Formatting, whitespace, addition of some comments.
This commit is contained in:
Werner Lemberg
parent
6fce8427e4
commit
0aa36160d6
@ -140,7 +140,7 @@ FT_BEGIN_HEADER
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/* This function may be useful if you want to control FreeType 2's */
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/* debug level in your application. */
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/* */
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FT_BASE( const char * )
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FT_BASE( const char* )
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FT_Trace_Get_Name( FT_Int idx );
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@ -288,7 +288,7 @@
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static void
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ft_var_load_avar( TT_Face face )
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{
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FT_Stream stream = FT_FACE_STREAM(face);
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FT_Stream stream = FT_FACE_STREAM( face );
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FT_Memory memory = stream->memory;
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GX_Blend blend = face->blend;
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GX_AVarSegment segment;
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@ -302,7 +302,10 @@
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blend->avar_checked = TRUE;
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if ( (error = face->goto_table( face, TTAG_avar, stream, &table_len )) != 0 )
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if ( ( error = face->goto_table( face,
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TTAG_avar,
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stream,
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&table_len ) ) != 0 )
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return;
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if ( FT_FRAME_ENTER( table_len ) )
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@ -319,7 +322,7 @@
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goto Exit;
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segment = &blend->avar_segment[0];
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for ( i = 0; i < axisCount; ++i, ++segment )
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for ( i = 0; i < axisCount; i++, segment++ )
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{
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segment->pairCount = FT_GET_USHORT();
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if ( FT_NEW_ARRAY( segment->correspondence, segment->pairCount ) )
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@ -327,7 +330,7 @@
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/* Failure. Free everything we have done so far. We must do */
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/* it right now since loading the `avar' table is optional. */
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for ( j = i - 1; j >= 0; --j )
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for ( j = i - 1; j >= 0; j-- )
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FT_FREE( blend->avar_segment[j].correspondence );
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FT_FREE( blend->avar_segment );
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@ -335,7 +338,7 @@
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goto Exit;
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}
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for ( j = 0; j < segment->pairCount; ++j )
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for ( j = 0; j < segment->pairCount; j++ )
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{
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/* convert to Fixed */
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segment->correspondence[j].fromCoord = FT_GET_SHORT() << 2;
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@ -367,8 +370,8 @@
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/* ft_var_load_gvar */
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/* */
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/* <Description> */
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/* Parses the `gvar' table if present. If `fvar' is there, `gvar' */
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/* had better be there too. */
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/* Parse the `gvar' table if present. If `fvar' is there, `gvar' had */
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/* better be there too. */
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/* */
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/* <InOut> */
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/* face :: The font face. */
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@ -379,7 +382,7 @@
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static FT_Error
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ft_var_load_gvar( TT_Face face )
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{
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FT_Stream stream = FT_FACE_STREAM(face);
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FT_Stream stream = FT_FACE_STREAM( face );
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FT_Memory memory = stream->memory;
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GX_Blend blend = face->blend;
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FT_Error error;
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@ -406,7 +409,10 @@
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FT_FRAME_END
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};
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if ( (error = face->goto_table( face, TTAG_gvar, stream, &table_len )) != 0 )
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if ( ( error = face->goto_table( face,
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TTAG_gvar,
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stream,
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&table_len ) ) != 0 )
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goto Exit;
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gvar_start = FT_STREAM_POS( );
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@ -433,7 +439,7 @@
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if ( FT_FRAME_ENTER( ( blend->gv_glyphcnt + 1 ) * 4L ) )
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goto Exit;
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for ( i = 0; i <= blend->gv_glyphcnt; ++i )
