mirror of https://github.com/PCSX2/pcsx2.git
316 lines
11 KiB
C
316 lines
11 KiB
C
/* PCSX2 - PS2 Emulator for PCs
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* Copyright (C) 2002-2010 PCSX2 Dev Team
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*
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* PCSX2 is free software: you can redistribute it and/or modify it under the terms
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* of the GNU Lesser General Public License as published by the Free Software Found-
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* ation, either version 3 of the License, or (at your option) any later version.
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*
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* PCSX2 is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
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* without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
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* PURPOSE. See the GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along with PCSX2.
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* If not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef __PCSX2DEFS_H__
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#define __PCSX2DEFS_H__
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// Indicate that this is the wx port to the plugins.
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#define WX_PCSX2
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// some distributions are lower case
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#if defined (__linux__) || defined(__CYGWIN__)
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#if !defined(__LINUX__)
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# define __LINUX__
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#endif
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#endif
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#include "Pcsx2Types.h"
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#ifdef _MSC_VER
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# include <intrin.h>
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extern "C" unsigned __int64 __xgetbv(int);
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#else
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# include <intrin_x86.h>
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#endif
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// Renamed ARRAYSIZE to ArraySize -- looks nice and gets rid of Windows.h conflicts (air)
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// Notes: I'd have used ARRAY_SIZE instead but ran into cross-platform lib conflicts with
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// that as well. >_<
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#ifndef ArraySize
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# define ArraySize(x) (sizeof(x)/sizeof((x)[0]))
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#endif
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// --------------------------------------------------------------------------------------
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// jASSUME - give hints to the optimizer [obsolete, use pxAssume() instead]
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// --------------------------------------------------------------------------------------
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// This is primarily useful for the default case switch optimizer, which enables VC to
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// generate more compact switches.
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//
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// Note: When using the PCSX2 Utilities library, this is deprecated. Use pxAssert instead,
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// which itself optimizes to an __assume() hint in release mode builds.
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//
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#ifndef jASSUME
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# ifdef NDEBUG
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# define jBREAKPOINT() ((void) 0)
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# ifdef _MSC_VER
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# define jASSUME(exp) (__assume(exp))
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# else
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# define jASSUME(exp) ((void) sizeof(exp))
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# endif
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# else
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# define jBREAKPOINT() __debugbreak();
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# ifdef wxASSERT
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# define jASSUME(exp) wxASSERT(exp)
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# else
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# define jASSUME(exp) do { if(exp) ; else jBREAKPOINT(); } while(0);
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# endif
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# endif
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#endif
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// --------------------------------------------------------------------------------------
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// C_ASSERT
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// --------------------------------------------------------------------------------------
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// compile-time assertion; usable at static variable define level.
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// (typically used to confirm the correct sizeof() for struct types where size
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// restaints must be enforced).
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//
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#ifndef C_ASSERT
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# define C_ASSERT(e) typedef char __C_ASSERT__[(e)?1:-1]
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#endif
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// --------------------------------------------------------------------------------------
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// Dev / Debug conditionals - Consts for using if() statements instead of uglier #ifdef.
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// --------------------------------------------------------------------------------------
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// Note: Using if() optimizes nicely in Devel and Release builds, but will generate extra
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// code overhead in debug builds (since debug neither inlines, nor optimizes out const-
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// level conditionals). Normally not a concern, but if you stick if( IsDevbuild ) in
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// some tight loops it will likely make debug builds unusably slow.
