void Main_Write (void)
{
USB_INT32S fdw;
USB_INT32S fdr;
USB_INT32U tot_bytes_written;
USB_INT32U bytes_written;
fdr = FILE_Open(FILENAME_R, RDONLY);
if (fdr > 0) {
FILE_Read(fdr, UserBuffer, MAX_BUFFER_SIZE);
fdw = FILE_Open(FILENAME_W, RDWR);
if (fdw > 0) {
tot_bytes_written = 0;
PRINT_Log("Writing to %s...\n", FILENAME_W);
do {
bytes_written = FILE_Write(fdw, UserBuffer, MAX_BUFFER_SIZE);
tot_bytes_written += bytes_written;
} while (tot_bytes_written < WRITE_SIZE);
FILE_Close(fdw);
PRINT_Log("Write completed\n");
} else {
PRINT_Log("Could not open file %s\n", FILENAME_W);
return;
}
FILE_Close(fdr);
} else {
PRINT_Log("Could not open file %s\n", FILENAME_R);
return;
}
}
void Main_Copy (void)
{
USB_INT32S fdr;
USB_INT32S fdw;
USB_INT32U bytes_read;
fdr = FILE_Open(FILENAME_R, RDONLY);
if (fdr > 0) {
fdw = FILE_Open(FILENAME_W, RDWR);
if (fdw > 0) {
PRINT_Log("Copying from %s to %s...\n", FILENAME_R, FILENAME_W);
do {
bytes_read = FILE_Read(fdr, UserBuffer, MAX_BUFFER_SIZE);
FILE_Write(fdw, UserBuffer, bytes_read);
} while (bytes_read);
FILE_Close(fdw);
} else {
PRINT_Log("Could not open file %s\n", FILENAME_W);
return;
}
FILE_Close(fdr);
PRINT_Log("Copy completed\n");
} else {
PRINT_Log("Could not open file %s\n", FILENAME_R);
return;
}
}
void Main_Read (void)
{
USB_INT32S fdr;
USB_INT32U bytes_read;
fdr = FILE_Open(FILENAME_R, RDONLY);
if (fdr > 0) {
PRINT_Log("Reading from %s...\n", FILENAME_R);
do {
bytes_read = FILE_Read(fdr, UserBuffer, MAX_BUFFER_SIZE);
} while (bytes_read);
FILE_Close(fdr);
PRINT_Log("Read Complete\n");
} else {
PRINT_Log("Could not open file %s\n", FILENAME_R);
return;
}
}
/**
* Reads a byte from a gz_stream; update next_in and avail_in.
* Return zipEOF for end of file. Assumes that the stream zf has been
* sucessfully opened for reading.
*/
STATIC int ZipGetByte(Zip * zf)
{
if (!(zf->zflags & (ZIP_IN_ERR | ZIP_IN_EOF))) {
if (zf->in->avail_in == 0) {
int nbytes = FILE_Read(zf->f, zf->inbuf, zf->bufsize);
if (nbytes == 0) {
zf->zflags |= ZIP_IN_EOF;
return EOF;
} else if (nbytes < 0) {
zf->zflags |= ZIP_IN_ERR;
return EOF;
}
zf->in->avail_in = nbytes;
zf->in->next_in = zf->inbuf;
}
zf->in->avail_in--;
return *((zf->in->next_in)++);
}
return EOF;
}
/**
* This routine runs EXPAT parser
*/
Bool XML_ParseStream(File * f, const XMLCallbacks * cb, void * ctx)
{
XML_Parser parser;
Bool ok = False;
/* set up memory management functions */
XML_Memory_Handling_Suite mem;
memset(&mem, 0, sizeof(mem));
mem.malloc_fcn = MEM_Alloc;
mem.realloc_fcn = MEM_Realloc;
mem.free_fcn = MEM_Free;
/* create parser */
parser = XML_ParserCreate_MM(NULL,&mem,NULL);
if (parser) {
int bufsize = 4096;
void * buf = NULL;
Bool done = False;
/* initialize EXPAT */
ExpatContext expat;
expat.ctx = ctx;
expat.cb = (*cb);
STRBUF_Init(&expat.sb);
BUFFER_Init(&expat.buf);
VECTOR_Init(&expat.atts, 0, NULL, NULL);
/* initialize the parser */
XML_SetElementHandler(parser, EXPAT_StartElement, EXPAT_EndElement);
XML_SetCharacterDataHandler(parser, EXPAT_Characters);
XML_SetUserData(parser, &expat);
/*
* By obtaining the buffer from Expat with the XML_GetBuffer,
* we can avoid double copying of the input.
