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-rw-r--r--src/server.c275
1 files changed, 254 insertions, 21 deletions
diff --git a/src/server.c b/src/server.c
index d1bdc30..d046a95 100644
--- a/src/server.c
+++ b/src/server.c
@@ -323,32 +323,145 @@ static int connection_closed(int client)
/**
* Handle a ‘Command: enumerate-crtcs’ message
*
- * @param conn The index of the connection
- * @return Zero on success (even if ignored), -1 on error
+ * @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
*/
-static int enumerate_crtcs(size_t conn)
+static int enumerate_crtcs(size_t conn, char* message_id)
{
- /* TODO */ (void) conn;
+ size_t i, n = 0, len;
+ ssize_t m;
+ char* buf;
- return 0;
+ if (message_id == NULL)
+ return fprintf(stderr, "%s: ignoring incomplete Command: enumerate-crtcs message\n", argv0), 0;
+
+ for (i = 0; i < outputs_n; i++)
+ n += strlen(outputs[i].name) + 1;
+
+ snprintf(NULL, 0,
+ "In response to: %s\n"
+ "Length: %zu\n"
+ "\n%zn",
+ message_id, n, &m);
+
+ if (!(buf = malloc(n + (size_t)m)))
+ return -1;
+
+ sprintf(buf,
+ "In response to: %s\n"
+ "Length: %zu\n"
+ "\n",
+ message_id, n);
+
+ n = (size_t)m;
+
+ 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);
}
/**
* Handle a ‘Command: set-gamma’ message
*
- * @param conn The index of the connection
- * @param crtc The value of the ‘CRTC’ header
- * @return Zero on success (even if ignored), -1 on error
+ * @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
*/
-static int get_gamma_info(size_t conn, char* crtc)
+static int get_gamma_info(size_t conn, char* message_id, char* crtc)
{
- if (crtc == NULL)
+ struct output* output;
+ char* buf;
+ char depth[3];
+ const char* supported;
+ ssize_t n;
+
+ if ((message_id == NULL) || (crtc == NULL))
return fprintf(stderr, "%s: ignoring incomplete Command: get-gamma-info message\n", argv0), 0;
- /* TODO */ (void) conn;
+ output = output_find_by_name(crtc, outputs, outputs_n);
+ if (output == NULL)
+ {
+ snprintf(NULL, 0,
+ "Command: error\n"
+ "In response to: %s\n"
+ "Error: custom\n"
+ "Length: 13\n"
+ "\n"
+ "No such CRTC\n%zn",
+ message_id, &n);
+
+ if (!(buf = malloc((size_t)n)))
+ return -1;
+
+ sprintf(buf,
+ "Command: error\n"
+ "In response to: %s\n"
+ "Error: custom\n"
+ "Length: 13\n"
+ "\n"
+ "No such CRTC\n",
+ message_id);
+
+ return send_message(conn, buf, (size_t)n);
+ }
- return 0;
+ switch (output->depth)
+ {
+ case -2:
+ sprintf(depth, "%s", "d");
+ break;
+ case -1:
+ sprintf(depth, "%s", "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;
+ }
+
+ snprintf(NULL, 0,
+ "In response to: %s\n"
+ "Cooperative: yes\n"
+ "Depth: %s\n"
+ "Red size: %zu\n"
+ "Green size: %zu\n"
+ "Blue size: %zu\n"
+ "Gamma support: %s\n"
+ "\n%zn",
+ message_id, depth, output->red_size, output->green_size,
+ output->blue_size, supported, &n);
+
+ if (!(buf = malloc((size_t)n)))
+ return -1;
+
+ sprintf(buf,
+ "In response to: %s\n"
+ "Cooperative: yes\n"
+ "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, (size_t)n);
}
@@ -356,18 +469,28 @@ static int get_gamma_info(size_t conn, char* crtc)
* Handle a ‘Command: get-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
* @param coalesce The value of the ‘Coalesce’ header
* @param high_priority The value of the ‘High priority’ header
* @param low_priority The value of the ‘Low priority’ header
* @return Zero on success (even if ignored), -1 on error
*/
-static int get_gamma(size_t conn, char* crtc, char* coalesce, char* high_priority, char* low_priority)
+static int get_gamma(size_t conn, char* message_id, char* crtc, char* coalesce,
+ char* high_priority, char* low_priority)
{
+ struct output* output;
int64_t high, low;
int coal;
-
- if ((crtc == NULL) ||
+ char* buf;
+ ssize_t m;
+ size_t start, end, len, n, i;
+ char depth[3];
+ char tables[sizeof("Tables: \n") + 3 * sizeof(size_t)];
+ const char *error = NULL;
+
+ if ((message_id == NULL) ||
+ (crtc == NULL) ||
(coalesce == NULL) ||
(high_priority == NULL) ||
(low_priority == NULL))
@@ -384,9 +507,117 @@ static int get_gamma(size_t conn, char* crtc, char* coalesce, char* high_priorit
return fprintf(stderr, "%s: ignoring Command: get-gamma message with bad Coalesce value: %s\n",
argv0, coalesce), 0;
- /* TODO */ (void) coal, (void) high, (void) low, (void) conn;
+ output = output_find_by_name(crtc, outputs, outputs_n);
