TIOVX User Guide
tivx_tensor.h
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62 
63 
64 
65 #ifndef TIVX_TENSOR_H_
66 #define TIVX_TENSOR_H_
67 
68 #ifdef __cplusplus
69 extern "C" {
70 #endif
71 
89 typedef struct _vx_tensor * vx_tensor;
90 
94 enum vx_ext_type_e {
95  VX_TYPE_TENSOR = 0x815,
96 };
97 
101 enum vx_ext_context_attribute_e {
103  VX_CONTEXT_MAX_TENSOR_DIMS = VX_ATTRIBUTE_BASE(VX_ID_KHRONOS, VX_TYPE_CONTEXT) + 0xE,
104 };
105 
110 {
114  VX_TENSOR_DIMS = VX_ATTRIBUTE_BASE( VX_ID_KHRONOS, VX_TYPE_TENSOR ) + 0x1,
129 };
130 
145 VX_API_ENTRY vx_tensor VX_API_CALL vxCreateTensor(vx_context context, vx_size number_of_dims, const vx_size * dims, vx_enum data_type,vx_int8 fixed_point_position);
146 
174 VX_API_ENTRY vx_status VX_API_CALL vxCopyTensorPatch(vx_tensor tensor, vx_size number_of_dims, const vx_size * view_start, const vx_size * view_end,
175  const vx_size * user_stride, void * user_ptr, vx_enum usage, vx_enum user_memory_type);
176 
188 VX_API_ENTRY vx_status VX_API_CALL vxQueryTensor(vx_tensor tensor, vx_enum attribute, void *ptr, vx_size size);
189 
202  vx_tensor tensor, vx_enum attribute, const void *ptr, vx_size size);
203 
213 VX_API_ENTRY vx_status VX_API_CALL vxReleaseTensor(vx_tensor *tensor);
214 
215 
257  vx_tensor tensor,
258  vx_size number_of_dims,
259  const vx_size * view_start,
260  const vx_size * view_end,
261  vx_map_id * map_id,
262  vx_size * stride,
263  void ** ptr,
264  vx_enum usage,
265  vx_enum mem_type);
266 
267 
280 VX_API_ENTRY vx_status VX_API_CALL tivxUnmapTensorPatch(vx_tensor tensor, vx_map_id map_id);
281 
282 
283 #ifdef __cplusplus
284 }
285 #endif
286 
287 #endif
VX_ID_KHRONOS
VX_API_ENTRY vx_status VX_API_CALL vxQueryTensor(vx_tensor tensor, vx_enum attribute, void *ptr, vx_size size)
Retrieves various attributes of a tensor data.
size_t vx_size
Number of dimensions.
Definition: tivx_tensor.h:112
VX_API_ENTRY vx_status VX_API_CALL tivxUnmapTensorPatch(vx_tensor tensor, vx_map_id map_id)
Unmap and commit potential changes to a tensor object patch that were previously mapped. Unmapping a tensor patch invalidates the memory location from which the patch could be accessed by the application. Accessing this memory location after the unmap function completes has an undefined behavior.
int32_t vx_enum
fixed point position of the scaling divisor Read-Write.
Definition: tivx_tensor.h:128
struct _vx_tensor * vx_tensor
The multidimensional data object (Tensor).
Definition: tivx_tensor.h:89
Dimension sizes.
Definition: tivx_tensor.h:114
vx_enum vx_status
struct _vx_context * vx_context
VX_API_ENTRY vx_tensor VX_API_CALL vxCreateTensor(vx_context context, vx_size number_of_dims, const vx_size *dims, vx_enum data_type, vx_int8 fixed_point_position)
Creates an opaque reference to a tensor data buffer.
scaling divisor to be applied to each element when the input element type is integer. Read-Write.
Definition: tivx_tensor.h:124
tensor Data element data type. vx_type_e
Definition: tivx_tensor.h:116
fixed point position when the input element type is integer. Read-Write.
Definition: tivx_tensor.h:120
VX_TYPE_CONTEXT
#define VX_ATTRIBUTE_BASE(vendor, object)
VX_API_ENTRY vx_status VX_API_CALL vxSetTensorAttribute(vx_tensor tensor, vx_enum attribute, const void *ptr, vx_size size)
Sets attributes of a tensor object.
VX_API_ENTRY vx_status VX_API_CALL vxReleaseTensor(vx_tensor *tensor)
Releases a reference to a tensor data object. The object may not be garbage collected until its total...
int8_t vx_int8
vx_tensor_attribute_e
tensor Data attributes.
Definition: tivx_tensor.h:109
VX_API_ENTRY vx_status VX_API_CALL vxCopyTensorPatch(vx_tensor tensor, vx_size number_of_dims, const vx_size *view_start, const vx_size *view_end, const vx_size *user_stride, void *user_ptr, vx_enum usage, vx_enum user_memory_type)
Allows the application to copy a view patch from/into an tensor object .
VX_API_ENTRY vx_status VX_API_CALL tivxMapTensorPatch(vx_tensor tensor, vx_size number_of_dims, const vx_size *view_start, const vx_size *view_end, vx_map_id *map_id, vx_size *stride, void **ptr, vx_enum usage, vx_enum mem_type)
Allows the application to get direct access to a patch of tensor object.
uintptr_t vx_map_id
vx_status(* VX_API_CALL)(vx_reference *ref)
Callback type used to register release callbacks from object derived from references.
Definition: vx_reference.h:56