int main(int argc, char* argv[])
{
shrQAStart(argc, argv);
try
{
std::string sFilename;
char *filePath = findFilePath("Lena.pgm", argv[0]);
if (filePath) {
sFilename = filePath;
} else {
printf("Error unable to find Lena.pgm\n");
shrQAFinishExit(argc, (const char **)argv, QA_FAILED);
}
// Parse the command line arguments for proper configuration
parseCommandLineArguments(argc, argv);
printfNPPinfo(argc, argv);
if (g_bQATest == false && (g_nDevice == -1) && argc > 1) {
sFilename = argv[1];
}
// if we specify the filename at the command line, then we only test sFilename[0].
int file_errors = 0;
std::ifstream infile(sFilename.data(), std::ifstream::in);
if (infile.good()) {
std::cout << "boxFilterNPP opened: <" << sFilename.data() << "> successfully!" << std::endl;
file_errors = 0;
infile.close();
} else {
std::cout << "boxFilterNPP unable to open: <" << sFilename.data() << ">" << std::endl;
file_errors++;
infile.close();
}
if (file_errors > 0) {
shrQAFinish(argc, (const char **)argv, QA_FAILED);
exit(EXIT_FAILURE);
}
std::string sResultFilename = sFilename;
std::string::size_type dot = sResultFilename.rfind('.');
if (dot != std::string::npos) sResultFilename = sResultFilename.substr(0, dot);
sResultFilename += "_boxFilter.pgm";
if (argc >= 3 && !g_bQATest)
sResultFilename = argv[2];
// declare a host image object for an 8-bit grayscale image
npp::ImageCPU_8u_C1 oHostSrc;
// load gray-scale image from disk
npp::loadImage(sFilename, oHostSrc);
// declare a device image and copy construct from the host image,
// i.e. upload host to device
npp::ImageNPP_8u_C1 oDeviceSrc(oHostSrc);
// create struct with box-filter mask size
NppiSize oMaskSize = {5, 5};
// create struct with ROI size given the current mask
NppiSize oSizeROI = {oDeviceSrc.width() - oMaskSize.width + 1, oDeviceSrc.height() - oMaskSize.height + 1};
// allocate device image of appropriatedly reduced size
npp::ImageNPP_8u_C1 oDeviceDst(oSizeROI.width, oSizeROI.height);
// set anchor point inside the mask to (0, 0)
NppiPoint oAnchor = {0, 0};
// run box filter
NppStatus eStatusNPP;
eStatusNPP = nppiFilterBox_8u_C1R(oDeviceSrc.data(), oDeviceSrc.pitch(),
oDeviceDst.data(), oDeviceDst.pitch(),
oSizeROI, oMaskSize, oAnchor);
NPP_ASSERT(NPP_NO_ERROR == eStatusNPP);
// declare a host image for the result
npp::ImageCPU_8u_C1 oHostDst(oDeviceDst.size());
// and copy the device result data into it
oDeviceDst.copyTo(oHostDst.data(), oHostDst.pitch());
saveImage(sResultFilename, oHostDst);
std::cout << "Saved image: " << sResultFilename << std::endl;
shrQAFinish(argc, (const char **)argv, QA_PASSED);
exit(EXIT_SUCCESS);
}
catch (npp::Exception & rException)
{
std::cerr << "Program error! The following exception occurred: \n";
std::cerr << rException << std::endl;
std::cerr << "Aborting." << std::endl;
shrQAFinish(argc, (const char **)argv, QA_FAILED);
exit(EXIT_FAILURE);
}
catch (...)
{
std::cerr << "Program error! An unknow type of exception occurred. \n";
std::cerr << "Aborting." << std::endl;
shrQAFinish(argc, (const char **)argv, QA_FAILED);
exit(EXIT_FAILURE);
return -1;
}
return 0;
}
int
main(int argc, char *argv[])
{
printf("%s Starting...\n\n", argv[0]);
try
{
std::string sFilename;
char *filePath = sdkFindFilePath("Lena.pgm", argv[0]);
if (filePath)
{
sFilename = filePath;
}
else
{
printf("Error unable to find Lena.pgm\n");
exit(EXIT_FAILURE);
}
// set your own FreeImage error handler
FreeImage_SetOutputMessage(FreeImageErrorHandler);
cudaDeviceInit(argc, (const char **)argv);
// Min spec is SM 1.0 devices
if (printfNPPinfo(argc, argv, 1, 0) == false)
{
cudaDeviceReset();
exit(EXIT_SUCCESS);
}
if (argc > 1)
{
sFilename = argv[1];
}
// if we specify the filename at the command line, then we only test sFilename
// otherwise we will check both sFilename[0,1]
int file_errors = 0;
std::ifstream infile(sFilename.data(), std::ifstream::in);
if (infile.good())
{
std::cout << "freeImageInteropNPP opened: <" << sFilename.data() << "> successfully!" << std::endl;
file_errors = 0;
infile.close();
}
else
{
std::cout << "freeImageInteropNPP unable to open: <" << sFilename.data() << ">" << std::endl;
file_errors++;
infile.close();
}
if (file_errors > 0)
{
exit(EXIT_FAILURE);
}
std::string sResultFilename = sFilename;
std::string::size_type dot = sResultFilename.rfind('.');
if (dot != std::string::npos)
{
sResultFilename = sResultFilename.substr(0, dot);
}
sResultFilename += "_boxFilterFII.pgm";
if (argc >= 3)
{
sResultFilename = argv[2];
}
FREE_IMAGE_FORMAT eFormat = FreeImage_GetFileType(sFilename.c_str());
// no signature? try to guess the file format from the file extension
if (eFormat == FIF_UNKNOWN)
{
eFormat = FreeImage_GetFIFFromFilename(sFilename.c_str());
}
NPP_ASSERT(eFormat != FIF_UNKNOWN);
// check that the plugin has reading capabilities ...
