annotate src/atomic/qnx/SDL_atomic.c @ 4946:acdd88ebd0a0

Missing math library for testgesture
author Sam Lantinga <slouken@libsdl.org>
date Sat, 01 Jan 2011 20:44:38 -0800
parents f7b03b6838cb
children
rev   line source
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1 /*
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2 SDL - Simple DirectMedia Layer
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3 Copyright (C) 1997-2010 Sam Lantinga
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4
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5 This library is free software; you can redistribute it and/or
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6 modify it under the terms of the GNU Lesser General Public
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7 License as published by the Free Software Foundation; either
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8 version 2.1 of the License, or (at your option) any later version.
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9
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10 This library is distributed in the hope that it will be useful,
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11 but WITHOUT ANY WARRANTY; without even the implied warranty of
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12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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13 Lesser General Public License for more details.
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14
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15 You should have received a copy of the GNU Lesser General Public
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16 License along with this library; if not, write to the Free Software
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17 Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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18
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19 Sam Lantinga
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20 slouken@libsdl.org
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21
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22 QNX native atomic operations
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23 Copyright (C) 2009 Mike Gorchak
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24 (mike@malva.ua, lestat@i.com.ua)
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25 */
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26
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27 #include "SDL_stdinc.h"
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28 #include "SDL_atomic.h"
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29 #include "SDL_error.h"
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30
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31 #include <atomic.h>
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32
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33 /* SMP Exchange for PPC platform */
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34 #ifdef __PPC__
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35 #include <ppc/smpxchg.h>
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36 #endif /* __PPC__ */
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37
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38 /* SMP Exchange for ARM platform */
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39 #ifdef __ARM__
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40 #include <arm/smpxchg.h>
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41 #endif /* __ARM__ */
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42
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43 /* SMP Exchange for MIPS platform */
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44 #if defined (__MIPSEB__) || defined(__MIPSEL__)
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45 #include <mips/smpxchg.h>
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46 #endif /* __MIPSEB__ || __MIPSEL__ */
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47
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48 /* SMP Exchange for SH platform */
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49 #ifdef __SH__
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50 #include <sh/smpxchg.h>
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51 #endif /* __SH__ */
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52
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53 /* SMP Exchange for x86 platform */
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54 #ifdef __X86__
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55 #include <x86/smpxchg.h>
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56 #endif /* __X86__ */
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57
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58 /*
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59 This file provides 32, and 64 bit atomic operations. If the
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60 operations are provided by the native hardware and operating system
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61 they are used. If they are not then the operations are emulated
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62 using the SDL spin lock operations. If spin lock can not be
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63 implemented then these functions must fail.
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64 */
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65
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66 void
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67 SDL_AtomicLock(SDL_SpinLock *lock)
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68 {
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69 unsigned volatile* l = (unsigned volatile*)lock;
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70 Uint32 oldval = 0;
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71 Uint32 newval = 1;
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72
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73 oldval = _smp_xchg(l, newval);
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74 while(1 == oldval)
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75 {
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76 oldval = _smp_xchg(l, newval);
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77 }
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78 }
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79
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80 void
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81 SDL_AtomicUnlock(SDL_SpinLock *lock)
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82 {
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83 unsigned volatile* l = (unsigned volatile*)lock;
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84 Uint32 newval = 0;
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85
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86 _smp_xchg(l, newval);
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87 }
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88
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89 /*
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90 QNX 6.4.1 supports only 32 bit atomic access
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91 */
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92
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93 #undef nativeTestThenSet32
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94 #define nativeClear32
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95 #define nativeFetchThenIncrement32
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96 #define nativeFetchThenDecrement32
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97 #define nativeFetchThenAdd32
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98 #define nativeFetchThenSubtract32
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99 #define nativeIncrementThenFetch32
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100 #define nativeDecrementThenFetch32
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101 #define nativeAddThenFetch32
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102 #define nativeSubtractThenFetch32
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103
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104 #undef nativeTestThenSet64
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105 #undef nativeClear64
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106 #undef nativeFetchThenIncrement64
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107 #undef nativeFetchThenDecrement64
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108 #undef nativeFetchThenAdd64
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109 #undef nativeFetchThenSubtract64
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110 #undef nativeIncrementThenFetch64
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111 #undef nativeDecrementThenFetch64
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112 #undef nativeAddThenFetch64
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113 #undef nativeSubtractThenFetch64
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114
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115 /*
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116 If any of the operations are not provided then we must emulate some
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117 of them. That means we need a nice implementation of spin locks
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118 that avoids the "one big lock" problem. We use a vector of spin
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119 locks and pick which one to use based on the address of the operand
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120 of the function.
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121
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122 To generate the index of the lock we first shift by 3 bits to get
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123 rid on the zero bits that result from 32 and 64 bit allignment of
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124 data. We then mask off all but 5 bits and use those 5 bits as an
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125 index into the table.
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126
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127 Picking the lock this way insures that accesses to the same data at
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128 the same time will go to the same lock. OTOH, accesses to different
70bfe3337f8a Support for the atomic operations for ARM, PPC, MIPS, SH, X86 platforms has been added.
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129 data have only a 1/32 chance of hitting the same lock. That should
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130 pretty much eliminate the chances of several atomic operations on
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131 different data from waiting on the same "big lock". If it isn't
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132 then the table of locks can be expanded to a new size so long as
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133 the new size is a power of two.
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134 */
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135
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136 static SDL_SpinLock locks[32] = {
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137 0, 0, 0, 0, 0, 0, 0, 0,
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138 0, 0, 0, 0, 0, 0, 0, 0,
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139 0, 0, 0, 0, 0, 0, 0, 0,
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140 0, 0, 0, 0, 0, 0, 0, 0,
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141 };
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142
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143 static __inline__ void
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144 privateWaitLock(volatile void *ptr)
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145 {
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146 #if SIZEOF_VOIDP == 4
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147 Uint32 index = ((((Uint32)ptr) >> 3) & 0x1f);
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148 #elif SIZEOF_VOIDP == 8
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149 Uint64 index = ((((Uint64)ptr) >> 3) & 0x1f);
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150 #endif /* SIZEOF_VOIDP */
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151
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152 SDL_AtomicLock(&locks[index]);
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153 }
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154
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155 static __inline__ void
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156 privateUnlock(volatile void *ptr)
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157 {
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158 #if SIZEOF_VOIDP == 4
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159 Uint32 index = ((((Uint32)ptr) >> 3) & 0x1f);
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160 #elif SIZEOF_VOIDP == 8
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161 Uint64 index = ((((Uint64)ptr) >> 3) & 0x1f);
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162 #endif /* SIZEOF_VOIDP */
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163
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164 SDL_AtomicUnlock(&locks[index]);
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165 }
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166
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167 /* 32 bit atomic operations */
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168
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169 SDL_bool
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170 SDL_AtomicTestThenSet32(volatile Uint32 * ptr)
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171 {
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172 #ifdef nativeTestThenSet32
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173 #else
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174 SDL_bool result = SDL_FALSE;
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175
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176 privateWaitLock(ptr);
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177 result = (*ptr == 0);
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178 if (result)
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179 {
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180 *ptr = 1;
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181 }
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182 privateUnlock(ptr);
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183
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184 return result;
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185 #endif /* nativeTestThenSet32 */
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186 }
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187
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188 void
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189 SDL_AtomicClear32(volatile Uint32 * ptr)
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190 {
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191 #ifdef nativeClear32
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192 atomic_clr(ptr, 0xFFFFFFFF);
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193 #else
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194 privateWaitLock(ptr);
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195 *ptr = 0;
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196 privateUnlock(ptr);
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197
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198 return;
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199 #endif /* nativeClear32 */
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200 }
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201
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202 Uint32
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203 SDL_AtomicFetchThenIncrement32(volatile Uint32 * ptr)
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204 {
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205 #ifdef nativeFetchThenIncrement32
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206 return atomic_add_value(ptr, 0x00000001);
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207 #else
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208 Uint32 tmp = 0;
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209
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210 privateWaitLock(ptr);
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211 tmp = *ptr;
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212 (*ptr)+= 1;
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213 privateUnlock(ptr);
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214
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215 return tmp;
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216 #endif /* nativeFetchThenIncrement32 */
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217 }
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218
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219 Uint32
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220 SDL_AtomicFetchThenDecrement32(volatile Uint32 * ptr)
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221 {
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222 #ifdef nativeFetchThenDecrement32
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223 return atomic_sub_value(ptr, 0x00000001);
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224 #else
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225 Uint32 tmp = 0;
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226
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227 privateWaitLock(ptr);
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228 tmp = *ptr;
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229 (*ptr) -= 1;
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230 privateUnlock(ptr);
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231
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232 return tmp;
3364
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233 #endif /* nativeFetchThenDecrement32 */
3217
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234 }
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parents:
diff changeset
235
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236 Uint32
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237 SDL_AtomicFetchThenAdd32(volatile Uint32 * ptr, Uint32 value)
3217
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238 {
3364
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239 #ifdef nativeFetchThenAdd32
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240 return atomic_add_value(ptr, value);
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diff changeset
241 #else
3364
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242 Uint32 tmp = 0;
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243
3364
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244 privateWaitLock(ptr);
3217
26ce0b98f2fb Support for native and emulated atomic operations has been added.
