int LcdFont::getRenderWidth(const char * text, const bool utf8_encoded)
{
pthread_mutex_lock(&renderer->render_mutex);
// fribidi
#if defined (ENABLE_FRIBIDI)
std::string Text = fribidiShapeChar(text, utf8_encoded);
text = Text.c_str();
#endif
FT_Error err;
#ifdef FT_NEW_CACHE_API
FTC_ScalerRec scaler;
scaler.face_id = font.face_id;
scaler.width = font.width;
scaler.height = font.height;
scaler.pixel = true;
err = FTC_Manager_LookupSize(renderer->cacheManager, &scaler, &size);
#else
err = FTC_Manager_Lookup_Size(renderer->cacheManager, &font.font, &face, &size);
#endif
if (err != 0)
{
dprintf(DEBUG_NORMAL, "LcdFont::getRenderWidth: FTC_Manager_Lookup_Size failed! (0x%x)\n", err);
pthread_mutex_unlock(&renderer->render_mutex);
return -1;
}
int x=0;
for (; *text; text++)
{
FTC_SBit glyph;
int unicode_value = UTF8ToUnicode(text, utf8_encoded);
if (unicode_value == -1)
break;
#ifdef FT_NEW_CACHE_API
int index = FT_Get_Char_Index(size->face, unicode_value);
#else
int index=FT_Get_Char_Index(face, unicode_value);
#endif
if (!index)
continue;
if (getGlyphBitmap(index, &glyph))
{
dprintf(DEBUG_NORMAL, "LcdFont::getRenderWidth: failed to get glyph bitmap.\n");
continue;
}
x+=glyph->xadvance+1;
}
pthread_mutex_unlock(&renderer->render_mutex);
return x;
}
ftc_image_node_init( FTC_ImageNode inode,
FTC_GlyphQuery gquery,
FTC_Cache cache )
{
FTC_ImageFamily ifam = FTC_IMAGE_FAMILY( gquery->query.family );
FT_Error error;
FT_Face face;
FT_Size size;
/* initialize its inner fields */
ftc_glyph_node_init( FTC_GLYPH_NODE( inode ),
gquery->gindex,
FTC_GLYPH_FAMILY( ifam ) );
/* we will now load the glyph image */
error = FTC_Manager_Lookup_Size( FTC_FAMILY( ifam )->cache->manager,
&ifam->type.font,
&face, &size );
if ( !error )
{
FT_UInt gindex = FTC_GLYPH_NODE_GINDEX( inode );
error = FT_Load_Glyph( face, gindex, ifam->type.flags );
if ( !error )
{
if ( face->glyph->format == FT_GLYPH_FORMAT_BITMAP ||
face->glyph->format == FT_GLYPH_FORMAT_OUTLINE )
{
/* ok, copy it */
FT_Glyph glyph;
error = FT_Get_Glyph( face->glyph, &glyph );
if ( !error )
{
inode->glyph = glyph;
goto Exit;
}
}
else
error = FTC_Err_Invalid_Argument;
}
}
/* in case of error */
ftc_glyph_node_done( FTC_GLYPH_NODE(inode), cache );
Exit:
return error;
}
FT_CALLBACK_DEF
FT_Error ftc_glyph_image_node_new( FTC_GlyphSet gset,
FT_UInt glyph_index,
FTC_GlyphImage *anode )
{
FT_Memory memory = gset->memory;
FTC_ImageSet imageset = (FTC_ImageSet)gset;
FT_Error error;
FTC_GlyphImage node = 0;
FT_Face face;
FT_Size size;
/* allocate node */
if ( ALLOC( node, sizeof ( *node ) ) )
goto Exit;
/* initialize its inner fields */
FTC_GlyphNode_Init( FTC_GLYPHNODE( node ), gset, glyph_index );
/* we will now load the glyph image */
error = FTC_Manager_Lookup_Size( gset->manager,
&imageset->description.font,
&face, &size );
if ( !error )
{
FT_UInt gindex = node->root.glyph_index;
FT_UInt load_flags = FT_LOAD_DEFAULT;
FT_UInt image_type = imageset->description.image_type;
if ( FTC_IMAGE_FORMAT( image_type ) == ftc_image_format_bitmap )
{
load_flags |= FT_LOAD_RENDER;
if ( image_type & ftc_image_flag_monochrome )
load_flags |= FT_LOAD_MONOCHROME;
/* disable embedded bitmaps loading if necessary */
if ( image_type & ftc_image_flag_no_sbits )
load_flags |= FT_LOAD_NO_BITMAP;
}
else if ( FTC_IMAGE_FORMAT( image_type ) == ftc_image_format_outline )
{
/* disable embedded bitmaps loading */
load_flags |= FT_LOAD_NO_BITMAP;
if ( image_type & ftc_image_flag_unscaled )
load_flags |= FT_LOAD_NO_SCALE;
}
if ( image_type & ftc_image_flag_unhinted )
load_flags |= FT_LOAD_NO_HINTING;
if ( image_type & ftc_image_flag_autohinted )
load_flags |= FT_LOAD_FORCE_AUTOHINT;
error = FT_Load_Glyph( face, gindex, load_flags );
if ( !error )
{
if ( face->glyph->format == ft_glyph_format_bitmap ||
face->glyph->format == ft_glyph_format_outline )
{
/* ok, copy it */
FT_Glyph glyph;
error = FT_Get_Glyph( face->glyph, &glyph );
if ( !error )
node->ft_glyph = glyph;
}
else
error = FT_Err_Invalid_Argument;
}
}
Exit:
if ( error && node )
FREE( node );
*anode = node;
return error;
}
void LcdFont::RenderString(int x, int y, const int width, const char * text, const int color, const int selected, const bool utf8_encoded)
