Se quita el archivo temporal del jacu.c y se modifica para usar Huffman por Chunks...

[z.facultad/75.06/jacu.git] / src / jacu.c

diff --git a/src/jacu.c b/src/jacu.c
index ca93ae6aca2d98747a698fdba327c2d3e6388c95..f0c3444d55525813611fc874529a6b2eb607a932 100644 (file)
--- a/src/jacu.c
+++ b/src/jacu.c
@@ -18,12 +18,16 @@ int main(int argc, char* argv[])
        int zflag = 0;
        int tflag = 0;
        int qflag = 0;
+       int sflag = 0;
+       int mflag = 0;
        long int volumesize = 0;
        size_t pagesize = 32768; /* 32KB */
        int ch;
        t_BlockSort *bs;
+       HUFF_STATE *shuff;
+       char *staticmodel = NULL;
                        
-       while ((ch = getopt(argc, argv, "cdzt:q:")) != -1) { 
+       while ((ch = getopt(argc, argv, "scdzm:t:q:")) != -1) { 
                 
                switch (ch) { 
                        case 'c': cflag = 1; 
@@ -34,6 +38,13 @@ int main(int argc, char* argv[])
 
                        case 'z': zflag = 1; 
                                          break; 
+                       
+                       case 'm': mflag = 1;
+                                         staticmodel = optarg;
+                                         break; 
+                       
+                       case 's': sflag = 1;                                      
+                                         break;
 
                        case 't': tflag = 1; 
                                volumesize = atol(optarg);
@@ -66,13 +77,13 @@ int main(int argc, char* argv[])
                                }
                                break; 
 
-                       default: fprintf(stderr, "Usage: %s [-cdpt] sourcefile targetfile\n", argv[0]); 
+                       default: fprintf(stderr, "Usage: %s [-cdzs][-q blksize][-t volsize][-m modeldumpfile] source target\n", argv[0]); 
                                         return(2);
                }
        }
                
-       if ( (argc == 1) || (cflag & dflag) || !(cflag | dflag) || ((argc - optind) < 2) ) {
-               fprintf(stderr, "Usage: %s [-cdt] sourcefile targetfile\n", argv[0]); 
+       if ( (argc == 1) || (cflag & dflag) || !(cflag | dflag) || ((argc - optind) < 2) || (mflag & sflag)) {
+               fprintf(stderr, "Usage: %s [-cdzs][-q blksize][-t volsize][-m modeldumpfile] source target\n", argv[0]); 
                return (3);
        }
        if ((tflag) && (volumesize <= 0l)) {
@@ -85,24 +96,26 @@ int main(int argc, char* argv[])
        }
                
        if (cflag == 1) {
-               /* Comprimo */
-               /* No me gusta el tmpfile ... es para probar como anda todo junto */
-               FILE *fp, *fp_out;
+               /* Comprimo */          
+               FILE *fp;
                Uint32 i, j, total, k;
                char *mtf;
-               char *salida, *data, c;
+               char *salida, *data;
                char *z;
                int z_len;
-
+               
+               /* Preparo el compresor huffman */
+               if ((shuff = shuff_init_encoder_bychunk(argv[optind+1],volumesize*1024)) == NULL) return 0;
+               if (mflag == 1) shuff_loadmodel(shuff,staticmodel);
+               
+               /* Preparo el BS alocando mem para el K, el Block y su Size */
                data = malloc(sizeof(char)*pagesize);
-               /* Reservo lugar tambien para guardar el k y el tamaño  */
                salida = malloc(sizeof(char)*pagesize+sizeof(Uint32)*2);
                bs = bs_create(pagesize);
 
-               fp = fopen(argv[optind], "rb");
-               fp_out = fopen("tmp.comp", "wb");
+               /* Abrimos el archivo a comprimir y encodeamos bloques */
+               fp = fopen(argv[optind], "rb");                                         
 
-               /*c = fgetc(fp);*/
                total = 0;
                while (!feof(fp)) {
                        i = 0;
@@ -114,7 +127,7 @@ int main(int argc, char* argv[])
                        /* Saco un EOF que lee de mas */
                        if (i<pagesize) i--;
 
-                       /* Hago el BS */
+                       /* Aplico el BlockSorting */
                        bs_solve(data, salida, bs, &k, i);
 