Mike Gorchak <lestat@i.com.ua>
parents:
diff changeset
245 tmp = *ptr;
26ce0b98f2fb Support for native and emulated atomic operations has been added.
Mike Gorchak <lestat@i.com.ua>
parents:
diff changeset
246 (*ptr)+= value;
3364
70bfe3337f8a Support for the atomic operations for ARM, PPC, MIPS, SH, X86 platforms has been added.
Mike Gorchak <lestat@i.com.ua>
parents: 3217
diff changeset
247 privateUnlock(ptr);
3217
26ce0b98f2fb Support for native and emulated atomic operations has been added.
Mike Gorchak <lestat@i.com.ua>
parents:
diff changeset
248
26ce0b98f2fb Support for native and emulated atomic operations has been added.
Mike Gorchak <lestat@i.com.ua>
parents:
diff changeset
249 return tmp;
3364
70bfe3337f8a Support for the atomic operations for ARM, PPC, MIPS, SH, X86 platforms has been added.
Mike Gorchak <lestat@i.com.ua>
parents: 3217
diff changeset
250 #endif /* nativeFetchThenAdd32 */
3217
26ce0b98f2fb Support for native and emulated atomic operations has been added.
Mike Gorchak <lestat@i.com.ua>
parents:
diff changeset
251 }
26ce0b98f2fb Support for native and emulated atomic operations has been added.
Mike Gorchak <lestat@i.com.ua>
parents:
diff changeset
252
3364
70bfe3337f8a Support for the atomic operations for ARM, PPC, MIPS, SH, X86 platforms has been added.
Mike Gorchak <lestat@i.com.ua>
parents: 3217
diff changeset
253 Uint32
70bfe3337f8a Support for the atomic operations for ARM, PPC, MIPS, SH, X86 platforms has been added.
Mike Gorchak <lestat@i.com.ua>
parents: 3217
diff changeset
254 SDL_AtomicFetchThenSubtract32(volatile Uint32 * ptr, Uint32 value)
3217
26ce0b98f2fb Support for native and emulated atomic operations has been added.
Mike Gorchak <lestat@i.com.ua>
parents:
diff changeset
255 {
3364
70bfe3337f8a Support for the atomic operations for ARM, PPC, MIPS, SH, X86 platforms has been added.
Mike Gorchak <lestat@i.com.ua>
parents: 3217
diff changeset
256 #ifdef nativeFetchThenSubtract32
70bfe3337f8a Support for the atomic operations for ARM, PPC, MIPS, SH, X86 platforms has been added.
Mike Gorchak <lestat@i.com.ua>
parents: 3217
diff changeset
257 return atomic_sub_value(ptr, value);
3217
26ce0b98f2fb Support for native and emulated atomic operations has been added.
Mike Gorchak <lestat@i.com.ua>
parents:
diff changeset
258 #else
3364
70bfe3337f8a Support for the atomic operations for ARM, PPC, MIPS, SH, X86 platforms has been added.
Mike Gorchak <lestat@i.com.ua>
parents: 3217
diff changeset
259 Uint32 tmp = 0;
3217
26ce0b98f2fb Support for native and emulated atomic operations has been added.
Mike Gorchak <lestat@i.com.ua>
parents:
diff changeset
260
3364
70bfe3337f8a Support for the atomic operations for ARM, PPC, MIPS, SH, X86 platforms has been added.
Mike Gorchak <lestat@i.com.ua>
parents: 3217
diff changeset
261 privateWaitLock(ptr);
3217
26ce0b98f2fb Support for native and emulated atomic operations has been added.
Mike Gorchak <lestat@i.com.ua>
parents:
diff changeset
262 tmp = *ptr;
3364
70bfe3337f8a Support for the atomic operations for ARM, PPC, MIPS, SH, X86 platforms has been added.
Mike Gorchak <lestat@i.com.ua>
parents: 3217
diff changeset
263 (*ptr)-= value;
70bfe3337f8a Support for the atomic operations for ARM, PPC, MIPS, SH, X86 platforms has been added.
Mike Gorchak <lestat@i.com.ua>
parents: 3217
diff changeset
264 privateUnlock(ptr);
3217
26ce0b98f2fb Support for native and emulated atomic operations has been added.
Mike Gorchak <lestat@i.com.ua>
parents:
diff changeset
265
26ce0b98f2fb Support for native and emulated atomic operations has been added.
Mike Gorchak <lestat@i.com.ua>
parents:
diff changeset
266 return tmp;
3364
70bfe3337f8a Support for the atomic operations for ARM, PPC, MIPS, SH, X86 platforms has been added.
Mike Gorchak <lestat@i.com.ua>
parents: 3217
diff changeset
267 #endif /* nativeFetchThenSubtract32 */
3217
26ce0b98f2fb Support for native and emulated atomic operations has been added.
Mike Gorchak <lestat@i.com.ua>
parents:
diff changeset
268 }
26ce0b98f2fb Support for native and emulated atomic operations has been added.
Mike Gorchak <lestat@i.com.ua>
parents:
diff changeset
269
3364
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Mike Gorchak <lestat@i.com.ua>
parents: 3217
diff changeset
270 Uint32
70bfe3337f8a Support for the atomic operations for ARM, PPC, MIPS, SH, X86 platforms has been added.
Mike Gorchak <lestat@i.com.ua>
parents: 3217
diff changeset
271 SDL_AtomicIncrementThenFetch32(volatile Uint32 * ptr)
3217
26ce0b98f2fb Support for native and emulated atomic operations has been added.
Mike Gorchak <lestat@i.com.ua>
parents:
diff changeset
272 {
3364
70bfe3337f8a Support for the atomic operations for ARM, PPC, MIPS, SH, X86 platforms has been added.
Mike Gorchak <lestat@i.com.ua>
parents: 3217
diff changeset
273 #ifdef nativeIncrementThenFetch32
70bfe3337f8a Support for the atomic operations for ARM, PPC, MIPS, SH, X86 platforms has been added.
