1 /************************************************************************
3 Copyright 1987, 1998 The Open Group
5 Permission to use, copy, modify, distribute, and sell this software and its
6 documentation for any purpose is hereby granted without fee, provided that
7 the above copyright notice appear in all copies and that both that
8 copyright notice and this permission notice appear in supporting
11 The above copyright notice and this permission notice shall be included in
12 all copies or substantial portions of the Software.
14 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
15 IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
16 FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
17 OPEN GROUP BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
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19 CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
21 Except as contained in this notice, the name of The Open Group shall not be
22 used in advertising or otherwise to promote the sale, use or other dealings
23 in this Software without prior written authorization from The Open Group.
26 Copyright 1987 by Digital Equipment Corporation, Maynard, Massachusetts.
30 Permission to use, copy, modify, and distribute this software and its
31 documentation for any purpose and without fee is hereby granted,
32 provided that the above copyright notice appear in all copies and that
33 both that copyright notice and this permission notice appear in
34 supporting documentation, and that the name of Digital not be
35 used in advertising or publicity pertaining to distribution of the
36 software without specific, written prior permission.
38 DIGITAL DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING
39 ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL
40 DIGITAL BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR
41 ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS,
42 WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION,
43 ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS
46 ************************************************************************/
49 #ifdef HAVE_DIX_CONFIG_H
50 #include <dix-config.h>
54 #include <X11/fonts/fontstruct.h>
55 #include "dixfontstr.h"
56 #include "scrnintstr.h"
60 #include "cursorstr.h"
66 get the bits out of the font in a portable way. to avoid
67 dealing with padding and such-like, we draw the glyph into
68 a bitmap, then read the bits out with GetImage, which
69 uses server-natural format.
70 since all screens return the same bitmap format, we'll just use
71 the first one we find.
72 the character origin lines up with the hotspot in the
77 ServerBitsFromGlyph(FontPtr pfont, unsigned ch, CursorMetricPtr cm, unsigned char **ppbits)
86 unsigned char char2b[2];
88 /* turn glyph index into a protocol-format char2b */
89 char2b[0] = (unsigned char)(ch >> 8);
90 char2b[1] = (unsigned char)(ch & 0xff);
92 pScreen = screenInfo.screens[0];
93 nby = BitmapBytePad(cm->width) * (long)cm->height;
94 pbits = calloc(1, nby);
98 ppix = (PixmapPtr)(*pScreen->CreatePixmap)(pScreen, cm->width,
100 CREATE_PIXMAP_USAGE_SCRATCH);
101 pGC = GetScratchGC(1, pScreen);
105 (*pScreen->DestroyPixmap)(ppix);
114 rect.width = cm->width;
115 rect.height = cm->height;
117 /* fill the pixmap with 0 */
118 gcval[0].val = GXcopy;
120 gcval[2].ptr = (pointer)pfont;
121 ChangeGC(NullClient, pGC, GCFunction | GCForeground | GCFont, gcval);
122 ValidateGC((DrawablePtr)ppix, pGC);
123 (*pGC->ops->PolyFillRect)((DrawablePtr)ppix, pGC, 1, &rect);
127 ChangeGC(NullClient, pGC, GCForeground, gcval);
128 ValidateGC((DrawablePtr)ppix, pGC);
129 (*pGC->ops->PolyText16)((DrawablePtr)ppix, pGC, cm->xhot, cm->yhot,
130 1, (unsigned short *)char2b);
131 (*pScreen->GetImage)((DrawablePtr)ppix, 0, 0, cm->width, cm->height,
133 *ppbits = (unsigned char *)pbits;
135 (*pScreen->DestroyPixmap)(ppix);
141 CursorMetricsFromGlyph(FontPtr pfont, unsigned ch, CursorMetricPtr cm)
144 unsigned long nglyphs;
146 FontEncoding encoding;
150 encoding = (FONTLASTROW(pfont) == 0) ? Linear16Bit : TwoD16Bit;
151 if (encoding == Linear16Bit)
153 if (ch < pfont->info.firstCol || pfont->info.lastCol < ch)
158 if (chs[0] < pfont->info.firstRow || pfont->info.lastRow < chs[0])
160 if (chs[1] < pfont->info.firstCol || pfont->info.lastCol < chs[1])
163 (*pfont->get_glyphs) (pfont, 1, chs, encoding, &nglyphs, &pci);
166 cm->width = pci->metrics.rightSideBearing - pci->metrics.leftSideBearing;
167 cm->height = pci->metrics.descent + pci->metrics.ascent;
168 if (pci->metrics.leftSideBearing > 0)
170 cm->width += pci->metrics.leftSideBearing;
175 cm->xhot = -pci->metrics.leftSideBearing;
176 if (pci->metrics.rightSideBearing < 0)
177 cm->width -= pci->metrics.rightSideBearing;
179 if (pci->metrics.ascent < 0)
181 cm->height -= pci->metrics.ascent;
186 cm->yhot = pci->metrics.ascent;
187 if (pci->metrics.descent < 0)
188 cm->height -= pci->metrics.descent;