75 lines
2.5 KiB
C++
75 lines
2.5 KiB
C++
/**
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******************************************************************************
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* Xenia : Xbox 360 Emulator Research Project *
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******************************************************************************
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* Copyright 2023 Ben Vanik. All rights reserved. *
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* Released under the BSD license - see LICENSE in the root for more details. *
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******************************************************************************
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*/
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#ifndef XENIA_VFS_DEVICES_XCONTENT_DEVICES_SVOD_CONTAINER_DEVICE_H_
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#define XENIA_VFS_DEVICES_XCONTENT_DEVICES_SVOD_CONTAINER_DEVICE_H_
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#include <map>
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#include "xenia/vfs/devices/stfs_xbox.h"
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#include "xenia/vfs/devices/xcontent_container_device.h"
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#include "xenia/vfs/devices/xcontent_devices/svod_container_entry.h"
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namespace xe {
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namespace vfs {
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class SvodContainerDevice : public XContentContainerDevice {
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public:
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SvodContainerDevice(const std::string_view mount_path,
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const std::filesystem::path& host_path);
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~SvodContainerDevice() override;
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bool is_read_only() const override { return true; }
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uint32_t component_name_max_length() const override { return 255; }
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uint32_t total_allocation_units() const override {
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return uint32_t(data_size() / sectors_per_allocation_unit() /
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bytes_per_sector());
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}
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uint32_t available_allocation_units() const override { return 0; }
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private:
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enum class SvodLayoutType {
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kUnknown = 0x0,
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kEnhancedGDF = 0x1,
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kXSF = 0x2,
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kSingleFile = 0x4,
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kMultipleFiles = 0x8,
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};
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const char* MEDIA_MAGIC = "MICROSOFT*XBOX*MEDIA";
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Result LoadHostFiles() override;
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Result Read() override;
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Result ReadEntry(uint32_t sector, uint32_t ordinal,
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SvodContainerEntry* parent);
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void BlockToOffset(size_t sector, size_t* address, size_t* file_index) const;
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Result SetLayout(FILE* header, size_t& magic_offset);
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Result SetEDGFLayout(FILE* header, size_t& magic_offset);
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Result SetXSFLayout(FILE* header, size_t& magic_offset);
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Result SetNormalLayout(FILE* header, size_t& magic_offset);
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const bool IsEDGFLayout() const {
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return header_->content_metadata.volume_descriptor.svod.features.bits
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.enhanced_gdf_layout;
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}
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const bool IsXSFLayout(FILE* header) const;
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size_t svod_base_offset_;
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SvodLayoutType svod_layout_;
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MultiFileHandles files_;
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};
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} // namespace vfs
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} // namespace xe
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#endif // XENIA_VFS_DEVICES_XCONTENT_DEVICES_SVOD_CONTAINER_DEVICE_H_
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