From bdeb7f77f16b1e482904866ff21e43f8bfc01bb0 Mon Sep 17 00:00:00 2001 From: Mattias Andrée Date: Sat, 31 May 2014 07:32:09 +0200 Subject: move files around MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Signed-off-by: Mattias Andrée --- src/gamma-helper.c | 258 ----------------------------------------------------- 1 file changed, 258 deletions(-) delete mode 100644 src/gamma-helper.c (limited to 'src/gamma-helper.c') diff --git a/src/gamma-helper.c b/src/gamma-helper.c deleted file mode 100644 index dd4e027..0000000 --- a/src/gamma-helper.c +++ /dev/null @@ -1,258 +0,0 @@ -/** - * libgamma — Display server abstraction layer for gamma ramp adjustments - * Copyright © 2014 Mattias Andrée (maandree@member.fsf.org) - * - * This library 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 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 General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this library. If not, see . - */ -#include "gamma-helper.h" - -#include "libgamma-method.h" -#include "libgamma-error.h" - -#include -#include -#include - - -#define ANY bits64 - - -/** - * Convert any set of gamma ramps into a 64-bit integer array with all channels. - * - * @param depth The depth of the gamma ramp, `-1` for `float`, `-2` for `double`. - * @param n The grand size of gamma ramps (sum of all channels' sizes.) - * @param out Output array. - * @param in Input gamma ramps. - */ -static void translate_to_64(signed depth, size_t n, uint64_t* restrict out, libgamma_gamma_ramps_any_t in) -{ - size_t i; - switch (depth) - { - case 16: - for (i = 0; i < n; i++) - out[i] = (uint64_t)(in.bits16.red[i]) * 0x0001000100010001ULL; - break; - - case 32: - for (i = 0; i < n; i++) - out[i] = (uint64_t)(in.bits32.red[i]) * 0x0000000100000001ULL; - break; - - case 64: - for (i = 0; i < n; i++) - out[i] = in.bits64.red[i]; - break; - - case -1: - for (i = 0; i < n; i++) - out[i] = (uint64_t)(in.float_single.red[i] * (float)UINT64_MAX); - break; - - case -2: - for (i = 0; i < n; i++) - out[i] = (uint64_t)(in.float_double.red[i] * (double)UINT64_MAX); - break; - - default: /* This is not possible. */ - abort(); - break; - } -} - - -/** - * Undo the actions of `translate_to_64`. - * - * @param depth The depth of the gamma ramp, `-1` for `float`, `-2` for `double`. - * @param n The grand size of gamma ramps (sum of all channels' sizes.) - * @param out Output gamma ramps. - * @param in Input array, may be modified. - */ -static void translate_from_64(signed depth, size_t n, libgamma_gamma_ramps_any_t out, uint64_t* restrict in) -{ - size_t i; - - switch (depth) - { - case 16: - for (i = 0; i < n; i++) - out.bits16.red[i] = (uint16_t)(in[i] / 0x0001000100010001ULL); - break; - - case 32: - for (i = 0; i < n; i++) - out.bits32.red[i] = (uint32_t)(in[i] / 0x0000000100000001ULL); - break; - - case 64: - for (i = 0; i < n; i++) - out.bits64.red[i] = in[i]; - break; - - case -1: - for (i = 0; i < n; i++) - out.float_single.red[i] = (float)(in[i]) / (float)UINT64_MAX; - break; - - case -2: - for (i = 0; i < n; i++) - out.float_double.red[i] = (double)(in[i]) / (double)UINT64_MAX; - break; - - default: /* This is not possible. */ - abort(); - break; - } -} - - -/** - * Allocate and initalise a gamma ramp with any depth. - * - * @param ramps_sys Output gamma ramps. - * @param ramps The gamma ramps whose sizes should be duplicated. - * @param depth The depth of the gamma ramps to allocate, - * `-1` for `float`, `-2` for `double`. - * @param elements Output reference for the grand size of the gamma ramps. - * @return Zero on success, otherwise (negative) the value of an - * error identifier provided by this library. - */ -static int allocated_any_ramp(libgamma_gamma_ramps_any_t* restrict ramps_sys, - libgamma_gamma_ramps_any_t ramps, signed depth, size_t* restrict elements) -{ - size_t n = 0; - size_t d; - - switch (depth) - { - case 16: d = sizeof(uint16_t); break; - case 32: d = sizeof(uint32_t); break; - case 64: d = sizeof(uint64_t); break; - case -1: d = sizeof(float); break; - case -2: d = sizeof(double); break; - default: - return errno = EINVAL, LIBGAMMA_ERRNO_SET; - } - - n += ramps_sys->ANY. red_size = ramps.ANY. red_size; - n += ramps_sys->ANY.green_size = ramps.ANY.green_size; - n += ramps_sys->ANY. blue_size = ramps.ANY. blue_size; - - ramps_sys->ANY.red = malloc(n * d); - ramps_sys->ANY.green = (void*)(((char*)(ramps_sys->ANY. red)) + ramps.ANY. red_size * d / sizeof(char)); - ramps_sys->ANY.blue = (void*)(((char*)(ramps_sys->ANY.green)) + ramps.ANY.green_size * d / sizeof(char)); - - *elements = n; - return ramps_sys->ANY.red ? 0 : LIBGAMMA_ERRNO_SET; -} - - -/** - * Get current the 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 this, - libgamma_gamma_ramps_any_t* restrict ramps, - signed depth_user, signed depth_system, - libgamma_get_ramps_any_fun* fun) -{ - size_t n; - int r; - libgamma_gamma_ramps_any_t ramps_sys; - uint64_t* restrict ramps_full; - - if ((r = allocated_any_ramp(&ramps_sys, *ramps, depth_system, &n))) - return r; - - if ((r = fun(this, &ramps_sys))) - { - free(ramps_sys.ANY.red); - return r; - } - - if ((ramps_full = malloc(n * sizeof(uint64_t))) == NULL) - { - free(ramps_sys.ANY.red); - return LIBGAMMA_ERRNO_SET; - } - - translate_to_64(depth_system, n, ramps_full, ramps_sys); - free(ramps_sys.ANY.red); - - translate_from_64(depth_user, n, *ramps, ramps_full); - free(ramps_full); - return 0; -} - - -/** - * 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 this, - libgamma_gamma_ramps_any_t ramps, - signed depth_user, signed depth_system, - libgamma_set_ramps_any_fun* fun) -{ - size_t n; - int r; - libgamma_gamma_ramps_any_t ramps_sys; - uint64_t* restrict ramps_full; - - if ((r = allocated_any_ramp(&ramps_sys, ramps, depth_system, &n))) - return r; - - if ((ramps_full = malloc(n * sizeof(uint64_t))) == NULL) - { - free(ramps_sys.ANY.red); - return LIBGAMMA_ERRNO_SET; - } - - translate_to_64(depth_user, n, ramps_full, ramps); - translate_from_64(depth_system, n, ramps_sys, ramps_full); - free(ramps_full); - - r = fun(this, ramps_sys); - - free(ramps_sys.ANY.red); - return r; -} - - -#undef ANY - -- cgit v1.2.3-70-g09d2