Mike Gorchak <lestat@i.com.ua>
parents: 3217
diff changeset
274 atomic_add(ptr, 0x00000001);
70bfe3337f8a Support for the atomic operations for ARM, PPC, MIPS, SH, X86 platforms has been added.
Mike Gorchak <lestat@i.com.ua>
parents: 3217
diff changeset
275 return atomic_add_value(ptr, 0x00000000);
3217
26ce0b98f2fb Support for native and emulated atomic operations has been added.
Mike Gorchak <lestat@i.com.ua>
parents:
diff changeset
276 #else
3364
70bfe3337f8a Support for the atomic operations for ARM, PPC, MIPS, SH, X86 platforms has been added.
Mike Gorchak <lestat@i.com.ua>
parents: 3217
diff changeset
277 Uint32 tmp = 0;
70bfe3337f8a Support for the atomic operations for ARM, PPC, MIPS, SH, X86 platforms has been added.
Mike Gorchak <lestat@i.com.ua>
parents: 3217
diff changeset
278
70bfe3337f8a Support for the atomic operations for ARM, PPC, MIPS, SH, X86 platforms has been added.
Mike Gorchak <lestat@i.com.ua>
parents: 3217
diff changeset
279 privateWaitLock(ptr);
70bfe3337f8a Support for the atomic operations for ARM, PPC, MIPS, SH, X86 platforms has been added.
Mike Gorchak <lestat@i.com.ua>
parents: 3217
diff changeset
280 (*ptr)+= 1;
70bfe3337f8a Support for the atomic operations for ARM, PPC, MIPS, SH, X86 platforms has been added.
Mike Gorchak <lestat@i.com.ua>
parents: 3217
diff changeset
281 tmp = *ptr;
70bfe3337f8a Support for the atomic operations for ARM, PPC, MIPS, SH, X86 platforms has been added.
Mike Gorchak <lestat@i.com.ua>
parents: 3217
diff changeset
282 privateUnlock(ptr);
70bfe3337f8a Support for the atomic operations for ARM, PPC, MIPS, SH, X86 platforms has been added.
Mike Gorchak <lestat@i.com.ua>
parents: 3217
diff changeset
283
70bfe3337f8a Support for the atomic operations for ARM, PPC, MIPS, SH, X86 platforms has been added.
Mike Gorchak <lestat@i.com.ua>
parents: 3217
diff changeset
284 return tmp;
70bfe3337f8a Support for the atomic operations for ARM, PPC, MIPS, SH, X86 platforms has been added.
Mike Gorchak <lestat@i.com.ua>
parents: 3217
diff changeset
285 #endif /* nativeIncrementThenFetch32 */
70bfe3337f8a Support for the atomic operations for ARM, PPC, MIPS, SH, X86 platforms has been added.
Mike Gorchak <lestat@i.com.ua>
parents: 3217
diff changeset
286 }
3217
26ce0b98f2fb Support for native and emulated atomic operations has been added.
Mike Gorchak <lestat@i.com.ua>
parents:
diff changeset
287
3364
70bfe3337f8a Support for the atomic operations for ARM, PPC, MIPS, SH, X86 platforms has been added.
Mike Gorchak <lestat@i.com.ua>
parents: 3217
diff changeset
288 Uint32
70bfe3337f8a Support for the atomic operations for ARM, PPC, MIPS, SH, X86 platforms has been added.
Mike Gorchak <lestat@i.com.ua>
parents: 3217
diff changeset
289 SDL_AtomicDecrementThenFetch32(volatile Uint32 * ptr)
70bfe3337f8a Support for the atomic operations for ARM, PPC, MIPS, SH, X86 platforms has been added.
Mike Gorchak <lestat@i.com.ua>
parents: 3217
diff changeset
290 {
70bfe3337f8a Support for the atomic operations for ARM, PPC, MIPS, SH, X86 platforms has been added.
Mike Gorchak <lestat@i.com.ua>
parents: 3217
diff changeset
291 #ifdef nativeDecrementThenFetch32
70bfe3337f8a Support for the atomic operations for ARM, PPC, MIPS, SH, X86 platforms has been added.
Mike Gorchak <lestat@i.com.ua>
parents: 3217
diff changeset
292 atomic_sub(ptr, 0x00000001);
70bfe3337f8a Support for the atomic operations for ARM, PPC, MIPS, SH, X86 platforms has been added.
Mike Gorchak <lestat@i.com.ua>
parents: 3217
diff changeset
293 return atomic_sub_value(ptr, 0x00000000);
70bfe3337f8a Support for the atomic operations for ARM, PPC, MIPS, SH, X86 platforms has been added.
Mike Gorchak <lestat@i.com.ua>
parents: 3217
diff changeset
294 #else
70bfe3337f8a Support for the atomic operations for ARM, PPC, MIPS, SH, X86 platforms has been added.
Mike Gorchak <lestat@i.com.ua>
parents: 3217
diff changeset
295 Uint32 tmp = 0;
70bfe3337f8a Support for the atomic operations for ARM, PPC, MIPS, SH, X86 platforms has been added.
Mike Gorchak <lestat@i.com.ua>
parents: 3217
diff changeset
296
70bfe3337f8a Support for the atomic operations for ARM, PPC, MIPS, SH, X86 platforms has been added.
Mike Gorchak <lestat@i.com.ua>
parents: 3217
diff changeset
297 privateWaitLock(ptr);
3217
26ce0b98f2fb Support for native and emulated atomic operations has been added.
Mike Gorchak <lestat@i.com.ua>
parents:
diff changeset
298 (*ptr)-= 1;
26ce0b98f2fb Support for native and emulated atomic operations has been added.
Mike Gorchak <lestat@i.com.ua>
parents:
diff changeset
299 tmp = *ptr;
3364
70bfe3337f8a Support for the atomic operations for ARM, PPC, MIPS, SH, X86 platforms has been added.
Mike Gorchak <lestat@i.com.ua>
parents: 3217
diff changeset
300 privateUnlock(ptr);
3217
26ce0b98f2fb Support for native and emulated atomic operations has been added.
Mike Gorchak <lestat@i.com.ua>
parents:
diff changeset
301
26ce0b98f2fb Support for native and emulated atomic operations has been added.
Mike Gorchak <lestat@i.com.ua>
parents:
diff changeset
302 return tmp;
3364
70bfe3337f8a Support for the atomic operations for ARM, PPC, MIPS, SH, X86 platforms has been added.
Mike Gorchak <lestat@i.com.ua>
parents: 3217
diff changeset
303 #endif /* nativeDecrementThenFetch32 */
3217
26ce0b98f2fb Support for native and emulated atomic operations has been added.
Mike Gorchak <lestat@i.com.ua>
parents:
diff changeset
304 }
26ce0b98f2fb Support for native and emulated atomic operations has been added.
Mike Gorchak <lestat@i.com.ua>
parents:
diff changeset
305
3364
70bfe3337f8a Support for the atomic operations for ARM, PPC, MIPS, SH, X86 platforms has been added.
Mike Gorchak <lestat@i.com.ua>
parents: 3217
diff changeset
306 Uint32
70bfe3337f8a Support for the atomic operations for ARM, PPC, MIPS, SH, X86 platforms has been added.
Mike Gorchak <lestat@i.com.ua>
parents: 3217
diff changeset
307 SDL_AtomicAddThenFetch32(volatile Uint32 * ptr, Uint32 value)
3217
26ce0b98f2fb Support for native and emulated atomic operations has been added.
