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Make Version more space efficient

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This commit is contained in:
Georg Hagen
2025-10-28 16:39:11 +01:00
parent c1a7a3a4e4
commit a72f7ec501
3 changed files with 299 additions and 35 deletions
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65
openVulkanoCpp/Base/Version.cpp
View File

@@ -43,7 +43,7 @@ namespace OpenVulkano
}
private:
static int ToNumber(std::string_view numberStr)
static int ToNumber(const std::string_view numberStr)
{
if (numberStr.empty()) return 0;
int tmp = 0;
@@ -55,7 +55,7 @@ namespace OpenVulkano
{
do
{
size_t blockStart = offset;
const size_t blockStart = offset;
while (versionStr.size() > offset && versionStr[offset] >= '0' && versionStr[offset] <= '9') offset++;
comps.push_back(ToNumber(versionStr.substr(blockStart, offset - blockStart)));
if (offset < versionStr.size() && versionStr[offset] != '.') break;
@@ -67,7 +67,7 @@ namespace OpenVulkano
{
do
{
size_t blockStart = offset;
const size_t blockStart = offset;
while (versionStr.size() > offset && versionStr[offset] != '-' && versionStr[offset] != ' ' && versionStr[offset] != '\0') offset++;
tags.emplace_back(versionStr.data() + blockStart, offset - blockStart);
if (offset >= versionStr.size() || versionStr[offset] == ' ' || versionStr[offset] == '\0') break;
@@ -92,14 +92,7 @@ namespace OpenVulkano
}
}
Version::Version(uint32_t major, uint32_t minor, uint32_t patch, const uint32_t build)
: m_versionComponents(build ? std::initializer_list{major, minor, patch, build} : std::initializer_list{major, minor, patch})
, m_buildNumber(build)
, m_versionString(ToString(major, minor, patch, build))
{}
Version::Version(std::string_view versionString, bool ignoreTags)
: m_versionString(versionString)
VersionDataExtendedData::VersionDataExtendedData(const std::string_view& versionString, const bool ignoreTags)
{
ComponentDecodeHolder helper(versionString);
if (!helper.appleBuildComponents.empty())
@@ -115,11 +108,11 @@ namespace OpenVulkano
{
if (std::regex_match(tag, tagRegex))
{
auto t = ReadTagValue(tag);
if (t.first == 't' || t.first == 'T')
m_timestamp = t.second;
const auto [fst, snd] = ReadTagValue(tag);
if (fst == 't' || fst == 'T')
m_timestamp = snd;
else
m_buildNumber = t.second;
m_buildNumber = snd;
}
}
}
@@ -133,34 +126,54 @@ namespace OpenVulkano
}
}
Version::Version(uint32_t major, uint32_t minor, uint32_t patch, const uint32_t build)
: m_data(VersionDataCompact(major, minor, patch, build))
, m_versionString(ToString(major, minor, patch, build))
{}
Version::Version(const std::string_view versionString, const bool ignoreTags)
: m_versionString(versionString)
{
VersionDataExtendedData data(versionString, ignoreTags);
auto compact = data.GetCompactVersion();
if (compact)
m_data = compact.value();
else
m_data = std::move(data);
}
//region Compare functions
int Version::CompareBuildNr(const Version& other) const
{
if (m_buildNumber == 0 || other.m_buildNumber == 0) return 0;
if (m_buildNumber > other.m_buildNumber) return 1;
if (m_buildNumber < other.m_buildNumber) return -1;
const uint64_t build = Build(), otherBuild = other.Build();
if (build == 0 || otherBuild == 0) return 0;
if (build > otherBuild) return 1;
if (build < otherBuild) return -1;
return 0;
}
int Version::CompareTimestamp(const Version& other) const
{
if (m_timestamp == 0 || other.m_timestamp == 0) return 0;
if (m_timestamp > other.m_timestamp) return 1;
if (m_timestamp < other.m_timestamp) return -1;
const uint64_t ts = Timestamp(), oTs = other.Timestamp();
if (ts == 0 || oTs == 0) return 0;
if (ts > oTs) return 1;
if (ts < oTs) return -1;
return 0;
}
int Version::CompareComponents(const Version& other) const
