Globals.h

   1 // Copyright (c) 2012- PPSSPP Project.
   2
   3 // This program is free software: you can redistribute it and/or modify
   4 // it under the terms of the GNU General Public License as published by
   5 // the Free Software Foundation, version 2.0 or later versions.
   6
   7 // This program is distributed in the hope that it will be useful,
   8 // but WITHOUT ANY WARRANTY; without even the implied warranty of
   9 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  10 // GNU General Public License 2.0 for more details.
  11
  12 // A copy of the GPL 2.0 should have been included with the program.
  13 // If not, see http://www.gnu.org/licenses/
  14
  15 // Official git repository and contact information can be found at
  16 // https://github.com/hrydgard/ppsspp and http://www.ppsspp.org/.
  17
  18 #pragma once
  19
  20 #include <cstdio>
  21 #include <cstring>
  22 #include <vector>
  23 #include <string>
  24 #include <utility>
  25
  26 #include "Log.h"
  27
  28 #include "CommonTypes.h"
  29
  30 #define IS_LITTLE_ENDIAN (*(const u16 *)"\0\xff" >= 0x100)
  31 #define IS_BIG_ENDIAN (*(const u16 *)"\0\xff" < 0x100)
  32
  33 static inline u8 clamp_u8(int i) {
  34 #ifdef ARM
  35         asm("usat %0, #8, %1" : "=r"(i) : "r"(i));
  36 #else
  37         if (i > 255)
  38                 return 255;
  39         if (i < 0)
  40                 return 0;
  41 #endif
  42         return i;
  43 }
  44
  45 static inline s16 clamp_s16(int i) {
  46 #ifdef ARM
  47         asm("ssat %0, #16, %1" : "=r"(i) : "r"(i));
  48 #else
  49         if (i > 32767)
  50                 return 32767;
  51         if (i < -32768)
  52                 return -32768;
  53 #endif
  54         return i;
  55 }
  56
  57 #ifndef DISALLOW_COPY_AND_ASSIGN
  58 #define DISALLOW_COPY_AND_ASSIGN(t) \
  59  private: \
  60  t(const t &other);  \
  61  void operator =(const t &other);
  62 #endif