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228 Module Documentation Not all Direct3D resources of the above types may be used for interoperability with CUDA. The following are some limitations. • The primary rendertarget may not be registered with CUDA. • Resources allocated as shared may not be registered with CUDA. • Textures which are not of a format which is 1, 2, or 4 channels of 8, 16, or 32-bit integer or floating-point data cannot be shared. • Surfaces of depth or stencil formats cannot be shared. If Direct3D interoperability is not initialized for this context using cuD3D11CtxCreate then CUDA_ERROR_- INVALID_CONTEXT is returned. If pD3DResource is of incorrect type or is already registered then CUDA_- ERROR_INVALID_HANDLE is returned. If pD3DResource cannot be registered then CUDA_ERROR_- UNKNOWN is returned. If Flags is not one of the above specified value then CUDA_ERROR_INVALID_VALUE is returned. Parameters: pCudaResource - Returned graphics resource handle pD3DResource - Direct3D resource to register Flags - Parameters for resource registration Returns: Note: CUDA_SUCCESS, CUDA_ERROR_DEINITIALIZED, CUDA_ERROR_NOT_INITIALIZED, CUDA_- ERROR_INVALID_CONTEXT, CUDA_ERROR_INVALID_VALUE, CUDA_ERROR_INVALID_HANDLE, CUDA_ERROR_OUT_OF_MEMORY, CUDA_ERROR_UNKNOWN See also: Note that this function may also return error codes from previous, asynchronous launches. cuD3D11CtxCreate, cuGraphicsUnregisterResource, cuGraphicsMapResources, cuGraphicsSubResourceGetMappedArray, cuGraphicsResourceGetMappedPointer Generated for NVIDIA CUDA Library by Doxygen
4.39 Graphics Interoperability 229 4.39 Graphics Interoperability Functions • CUresult cuGraphicsMapResources (unsigned int count, CUgraphicsResource ∗resources, CUstream hStream) Map graphics resources for access by CUDA. • CUresult cuGraphicsResourceGetMappedPointer (CUdeviceptr ∗pDevPtr, unsigned int ∗pSize, CUgraphicsResource resource) Get an device pointer through which to access a mapped graphics resource. • CUresult cuGraphicsResourceSetMapFlags (CUgraphicsResource resource, unsigned int flags) Set usage flags for mapping a graphics resource. • CUresult cuGraphicsSubResourceGetMappedArray (CUarray ∗pArray, CUgraphicsResource resource, unsigned int arrayIndex, unsigned int mipLevel) Get an array through which to access a subresource of a mapped graphics resource. • CUresult cuGraphicsUnmapResources (unsigned int count, CUgraphicsResource ∗resources, CUstream hStream) Unmap graphics resources. • CUresult cuGraphicsUnregisterResource (CUgraphicsResource resource) Unregisters a graphics resource for access by CUDA. 4.39.1 Detailed Description This section describes the graphics interoperability functions of the low-level CUDA driver application programming interface. 4.39.2 Function Documentation 4.39.2.1 cuGraphicsMapResources (unsigned int count, CUgraphicsResource ∗ resources, CUstream hStream) Maps the count graphics resources in resources for access by CUDA. The resources in resources may be accessed by CUDA until they are unmapped. The graphics API from which resources were registered should not access any resources while they are mapped by CUDA. If an application does so, the results are undefined. This function provides the synchronization guarantee that any graphics calls issued before cuGraphicsMapResources() will complete before any subsequent CUDA work issued in stream begins. If resources includes any duplicate entries then CUDA_ERROR_INVALID_HANDLE is returned. If any of resources are presently mapped for access by CUDA then CUDA_ERROR_ALREADY_MAPPED is returned. Parameters: count - Number of resources to map Generated for NVIDIA CUDA Library by Doxygen
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NVIDIA CUDA Reference Manual Versio
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ii CONTENTS 4.4.2.6 cudaSetDeviceFl
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iv CONTENTS 4.9.2 Function Document
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vi CONTENTS 4.17.2.3 cudaBindTextur
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viii CONTENTS 4.26.2.2 cuModuleGetG
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x CONTENTS 4.30.2.35 cuMemsetD2D16
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xii CONTENTS 4.37.2.5 cuD3D10Resour
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xiv CONTENTS 5.3 CUDA_MEMCPY2D_st S
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2 Deprecated List Global cudaD3D9Re
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4 Deprecated List Global cuD3D10Res
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6 Module Index Direct3D 9 Interoper
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8 Data Structure Index Generated fo
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10 Module Documentation 4.2 Thread
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12 Module Documentation Note: Note
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14 Module Documentation 4.4.2.2 cud
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16 Module Documentation Parameters:
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18 Module Documentation 4.5 Stream
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20 Module Documentation 4.6 Event M
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24 Module Documentation 4.7 Executi
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28 Module Documentation 4.8 Memory
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30 Module Documentation • cudaErr
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32 Module Documentation Returns: No
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36 Module Documentation struct cuda
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38 Module Documentation 4.8.2.14 cu
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42 Module Documentation Returns: No
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46 Module Documentation See also: c
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48 Module Documentation kind - Type
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50 Module Documentation hOffset - S
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52 Module Documentation src - Sourc
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54 Module Documentation IMPORTANT N
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58 Module Documentation 4.9 OpenGL
