minhngoc25a
/
freetype2
mirror of git://git.savannah.gnu.org/freetype/freetype2.git
2
1
Fork 2
Code Issues 4 Releases Wiki Activity

- fixed a leak in the Type 1 driver 

- updated the CFF driver to support flex opcodes
This commit is contained in:
David Turner 2000-07-07 19:47:34 +00:00
parent 607358967f
commit 9b3d1c75ad
10 changed files with 435 additions and 55 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

18
CHANGES
View File

@ -1,5 +1,23 @@
LATEST CHANGES
- found a memory leak in the "type1" driver
- incorporated Tom's patches to support flex operators correctly
in OpenType/CFF fonts.. Now all I need is to support pure CFF
and CEF fonts to be done with this driver.. :-)
- added the Windows FNT/FON driver in "src/winfonts". For now,
it always "simulates" a Unicode charmap, so it shouldn't be
considered completed right now..
It's there to be more a proof of concept than anything else
anyway. The driver is a single C source file, that compiles
to 3 Kb of code..
I'm still working on the PCF/BDF drivers.. but I'm too lazy
to finish them now..
- CHANGES TO THE HIGH-LEVEL API
o FT_Get_Kerning has a new parameter that allows you to select

1
include/freetype/config/ftmodule.h
View File

@ -7,3 +7,4 @@ FT_USE_MODULE(ft_smooth_renderer_class)
FT_USE_MODULE(tt_driver_class)
FT_USE_MODULE(t1_driver_class)
FT_USE_MODULE(t1z_driver_class)
FT_USE_MODULE(winfnt_driver_class)

8
include/freetype/ftoutln.h
View File

@ -96,6 +96,11 @@
FT_Int numContours,
FT_Outline* outline );
FT_EXPORT_DEF(FT_Error) FT_Outline_New_Internal( FT_Memory memory,
FT_UInt numPoints,
FT_Int numContours,
FT_Outline* outline );
/*************************************************************************/
/* */
@ -129,6 +134,9 @@
FT_EXPORT_DEF(FT_Error) FT_Outline_Done( FT_Library library,
FT_Outline* outline );
FT_EXPORT_DEF( FT_Error ) FT_Outline_Done_Internal( FT_Memory memory,
FT_Outline* outline );
/*************************************************************************/
/* */
/* <Function> */

17
include/freetype/internal/ftstream.h
View File

@ -175,6 +175,10 @@ typedef struct FT_Frame_Field_
#define GET_ULong() FT_GET_MACRO( FT_Get_Long, FT_ULong )
#define GET_Tag4() FT_GET_MACRO( FT_Get_Long, FT_ULong )
#define GET_ShortLE() FT_GET_MACRO( FT_Get_ShortLE, FT_Short )
#define GET_UShortLE() FT_GET_MACRO( FT_Get_ShortLE, FT_UShort )
#define GET_LongLE() FT_GET_MACRO( FT_Get_LongLE, FT_Short )
#define GET_ULongLE() FT_GET_MACRO( FT_Get_LongLE, FT_Short )
#define FT_READ_MACRO( func, type, var ) \
( var = (type)func( stream, &error ), \
@ -189,6 +193,10 @@ typedef struct FT_Frame_Field_
#define READ_Long( var ) FT_READ_MACRO( FT_Read_Long, FT_Long, var )
#define READ_ULong( var ) FT_READ_MACRO( FT_Read_Long, FT_ULong, var )
#define READ_ShortLE( var ) FT_READ_MACRO( FT_Read_ShortLE, FT_Short, var )
#define READ_UShortLE( var ) FT_READ_MACRO( FT_Read_ShortLE, FT_UShort, var )
#define READ_LongLE( var ) FT_READ_MACRO( FT_Read_LongLE, FT_Long, var )
#define READ_ULongLE( var ) FT_READ_MACRO( FT_Read_LongLE, FT_ULong, var )
BASE_DEF(void) FT_New_Memory_Stream( FT_Library library,
@ -234,6 +242,9 @@ typedef struct FT_Frame_Field_
BASE_DEF(FT_Long) FT_Get_Long( FT_Stream stream );
BASE_DEF(FT_Short) FT_Get_ShortLE( FT_Stream stream );
BASE_DEF(FT_Long) FT_Get_LongLE( FT_Stream stream );
BASE_DEF(FT_Char) FT_Read_Char( FT_Stream stream,
@ -248,6 +259,12 @@ typedef struct FT_Frame_Field_
BASE_DEF(FT_Long) FT_Read_Long( FT_Stream stream,
FT_Error* error );
BASE_DEF(FT_Short) FT_Read_ShortLE( FT_Stream stream,
FT_Error* error );
BASE_DEF(FT_Long) FT_Read_LongLE( FT_Stream stream,
FT_Error* error );
BASE_DEF(FT_Error) FT_Read_Fields( FT_Stream stream,
const FT_Frame_Field* fields,
void* structure );

