static VALUE Graph_nodes(VALUE self)
{
vx_graph graph = 0;
vx_uint32 numNodes = 0;
vx_status status;
Check_Type(self, T_DATA);
graph = (vx_graph)DATA_PTR(self);
status = vxQueryGraph(graph, VX_QUERY_GRAPH_NUMNODES, &numNodes, sizeof(numNodes));
REXT_PRINT("status = %d, numNodes = %u\n", status, numNodes);
return INT2FIX(numNodes);
}
/*! \brief The graph factory example.
* \ingroup group_example
*/
int main(int argc, char *argv[])
{
vx_status status = VX_SUCCESS;
vx_context context = vxCreateContext();
if (context)
{
vx_image images[] = {
vxCreateImage(context, 640, 480, VX_DF_IMAGE_U8),
vxCreateImage(context, 640, 480, VX_DF_IMAGE_S16),
};
vx_graph graph = vxGraphFactory(context, VX_GRAPH_FACTORY_EDGE);
if (graph)
{
vx_uint32 p, num = 0;
status |= vxQueryGraph(graph, VX_GRAPH_ATTRIBUTE_NUMPARAMETERS, &num, sizeof(num));
if (status == VX_SUCCESS)
{
printf("There are %u parameters to this graph!\n", num);
for (p = 0; p < num; p++)
{
vx_parameter param = vxGetGraphParameterByIndex(graph, p);
if (param)
{
vx_enum dir = 0;
vx_enum type = 0;
status |= vxQueryParameter(param, VX_PARAMETER_ATTRIBUTE_DIRECTION, &dir, sizeof(dir));
status |= vxQueryParameter(param, VX_PARAMETER_ATTRIBUTE_TYPE, &type, sizeof(type));
printf("graph.parameter[%u] dir:%d type:%08x\n", p, dir, type);
vxReleaseParameter(¶m);
}
else
{
printf("Invalid parameter retrieved from graph!\n");
}
}
status |= vxSetGraphParameterByIndex(graph, 0, (vx_reference)images[0]);
status |= vxSetGraphParameterByIndex(graph, 1, (vx_reference)images[1]);
}
status |= vxVerifyGraph(graph);
if (status == VX_SUCCESS)
{
status = vxProcessGraph(graph);
if (status == VX_SUCCESS)
{
printf("Ran Graph!\n");
}
}
vxReleaseGraph(&graph);
}
else
{
printf("Failed to create graph!\n");
}
vxReleaseContext(&context);
}
else
{
printf("failed to create context!\n");
}
return status;
}
int main(int argc, char *argv[]) {
vx_status status = VX_FAILURE;
vx_context context = vxCreateContext();
if (argc < 2) {
usage(argv[0]);
goto relCtx;
}
vx_char *srcfilename = argv[1];
printf("src img: %s\n", srcfilename);
FILE *fp = fopen(srcfilename, "r");
if (!fp) {
goto relCtx;
}
char pgmstr[1024];
unsigned int n;
n = fread(pgmstr, 1, sizeof(pgmstr), fp);
if (n != sizeof(pgmstr)) {
goto relClose;
}
const char delim = '\n';
const char *token = NULL;
unsigned int width, height;
// PGM P5 magic string
token = strtok(pgmstr, &delim);
// PGM author
token = strtok(NULL, &delim);
// PGM image size
token = strtok(NULL, &delim);
sscanf(token, "%u %u", &width, &height);
printf("width:%u height:%u\n", width, height);
status = vxGetStatus((vx_reference)context);
if (status != VX_SUCCESS) {
fprintf(stderr, "error: vxCreateContext\n");
goto relClose;
}
vx_rectangle_t rect = {1, 1, width + 1, height + 1};
vx_uint32 i = 0;
vx_image images[] = {
vxCreateImage(context, width + 2, height + 2, VX_DF_IMAGE_U8), // 0:input
vxCreateImageFromROI(images[0], &rect), // 1:ROI input
vxCreateImage(context, width, height, VX_DF_IMAGE_U8), // 2:box
vxCreateImage(context, width, height, VX_DF_IMAGE_U8), // 3:gaussian
vxCreateImage(context, width, height, VX_DF_IMAGE_U8), // 4:alpha
vxCreateImage(context, width, height, VX_DF_IMAGE_S16),// 5:add
};
vx_float32 a = 0.5f;
vx_scalar alpha = vxCreateScalar(context, VX_TYPE_FLOAT32, &a);
status |= vxLoadKernels(context, "openvx-tiling");
status |= vxLoadKernels(context, "openvx-debug");
if (status != VX_SUCCESS) {
fprintf(stderr, "error: vxLoadKernels %d\n", status);
goto relImg;
}
vx_graph graph = vxCreateGraph(context);
status = vxGetStatus((vx_reference)context);
if (status != VX_SUCCESS) {
fprintf(stderr, "error: vxGetStatus\n");
goto relKern;
}
ax_node_t axnodes[] = {
{ vxFReadImageNode(graph, srcfilename, images[1]), "Read" },
{ vxTilingBoxNode(graph, images[1], images[2], 5, 5), "Box" },
{ vxFWriteImageNode(graph, images[2], "ot_box.pgm"), "Write" },
{ vxTilingGaussianNode(graph, images[1], images[3]), "Gaussian" },
{ vxFWriteImageNode(graph, images[3], "ot_gauss.pgm"), "Write" },
{ vxTilingAlphaNode(graph, images[1], alpha, images[4]), "Alpha" },
{ vxFWriteImageNode(graph, images[4], "ot_alpha.pgm"), "Write" },
{ vxTilingAddNode(graph, images[1], images[4], images[5]), "Add" },
{ vxFWriteImageNode(graph, images[5], "ot_add.pgm"), "Write" },
};
for (i = 0; i < dimof(axnodes); i++) {
if (axnodes[i].node == 0) {
fprintf(stderr, "error: Failed to create node[%u]\n", i);
status = VX_ERROR_INVALID_NODE;
goto relNod;
}
}
status = vxVerifyGraph(graph);
if (status != VX_SUCCESS) {
fprintf(stderr, "error: vxVerifyGraph %d\n", status);
goto relNod;
}
status = vxProcessGraph(graph);
if (status != VX_SUCCESS) {
fprintf(stderr, "error: vxProcessGraph %d\n", status);
goto relNod;
}
// perf timings
vx_perf_t perf_node;
vx_perf_t perf_graph;
vxQueryGraph(graph, VX_GRAPH_ATTRIBUTE_PERFORMANCE, &perf_graph, sizeof(perf_graph));
axPrintPerf("Graph", &perf_graph);
for (i = 0; i < dimof(axnodes); ++i) {
vxQueryNode(axnodes[i].node, VX_NODE_ATTRIBUTE_PERFORMANCE, &perf_node, sizeof(perf_node));
axPrintPerf(axnodes[i].name, &perf_node);
}
relNod:
for (i = 0; i < dimof(axnodes); i++) {
vxReleaseNode(&axnodes[i].node);
}
vxReleaseGraph(&graph);
relKern:
relImg:
for (i = 0; i < dimof(images); i++) {
vxReleaseImage(&images[i]);
}
relClose:
fclose(fp);
relCtx:
vxReleaseContext(&context);
printf("%s::main() returns = %d\n", argv[0], status);
return (int)status;
}
