int imFileFormatECW::Open(const char* file_name)
{
NCSError eError = NCScbmOpenFileView((char*)file_name, &this->pNCSFileView, NULL);
if (eError != NCS_SUCCESS)
{
if (eError == NCS_FILE_OPEN_ERROR ||
eError == NCS_FILE_NOT_FOUND ||
eError == NCS_FILE_INVALID)
return IM_ERR_OPEN;
else if (eError == NCS_FILE_OPEN_FAILED)
return IM_ERR_FORMAT;
else
return IM_ERR_ACCESS;
}
NCSFileType fileType = NCScbmGetFileType(this->pNCSFileView);
if (fileType == NCS_FILE_ECW)
strcpy(this->compression, "ECW");
else if (fileType == NCS_FILE_JP2)
strcpy(this->compression, "JPEG-2000");
else
return IM_ERR_COMPRESS;
this->image_count = 1;
return IM_ERR_NONE;
}
/*
* Class: com_ermapper_ecw_JNCSFile
* Method: ECWOpen
* Signature: (Ljava/lang/String;Z)I
*/
JNIEXPORT jint JNICALL Java_com_ermapper_ecw_JNCSFile_ECWOpen
(JNIEnv *pEnv, jobject JNCSFile, jstring Filename, jboolean bProgressive)
{
const char *pFilename = (*pEnv)->GetStringUTFChars(pEnv, Filename, (jboolean *)NULL);
NCSFileView *pNCSFileView = NULL;
NCSFileViewSetInfo *pNCSFileViewSetInfo = NULL;
NCSError nError;
if (bProgressive) {
nError = NCScbmOpenFileView((char *)pFilename, &pNCSFileView, NCSJNIRefreshCallback);
}
else {
nError = NCScbmOpenFileView((char *)pFilename, &pNCSFileView, NULL);
}
if (NCS_FAILED(nError)) {
// Return the short filename, since people dont like diplaying the full ecwp url
char *pProtocol, *pHost, *pECWFilename, *pShortFileName;
int nProtocolLength, nHostLength, nFilenameLength;
NCSecwNetBreakdownUrl((char *)pFilename, &pProtocol, &nProtocolLength,
&pHost, &nHostLength,
&pECWFilename, &nFilenameLength);
if (pECWFilename && nFilenameLength > 0 && (strstr(pECWFilename, "/") || strstr(pECWFilename, "\\")))
{
int len = strlen(pECWFilename), index = 0;
for (index=len; index > 0; index--)
{
pShortFileName = &pECWFilename[index];
if (pECWFilename[index] == '\\' || pECWFilename[index] == '/')
{
pShortFileName ++;
break;
}
}
}
else
{
pShortFileName = (char *)pFilename;
}
NCSFormatErrorText(NCS_FILE_OPEN_FAILED, pShortFileName, NCSGetLastErrorText(nError));
return NCS_FILE_OPEN_FAILED;
}
else {
NCSJNIInfo *pJNIInfo = NULL;
char *pMimeType = NULL;
NCSFileViewFileInfo *pNCSFileInfo = NULL;
nError = NCSCreateJNIInfoStruct(pEnv, JNCSFile, pNCSFileView, &pJNIInfo);
NCScbmGetViewFileInfo(pNCSFileView, &pNCSFileInfo);
// Set the properties in the actual Java object
(*pEnv)->SetIntField(pEnv, JNCSFile, pGlobalJNCSFieldIDs->jIDWidth, (jint)pNCSFileInfo->nSizeX );
(*pEnv)->SetIntField(pEnv, JNCSFile, pGlobalJNCSFieldIDs->jIDHeight, (jint)pNCSFileInfo->nSizeY );
(*pEnv)->SetIntField(pEnv, JNCSFile, pGlobalJNCSFieldIDs->jIDNumberOfBands, (jint)pNCSFileInfo->nBands);
(*pEnv)->SetDoubleField(pEnv, JNCSFile, pGlobalJNCSFieldIDs->jIDCompressionRate, (jdouble)pNCSFileInfo->nCompressionRate );
(*pEnv)->SetDoubleField(pEnv, JNCSFile, pGlobalJNCSFieldIDs->jIDCellIncrementX, (jdouble)pNCSFileInfo->fCellIncrementX );
