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/* See LICENSE file for copyright and license details. */
#ifndef LIBGAMMA_GAMMA_HELPER_H
#define LIBGAMMA_GAMMA_HELPER_H
#include "libgamma-method.h"
/**
* Gamma ramp structure union for different depths
*/
typedef union libgamma_gamma_ramps_any {
/**
* 8-bit gamma ramps
*/
libgamma_gamma_ramps8_t bits8;
/**
* 16-bit gamma ramps
*/
libgamma_gamma_ramps16_t bits16;
/**
* 32-bit gamma ramps
*/
libgamma_gamma_ramps32_t bits32;
/**
* 64-bit gamma ramps
*/
libgamma_gamma_ramps64_t bits64;
/**
* Single precision float gamma ramps
*/
libgamma_gamma_rampsf_t float_single;
/**
* Double precision float gamma ramps
*/
libgamma_gamma_rampsd_t float_double;
} libgamma_gamma_ramps_any_t;
/**
* A function for reading the gamma ramps from a CRTC
*
* @param this The CRTC state
* @param ramps The store for the gamma ramps
* @return Zero on success, otherwise (negative) the value of an
* error identifier provided by this library
*/
typedef int libgamma_get_ramps_any_fun(libgamma_crtc_state_t *restrict, libgamma_gamma_ramps_any_t *restrict);
/**
* A function for writing the gamma ramps to a CRTC
*
* @param this The CRTC state
* @param ramps The gamma ramps
* @return Zero on success, otherwise (negative) the value of an
* error identifier provided by this library
*/
typedef int libgamma_set_ramps_any_fun(libgamma_crtc_state_t *restrict, libgamma_gamma_ramps_any_t);
/**
* Get the current gamma ramps for a CRTC, re-encoding version
*
* @param this The CRTC state
* @param ramps The gamma ramps to fill with the current values
* @param depth_user The depth of the gamma ramps that are provided by the user,
* `-1` for `float`, `-2` for `double`
* @param depth_system The depth of the gamma ramps as required by the adjustment method,
* `-1` for `float`, `-2` for `double`
* @param fun Function that is to be used read the ramps, its parameters have
* the same function as those of this function with the same names,
* and the return value too is identical
* @return Zero on success, otherwise (negative) the value of an
* error identifier provided by this library
*/
#define libgamma_translated_ramp_get(this, ramps, depth_user, depth_system, fun)\
libgamma_translated_ramp_get_((this), (ramps), (depth_user), (depth_system), (libgamma_get_ramps_any_fun *)(fun))
/**
* Set the gamma ramps for a CRTC, re-encoding version
*
* @param this The CRTC state
* @param ramps The gamma ramps to apply
* @param depth_user The depth of the gamma ramps that are provided by the user,
* `-1` for `float`, `-2` for `double`
* @param depth_system The depth of the gamma ramps as required by the adjustment method,
* `-1` for `float`, `-2` for `double`
* @param fun Function that is to be used write the ramps, its parameters have
* the same function as those of this function with the same names,
* and the return value too is identical
* @return Zero on success, otherwise (negative) the value of an
* error identifier provided by this library
*/
#define libgamma_translated_ramp_set(this, ramps, depth_user, depth_system, fun)\
libgamma_translated_ramp_set_((this), (ramps), (depth_user), (depth_system), (libgamma_set_ramps_any_fun *)fun)
/**
* Get the current gamma ramps for a CRTC, re-encoding version
*
* @param this The CRTC state
* @param ramps The gamma ramps to fill with the current values
* @param depth_user The depth of the gamma ramps that are provided by the user,
* `-1` for `float`, `-2` for `double`
* @param depth_system The depth of the gamma ramps as required by the adjustment method,
* `-1` for `float`, `-2` for `double`
* @param fun Function that is to be used read the ramps, its parameters have
* the same function as those of this function with the same names,
* and the return value too is identical
* @return Zero on success, otherwise (negative) the value of an
* error identifier provided by this library
*/
int libgamma_translated_ramp_get_(libgamma_crtc_state_t *restrict, libgamma_gamma_ramps_any_t *restrict,
signed, signed, libgamma_get_ramps_any_fun *);
/**
* Set the gamma ramps for a CRTC, re-encoding version
*
* @param this The CRTC state
* @param ramps The gamma ramps to apply
* @param depth_user The depth of the gamma ramps that are provided by the user,
* `-1` for `float`, `-2` for `double`
* @param depth_system The depth of the gamma ramps as required by the adjustment method,
* `-1` for `float`, `-2` for `double`
* @param fun Function that is to be used write the ramps, its parameters have
* the same function as those of this function with the same names,
* and the return value too is identical
* @return Zero on success, otherwise (negative) the value of an
* error identifier provided by this library
*/
int libgamma_translated_ramp_set_(libgamma_crtc_state_t *restrict, libgamma_gamma_ramps_any_t,
signed, signed, libgamma_set_ramps_any_fun *);
#endif
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