From b13efce73e506b0feb4bb7c275c273a54ae6e716 Mon Sep 17 00:00:00 2001 From: Mattias Andrée Date: Tue, 22 Oct 2019 15:04:45 +0200 Subject: Change license and style, reorganise file, make makefile portable, and fix bugs MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Signed-off-by: Mattias Andrée --- src/servers/crtc.c | 325 ----------------------------------------------------- 1 file changed, 325 deletions(-) delete mode 100644 src/servers/crtc.c (limited to 'src/servers/crtc.c') diff --git a/src/servers/crtc.c b/src/servers/crtc.c deleted file mode 100644 index ca10940..0000000 --- a/src/servers/crtc.c +++ /dev/null @@ -1,325 +0,0 @@ -/** - * 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 . - */ -#include "crtc.h" -#include "gamma.h" -#include "coopgamma.h" -#include "../state.h" -#include "../communication.h" -#include "../util.h" - -#include -#include - - - -/** - * Handle a ‘Command: enumerate-crtcs’ message - * - * @param conn The index of the connection - * @param message_id The value of the ‘Message ID’ header - * @return Zero on success (even if ignored), -1 on error, - * 1 if connection closed - */ -int handle_enumerate_crtcs(size_t conn, const char* restrict message_id) -{ - size_t i, n = 0, len; - char* restrict buf; - - for (i = 0; i < outputs_n; i++) - n += strlen(outputs[i].name) + 1; - - MAKE_MESSAGE(&buf, &n, n, - "Command: crtc-enumeration\n" - "In response to: %s\n" - "Length: %zu\n" - "\n", - message_id, n); - - for (i = 0; i < outputs_n; i++) - { - len = strlen(outputs[i].name); - memcpy(buf + n, outputs[i].name, len); - buf[n + len] = '\n'; - n += len + 1; - } - - return send_message(conn, buf, n); -} - - -/** - * Get the name of a CRTC - * - * @param info Information about the CRTC - * @param crtc libgamma's state for the CRTC - * @return The name of the CRTC, `NULL` on error - */ -char* get_crtc_name(const libgamma_crtc_information_t* restrict info, - const libgamma_crtc_state_t* restrict crtc) -{ - if ((info->edid_error == 0) && (info->edid != NULL)) - return libgamma_behex_edid(info->edid, info->edid_length); - else if ((info->connector_name_error == 0) && (info->connector_name != NULL)) - { - char* name = malloc(3 * sizeof(size_t) + strlen(info->connector_name) + 2); - if (name != NULL) - sprintf(name, "%zu.%s", crtc->partition->partition, info->connector_name); - return name; - } - else - { - char* name = malloc(2 * 3 * sizeof(size_t) + 2); - if (name != NULL) - sprintf(name, "%zu.%zu", crtc->partition->partition, crtc->crtc); - return name; - } -} - - -/** - * Initialise the site - * - * @return Zero on success, -1 on error - */ -int initialise_site(void) -{ - char* restrict sitename_dup = NULL; - int gerror, saved_errno; - - if ((sitename != NULL) && !(sitename_dup = memdup(sitename, strlen(sitename) + 1))) - goto fail; - if ((gerror = libgamma_site_initialise(&site, method, sitename_dup))) - goto fail_libgamma; - - return 0; - fail_libgamma: - sitename_dup = NULL; - libgamma_perror(argv0, gerror); - errno = 0; - fail: - saved_errno = errno; - free(sitename_dup); - errno = saved_errno; - return -1; -} - - -/** - * Get partitions and CRTC:s - * - * @return Zero on success, -1 on error - */ -int initialise_crtcs(void) -{ - size_t i, j, n, n0; - int gerror; - - /* Get partitions */ - outputs_n = 0; - if (site.partitions_available) - if (!(partitions = calloc(site.partitions_available, sizeof(*partitions)))) - goto fail; - for (i = 0; i < site.partitions_available; i++) - { - if ((gerror = libgamma_partition_initialise(partitions + i, &site, i))) - goto fail_libgamma; - outputs_n += partitions[i].crtcs_available; - } - - /* Get CRTC:s */ - if (outputs_n) - if (!