static VALUE Kernel_enum(VALUE self)
{
vx_kernel kernel = (vx_kernel)DATA_PTR(self);
vx_enum kenum = VX_KERNEL_INVALID;
vxQueryKernel(kernel, VX_QUERY_KERNEL_ENUM, (void *)&kenum, sizeof(kenum));
return INT2FIX(kenum);
}
static VALUE Kernel_name(VALUE self)
{
vx_kernel kernel = (vx_kernel)DATA_PTR(self);
const char name[VX_MAX_KERNEL_NAME];
vxQueryKernel(kernel, VX_QUERY_KERNEL_NAME, (void *)name, sizeof(name));
return rb_str_new2(name);
}
void example_explore_parameters(vx_context context, vx_kernel kernel)
{
vx_uint32 p, numParams = 0;
vx_graph graph = vxCreateGraph(context);
vx_node node = vxCreateGenericNode(graph, kernel);
vxQueryKernel(kernel, VX_KERNEL_PARAMETERS, &numParams, sizeof(numParams));
for (p = 0; p < numParams; p++)
{
//! [Getting the ref]
vx_parameter param = vxGetParameterByIndex(node, p);
vx_reference ref;
vxQueryParameter(param, VX_PARAMETER_REF, &ref, sizeof(ref));
//! [Getting the ref]
if (ref)
{
//! [Getting the type]
vx_enum type;
vxQueryParameter(param, VX_PARAMETER_TYPE, &type, sizeof(type));
/* cast the ref to the correct vx_<type>. Atomics are now vx_scalar */
//! [Getting the type]
}
vxReleaseParameter(¶m);
}
vxReleaseNode(&node);
vxReleaseGraph(&graph);
}
static VALUE Kernel_params(VALUE self)
{
vx_uint32 numParams = 0;
vx_kernel kernel = 0;
vx_status status = VX_FAILURE;
Check_Type(self, T_DATA);
kernel = (vx_kernel)DATA_PTR(self);
status = vxQueryKernel(kernel, VX_QUERY_KERNEL_NUMPARAMS, &numParams, sizeof(numParams));
REXT_PRINT("status = %d, numParams = %u\n", status, numParams);
return INT2FIX(numParams);
}
int main(int argc, char *argv[])
{
vx_status status = VX_SUCCESS;
vx_context context = vxCreateContext();
if (vxGetStatus((vx_reference)context) == VX_SUCCESS)
{
vx_char implementation[VX_MAX_IMPLEMENTATION_NAME];
vx_char *extensions = NULL;
vx_int32 m, modules = 0;
vx_uint32 k, kernels = 0;
vx_uint32 p, parameters = 0;
vx_uint32 a = 0;
vx_uint16 vendor, version;
vx_size size = 0;
vx_kernel_info_t *table = NULL;
// take each arg as a module name to load
for (m = 1; m < argc; m++)
{
if (vxLoadKernels(context, argv[m]) != VX_SUCCESS)
printf("Failed to load module %s\n", argv[m]);
else
printf("Loaded module %s\n", argv[m]);
}
vxPrintAllLog(context);
vxRegisterHelperAsLogReader(context);
vxQueryContext(context, VX_CONTEXT_VENDOR_ID, &vendor, sizeof(vendor));
vxQueryContext(context, VX_CONTEXT_VERSION, &version, sizeof(version));
vxQueryContext(context, VX_CONTEXT_IMPLEMENTATION, implementation, sizeof(implementation));
vxQueryContext(context, VX_CONTEXT_MODULES, &modules, sizeof(modules));
vxQueryContext(context, VX_CONTEXT_EXTENSIONS_SIZE, &size, sizeof(size));
printf("implementation=%s (%02x:%02x) has %u modules\n", implementation, vendor, version, modules);
extensions = malloc(size);
if (extensions)
{
vx_char *line = extensions, *token = NULL;
vxQueryContext(context, VX_CONTEXT_EXTENSIONS, extensions, size);
do {
token = strtok(line, " ");
if (token)
printf("extension: %s\n", token);
line = NULL;
} while (token);
free(extensions);
}
status = vxQueryContext(context, VX_CONTEXT_UNIQUE_KERNELS, &kernels, sizeof(kernels));
if (status != VX_SUCCESS) goto exit;
printf("There are %u kernels\n", kernels);
size = kernels * sizeof(vx_kernel_info_t);
table = malloc(size);
status = vxQueryContext(context, VX_CONTEXT_UNIQUE_KERNEL_TABLE, table, size);
for (k = 0; k < kernels && table != NULL && status == VX_SUCCESS; k++)
{
vx_kernel kernel = vxGetKernelByEnum(context, table[k].enumeration);
if (kernel && vxGetStatus((vx_reference)kernel) == VX_SUCCESS)
{
status = vxQueryKernel(kernel, VX_KERNEL_PARAMETERS, ¶meters, sizeof(parameters));
printf("\t\tkernel[%u]=%s has %u parameters (%d)\n",
table[k].enumeration,
table[k].name,
parameters,
status);
for (p = 0; p < parameters; p++)
{
vx_parameter parameter = vxGetKernelParameterByIndex(kernel, p);
vx_enum type = VX_TYPE_INVALID, dir = VX_INPUT;
vx_uint32 tIdx, dIdx;
status = VX_SUCCESS;
status |= vxQueryParameter(parameter, VX_PARAMETER_TYPE, &type, sizeof(type));
status |= vxQueryParameter(parameter, VX_PARAMETER_DIRECTION, &dir, sizeof(dir));
for (tIdx = 0; tIdx < dimof(parameter_names); tIdx++)
if (parameter_names[tIdx].tenum == type)
break;
for (dIdx = 0; dIdx < dimof(direction_names); dIdx++)
if (direction_names[dIdx].tenum == dir)
break;
if (status == VX_SUCCESS)
printf("\t\t\tparameter[%u] type:%s dir:%s\n", p,
parameter_names[tIdx].name,
direction_names[dIdx].name);
vxReleaseParameter(¶meter);
}
for (a = 0; a < dimof(attribute_names); a++)
{
switch (attribute_names[a].type)
{
case VX_TYPE_SIZE:
{
vx_size value = 0;
if (VX_SUCCESS == vxQueryKernel(kernel, attribute_names[a].tenum, &value, sizeof(value)))
printf("\t\t\tattribute[%u] %s = "VX_FMT_SIZE"\n",
attribute_names[a].tenum & VX_ATTRIBUTE_ID_MASK,
attribute_names[a].name,
value);
break;
}
case VX_TYPE_UINT32:
{
vx_uint32 value = 0;
if (VX_SUCCESS == vxQueryKernel(kernel, attribute_names[a].tenum, &value, sizeof(value)))
printf("\t\t\tattribute[%u] %s = %u\n",
attribute_names[a].tenum & VX_ATTRIBUTE_ID_MASK,
attribute_names[a].name,
value);
break;
}
default:
break;
}
}
vxReleaseKernel(&kernel);
}
else
{
printf("ERROR: kernel %s is invalid (%d) !\n", table[k].name, status);
}
}
for (m = 1; m < argc; m++)
{
if (vxUnloadKernels(context, argv[m]) != VX_SUCCESS)
printf("Failed to unload module %s\n", argv[m]);
else
printf("Unloaded module %s\n", argv[m]);
}
exit:
if (table) free(table);
vxReleaseContext(&context);
}
return 0;
}