Mike Gorchak <lestat@i.com.ua>
parents:
diff changeset
308 {
3364
70bfe3337f8a Support for the atomic operations for ARM, PPC, MIPS, SH, X86 platforms has been added.
Mike Gorchak <lestat@i.com.ua>
parents: 3217
diff changeset
309 #ifdef nativeAddThenFetch32
70bfe3337f8a Support for the atomic operations for ARM, PPC, MIPS, SH, X86 platforms has been added.
Mike Gorchak <lestat@i.com.ua>
parents: 3217
diff changeset
310 atomic_add(ptr, value);
70bfe3337f8a Support for the atomic operations for ARM, PPC, MIPS, SH, X86 platforms has been added.
Mike Gorchak <lestat@i.com.ua>
parents: 3217
diff changeset
311 return atomic_add_value(ptr, 0x00000000);
3217
26ce0b98f2fb Support for native and emulated atomic operations has been added.
Mike Gorchak <lestat@i.com.ua>
parents:
diff changeset
312 #else
3364
70bfe3337f8a Support for the atomic operations for ARM, PPC, MIPS, SH, X86 platforms has been added.
Mike Gorchak <lestat@i.com.ua>
parents: 3217
diff changeset
313 Uint32 tmp = 0;
3217
26ce0b98f2fb Support for native and emulated atomic operations has been added.
Mike Gorchak <lestat@i.com.ua>
parents:
diff changeset
314
3364
70bfe3337f8a Support for the atomic operations for ARM, PPC, MIPS, SH, X86 platforms has been added.
Mike Gorchak <lestat@i.com.ua>
parents: 3217
diff changeset
315 privateWaitLock(ptr);
3217
26ce0b98f2fb Support for native and emulated atomic operations has been added.
Mike Gorchak <lestat@i.com.ua>
parents:
diff changeset
316 (*ptr)+= value;
26ce0b98f2fb Support for native and emulated atomic operations has been added.
Mike Gorchak <lestat@i.com.ua>
parents:
diff changeset
317 tmp = *ptr;
3364
70bfe3337f8a Support for the atomic operations for ARM, PPC, MIPS, SH, X86 platforms has been added.
Mike Gorchak <lestat@i.com.ua>
parents: 3217
diff changeset
318 privateUnlock(ptr);
3217
26ce0b98f2fb Support for native and emulated atomic operations has been added.
Mike Gorchak <lestat@i.com.ua>
parents:
diff changeset
319
26ce0b98f2fb Support for native and emulated atomic operations has been added.
Mike Gorchak <lestat@i.com.ua>
parents:
diff changeset
320 return tmp;
3364
70bfe3337f8a Support for the atomic operations for ARM, PPC, MIPS, SH, X86 platforms has been added.
Mike Gorchak <lestat@i.com.ua>
parents: 3217
diff changeset
321 #endif /* nativeAddThenFetch32 */
3217
26ce0b98f2fb Support for native and emulated atomic operations has been added.
Mike Gorchak <lestat@i.com.ua>
parents:
diff changeset
322 }
26ce0b98f2fb Support for native and emulated atomic operations has been added.
Mike Gorchak <lestat@i.com.ua>
parents:
diff changeset
323
3364
70bfe3337f8a Support for the atomic operations for ARM, PPC, MIPS, SH, X86 platforms has been added.
Mike Gorchak <lestat@i.com.ua>
parents: 3217
diff changeset
324 Uint32
70bfe3337f8a Support for the atomic operations for ARM, PPC, MIPS, SH, X86 platforms has been added.
Mike Gorchak <lestat@i.com.ua>
parents: 3217
diff changeset
325 SDL_AtomicSubtractThenFetch32(volatile Uint32 * ptr, Uint32 value)
3217
26ce0b98f2fb Support for native and emulated atomic operations has been added.
Mike Gorchak <lestat@i.com.ua>
parents:
diff changeset
326 {
3364
70bfe3337f8a Support for the atomic operations for ARM, PPC, MIPS, SH, X86 platforms has been added.
Mike Gorchak <lestat@i.com.ua>
parents: 3217
diff changeset
327 #ifdef nativeSubtractThenFetch32
70bfe3337f8a Support for the atomic operations for ARM, PPC, MIPS, SH, X86 platforms has been added.
Mike Gorchak <lestat@i.com.ua>
parents: 3217
diff changeset
328 atomic_sub(ptr, value);
70bfe3337f8a Support for the atomic operations for ARM, PPC, MIPS, SH, X86 platforms has been added.
Mike Gorchak <lestat@i.com.ua>
parents: 3217
diff changeset
329 return atomic_sub_value(ptr, 0x00000000);
3217
26ce0b98f2fb Support for native and emulated atomic operations has been added.
Mike Gorchak <lestat@i.com.ua>
parents:
diff changeset
330 #else
3364
70bfe3337f8a Support for the atomic operations for ARM, PPC, MIPS, SH, X86 platforms has been added.
Mike Gorchak <lestat@i.com.ua>
parents: 3217
diff changeset
331 Uint32 tmp = 0;
3217
26ce0b98f2fb Support for native and emulated atomic operations has been added.
Mike Gorchak <lestat@i.com.ua>
parents:
diff changeset
332
3364
70bfe3337f8a Support for the atomic operations for ARM, PPC, MIPS, SH, X86 platforms has been added.
Mike Gorchak <lestat@i.com.ua>
parents: 3217
diff changeset
333 privateWaitLock(ptr);
70bfe3337f8a Support for the atomic operations for ARM, PPC, MIPS, SH, X86 platforms has been added.
Mike Gorchak <lestat@i.com.ua>
parents: 3217
diff changeset
334 (*ptr)-= value;
3217
26ce0b98f2fb Support for native and emulated atomic operations has been added.
Mike Gorchak <lestat@i.com.ua>
parents:
diff changeset
335 tmp = *ptr;
3364
70bfe3337f8a Support for the atomic operations for ARM, PPC, MIPS, SH, X86 platforms has been added.
Mike Gorchak <lestat@i.com.ua>
parents: 3217
diff changeset
336 privateUnlock(ptr);
3217
26ce0b98f2fb Support for native and emulated atomic operations has been added.
Mike Gorchak <lestat@i.com.ua>
parents:
diff changeset
337
26ce0b98f2fb Support for native and emulated atomic operations has been added.
Mike Gorchak <lestat@i.com.ua>
parents:
diff changeset
338 return tmp;
3364
70bfe3337f8a Support for the atomic operations for ARM, PPC, MIPS, SH, X86 platforms has been added.
Mike Gorchak <lestat@i.com.ua>
parents: 3217
diff changeset
339 #endif /* nativeSubtractThenFetch32 */
3217
26ce0b98f2fb Support for native and emulated atomic operations has been added.
Mike Gorchak <lestat@i.com.ua>
parents:
diff changeset
340 }
26ce0b98f2fb Support for native and emulated atomic operations has been added.
Mike Gorchak <lestat@i.com.ua>
parents:
diff changeset
341
3364
70bfe3337f8a Support for the atomic operations for ARM, PPC, MIPS, SH, X86 platforms has been added.
Mike Gorchak <lestat@i.com.ua>
parents: 3217
diff changeset
342 /* 64 bit atomic operations */
70bfe3337f8a Support for the atomic operations for ARM, PPC, MIPS, SH, X86 platforms has been added.
Mike Gorchak <lestat@i.com.ua>
parents: 3217
diff changeset
343 #ifdef SDL_HAS_64BIT_TYPE
70bfe3337f8a Support for the atomic operations for ARM, PPC, MIPS, SH, X86 platforms has been added.