                        /*printf("BS k=%ld\n", *(Uint32 *)(salida+sizeof(Uint32)));
@@ -127,6 +140,7 @@ int main(int argc, char* argv[])
                                        printf("(%c)", salida[ii+sizeof(Uint32)]);
                                printf("]\n");
                        }*/
+                       
                        /* Le aplico el MTF, salteo el tamaño del bloque para que no se pierda. */
                        mtf = jacu_mtf(salida+sizeof(Uint32), i+sizeof(Uint32), &z, &z_len);
 /*
@@ -146,44 +160,36 @@ int main(int argc, char* argv[])
                                zg_init(&zg);
                                /* TODO HACER LO MISMO QUE EN EL ELSE XXX */
                                for (j = 0; j < i; ++j)
-                                       if ((len = zg_group(&zg, buff, mtf[j]))) fwrite(buff, 1, len, fp_out);
+                                       if ((len = zg_group(&zg, buff, mtf[j]))) shuff_scanfreq_chunk(shuff,buff,len);
                        } else {
                                /* Guardo el PageSize */
-                               fwrite(salida, sizeof(Uint32), 1, fp_out);
-
+                               shuff_scanfreq_chunk(shuff,salida,sizeof(Uint32));
+                               
                                /* Guardo el Z len y el Z */
-                               fwrite(&z_len, sizeof(int), 1, fp_out);
-                               fwrite(z, z_len, sizeof(char), fp_out);
+                               shuff_scanfreq_chunk(shuff,(char*)&z_len,sizeof(int));
+                               shuff_scanfreq_chunk(shuff,z,z_len);                                                            
 
-                               /* Guardo la salida del MTF */
-                               /*printf("Despues de MTF : [");*/
-                               for(j=0; j<(i+sizeof(Uint32)); j++) {
-                                       fputc(mtf[j], fp_out);
-                       /*              putchar('(');
-                                       fputc(mtf[j], stdout);
-                                       putchar(')');*/
-                               }
-                               /*printf("]\n");*/
+                               /* Guardo la salida del MTF */                          
+                               shuff_scanfreq_chunk(shuff,mtf,i+sizeof(Uint32));                               
                        }
                        free(mtf);
                        free(z);
                }
 
-               printf("Total Bytes read = %ld\n", total);
                /* Limpiando */
-               fclose(fp);
-               fclose(fp_out);
+               fclose(fp);             
                bs_destroy(bs);
 
-               /* Comprimo con huffman */
-               i = shuff_encode_file("tmp.comp", argv[optind+1], volumesize);
-
-               /* borro el temporal */
-               remove("tmp.comp");
+               /* Comprimo con Huffman */              
+               shuff_encode_file(shuff);
+               if (sflag == 1) shuff_savemodel(shuff);
+               /* Shutdown Huffman */
+               shuff_deinit_encoder(shuff);
+               free(shuff);
 
                /* Muestro bpb */
                printf("Comprimido a %.04f bpb.\n", get_file_size(argv[optind+1])*8.0/get_file_size(argv[optind]));
-               return i;
+               return 0;
        }
        
        if (dflag == 1) { 
@@ -195,7 +201,11 @@ int main(int argc, char* argv[])
                char *z;
                int z_len;
 
-               shuff_decode_file(argv[optind], "tmp.comp"); /*argv[optind+1]);*/
+               if ((shuff = shuff_init_decoder(argv[optind],"tmp.comp")) == NULL) return 1;
+               shuff_decode_file(shuff);
+               shuff_deinit_decoder(shuff);
+               free(shuff);
+               
                fp_in = fopen("tmp.comp", "rb");
                fp_out = fopen(argv[optind+1], "wb");
 
@@ -203,7 +213,6 @@ int main(int argc, char* argv[])
                        block_size = 0;
                        fread(&block_size, sizeof(Uint32), 1, fp_in);
                        if (block_size > 0) {
-                               printf("PageSize = %ld\n", block_size);
                                fread(&z_len, sizeof(int), 1, fp_in);
                                z = malloc(sizeof(char)*z_len);
                                fread(z, z_len, sizeof(char), fp_in);
@@ -249,6 +258,7 @@ int main(int argc, char* argv[])
                                free(block);
                                free(orig);
                                free(mtf);
+                               free(z);
                        }
                }
                fclose(fp_in);
@@ -268,4 +278,3 @@ long get_file_size(const char* filename)
        fclose(file);
        return file_size;
 }
-