Returns length bytes or <b>negative value</b> if length is unknown. @return bytes length @throws ProxyCacheException if error occur while fetching so

Opens source. Source should be open before using {@link #read(byte[])} @param offset offset in bytes for source. @throws ProxyCacheException if error

Builds new instance of {@link HttpProxyCacheServer}. @return proxy cache. Only single instance should be used across whole app.

给顶点着色器的Attribute属性的变量赋值 @param dataOffset @param location @param count @param stride

翻转矩阵 @param m @param needFlipX 翻转X轴？ @param needFlipY 翻转X轴？ @return

获取屏幕高 @return

获取手机屏幕宽度 @return

Loads a texture from a resource ID, returning the OpenGL ID for that texture. Returns 0 if the load failed. @param context @param resourceId @return

添加粒子到FloatBuffer @param position 位置 @param color 颜色 @param direction 运动矢量 @param particStartTime 开始时间

获取当前缓存文件的长度 @return @throws ProxyCacheException

Compiles a shader, returning the OpenGL object ID.

Compiles a shader, returning the OpenGL object ID.

Compiles a shader, returning the OpenGL object ID.

通过对比得到与宽高比最接近的预览尺寸（如果有相同尺寸，优先选择） @param isPortrait 是否竖屏 @param surfaceWidth 需要被进行对比的原宽 @param surfaceHeight 需要被进行对比的原高 @param preSizeList 需要对比的预览尺寸列表

Gets the filters. @return the filters