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MonitorManager: add gamma support
Add GetCrtcGamma() and SetCrtcGamma(), that wrap the similarly named XRandR API. These are used by GnomeRR inside the color plugin of the control center (and may go away if the color plugin decides to do something different under wayland) https://bugzilla.gnome.org/show_bug.cgi?id=705670
This commit is contained in:
Giovanni Campagna
Giovanni Campagna
parent
cd20f1bc0b
commit
3b61b85f2c
@ -1880,12 +1880,192 @@ meta_monitor_manager_handle_change_backlight (MetaDBusDisplayConfig *skeleton,
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return TRUE;
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return TRUE;
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}
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}
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#ifdef HAVE_RANDR
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static void
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handle_get_crtc_gamma_xrandr (MetaMonitorManager *manager,
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MetaCRTC *crtc,
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gsize *size,
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unsigned short **red,
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unsigned short **green,
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unsigned short **blue)
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{
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XRRCrtcGamma *gamma;
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gamma = XRRGetCrtcGamma (manager->xdisplay, (XID)crtc->crtc_id);
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*size = gamma->size;
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*red = g_memdup (gamma->red, sizeof (unsigned short) * gamma->size);
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*green = g_memdup (gamma->green, sizeof (unsigned short) * gamma->size);
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*blue = g_memdup (gamma->blue, sizeof (unsigned short) * gamma->size);
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XRRFreeGamma (gamma);
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}
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#endif
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static void
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handle_get_crtc_gamma_dummy (MetaMonitorManager *manager,
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MetaCRTC *crtc,
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gsize *size,
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unsigned short **red,
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unsigned short **green,
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unsigned short **blue)
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{
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*size = 0;
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*red = g_new0 (unsigned short, 0);
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*green = g_new0 (unsigned short, 0);
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*blue = g_new0 (unsigned short, 0);
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}
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static gboolean
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meta_monitor_manager_handle_get_crtc_gamma (MetaDBusDisplayConfig *skeleton,
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GDBusMethodInvocation *invocation,
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guint serial,
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guint crtc_id)
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{
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MetaMonitorManager *manager = META_MONITOR_MANAGER (skeleton);
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MetaCRTC *crtc;
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gsize size;
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unsigned short *red;
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unsigned short *green;
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unsigned short *blue;
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GBytes *red_bytes, *green_bytes, *blue_bytes;
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GVariant *red_v, *green_v, *blue_v;
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if (serial != manager->serial)
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{
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g_dbus_method_invocation_return_error (invocation, G_DBUS_ERROR,
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G_DBUS_ERROR_ACCESS_DENIED,
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"The requested configuration is based on stale information");
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return TRUE;
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}
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if (crtc_id >= manager->n_crtcs)
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{
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g_dbus_method_invocation_return_error (invocation, G_DBUS_ERROR,
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G_DBUS_ERROR_INVALID_ARGS,
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"Invalid crtc id");
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return TRUE;
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}
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crtc = &manager->crtcs[crtc_id];
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if (manager->backend == META_BACKEND_XRANDR)
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handle_get_crtc_gamma_xrandr (manager, crtc, &size, &red, &green, &blue);
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else
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handle_get_crtc_gamma_dummy (manager, crtc, &size, &red, &green, &blue);
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red_bytes = g_bytes_new_take (red, size * sizeof (unsigned short));
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green_bytes = g_bytes_new_take (green, size * sizeof (unsigned short));
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blue_bytes = g_bytes_new_take (blue, size * sizeof (unsigned short));
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red_v = g_variant_new_from_bytes (G_VARIANT_TYPE ("aq"), red_bytes, TRUE);
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green_v = g_variant_new_from_bytes (G_VARIANT_TYPE ("aq"), green_bytes, TRUE);
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blue_v = g_variant_new_from_bytes (G_VARIANT_TYPE ("aq"), blue_bytes, TRUE);
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meta_dbus_display_config_complete_get_crtc_gamma (skeleton, invocation,
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red_v, green_v, blue_v);
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g_bytes_unref (red_bytes);
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g_bytes_unref (green_bytes);
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g_bytes_unref (blue_bytes);
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return TRUE;
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}
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#ifdef HAVE_RANDR
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static void
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handle_set_crtc_gamma_xrandr (MetaMonitorManager *manager,
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MetaCRTC *crtc,
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gsize size,
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unsigned short *red,
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unsigned short *green,
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unsigned short *blue)
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{
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XRRCrtcGamma gamma;
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gamma.size = size;
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gamma.red = red;
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gamma.green = green;
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gamma.blue = blue;
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XRRSetCrtcGamma (manager->xdisplay, (XID)crtc->crtc_id, &gamma);
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}
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#endif
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static void
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handle_set_crtc_gamma_dummy (MetaMonitorManager *manager,
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MetaCRTC *crtc,
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gsize size,
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unsigned short *red,
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unsigned short *green,
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unsigned short *blue)
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{
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}
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static gboolean
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meta_monitor_manager_handle_set_crtc_gamma (MetaDBusDisplayConfig *skeleton,
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GDBusMethodInvocation *invocation,
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guint serial,
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guint crtc_id,
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GVariant *red_v,
