void
GlProgram::setUniforms() {
int i,index,len,size;
unsigned int type;
char *name = new char [m_MaxLength + 1];
GlUniform uni;
// set all types = NOT_USED
std::vector<GlUniform>::iterator it;
for(it = m_Uniforms.begin(); it != m_Uniforms.end(); it++) {
it->setType(GlUniform::NOT_USED);
}
// add new uniforms and reset types for previous uniforms
for (i = 0; i < m_NumUniforms; i++) {
glGetActiveUniform (m_P, i, m_MaxLength, &len, &size, &type, name);
std::string n (name);
index = findUniform (n);
if (-1 != index) {
m_Uniforms[index].setType (type);
m_Uniforms[index].setLoc (i);
}
else {
uni.reset();
std::string ProgName (name);
uni.setName (ProgName);
uni.setType (type);
uni.setLoc (i);
m_Uniforms.push_back (uni);
}
if (size > 1) {
for (int i = 0; i < size; i++) {
std::stringstream s;
s << n.c_str() << "[" << i << "]";
std::string Location = s.str();
index = findUniform (Location);
int loc;
loc = glGetUniformLocation(m_P, s.str().c_str());
if (-1 != index) {
m_Uniforms[index].setType (type);
m_Uniforms[index].setLoc (loc);
}
else {
uni.reset();
std::string ProgName (s.str());
uni.setName (ProgName);
uni.setType (type);
uni.setLoc (loc);
m_Uniforms.push_back (uni);
}
}
}
}
// delete all uniforms where type is NOT_USED
for(it = m_Uniforms.begin(), i = 0; it != m_Uniforms.end(); i++ ) {
if (it->getType() == GlUniform::NOT_USED) {
it = m_Uniforms.erase(it);
} else {
++it;
}
}
m_NumUniforms = m_Uniforms.size();
for (int i = 0; i < m_NumUniforms; i++) {
setValueOfUniform (i);
}
}
