bool vesMaterial::addAttribute(vesSharedPtr<vesMaterialAttribute> attribute)
{
if (!attribute) {
return false;
}
if (attribute->type() != vesMaterialAttribute::Texture &&
attribute->binding() == vesMaterialAttribute::BindAll) {
// Shader is a special attribute.
if (attribute->type() == vesMaterialAttribute::Shader) {
return this->setShaderProgram(std::tr1::static_pointer_cast<vesShaderProgram>(attribute));
}
// Everything else.
return this->m_internal->addAttribute(
this->m_internal->m_attributes, attribute);
}
else if(attribute->type() == vesMaterialAttribute::Texture) {
vesSharedPtr<vesTexture> texture = std::tr1::static_pointer_cast<vesTexture>(attribute);
// Cache last texture so that we can release graphics resources on it.
this->m_internal->m_textureAttributes[texture->textureUnit()] = texture;
return true;
}
else if(attribute->binding() == vesMaterialAttribute::BindMinimal)
{
return this->m_internal->addAttribute(
this->m_internal->m_minimalAttributes, attribute);
}
return false;
}
bool vesMaterial::vesInternal::addAttribute(
Attributes &attributes,
vesSharedPtr<vesMaterialAttribute> attribute)
{
if (!attribute) {
return false;
}
vesInternal::Attributes::iterator itr =
attributes.find(attribute->type());
if (itr == attributes.end() || ( (itr->second) != attribute )) {
attributes[attribute->type()] = attribute;
return true;
}
return false;
}
bool vesMaterial::setShaderProgram(vesSharedPtr<vesShaderProgram> shaderProgram)
{
if (!shaderProgram || shaderProgram == this->m_shaderProgram) {
return false;
}
this->m_shaderProgram = shaderProgram;
this->m_internal->m_attributes[shaderProgram->type()] =
this->m_shaderProgram;
return true;
}