*/
ok = True;
while (ok && !done && (buf = XML_GetBuffer(parser,bufsize)) != NULL) {
int len = -1;
if (!FILE_Eof(f)) {
len = FILE_Read(f, buf, bufsize);
}
if (len <= 0) {
done = True;
len = 0;
}
ok = XML_ParseBuffer(parser, len, done);
}
#if DEBUG
if (!ok) {
enum XML_Error code = XML_GetErrorCode(parser);
int l = XML_GetCurrentLineNumber(parser);
int c = XML_GetCurrentColumnNumber(parser);
Str fname = FILE_Name(f);
const char * msg = XML_ErrorString(code);
if (!fname) fname = TEXT("<noname>");
if (!msg) msg = "<no message>";
# ifdef _WIN32
TRACE4("EXPAT: %s: line %d, column %d: %hs\n",fname,l,c,msg);
# else /* _WIN32 */
TRACE4("EXPAT: %s: line %d, column %d: %s\n",fname,l,c,msg);
# endif /* _WIN32 */
}
#endif /* DEBUG */
if (!buf) ok = False;
/* deallocate parser */
XML_ParserFree(parser);
STRBUF_Destroy(&expat.sb);
BUFFER_Destroy(&expat.buf);
VECTOR_Destroy(&expat.atts);
}
return (ok);
}
static
FT_Error Load_Format_25( TT_Face face,
FT_Stream stream )
{
FT_Memory memory = stream->memory;
FT_Error error;
FT_Int num_glyphs;
FT_Char* offset_table = 0;
/* UNDOCUMENTED! This value appears only in the Apple TT specs. */
if ( READ_UShort( num_glyphs ) )
goto Exit;
/* check the number of glyphs */
if ( num_glyphs > face->root.num_glyphs || num_glyphs > 258 )
{
error = TT_Err_Invalid_File_Format;
goto Exit;
}
if ( ALLOC ( offset_table, num_glyphs ) ||
FILE_Read( offset_table, num_glyphs ) )
goto Fail;
/* now check the offset table */
{
FT_Int n;
for ( n = 0; n < num_glyphs; n++ )
{
FT_Long index = (FT_Long)n + offset_table[n];
if ( index < 0 || index > num_glyphs )
{
error = TT_Err_Invalid_File_Format;
goto Fail;
}
}
}
/* OK, set table fields and exit successfuly */
{
TT_Post_25* table = &face->postscript_names.names.format_25;
table->num_glyphs = num_glyphs;
table->offsets = offset_table;
}
return TT_Err_Ok;
Fail:
FREE( offset_table );
Exit:
return error;
}
static
FT_Error Load_Format_20( TT_Face face,
FT_Stream stream )
{
FT_Memory memory = stream->memory;
FT_Error error;
FT_Int num_glyphs;
FT_UShort num_names;
FT_UShort* glyph_indices = 0;
FT_Char** name_strings = 0;
if ( READ_UShort( num_glyphs ) )
goto Exit;
/* UNDOCUMENTED! The number of glyphs in this table can be smaller */
/* than the value in the maxp table (cf. cyberbit.ttf). */
/* There already exist fonts which have more than 32768 glyph names */
/* in this table, so the test for this threshold has been dropped. */
if ( num_glyphs > face->root.num_glyphs )
{
error = TT_Err_Invalid_File_Format;
goto Exit;
}
/* load the indices */
{
FT_Int n;
if ( ALLOC_ARRAY ( glyph_indices, num_glyphs, FT_UShort ) ||
ACCESS_Frame( num_glyphs * 2L ) )
goto Fail;
for ( n = 0; n < num_glyphs; n++ )
glyph_indices[n] = GET_UShort();
FORGET_Frame();
}
/* compute number of names stored in table */
{
FT_Int n;
num_names = 0;
for ( n = 0; n < num_glyphs; n++ )
{
FT_Int index;
index = glyph_indices[n];
if ( index >= 258 )
{
index -= 257;
if ( index > num_names )
num_names = index;
}
}
}
/* now load the name strings */
{
FT_UShort n;
if ( ALLOC_ARRAY( name_strings, num_names, FT_Char* ) )
goto Fail;
for ( n = 0; n < num_names; n++ )
{
FT_UInt len;
if ( READ_Byte ( len ) ||
ALLOC_ARRAY( name_strings[n], len + 1, FT_Char ) ||
FILE_Read ( name_strings[n], len ) )
goto Fail1;
name_strings[n][len] = '\0';
}
}
/* all right, set table fields and exit successfuly */
{
TT_Post_20* table = &face->postscript_names.names.format_20;
table->num_glyphs = num_glyphs;
table->num_names = num_names;
table->glyph_indices = glyph_indices;
table->glyph_names = name_strings;
}
return TT_Err_Ok;
Fail1:
{
FT_UShort n;
for ( n = 0; n < num_names; n++ )
FREE( name_strings[n] );
}
Fail:
FREE( name_strings );
FREE( glyph_indices );
Exit:
return error;
}
/**
* Reads and uncompresses up to len bytes from the compressed stream.
