From d2c052cb9374b6420aa65e50d32e6f864f45ec53 Mon Sep 17 00:00:00 2001 From: Mattias Andrée Date: Sun, 17 Jul 2016 19:11:36 +0200 Subject: More refactoring MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Signed-off-by: Mattias Andrée --- src/servers/crtc.c | 129 +++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 129 insertions(+) create mode 100644 src/servers/crtc.c (limited to 'src/servers/crtc.c') diff --git a/src/servers/crtc.c b/src/servers/crtc.c new file mode 100644 index 0000000..2e884a8 --- /dev/null +++ b/src/servers/crtc.c @@ -0,0 +1,129 @@ +/** + * 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 "../state.h" +#include "../communication.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, 0, + "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; + } +} + + +/** + * 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 */ + 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; +} + -- cgit v1.2.3-70-g09d2