athena/include/athena/IStreamReader.hpp

1223 lines
37 KiB
C++

#pragma once
#include <functional>
#include <memory>
#include <type_traits>
#include <vector>
#include "athena/IStream.hpp"
#include "athena/Utility.hpp"
namespace athena::io {
/** @brief The IStreamReader class defines a basic API for reading from streams, Implementors are provided with one pure
* virtual function that must be implemented in order to interact with the stream.
*
* Most implementing classes will only need to implement IStreamReader::readUBytesToBuf(void*, atUint64) for basic
* stream interaction
*/
class IStreamReader : public IStream {
public:
~IStreamReader() override = default;
/** @brief Sets the buffers position relative to the specified position.<br />
* It seeks relative to the current position by default.
* @param position where in the buffer to seek
* @param origin The Origin to seek relative to
*/
void seek(atInt64 position, SeekOrigin origin = SeekOrigin::Current) override = 0;
/** @brief Sets the buffer's position relative to the next 64-byte aligned position.<br />
*/
void seekAlign64() { seek(ROUND_UP_64(position()), SeekOrigin::Begin); }
/** @brief Sets the buffers position relative to the next 32-byte aligned position.<br />
*/
void seekAlign32() { seek(ROUND_UP_32(position()), SeekOrigin::Begin); }
/** @brief Sets the buffer's position relative to the next 16-byte aligned position.<br />
*/
void seekAlign16() { seek(ROUND_UP_16(position()), SeekOrigin::Begin); }
/** @brief Sets the buffer's position relative to the next 4-byte aligned position.<br />
*/
void seekAlign4() { seek(ROUND_UP_4(position()), SeekOrigin::Begin); }
/** @brief Returns whether or not the stream is at the end.
*
* @return True if at end; False otherwise.
*/
bool atEnd() const override { return position() >= length(); }
/** @brief Returns the current position in the stream.
*
* @return The current position in the stream.
*/
atUint64 position() const override = 0;
/** @brief Returns the length of the file.
*
* @return True length of the file.
*/
atUint64 length() const override = 0;
/** @brief Reads a byte at the current position and advances the current position
*
* @return The value at the current position
*/
atInt8 readByte() {
atInt8 val = 0;
readUBytesToBuf(&val, 1);
return val;
}
template <class T>
atInt8 readVal(std::enable_if_t<std::is_same_v<T, atInt8>>* = nullptr) {
return readByte();
}
template <class T>
atInt8 readValLittle(std::enable_if_t<std::is_same_v<T, atInt8>>* = nullptr) {
return readByte();
}
template <class T>
atInt8 readValBig(std::enable_if_t<std::is_same_v<T, atInt8>>* = nullptr) {
return readByte();
}
/** @brief Reads a byte at the current position and advances the current position
*
* @return The value at the current position
*/
atUint8 readUByte() { return readByte(); }
template <class T>
atUint8 readVal(std::enable_if_t<std::is_same_v<T, atUint8>>* = nullptr) {
return readUByte();
}
template <class T>
atUint8 readValLittle(std::enable_if_t<std::is_same_v<T, atUint8>>* = nullptr) {
return readUByte();
}
template <class T>
atUint8 readValBig(std::enable_if_t<std::is_same_v<T, atUint8>>* = nullptr) {
return readUByte();
}
/** @brief Reads a byte at the current position and advances the current position.
*
* @return The buffer at the current position from the given length.
*/
std::unique_ptr<atInt8[]> readBytes(atUint64 length) {
auto buf = std::make_unique<atInt8[]>(length);
readUBytesToBuf(buf.get(), length);
return buf;
}
/** @brief Reads a byte at the current position and advances the current position.
*
* @return The buffer at the current position from the given length.
*/
std::unique_ptr<atUint8[]> readUBytes(atUint64 length) {
auto buf = std::make_unique<atUint8[]>(length);
readUBytesToBuf(buf.get(), length);
return buf;
}
/** @brief Attempts to read a fixed length of data into a pre-allocated buffer.
* @param buf The buffer to read into
* @param len The length of the buffer
* @return How much data was actually read, useful for detecting read errors.
*/
atUint64 readBytesToBuf(void* buf, atUint64 len) { return readUBytesToBuf(buf, len); }
/** @brief Attempts to read a fixed length of data into a pre-allocated buffer, this function is client defined
* and must be implemented.
* @param buf The buffer to read into
* @param len The length of the buffer
* @return How much data was actually read, useful for detecting read errors.
