Hash :
c5d19d76
Author :
Date :
2023-09-07T09:58:24
Reland "Load mUniformLocations using loadVector" This is a reland of commit 6f526b8f52d17bf89082a901f06df6edb75a7dbd Original change's description: > Load mUniformLocations using loadVector > > Bug: b/275102061 > Change-Id: I1da5bdd6bf0ec40cd877c2274a8fe1ee0b11267a > Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/4849551 > Reviewed-by: Roman Lavrov <romanl@google.com> > Reviewed-by: Shahbaz Youssefi <syoussefi@chromium.org> > Commit-Queue: Charlie Lao <cclao@google.com> Bug: b/275102061 Change-Id: If501db97a37b00104a9d16fc40200f772ffcd2fc Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/4856749 Reviewed-by: Shahbaz Youssefi <syoussefi@chromium.org> Commit-Queue: Charlie Lao <cclao@google.com>
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//
// Copyright 2012 The ANGLE Project Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
//
// BinaryStream.h: Provides binary serialization of simple types.
#ifndef COMMON_BINARYSTREAM_H_
#define COMMON_BINARYSTREAM_H_
#include <stdint.h>
#include <cstddef>
#include <string>
#include <vector>
#include "common/PackedEnums.h"
#include "common/angleutils.h"
#include "common/mathutil.h"
namespace gl
{
template <typename IntT>
struct PromotedIntegerType
{
using type = typename std::conditional<
std::is_signed<IntT>::value,
typename std::conditional<sizeof(IntT) <= 4, int32_t, int64_t>::type,
typename std::conditional<sizeof(IntT) <= 4, uint32_t, uint64_t>::type>::type;
};
class BinaryInputStream : angle::NonCopyable
{
public:
BinaryInputStream(const void *data, size_t length)
{
mError = false;
mOffset = 0;
mData = static_cast<const uint8_t *>(data);
mLength = length;
}
// readInt will generate an error for bool types
template <class IntT>
IntT readInt()
{
static_assert(!std::is_same<bool, std::remove_cv<IntT>()>(), "Use readBool");
using PromotedIntT = typename PromotedIntegerType<IntT>::type;
PromotedIntT value = 0;
read(&value);
ASSERT(angle::IsValueInRangeForNumericType<IntT>(value));
return static_cast<IntT>(value);
}
template <class IntT>
void readInt(IntT *outValue)
{
*outValue = readInt<IntT>();
}
template <class T>
void readVector(std::vector<T> *param)
{
static_assert(std::is_trivially_copyable<T>(), "must be memcpy-able");
ASSERT(param->empty());
size_t size = readInt<size_t>();
if (size > 0)
{
param->resize(size);
readBytes(reinterpret_cast<uint8_t *>(param->data()), param->size() * sizeof(T));
}
}
template <typename E, typename T>
void readPackedEnumMap(angle::PackedEnumMap<E, T> *param)
{
static_assert(std::is_trivially_copyable<T>(), "must be memcpy-able");
readBytes(reinterpret_cast<uint8_t *>(param->data()), param->size() * sizeof(T));
}
template <class T>
void readStruct(T *param)
{
static_assert(std::is_trivially_copyable<T>(), "must be memcpy-able");
readBytes(reinterpret_cast<uint8_t *>(param), sizeof(T));
}
template <class EnumT>
EnumT readEnum()
{
using UnderlyingType = typename std::underlying_type<EnumT>::type;
return static_cast<EnumT>(readInt<UnderlyingType>());
}
template <class EnumT>
void readEnum(EnumT *outValue)
{
*outValue = readEnum<EnumT>();
}
bool readBool()
{
int value = 0;
read(&value);
return (value > 0);
}
void readBool(bool *outValue) { *outValue = readBool(); }
void readBytes(unsigned char outArray[], size_t count) { read<unsigned char>(outArray, count); }
const unsigned char *getBytes(size_t count) { return read<unsigned char>(nullptr, count); }
std::string readString()
{
std::string outString;
readString(&outString);
return outString;
}
void readString(std::string *v)
{
size_t length;
readInt(&length);
if (mError)
{
return;
}
angle::CheckedNumeric<size_t> checkedOffset(mOffset);
checkedOffset += length;
if (!checkedOffset.IsValid() || mOffset + length > mLength)
{
mError = true;
return;
}
v->assign(reinterpret_cast<const char *>(mData) + mOffset, length);
mOffset = checkedOffset.ValueOrDie();
}
float readFloat()
{
float f;
read(&f, 1);
return f;
}
void skip(size_t length)
{
