mirror of
https://github.com/ZDoom/raze-gles.git
synced 2024-12-26 03:30:46 +00:00
1048 lines
26 KiB
C++
1048 lines
26 KiB
C++
// Compatibility declarations for things which might not be present in
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// certain build environments. It also levels the playing field caused
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// by different platforms.
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#ifndef compat_h_
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#define compat_h_
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#pragma once
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////////// Compiler detection //////////
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#ifdef __GNUC__
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# define EDUKE32_GCC_PREREQ(major, minor) (major < __GNUC__ || (major == __GNUC__ && minor <= __GNUC_MINOR__))
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#else
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# define EDUKE32_GCC_PREREQ(major, minor) 0
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#endif
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#ifdef __clang__
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# define EDUKE32_CLANG_PREREQ(major, minor) (major < __clang_major__ || (major == __clang_major__ && minor <= __clang_minor__))
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#else
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# define EDUKE32_CLANG_PREREQ(major, minor) 0
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#endif
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#ifndef __has_builtin
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# define __has_builtin(x) 0 // Compatibility with non-clang compilers.
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#endif
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#ifndef __has_feature
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# define __has_feature(x) 0 // Compatibility with non-clang compilers.
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#endif
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#ifndef __has_extension
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# define __has_extension __has_feature // Compatibility with pre-3.0 compilers.
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#endif
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////////// Language and compiler feature polyfills //////////
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#ifdef __cplusplus
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# define EXTERNC extern "C"
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#else
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# define EXTERNC
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#endif
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#ifndef UNREFERENCED_PARAMETER
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# define UNREFERENCED_PARAMETER(x) (x) = (x)
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#endif
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#ifdef __GNUC__
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# define UNUSED(x) UNUSED_ ## x __attribute__((unused))
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# define PRINTF_FORMAT(stringindex, firstargindex) __attribute__((format (printf, stringindex, firstargindex)))
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#else
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# define UNUSED(x) x
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# define PRINTF_FORMAT(stringindex, firstargindex)
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#endif
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#if defined __GNUC__ || defined __clang__
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# define ATTRIBUTE(attrlist) __attribute__(attrlist)
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#else
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# define ATTRIBUTE(attrlist)
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#endif
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#if !defined __clang__ && !defined USING_LTO
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# define ATTRIBUTE_OPTIMIZE(str) ATTRIBUTE((optimize(str)))
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#else
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# define ATTRIBUTE_OPTIMIZE(str)
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#endif
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#if EDUKE32_GCC_PREREQ(4,0)
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# define WARN_UNUSED_RESULT __attribute__((warn_unused_result))
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#else
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# define WARN_UNUSED_RESULT
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#endif
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#if defined _MSC_VER && _MSC_VER < 1800
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# define inline __inline
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#endif
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#ifndef FORCE_INLINE
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# ifdef _MSC_VER
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# define FORCE_INLINE __forceinline
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# else
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# ifdef __GNUC__
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# define FORCE_INLINE inline __attribute__((always_inline))
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# else
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# define FORCE_INLINE inline
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# endif
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# endif
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#endif
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#ifndef _MSC_VER
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# ifndef __fastcall
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# if defined(__GNUC__) && defined(__i386__)
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# define __fastcall __attribute__((fastcall))
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# else
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# define __fastcall
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# endif
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# endif
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#endif
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#ifndef DISABLE_INLINING
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# define EXTERN_INLINE static inline
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# define EXTERN_INLINE_HEADER static inline
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#else
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# define EXTERN_INLINE __fastcall
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# define EXTERN_INLINE_HEADER extern __fastcall
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#endif
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#if defined __GNUC__ || __has_builtin(__builtin_expect)
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#define EDUKE32_PREDICT_TRUE(x) __builtin_expect(!!(x),1)
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#define EDUKE32_PREDICT_FALSE(x) __builtin_expect(!!(x),0)
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#else
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#define EDUKE32_PREDICT_TRUE(x) (x)
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#define EDUKE32_PREDICT_FALSE(x) (x)
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#endif
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#if EDUKE32_GCC_PREREQ(4,5) || __has_builtin(__builtin_unreachable)
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#define EDUKE32_UNREACHABLE_SECTION(...) __builtin_unreachable()
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#elif _MSC_VER
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#define EDUKE32_UNREACHABLE_SECTION(...) __assume(0)
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#else
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#define EDUKE32_UNREACHABLE_SECTION(...) __VA_ARGS__
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#endif
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#if EDUKE32_GCC_PREREQ(2,0) || defined _MSC_VER
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# define EDUKE32_FUNCTION __FUNCTION__
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#elif (defined __STDC_VERSION__ && __STDC_VERSION__ >= 199901L) || (defined __cplusplus && __cplusplus >= 201103L)
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# define EDUKE32_FUNCTION __func__
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#else
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# define EDUKE32_FUNCTION "???"
