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-rw-r--r--libXfont/src/bitmap/bitmap.c160
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diff --git a/libXfont/src/bitmap/bitmap.c b/libXfont/src/bitmap/bitmap.c
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+/* $Xorg: bitmap.c,v 1.4 2001/02/09 02:04:02 xorgcvs Exp $ */
+
+/*
+
+Copyright 1991, 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.
+
+*/
+/* $XFree86: xc/lib/font/bitmap/bitmap.c,v 1.6 2001/01/17 19:43:27 dawes Exp $ */
+
+/*
+ * Author: Keith Packard, MIT X Consortium
+ */
+
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+#endif
+
+#include <X11/fonts/fntfilst.h>
+#include <X11/fonts/bitmap.h>
+
+int
+bitmapGetGlyphs(FontPtr pFont, unsigned long count, unsigned char *chars,
+ FontEncoding charEncoding,
+ unsigned long *glyphCount, /* RETURN */
+ CharInfoPtr *glyphs) /* RETURN */
+{
+ BitmapFontPtr bitmapFont;
+ unsigned int firstCol;
+ register unsigned int numCols;
+ unsigned int firstRow;
+ unsigned int numRows;
+ CharInfoPtr *glyphsBase;
+ register unsigned int c;
+ register CharInfoPtr pci;
+ unsigned int r;
+ CharInfoPtr **encoding;
+ CharInfoPtr pDefault;
+
+ bitmapFont = (BitmapFontPtr) pFont->fontPrivate;
+ encoding = bitmapFont->encoding;
+ pDefault = bitmapFont->pDefault;
+ firstCol = pFont->info.firstCol;
+ numCols = pFont->info.lastCol - firstCol + 1;
+ glyphsBase = glyphs;
+ switch (charEncoding) {
+
+ case Linear8Bit:
+ case TwoD8Bit:
+ if (pFont->info.firstRow > 0)
+ break;
+ if (pFont->info.allExist && pDefault) {
+ while (count--) {
+ c = (*chars++) - firstCol;
+ if (c < numCols)
+ *glyphs++ = ACCESSENCODING(encoding,c);
+ else
+ *glyphs++ = pDefault;
+ }
+ } else {
+ while (count--) {
+ c = (*chars++) - firstCol;
+ if (c < numCols && (pci = ACCESSENCODING(encoding,c)))
+ *glyphs++ = pci;
+ else if (pDefault)
+ *glyphs++ = pDefault;
+ }
+ }
+ break;
+ case Linear16Bit:
+ if (pFont->info.allExist && pDefault) {
+ while (count--) {
+ c = *chars++ << 8;
+ c = (c | *chars++) - firstCol;
+ if (c < numCols)
+ *glyphs++ = ACCESSENCODING(encoding,c);
+ else
+ *glyphs++ = pDefault;
+ }
+ } else {
+ while (count--) {
+ c = *chars++ << 8;
+ c = (c | *chars++) - firstCol;
+ if (c < numCols && (pci = ACCESSENCODING(encoding,c)))
+ *glyphs++ = pci;
+ else if (pDefault)
+ *glyphs++ = pDefault;
+ }
+ }
+ break;
+
+ case TwoD16Bit:
+ firstRow = pFont->info.firstRow;
+ numRows = pFont->info.lastRow - firstRow + 1;
+ while (count--) {
+ r = (*chars++) - firstRow;
+ c = (*chars++) - firstCol;
+ if (r < numRows && c < numCols &&
+ (pci = ACCESSENCODING(encoding, r * numCols + c)))
+ *glyphs++ = pci;
+ else if (pDefault)
+ *glyphs++ = pDefault;
+ }
+ break;
+ }
+ *glyphCount = glyphs - glyphsBase;
+ return Successful;
+}
+
+static CharInfoRec nonExistantChar;
+
+int
+bitmapGetMetrics(FontPtr pFont, unsigned long count, unsigned char *chars,
+ FontEncoding charEncoding,
+ unsigned long *glyphCount, /* RETURN */
+ xCharInfo **glyphs) /* RETURN */
+{
+ int ret;
+ xCharInfo *ink_metrics;
+ CharInfoPtr metrics;
+ BitmapFontPtr bitmapFont;
+ CharInfoPtr oldDefault;
+ int i;
+
+ bitmapFont = (BitmapFontPtr) pFont->fontPrivate;
+ oldDefault = bitmapFont->pDefault;
+ bitmapFont->pDefault = &nonExistantChar;
+ ret = bitmapGetGlyphs(pFont, count, chars, charEncoding, glyphCount, (CharInfoPtr *) glyphs);
+ if (ret == Successful) {
+ if (bitmapFont->ink_metrics) {
+ metrics = bitmapFont->metrics;
+ ink_metrics = bitmapFont->ink_metrics;
+ for (i = 0; i < *glyphCount; i++) {
+ if (glyphs[i] != (xCharInfo *) & nonExistantChar)
+ glyphs[i] = ink_metrics + (((CharInfoPtr) glyphs[i]) - metrics);
+ }
+ }
+ }
+ bitmapFont->pDefault = oldDefault;
+ return ret;
+}