* Returns -1 in case of error, 0 if end of file has been reached (-1 on
* subequent calls)
*/
STATIC int ZipRead(File * f, void * buf, int len)
{
Zip * zf = ZipCast(f);
/* check if input is transparent */
if (!(zf->zflags & ZIP_IN)) {
int nbytes = FILE_Read(zf->f, buf, len);
if (nbytes == 0) {
zf->zflags |= (ZIP_IN_EOF | ZIP_EOF);
} else if (nbytes < 0) {
zf->zflags |= ZIP_IN_ERR;
}
return nbytes;
}
/* check for error or end-of-file condition */
if (zf->zflags & (ZIP_IN_ERR | ZIP_EOF)) {
return -1;
}
/* report end-of-file condition to the caller */
if (zf->zflags & ZIP_IN_END) {
zf->zflags |= ZIP_EOF;
return 0;
}
/* check if we can read from the low level file */
if (!FILE_AllowsReads(zf->f)) {
zf->zflags |= ZIP_IN_ERR;
return -1;
}
/* "lazy" allocation of the input context */
if (!zf->in) {
if (!ZipInitIn(zf)) {
return -1;
}
}
/* read and inflate the data */
zf->in->next_out = (Bytef*)buf;
zf->in->avail_out = len;
while (zf->in->avail_out > 0 && !(zf->zflags & (ZIP_IN_ERR|ZIP_IN_END))) {
int zerr;
if (zf->in->avail_in == 0 && !(zf->zflags & ZIP_IN_EOF)) {
int nbytes = FILE_Read(zf->f, zf->inbuf, zf->bufsize);
if (nbytes == 0) {
zf->zflags |= ZIP_IN_EOF;
} else if (nbytes < 0) {
zf->zflags |= ZIP_IN_ERR;
break;
}
zf->in->avail_in = nbytes;
zf->in->next_in = zf->inbuf;
}
zerr = inflate(zf->in, Z_NO_FLUSH);
if (zerr == Z_STREAM_END) {
inflateReset(zf->in);
zf->zflags |= ZIP_IN_END;
} else if (zerr != Z_OK) {
zf->zflags |= ZIP_IN_ERR;
break;
}
}
/*
* return error or end-of-file condition if nothing has been
* decompressed, otherwise return the amount we have successfully
* inflated.
