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/*
** Copyright (c) 2018-2020 Valve Corporation
** Copyright (c) 2018-2020 LunarG, Inc.
**
** Permission is hereby granted, free of charge, to any person obtaining a
** copy of this software and associated documentation files (the "Software"),
** to deal in the Software without restriction, including without limitation
** the rights to use, copy, modify, merge, publish, distribute, sublicense,
** and/or sell copies of the Software, and to permit persons to whom the
** Software is furnished to do so, subject to the following conditions:
**
** The above copyright notice and this permission notice shall be included in
** all copies or substantial portions of the Software.
**
** THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
** IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
** FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
** AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
** LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
** FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
** DEALINGS IN THE SOFTWARE.
*/
#ifndef GFXRECON_DECODE_STRING_ARRAY_DECODER_H
#define GFXRECON_DECODE_STRING_ARRAY_DECODER_H
#include "decode/pointer_decoder_base.h"
#include "decode/decode_allocator.h"
#include "decode/value_decoder.h"
#include "format/format.h"
#include "util/defines.h"
#include <cassert>
#include <cwchar>
#include <memory>
GFXRECON_BEGIN_NAMESPACE(gfxrecon)
GFXRECON_BEGIN_NAMESPACE(decode)
template <typename CharT, typename EncodeT, format::PointerAttributes DecodeAttrib>
class BasicStringArrayDecoder : public PointerDecoderBase
{
public:
BasicStringArrayDecoder() {}
const uint32_t* GetStringAttributes() const { return string_attributes_; }
const uint64_t* GetStringAddresses() const { return string_addresses_; }
const size_t* GetStringLengths() const { return string_lengths_; }
const CharT* const* GetPointer() const { return strings_; }
size_t Decode(const uint8_t* buffer, size_t buffer_size)
{
size_t bytes_read = DecodeAttributes(buffer, buffer_size);
// We should only be decoding string arrays.
assert((GetAttributeMask() & (DecodeAttrib | format::PointerAttributes::kIsArray)) ==
(DecodeAttrib | format::PointerAttributes::kIsArray));
if (!IsNull() && HasData())
{
size_t len = GetLength();
strings_ = DecodeAllocator::Allocate<CharT*>(len);
string_attributes_ = DecodeAllocator::Allocate<uint32_t>(len);
string_addresses_ = DecodeAllocator::Allocate<uint64_t>(len);
string_lengths_ = DecodeAllocator::Allocate<size_t>(len);
for (size_t i = 0; i < len; ++i)
{
uint32_t attrib = 0;
bytes_read +=
ValueDecoder::DecodeUInt32Value((buffer + bytes_read), (buffer_size - bytes_read), &attrib);
if ((attrib & format::PointerAttributes::kIsNull) != format::PointerAttributes::kIsNull)
{
if ((attrib & format::PointerAttributes::kHasAddress) == format::PointerAttributes::kHasAddress)
{
bytes_read += ValueDecoder::DecodeAddress(
(buffer + bytes_read), (buffer_size - bytes_read), &string_addresses_[i]);
}
assert((attrib & DecodeAttrib) == DecodeAttrib);
size_t slen = 0;
bytes_read +=
ValueDecoder::DecodeSizeTValue((buffer + bytes_read), (buffer_size - bytes_read), &slen);
CharT* value = DecodeAllocator::Allocate<CharT>(slen + 1, false);
if (((attrib & format::PointerAttributes::kHasData) == format::PointerAttributes::kHasData))
{
bytes_read += ValueDecoder::DecodeArrayFrom<EncodeT>(
(buffer + bytes_read), (buffer_size - bytes_read), value, slen);
value[slen] = '\0';
}
else
{
value[0] = '\0';
}
strings_[i] = value;
string_lengths_[i] = slen;
}
else
{
strings_[i] = nullptr;
string_addresses_[i] = 0;
string_lengths_[i] = 0;
}
string_attributes_[i] = attrib;
}
}
return bytes_read;
}
private:
CharT** strings_{ nullptr };
uint32_t* string_attributes_{ nullptr };
uint64_t* string_addresses_{ nullptr };
size_t* string_lengths_{ nullptr };
};
typedef BasicStringArrayDecoder<char, format::CharEncodeType, format::PointerAttributes::kIsString> StringArrayDecoder;
typedef BasicStringArrayDecoder<wchar_t, format::WCharEncodeType, format::PointerAttributes::kIsWString>
WStringArrayDecoder;
GFXRECON_END_NAMESPACE(decode)
GFXRECON_END_NAMESPACE(gfxrecon)
#endif // GFXRECON_DECODE_STRING_ARRAY_DECODER_H
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