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for ( i = 0; i <= blend->gv_glyphcnt; i++ )
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blend->glyphoffsets[i] = offsetToData + FT_GET_ULONG();
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FT_FRAME_EXIT();
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@ -444,9 +450,9 @@
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if ( FT_FRAME_ENTER( ( blend->gv_glyphcnt + 1 ) * 2L ) )
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goto Exit;
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for ( i = 0; i <= blend->gv_glyphcnt; ++i )
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for ( i = 0; i <= blend->gv_glyphcnt; i++ )
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blend->glyphoffsets[i] = offsetToData + FT_GET_USHORT() * 2;
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/* XXX: Undocumented: `*2'! */
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/* XXX: Undocumented: `*2'! */
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FT_FRAME_EXIT();
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}
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@ -457,12 +463,12 @@
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gvar_head.axisCount * blend->tuplecount ) )
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goto Exit;
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if ( FT_STREAM_SEEK( gvar_start + gvar_head.offsetToCoord ) ||
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FT_FRAME_ENTER( blend->tuplecount * gvar_head.axisCount * 2L ) )
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if ( FT_STREAM_SEEK( gvar_start + gvar_head.offsetToCoord ) ||
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FT_FRAME_ENTER( blend->tuplecount * gvar_head.axisCount * 2L ) )
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goto Exit;
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for ( i = 0; i < blend->tuplecount; ++i )
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for ( j = 0 ; j < (FT_UInt)gvar_head.axisCount; ++j )
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for ( i = 0; i < blend->tuplecount; i++ )
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for ( j = 0 ; j < (FT_UInt)gvar_head.axisCount; j++ )
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blend->tuplecoords[i * gvar_head.axisCount + j] =
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FT_GET_SHORT() << 2; /* convert to FT_Fixed */
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@ -512,7 +518,7 @@
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FT_Fixed apply = 0x10000L;
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for ( i = 0; i < blend->num_axis; ++i )
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for ( i = 0; i < blend->num_axis; i++ )
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{
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if ( tuple_coords[i] == 0 )
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/* It's not clear why (for intermediate tuples) we don't need */
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@ -662,15 +668,18 @@
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};
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/* read the font data and set up the internal representation */
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/* if not already done */
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if ( face->blend == NULL )
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{
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/* both `fvar' and `gvar' must be present */
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if ( (error = face->goto_table( face, TTAG_gvar,
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stream, &table_len )) != 0 )
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if ( ( error = face->goto_table( face, TTAG_gvar,
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stream, &table_len ) ) != 0 )
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goto Exit;
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if ( (error = face->goto_table( face, TTAG_fvar,
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stream, &table_len )) != 0 )
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if ( ( error = face->goto_table( face, TTAG_fvar,
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stream, &table_len ) ) != 0 )
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goto Exit;
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fvar_start = FT_STREAM_POS( );
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@ -713,6 +722,9 @@
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goto Exit;
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face->blend->mmvar = mmvar;
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/* set up pointers and offsets into the `mmvar' array; */
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/* the data gets filled in later on */
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mmvar->num_axis =
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fvar_head.axisCount;
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mmvar->num_designs =
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@ -722,30 +734,32 @@
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mmvar->num_namedstyles =
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fvar_head.instanceCount;
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mmvar->axis =
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(FT_Var_Axis*)&(mmvar[1]);
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(FT_Var_Axis*)&( mmvar[1] );
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mmvar->namedstyle =
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(FT_Var_Named_Style*)&(mmvar->axis[fvar_head.axisCount]);
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(FT_Var_Named_Style*)&( mmvar->axis[fvar_head.axisCount] );
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next_coords =
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(FT_Fixed*)&(mmvar->namedstyle[fvar_head.instanceCount]);
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for ( i = 0; i < fvar_head.instanceCount; ++i )
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(FT_Fixed*)&( mmvar->namedstyle[fvar_head.instanceCount] );
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for ( i = 0; i < fvar_head.instanceCount; i++ )
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{
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mmvar->namedstyle[i].coords = next_coords;
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next_coords += fvar_head.axisCount;
