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Eulerian Smoke Simulation on the GPU
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00001 #ifndef __COMPUTE_ENGINE_H__ 00002 #define __COMPUTE_ENGINE_H__ 00003 00004 //--------------------------------------------------------------------- 00012 //--------------------------------------------------------------------- 00013 00014 #ifdef DARWIN 00015 #include <OpenCL/opencl.h> 00016 #include <OpenGL/openGL.h> 00017 #else 00018 #include <CL/opencl.h> 00019 #include <GL/gl.h> 00020 #endif 00021 00022 #include <map> 00023 #include <stdarg.h> 00024 00032 class ComputeEngine 00033 { 00034 public: 00036 enum DeviceType 00037 { 00038 DEVICE_TYPE_CPU = CL_DEVICE_TYPE_CPU, 00039 DEVICE_TYPE_GPU = CL_DEVICE_TYPE_GPU, 00040 DEVICE_TYPE_DEFAULT = CL_DEVICE_TYPE_DEFAULT, 00041 DEVICE_TYPE_ALL = CL_DEVICE_TYPE_ALL 00042 }; 00043 00045 ComputeEngine(); 00046 00048 ~ComputeEngine(); 00049 00054 bool connect( 00055 DeviceType _deviceType = DEVICE_TYPE_ALL, 00056 unsigned int _count = 1, 00057 bool _useOpenGLContext = false 00058 ); 00059 00061 bool disconnect(); 00062 00066 bool createProgram( 00067 const char* _programName, 00068 const char* _fileName 00069 ); 00070 00074 bool createKernel( 00075 const char* _programName, 00076 const char* _kernelName 00077 ); 00078 00084 bool setKernelArg( 00085 const char* _kernelName, 00086 cl_uint _index, 00087 void* _argsValue, 00088 size_t _argsSize 00089 ); 00090 00095 bool setKernelArg( 00096 const char* _kernelName, 00097 cl_uint _index, 00098 const char* _memObjName 00099 ); 00100 00104 bool setKernelArgs( 00105 const char* _kernelName, 00106 ... 00107 ); 00108 00115 bool executeKernel( 00116 const char* _kernelName, 00117 cl_uint _deviceId, 00118 size_t* _globalDim, 00119 size_t* _localDim, 00120 cl_uint _dimCount 00121 ); 00122 00125 cl_kernel getKernelObject( 00126 const char* _kernelName 00127 ); 00128 00131 cl_mem getMemObject( 00132 const char* _memObjName 00133 ); 00134 00140 bool createBuffer( 00141 const char* _memObjName, 00142 cl_mem_flags _memFlags, 00143 size_t _bytes, 00144 void* _data 00145 ); 00146 00153 bool readBuffer( 00154 const char* _memObjName, 00155 cl_uint _deviceIndex, 00156 cl_uint _start, 00157 size_t _bytes, 00158 void* _data 00159 ); 00160 00167 bool writeBuffer( 00168 const char* _memObjName, 00169 cl_uint _deviceIndex, 00170 cl_uint _start, 00171 size_t _bytes, 00172 void* _data 00173 ); 00174 00184 bool createImage2D( 00185 const char* _memObjName, 00186 cl_mem_flags _memFlags, 00187 cl_channel_order _channelOrder, 00188 cl_channel_type _channelType, 00189 cl_uint _width, 00190 cl_uint _height, 00191 cl_uint _rowPitch = 0, 00192 void* _data = NULL 00193 ); 00194 00206 bool createImage3D( 00207 const char* _memObjName, 00208 cl_mem_flags _memFlags, 00209 cl_channel_order _channelOrder, 00210 cl_channel_type _channelType, 00211 cl_uint _width, 00212 cl_uint _height, 00213 cl_uint _depth, 00214 cl_uint _rowPitch = 0, 00215 cl_uint _slicePitch = 0, 00216 void* _data = NULL 00217 ); 00218 00231 bool readImage( 00232 const char* _memObjName, 00233 cl_uint _deviceIndex, 00234 cl_uint _x, 00235 cl_uint _y, 00236 cl_uint _z, 00237 cl_uint _width, 00238 cl_uint _height, 00239 cl_uint _depth, 00240 cl_uint _rowPitch, 00241 cl_uint _slicePitch, 00242 void* _data 00243 ); 00244 00257 bool writeImage( 00258 const char* _memObjName, 00259 cl_uint _deviceIndex, 00260 cl_uint _x, 00261 cl_uint _y, 00262 cl_uint _z, 00263 cl_uint _width, 00264 cl_uint _height, 00265 cl_uint _depth, 00266 cl_uint _rowPitch, 00267 cl_uint _slicePitch, 00268 void* _data 00269 ); 00270 00278 bool copyBufferToBuffer( 00279 const char* _sourceBufferName, 00280 const char* _destinationBufferName, 00281 cl_uint _deviceIndex, 00282 