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/*
* Copyright (c) 2004, 2005, Eric M. Johnston <emj@postal.net>
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by Eric M. Johnston.
* 4. Neither the name of the author nor the names of any co-contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* $Id: sigma.c,v 1.6 2005/01/04 23:37:57 ejohnst Exp $
*/
/*
* Exif tag definitions for Sigma/Foveon maker notes.
* Developed from http://www.x3f.info/technotes/FileDocs/MakerNoteDoc.html.
*
*/
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "makers.h"
/* Maker note IFD tags. */
static struct exiftag sigma_tags[] = {
{ 0x0002, TIFF_ASCII, 0, ED_CAM, "SigmaSerial",
"Serial Number", NULL },
{ 0x0003, TIFF_ASCII, 0, ED_IMG, "SigmaDrive",
"Drive Mode", NULL },
{ 0x0004, TIFF_ASCII, 0, ED_IMG, "SigmaResolution",
"Resolution", NULL },
{ 0x0005, TIFF_ASCII, 0, ED_IMG, "SigmaAutofocus",
"Autofocus Mode", NULL },
{ 0x0006, TIFF_ASCII, 0, ED_IMG, "SigmaFocusSet",
"Focus Setting", NULL },
{ 0x0007, TIFF_ASCII, 0, ED_IMG, "SigmaWhiteBal",
"White Balance", NULL },
{ 0x0008, TIFF_ASCII, 0, ED_IMG, "SigmaExpMode",
"Exposure Mode", NULL },
{ 0x0009, TIFF_ASCII, 0, ED_IMG, "SigmaMeterMode",
"Metering Mode", NULL },
{ 0x000a, TIFF_ASCII, 0, ED_CAM, "SigmaLensRange",
"Focal Length Range", NULL },
{ 0x000b, TIFF_ASCII, 0, ED_VRB, "SigmaColor",
"Color Space", NULL },
{ 0x000c, TIFF_ASCII, 0, ED_IMG, "SigmaExposure",
"Exposure", NULL },
{ 0x000d, TIFF_ASCII, 0, ED_IMG, "SigmaContrast",
"Contrast", NULL },
{ 0x000e, TIFF_ASCII, 0, ED_IMG, "SigmaShadow",
"Shadow", NULL },
{ 0x000f, TIFF_ASCII, 0, ED_IMG, "SigmaHighlight",
"Highlight", NULL },
{ 0x0010, TIFF_ASCII, 0, ED_IMG, "SigmaSaturate",
"Saturation", NULL },
{ 0x0011, TIFF_ASCII, 0, ED_IMG, "SigmaSharp",
"Sharpness", NULL },
{ 0x0012, TIFF_ASCII, 0, ED_IMG, "SigmaFill",
"Fill Light", NULL },
{ 0x0014, TIFF_ASCII, 0, ED_IMG, "SigmaColorAdj",
"Color Adjustment", NULL },
{ 0x0015, TIFF_ASCII, 0, ED_IMG, "SigmaAdjMode",
"Adjustment Mode", NULL },
{ 0x0016, TIFF_ASCII, 0, ED_IMG, "SigmaQuality",
"Quality", NULL },
{ 0x0017, TIFF_ASCII, 0, ED_CAM, "SigmaFirmware",
"Firmware Version", NULL },
{ 0x0018, TIFF_ASCII, 0, ED_CAM, "SigmaSoftware",
"Camera Software", NULL },
{ 0x0019, TIFF_ASCII, 0, ED_IMG, "SigmaAutoBrack",
"Auto Bracket", NULL },
{ 0xffff, TIFF_UNKN, 0, ED_UNK, "SigmaUnknown",
"Sigma Unknown", NULL },
};
static void
sigma_deprefix(char *str, const char *prefix)
{
int l;
l = strlen(prefix);
if (!strncmp(str, prefix, l))
memmove(str, str + l, strlen(str + l) + 1);
}
/*
* Process Sigma maker note tags.
*/
void
sigma_prop(struct exifprop *prop, struct exiftags *t)
{
/* Couldn't grok the value somewhere upstream, so nevermind. */
if (prop->type == TIFF_ASCII && !prop->str)
return;
/*
* For these, I suppose it's safe to assume that the value prefix
* will always be the same. But, for safety's sake...
*/
switch (prop->tag) {
case 0x000c:
sigma_deprefix(prop->str, "Expo:");
break;
case 0x000d:
sigma_deprefix(prop->str, "Cont:");
break;
case 0x000e:
sigma_deprefix(prop->str, "Shad:");
break;
case 0x000f:
sigma_deprefix(prop->str, "High:");
break;
case 0x0010:
sigma_deprefix(prop->str, "Satu:");
break;
case 0x0011:
sigma_deprefix(prop->str, "Shar:");
break;
case 0x0012:
sigma_deprefix(prop->str, "Fill:");
break;
case 0x0014:
sigma_deprefix(prop->str, "CC:");
break;
case 0x0016:
sigma_deprefix(prop->str, "Qual:");
break;
}
}
/*
* Try to read a Sigma maker note IFD.
*/
struct ifd *
sigma_ifd(u_int32_t offset, struct tiffmeta *md)
{
/*
* The IFD starts after an 10 byte ID string offset. The first
* 8 bytes are a usual offset, but the next two bytes might be a
* version of some sort. For now, we'll ignore it...
*/
if (memcmp("SIGMA\0\0\0", md->btiff + offset, 8) ||
memcmp("FOVEON\0\0", md->btiff + offset, 8))
return (readifds(offset + 10, sigma_tags, md));
exifwarn("Sigma maker note version not supported");
return (NULL);
}
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