From 0c0d0ca0da8060484ab5f41a6ee73087755a69e3 Mon Sep 17 00:00:00 2001
From: Mattias Andrée <maandree@kth.se>
Date: Sat, 16 Jul 2016 19:28:39 +0200
Subject: Restructure
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Signed-off-by: Mattias Andrée <maandree@kth.se>
---
src/gamma-server/server.c | 144 ++++++++++++++++++++++++++++++++++++++++++++++
src/gamma-server/server.h | 75 ++++++++++++++++++++++++
2 files changed, 219 insertions(+)
create mode 100644 src/gamma-server/server.c
create mode 100644 src/gamma-server/server.h
(limited to 'src/gamma-server')
diff --git a/src/gamma-server/server.c b/src/gamma-server/server.c
new file mode 100644
index 0000000..b6ec852
--- /dev/null
+++ b/src/gamma-server/server.c
@@ -0,0 +1,144 @@
+/**
+ * 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 <http://www.gnu.org/licenses/>.
+ */
+#include "server.h"
+#include "../state.h"
+#include "../communication.h"
+
+#include <string.h>
+
+
+
+#if defined(__clang__)
+# pragma GCC diagnostic ignored "-Wswitch-enum"
+#endif
+
+
+
+/**
+ * Handle a ‘Command: set-gamma’ message
+ *
+ * @param conn The index of the connection
+ * @param message_id The value of the ‘Message ID’ header
+ * @param crtc The value of the ‘CRTC’ header
+ * @return Zero on success (even if ignored), -1 on error,
+ * 1 if connection closed
+ */
+int handle_get_gamma_info(size_t conn, const char* restrict message_id, const char* restrict crtc)
+{
+ struct output* restrict output;
+ char* restrict buf;
+ char depth[3];
+ const char* supported;
+ size_t n;
+
+ if (crtc == NULL) return send_error("protocol error: 'CRTC' header omitted");
+
+ output = output_find_by_name(crtc, outputs, outputs_n);
+ if (output == NULL)
+ return send_error("selected CRTC does not exist");
+
+ switch (output->depth)
+ {
+ case -2: strcpy(depth, "d"); break;
+ case -1: strcpy(depth, "f"); break;
+ default:
+ sprintf(depth, "%i", output->depth);
+ break;
+ }
+
+ switch (output->supported)
+ {
+ case LIBGAMMA_YES: supported = "yes"; break;
+ case LIBGAMMA_NO: supported = "no"; break;
+ default: supported = "maybe"; break;
+ }
+
+ MAKE_MESSAGE(&buf, &n, 0,
+ "In response to: %s\n"
+ "Cooperative: yes\n" /* In mds: say ‘no’, mds-coopgamma changes to ‘yes’.” */
+ "Depth: %s\n"
+ "Red size: %zu\n"
+ "Green size: %zu\n"
+ "Blue size: %zu\n"
+ "Gamma support: %s\n"
+ "\n",
+ message_id, depth, output->red_size, output->green_size,
+ output->blue_size, supported);
+
+ return send_message(conn, buf, n);
+}
+
+
+/**
+ * Set the gamma ramps on an output
+ *
+ * @param output The output
+ * @param ramps The gamma ramps
+ */
+void set_gamma(const struct output* restrict output, const union gamma_ramps* restrict ramps)
+{
+ int r = 0;
+
+ if (connected)
+ {
+ switch (output->depth)
+ {
+ case 8: r = libgamma_crtc_set_gamma_ramps8(output->crtc, ramps->u8); break;
+ case 16: r = libgamma_crtc_set_gamma_ramps16(output->crtc, ramps->u16); break;
+ case 32: r = libgamma_crtc_set_gamma_ramps32(output->crtc, ramps->u32); break;
+ case 64: r = libgamma_crtc_set_gamma_ramps64(output->crtc, ramps->u64); break;
+ case -1: r = libgamma_crtc_set_gamma_rampsf(output->crtc, ramps->f); break;
+ case -2: r = libgamma_crtc_set_gamma_rampsd(output->crtc, ramps->d); break;
+ default:
+ abort();
+ }
+ if (r)
+ libgamma_perror(argv0, r); /* Not fatal */
+ }
+}
+
+
+/**
+ * Disconnect from the site
+ *
+ * @return Zero on success, -1 on error
+ */
+int disconnect(void)
+{
+ if (!connected)
+ return 0;
+
+ connected = 0;
+ return 0; /* TODO disconnect() */
+}
+
+
+/**
+ * Reconnect to the site
+ *
+ * @return Zero on success, -1 on error
+ */
+int reconnect(void)
+{
+ if (connected)
+ return 0;
+
+ connected = 1;
+ return 0; /* TODO reconnect() */
+}
+
diff --git a/src/gamma-server/server.h b/src/gamma-server/server.h
new file mode 100644
index 0000000..b84a836
--- /dev/null
+++ b/src/gamma-server/server.h
@@ -0,0 +1,75 @@
+/**
+ * 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 <http://www.gnu.org/licenses/>.
+ */
+#ifndef GAMMA_SERVER_SERVER_H
+#define GAMMA_SERVER_SERVER_H
+
+
+#include "../types/output.h"
+
+#include <stddef.h>
+
+
+
+#ifndef GCC_ONLY
+# if defined(__GNUC__) && !defined(__clang__)
+# define GCC_ONLY(...) __VA_ARGS__
+# else
+# define GCC_ONLY(...) /* nothing */
+# endif
+#endif
+
+
+
+/**
+ * Handle a ‘Command: set-gamma’ message
+ *
+ * @param conn The index of the connection
+ * @param message_id The value of the ‘Message ID’ header
+ * @param crtc The value of the ‘CRTC’ header
+ * @return Zero on success (even if ignored), -1 on error,
+ * 1 if connection closed
+ */
+GCC_ONLY(__attribute__((nonnull(2))))
+int handle_get_gamma_info(size_t conn, const char* restrict message_id, const char* restrict crtc);
+
+/**
+ * Set the gamma ramps on an output
+ *
+ * @param output The output
+ * @param ramps The gamma ramps
+ */
+GCC_ONLY(__attribute__((nonnull)))
+void set_gamma(const struct output* restrict output, const union gamma_ramps* restrict ramps);
+
+/**
+ * Disconnect from the site
+ *
+ * @return Zero on success, -1 on error
+ */
+int disconnect(void);
+
+/**
+ * Reconnect to the site
+ *
+ * @return Zero on success, -1 on error
+ */
+int reconnect(void);
+
+
+#endif
+
--
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