#include <stdio.h>
#include <stdlib.h>
#include <memory.h>
-#include "bitio.h"
#include "log.h"
#include "os.h"
#include "mem.h"
w->memsize = v1>v2?v1:v2;
w->data = rfx_realloc(w->data, w->memsize);
}
-static void writeU8(ttf_table_t*w, unsigned char b)
+static inline void writeU8(ttf_table_t*w, unsigned char b)
{
if(w->memsize<w->len+1)
expand(w, w->len+1);
w->data[w->len++] = b;
}
-static void writeU16(ttf_table_t*w, unsigned short v)
+static inline void writeU16(ttf_table_t*w, unsigned short v)
{
if(w->memsize<w->len+2)
expand(w, w->len+2);
w->data[w->len++] = v;
}
#define writeS16 writeU16
-static void writeU32(ttf_table_t*w, unsigned long v)
+static inline void writeU32(ttf_table_t*w, unsigned long v)
{
if(w->memsize<w->len+4)
expand(w, w->len+4);
w->data[w->len++] = v>>8;
w->data[w->len++] = v;
}
-static void writeBlock(ttf_table_t*w, void*data, int len)
+static inline void writeBlock(ttf_table_t*w, void*data, int len)
{
if(w->memsize<w->len+len)
expand(w, w->len+len);
hexdump(t->data, t->len, prefix);
}
+static table_head_t*head_new(ttf_t*ttf)
+{
+ table_head_t*head = rfx_calloc(sizeof(table_head_t));
+ head->units_per_em = 1024;
+ int t;
+ if(ttf->num_glyphs) {
+ head->xmin = ttf->glyphs[0].xmin;
+ head->ymin = ttf->glyphs[0].ymin;
+ head->xmax = ttf->glyphs[0].xmax;
+ head->ymax = ttf->glyphs[0].ymax;
+ for(t=1;t<ttf->num_glyphs;t++) {
+ if(ttf->glyphs[t].xmin < head->xmin) head->xmin = ttf->glyphs[t].xmin;
+ if(ttf->glyphs[t].ymin < head->ymin) head->ymin = ttf->glyphs[t].ymin;
+ if(ttf->glyphs[t].xmax > head->xmax) head->xmax = ttf->glyphs[t].xmax;
+ if(ttf->glyphs[t].ymax > head->ymax) head->ymax = ttf->glyphs[t].ymax;
+ }
+ }
+ head->macStyle = 0;
+ head->lowest_readable_size = 8; // not sure what font renderers actually do with this
+ head->dir_hint = 0;
+ return head;
+}
+static int head_parse(ttf_t*ttf, memreader_t*r)
+{
+ ttf->head = rfx_calloc(sizeof(table_head_t));
+ U32 version = readU32(r);
+ if(version!=VERSION_1_0)
+ msg("<warning> Font HEAD has unknown version %08x", version);
+ U32 revision = readU32(r);
+ U32 checksum2 = readU32(r);
+ U32 magic = readU32(r);
+ if(magic!=0x5f0f3cf5)
+ msg("<warning> Font HEAD has unknown magic number %08x", magic);
+ ttf->head->flags = readU16(r);
+ ttf->head->units_per_em = readU16(r);
+ readU32(r);readU32(r); //created
+ readU32(r);readU32(r); //modified
+ ttf->head->xmin = readU16(r);
+ ttf->head->ymin = readU16(r);
+ ttf->head->xmax = readU16(r);
+ ttf->head->ymax = readU16(r);
+ ttf->head->macStyle = readU16(r);
+ ttf->head->lowest_readable_size = readU16(r); //in pixels
+ ttf->head->dir_hint = readS16(r);
+ int loc_index = readS16(r); //used in 'loca' table
+ if(loc_index>1)
+ msg("<warning> loca index format %d unknown", loc_index);
+ U16 glyph_data_format = readS16(r);
