1 // This may look like C code, but it is really -*- C++ -*- 2 // 3 // Copyright Bob Friesenhahn, 1999, 2000, 2003 4 // 5 // Test reading/writing BLOBs using Magick++ 6 // 7 8 #include <Magick++.h> 9 #include <string> 10 #include <iostream> 11 #include <fstream> 12 13 #if defined(MISSING_STD_IOS_BINARY) 14 # define IOS_IN_BINARY ios::in 15 #else 16 # define IOS_IN_BINARY ios::in | ios::binary 17 #endif 18 19 using namespace std; 20 21 using namespace Magick; 22 23 // A derived Blob class to exercise updateNoCopy() 24 class myBlob : public Blob 25 { 26 public: 27 // Construct from open binary stream 28 myBlob( ifstream &stream_ ) 29 : Blob() 30 { 31 unsigned char* blobData = new unsigned char[100000]; 32 char* c= reinterpret_cast<char *>(blobData); 33 size_t blobLen=0; 34 while( (blobLen< 100000) && stream_.get(*c) ) 35 { 36 c++; 37 blobLen++; 38 } 39 if ((!stream_.eof()) || (blobLen == 0)) 40 { 41 cout << "Failed to stream into blob!" << endl; 42 exit(1); 43 } 44 45 // Insert data into blob 46 updateNoCopy( reinterpret_cast<unsigned char*>(blobData), blobLen, 47 Blob::NewAllocator ); 48 } 49 }; 50 51 52 int main( int /*argc*/, char ** argv) 53 { 54 55 // Initialize ImageMagick install location for Windows 56 InitializeMagick(*argv); 57 58 int failures=0; 59 60 try 61 { 62 string srcdir(""); 63 if(getenv("SRCDIR") != 0) 64 srcdir = getenv("SRCDIR"); 65 66 string testimage; 67 68 // 69 // Test reading BLOBs 70 // 71 { 72 string signature(""); 73 { 74 Image image(srcdir + "test_image.miff"); 75 signature = image.signature(); 76 } 77 78 // Read raw data from file into BLOB 79 testimage = srcdir + "test_image.miff"; 80 ifstream in( testimage.c_str(), ios::in | IOS_IN_BINARY ); 81 if( !in ) 82 { 83 cout << "Failed to open file " << testimage << " for input!" << endl; 84 exit(1); 85 } 86 unsigned char* blobData = new unsigned char[100000]; 87 char* c=reinterpret_cast<char *>(blobData); 88 size_t blobLen=0; 89 while( (blobLen< 100000) && in.get(*c) ) 90 { 91 c++; 92 blobLen++; 93 } 94 if ((!in.eof()) || (blobLen == 0)) 95 { 96 cout << "Failed to read file " << testimage << " for input!" << endl; 97 exit(1); 98 } 99 in.close(); 100 101 // Construct Magick++ Blob 102 Blob blob(static_cast<const unsigned char*>(blobData), blobLen); 103 delete [] blobData; 104 105 // If construction of image fails, an exception should be thrown 106 { 107 // Construct with blob data only 108 Image image( blob ); 109 if ( image.signature() != signature ) 110 { 111 ++failures; 112 cout << "Line: " << __LINE__ 113 << " Image signature " 114 << image.signature() 115 << " != " 116 << signature << endl; 117 } 118 } 119 120 { 121 // Construct with image geometry and blob data 122 Image image( blob, Geometry(148,99)); 123 if ( image.signature() != signature ) 124 { 125 ++failures; 126 cout << "Line: " << __LINE__ 127 << " Image signature " 128 << image.signature() 129 << " != " 130 << signature << endl; 131 } 132 } 133 134 { 135 // Construct default image, and then read in blob data 136 Image image; 137 image.read( blob ); 138 if ( image.signature() != signature ) 139 { 140 ++failures; 141 cout << "Line: " << __LINE__ 142 << " Image signature " 143 << image.signature() 144 << " != " 145 << signature << endl; 146 } 147 } 148 149 { 150 // Construct default image, and then read in blob data with 151 // image geometry 152 Image image; 153 image.read( blob, Geometry(148,99) ); 154 if ( image.signature() != signature ) 155 { 156 ++failures; 157 cout << "Line: " << __LINE__ 158 << " Image signature " 159 << image.signature() 160 << " != " 161 << signature << endl; 162 } 163 } 164 165 } 166 167 // Test writing BLOBs 168 { 169 Blob blob; 170 string signature(""); 171 { 172 Image image(srcdir + "test_image.miff"); 173 image.magick("MIFF"); 174 image.write( &blob ); 175 signature = image.signature(); 176 } 177 { 178 Image image(blob); 179 if ( image.signature() != signature ) 180 { 181 ++failures; 182 cout << "Line: " << __LINE__ 183 << " Image signature " 184 << image.signature() 185 << " != " 186 << signature << endl; 187 image.display(); 188 } 189 } 190 191 } 192 // Test writing BLOBs via STL writeImages 193 { 194 Blob blob; 195 196 list<Image> first; 197 readImages( &first, srcdir + "test_image_anim.miff" ); 198 writeImages( first.begin(), first.end(), &blob, true ); 199 } 200 201 // Test constructing a BLOB from a derived class 202 { 203 204 string signature(""); 205 { 206 Image image(srcdir + "test_image.miff"); 207 signature = image.signature(); 208 } 209 210 // Read raw data from file into BLOB 211 testimage = srcdir + "test_image.miff"; 212 ifstream in( testimage.c_str(), ios::in | IOS_IN_BINARY ); 213 if( !in ) 214 { 215 cout << "Failed to open file for input!" << endl; 216 exit(1); 217 } 218 219 myBlob blob( in ); 220 in.close(); 221 222 Image image( blob ); 223 if ( image.signature() != signature ) 224 { 225 ++failures; 226 cout << "Line: " << __LINE__ 227 << " Image signature " 228 << image.signature() 229 << " != " 230 << signature << endl; 231 } 232 } 233 } 234 235 catch( Exception &error_ ) 236 { 237 cout << "Caught exception: " << error_.what() << endl; 238 return 1; 239 } 240 catch( exception &error_ ) 241 { 242 cout << "Caught exception: " << error_.what() << endl; 243 return 1; 244 } 245 246 if ( failures ) 247 { 248 cout << failures << " failures" << endl; 249 return 1; 250 } 251 252 return 0; 253 } 254 255 256
