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/* Copyright 2017 Adobe Systems Incorporated (http://www.adobe.com/). All Rights Reserved.
This software is licensed as OpenSource, under the Apache License, Version 2.0.
This license is available at: http://opensource.org/licenses/Apache-2.0. */
/*
* Dictionary support.
*/
#include "ctutil.h"
#include "cffwrite_varstore.h"
#include "cffwrite_dict.h"
#include <stdio.h>
/* Save byte int in DICT. */
void cfwDictSaveByteInt(DICT *dict, long i) {
char *arg = dnaEXTEND(*dict, 1);
arg[1] = (unsigned char)(i);
}
/* Save short int in DICT. */
void cfwDictSaveShortInt(DICT *dict, long i) {
char *arg = dnaEXTEND(*dict, 2);
arg[0] = (unsigned char)(i >> 8);
arg[1] = (unsigned char)i;
}
/* Save long int in DICT. */
void cfwDictSaveLongInt(DICT *dict, long i) {
char *arg = dnaEXTEND(*dict, 4);
arg[0] = (unsigned char)(i >> 24);
arg[1] = (unsigned char)(i >> 16);
arg[2] = (unsigned char)(i >> 8);
arg[3] = (unsigned char)i;
}
unsigned long getRegionListSize(variationRegionList *regionList) {
unsigned int size = 4 + regionList->regionCount * regionList->axisCount * 6;
return size;
}
unsigned long getDataItemSize(itemVariationDataSubtable *ds) {
unsigned int size = 6 + ds->regionCount * 2 + ds->itemCount * 2;
return size;
}
void writeRegionList(DICT *dst, variationRegionList *regionList) {
unsigned short i, j;
variationRegion *vr = &(regionList->regions.array[0]);
cfwDictSaveShortInt(dst, regionList->axisCount);
cfwDictSaveShortInt(dst, regionList->regionCount);
for (i = 0; i < regionList->regionCount; i++) {
for (j = 0; j < regionList->axisCount; j++) {
cfwDictSaveShortInt(dst, FIXED_TO_F2DOT14(vr->startCoord));
cfwDictSaveShortInt(dst, FIXED_TO_F2DOT14(vr->peakCoord));
cfwDictSaveShortInt(dst, FIXED_TO_F2DOT14(vr->endCoord));
vr++;
}
}
}
void writeDataItemList(DICT *dst, itemVariationDataSubtable *ivd) {
unsigned short i, cnt;
cfwDictSaveShortInt(dst, ivd->itemCount);
cfwDictSaveShortInt(dst, 0);
cfwDictSaveShortInt(dst, ivd->regionCount);
cnt = ivd->regionCount;
for (i = 0; i < cnt; i++) {
cfwDictSaveShortInt(dst, ivd->regionIndices.array[i]);
}
}
void cfwDictFillVarStore(cfwCtx g, DICT *dst, abfTopDict *top) {
int i;
var_itemVariationStore ivs = top->varStore;
unsigned long offset;
// Write place holder for length.
cfwDictSaveShortInt(dst, 0);
// write format
cfwDictSaveShortInt(dst, 1);
// write offset to RegionList.
// The Region list immediately follows the IVS header and offset to the dataItems.
offset = 8 + ivs->dataList.ivdSubtables.cnt * 4;
cfwDictSaveLongInt(dst, offset);
// write ItemVariationData count
cfwDictSaveShortInt(dst, ivs->dataList.ivdSubtables.cnt);
// write the offsets to the ItemVariationData items.
offset += getRegionListSize(&(ivs->regionList));
for (i = 0; i < ivs->dataList.ivdSubtables.cnt; i++) {
cfwDictSaveLongInt(dst, offset);
offset += getDataItemSize(&(ivs->dataList.ivdSubtables.array[i]));
}
writeRegionList(dst, &(ivs->regionList));
// write the ItemVariationData subtables
for (i = 0; i < ivs->dataList.ivdSubtables.cnt; i++) {
writeDataItemList(dst, &(ivs->dataList.ivdSubtables.array[i]));
}
// Write length
{
char *arg = &(dst->array[0]);
arg[0] = (unsigned char)(offset >> 8);
arg[1] = (unsigned char)offset;
}
}
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