VX_API_ENTRY vx_status VX_API_CALL vxAccessDistribution(vx_distribution distribution, void **ptr, vx_enum usage)
{
vx_status status = VX_FAILURE;
if ((vxIsValidSpecificReference(&distribution->base, VX_TYPE_DISTRIBUTION) == vx_true_e) &&
(vxAllocateMemory(distribution->base.context, &distribution->memory) == vx_true_e))
{
if (ptr != NULL)
{
vxSemWait(&distribution->base.lock);
{
vx_size size = vxComputeMemorySize(&distribution->memory, 0);
vxPrintMemory(&distribution->memory);
if (*ptr == NULL)
{
*ptr = distribution->memory.ptrs[0];
}
else if (*ptr != NULL)
{
memcpy(*ptr, distribution->memory.ptrs[0], size);
}
}
vxSemPost(&distribution->base.lock);
vxReadFromReference(&distribution->base);
}
vxIncrementReference(&distribution->base, VX_EXTERNAL);
status = VX_SUCCESS;
}
else
{
VX_PRINT(VX_ZONE_ERROR, "Not a valid object!\n");
}
return status;
}
VX_API_ENTRY vx_parameter VX_API_CALL vxGetKernelParameterByIndex(vx_kernel kernel, vx_uint32 index)
{
vx_parameter parameter = NULL;
if (vxIsValidSpecificReference(&kernel->base, VX_TYPE_KERNEL) == vx_true_e)
{
if (index < VX_INT_MAX_PARAMS && index < kernel->signature.num_parameters)
{
parameter = (vx_parameter)vxCreateReference(kernel->base.context, VX_TYPE_PARAMETER, VX_EXTERNAL, &kernel->base.context->base);
if (parameter && parameter->base.type == VX_TYPE_PARAMETER)
{
parameter->index = index;
parameter->node = NULL;
parameter->kernel = kernel;
vxIncrementReference(¶meter->kernel->base, VX_INTERNAL);
}
}
else
{
vxAddLogEntry(&kernel->base, VX_ERROR_INVALID_PARAMETERS, "Index %u out of range for node %s (numparams = %u)!\n",
index, kernel->name, kernel->signature.num_parameters);
parameter = (vx_parameter_t *)vxGetErrorObject(kernel->base.context, VX_ERROR_INVALID_PARAMETERS);
}
}
return parameter;
}
VX_API_ENTRY vx_parameter VX_API_CALL vxGetParameterByIndex(vx_node node, vx_uint32 index)
{
vx_parameter param = NULL;
if (vxIsValidSpecificReference(&node->base, VX_TYPE_NODE) == vx_false_e)
{
return param;
}
if (node->kernel == NULL)
{
/* this can probably never happen */
vxAddLogEntry(&node->base, VX_ERROR_INVALID_NODE, "Node was created without a kernel! Fatal Error!\n");
param = (vx_parameter_t *)vxGetErrorObject(node->base.context, VX_ERROR_INVALID_NODE);
}
else
{
if (/*0 <= index &&*/ index < VX_INT_MAX_PARAMS && index < node->kernel->signature.num_parameters)
{
param = (vx_parameter)vxCreateReference(node->base.context, VX_TYPE_PARAMETER, VX_EXTERNAL, &node->base);
if (param && param->base.type == VX_TYPE_PARAMETER)
{
param->index = index;
param->node = node;
vxIncrementReference(¶m->node->base, VX_INTERNAL);
param->kernel = node->kernel;
vxIncrementReference(¶m->kernel->base, VX_INTERNAL);
// if (node->parameters[index])
// vxIncrementReference(node->parameters[index], VX_INTERNAL);
}
}
else
{
vxAddLogEntry(&node->base, VX_ERROR_INVALID_PARAMETERS, "Index %u out of range for node %s (numparams = %u)!\n",
index, node->kernel->name, node->kernel->signature.num_parameters);
param = (vx_parameter_t *)vxGetErrorObject(node->base.context, VX_ERROR_INVALID_PARAMETERS);
}
}
VX_PRINT(VX_ZONE_API, "%s: returning %p\n", __FUNCTION__, param);
return param;
}
VX_API_ENTRY vx_image VX_API_CALL vxGetPyramidLevel(vx_pyramid pyramid, vx_uint32 index)
