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/**
* coopgammad -- Cooperative gamma server
* Copyright (C) 2016 Mattias Andrée (maandree@kth.se)
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef COOPGAMMA_SERVER_CHAINING
#define COOPGAMMA_SERVER_CHAINING
#include "../types/output.h"
#ifndef GCC_ONLY
# if defined(__GNUC__) && !defined(__clang__)
# define GCC_ONLY(...) __VA_ARGS__
# else
# define GCC_ONLY(...) /* nothing */
# endif
#endif
/**
* Apply a filter on top of another filter
*
* @param dest The output for the resulting ramp-trio, must be initialised
* @param application The red, green and blue ramps, as one single raw array,
* of the filter that should be applied
* @param depth -1: `float` stops
* -2: `double` stops
* Other: the number of bits of each (integral) stop
* @param base The CLUT on top of which the new filter should be applied,
* this can be the same pointer as `dest`
*/
GCC_ONLY(__attribute__((nonnull)))
void apply_filter(union gamma_ramps* restrict dest, void* restrict application,
int depth, union gamma_ramps* restrict base);
/**
* Add a filter to an output
*
* @param output The output
* @param filter The filter
* @return The index given to the filter, -1 on error
*/
GCC_ONLY(__attribute__((nonnull)))
ssize_t add_filter(struct output* restrict output, struct filter* restrict filter);
/**
* Make identity mapping ramps
*
* @param ramps Output parameter for the ramps
* @param output The output for which the ramps shall be configured
* @return Zero on success, -1 on error
*/
GCC_ONLY(__attribute__((nonnull)))
int make_plain_ramps(union gamma_ramps* restrict ramps, struct output* restrict output);
#endif
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