diff options
Diffstat (limited to 'src/core/CL/cl_kernels/dequantization_layer.cl')
| -rw-r--r-- | src/core/CL/cl_kernels/dequantization_layer.cl | 134 |
1 files changed, 133 insertions, 1 deletions
diff --git a/src/core/CL/cl_kernels/dequantization_layer.cl b/src/core/CL/cl_kernels/dequantization_layer.cl index 7d87dc6a2d..5826847a5e 100644 --- a/src/core/CL/cl_kernels/dequantization_layer.cl +++ b/src/core/CL/cl_kernels/dequantization_layer.cl @@ -87,5 +87,137 @@ __kernel void dequantization_layer( *((__global DATA_TYPE_DST *)(output.ptr)) = (DATA_TYPE_DST)((float)((int)(*((__global DATA_TYPE_SRC *)(input.ptr))) - (int)(OFFSET)) * (float)(SCALE)); #endif // defined(LAST_ACCESSED_X) } - #endif // defined(VEC_SIZE) && defined(DATA_TYPE_SRC) && defined(DATA_TYPE_DST) && defined(SCALE) && defined(OFFSET) + +#if defined(VEC_SIZE) && defined(DATA_TYPE_SRC) && defined(DATA_TYPE_DST) +/** This performs per channel dequantization of 8-bit unsigned integers to floating point. (NCHW) + * + * @note Source datatype should be given as a preprocessor argument using -DDATA_TYPE_SRC=type. e.g. -DDATA_TYPE_SRC=char + * @note Destination datatype should be given as a preprocessor argument using -DDATA_TYPE_DST=type. e.g. -DDATA_TYPE_DST=float + * @note Vector size should be given as a preprocessor argument using -DVEC_SIZE=size. e.g. -DVEC_SIZE=16 + * + * @param[in] input_ptr Pointer to the source tensor. Supported data types: QASYMM8_PER_CHANNEL + * @param[in] input_stride_x Stride of the source tensor in X dimension (in bytes) + * @param[in] input_step_x input_stride_x * number of elements along X processed per workitem(in bytes) + * @param[in] input_stride_y Stride of the source tensor in Y dimension (in bytes) + * @param[in] input_step_y input_stride_y * number of elements along Y processed per workitem(in bytes) + * @param[in] input_stride_z Stride of the source tensor in Z dimension (in bytes) + * @param[in] input_step_z input_stride_z * number of elements along Z processed per workitem(in bytes) + * @param[in] input_offset_first_element_in_bytes The offset of the first element in the source tensor + * @param[out] output_ptr Pointer to the destination tensor. Supported data types: F16/F32 + * @param[in] output_stride_x Stride of the destination tensor in X dimension (in bytes) + * @param[in] output_step_x output_stride_x * number of elements along X processed per workitem(in bytes) + * @param[in] output_stride_y Stride of the destination tensor in Y dimension (in bytes) + * @param[in] output_step_y output_stride_y * number of elements along Y processed per workitem(in bytes) + * @param[in] output_stride_z Stride of the source tensor in Z dimension (in bytes) + * @param[in] output_step_z output_stride_z * number of elements along Z processed per workitem(in bytes) + * @param[in] output_offset_first_element_in_bytes The offset of the first element in the destination tensor + * @param[in] scale Pointer to buffer with the per channel quantized scales + * @param[in] offset Pointer to buffer with the per channel quantized offsets + */ +__kernel void dequantization_layer_per_channel_nchw( + TENSOR3D_DECLARATION(input), + TENSOR3D_DECLARATION(output), + __global float *scale, + __global int *offset) +{ + // Get pixels pointer + Tensor3D input = CONVERT_TO_TENSOR3D_STRUCT(input); + Tensor3D output = CONVERT_TO_TENSOR3D_STRUCT(output); + +#if defined(LAST_ACCESSED_X) + // Check if access on width gets out of bounds + // If it does shift access vector to access elements within bounds + const int xi = (int)(get_global_id(0) * VEC_SIZE); + input.ptr -= max(xi - (int)LAST_ACCESSED_X, 0) * input_stride_x; + output.ptr -= max(xi - (int)LAST_ACCESSED_X, 0) * output_stride_x; + + // Load data + VEC_DATA_TYPE(int, VEC_SIZE) + val = CONVERT(VLOAD(VEC_SIZE)(0, (__global DATA_TYPE_SRC *)input.ptr), VEC_DATA_TYPE(int, VEC_SIZE)); + + // Create scale and offset vectors + const VEC_DATA_TYPE(float, VEC_SIZE) + vscale = scale[get_global_id(2)]; + + const VEC_DATA_TYPE(int, VEC_SIZE) + voffset = offset[get_global_id(2)]; + + // Dequantize + VEC_DATA_TYPE(float, VEC_SIZE) + res = vscale * CONVERT((val - voffset), VEC_DATA_TYPE(float, VEC_SIZE)); + + // Store result + VSTORE(VEC_SIZE) + (CONVERT(res, VEC_DATA_TYPE(DATA_TYPE_DST, VEC_SIZE)), 0, (__global DATA_TYPE_DST *)output.ptr); +#else // !defined(LAST_ACCESSED_X) + *((__global DATA_TYPE_DST *)(output.ptr)) = (DATA_TYPE_DST)((float)((int)(*((__global DATA_TYPE_SRC *)(input.ptr))) - offset[get_global_id(2)]) * scale[get_global_id(2)]); +#endif // defined(LAST_ACCESSED_X) +} +/** This performs per channel dequantization of 8-bit unsigned integers to floating point. (NHWC) + * + * @note Source datatype should be given as a preprocessor argument using -DDATA_TYPE_SRC=type. e.g. -DDATA_TYPE_SRC=char + * @note Destination datatype should be given as a preprocessor argument using -DDATA_TYPE_DST=type. e.g. -DDATA_TYPE_DST=float + * @note Vector size should be given as a preprocessor argument using -DVEC_SIZE=size. e.g. -DVEC_SIZE=16 + * + * @param[in] input_ptr Pointer to the source tensor. Supported data types: QASYMM8_PER_CHANNEL + * @param[in] input_stride_x Stride of the source tensor in X dimension (in bytes) + * @param[in] input_step_x input_stride_x * number of elements along X processed per workitem(in bytes) + * @param[in] input_stride_y Stride of the source tensor in Y dimension (in bytes) + * @param[in] input_step_y input_stride_y * number of elements along Y processed per workitem(in bytes) + * @param[in] input_stride_z Stride of the source tensor in Z dimension (in bytes) + * @param[in] input_step_z input_stride_z * number of elements along Z processed per workitem(in bytes) + * @param[in] input_offset_first_element_in_bytes The offset of the first element in the source tensor + * @param[out] output_ptr Pointer to the destination tensor. Supported data types: F16/F32 + * @param[in] output_stride_x Stride of the destination tensor in X dimension (in bytes) + * @param[in] output_step_x output_stride_x * number of elements along X processed per workitem(in bytes) + * @param[in] output_stride_y Stride of the destination tensor in Y dimension (in bytes) + * @param[in] output_step_y output_stride_y * number of elements along Y processed per workitem(in bytes) + * @param[in] output_stride_z Stride of the source tensor in Z dimension (in bytes) + * @param[in] output_step_z output_stride_z * number of elements along Z processed per workitem(in bytes) + * @param[in] output_offset_first_element_in_bytes The offset of the first element in the destination tensor + * @param[in] scale Pointer to buffer with the per channel quantized scales + * @param[in] offset Pointer to buffer with the per channel quantized offsets + */ +__kernel void dequantization_layer_per_channel_nhwc( + TENSOR3D_DECLARATION(input), + TENSOR3D_DECLARATION(output), + __global float *scale, + __global int *offset) +{ + // Get pixels pointer + Tensor3D input = CONVERT_TO_TENSOR3D_STRUCT(input); + Tensor3D output = CONVERT_TO_TENSOR3D_STRUCT(output); + +#if defined(LAST_ACCESSED_X) + // Check if access on width gets out of bounds + // If it does shift access vector to access elements within bounds + const int xi = (int)(get_global_id(0) * VEC_SIZE); + input.ptr -= max(xi - (int)LAST_ACCESSED_X, 0) * input_stride_x; + output.ptr -= max(xi - (int)LAST_ACCESSED_X, 0) * output_stride_x; + scale -= max(xi - (int)LAST_ACCESSED_X, 0); + offset -= max(xi - (int)LAST_ACCESSED_X, 0); + + // Load data + VEC_DATA_TYPE(int, VEC_SIZE) + val = CONVERT(VLOAD(VEC_SIZE)(0, (__global DATA_TYPE_SRC *)input.ptr), VEC_DATA_TYPE(int, VEC_SIZE)); + + // Create scale and offset vectors + const VEC_DATA_TYPE(float, VEC_SIZE) + vscale = VLOAD(VEC_SIZE)(0, &scale[xi]); + + const VEC_DATA_TYPE(int, VEC_SIZE) + voffset = VLOAD(VEC_SIZE)(0, &offset[xi]); + + // Dequantize + VEC_DATA_TYPE(float, VEC_SIZE) + res = vscale * CONVERT((val - voffset), VEC_DATA_TYPE(float, VEC_SIZE)); + + // Store result + VSTORE(VEC_SIZE) + (CONVERT(res, VEC_DATA_TYPE(DATA_TYPE_DST, VEC_SIZE)), 0, (__global DATA_TYPE_DST *)output.ptr); +#else // !defined(LAST_ACCESSED_X) + *((__global DATA_TYPE_DST *)(output.ptr)) = (DATA_TYPE_DST)((float)((int)(*((__global DATA_TYPE_SRC *)(input.ptr))) - offset[get_global_id(0)]) * scale[get_global_id(0)]); +#endif // defined(LAST_ACCESSED_X) +} +#endif // defined(VEC_SIZE) && defined(DATA_TYPE_SRC) && defined(DATA_TYPE_DST) |