diff options
Diffstat (limited to 'engines/sci/sound/audio32.h')
| -rw-r--r-- | engines/sci/sound/audio32.h | 28 |
1 files changed, 27 insertions, 1 deletions
diff --git a/engines/sci/sound/audio32.h b/engines/sci/sound/audio32.h index dd48b39865..27f7e8f3a1 100644 --- a/engines/sci/sound/audio32.h +++ b/engines/sci/sound/audio32.h @@ -157,11 +157,13 @@ enum AudioChannelIndex { * engine, since the system mixer does not support all the * features of SCI. */ -class Audio32 : public Audio::AudioStream { +class Audio32 : public Audio::AudioStream, public Common::Serializable { public: Audio32(ResourceManager *resMan); ~Audio32(); + virtual void saveLoadWithSerializer(Common::Serializer &s); + enum { /** * The maximum channel volume. @@ -205,6 +207,19 @@ public: } /** + * Gets the number of currently active channels that are playing from + * unlocked resources. + * + * @note In SSCI, this function would actually return the number of channels + * whose audio data were not loaded into memory. In practice, the signal for + * placing audio data into memory was a call to kLock, so since we do not + * follow how SSCI works when it comes to resource management, the lock + * state is used as an (apparently) successful proxy for this information + * instead. + */ + uint8 getNumUnlockedChannels() const; + + /** * Finds a channel that is already configured for the * given audio sample. * @@ -219,7 +234,13 @@ public: */ int16 findChannelById(const ResourceId resourceId, const reg_t soundNode = NULL_REG) const; + /** + * Sets or clears a lock on the given resource ID. + */ + void lockResource(const ResourceId resourceId, const bool lock); + private: + typedef Common::Array<ResourceId> LockList; typedef Common::Array<Resource *> UnlockList; /** @@ -252,6 +273,11 @@ private: UnlockList _resourcesToUnlock; /** + * The list of resource IDs that have been locked by game scripts. + */ + LockList _lockedResourceIds; + + /** * Gets the audio channel at the given index. */ inline AudioChannel &getChannel(const int16 channelIndex) { |