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}
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next_name = (FT_String*)next_coords;
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for ( i = 0; i < fvar_head.axisCount; ++i )
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for ( i = 0; i < fvar_head.axisCount; i++ )
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{
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mmvar->axis[i].name = next_name;
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next_name += 5;
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}
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/* now fill in the data */
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if ( FT_STREAM_SEEK( fvar_start + fvar_head.offsetToData ) )
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goto Exit;
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a = mmvar->axis;
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for ( i = 0; i < fvar_head.axisCount; ++i )
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for ( i = 0; i < fvar_head.axisCount; i++ )
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{
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GX_FVar_Axis axis_rec;
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@ -762,13 +776,13 @@
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a->name[1] = (FT_String)( ( a->tag >> 16 ) & 0xFF );
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a->name[2] = (FT_String)( ( a->tag >> 8 ) & 0xFF );
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a->name[3] = (FT_String)( ( a->tag ) & 0xFF );
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a->name[4] = 0;
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a->name[4] = '\0';
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++a;
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a++;
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}
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ns = mmvar->namedstyle;
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for ( i = 0; i < fvar_head.instanceCount; ++i, ++ns )
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for ( i = 0; i < fvar_head.instanceCount; i++, ns++ )
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{
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if ( FT_FRAME_ENTER( 4L + 4L * fvar_head.axisCount ) )
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goto Exit;
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@ -776,13 +790,15 @@
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ns->strid = FT_GET_USHORT();
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(void) /* flags = */ FT_GET_USHORT();
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for ( j = 0; j < fvar_head.axisCount; ++j )
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for ( j = 0; j < fvar_head.axisCount; j++ )
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ns->coords[j] = FT_GET_LONG();
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FT_FRAME_EXIT();
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}
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}
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/* fill the output array if requested */
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if ( master != NULL )
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{
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FT_UInt n;
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@ -793,36 +809,36 @@
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FT_MEM_COPY( mmvar, face->blend->mmvar, face->blend->mmvar_len );
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mmvar->axis =
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(FT_Var_Axis*)&(mmvar[1]);
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(FT_Var_Axis*)&( mmvar[1] );
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mmvar->namedstyle =
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(FT_Var_Named_Style*)&(mmvar->axis[mmvar->num_axis]);
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(FT_Var_Named_Style*)&( mmvar->axis[mmvar->num_axis] );
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next_coords =
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(FT_Fixed*)&(mmvar->namedstyle[mmvar->num_namedstyles]);
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(FT_Fixed*)&( mmvar->namedstyle[mmvar->num_namedstyles] );
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for ( n = 0; n < mmvar->num_namedstyles; ++n )
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for ( n = 0; n < mmvar->num_namedstyles; n++ )
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{
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mmvar->namedstyle[n].coords = next_coords;
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next_coords += mmvar->num_axis;
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}
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a = mmvar->axis;
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a = mmvar->axis;
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next_name = (FT_String*)next_coords;
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for ( n = 0; n < mmvar->num_axis; ++n )
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for ( n = 0; n < mmvar->num_axis; n++ )
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{
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a->name = next_name;
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/* standard PostScript names for some standard apple tags */
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if ( a->tag == TTAG_wght )
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a->name = (char *)"Weight";
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a->name = (char*)"Weight";
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else if ( a->tag == TTAG_wdth )
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a->name = (char *)"Width";
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a->name = (char*)"Width";
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else if ( a->tag == TTAG_opsz )
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a->name = (char *)"OpticalSize";
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a->name = (char*)"OpticalSize";
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else if ( a->tag == TTAG_slnt )
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a->name = (char *)"Slant";
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a->name = (char*)"Slant";
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next_name += 5;
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++a;
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a++;