8
src/base/ftobjs.c
View File

@ -1937,9 +1937,9 @@
{
metrics->x_scale = FT_DivFix( dim_x, face->units_per_EM );
metrics->y_scale = FT_DivFix( dim_y, face->units_per_EM );
}
ft_recompute_scaled_metrics( face, metrics );
ft_recompute_scaled_metrics( face, metrics );
}
if ( clazz->set_char_sizes )
error = clazz->set_char_sizes( face->size,
@ -2014,10 +2014,10 @@
metrics->y_scale = FT_DivFix( metrics->y_ppem << 6,
face->units_per_EM );
ft_recompute_scaled_metrics( face, metrics );
}
ft_recompute_scaled_metrics( face, metrics );
if ( clazz->set_pixel_sizes )
error = clazz->set_pixel_sizes( face->size,
pixel_width,

99
src/base/ftoutln.c
View File

@ -270,6 +270,39 @@
}
FT_EXPORT_FUNC( FT_Error ) FT_Outline_New_Internal( FT_Memory memory,
FT_UInt numPoints,
FT_Int numContours,
FT_Outline* outline )
{
FT_Error error;
if ( !outline )
return FT_Err_Invalid_Argument;
*outline = null_outline;
if ( ALLOC_ARRAY( outline->points, numPoints * 2L, FT_Pos ) ||
ALLOC_ARRAY( outline->tags, numPoints, FT_Byte ) ||
ALLOC_ARRAY( outline->contours, numContours, FT_UShort ) )
goto Fail;
outline->n_points = (FT_UShort)numPoints;
outline->n_contours = (FT_Short)numContours;
outline->flags |= ft_outline_owner;
return FT_Err_Ok;
Fail:
outline->flags |= ft_outline_owner;
FT_Outline_Done_Internal( memory, outline );
return error;
}
/*************************************************************************/
/* */
/* <Function> */
@ -302,39 +335,16 @@
/* The reason why this function takes a `library' parameter is simply */
/* to use the library's memory allocator. */
/* */
BASE_FUNC( FT_Error ) FT_Outline_New( FT_Library library,
FT_UInt numPoints,
FT_Int numContours,
FT_Outline* outline )
FT_EXPORT_FUNC( FT_Error ) FT_Outline_New( FT_Library library,
FT_UInt numPoints,
FT_Int numContours,
FT_Outline* outline )
{
FT_Error error;
FT_Memory memory;
if ( !outline )
return FT_Err_Invalid_Argument;
*outline = null_outline;
memory = library->memory;
if ( ALLOC_ARRAY( outline->points, numPoints * 2L, FT_Pos ) ||
ALLOC_ARRAY( outline->tags, numPoints, FT_Byte ) ||
ALLOC_ARRAY( outline->contours, numContours, FT_UShort ) )
goto Fail;
outline->n_points = (FT_UShort)numPoints;
outline->n_contours = (FT_Short)numContours;
outline->flags |= ft_outline_owner;
return FT_Err_Ok;
Fail:
outline->flags |= ft_outline_owner;
FT_Outline_Done( library, outline );
return error;
return FT_Outline_New_Internal( library->memory, numPoints,
numContours, outline );
}
/*************************************************************************/
/* */
@ -414,12 +424,10 @@
/* The reason why this function takes an `outline' parameter is */
/* simply to use FT_Free(). */
/* */
BASE_FUNC( FT_Error ) FT_Outline_Done( FT_Library library,
FT_Outline* outline )
FT_EXPORT_FUNC( FT_Error ) FT_Outline_Done_Internal( FT_Memory memory,
FT_Outline* outline )
{
FT_Memory memory = library->memory;
if ( outline )
{
if ( outline->flags & ft_outline_owner )
@ -435,7 +443,14 @@
else
return FT_Err_Invalid_Argument;
}
FT_EXPORT_FUNC( FT_Error ) FT_Outline_Done( FT_Library library,
FT_Outline* outline )
{
return FT_Outline_Done_Internal( library->memory, outline );
}
/*************************************************************************/
/* */
@ -463,8 +478,8 @@
/* <MT-Note> */
/* Yes. */
/* */
BASE_FUNC( void ) FT_Outline_Get_CBox( FT_Outline* outline,
FT_BBox* cbox )
FT_EXPORT_FUNC( void ) FT_Outline_Get_CBox( FT_Outline* outline,
FT_BBox* cbox )
{
FT_Pos xMin, yMin, xMax, yMax;
@ -529,9 +544,9 @@
/* <MT-Note> */
/* Yes. */
/* */
BASE_FUNC( void ) FT_Outline_Translate( FT_Outline* outline,
FT_Pos xOffset,
FT_Pos yOffset )
FT_EXPORT_FUNC( void ) FT_Outline_Translate( FT_Outline* outline,
FT_Pos xOffset,
FT_Pos yOffset )
{
FT_UShort n;
FT_Vector* vec = outline->points;
@ -562,7 +577,7 @@
/* This functions toggles the bit flag `ft_outline_reverse_fill' in */
/* the outline's `flags' field. */
/* */
BASE_FUNC( void ) FT_Outline_Reverse( FT_Outline* outline )
FT_EXPORT_FUNC( void ) FT_Outline_Reverse( FT_Outline* outline )
{
FT_UShort n;
FT_Int first, last;