+ if(glyph_data_format!=0)
+ msg("<warning> Font glyph data format unknown: %04x", glyph_data_format);
+ if(r->pos < r->size) {
+ msg("<warning> Leftover bytes (%d) in HEAD tag", r->size - r->pos);
+ }
+ return loc_index;
+}
+static void head_write(ttf_t*ttf, ttf_table_t*w, int loca_size)
+{
+ writeU32(w, 0x10000);
+ writeU32(w, 0x10000);
+ writeU32(w, 0); //checksum
+ writeU32(w, 0x5f0f3cf5); //magic
+ writeU16(w, ttf->head->flags);
+ writeU16(w, ttf->head->units_per_em);
+ writeU32(w, 0);writeU32(w, 0); //created
+ writeU32(w, 0);writeU32(w, 0); //modified
+ writeU16(w, ttf->head->xmin);
+ writeU16(w, ttf->head->ymin);
+ writeU16(w, ttf->head->xmax);
+ writeU16(w, ttf->head->ymax);
+ writeU16(w, ttf->head->macStyle);
+ writeU16(w, ttf->head->lowest_readable_size);
+ writeS16(w, ttf->head->dir_hint);
+ writeS16(w, loca_size); //loca index size (32 bit)
+ writeS16(w, 0); //glyph data format
+}
+static void head_dump(ttf_t*ttf)
+{
+ printf("head->flags: %d\n", ttf->head->flags);
+ printf("head->units_per_em: %d\n", ttf->head->units_per_em);
+ printf("head->xmin: %d\n", ttf->head->xmin);
+ printf("head->ymin: %d\n", ttf->head->ymin);
+ printf("head->xmax: %d\n", ttf->head->xmax);
+ printf("head->ymax: %d\n", ttf->head->ymax);
+ printf("head->macStyle: %d\n", ttf->head->macStyle);
+ printf("head->lowest_readable_size: %d\n", ttf->head->lowest_readable_size);
+ printf("head->dir_hint: %d\n", ttf->head->dir_hint);
+}
+static void head_delete(ttf_t*ttf)
+{
+ if(ttf->head) {
+ free(ttf->head);
+ ttf->head=0;
+ }
+}
+
+static table_os2_t*os2_new(ttf_t*ttf)
+{
+ table_os2_t*os2 = rfx_calloc(sizeof(table_os2_t));
+ if(ttf->num_glyphs) {
+ int average_width=0;
+ int t;
+ for(t=0;t<ttf->num_glyphs;t++) {
+ average_width += (ttf->glyphs[t].advance + ttf->glyphs[t].bearing);
+ }
+ os2->xAvgCharWidth = average_width / ttf->num_glyphs;
+ }
+
+ /* that's what everybody seems to fill in */
+ os2->usWeightClass = 400;
+ os2->usWidthClass = 5;
+
+ if(ttf->head) {
+ int advance = (ttf->head->xmax - ttf->head->xmin)/2;
+ int height = (ttf->head->xmax - ttf->head->xmin);
+ int ymid = height/2;
+ /* I do believe a sane font rendering engine will actually use
+ the font advance here- the subscript/superscript position will
+ not be the same for each glyph */
+ os2->ySuperscriptXSize = os2->ySubscriptXSize = (ttf->head->xmax - ttf->head->xmin)/2;
+ os2->ySuperscriptYSize = os2->ySubscriptYSize = (ttf->head->ymax - ttf->head->ymin)/2;
+ os2->ySubscriptXOffset = advance;
+ os2->ySubscriptYOffset = 0;
+ os2->ySuperscriptXOffset = advance;
+ os2->ySuperscriptYOffset = (ttf->head->ymax - ttf->head->ymin)/2;
+ os2->yStrikeoutSize = ttf->head->units_per_em / 10;
+ os2->yStrikeoutPosition = ymid;
+ os2->usWinAscent = ttf->head->ymax;
