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[VFS] SVOD (with EGDF) support

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This commit is contained in:
Dr. Chat
2018-05-29 14:10:09 -05:00
parent 62bb26878f
commit a0464f54ba
4 changed files with 250 additions and 77 deletions
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38
src/xenia/vfs/devices/stfs_container_device.h
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@@ -21,6 +21,8 @@ namespace vfs {
// http://www.free60.org/wiki/STFS
class StfsContainerEntry;
enum class StfsPackageType {
kCon,
kPirs,
@@ -85,6 +87,24 @@ struct StfsVolumeDescriptor {
uint32_t total_unallocated_block_count;
};
enum SvodDeviceFeatures {
kFeatureHasEnhancedGDFLayout = 0x40,
};
struct SvodVolumeDescriptor {
bool Read(const uint8_t* p);
uint8_t descriptor_size;
uint8_t block_cache_element_count;
uint8_t worker_thread_processor;
uint8_t worker_thread_priority;
uint8_t hash[0x14];
uint8_t device_features;
uint32_t data_block_count;
uint32_t data_block_offset;
// 0x5 padding bytes...
};
class StfsHeader {
public:
bool Read(const uint8_t* p);
@@ -106,7 +126,10 @@ class StfsHeader {
uint32_t save_game_id;
uint8_t console_id[0x5];
uint8_t profile_id[0x8];
StfsVolumeDescriptor volume_descriptor;
union {
StfsVolumeDescriptor stfs_volume_descriptor;
SvodVolumeDescriptor svod_volume_descriptor;
};
uint32_t data_file_count;
uint64_t data_file_combined_size;
StfsDescriptorType descriptor_type;
@@ -154,10 +177,17 @@ class StfsContainerDevice : public Device {
uint32_t info;
};
const uint32_t kSTFSHashSpacing = 170;
const uint32_t kSVODHashSpacing = 204;
Error ReadHeaderAndVerify(const uint8_t* map_ptr);
Error ReadAllEntries(const uint8_t* map_ptr);
size_t BlockToOffset(uint32_t block);
uint32_t ComputeBlockNumber(uint32_t block_index);
Error ReadAllEntriesEGDF(const uint8_t* map_ptr);
bool ReadEntryEGDF(const uint8_t* buffer, uint16_t entry_ordinal,
StfsContainerEntry* parent);
Error ReadAllEntriesSTFS(const uint8_t* map_ptr);
size_t BlockToOffsetSTFS(uint64_t block);
size_t BlockToOffsetEGDF(uint64_t block);
BlockHash GetBlockHash(const uint8_t* map_ptr, uint32_t block_index,
uint32_t table_offset);