mirror of https://github.com/ZDoom/raze-gles.git
115 lines
2.6 KiB
C
115 lines
2.6 KiB
C
#pragma once
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#include <stddef.h>
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#include <stdint.h>
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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 int32_t fixed_t;
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#define FIXED_MAX (signed)(0x7fffffff)
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#define FIXED_MIN (signed)(0x80000000)
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// the last remnants of tables.h
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#define ANGLE_90 (0x40000000)
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#define ANGLE_180 (0x80000000)
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#define ANGLE_270 (0xc0000000)
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#define ANGLE_MAX (0xffffffff)
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typedef uint32_t angle_t;
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#if defined(__GNUC__)
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// With versions of GCC newer than 4.2, it appears it was determined that the
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// cost of an unaligned pointer on PPC was high enough to add padding to the
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// end of packed structs. For whatever reason __packed__ and pragma pack are
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// handled differently in this regard. Note that this only needs to be applied
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// to types which are used in arrays or sizeof is needed. This also prevents
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// code from taking references to the struct members.
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#define FORCE_PACKED __attribute__((__packed__))
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#else
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#define FORCE_PACKED
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#endif
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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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#ifndef MAKE_ID
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#ifndef __BIG_ENDIAN__
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#define MAKE_ID(a,b,c,d) ((uint32_t)((a)|((b)<<8)|((c)<<16)|((d)<<24)))
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#else
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#define MAKE_ID(a,b,c,d) ((uint32_t)((d)|((c)<<8)|((b)<<16)|((a)<<24)))
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#endif
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#endif
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using INTBOOL = int;
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using BITFIELD = uint32_t;
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#if defined(_MSC_VER)
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#define NOVTABLE __declspec(novtable)
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#else
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#define NOVTABLE
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#endif
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// always use our own definition for consistency.
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#ifdef M_PI
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#undef M_PI
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#endif
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const double M_PI = 3.14159265358979323846; // matches value in gcc v2 math.h
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inline float DEG2RAD(float deg)
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{
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return deg * float(M_PI / 180.0);
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}
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inline double DEG2RAD(double deg)
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{
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return deg * (M_PI / 180.0);
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}
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inline float RAD2DEG(float deg)
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{
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return deg * float(180. / M_PI);
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}
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// Auto-registration sections for GCC.
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// Apparently, you cannot do string concatenation inside section attributes.
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#ifdef __MACH__
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#define SECTION_AREG "__DATA,areg"
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#define SECTION_CREG "__DATA,creg"
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#define SECTION_FREG "__DATA,freg"
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#define SECTION_GREG "__DATA,greg"
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#define SECTION_MREG "__DATA,mreg"
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#define SECTION_YREG "__DATA,yreg"
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#else
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#define SECTION_AREG "areg"
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#define SECTION_CREG "creg"
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#define SECTION_FREG "freg"
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#define SECTION_GREG "greg"
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#define SECTION_MREG "mreg"
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#define SECTION_YREG "yreg"
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#endif
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// This is needed in common code, despite being Doom specific.
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enum EStateUseFlags
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{
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SUF_ACTOR = 1,
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SUF_OVERLAY = 2,
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SUF_WEAPON = 4,
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SUF_ITEM = 8,
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};
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