Devices/Monitors

Signed-off-by: Burt P <pburt0@gmail.com>

1 files changed, 282 insertions, 0 deletions

diff --git a/modules/devices/monitors.c b/modules/devices/monitors.c
new file mode 100644
index 00000000..4e8ba915
--- /dev/null
+++ b/modules/devices/monitors.c
@@ -0,0 +1,282 @@
+/*
+ *    HardInfo - Displays System Information
+ *    Copyright (C) 2003-2019 Leandro A. F. Pereira <leandro@hardinfo.org>
+ *    Copyright (C) 2019 Burt P. <pburt0@gmail.com>
+ *
+ *    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, version 2.
+ *
+ *    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, write to the Free Software
+ *    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301 USA
+ */
+
+#include "devices.h"
+#include "util_sysobj.h"
+#include "util_edid.h"
+#include "util_ids.h"
+
+static const char monitor_icon[] = "monitor.png";
+
+#define UNKIFNULL2(f) ((f) ? f : _("(Unknown)"))
+#define UNKIFEMPTY2(f) ((*f) ? f : _("(Unknown)"))
+
+gboolean no_monitors = FALSE;
+
+gchar *edid_ids_file = NULL;
+
+void find_edid_ids_file() {
+    if (edid_ids_file) return;
+    char *file_search_order[] = {
+        g_build_filename(g_get_user_config_dir(), "hardinfo", "edid.ids", NULL),
+        g_build_filename(params.path_data, "edid.ids", NULL),
+        NULL
+    };
+    int n;
+    for(n = 0; file_search_order[n]; n++) {
+        if (!edid_ids_file && !access(file_search_order[n], R_OK))
+            edid_ids_file = file_search_order[n];
+        else
+            g_free(file_search_order[n]);
+    }
+    auto_free(edid_ids_file);
+}
+
+typedef struct {
+    gchar *drm_connection;
+    uint8_t *edid_bin;
+    gsize edid_len;
+    struct edid id;
+    gchar *_vstr; /* use monitor_vendor_str() */
+} monitor;
+#define monitor_new() g_new0(monitor, 1)
+
+monitor *monitor_new_from_sysfs(const gchar *sysfs_edid_file) {
+    monitor *m = monitor_new();
+    g_file_get_contents(sysfs_edid_file, (gchar**)&(m->edid_bin), &m->edid_len, NULL);
+    if (m->edid_len) {
+        edid_fill(&m->id, (void*)(m->edid_bin), m->edid_len);
+    }
+
+    gchar *pd = g_path_get_dirname(sysfs_edid_file);
+    m->drm_connection = g_path_get_basename(pd);
+    g_free(pd);
+
+    return m;
+}
+
+void monitor_free(monitor *m) {
+    if (m) {
+        g_free(m->_vstr);
+        g_free(m->drm_connection);
+        g_free(m->edid_bin);
+        g_free(m);
+    }
+}
+
+const gchar *monitor_vendor_str(monitor *m) {
+    if (m->_vstr)
+        return m->_vstr;
+
+    ids_query_result result = {};
+
+    if (!edid_ids_file)
+        find_edid_ids_file();
+
+    scan_ids_file(edid_ids_file, m->id.ven, &result, -1);
+    if (result.results[0]) {
+        m->_vstr = g_strdup(result.results[0]);
+        return m->_vstr;
+    }
+    return g_strdup(m->id.ven);
+}
+
+gchar *monitor_name(monitor *m, gboolean include_vendor) {
+    if (!m) return NULL;
+    gchar *desc = NULL;
+
+    if (include_vendor) {
+        if (*m->id.ven)
+            desc = appfsp(desc, "%s", vendor_get_shortest_name(monitor_vendor_str(m)));
+        else
+            desc = appfsp(desc, "%s", "Unknown");
+    }
+
+    if (m->id.diag_in) {
+        gchar *din = util_strchomp_float(g_strdup_printf("%0.1f", m->id.diag_in));
+        desc = appfsp(desc, "%s\"", din);
+        g_free(din);
+    }
+
+    if (m->id.name)
+        desc = appfsp(desc, "%s", m->id.name);
+    else
+        desc = appfsp(desc, "%s %s", m->id.a_or_d ? "Digital" : "Analog", "Display");
+
+    return desc;
+}
+
+gchar **get_output_lines(const char *cmd_line) {
+    gboolean spawned;
+    gchar *out, *err;
+    gchar **ret = NULL;
+
+    spawned = g_spawn_command_line_sync(cmd_line,
+            &out, &err, NULL, NULL);
+    if (spawned) {
+        ret = g_strsplit(out, "\n", -1);
+        g_free(out);
+        g_free(err);
+    }
+    return ret;
+}
+
+static gchar *tag_make_safe_inplace(gchar *tag) {
+    if (!tag)
+        return tag;
+    if (!g_utf8_validate(tag, -1, NULL))
+        return tag; //TODO: reconsider
+    gchar *p = tag, *pd = tag;
+    while(*p) {
+        gchar *np = g_utf8_next_char(p);
+        gunichar c = g_utf8_get_char_validated(p, -1);
+        int l = g_unichar_to_utf8(c, NULL);
+        if (l == 1 && g_unichar_isalnum(c)) {
+            g_unichar_to_utf8(c, pd);
+        } else {
+            *pd = '_';
+        }
+        p = np;
+        pd++;
+    }
+    return tag;
+}
+
