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Added implementation of three new functions: FT_RoundFix, FT_CeilFix,

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and FT_FloorFix.
This commit is contained in:
Tom Kacvinsky 2001-03-10 19:02:51 +00:00
parent 30e00c6be6
commit 36c8728acb
1 changed files with 28 additions and 1 deletions
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29
src/base/ftcalc.c
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@ -26,7 +26,8 @@
/* */
/* Implementing basic computation routines. */
/* */
/* FT_MulDiv(), FT_MulFix(), and FT_DivFix() are declared in freetype.h. */
/* FT_MulDiv(), FT_MulFix(), FT_DivFix(), FT_RoundFix(), FT_CeilFix(), */
/* and FT_FloorFix() are declared in freetype.h. */
/* */
/*************************************************************************/
@ -46,6 +47,32 @@
#undef FT_COMPONENT
#define FT_COMPONENT trace_calc
/* The following three functions are available regardless of whether */
/* FT_LONG64 or FT_CONFIG_OPTION_OLD_CALCS is defined. */
/* documentation is in freetype.h */
FT_EXPORT_DEF( FT_Fixed ) FT_RoundFix( FT_Fixed a )
{
return( ( a + 0x8000L ) & -0x10000L );
}
/* documentation is in freetype.h */
FT_EXPORT_DEF( FT_Fixed ) FT_CeilFix( FT_Fixed a )
{
return( ( a + 0x10000L - 1 ) & -0x10000L );
}
/* documentation is in freetype.h */
FT_EXPORT_DEF( FT_Fixed ) FT_FloorFix( FT_Fixed a )
{
return( a & -0x10000L );
}
#ifdef FT_CONFIG_OPTION_OLD_CALCS