static vx_status VX_CALLBACK vxSubtractionKernel(vx_node node, const vx_reference *parameters, vx_uint32 num)
{
if (num == 4)
{
vx_image in0 = (vx_image)parameters[0];
vx_image in1 = (vx_image)parameters[1];
vx_scalar policy_param = (vx_scalar)parameters[2];
vx_image output = (vx_image)parameters[3];
return vxSubtraction(in0, in1, policy_param, output);
}
return VX_ERROR_INVALID_PARAMETERS;
}
static vx_status VX_CALLBACK vxSubtractionKernel(vx_node node, const vx_reference parameters[], vx_uint32 num)
{
if (num == dimof(add_subtract_kernel_params))
{
vx_status status = VX_SUCCESS;
vx_image in0 = (vx_image)parameters[0];
vx_image in1 = (vx_image)parameters[1];
vx_scalar policy_param = (vx_scalar)parameters[2];
vx_image output = (vx_image)parameters[3];
vx_bool is_replicated = vx_false_e;
status = vxQueryNode(node, VX_NODE_IS_REPLICATED, &is_replicated, sizeof(is_replicated));
if (VX_SUCCESS != status)
return status;
if (vx_true_e == is_replicated)
{
vx_size i;
vx_bool replicas[VX_INT_MAX_PARAMS] = { vx_false_e };
status = vxQueryNode(node, VX_NODE_REPLICATE_FLAGS, replicas, sizeof(vx_bool)*num);
if (VX_SUCCESS != status)
return status;
/* if node is replicated, in0, in1 and output params have to be replicated */
if (vx_true_e == replicas[0] && vx_true_e == replicas[1] &&
vx_true_e != replicas[2] &&
vx_true_e == replicas[3])
{
/* all params have to be pyramid (supported now) or image arrays (not implemented yet) */
if (in0->base.scope->type == VX_TYPE_PYRAMID && in1->base.scope->type == VX_TYPE_PYRAMID &&
output->base.scope->type == VX_TYPE_PYRAMID)
{
vx_size pyr0_levels = 0;
vx_size pyr1_levels = 0;
vx_size pyr3_levels = 0;
vx_pyramid pyr0 = (vx_pyramid)in0->base.scope;
vx_pyramid pyr1 = (vx_pyramid)in1->base.scope;
vx_pyramid pyr3 = (vx_pyramid)output->base.scope;
status = vxQueryPyramid(pyr0, VX_PYRAMID_LEVELS, &pyr0_levels, sizeof(pyr0_levels));
if (VX_SUCCESS != status)
return status;
status = vxQueryPyramid(pyr1, VX_PYRAMID_LEVELS, &pyr1_levels, sizeof(pyr1_levels));
if (VX_SUCCESS != status)
return status;
status = vxQueryPyramid(pyr3, VX_PYRAMID_LEVELS, &pyr3_levels, sizeof(pyr3_levels));
if (VX_SUCCESS != status)
return status;
if (pyr0_levels != pyr1_levels || pyr0_levels != pyr3_levels)
return VX_FAILURE;
for (i = 0; i < pyr3_levels; i++)
{
vx_image src0 = vxGetPyramidLevel(pyr0, i);
vx_image src1 = vxGetPyramidLevel(pyr1, i);
vx_image dst = vxGetPyramidLevel(pyr3, i);
status = vxSubtraction(src0, src1, policy_param, dst);
status |= vxReleaseImage(&src0);
status |= vxReleaseImage(&src1);
status |= vxReleaseImage(&dst);
}
}
}
}
else
status = vxSubtraction(in0, in1, policy_param, output);
return status;
}
return VX_ERROR_INVALID_PARAMETERS;
}
