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Saveload: Allow discarding chunks with a load handler

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This commit is contained in:
Jonathan G Rennison
2019-12-26 20:30:55 +00:00
parent 0394a734ed
commit c75ed00f0f
1 changed files with 16 additions and 15 deletions
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31
src/saveload/saveload.cpp
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@@ -2220,24 +2220,21 @@ static const ChunkHandler *SlFindChunkHandler(uint32 id)
/** Load all chunks */
static void SlLoadChunks()
{
uint32 id;
const ChunkHandler *ch;
for (id = SlReadUint32(); id != 0; id = SlReadUint32()) {
for (uint32 id = SlReadUint32(); id != 0; id = SlReadUint32()) {
DEBUG(sl, 2, "Loading chunk %c%c%c%c", id >> 24, id >> 16, id >> 8, id);
size_t read = 0;
if (_debug_sl_level >= 3) read = SlGetBytesRead();
ch = SlFindChunkHandler(id);
if (ch == nullptr) {
if (SlXvIsChunkDiscardable(id)) {
DEBUG(sl, 1, "Discarding chunk %c%c%c%c", id >> 24, id >> 16, id >> 8, id);
SlLoadCheckChunk(nullptr);
} else {
SlErrorCorrupt("Unknown chunk type");
}
if (SlXvIsChunkDiscardable(id)) {
DEBUG(sl, 1, "Discarding chunk %c%c%c%c", id >> 24, id >> 16, id >> 8, id);
SlLoadCheckChunk(nullptr);
} else {
SlLoadChunk(ch);
const ChunkHandler *ch = SlFindChunkHandler(id);
if (ch == nullptr) {
SlErrorCorrupt("Unknown chunk type");
} else {
SlLoadChunk(ch);
}
}
DEBUG(sl, 3, "Loaded chunk %c%c%c%c (" PRINTF_SIZE " bytes)", id >> 24, id >> 16, id >> 8, id, SlGetBytesRead() - read);
}
@@ -2254,8 +2251,12 @@ static void SlLoadCheckChunks()
size_t read = 0;
if (_debug_sl_level >= 3) read = SlGetBytesRead();
ch = SlFindChunkHandler(id);
if (ch == nullptr && !SlXvIsChunkDiscardable(id)) SlErrorCorrupt("Unknown chunk type");
if (SlXvIsChunkDiscardable(id)) {
ch = nullptr;
} else {
ch = SlFindChunkHandler(id);
if (ch == nullptr) SlErrorCorrupt("Unknown chunk type");
}
SlLoadCheckChunk(ch);
DEBUG(sl, 3, "Loaded chunk %c%c%c%c (" PRINTF_SIZE " bytes)", id >> 24, id >> 16, id >> 8, id, SlGetBytesRead() - read);
}