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fceux
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support loading TAS savestate

This commit is contained in:
zeromus 2008-05-24 22:18:16 +00:00
parent e524818f1e
commit c24c415d2a
1 changed files with 82 additions and 45 deletions
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123
src/movie.cpp
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@ -89,18 +89,6 @@ int justAutoConverted = 0; //PLEASE REMOVE ME
/* Cache variables used for playback. */
static uint32 nextts = 0;
static int32 nextd = 0;
SFORMAT FCEUMOV_STATEINFO[]={
{ joop, 4,"JOOP"},
{ &framets, 4|FCEUSTATE_RLSB, "FTS "},
{ &nextts, 4|FCEUSTATE_RLSB, "NXTS"},
{ &nextd, 4|FCEUSTATE_RLSB, "NXTD"},
{ &frameptr, 4|FCEUSTATE_RLSB, "FPTR"},
{ &framecount, 4|FCEUSTATE_RLSB, "FCNT"},
{ 0 }
};
static int MovieShow = 0;
@ -122,12 +110,16 @@ static enum EMOVIEMODE
FILE* fpRecordingMovie = 0;
int currFrameCounter;
SFORMAT FCEUMOV_STATEINFO[]={
{ &currFrameCounter, 4|FCEUSTATE_RLSB, "FCNT"},
{ 0 }
};
int FCEUMOV_GetFrame(void)
{
return currFrameCounter;
}
bool FCEUMOV_ShouldPause(void)
{
if(pauseframe && currFrameCounter == pauseframe)
@ -184,6 +176,9 @@ public:
std::vector<char> savestate;
std::vector<MovieRecord> records;
//the entire contents of the disk file that was loaded
std::vector<char> serializedFile;
class TDictionary : public std::map<std::string,std::string>
{
public:
@ -236,22 +231,33 @@ public:
} currMovieData;
void DumpCurrentHeader(FILE* fp)
{
fprintf(fp,":version %d\n", currMovieData.version);
fprintf(fp,":emuVersion %d\n", currMovieData.emuVersion);
fprintf(fp,":palFlag %d\n", currMovieData.palFlag?1:0);
fprintf(fp,":poweronFlag %d\n", currMovieData.poweronFlag?1:0);
fprintf(fp,":resetFlag %d\n", currMovieData.resetFlag?1:0);
fprintf(fp,":romFilename %s\n", currMovieData.romFilename.c_str());
fprintf(fp,":romChecksum %s\n", BytesToString(currMovieData.romChecksum.data,MD5DATA::size).c_str());
fprintf(fp,"version %d\n", currMovieData.version);
fprintf(fp,"emuVersion %d\n", currMovieData.emuVersion);
fprintf(fp,"palFlag %d\n", currMovieData.palFlag?1:0);
fprintf(fp,"poweronFlag %d\n", currMovieData.poweronFlag?1:0);
fprintf(fp,"resetFlag %d\n", currMovieData.resetFlag?1:0);
fprintf(fp,"romFilename %s\n", currMovieData.romFilename.c_str());
fprintf(fp,"romChecksum %s\n", BytesToString(currMovieData.romChecksum.data,MD5DATA::size).c_str());
if(currMovieData.savestate.size() != 0)
fprintf(fp,":savestate %s\n", BytesToString(&currMovieData.savestate[0],currMovieData.savestate.size()).c_str());
fprintf(fp,"savestate %s\n", BytesToString(&currMovieData.savestate[0],currMovieData.savestate.size()).c_str());
}
//yuck... another custom text parser.
void LoadFM2(MovieData& movieData, FILE *fp)
{
//read the entire file so we can keep it handy.
//we could parse from that instead of the disk again...
fseek(fp,0,SEEK_END);
int len = ftell(fp);
fseek(fp,0,SEEK_SET);
movieData.serializedFile.resize(len);
fread(&movieData.serializedFile[0],1,len,fp);
fseek(fp,0,SEEK_SET);
MovieData::TDictionary dictionary;
std::string key,value;
@ -265,25 +271,23 @@ void LoadFM2(MovieData& movieData, FILE *fp)
if(c == -1)
goto bail;
bool iswhitespace = (c==' '||c=='\t');
bool iskeychar = (c==':');
bool isrecchar = (c=='|');
bool isnewline = (c==10||c==13);
switch(state)
{
case NEWLINE:
if(isnewline) goto done;
if(iskeychar)
{
if(iswhitespace) goto done;
if(isrecchar)
goto dorecord;
//must be a key
key = "";
value = "";
state = KEY;
goto done;
}
goto dorecord;
goto dokey;
break;
case RECORD: {
dorecord:
MovieRecord record;
ungetc(c,fp);
//for each joystick
for(int i=0;i<4;i++)
{
@ -550,8 +554,6 @@ static void movie_writechar(int c)
fputc(c,fpRecordingMovie);
}
//the main interaction point between the emulator and the movie system.
//either dumps the current joystick state or loads one state from the movie
void FCEUMOV_AddJoy(uint8 *js, int SkipFlush)
@ -585,6 +587,8 @@ void FCEUMOV_AddJoy(uint8 *js, int SkipFlush)
}
else if(movieMode == MOVIEMODE_RECORD)
{
movie_writechar('|');
//for each joystick
for(int i=0;i<4;i++)
{
@ -619,9 +623,13 @@ void FCEUMOV_AddJoy(uint8 *js, int SkipFlush)
}
//TODO
void FCEUMOV_AddCommand(int cmd)
{
if(current <= 0) return; // Return if not recording a movie
// do nothing if not recording a movie
if(movieMode != MOVIEMODE_RECORD)
return;
//printf("%d\n",cmd);
//MBG TODO BIG TODO TODO TODO
@ -688,24 +696,53 @@ void FCEU_DrawMovies(uint8 *XBuf)
int FCEUMOV_WriteState(FILE* st)
{
uint32 to_write = 0;
if(current < 0)
to_write = moviedatasize;
else if(current > 0)
to_write = frameptr;
//we are supposed to dump the movie data into the savestate
if(!st)
return to_write;
if(movieMode == MOVIEMODE_RECORD)
{
int todo = ftell(fpRecordingMovie);
if(st)
{
fseek(fpRecordingMovie,0,SEEK_SET);
std::vector<uint8> tempbuf(todo);
fread(&tempbuf[0],1,todo,fpRecordingMovie);
fwrite(&tempbuf[0],1,todo,st);
}
return todo;
}
else
{
int todo = currMovieData.serializedFile.size();
if(st)
{
fwrite(&currMovieData.serializedFile[0],1,currMovieData.serializedFile.size(),st);
}
return todo;
}
if(to_write)
fwrite(moviedata, 1, to_write, st);
return to_write;
}
static int load_successful;
static bool load_successful;
int FCEUMOV_ReadState(FILE* st, uint32 size)
{
load_successful = false;
//write the state to disk so we can reload
std::vector<uint8> buf(size);
fread(&buf[0],1,size,st);
FILE* tmp = tmpfile();
fwrite(&buf[0],1,size,tmp);
fseek(tmp,0,SEEK_SET);
currMovieData = MovieData();
LoadFM2(currMovieData, tmp);
fclose(tmp);
//todo - switch to recording
movieMode = MOVIEMODE_PLAY;
load_successful = true;
//// if this savestate was made while replaying,
//// we need to "undo" nextd and nextts
//if(nextd != -1)