diff options
Diffstat (limited to 'include/config/ftconfig.h')
| -rw-r--r-- | include/config/ftconfig.h | 215 |
1 files changed, 1 insertions, 214 deletions
diff --git a/include/config/ftconfig.h b/include/config/ftconfig.h index 0770e78..89a0f8f 100644 --- a/include/config/ftconfig.h +++ b/include/config/ftconfig.h @@ -4,7 +4,7 @@ /* */ /* ANSI-specific configuration file (specification only). */ /* */ -/* Copyright 1996-2004, 2006-2008, 2010-2011, 2013 by */ +/* Copyright 1996-2004, 2006-2008, 2010-2011, 2013, 2014 by */ /* David Turner, Robert Wilhelm, and Werner Lemberg. */ /* */ /* This file is part of the FreeType project, and may only be used, */ @@ -333,219 +333,6 @@ FT_BEGIN_HEADER #define FT_DUMMY_STMNT FT_BEGIN_STMNT FT_END_STMNT -#ifndef FT_CONFIG_OPTION_NO_ASSEMBLER - /* Provide assembler fragments for performance-critical functions. */ - /* These must be defined `static __inline__' with GCC. */ - -#if defined( __CC_ARM ) || defined( __ARMCC__ ) /* RVCT */ - -#define FT_MULFIX_ASSEMBLER FT_MulFix_arm - - /* documentation is in freetype.h */ - - static __inline FT_Int32 - FT_MulFix_arm( FT_Int32 a, - FT_Int32 b ) - { - register FT_Int32 t, t2; - - - __asm - { - smull t2, t, b, a /* (lo=t2,hi=t) = a*b */ - mov a, t, asr #31 /* a = (hi >> 31) */ - add a, a, #0x8000 /* a += 0x8000 */ - adds t2, t2, a /* t2 += a */ - adc t, t, #0 /* t += carry */ - mov a, t2, lsr #16 /* a = t2 >> 16 */ - orr a, a, t, lsl #16 /* a |= t << 16 */ - } - return a; - } - -#endif /* __CC_ARM || __ARMCC__ */ - - -#ifdef __GNUC__ - -#if defined( __arm__ ) && \ - ( !defined( __thumb__ ) || defined( __thumb2__ ) ) && \ - !( defined( __CC_ARM ) || defined( __ARMCC__ ) ) - -#define FT_MULFIX_ASSEMBLER FT_MulFix_arm - - /* documentation is in freetype.h */ - - 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) */ -#ifdef __clang__ - "add.w %0, %0, #0x8000\n\t" /* %0 += 0x8000 */ -#else - "add %0, %0, #0x8000\n\t" /* %0 += 0x8000 */ -#endif - "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, %0, %2, lsl #16\n\t" /* %0 |= %2 << 16 */ - : "=r"(a), "=&r"(t2), "=&r"(t) - : "r"(a), "r"(b) - : "cc" ); - return a; - } - -#endif /* __arm__ && */ - /* ( __thumb2__ || !__thumb__ ) && */ - /* !( __CC_ARM || __ARMCC__ ) */ - - -#if defined( __i386__ ) - -#define FT_MULFIX_ASSEMBLER FT_MulFix_i386 - - /* documentation is in freetype.h */ - - 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), "=d"(b) - : "a"(a), "d"(b) - : "%ecx", "cc" ); - return result; - } - -#endif /* i386 */ - -#endif /* __GNUC__ */ - - -#ifdef _MSC_VER /* Visual C++ */ - -#ifdef _M_IX86 - -#define FT_MULFIX_ASSEMBLER FT_MulFix_i386 - - /* documentation is in freetype.h */ - - static __inline FT_Int32 - FT_MulFix_i386( FT_Int32 a, - FT_Int32 b ) - { - register FT_Int32 result; - - __asm - { - mov eax, a - mov edx, b - imul edx - mov ecx, edx - sar ecx, 31 - add ecx, 8000h - add eax, ecx - adc edx, 0 - shr eax, 16 - shl edx, 16 - add eax, edx - mov result, eax - } - return result; - } - -#endif /* _M_IX86 */ - -#endif /* _MSC_VER */ - - -#if defined( __GNUC__ ) && defined( __x86_64__ ) - -#define FT_MULFIX_ASSEMBLER FT_MulFix_x86_64 - - static __inline__ FT_Int32 - FT_MulFix_x86_64( FT_Int32 a, - FT_Int32 b ) - { - /* Temporarily disable the warning that C90 doesn't support */ - /* `long long'. */ -#if ( __GNUC__ > 4 ) || ( ( __GNUC__ == 4 ) && ( __GNUC_MINOR__ >= 6 ) ) -#pragma GCC diagnostic push -#pragma GCC diagnostic ignored "-Wlong-long" -#endif - -#if 1 - /* Technically not an assembly fragment, but GCC does a really good */ - /* job at inlining it and generating good machine code for it. */ - long long ret, tmp; - - - ret = (long long)a * b; - tmp = ret >> 63; - ret += 0x8000 + tmp; - - return (FT_Int32)( ret >> 16 ); -#else - - /* For some reason, GCC 4.6 on Ubuntu 12.04 generates invalid machine */ - /* code from the lines below. The main issue is that `wide_a' is not */ - /* properly initialized by sign-extending `a'. Instead, the generated */ - /* machine code assumes that the register that contains `a' on input */ - /* can be used directly as a 64-bit value, which is wrong most of the */ - /* time. */ - long long wide_a = (long long)a; - long long wide_b = (long long)b; - long long result; - - - __asm__ __volatile__ ( - "imul %2, %1\n" - "mov %1, %0\n" - "sar $63, %0\n" - "lea 0x8000(%1, %0), %0\n" - "sar $16, %0\n" - : "=&r"(result), "=&r"(wide_a) - : "r"(wide_b) - : "cc" ); - - return (FT_Int32)result; -#endif - -#if ( __GNUC__ > 4 ) || ( ( __GNUC__ == 4 ) && ( __GNUC_MINOR__ >= 6 ) ) -#pragma GCC diagnostic pop -#endif - } - -#endif /* __GNUC__ && __x86_64__ */ - -#endif /* !FT_CONFIG_OPTION_NO_ASSEMBLER */ - - -#ifdef FT_CONFIG_OPTION_INLINE_MULFIX -#ifdef FT_MULFIX_ASSEMBLER -#define FT_MULFIX_INLINED FT_MULFIX_ASSEMBLER -#endif -#endif - - #ifdef FT_MAKE_OPTION_SINGLE_OBJECT #define FT_LOCAL( x ) static x |