+ os2->usWinDescent = ttf->head->ymin<0?0:ttf->head->ymin;
+ os2->sxHeight = ymid;
+ os2->sCapHeight = height*2/3;
+ }
+ os2->panose_Weight = 4;
+
+ /* strictly speaking we'd have to set 92/64 bits in these tables, depending on
+ what parts of the unicode table is filled. (e.g. bit 90 = tibetan). */
+ os2->ulCharRange[0] = 1;
+ os2->ulCharRange[1] = 0;
+ os2->ulCharRange[2] = 0;
+ os2->ulCharRange[3] = 0;
+ os2->ulCodePageRange1 = 1;
+ os2->ulCodePageRange2 = 0;
+
+ if(ttf->unicode_size) {
+ int min,max;
+ for(min=0;min<ttf->unicode_size;min++)
+ if(ttf->unicode[min]) break;
+ for(max=ttf->unicode_size-1;max>=0;max--)
+ if(ttf->unicode[max]) break;
+ if(min<=max) {
+ os2->fsFirstCharIndex = min;
+ os2->fsLastCharIndex = max;
+ }
+ }
+ os2->sTypoAscender = ttf->ascent;
+ os2->sTypoDescender = ttf->descent;
+ os2->sTypoLineGap = ttf->lineGap;
+
+ os2->usDefaultChar = 0;
+ os2->usBreakChar = (ttf->unicode_size>0x20 && ttf->unicode[0x20])?0x20:0;
+ os2->usMaxContext = 0; // we don't use ligatures yet
+ return os2;
+}
static table_os2_t*os2_parse(memreader_t*r)
{
table_os2_t*os2 = rfx_calloc(sizeof(table_os2_t));
U16 version = readU16(r);
- if(version!=0 && version!=1 && version!=2)
+ /* 0 = TrueType 1.5
+ 1 = TrueType 1.66
+ 2 = OpenType 1.2
+ 3 = OpenType 1.4 */
+ if(version!=0 && version!=1 && version!=2 && version!=3)
msg("<warning> Unknown OS2 version: %04x", version);
os2->xAvgCharWidth = readS16(r);
os2->usWeightClass = readU16(r);
os2->usWidthClass = readU16(r);
- os2->fsType = readU16(r);
+ readU16(r); //fstype
os2->ySubscriptXSize = readU16(r);
os2->ySubscriptYSize = readU16(r);
os2->ySubscriptXOffset = readU16(r);
os2->ulCharRange[1] = readU32(r);
os2->ulCharRange[2] = readU32(r);
os2->ulCharRange[3] = readU32(r);
- os2->achVendID[0] = readU8(r);
- os2->achVendID[1] = readU8(r);
- os2->achVendID[2] = readU8(r);
- os2->achVendID[3] = readU8(r);
+ readU32(r); //vendor
os2->fsSelection = readU16(r);
os2->fsFirstCharIndex = readU16(r);
os2->fsLastCharIndex = readU16(r);
os2->usDefaultChar = readU16(r);
os2->usBreakChar = readU16(r);
os2->usMaxContext = readU16(r);
+
+ if(r->pos < r->size) {
+ msg("<warning> Leftover bytes (%d) in OS2 tag", r->size - r->pos);
+ }
return os2;
}
-
-static os2_write(ttf_t*ttf, ttf_table_t*w)
+static void os2_write(ttf_t*ttf, ttf_table_t*w)
{
table_os2_t*os2 = ttf->os2;
U16 version=1;
writeS16(w, os2->xAvgCharWidth);
writeU16(w, os2->usWeightClass);
writeU16(w, os2->usWidthClass);
- writeU16(w, os2->fsType);
+ writeU16(w, 0); //fstype
writeU16(w, os2->ySubscriptXSize);
writeU16(w, os2->ySubscriptYSize);
writeU16(w, os2->ySubscriptXOffset);
writeU32(w, os2->ulCharRange[1]);
writeU32(w, os2->ulCharRange[2]);
writeU32(w, os2->ulCharRange[3]);
- writeU8(w, os2->achVendID[0]);
