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no loading between levels, many improvements in code

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Ondřej Novák 2025-01-31 18:54:59 +01:00
parent 77f1700902
commit a8a87d514c
55 changed files with 628 additions and 763 deletions
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26
libs/mgifmem.c
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@ -74,9 +74,9 @@ void mgif_install_proc(MGIF_PROC proc)
show_proc=proc;
}
struct mgif_header load_mgif_header(char **mgif) {
struct mgif_header load_mgif_header(const char **mgif) {
struct mgif_header r;
char *iter = *mgif;
const char *iter = *mgif;
memcpy(r.sign, iter, 4); iter+=4;
memcpy(r.year, iter, 2); iter+=2;
r.eof = *iter++;
@ -90,9 +90,9 @@ struct mgif_header load_mgif_header(char **mgif) {
return r;
}
void *open_mgif(void *mgif) //vraci ukazatel na prvni frame
const void *open_mgif(const void *mgif) //vraci ukazatel na prvni frame
{
char *c = mgif;
const char *c = mgif;
struct mgif_header mgh = load_mgif_header(&c);
if (strncmp(mgh.sign,MGIF,4)) return NULL;
@ -111,9 +111,9 @@ void close_mgif(void) //dealokuje buffery pro prehravani
}
int input_code(void *source,int32_t *bitepos,int bitsize,int mask)
int input_code(const void *source,int32_t *bitepos,int bitsize,int mask)
{
uint8_t *esi = source; // mov esi,source
const uint8_t *esi = source; // mov esi,source
int32_t *edi = bitepos; // mov edi,bitepos
int ebx = bitsize; // mov ebx,bitsize
int edx = mask; // mov edx,mask
@ -276,7 +276,7 @@ end:
*/
}
void lzw_decode(void *source,char *target)
void lzw_decode(const void *source,char *target)
{
int32_t bitpos=0;
int code;
@ -332,7 +332,7 @@ typedef struct chunk_header_t {
uint8_t type;
} CHUNK_HEADER_T;
CHUNK_HEADER_T read_chunk_header(char **iter) {
CHUNK_HEADER_T read_chunk_header(const char **iter) {
CHUNK_HEADER_T ret;
ret.type = *(uint8_t *)(*iter)++;
ret.size = *(uint8_t *)(*iter)++;
@ -341,7 +341,7 @@ CHUNK_HEADER_T read_chunk_header(char **iter) {
return ret;
}
FRAME_HEADER_T read_frame_header(char **iter) {
FRAME_HEADER_T read_frame_header(const char **iter) {
FRAME_HEADER_T ret;
ret.count = *(uint8_t *)(*iter)++;
ret.size = *(uint8_t *)(*iter)++;
@ -350,11 +350,13 @@ FRAME_HEADER_T read_frame_header(char **iter) {
return ret;
}
void *mgif_play(void *mgif) //dekoduje a zobrazi frame
const void *mgif_play(const void *mgif) //dekoduje a zobrazi frame
{
char *pf,*pc,*ff;
const char *pf;
const char *pc;
char *ff;
// int acts,size,act,csize;
void *scr_sav;
const void *scr_sav;
int scr_act=-1;