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#endif
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#ifdef _MSC_VER
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# define EDUKE32_PRETTY_FUNCTION __FUNCSIG__
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#elif EDUKE32_GCC_PREREQ(2,0)
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# define EDUKE32_PRETTY_FUNCTION __PRETTY_FUNCTION__
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#else
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# define EDUKE32_PRETTY_FUNCTION EDUKE32_FUNCTION
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#endif
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/* Static assertions, based on source found in LuaJIT's src/lj_def.h. */
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#define EDUKE32_ASSERT_NAME2(name, line) name ## line
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#define EDUKE32_ASSERT_NAME(line) EDUKE32_ASSERT_NAME2(eduke32_assert_, line)
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#ifdef __COUNTER__
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# define EDUKE32_STATIC_ASSERT(cond) \
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extern void EDUKE32_ASSERT_NAME(__COUNTER__)(int STATIC_ASSERTION_FAILED[(cond)?1:-1])
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#else
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# define EDUKE32_STATIC_ASSERT(cond) \
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extern void EDUKE32_ASSERT_NAME(__LINE__)(int STATIC_ASSERTION_FAILED[(cond)?1:-1])
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#endif
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#ifdef _MSC_VER
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# define longlong(x) x##i64
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#else
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# define longlong(x) x##ll
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#endif
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#ifndef FP_OFF
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# define FP_OFF(__p) ((uintptr_t)(__p))
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#endif
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#ifdef UNDERSCORES
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# define ASMSYM(x) "_" x
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#else
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# define ASMSYM(x) x
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#endif
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////////// Platform detection //////////
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#if defined __FreeBSD__ || defined __NetBSD__ || defined __OpenBSD__ || defined __bsdi__ || defined __DragonFly__
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# define EDUKE32_BSD
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#endif
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#ifdef __APPLE__
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# include <TargetConditionals.h>
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# if TARGET_OS_IPHONE || TARGET_IPHONE_SIMULATOR
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# define EDUKE32_IOS
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# else
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# define EDUKE32_OSX
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# endif
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#endif
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////////// Architecture detection //////////
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#if defined _LP64 || defined __LP64__ || defined __64BIT__ || _ADDR64 || defined _WIN64 || defined __arch64__ || \
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__WORDSIZE == 64 || (defined __sparc && defined __sparcv9) || defined __x86_64 || defined __amd64 || \
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defined __x86_64__ || defined __amd64__ || defined _M_X64 || defined _M_IA64 || defined __ia64 || defined __IA64__
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# define BITNESS64
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#endif
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#if defined(__linux)
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# include <endian.h>
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# if __BYTE_ORDER == __LITTLE_ENDIAN
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# define B_LITTLE_ENDIAN 1
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# define B_BIG_ENDIAN 0
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# elif __BYTE_ORDER == __BIG_ENDIAN
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# define B_LITTLE_ENDIAN 0
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# define B_BIG_ENDIAN 1
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# endif
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# define B_USE_COMPAT_SWAP 1
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#elif defined(GEKKO) || defined(__ANDROID__)
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# define B_LITTLE_ENDIAN 0
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# define B_BIG_ENDIAN 1
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# define B_USE_COMPAT_SWAP 1
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#elif defined(__OpenBSD__)
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# include <machine/endian.h>
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# if _BYTE_ORDER == _LITTLE_ENDIAN
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# define B_LITTLE_ENDIAN 1
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# define B_BIG_ENDIAN 0
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# elif _BYTE_ORDER == _BIG_ENDIAN
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# define B_LITTLE_ENDIAN 0
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# define B_BIG_ENDIAN 1
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# endif
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# define B_SWAP64(x) __swap64(x)
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# define B_SWAP32(x) __swap32(x)
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# define B_SWAP16(x) __swap16(x)
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#elif defined EDUKE32_BSD
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# include <sys/endian.h>
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# if _BYTE_ORDER == _LITTLE_ENDIAN
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# define B_LITTLE_ENDIAN 1
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# define B_BIG_ENDIAN 0
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# elif _BYTE_ORDER == _BIG_ENDIAN
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# define B_LITTLE_ENDIAN 0
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# define B_BIG_ENDIAN 1
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# endif
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# define B_SWAP64(x) __bswap64(x)
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# define B_SWAP32(x) __bswap32(x)
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# define B_SWAP16(x) __bswap16(x)
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#elif defined(__APPLE__)
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# if defined(__LITTLE_ENDIAN__)
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# define B_LITTLE_ENDIAN 1
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# define B_BIG_ENDIAN 0
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# elif defined(__BIG_ENDIAN__)
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# define B_LITTLE_ENDIAN 0
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# define B_BIG_ENDIAN 1
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# endif
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# include <libkern/OSByteOrder.h>
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# define B_SWAP64(x) OSSwapConstInt64(x)
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# define B_SWAP32(x) OSSwapConstInt32(x)
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# define B_SWAP16(x) OSSwapConstInt16(x)
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#elif defined(__BEOS__)
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# include <posix/endian.h>
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# if LITTLE_ENDIAN != 0
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# define B_LITTLE_ENDIAN 1
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# define B_BIG_ENDIAN 0
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# elif BIG_ENDIAN != 0
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# define B_LITTLE_ENDIAN 0
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# define B_BIG_ENDIAN 1
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# endif
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# define B_USE_COMPAT_SWAP 1
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#elif defined(__QNX__)
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# if defined __LITTLEENDIAN__
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# define B_LITTLE_ENDIAN 1
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# define B_BIG_ENDIAN 0
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# elif defined __BIGENDIAN__
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# define B_LITTLE_ENDIAN 0
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# define B_BIG_ENDIAN 1
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# endif
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# define B_USE_COMPAT_SWAP 1
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#elif defined(__sun)
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# if defined _LITTLE_ENDIAN
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# define B_LITTLE_ENDIAN 1
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# define B_BIG_ENDIAN 0
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# elif defined _BIG_ENDIAN
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# define B_LITTLE_ENDIAN 0
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# define B_BIG_ENDIAN 1
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# endif
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# define B_USE_COMPAT_SWAP 1
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#elif defined(_WIN32) || defined(SKYOS) || defined(__SYLLABLE__)
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# define B_LITTLE_ENDIAN 1
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# define B_BIG_ENDIAN 0
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# define B_USE_COMPAT_SWAP 1
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#endif
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#if !defined(B_LITTLE_ENDIAN) || !defined(B_BIG_ENDIAN)
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# error Unknown endianness
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#endif
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////////// Standard library headers //////////
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#undef __USE_MINGW_ANSI_STDIO // Workaround for MinGW-w64.