- writeU8(w, os2->achVendID[1]);
- writeU8(w, os2->achVendID[2]);
- writeU8(w, os2->achVendID[3]);
+ writeU32(w, 0x53434244); //vendor
writeU16(w, os2->fsSelection);
writeU16(w, os2->fsFirstCharIndex);
writeU16(w, os2->fsLastCharIndex);
writeU16(w, os2->usBreakChar);
writeU16(w, os2->usMaxContext);
}
-static void os2_delete(ttf_t*ttf)
-{
- if(ttf->os2)
- free(ttf->os2);
- ttf->os2=0;
-}
-
-static os2_dump(ttf_t*ttf)
+static void os2_dump(ttf_t*ttf)
{
table_os2_t*os2 = ttf->os2;
if(!os2) return;
printf("os2->xAvgCharWidth: %d\n", os2->xAvgCharWidth);
printf("os2->usWeightClass: %d\n", os2->usWeightClass);
printf("os2->usWidthClass: %d\n", os2->usWidthClass);
- printf("os2->fsType: %d\n", os2->fsType);
printf("os2->ySubscriptXSize: %d\n", os2->ySubscriptXSize);
printf("os2->ySubscriptYSize: %d\n", os2->ySubscriptYSize);
printf("os2->ySubscriptXOffset: %d\n", os2->ySubscriptXOffset);
printf("os2->ulCharRange[1]: %d\n", os2->ulCharRange[1]);
printf("os2->ulCharRange[2]: %d\n", os2->ulCharRange[2]);
printf("os2->ulCharRange[3]: %d\n", os2->ulCharRange[3]);
- printf("os2->achVendID[0]: %d\n", os2->achVendID[0]);
- printf("os2->achVendID[1]: %d\n", os2->achVendID[1]);
- printf("os2->achVendID[2]: %d\n", os2->achVendID[2]);
- printf("os2->achVendID[3]: %d\n", os2->achVendID[3]);
printf("os2->fsSelection: %d\n", os2->fsSelection);
printf("os2->fsFirstCharIndex: %d\n", os2->fsFirstCharIndex);
printf("os2->fsLastCharIndex: %d\n", os2->fsLastCharIndex);
printf("os2->usBreakChar: %d\n", os2->usBreakChar);
printf("os2->usMaxContext: %d\n", os2->usMaxContext);
}
-
-static int head_parse(ttf_t*ttf, memreader_t*r)
+static void os2_delete(ttf_t*ttf)
{
- ttf->head = rfx_calloc(sizeof(table_head_t));
- U32 version = readU32(r);
- if(version!=VERSION_1_0)
- msg("<warning> Font HEAD has unknown version %08x", version);
- U32 revision = readU32(r);
- if(revision!=VERSION_1_0)
- msg("<warning> Font HEAD has unknown revision %08x", revision);
- U32 checksum2 = readU32(r);
- U32 magic = readU32(r);
- if(magic!=0x5f0f3cf5)
- msg("<warning> Font HEAD has unknown magic number %08x", magic);
- ttf->head->flags = readU16(r);
- ttf->head->units_per_em = readU16(r);
- readU32(r);readU32(r); //created
- readU32(r);readU32(r); //modified
- ttf->head->xmin = readU16(r);
- ttf->head->ymin = readU16(r);
- ttf->head->xmax = readU16(r);
- ttf->head->ymax = readU16(r);
- ttf->head->macStyle = readU16(r);
- ttf->head->lowest_readable_size = readU16(r); //in pixels
- ttf->head->dir_hint = readS16(r);
- int loc_index = readS16(r); //used in 'loca' table
- if(loc_index>1)
- msg("<warning> loca index format %d unknown", loc_index);
- U16 glyph_data_format = readS16(r);
- if(glyph_data_format!=0)
- msg("<warning> Font glyph data format unknown: %04x", glyph_data_format);