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60 Module Documentation target - Id
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62 Module Documentation Returns: cu
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66 Module Documentation 4.11 Direct
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68 Module Documentation • The pri
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70 Module Documentation 4.12.2 Func
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72 Module Documentation flags - Par
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74 Module Documentation If pResourc
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76 Module Documentation • cudaD3D
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78 Module Documentation 4.13 Direct
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80 Module Documentation • Resourc
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82 Module Documentation Maps the co
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92 Module Documentation 4.16 Graphi
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94 Module Documentation • cudaGra
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96 Module Documentation 4.17 Textur
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98 Module Documentation Note: See a
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100 Module Documentation See also:
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102 Module Documentation 4.19 C++ A
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104 Module Documentation 4.19.2.2 t
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106 Module Documentation array - Me
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108 Module Documentation Note: Note
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110 Module Documentation 4.20 Data
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112 Module Documentation • typede
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114 Module Documentation cudaErrorI
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116 Module Documentation 4.21 CUDA
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118 Module Documentation 4.23 Devic
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120 Module Documentation • CU_DEV
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122 Module Documentation typedef st
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124 Module Documentation 4.24 Versi
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126 Module Documentation Returns: N
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128 Module Documentation Note: See
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130 Module Documentation 4.26 Modul
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132 Module Documentation Note: See
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134 Module Documentation optionValu
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136 Module Documentation 4.27 Strea
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138 Module Documentation 4.28 Event
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140 Module Documentation 4.28.2.4 c
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142 Module Documentation 4.29 Execu
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148 Module Documentation Parameters
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150 Module Documentation Copies mem
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152 Module Documentation unsigned i
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158 Module Documentation The pitch
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160 Module Documentation CUdevicept
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162 Module Documentation For device
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164 Module Documentation CUdevicept
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166 Module Documentation If dstMemo
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168 Module Documentation If srcMemo
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170 Module Documentation cuMemcpy3D
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172 Module Documentation 4.30.2.18
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Page 194 and 195: 178 Module Documentation 4.30.2.28
Page 196 and 197: 180 Module Documentation The CUDA c
Page 198 and 199: 182 Module Documentation See also:
Page 200 and 201: 184 Module Documentation 4.30.2.38
Page 202 and 203: 186 Module Documentation 4.31.1 Det
Page 204 and 205: 188 Module Documentation 4.31.2.6 c
Page 206 and 207: 190 Module Documentation Pitch - Li
Page 208 and 209: 192 Module Documentation Parameters
Page 210 and 211: 194 Module Documentation See also:
Page 212 and 213: 196 Module Documentation 4.33 OpenG
Page 214 and 215: 198 Module Documentation Parameters
Page 216 and 217: 200 Module Documentation Note: Note
Page 218 and 219: 202 Module Documentation 4.34 Direc
Page 220 and 221: 204 Module Documentation The Flags
Page 222 and 223: 206 Module Documentation 4.35.2 Fun
Page 224 and 225: 208 Module Documentation • Textur
Page 232 and 233: 216 Module Documentation • CU_GRA
Page 234 and 235: 218 Module Documentation Maps the c
Page 236 and 237: 220 Module Documentation If pResour
Page 246 and 247: 230 Module Documentation resources
Page 248 and 249: 232 Module Documentation Returns: N
Page 250 and 251: 234 Module Documentation 4.40 Data
Page 252 and 253: 236 Module Documentation • enum C
Page 254 and 255: 238 Module Documentation • typede
Page 256 and 257: 240 Module Documentation 4.40.2.3 t
Page 258 and 259: 242 Module Documentation 4.40.3.3 e
Page 260 and 261: 244 Module Documentation CU_DEVICE_
Page 262 and 263: 246 Module Documentation Enumerator
Page 264 and 265: 248 Data Structure Documentation 5.
Page 268 and 269: 252 Data Structure Documentation So
Page 278 and 279: Index C++ API Routines, 102 Context
Page 280 and 281: 264 INDEX CUDA_TYPES, 239 CU_MEMHOS
Page 282 and 283: 266 INDEX CUDA_ERROR_UNMAP_FAILED C
Page 284 and 285: 268 INDEX CUDA_TYPES, 239 cudaBindT
Page 286 and 287: 270 INDEX cudaGetLastError CUDART_E
Page 288 and 289: 272 INDEX cudaGraphicsRegisterFlags
Page 290 and 291: 274 INDEX CUdevice_attribute CUDA_T
Page 292 and 293: 276 INDEX CUMEM, 164 cuMemcpy3DAsyn
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