各大gpu壓縮紋理對比 https://software.intel.com/en-us/android/articles/android-texture-comPRession http://imgtec.eetrend.com/blog/2213 http://gad.QQ.com/article/detail/6503

重要的點

判斷是否支持PVRTC格式的壓縮紋理 return (extensions.find(“GL_IMG_texture_compression_pvrtc”)!= string::npos);