[Git][freetype/freetype][master] * src/base/ftcalc.c (FT_MulAddFix): Simplify 32-bit rounding.

[Alexei Podtelezhnikov (@apodtele)]

Alexei Podtelezhnikov pushed to branch master at FreeType / FreeType

Commits:

• 0c817334
  by Alexei Podtelezhnikov at 2023-08-25T17:57:47+00:00

  * src/base/ftcalc.c (FT_MulAddFix): Simplify 32-bit rounding.

1 changed file:

• src/base/ftcalc.c

Changes:

src/base/ftcalc.c

---

...	...	@@ -1070,9 +1070,6 @@
1070	1070	{
1071	1071	FT_UInt i;
1072	1072	FT_Int64 temp;
1073		-#ifndef FT_INT64
1074		- FT_Int64 halfUnit;
1075		-#endif
1076	1073
1077	1074
1078	1075	#ifdef FT_INT64
...	...	@@ -1117,13 +1114,10 @@
1117	1114	FT_Add64( &temp, &multResult, &temp );
1118	1115	}
1119	1116
1120		- /* Round value. */
1121		- halfUnit.hi = 0;
1122		- halfUnit.lo = 0x8000;
1123		- FT_Add64( &temp, &halfUnit, &temp );
	1117	+ /* Shift and round value. */
	1118	+ return (FT_Int32)( ( ( temp.hi << 16 ) | ( temp.lo >> 16 ) )
	1119	+ + ( 1 & ( temp.lo >> 15 ) ) );
1124	1120
1125		- return (FT_Int32)( ( (FT_Int32)( temp.hi & 0xFFFF ) << 16 ) |
1126		- ( temp.lo >> 16 ) );
1127	1121
1128	1122	#endif /* !FT_INT64 */
1129	1123

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