*/
virtual atUint64 readUBytesToBuf(void* buf, atUint64 len) = 0;
/** @brief Reads a Int16 and swaps to endianness specified by setEndian depending on platform
* and advances the current position
*
* @return The value at the current address
*/
atInt16 readInt16() {
atInt16 val = 0;
readUBytesToBuf(&val, 2);
return m_endian == Endian::Big ? utility::BigInt16(val) : utility::LittleInt16(val);
}
template <class T>
atInt16 readVal(std::enable_if_t<std::is_same_v<T, atInt16>>* = nullptr) {
return readInt16();
}
/** @brief Reads a Int16 and swaps against little endianness depending on platform
* and advances the current position
*
* @return The value at the current address
*/
atInt16 readInt16Little() {
atInt16 val = 0;
readUBytesToBuf(&val, 2);
return utility::LittleInt16(val);
}
template <class T>
atInt16 readValLittle(std::enable_if_t<std::is_same_v<T, atInt16>>* = nullptr) {
return readInt16Little();
}
/** @brief Reads a Int16 and swaps against big endianness depending on platform
* and advances the current position
*
* @return The value at the current address
*/
atInt16 readInt16Big() {
atInt16 val = 0;
readUBytesToBuf(&val, 2);
return utility::BigInt16(val);
}
template <class T>
atInt16 readValBig(std::enable_if_t<std::is_same_v<T, atInt16>>* = nullptr) {
return readInt16Big();
}
/** @brief Reads a Uint16 and swaps to endianness specified by setEndian depending on platform
* and advances the current position
*
* @return The value at the current address
*/
atUint16 readUint16() { return readInt16(); }
template <class T>
atUint16 readVal(std::enable_if_t<std::is_same_v<T, atUint16>>* = 0) {
return readUint16();
}
/** @brief Reads a Uint16 and swaps against little endianness depending on platform
* and advances the current position
*
* @return The value at the current address
*/
atUint16 readUint16Little() {
atUint16 val = 0;
readUBytesToBuf(&val, 2);
return utility::LittleUint16(val);
}
template <class T>
atUint16 readValLittle(std::enable_if_t<std::is_same_v<T, atUint16>>* = nullptr) {
return readUint16Little();
}
/** @brief Reads a Uint16 and swaps against big endianness depending on platform
* and advances the current position
*
* @return The value at the current address
*/
atUint16 readUint16Big() {
atUint16 val = 0;
readUBytesToBuf(&val, 2);
return utility::BigUint16(val);
}
template <class T>
atUint16 readValBig(std::enable_if_t<std::is_same_v<T, atUint16>>* = nullptr) {
return readUint16Big();
}
/** @brief Reads a Int32 and swaps to endianness specified by setEndian depending on platform
* and advances the current position
*
* @return The value at the current address
*/
atInt32 readInt32() {
atInt32 val = 0;
readUBytesToBuf(&val, 4);
return m_endian == Endian::Big ? utility::BigInt32(val) : utility::LittleInt32(val);
}
template <class T>
atInt32 readVal(std::enable_if_t<std::is_same_v<T, atInt32>>* = nullptr) {
return readInt32();
}
/** @brief Reads a Int32 and swaps against little endianness depending on platform
* and advances the current position
*
* @return The value at the current address
*/
atInt32 readInt32Little() {
atInt32 val = 0;
readUBytesToBuf(&val, 4);
return utility::LittleInt32(val);
}
template <class T>
atInt32 readValLittle(std::enable_if_t<std::is_same_v<T, atInt32>>* = nullptr) {
return readInt32Little();
}
/** @brief Reads a Int32 and swaps against big endianness depending on platform
* and advances the current position
*
* @return The value at the current address
*/
atInt32 readInt32Big() {
atInt32 val = 0;
readUBytesToBuf(&val, 4);
return utility::BigInt32(val);
}
template <class T>
atInt32 readValBig(std::enable_if_t<std::is_same_v<T, atInt32>>* = nullptr) {
return readInt32Big();
}
/** @brief Reads a Uint32 and swaps to endianness specified by setEndian depending on platform
* and advances the current position
*
* @return The value at the current address
*/
atUint32 readUint32() { return readInt32(); }
template <class T>
atUint32 readVal(std::enable_if_t<std::is_same_v<T, atUint32>>* = nullptr) {
return readUint32();
}
/** @brief Reads a Uint32 and swaps against little endianness depending on platform
* and advances the current position
*
* @return The value at the current address
*/
atUint32 readUint32Little() {
atUint32 val = 0;
readUBytesToBuf(&val, 4);
