1 | /* |
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2 | Bullet Continuous Collision Detection and Physics Library |
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3 | Copyright (c) 2003-2007 Erwin Coumans http://bulletphysics.com |
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4 | |
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5 | This software is provided 'as-is', without any express or implied warranty. |
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6 | In no event will the authors be held liable for any damages arising from the use of this software. |
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7 | Permission is granted to anyone to use this software for any purpose, |
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8 | including commercial applications, and to alter it and redistribute it freely, |
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9 | subject to the following restrictions: |
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10 | |
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11 | 1. The origin of this software must not be misrepresented; you must not claim that you wrote the original software. If you use this software in a product, an acknowledgment in the product documentation would be appreciated but is not required. |
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12 | 2. Altered source versions must be plainly marked as such, and must not be misrepresented as being the original software. |
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13 | 3. This notice may not be removed or altered from any source distribution. |
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14 | */ |
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15 | |
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16 | |
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17 | #ifndef SPU_LIBSPE2_SUPPORT_H |
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18 | #define SPU_LIBSPE2_SUPPORT_H |
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19 | |
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20 | #include <LinearMath/btScalar.h> //for uint32_t etc. |
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21 | |
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22 | #ifdef USE_LIBSPE2 |
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23 | |
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24 | #include <stdlib.h> |
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25 | #include <stdio.h> |
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26 | //#include "SpuNarrowPhaseCollisionTask/SpuGatheringCollisionTask.h" |
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27 | #include "PlatformDefinitions.h" |
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28 | |
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29 | |
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30 | //extern struct SpuGatherAndProcessPairsTaskDesc; |
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31 | |
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32 | enum |
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33 | { |
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34 | Spu_Mailbox_Event_Nothing = 0, |
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35 | Spu_Mailbox_Event_Task = 1, |
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36 | Spu_Mailbox_Event_Shutdown = 2, |
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37 | |
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38 | Spu_Mailbox_Event_ForceDword = 0xFFFFFFFF |
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39 | |
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40 | }; |
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41 | |
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42 | enum |
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43 | { |
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44 | Spu_Status_Free = 0, |
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45 | Spu_Status_Occupied = 1, |
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46 | Spu_Status_Startup = 2, |
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47 | |
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48 | Spu_Status_ForceDword = 0xFFFFFFFF |
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49 | |
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50 | }; |
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51 | |
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52 | |
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53 | struct btSpuStatus |
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54 | { |
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55 | uint32_t m_taskId; |
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56 | uint32_t m_commandId; |
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57 | uint32_t m_status; |
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58 | |
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59 | addr64 m_taskDesc; |
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60 | addr64 m_lsMemory; |
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61 | |
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62 | } |
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63 | __attribute__ ((aligned (128))) |
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64 | ; |
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65 | |
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66 | |
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67 | |
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68 | #ifndef __SPU__ |
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69 | |
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70 | #include "LinearMath/btAlignedObjectArray.h" |
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71 | #include "SpuCollisionTaskProcess.h" |
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72 | #include "SpuSampleTaskProcess.h" |
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73 | #include "btThreadSupportInterface.h" |
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74 | #include <libspe2.h> |
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75 | #include <pthread.h> |
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76 | #include <sched.h> |
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77 | |
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78 | #define MAX_SPUS 4 |
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79 | |
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80 | typedef struct ppu_pthread_data |
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81 | { |
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82 | spe_context_ptr_t context; |
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83 | pthread_t pthread; |
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84 | unsigned int entry; |
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85 | unsigned int flags; |
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86 | addr64 argp; |
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87 | addr64 envp; |
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88 | spe_stop_info_t stopinfo; |
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89 | } ppu_pthread_data_t; |
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90 | |
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91 | |
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92 | static void *ppu_pthread_function(void *arg) |
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93 | { |
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94 | ppu_pthread_data_t * datap = (ppu_pthread_data_t *)arg; |
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95 | /* |
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96 | int rc; |
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97 | do |
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98 | {*/ |
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99 | spe_context_run(datap->context, &datap->entry, datap->flags, datap->argp.p, datap->envp.p, &datap->stopinfo); |
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100 | if (datap->stopinfo.stop_reason == SPE_EXIT) |
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101 | { |
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102 | if (datap->stopinfo.result.spe_exit_code != 0) |
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103 | { |
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104 | perror("FAILED: SPE returned a non-zero exit status: \n"); |
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105 | exit(1); |
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106 | } |
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107 | } |
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108 | else |
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109 | { |
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110 | perror("FAILED: SPE abnormally terminated\n"); |
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111 | exit(1); |
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112 | } |
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113 | |
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114 | |
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115 | //} while (rc > 0); // loop until exit or error, and while any stop & signal |
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116 | pthread_exit(NULL); |
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117 | } |
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118 | |
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119 | |
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120 | |
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121 | |
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122 | |
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123 | |
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124 | ///SpuLibspe2Support helps to initialize/shutdown libspe2, start/stop SPU tasks and communication |
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125 | class SpuLibspe2Support : public btThreadSupportInterface |
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126 | { |
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127 | |
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128 | btAlignedObjectArray<btSpuStatus> m_activeSpuStatus; |
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129 | |
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130 | public: |
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131 | //Setup and initialize SPU/CELL/Libspe2 |
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132 | SpuLibspe2Support(spe_program_handle_t *speprog,int numThreads); |
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133 | |
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134 | // SPE program handle ptr. |
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135 | spe_program_handle_t *program; |
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136 | |
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137 | // SPE program data |
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138 | ppu_pthread_data_t data[MAX_SPUS]; |
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139 | |
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140 | //cleanup/shutdown Libspe2 |
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141 | ~SpuLibspe2Support(); |
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142 | |
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143 | ///send messages to SPUs |
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144 | void sendRequest(uint32_t uiCommand, uint32_t uiArgument0, uint32_t uiArgument1=0); |
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145 | |
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146 | //check for messages from SPUs |
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147 | void waitForResponse(unsigned int *puiArgument0, unsigned int *puiArgument1); |
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148 | |
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149 | //start the spus (can be called at the beginning of each frame, to make sure that the right SPU program is loaded) |
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150 | virtual void startSPU(); |
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151 | |
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152 | //tell the task scheduler we are done with the SPU tasks |
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153 | virtual void stopSPU(); |
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154 | |
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155 | private: |
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156 | |
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157 | ///start the spus (can be called at the beginning of each frame, to make sure that the right SPU program is loaded) |
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158 | void internal_startSPU(); |
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159 | |
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160 | |
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161 | int numThreads; |
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162 | |
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163 | }; |
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164 | |
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165 | #endif // NOT __SPU__ |
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166 | |
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167 | #endif //USE_LIBSPE2 |
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168 | |
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169 | #endif //SPU_LIBSPE2_SUPPORT_H |
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170 | |
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171 | |
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172 | |
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173 | |
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