- return loc_index;
+ if(ttf->os2)
+ free(ttf->os2);
+ ttf->os2=0;
}
-static void head_write(ttf_t*ttf, ttf_table_t*w, int loca_size)
-{
- writeU32(w, 0x10000);
- writeU32(w, 0x10000);
- writeU32(w, 0); //checksum
- writeU32(w, 0x5f0f3cf5); //magic
- writeU16(w, ttf->head->flags);
- writeU16(w, ttf->head->units_per_em);
- writeU32(w, 0);writeU32(w, 0); //created
- writeU32(w, 0);writeU32(w, 0); //modified
- writeU16(w, ttf->head->xmin);
- writeU16(w, ttf->head->ymin);
- writeU16(w, ttf->head->xmax);
- writeU16(w, ttf->head->ymax);
- writeU16(w, ttf->head->macStyle);
- writeU16(w, ttf->head->lowest_readable_size);
- writeS16(w, ttf->head->dir_hint);
- writeS16(w, loca_size); //loca index size (32 bit)
- writeS16(w, 0); //glyph data format
-}
-static void head_dump(ttf_t*ttf)
-{
- printf("head->flags: %d\n", ttf->head->flags);
- printf("head->units_per_em: %d\n", ttf->head->units_per_em);
- printf("head->xmin: %d\n", ttf->head->xmin);
- printf("head->ymin: %d\n", ttf->head->ymin);
- printf("head->xmax: %d\n", ttf->head->xmax);
- printf("head->ymax: %d\n", ttf->head->ymax);
- printf("head->macStyle: %d\n", ttf->head->macStyle);
- printf("head->lowest_readable_size: %d\n", ttf->head->lowest_readable_size);
- printf("head->dir_hint: %d\n", ttf->head->dir_hint);
-}
-static void head_delete(ttf_t*ttf)
+static table_maxp_t*maxp_new(ttf_t*ttf)
{
- if(ttf->head) {
- free(ttf->head);
- ttf->head=0;
+ table_maxp_t*maxp = rfx_calloc(sizeof(table_maxp_t));
+ int t;
+ if(ttf->num_glyphs) {
+ int max = 0;
+ for(t=0;t<ttf->num_glyphs;t++) {
+ if(ttf->glyphs[t].num_points>max)
+ max = ttf->glyphs[t].num_points;
+ int contours = 0;
+ int s;
+ for(s=0;s<ttf->glyphs[t].num_points;s++) {
+ if(ttf->glyphs[t].points[s].flags&GLYPH_CONTOUR_END)
+ contours++;
+ }
+ if(maxp->maxContours < contours)
+ maxp->maxContours = contours;
+ }
+ maxp->maxPoints = max;
+
+ /* we don't generate composite glyphs yet */
+ maxp->maxComponentPoints = 0;
+ maxp->maxComponentContours = 0;
}
+ return maxp;
}
-
static table_maxp_t* maxp_parse(ttf_t*ttf, memreader_t*r)
{
U32 version = readU32(r);
/* according to freetype, older fonts (version<0x10000)
apparently only contain the number of glyphs. this is
rather rare, though. */
- if(version<0x10000) return 0;
+ if(version<0x10000 && r->size==6) return 0;
+
+ if(r->size<32)
+ msg("<warning> Truncated maxp table (version %d)", version);
table_maxp_t*maxp = rfx_calloc(sizeof(table_maxp_t));
maxp->maxPoints = readU16(r);
maxp->maxComponentDepth = readU16(r);
return maxp;
}
-
static void maxp_write(ttf_t*ttf, ttf_table_t*w)
{
table_maxp_t*maxp = ttf->maxp;
+ if(!maxp) {
+ /* version 0.5 simplified maxp table */
+ writeU32(w, 0x00005000);
+ writeU16(w, ttf->num_glyphs);
+ return;
+ }
writeU32(w, 0x10000); //version
