fontconfig/doc/fcweight.fncs

/*
 * fontconfig/doc/fcweight.fncs
 *
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@RET@		double
@FUNC@		FcWeightFromOpenTypeDouble
@TYPE1@		double				@ARG1@		ot_weight
@PURPOSE@	Convert from OpenType weight values to fontconfig ones
@DESC@
<function>FcWeightFromOpenTypeDouble</function> returns an double value
to use with FC_WEIGHT, from an double in the 1..1000 range, resembling
the numbers from OpenType specification's OS/2 usWeight numbers, which
are also similar to CSS font-weight numbers.  If input is negative,
zero, or greater than 1000, returns -1.  This function linearly interpolates
between various FC_WEIGHT_* constants.  As such, the returned value does not
necessarily match any of the predefined constants.
@SINCE@		2.12.92
@@

@RET@		double
@FUNC@		FcWeightToOpenTypeDouble
@TYPE1@		double				@ARG1@		ot_weight
@PURPOSE@	Convert from fontconfig weight values to OpenType ones
@DESC@
<function>FcWeightToOpenTypeDouble</function> is the inverse of
<function>FcWeightFromOpenType</function>.  If the input is less than
FC_WEIGHT_THIN or greater than FC_WEIGHT_EXTRABLACK, returns -1.  Otherwise
returns a number in the range 1 to 1000.
@SINCE@		2.12.92
@@

@RET@		int
@FUNC@		FcWeightFromOpenType
@TYPE1@		int				@ARG1@		ot_weight
@PURPOSE@	Convert from OpenType weight values to fontconfig ones
@DESC@
<function>FcWeightFromOpenType</function> is like
<function>FcWeightFromOpenTypeDouble</function> but with integer arguments.
Use the other function instead.
@SINCE@		2.11.91
@@

@RET@		int
@FUNC@		FcWeightToOpenType
@TYPE1@		int				@ARG1@		ot_weight
@PURPOSE@	Convert from fontconfig weight values to OpenType ones
@DESC@
<function>FcWeightToOpenType</function> is like
<function>FcWeightToOpenTypeDouble</function> but with integer arguments.
Use the other function instead.
@SINCE@		2.11.91
@@