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Diffstat (limited to 'src/util/format.c')
| -rw-r--r-- | src/util/format.c | 121 |
1 files changed, 121 insertions, 0 deletions
diff --git a/src/util/format.c b/src/util/format.c new file mode 100644 index 0000000..615f0ee --- /dev/null +++ b/src/util/format.c @@ -0,0 +1,121 @@ +/* $Xorg: format.c,v 1.4 2001/02/09 02:04:04 xorgcvs Exp $ */ +/* + * Copyright 1990, 1991 Network Computing Devices; + * Portions Copyright 1987 by Digital Equipment Corporation + * + * 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, and that the names of Network Computing Devices or Digital + * not be used in advertising or publicity pertaining to distribution of the + * software without specific, written prior permission. Network Computing + * Devices and Digital make no representations about the suitability of + * this software for any purpose. It is provided "as is" without express + * or implied warranty. + * + * NETWORK COMPUTING DEVICES AND DIGITAL DISCLAIM ALL WARRANTIES WITH + * REGARD TO THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY + * AND FITNESS, IN NO EVENT SHALL NETWORK COMPUTING DEVICES OR 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. + */ + +/* + +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. + +*/ + +#include "FSproto.h" +#include "font.h" + +int +CheckFSFormat(format, fmask, bit_order, byte_order, scan, glyph, image) + fsBitmapFormat format; + fsBitmapFormatMask fmask; + int *bit_order, + *byte_order, + *scan, + *glyph, + *image; +{ + /* convert format to what the low levels want */ + if (fmask & BitmapFormatMaskBit) { + *bit_order = format & BitmapFormatBitOrderMask; + *bit_order = (*bit_order == BitmapFormatBitOrderMSB) + ? MSBFirst : LSBFirst; + } + if (fmask & BitmapFormatMaskByte) { + *byte_order = format & BitmapFormatByteOrderMask; + *byte_order = (*byte_order == BitmapFormatByteOrderMSB) + ? MSBFirst : LSBFirst; + } + if (fmask & BitmapFormatMaskScanLineUnit) { + *scan = format & BitmapFormatScanlineUnitMask; + /* convert byte paddings into byte counts */ + switch (*scan) { + case BitmapFormatScanlineUnit8: + *scan = 1; + break; + case BitmapFormatScanlineUnit16: + *scan = 2; + break; + case BitmapFormatScanlineUnit32: + *scan = 4; + break; + default: + return BadFontFormat; + } + } + if (fmask & BitmapFormatMaskScanLinePad) { + *glyph = format & BitmapFormatScanlinePadMask; + /* convert byte paddings into byte counts */ + switch (*glyph) { + case BitmapFormatScanlinePad8: + *glyph = 1; + break; + case BitmapFormatScanlinePad16: + *glyph = 2; + break; + case BitmapFormatScanlinePad32: + *glyph = 4; + break; + default: + return BadFontFormat; + } + } + if (fmask & BitmapFormatMaskImageRectangle) { + *image = format & BitmapFormatImageRectMask; + + if (*image != BitmapFormatImageRectMin && + *image != BitmapFormatImageRectMaxWidth && + *image != BitmapFormatImageRectMax) + return BadFontFormat; + } + return Successful; +} |