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      1 /*
      2  * Copyright (c) 2011-2016, The Linux Foundation. All rights reserved.
      3 
      4  * Redistribution and use in source and binary forms, with or without
      5  * modification, are permitted provided that the following conditions are
      6  * met:
      7  *   * Redistributions of source code must retain the above copyright
      8  *     notice, this list of conditions and the following disclaimer.
      9  *   * Redistributions in binary form must reproduce the above
     10  *     copyright notice, this list of conditions and the following
     11  *     disclaimer in the documentation and/or other materials provided
     12  *     with the distribution.
     13  *   * Neither the name of The Linux Foundation nor the names of its
     14  *     contributors may be used to endorse or promote products derived
     15  *     from this software without specific prior written permission.
     16  *
     17  * THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESS OR IMPLIED
     18  * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
     19  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT
     20  * ARE DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS
     21  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     22  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     23  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
     24  * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
     25  * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
     26  * OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN
     27  * IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     28  */
     29 
     30 #ifndef __GR_UTILS_H__
     31 #define __GR_UTILS_H__
     32 
     33 #include "gralloc_priv.h"
     34 
     35 #define SZ_2M 0x200000
     36 #define SZ_1M 0x100000
     37 #define SZ_4K 0x1000
     38 
     39 #define SIZE_4K 4096
     40 #define SIZE_8K 4096
     41 
     42 #define INT(exp) static_cast<int>(exp)
     43 #define UINT(exp) static_cast<unsigned int>(exp)
     44 
     45 namespace gralloc1 {
     46 
     47 template <class Type1, class Type2>
     48 inline Type1 ALIGN(Type1 x, Type2 align) {
     49   return (Type1)((x + (Type1)align - 1) & ~((Type1)align - 1));
     50 }
     51 
     52 bool IsCompressedRGBFormat(int format);
     53 bool IsUncompressedRGBFormat(int format);
     54 uint32_t GetBppForUncompressedRGB(int format);
     55 bool CpuCanAccess(gralloc1_producer_usage_t prod_usage, gralloc1_consumer_usage_t cons_usage);
     56 bool CpuCanRead(gralloc1_producer_usage_t prod_usage, gralloc1_consumer_usage_t cons_usage);
     57 bool CpuCanWrite(gralloc1_producer_usage_t prod_usage);
     58 
     59 }  // namespace gralloc1
     60 
     61 #endif  // __GR_UTILS_H__
     62