return utility::LittleUint32(val);
}
template <class T>
atInt32 readValLittle(std::enable_if_t<std::is_same_v<T, atUint32>>* = nullptr) {
return readUint32Little();
}
/** @brief Reads a Uint32 and swaps against big endianness depending on platform
* and advances the current position
*
* @return The value at the current address
*/
atUint32 readUint32Big() {
atUint32 val = 0;
readUBytesToBuf(&val, 4);
return utility::BigUint32(val);
}
template <class T>
atUint32 readValBig(std::enable_if_t<std::is_same_v<T, atUint32>>* = nullptr) {
return readUint32Big();
}
/** @brief Reads a Int64 and swaps to endianness specified by setEndian depending on platform
* and advances the current position
*
* @return The value at the current address
*/
atInt64 readInt64() {
atInt64 val = 0;
readUBytesToBuf(&val, 8);
return m_endian == Endian::Big ? utility::BigInt64(val) : utility::LittleInt64(val);
}
template <class T>
atInt64 readVal(std::enable_if_t<std::is_same_v<T, atInt64>>* = nullptr) {
return readInt64();
}
/** @brief Reads a Int64 and swaps against little endianness depending on platform
* and advances the current position
*
* @return The value at the current address
*/
atInt64 readInt64Little() {
atInt64 val = 0;
readUBytesToBuf(&val, 8);
return utility::LittleInt64(val);
}
template <class T>
atInt64 readValLittle(std::enable_if_t<std::is_same_v<T, atInt64>>* = nullptr) {
return readInt64Little();
}
/** @brief Reads a Int64 and swaps against big endianness depending on platform
* and advances the current position
*
* @return The value at the current address
*/
atInt64 readInt64Big() {
atInt64 val = 0;
readUBytesToBuf(&val, 8);
return utility::BigInt64(val);
}
template <class T>
atInt64 readValBig(std::enable_if_t<std::is_same_v<T, atInt64>>* = nullptr) {
return readInt64Big();
}
/** @brief Reads a Uint64 and swaps to endianness specified by setEndian depending on platform
* and advances the current position
*
* @return The value at the current address
*/
atUint64 readUint64() { return readInt64(); }
template <class T>
atUint64 readVal(std::enable_if_t<std::is_same_v<T, atUint64>>* = nullptr) {
return readUint64();
}
/** @brief Reads a Uint64 and swaps against little endianness depending on platform
* and advances the current position
*
* @return The value at the current address
*/
atUint64 readUint64Little() {
atUint64 val = 0;
readUBytesToBuf(&val, 8);
return utility::LittleUint64(val);
}
template <class T>
atUint64 readValLittle(std::enable_if_t<std::is_same_v<T, atUint64>>* = nullptr) {
return readUint64Little();
}
/** @brief Reads a Uint64 and swaps against big endianness depending on platform
* and advances the current position
*
* @return The value at the current address
*/
atUint64 readUint64Big() {
atUint64 val = 0;
readUBytesToBuf(&val, 8);
return utility::BigUint64(val);
}
template <class T>
atUint64 readValBig(std::enable_if_t<std::is_same_v<T, atUint64>>* = nullptr) {
return readUint64Big();
}
/** @brief Reads a float and swaps to endianness specified by setEndian depending on platform
* and advances the current position
*
* @return The value at the current address
*/
float readFloat() {
float val = 0.f;
readUBytesToBuf(&val, 4);
return m_endian == Endian::Big ? utility::BigFloat(val) : utility::LittleFloat(val);
}
template <class T>
float readVal(std::enable_if_t<std::is_same_v<T, float>>* = nullptr) {
return readFloat();
}
/** @brief Reads a float and swaps against little endianness depending on platform
* and advances the current position
*
* @return The value at the current address
*/
float readFloatLittle() {
float val = 0.f;
readUBytesToBuf(&val, 4);
return utility::LittleFloat(val);
}
template <class T>
float readValLittle(std::enable_if_t<std::is_same_v<T, float>>* = nullptr) {
return readFloatLittle();
}
/** @brief Reads a float and swaps against big endianness depending on platform
* and advances the current position
*
* @return The value at the current address
*/
float readFloatBig() {
float val = 0.f;
readUBytesToBuf(&val, 4);
return utility::BigFloat(val);
}
template <class T>
float readValBig(std::enable_if_t<std::is_same_v<T, float>>* = nullptr) {
return readFloatBig();
}
/** @brief Reads a double and swaps to endianness specified by setEndian depending on platform
