static int gr_font_loadfrom( file * fp )
{
char header[8];
int bpp;
int types, i, id;
uint32_t y;
FONT * f;
PALETTE * pal = NULL;
struct
{
int width ;
int height ;
int yoffset ;
int fileoffset ;
}
oldchardata[256];
_chardata chardata[256] ;
if ( font_count == MAX_FONTS ) return -1 ;
/* Read the file header */
if ( !file_read( fp, header, 8 ) ) return -1;
if (
memcmp( header, FNT_MAGIC, 7 ) != 0 &&
memcmp( header, FNX_MAGIC, 7 ) != 0 )
{
return -1;
}
bpp = header[7];
if ( bpp == 0 ) bpp = 8;
/* Read or ignore the palette */
if ( bpp == 8 && !( pal = gr_read_pal_with_gamma( fp ) ) ) return -1 ;
/* Read the character data (detect old format) */
if ( header[2] == 'x' )
{
if ( !file_readSint32( fp, &types ) )
{
pal_destroy( pal );
return -1 ;
}
if ( !file_read( fp, chardata, sizeof( chardata ) ) )
{
pal_destroy( pal );
return -1 ;
}
for ( i = 0 ; i < 256 ; i++ )
{
ARRANGE_DWORD( &chardata[i].width );
ARRANGE_DWORD( &chardata[i].height );
ARRANGE_DWORD( &chardata[i].xadvance );
ARRANGE_DWORD( &chardata[i].yadvance );
ARRANGE_DWORD( &chardata[i].xoffset );
ARRANGE_DWORD( &chardata[i].yoffset );
ARRANGE_DWORD( &chardata[i].fileoffset );
}
}
else
{
if ( !file_readSint32( fp, &types ) )
{
pal_destroy( pal );
return -1 ;
}
if ( !file_read( fp, oldchardata, sizeof( oldchardata ) ) )
{
pal_destroy( pal );
return -1 ;
}
for ( i = 0 ; i < 256 ; i++ )
{
ARRANGE_DWORD( &oldchardata[i].width );
ARRANGE_DWORD( &oldchardata[i].height );
ARRANGE_DWORD( &oldchardata[i].yoffset );
ARRANGE_DWORD( &oldchardata[i].fileoffset );
chardata[i].width = oldchardata[i].width;
chardata[i].height = oldchardata[i].height;
chardata[i].xoffset = 0;
chardata[i].yoffset = oldchardata[i].yoffset;
chardata[i].xadvance = oldchardata[i].width;
chardata[i].yadvance = oldchardata[i].height + oldchardata[i].yoffset;
chardata[i].fileoffset = oldchardata[i].fileoffset;
}
}
/* Create the font */
if ( header[2] == 'x' )
id = gr_font_new( types, header[7] ) ;
else
id = gr_font_new( CHARSET_CP850, 8 ) ;
if ( id == -1 )
{
pal_destroy( pal );
return -1 ;
}
f = fonts[id];
if ( !f )
{
gr_font_destroy( id );
pal_destroy( pal );
return -1 ;
}
/* Load the character bitmaps */
for ( i = 0 ; i < 256 ; i++ )
{
GRAPH * gr;
uint8_t * ptr;
f->glyph[i].xadvance = chardata[i].xadvance ;
f->glyph[i].yadvance = chardata[i].yadvance ;
if ( chardata[i].fileoffset == 0 || chardata[i].width == 0 || chardata[i].height == 0 ) continue ;
f->glyph[i].xoffset = chardata[i].xoffset ;
f->glyph[i].yoffset = chardata[i].yoffset ;
file_seek( fp, chardata[i].fileoffset, SEEK_SET ) ;
f->glyph[i].bitmap = gr = bitmap_new( i, chardata[i].width, chardata[i].height, f->bpp ) ;
if ( !gr )
{
gr_font_destroy( id );
pal_destroy( pal );
return -1 ;
}
bitmap_add_cpoint( gr, 0, 0 ) ;
gr->format->palette = pal;
pal_use( pal );
for ( y = 0, ptr = gr->data; y < gr->height; y++, ptr += gr->pitch )
{
if ( !file_read( fp, ptr, gr->widthb ) ) break ;
if ( gr->format->depth == 16 )
{
ARRANGE_WORDS( ptr, ( int )gr->width );
}
else if ( gr->format->depth == 32 )
{
ARRANGE_DWORDS( ptr, ( int )gr->width );
}
}
f->glyph[i].yoffset = chardata[i].yoffset ;
}
if ( f->glyph[32].xadvance == 0 ) f->glyph[32].xadvance = f->glyph['j'].xadvance ;
pal_destroy( pal ); // Elimino la instancia inicial