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#ifndef __STDC_FORMAT_MACROS
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# define __STDC_FORMAT_MACROS
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#endif
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#ifndef __STDC_LIMIT_MACROS
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# define __STDC_LIMIT_MACROS
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#endif
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#if !defined _MSC_VER || defined __cplusplus
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# include <stdint.h>
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# include <inttypes.h>
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#else
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# include "msvc/inttypes.h" // from http://code.google.com/p/msinttypes/
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#endif
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#include <limits.h>
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#include <stddef.h>
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#include <stdarg.h>
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#include <stdlib.h>
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#include <stdio.h>
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#include <string.h>
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#include <math.h>
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#include <float.h>
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#include <time.h>
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#include <ctype.h>
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#include <errno.h>
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#include <assert.h>
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////////// Platform headers //////////
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#if !defined __APPLE__ && (!defined EDUKE32_BSD || !__STDC__)
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# include <malloc.h>
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#endif
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#include <fcntl.h>
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#include <sys/types.h>
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#include <sys/stat.h>
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#if defined(_WIN32)
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# include <io.h>
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# include <direct.h>
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#else
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# include <unistd.h>
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#endif
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////////// External library headers //////////
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#ifdef EFENCE
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# include <efence.h>
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#elif defined DMALLOC
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# include <dmalloc.h>
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#endif
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////////// DEPRECATED: Standard library prefixing //////////
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#ifdef _MSC_VER
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typedef intptr_t ssize_t;
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#endif
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typedef size_t bsize_t;
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typedef ssize_t bssize_t;
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typedef FILE BFILE;
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#define BO_BINARY O_BINARY
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#define BO_TEXT O_TEXT
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#define BO_RDONLY O_RDONLY
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#define BO_WRONLY O_WRONLY
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#define BO_RDWR O_RDWR
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#define BO_APPEND O_APPEND
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#define BO_CREAT O_CREAT
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#define BO_TRUNC O_TRUNC
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#define BS_IRGRP S_IRGRP
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#define BS_IWGRP S_IWGRP
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#define BS_IEXEC S_IEXEC
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#define BS_IFIFO S_IFIFO
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#define BS_IFCHR S_IFCHR
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#define BS_IFBLK S_IFBLK
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#define BS_IFDIR S_IFDIR
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#define BS_IFREG S_IFREG
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#define BSEEK_SET SEEK_SET
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#define BSEEK_CUR SEEK_CUR
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#define BSEEK_END SEEK_END
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#define BMAX_PATH 256
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#define Bassert assert
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#define Brand rand
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#define Balloca alloca
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#define Bmalloc malloc
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#define Bcalloc calloc
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#define Brealloc realloc
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#define Bfree free
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#define Bopen open
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#define Bclose close
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#define Bwrite write
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#define Bread read
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#define Blseek lseek
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#define Bstat stat
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#define Bfstat fstat
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#define Bfileno fileno
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#define Bferror ferror
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#define Bfopen fopen
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#define Bfclose fclose
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#define Bfflush fflush
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#define Bfeof feof
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#define Bfgetc fgetc
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#define Brewind rewind
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#define Bfgets fgets
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#define Bfputc fputc
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#define Bfputs fputs
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#define Bfread fread
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#define Bfwrite fwrite
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#define Bfprintf fprintf
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#define Bfscanf fscanf
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#define Bfseek fseek
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#define Bftell ftell
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#define Bputs puts
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#define Bstrcpy strcpy
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#define Bstrncpy strncpy
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#define Bstrcmp strcmp
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#define Bstrncmp strncmp
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#define Bstrcat strcat
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#define Bstrncat strncat