Mike Gorchak <lestat@i.com.ua>
parents: 3217
diff changeset
344
3217
26ce0b98f2fb Support for native and emulated atomic operations has been added.
Mike Gorchak <lestat@i.com.ua>
parents:
diff changeset
345 SDL_bool
3364
70bfe3337f8a Support for the atomic operations for ARM, PPC, MIPS, SH, X86 platforms has been added.
Mike Gorchak <lestat@i.com.ua>
parents: 3217
diff changeset
346 SDL_AtomicTestThenSet64(volatile Uint64 * ptr)
3217
26ce0b98f2fb Support for native and emulated atomic operations has been added.
Mike Gorchak <lestat@i.com.ua>
parents:
diff changeset
347 {
3364
70bfe3337f8a Support for the atomic operations for ARM, PPC, MIPS, SH, X86 platforms has been added.
Mike Gorchak <lestat@i.com.ua>
parents: 3217
diff changeset
348 #ifdef nativeTestThenSet64
3217
26ce0b98f2fb Support for native and emulated atomic operations has been added.
Mike Gorchak <lestat@i.com.ua>
parents:
diff changeset
349 #else
26ce0b98f2fb Support for native and emulated atomic operations has been added.
Mike Gorchak <lestat@i.com.ua>
parents:
diff changeset
350 SDL_bool result = SDL_FALSE;
26ce0b98f2fb Support for native and emulated atomic operations has been added.
Mike Gorchak <lestat@i.com.ua>
parents:
diff changeset
351
3364
70bfe3337f8a Support for the atomic operations for ARM, PPC, MIPS, SH, X86 platforms has been added.
Mike Gorchak <lestat@i.com.ua>
parents: 3217
diff changeset
352 privateWaitLock(ptr);
3217
26ce0b98f2fb Support for native and emulated atomic operations has been added.
Mike Gorchak <lestat@i.com.ua>
parents:
diff changeset
353 result = (*ptr == 0);
26ce0b98f2fb Support for native and emulated atomic operations has been added.
Mike Gorchak <lestat@i.com.ua>
parents:
diff changeset
354 if (result)
26ce0b98f2fb Support for native and emulated atomic operations has been added.
Mike Gorchak <lestat@i.com.ua>
parents:
diff changeset
355 {
26ce0b98f2fb Support for native and emulated atomic operations has been added.
Mike Gorchak <lestat@i.com.ua>
parents:
diff changeset
356 *ptr = 1;
26ce0b98f2fb Support for native and emulated atomic operations has been added.
Mike Gorchak <lestat@i.com.ua>
parents:
diff changeset
357 }
3364
70bfe3337f8a Support for the atomic operations for ARM, PPC, MIPS, SH, X86 platforms has been added.
Mike Gorchak <lestat@i.com.ua>
parents: 3217
diff changeset
358 privateUnlock(ptr);
3217
26ce0b98f2fb Support for native and emulated atomic operations has been added.
Mike Gorchak <lestat@i.com.ua>
parents:
diff changeset
359
26ce0b98f2fb Support for native and emulated atomic operations has been added.
Mike Gorchak <lestat@i.com.ua>
parents:
diff changeset
360 return result;
3364
70bfe3337f8a Support for the atomic operations for ARM, PPC, MIPS, SH, X86 platforms has been added.
Mike Gorchak <lestat@i.com.ua>
parents: 3217
diff changeset
361 #endif /* nativeTestThenSet64 */
3217
26ce0b98f2fb Support for native and emulated atomic operations has been added.
Mike Gorchak <lestat@i.com.ua>
parents:
diff changeset
362 }
26ce0b98f2fb Support for native and emulated atomic operations has been added.
Mike Gorchak <lestat@i.com.ua>
parents:
diff changeset
363
26ce0b98f2fb Support for native and emulated atomic operations has been added.
Mike Gorchak <lestat@i.com.ua>
parents:
diff changeset
364 void
26ce0b98f2fb Support for native and emulated atomic operations has been added.
Mike Gorchak <lestat@i.com.ua>
parents:
diff changeset
365 SDL_AtomicClear64(volatile Uint64 * ptr)
26ce0b98f2fb Support for native and emulated atomic operations has been added.
Mike Gorchak <lestat@i.com.ua>
parents:
diff changeset
366 {
26ce0b98f2fb Support for native and emulated atomic operations has been added.
Mike Gorchak <lestat@i.com.ua>
parents:
diff changeset
367 #ifdef nativeClear64
26ce0b98f2fb Support for native and emulated atomic operations has been added.
Mike Gorchak <lestat@i.com.ua>
parents:
diff changeset
368 #else
3364
70bfe3337f8a Support for the atomic operations for ARM, PPC, MIPS, SH, X86 platforms has been added.
Mike Gorchak <lestat@i.com.ua>
parents: 3217
diff changeset
369 privateWaitLock(ptr);
3217
26ce0b98f2fb Support for native and emulated atomic operations has been added.
Mike Gorchak <lestat@i.com.ua>
parents:
diff changeset
370 *ptr = 0;
3364
70bfe3337f8a Support for the atomic operations for ARM, PPC, MIPS, SH, X86 platforms has been added.
Mike Gorchak <lestat@i.com.ua>
parents: 3217
diff changeset
371 privateUnlock(ptr);
3217
26ce0b98f2fb Support for native and emulated atomic operations has been added.
Mike Gorchak <lestat@i.com.ua>
parents:
diff changeset
372
26ce0b98f2fb Support for native and emulated atomic operations has been added.
Mike Gorchak <lestat@i.com.ua>
parents:
diff changeset
373 return;
3364
70bfe3337f8a Support for the atomic operations for ARM, PPC, MIPS, SH, X86 platforms has been added.
Mike Gorchak <lestat@i.com.ua>
parents: 3217
diff changeset
374 #endif /* nativeClear64 */
3217
26ce0b98f2fb Support for native and emulated atomic operations has been added.
Mike Gorchak <lestat@i.com.ua>
parents:
diff changeset
375 }
26ce0b98f2fb Support for native and emulated atomic operations has been added.
Mike Gorchak <lestat@i.com.ua>
parents:
diff changeset
376
26ce0b98f2fb Support for native and emulated atomic operations has been added.
Mike Gorchak <lestat@i.com.ua>
parents:
diff changeset
377 Uint64
26ce0b98f2fb Support for native and emulated atomic operations has been added.
Mike Gorchak <lestat@i.com.ua>
parents:
diff changeset
378 SDL_AtomicFetchThenIncrement64(volatile Uint64 * ptr)
26ce0b98f2fb Support for native and emulated atomic operations has been added.
Mike Gorchak <lestat@i.com.ua>
parents:
diff changeset
379 {
26ce0b98f2fb Support for native and emulated atomic operations has been added.
Mike Gorchak <lestat@i.com.ua>
parents:
diff changeset
380 #ifdef nativeFetchThenIncrement64
26ce0b98f2fb Support for native and emulated atomic operations has been added.
Mike Gorchak <lestat@i.com.ua>
parents:
diff changeset
381 #else
26ce0b98f2fb Support for native and emulated atomic operations has been added.
Mike Gorchak <lestat@i.com.ua>
parents:
diff changeset
382 Uint64 tmp = 0;
26ce0b98f2fb Support for native and emulated atomic operations has been added.
Mike Gorchak <lestat@i.com.ua>
parents:
diff changeset
383
3364
70bfe3337f8a Support for the atomic operations for ARM, PPC, MIPS, SH, X86 platforms has been added.
Mike Gorchak <lestat@i.com.ua>
parents: 3217
diff changeset
384 privateWaitLock(ptr);
3217
26ce0b98f2fb Support for native and emulated atomic operations has been added.
