PulseStudio/VoxelEngine
PulseStudio/VoxelEngine
1
1
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases 1 Wiki Activity

add StructMapper.setChars, getChars

Browse Source
This commit is contained in:
MihailRis 2024-08-29 12:32:41 +03:00
parent c67b867a31
commit b34fddbe94
3 changed files with 29 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

23
src/data/StructMapper.cpp
View File

@ -103,6 +103,18 @@ void StructMapping::setNumber(
}
}
void StructMapping::setChars(
ubyte* dst, std::string_view value, const std::string& name
) {
const auto& field = requreField(name);
if (field.type != FieldType::CHAR) {
throw std::runtime_error("'char' field type required");
}
auto ptr = reinterpret_cast<char*>(dst + field.offset);
std::memcpy(ptr, value.data(),
std::min(value.size(), static_cast<std::size_t>(field.elements)));
}
template<typename T>
static T get_int(const ubyte* src) {
return dataio::le2h(*reinterpret_cast<const T*>(src));
@ -160,3 +172,14 @@ number_t StructMapping::getNumber(
}
throw std::runtime_error("type error");
}
std::string_view StructMapping::getChars(
const ubyte* src, const std::string& name
) const {
const auto& field = requreField(name);
if (field.type != FieldType::CHAR) {
throw std::runtime_error("'char' field type required");
}
auto ptr = src + field.offset;
return std::string_view(reinterpret_cast<const char*>(ptr), field.elements);
}

2
src/data/StructMapper.hpp
View File

@ -57,9 +57,11 @@ namespace data {
integer_t getInteger(const ubyte* src, const std::string& name, int index=0) const;
number_t getNumber(const ubyte* src, const std::string& name, int index=0) const;
std::string_view getChars(const ubyte* src, const std::string& name) const;
void setInteger(ubyte* dst, integer_t value, const std::string& name, int index=0);
void setNumber(ubyte* dst, number_t value, const std::string& name, int index=0);
void setChars(ubyte* dst, std::string_view value, const std::string& name);
int size() const {
return totalSize;

5
test/data/StructMapper.cpp
View File

@ -9,7 +9,7 @@ TEST(StructMapper, ReadWrite) {
std::vector<Field> fields {
Field {FieldType::I8, "a", 1},
Field {FieldType::I32, "b", 1},
Field {FieldType::CHAR, "s", 4},
Field {FieldType::F32, "f", 1},
};
auto mapping = StructMapping::create(fields);
@ -20,4 +20,7 @@ TEST(StructMapper, ReadWrite) {
mapping.setNumber(buffer, 3.141592f, "f");
EXPECT_FLOAT_EQ(mapping.getNumber(buffer, "f"), 3.141592f);
mapping.setChars(buffer, "hello", "s");
EXPECT_EQ(mapping.getChars(buffer, "s"), "hell");
}