* and advances the current position
*
* @return The value at the current address
*/
double readDouble() {
double val = 0.0;
readUBytesToBuf(&val, 8);
return m_endian == Endian::Big ? utility::BigDouble(val) : utility::LittleDouble(val);
}
template <class T>
double readVal(std::enable_if_t<std::is_same_v<T, double>>* = nullptr) {
return readDouble();
}
/** @brief Reads a double and swaps against little endianness depending on platform
* and advances the current position
*
* @return The value at the current address
*/
double readDoubleLittle() {
double val = 0.0;
readUBytesToBuf(&val, 8);
return utility::LittleDouble(val);
}
template <class T>
double readValLittle(std::enable_if_t<std::is_same_v<T, double>>* = nullptr) {
return readDoubleLittle();
}
/** @brief Reads a double and swaps against big endianness depending on platform
* and advances the current position
*
* @return The value at the current address
*/
double readDoubleBig() {
double val = 0.0;
readUBytesToBuf(&val, 8);
return utility::BigDouble(val);
}
template <class T>
double readValBig(std::enable_if_t<std::is_same_v<T, double>>* = nullptr) {
return readDoubleBig();
}
/** @brief Reads a bool and advances the current position
*
* @return The value at the current address
*/
bool readBool() {
atUint8 val = false;
readUBytesToBuf(&val, 1);
return val != 0;
}
template <class T>
bool readVal(std::enable_if_t<std::is_same_v<T, bool>>* = nullptr) {
return readBool();
}
template <class T>
bool readValLittle(std::enable_if_t<std::is_same_v<T, bool>>* = nullptr) {
return readBool();
}
template <class T>
bool readValBig(std::enable_if_t<std::is_same_v<T, bool>>* = nullptr) {
return readBool();
}
/** @brief Reads an atVec2f (8 bytes), swaps to endianness specified by setEndian depending on platform
* and advances the current position
*
* @return The value at the current address
*/
atVec2f readVec2f() {
simd_floats val = {};
readUBytesToBuf(val.data(), 8);
if (m_endian == Endian::Big) {
val[0] = utility::BigFloat(val[0]);
val[1] = utility::BigFloat(val[1]);
} else {
val[0] = utility::LittleFloat(val[0]);
val[1] = utility::LittleFloat(val[1]);
}
val[2] = 0.f;
val[3] = 0.f;
atVec2f s;
s.simd.copy_from(val);
return s;
}
template <class T>
atVec2f readVal(std::enable_if_t<std::is_same_v<T, atVec2f>>* = nullptr) {
return readVec2f();
}
/** @brief Reads an atVec2f (8 bytes), swaps against little endianness depending on platform
* and advances the current position
*
* @return The value at the current address
*/
atVec2f readVec2fLittle() {
simd_floats val = {};
readUBytesToBuf(val.data(), 8);
val[0] = utility::LittleFloat(val[0]);
val[1] = utility::LittleFloat(val[1]);
val[2] = 0.f;
val[3] = 0.f;
atVec2f s;
s.simd.copy_from(val);
return s;
}
template <class T>
atVec2f readValLittle(std::enable_if_t<std::is_same_v<T, atVec2f>>* = nullptr) {
return readVec2fLittle();
}
/** @brief Reads an atVec2f (8 bytes), swaps against big endianness depending on platform
* and advances the current position
*
* @return The value at the current address
*/
atVec2f readVec2fBig() {
simd_floats val = {};
readUBytesToBuf(val.data(), 8);
val[0] = utility::BigFloat(val[0]);
val[1] = utility::BigFloat(val[1]);
val[2] = 0.f;
val[3] = 0.f;
atVec2f s;
s.simd.copy_from(val);
return s;
}
template <class T>
atVec2f readValBig(std::enable_if_t<std::is_same_v<T, atVec2f>>* = nullptr) {
return readVec2fBig();
}
/** @brief Reads an atVec3f (12 bytes), swaps to endianness specified by setEndian depending on platform
* and advances the current position
*
* @return The value at the current address
*/
atVec3f readVec3f() {
simd_floats val = {};
readUBytesToBuf(val.data(), 12);
if (m_endian == Endian::Big) {
val[0] = utility::BigFloat(val[0]);
val[1] = utility::BigFloat(val[1]);
val[2] = utility::BigFloat(val[2]);
} else {
val[0] = utility::LittleFloat(val[0]);
val[1] = utility::LittleFloat(val[1]);
val[2] = utility::LittleFloat(val[2]);
}
val[3] = 0.f;
atVec3f s;
s.simd.copy_from(val);
return s;
}
template <class T>
atVec3f readVal(std::enable_if_t<std::is_same_v<T, atVec3f>>* = nullptr) {
return readVec3f();
}
/** @brief Reads an atVec3f (12 bytes), swaps against little endianness depending on platform
* and advances the current position
*
* @return The value at the current address