(*pEnv)->SetDoubleField(pEnv, JNCSFile, pGlobalJNCSFieldIDs->jIDCellIncrementY, (jdouble)pNCSFileInfo->fCellIncrementY );
(*pEnv)->SetIntField(pEnv, JNCSFile, pGlobalJNCSFieldIDs->jIDCellSizeUnits, (jint)pNCSFileInfo->eCellSizeUnits);
(*pEnv)->SetDoubleField(pEnv, JNCSFile, pGlobalJNCSFieldIDs->jIDOriginX, (jdouble)pNCSFileInfo->fOriginX );
(*pEnv)->SetDoubleField(pEnv, JNCSFile, pGlobalJNCSFieldIDs->jIDOriginY, (jdouble)pNCSFileInfo->fOriginY );
(*pEnv)->SetObjectField(pEnv, JNCSFile, pGlobalJNCSFieldIDs->jIDDatum, (*pEnv)->NewStringUTF(pEnv, pNCSFileInfo->szDatum));
(*pEnv)->SetObjectField(pEnv, JNCSFile, pGlobalJNCSFieldIDs->jIDProjection, (*pEnv)->NewStringUTF(pEnv, pNCSFileInfo->szProjection));
(*pEnv)->SetObjectField(pEnv, JNCSFile, pGlobalJNCSFieldIDs->jIDFilename, Filename);
(*pEnv)->SetBooleanField(pEnv, JNCSFile, pGlobalJNCSFieldIDs->jIDIsOpen, JNI_TRUE);
(*pEnv)->SetLongField(pEnv, JNCSFile, pGlobalJNCSFieldIDs->jIDNativeDataPointer, (jlong)pJNIInfo);
(*pEnv)->SetIntField(pEnv, JNCSFile, pGlobalJNCSFieldIDs->jIDFileType, (jint)NCScbmGetFileType(pNCSFileView) );
pMimeType = NCScbmGetFileMimeType(pNCSFileView);
if( pMimeType ) {
(*pEnv)->SetObjectField(pEnv, JNCSFile, pGlobalJNCSFieldIDs->jIDFileMimeType, (*pEnv)->NewStringUTF(pEnv, pMimeType) );
NCSFree( pMimeType );
pMimeType = NULL;
} else {
(*pEnv)->SetObjectField(pEnv, JNCSFile, pGlobalJNCSFieldIDs->jIDFileMimeType, NULL );
}
}
(*pEnv)->ReleaseStringUTFChars(pEnv, Filename, (const char *)pFilename);
NCScbmGetViewInfo(pNCSFileView, &pNCSFileViewSetInfo);
pNCSFileViewSetInfo->pClientData = (void *)(*pEnv)->NewGlobalRef(pEnv, JNCSFile);
return NCS_SUCCESS;
}
int test_openview( char *szInputFilename, BOOLEAN bRandomReads, BOOLEAN bReportTime )
{
NCSFileView *pNCSFileView;
NCSFileViewFileInfo *pNCSFileInfo;
NCSError eError = NCS_SUCCESS;
UINT8 **p_p_output_line = NULL;
UINT8 *p_output_buffer = NULL;
UINT32 x_size, y_size, number_x, number_y;
UINT32 start_x, start_y, end_x, end_y;
UINT32 line;
int regions;
double total_pixels = 0.0;
UINT32 band;
UINT32 nBands;
UINT32 *band_list = NULL; /* list of individual bands to read, may be subset of actual bands */
clock_t start_time, mark_time;
printf("ECW READ EXAMPLE\n");
start_time = mark_time = clock();
/*
** Open the input NCSFileView
*/
eError = NCScbmOpenFileView(szInputFilename, &pNCSFileView, NULL);
if (eError != NCS_SUCCESS) {
printf("Could not open view for file:%s\n",szInputFilename);
printf("Error = %s\n", NCSGetErrorText(eError));
return(1);
}
NCScbmGetViewFileInfo(pNCSFileView, &pNCSFileInfo);
x_size = pNCSFileInfo->nSizeX;
y_size = pNCSFileInfo->nSizeY;
nBands = pNCSFileInfo->nBands;
printf("Input file is [%ld x %ld by %d bands]\n",
(long)x_size, (long)y_size, nBands);
// Have to set up the band list. Compatible with ER Mapper's method.