return id ;
}
jfloat GraphiteLayoutShaper::shapeScriptRun(const SkPaint* paint, const UChar* chars,
size_t count, bool isRTL, Vector<jfloat>* const outAdvances,
Vector<jchar>* const outGlyphs, Vector<jfloat>* const outPos,
jfloat startXPosition, uint32_t startScriptRun, size_t glyphBaseCount) {
ALOGD("Shape Scrit Run with Graphite");
SkTypeface *typeface = paint->getTypeface();
mShapingGrFace = getCachedGrFace(typeface);
unsigned int x_ppem;
unsigned int y_ppem;
int x_scale;
int y_scale;
getConversionFactor(x_ppem, y_ppem, x_scale, y_scale, paint);
mShapingGrFont = gr_make_font_with_ops(x_ppem, paint, &GraphiteFontOps, mShapingGrFace);
const uint16_t *charsScriptStart = chars ;
const uint16_t *charsScriptEnd = chars + count;
size_t numCP;
char *pError;
numCP = gr_count_unicode_characters(gr_utf16, charsScriptStart, charsScriptEnd, (const void **)(&pError));
#if DEBUG_GLYPHS
ALOGD("Myanmar shape with Graphite, numCP = %d, grFont = %p, grFace = %p, pError = %p",
numCP, mShapingGrFont, mShapingGrFace, pError);
#endif
if(!mShapingGrFont || !mShapingGrFace || pError) {
ALOGD("Invalid grFont is NULL, grFace is NULL or parse string error.");
return 0.0;
}
mShapingSegment = gr_make_seg(mShapingGrFont, mShapingGrFace, 0, 0,
gr_utf16, charsScriptStart, numCP, isRTL);
cluster_t *clusters = getCluster(mShapingSegment, numCP);
#if DEBUG_GLYPHS
ALOGD("Got from Graphite");
#endif
const gr_slot *slot;
size_t glyphIndex, clusterIndex = 0;
jfloat totalFontRunAdvance = 0;
for (slot = gr_seg_first_slot(mShapingSegment), glyphIndex = 0; slot;
slot = gr_slot_next_in_segment(slot), ++ glyphIndex) {
#if DEBUG_GLYPHS
ALOGD(" -- Glyph = %d, origin = (%f, %f), advance = (%f, %f)\n",
gr_slot_gid(slot), gr_slot_origin_X(slot),
gr_slot_origin_Y(slot),
gr_slot_advance_X(slot, mShapingGrFace, mShapingGrFont),
gr_slot_advance_Y(slot, mShapingGrFace, mShapingGrFont));
#endif
if(glyphIndex == clusters[clusterIndex].base_glyph + clusters[clusterIndex].num_glyphs) {
uint32_t clusterStart = clusters[clusterIndex].base_char + startScriptRun;
jfloat startOrigin = outAdvances->itemAt(clusterStart);
jfloat advance = gr_slot_origin_X(slot) - startOrigin;
outAdvances->replaceAt(advance, clusterStart);
++ clusterIndex;
clusterStart = clusters[clusterIndex].base_char + startScriptRun;
outAdvances->replaceAt(gr_slot_origin_X(slot), clusterStart);
}
jfloat charRight = gr_slot_origin_X(slot) + gr_slot_advance_X(slot, mShapingGrFace, mShapingGrFont);
if (charRight > totalFontRunAdvance) {
totalFontRunAdvance = charRight;
}
jchar glyph = glyphBaseCount + gr_slot_gid(slot);
outGlyphs->add(glyph);
outPos->add(startXPosition + gr_slot_origin_X(slot));
outPos->add(gr_slot_origin_Y(slot));
}
uint32_t clusterStart = clusters[clusterIndex].base_char + startScriptRun;
jfloat startOrigin = outAdvances->itemAt(clusterStart);
jfloat advance = totalFontRunAdvance - startOrigin;
outAdvances->replaceAt(advance, clusterStart);
if(mShapingSegment) {
gr_seg_destroy(mShapingSegment);
mShapingSegment = NULL;
}
if(mShapingGrFont) {
gr_font_destroy(mShapingGrFont);
mShapingGrFont = NULL;
}
#if DEBUG_GLYPHS
ALOGD(" -- totalFontRunAdvance = %f", totalFontRunAdvance);
#endif
return totalFontRunAdvance;
}