*/
atVec3f readVec3fLittle() {
simd_floats val = {};
readUBytesToBuf(val.data(), 12);
val[0] = utility::LittleFloat(val[0]);
val[1] = utility::LittleFloat(val[1]);
val[2] = utility::LittleFloat(val[2]);
val[3] = 0.f;
atVec3f s;
s.simd.copy_from(val);
return s;
}
template <class T>
atVec3f readValLittle(std::enable_if_t<std::is_same_v<T, atVec3f>>* = nullptr) {
return readVec3fLittle();
}
/** @brief Reads an atVec3f (12 bytes), swaps against big endianness depending on platform
* and advances the current position
*
* @return The value at the current address
*/
atVec3f readVec3fBig() {
simd_floats val = {};
readUBytesToBuf(val.data(), 12);
val[0] = utility::BigFloat(val[0]);
val[1] = utility::BigFloat(val[1]);
val[2] = utility::BigFloat(val[2]);
val[3] = 0.f;
atVec3f s;
s.simd.copy_from(val);
return s;
}
template <class T>
atVec3f readValBig(std::enable_if_t<std::is_same_v<T, atVec3f>>* = nullptr) {
return readVec3fBig();
}
/** @brief Reads an atVec4f (16 bytes), swaps to endianness specified by setEndian depending on platform
* and advances the current position
*
* @return The value at the current address
*/
atVec4f readVec4f() {
simd_floats val = {};
readUBytesToBuf(val.data(), 16);
if (m_endian == Endian::Big) {
val[0] = utility::BigFloat(val[0]);
val[1] = utility::BigFloat(val[1]);
val[2] = utility::BigFloat(val[2]);
val[3] = utility::BigFloat(val[3]);
} else {
val[0] = utility::LittleFloat(val[0]);
val[1] = utility::LittleFloat(val[1]);
val[2] = utility::LittleFloat(val[2]);
val[3] = utility::LittleFloat(val[3]);
}
atVec4f s;
s.simd.copy_from(val);
return s;
}
template <class T>
atVec4f readVal(std::enable_if_t<std::is_same_v<T, atVec4f>>* = nullptr) {
return readVec4f();
}
/** @brief Reads an atVec4f (16 bytes), swaps against little endianness depending on platform
* and advances the current position
*
* @return The value at the current address
*/
atVec4f readVec4fLittle() {
simd_floats val = {};
readUBytesToBuf(val.data(), 16);
val[0] = utility::LittleFloat(val[0]);
val[1] = utility::LittleFloat(val[1]);
val[2] = utility::LittleFloat(val[2]);
val[3] = utility::LittleFloat(val[3]);
atVec4f s;
s.simd.copy_from(val);
return s;
}
template <class T>
atVec4f readValLittle(std::enable_if_t<std::is_same_v<T, atVec4f>>* = nullptr) {
return readVec4fLittle();
}
/** @brief Reads an atVec4f (16 bytes), swaps against big endianness depending on platform
* and advances the current position
*
* @return The value at the current address
*/
atVec4f readVec4fBig() {
simd_floats val = {};
readUBytesToBuf(val.data(), 16);
val[0] = utility::BigFloat(val[0]);
val[1] = utility::BigFloat(val[1]);
val[2] = utility::BigFloat(val[2]);
val[3] = utility::BigFloat(val[3]);
atVec4f s;
s.simd.copy_from(val);
return s;
}
template <class T>
atVec4f readValBig(std::enable_if_t<std::is_same_v<T, atVec4f>>* = nullptr) {
return readVec4fBig();
}
/** @brief Reads an atVec2d (16 bytes), swaps to endianness specified by setEndian depending on platform
* and advances the current position
*
* @return The value at the current address
*/
atVec2d readVec2d() {
simd_doubles val = {};
readUBytesToBuf(val.data(), 16);
if (m_endian == Endian::Big) {
val[0] = utility::BigDouble(val[0]);
val[1] = utility::BigDouble(val[1]);
} else {
val[0] = utility::LittleDouble(val[0]);
val[1] = utility::LittleDouble(val[1]);
}
val[2] = 0.0;
val[3] = 0.0;
atVec2d s;
s.simd.copy_from(val);
return s;
}
template <class T>
atVec2d readVal(std::enable_if_t<std::is_same_v<T, atVec2d>>* = nullptr) {
return readVec2d();
}
/** @brief Reads an atVec2d (16 bytes), swaps against little endianness depending on platform
* and advances the current position
*
* @return The value at the current address
*/
atVec2d readVec2dLittle() {
simd_doubles val = {};
readUBytesToBuf(val.data(), 16);
val[0] = utility::LittleDouble(val[0]);
val[1] = utility::LittleDouble(val[1]);
val[2] = 0.0;
val[3] = 0.0;
atVec2d s;
s.simd.copy_from(val);
return s;
}
template <class T>
atVec2d readValLittle(std::enable_if_t<std::is_same_v<T, atVec2d>>* = nullptr) {
return readVec2dLittle();
}
/** @brief Reads an atVec2d (16 bytes), swaps against big endianness depending on platform
* and advances the current position
*
* @return The value at the current address
*/
