//test case when dictionary is not full for decompression when index contain all zeroes only
void test_Decompression_given_1a1b1c_and_when_dictionary_is_not_full_should_decompress_correctly_into_abc()
{
int value;
OutStream out;
Dictionary *dict = initDictionary(10);
//create dictionary
value = AddDataToDictionary(dict, 1 , (unsigned int)('a') );
assert(value != 0);
value = AddDataToDictionary(dict, 1 , (unsigned int)('b') );
assert(value != 0);
value = AddDataToDictionary(dict, 1 , (unsigned int)('c') );
assert(value != 0);
//create test fixture
streamWriteBits_Expect(&out, (unsigned int)('a'), 8); //expect a here
streamWriteBits_Expect(&out, (unsigned int)('b'), 8); //expect b here
streamWriteBits_Expect(&out, (unsigned int)('c'), 8); //expect c here
//run
Decompression(&out, 1 , (unsigned int)('a'), dict);
Decompression(&out, 1 , (unsigned int)('b'), dict);
Decompression(&out, 1 , (unsigned int)('c'), dict);
}
int main(int argc, char * argv[])
{
fprintf(stdout, "This is bsc, Block Sorting Compressor. Version 3.0.0. 26 August 2011.\n");
fprintf(stdout, "Copyright (c) 2009-2011 Ilya Grebnov <*****@*****.**>.\n\n");
#if defined(_OPENMP) && defined(__INTEL_COMPILER)
kmp_set_warnings_off();
#endif
ProcessCommandline(argc, argv);
if (bsc_init(paramEnableLargePages ? LIBBSC_FEATURE_LARGEPAGES : LIBBSC_FEATURE_NONE) != LIBBSC_NO_ERROR)
{
fprintf(stderr, "\nInternal program error, please contact the author!\n");
exit(2);
}
switch (*argv[1])
{
case 'e' : case 'E' : Compression(argv); break;
case 'd' : case 'D' : Decompression(argv); break;
default : ShowUsage();
}
return 0;
}
U8 *Compression::Decompression(const char *from, int &lenght)
{
U8 *out = NULL;
int lenghtComp;
SDL_RWops *src = ged_SDL_RWFromFile(from, "rb");
if(!src) return NULL;
lenght = SDL_ReadLE32( src );
lenghtComp = SDL_ReadLE32( src );
out = new U8[lenght];
if(lenghtComp < lenght)
{
U8 *in = new U8[lenghtComp];
SDL_RWread(src, in, lenghtComp, 1);
Decompression(in, lenghtComp, out, lenght, false);
delete [] in;
}
else
{
SDL_RWread(src, out, lenght, 1);
lenght;
}
SDL_RWclose(src);
return out;
}
int main(int argc, char ** argv){
int fd_in, fd_out;
if(argc != 4){
fprintf(stderr, "Usage %s -[cd] <fichier entrée> <fichier sortie>\n", argv[0]);
return EXIT_FAILURE;
}
if(argv[1][0] != '-'){
fprintf(stderr, "Usage %s -[cd] <fichier entrée> <fichier sortie>\n", argv[0]);
return EXIT_FAILURE;
}
if(argv[1][1] == 'c'){ //Quand on veut compresser un fichier
if((fd_in = open(argv[2],O_RDONLY)) == -1){
perror("open fd_in");
exit(1);
}
if((fd_out = open(argv[3],O_WRONLY|O_CREAT|O_TRUNC,0600)) == -1){
perror("open fd_out");
exit(2);
}
Compression(fd_in,fd_out);
}else if(argv[1][1] == 'd'){ //Quand on veut decompresser un fichier
if((fd_in = open(argv[2],O_RDONLY)) == -1){
perror("open fd_in");
exit(1);
}
if((fd_out = open(argv[3],O_WRONLY|O_CREAT|O_TRUNC,0600)) == -1){
perror("open fd_out");
exit(2);
}
Decompression(fd_in,fd_out);
}else{
fprintf(stderr, "Usage %s -[cd] <fichier entrée> <fichier sortie>\n", argv[0]);
return EXIT_FAILURE;
}
return EXIT_SUCCESS;
}
bool Compression::Decompression(SDL_RWops* src, unsigned int lenghtComp, void *out, unsigned int lenght)
{
if(lenghtComp < lenght)
{
U8 *in = new U8[lenghtComp];
SDL_RWread(src, in, lenghtComp, 1);
bool res = Decompression(in, lenghtComp, out, lenght, false);
#ifdef _DEBUG
if(!res)
{
GLOUTPUT("*** Decompression error (%ld, %ld)\n", lenghtComp, lenght);
}
#endif
delete [] in;
return res;
}
return false;
}
int main(int argc, char *argv[])
{
int source = 0, target = 0, funcsion = 0, i;
clock_t start, end;
if (argc < 6) {
printf("\n程序参数输入有误!\n\n");
Instruction(argv[0]);
return EXIT_FAILURE;
}
start = clock();
//参数解析
for (i = 1; i < 6; ++i) {
if (!strcmp(argv[i], "-c")) {
funcsion = i;
} else if (!strcmp(argv[i], "-s")) {
if (i != 5) {
source = i + 1;
} else {
printf("参数输入有误!\n\n");
Instruction(argv[0]);
return EXIT_FAILURE;
}
} else if (!strcmp(argv[i], "-t")) {
if (i != 5) {
target = i + 1;
} else {
printf("参数输入有误!\n\n");
return EXIT_FAILURE;
}
} else if (!strcmp(argv[i], "-d")) {
funcsion = i;
}
}
if ((!strcmp(argv[funcsion], "-c")) && source != 0 && target != 0) {
if (Compression(argv[source], argv[target]) == 0) {
printf("压缩失败!\n");
return EXIT_FAILURE;
} else {
end = clock();
printf("压缩时间：%lf秒\n\n",((double)end - start) / CLOCKS_PER_SEC);
}
} else if ((!strcmp(argv[funcsion], "-d")) && source != 0 && target != 0) {
if (Decompression(argv[source], argv[target]) == 0) {
printf("解压缩失败!\n");
return EXIT_FAILURE;
} else {
end = clock();
printf("解压成功!\n");
printf("解压缩时间：%lf秒\n\n",((double)end - start) / CLOCKS_PER_SEC);
}
} else {
printf("命令错误!\n");
Instruction(argv[0]);
}
return EXIT_SUCCESS;
}
