Add a set_gamma vfunc on weston_output

diff --git a/src/compositor-drm.c b/src/compositor-drm.c
index c8016cd..857aeed 100644 (file)
--- a/src/compositor-drm.c
+++ b/src/compositor-drm.c
@@ -545,6 +545,27 @@ drm_output_render(struct drm_output *output, pixman_region32_t *damage)
 }
 
 static void
+drm_output_set_gamma(struct weston_output *output_base,
+                    uint16_t size, uint16_t *r, uint16_t *g, uint16_t *b)
+{
+       int rc;
+       struct drm_output *output = (struct drm_output *) output_base;
+       struct drm_compositor *compositor = (struct drm_compositor *) output->base.compositor;
+
+       /* check */
+       if (output_base->gamma_size != size)
+               return;
+       if (!output->original_crtc)
+               return;
+
+       rc = drmModeCrtcSetGamma(compositor->drm.fd,
+                                output->crtc_id,
+                                size, r, g, b);
+       if (rc)
+               weston_log("set gamma failed: %m\n");
+}
+
+static void
 drm_output_repaint(struct weston_output *output_base,
                   pixman_region32_t *damage)
 {
@@ -1799,6 +1820,9 @@ create_output_for_connector(struct drm_compositor *ec,
        output->base.set_dpms = drm_set_dpms;
        output->base.switch_mode = drm_output_switch_mode;
 
+       output->base.gamma_size = output->original_crtc->gamma_size;
+       output->base.set_gamma = drm_output_set_gamma;
+
        weston_plane_init(&output->cursor_plane, 0, 0);
        weston_plane_init(&output->fb_plane, 0, 0);
 

diff --git a/src/compositor.h b/src/compositor.h
index ce63fc2..63d1127 100644 (file)
--- a/src/compositor.h
+++ b/src/compositor.h
@@ -198,6 +198,13 @@ struct weston_output {
        uint32_t backlight_current;
        void (*set_backlight)(struct weston_output *output, uint32_t value);
        void (*set_dpms)(struct weston_output *output, enum dpms_enum level);
+
+       uint16_t gamma_size;
+       void (*set_gamma)(struct weston_output *output,
+                         uint16_t size,
+                         uint16_t *r,
+                         uint16_t *g,
+                         uint16_t *b);
 };
 
 struct weston_xkb_info {