99 lines
2.3 KiB
C++
99 lines
2.3 KiB
C++
// Copyright (C) 2020 Jérôme Leclercq
|
|
// This file is part of the "Nazara Engine - Renderer module"
|
|
// For conditions of distribution and use, see copyright notice in Config.hpp
|
|
|
|
#include <Nazara/Renderer/SpirvWriter.hpp>
|
|
#include <cassert>
|
|
#include <type_traits>
|
|
#include <Nazara/Renderer/Debug.hpp>
|
|
|
|
namespace Nz
|
|
{
|
|
inline std::size_t SpirvWriter::Append(const char* str)
|
|
{
|
|
return Append(std::string_view(str));
|
|
}
|
|
|
|
inline std::size_t SpirvWriter::Append(const std::string_view& str)
|
|
{
|
|
std::size_t offset = GetOutputOffset();
|
|
|
|
std::size_t size4 = CountWord(str);
|
|
for (std::size_t i = 0; i < size4; ++i)
|
|
{
|
|
UInt32 codepoint = 0;
|
|
for (std::size_t j = 0; j < 4; ++j)
|
|
{
|
|
std::size_t pos = i * 4 + j;
|
|
if (pos < str.size())
|
|
codepoint |= UInt32(str[pos]) << (j * 8);
|
|
}
|
|
|
|
Append(codepoint);
|
|
}
|
|
|
|
return offset;
|
|
}
|
|
|
|
inline std::size_t SpirvWriter::Append(const std::string& str)
|
|
{
|
|
return Append(std::string_view(str));
|
|
}
|
|
|
|
inline std::size_t SpirvWriter::Append(std::initializer_list<UInt32> codepoints)
|
|
{
|
|
std::size_t offset = GetOutputOffset();
|
|
|
|
for (UInt32 cp : codepoints)
|
|
Append(cp);
|
|
|
|
return offset;
|
|
}
|
|
|
|
template<typename ...Args>
|
|
inline std::size_t SpirvWriter::Append(Opcode opcode, const Args&... args)
|
|
{
|
|
unsigned int wordCount = 1 + (CountWord(args) + ... + 0);
|
|
std::size_t offset = Append(opcode, wordCount);
|
|
if constexpr (sizeof...(args) > 0)
|
|
(Append(args), ...);
|
|
|
|
return offset;
|
|
}
|
|
|
|
template<typename T>
|
|
inline std::size_t SpirvWriter::Append(T value)
|
|
{
|
|
return Append(static_cast<UInt32>(value));
|
|
}
|
|
|
|
template<typename T>
|
|
inline unsigned int SpirvWriter::CountWord(const T& value)
|
|
{
|
|
return 1;
|
|
}
|
|
|
|
template<typename T1, typename T2, typename ...Args>
|
|
unsigned int SpirvWriter::CountWord(const T1& value, const T2& value2, const Args&... rest)
|
|
{
|
|
return CountWord(value) + CountWord(value2) + (CountWord(rest) + ...);
|
|
}
|
|
|
|
inline unsigned int SpirvWriter::CountWord(const char* str)
|
|
{
|
|
return CountWord(std::string_view(str));
|
|
}
|
|
|
|
inline unsigned int Nz::SpirvWriter::CountWord(const std::string& str)
|
|
{
|
|
return CountWord(std::string_view(str));
|
|
}
|
|
|
|
inline unsigned int SpirvWriter::CountWord(const std::string_view& str)
|
|
{
|
|
return (static_cast<unsigned int>(str.size() + 1) + sizeof(UInt32) - 1) / sizeof(UInt32); //< + 1 for null character
|
|
}
|
|
}
|
|
|
|
#include <Nazara/Renderer/DebugOff.hpp>
|