/usr/include/babl-0.1/babl/babl-fish.h is in libbabl-dev 0.1.10-1ubuntu2.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 | /* babl - dynamically extendable universal pixel conversion library.
* Copyright (C) 2005-2008, Øyvind Kolås and others.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 3 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General
* Public License along with this library; if not, see
* <http://www.gnu.org/licenses/>.
*/
#ifndef _BABL_FISH_H
#define _BABL_FISH_H
/****************************************************************/
/* BablFish */
BABL_CLASS_DECLARE (fish);
/* BablFish, common base class for various fishes.
*/
typedef struct
{
BablInstance instance;
const Babl *source;
const Babl *destination;
double error; /* the amount of noise introduced by the fish */
/* instrumentation */
int processings; /* number of times the fish has been used */
long pixels; /* number of pixels translates */
long usecs; /* usecs spent within this fish */
} BablFish;
/* BablFishSimple is the simplest type of fish, wrapping a single
* conversion function, (note this might not be the optimal chosen
* conversion even if it exists)
*
* TODO: exterminate
*/
typedef struct
{
BablFish fish;
BablConversion *conversion;
} BablFishSimple;
/* BablFishPath is a combination of registered conversions, both
* from the reference types / model conversions, and optimized format to
* format conversion.
*
* This is the most advanced scheduled species of fish, some future
* version of babl might even be evovling path fishes in a background
* thread, based on the fish instrumentation. For this to work in a future
* version transmogrification between the fish classes would be used.
*/
typedef struct
{
BablFish fish;
double cost; /* number of ticks *10 + chain_length */
double loss; /* error introduced */
BablList *conversion_list;
} BablFishPath;
/* BablFishReference
*
* A BablFishReference is not intended to be fast, thus the algorithm
* encoded can use a multi stage approach, based on the knowledge babl
* has encoded in the pixel formats.
*
* One of the contributions that would be welcome are new fish factories.
*
* TODO:
* * make optimal use of a single allocation containing enough space
* for the maximum amount of memory needed in two adjecant buffers
* at any time.
*/
typedef struct
{
BablFish fish;
} BablFishReference;
#endif
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