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#define Bstrlen strlen
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#define Bstrchr strchr
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#define Bstrrchr strrchr
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#define Bstrtol strtol
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#define Bstrtoul strtoul
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#define Bstrtod strtod
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#define Bstrstr strstr
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#define Bislower islower
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#define Bisupper isupper
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#define Bisdigit isdigit
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#define Btoupper toupper
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#define Btolower tolower
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#define Bmemcpy memcpy
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#define Bmemmove memmove
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#define Bmemchr memchr
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#define Bmemset memset
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#define Bmemcmp memcmp
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#define Bscanf scanf
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#define Bprintf printf
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#define Bsscanf sscanf
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#define Bsprintf sprintf
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#define Bvfprintf vfprintf
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#define Bgetenv getenv
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#define Butime utime
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////////// Standard library wrappers //////////
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#ifdef __ANDROID__
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# define BS_IWRITE S_IWUSR
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# define BS_IREAD S_IRUSR
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#else
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# define BS_IWRITE S_IWRITE
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# define BS_IREAD S_IREAD
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#endif
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#if defined(__cplusplus) && defined(_MSC_VER)
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# define Bstrdup _strdup
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# define Bchdir _chdir
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# define Bgetcwd _getcwd
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#else
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# define Bstrdup strdup
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# define Bchdir chdir
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# define Bgetcwd getcwd
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#endif
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#if defined(__GNUC__)
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# define Btell(h) lseek(h,0,SEEK_CUR)
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#else
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# define Btell tell
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#endif
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#if defined(_MSC_VER)
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# define Bstrcasecmp _stricmp
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# define Bstrncasecmp _strnicmp
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#elif defined(__QNX__)
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# define Bstrcasecmp stricmp
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# define Bstrncasecmp strnicmp
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#else
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# define Bstrcasecmp strcasecmp
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# define Bstrncasecmp strncasecmp
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#endif
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#ifdef _MSC_VER
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# define Bsnprintf _snprintf
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# define Bvsnprintf _vsnprintf
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#else
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# define Bsnprintf snprintf
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# define Bvsnprintf vsnprintf
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#endif
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#define Btime() time(NULL)
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#if defined(_WIN32)
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# define Bmkdir(s,x) mkdir(s)
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#else
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# define Bmkdir mkdir
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#endif
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// XXX: different across 32- and 64-bit archs (e.g.
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// parsing the decimal representation of 0xffffffff,
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// 4294967295 -- long is signed, so strtol would
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// return LONG_MAX (== 0x7fffffff on 32-bit archs))
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#define Batoi(str) ((int32_t)strtol(str, NULL, 10))
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#define Batol(str) (strtol(str, NULL, 10))
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#define Batof(str) (strtod(str, NULL))
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#if defined BITNESS64 && (defined __SSE2__ || defined _MSC_VER)
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#include <emmintrin.h>
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static FORCE_INLINE int32_t Blrintf(const float x)
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|
{
|
|
__m128 xx = _mm_load_ss(&x);
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return _mm_cvtss_si32(xx);
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|
}
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|
#elif defined (_MSC_VER)
|
|
static FORCE_INLINE int32_t Blrintf(const float x)
|
|
{
|
|
int n;
|
|
__asm fld x;
|
|
__asm fistp n;
|
|
return n;
|
|
}
|
|
#else
|
|
#define Blrintf lrintf
|
|
#endif
|
|
|
|
#if defined(__arm__)
|
|
# define Bsqrt __builtin_sqrt
|
|
# define Bsqrtf __builtin_sqrtf
|
|
#else
|
|
# define Bsqrt sqrt
|
|
# define Bsqrtf sqrtf
|
|
#endif
|
|
|
|
// redefined for apple/ppc, which chokes on stderr when linking...
|
|
#if defined EDUKE32_OSX && defined __BIG_ENDIAN__
|
|
# define ERRprintf(fmt, ...) printf(fmt, ## __VA_ARGS__)
|
|
#else
|
|
# define ERRprintf(fmt, ...) fprintf(stderr, fmt, ## __VA_ARGS__)
|
|
#endif
|
|
|
|
#ifdef DEBUGGINGAIDS
|
|
# define Bexit(status) do { initprintf("exit(%d) at %s:%d in %s()\n", status, __FILE__, __LINE__, EDUKE32_FUNCTION); exit(status); } while (0)
|
|
#else
|
|
# define Bexit exit
|
|
#endif
|
|
|
|
|
|
////////// Standard library monkey patching //////////
|
|
|
|
#ifndef NULL
|
|
# define NULL ((void *)0)
|
|
#endif
|
|
|
|
#ifdef _MSC_VER
|
|
# define strtoll _strtoi64
|
|
#endif
|
|
|
|
#ifndef O_BINARY
|
|
# define O_BINARY 0
|
|
#endif
|
|
#ifndef O_TEXT
|
|
# define O_TEXT 0
|
|
#endif
|
|
|
|
#ifndef F_OK
|
|
# define F_OK 0
|
|
#endif
|
|
|
|
#ifdef GEKKO
|
|
# undef PRIdPTR
|
|
# define PRIdPTR "d"
|
|
# undef PRIxPTR
|
|
# define PRIxPTR "x"
|
|
# undef SCNx32
|
|
# define SCNx32 "x"
|
|
#endif
|
|
|
|
#if defined EDUKE32_OSX
|
|
# if !defined __x86_64__ && defined __GNUC__
|
|
// PK 20110617: is*() crashes for me in x86 code compiled from 64-bit, and gives link errors on ppc
|
|
// This hack patches all occurences.