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}
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*master = mmvar;
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@ -850,7 +866,7 @@
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/* <Input> */
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/* num_coords :: Must be the axis count of the font. */
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/* */
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/* coords :: An array of num_coords, each between [-1,1]. */
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/* coords :: An array of `num_coords', each between [-1,1]. */
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/* */
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/* <Return> */
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/* FreeType error code. 0 means success. */
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@ -879,7 +895,7 @@
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if ( face->blend == NULL )
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{
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if ( (error = TT_Get_MM_Var( face, NULL)) != 0 )
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if ( ( error = TT_Get_MM_Var( face, NULL ) ) != 0 )
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goto Exit;
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}
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@ -892,7 +908,7 @@
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goto Exit;
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}
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for ( i = 0; i < num_coords; ++i )
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for ( i = 0; i < num_coords; i++ )
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if ( coords[i] < -0x00010000L || coords[i] > 0x00010000L )
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{
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error = FT_THROW( Invalid_Argument );
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@ -900,7 +916,7 @@
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}
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if ( blend->glyphoffsets == NULL )
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if ( (error = ft_var_load_gvar( face )) != 0 )
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if ( ( error = ft_var_load_gvar( face ) ) != 0 )
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goto Exit;
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if ( blend->normalizedcoords == NULL )
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@ -917,7 +933,8 @@
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else
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{
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manageCvt = mcvt_retain;
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for ( i = 0; i < num_coords; ++i )
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for ( i = 0; i < num_coords; i++ )
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{
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if ( blend->normalizedcoords[i] != coords[i] )
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{
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@ -1008,7 +1025,7 @@
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if ( face->blend == NULL )
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{
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if ( (error = TT_Get_MM_Var( face, NULL )) != 0 )
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if ( ( error = TT_Get_MM_Var( face, NULL ) ) != 0 )
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goto Exit;
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}
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@ -1029,7 +1046,7 @@
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goto Exit;
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a = mmvar->axis;
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for ( i = 0; i < mmvar->num_axis; ++i, ++a )
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for ( i = 0; i < mmvar->num_axis; i++, a++ )
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{
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if ( coords[i] > a->maximum || coords[i] < a->minimum )
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{
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@ -1038,11 +1055,13 @@
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}
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if ( coords[i] < a->def )
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normalized[i] = -FT_DivFix( coords[i] - a->def, a->minimum - a->def );
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normalized[i] = -FT_DivFix( coords[i] - a->def,
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a->minimum - a->def );
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else if ( a->maximum == a->def )
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normalized[i] = 0;
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else
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normalized[i] = FT_DivFix( coords[i] - a->def, a->maximum - a->def );
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normalized[i] = FT_DivFix( coords[i] - a->def,
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a->maximum - a->def );
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}
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if ( !blend->avar_checked )
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@ -1051,9 +1070,9 @@
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if ( blend->avar_segment != NULL )
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{
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av = blend->avar_segment;
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for ( i = 0; i < mmvar->num_axis; ++i, ++av )
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for ( i = 0; i < mmvar->num_axis; i++, av++ )
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{
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for ( j = 1; j < (FT_UInt)av->pairCount; ++j )
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for ( j = 1; j < (FT_UInt)av->pairCount; j++ )
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if ( normalized[i] < av->correspondence[j].fromCoord )
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{
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normalized[i] =
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@ -1181,7 +1200,7 @@
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/* tuplecount, but John Jenkins says that shared points don't apply */
