LCOV - code coverage report
Current view: top level - pression/compressor - compressorRLE565.cpp (source / functions) Hit Total Coverage
Test: Pression Lines: 5 74 6.8 %
Date: 2016-12-06 05:44:58 Functions: 10 22 45.5 %

          Line data    Source code
       1             : 
       2             : /* Copyright (c) 2009-2010, Sarah Amsellem <sarah.amsellem@gmail.com>
       3             :  *               2009-2013, Stefan Eilemann <eile@equalizergraphics.com>
       4             :  *
       5             :  * This library is free software; you can redistribute it and/or modify it under
       6             :  * the terms of the GNU Lesser General Public License version 2.1 as published
       7             :  * by the Free Software Foundation.
       8             :  *
       9             :  * This library is distributed in the hope that it will be useful, but WITHOUT
      10             :  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
      11             :  * FOR A PARTICULAR PURPOSE.  See the GNU Lesser General Public License for more
      12             :  * details.
      13             :  *
      14             :  * You should have received a copy of the GNU Lesser General Public License
      15             :  * along with this library; if not, write to the Free Software Foundation, Inc.,
      16             :  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
      17             :  */
      18             : 
      19             : #include "compressorRLE565.h"
      20             : 
      21             : namespace
      22             : {
      23             : static const uint8_t _rleMarker = 0x17; // just a random number
      24             : }
      25             : 
      26             : #include "compressorRLE.ipp"
      27             : 
      28             : namespace pression
      29             : {
      30             : namespace plugin
      31             : {
      32             : namespace
      33             : {
      34           3 : REGISTER_ENGINE( CompressorRLE565, DIFF_565_RGBA, RGBA, .7, .1, 1.1, true );
      35           3 : REGISTER_ENGINE( CompressorRLE565, DIFF_565_BGRA, BGRA, .7, .1, 1.1, true );
      36           3 : REGISTER_ENGINE( CompressorRLE565, DIFF_565_RGBA_UINT_8_8_8_8_REV,  \
      37             :                  RGBA_UINT_8_8_8_8_REV, .7, .1, 1.1, true );
      38           3 : REGISTER_ENGINE( CompressorRLE565, DIFF_565_BGRA_UINT_8_8_8_8_REV,  \
      39             :                  BGRA_UINT_8_8_8_8_REV, .7, .1, 1.1, true );
      40             : 
      41             : class NoSwizzle
      42             : {
      43             : public:
      44           0 :     static inline void swizzle( const uint32_t input, uint8_t& one,
      45             :                                 uint8_t& two, uint8_t& three, uint8_t& four )
      46             :         {
      47           0 :             one   = input & 0xff;
      48           0 :             two   = ( input & 0xff00 ) >> 8;
      49           0 :             three = ( input & 0xff0000 ) >> 16;
      50           0 :             four  = ( input & 0xff000000 ) >> 24;
      51           0 :         }
      52             : 
      53           0 :     static inline void swizzle( const uint32_t input, uint8_t& one,
      54             :                                 uint8_t& two, uint8_t& three )
      55             :         {
      56           0 :             one   = input & 0xff;
      57           0 :             two   = ( input & 0xff00 ) >> 8;
      58           0 :             three = ( input & 0xff0000 ) >> 16;
      59           0 :         }
      60             : };
      61             : 
      62             : class SwizzleUInt32
      63             : {
      64             : public:
      65           0 :     static inline void swizzle( const uint32_t input, uint8_t& one,
      66             :                                 uint8_t& two, uint8_t& three, uint8_t& four )
      67             :     {
      68           0 :          NoSwizzle::swizzle(
      69           0 :            ((( input & ( LB_BIT6  | LB_BIT5  | LB_BIT4 )) >> 3 )           |
      70           0 :             (( input & ( LB_BIT14 | LB_BIT13 | LB_BIT12 )) >> 8 )          |
      71           0 :             (( input & ( LB_BIT8  | LB_BIT7 )) << 5 )                      |
      72             :             (( input & ( LB_BIT24 | LB_BIT23 | LB_BIT22 |
      73           0 :                          LB_BIT21 | LB_BIT20 )) >> 13 )                    |
      74           0 :             (( input & ( LB_BIT16 | LB_BIT15 )) >> 1 )                     |
      75           0 :             (( input &   LB_BIT32 ) >> 16 )),
      76           0 :                  one, two, three, four );
      77           0 :     }
      78             : 
      79           0 :     static inline void swizzle( const uint32_t, uint8_t&, uint8_t&, uint8_t& )
      80           0 :         { assert( 0 ); }
      81             : 
      82           0 :     static inline uint32_t deswizzle( const uint8_t one, const uint8_t two,
      83             :                                       const uint8_t three, const uint8_t four )
      84             :     {
      85           0 :         const uint32_t input = one + ( two << 8 ) + ( three << 16 ) +
      86           0 :                                ( four << 24 );
      87           0 :         return (((( input & ( LB_BIT3 | LB_BIT2 | LB_BIT1 )) << 3 )           |
      88           0 :                  (( input & ( LB_BIT6 | LB_BIT5 | LB_BIT4 )) << 8 )           |
