thirdparty/scummvm
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Added code to get which channels are used by a sound. Also, fixed a crash when using Sierra's GM patches, a regression from commit #49391.

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svn-id: r49415
This commit is contained in:
Filippos Karapetis 2010-06-03 22:00:50 +00:00
parent 1973bd5a71
commit ddf7449b00
2 changed files with 7 additions and 0 deletions
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2
engines/sci/resource.h
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@ -512,6 +512,7 @@ public:
Track *getDigitalTrack();
int getChannelFilterMask(int hardwareMask, bool wantsRhythm);
byte getInitialVoiceCount(byte channel);
bool isChannelUsed(byte channel) { return _usedChannels[channel]; }
private:
SciVersion _soundVersion;
@ -519,6 +520,7 @@ private:
Track *_tracks;
Resource *_innerResource;
ResourceManager *_resMan;
bool _usedChannels[16];
};
} // End of namespace Sci

5
engines/sci/resource_audio.cpp
View file

@ -151,6 +151,7 @@ void ResourceManager::addNewGMPatch(const Common::String &gameId) {
if (!gmPatchFile.empty() && Common::File::exists(gmPatchFile)) {
ResourceSource *psrcPatch = new ResourceSource;
psrcPatch->source_type = kSourcePatch;
psrcPatch->resourceFile = 0;
psrcPatch->location_name = gmPatchFile;
processPatch(psrcPatch, kResourceTypePatch, 4);
}
@ -467,6 +468,9 @@ SoundResource::SoundResource(uint32 resNumber, ResourceManager *resMan, SciVersi
byte *dataEnd;
Channel *channel, *sampleChannel;
for (int i = 0; i < 16; i++)
_usedChannels[i] = false;
switch (_soundVersion) {
case SCI_VERSION_0_EARLY:
case SCI_VERSION_0_LATE:
@ -556,6 +560,7 @@ SoundResource::SoundResource(uint32 resNumber, ResourceManager *resMan, SciVersi
channel->data = resource->data + READ_LE_UINT16(data + 2) + 2;
channel->size = READ_LE_UINT16(data + 4) - 2; // Not counting channel header
channel->number = *(channel->data - 2);
_usedChannels[channel->number] = true;
channel->poly = *(channel->data - 1);
channel->time = channel->prev = 0;
if (channel->number == 0xFE) { // Digital channel