diff options
Diffstat (limited to 'engines/sci')
-rw-r--r-- | engines/sci/resource.cpp | 142 | ||||
-rw-r--r-- | engines/sci/resource.h | 4 | ||||
-rw-r--r-- | engines/sci/resource_intern.h | 7 |
3 files changed, 85 insertions, 68 deletions
diff --git a/engines/sci/resource.cpp b/engines/sci/resource.cpp index 35e0c93d59..45ee9b3d0f 100644 --- a/engines/sci/resource.cpp +++ b/engines/sci/resource.cpp @@ -376,89 +376,101 @@ void MacResourceForkResourceSource::loadResource(Resource *res, ResourceManager } } -void ResourceSource::loadResource(Resource *res, ResourceManager *resMan) { +Common::SeekableReadStream *ResourceSource::getVolumeFile(Resource *res, ResourceManager *resMan) { Common::SeekableReadStream *fileStream = resMan->getVolumeFile(this); if (!fileStream) { warning("Failed to open %s", getLocationName().c_str()); res->unalloc(); - return; } - switch(getSourceType()) { - case kSourceWave: - fileStream->seek(res->_fileOffset, SEEK_SET); - resMan->loadFromWaveFile(res, fileStream); - if (_resourceFile) - delete fileStream; + return fileStream; +} + +void WaveResourceSource::loadResource(Resource *res, ResourceManager *resMan) { + Common::SeekableReadStream *fileStream = getVolumeFile(res, resMan); + if (!fileStream) return; - case kSourceAudioVolume: - if (audioCompressionType) { - // this file is compressed, so lookup our offset in the offset-translation table and get the new offset - // also calculate the compressed size by using the next offset - int32 *mappingTable = audioCompressionOffsetMapping; - int32 compressedOffset = 0; - - do { - if (*mappingTable == res->_fileOffset) { - mappingTable++; - compressedOffset = *mappingTable; - // Go to next compressed offset and use that to calculate size of compressed sample - switch (res->_id.type) { - case kResourceTypeSync: - case kResourceTypeSync36: - // we should already have a (valid) size - break; - default: - mappingTable += 2; - res->size = *mappingTable - compressedOffset; - } + fileStream->seek(res->_fileOffset, SEEK_SET); + resMan->loadFromWaveFile(res, fileStream); + if (_resourceFile) + delete fileStream; +} + +void AudioVolumeResourceSource::loadResource(Resource *res, ResourceManager *resMan) { + Common::SeekableReadStream *fileStream = getVolumeFile(res, resMan); + if (!fileStream) + return; + + if (audioCompressionType) { + // this file is compressed, so lookup our offset in the offset-translation table and get the new offset + // also calculate the compressed size by using the next offset + int32 *mappingTable = audioCompressionOffsetMapping; + int32 compressedOffset = 0; + + do { + if (*mappingTable == res->_fileOffset) { + mappingTable++; + compressedOffset = *mappingTable; + // Go to next compressed offset and use that to calculate size of compressed sample + switch (res->_id.type) { + case kResourceTypeSync: + case kResourceTypeSync36: + // we should already have a (valid) size break; + default: + mappingTable += 2; + res->size = *mappingTable - compressedOffset; } - mappingTable += 2; - } while (*mappingTable); - - if (!compressedOffset) - error("could not translate offset to compressed offset in audio volume"); - fileStream->seek(compressedOffset, SEEK_SET); - - switch (res->_id.type) { - case kResourceTypeAudio: - case kResourceTypeAudio36: - // Directly read the stream, compressed audio wont have resource type id and header size for SCI1.1 - resMan->loadFromAudioVolumeSCI1(res, fileStream); - if (_resourceFile) - delete fileStream; - return; - default: break; } - } else { - // original file, directly seek to given offset and get SCI1/SCI1.1 audio resource - fileStream->seek(res->_fileOffset, SEEK_SET); - } - if (getSciVersion() < SCI_VERSION_1_1) + mappingTable += 2; + } while (*mappingTable); + + if (!compressedOffset) + error("could not translate offset to compressed offset in audio volume"); + fileStream->seek(compressedOffset, SEEK_SET); + + switch (res->_id.type) { + case kResourceTypeAudio: + case kResourceTypeAudio36: + // Directly read the stream, compressed audio wont have resource type id and header size for SCI1.1 resMan->loadFromAudioVolumeSCI1(res, fileStream); - else - resMan->loadFromAudioVolumeSCI11(res, fileStream); + if (_resourceFile) + delete fileStream; + return; + default: + break; + } + } else { + // original file, directly seek to given offset and get SCI1/SCI1.1 audio resource + fileStream->seek(res->_fileOffset, SEEK_SET); + } + if (getSciVersion() < SCI_VERSION_1_1) + resMan->loadFromAudioVolumeSCI1(res, fileStream); + else + resMan->loadFromAudioVolumeSCI11(res, fileStream); - if (_resourceFile) - delete fileStream; + if (_resourceFile) + delete fileStream; +} + +void ResourceSource::loadResource(Resource *res, ResourceManager *resMan) { + Common::SeekableReadStream *fileStream = getVolumeFile(res, resMan); + if (!fileStream) return; - default: - fileStream->seek(res->_fileOffset, SEEK_SET); - int error = resMan->decompress(res, fileStream); + fileStream->seek(res->_fileOffset, SEEK_SET); + int error = resMan->decompress(res, fileStream); - if (_resourceFile) - delete fileStream; + if (_resourceFile) + delete fileStream; - if (error) { - warning("Error %d occured while reading %s from resource file: %s", - error, res->_id.toString().c_str(), sci_error_types[error]); - res->unalloc(); - } + if (error) { + warning("Error %d occured while reading %s from resource file: %s", + error, res->_id.toString().c_str(), sci_error_types[error]); + res->unalloc(); } } @@ -1541,7 +1553,7 @@ void ResourceManager::addResource(ResourceId resId, ResourceSource *src, uint32 } int ResourceManager::readResourceInfo(Resource *res, Common::SeekableReadStream *file, - uint32&szPacked, ResourceCompression &compression) { + uint32 &szPacked, ResourceCompression &compression) { // SCI0 volume format: {wResId wPacked+4 wUnpacked wCompression} = 8 bytes // SCI1 volume format: {bResType wResNumber wPacked+4 wUnpacked wCompression} = 9 bytes // SCI1.1 volume format: {bResType wResNumber wPacked wUnpacked wCompression} = 9 bytes diff --git a/engines/sci/resource.h b/engines/sci/resource.h index ff848d24b2..6d37455f52 100644 --- a/engines/sci/resource.h +++ b/engines/sci/resource.h @@ -167,6 +167,8 @@ class Resource { // FIXME: These 'friend' declarations are meant to be a temporary hack to // ease transition to the ResourceSource class system. friend class ResourceSource; + friend class WaveResourceSource; + friend class AudioVolumeResourceSource; friend class MacResourceForkResourceSource; public: @@ -393,7 +395,7 @@ protected: bool loadFromAudioVolumeSCI11(Resource *res, Common::SeekableReadStream *file); void freeOldResources(); int decompress(Resource *res, Common::SeekableReadStream *file); - int readResourceInfo(Resource *res, Common::SeekableReadStream *file, uint32&szPacked, ResourceCompression &compression); + int readResourceInfo(Resource *res, Common::SeekableReadStream *file, uint32 &szPacked, ResourceCompression &compression); void addResource(ResourceId resId, ResourceSource *src, uint32 offset, uint32 size = 0); void removeAudioResource(ResourceId resId); diff --git a/engines/sci/resource_intern.h b/engines/sci/resource_intern.h index 3d51e0ae02..560e99ac80 100644 --- a/engines/sci/resource_intern.h +++ b/engines/sci/resource_intern.h @@ -68,6 +68,9 @@ public: ResSourceType getSourceType() const { return _sourceType; } const Common::String &getLocationName() const { return _name; } + // Auxiliary method, used by loadResource implementations. + Common::SeekableReadStream *getVolumeFile(Resource *res, ResourceManager *resMan); + /** * TODO: Document this */ @@ -136,7 +139,7 @@ public: : VolumeResourceSource(name, map, kSourceAudioVolume) { } - //virtual void loadResource(Resource *res, ResourceManager *resMan); + virtual void loadResource(Resource *res, ResourceManager *resMan); }; class ExtAudioMapResourceSource : public ResourceSource { @@ -150,7 +153,7 @@ class WaveResourceSource : public ResourceSource { public: WaveResourceSource(const Common::String &name) : ResourceSource(kSourceWave, name) {} - //virtual void loadResource(Resource *res, ResourceManager *resMan); + virtual void loadResource(Resource *res, ResourceManager *resMan); }; class MacResourceForkResourceSource : public ResourceSource { |