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Diffstat (limited to 'src/state.c')
| -rw-r--r-- | src/state.c | 172 |
1 files changed, 0 insertions, 172 deletions
diff --git a/src/state.c b/src/state.c deleted file mode 100644 index b4ec11a..0000000 --- a/src/state.c +++ /dev/null @@ -1,172 +0,0 @@ -/** - * crt-calibrator – Calibration utility for CRT monitors - * Copyright © 2014 Mattias Andrée (maandree@member.fsf.org) - * - * 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/>. - */ -#include "state.h" - -#include <stdlib.h> - - -/** - * The framebuffers on the system - */ -framebuffer_t* restrict framebuffers = NULL; - -/** - * The number of elements in `framebuffers` - */ -size_t framebuffer_count = 0; - -/** - * The graphics cards on the system - */ -drm_card_t* restrict cards = NULL; - -/** - * The number of elements in `cards` - */ -size_t card_count = 0; - -/** - * The connected CRT controllers on the system - */ -drm_crtc_t* restrict crtcs = NULL; - -/** - * The software brightness setting on each connected CRT controller, on each channel - */ -double* restrict brightnesses[3]; - -/** - * The software contrast setting on each connected CRT controller, on each channel - */ -double* restrict contrasts[3]; - -/** - * The gamma correction on each connected CRT controller, on each channel - */ -double* restrict gammas[3]; - -/** - * The number of elements in `crtcs`, `brightnesses[]`, `contrasts[]` and `gammas[]` - */ -size_t crtc_count = 0; - - - -/** - * Acquire video control - * - * @return Zero on success, -1 on error - */ -int acquire_video(void) -{ - size_t f, c, i, fn = fb_count(), cn = drm_card_count(); - drm_crtc_t* restrict old_crtcs; - - framebuffers = malloc(fn * sizeof(framebuffer_t)); - if (framebuffers == NULL) - return -1; - - for (f = 0; f < fn; f++) - { - framebuffer_t fb; - if (fb_open(f, &fb) < 0) - return -1; - framebuffers[framebuffer_count++] = fb; - } - - cards = malloc(cn * sizeof(drm_card_t)); - if (cards == NULL) - return -1; - - for (c = 0; c < cn; c++) - { - drm_card_t card; - if (drm_card_open(c, &card) < 0) - return -1; - cards[card_count++] = card; - - old_crtcs = crtcs; - crtcs = realloc(crtcs, (crtc_count + card.crtc_count) * sizeof(drm_crtc_t)); - if (crtcs == NULL) - { - crtcs = old_crtcs; - return -1; - } - - for (i = 0; i < card.crtc_count; i++) - { - drm_crtc_t crtc; - if (drm_crtc_open(i, cards + c, &crtc) < 0) - return -1; - if (crtc.connected) - crtcs[crtc_count++] = crtc; - else - drm_crtc_close(&crtc); - } - } - - for (c = 0; c < 3; c++) - { - brightnesses[c] = malloc(crtc_count * sizeof(double)); - if (brightnesses[c] == NULL) - return -1; - - contrasts[c] = malloc(crtc_count * sizeof(double)); - if (contrasts[c] == NULL) - return -1; - - gammas[c] = malloc(crtc_count * sizeof(double)); - if (gammas[c] == NULL) - return -1; - } - - return 0; -} - - -/** - * Release video control - */ -void release_video(void) -{ - size_t i; - - for (i = 0; i < crtc_count; i++) - drm_crtc_close(crtcs + i); - crtc_count = 0; - - for (i = 0; i < card_count; i++) - drm_card_close(cards + i); - card_count = 0; - - for (i = 0; i < framebuffer_count; i++) - fb_close(framebuffers + i); - framebuffer_count = 0; - - for (i = 0; i < 3; i++) - { - free(brightnesses[i]), brightnesses[i] = NULL; - free(contrasts[i]), contrasts[i] = NULL; - free(gammas[i]), gammas[i] = NULL; - } - - free(crtcs), crtcs = NULL; - free(cards), cards = NULL; - free(framebuffers), framebuffers = NULL; -} - |