diff options
Diffstat (limited to 'engines/gob/dataio.cpp')
| -rw-r--r-- | engines/gob/dataio.cpp | 18 |
1 files changed, 15 insertions, 3 deletions
diff --git a/engines/gob/dataio.cpp b/engines/gob/dataio.cpp index a37586aee6..f59fa80e8d 100644 --- a/engines/gob/dataio.cpp +++ b/engines/gob/dataio.cpp @@ -239,7 +239,7 @@ int16 DataIO::getChunk(const char *chunkName) { } dataDesc = _dataFiles[file]; - for (int16 chunk = 0; chunk < _numDataChunks[file]; chunk++, dataDesc++) { + for (uint16 chunk = 0; chunk < _numDataChunks[file]; chunk++, dataDesc++) { if (scumm_stricmp(chunkName, dataDesc->chunkName) != 0) continue; @@ -334,7 +334,6 @@ uint32 DataIO::getChunkPos(int16 handle) const { int32 DataIO::getChunkSize(const char *chunkName) { int16 file; - int16 chunk; struct ChunkDesc *dataDesc; int16 slot; int32 realSize; @@ -344,7 +343,7 @@ int32 DataIO::getChunkSize(const char *chunkName) { return -1; dataDesc = _dataFiles[file]; - for (chunk = 0; chunk < _numDataChunks[file]; chunk++, dataDesc++) { + for (uint16 chunk = 0; chunk < _numDataChunks[file]; chunk++, dataDesc++) { if (scumm_stricmp(chunkName, dataDesc->chunkName) != 0) continue; @@ -488,6 +487,16 @@ int16 DataIO::openData(const char *path) { return file_open(path); } +bool DataIO::existData(const char *path) { + int16 handle = openData(path); + + if (handle < 0) + return false; + + closeData(handle); + return true; +} + DataStream *DataIO::openAsStream(int16 handle, bool dispose) { uint32 curPos = getPos(handle); seekData(handle, 0, SEEK_END); @@ -575,6 +584,9 @@ byte *DataIO::getData(const char *path) { } DataStream *DataIO::getDataStream(const char *path) { + if (!path || (path[0] == '\0') || !existData(path)) + return 0; + uint32 size = getDataSize(path); byte *data = getData(path); |