// In this example we always request all bands.
band_list = (UINT32 *) malloc(sizeof(UINT32) * nBands);
if( !band_list ) {
printf("Error - unable to malloc band list\n");
NCScbmCloseFileView(pNCSFileView);
return(1);
}
for( band = 0; band < nBands; band++ )
band_list[band] = band;
// All of image
start_x = 0; start_y = 0;
end_x = x_size - 1; end_y = y_size - 1;
number_x = x_size; number_y = y_size;
// do many region reads as tests
if( bRandomReads )
regions = 10;
else
regions = 100;
// regions = 5000;
while( regions -- ) {
{ // work out a random region to read
number_x = number_y = 512;
// define a random region and size
start_x = (UINT32) (RAND() * x_size);
end_x = (UINT32) (RAND() * (x_size - start_x)) + start_x;
start_y = (UINT32) (RAND() * y_size);
end_y = (UINT32) (RAND() * (y_size - start_y)) + start_y;
// make a square view area
if( (end_x - start_x) < MAX_WINDOW ) {
end_x = start_x + MAX_WINDOW;
if( end_x >= x_size ) { // [01]
start_x = x_size - MAX_WINDOW;
end_x = x_size-1;
}
}
if( (end_y - start_y) < MAX_WINDOW ) {
end_y = start_y + MAX_WINDOW;
if( end_y >= y_size ) { // [01]
start_y = y_size - MAX_WINDOW;
end_y = y_size-1;
}
}
if( (end_x - start_x) < (end_y - start_y) )
end_y = start_y + (end_x - start_x);
else
end_x = start_x + (end_y - start_y);
number_x = number_y = MAX_WINDOW;
}
printf("Region %4d: [%d,%d] to [%d,%d] for [%d,%d]\n",
regions, start_x, start_y, end_x, end_y, number_x, number_y);
eError = NCScbmSetFileView(pNCSFileView,
nBands, band_list,
start_x, start_y, end_x, end_y,
number_x, number_y);
if( eError != NCS_SUCCESS) {
printf("Error while setting file view to %d bands, TL[%d,%d] BR[%d,%d], Window size [%d,%d]\n",
nBands, start_x, start_y, end_x, end_y, number_x, number_y);
printf("Error = %s\n", NCSGetErrorText(eError));
NCScbmCloseFileView(pNCSFileView);
free(band_list);
return(1);
}
p_output_buffer = (UINT8 *) malloc( sizeof(UINT8) * number_x * nBands);
p_p_output_line = (UINT8 **) malloc( sizeof(UINT8 *) * nBands);
if( !p_p_output_line || !p_output_buffer) {
printf("Malloc error for output buffers\n");
NCScbmCloseFileView(pNCSFileView);
free(band_list);
if( p_p_output_line )
free((char *) p_p_output_line);
if( p_output_buffer )
free((char *) p_output_buffer);
return(1);
}
for(band = 0; band < nBands; band++ )
p_p_output_line[band] = p_output_buffer + (band * number_x);
/*
** Read each line of the compressed file
*/
for( line = 0; line < number_y; line++ ) {
NCSEcwReadStatus eReadStatus;
eReadStatus = NCScbmReadViewLineBIL( pNCSFileView, p_p_output_line);
if (eReadStatus != NCSECW_READ_OK) {
printf("Read line error at line %d\n",line);
printf("Status code = %d\n", eReadStatus);
NCScbmCloseFileView(pNCSFileView);
free(band_list);
free((char *) p_p_output_line);
free((char *) p_output_buffer);
return(1);
}
}
free((char *) p_p_output_line);
free((char *) p_output_buffer);
if( bReportTime ) {
double pixels, seconds, pixels_per_second, seconds_per_megapixel;
// time for this run
seconds = ((double) (clock() - mark_time)) / (double) CLOCKS_PER_SEC;
if( seconds == 0 )
seconds = 0.01;
pixels = (double) number_x * (double) number_y;
pixels_per_second = pixels / seconds;
seconds_per_megapixel = seconds / (pixels / 1000000.0);
printf("Region time:%5.2lf sec.%5.2lf Mpixels/sec. %4.2lf secs/Mpixel (%6.2lf Mpixels)\n",
seconds, pixels_per_second / 1000000, seconds_per_megapixel, (pixels/1000000));
// cumulative time
mark_time = clock();
seconds = ((double) (mark_time - start_time)) / (double) CLOCKS_PER_SEC;
if( seconds == 0 )
seconds = 0.001;
total_pixels += pixels;
pixels_per_second = total_pixels / seconds;
seconds_per_megapixel = seconds / (total_pixels / 1000000.0);
}
}
if( bReportTime ) {
double seconds, pixels_per_second, seconds_per_megapixel;
// cumulative time
mark_time = clock();
seconds = ((double) (mark_time - start_time)) / (double) CLOCKS_PER_SEC;
if( seconds == 0 )
seconds = 0.001;
pixels_per_second = total_pixels / seconds;
seconds_per_megapixel = seconds / (total_pixels / 1000000.0);
printf("ALL time:%5.2lf sec.%5.2lf Mpixels/sec. %4.2lf secs/Mpixel (%6.2lf Mpixels)\n",
seconds, pixels_per_second / 1000000, seconds_per_megapixel, total_pixels / 1000000);
}
// Make the second argument below TRUE if this is the last view of the file and you
// want the file closed, otherwise it will be kept open in the cache. This can
// sometimes be an problem when writing plugins.