atVec2d readVec2dBig() {
simd_doubles val = {};
readUBytesToBuf(val.data(), 16);
val[0] = utility::BigDouble(val[0]);
val[1] = utility::BigDouble(val[1]);
val[2] = 0.0;
val[3] = 0.0;
atVec2d s;
s.simd.copy_from(val);
return s;
}
template <class T>
atVec2d readValBig(std::enable_if_t<std::is_same_v<T, atVec2d>>* = nullptr) {
return readVec2dBig();
}
/** @brief Reads an atVec3d (24 bytes), swaps to endianness specified by setEndian depending on platform
* and advances the current position
*
* @return The value at the current address
*/
atVec3d readVec3d() {
simd_doubles val = {};
readUBytesToBuf(val.data(), 24);
if (m_endian == Endian::Big) {
val[0] = utility::BigDouble(val[0]);
val[1] = utility::BigDouble(val[1]);
val[2] = utility::BigDouble(val[2]);
} else {
val[0] = utility::LittleDouble(val[0]);
val[1] = utility::LittleDouble(val[1]);
val[2] = utility::LittleDouble(val[2]);
}
val[3] = 0.0;
atVec3d s;
s.simd.copy_from(val);
return s;
}
template <class T>
atVec3d readVal(std::enable_if_t<std::is_same_v<T, atVec3d>>* = nullptr) {
return readVec3d();
}
/** @brief Reads an atVec3d (24 bytes), swaps against little endianness depending on platform
* and advances the current position
*
* @return The value at the current address
*/
atVec3d readVec3dLittle() {
simd_doubles val = {};
readUBytesToBuf(val.data(), 24);
val[0] = utility::LittleDouble(val[0]);
val[1] = utility::LittleDouble(val[1]);
val[2] = utility::LittleDouble(val[2]);
val[3] = 0.0;
atVec3d s;
s.simd.copy_from(val);
return s;
}
template <class T>
atVec3d readValLittle(std::enable_if_t<std::is_same_v<T, atVec3d>>* = nullptr) {
return readVec3dLittle();
}
/** @brief Reads an atVec3d (24 bytes), swaps against big endianness depending on platform
* and advances the current position
*
* @return The value at the current address
*/
atVec3d readVec3dBig() {
simd_doubles val = {};
readUBytesToBuf(val.data(), 24);
val[0] = utility::BigDouble(val[0]);
val[1] = utility::BigDouble(val[1]);
val[2] = utility::BigDouble(val[2]);
val[3] = 0.0;
atVec3d s;
s.simd.copy_from(val);
return s;
}
template <class T>
atVec3d readValBig(std::enable_if_t<std::is_same_v<T, atVec3d>>* = nullptr) {
return readVec3dBig();
}
/** @brief Reads an atVec4d (32 bytes), swaps to endianness specified by setEndian depending on platform
* and advances the current position
*
* @return The value at the current address
*/
atVec4d readVec4d() {
simd_doubles val = {};
readUBytesToBuf(val.data(), 32);
if (m_endian == Endian::Big) {
val[0] = utility::BigDouble(val[0]);
val[1] = utility::BigDouble(val[1]);
val[2] = utility::BigDouble(val[2]);
val[3] = utility::BigDouble(val[3]);
} else {
val[0] = utility::LittleDouble(val[0]);
val[1] = utility::LittleDouble(val[1]);
val[2] = utility::LittleDouble(val[2]);
val[3] = utility::LittleDouble(val[3]);
}
atVec4d s;
s.simd.copy_from(val);
return s;
}
template <class T>
atVec4d readVal(std::enable_if_t<std::is_same_v<T, atVec4d>>* = nullptr) {
return readVec4d();
}
/** @brief Reads an atVec4d (32 bytes), swaps against little endianness depending on platform
* and advances the current position
*
* @return The value at the current address
*/
atVec4d readVec4dLittle() {
simd_doubles val = {};
readUBytesToBuf(val.data(), 32);
val[0] = utility::LittleDouble(val[0]);
val[1] = utility::LittleDouble(val[1]);
val[2] = utility::LittleDouble(val[2]);
val[3] = utility::LittleDouble(val[3]);
atVec4d s;
s.simd.copy_from(val);
return s;
}
template <class T>
atVec4d readValLittle(std::enable_if_t<std::is_same_v<T, atVec4d>>* = nullptr) {
return readVec4dLittle();
}
/** @brief Reads an atVec4d (32 bytes), swaps against big endianness depending on platform
* and advances the current position
*
* @return The value at the current address
*/
atVec4d readVec4dBig() {
simd_doubles val = {};
readUBytesToBuf(val.data(), 32);
val[0] = utility::BigDouble(val[0]);
val[1] = utility::BigDouble(val[1]);
val[2] = utility::BigDouble(val[2]);
val[3] = utility::BigDouble(val[3]);
atVec4d s;
s.simd.copy_from(val);
return s;
}
template <class T>
atVec4d readValBig(std::enable_if_t<std::is_same_v<T, atVec4d>>* = nullptr) {
return readVec4dBig();
}
/** @brief Reads a string and advances the position in the file
*
* @param fixedLen If non-negative, this is a fixed-length string read.
