libscaler/libscaler-common.h

   1 /*
   2  * Copyright (C) 2014 The Android Open Source Project
   3  * Copyright@ Samsung Electronics Co. LTD
   4  *
   5  * Licensed under the Apache License, Version 2.0 (the "License");
   6  * you may not use this file except in compliance with the License.
   7  * You may obtain a copy of the License at
   8  *
   9  *      http://www.apache.org/licenses/LICENSE-2.0
  10  *
  11  * Unless required by applicable law or agreed to in writing, software
  12  * distributed under the License is distributed on an "AS IS" BASIS,
  13  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  14  * See the License for the specific language governing permissions and
  15  * limitations under the License.
  16  */
  17
  18 /*!
  19  * \file      libscaler-common.h
  20  * \brief     source file for Scaler HAL
  21  * \author    Cho KyongHo <pullip.cho@samsung.com>
  22  * \date      2014/05/08
  23  *
  24  * <b>Revision History: </b>
  25  * - 2014.05.08 : Cho KyongHo (pullip.cho@samsung.com) \n
  26  *   Create
  27  */
  28 #ifndef _LIBSCALER_COMMON_H_
  29 #define _LIBSCALER_COMMON_H_
  30
  31 #define LOG_TAG "libexynosscaler"
  32 #include <cutils/log.h>
  33 #include <cerrno>
  34 #include <cstring>
  35
  36 //#define LOG_NDEBUG 0
  37
  38 #ifdef __GNUC__
  39 #  define __UNUSED__ __attribute__((__unused__))
  40 #else
  41 #  define __UNUSED__
  42 #endif
  43
  44 #define SC_LOGERR(fmt, args...) ((void)ALOG(LOG_ERROR, LOG_TAG, "%s: " fmt " [%s]", __func__, ##args, strerror(errno)))
  45 #define SC_LOGE(fmt, args...)     ((void)ALOG(LOG_ERROR, LOG_TAG, "%s: " fmt, __func__, ##args))
  46 #define SC_LOGI(fmt, args...)     ((void)ALOG(LOG_INFO, LOG_TAG, "%s: " fmt, __func__, ##args))
  47 #define SC_LOGI_IF(cond, fmt, args...)  do { \
  48     if (cond)                                \
  49         SC_LOGI(fmt, ##args);                \
  50     } while (0)
  51 #define SC_LOGE_IF(cond, fmt, args...)  do { \
  52     if (cond)                                \
  53         SC_LOGE(fmt, ##args);                   \
  54     } while (0)
  55 #define SC_LOG_ASSERT(cont, fmt, args...) ((void)ALOG_ASSERT(cond, "%s: " fmt, __func__, ##args))
  56
  57 #ifdef SC_DEBUG
  58 #define SC_LOGD(args...) ((void)ALOG(LOG_INFO, LOG_TAG, ##args))
  59 #define SC_LOGD_IF(cond, fmt, args...)  do { \
  60     if (cond)                                \
  61         SC_LOGD(fmt, ##args);                \
  62     } while (0)
  63 #else
  64 #define SC_LOGD(args...) do { } while (0)
  65 #define SC_LOGD_IF(cond, fmt, args...)  do { } while (0)
  66 #endif
  67
  68 #define ARRSIZE(arr) (sizeof(arr)/sizeof(arr[0]))
  69
  70
  71
  72 namespace LibScaler {
  73 template <typename T>
  74 static inline T min (T a, T b) {
  75     return (a > b) ? b : a;
  76 }
  77
  78 template <typename T>
  79 static inline void swap(T &a, T &b) {
  80     T __unused t = a;
  81     a = b;
  82     b = a;
  83 }
  84
  85 static inline bool UnderOne16thScaling(unsigned int srcw, unsigned int srch,
  86         unsigned int dstw, unsigned int dsth, unsigned int rot) {
  87     if ((rot == 90) || (rot == 270))
  88         swap(srcw, srch);
  89
  90     return ((srcw > (dstw * 16)) || (srch > (dsth * 16)));
  91 }
  92
  93 };
  94 // marker for output parameters
  95 #define __out
  96
  97 #endif //_LIBSCALER_COMMON_H_