"completo" descompresor ... se pierde todos los datos :-/

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

diff --git a/src/jacu.c b/src/jacu.c
index fc4188f0f0b2916c7ab52734c0a35bc7bd4709cf..ee98a059412c87a1e3c7b66b2ee8b9fd5d5c0d15 100644 (file)
--- a/src/jacu.c
+++ b/src/jacu.c
@@ -8,6 +8,8 @@
 #include <stdio.h>
 #include <unistd.h>
 
 #include <stdio.h>
 #include <unistd.h>
 

+long get_file_size(const char* filename);
+

 int main(int argc, char* argv[])
 {      
        int cflag = 0;
 int main(int argc, char* argv[])
 {      
        int cflag = 0;


@@ -62,12 +64,15 @@ int main(int argc, char* argv[])
                /* Comprimo */
                /* No me gusta el tmpfile ... es para probar como anda todo junto */
                FILE *fp, *fp_out;
                /* Comprimo */
                /* No me gusta el tmpfile ... es para probar como anda todo junto */
                FILE *fp, *fp_out;

-               unsigned long int i, j, total, k;
+               Uint32 i, j, total, k;

                char *mtf;
                char *salida, *data, c;
                char *mtf;
                char *salida, *data, c;

+               char *z;
+               int z_len;
+

                data = malloc(sizeof(char)*pagesize);
                /* Reservo lugar tambien para guardar el k y el tamaño  */
                data = malloc(sizeof(char)*pagesize);
                /* Reservo lugar tambien para guardar el k y el tamaño  */

-               salida = malloc(sizeof(char)*(pagesize)+sizeof(unsigned long int)*2);
+               salida = malloc(sizeof(char)*(pagesize)+sizeof(Uint32)*2);

                bs = bs_create(pagesize);
 
                fp = fopen(argv[optind], "rb");
                bs = bs_create(pagesize);
 
                fp = fopen(argv[optind], "rb");


@@ -87,24 +92,32 @@ int main(int argc, char* argv[])
                        bs_solve(data, salida, bs, &k, i);
 
                        /* Le aplico el MTF, salteo el tamaño del bloque para que no se pierda. */
                        bs_solve(data, salida, bs, &k, i);
 
                        /* Le aplico el MTF, salteo el tamaño del bloque para que no se pierda. */

-                       mtf = jacu_mtf(salida+sizeof(unsigned long int), i+sizeof(unsigned long int));
+                       mtf = jacu_mtf(salida+sizeof(Uint32), i+sizeof(Uint32), &z, &z_len);

 
                        /* Si me lo piden, aplico ZG. */
 
                        /* Si me lo piden, aplico ZG. */

-                       if (zflag)
-                       {
+                       if (zflag) {

                                size_t len;
                                char buff[2];
                                ZG zg;
                                zg_init(&zg);
                                size_t len;
                                char buff[2];
                                ZG zg;
                                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);
                                for (j = 0; j < i; ++j)
                                        if ((len = zg_group(&zg, buff, mtf[j]))) fwrite(buff, 1, len, fp_out);

-                       }
-                       else
-                       {
-                               for(j=0; j<i; j++)
+                       } else {
+                               /* Guardo el PageSize */
+                               for(j=0; j<sizeof(Uint32); j++)
+                                       fputc(mtf[j], fp_out);
+
+                               /* Guardo el Z len y el Z */
+                               fwrite(&z_len, sizeof(int), 1, fp_out);
+                               fwrite(z, z_len, sizeof(char), fp_out);
+
+                               /* Guardo la salida del MTF */
+                               for(j=sizeof(Uint32); j<i; j++)

                                        fputc(mtf[j], fp_out);
                        }
                        free(mtf);
                                        fputc(mtf[j], fp_out);
                        }
                        free(mtf);

+                       free(z);

                }
 
                /* Limpiando */
                }
 
                /* Limpiando */


@@ -117,34 +130,42 @@ int main(int argc, char* argv[])
 
                /* borro el temporal */
                unlink("tmp.comp");
 
                /* borro el temporal */
                unlink("tmp.comp");

+
+               /* Muestro bpb */
+               printf("Comprimido a %.04f bpb.\n", get_file_size(argv[optind+1])*8.0/get_file_size(argv[optind]));

                return i;
        }
        
        if (dflag == 1) { 
                /* Descomprimo */
                FILE *fp_out;
                return i;
        }
        
        if (dflag == 1) { 
                /* Descomprimo */
                FILE *fp_out;

-               VFILE *fp_in;
-               unsigned long int block_size, k;
+               FILE *fp_in;
+               Uint32 block_size, k;

                char *block, *mtf, *orig;
                char *block, *mtf, *orig;

-               int *pos;
+               char *z;
+               int z_len;

 
                shuff_decode_file(argv[optind], "tmp.comp"); /*argv[optind+1]);*/
 
                shuff_decode_file(argv[optind], "tmp.comp"); /*argv[optind+1]);*/

-               fp_in = vfopen("tmp.comp", "r", 0);
+               fp_in = fopen("tmp.comp", "rb");

                fp_out = fopen(argv[optind+1], "wb");
 
                fp_out = fopen(argv[optind+1], "wb");
 

-               while (!vfeof(fp_in)) {
+               while (!feof(fp_in)) {

                        block_size = 0;
                        block_size = 0;

-                       vfread(&block_size, sizeof(unsigned long int), 1, fp_in);
+                       fread(&block_size, sizeof(Uint32), 1, fp_in);
+                       fread(&z_len, sizeof(int), 1, fp_in);
+                       z = malloc(sizeof(char)*z_len);
+                       fread(z, z_len, sizeof(char), fp_in);
+

                        if (block_size > 0) {
                        if (block_size > 0) {

-                               block = malloc((block_size+sizeof(unsigned long int))*sizeof(char));
+                               block = malloc(block_size*sizeof(char)+sizeof(Uint32));

                                orig = malloc(block_size*sizeof(char));
                                orig = malloc(block_size*sizeof(char));

-                               vfread(block, block_size, sizeof(char), fp_in);
+                               fread(block, block_size, sizeof(char), fp_in);

 
 

-                               mtf = jacu_mtf_inv(block, /*XXX NO LO TENGO XXX */pos, block_size);
+                               mtf = jacu_mtf_inv(z, block, block_size);

 
 

-                               memcpy(&k, block, sizeof(unsigned long int));
+                               memcpy(&k, block, sizeof(Uint32));

 
 

-                               bs_restore(orig, block+sizeof(unsigned long int), k, block_size);
+                               bs_restore(orig, block+sizeof(Uint32), k, block_size);

 
                                fwrite(orig, block_size, sizeof(char), fp_out);
                                free(block);
 
                                fwrite(orig, block_size, sizeof(char), fp_out);
                                free(block);


@@ -152,9 +173,21 @@ int main(int argc, char* argv[])
                                free(mtf);
                        }
                }
                                free(mtf);
                        }
                }

-               vfclose(fp_in);
+               fclose(fp_in);

                fclose(fp_out);
        }
 
        return 0;
 }
                fclose(fp_out);
        }
 
        return 0;
 }

+
+long get_file_size(const char* filename)
+{
+       FILE* file;
+       long  file_size;
+
+       if (!(file = fopen(filename, "ab"))) return -1;
+       file_size = ftell(file);
+       fclose(file);
+       return file_size;
+}
+