+static gchar *make_edid_section(monitor *m) {
+    if (m->edid_len) {
+        const gchar *vstr = monitor_vendor_str(m);
+
+        gchar *dom = NULL;
+        if (m->id.week && m->id.year)
+            dom = g_strdup_printf(_("Week %d of %d"), m->id.week, m->id.year);
+        else if (m->id.year)
+            dom = g_strdup_printf("%d", m->id.year);
+
+        gchar *bpcc = NULL;
+        if (m->id.bpc)
+            bpcc = g_strdup_printf("%d", m->id.bpc);
+
+        gchar *scr_size = NULL;
+        if (m->id.horiz_cm && m->id.vert_cm)
+            scr_size = g_strdup_printf("%d cm × %d cm", m->id.horiz_cm, m->id.vert_cm);
+
+        int aok = m->id.checksum_ok;
+        if (m->id.ext_blocks_fail) aok = 0;
+        gchar *csum = aok ? _("Ok") : _("Fail");
+
+        gchar *ret = g_strdup_printf("[%s]\n"
+            "%s=%d.%d\n" /* version */
+            "%s=%d %s\n" /* size */
+            "%s=%d\n" /* ext block */
+            "%s=%s %s\n" /* checksum */
+            "[%s]\n"
+            "%s=%s\n" /* vendor */
+            "%s=%s\n" /* name */
+            "%s=%s\n" /* dom */
+            "%s=%s\n" /* size */
+            "%s=%s\n" /* sig type */
+            "%s=%s\n" /* bpcc */
+            ,
+            _("EDID Meta"),
+            _("Version"), (int)m->id.ver_major, (int)m->id.ver_minor,
+            _("Data Size"), m->id.size, _("bytes"),
+            _("Extension Blocks"), m->id.ext_blocks,
+            _("Checksum"), csum, aok ? "" : problem_marker(),
+            _("EDID Device"),
+            _("Vendor"), vstr,
+            _("Name"), m->id.name,
+            _("Manufacture Date"), UNKIFNULL2(dom),
+            _("Screen Size"), UNKIFNULL2(scr_size),
+            _("Signal Type"), m->id.a_or_d ? _("Digital") : _("Analog"),
+            _("Bits per Color Channel"), UNKIFNULL2(bpcc)
+            );
+        g_free(scr_size);
+        g_free(bpcc);
+        g_free(dom);
+        //printf("ret: %s\n", ret);
+        return ret;
+    } else
+        return g_strdup("");
+}
+
+gchar *monitors_get_info() {
+
+    gchar *icons = g_strdup("");
+    gchar *ret = g_strdup_printf("[%s]\n", _("Monitors"));
+    gchar tag_prefix[] = "DEV";
+
+    gchar **edid_files = get_output_lines("find /sys/devices -name edid");
+    //gchar **edid_files = get_output_lines("find /home/pburt/github/verbose-spork/junk/testing/.testing/edid/ -name edid.*");
+    int i, found = 0;
+    for(i = 0; edid_files[i]; i++) {
+        monitor *m = monitor_new_from_sysfs(edid_files[i]);
+        if (m) {
+            found++;
+            if (m->id.checksum_ok && m->drm_connection) {
+                gchar *tag = g_strdup_printf("%d-%s", found, m->drm_connection);
+                tag_make_safe_inplace(tag);
+                gchar *desc = monitor_name(m, TRUE);
+                gchar *edid_section = make_edid_section(m);
+                gchar *details = g_strdup_printf("[%s]\n"
+                                "%s=%s\n"
+                                "%s\n",
+                                _("Connection"),
+                                _("DRM"), m->drm_connection,
+                                edid_section
+                                );
+                moreinfo_add_with_prefix(tag_prefix, tag, details); /* moreinfo now owns *details */
+                ret = h_strdup_cprintf("$!%s$%s=%s|%s\n",
+                        ret,
+                        tag, m->drm_connection, desc
+                        );
+                icons = h_strdup_cprintf("Icon$%s$=%s\n", icons, tag, monitor_icon);
+                g_free(desc);
+                g_free(edid_section);
+            }
+            monitor_free(m);
+        }
+    }
+
+    no_monitors = FALSE;
+    if(!found) {
+        no_monitors = TRUE;
+        g_free(ret);
+        ret = g_strdup_printf("[%s]\n%s=%s\n" "[$ShellParam$]\nViewType=0\n",
+                _("Monitors"), _("Result"), _("(Empty)") );
+    } else {
+        ret = h_strdup_cprintf(
+            "[$ShellParam$]\nViewType=1\n"
+            "ColumnTitle$TextValue=%s\n" /* DRM connection */
+            "ColumnTitle$Value=%s\n"     /* Name */
+            "ShowColumnHeaders=true\n"
+            "%s",
+            ret,
+            _("Connection"),
+            _("Name"),
+            icons
+            );
+    }
+
+    return ret;
+}
+
+gboolean monitors_hinote(const char **msg) {
+    PARAM_NOT_UNUSED(msg);
+    return FALSE;
+}