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/* Only implemented to the extent necessary to match data sections. */
#include "nw4r/snd/snd_DvdSoundArchive.h"
#include "nw4r/ut/ut_DvdLockedFileStream.h"
#include <cstring>
#include <new>
namespace nw4r {
namespace snd {
class DvdSoundArchive::DvdFileStream : public ut::DvdLockedFileStream {
public:
DvdFileStream(const DVDFileInfo* pFileInfo, u32 offset, u32 size);
DvdFileStream(s32 entrynum, u32 offset, u32 size);
virtual s32 Read(void* pDst, u32 size); // at 0x14
virtual void Seek(s32 offset, u32 origin); // at 0x44
virtual u32 Tell() const {
return ut::DvdFileStream::Tell() - mOffset;
} // at 0x58
virtual u32 GetSize() const {
return mSize;
} // at 0x40
private:
s32 mOffset; // at 0x70
s32 mSize; // at 0x74
};
DvdSoundArchive::DvdSoundArchive() : mOpen(false) {}
DvdSoundArchive::~DvdSoundArchive() {
Close();
}
bool DvdSoundArchive::Open(s32 entrynum) {
if (!DVDFastOpen(entrynum, &mFileInfo)) {
return false;
}
mOpen = true;
return LoadFileHeader();
}
bool DvdSoundArchive::Open(const char* pPath) {
s32 entrynum = DVDConvertPathToEntrynum(pPath);
if (entrynum < 0) {
return false;
}
if (!Open(entrynum)) {
return false;
}
char extRoot[FILE_PATH_MAX];
for (int i = std::strlen(pPath) - 1; i >= 0; i--) {
if ((pPath[i] == '/' || pPath[i] == '\\')) {
if (i >= FILE_PATH_MAX + 1) {
return false;
}
std::strncpy(extRoot, pPath, i);
extRoot[i] = '\0';
SetExternalFileRoot(extRoot);
break;
}
}
return true;
}
void DvdSoundArchive::Close() {
if (mOpen) {
DVDClose(&mFileInfo);
mOpen = false;
}
Shutdown();
}
ut::FileStream* DvdSoundArchive::OpenStream(void* pBuffer, int size, u32 offset,
u32 length) const {
if (!mOpen) {
return NULL;
}
if (size < sizeof(DvdFileStream)) {
return NULL;
}
return new (pBuffer) DvdFileStream(&mFileInfo, offset, length);
}
ut::FileStream* DvdSoundArchive::OpenExtStream(void* pBuffer, int size,
const char* pExtPath, u32 offset,
u32 length) const {
if (!mOpen) {
return NULL;
}
if (size < sizeof(DvdFileStream)) {
return NULL;
}
s32 entrynum = DVDConvertPathToEntrynum(pExtPath);
if (entrynum < 0) {
return NULL;
}
return new (pBuffer) DvdFileStream(entrynum, offset, length);
}
int DvdSoundArchive::detail_GetRequiredStreamBufferSize() const {
return sizeof(DvdFileStream);
}
bool DvdSoundArchive::LoadFileHeader() {
u8 headerArea[detail::SoundArchiveFile::HEADER_AREA_SIZE];
static const u32 headerAlignSize =
ROUND_UP(sizeof(detail::SoundArchiveFile::Header), 32);
void* pFile = ut::RoundUp<u8>(headerArea, 32);
s32 bytesRead =
DVDReadPrio(&mFileInfo, pFile, headerAlignSize, 0, DVD_PRIO_MEDIUM);
if (bytesRead != headerAlignSize) {
return false;
}
mFileReader.Init(pFile);
Setup(&mFileReader);
return true;
}
bool DvdSoundArchive::LoadHeader(void* pBuffer, u32 size) {
u32 infoSize = mFileReader.GetInfoChunkSize();
s32 infoOffset = mFileReader.GetInfoChunkOffset();
if (size < infoSize) {
return false;
}
s32 bytesRead =
DVDReadPrio(&mFileInfo, pBuffer, infoSize, infoOffset, DVD_PRIO_MEDIUM);
if (bytesRead != infoSize) {
return false;
}
mFileReader.SetInfoChunk(pBuffer, infoSize);
return true;
}
bool DvdSoundArchive::LoadLabelStringData(void* pBuffer, u32 size) {
u32 labelSize = mFileReader.GetLabelStringChunkSize();
s32 labelOffset = mFileReader.GetLabelStringChunkOffset();
if (size < labelSize) {
return false;
}
s32 bytesRead = DVDReadPrio(&mFileInfo, pBuffer, labelSize, labelOffset,
DVD_PRIO_MEDIUM);
if (bytesRead != labelSize) {
return false;
}
mFileReader.SetStringChunk(pBuffer, labelSize);
return true;
}
DvdSoundArchive::DvdFileStream::DvdFileStream(const DVDFileInfo* pFileInfo,
u32 offset, u32 size)
: DvdLockedFileStream(pFileInfo, false), mOffset(offset), mSize(size) {
ut::DvdFileStream::Seek(mOffset, SEEKORG_BEG);
}
DvdSoundArchive::DvdFileStream::DvdFileStream(s32 entrynum, u32 offset,
u32 size)
: DvdLockedFileStream(entrynum), mOffset(offset), mSize(size) {
ut::DvdFileStream::Seek(mOffset, SEEKORG_BEG);
}
s32 DvdSoundArchive::DvdFileStream::Read(void* pDst, u32 size) {
u32 endOffset = mOffset + mSize;
u32 startOffset = ut::DvdFileStream::Tell();
if (startOffset + size > endOffset) {
size = ut::RoundUp(endOffset - ut::DvdFileStream::Tell(), 32);
}
return DvdLockedFileStream::Read(pDst, size);
}
void DvdSoundArchive::DvdFileStream::Seek(s32 offset, u32 origin) {
switch (origin) {
case SEEKORG_BEG: {
offset += mOffset;
break;
}
case SEEKORG_CUR: {
offset += ut::DvdFileStream::Tell();
break;
}
case SEEKORG_END: {
offset = mOffset + mSize - offset;
break;
}
default: {
return;
}
}
if (offset < mOffset) {
offset = mOffset;
} else if (offset > mOffset + mSize) {
offset = mOffset + mSize;
}
ut::DvdFileStream::Seek(offset, SEEKORG_BEG);
}
}}
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