|
|
# define isdigit(ch) ({ int32_t c__dontuse_=ch; c__dontuse_>='0' && c__dontuse_<='9'; })
|
|
# define isalpha(ch) ({ int32_t c__dontuse2_=ch; (c__dontuse2_>='A' && c__dontuse2_<='Z') || (c__dontuse2_>='a' && c__dontuse2_<='z'); })
|
|
# define isalnum(ch2) ({ int32_t c2__dontuse_=ch2; isalpha(c2__dontuse_) || isdigit(c2__dontuse_); })
|
|
# if defined __BIG_ENDIAN__
|
|
# define isspace(ch) ({ int32_t c__dontuse_=ch; (c__dontuse_==' ' || c__dontuse_=='\t' || c__dontuse_=='\n' || c__dontuse_=='\v' || c__dontuse_=='\f' || c__dontuse_=='\r'); })
|
|
# define isprint(ch) ({ int32_t c__dontuse_=ch; (c__dontuse_>=0x20 && c__dontuse_<0x7f); })
|
|
# endif
|
|
# endif
|
|
#endif
|
|
|
|
#ifdef __ANDROID__
|
|
void eduke32_exit_return(int) ATTRIBUTE((noreturn));
|
|
# define exit(x) eduke32_exit_return(x)
|
|
#endif
|
|
|
|
|
|
////////// Typedefs //////////
|
|
|
|
typedef struct {
|
|
int32_t x, y;
|
|
} vec2_t;
|
|
|
|
typedef struct {
|
|
uint32_t x, y;
|
|
} vec2u_t;
|
|
|
|
typedef struct {
|
|
int32_t x, y, z;
|
|
} vec3_t;
|
|
|
|
typedef struct {
|
|
float x, y;
|
|
} vec2f_t;
|
|
|
|
typedef struct {
|
|
union { float x; float d; };
|
|
union { float y; float u; };
|
|
union { float z; float v; };
|
|
} vec3f_t;
|
|
|
|
EDUKE32_STATIC_ASSERT(sizeof(vec3f_t) == sizeof(float) * 3);
|
|
|
|
typedef struct {
|
|
union { double x; double d; };
|
|
union { double y; double u; };
|
|
union { double z; double v; };
|
|
} vec3d_t;
|
|
|
|
EDUKE32_STATIC_ASSERT(sizeof(vec3d_t) == sizeof(double) * 3);
|
|
|
|
|
|
////////// Language tricks that depend on size_t //////////
|
|
|
|
#if defined _MSC_VER
|
|
# define ARRAY_SIZE(arr) _countof(arr)
|
|
#elif defined __cplusplus && (__cplusplus >= 201103L || __has_feature(cxx_constexpr))
|
|
template <typename T, size_t N>
|
|
static FORCE_INLINE constexpr size_t ARRAY_SIZE(T const (&)[N]) noexcept
|
|
{
|
|
return N;
|
|
}
|
|
#elif defined __cplusplus
|
|
struct bad_arg_to_ARRAY_SIZE
|
|
{
|
|
class Is_pointer; // incomplete
|
|
class Is_array {};
|
|
template <typename T>
|
|
static Is_pointer check_type(const T*, const T* const*);
|
|
static Is_array check_type(const void*, const void*);
|
|
};
|
|
# define ARRAY_SIZE(arr) ( \
|
|
0 * sizeof(reinterpret_cast<const ::bad_arg_to_ARRAY_SIZE*>(arr)) + \
|
|
0 * sizeof(::bad_arg_to_ARRAY_SIZE::check_type((arr), &(arr))) + \
|
|
sizeof(arr) / sizeof((arr)[0]) )
|
|
#else
|
|
# define ARRAY_SIZE(arr) (sizeof(arr) / sizeof((arr)[0]))
|
|
#endif
|
|
#define ARRAY_SSIZE(arr) (signed)ARRAY_SIZE(arr)
|
|
|
|
|
|
////////// Memory management //////////
|
|
|
|
#if !defined NO_ALIGNED_MALLOC
|
|
static FORCE_INLINE void *Baligned_alloc(const size_t alignment, const size_t size)
|
|
{
|
|
#ifdef _WIN32
|
|
void *ptr = _aligned_malloc(size, alignment);
|
|
#elif defined __APPLE__ || defined EDUKE32_BSD
|
|
void *ptr = NULL;
|
|
posix_memalign(&ptr, alignment, size);
|
|
#else
|
|
void *ptr = memalign(alignment, size);
|
|
#endif
|
|
|
|
return ptr;
|
|
}
|
|
#else
|
|
# define Baligned_alloc(alignment, size) Bmalloc(size)
|
|
#endif
|
|
|
|
#if defined _WIN32 && !defined NO_ALIGNED_MALLOC
|
|
# define Baligned_free _aligned_free
|
|
#else
|
|
# define Baligned_free Bfree
|
|
#endif
|
|
|
|
|
|
////////// Pointer management //////////
|
|
|
|
#define DO_FREE_AND_NULL(var) do { \
|
|
Bfree(var); (var) = NULL; \
|
|
} while (0)
|
|
|
|
#define ALIGNED_FREE_AND_NULL(var) do { \
|
|
Baligned_free(var); (var) = NULL; \
|
|
} while (0)
|
|
|
|
#define MAYBE_FCLOSE_AND_NULL(fileptr) do { \
|
|
if (fileptr) { Bfclose(fileptr); fileptr=NULL; } \
|
|
} while (0)
|
|
|
|
|
|
////////// Data serialization //////////
|
|
|
|
#if defined B_USE_COMPAT_SWAP
|
|
static FORCE_INLINE uint16_t B_SWAP16(uint16_t s) { return (s >> 8) | (s << 8); }
|
|
|
|
# if !defined NOASM && defined __i386__ && defined _MSC_VER
|
|
static FORCE_INLINE uint32_t B_SWAP32(uint32_t a)
|
|
{
|
|
_asm
|
|
{
|
|
mov eax, a
|
|
bswap eax
|
|
}
|
|
}
|
|
# elif !defined NOASM && defined __i386__ && defined __GNUC__
|
|
static FORCE_INLINE uint32_t B_SWAP32(uint32_t a)
|
|
{
|
|
__asm__ __volatile__("bswap %0" : "+r"(a) : : "cc");
|
|
return a;
|
|
}
|
|
# else
|
|
static FORCE_INLINE uint32_t B_SWAP32(uint32_t l)
|
|
{
|
|
return ((l >> 8) & 0xff00) | ((l & 0xff00) << 8) | (l << 24) | (l >> 24);
|
|
}
|
|
# endif
|
|
|
|
static FORCE_INLINE uint64_t B_SWAP64(uint64_t l)
|
|
{
|
|
return (l >> 56) | ((l >> 40) & 0xff00) | ((l >> 24) & 0xff0000) | ((l >> 8) & 0xff000000) |
|
|
((l & 255) << 56) | ((l & 0xff00) << 40) | ((l & 0xff0000) << 24) | ((l & 0xff000000) << 8);
|
|
}
|
|
#endif
|
|
|
|
// The purpose of these functions, as opposed to macros, is to prevent them from being used as lvalues.
