OpenGL es2.0 加载纹理图片和CubMap

public static int initTexture(int drawableId, Resources resources) {
int[] textures = new int[1];
GLES20.glGenTextures(1, textures, 0);
int textureId = textures[0];
GLES20.glBindTexture(GLES20.GL_TEXTURE_2D, textureId);
GLES20.glTexParameterf(GLES20.GL_TEXTURE_2D, GLES20.GL_TEXTURE_MIN_FILTER, GLES20.GL_LINEAR);
GLES20.glTexParameterf(GLES20.GL_TEXTURE_2D, GLES20.GL_TEXTURE_MAG_FILTER, GLES20.GL_LINEAR);
GLES20.glTexParameterf(GLES20.GL_TEXTURE_2D, GLES20.GL_TEXTURE_WRAP_S, GLES20.GL_REPEAT);
GLES20.glTexParameterf(GLES20.GL_TEXTURE_2D, GLES20.GL_TEXTURE_WRAP_T, GLES20.GL_REPEAT);

InputStream is = resources.openRawResource(drawableId);
Bitmap bitmapTmp;
try {
bitmapTmp = BitmapFactory.decodeStream(is);
} finally {
try {
is.close();
} catch (Exception e) {
// TODO: handle exception
e.printStackTrace();
}
}
GLUtils.texImage2D(GLES20.GL_TEXTURE_2D, 0, bitmapTmp, 0);
bitmapTmp.recycle();
return textureId;
}

public static int initCubeMap(int[] resourceIds, Resources resources) {
int[] ids = new int[1];
GLES20.glGenTextures(1, ids, 0);
int cubeMapTextureId = ids[0];
GLES20.glBindTexture(GLES20.GL_TEXTURE_CUBE_MAP, cubeMapTextureId);
GLES20.glTexParameterf(GLES20.GL_TEXTURE_CUBE_MAP, GLES20.GL_TEXTURE_MIN_FILTER, GLES20.GL_LINEAR);
GLES20.glTexParameterf(GLES20.GL_TEXTURE_CUBE_MAP, GLES20.GL_TEXTURE_MAG_FILTER, GLES20.GL_LINEAR);
GLES20.glTexParameterf(GLES20.GL_TEXTURE_CUBE_MAP, GLES20.GL_TEXTURE_WRAP_S, GLES20.GL_REPEAT);
GLES20.glTexParameterf(GLES20.GL_TEXTURE_CUBE_MAP, GLES20.GL_TEXTURE_WRAP_T, GLES20.GL_REPEAT);

for (int face = 0; face < 6; face++) {
InputStream is = resources.openRawResource(resourceIds[face]);
Bitmap bitmap;
try {
bitmap = BitmapFactory.decodeStream(is);
} finally {
try {
is.close();
} catch (Exception e) {
// TODO: handle exception
Log.e("CubeMap", "Could ont decode texture for face " + Integer.toString(face));
}
}
GLUtils.texImage2D(GLES20.GL_TEXTURE_CUBE_MAP_POSITIVE_X + face, 0, bitmap, 0);
bitmap.recycle();
}

return cubeMapTextureId;
}