+++ /dev/null
-/* $XConsortium: bitmap.c,v 1.5 94/04/17 20:17:11 gildea Exp $ */
-
-/*
-
-Copyright (c) 1991 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.
-
-*/
-
-/*
- * Author: Keith Packard, MIT X Consortium
- */
-
-#include "fntfilst.h"
-#include "bitmap.h"
-
-int bitmapGetGlyphs(), bitmapGetMetrics();
-int bitmapGetBitmaps(), bitmapGetExtents();
-void bitmapComputeFontBounds ();
-void bitmapComputeFontInkBounds ();
-
-int
-bitmapGetGlyphs(pFont, count, chars, charEncoding, glyphCount, glyphs)
- FontPtr pFont;
- unsigned long count;
- register 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++ = encoding[c];
- else
- *glyphs++ = pDefault;
- }
- } else {
- while (count--) {
- c = (*chars++) - firstCol;
- if (c < numCols && (pci = 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++ = encoding[c];
- else
- *glyphs++ = pDefault;
- }
- } else {
- while (count--) {
- c = *chars++ << 8;
- c = (c | *chars++) - firstCol;
- if (c < numCols && (pci = 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 = encoding[r * numCols + c]))
- *glyphs++ = pci;
- else if (pDefault)
- *glyphs++ = pDefault;
- }
- break;
- }
- *glyphCount = glyphs - glyphsBase;
- return Successful;
-}
-
-static CharInfoRec nonExistantChar;
-
-int
-bitmapGetMetrics(pFont, count, chars, charEncoding, glyphCount, glyphs)
- FontPtr pFont;
- unsigned long count;
- register 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;
-}