+ if (output == NULL)
+ error = "No such CRTC";
+ else if (output->supported == LIBGAMMA_NO)
+ error = "CRTC does not support gamma ramps";
- return 0;
+ if (error != NULL)
+ {
+ snprintf(NULL, 0,
+ "Command: error\n"
+ "In response to: %s\n"
+ "Error: custom\n"
+ "Length: %zu\n"
+ "\n"
+ "%s\n%zn",
+ message_id, strlen(error) + 1, error, &m);
+
+ if (!(buf = malloc((size_t)m)))
+ return -1;
+
+ sprintf(buf,
+ "Command: error\n"
+ "In response to: %s\n"
+ "Error: custom\n"
+ "Length: %zu\n"
+ "\n"
+ "%s\n",
+ message_id, strlen(error) + 1, error);
+
+ return send_message(conn, buf, (size_t)m);
+ }
+
+ for (start = 0; start < output->table_size; start++)
+ if (output->table_filters[start].priority <= high)
+ break;
+
+ for (end = output->table_size; end > 0; end--)
+ if (output->table_filters[end - 1].priority >= low)
+ break;
+
+ switch (output->depth)
+ {
+ case -2:
+ sprintf(depth, "%s", "d");
+ break;
+ case -1:
+ sprintf(depth, "%s", "f");
+ break;
+ default:
+ sprintf(depth, "%i", output->depth);
+ break;
+ }
+
+ if (coal)
+ {
+ *tables = '\0';
+ n = output->ramps_size;
+ }
+ else
+ {
+ sprintf(tables, "Tables: %zu\n", end - start);
+ n = (sizeof(int64_t) + output->ramps_size) * (end - start);
+ for (i = start; i < end; i++)
+ n += strlen(output->table_filters[i].class) + 1;
+ }
+
+ snprintf(NULL, 0,
+ "In response to: %s\n"
+ "Depth: %s\n"
+ "Red size: %zu\n"
+ "Green size: %zu\n"
+ "Blue size: %zu\n"
+ "%s"
+ "Length: %zu\n"
+ "\n%zn",
+ message_id, depth, output->red_size, output->green_size,
+ output->blue_size, tables, n, &m);
+
+ if (!(buf = malloc(n + (size_t)m)))
+ return -1;
+
+ sprintf(buf,
+ "In response to: %s\n"
+ "Depth: %s\n"
+ "Red size: %zu\n"
+ "Green size: %zu\n"
+ "Blue size: %zu\n"
+ "%s"
+ "Length: %zu\n"
+ "\n",
+ message_id, depth, output->red_size, output->green_size,
+ output->blue_size, tables, n);
+
+ n = (size_t)m;
+ if (coal)
+ {
+ /* TODO coalesce */
+ }
+ else
+ for (i = start; i < end; i++)
+ {
+ *(int64_t*)(buf + n) = output->table_filters[i].priority;
+ n += sizeof(int64_t);
+ len = strlen(output->table_filters[i].class) + 1;
+ memcpy(buf + n, output->table_filters[i].class, len);
+ n += len;
+ memcpy(buf + n, output->table_filters[i].ramps, output->ramps_size);
+ n += output->ramps_size;
+ }
+
+ return send_message(conn, buf, n);
}
@@ -503,6 +734,7 @@ static int handle_connection(size_t conn)
char* priority = NULL;
char* class = NULL;
char* lifespan = NULL;
+ char* message_id = NULL; /* Never report as superfluous */
size_t i;
again:
@@ -522,7 +754,7 @@ static int handle_connection(size_t conn)
default:
return -1;
case ECONNRESET:;
- /* Fall throught to `case -2` in outer switch. */
+ /* Fall throught to `case -2` in outer switch */
}
case -2:
shutdown(fd, SHUT_RDWR);
@@ -548,6 +780,7 @@ static int handle_connection(size_t conn)
else if (strstr(header, "Priority: ") == header) priority = strstr(header, ": ") + 2;
else if (strstr(header, "Class: ") == header) class = strstr(header, ": ") + 2;
else if (strstr(header, "Lifespan: ") == header) lifespan = strstr(header, ": ") + 2;
+ else if (strstr(header, "Message ID: ") == header) message_id = strstr(header, ": ") + 2;
else
fprintf(stderr, "%s: ignoring unrecognised header: %s\n", argv0, header);
}
@@ -559,19 +792,19 @@ static int handle_connection(size_t conn)
{
if (crtc || coalesce || high_priority || low_priority || priority || class || lifespan)
fprintf(stderr, "%s: ignoring superfluous headers in Command: enumerate-crtcs message\n", argv0);
- r = enumerate_crtcs(conn);
+ r = enumerate_crtcs(conn, message_id);
}
else if (!strcmp(command, "get-gamma-info"))
{
if (coalesce || high_priority || low_priority || priority || class || lifespan)
fprintf(stderr, "%s: ignoring superfluous headers in Command: get-gamma-info message\n", argv0);
- r = get_gamma_info(conn, crtc);
+ r = get_gamma_info(conn, message_id, crtc);
}
else if (!strcmp(command, "get-gamma"))
{
if (priority || class || lifespan)
fprintf(stderr, "%s: ignoring superfluous headers in Command: get-gamma message\n", argv0);
- r = get_gamma(conn, crtc, coalesce, high_priority, low_priority);
+ r = get_gamma(conn, message_id, crtc, coalesce, high_priority, low_priority);
}
else if (!strcmp(command, "set-gamma"))
{
generated by cgit v1.2.3-70-g09d2 (git 2.47.0) at 2024-11-22 17:38:16 +0000