* @param doSeek Whether or not to reset the advanced position of the file.
* This is ignored if fixedLen is less than or equal to zero.
*
* @return The read string
*/
std::string readString(atInt32 fixedLen = -1, bool doSeek = true) {
if (fixedLen == 0)
return std::string();
std::string ret;
atUint8 chr = readByte();
atInt32 i;
for (i = 1; chr != 0; ++i) {
ret += chr;
if (fixedLen > 0 && i >= fixedLen)
break;
chr = readByte();
}
if (doSeek && fixedLen > 0 && i < fixedLen)
seek(fixedLen - i);
return ret;
}
template <class T>
std::string readVal(std::enable_if_t<std::is_same_v<T, std::string>>* = nullptr) {
return readString();
}
/** @brief Reads a wstring and advances the position in the file
*
* @param fixedLen If non-negative, this is a fixed-length string read.
* @param doSeek Whether or not to reset the advanced position of the file.
* This is ignored if fixedLen is less than or equal to zero.
*
* @return The read wstring
*/
std::wstring readWString(atInt32 fixedLen = -1, bool doSeek = true) {
if (fixedLen == 0)
return std::wstring();
std::wstring ret;
atUint16 chr = readUint16();
atInt32 i;
for (i = 1; chr != 0; ++i) {
ret += chr;
if (fixedLen > 0 && i >= fixedLen)
break;
chr = readUint16();
}
if (doSeek && fixedLen > 0 && i < fixedLen)
seek(fixedLen - i);
return ret;
}
template <class T>
std::wstring readVal(std::enable_if_t<std::is_same_v<T, std::wstring>>* = nullptr) {
return readWString();
}
/** @brief Reads a wstring assuming little-endian characters
* and advances the position in the file
*
* @param fixedLen If non-negative, this is a fixed-length string read.
* @param doSeek Whether or not to reset the advanced position of the file.
* This is ignored if fixedLen is less than or equal to zero.
*
* @return The read wstring
*/
std::wstring readWStringLittle(atInt32 fixedLen = -1, bool doSeek = true) {
if (fixedLen == 0)
return std::wstring();
std::wstring ret;
atUint16 chr = readUint16Little();
atInt32 i;
for (i = 1; chr != 0; ++i) {
ret += chr;
if (fixedLen > 0 && i >= fixedLen)
break;
chr = readUint16Little();
}
if (doSeek && fixedLen > 0 && i < fixedLen)
seek(fixedLen - i);
return ret;
}
template <class T>
std::wstring readValLittle(std::enable_if_t<std::is_same_v<T, std::wstring>>* = nullptr) {
return readWStringLittle();
}
/** @brief Reads a wstring assuming big-endian characters
* and advances the position in the file
*
* @param fixedLen If non-negative, this is a fixed-length string read
* @param doSeek Whether or not to reset the advanced position of the file.
* This is ignored if fixedLen is less than or equal to zero.
*
* @return The read wstring
*/
std::wstring readWStringBig(atInt32 fixedLen = -1, bool doSeek = true) {
if (fixedLen == 0)
return std::wstring();
std::wstring ret;
atUint16 chr = readUint16Big();
atInt32 i;
for (i = 1; chr != 0; ++i) {
ret += chr;
if (fixedLen > 0 && i >= fixedLen)
break;
chr = readUint16Big();
}
if (doSeek && fixedLen > 0 && i < fixedLen)
seek(fixedLen - i);
return ret;
}
template <class T>
std::wstring readValBig(std::enable_if_t<std::is_same_v<T, std::wstring>>* = nullptr) {
return readWStringBig();
}
/** @brief Reads a u16string assuming big-endian characters
* and advances the position in the file
*
* @param fixedLen If non-negative, this is a fixed-length string read.
* @param doSeek Whether or not to reset the advanced position of the file.
* This is ignored if fixedLen is less than or equal to zero.
