int CVxParamDistribution::CompareFrame(int frameNumber)
{
// check if there is no user request to compare
if (m_fileNameCompare.length() < 1) return 0;
// make sure m_bufForRead is allocated
if (!m_bufForCompare) NULLPTR_CHECK(m_bufForCompare = new vx_uint32[m_numBins]);
// reading data from reference file
char fileName[MAX_FILE_NAME_LENGTH]; sprintf(fileName, m_fileNameCompare.c_str(), frameNumber);
FILE * fp = fopen(fileName, m_compareFileIsBinary ? "rb" : "r");
if (!fp) {
ReportError("ERROR: Unable to open: %s\n", fileName);
}
int status = ReadFileIntoBuffer(fp, m_bufForCompare);
fclose(fp);
if (status) ReportError("ERROR: distribution compare reference doesn't have enough data: %s\n", fileName);
// compare and report error if mismatched
vx_uint32 * bufRef = nullptr;
ERROR_CHECK(vxAccessDistribution(m_distribution, (void **)&bufRef, VX_READ_ONLY));
status = memcmp(bufRef, m_bufForCompare, m_numBins * sizeof(vx_uint32)) ? -1 : 0;
ERROR_CHECK(vxCommitDistribution(m_distribution, bufRef));
if (status) {
m_compareCountMismatches++;
printf("ERROR: distribution COMPARE MISMATCHED for %s with frame#%d of %s\n", GetVxObjectName(), frameNumber, fileName);
if (!m_discardCompareErrors) return -1;
}
else {
m_compareCountMatches++;
if (m_verbose) printf("OK: distribution COMPARE MATCHED for %s with frame#%d of %s\n", GetVxObjectName(), frameNumber, fileName);
}
return 0;
}
int CVxParamDistribution::ReadFrame(int frameNumber)
{
// check if there is no user request to read
if (m_fileNameRead.length() < 1) return 0;
// for single frame reads, there is no need to read it again
// as it is already read into the object
if (!m_fileNameForReadHasIndex && frameNumber != m_captureFrameStart) {
return 0;
}
// reading data from input file
char fileName[MAX_FILE_NAME_LENGTH]; sprintf(fileName, m_fileNameRead.c_str(), frameNumber);
FILE * fp = fopen(fileName, m_readFileIsBinary ? "rb" : "r");
if (!fp) {
if (frameNumber == m_captureFrameStart) {
ReportError("ERROR: Unable to open: %s\n", fileName);
}
else {
return 1; // end of sequence detected for multiframe sequences
}
}
vx_uint32 * data = nullptr;
ERROR_CHECK(vxAccessDistribution(m_distribution, (void **)&data, VX_WRITE_ONLY));
int status = ReadFileIntoBuffer(fp, data);
ERROR_CHECK(vxCommitDistribution(m_distribution, data));
fclose(fp);
return status;
}
int CVxParamDistribution::WriteFrame(int frameNumber)
{
// check if there is no user request to write
if (m_fileNameWrite.length() < 1) return 0;
// reading data from input file
char fileName[MAX_FILE_NAME_LENGTH]; sprintf(fileName, m_fileNameWrite.c_str(), frameNumber);
FILE * fp = fopen(fileName, m_writeFileIsBinary ? "wb" : "w");
if (!fp) ReportError("ERROR: Unable to create: %s\n", fileName);
vx_uint32 * data = nullptr;
ERROR_CHECK(vxAccessDistribution(m_distribution, (void **)&data, VX_READ_ONLY));
if (m_writeFileIsBinary)
{ // write in BINARY mode
fwrite(data, sizeof(data[0]), m_numBins, fp);
}
else
{ // write in ASCII mode
for (size_t i = 0; i < m_numBins; i++)
fprintf(fp, "%8d\n", data[i]);
}
ERROR_CHECK(vxCommitDistribution(m_distribution, data));
fclose(fp);
return 0;
}
static vx_status vxHistogramKernel(vx_node node, vx_reference *parameters, vx_uint32 num)
{
vx_status status = VX_FAILURE;
if (num == 2)
{
vx_image src_image = (vx_image)parameters[0];
vx_distribution dist = (vx_scalar)parameters[1];
vx_rectangle src_rect;
vx_imagepatch_addressing_t src_addr;
void *src_base = NULL, *dist_ptr = NULL;
vx_fourcc format = 0;
vx_uint32 y = 0, x = 0;
vx_uint32 offset = 0, range = 0, numBins = 0, window_size = 0;
vxQueryImage(src_image, VX_IMAGE_ATTRIBUTE_FORMAT, &format, sizeof(format));
vxQueryDistribution(dist, VX_DISTRIBUTION_ATTRIBUTE_BINS, &numBins, sizeof(numBins));
vxQueryDistribution(dist, VX_DISTRIBUTION_ATTRIBUTE_RANGE, &range, sizeof(range));
vxQueryDistribution(dist, VX_DISTRIBUTION_ATTRIBUTE_OFFSET, &offset, sizeof(offset));
vxQueryDistribution(dist, VX_DISTRIBUTION_ATTRIBUTE_WINDOW, &window_size, sizeof(window_size));
src_rect = vxGetValidRegionImage(src_image);
status = VX_SUCCESS;
status |= vxAccessImagePatch(src_image, src_rect, 0, &src_addr, &src_base);
status |= vxAccessDistribution(dist, &dist_ptr);
printf("distribution:%p bins:%u off:%u ws:%u range:%u\n", dist_ptr, numBins, offset, window_size, range);
if (status == VX_SUCCESS)
{
vx_int32 *dist_tmp = dist_ptr;
/* clear the distribution */
for (x = 0; x < numBins; x++)
{
dist_tmp[x] = 0;
}
for (y = 0; y < src_addr.dim_y; y++)
{
for (x = 0; x < src_addr.dim_x; x++)
{
if (format == FOURCC_U8)
{
vx_uint8 *src_ptr = vxFormatImagePatchAddress2d(src_base, x, y, &src_addr);
vx_uint8 pixel = *src_ptr;
if ((offset <= (vx_size)pixel) && ((vx_size)pixel < (offset+range)))
{
vx_size index = (pixel - (vx_uint16)offset) / window_size;
dist_tmp[index]++;
}
}
else if (format == FOURCC_U16)
{
vx_uint16 *src_ptr = vxFormatImagePatchAddress2d(src_base, x, y, &src_addr);
vx_uint16 pixel = *src_ptr;
if ((offset <= (vx_size)pixel) && ((vx_size)pixel < (offset+range)))
{
vx_size index = (pixel - (vx_uint16)offset) / window_size;
dist_tmp[index]++;
}
}
}
}
}
status |= vxCommitDistribution(dist, dist_ptr);
status |= vxCommitImagePatch(src_image, 0, 0, &src_addr, src_base);
vxReleaseParameter(&src_rect);
}
return status;
}