|
|
static FORCE_INLINE uint16_t B_PASS16(uint16_t const x) { return x; }
|
|
static FORCE_INLINE uint32_t B_PASS32(uint32_t const x) { return x; }
|
|
static FORCE_INLINE uint64_t B_PASS64(uint64_t const x) { return x; }
|
|
|
|
#if B_LITTLE_ENDIAN == 1
|
|
# define B_LITTLE64(x) B_PASS64(x)
|
|
# define B_BIG64(x) B_SWAP64(x)
|
|
# define B_LITTLE32(x) B_PASS32(x)
|
|
# define B_BIG32(x) B_SWAP32(x)
|
|
# define B_LITTLE16(x) B_PASS16(x)
|
|
# define B_BIG16(x) B_SWAP16(x)
|
|
#elif B_BIG_ENDIAN == 1
|
|
# define B_LITTLE64(x) B_SWAP64(x)
|
|
# define B_BIG64(x) B_PASS64(x)
|
|
# define B_LITTLE32(x) B_SWAP32(x)
|
|
# define B_BIG32(x) B_PASS32(x)
|
|
# define B_LITTLE16(x) B_SWAP16(x)
|
|
# define B_BIG16(x) B_PASS16(x)
|
|
#endif
|
|
|
|
// TODO: Determine when, if ever, we should use the bit-shift-and-mask variants
|
|
// due to alignment issues or performance gains.
|
|
#if 1
|
|
static FORCE_INLINE void B_BUF16(void * const buf, uint16_t const x) { *(uint16_t *) buf = x; }
|
|
static FORCE_INLINE void B_BUF32(void * const buf, uint32_t const x) { *(uint32_t *) buf = x; }
|
|
static FORCE_INLINE void B_BUF64(void * const buf, uint64_t const x) { *(uint64_t *) buf = x; }
|
|
|
|
static FORCE_INLINE uint16_t B_UNBUF16(void const * const buf) { return *(uint16_t const *) buf; }
|
|
static FORCE_INLINE uint32_t B_UNBUF32(void const * const buf) { return *(uint32_t const *) buf; }
|
|
static FORCE_INLINE uint64_t B_UNBUF64(void const * const buf) { return *(uint64_t const *) buf; }
|
|
#else
|
|
static FORCE_INLINE void B_BUF16(void * const vbuf, uint16_t const x)
|
|
{
|
|
uint8_t * const buf = (uint8_t *) vbuf;
|
|
buf[0] = (x & 0x00FF);
|
|
buf[1] = (x & 0xFF00) >> 8;
|
|
}
|
|
static FORCE_INLINE void B_BUF32(void * const vbuf, uint32_t const x)
|
|
{
|
|
uint8_t * const buf = (uint8_t *) vbuf;
|
|
buf[0] = (x & 0x000000FF);
|
|
buf[1] = (x & 0x0000FF00) >> 8;
|
|
buf[2] = (x & 0x00FF0000) >> 16;
|
|
buf[3] = (x & 0xFF000000) >> 24;
|
|
}
|
|
# if 0
|
|
// i686-apple-darwin11-llvm-gcc-4.2 complains "integer constant is too large for 'long' type"
|
|
static FORCE_INLINE void B_BUF64(void * const vbuf, uint64_t const x)
|
|
{
|
|
uint8_t * const buf = (uint8_t *) vbuf;
|
|
buf[0] = (x & 0x00000000000000FF);
|
|
buf[1] = (x & 0x000000000000FF00) >> 8;
|
|
buf[2] = (x & 0x0000000000FF0000) >> 16;
|
|
buf[3] = (x & 0x00000000FF000000) >> 24;
|
|
buf[4] = (x & 0x000000FF00000000) >> 32;
|
|
buf[5] = (x & 0x0000FF0000000000) >> 40;
|
|
buf[6] = (x & 0x00FF000000000000) >> 48;
|
|
buf[7] = (x & 0xFF00000000000000) >> 56;
|
|
}
|
|
# endif
|
|
|
|
static FORCE_INLINE uint16_t B_UNBUF16(void const * const vbuf)
|
|
{
|
|
uint8_t const * const buf = (uint8_t const *) vbuf;
|
|
return (buf[1] << 8) | (buf[0]);
|
|
}
|
|
static FORCE_INLINE uint32_t B_UNBUF32(void const * const vbuf)
|
|
{
|
|
uint8_t const * const buf = (uint8_t const *) vbuf;
|
|
return (buf[3] << 24) | (buf[2] << 16) | (buf[1] << 8) | (buf[0]);
|
|
}
|
|
static FORCE_INLINE uint64_t B_UNBUF64(void const * const vbuf)
|
|
{
|
|
uint8_t const * const buf = (uint8_t const *) vbuf;
|
|
return ((uint64_t)buf[7] << 56) | ((uint64_t)buf[6] << 48) | ((uint64_t)buf[5] << 40) |
|
|
