aboutsummaryrefslogtreecommitdiffstats
path: root/libgamma_x_vidmode_method_capabilities.c
diff options
context:
space:
mode:
Diffstat (limited to '')
-rw-r--r--libgamma_x_vidmode_method_capabilities.c37
1 files changed, 37 insertions, 0 deletions
diff --git a/libgamma_x_vidmode_method_capabilities.c b/libgamma_x_vidmode_method_capabilities.c
new file mode 100644
index 0000000..5ef885d
--- /dev/null
+++ b/libgamma_x_vidmode_method_capabilities.c
@@ -0,0 +1,37 @@
+/* See LICENSE file for copyright and license details. */
+#include "common.h"
+
+
+/**
+ * Return the capabilities of the adjustment method
+ *
+ * @param this The data structure to fill with the method's capabilities
+ */
+void
+libgamma_x_vidmode_method_capabilities(libgamma_method_capabilities_t *restrict this)
+{
+ char *restrict display = getenv("DISPLAY");
+ /* Gamma ramps size and depth can be queried */
+ this->crtc_information = LIBGAMMA_CRTC_INFO_GAMMA_SIZE | LIBGAMMA_CRTC_INFO_GAMMA_DEPTH;
+ /* X VidMode supports multiple sites and partitions but not CRTC:s */
+ this->default_site_known = (display && *display) ? 1 : 0;
+ this->multiple_sites = 1;
+ this->multiple_partitions = 1;
+ this->multiple_crtcs = 0;
+ /* Partitions are screens and not graphics cards in X */
+ this->partitions_are_graphics_cards = 0;
+ /* X does not have system restore capabilities */
+ this->site_restore = 0;
+ this->partition_restore = 0;
+ this->crtc_restore = 0;
+ /* Gamma ramp sizes are identical but not fixed */
+ this->identical_gamma_sizes = 1;
+ this->fixed_gamma_size = 0;
+ /* Gamma ramp depths are fixed */
+ this->fixed_gamma_depth = 1;
+ /* X VidMode is a real non-faked adjustment method */
+ this->real = 1;
+ this->fake = 0;
+ /* Gamma ramp adjustments are persistent */
+ this->auto_restore = 0;
+}