65 lines
1.9 KiB
C++
65 lines
1.9 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 2013 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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#include <xenia/kernel/fs/devices/disc_image_file.h>
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#include <xenia/kernel/fs/gdfx.h>
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#include <xenia/kernel/fs/devices/disc_image_entry.h>
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using namespace xe;
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using namespace xe::kernel;
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using namespace xe::kernel::fs;
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DiscImageFile::DiscImageFile(
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KernelState* kernel_state, uint32_t desired_access,
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DiscImageEntry* entry) :
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entry_(entry),
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XFile(kernel_state, desired_access) {
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}
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DiscImageFile::~DiscImageFile() {
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}
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const char* DiscImageFile::path(void) const {
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return entry_->path();
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}
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const char* DiscImageFile::absolute_path(void) const {
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return entry_->absolute_path();
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}
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const char* DiscImageFile::name(void) const {
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return entry_->name();
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}
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X_STATUS DiscImageFile::QueryInfo(XFileInfo* out_info) {
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return entry_->QueryInfo(out_info);
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}
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X_STATUS DiscImageFile::QueryDirectory(
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XDirectoryInfo* out_info, size_t length, bool restart) {
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return entry_->QueryDirectory(out_info, length, restart);
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}
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X_STATUS DiscImageFile::ReadSync(
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void* buffer, size_t buffer_length, size_t byte_offset,
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size_t* out_bytes_read) {
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GDFXEntry* gdfx_entry = entry_->gdfx_entry();
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xe_mmap_ref mmap = entry_->mmap();
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size_t real_offset = gdfx_entry->offset + byte_offset;
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size_t real_length = MIN(buffer_length, gdfx_entry->size - byte_offset);
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xe_copy_memory(
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buffer, buffer_length,
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xe_mmap_get_addr(mmap) + real_offset, real_length);
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*out_bytes_read = real_length;
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return X_STATUS_SUCCESS;
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}
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