angle::CheckedNumeric<size_t> checkedOffset(mOffset);
checkedOffset += length;
if (!checkedOffset.IsValid() || mOffset + length > mLength)
{
mError = true;
return;
}
mOffset = checkedOffset.ValueOrDie();
}
size_t offset() const { return mOffset; }
size_t remainingSize() const
{
ASSERT(mLength >= mOffset);
return mLength - mOffset;
}
bool error() const { return mError; }
bool endOfStream() const { return mOffset == mLength; }
const uint8_t *data() { return mData; }
private:
bool mError;
size_t mOffset;
const uint8_t *mData;
size_t mLength;
template <typename T>
const uint8_t *read(T *v, size_t num)
{
static_assert(std::is_fundamental<T>::value, "T must be a fundamental type.");
angle::CheckedNumeric<size_t> checkedLength(num);
checkedLength *= sizeof(T);
if (!checkedLength.IsValid())
{
mError = true;
return nullptr;
}
angle::CheckedNumeric<size_t> checkedOffset(mOffset);
checkedOffset += checkedLength;
if (!checkedOffset.IsValid() || checkedOffset.ValueOrDie() > mLength)
{
mError = true;
return nullptr;
}
const uint8_t *srcBytes = mData + mOffset;
if (v != nullptr)
{
memcpy(v, srcBytes, checkedLength.ValueOrDie());
}
mOffset = checkedOffset.ValueOrDie();
return srcBytes;
}
template <typename T>
void read(T *v)
{
read(v, 1);
}
};
class BinaryOutputStream : angle::NonCopyable
{
public:
BinaryOutputStream();
~BinaryOutputStream();
// writeInt also handles bool types
template <class IntT>
void writeInt(IntT param)
{
static_assert(std::is_integral<IntT>::value, "Not an integral type");
static_assert(!std::is_same<bool, std::remove_cv<IntT>()>(), "Use writeBool");
using PromotedIntT = typename PromotedIntegerType<IntT>::type;
ASSERT(angle::IsValueInRangeForNumericType<PromotedIntT>(param));
PromotedIntT intValue = static_cast<PromotedIntT>(param);
write(&intValue, 1);
}
// Specialized writeInt for values that can also be exactly -1.
template <class UintT>
void writeIntOrNegOne(UintT param)
{
if (param == static_cast<UintT>(-1))
{
writeInt(-1);
}
else
{
writeInt(param);
}
}
template <class T>
void writeVector(const std::vector<T> ¶m)
{
static_assert(std::is_trivially_copyable<T>(), "must be memcpy-able");
writeInt(param.size());
if (param.size() > 0)
{
writeBytes(reinterpret_cast<const uint8_t *>(param.data()), param.size() * sizeof(T));
}
}
template <typename E, typename T>
void writePackedEnumMap(const angle::PackedEnumMap<E, T> ¶m)
{
static_assert(std::is_trivially_copyable<T>(), "must be memcpy-able");
writeBytes(reinterpret_cast<const uint8_t *>(param.data()), param.size() * sizeof(T));
}
template <class T>
void writeStruct(const T ¶m)
{
static_assert(!std::is_pointer<T>::value,
"Must pass in a struct, not the pointer to struct");
static_assert(std::is_trivially_copyable<T>(), "must be memcpy-able");
writeBytes(reinterpret_cast<const uint8_t *>(¶m), sizeof(T));
}
template <class EnumT>
void writeEnum(EnumT param)
{
using UnderlyingType = typename std::underlying_type<EnumT>::type;
writeInt<UnderlyingType>(static_cast<UnderlyingType>(param));
}
void writeString(const std::string &v)
{
writeInt(v.length());
write(v.c_str(), v.length());
}
void writeString(const char *v)
{
size_t len = strlen(v);
writeInt(len);
write(v, len);
}
void writeBytes(const unsigned char *bytes, size_t count) { write(bytes, count); }
void writeBool(bool value)
{
int intValue = value ? 1 : 0;
write(&intValue, 1);
}
void writeFloat(float value) { write(&value, 1); }
size_t length() const { return mData.size(); }
const void *data() const { return mData.size() ? &mData[0] : nullptr; }
const std::vector<uint8_t> &getData() const { return mData; }
private:
template <typename T>
void write(const T *v, size_t num)
{
static_assert(std::is_fundamental<T>::value, "T must be a fundamental type.");
const char *asBytes = reinterpret_cast<const char *>(v);
mData.insert(mData.end(), asBytes, asBytes + num * sizeof(T));
}
std::vector<uint8_t> mData;
};
inline BinaryOutputStream::BinaryOutputStream() {}
inline BinaryOutputStream::~BinaryOutputStream() = default;
} // namespace gl
#endif // COMMON_BINARYSTREAM_H_