*
* @return The read wstring
*/
std::u16string readU16StringBig(atInt32 fixedLen = -1, bool doSeek = true) {
if (fixedLen == 0)
return std::u16string();
std::u16string ret;
char16_t chr = readUint16Big();
atInt32 i;
for (i = 1; chr != 0; ++i) {
ret += chr;
if (fixedLen > 0 && i >= fixedLen)
break;
chr = readUint16Big();
}
if (doSeek && fixedLen > 0 && i < fixedLen)
seek(fixedLen - i);
return ret;
}
template <class T>
std::u16string readValBig(std::enable_if_t<std::is_same_v<T, std::u16string>>* = nullptr) {
return readU16StringBig();
}
/** @brief Reads a u32string assuming big-endian characters
* and advances the position in the file
*
* @param fixedLen If non-negative, this is a fixed-length string read.
* @param doSeek Whether or not to reset the advanced position of the file.
* This is ignored if fixedLen is less than or equal to zero.
*
* @return The read wstring
*/
std::u32string readU32StringBig(atInt32 fixedLen = -1, bool doSeek = true) {
if (fixedLen == 0)
return std::u32string();
std::u32string ret;
char32_t chr = readUint32Big();
atInt32 i;
for (i = 1; chr != 0; ++i) {
ret += chr;
if (fixedLen > 0 && i >= fixedLen)
break;
chr = readUint32Big();
}
if (doSeek && fixedLen > 0 && i < fixedLen)
seek(fixedLen - i);
return ret;
}
template <class T>
std::u32string readValBig(std::enable_if_t<std::is_same_v<T, std::u32string>>* = nullptr) {
return readU32StringBig();
}
/** @brief Performs automatic std::vector enumeration reads using numeric type T
*
* @param vector The std::vector to clear and populate using read data
* @param count The number of elements to read into vector
*
* Endianness is set with setEndian
*/
template <class T>
void enumerate(std::vector<T>& vector, size_t count,
std::enable_if_t<std::is_arithmetic_v<T> || std::is_same_v<T, atVec2f> || std::is_same_v<T, atVec3f> ||
std::is_same_v<T, atVec4f>>* = nullptr) {
vector.clear();
vector.reserve(count);
for (size_t i = 0; i < count; ++i)
vector.push_back(readVal<T>());
}
/** @brief Performs automatic std::vector enumeration reads using numeric type T
*
* @param vector The std::vector to clear and populate using read data
* @param count The number of elements to read into vector
*
* Endianness is little
*/
template <class T>
void enumerateLittle(std::vector<T>& vector, size_t count,
std::enable_if_t<std::is_arithmetic_v<T> || std::is_same_v<T, atVec2f> ||
std::is_same_v<T, atVec3f> || std::is_same_v<T, atVec4f>>* = nullptr) {
vector.clear();
vector.reserve(count);
for (size_t i = 0; i < count; ++i)
vector.push_back(readValLittle<T>());
}
/** @brief Performs automatic std::vector enumeration reads using numeric type T
*
* @param vector The std::vector to clear and populate using read data
* @param count The number of elements to read into vector
*
* Endianness is big
*/
template <class T>
void enumerateBig(std::vector<T>& vector, size_t count,
std::enable_if_t<std::is_arithmetic_v<T> || std::is_same_v<T, atVec2f> ||
std::is_same_v<T, atVec3f> || std::is_same_v<T, atVec4f>>* = nullptr) {
vector.clear();
vector.reserve(count);
for (size_t i = 0; i < count; ++i)
vector.push_back(readValBig<T>());
}
/** @brief Performs automatic std::vector enumeration reads using non-numeric type T
*
* @param vector The std::vector to clear and populate using read data
* @param count The number of elements to read into vector
*/
template <class T>
void enumerate(std::vector<T>& vector, size_t count,
std::enable_if_t<!std::is_arithmetic_v<T> && !std::is_same_v<T, atVec2f> &&
!std::is_same_v<T, atVec3f> && !std::is_same_v<T, atVec4f>>* = nullptr) {
vector.clear();
vector.reserve(count);
for (size_t i = 0; i < count; ++i) {
vector.emplace_back();
vector.back().read(*this);
}
}
/** @brief Performs lambda-assisted std::vector enumeration reads using type T
*
* @param vector The std::vector to clear and populate using read data
* @param count The number of elements to read into vector
* @param readf Function (e.g. a lambda) that reads *one* element and
* assigns the value through the second argument
*/
template <class T>
void enumerate(std::vector<T>& vector, size_t count, std::function<void(IStreamReader&, T&)> readf) {
vector.clear();
vector.reserve(count);
for (size_t i = 0; i < count; ++i) {
vector.emplace_back();
readf(*this, vector.back());
}
}
};
template <typename T>
IStreamReader& operator>>(IStreamReader& lhs, T& rhs) {
rhs = lhs.readVal<T>();
return lhs;
}
} // namespace athena::io