((uint64_t)buf[4] << 32) | (buf[3] << 24) | (buf[2] << 16) | (buf[1] << 8) | (buf[0]);
|
|
}
|
|
#endif
|
|
|
|
|
|
////////// Abstract data operations //////////
|
|
|
|
#ifndef min
|
|
# define min(a, b) (((a) < (b)) ? (a) : (b))
|
|
#endif
|
|
#ifndef max
|
|
# define max(a, b) (((a) > (b)) ? (a) : (b))
|
|
#endif
|
|
|
|
#define CLAMP_DECL static FORCE_INLINE WARN_UNUSED_RESULT
|
|
// Clamp <in> to [<min>..<max>]. The case in <= min is handled first.
|
|
CLAMP_DECL int32_t clamp(int32_t in, int32_t min, int32_t max) { return in <= min ? min : (in >= max ? max : in); }
|
|
CLAMP_DECL float fclamp(float in, float min, float max) { return in <= min ? min : (in >= max ? max : in); }
|
|
// Clamp <in> to [<min>..<max>]. The case in >= max is handled first.
|
|
CLAMP_DECL int32_t clamp2(int32_t in, int32_t min, int32_t max) { return in >= max ? max : (in <= min ? min : in); }
|
|
CLAMP_DECL float fclamp2(float in, float min, float max) { return in >= max ? max : (in <= min ? min : in); }
|
|
|
|
|
|
////////// Utility functions //////////
|
|
|
|
#if RAND_MAX == 32767
|
|
static FORCE_INLINE uint16_t system_15bit_rand(void) { return (uint16_t)rand(); }
|
|
#else // RAND_MAX > 32767, assumed to be of the form 2^k - 1
|
|
static FORCE_INLINE uint16_t system_15bit_rand(void) { return ((uint16_t)rand())&0x7fff; }
|
|
#endif
|
|
|
|
// Copy min(strlen(src)+1, n) characters into dst, always terminate with a NUL.
|
|
static FORCE_INLINE char *Bstrncpyz(char *dst, const char *src, bsize_t n)
|
|
{
|
|
Bstrncpy(dst, src, n);
|
|
dst[n-1] = 0;
|
|
return dst;
|
|
}
|
|
|
|
// Append extension when <outbuf> contains no dot.
|
|
// <ext> can be like ".mhk" or like "_crash.map", no need to start with a dot.
|
|
// The ugly name is deliberate: we should be checking the sizes of all buffers!
|
|
static inline void append_ext_UNSAFE(char *outbuf, const char *ext)
|
|
{
|
|
char *p = Bstrrchr(outbuf,'.');
|
|
|
|
if (!p)
|
|
Bstrcat(outbuf, ext);
|
|
else
|
|
Bstrcpy(p, ext);
|
|
}
|
|
|
|
|
|
/* Begin dependence on compat.o object. */
|
|
|
|
|
|
#ifdef __cplusplus
|
|
extern "C" {
|
|
#endif
|
|
|
|
|
|
////////// Directory enumeration //////////
|
|
|
|
struct Bdirent
|
|
{
|
|
uint16_t namlen;
|
|
char *name;
|
|
uint32_t mode;
|
|
uint32_t size;
|
|
uint32_t mtime;
|
|
};
|
|
|
|
typedef void BDIR;
|
|
|
|
BDIR *Bopendir(const char *name);
|
|
struct Bdirent *Breaddir(BDIR *dir);
|
|
int32_t Bclosedir(BDIR *dir);
|
|
|
|
|
|
////////// Paths //////////
|
|
|
|
char *Bgethomedir(void);
|
|
char *Bgetappdir(void);
|
|
|
|
int32_t Bcorrectfilename(char *filename, int32_t removefn);
|
|
int32_t Bcanonicalisefilename(char *filename, int32_t removefn);
|
|
|
|
char *Bgetsystemdrives(void);
|
|
|
|
|
|
////////// String manipulation //////////
|
|
|
|
char *Bstrtoken(char *s, const char *delim, char **ptrptr, int chop);
|
|
char *Bstrtolower(char *str);
|
|
|
|
#define Bwildmatch wildmatch
|
|
|
|
#ifdef _WIN32
|
|
# define Bstrlwr strlwr
|
|
# define Bstrupr strupr
|
|
#else
|
|
char *Bstrlwr(char *);
|
|
char *Bstrupr(char *);
|
|
#endif
|
|
|
|
|
|
////////// Miscellaneous //////////
|
|
|
|
int32_t Bfilelength(int32_t fd);
|
|
|
|
uint32_t Bgetsysmemsize(void);
|
|
|
|
|
|
////////// PANICKING ALLOCATION WRAPPERS //////////
