std::string Program::getActiveUniformName(GLuint uniformIndex) const
{
checkDirty();
GLint length = getActiveUniform(uniformIndex, GL_UNIFORM_NAME_LENGTH);
std::vector<char> name(length);
glGetActiveUniformName(id(), uniformIndex, length, nullptr, name.data());
return std::string(name.data(), length);
}
std::string Program::getActiveUniformName(const GLuint uniformIndex) const
{
checkDirty();
GLint length = getActiveUniform(uniformIndex, GL_UNIFORM_NAME_LENGTH);
assert(length > 1); // Has to include at least 1 char and '\0'
std::vector<char> name(length);
glGetActiveUniformName(id(), uniformIndex, length, nullptr, name.data());
// glGetActiveUniformName() insists we query '\0' as well, but it
// shouldn't be passed to std::string(), otherwise std::string::size()
// returns <actual size> + 1 (on clang)
auto numChars = length - 1;
return std::string(name.data(), numChars);
}