--- /dev/null
+/* $XConsortium: bitmaputil.c,v 1.6 94/04/17 20:17:12 gildea Exp $ */
+
+/*
+
+Copyright (c) 1990, 1994 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.
+
+*/
+
+#include "fntfilst.h"
+#include "bitmap.h"
+
+#ifndef MAXSHORT
+#define MAXSHORT 32767
+#endif
+
+#ifndef MINSHORT
+#define MINSHORT -32768
+#endif
+
+static xCharInfo initMinMetrics = {
+MAXSHORT, MAXSHORT, MAXSHORT, MAXSHORT, MAXSHORT, 0xFFFF};
+static xCharInfo initMaxMetrics = {
+MINSHORT, MINSHORT, MINSHORT, MINSHORT, MINSHORT, 0x0000};
+
+#define MINMAX(field,ci) \
+ if (minbounds->field > (ci)->field) \
+ minbounds->field = (ci)->field; \
+ if (maxbounds->field < (ci)->field) \
+ maxbounds->field = (ci)->field;
+
+#define COMPUTE_MINMAX(ci) \
+ if ((ci)->ascent != -(ci)->descent || \
+ (ci)->leftSideBearing != (ci)->rightSideBearing || \
+ (ci)->characterWidth) \
+ { \
+ MINMAX(ascent, (ci)); \
+ MINMAX(descent, (ci)); \
+ MINMAX(leftSideBearing, (ci)); \
+ MINMAX(rightSideBearing, (ci)); \
+ MINMAX(characterWidth, (ci)); \
+ }
+
+void
+bitmapComputeFontBounds(pFont)
+ FontPtr pFont;
+{
+ BitmapFontPtr bitmapFont = (BitmapFontPtr) pFont->fontPrivate;
+ int nchars;
+ int r,
+ c;
+ CharInfoPtr ci,
+ *pci;
+ int maxOverlap;
+ int overlap;
+ xCharInfo *minbounds,
+ *maxbounds;
+ int i;
+ int numneg = 0, numpos = 0;
+
+ if (bitmapFont->bitmapExtra) {
+ minbounds = &bitmapFont->bitmapExtra->info.minbounds;
+ maxbounds = &bitmapFont->bitmapExtra->info.maxbounds;
+ } else {
+ minbounds = &pFont->info.minbounds;
+ maxbounds = &pFont->info.maxbounds;
+ }
+ *minbounds = initMinMetrics;
+ *maxbounds = initMaxMetrics;
+ maxOverlap = MINSHORT;
+ nchars = bitmapFont->num_chars;
+ for (i = 0, ci = bitmapFont->metrics; i < nchars; i++, ci++) {
+ COMPUTE_MINMAX(&ci->metrics);
+ if (ci->metrics.characterWidth < 0)
+ numneg++;
+ else
+ numpos++;
+ minbounds->attributes &= ci->metrics.attributes;
+ maxbounds->attributes |= ci->metrics.attributes;
+ overlap = ci->metrics.rightSideBearing - ci->metrics.characterWidth;
+ if (maxOverlap < overlap)
+ maxOverlap = overlap;
+ }
+ if (bitmapFont->bitmapExtra) {
+ if (numneg > numpos)
+ bitmapFont->bitmapExtra->info.drawDirection = RightToLeft;
+ else
+ bitmapFont->bitmapExtra->info.drawDirection = LeftToRight;
+ bitmapFont->bitmapExtra->info.maxOverlap = maxOverlap;
+ minbounds = &pFont->info.minbounds;
+ maxbounds = &pFont->info.maxbounds;
+ *minbounds = initMinMetrics;
+ *maxbounds = initMaxMetrics;
+ pci = bitmapFont->encoding;
+ maxOverlap = MINSHORT;
+ for (r = pFont->info.firstRow; r <= pFont->info.lastRow; r++) {
+ for (c = pFont->info.firstCol; c <= pFont->info.lastCol; c++) {
+ ci = *pci++;
+ if (ci) {
+ COMPUTE_MINMAX(&ci->metrics);
+ if (ci->metrics.characterWidth < 0)
+ numneg++;
