Hello dear Friends,please help me,I am new to cocos2d-x and image Processing,Now, I want to deal with such a picture(1024x361,ARGB),there is an Alpha channel inside the picture, I would like to find out the alpha channel, so I can make objects(or sprite in the game) move along the alpha Channel, which is able to make the objects rise and fall on the map completedly, thank you very much.
cocos2d-x loads png in cocos2dx/platform/CCImage.cpp, but it doesn’t offer a method to retrieve the alpha data.
Hope this can help you.