{
size_t minCount = std::min(m_versionComponents.size(), other.m_versionComponents.size());
const auto comp = GetVersionComponents();
const auto otherComp = other.GetVersionComponents();
const size_t minCount = std::min(comp.size(), otherComp.size());
for(size_t i = 0; i < minCount; i++)
{
if (m_versionComponents[i] > other.m_versionComponents[i]) return 1;
if (m_versionComponents[i] < other.m_versionComponents[i]) return -1;
if (comp[i] > otherComp[i]) return 1;
if (comp[i] < otherComp[i]) return -1;
}
if (m_versionComponents.size() != other.m_versionComponents.size())
if (comp.size() != otherComp.size())
{
for(size_t i = minCount; i < std::max(m_versionComponents.size(), other.m_versionComponents.size()); i++)
for(size_t i = minCount; i < std::max(comp.size(), otherComp.size()); i++)
{
if (GetComponent(i) > other.GetComponent(i)) return 1;
if (GetComponent(i) < other.GetComponent(i)) return -1;

224
openVulkanoCpp/Base/Version.hpp
View File

@@ -10,16 +10,199 @@
#include <string>
#include <string_view>
#include <vector>
#include <span>
namespace OpenVulkano
{
class Version
struct VersionDataCompact
{
std::array<uint32_t, 4> m_versionComponents;
VersionDataCompact(const uint32_t major, const uint32_t minor, const uint32_t patch, const uint32_t build)
: m_versionComponents({major, minor, patch, build})
{}
[[nodiscard]] uint32_t GetComponent(const size_t compId) const
{
if (m_versionComponents.size() < compId + 1) return 0u;
return m_versionComponents[compId];
}
};
struct VersionDataExtendedData
{
std::vector<uint32_t> m_versionComponents;
std::vector<std::string> m_tagComponents;
uint64_t m_timestamp = 0, m_buildNumber = 0;
VersionDataExtendedData() = default;
VersionDataExtendedData(const std::string_view& versionString, bool ignoreTags);
[[nodiscard]] uint32_t GetComponent(const size_t compId) const
{
if (m_versionComponents.size() < compId + 1) return 0u;
return m_versionComponents[compId];
}
std::optional<VersionDataCompact> GetCompactVersion(const bool force = false) const
{
if (!force)
{
if (m_versionComponents.size() > 3 && m_buildNumber != 0) return {};
if (m_versionComponents.size() > 4 || !m_tagComponents.empty()) return {};
}
return VersionDataCompact(GetComponent(0), GetComponent(1), GetComponent(2), m_buildNumber ? m_buildNumber : GetComponent(3));
}
};
struct VersionDataExtended
{
std::array<uint32_t, 2> m_leadComponents;
std::unique_ptr<VersionDataExtendedData> m_data;
VersionDataExtended() : m_leadComponents({ UINT32_MAX, UINT32_MAX }), m_data(std::make_unique<VersionDataExtendedData>())
{}
VersionDataExtended(const VersionDataExtended& o) : m_leadComponents(o.m_leadComponents), m_data(std::make_unique<VersionDataExtendedData>(*o.m_data))
{}
VersionDataExtended(VersionDataExtended&& o) noexcept
: m_leadComponents(o.m_leadComponents), m_data(std::move(o.m_data))
{
o.m_leadComponents = { 0, 0 };
}
VersionDataExtended(VersionDataExtendedData&& data) :
m_leadComponents({ UINT32_MAX, UINT32_MAX }), m_data(std::make_unique<VersionDataExtendedData>(std::move(data)))
{}
VersionDataExtended& operator=(VersionDataExtended&& o) noexcept
{
m_leadComponents = std::move(o.m_leadComponents);
m_data = std::move(o.m_data);
o.m_data = nullptr;
o.m_leadComponents = { 0, 0 };
return *this;
}
VersionDataExtended& operator=(const VersionDataExtended& o)
{
m_leadComponents = o.m_leadComponents;
m_data = std::make_unique<VersionDataExtendedData>(*o.m_data);
return *this;
}
};
union VersionData
{
VersionDataCompact compact;
VersionDataExtended extended;
VersionData() { memset(&this->compact, 0, sizeof(VersionDataCompact)); }
VersionData(VersionData&& o) noexcept
{
if (o.IsExtended())
{
new (&extended) VersionDataExtended(std::move(o.extended));
}
