// Program signals that it has written data to the ringbuffer and gets a callback ?
u32 sceMpegRingbufferPut(u32 ringbufferAddr, u32 numPackets, u32 available)
{
DEBUG_LOG(HLE, "sceMpegRingbufferPut(%08x, %i, %i)", ringbufferAddr, numPackets, available);
numPackets = std::min(numPackets, available);
if (numPackets <= 0)
return 0;
SceMpegRingBuffer ringbuffer;
Memory::ReadStruct(ringbufferAddr, &ringbuffer);
MpegContext *ctx = getMpegCtx(ringbuffer.mpeg);
if (!ctx) {
WARN_LOG(HLE, "sceMpegRingbufferPut(%08x, %i, %i): bad mpeg handle %08x", ringbufferAddr, numPackets, available, ringbuffer.mpeg);
return 0;
}
// Execute callback function as a direct MipsCall, no blocking here so no messing around with wait states etc
if (ringbuffer.callback_addr) {
PostPutAction *action = (PostPutAction *)__KernelCreateAction(actionPostPut);
action->setRingAddr(ringbufferAddr);
// TODO: Should call this multiple times until we get numPackets.
// Normally this would be if it did not read enough, but also if available > packets.
// Should ultimately return the TOTAL number of returned packets.
u32 packetsThisRound = std::min(numPackets, (u32)ringbuffer.packets);
u32 args[3] = {(u32)ringbuffer.data, packetsThisRound, (u32)ringbuffer.callback_args};
__KernelDirectMipsCall(ringbuffer.callback_addr, action, args, 3, false);
} else {
ERROR_LOG(HLE, "sceMpegRingbufferPut: callback_addr zero");
}
return 0;
}
// Program signals that it has written data to the ringbuffer and gets a callback ?
u32 sceMpegRingbufferPut(u32 ringbufferAddr, u32 numPackets, u32 available)
{
DEBUG_LOG(HLE, "sceMpegRingbufferPut(%08x, %i, %i)", ringbufferAddr, numPackets, available);
numPackets = std::min(numPackets, available);
if (numPackets <= 0) {
ERROR_LOG(HLE, "sub-zero number of packets put");
return 0;
}
SceMpegRingBuffer ringbuffer;
Memory::ReadStruct(ringbufferAddr, &ringbuffer);
MpegContext *ctx = getMpegCtx(ringbuffer.mpeg);
if (!ctx) {
WARN_LOG(HLE, "sceMpegRingbufferPut(%08x, %i, %i): bad mpeg handle %08x", ringbufferAddr, numPackets, available, ringbuffer.mpeg);
return 0;
}
// Clamp to length of mpeg stream - this seems like a hack as we don't have access to the context here really
int mpegStreamPackets = (ctx->mpegStreamSize + ringbuffer.packetSize - 1) / ringbuffer.packetSize;
int remainingPackets = mpegStreamPackets - ringbuffer.packetsRead;
if (remainingPackets < 0) {
remainingPackets = 0;
}
numPackets = std::min(numPackets, (u32)remainingPackets);
// Execute callback function as a direct MipsCall, no blocking here so no messing around with wait states etc
if (ringbuffer.callback_addr) {
PostPutAction *action = (PostPutAction *) __KernelCreateAction(actionPostPut);
action->setRingAddr(ringbufferAddr);
u32 args[3] = {(u32)ringbuffer.data, numPackets, (u32)ringbuffer.callback_args};
__KernelDirectMipsCall(ringbuffer.callback_addr, action, args, 3, false);
} else {
ERROR_LOG(HLE, "sceMpegRingbufferPut: callback_addr zero");
}
return 0;
}