Mike Gorchak <lestat@i.com.ua>
parents:
diff changeset
385 tmp = *ptr;
26ce0b98f2fb Support for native and emulated atomic operations has been added.
Mike Gorchak <lestat@i.com.ua>
parents:
diff changeset
386 (*ptr)+= 1;
3364
70bfe3337f8a Support for the atomic operations for ARM, PPC, MIPS, SH, X86 platforms has been added.
Mike Gorchak <lestat@i.com.ua>
parents: 3217
diff changeset
387 privateUnlock(ptr);
3217
26ce0b98f2fb Support for native and emulated atomic operations has been added.
Mike Gorchak <lestat@i.com.ua>
parents:
diff changeset
388
26ce0b98f2fb Support for native and emulated atomic operations has been added.
Mike Gorchak <lestat@i.com.ua>
parents:
diff changeset
389 return tmp;
3364
70bfe3337f8a Support for the atomic operations for ARM, PPC, MIPS, SH, X86 platforms has been added.
Mike Gorchak <lestat@i.com.ua>
parents: 3217
diff changeset
390 #endif /* nativeFetchThenIncrement64 */
3217
26ce0b98f2fb Support for native and emulated atomic operations has been added.
Mike Gorchak <lestat@i.com.ua>
parents:
diff changeset
391 }
26ce0b98f2fb Support for native and emulated atomic operations has been added.
Mike Gorchak <lestat@i.com.ua>
parents:
diff changeset
392
26ce0b98f2fb Support for native and emulated atomic operations has been added.
Mike Gorchak <lestat@i.com.ua>
parents:
diff changeset
393 Uint64
26ce0b98f2fb Support for native and emulated atomic operations has been added.
Mike Gorchak <lestat@i.com.ua>
parents:
diff changeset
394 SDL_AtomicFetchThenDecrement64(volatile Uint64 * ptr)
26ce0b98f2fb Support for native and emulated atomic operations has been added.
Mike Gorchak <lestat@i.com.ua>
parents:
diff changeset
395 {
26ce0b98f2fb Support for native and emulated atomic operations has been added.
Mike Gorchak <lestat@i.com.ua>
parents:
diff changeset
396 #ifdef nativeFetchThenDecrement64
26ce0b98f2fb Support for native and emulated atomic operations has been added.
Mike Gorchak <lestat@i.com.ua>
parents:
diff changeset
397 #else
26ce0b98f2fb Support for native and emulated atomic operations has been added.
Mike Gorchak <lestat@i.com.ua>
parents:
diff changeset
398 Uint64 tmp = 0;
26ce0b98f2fb Support for native and emulated atomic operations has been added.
Mike Gorchak <lestat@i.com.ua>
parents:
diff changeset
399
3364
70bfe3337f8a Support for the atomic operations for ARM, PPC, MIPS, SH, X86 platforms has been added.
Mike Gorchak <lestat@i.com.ua>
parents: 3217
diff changeset
400 privateWaitLock(ptr);
3217
26ce0b98f2fb Support for native and emulated atomic operations has been added.
Mike Gorchak <lestat@i.com.ua>
parents:
diff changeset
401 tmp = *ptr;
26ce0b98f2fb Support for native and emulated atomic operations has been added.
Mike Gorchak <lestat@i.com.ua>
parents:
diff changeset
402 (*ptr) -= 1;
3364
70bfe3337f8a Support for the atomic operations for ARM, PPC, MIPS, SH, X86 platforms has been added.
Mike Gorchak <lestat@i.com.ua>
parents: 3217
diff changeset
403 privateUnlock(ptr);
3217
26ce0b98f2fb Support for native and emulated atomic operations has been added.
Mike Gorchak <lestat@i.com.ua>
parents:
diff changeset
404
26ce0b98f2fb Support for native and emulated atomic operations has been added.
Mike Gorchak <lestat@i.com.ua>
parents:
diff changeset
405 return tmp;
3364
70bfe3337f8a Support for the atomic operations for ARM, PPC, MIPS, SH, X86 platforms has been added.
Mike Gorchak <lestat@i.com.ua>
parents: 3217
diff changeset
406 #endif /* nativeFetchThenDecrement64 */
3217
26ce0b98f2fb Support for native and emulated atomic operations has been added.
Mike Gorchak <lestat@i.com.ua>
parents:
diff changeset
407 }
26ce0b98f2fb Support for native and emulated atomic operations has been added.
Mike Gorchak <lestat@i.com.ua>
parents:
diff changeset
408
26ce0b98f2fb Support for native and emulated atomic operations has been added.
Mike Gorchak <lestat@i.com.ua>
parents:
diff changeset
409 Uint64
26ce0b98f2fb Support for native and emulated atomic operations has been added.
Mike Gorchak <lestat@i.com.ua>
parents:
diff changeset
410 SDL_AtomicFetchThenAdd64(volatile Uint64 * ptr, Uint64 value)
26ce0b98f2fb Support for native and emulated atomic operations has been added.
Mike Gorchak <lestat@i.com.ua>
parents:
diff changeset
411 {
26ce0b98f2fb Support for native and emulated atomic operations has been added.
Mike Gorchak <lestat@i.com.ua>
parents:
diff changeset
412 #ifdef nativeFetchThenAdd64
26ce0b98f2fb Support for native and emulated atomic operations has been added.
Mike Gorchak <lestat@i.com.ua>
parents:
diff changeset
413 #else
26ce0b98f2fb Support for native and emulated atomic operations has been added.
Mike Gorchak <lestat@i.com.ua>
parents:
diff changeset
414 Uint64 tmp = 0;
26ce0b98f2fb Support for native and emulated atomic operations has been added.
Mike Gorchak <lestat@i.com.ua>
parents:
diff changeset
415
3364
70bfe3337f8a Support for the atomic operations for ARM, PPC, MIPS, SH, X86 platforms has been added.
Mike Gorchak <lestat@i.com.ua>
parents: 3217
diff changeset
416 privateWaitLock(ptr);
3217
26ce0b98f2fb Support for native and emulated atomic operations has been added.
Mike Gorchak <lestat@i.com.ua>
parents:
diff changeset
417 tmp = *ptr;
26ce0b98f2fb Support for native and emulated atomic operations has been added.
Mike Gorchak <lestat@i.com.ua>
parents:
diff changeset
418 (*ptr)+= value;
3364
70bfe3337f8a Support for the atomic operations for ARM, PPC, MIPS, SH, X86 platforms has been added.
Mike Gorchak <lestat@i.com.ua>
parents: 3217
diff changeset
419 privateUnlock(ptr);
3217
26ce0b98f2fb Support for native and emulated atomic operations has been added.
Mike Gorchak <lestat@i.com.ua>
parents:
diff changeset
420
26ce0b98f2fb Support for native and emulated atomic operations has been added.
Mike Gorchak <lestat@i.com.ua>
parents:
diff changeset
421 return tmp;
3364
70bfe3337f8a Support for the atomic operations for ARM, PPC, MIPS, SH, X86 platforms has been added.
Mike Gorchak <lestat@i.com.ua>
parents: 3217
diff changeset
422 #endif /* nativeFetchThenAdd64 */
3217
26ce0b98f2fb Support for native and emulated atomic operations has been added.
Mike Gorchak <lestat@i.com.ua>
parents:
diff changeset
423 }
26ce0b98f2fb Support for native and emulated atomic operations has been added.
Mike Gorchak <lestat@i.com.ua>
parents:
diff changeset
424
26ce0b98f2fb Support for native and emulated atomic operations has been added.