{
vx_image image = 0;
if (vxIsValidSpecificReference(&pyramid->base, VX_TYPE_PYRAMID) == vx_true_e)
{
if (index < pyramid->numLevels)
{
image = pyramid->levels[index];
vxIncrementReference(&image->base, VX_EXTERNAL);
}
}
return image;
}
VX_API_ENTRY vx_reference VX_API_CALL vxGetReferenceByName(vx_import import, const vx_char *name)
{
vx_reference ref = NULL;
if (import && import->base.type == VX_TYPE_IMPORT)
{
vx_uint32 index = 0;
for (index = 0; index < import->count; index++)
{
if (strncmp(name, import->refs[index]->name, VX_MAX_REFERENCE_NAME) == 0)
{
ref = (vx_reference_t*)import->refs[index];
vxIncrementReference(ref, VX_EXTERNAL);
break;
}
}
}
return ref;
}
vx_status vxInitializeKernel(vx_context_t *context,
vx_kernel_t *kernel,
vx_enum kenum,
vx_kernel_f function,
vx_char name[VX_MAX_KERNEL_NAME],
vx_param_description_t *parameters,
vx_uint32 numParams,
vx_kernel_input_validate_f in_validator,
vx_kernel_output_validate_f out_validator,
vx_kernel_initialize_f initialize,
vx_kernel_deinitialize_f deinitialize)
{
if (kernel)
{
vxInitReference((vx_reference_t *)kernel, context, VX_TYPE_KERNEL);
vxIncrementReference(&kernel->base);
// setup the kernel meta-data
strncpy(kernel->name, name, VX_MAX_KERNEL_NAME);
kernel->enumeration = kenum;
kernel->function = function;
kernel->signature.numParams = numParams;
kernel->validate_input = in_validator;
kernel->validate_output = out_validator;
kernel->initialize = initialize;
kernel->deinitialize = deinitialize;
kernel->attributes.borders.mode = VX_BORDER_MODE_UNDEFINED;
kernel->attributes.borders.constant_value = 0;
if (kernel->signature.numParams < VX_INT_MAX_PARAMS)
{
vx_uint32 p = 0;
if (parameters != NULL)
{
for (p = 0; p < numParams; p++)
{
kernel->signature.directions[p] = parameters[p].direction;
kernel->signature.types[p] = parameters[p].type;
kernel->signature.states[p] = parameters[p].state;
}
kernel->enabled = vx_true_e;
}
}
}
return VX_SUCCESS;
}
vx_kernel vxGetKernelByName(vx_context c, vx_char *name)
{
vx_kernel_t *kern = NULL;
vx_context_t *context = (vx_context_t *)c;
if (vxIsValidContext(context) == vx_true_e)
{
vx_uint32 k = 0u, t = 0u;
VX_PRINT(VX_ZONE_KERNEL, "Scanning for kernel %s out of %d kernels\n", name, context->numKernels);
for (t = 0; t < context->numTargets; t++)
{
vx_target_t *target = &context->targets[context->priority_targets[t]];
for (k = 0; k < target->numKernels; k++)
{
vx_kernel_t *kernel = &target->kernels[k];
vxPrintKernel(kernel);
if ((kernel->enabled == vx_true_e) &&
(strncmp(kernel->name, name, VX_MAX_KERNEL_NAME) == 0))
{
kernel->affinity = context->priority_targets[t];
kern = kernel;
vxIncrementReference(&kern->base);
break;
}
kernel = NULL;
}
if (kern != NULL)
break;
}
}
else
{
VX_PRINT(VX_ZONE_ERROR, "Invalid context %p\n", context);
}
if (kern == NULL)
{
VX_PRINT(VX_ZONE_ERROR, "Failed to find kernel %s\n", name);
}
else
{
VX_PRINT(VX_ZONE_KERNEL,"Found Kernel enum %d, name %s\n", kern->enumeration, kern->name);
}
return (vx_kernel)kern;
}
vx_kernel vxGetKernelByEnum(vx_context c, vx_enum kernelenum)
{
vx_kernel_t *kern = NULL;
vx_context_t *context = (vx_context_t *)c;
vxPrintReference(&context->base);
if (vxIsValidContext(context) == vx_true_e)
{
if (VX_KERNEL_INVALID >= kernelenum)
