Line data Source code
1 :
2 : /* Copyright (c) 2009-2010, Cedric Stalder <cedric.stalder@gmail.com>
3 : * 2009-2014, 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 "compressor.h"
20 :
21 : namespace lunchbox
22 : {
23 : namespace plugin
24 : {
25 : namespace
26 : {
27 : typedef std::vector< Compressor::Functions > Compressors;
28 : static Compressors* _functions;
29 :
30 608 : const Compressor::Functions& _findFunctions( const unsigned name )
31 : {
32 8208 : BOOST_FOREACH( const Compressor::Functions& functions, *_functions )
33 8208 : if( functions.name == name )
34 608 : return functions;
35 :
36 0 : assert( 0 ); // UNREACHABLE
37 : return _functions->front();
38 : }
39 : }
40 :
41 152 : Compressor::Compressor()
42 152 : : _nResults( 0 )
43 152 : {}
44 :
45 304 : Compressor::~Compressor()
46 : {
47 718 : for ( size_t i = 0; i < _results.size(); i++ )
48 566 : delete ( _results[i] );
49 :
50 152 : _results.clear();
51 152 : }
52 :
53 1131 : Compressor::Functions::Functions( const unsigned name_,
54 : GetInfo_t getInfo_,
55 : NewCompressor_t newCompressor_,
56 : NewCompressor_t newDecompressor_,
57 : Decompress_t decompress_,
58 : IsCompatible_t isCompatible_ )
59 : : name( name_ )
60 : , getInfo( getInfo_ )
61 : , newCompressor( newCompressor_ )
62 : , newDecompressor( newDecompressor_ )
63 : , decompress( decompress_ )
64 1131 : , isCompatible( isCompatible_ )
65 1131 : {}
66 :
67 1131 : void Compressor::registerEngine( const Compressor::Functions& functions )
68 : {
69 1131 : if( !_functions ) // resolve 'static initialization order fiasco'
70 29 : _functions = new Compressors;
71 1131 : _functions->push_back( functions );
72 1131 : }
73 :
74 304 : void Compressor::compress( const void* const inData, const eq_uint64_t* inDims,
75 : const eq_uint64_t flags )
76 : {
77 304 : const bool useAlpha = !(flags & EQ_COMPRESSOR_IGNORE_ALPHA);
78 304 : const eq_uint64_t nPixels = (flags & EQ_COMPRESSOR_DATA_1D) ?
79 304 : inDims[1]: inDims[1] * inDims[3];
80 :
81 304 : compress( inData, nPixels, useAlpha );
82 304 : }
83 :
84 : }
85 : }
86 :
87 1 : size_t EqCompressorGetNumCompressors()
88 : {
89 1 : if( !lunchbox::plugin::_functions )
90 0 : lunchbox::plugin::_functions = new lunchbox::plugin::Compressors;
91 1 : return lunchbox::plugin::_functions->size();
92 : }
93 :
94 39 : void EqCompressorGetInfo( const size_t n, EqCompressorInfo* const info )
95 : {
96 39 : assert( lunchbox::plugin::_functions->size() > n );
97 39 : (*lunchbox::plugin::_functions)[ n ].getInfo( info );
98 39 : }
99 :
100 152 : void* EqCompressorNewCompressor( const unsigned name )
101 : {
102 : const lunchbox::plugin::Compressor::Functions& functions =
103 152 : lunchbox::plugin::_findFunctions( name );
104 :
105 152 : return functions.newCompressor( name );
106 : }
107 :
108 152 : void EqCompressorDeleteCompressor( void* const compressor )
109 : {
110 152 : delete reinterpret_cast< lunchbox::plugin::Compressor* >( compressor );
111 152 : }
112 :
113 152 : void* EqCompressorNewDecompressor( const unsigned name )
114 : {
115 : const lunchbox::plugin::Compressor::Functions& functions =
116 152 : lunchbox::plugin::_findFunctions( name );
117 :
118 152 : return functions.newDecompressor( name );
119 : }
120 :
121 0 : void EqCompressorDeleteDecompressor( void* const decompressor )
122 : {
123 0 : delete reinterpret_cast< lunchbox::plugin::Compressor* >( decompressor );
124 0 : }
125 :
126 304 : void EqCompressorCompress( void* const ptr, const unsigned, void* const in,
127 : const eq_uint64_t* inDims, const eq_uint64_t flags )
128 : {
129 304 : assert( ptr );
130 : reinterpret_cast< lunchbox::plugin::Compressor* >( ptr )->
131 304 : compress( in, inDims, flags );
132 304 : }
133 :
