Use libgamma to determine available adjustment method configuration options

Signed-off-by: Mattias Andrée <m@maandree.se>

1 files changed, 46 insertions, 0 deletions

diff --git a/src/backend-direct.c b/src/backend-direct.c
index d0a53eb..5654947 100644
--- a/src/backend-direct.c
+++ b/src/backend-direct.c
@@ -197,6 +197,52 @@ direct_create(struct gamma_state **state_out, int method, const char *method_nam
 }
 
 
+void
+direct_print_help(FILE *f, int method)
+{
+	struct libgamma_method_capabilities caps;
+
+	if (libgamma_method_capabilities(&caps, sizeof(caps), method)) {
+		fputs(_("Adjustment not available\n"), f);
+		fputs("\n", f);
+		return;
+	}
+
+	if (caps.multiple_partitions && caps.partitions_are_graphics_cards) {
+		/* TRANSLATORS: left column must not be translated */
+		fputs(_("  card=N        Graphics card to apply adjustments to\n"), f);
+	} else if (caps.multiple_partitions) {
+		/* TRANSLATORS: left column must not be translated */
+		fputs(_("  screen=N      X screen to apply adjustments to\n"), f);
+	}
+
+	if (caps.multiple_crtcs) {
+		/* TRANSLATORS: left column must not be translated */
+		fputs(_("  crtc=N        List of comma-separated CRTCs to apply adjustments to\n"), f);
+	}
+
+	if (caps.multiple_partitions || caps.multiple_crtcs)
+		fputs("\n", f);
+}
+
+
+int
+direct_set_option(struct gamma_state *state, const char *key, const char *value)
+{
+	if (state->multiple_partitions && !strcasecmp(key, state->partitions_are_graphics_cards ? "card" : "screen")) {
+		return direct_set_partitions(state, key, value);
+	} else if (state->multiple_crtcs && !strcasecmp(key, "crtc")) {
+		return direct_set_crtcs(state, key, value);
+	} else if (!strcasecmp(key, "preserve")) {
+		weprintf(_("Deprecated method parameter ignored: `%s'."), key);
+		return 0;
+	} else {
+		weprintf(_("Unknown method parameter: `%s'."), key);
+		return -1;
+	}
+}
+
+
 int
 direct_set_partitions(struct gamma_state *state, const char *key, const char *value)
 {