Mike Gorchak <lestat@i.com.ua>
parents:
diff changeset
425 Uint64
26ce0b98f2fb Support for native and emulated atomic operations has been added.
Mike Gorchak <lestat@i.com.ua>
parents:
diff changeset
426 SDL_AtomicFetchThenSubtract64(volatile Uint64 * ptr, Uint64 value)
26ce0b98f2fb Support for native and emulated atomic operations has been added.
Mike Gorchak <lestat@i.com.ua>
parents:
diff changeset
427 {
26ce0b98f2fb Support for native and emulated atomic operations has been added.
Mike Gorchak <lestat@i.com.ua>
parents:
diff changeset
428 #ifdef nativeFetchThenSubtract64
26ce0b98f2fb Support for native and emulated atomic operations has been added.
Mike Gorchak <lestat@i.com.ua>
parents:
diff changeset
429 #else
26ce0b98f2fb Support for native and emulated atomic operations has been added.
Mike Gorchak <lestat@i.com.ua>
parents:
diff changeset
430 Uint64 tmp = 0;
26ce0b98f2fb Support for native and emulated atomic operations has been added.
Mike Gorchak <lestat@i.com.ua>
parents:
diff changeset
431
3364
70bfe3337f8a Support for the atomic operations for ARM, PPC, MIPS, SH, X86 platforms has been added.
Mike Gorchak <lestat@i.com.ua>
parents: 3217
diff changeset
432 privateWaitLock(ptr);
3217
26ce0b98f2fb Support for native and emulated atomic operations has been added.
Mike Gorchak <lestat@i.com.ua>
parents:
diff changeset
433 tmp = *ptr;
26ce0b98f2fb Support for native and emulated atomic operations has been added.
Mike Gorchak <lestat@i.com.ua>
parents:
diff changeset
434 (*ptr)-= value;
3364
70bfe3337f8a Support for the atomic operations for ARM, PPC, MIPS, SH, X86 platforms has been added.
Mike Gorchak <lestat@i.com.ua>
parents: 3217
diff changeset
435 privateUnlock(ptr);
3217
26ce0b98f2fb Support for native and emulated atomic operations has been added.
Mike Gorchak <lestat@i.com.ua>
parents:
diff changeset
436
26ce0b98f2fb Support for native and emulated atomic operations has been added.
Mike Gorchak <lestat@i.com.ua>
parents:
diff changeset
437 return tmp;
3364
70bfe3337f8a Support for the atomic operations for ARM, PPC, MIPS, SH, X86 platforms has been added.
Mike Gorchak <lestat@i.com.ua>
parents: 3217
diff changeset
438 #endif /* nativeFetchThenSubtract64 */
3217
26ce0b98f2fb Support for native and emulated atomic operations has been added.
Mike Gorchak <lestat@i.com.ua>
parents:
diff changeset
439 }
26ce0b98f2fb Support for native and emulated atomic operations has been added.
Mike Gorchak <lestat@i.com.ua>
parents:
diff changeset
440
26ce0b98f2fb Support for native and emulated atomic operations has been added.
Mike Gorchak <lestat@i.com.ua>
parents:
diff changeset
441 Uint64
26ce0b98f2fb Support for native and emulated atomic operations has been added.
Mike Gorchak <lestat@i.com.ua>
parents:
diff changeset
442 SDL_AtomicIncrementThenFetch64(volatile Uint64 * ptr)
26ce0b98f2fb Support for native and emulated atomic operations has been added.
Mike Gorchak <lestat@i.com.ua>
parents:
diff changeset
443 {
26ce0b98f2fb Support for native and emulated atomic operations has been added.
Mike Gorchak <lestat@i.com.ua>
parents:
diff changeset
444 #ifdef nativeIncrementThenFetch64
26ce0b98f2fb Support for native and emulated atomic operations has been added.
Mike Gorchak <lestat@i.com.ua>
parents:
diff changeset
445 #else
26ce0b98f2fb Support for native and emulated atomic operations has been added.
Mike Gorchak <lestat@i.com.ua>
parents:
diff changeset
446 Uint64 tmp = 0;
26ce0b98f2fb Support for native and emulated atomic operations has been added.
Mike Gorchak <lestat@i.com.ua>
parents:
diff changeset
447
3364
70bfe3337f8a Support for the atomic operations for ARM, PPC, MIPS, SH, X86 platforms has been added.
Mike Gorchak <lestat@i.com.ua>
parents: 3217
diff changeset
448 privateWaitLock(ptr);
3217
26ce0b98f2fb Support for native and emulated atomic operations has been added.
Mike Gorchak <lestat@i.com.ua>
parents:
diff changeset
449 (*ptr)+= 1;
26ce0b98f2fb Support for native and emulated atomic operations has been added.
Mike Gorchak <lestat@i.com.ua>
parents:
diff changeset
450 tmp = *ptr;
3364
70bfe3337f8a Support for the atomic operations for ARM, PPC, MIPS, SH, X86 platforms has been added.
Mike Gorchak <lestat@i.com.ua>
parents: 3217
diff changeset
451 privateUnlock(ptr);
3217
26ce0b98f2fb Support for native and emulated atomic operations has been added.
Mike Gorchak <lestat@i.com.ua>
parents:
diff changeset
452
26ce0b98f2fb Support for native and emulated atomic operations has been added.
Mike Gorchak <lestat@i.com.ua>
parents:
diff changeset
453 return tmp;
3364
70bfe3337f8a Support for the atomic operations for ARM, PPC, MIPS, SH, X86 platforms has been added.
Mike Gorchak <lestat@i.com.ua>
parents: 3217
diff changeset
454 #endif /* nativeIncrementThenFetch64 */
3217
26ce0b98f2fb Support for native and emulated atomic operations has been added.
Mike Gorchak <lestat@i.com.ua>
parents:
diff changeset
455 }
26ce0b98f2fb Support for native and emulated atomic operations has been added.
Mike Gorchak <lestat@i.com.ua>
parents:
diff changeset
456
26ce0b98f2fb Support for native and emulated atomic operations has been added.
Mike Gorchak <lestat@i.com.ua>
parents:
diff changeset
457 Uint64
26ce0b98f2fb Support for native and emulated atomic operations has been added.
Mike Gorchak <lestat@i.com.ua>
parents:
diff changeset
458 SDL_AtomicDecrementThenFetch64(volatile Uint64 * ptr)
26ce0b98f2fb Support for native and emulated atomic operations has been added.
Mike Gorchak <lestat@i.com.ua>
parents:
diff changeset
459 {
26ce0b98f2fb Support for native and emulated atomic operations has been added.
Mike Gorchak <lestat@i.com.ua>
parents:
diff changeset
460 #ifdef nativeDecrementThenFetch64
26ce0b98f2fb Support for native and emulated atomic operations has been added.
Mike Gorchak <lestat@i.com.ua>
parents:
diff changeset
461 #else
26ce0b98f2fb Support for native and emulated atomic operations has been added.
Mike Gorchak <lestat@i.com.ua>
parents:
diff changeset
462 Uint64 tmp = 0;
26ce0b98f2fb Support for native and emulated atomic operations has been added.
Mike Gorchak <lestat@i.com.ua>
parents:
diff changeset
463
3364
70bfe3337f8a Support for the atomic operations for ARM, PPC, MIPS, SH, X86 platforms has been added.
Mike Gorchak <lestat@i.com.ua>
parents: 3217
diff changeset
464 privateWaitLock(ptr);
3217
26ce0b98f2fb Support for native and emulated atomic operations has been added.
Mike Gorchak <lestat@i.com.ua>
parents:
diff changeset
465 (*ptr)-= 1;
26ce0b98f2fb Support for native and emulated atomic operations has been added.