{
vxAddLogEntry(c, VX_ERROR_INVALID_PARAMETERS, "Invalid kernel enumeration (%d)\n", kernelenum);
}
else if (kernelenum > VX_KERNEL_INVALID) // no upper bound for kernel enum
{
vx_uint32 k = 0u, t = 0u;
VX_PRINT(VX_ZONE_KERNEL,"Scanning for kernel enum %d out of %d kernels\n", kernelenum, context->numKernels);
for (t = 0; t < context->numTargets; t++)
{
vx_target_t *target = &context->targets[context->priority_targets[t]];
VX_PRINT(VX_ZONE_KERNEL, "Checking Target[%u]=%s for %u kernels\n", context->priority_targets[t], target->name, target->numKernels);
for (k = 0; k < target->numKernels; k++)
{
vx_kernel_t *kernel = &target->kernels[k];
if (kernel->enumeration == kernelenum)
{
kernel->affinity = context->priority_targets[t];
kern = kernel;
vxIncrementReference(&kern->base);
VX_PRINT(VX_ZONE_KERNEL,"Found Kernel[%u] enum:%d name:%s in target[%u]=%s\n", k, kernelenum, kern->name, context->priority_targets[t], target->name);
break;
}
kernel = NULL;
}
if (kern != NULL)
break;
}
}
}
else
{
VX_PRINT(VX_ZONE_ERROR, "Invalid context %p\n", context);
}
return (vx_kernel)kern;
}
vx_threshold vxCreateThreshold(vx_context c, vx_enum type)
{
vx_context_t *context = (vx_context_t *)c;
vx_threshold_t *thresh = NULL;
if (vxIsValidThresholdType(type) == vx_true_e)
{
if (vxIsValidContext(context) == vx_true_e)
{
thresh = VX_CALLOC(vx_threshold_t);
if (thresh)
{
vxInitReference(&thresh->base, context, VX_TYPE_THRESHOLD);
vxIncrementReference(&thresh->base);
vxAddReference(thresh->base.context, (vx_reference_t *)thresh);
thresh->type = type;
}
}
}
return (vx_threshold)thresh;
}
vx_status vxAccessConvolutionCoefficients(vx_convolution conv, vx_int16 *array)
{
vx_convolution_t *convolution = (vx_convolution_t *)conv;
vx_status status = VX_ERROR_INVALID_REFERENCE;
if ((vxIsValidSpecificReference(&convolution->base.base, VX_TYPE_CONVOLUTION) == vx_true_e) &&
(vxAllocateMemory(convolution->base.base.context, &convolution->base.memory) == vx_true_e))
{
vxSemWait(&convolution->base.base.lock);
if (array)
{
vx_size size = convolution->base.memory.strides[0][1] *
convolution->base.memory.dims[0][1];
memcpy(array, convolution->base.memory.ptrs[0], size);
}
vxSemPost(&convolution->base.base.lock);
vxReadFromReference(&convolution->base.base);
vxIncrementReference(&convolution->base.base);
status = VX_SUCCESS;
}
return status;
}
vx_kernel_t *vxAllocateKernel(vx_context_t *context,
vx_enum kenum,
vx_kernel_f function,
vx_char name[VX_MAX_KERNEL_NAME],
vx_param_description_t *parameters,
vx_uint32 numParams)
{
vx_kernel_t *kernel = VX_CALLOC(vx_kernel_t);
if (kernel)
{
vxInitReference((vx_reference_t *)kernel, context, VX_TYPE_KERNEL);
vxIncrementReference(&kernel->base);
/* setup the kernel meta-data */
strncpy(kernel->name, name, VX_MAX_KERNEL_NAME);
kernel->enumeration = kenum;
kernel->function = function;
kernel->signature.numParams = numParams;
kernel->attributes.borders.mode = VX_BORDER_MODE_UNDEFINED;
if (kernel->signature.numParams < VX_INT_MAX_PARAMS)
{
vx_uint32 p = 0;
if (parameters != NULL)
{
for (p = 0; p < numParams; p++)
{
kernel->signature.directions[p] = parameters[p].direction;
kernel->signature.types[p] = parameters[p].type;
}
}
}
else
{
free(kernel);
kernel = NULL;
}
}
return kernel;