//
NCScbmCloseFileViewEx(pNCSFileView, FALSE);
free(band_list);
return(0);
}
int main(int argc, char **argv)
{
NCSEcwCompressClient *pClient;
char *szInputFilename;
char *szOutputFilename;
NCSFileView *pNCSFileView;
NCSFileViewFileInfo *pNCSFileInfo;
UINT8 *pReadBuffer;
UINT8 **ppInputBandBufferArray;
NCSError eError;
INT32 nBand;
IEEE4 fTargetCompressionOverride = 0.0;
// Check user has specified a file on command line
if (argc < 3 || argc > 4) {
ReportError(
"Usage: %s InputFilename OutputFilename [Target Compression]",
argv[0]);
exit(1);
}
else {
szInputFilename = argv[1];
szOutputFilename = argv[2];
if (argc == 4) {
fTargetCompressionOverride = (float)atof(argv[3]);
}
}
// Initialize the ECW JPEG 2000 SDK libraries
NCSecwInit();
// Open the input file
eError = NCScbmOpenFileView(szInputFilename, &pNCSFileView, NULL);
if (eError != NCS_SUCCESS) {
ReportError("Could not open view for file:%s, Error = %s",
szInputFilename, NCSGetErrorText(eError));
exit(1);
}
// Get input file information
eError = NCScbmGetViewFileInfo(pNCSFileView, &pNCSFileInfo);
if (eError != NCS_SUCCESS) {
ReportError("Could not get file information for file:%s, Error = %s",
szInputFilename, NCSGetErrorText(eError));
exit(1);
}
// Set up the input band list and set the view
{
INT32 *pBandList;
pBandList = (UINT32 *)malloc(sizeof(UINT32) * pNCSFileInfo->nBands);
if (pBandList == NULL) {
ReportError("Unable to malloc band list.");
// NOTREACHED
}
for (nBand = 0; nBand < pNCSFileInfo->nBands; nBand++) {
pBandList[nBand] = nBand;
}
// Set the view we want to read (the whole file)
eError = NCScbmSetFileView(
pNCSFileView,
pNCSFileInfo->nBands,
pBandList,
0,
0,
pNCSFileInfo->nSizeX-1,
pNCSFileInfo->nSizeY-1,
pNCSFileInfo->nSizeX,
pNCSFileInfo->nSizeY);
if (eError != NCS_SUCCESS) {
ReportError("Error setting file view: %s",
NCSGetErrorText(eError));
exit(1);
}
}
// The read function wants an array of band buffers to store
// the data in. We allocate one block of memory and then point
// set up the band points to point to different locations within
// it. Alternatively, we could allocate a separate buffer for each
// band.