Mike Gorchak <lestat@i.com.ua>
parents:
diff changeset
466 tmp = *ptr;
3364
70bfe3337f8a Support for the atomic operations for ARM, PPC, MIPS, SH, X86 platforms has been added.
Mike Gorchak <lestat@i.com.ua>
parents: 3217
diff changeset
467 privateUnlock(ptr);
3217
26ce0b98f2fb Support for native and emulated atomic operations has been added.
Mike Gorchak <lestat@i.com.ua>
parents:
diff changeset
468
26ce0b98f2fb Support for native and emulated atomic operations has been added.
Mike Gorchak <lestat@i.com.ua>
parents:
diff changeset
469 return tmp;
3364
70bfe3337f8a Support for the atomic operations for ARM, PPC, MIPS, SH, X86 platforms has been added.
Mike Gorchak <lestat@i.com.ua>
parents: 3217
diff changeset
470 #endif /* nativeDecrementThenFetch64 */
3217
26ce0b98f2fb Support for native and emulated atomic operations has been added.
Mike Gorchak <lestat@i.com.ua>
parents:
diff changeset
471 }
26ce0b98f2fb Support for native and emulated atomic operations has been added.
Mike Gorchak <lestat@i.com.ua>
parents:
diff changeset
472
26ce0b98f2fb Support for native and emulated atomic operations has been added.
Mike Gorchak <lestat@i.com.ua>
parents:
diff changeset
473 Uint64
26ce0b98f2fb Support for native and emulated atomic operations has been added.
Mike Gorchak <lestat@i.com.ua>
parents:
diff changeset
474 SDL_AtomicAddThenFetch64(volatile Uint64 * ptr, Uint64 value)
26ce0b98f2fb Support for native and emulated atomic operations has been added.
Mike Gorchak <lestat@i.com.ua>
parents:
diff changeset
475 {
26ce0b98f2fb Support for native and emulated atomic operations has been added.
Mike Gorchak <lestat@i.com.ua>
parents:
diff changeset
476 #ifdef nativeAddThenFetch64
26ce0b98f2fb Support for native and emulated atomic operations has been added.
Mike Gorchak <lestat@i.com.ua>
parents:
diff changeset
477 #else
26ce0b98f2fb Support for native and emulated atomic operations has been added.
Mike Gorchak <lestat@i.com.ua>
parents:
diff changeset
478 Uint64 tmp = 0;
26ce0b98f2fb Support for native and emulated atomic operations has been added.
Mike Gorchak <lestat@i.com.ua>
parents:
diff changeset
479
3364
70bfe3337f8a Support for the atomic operations for ARM, PPC, MIPS, SH, X86 platforms has been added.
Mike Gorchak <lestat@i.com.ua>
parents: 3217
diff changeset
480 privateWaitLock(ptr);
3217
26ce0b98f2fb Support for native and emulated atomic operations has been added.
Mike Gorchak <lestat@i.com.ua>
parents:
diff changeset
481 (*ptr)+= value;
26ce0b98f2fb Support for native and emulated atomic operations has been added.
Mike Gorchak <lestat@i.com.ua>
parents:
diff changeset
482 tmp = *ptr;
3364
70bfe3337f8a Support for the atomic operations for ARM, PPC, MIPS, SH, X86 platforms has been added.
Mike Gorchak <lestat@i.com.ua>
parents: 3217
diff changeset
483 privateUnlock(ptr);
3217
26ce0b98f2fb Support for native and emulated atomic operations has been added.
Mike Gorchak <lestat@i.com.ua>
parents:
diff changeset
484
26ce0b98f2fb Support for native and emulated atomic operations has been added.
Mike Gorchak <lestat@i.com.ua>
parents:
diff changeset
485 return tmp;
3364
70bfe3337f8a Support for the atomic operations for ARM, PPC, MIPS, SH, X86 platforms has been added.
Mike Gorchak <lestat@i.com.ua>
parents: 3217
diff changeset
486 #endif /* nativeAddThenFetch64 */
3217
26ce0b98f2fb Support for native and emulated atomic operations has been added.
Mike Gorchak <lestat@i.com.ua>
parents:
diff changeset
487 }
26ce0b98f2fb Support for native and emulated atomic operations has been added.
Mike Gorchak <lestat@i.com.ua>
parents:
diff changeset
488
26ce0b98f2fb Support for native and emulated atomic operations has been added.
Mike Gorchak <lestat@i.com.ua>
parents:
diff changeset
489 Uint64
26ce0b98f2fb Support for native and emulated atomic operations has been added.
Mike Gorchak <lestat@i.com.ua>
parents:
diff changeset
490 SDL_AtomicSubtractThenFetch64(volatile Uint64 * ptr, Uint64 value)
26ce0b98f2fb Support for native and emulated atomic operations has been added.
Mike Gorchak <lestat@i.com.ua>
parents:
diff changeset
491 {
26ce0b98f2fb Support for native and emulated atomic operations has been added.
Mike Gorchak <lestat@i.com.ua>
parents:
diff changeset
492 #ifdef nativeSubtractThenFetch64
26ce0b98f2fb Support for native and emulated atomic operations has been added.
Mike Gorchak <lestat@i.com.ua>
parents:
diff changeset
493 #else
26ce0b98f2fb Support for native and emulated atomic operations has been added.
Mike Gorchak <lestat@i.com.ua>
parents:
diff changeset
494 Uint64 tmp = 0;
26ce0b98f2fb Support for native and emulated atomic operations has been added.
Mike Gorchak <lestat@i.com.ua>
parents:
diff changeset
495
3364
70bfe3337f8a Support for the atomic operations for ARM, PPC, MIPS, SH, X86 platforms has been added.
Mike Gorchak <lestat@i.com.ua>
parents: 3217
diff changeset
496 privateWaitLock(ptr);
3217
26ce0b98f2fb Support for native and emulated atomic operations has been added.
Mike Gorchak <lestat@i.com.ua>
parents:
diff changeset
497 (*ptr)-= value;
26ce0b98f2fb Support for native and emulated atomic operations has been added.
Mike Gorchak <lestat@i.com.ua>
parents:
diff changeset
498 tmp = *ptr;
3364
70bfe3337f8a Support for the atomic operations for ARM, PPC, MIPS, SH, X86 platforms has been added.
Mike Gorchak <lestat@i.com.ua>
parents: 3217
diff changeset
499 privateUnlock(ptr);
3217
26ce0b98f2fb Support for native and emulated atomic operations has been added.
Mike Gorchak <lestat@i.com.ua>
parents:
diff changeset
500
26ce0b98f2fb Support for native and emulated atomic operations has been added.
Mike Gorchak <lestat@i.com.ua>
parents:
diff changeset
501 return tmp;
3364
70bfe3337f8a Support for the atomic operations for ARM, PPC, MIPS, SH, X86 platforms has been added.
Mike Gorchak <lestat@i.com.ua>
parents: 3217
diff changeset
502 #endif /* nativeSubtractThenFetch64 */
3217
26ce0b98f2fb Support for native and emulated atomic operations has been added.
Mike Gorchak <lestat@i.com.ua>
parents:
diff changeset
503 }
26ce0b98f2fb Support for native and emulated atomic operations has been added.
Mike Gorchak <lestat@i.com.ua>
parents:
diff changeset
504
3364
70bfe3337f8a Support for the atomic operations for ARM, PPC, MIPS, SH, X86 platforms has been added.
Mike Gorchak <lestat@i.com.ua>
parents: 3217
diff changeset
505 #endif /* SDL_HAS_64BIT_TYPE */