else compact = o.compact;
}
VersionData(const VersionData& o)
{
if (o.IsExtended()) new (&extended)VersionDataExtended(o.extended);
else compact = o.compact;
}
VersionData(const VersionDataCompact& other) { new (&compact)VersionDataCompact(other); }
VersionData(VersionDataCompact&& other) { new (&compact) VersionDataCompact(std::move(other)); }
VersionData(const VersionDataExtended& other)
{
new (&extended)VersionDataExtended(other);
}
VersionData(VersionDataExtended&& other) { new (&extended) VersionDataExtended(std::move(other)); }
~VersionData()
{
if (IsExtended())
{
extended.~VersionDataExtended();
}
}
VersionData& operator =(const VersionDataCompact& other)
{
compact = other;
return *this;
}
VersionData& operator =(VersionDataExtendedData&& other)
{
extended.m_leadComponents = { UINT32_MAX, UINT32_MAX };
extended.m_data = std::make_unique<VersionDataExtendedData>(std::move(other));
return *this;
}
VersionData& operator =(VersionData&& other) noexcept
{
Clear();
if (other.IsExtended())
{
extended.m_leadComponents = { UINT32_MAX, UINT32_MAX };
extended.m_data = std::move(other.extended.m_data);
}
else
{
compact = other.compact;
}
return *this;
}
VersionData& operator =(const VersionData& other)
{
Clear();
if (other.IsExtended())
extended = other.extended;
else
compact = other.compact;
return *this;
}
bool IsExtended() const
{
return compact.m_versionComponents[0] > INT32_MAX;
}
uint64_t GetTimestamp() const
{
if (IsExtended()) return extended.m_data->m_timestamp;
return 0;
}
private:
void Clear()
{
if (IsExtended())
{
extended.~VersionDataExtended();
}
memset(&compact, 0, sizeof(compact));
}
};
class Version
{
VersionData m_data;
std::string m_versionString;
bool m_preRelease = false;
bool IsExtendedData() const
{
return m_data.compact.m_versionComponents[0] > INT32_MAX;
}
public:
Version() : Version(0, 0) {}
@@ -34,10 +217,16 @@ namespace OpenVulkano
explicit Version(double version);
Version(const Version& other) = default;
Version(Version&& other) = default;
Version& operator =(const Version& other) = default;
Version& operator=(Version&& other) = default;
[[nodiscard]] uint32_t GetComponent(const size_t compId) const
{
if (m_versionComponents.size() < compId + 1) return 0u;
return m_versionComponents[compId];
if (IsExtendedData())
return m_data.extended.m_data->GetComponent(compId);
return m_data.compact.GetComponent(compId);
}
[[nodiscard]] uint32_t Major() const { return GetComponent(0); }
@@ -46,13 +235,32 @@ namespace OpenVulkano
[[nodiscard]] uint32_t Patch() const { return GetComponent(2); }
[[nodiscard]] uint64_t Build() const { return m_buildNumber; }
[[nodiscard]] uint64_t Build() const
{
if (IsExtendedData()) return m_data.extended.m_data->m_buildNumber;
return m_data.compact.m_versionComponents[3];
}
[[nodiscard]] bool IsPreRelease() const { return m_preRelease; }
[[nodiscard]] uint64_t Timestamp() const
{
return m_data.GetTimestamp();
}
[[nodiscard]] const std::vector<std::string>& GetTags() const { return m_tagComponents; }
//[[nodiscard]] bool IsPreRelease() const { return m_preRelease; }
[[nodiscard]] const decltype(m_versionComponents)& GetVersionComponents() const { return m_versionComponents; }
[[nodiscard]] const std::vector<std::string>& GetTags() const
{
static std::vector<std::string> fallbackTags;
if (IsExtendedData())
return m_data.extended.m_data->m_tagComponents;
return fallbackTags;
}
[[nodiscard]] std::span<const uint32_t> GetVersionComponents() const
{
if (IsExtendedData()) return m_data.extended.m_data->m_versionComponents;
return m_data.compact.m_versionComponents;
}
//region Conversion operators
[[nodiscard]] explicit operator uint32_t() const { return (Major() << 20) | ((Minor() & 0x3FF) << 10) | (Patch() & 0x3FF); }