writeU16(w, ttf->num_glyphs);
writeU16(w, maxp->maxPoints);
writeU16(w, maxp->maxComponentElements);
writeU16(w, maxp->maxComponentDepth);
}
-
static void maxp_dump(ttf_t*ttf)
{
table_maxp_t*maxp = ttf->maxp;
printf("maxp->maxComponentElements: %d\n", maxp->maxComponentElements);
printf("maxp->maxComponentDepth: %d\n", maxp->maxComponentDepth);
}
-
static void maxp_delete(ttf_t*ttf)
{
if(ttf->maxp)
ttf->maxp=0;
}
-
+static table_hea_t*hea_new(ttf_t*ttf)
+{
+ table_hea_t*hea = rfx_calloc(sizeof(table_hea_t));
+ if(ttf->num_glyphs) {
+ int t;
+ for(t=0;t<ttf->num_glyphs;t++) {
+ if(ttf->glyphs[t].advance > hea->advanceWidthMax)
+ hea->advanceWidthMax = ttf->glyphs[t].advance;
+ if(ttf->glyphs[t].xmin < hea->minLeftSideBearing)
+ hea->minLeftSideBearing = ttf->glyphs[t].xmin;
+ if(ttf->glyphs[t].xmax < hea->minRightSideBearing)
+ hea->minRightSideBearing = ttf->glyphs[t].xmax;
+ int width = ttf->glyphs[t].xmax - ttf->glyphs[t].xmin;
+ if(width > hea->xMaxExtent)
+ hea->xMaxExtent = width;
+ }
+ /* TODO: caret */
+ }
+ return hea;
+}
static int hea_parse(memreader_t*r, ttf_t*ttf)
{
table_hea_t*hea = ttf->hea = rfx_calloc(sizeof(table_hea_t));
U32 version = readU32(r);
- hea->ascent = readS16(r);
- hea->descent = readS16(r);
- hea->lineGap = readS16(r);
+ ttf->ascent = readS16(r);
+ ttf->descent = readS16(r);
+ ttf->lineGap = readS16(r);
hea->advanceWidthMax = readU16(r);
hea->minLeftSideBearing = readS16(r);
hea->minRightSideBearing = readS16(r);
}
return num_advances;
}
-
static table_hea_t*hea_write(ttf_t*ttf, ttf_table_t*w, int num_advances)
{
table_hea_t*hea = ttf->hea;
writeU32(w, 0x00010000);
- writeS16(w, hea->ascent);
- writeS16(w, hea->descent);
- writeS16(w, hea->lineGap);
+ writeS16(w, ttf->ascent);
+ writeS16(w, ttf->descent);
+ writeS16(w, ttf->lineGap);
writeU16(w, hea->advanceWidthMax);
writeS16(w, hea->minLeftSideBearing);
writeS16(w, hea->minRightSideBearing);
static void hea_dump(ttf_t*ttf)
{
table_hea_t*hea = ttf->hea;
+ if(!hea) return;
const char*dir = ttf->is_vertical?"v":"h";
- printf("%shea->ascent: %d\n", dir, hea->ascent);
- printf("%shea->descent: %d\n", dir, hea->descent);
- printf("%shea->lineGap: %d\n", dir, hea->lineGap);
+ printf("%shea->ascent: %d\n", dir, ttf->ascent);
+ printf("%shea->descent: %d\n", dir, ttf->descent);
+ printf("%shea->lineGap: %d\n", dir, ttf->lineGap);
printf("%shea->advanceWidthMax: %d\n", dir, hea->advanceWidthMax);
printf("%shea->minLeftSideBearing: %d\n", dir, hea->minLeftSideBearing);
printf("%shea->minRightSideBearing: %d\n", dir, hea->minRightSideBearing);
}
}
-static void hmtx_parse(memreader_t*r, ttf_t*ttf, int num_advances)
+static void mtx_parse(memreader_t*r, ttf_t*ttf, int num_advances)
{
U16 old_advance = 0;
int t;
}
return num_advances;
}
+