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/* to `cvar', and no other flags are defined. */
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for ( i = 0; i < ( tupleCount & 0xFFF ); ++i )
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for ( i = 0; i < ( tupleCount & 0xFFF ); i++ )
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{
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FT_UInt tupleDataSize;
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FT_UInt tupleIndex;
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@ -1196,7 +1215,7 @@
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if ( tupleIndex & GX_TI_EMBEDDED_TUPLE_COORD )
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{
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for ( j = 0; j < blend->num_axis; ++j )
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for ( j = 0; j < blend->num_axis; j++ )
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tuple_coords[j] = FT_GET_SHORT() << 2; /* convert from */
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/* short frac to fixed */
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}
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@ -1205,7 +1224,7 @@
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/* skip this tuple; it makes no sense */
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if ( tupleIndex & GX_TI_INTERMEDIATE_TUPLE )
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for ( j = 0; j < 2 * blend->num_axis; ++j )
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for ( j = 0; j < 2 * blend->num_axis; j++ )
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(void)FT_GET_SHORT();
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offsetToData += tupleDataSize;
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@ -1214,9 +1233,9 @@
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if ( tupleIndex & GX_TI_INTERMEDIATE_TUPLE )
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{
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for ( j = 0; j < blend->num_axis; ++j )
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for ( j = 0; j < blend->num_axis; j++ )
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im_start_coords[j] = FT_GET_SHORT() << 2;
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for ( j = 0; j < blend->num_axis; ++j )
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for ( j = 0; j < blend->num_axis; j++ )
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im_end_coords[j] = FT_GET_SHORT() << 2;
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}
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@ -1244,22 +1263,23 @@
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point_count == 0 ? face->cvt_size
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: point_count );
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if ( localpoints == NULL || deltas == NULL )
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/* failure, ignore it */;
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; /* failure, ignore it */
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else if ( localpoints == ALL_POINTS )
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{
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/* this means that there are deltas for every entry in cvt */
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for ( j = 0; j < face->cvt_size; ++j )
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for ( j = 0; j < face->cvt_size; j++ )
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face->cvt[j] = (FT_Short)( face->cvt[j] +
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FT_MulFix( deltas[j], apply ) );
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}
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else
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{
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for ( j = 0; j < point_count; ++j )
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for ( j = 0; j < point_count; j++ )
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{
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int pindex = localpoints[j];
|
||||
|
||||
|
||||
face->cvt[pindex] = (FT_Short)( face->cvt[pindex] +
|
||||
FT_MulFix( deltas[j], apply ) );
|
||||
}
|
||||
@ -1378,7 +1398,7 @@
|
||||
FT_Stream_SeekSet( stream, here );
|
||||
}
|
||||
|
||||
for ( i = 0; i < ( tupleCount & GX_TC_TUPLE_COUNT_MASK ); ++i )
|
||||
for ( i = 0; i < ( tupleCount & GX_TC_TUPLE_COUNT_MASK ); i++ )
|
||||
{
|
||||
FT_UInt tupleDataSize;
|
||||
FT_UInt tupleIndex;
|
||||
@ -1390,7 +1410,7 @@
|
||||
|
||||
if ( tupleIndex & GX_TI_EMBEDDED_TUPLE_COORD )
|
||||
{
|
||||
for ( j = 0; j < blend->num_axis; ++j )
|
||||
for ( j = 0; j < blend->num_axis; j++ )
|
||||
tuple_coords[j] = FT_GET_SHORT() << 2; /* convert from */
|
||||
/* short frac to fixed */
|
||||
}
|
||||
@ -1400,18 +1420,16 @@
|
||||
goto Fail3;
|
||||
}
|
||||
else
|
||||
{
|
||||
FT_MEM_COPY(
|
||||
tuple_coords,
|
||||
&blend->tuplecoords[(tupleIndex & 0xFFF) * blend->num_axis],
|
||||
&blend->tuplecoords[( tupleIndex & 0xFFF ) * blend->num_axis],
|
||||
blend->num_axis * sizeof ( FT_Fixed ) );
|
||||
}
|
||||
|
||||
if ( tupleIndex & GX_TI_INTERMEDIATE_TUPLE )
|
||||
{
|
||||
for ( j = 0; j < blend->num_axis; ++j )
|
||||
for ( j = 0; j < blend->num_axis; j++ )
|
||||
im_start_coords[j] = FT_GET_SHORT() << 2;
|
||||
for ( j = 0; j < blend->num_axis; ++j )
|
||||
for ( j = 0; j < blend->num_axis; j++ )
|
||||
im_end_coords[j] = FT_GET_SHORT() << 2;
|
||||
}
|
||||
|
||||
@ -1455,7 +1473,7 @@
|
||||
else if ( points == ALL_POINTS )
|
||||
{
|
||||
/* this means that there are deltas for every point in the glyph */
|
||||
for ( j = 0; j < n_points; ++j )
|
||||
for ( j = 0; j < n_points; j++ )
|
||||
{
|
||||
delta_xy[j].x += FT_MulFix( deltas_x[j], apply );
|
||||
delta_xy[j].y += FT_MulFix( deltas_y[j], apply );
|
||||
@ -1464,7 +1482,7 @@
|
||||
|
||||
else
|
||||
{
|
||||
for ( j = 0; j < point_count; ++j )
|
||||
for ( j = 0; j < point_count; j++ )
|
||||
{
|
||||
if ( localpoints[j] >= n_points )
|
||||
continue;
|
||||
@ -1510,7 +1528,7 @@
|
||||
/* tt_done_blend */
|
||||
/* */
|
||||
/* <Description> */
|
||||
/* Frees the blend internal data structure. */
|
||||
/* Free the blend internal data structure. */
|
||||
/* */
|
||||
FT_LOCAL_DEF( void )
|
||||
tt_done_blend( FT_Memory memory,
|
||||
@ -1526,7 +1544,7 @@
|
||||
|
||||
if ( blend->avar_segment != NULL )
|
||||
{
|
||||
for ( i = 0; i < blend->num_axis; ++i )
|
||||
for ( i = 0; i < blend->num_axis; i++ )
|
||||
FT_FREE( blend->avar_segment[i].correspondence );
|
||||
FT_FREE( blend->avar_segment );
|
||||
}
|
||||
|
||||
Loading…
Reference in New Issue
Block a user