129
src/base/ftstream.c
View File

@ -301,6 +301,24 @@
}
BASE_FUNC( FT_Short ) FT_Get_ShortLE( FT_Stream stream )
{
FT_Byte* p;
FT_Short result;
FT_Assert( stream && stream->cursor );
result = 0;
p = stream->cursor;
if ( p + 1 < stream->limit )
result = NEXT_ShortLE( p );
stream->cursor = p;
return result;
}
BASE_FUNC( FT_Long ) FT_Get_Offset( FT_Stream stream )
{
FT_Byte* p;
@ -335,6 +353,23 @@
}
BASE_FUNC( FT_Long ) FT_Get_LongLE( FT_Stream stream )
{
FT_Byte* p;
FT_Long result;
FT_Assert( stream && stream->cursor );
result = 0;
p = stream->cursor;
if ( p + 3 < stream->limit )
result = NEXT_LongLE( p );
stream->cursor = p;
return result;
}
BASE_FUNC( FT_Char ) FT_Read_Char( FT_Stream stream,
FT_Error* error )
{
@ -417,6 +452,52 @@
}
BASE_FUNC( FT_Short ) FT_Read_ShortLE( FT_Stream stream,
FT_Error* error )
{
FT_Byte reads[2];
FT_Byte* p = 0;
FT_Short result = 0;
FT_Assert( stream );
*error = FT_Err_Ok;
if ( stream->pos + 1 < stream->size )
{
if ( stream->read )
{
if ( stream->read( stream, stream->pos, reads, 2L ) != 2L )
goto Fail;
p = reads;
}
else
{
p = stream->base + stream->pos;
}
if ( p )
result = NEXT_ShortLE( p );
}
else
goto Fail;
stream->pos += 2;
return result;
Fail:
*error = FT_Err_Invalid_Stream_Operation;
FT_ERROR(( "FT_Read_Short:" ));
FT_ERROR(( " invalid i/o; pos = 0x%lx, size = 0x%lx\n",
stream->pos, stream->size ));
return 0;
}
BASE_FUNC( FT_Long ) FT_Read_Offset( FT_Stream stream,
FT_Error* error )
{
@ -509,6 +590,54 @@
}
BASE_FUNC( FT_Long ) FT_Read_LongLE( FT_Stream stream,
FT_Error* error )
{
FT_Byte reads[4];
FT_Byte* p = 0;
FT_Long result = 0;
FT_Assert( stream );
*error = FT_Err_Ok;
if ( stream->pos + 3 < stream->size )
{
if ( stream->read )
{
if ( stream->read( stream, stream->pos, reads, 4L ) != 4L )
goto Fail;
p = reads;
}
else
{
p = stream->base + stream->pos;
}
if ( p )
result = NEXT_LongLE( p );
}
else
goto Fail;
stream->pos += 4;
return result;
Fail:
FT_ERROR(( "FT_Read_Long:" ));
FT_ERROR(( " invalid i/o; pos = 0x%lx, size = 0x%lx\n",
stream->pos, stream->size ));
*error = FT_Err_Invalid_Stream_Operation;
return 0;
}
BASE_FUNC( FT_Error ) FT_Read_Fields( FT_Stream stream,
const FT_Frame_Field* fields,
void* structure )