*/
if (len == (int)zf->in->avail_out) {
if (zf->zflags & ZIP_IN_EOF) {
zf->zflags |= ZIP_EOF;
return 0;
}
if (zf->zflags & ZIP_IN_ERR) {
return -1;
}
/* what would this mean? there's no data and yet it's not an error */
zf->zflags |= ZIP_EOF;
return 0;
} else {
zf->incrc = crc32(zf->incrc, (Bytef*)buf, len - zf->in->avail_out);
return (len - zf->in->avail_out);
}
}
FT_LOCAL_DEF
FT_Error TT_CharMap_Load( TT_Face face,
TT_CMapTable* cmap,
FT_Stream stream )
{
FT_Error error;
FT_Memory memory;
FT_UShort num_SH, num_Seg, i;
FT_UShort u, l;
TT_CMap0* cmap0;
TT_CMap2* cmap2;
TT_CMap4* cmap4;
TT_CMap6* cmap6;
TT_CMap2SubHeader* cmap2sub;
TT_CMap4Segment* segments;
if ( cmap->loaded )
return TT_Err_Ok;
memory = stream->memory;
if ( FILE_Seek( cmap->offset ) )
return error;
switch ( cmap->format )
{
case 0:
cmap0 = &cmap->c.cmap0;
if ( ALLOC( cmap0->glyphIdArray, 256L ) ||
FILE_Read( cmap0->glyphIdArray, 256L ) )
goto Fail;
cmap->get_index = code_to_index0;
break;
case 2:
num_SH = 0;
cmap2 = &cmap->c.cmap2;
/* allocate subheader keys */
if ( ALLOC_ARRAY( cmap2->subHeaderKeys, 256, FT_UShort ) ||
ACCESS_Frame( 512L ) )
goto Fail;
for ( i = 0; i < 256; i++ )
{
u = GET_UShort() / 8;
cmap2->subHeaderKeys[i] = u;
if ( num_SH < u )
num_SH = u;
}
FORGET_Frame();
/* load subheaders */
cmap2->numGlyphId = l =
( ( cmap->length - 2L * ( 256 + 3 ) - num_SH * 8L ) & 0xFFFF ) / 2;
if ( ALLOC_ARRAY( cmap2->subHeaders,
num_SH + 1,
TT_CMap2SubHeader ) ||
ACCESS_Frame( ( num_SH + 1 ) * 8L ) )
goto Fail;
cmap2sub = cmap2->subHeaders;
for ( i = 0; i <= num_SH; i++ )
{
cmap2sub->firstCode = GET_UShort();
cmap2sub->entryCount = GET_UShort();
cmap2sub->idDelta = GET_Short();
/* we apply the location offset immediately */
cmap2sub->idRangeOffset = GET_UShort() - ( num_SH - i ) * 8 - 2;
cmap2sub++;
}
FORGET_Frame();
/* load glyph IDs */
if ( ALLOC_ARRAY( cmap2->glyphIdArray, l, FT_UShort ) ||
ACCESS_Frame( l * 2L ) )
goto Fail;
for ( i = 0; i < l; i++ )
cmap2->glyphIdArray[i] = GET_UShort();
FORGET_Frame();
cmap->get_index = code_to_index2;
break;
case 4:
cmap4 = &cmap->c.cmap4;
/* load header */
if ( ACCESS_Frame( 8L ) )
goto Fail;
cmap4->segCountX2 = GET_UShort();
cmap4->searchRange = GET_UShort();
cmap4->entrySelector = GET_UShort();
cmap4->rangeShift = GET_UShort();
num_Seg = cmap4->segCountX2 / 2;
FORGET_Frame();
/* load segments */
if ( ALLOC_ARRAY( cmap4->segments,
num_Seg,
TT_CMap4Segment ) ||
ACCESS_Frame( ( num_Seg * 4 + 1 ) * 2L ) )
goto Fail;
segments = cmap4->segments;
for ( i = 0; i < num_Seg; i++ )
segments[i].endCount = GET_UShort();
(void)GET_UShort();
for ( i = 0; i < num_Seg; i++ )
segments[i].startCount = GET_UShort();
for ( i = 0; i < num_Seg; i++ )
segments[i].idDelta = GET_Short();
for ( i = 0; i < num_Seg; i++ )
segments[i].idRangeOffset = GET_UShort();
FORGET_Frame();
cmap4->numGlyphId = l =
( ( cmap->length - ( 16L + 8L * num_Seg ) ) & 0xFFFF ) / 2;
/* load IDs */
if ( ALLOC_ARRAY( cmap4->glyphIdArray, l, FT_UShort ) ||
ACCESS_Frame( l * 2L ) )
goto Fail;
for ( i = 0; i < l; i++ )
cmap4->glyphIdArray[i] = GET_UShort();
FORGET_Frame();
cmap->get_index = code_to_index4;
cmap4->last_segment = cmap4->segments;