}
VX_API_ENTRY vx_reference VX_API_CALL vxGetReferenceByIndex(vx_import import, vx_uint32 index)
{
vx_reference ref = NULL;
if (import && import->base.type == VX_TYPE_IMPORT)
{
if (index < import->count)
{
ref = (vx_reference_t *)import->refs[index];
vxIncrementReference(ref, VX_EXTERNAL);
}
else
{
VX_PRINT(VX_ZONE_ERROR, "Incorrect index value\n");
vxAddLogEntry(&import->base.context->base, VX_ERROR_INVALID_PARAMETERS, "Incorrect index value\n");
ref = (vx_reference_t *)vxGetErrorObject(import->base.context, VX_ERROR_INVALID_PARAMETERS);
}
}
else
{
VX_PRINT(VX_ZONE_ERROR, "Invalid import reference!\n");
}
return ref;
}
vx_convolution vxCreateConvolution(vx_context context, vx_size columns, vx_size rows)
{
vx_convolution_t *convolution = NULL;
if (vxIsValidContext((vx_context_t *)context) == vx_true_e &&
isodd(columns) && columns >= 3 && isodd(rows) && rows >= 3)
{
convolution = VX_CALLOC(vx_convolution_t);
if (convolution)
{
vxInitReference(&convolution->base.base, (vx_context_t *)context, VX_TYPE_CONVOLUTION);
vxIncrementReference(&convolution->base.base);
vxAddReference(convolution->base.base.context, &convolution->base.base);
convolution->base.type = VX_TYPE_INT16;
convolution->base.columns = columns;
convolution->base.rows = rows;
convolution->base.memory.ndims = 2;
convolution->base.memory.nptrs = 1;
convolution->base.memory.dims[0][0] = sizeof(vx_int16);
convolution->base.memory.dims[0][1] = (vx_int32)(columns*rows);
convolution->scale = 1;
}
}
return (vx_convolution)convolution;
}
VX_API_ENTRY vx_context VX_API_CALL vxCreateContext()
#endif
{
vx_context context = NULL;
if (single_context == NULL)
{
vxCreateSem(&context_lock, 1);
vxCreateSem(&global_lock, 1);
}
vxSemWait(&context_lock);
if (single_context == NULL)
{
/* read the variables for debugging flags */
vx_set_debug_zone_from_env();
context = VX_CALLOC(vx_context_t); /* \todo get from allocator? */
if (context)
{
vx_uint32 p = 0u, p2 = 0u, t = 0u;
context->p_global_lock = &global_lock;
context->imm_border.mode = VX_BORDER_UNDEFINED;
context->imm_border_policy = VX_BORDER_POLICY_DEFAULT_TO_UNDEFINED;
context->next_dynamic_user_kernel_id = 0;
context->next_dynamic_user_library_id = 1;
vxInitReference(&context->base, NULL, VX_TYPE_CONTEXT, NULL);
#if !DISABLE_ICD_COMPATIBILITY
context->base.platform = platform;
#endif
vxIncrementReference(&context->base, VX_EXTERNAL);
context->workers = vxCreateThreadpool(VX_INT_HOST_CORES,
VX_INT_MAX_REF, /* very deep queues! */
sizeof(vx_work_t),
vxWorkerNode,
context);
vxCreateConstErrors(context);
#ifdef EXPERIMENTAL_USE_HEXAGON
remote_handle_open((const char *)OPENVX_HEXAGON_NAME, &tmp_ph);
#endif
/* load all targets */
for (t = 0u; t < dimof(targetModules); t++)
{
if (vxLoadTarget(context, targetModules[t]) == VX_SUCCESS)
{
context->num_targets++;
}
}
if (context->num_targets == 0)
{
VX_PRINT(VX_ZONE_ERROR, "No targets loaded!\n");
free(context);
vxSemPost(&context_lock);
return 0;
}
/* initialize all targets */
for (t = 0u; t < context->num_targets; t++)
{
if (context->targets[t].module.handle)
{
/* call the init function */
if (context->targets[t].funcs.init(&context->targets[t]) != VX_SUCCESS)
{
VX_PRINT(VX_ZONE_WARNING, "Target %s failed to initialize!\n", context->targets[t].name);
