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Handle properties in `FREETYPE_PROPERTIES' environment variable. 

This commit covers the most important one.

* src/autofit/afmodule.c (af_property_set): Handle `warping',
`darkening-parameters', and `no-stem-darkening'.

* src/cff/cffdrivr.c (cff_property_set): Handle
`darkening-parameters', `hinting-engine', and `no-stem-darkening'.

* src/truetype/ttdriver.c (tt_property_set): Handle
`interpreter-version'.
This commit is contained in:
Werner Lemberg 2016-07-11 15:11:38 +02:00
parent c3e83b4662
commit 8f8ae8c52d
7 changed files with 176 additions and 40 deletions
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15
ChangeLog
View File

@ -1,3 +1,18 @@
2016-07-11 Werner Lemberg <wl@gnu.org>
Handle properties in `FREETYPE_PROPERTIES' environment variable.
This commit covers the most important one.
* src/autofit/afmodule.c (af_property_set): Handle `warping',
`darkening-parameters', and `no-stem-darkening'.
* src/cff/cffdrivr.c (cff_property_set): Handle
`darkening-parameters', `hinting-engine', and `no-stem-darkening'.
* src/truetype/ttdriver.c (tt_property_set): Handle
`interpreter-version'.
2016-07-11 Werner Lemberg <wl@gnu.org>
Replace calls to `atol' with `strtol'.

8
include/freetype/ftautoh.h
View File

@ -428,6 +428,9 @@ FT_BEGIN_HEADER
* @note:
* This property can be used with @FT_Property_Get also.
*
* This property can be set via the `FREETYPE_PROPERTIES' environment
* variable (using values 1 and 0 for `on' and `off', respectively).
*
* The warping code can also change advance widths. Have a look at the
* `lsb_delta' and `rsb_delta' fields in the @FT_GlyphSlotRec structure
* for details on improving inter-glyph distances while rendering.
@ -473,6 +476,9 @@ FT_BEGIN_HEADER
* The smaller the size (especially 9ppem and down), the higher the loss
* of emboldening versus the CFF driver.
*
* This property can be set via the `FREETYPE_PROPERTIES' environment
* variable similar to the CFF driver.
*
*/
@ -489,6 +495,8 @@ FT_BEGIN_HEADER
* CFF_CONFIG_OPTION_DARKENING_PARAMETER_* #defines for consistency.
* Note the differences described in @no-stem-darkening[autofit].
*
* This property can be set via the `FREETYPE_PROPERTIES' environment
* variable similar to the CFF driver.
*/

13
include/freetype/ftcffdrv.h
View File

@ -148,6 +148,8 @@ FT_BEGIN_HEADER
* @note:
* This property can be used with @FT_Property_Get also.
*
* This property can be set via the `FREETYPE_PROPERTIES' environment
* variable (using values `adobe' or `freetype').
*/
@ -199,6 +201,9 @@ FT_BEGIN_HEADER
* @note:
* This property can be used with @FT_Property_Get also.
*
* This property can be set via the `FREETYPE_PROPERTIES' environment
* variable (using values 1 and 0 for `on' and `off', respectively).
*
*/
@ -248,6 +253,14 @@ FT_BEGIN_HEADER
* @note:
* This property can be used with @FT_Property_Get also.
*
* This property can be set via the `FREETYPE_PROPERTIES' environment
* variable, using eight comma-separated integers without spaces. Here
* the above example, using `\' to break the line for readability.
*
* {
* FREETYPE_PROPERTIES=\
* cff:darkening-parameters=500,300,1000,200,1500,100,2000,0
* }
*/
/* */

2
include/freetype/ftttdrv.h
View File

@ -181,6 +181,8 @@ FT_BEGIN_HEADER
* @note:
* This property can be used with @FT_Property_Get also.
*
* This property can be set via the `FREETYPE_PROPERTIES' environment
* variable (using values `35', `38', or `40').
*/

72
src/autofit/afmodule.c
View File

@ -184,15 +184,26 @@
#ifdef AF_CONFIG_OPTION_USE_WARPER
else if ( !ft_strcmp( property_name, "warping" ) )
{
FT_Bool* warping;
if ( value_is_string )
return FT_THROW( Invalid_Argument );
{
const char* s = (const char*)value;
long w = ft_strtol( s, NULL, 10 );
warping = (FT_Bool*)value;
module->warping = *warping;
if ( w == 0 )
module->warping = 0;
else if ( w == 1 )
module->warping = 1;
else
return FT_THROW( Invalid_Argument );
}
else
{
FT_Bool* warping = (FT_Bool*)value;
module->warping = *warping;
}
return error;
}
@ -201,12 +212,34 @@
{
FT_Int* darken_params;
FT_Int x1, y1, x2, y2, x3, y3, x4, y4;
FT_Int dp[8];
if ( value_is_string )
return FT_THROW( Invalid_Argument );
{
const char* s = (const char*)value;
char* ep;
int i;
darken_params = (FT_Int*)value;
/* eight comma-separated numbers */
for ( i = 0; i < 7; i++ )
{
dp[i] = (FT_Int)ft_strtol( s, &ep, 10 );
if ( *ep != ',' || s == ep )
return FT_THROW( Invalid_Argument );
s = ep + 1;
}
dp[7] = (FT_Int)ft_strtol( s, &ep, 10 );
if ( !( *ep == '\0' || *ep == ' ' ) || s == ep )
return FT_THROW( Invalid_Argument );
darken_params = dp;
}
else
darken_params = (FT_Int*)value;
x1 = darken_params[0];
y1 = darken_params[1];
@ -236,15 +269,26 @@
}
else if ( !ft_strcmp( property_name, "no-stem-darkening" ) )
{
FT_Bool* no_stem_darkening;
if ( value_is_string )
return FT_THROW( Invalid_Argument );
{
const char* s = (const char*)value;
long nsd = ft_strtol( s, NULL, 10 );
no_stem_darkening = (FT_Bool*)value;
module->no_stem_darkening = *no_stem_darkening;
if ( nsd == 0 )
module->no_stem_darkening = 0;
else if ( nsd == 1 )
module->no_stem_darkening = 1;
else
return FT_THROW( Invalid_Argument );
}
else
{
FT_Bool* no_stem_darkening = (FT_Bool*)value;
module->no_stem_darkening = *no_stem_darkening;
}
return error;
}