size_t _sourceOffset, 00283 size_t _destinationOffset, 00284 size_t _bytes 00285 ); 00286 00294 bool copyBufferToBuffer( 00295 cl_mem _sourceBuffer, 00296 cl_mem _destinationBuffer, 00297 cl_uint _deviceIndex, 00298 size_t _sourceOffset, 00299 size_t _destinationOffset, 00300 size_t _bytes 00301 ); 00302 00314 bool copyBufferToImage( 00315 const char* _bufferName, 00316 const char* _imageName, 00317 cl_uint _deviceIndex, 00318 size_t _bufferOffset, 00319 cl_uint _x, 00320 cl_uint _y, 00321 cl_uint _z, 00322 cl_uint _width, 00323 cl_uint _height, 00324 cl_uint _depth 00325 ); 00326 00338 bool copyBufferToImage( 00339 cl_mem _buffer, 00340 cl_mem _image, 00341 cl_uint _deviceIndex, 00342 size_t _bufferOffset, 00343 cl_uint _x, 00344 cl_uint _y, 00345 cl_uint _z, 00346 cl_uint _width, 00347 cl_uint _height, 00348 cl_uint _depth 00349 ); 00350 00362 bool copyImageToBuffer( 00363 const char* _bufferName, 00364 const char* _imageName, 00365 cl_uint _deviceIndex, 00366 cl_uint _x, 00367 cl_uint _y, 00368 cl_uint _z, 00369 cl_uint _width, 00370 cl_uint _height, 00371 cl_uint _depth, 00372 size_t _bufferOffset 00373 ); 00374 00386 bool copyImageToBuffer( 00387 cl_mem _buffer, 00388 cl_mem _image, 00389 cl_uint _deviceIndex, 00390 cl_uint _x, 00391 cl_uint _y, 00392 cl_uint _z, 00393 cl_uint _width, 00394 cl_uint _height, 00395 cl_uint _depth, 00396 size_t _bufferOffset 00397 ); 00398 00403 bool createGLBufferReference( 00404 const char* _memObjName, 00405 cl_mem_flags _memFlags, 00406 cl_uint _bufferId 00407 ); 00408 00415 bool createGLTexture2DReference( 00416 const char* _memObjName, 00417 cl_mem_flags _memFlags, 00418 GLenum _target, 00419 GLint _mipLevel, 00420 GLuint _textureId 00421 ); 00422 00429 bool createGLTexture3DReference( 00430 const char* _memObjName, 00431 cl_mem_flags _memFlags, 00432 GLenum _target, 00433 GLint _mipLevel, 00434 GLuint _textureId 00435 ); 00436 00441 bool createGLRenderBufferReference( 00442 const char* _memObjName, 00443 cl_mem_flags _memFlags, 00444 GLuint _rboId 00445 ); 00446 00447 00451 bool acquireGLObject( 00452 const char* _memObjName, 00453 cl_uint _deviceIndex = 0 00454 ); 00455 00459 bool releaseGLObject( 00460 const char* _memObjName, 00461 cl_uint _deviceIndex = 0 00462 ); 00463 00467 bool swapMemObjects( 00468 const char* _memObjNameA, 00469 const char* _memObjNameB 00470 ); 00471 00477 bool createImageSampler( 00478 const char* _samplerName, 00479 cl_bool _normalizedCoords, 00480 cl_addressing_mode _addressingMode, 00481 cl_filter_mode _filterMode 00482 ); 00483 00486 cl_sampler getSampler( 00487 const char* _samplerName 00488 ); 00489 00493 bool flush( 00494 cl_uint _deviceIndex = 0 00495 ); 00496 00500 bool finish( 00501 cl_uint _deviceIndex = 0 00502 ); 00503 00506 bool barrier( 00507 cl_uint _deviceIndex = 0 00508 ); 00509 00510 00512 cl_uint getContextDeviceCount(); 00513 00517 cl_uint getEstimatedWorkGroupSize( 00518 const char* _kernelName, 00519 cl_uint _deviceIndex = 0 00520 ); 00521 00523 void getCLExtensions(); 00524 00525 private: 00527 unsigned int s_maxDeviceCount; 00529 unsigned int m_deviceCount; 00531 cl_context m_context; 00533 cl_device_id* m_deviceIds; 00535 cl_command_queue* m_commandQueues; 00536 00538 std::map<const char*, cl_program> m_programs; 00540 std::map<const char*, cl_kernel> m_kernels; 00542 std::map<const char*, cl_mem> m_memObjects; 00544 std::map<const char*, cl_sampler> m_samplers; 00545 00547 typedef std::map<const char*, cl_program>::iterator ProgramMapIter; 00549 typedef std::map<const char*, cl_kernel>::iterator KernelMapIter; 00551 typedef std::map<const char*, cl_mem>::iterator MemObjectMapIter; 00553 typedef std::map<const char*, cl_sampler>::iterator SamplerMapIter; 00554 }; 00555 00556 #endif // __COMPUTE_ENGINE_H__
1.7.4 