/* unload this module */
vxUnloadTarget(context, t, vx_true_e);
break;
}
else
{
context->targets[t].enabled = vx_true_e;
}
}
}
/* assign the targets by priority into the list */
p2 = 0u;
for (p = 0u; p < VX_TARGET_PRIORITY_MAX; p++)
{
for (t = 0u; t < context->num_targets; t++)
{
vx_target_t * target = &context->targets[t];
if (p == target->priority)
{
context->priority_targets[p2] = t;
p2++;
}
}
}
/* print out the priority list */
for (t = 0u; t < context->num_targets; t++)
{
vx_target_t *target = &context->targets[context->priority_targets[t]];
if (target->enabled == vx_true_e)
{
VX_PRINT(VX_ZONE_TARGET, "target[%u]: %s\n",
target->priority,
target->name);
}
}
// create the internal thread which processes graphs for asynchronous mode.
vxInitQueue(&context->proc.input);
vxInitQueue(&context->proc.output);
context->proc.running = vx_true_e;
context->proc.thread = vxCreateThread(vxWorkerGraph, &context->proc);
single_context = context;
context->imm_target_enum = VX_TARGET_ANY;
memset(context->imm_target_string, 0, sizeof(context->imm_target_string));
/* memory maps table lock */
vxCreateSem(&context->memory_maps_lock, 1);
}
}
else
{
context = single_context;
vxIncrementReference(&context->base, VX_EXTERNAL);
}
vxSemPost(&context_lock);
return (vx_context)context;
}
vx_status vxInitPyramid(vx_pyramid pyramid,
vx_size levels,
vx_float32 scale,
vx_uint32 width,
vx_uint32 height,
vx_df_image format)
{
const vx_float32 c_orbscale[4] = {0.5f, VX_SCALE_PYRAMID_ORB, VX_SCALE_PYRAMID_ORB * VX_SCALE_PYRAMID_ORB, VX_SCALE_PYRAMID_ORB * VX_SCALE_PYRAMID_ORB * VX_SCALE_PYRAMID_ORB};
vx_status status = VX_SUCCESS;
/* very first init will come in here */
if (pyramid->levels == NULL)
{
pyramid->numLevels = levels;
pyramid->scale = scale;
pyramid->levels = (vx_image *)calloc(levels, sizeof(vx_image_t *));
}
/* these could be "virtual" values or hard values */
pyramid->width = width;
pyramid->height = height;
pyramid->format = format;
if (pyramid->levels)
{
if (pyramid->width != 0 && pyramid->height != 0 && format != VX_DF_IMAGE_VIRT)
{
vx_int32 i;
vx_uint32 w = pyramid->width;
vx_uint32 h = pyramid->height;
vx_uint32 ref_w = pyramid->width;
vx_uint32 ref_h = pyramid->height;
for (i = 0; i < pyramid->numLevels; i++)
{
vx_context c = (vx_context)pyramid->base.context;
if (pyramid->levels[i] == 0)
{
pyramid->levels[i] = vxCreateImage(c, w, h, format);
/* increment the internal counter on the image, not the external one */
vxIncrementReference((vx_reference_t *)pyramid->levels[i], VX_INTERNAL);
vxDecrementReference((vx_reference_t *)pyramid->levels[i], VX_EXTERNAL);
/* remember that the scope of the image is the pyramid */
((vx_image_t *)pyramid->levels[i])->base.scope = (vx_reference_t *)pyramid;
if (VX_SCALE_PYRAMID_ORB == scale)
{
vx_float32 orb_scale = c_orbscale[(i + 1) % 4];
w = (vx_uint32)ceilf((vx_float32)ref_w * orb_scale);
h = (vx_uint32)ceilf((vx_float32)ref_h * orb_scale);
if (0 == ((i + 1) % 4))
{
ref_w = w;
ref_h = h;
}
}
else
{
w = (vx_uint32)ceilf((vx_float32)w * scale);
h = (vx_uint32)ceilf((vx_float32)h * scale);
}
}
}
}
else
{
/* virtual images, but in a pyramid we really need to know the
* level 0 value. Dimensionless images don't work after validation
* time.
