FT_Get_Advance( FT_Face face,
FT_UInt gindex,
FT_Int32 flags,
FT_Fixed *padvance )
{
FT_Face_GetAdvancesFunc func;
if ( !face )
return FT_Err_Invalid_Face_Handle;
if ( gindex >= (FT_UInt)face->num_glyphs )
return FT_Err_Invalid_Glyph_Index;
func = face->driver->clazz->get_advances;
if ( func && LOAD_ADVANCE_FAST_CHECK( flags ) )
{
FT_Error error;
error = func( face, gindex, 1, flags, padvance );
if ( !error )
return _ft_face_scale_advances( face, padvance, 1, flags );
if ( error != FT_ERROR_BASE( FT_Err_Unimplemented_Feature ) )
return error;
}
return FT_Get_Advances( face, gindex, 1, flags, padvance );
}
FT_Get_Advances( FT_Face face,
FT_UInt start,
FT_UInt count,
FT_Int32 flags,
FT_Fixed *padvances )
{
FT_Face_GetAdvancesFunc func;
FT_UInt num, end, nn;
FT_Error error = FT_Err_Ok;
if ( !face )
return FT_Err_Invalid_Face_Handle;
num = (FT_UInt)face->num_glyphs;
end = start + count;
if ( start >= num || end < start || end > num )
return FT_Err_Invalid_Glyph_Index;
if ( count == 0 )
return FT_Err_Ok;
func = face->driver->clazz->get_advances;
if ( func && LOAD_ADVANCE_FAST_CHECK( flags ) )
{
error = func( face, start, count, flags, padvances );
if ( !error )
goto Exit;
if ( error != FT_ERROR_BASE( FT_Err_Unimplemented_Feature ) )
return error;
}
error = FT_Err_Ok;
if ( flags & FT_ADVANCE_FLAG_FAST_ONLY )
return FT_Err_Unimplemented_Feature;
flags |= FT_LOAD_ADVANCE_ONLY;
for ( nn = 0; nn < count; nn++ )
{
error = FT_Load_Glyph( face, start + nn, flags );
if ( error )
break;
padvances[nn] = ( flags & FT_LOAD_VERTICAL_LAYOUT )
? face->glyph->advance.x
: face->glyph->advance.y;
}
if ( error )
return error;
Exit:
return _ft_face_scale_advances( face, padvances, count, flags );
}
FT_Outline_Render( FT_Library library,
FT_Outline* outline,
FT_Raster_Params* params )
{
FT_Error error;
FT_Bool update = 0;
FT_Renderer renderer;
FT_ListNode node;
if ( !library )
return FT_Err_Invalid_Library_Handle;
if ( !outline || !params )
return FT_Err_Invalid_Argument;
renderer = library->cur_renderer;
node = library->renderers.head;
params->source = (void*)outline;
error = FT_Err_Cannot_Render_Glyph;
while ( renderer )
{
error = renderer->raster_render( renderer->raster, params );
if ( !error || FT_ERROR_BASE( error ) != FT_Err_Cannot_Render_Glyph )
break;
/* FT_Err_Cannot_Render_Glyph is returned if the render mode */
/* is unsupported by the current renderer for this glyph image */
/* format */
/* now, look for another renderer that supports the same */
/* format */
renderer = FT_Lookup_Renderer( library, FT_GLYPH_FORMAT_OUTLINE,
&node );
update = 1;
}
/* if we changed the current renderer for the glyph image format */
/* we need to select it as the next current one */
if ( !error && update && renderer )
FT_Set_Renderer( library, renderer, 0, 0 );
return error;
}
PCF_Face_Init( FT_Stream stream,
FT_Face pcfface, /* PCF_Face */
FT_Int face_index,
FT_Int num_params,
FT_Parameter* params )
{
PCF_Face face = (PCF_Face)pcfface;
FT_Error error = PCF_Err_Ok;
FT_UNUSED( num_params );
FT_UNUSED( params );
FT_UNUSED( face_index );
error = pcf_load_font( stream, face );
if ( error )
{
FT_Error error2;
PCF_Face_Done( pcfface );
/* this didn't work, try gzip support! */
error2 = FT_Stream_OpenGzip( &face->gzip_stream, stream );
if ( FT_ERROR_BASE( error2 ) == FT_Err_Unimplemented_Feature )
goto Fail;
error = error2;
if ( error )
#ifdef FT_CONFIG_OPTION_USE_LZW
{
FT_Error error3;
/* this didn't work, try LZW support! */
error3 = FT_Stream_OpenLZW( &face->gzip_stream, stream );
if ( FT_ERROR_BASE( error3 ) == FT_Err_Unimplemented_Feature )
goto Fail;
error = error3;
if ( error )
goto Fail;
face->gzip_source = stream;
pcfface->stream = &face->gzip_stream;
stream = pcfface->stream;
error = pcf_load_font( stream, face );
if ( error )
goto Fail;
}
#else
goto Fail;
#endif
else
{
face->gzip_source = stream;
pcfface->stream = &face->gzip_stream;
stream = pcfface->stream;
error = pcf_load_font( stream, face );
if ( error )
goto Fail;
}
}