134 152 : unsigned EqCompressorGetNumResults( void* const ptr, const unsigned )
135 : {
136 152 : assert( ptr );
137 : lunchbox::plugin::Compressor* compressor =
138 152 : reinterpret_cast< lunchbox::plugin::Compressor* >( ptr );
139 152 : return compressor->getNResults();
140 : }
141 :
142 566 : void EqCompressorGetResult( void* const ptr, const unsigned, const unsigned i,
143 : void** const out, eq_uint64_t* const outSize )
144 : {
145 566 : assert( ptr );
146 : lunchbox::plugin::Compressor* compressor =
147 566 : reinterpret_cast< lunchbox::plugin::Compressor* >( ptr );
148 566 : lunchbox::plugin::Compressor::Result* result = compressor->getResults()[ i ];
149 :
150 566 : *out = result->getData();
151 566 : *outSize = result->getSize();
152 566 : assert( result->getMaxSize() >= result->getSize( ));
153 566 : assert( *outSize != 0 );
154 566 : }
155 :
156 :
157 304 : void EqCompressorDecompress( void* const decompressor, const unsigned name,
158 : const void* const* in,
159 : const eq_uint64_t* const inSizes,
160 : const unsigned nInputs,
161 : void* const out, eq_uint64_t* const outDims,
162 : const eq_uint64_t flags )
163 : {
164 : const lunchbox::plugin::Compressor::Functions& functions =
165 304 : lunchbox::plugin::_findFunctions( name );
166 : functions.decompress( in, inSizes, nInputs, out, outDims, flags,
167 304 : decompressor );
168 304 : }
169 :
170 0 : bool EqCompressorIsCompatible( const unsigned name,
171 : const GLEWContext* glewContext )
172 : {
173 : const lunchbox::plugin::Compressor::Functions& functions =
174 0 : lunchbox::plugin::_findFunctions( name );
175 :
176 0 : if ( functions.isCompatible == 0 )
177 : {
178 0 : assert( false );
179 : return false;
180 : }
181 :
182 0 : return functions.isCompatible( glewContext );
183 : }
184 :
185 0 : void EqCompressorDownload( void* const ptr, const unsigned,
186 : const GLEWContext* glewContext,
187 : const eq_uint64_t inDims[4], const unsigned source,
188 : const eq_uint64_t flags, eq_uint64_t outDims[4],
189 : void** out )
190 : {
191 0 : assert( ptr );
192 : lunchbox::plugin::Compressor* compressor =
193 0 : reinterpret_cast< lunchbox::plugin::Compressor* >( ptr );
194 0 : compressor->download( glewContext, inDims, source, flags, outDims, out );
195 0 : }
196 :
197 :
198 0 : void EqCompressorUpload( void* const ptr, const unsigned,
199 : const GLEWContext* glewContext, const void* buffer,
200 : const eq_uint64_t inDims[4], const eq_uint64_t flags,
201 : const eq_uint64_t outDims[4],
202 : const unsigned destination )
203 : {
204 0 : assert( ptr );
205 : lunchbox::plugin::Compressor* compressor =
206 0 : reinterpret_cast< lunchbox::plugin::Compressor* >( ptr );
207 : compressor->upload( glewContext, buffer, inDims, flags, outDims,
208 0 : destination );
209 0 : }
210 :
211 :
212 0 : void EqCompressorStartDownload( void* const ptr, const unsigned /*name*/,
213 : const GLEWContext* glewContext,
214 : const eq_uint64_t inDims[4],
215 : const unsigned source, const eq_uint64_t flags )
216 : {
217 0 : assert( ptr );
218 : lunchbox::plugin::Compressor* compressor =
219 0 : reinterpret_cast< lunchbox::plugin::Compressor* >( ptr );
220 0 : compressor->startDownload( glewContext, inDims, source, flags );
221 0 : }
222 :
223 0 : void EqCompressorFinishDownload( void* const ptr, const unsigned /*name*/,
224 : const GLEWContext* glewContext,
225 : const eq_uint64_t inDims[4],
226 : const unsigned source, const eq_uint64_t flags,
227 : eq_uint64_t outDims[4], void** out )
228 : {
229 0 : assert( ptr );
230 : lunchbox::plugin::Compressor* compressor =
231 0 : reinterpret_cast< lunchbox::plugin::Compressor* >( ptr );
232 : compressor->finishDownload( glewContext, inDims, source, flags, outDims,
233 0 : out );
234 87 : }
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