break;
case 6:
cmap6 = &cmap->c.cmap6;
if ( ACCESS_Frame( 4L ) )
goto Fail;
cmap6->firstCode = GET_UShort();
cmap6->entryCount = GET_UShort();
FORGET_Frame();
l = cmap6->entryCount;
if ( ALLOC_ARRAY( cmap6->glyphIdArray,
cmap6->entryCount,
FT_Short ) ||
ACCESS_Frame( l * 2L ) )
goto Fail;
for ( i = 0; i < l; i++ )
cmap6->glyphIdArray[i] = GET_UShort();
FORGET_Frame();
cmap->get_index = code_to_index6;
break;
default: /* corrupt character mapping table */
return TT_Err_Invalid_CharMap_Format;
}
return TT_Err_Ok;
Fail:
TT_CharMap_Free( face, cmap );
return error;
}
static
TT_Error Load_Composite_End( UShort n_points,
Short n_contours,
PExecution_Context exec,
PSubglyph_Record subg,
UShort load_flags,
TT_Stream input )
{
DEFINE_LOAD_LOCALS( input );
UShort k, n_ins;
PGlyph_Zone pts;
if ( subg->is_hinted &&
subg->element_flag & WE_HAVE_INSTR )
{
if ( ACCESS_Frame( 2L ) )
return error;
n_ins = GET_UShort(); /* read size of instructions */
FORGET_Frame();
PTRACE4(( " Instructions size: %d\n", n_ins ));
if ( n_ins > exec->face->maxProfile.maxSizeOfInstructions )
{
PTRACE0(( "ERROR: Too many instructions in composite glyph %ld\n",
subg->index ));
return TT_Err_Too_Many_Ins;
}
if ( FILE_Read( exec->glyphIns, n_ins ) )
return error;
error = Set_CodeRange( exec,
TT_CodeRange_Glyph,
exec->glyphIns,
n_ins );
if ( error )
return error;
}
else
n_ins = 0;
/* prepare the execution context */
n_points += 2;
exec->pts = subg->zone;
pts = &exec->pts;
pts->n_points = n_points;
pts->n_contours = n_contours;
/* add phantom points */
pts->cur[n_points - 2] = subg->pp1;
pts->cur[n_points - 1] = subg->pp2;
pts->touch[n_points - 1] = 0;
pts->touch[n_points - 2] = 0;
/* if hinting, round the phantom points */
if ( subg->is_hinted )
{
pts->cur[n_points - 2].x = (subg->pp1.x + 32) & -64;
pts->cur[n_points - 1].x = (subg->pp2.x + 32) & -64;
}
for ( k = 0; k < n_points; k++ )
pts->touch[k] &= TT_Flag_On_Curve;
cur_to_org( n_points, pts );
/* now consider hinting */
if ( subg->is_hinted && n_ins > 0 )
{
exec->is_composite = TRUE;
exec->pedantic_hinting = load_flags & TTLOAD_PEDANTIC;
error = Context_Run( exec, FALSE );
if (error && exec->pedantic_hinting)
return error;
}
/* save glyph origin and advance points */
subg->pp1 = pts->cur[n_points - 2];
subg->pp2 = pts->cur[n_points - 1];
return TT_Err_Ok;
}
static TT_Error Load_Simple_Glyph( PExecution_Context exec,
TT_Stream input,
Short n_contours,
Short left_contours,
UShort left_points,
UShort load_flags,
PSubglyph_Record subg )
{
DEFINE_LOAD_LOCALS( input );
PGlyph_Zone pts;
Short k;
UShort j;
UShort n_points, n_ins;
PFace face;
Byte* flag;
TT_Vector* vec;
TT_F26Dot6 x, y;
face = exec->face;
/* simple check */
if ( n_contours > left_contours )
{
PTRACE0(( "ERROR: Glyph index %ld has %d contours > left %d\n",
subg->index, n_contours, left_contours ));
return TT_Err_Too_Many_Contours;
}
/* preparing the execution context */
mount_zone( &subg->zone, &exec->pts );
/* reading the contours endpoints */
if ( ACCESS_Frame( (n_contours + 1) * 2L ) )
return error;
PTRACE4(( " Contour endpoints:" ));
for ( k = 0; k < n_contours; k++ )
{
exec->pts.contours[k] = GET_UShort();