207
src/cff/t2gload.c
View File

@ -464,19 +464,17 @@
FT_Pos x,
FT_Pos y )
{
FT_Error error;
/* test whether we are building a new contour */
if ( !builder->path_begun )
{
FT_Error error;
builder->path_begun = 1;
error = add_contour( builder );
if ( error )
return error;
if ( !error )
error = add_point1( builder, x, y );
}
return add_point1( builder, x, y );
return error;
}
@ -901,7 +899,7 @@
break;
case t2_op_hmoveto:
FT_TRACE4(( " vmoveto" ));
FT_TRACE4(( " hmoveto" ));
close_contour( builder );
builder->path_begun = 0;
@ -1152,6 +1150,7 @@
}
break;
case t2_op_rcurveline:
{
FT_Int num_curves = ( num_args - 2 ) / 6;
@ -1192,6 +1191,198 @@
}
break;
case t2_op_hflex1:
{
FT_Pos start_y;
FT_TRACE4(( " hflex1" ));
args = stack;
/* Adding five more points; 4 control points, 1 on curve point. */
if (start_point ( builder, x, y ) || check_points ( builder, 5 ) )
goto Memory_Error;
/* Record the starting point's y postion for later use */
start_y = y;
/* first control point */
x += args[0];
y += args[1];
add_point( builder, x, y, 0 );
/* second control point */
x += args[2];
y += args[3];
add_point( builder, x, y, 0 );
/* join point; on curve, with y-value the same as the last */
/* control point's y-value */
x += args[4];
add_point( builder, x, y, 1 );
/* third control point, with y-value the same as the join */
/* point's y-value */
x += args[5];
add_point( builder, x, y, 0 );
/* fourth control point */
x += args[6];
y += args[7];
add_point( builder, x, y, 0 );
/* ending point, with y-value the same as the start */
/* point's y-value. we don't add this point, though. */
x += args[8];
y = start_y;
args = stack;
break;
}
case t2_op_hflex:
{
FT_Pos start_y;
FT_TRACE4(( " hflex" ));
args = stack;
/* Adding five more points; 4 control points, 1 on curve point. */
if (start_point ( builder, x, y ) || check_points ( builder, 5 ) )
goto Memory_Error;
/* Record the starting point's y postion for later use */
start_y = y;
/* first control point */
x += args[0];
add_point( builder, x, y, 0 );
/* second control point */
x += args[1];
y += args[2];
add_point( builder, x, y, 0 );
/* join point; on curve, with y-value the same as the last */
/* control point's y-value */
x += args[3];
add_point( builder, x, y, 1 );
/* third control point, with y-value the same as the join */
/* point's y-value */
x += args[4];
add_point( builder, x, y, 0 );
/* fourth control point */
x += args[5];
y = start_y;
add_point( builder, x, y, 0 );
/* ending point, with y-value the same as the start point's */
/* y-value we don't add this point, though. */
x += args[6];
args = stack;
break;
}
case t2_op_flex1:
{
FT_Pos start_x, start_y; /* record start x,y values for alter use */
FT_Int dx = 0, dy = 0; /* used in hort./vert. algorithm below */
FT_Int hort_flag, count;
FT_TRACE4(( " flex1" ));
/* Adding five more points; 4 control points, 1 on curve point. */
if (start_point ( builder, x, y ) || check_points ( builder, 5 ) )
goto Memory_Error;
/* Record the starting point's x,y postion for later use */
start_x = x;
start_y = y;
/* XXXX: figure out if this is supposed to be a horizontal or */
/* vertical flex. The Type 2 specification is vague... */
args = stack;
/* grab up to the last argument */
while ( args < decoder->top - 1)
{
dx += args[0];
dy += args[1];
args += 2;
}
/* rewind */
args = stack;
if ( dx < 0 ) dx = -dx;
if ( dy < 0 ) dy = -dy;
/* strange test, but here it is... */
hort_flag = (dx > dy);
for ( count = 5; count > 0; count-- )
{
x += args[0];
y += args[1];
add_point( builder, x, y, (FT_Bool)(count == 3) );
args += 2;
}
if (hort_flag)
{
x += args[0];
y = start_y;
}
else
{
x = start_x;
y += args[0];
}
args = stack;
break;
}
case t2_op_flex:
{
FT_UInt count;
FT_TRACE4(( " flex" ));
if (start_point ( builder, x, y ) || check_points ( builder, 5 ) )
goto Memory_Error;
args = stack;
for ( count = 5; count > 0; count-- )
{
x += args[0];
y += args[1];
add_point( builder, x, y, (FT_Bool)(count == 3) );
args += 2;
}
x += args[0];
y += args[1];
args = stack;
}
break;
case t2_op_endchar:
FT_TRACE4(( " endchar" ));

2
src/cid/cidload.c
View File

@ -239,7 +239,7 @@
const CID_Field_Rec t1_field_records[] =
{
#include <cidtokens.h>
{ 0 }
{ 0, 0, 0, 0, 0, 0, 0, 0 }
};

1
src/type1/t1tokens.c
View File

@ -373,6 +373,7 @@
return T1_Err_Ok;
Fail:
FREE( tokzer->base );
FREE( tokzer );
return error;
}