mirror of
https://github.com/ZDoom/gzdoom-gles.git
synced 2024-11-11 15:22:15 +00:00
344dda4a1a
former used fistp, which is not portable across platforms, so cannot be used in the play simulation. They were only suitable for the renderer. xs_Float.h also has a very fast float->fixed conversion, so FLOAT2FIXED uses that now. (And I also learned that the FPU's round to nearest is not the rounding I learned in grade school but actually Banker's Rounding. I had no idea.) (Also, also, the only thing that could have made quickertoint faster than toint was that it stored a 32-bit int. I never timed them, and I doubt in practice there was any real difference between the two.) - Changed atan2f to atan2. Using floats is not a win, because the result is returned as a double on the x87 stack, which the caller then needs to cast down to a float using fst/fld. SVN r1990 (trunk)
102 lines
2.2 KiB
C
102 lines
2.2 KiB
C
#ifndef __BASICTYPES_H
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#define __BASICTYPES_H
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#ifdef _MSC_VER
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typedef __int8 SBYTE;
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typedef unsigned __int8 BYTE;
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typedef __int16 SWORD;
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typedef unsigned __int16 WORD;
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typedef __int32 SDWORD;
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typedef unsigned __int32 uint32;
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typedef __int64 SQWORD;
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typedef unsigned __int64 QWORD;
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#else
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#include <stdint.h>
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typedef int8_t SBYTE;
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typedef uint8_t BYTE;
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typedef int16_t SWORD;
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typedef uint16_t WORD;
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typedef int32_t SDWORD;
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typedef uint32_t uint32;
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typedef int64_t SQWORD;
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typedef uint64_t QWORD;
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#endif
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typedef SDWORD int32;
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typedef float real32;
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typedef double real64;
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// windef.h, included by windows.h, has its own incompatible definition
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// of DWORD as a long. In files that mix Doom and Windows code, you
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// must define USE_WINDOWS_DWORD before including doomtype.h so that
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// you are aware that those files have a different DWORD than the rest
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// of the source.
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#ifndef USE_WINDOWS_DWORD
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typedef uint32 DWORD;
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#endif
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typedef uint32 BITFIELD;
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typedef int INTBOOL;
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// a 64-bit constant
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#ifdef __GNUC__
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#define CONST64(v) (v##LL)
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#define UCONST64(v) (v##ULL)
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#else
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#define CONST64(v) ((SQWORD)(v))
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#define UCONST64(v) ((QWORD)(v))
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#endif
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#if !defined(GUID_DEFINED)
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#define GUID_DEFINED
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typedef struct _GUID
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{
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DWORD Data1;
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WORD Data2;
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WORD Data3;
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BYTE Data4[8];
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} GUID;
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#endif
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union QWORD_UNION
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{
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QWORD AsOne;
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struct
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{
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#ifdef __BIG_ENDIAN__
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unsigned int Hi, Lo;
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#else
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unsigned int Lo, Hi;
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#endif
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};
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};
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//
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// Fixed point, 32bit as 16.16.
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//
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#define FRACBITS 16
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#define FRACUNIT (1<<FRACBITS)
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typedef SDWORD fixed_t;
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typedef DWORD dsfixed_t; // fixedpt used by span drawer
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#define FIXED_MAX (signed)(0x7fffffff)
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#define FIXED_MIN (signed)(0x80000000)
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#define DWORD_MIN ((uint32)0)
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#define DWORD_MAX ((uint32)0xffffffff)
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#ifdef __GNUC__
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#define GCCPRINTF(stri,firstargi) __attribute__((format(printf,stri,firstargi)))
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#define GCCFORMAT(stri) __attribute__((format(printf,stri,0)))
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#define GCCNOWARN __attribute__((unused))
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#else
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#define GCCPRINTF(a,b)
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#define GCCFORMAT(a)
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#define GCCNOWARN
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#endif
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#endif
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