PTRACE4(( " %d", exec->pts.contours[k] ));
}
PTRACE4(( "\n" ));
if ( n_contours > 0 )
n_points = exec->pts.contours[n_contours - 1] + 1;
else
n_points = 0;
n_ins = GET_UShort();
FORGET_Frame();
if ( n_points > left_points )
{
PTRACE0(( "ERROR: Too many points in glyph %ld\n", subg->index ));
return TT_Err_Too_Many_Points;
}
/* loading instructions */
PTRACE4(( " Instructions size: %d\n", n_ins ));
if ( n_ins > face->maxProfile.maxSizeOfInstructions )
{
PTRACE0(( "ERROR: Too many instructions!\n" ));
return TT_Err_Too_Many_Ins;
}
if ( FILE_Read( exec->glyphIns, n_ins ) )
return error;
if ( (error = Set_CodeRange( exec,
TT_CodeRange_Glyph,
exec->glyphIns,
n_ins )) != TT_Err_Ok )
return error;
/* read the flags */
if ( CHECK_AND_ACCESS_Frame( n_points * 5L ) )
return error;
j = 0;
flag = exec->pts.touch;
while ( j < n_points )
{
Byte c, cnt;
flag[j] = c = GET_Byte();
j++;
if ( c & 8 )
{
cnt = GET_Byte();
while( cnt > 0 )
{
flag[j++] = c;
cnt--;
}
}
}
/* read the X */
x = 0;
vec = exec->pts.org;
for ( j = 0; j < n_points; j++ )
{
if ( flag[j] & 2 )
{
if ( flag[j] & 16 )
x += GET_Byte();
else
x -= GET_Byte();
}
else
{
if ( (flag[j] & 16) == 0 )
x += GET_Short();
}
vec[j].x = x;
}
/* read the Y */
y = 0;
for ( j = 0; j < n_points; j++ )
{
if ( flag[j] & 4 )
{
if ( flag[j] & 32 )
y += GET_Byte();
else
y -= GET_Byte();
}
else
{
if ( (flag[j] & 32) == 0 )
y += GET_Short();
}
vec[j].y = y;
}
FORGET_Frame();
/* Now add the two shadow points at n and n + 1. */
/* We need the left side bearing and advance width. */
/* pp1 = xMin - lsb */
vec[n_points].x = subg->metrics.bbox.xMin - subg->metrics.horiBearingX;
vec[n_points].y = 0;
/* pp2 = pp1 + aw */
vec[n_points+1].x = vec[n_points].x + subg->metrics.horiAdvance;
vec[n_points+1].y = 0;
/* clear the touch flags */
for ( j = 0; j < n_points; j++ )
exec->pts.touch[j] &= TT_Flag_On_Curve;
exec->pts.touch[n_points ] = 0;
exec->pts.touch[n_points + 1] = 0;
/* Note that we return two more points that are not */
/* part of the glyph outline. */
n_points += 2;
/* now eventually scale and hint the glyph */
pts = &exec->pts;
pts->n_points = n_points;
pts->n_contours = n_contours;
if ( (load_flags & TTLOAD_SCALE_GLYPH) == 0 )
{
/* no scaling, just copy the orig arrays into the cur ones */
org_to_cur( n_points, pts );
}
else
{
/* first scale the glyph points */
for ( j = 0; j < n_points; j++ )
{
pts->org[j].x = Scale_X( &exec->metrics, pts->org[j].x );
pts->org[j].y = Scale_Y( &exec->metrics, pts->org[j].y );
}
/* if hinting, round pp1, and shift the glyph accordingly */
if ( subg->is_hinted )
{
x = pts->org[n_points - 2].x;
x = ((x+32) & -64) - x;
translate_array( n_points, pts->org, x, 0 );
org_to_cur( n_points, pts );
pts->cur[n_points - 1].x = (pts->cur[n_points - 1].x + 32) & -64;
/* now consider hinting */
if ( n_ins > 0 )
{
exec->is_composite = FALSE;
exec->pedantic_hinting = load_flags & TTLOAD_PEDANTIC;
error = Context_Run( exec, FALSE );
if (error && exec->pedantic_hinting)
return error;
}
}
else
org_to_cur( n_points, pts );
}
/* save glyph phantom points */
if (!subg->preserve_pps)
{
subg->pp1 = pts->cur[n_points - 2];
subg->pp2 = pts->cur[n_points - 1];
}
return TT_Err_Ok;
}