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GVariant *green_v,
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GVariant *blue_v)
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{
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MetaMonitorManager *manager = META_MONITOR_MANAGER (skeleton);
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MetaCRTC *crtc;
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gsize size, dummy;
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unsigned short *red;
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unsigned short *green;
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unsigned short *blue;
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GBytes *red_bytes, *green_bytes, *blue_bytes;
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if (serial != manager->serial)
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{
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g_dbus_method_invocation_return_error (invocation, G_DBUS_ERROR,
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G_DBUS_ERROR_ACCESS_DENIED,
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"The requested configuration is based on stale information");
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return TRUE;
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}
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if (crtc_id >= manager->n_crtcs)
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{
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g_dbus_method_invocation_return_error (invocation, G_DBUS_ERROR,
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G_DBUS_ERROR_INVALID_ARGS,
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"Invalid crtc id");
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return TRUE;
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}
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crtc = &manager->crtcs[crtc_id];
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red_bytes = g_variant_get_data_as_bytes (red_v);
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green_bytes = g_variant_get_data_as_bytes (green_v);
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blue_bytes = g_variant_get_data_as_bytes (blue_v);
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size = g_bytes_get_size (red_bytes) / sizeof (unsigned short);
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red = (unsigned short*) g_bytes_get_data (red_bytes, &dummy);
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green = (unsigned short*) g_bytes_get_data (green_bytes, &dummy);
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blue = (unsigned short*) g_bytes_get_data (blue_bytes, &dummy);
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if (manager->backend == META_BACKEND_XRANDR)
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handle_set_crtc_gamma_xrandr (manager, crtc, size, red, green, blue);
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else
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handle_set_crtc_gamma_dummy (manager, crtc, size, red, green, blue);
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meta_dbus_display_config_complete_set_crtc_gamma (skeleton, invocation);
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g_bytes_unref (red_bytes);
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g_bytes_unref (green_bytes);
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g_bytes_unref (blue_bytes);
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return TRUE;
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}
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static void
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static void
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meta_monitor_manager_display_config_init (MetaDBusDisplayConfigIface *iface)
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meta_monitor_manager_display_config_init (MetaDBusDisplayConfigIface *iface)
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{
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{
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iface->handle_get_resources = meta_monitor_manager_handle_get_resources;
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iface->handle_get_resources = meta_monitor_manager_handle_get_resources;
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iface->handle_apply_configuration = meta_monitor_manager_handle_apply_configuration;
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iface->handle_apply_configuration = meta_monitor_manager_handle_apply_configuration;
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iface->handle_change_backlight = meta_monitor_manager_handle_change_backlight;
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iface->handle_change_backlight = meta_monitor_manager_handle_change_backlight;
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iface->handle_get_crtc_gamma = meta_monitor_manager_handle_get_crtc_gamma;
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iface->handle_set_crtc_gamma = meta_monitor_manager_handle_set_crtc_gamma;
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}
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}
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static void
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static void
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@ -62,7 +62,6 @@
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CRTC; they are not necessarily reflected in
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CRTC; they are not necessarily reflected in
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the hardware.
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the hardware.
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No property is specified in this version of the API.
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No property is specified in this version of the API.
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FIXME: gamma?
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Note: all geometry information refers to the untransformed
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Note: all geometry information refers to the untransformed
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display.
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display.
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@ -213,6 +212,42 @@
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<arg name="value" direction="in" type="i" />
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<arg name="value" direction="in" type="i" />
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</method>
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</method>
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<!--
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GetCrtcGamma:
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@serial: configuration serial
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@crtc: API id of the crtc
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@red: red gamma ramp
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@green: green gamma ramp
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@blue: blue gamma ramp
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Requests the current gamma ramps of @crtc.
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-->
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<method name="GetCrtcGamma">
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<arg name="serial" direction="in" type="u" />
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<arg name="crtc" direction="in" type="u" />
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<arg name="red" direction="out" type="aq" />
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<arg name="green" direction="out" type="aq" />
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<arg name="blue" direction="out" type="aq" />
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</method>
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<!--
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SetCrtcGamma:
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@serial: configuration serial
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@crtc: API id of the crtc
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@red: red gamma ramp
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@green: green gamma ramp
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@blue: blue gamma ramp
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Changes the gamma ramps of @crtc.
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-->
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<method name="SetCrtcGamma">
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<arg name="serial" direction="in" type="u" />
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<arg name="crtc" direction="in" type="u" />
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<arg name="red" direction="in" type="aq" />
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<arg name="green" direction="in" type="aq" />
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<arg name="blue" direction="in" type="aq" />
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</method>
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<!--
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<!--
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PowerSaveMode:
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PowerSaveMode:
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