*/
}
}
else
{
status = VX_ERROR_NO_MEMORY;
}
return status;
}
vx_status vxAccessArrayRangeInt(vx_array arr, vx_size start, vx_size end, vx_size *pStride, void **ptr, vx_enum usage)
{
vx_status status = VX_FAILURE;
/* bad parameters */
if ((usage < VX_READ_ONLY) || (VX_READ_AND_WRITE < usage) ||
(ptr == NULL) ||
(start >= end) || (end > arr->num_items))
{
return VX_ERROR_INVALID_PARAMETERS;
}
/* determine if virtual before checking for memory */
if (arr->base.is_virtual == vx_true_e)
{
if (arr->base.is_accessible == vx_false_e)
{
/* User tried to access a "virtual" array. */
VX_PRINT(VX_ZONE_ERROR, "Can not access a virtual array\n");
return VX_ERROR_OPTIMIZED_AWAY;
}
/* framework trying to access a virtual image, this is ok. */
}
/* verify has not run or will not run yet. this allows this API to "touch"
* the array to create it.
*/
if (vxAllocateArray(arr) == vx_false_e)
{
return VX_ERROR_NO_MEMORY;
}
/* POSSIBILITIES:
* 1.) !*ptr && RO == COPY-ON-READ (make ptr=alloc)
* 2.) !*ptr && WO == MAP
* 3.) !*ptr && RW == MAP
* 4.) *ptr && RO||RW == COPY (UNLESS MAP)
*/
/* MAP mode */
if (*ptr == NULL)
{
if ((usage == VX_WRITE_ONLY) || (usage == VX_READ_AND_WRITE))
{
/*-- MAP --*/
status = VX_ERROR_NO_RESOURCES;
/* lock the memory */
if(vxSemWait(&arr->memory.locks[0]) == vx_true_e)
{
vx_size offset = start * arr->item_size;
*ptr = &arr->memory.ptrs[0][offset];
if (usage != VX_WRITE_ONLY)
{
vxReadFromReference(&arr->base);
}
vxIncrementReference(&arr->base, VX_EXTERNAL);
status = VX_SUCCESS;
}
}
else
{
/*-- COPY-ON-READ --*/
vx_size size = ((end - start) * arr->item_size);
vx_uint32 a = 0u;
vx_size *stride_save = calloc(1, sizeof(vx_size));
*stride_save = arr->item_size;
if (vxAddAccessor(arr->base.context, size, usage, *ptr, &arr->base, &a, stride_save) == vx_true_e)
{
vx_size offset;
*ptr = arr->base.context->accessors[a].ptr;
offset = start * arr->item_size;
memcpy(*ptr, &arr->memory.ptrs[0][offset], size);
vxReadFromReference(&arr->base);
vxIncrementReference(&arr->base, VX_EXTERNAL);
status = VX_SUCCESS;
}
else
{
status = VX_ERROR_NO_MEMORY;
vxAddLogEntry((vx_reference)arr, status, "Failed to allocate memory for COPY-ON-READ! Size="VX_FMT_SIZE"\n", size);
}
}
if ((status == VX_SUCCESS) && (pStride != NULL))
{
*pStride = arr->item_size;
}
}
/* COPY mode */
else
{
vx_size size = ((end - start) * arr->item_size);
vx_uint32 a = 0u;
vx_size *stride_save = calloc(1, sizeof(vx_size));
if (pStride == NULL) {
*stride_save = arr->item_size;
pStride = stride_save;
}
else {
*stride_save = *pStride;
}
if (vxAddAccessor(arr->base.context, size, usage, *ptr, &arr->base, &a, stride_save) == vx_true_e)