      89           0 :                  (( input & ( LB_BIT13 | LB_BIT12 )) >> 5 )                   |
      90             :                  (( input & ( LB_BIT11 | LB_BIT10 | LB_BIT9 |
      91           0 :                               LB_BIT8 | LB_BIT7 )) << 13 )                    |
      92           0 :                  (( input & ( LB_BIT15 | LB_BIT14 )) << 1 )                   |
      93           0 :                  (( input &   LB_BIT16 ) << 16 )))
      94           0 :                           | 0x3f040404;
      95             :     }
      96             : 
      97           0 :     static inline uint32_t deswizzle( const uint8_t, const uint8_t,
      98           0 :                                       const uint8_t ) { assert( 0 ); return 0; }
      99             : };
     100             : 
     101             : class SwizzleUInt24
     102             : {
     103             : public:
     104           0 :     static inline void swizzle( const uint32_t, uint8_t&, uint8_t&, uint8_t&,
     105           0 :                                 uint8_t& ) { assert( 0 ); }
     106             : 
     107           0 :     static inline void swizzle( const uint32_t input, uint8_t& one,
     108             :                                 uint8_t& two, uint8_t& three )
     109             :     {
     110           0 :         NoSwizzle::swizzle(
     111           0 :            ((( input & ( LB_BIT6  | LB_BIT5  | LB_BIT4 )) >> 3 )           |
     112           0 :                 (( input & ( LB_BIT13 | LB_BIT12 | LB_BIT11 )) >> 7 )          |
     113           0 :                 (( input & ( LB_BIT8  | LB_BIT7 )) << 5 )                      |
     114             :                 (( input & ( LB_BIT24 | LB_BIT23 | LB_BIT22 |
     115           0 :                              LB_BIT21 | LB_BIT20 )) >> 13 )                    |
     116           0 :                  ( input & ( LB_BIT16 | LB_BIT15 | LB_BIT14 ))),
     117           0 :                    one, two, three );
     118           0 :     }
     119             : 
     120           0 :     static inline uint32_t deswizzle( const uint8_t, const uint8_t,
     121             :                                       const uint8_t, const uint8_t )
     122           0 :         { assert( 0 ); return 0; }
     123             : 
     124           0 :     static inline uint32_t deswizzle( const uint8_t one, const uint8_t two,
     125             :                                       const uint8_t three )
     126             :     {
     127           0 :         const uint32_t input = one + ( two << 8 ) + ( three << 16 );
     128           0 :         return (((( input & ( LB_BIT3 | LB_BIT2 | LB_BIT1 )) << 3 )           |
     129           0 :                  (( input & ( LB_BIT6 | LB_BIT5 | LB_BIT4 )) << 7 )           |
     130           0 :                  (( input & ( LB_BIT13 | LB_BIT12 )) >> 5 )                   |
     131             :                  (( input & ( LB_BIT11 | LB_BIT10 | LB_BIT9 |
     132           0 :                               LB_BIT8  | LB_BIT7 )) << 13 )                   |
     133           0 :                   ( input & ( LB_BIT16 | LB_BIT15 | LB_BIT14 )))
     134           0 :                           & 0xf8fcf8 )
     135           0 :                           | 0x020202;
     136             :     }
     137             : };
     138             : 
     139             : }
     140             : 
     141           0 : void CompressorRLE565::compress( const void* const inData,
     142             :                                  const eq_uint64_t nPixels,
     143             :                                  const bool useAlpha )
     144             : {
     145           0 :     if( useAlpha )
     146           0 :         _nResults = _compress< uint32_t, uint8_t, SwizzleUInt32, UseAlpha >(
     147             :                         inData, nPixels, _results );
     148             :     else
     149           0 :         _nResults = _compress< uint32_t, uint8_t, SwizzleUInt24, NoAlpha >(
     150             :                         inData, nPixels, _results );
     151           0 : }
     152             : 
     153           0 : void CompressorRLE565::decompress( const void* const* inData,
     154             :                                    const eq_uint64_t* const inSizes,
     155             :                                    const unsigned numInputs,
     156             :                                    void* const outData,
     157             :                                    eq_uint64_t* const outDims,
     158             :                                    const eq_uint64_t flags, void* const )
     159             : {
     160           0 :     const eq_uint64_t nPixels = ( flags & EQ_COMPRESSOR_DATA_1D) ?
     161           0 :                                     outDims[1] : outDims[1] * outDims[3];
     162           0 :     if( flags & EQ_COMPRESSOR_IGNORE_ALPHA )
     163             :         _decompress< uint32_t, uint8_t, SwizzleUInt24,
     164           0 :                      NoAlpha >( inData, inSizes, numInputs, outData, nPixels );
     165             :     else
     166             :         _decompress< uint32_t, uint8_t, SwizzleUInt32,
     167           0 :                      UseAlpha >( inData, inSizes, numInputs, outData, nPixels );
     168           0 : }
     169             : 
     170             : }
     171           3 : }

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