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[VFS/STFS] Update mmap_total_size & total_allocation_units()

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This commit is contained in:
emoose
2021-04-17 13:50:58 +01:00
committed by Rick Gibbed
parent 84f566d92b
commit 14783b03f2
2 changed files with 19 additions and 4 deletions
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13
src/xenia/vfs/devices/stfs_container_device.h
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@@ -15,6 +15,7 @@
#include <string>
#include "xenia/base/mapped_memory.h"
#include "xenia/base/math.h"
#include "xenia/base/string_util.h"
#include "xenia/kernel/util/xex2_info.h"
#include "xenia/vfs/device.h"
@@ -413,13 +414,23 @@ class StfsContainerDevice : public Device {
uint32_t component_name_max_length() const override { return 40; }
uint32_t total_allocation_units() const override {
return uint32_t(mmap_total_size_ / sectors_per_allocation_unit() /
return uint32_t(data_size() / sectors_per_allocation_unit() /
bytes_per_sector());
}
uint32_t available_allocation_units() const override { return 0; }
uint32_t sectors_per_allocation_unit() const override { return 8; }
uint32_t bytes_per_sector() const override { return 0x200; }
// Gives rough estimate of the size of the data in this container
// TODO: use allocated_block_count inside volume-descriptor?
size_t data_size() const {
if (header_.header.header_size) {
return mmap_total_size_ -
xe::round_up(header_.header.header_size, kSectorSize);
}
return mmap_total_size_ - sizeof(StfsHeader);
}
private:
const uint32_t kSectorSize = 0x1000;
const uint32_t kBlocksPerHashLevel[3] = {170, 28900, 4913000};