bool _loadStream(struct GBAMGMContext* mgm, uint32_t streamId) {
if (mgm->movieStream && !mgm->movieStream->close(mgm->movieStream)) {
return false;
}
mgm->movieStream = 0;
mgm->streamId = streamId;
mgm->currentInput = INVALID_INPUT;
char buffer[14];
snprintf(buffer, sizeof(buffer), "%u" BINARY_EXT, streamId);
if (mgm->d.isRecording(&mgm->d)) {
int flags = O_CREAT | O_RDWR;
if (streamId > mgm->maxStreamId) {
flags |= O_TRUNC;
}
mgm->movieStream = mgm->streamDir->openFile(mgm->streamDir, buffer, flags);
} else if (mgm->d.isPlaying(&mgm->d)) {
mgm->movieStream = mgm->streamDir->openFile(mgm->streamDir, buffer, O_RDONLY);
mgm->peekedTag = TAG_INVALID;
if (!mgm->movieStream || !_verifyMagic(mgm, mgm->movieStream) || !_seekTag(mgm, mgm->movieStream, TAG_BEGIN)) {
mgm->d.stopPlaying(&mgm->d);
}
}
GBALog(0, GBA_LOG_DEBUG, "[RR] Loading segment: %u", streamId);
mgm->d.frames = 0;
mgm->d.lagFrames = 0;
return true;
}
bool GBARRLoadStream(struct GBARRContext* rr, uint32_t streamId) {
if (rr->movieStream && !rr->movieStream->close(rr->movieStream)) {
return false;
}
rr->movieStream = 0;
rr->streamId = streamId;
rr->currentInput = INVALID_INPUT;
char buffer[14];
snprintf(buffer, sizeof(buffer), "%u" BINARY_EXT, streamId);
if (GBARRIsRecording(rr)) {
int flags = O_CREAT | O_RDWR;
if (streamId > rr->maxStreamId) {
flags |= O_TRUNC;
}
rr->movieStream = rr->streamDir->openFile(rr->streamDir, buffer, flags);
} else if (GBARRIsPlaying(rr)) {
rr->movieStream = rr->streamDir->openFile(rr->streamDir, buffer, O_RDONLY);
rr->peekedTag = TAG_INVALID;
if (!rr->movieStream || !_verifyMagic(rr, rr->movieStream) || !_seekTag(rr, rr->movieStream, TAG_BEGIN)) {
GBARRStopPlaying(rr);
}
}
GBALog(0, GBA_LOG_DEBUG, "[RR] Loading segment: %u", streamId);
rr->frames = 0;
rr->lagFrames = 0;
return true;
}
void GBAMGMNextFrame(struct GBARRContext* rr) {
if (!rr->isRecording(rr) && !rr->isPlaying(rr)) {
return;
}
struct GBAMGMContext* mgm = (struct GBAMGMContext*) rr;
if (rr->isPlaying(rr)) {
while (mgm->peekedTag == TAG_INPUT) {
_readTag(mgm, mgm->movieStream);
GBALog(0, GBA_LOG_WARN, "[RR] Desync detected!");
}
if (mgm->peekedTag == TAG_LAG) {
GBALog(0, GBA_LOG_DEBUG, "[RR] Lag frame marked in stream");
if (mgm->inputThisFrame) {
GBALog(0, GBA_LOG_WARN, "[RR] Lag frame in stream does not match movie");
}
}
}
++mgm->d.frames;
GBALog(0, GBA_LOG_DEBUG, "[RR] Frame: %u", mgm->d.frames);
if (!mgm->inputThisFrame) {
++mgm->d.lagFrames;
GBALog(0, GBA_LOG_DEBUG, "[RR] Lag frame: %u", mgm->d.lagFrames);
}
if (rr->isRecording(rr)) {
if (!mgm->inputThisFrame) {
_emitTag(mgm, mgm->movieStream, TAG_LAG);
}
_emitTag(mgm, mgm->movieStream, TAG_FRAME);
mgm->inputThisFrame = false;
} else {
if (!_seekTag(mgm, mgm->movieStream, TAG_FRAME)) {
_streamEndReached(mgm);
}
}
}