+ else
+ numpos++;
+ minbounds->attributes &= ci->metrics.attributes;
+ maxbounds->attributes |= ci->metrics.attributes;
+ overlap = ci->metrics.rightSideBearing -
+ ci->metrics.characterWidth;
+ if (maxOverlap < overlap)
+ maxOverlap = overlap;
+ }
+ }
+ }
+ }
+ if (numneg > numpos)
+ pFont->info.drawDirection = RightToLeft;
+ else
+ pFont->info.drawDirection = LeftToRight;
+ pFont->info.maxOverlap = maxOverlap;
+}
+
+void
+bitmapComputeFontInkBounds(pFont)
+ FontPtr pFont;
+{
+ BitmapFontPtr bitmapFont = (BitmapFontPtr) pFont->fontPrivate;
+ int nchars;
+ int r,
+ c;
+ CharInfoPtr *pci,
+ cit;
+ xCharInfo *ci;
+ int offset;
+ xCharInfo *minbounds,
+ *maxbounds;
+ int i;
+
+ if (!bitmapFont->ink_metrics) {
+ if (bitmapFont->bitmapExtra) {
+ bitmapFont->bitmapExtra->info.ink_minbounds = bitmapFont->bitmapExtra->info.minbounds;
+ bitmapFont->bitmapExtra->info.ink_maxbounds = bitmapFont->bitmapExtra->info.maxbounds;
+ }
+ pFont->info.ink_minbounds = pFont->info.minbounds;
+ pFont->info.ink_maxbounds = pFont->info.maxbounds;
+ } else {
+ if (bitmapFont->bitmapExtra) {
+ minbounds = &bitmapFont->bitmapExtra->info.ink_minbounds;
+ maxbounds = &bitmapFont->bitmapExtra->info.ink_maxbounds;
+ } else {
+ minbounds = &pFont->info.ink_minbounds;
+ maxbounds = &pFont->info.ink_maxbounds;
+ }
+ *minbounds = initMinMetrics;
+ *maxbounds = initMaxMetrics;
+ nchars = bitmapFont->num_chars;
+ for (i = 0, ci = bitmapFont->ink_metrics; i < nchars; i++, ci++) {
+ COMPUTE_MINMAX(ci);
+ minbounds->attributes &= ci->attributes;
+ maxbounds->attributes |= ci->attributes;
+ }
+ if (bitmapFont->bitmapExtra) {
+ minbounds = &pFont->info.ink_minbounds;
+ maxbounds = &pFont->info.ink_maxbounds;
+ *minbounds = initMinMetrics;
+ *maxbounds = initMaxMetrics;
+ pci = bitmapFont->encoding;
+ for (r = pFont->info.firstRow; r <= pFont->info.lastRow; r++) {
+ for (c = pFont->info.firstCol; c <= pFont->info.lastCol; c++) {
+ cit = *pci++;
+ if (cit) {
+ offset = cit - bitmapFont->metrics;
+ ci = &bitmapFont->ink_metrics[offset];
+ COMPUTE_MINMAX(ci);
+ minbounds->attributes &= ci->attributes;
+ maxbounds->attributes |= ci->attributes;
+ }
+ }
+ }
+ }
+ }
+}
+
+Bool
+bitmapAddInkMetrics(pFont)
+ FontPtr pFont;
+{
+ BitmapFontPtr bitmapFont;
+ int i;
+
+ bitmapFont = (BitmapFontPtr) pFont->fontPrivate;
+ bitmapFont->ink_metrics = (xCharInfo *) xalloc(bitmapFont->num_chars * sizeof(xCharInfo));
+ if (!bitmapFont->ink_metrics)
+ return FALSE;
+ for (i = 0; i < bitmapFont->num_chars; i++)
+ FontCharInkMetrics(pFont, &bitmapFont->metrics[i], &bitmapFont->ink_metrics[i]);
+ pFont->info.inkMetrics = TRUE;
+ return TRUE;
+}
+
+/* ARGSUSED */
+int
+bitmapComputeWeight(pFont)
+ FontPtr pFont;
+{
+ return 10;
+}
projects / rdpsrv / blobdiff