(crtcs = calloc(outputs_n, sizeof(*crtcs)))) - goto fail; - for (i = 0, j = n = 0; i < site.partitions_available; i++) - for (n0 = n, n += partitions[i].crtcs_available; j < n; j++) - if ((gerror = libgamma_crtc_initialise(crtcs + j, partitions + i, j - n0))) - goto fail_libgamma; - - return 0; - - fail_libgamma: - libgamma_perror(argv0, gerror); - errno = 0; - fail: - return -1; -} - - -/** - * Merge the new state with an old state - * - * @param old_outputs The old `outputs` - * @param old_outputs_n The old `outputs_n` - * @return Zero on success, -1 on error - */ -int merge_state(struct output* restrict old_outputs, size_t old_outputs_n) -{ - struct output* restrict new_outputs = NULL; - size_t new_outputs_n; - size_t i, j; - - /* How many outputs does the system now have? */ - i = j = new_outputs_n = 0; - while ((i < old_outputs_n) && (j < outputs_n)) - { - int cmp = strcmp(old_outputs[i].name, outputs[j].name); - if (cmp <= 0) - new_outputs_n++; - i += cmp >= 0; - j += cmp <= 0; - } - new_outputs_n += outputs_n - j; - - /* Allocate output state array */ - if (new_outputs_n > 0) - { - new_outputs = calloc(new_outputs_n, sizeof(*new_outputs)); - if (new_outputs == NULL) - return -1; - } - - /* Merge output states */ - i = j = new_outputs_n = 0; - while ((i < old_outputs_n) && (j < outputs_n)) - { - int is_same = 0, cmp = strcmp(old_outputs[i].name, outputs[j].name); - if (cmp == 0) - is_same = (old_outputs[i].depth == outputs[j].depth && - old_outputs[i].red_size == outputs[j].red_size && - old_outputs[i].green_size == outputs[j].green_size && - old_outputs[i].blue_size == outputs[j].blue_size); - if (is_same) - { - new_outputs[new_outputs_n] = old_outputs[i]; - new_outputs[new_outputs_n].crtc = outputs[j].crtc; - memset(old_outputs + i, 0, sizeof(*old_outputs)); - outputs[j].crtc = NULL; - output_destroy(outputs + j); - new_outputs_n++; - } - else if (cmp <= 0) - new_outputs[new_outputs_n++] = outputs[j]; - i += cmp >= 0; - j += cmp <= 0; - } - while (j < outputs_n) - new_outputs[new_outputs_n++] = outputs[j++]; - - /* Commit merge */ - free(outputs); - outputs = new_outputs; - outputs_n = new_outputs_n; - - return 0; -} - - - -/** - * Disconnect from the site - * - * @return Zero on success, -1 on error - */ -int disconnect(void) -{ - size_t i; - - if (!connected) - return 0; - connected = 0; - - for (i = 0; i < outputs_n; i++) - { - outputs[i].crtc = NULL; - libgamma_crtc_destroy(crtcs + i); - } - free(crtcs), crtcs = NULL; - for (i = 0; i < site.partitions_available; i++) - libgamma_partition_destroy(partitions + i); - free(partitions), partitions = NULL; - libgamma_site_destroy(&site); - memset(&site, 0, sizeof(site)); - - return 0; -} - - -/** - * Reconnect to the site - * - * @return Zero on success, -1 on error - */ -int reconnect(void) -{ - struct output* restrict old_outputs; - size_t i, old_outputs_n; - int saved_errno; - - if (connected) - return 0; - connected = 1; - - /* Remember old state */ - old_outputs = outputs, outputs = NULL; - old_outputs_n = outputs_n, outputs_n = 0; - - /* Get site */ - if (initialise_site() < 0) - goto fail; - - /* Get partitions and CRTC:s */ - if (initialise_crtcs() < 0) - goto fail; - - /* Get CRTC information */ - if (outputs_n && !(outputs = calloc(outputs_n, sizeof(*outputs)))) - goto fail; - if (initialise_gamma_info() < 0) - goto fail; - - /* Sort outputs */ - qsort(outputs, outputs_n, sizeof(*outputs), output_cmp_by_name); - - /* Load current gamma ramps */ - store_gamma(); - - /* Preserve current gamma ramps at priority=0 if -p */ - if (preserve && (preserve_gamma() < 0)) - goto fail; - - /* Merge state */ - if (merge_state(old_outputs, old_outputs_n) < 0) - goto fail; - for (i = 0; i < old_outputs_n; i++) - output_destroy(old_outputs + i); - free(old_outputs), old_outputs = NULL, old_outputs_n = 0; - - /* Reapply gamma ramps */ - reapply_gamma(); - - return 0; - - fail: - saved_errno = errno; - for (i = 0; i < old_outputs_n; i++) - output_destroy(old_outputs + i); - free(old_outputs); - errno = saved_errno; - return -1; -} - -- cgit v1.2.3-70-g09d2