--- /dev/null
+/*=========================================================================
+
+ Program: gdcm
+ Module: $RCSfile: TestWriteSimple.cxx,v $
+ Language: C++
+ Date: $Date: 2004/12/10 15:46:15 $
+ Version: $Revision: 1.7 $
+
+ Copyright (c) CREATIS (Centre de Recherche et d'Applications en Traitement de
+ l'Image). All rights reserved. See Doc/License.txt or
+ http://www.creatis.insa-lyon.fr/Public/Gdcm/License.html for details.
+
+ This software is distributed WITHOUT ANY WARRANTY; without even
+ the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
+ PURPOSE. See the above copyright notices for more information.
+
+=========================================================================*/
+
+/**
+ * Write a dicom file from nothing
+ * The written image is 256x256, 8 bits, unsigned char
+ * The image content is a horizontal grayscale from
+ *
+ */
+#include "gdcmHeader.h"
+#include "gdcmFile.h"
+
+#include <iostream>
+
+typedef struct
+{
+ int sizeX; // Size X of the image
+ int sizeY; // Size Y of the image
+ int sizeZ; // Size Z of the image
+ int components; // Number of components for a pixel
+ int componentSize; // Component size (in bits : 8, 16)
+ int componentUse ; // Component size (in bits)
+ int sign; // Sign of components
+ char writeMode; // Write mode
+ // - 'a' : ACR
+ // - 'e' : Explicit VR
+ // - 'i' : Implicit VR
+} Image;
+
+Image Images [] = {
+ {256, 256, 1, 1, 8, 8, 0, 'a'},
+ {256, 256, 1, 1, 8, 8, 0, 'e'},
+ {256, 256, 1, 1, 8, 8, 0, 'i'},
+
+ {512, 256, 1, 1, 8, 8, 0, 'a'},
+ {512, 256, 1, 1, 8, 8, 0, 'e'},
+ {512, 256, 1, 1, 8, 8, 0, 'i'},
+
+ {256, 512, 1, 1, 8, 8, 0, 'a'},
+ {256, 512, 1, 1, 8, 8, 0, 'e'},
+ {256, 512, 1, 1, 8, 8, 0, 'i'},
+
+ {256, 512, 1, 1, 16, 16, 0, 'a'},
+ {256, 512, 1, 1, 16, 16, 0, 'e'},
+ {256, 512, 1, 1, 16, 16, 0, 'i'},
+ {256, 512, 1, 1, 16, 16, 0, 'a'},
+ {256, 512, 1, 1, 16, 16, 0, 'e'},
+ {256, 512, 1, 1, 16, 16, 0, 'i'},
+ {0, 0, 1, 1, 8, 8, 0, 'i'} // to find the end
+};
+
+int WriteSimple(Image &img)
+{
+ std::string fileName = "TestWriteSimple.dcm";
+
+// Step 1 : Create the header of the image
+ std::cout << " 1...";
+ gdcm::Header *header = new gdcm::Header();
+ std::ostringstream str;
+
+ // Set the image size
+ str.str("");
+ str << img.sizeX;
+ header->ReplaceOrCreateByNumber(str.str(),0x0028,0x0011); // Columns
+
+ str.str("");
+ str << img.sizeY;
+ header->ReplaceOrCreateByNumber(str.str(),0x0028,0x0010); // Rows
+
+ if(img.sizeZ>1)
+ {
+ str.str("");
+ str << img.sizeZ;
+ header->ReplaceOrCreateByNumber(str.str(),0x0028,0x0008); // Number of Frames
+ }
+
+ // Set the pixel type
+ str.str("");
+ str << img.componentSize;
+ header->ReplaceOrCreateByNumber(str.str(),0x0028,0x0100); // Bits Allocated
+
+ str.str("");
+ str << img.componentUse;
+ header->ReplaceOrCreateByNumber(str.str(),0x0028,0x0101); // Bits Stored
+
+ str.str("");
+ str << img.componentSize - 1;
+ header->ReplaceOrCreateByNumber(str.str(),0x0028,0x0102); // High Bit
+
+ // Set the pixel representation
+ str.str("");
+ str << img.sign;
+ header->ReplaceOrCreateByNumber(str.str(),0x0028,0x0103); // Pixel Representation
+
+ // Set the samples per pixel
+ str.str("");
+ str << img.components;
+ header->ReplaceOrCreateByNumber(str.str(),0x0028,0x0002); // Samples per Pixel
+
+ if( !header->IsReadable() )
+ {
+ std::cout << "Failed\n"
+ << " Prepared image isn't readable\n";
+
+ delete header;
+ return 1;
+ }
+
+// Step 2 : Create the output image
+ std::cout << "2...";
+ if( img.componentSize%8 > 0 )
+ {
+ img.componentSize += 8-img.componentSize%8;
+ }
+ size_t size = img.sizeX * img.sizeY * img.sizeZ
