diff options
Diffstat (limited to 'include/freetype/config/ftconfig.h')
| -rw-r--r-- | include/freetype/config/ftconfig.h | 122 |
1 files changed, 117 insertions, 5 deletions
diff --git a/include/freetype/config/ftconfig.h b/include/freetype/config/ftconfig.h index 1547f5a..8336be5 100644 --- a/include/freetype/config/ftconfig.h +++ b/include/freetype/config/ftconfig.h @@ -45,7 +45,6 @@ FT_BEGIN_HEADER - /*************************************************************************/ /* */ /* PLATFORM-SPECIFIC CONFIGURATION MACROS */ @@ -139,12 +138,63 @@ FT_BEGIN_HEADER /*************************************************************************/ /* */ - /* IntN types */ + /* <Section> */ + /* basic_types */ + /* */ + /*************************************************************************/ + + + /*************************************************************************/ + /* */ + /* <Type> */ + /* FT_Int16 */ + /* */ + /* <Description> */ + /* A typedef for a 16bit signed integer type. */ + /* */ + typedef signed short FT_Int16; + + + /*************************************************************************/ + /* */ + /* <Type> */ + /* FT_UInt16 */ /* */ - /* Used to guarantee the size of some specific integers. */ + /* <Description> */ + /* A typedef for a 16bit unsigned integer type. */ /* */ - typedef signed short FT_Int16; typedef unsigned short FT_UInt16; + /* */ + + + /* this #if 0 ... #endif clause is for documentation purposes */ +#if 0 + + /*************************************************************************/ + /* */ + /* <Type> */ + /* FT_Int32 */ + /* */ + /* <Description> */ + /* A typedef for a 32bit signed integer type. The size depends on */ + /* the configuration. */ + /* */ + typedef signed XXX FT_Int32; + + + /*************************************************************************/ + /* */ + /* <Type> */ + /* FT_UInt32 */ + /* */ + /* A typedef for a 32bit unsigned integer type. The size depends on */ + /* the configuration. */ + /* */ + typedef unsigned XXX FT_UInt32; + + /* */ + +#endif #if FT_SIZEOF_INT == (32 / FT_CHAR_BIT) @@ -173,6 +223,68 @@ FT_BEGIN_HEADER #endif +#if !defined(FT_CONFIG_OPTION_NO_ASSEMBLER) +/* provide assembler fragments for performance-critical + * functions. these must be defined static __inline__ + * with GCC + */ +#if defined(__GNUC__) + +# if defined(__arm__) && !defined(__thumb__) +# define FT_MULFIX_ASSEMBLER FT_MulFix_arm + static __inline__ FT_Int32 + FT_MulFix_arm( FT_Int32 a, FT_Int32 b ) + { + register FT_Int32 t, t2; + asm __volatile__ ( + "smull %1, %2, %4, %3\n\t" /* (lo=%1,hi=%2) = a*b */ + "mov %0, %2, asr #31\n\t" /* %0 = (hi >> 31) */ + "add %0, %0, #0x8000\n\t" /* %0 += 0x8000 */ + "adds %1, %1, %0\n\t" /* %1 += %0 */ + "adc %2, %2, #0\n\t" /* %2 += carry */ + "mov %0, %1, lsr #16\n\t" /* %0 = %1 >> 16 */ + "orr %0, %2, lsl #16\n\t" /* %0 |= %2 << 16 */ + : "=r"(a), "=&r"(t2), "=&r"(t) + : "r"(a), "r"(b) + ); + return a; + } +# endif + +# if defined(i386) +# define FT__MULFIX_ASSEMBLER FT_MulFix_i386 + static __inline__ FT_Int32 + FT_MulFix_i386( FT_Int32 a, FT_Int32 b ) + { + register FT_Int32 result; + + __asm__ __volatile__ ( + "imul %%edx\n" + "movl %%edx, %%ecx\n" + "sarl $31, %%ecx\n" + "addl $0x8000, %%ecx\n" + "addl %%ecx, %%eax\n" + "adcl $0, %%edx\n" + "shrl $16, %%eax\n" + "shll $16, %%edx\n" + "addl %%edx, %%eax\n" + : "=a"(result) + : "a"(a), "d"(b) + : "%ecx" + ); + return result; + } +# endif + +#endif /* __GNUC__ */ +#endif /* !NO_ASSEMBLER */ + +#ifdef FT_CONFIG_OPTION_INLINE_MULFIX +# ifdef FT_MULFIX_ASSEMBLER +# define FT_MULFIX_INLINED FT_MULFIX_ASSEMBLER +# endif +#endif + /* determine whether we have a 64-bit int type for platforms without */ /* Autoconf */ @@ -272,7 +384,7 @@ FT_BEGIN_HEADER #ifndef FT_BASE_DEF #ifdef __cplusplus -#define FT_BASE_DEF( x ) x +#define FT_BASE_DEF( x ) extern "C" x #else #define FT_BASE_DEF( x ) x #endif |