Method getTextureUnitStateIndex

OgreMain/src/OgrePass.cpp:420–430

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    //-----------------------------------------------------------------------
    unsigned short Pass::getTextureUnitStateIndex(const TextureUnitState* state) const
    {
        OGRE_LOCK_MUTEX(mTexUnitChangeMutex);
        assert(state && "state is 0 in Pass::getTextureUnitStateIndex()");

        // only find index for state attached to this pass
        OgreAssert(state->getParent() == this, "TextureUnitState is not attached to this pass");
        auto i = std::find(mTextureUnitStates.begin(), mTextureUnitStates.end(), state);
        assert(i != mTextureUnitStates.end() && "state is supposed to attached to this pass");
        return static_cast<unsigned short>(std::distance(mTextureUnitStates.begin(), i));
    }

    //-----------------------------------------------------------------------
    Pass::TextureUnitStateIterator