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//
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#ifdef __cplusplus
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# ifdef PCSX2_DEVBUILD
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static const bool IsDevBuild = true;
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# else
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static const bool IsDevBuild = false;
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# endif
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# ifdef PCSX2_DEBUG
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static const bool IsDebugBuild = true;
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# else
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static const bool IsDebugBuild = false;
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# endif
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#else
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# ifdef PCSX2_DEVBUILD
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static const u8 IsDevBuild = 1;
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# else
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static const u8 IsDevBuild = 0;
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# endif
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# ifdef PCSX2_DEBUG
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static const u8 IsDebugBuild = 1;
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# else
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static const u8 IsDebugBuild = 0;
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# endif
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#endif
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#ifdef PCSX2_DEBUG
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# define pxDebugCode(code) code
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#else
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# define pxDebugCode(code)
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#endif
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#ifdef PCSX2_DEVBUILD
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# define pxDevelCode(code) code
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#else
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# define pxDevelCode(code)
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#endif
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#if !defined(PCSX2_DEBUG) && !defined(PCSX2_DEVEL)
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# define pxReleaseCode(code)
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#else
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# define pxReleaseCode(code) code
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#endif
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// --------------------------------------------------------------------------------------
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// __aligned / __aligned16 / __pagealigned
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// --------------------------------------------------------------------------------------
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// GCC Warning! The GCC linker (LD) typically fails to assure alignment of class members.
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// If you want alignment to be assured, the variable must either be a member of a struct
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// or a static global.
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//
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// __pagealigned is equivalent to __aligned(0x1000), and is used to align a dynarec code
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// buffer to a page boundary (allows the use of execution-enabled mprotect).
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//
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// General Performance Warning: Any function that specifies alignment on a local (stack)
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// variable will have to align the stack frame on enter, and restore it on exit (adds
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// overhead). Furthermore, compilers cannot inline functions that have aligned local
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// vars. So use local var alignment with much caution.
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//
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// Defines the memory page size for the target platform at compilation. All supported platforms
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// (which means Intel only right now) have a 4k granularity.
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#define PCSX2_PAGESIZE 0x1000
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static const int __pagesize = PCSX2_PAGESIZE;
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// --------------------------------------------------------------------------------------
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// Structure Packing (__packed)
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// --------------------------------------------------------------------------------------
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// Current Method:
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// Use a combination of embedded compiler-specific #pragma mess in conjunction with a
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// __packed macro. The former appeases the MSVC gods, the latter appeases the GCC gods.
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// The end result looks something like this:
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//
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// #ifdef _MSC_VER
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// # pragma pack(1)
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// #endif
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//
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// struct SomeKindaFail {
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// u8 neat;
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// u32 unaligned32;
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// } __packed;
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//
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// MSVC 2008 and better support __pragma, however there's no way to support that in
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// a way that's backwards compatible to VS 2005, without still including the old-style
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// #pragma mess. So there's really not much point (yet) in using it. I've included macros
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// that utilize __pragma (commented out below) which can be deployed at a time when we
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// are ok with the idea of completely breaking backwards compat with VC2005/prior.
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//
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// --------------------------------------------------------------------------------------
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// Microsoft Visual Studio
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// --------------------------------------------------------------------------------------
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#ifdef _MSC_VER
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// Using these breaks compat with VC2005; so we're not using it yet.
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//# define __pack_begin __pragma(pack(1))
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//# define __pack_end __pragma(pack())
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// This is the 2005/earlier compatible packing define, which must be used in conjunction
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// with #ifdef _MSC_VER/#pragma pack() directives (ugly).
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# define __packed
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# define __aligned(alig) __declspec(align(alig))
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# define __aligned16 __declspec(align(16))
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# define __aligned32 __declspec(align(32))
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# define __pagealigned __declspec(align(PCSX2_PAGESIZE))
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// Deprecated; use __align instead.
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# define PCSX2_ALIGNED(alig,x) __declspec(align(alig)) x
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# define PCSX2_ALIGNED_EXTERN(alig,x) extern __declspec(align(alig)) x
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# define PCSX2_ALIGNED16(x) __declspec(align(16)) x
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# define PCSX2_ALIGNED16_EXTERN(x) extern __declspec(align(16)) x
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# define __naked __declspec(naked)
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# define __noinline __declspec(noinline)
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# define __threadlocal __declspec(thread)
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// Don't know if there are Visual C++ equivalents of these.
