// 存在第二次拿拿不到的情况，所以把拿到的数据用一个static变量保存下来
public static int getTextureSize() {
if (textureSize > 0) {
return textureSize;
}
int[] params = new int[1];
GLES10.glGetIntegerv(GLES10.GL_MAX_TEXTURE_SIZE, params, 0);
textureSize = params[0];
return textureSize;
}
@Override
protected void onDraw(Canvas canvas) {
// TODO Auto-generated method stub
if (mMaxSize == 0) {
int[] maxTextureSize = new int[1];
GLES10.glGetIntegerv(GLES10.GL_MAX_TEXTURE_SIZE, maxTextureSize, 0);
mMaxSize = maxTextureSize[0];
if (mListener != null) {
mListener.OnMaxSizeChange();
}
}
super.onDraw(canvas);
}
public static int getSupportedMaxPictureSize() {
int[] array = new int[1];
GLES10.glGetIntegerv(GLES10.GL_MAX_TEXTURE_SIZE, array, 0);
try {
if (array[0] == 0) {
GLES11.glGetIntegerv(GLES11.GL_MAX_TEXTURE_SIZE, array, 0);
if (array[0] == 0) {
GLES20.glGetIntegerv(GLES20.GL_MAX_TEXTURE_SIZE, array, 0);
if (array[0] == 0) {
GLES30.glGetIntegerv(GLES30.GL_MAX_TEXTURE_SIZE, array, 0);
}
}
}
} catch (NoClassDefFoundError e) {
// Ignore the exception
}
return array[0] != 0 ? array[0] : 2048;
}
private int getMaxTextureSize() {
// The OpenGL texture size is the maximum size that can be drawn in an ImageView
int[] maxSize = new int[1];
GLES10.glGetIntegerv(GLES10.GL_MAX_TEXTURE_SIZE, maxSize, 0);
return maxSize[0];
}