static U32*loca_parse(memreader_t*r, ttf_t*ttf, int size)
{
int t;
int num = ttf->num_glyphs+1;
U32*locations = rfx_calloc(num*sizeof(U32));
+ U32 lastloc = 0;
+ U32 loc = 0;
+ char warn_unsorted = 1;
if(size) {
if(num*4 > r->size) {
- msg("<warning> Short 'loca' table (32 bit)");
+ msg("<warning> Short 'loca' table (32 bit): %d/%d", r->size/4, num);
num=r->size/4;
}
if(num*4 < r->size) {
msg("<warning> Extraneous data (%d bytes) in 'loca' table (32 bit)", r->size-num*4);
}
for(t=0;t<num;t++) {
- locations[t] = readU32(r);
+ locations[t] = loc = readU32(r);
+ if(lastloc > loc && warn_unsorted) {
+ msg("<warning> Unsorted 'loca' table (32 bit)");
+ warn_unsorted=0;
+ }
+ lastloc = loc;
}
} else {
if(num*2 > r->size) {
msg("<warning> Extraneous data (%d bytes) in 'loca' table (16 bit)", r->size-num*2);
}
for(t=0;t<num;t++) {
- locations[t] = readU16(r)*2;
+ locations[t] = loc = readU16(r)*2;
+ if(lastloc > loc && warn_unsorted) {
+ msg("<warning> Unsorted 'loca' table");
+ warn_unsorted=0;
+ }
+ lastloc = loc;
}
}
return locations;
return 0;
}
}
+
static int parse_simple_glyph(ttf_t*ttf, memreader_t*r, int num_contours, int glyphnr)
{
ttfglyph_t*glyph = &ttf->glyphs[glyphnr];
static void glyf_parse(memreader_t*rr, ttf_t*ttf, U32*loca)
{
int t;
- char warn_about_compound_glyphs=1;
+ char warn_about_compound_glyphs=0;
for(t=0;t<ttf->num_glyphs;t++) {
INIT_READ(r, rr->mem, rr->size, loca[t]);
+ if(loca[t]==loca[t+1] || loca[t]==r.size)
+ continue; //empty glyph
if(r.pos+10>r.size) {
- msg("<warning> Unexpected end of glyph array (or bad loca entry %d/%d)", loca[t], r.size);
+ msg("<warning> Truncated glyph entry %d/%d (or bad loca entry %d/%d, next loca: %d)",
+ t, ttf->num_glyphs, loca[t], r.size, loca[t+1]);
break;
}
S16 num_contours = readS16(&r);
}
}
-
void write_simple_glyph(ttf_table_t*w, ttfglyph_t*g)
{
/* endpoints array */
else if(dy) writeS16(w, dy);
}
}
-
U32* glyf_write(ttf_t* ttf, ttf_table_t*w)
{
U32*locations = malloc(sizeof(U32)*(ttf->num_glyphs+1));
}
void glyf_dump(ttf_t* ttf)
{
+ if(!ttf->glyphs) return;
int t;
for(t=0;t<ttf->num_glyphs;t++) {
ttfglyph_t*g = &ttf->glyphs[t];
hexdump(g->code, g->code_size, " ");
}
}
-
void glyf_delete(ttf_t* ttf)
{
if(!ttf->glyphs)
}
ttf->unicode_size = size;
}
-
void cmap_parse(memreader_t*r, ttf_t*ttf)
{
readU16(r); // version (0)
U16 delta = readU16(&r_delta);
U16 range = readU16(&r_range);
if(start==0xffff && end==0xffff && delta==1) {
- /* this is a common occurence in fonts which explicitly map
- "unicode undefined" (0xffff) to "glyph undefined" (0).
+ /* this is a common (maybe even required) occurence in fonts
+ which explicitly map "unicode undefined" (0xffff) to
+ "glyph undefined" (0).
We don't want to blow our unicode table up to 65536 just
because of this, so ignore this entry.
