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      1 /*
      2 * Copyright (c) 2014 - 2016, The Linux Foundation. All rights reserved.
      3 *
      4 * Redistribution and use in source and binary forms, with or without modification, are permitted
      5 * provided that the following conditions are met:
      6 *    * Redistributions of source code must retain the above copyright notice, this list of
      7 *      conditions and the following disclaimer.
      8 *    * Redistributions in binary form must reproduce the above copyright notice, this list of
      9 *      conditions and the following disclaimer in the documentation and/or other materials provided
     10 *      with the distribution.
     11 *    * Neither the name of The Linux Foundation nor the names of its contributors may be used to
     12 *      endorse or promote products derived from this software without specific prior written
     13 *      permission.
     14 *
     15 * THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
     16 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
     17 * NON-INFRINGEMENT ARE DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE
     18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
     19 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
     20 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
     21 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
     22 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     23 */
     24 
     25 #ifndef __CONSTANTS_H__
     26 #define __CONSTANTS_H__
     27 
     28 #include <stdlib.h>
     29 #include <inttypes.h>
     30 
     31 #ifndef PRIu64
     32 #define PRIu64 "llu"
     33 #endif
     34 
     35 #define INT(exp) static_cast<int>(exp)
     36 #define FLOAT(exp) static_cast<float>(exp)
     37 #define UINT8(exp) static_cast<uint8_t>(exp)
     38 #define UINT16(exp) static_cast<uint16_t>(exp)
     39 #define UINT32(exp) static_cast<uint32_t>(exp)
     40 #define INT32(exp) static_cast<int32_t>(exp)
     41 #define UINT64(exp) static_cast<uint64_t>(exp)
     42 
     43 #define ROUND_UP(number, step) ((((number) + ((step) - 1)) / (step)) * (step))
     44 
     45 #define BITMAP(bit) (1 << (bit))
     46 
     47 #define ROUND_UP_ALIGN_DOWN(value, a) FLOAT(FloorToMultipleOf(UINT32(value + 0.5f), UINT32(a)))
     48 #define ROUND_UP_ALIGN_UP(value, a) FLOAT(CeilToMultipleOf(UINT32(value + 0.5f), UINT32(a)))
     49 
     50 #define IDLE_TIMEOUT_DEFAULT_MS 70
     51 
     52 #define IS_RGB_FORMAT(format) (((format) < kFormatYCbCr420Planar) ? true: false)
     53 
     54 #define BITS_PER_BYTE 8
     55 #define BITS_TO_BYTES(x) (((x) + (BITS_PER_BYTE - 1)) / (BITS_PER_BYTE))
     56 
     57 // factor value should be in powers of 2(eg: 1, 2, 4, 8)
     58 template <class T1, class T2>
     59 inline T1 FloorToMultipleOf(const T1 &value, const T2 &factor) {
     60   return (T1)(value & (~(factor - 1)));
     61 }
     62 
     63 template <class T1, class T2>
     64 inline T1 CeilToMultipleOf(const T1 &value, const T2 &factor) {
     65   return (T1)((value + (factor - 1)) & (~(factor - 1)));
     66 }
     67 
     68 namespace sdm {
     69 
     70   const int kThreadPriorityUrgent = -9;
     71   const int kMaxRotatePerLayer = 2;
     72   const uint32_t kMaxBlitTargetLayers = 2;
     73   const int kPageSize = 4096;
     74 
     75   typedef void * Handle;
     76 
     77 }  // namespace sdm
     78 
     79 #endif  // __CONSTANTS_H__
     80 
     81