|
|
|
|
#ifdef DEBUGGINGAIDS
|
|
extern void xalloc_set_location(int32_t line, const char *file, const char *func);
|
|
#endif
|
|
void set_memerr_handler(void (*handlerfunc)(int32_t, const char *, const char *));
|
|
void handle_memerr(void);
|
|
|
|
static FORCE_INLINE char *xstrdup(const char *s)
|
|
{
|
|
char *ptr = Bstrdup(s);
|
|
if (ptr == NULL) handle_memerr();
|
|
return ptr;
|
|
}
|
|
|
|
static FORCE_INLINE void *xmalloc(const bsize_t size)
|
|
{
|
|
void *ptr = Bmalloc(size);
|
|
if (ptr == NULL) handle_memerr();
|
|
return ptr;
|
|
}
|
|
|
|
static FORCE_INLINE void *xcalloc(const bsize_t nmemb, const bsize_t size)
|
|
{
|
|
void *ptr = Bcalloc(nmemb, size);
|
|
if (ptr == NULL) handle_memerr();
|
|
return ptr;
|
|
}
|
|
|
|
static FORCE_INLINE void *xrealloc(void * const ptr, const bsize_t size)
|
|
{
|
|
void *newptr = Brealloc(ptr, size);
|
|
|
|
// According to the C Standard,
|
|
// - ptr == NULL makes realloc() behave like malloc()
|
|
// - size == 0 make it behave like free() if ptr != NULL
|
|
// Since we want to catch an out-of-mem in the first case, this leaves:
|
|
if (newptr == NULL && size != 0)
|
|
handle_memerr();
|
|
|
|
return newptr;
|
|
}
|
|
|
|
#if !defined NO_ALIGNED_MALLOC
|
|
static FORCE_INLINE void *xaligned_alloc(const bsize_t alignment, const bsize_t size)
|
|
{
|
|
void *ptr = Baligned_alloc(alignment, size);
|
|
if (ptr == NULL) handle_memerr();
|
|
return ptr;
|
|
}
|
|
#else
|
|
# define xaligned_alloc(alignment, size) xmalloc(size)
|
|
#endif
|
|
|
|
#ifdef DEBUGGINGAIDS
|
|
# define EDUKE32_PRE_XALLLOC xalloc_set_location(__LINE__, __FILE__, EDUKE32_FUNCTION)
|
|
# define Xstrdup(s) (EDUKE32_PRE_XALLLOC, xstrdup(s))
|
|
# define Xmalloc(size) (EDUKE32_PRE_XALLLOC, xmalloc(size))
|
|
# define Xcalloc(nmemb, size) (EDUKE32_PRE_XALLLOC, xcalloc(nmemb, size))
|
|
# define Xrealloc(ptr, size) (EDUKE32_PRE_XALLLOC, xrealloc(ptr, size))
|
|
# define Xaligned_alloc(alignment, size) (EDUKE32_PRE_XALLLOC, xaligned_alloc(alignment, size))
|
|
#else
|
|
# define Xstrdup xstrdup
|
|
# define Xmalloc xmalloc
|
|
# define Xcalloc xcalloc
|
|
# define Xrealloc xrealloc
|
|
# define Xaligned_alloc xaligned_alloc
|
|
#endif
|
|
|
|
#ifdef __cplusplus
|
|
}
|
|
#endif
|
|
|
|
|
|
////////// More utility functions //////////
|
|
|
|
static inline void maybe_grow_buffer(char ** const buffer, int32_t * const buffersize, int32_t const newsize)
|
|
{
|
|
if (newsize > *buffersize)
|
|
{
|
|
*buffer = (char *)Xrealloc(*buffer, newsize);
|
|
*buffersize = newsize;
|
|
}
|
|
}
|
|
|
|
|
|
////////// Inlined external libraries //////////
|
|
|
|
#include "libdivide.h"
|
|
|
|
|
|
/* End dependence on compat.o object. */
|
|
|
|
|
|
////////// EDuke32-specific features //////////
|
|
|
|
#ifndef TRUE
|
|
# define TRUE 1
|
|
#endif
|
|
|
|
#ifndef FALSE
|
|
# define FALSE 0
|
|
#endif
|
|
|
|
#define WITHKPLIB
|
|
|
|
#if defined __ANDROID__ || defined EDUKE32_IOS
|
|
# define EDUKE32_TOUCH_DEVICES
|
|
# define EDUKE32_GLES
|
|
#endif
|
|
|
|
#if DEBUGGINGAIDS>=2
|
|
# define DEBUG_MAIN_ARRAYS
|
|
#endif
|
|
|
|
#if !defined DEBUG_MAIN_ARRAYS
|
|
# define HAVE_CLIPSHAPE_FEATURE
|
|
#endif
|
|
|
|
#endif // compat_h_
|