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# define __hot
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# define __cold
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# define likely(x) (!!(x))
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# define unlikely(x) (!!(x))
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# define CALLBACK __stdcall
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#else
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// --------------------------------------------------------------------------------------
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// GCC / Intel Compilers Section
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// --------------------------------------------------------------------------------------
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# define __packed __attribute__((packed))
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# define __aligned(alig) __attribute__((aligned(alig)))
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# define __aligned16 __attribute__((aligned(16)))
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# define __aligned32 __attribute__((aligned(32)))
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# define __pagealigned __attribute__((aligned(PCSX2_PAGESIZE)))
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// Deprecated; use __align instead.
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# define PCSX2_ALIGNED(alig,x) x __attribute((aligned(alig)))
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# define PCSX2_ALIGNED16(x) x __attribute((aligned(16)))
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# define PCSX2_ALIGNED_EXTERN(alig,x) extern x __attribute((aligned(alig)))
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# define PCSX2_ALIGNED16_EXTERN(x) extern x __attribute((aligned(16)))
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# define __naked // GCC lacks the naked specifier
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# define __assume(cond) ((void)0) // GCC has no equivalent for __assume
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# define CALLBACK __attribute__((stdcall))
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// Inlining note: GCC needs ((unused)) attributes defined on inlined functions to suppress
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// warnings when a static inlined function isn't used in the scope of a single file (which
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// happens *by design* like all the friggen time >_<)
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# define __fastcall __attribute__((fastcall))
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# define _inline __inline__ __attribute__((unused))
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# ifdef NDEBUG
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# define __forceinline __attribute__((always_inline,unused))
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# else
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# define __forceinline __attribute__((unused))
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# endif
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# define __noinline __attribute__((noinline))
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# define __hot __attribute__((hot))
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# define __cold __attribute__((cold))
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# define __threadlocal __thread
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# define likely(x) __builtin_expect(!!(x), 1)
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# define unlikely(x) __builtin_expect(!!(x), 0)
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#endif
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// --------------------------------------------------------------------------------------
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// GNU C/C++ Specific Defines
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// --------------------------------------------------------------------------------------
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#ifdef __GNUC__
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// GCC 4.4.0 is a bit nutty, as compilers go. it gets a define to itself.
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# define GCC_VERSION ( __GNUC__ * 10000 \
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+ __GNUC_MINOR__ * 100 \
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+ __GNUC_PATCHLEVEL__)
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// Test for GCC > 4.4.0; Should be adjusted when new versions come out
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# if GCC_VERSION >= 40400
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# define THE_UNBEARABLE_LIGHTNESS_OF_BEING_GCC_4_4_0
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# define __nooptimization __attribute__((optimize("O0")))
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# endif
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// This theoretically unoptimizes. Not having much luck so far.
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/*
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# ifdef THE_UNBEARABLE_LIGHTNESS_OF_BEING_GCC_4_4_0
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# pragma GCC optimize ("O0")
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# endif
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# ifdef THE_UNBEARABLE_LIGHTNESS_OF_BEING_GCC_4_4_0
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# pragma GCC reset_options
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# endif
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*/
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#endif // end GCC-specific section.
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#ifndef THE_UNBEARABLE_LIGHTNESS_OF_BEING_GCC_4_4_0
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# define __nooptimization // Pretty sure this is obsolete now, since we fixed __asm contraints and stuff. --air
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#endif
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// --------------------------------------------------------------------------------------
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// __releaseinline / __ri -- a forceinline macro that is enabled for RELEASE/PUBLIC builds ONLY.
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// --------------------------------------------------------------------------------------
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// This is useful because forceinline can make certain types of debugging problematic since
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// functions that look like they should be called won't breakpoint since their code is
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// inlined, and it can make stack traces confusing or near useless.
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//
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// Use __releaseinline for things which are generally large functions where trace debugging
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// from Devel builds is likely useful; but which should be inlined in an optimized Release
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// environment.
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//
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#ifdef PCSX2_DEVBUILD
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# define __releaseinline
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#else
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# define __releaseinline __forceinline
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#endif
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#define __ri __releaseinline
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#define __fi __forceinline
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#define __fc __fastcall
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#define elif else if
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#endif
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