{
int err;
pthread_mutex_lock(&renderer->render_mutex);
#ifdef FT_NEW_CACHE_API
FTC_ScalerRec scaler;
scaler.face_id = font.face_id;
scaler.width = font.width;
scaler.height = font.height;
scaler.pixel = true;
if ((err = FTC_Manager_LookupSize(renderer->cacheManager, &scaler, &size)) != 0)
#else
if ((err=FTC_Manager_Lookup_Size(renderer->cacheManager, &font.font, &face, &size))!=0)
#endif
{
printf("FTC_Manager_Lookup_Size failed! (%d)\n",err);
pthread_mutex_unlock(&renderer->render_mutex);
return;
}
int left=x, step_y=(size->metrics.height >> 6 )*3/4 + 4;
int pos =0;
for (; *text; text++)
{
pos++;
FTC_SBit glyph;
//if ((x + size->metrics.x_ppem > (left+width)) || (*text=='\n'))
if (x + size->metrics.x_ppem > (left+width))
{ //width clip
break;
}
if (*text=='\n')
{
x = left;
y += step_y;
}
int unicode_value = UTF8ToUnicode(text, utf8_encoded);
if (unicode_value == -1)
break;
#ifdef FT_NEW_CACHE_API
int index = FT_Get_Char_Index(size->face, unicode_value);
#else
int index = FT_Get_Char_Index(face, unicode_value);
#endif
if (!index)
continue;
if (getGlyphBitmap(index, &glyph))
{
printf("failed to get glyph bitmap.\n");
continue;
}
int rx=x+glyph->left;
int ry=y-glyph->top;
if(pos==selected)
{
framebuffer->draw_fill_rect(x-2,y-glyph->height-2, x+glyph->width+2, y+2, CLCDDisplay::PIXEL_INV );
}
for (int ay=0; ay<glyph->height; ay++)
{
int ax=0;
int w=glyph->width;
int xpos = rx;
for (; ax<w; ax++)
{
unsigned char c = glyph->buffer[ay*abs(glyph->pitch)+(ax>>3)];
if((c>>(7-(ax&7)))&1)
framebuffer->draw_point(xpos,ry, color);
xpos ++;
}
ry++;
}
x+=glyph->xadvance+1;
}
pthread_mutex_unlock(&renderer->render_mutex);
}
static FT_Error
ftc_sbit_node_load( FTC_SBitNode snode,
FTC_Manager manager,
FTC_SBitFamily sfam,
FT_UInt gindex,
FT_ULong *asize )
{
FT_Error error;
FTC_GlyphNode gnode = FTC_GLYPH_NODE( snode );
FT_Memory memory;
FT_Face face;
FT_Size size;
FTC_SBit sbit;
if ( gindex < (FT_UInt)gnode->item_start ||
gindex >= (FT_UInt)gnode->item_start + gnode->item_count )
{
FT_ERROR(( "ftc_sbit_node_load: invalid glyph index" ));
return FTC_Err_Invalid_Argument;
}
memory = manager->library->memory;
sbit = snode->sbits + ( gindex - gnode->item_start );
error = FTC_Manager_Lookup_Size( manager, &sfam->type.font,
&face, &size );
if ( !error )
{
/* by default, indicates a `missing' glyph */
sbit->buffer = 0;
error = FT_Load_Glyph( face, gindex, sfam->type.flags | FT_LOAD_RENDER );
if ( !error )
{
FT_Int temp;
FT_GlyphSlot slot = face->glyph;
FT_Bitmap* bitmap = &slot->bitmap;
FT_Int xadvance, yadvance;
/* check that our values fit into 8-bit containers! */
/* If this is not the case, our bitmap is too large */
/* and we will leave it as `missing' with sbit.buffer = 0 */
#define CHECK_CHAR( d ) ( temp = (FT_Char)d, temp == d )
#define CHECK_BYTE( d ) ( temp = (FT_Byte)d, temp == d )
/* XXX: FIXME: add support for vertical layouts maybe */
/* horizontal advance in pixels */
xadvance = ( slot->metrics.horiAdvance + 32 ) >> 6;
yadvance = ( slot->metrics.vertAdvance + 32 ) >> 6;
if ( CHECK_BYTE( bitmap->rows ) &&
CHECK_BYTE( bitmap->width ) &&
CHECK_CHAR( bitmap->pitch ) &&
CHECK_CHAR( slot->bitmap_left ) &&
CHECK_CHAR( slot->bitmap_top ) &&
CHECK_CHAR( xadvance ) &&
CHECK_CHAR( yadvance ) )
{
sbit->width = (FT_Byte)bitmap->width;
sbit->height = (FT_Byte)bitmap->rows;
sbit->pitch = (FT_Char)bitmap->pitch;
sbit->left = (FT_Char)slot->bitmap_left;
sbit->top = (FT_Char)slot->bitmap_top;
sbit->xadvance = (FT_Char)xadvance;
sbit->yadvance = (FT_Char)yadvance;
sbit->format = (FT_Byte)bitmap->pixel_mode;
sbit->max_grays = (FT_Byte)(bitmap->num_grays - 1);
#if 0 /* this doesn't work well with embedded bitmaps */
/* grab the bitmap when possible - this is a hack! */
if ( slot->internal->flags & FT_GLYPH_OWN_BITMAP )
{
slot->internal->flags &= ~FT_GLYPH_OWN_BITMAP;
sbit->buffer = bitmap->buffer;
}
else
#endif
{
/* copy the bitmap into a new buffer -- ignore error */
error = ftc_sbit_copy_bitmap( sbit, bitmap, memory );
}
/* now, compute size */
if ( asize )
*asize = ABS( sbit->pitch ) * sbit->height;
} /* glyph dimensions ok */
} /* glyph loading successful */
