1 /* 2 * Copyright (C) 2011 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 #ifndef _GL_FIXED_OPS_H 17 #define _GL_FIXED_OPS_H 18 19 #define X2F(x) (((float)(x))/65536.0f) 20 #define X2D(x) (((double)(x))/65536.0) 21 #define X2I(x) ((x) /65536) 22 #define B2S(x) ((short)x) 23 24 25 #define F2X(d) ((d) > 32767.65535 ? 32767 * 65536 + 65535 : \ 26 (d) < -32768.65535 ? -32768 * 65536 + 65535 : \ 27 ((GLfixed) ((d) * 65536))) 28 29 #define I2X(d) ((d)*65536) 30 31 #endif 32
