Commit f8220925c970faf6d0e71a8f89b0aa81b1111656
2001-03-10T19:01:21
Added prototypes and notes for three new functions: FT_RoundFix, FT_CeilFix, and FT_FloorFix.
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diff --git a/include/freetype/freetype.h b/include/freetype/freetype.h
index d0fb855..1d07590 100644
--- a/include/freetype/freetype.h
+++ b/include/freetype/freetype.h
@@ -2227,6 +2227,9 @@ FT_BEGIN_HEADER
/* FT_MulDiv */
/* FT_MulFix */
/* FT_DivFix */
+ /* FT_RoundFix */
+ /* FT_CeilFix */
+ /* FT_FloorFix */
/* FT_Vector_Transform */
/* FT_Matrix_Multiply */
/* FT_Matrix_Invert */
@@ -2325,6 +2328,71 @@ FT_BEGIN_HEADER
/*************************************************************************/
/* */
/* <Function> */
+ /* FT_RoundFix */
+ /* */
+ /* <Description> */
+ /* A very simple function used to round a 16.16 fixed number */
+ /* */
+ /* <Input> */
+ /* a :: The number to be rounded. */
+ /* */
+ /* <Return> */
+ /* The result of `(a + 0x8000) & -0x10000'. */
+ /* */
+ /* <Note> */
+ /* This function assumes that the target platform supports 32 bit */
+ /* signed integers. */
+ /* */
+ FT_EXPORT( FT_Fixed ) FT_RoundFix( FT_Fixed a );
+
+
+ /*************************************************************************/
+ /* */
+ /* <Function> */
+ /* FT_CeilFix */
+ /* */
+ /* <Description> */
+ /* A very simple function used to compute the ceiling function of a */
+ /* 16.16 fixed number */
+ /* */
+ /* <Input> */
+ /* a :: The number for which the ceiling function is to be computed. */
+ /* */
+ /* <Return> */
+ /* The result of `(a + 0x10000 - 1) & -0x10000'. */
+ /* */
+ /* <Note> */
+ /* This function assumes that the target platform supports 32 bit */
+ /* signed integers. */
+ /* */
+ FT_EXPORT( FT_Fixed ) FT_CeilFix( FT_Fixed a );
+
+
+ /*************************************************************************/
+ /* */
+ /* <Function> */
+ /* FT_FloorFix */
+ /* */
+ /* <Description> */
+ /* A very simple function used to compute the floor function of a */
+ /* 16.16 fixed number */
+ /* */
+ /* <Input> */
+ /* a :: The number for which the floor function is to be computed. */
+ /* */
+ /* <Return> */
+ /* The result of `a & -0x10000'. */
+ /* */
+ /* <Note> */
+ /* This function assumes that the target platform supports 32 bit */
+ /* signed integers. */
+ /* */
+ FT_EXPORT( FT_Fixed ) FT_FloorFix( FT_Fixed a );
+
+
+ /*************************************************************************/
+ /* */
+ /* <Function> */
/* FT_Vector_Transform */
/* */
/* <Description> */