82
src/cff/cffdrivr.c
View File

@ -670,12 +670,34 @@
{
FT_Int* darken_params;
FT_Int x1, y1, x2, y2, x3, y3, x4, y4;
FT_Int dp[8];
if ( value_is_string )
return FT_THROW( Invalid_Argument );
{
const char* s = (const char*)value;
char* ep;
int i;
darken_params = (FT_Int*)value;
/* eight comma-separated numbers */
for ( i = 0; i < 7; i++ )
{
dp[i] = (FT_Int)ft_strtol( s, &ep, 10 );
if ( *ep != ',' || s == ep )
return FT_THROW( Invalid_Argument );
s = ep + 1;
}
dp[7] = (FT_Int)ft_strtol( s, &ep, 10 );
if ( !( *ep == '\0' || *ep == ' ' ) || s == ep )
return FT_THROW( Invalid_Argument );
darken_params = dp;
}
else
darken_params = (FT_Int*)value;
x1 = darken_params[0];
y1 = darken_params[1];
@ -705,36 +727,58 @@
}
else if ( !ft_strcmp( property_name, "hinting-engine" ) )
{
FT_UInt* hinting_engine;
if ( value_is_string )
return FT_THROW( Invalid_Argument );
{
const char* s = (const char*)value;
hinting_engine = (FT_UInt*)value;
if ( *hinting_engine == FT_CFF_HINTING_ADOBE
if ( !ft_strcmp( s, "adobe" ) )
driver->hinting_engine = FT_CFF_HINTING_ADOBE;
#ifdef CFF_CONFIG_OPTION_OLD_ENGINE
|| *hinting_engine == FT_CFF_HINTING_FREETYPE
else if ( !ft_strcmp( s, "freetype" ) )
driver->hinting_engine = FT_CFF_HINTING_FREETYPE;
#endif
)
driver->hinting_engine = *hinting_engine;
else
return FT_THROW( Invalid_Argument );
}
else
error = FT_ERR( Unimplemented_Feature );
{
FT_UInt* hinting_engine = (FT_UInt*)value;
return error;
if ( *hinting_engine == FT_CFF_HINTING_ADOBE
#ifdef CFF_CONFIG_OPTION_OLD_ENGINE
|| *hinting_engine == FT_CFF_HINTING_FREETYPE
#endif
)
driver->hinting_engine = *hinting_engine;
else
error = FT_ERR( Unimplemented_Feature );
return error;
}
}
else if ( !ft_strcmp( property_name, "no-stem-darkening" ) )
{
FT_Bool* no_stem_darkening;
if ( value_is_string )
return FT_THROW( Invalid_Argument );
{
const char* s = (const char*)value;
long nsd = ft_strtol( s, NULL, 10 );
no_stem_darkening = (FT_Bool*)value;
driver->no_stem_darkening = *no_stem_darkening;
if ( nsd == 0 )
driver->no_stem_darkening = 0;
else if ( nsd == 1 )
driver->no_stem_darkening = 1;
else
return FT_THROW( Invalid_Argument );
}
else
{
FT_Bool* no_stem_darkening = (FT_Bool*)value;
driver->no_stem_darkening = *no_stem_darkening;
}
return error;
}

24
src/truetype/ttdriver.c
View File

@ -70,23 +70,33 @@
if ( !ft_strcmp( property_name, "interpreter-version" ) )
{
FT_UInt* interpreter_version;
FT_UInt interpreter_version;
if ( value_is_string )
return FT_THROW( Invalid_Argument );
{
const char* s = (const char*)value;
interpreter_version = (FT_UInt*)value;
if ( *interpreter_version == TT_INTERPRETER_VERSION_35
interpreter_version = (FT_UInt)ft_strtol( s, NULL, 10 );
}
else
{
FT_UInt* iv = (FT_UInt*)value;
interpreter_version = *iv;
}
if ( interpreter_version == TT_INTERPRETER_VERSION_35
#ifdef TT_SUPPORT_SUBPIXEL_HINTING_INFINALITY
|| *interpreter_version == TT_INTERPRETER_VERSION_38
|| interpreter_version == TT_INTERPRETER_VERSION_38
#endif
#ifdef TT_SUPPORT_SUBPIXEL_HINTING_MINIMAL
|| *interpreter_version == TT_INTERPRETER_VERSION_40
|| interpreter_version == TT_INTERPRETER_VERSION_40
#endif
)
driver->interpreter_version = *interpreter_version;
driver->interpreter_version = interpreter_version;
else
error = FT_ERR( Unimplemented_Feature );