+ * img.components * img.componentSize / 8;
+ unsigned char *imageData = new unsigned char[size];
+
+ // FIXME : find a best heuristic to create the image
+ unsigned char *tmp = imageData;
+ for(int k=0;k<img.sizeZ;k++)
+ {
+ for(int j=0;j<img.sizeY;j++)
+ {
+ for(int i=0;i<img.sizeX;i++)
+ {
+ for(int c=0;c<img.components;c++)
+ {
+ *tmp = j%256;
+ if( img.componentSize>8 )
+ {
+ *(tmp+1) = j/256;
+ }
+ tmp += img.componentSize * img.components/8;
+ }
+ }
+ }
+ }
+
+// Step 3 : Create the file of the image
+ std::cout << "3...";
+ gdcm::File *file = new gdcm::File(header);
+ file->SetImageData(imageData,size);
+
+// Step 4 : Set the writting mode and write the image
+ std::cout << "4...";
+
+ file->SetWriteModeToRaw();
+ switch (img.writeMode)
+ {
+ case 'a' : // Write an ACR file
+ file->SetWriteTypeToAcr();
+ break;
+
+ case 'e' : // Write a DICOM Explicit VR file
+ file->SetWriteTypeToDcmExplVR();
+ break;
+
+ case 'i' : // Write a DICOM Implicit VR file
+ file->SetWriteTypeToDcmImplVR();
+ break;
+
+ default :
+ std::cout << "Failed\n"
+ << " Write mode '"<<img.writeMode<<"' is undefined\n";
+
+ delete file;
+ delete header;
+ delete[] imageData;
+ return 1;
+ }
+
+ if( !file->Write(fileName) )
+ {
+ std::cout << "Failed\n"
+ << "File in unwrittable\n";
+
+ delete file;
+ delete header;
+ delete[] imageData;
+ return 1;
+ }
+
+// Step 5 : Read the written image
+ std::cout << "5...";
+ gdcm::File* reread = new gdcm::File( fileName );
+ if( !reread->GetHeader()->IsReadable() )
+ {
+ std::cerr << "Failed" << std::endl
+ << "Test::TestReadWriteReadCompare: Could not reread image "
+ << "written:" << fileName << std::endl;
+ delete header;
+ delete file;
+ delete reread;
+ return 1;
+ }
+
+// Step 6 : Compare to the written image
+ std::cout << "6...";
+ int dataSizeWritten = reread->GetImageDataSize();
+ uint8_t* imageDataWritten = reread->GetImageData();
+
+ // Test the image size
+ if (header->GetXSize() != reread->GetHeader()->GetXSize() ||
+ header->GetYSize() != reread->GetHeader()->GetYSize() ||
+ header->GetZSize() != reread->GetHeader()->GetZSize())
+ {
+ std::cout << "Failed" << std::endl
+ << " X Size differs: "
+ << "X: " << header->GetXSize() << " # "
+ << reread->GetHeader()->GetXSize() << " | "
+ << "Y: " << header->GetYSize() << " # "
+ << reread->GetHeader()->GetYSize() << " | "
+ << "Z: " << header->GetZSize() << " # "
+ << reread->GetHeader()->GetZSize() << std::endl;
+ delete header;
+ delete file;
+ delete reread;
+ delete[] imageData;
+
+ return 1;
+ }
+
+ // Test the data size
+ if (size != dataSizeWritten)
+ {
+ std::cout << "Failed" << std::endl
+ << " Pixel areas lengths differ: "
+ << size << " # " << dataSizeWritten << std::endl;
+ delete header;
+ delete file;
+ delete reread;
+ delete[] imageData;
+
+ return 1;
+ }
+
+ // Test the data's content
+ if (int res = memcmp(imageData, imageDataWritten, size) !=0)
+ {
+ (void)res;
+ std::cout << "Failed" << std::endl
+ << " Pixel differ (as expanded in memory)." << std::endl;
+ delete header;
+ delete file;
+ delete reread;
+ delete[] imageData;
+
+ return 1;
+ }
+
+ std::cout << "OK" << std::endl;
+
+ delete header;
+ delete file;
+ delete reread;
+ delete[] imageData;
+
+ return 0;
+}
+
+int TestWriteSimple(int argc, char* argv[])
+{
+ if (argc < 1)
+ {
+ std::cerr << "usage: \n"
+ << argv[0] << " (without parameters) " << std::endl
+ << std::endl;
+ return 1;
+ }
+
+ int ret;
+ int i=0;
+ while( Images[i].sizeX>0 && Images[i].sizeY>0 )
+ {
+ ret += WriteSimple(Images[i]);
+ i++;
+ }
+
+ return ret;
+}
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