pci->metrics.ascent < 0)
+ {
+ cm->height -= pci->metrics.ascent;
+ cm->yhot = 0;
+ }
+ else
+ {
+ cm->yhot = pci->metrics.ascent;
+ if (pci->metrics.descent < 0)
+ cm->height -= pci->metrics.descent;
+ }
+ return TRUE;
+}
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-27 17:13:24 +0000