{
*ptr = arr->base.context->accessors[a].ptr;
status = VX_SUCCESS;
if ((usage == VX_WRITE_ONLY) || (usage == VX_READ_AND_WRITE))
{
if (vxSemWait(&arr->memory.locks[0]) == vx_false_e)
{
status = VX_ERROR_NO_RESOURCES;
}
}
if (status == VX_SUCCESS)
{
if (usage != VX_WRITE_ONLY)
{
int i;
vx_uint8 *pSrc, *pDest;
for (i = start, pDest = *ptr, pSrc = &arr->memory.ptrs[0][start * arr->item_size];
i < end;
i++, pDest += *pStride, pSrc += arr->item_size)
{
memcpy(pDest, pSrc, arr->item_size);
}
vxReadFromReference(&arr->base);
}
vxIncrementReference(&arr->base, VX_EXTERNAL);
}
}
else
{
status = VX_ERROR_NO_MEMORY;
vxAddLogEntry((vx_reference)arr, status, "Failed to allocate memory for COPY-ON-READ! Size="VX_FMT_SIZE"\n", size);
}
}
return status;
}
VX_API_ENTRY vx_status VX_API_CALL vxQueryParameter(vx_parameter parameter, vx_enum attribute, void *ptr, vx_size size)
{
vx_status status = VX_SUCCESS;
if (vxIsValidSpecificReference(¶meter->base, VX_TYPE_PARAMETER) == vx_true_e)
{
switch (attribute)
{
case VX_PARAMETER_ATTRIBUTE_DIRECTION:
if (VX_CHECK_PARAM(ptr, size, vx_enum, 0x3))
*(vx_enum *)ptr = parameter->kernel->signature.directions[parameter->index];
else
status = VX_ERROR_INVALID_PARAMETERS;
break;
case VX_PARAMETER_ATTRIBUTE_INDEX:
if (VX_CHECK_PARAM(ptr, size, vx_uint32, 0x3))
*(vx_uint32 *)ptr = parameter->index;
else
status = VX_ERROR_INVALID_PARAMETERS;
break;
case VX_PARAMETER_ATTRIBUTE_TYPE:
if (VX_CHECK_PARAM(ptr, size, vx_enum, 0x3))
*(vx_enum *)ptr = parameter->kernel->signature.types[parameter->index];
else
status = VX_ERROR_INVALID_PARAMETERS;
break;
case VX_PARAMETER_ATTRIBUTE_STATE:
if (VX_CHECK_PARAM(ptr, size, vx_enum, 0x3))
*(vx_enum *)ptr = (vx_enum)parameter->kernel->signature.states[parameter->index];
else
status = VX_ERROR_INVALID_PARAMETERS;
break;
case VX_PARAMETER_ATTRIBUTE_REF:
if (VX_CHECK_PARAM(ptr, size, vx_reference, 0x3))
{
if (parameter->node)
{
vx_reference_t *ref = parameter->node->parameters[parameter->index];
/* does this object have USER access? */
if (ref)
{
/*! \internal this could potentially allow the user to break
* a currently chosen optimization! We need to alert the
* system that if a write occurs to this data, put the graph
* into an unverified state.
*/
if (ref->external_count == 0)
ref->extracted = vx_true_e;
vxIncrementReference(ref, VX_EXTERNAL);
}
*(vx_reference *)ptr = (vx_reference)ref;
}
else
status = VX_ERROR_NOT_SUPPORTED;
}
else
status = VX_ERROR_INVALID_PARAMETERS;
break;
default:
status = VX_ERROR_NOT_SUPPORTED;
break;
}
}
else
{
status = VX_ERROR_INVALID_REFERENCE;
}
return status;
}