FIBITMAP *pBitmap;
if (FreeImage_FIFSupportsReading(eFormat))
{
pBitmap = FreeImage_Load(eFormat, sFilename.c_str());
}
NPP_ASSERT(pBitmap != 0);
// Dump the bitmap information to the console
std::cout << (*pBitmap) << std::endl;
// make sure this is an 8-bit single channel image
NPP_ASSERT(FreeImage_GetColorType(pBitmap) == FIC_MINISBLACK);
NPP_ASSERT(FreeImage_GetBPP(pBitmap) == 8);
unsigned int nImageWidth = FreeImage_GetWidth(pBitmap);
unsigned int nImageHeight = FreeImage_GetHeight(pBitmap);
unsigned int nSrcPitch = FreeImage_GetPitch(pBitmap);
unsigned char *pSrcData = FreeImage_GetBits(pBitmap);
int nSrcPitchCUDA;
Npp8u *pSrcImageCUDA = nppiMalloc_8u_C1(nImageWidth, nImageHeight, &nSrcPitchCUDA);
NPP_ASSERT_NOT_NULL(pSrcImageCUDA);
// copy image loaded via FreeImage to into CUDA device memory, i.e.
// transfer the image-data up to the GPU's video-memory
NPP_CHECK_CUDA(cudaMemcpy2D(pSrcImageCUDA, nSrcPitchCUDA, pSrcData, nSrcPitch,
nImageWidth, nImageHeight, cudaMemcpyHostToDevice));
// define size of the box filter
const NppiSize oMaskSize = {7, 7};
const NppiPoint oMaskAchnor = {0, 0};
// compute maximal result image size
const NppiSize oSizeROI = {nImageWidth - (oMaskSize.width - 1),
nImageHeight - (oMaskSize.height - 1)
};
// allocate result image memory
int nDstPitchCUDA;
Npp8u *pDstImageCUDA = nppiMalloc_8u_C1(oSizeROI.width, oSizeROI.height, &nDstPitchCUDA);
NPP_ASSERT_NOT_NULL(pDstImageCUDA);
NPP_CHECK_NPP(nppiFilterBox_8u_C1R(pSrcImageCUDA, nSrcPitchCUDA, pDstImageCUDA, nDstPitchCUDA,
oSizeROI, oMaskSize, oMaskAchnor));
// create the result image storage using FreeImage so we can easily
// save
FIBITMAP *pResultBitmap = FreeImage_Allocate(oSizeROI.width, oSizeROI.height, 8 /* bits per pixel */);
NPP_ASSERT_NOT_NULL(pResultBitmap);
unsigned int nResultPitch = FreeImage_GetPitch(pResultBitmap);
unsigned char *pResultData = FreeImage_GetBits(pResultBitmap);
NPP_CHECK_CUDA(cudaMemcpy2D(pResultData, nResultPitch, pDstImageCUDA, nDstPitchCUDA,
oSizeROI.width, oSizeROI.height, cudaMemcpyDeviceToHost));
// now save the result image
bool bSuccess;
bSuccess = FreeImage_Save(FIF_PGM, pResultBitmap, sResultFilename.c_str(), 0) == TRUE;
NPP_ASSERT_MSG(bSuccess, "Failed to save result image.");
//free nppiImage
nppiFree(pSrcImageCUDA);
nppiFree(pDstImageCUDA);
cudaDeviceReset();
exit(EXIT_SUCCESS);
}
catch (npp::Exception &rException)
{
std::cerr << "Program error! The following exception occurred: \n";
std::cerr << rException << std::endl;
std::cerr << "Aborting." << std::endl;
exit(EXIT_FAILURE);
}
catch (...)
{
std::cerr << "Program error! An unknow type of exception occurred. \n";
std::cerr << "Aborting." << std::endl;
exit(EXIT_FAILURE);
}
exit(EXIT_SUCCESS);
}
