bool VertexDeclaration::push_back(const VertexElement& element)
{
if (has(element.usage())) return false;
_usageMask = _usageMask | vertexAttributeUsageMask(element.usage());
_totalSize += vertexAttributeTypeSize(element.type());
_list.push_back(element);
if (_interleaved)
{
for (auto& i : _list)
i.setStride(static_cast<int>(_totalSize));
}
return true;
}
uint32_t
VertexStream::id (const VertexElement& element)
{
uint32_t id = (1 << (element.usage() + 16));
if (element.usageIndex() >= 0)
{
id |= (1 << ((element.usageIndex()+1)));
}
//LOG ("Element Stream Id is " << id);
return id;
}
void RenderState::setVertexAttribPointer(const VertexElement& e, size_t baseIndex, bool force)
{
#if !defined(ET_CONSOLE_APPLICATION)
(void)force;
if (e.dataType() == DataType::Int)
{
glVertexAttribIPointer(GLuint(e.usage()), static_cast<GLint>(e.components()), dataTypeValue(e.dataType()),
e.stride(), reinterpret_cast<GLvoid*>(e.offset() + baseIndex));
}
else if (e.dataType() == DataType::Float)
{
glVertexAttribPointer(GLuint(e.usage()), static_cast<GLint>(e.components()), dataTypeValue(e.dataType()),
false, e.stride(), reinterpret_cast<GLvoid*>(e.offset() + baseIndex));
}
else
{
ET_FAIL("Unhandled vertex attribute data type.");
}
checkOpenGLError("glVertexAttribPointer");
#endif
}
bool
VertexElement::operator != (const VertexElement &src) const
{
if (_usageIndex != src.usageIndex())
return true;
if (_usage != src.usage())
return true;
if (_method != src.method())
return true;
if (_type != src.type())
return true;
if (_offset != src.offset())
return true;
if (_stream != src.stream())
return true;
return false;
}