pReadBuffer = (UINT8 *)malloc(sizeof(UINT8) *
pNCSFileInfo->nSizeX *
pNCSFileInfo->nBands);
if (pReadBuffer == NULL) {
ReportError("Could not malloc read buffer");
exit(1);
}
ppInputBandBufferArray = (UINT8 **)malloc(sizeof(UINT8 *) *
pNCSFileInfo->nBands);
if (ppInputBandBufferArray == NULL) {
ReportError("Could not malloc band buffer array");
exit(1);
}
for (nBand = 0; nBand < pNCSFileInfo->nBands; nBand++) {
ppInputBandBufferArray[nBand] = pReadBuffer +
(nBand * pNCSFileInfo->nSizeX * sizeof(UINT8));
}
// Now set up the output side of the task. First we need to
// allocate and set up a client structure for the compression
if (pClient = NCSEcwCompressAllocClient()) {
NCSError eError;
ReadInfo CompressReadInfo;
// output filename
strcpy(pClient->szOutputFilename, szOutputFilename);
// Set up the target compression
if (fTargetCompressionOverride != 0.0) {
// User has specified a compression
pClient->fTargetCompression = fTargetCompressionOverride;
}
else {
// Use the same compression it was originally compressed with
pClient->fTargetCompression = (float)pNCSFileInfo->nCompressionRate;
}
// Set up the input dimensions
pClient->nInOutSizeX = pNCSFileInfo->nSizeX;
pClient->nInOutSizeY = pNCSFileInfo->nSizeY;
pClient->nInputBands = pNCSFileInfo->nBands;
// Currently there isn't a way to find out what type of file we have,
// so we make a guess based on the # of input bands.
if(pClient->nInputBands == 1) {
pClient->eCompressFormat = COMPRESS_UINT8;
}
else if(pClient->nInputBands == 3) {
pClient->eCompressFormat = COMPRESS_RGB;
}
else {
pClient->eCompressFormat = COMPRESS_MULTI;
}
// Set up optional projection information
pClient->fCellIncrementX = pNCSFileInfo->fCellIncrementX;
pClient->fCellIncrementY = pNCSFileInfo->fCellIncrementY;
pClient->fOriginX = pNCSFileInfo->fOriginX;
pClient->fOriginY = pNCSFileInfo->fOriginY;
pClient->eCellSizeUnits = pNCSFileInfo->eCellSizeUnits;
strcpy(pClient->szDatum, pNCSFileInfo->szDatum);
strcpy(pClient->szProjection, pNCSFileInfo->szProjection);
// Specify the callbacks and client data ptr
pClient->pReadCallback = ReadCallback;
pClient->pStatusCallback = StatusCallback;
pClient->pCancelCallback = CancelCallback;
// Set up client data for read callback
CompressReadInfo.pNCSFileView = pNCSFileView;
CompressReadInfo.ppInputBandBufferArray = ppInputBandBufferArray;
CompressReadInfo.nPercentComplete = 0;
CompressReadInfo.pErrorBuffer[0] = '\0';
pClient->pClientData = (void *)&CompressReadInfo;
// Open the compression
eError = NCSEcwCompressOpen(pClient, FALSE);
if (eError != NCS_SUCCESS) {
ReportError("NCSCompressOpen failed: %s", NCSGetErrorText(eError));
}
else {
// Opened OK, now do the compression
eError = NCSEcwCompress(pClient);
if (eError == NCS_COULDNT_READ_INPUT_LINE) {
ReportError("Compression error: %s (%s)",
NCSGetErrorText(eError), CompressReadInfo.pErrorBuffer);
}
else if (eError != NCS_SUCCESS) {
ReportError("Compression error: %s", NCSGetErrorText(eError));
}
else { // Compressed ok
// Close the compression
eError = NCSEcwCompressClose(pClient);
if (eError != NCS_SUCCESS) {
ReportError("NCSEcwCompressClose failed: %s",
NCSGetErrorText(eError));
}
// output stats
fprintf(stdout, "Target ratio: %.1lf\r\n"
"Actual ratio: %.1lf\r\n"
#ifdef WIN32
"Output size: %I64d bytes\r\n"
#else
"Output size: %lld bytes\r\n"
#endif
"Time taken: %.1lf seconds\r\n"
"Data Rate: %.1lf MB/s\r\n",
pClient->fTargetCompression,
pClient->fActualCompression,
pClient->nOutputSize,
pClient->fCompressionSeconds,
pClient->fCompressionMBSec);
fflush(stdout);
}
}
// Free client
NCSEcwCompressFreeClient(pClient);
}
else {
// Couldn't alloc client structure
ReportError("NCSEcwCompressAllocClient() failed!");
}
// Shutdown library resources
NCSecwShutdown();
fprintf(stdout, "Hit Enter to exit");
fflush(stdout);
fgetc(stdin);
return(0);
}