*/
}
}
}
-
static int segment_size(unicode_t*unicode, int pos, int size)
{
int s;
return size-1;
return s;
}
-
void cmap_write(ttf_t* ttf, ttf_table_t*w)
{
writeU16(w, 0); //version
pos = s+1;
num_segments++;
}
+
+ num_segments++; // account for 0xffff mapping
+
int t;
int end_pos = w->len;
for(t=0;t<num_segments;t++) {writeU16(w, 0);} //end array
int range_pos = w->len;
for(t=0;t<num_segments;t++) {writeU16(w, 0);} //range array
- w->data[num_segments_pos]=num_segments>>8;
- w->data[num_segments_pos+1]=num_segments;
+ w->data[num_segments_pos]=(num_segments*2)>>8;
+ w->data[num_segments_pos+1]=(num_segments*2);
pos=0;
num_segments = 0;
num_segments++;
pos = end+1;
}
+
+ /* write out a mapping from 0xffff to 0- seems to be required
+ by some libraries (e.g. fonttools) */
+ w->data[end_pos++]=0xff;
+ w->data[end_pos++]=0xff;
+ w->data[start_pos++]=0xff;
+ w->data[start_pos++]=0xff;
+ w->data[delta_pos++]=0;
+ w->data[delta_pos++]=1;
+ w->data[range_pos++]=0;
+ w->data[range_pos++]=0;
+
w->data[length_pos]=(w->len-20)>>8;
w->data[length_pos+1]=w->len-20;
}
table = ttf_find_table(ttf, TAG_HMTX);
if(table) {
INIT_READ(m, table->data, table->len, 0);
- hmtx_parse(&m, ttf, num_advances);
+ mtx_parse(&m, ttf, num_advances);
ttf_table_delete(ttf, table);
}
} else {
table = ttf_find_table(ttf, TAG_VMTX);
if(table) {
INIT_READ(m, table->data, table->len, 0);
- hmtx_parse(&m, ttf, num_advances);
+ mtx_parse(&m, ttf, num_advances);
ttf_table_delete(ttf, table);
}
} else {
static void ttf_collapse_tables(ttf_t*ttf)
{
ttf_table_t*table;
-
+
table = ttf_addtable(ttf, TAG_MAXP);
maxp_write(ttf, table);
maxp_delete(ttf);
head_delete(ttf);
}
-ttf_t* load_ttf(void*data, int length)
+ttf_t*ttf_new()
+{
+ ttf_t*ttf = rfx_calloc(sizeof(ttf_t));
+ ttf->version = VERSION_1_0;
+ return ttf;
+}
+ttf_t* ttf_load(void*data, int length)
{
INIT_READ(r,data,length, 0);
ttf_table_t*table = ttf_addtable(ttf, tag);
table->data = mem;
table->len = table->memsize = len;
-
+#if 0
U32 checksum2 = ttf_table_checksum(table);
if(checksum2!=checksum) {
msg("<warning> Checksum mismatch in tag %02x%02x%02x%02x %c%c%c%c (%d bytes) %08x!=%08x",
(tag>>24)&0xff, (tag>>16)&0xff, (tag>>8)&0xff, (tag)&0xff,
len, checksum2, checksum);
}
-
+#endif
}
}
free(table_data);
return ttf;
}
-
+void ttf_create_truetype_tables(ttf_t*ttf)
+{
+ if(!ttf->head)
+ ttf->head = head_new(ttf);
+ if(!ttf->maxp)
+ ttf->maxp = maxp_new(ttf);
+ if(!ttf->hea)
+ ttf->hea = hea_new(ttf);
+ if(!ttf->os2)
+ ttf->os2 = os2_new(ttf);
+}
ttf_table_t* ttf_write(ttf_t*ttf)
{
ttf_collapse_tables(ttf);
checksum2[3] = checksum>>0;
return file;
}
-
void ttf_save(ttf_t*ttf, const char*filename)
{
ttf_table_t* t = ttf_write(ttf);
fclose(fi);
ttf_table_delete(0, t);
}
-
void ttf_dump(ttf_t*ttf)
{
msg("<notice> Truetype file version %08x%s", ttf->version, ttf->version == OPENTYPE?" (opentype)":"");
filename = argv[1];
//msg("<notice> Loading %s", filename);
memfile_t*m = memfile_open(filename);
- ttf_t*ttf = load_ttf(m->data, m->len);
+ ttf_t*ttf = ttf_load(m->data, m->len);
if(!ttf) return 1;
memfile_close(m);
//ttf_dump(ttf);
//printf("os2 version: %04x (%d), maxp size: %d\n",
// ttf->os2->version, ttf->os2->size, ttf->maxp->size);
- ttf_save(ttf, "comic2.ttf");
+ ttf_save(ttf, "output.ttf");
ttf_destroy(ttf);
return 0;
git.asbjorn.biz / swftools.git / blobdiff