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authorDaniel Stone <daniels@collabora.com>2016-10-24 13:26:42 +0100
committerDaniel Stone <daniels@collabora.com>2017-08-28 20:07:13 +0100
commit4202e50fc840101f606587e94182d84014b1fbc3 (patch)
treeefcd67068673c8ca77db9327bfeb01ff3aa0930a /libweston
parentec27271492cc3ad86db31436f5aa38032f99a16f (diff)
compositor-drm: Rename fb_plane to scanout_plane
All planes being displayed have a framebuffer. What makes 'fb_plane' special is that it's being displayed as the primary plane by KMS. Previous patchsets renamed this to 'primary_plane' to match the KMS terminology, namely the CRTC's base plane, which is controlled by drmModeSetCrtc in the legacy API, and identified by PLANE_TYPE == "Primary" in the universal-plane API. However, Weston uses 'primary_plane' internally to refer to the case where client content is _not_ directly displayed on a plane, but composited via the renderer, with the result of the compositing then shown. Rename to 'scanout_plane' as our least-ambiguous name, and document it a bit. Signed-off-by: Daniel Stone <daniels@collabora.com> Reviewed-by: Pekka Paalanen <pekka.paalanen@collabora.co.uk> Reviewed-by: Emre Ucan <eucan@de.adit-jv.com>
Diffstat (limited to 'libweston')
-rw-r--r--libweston/compositor-drm.c11
1 files changed, 6 insertions, 5 deletions
diff --git a/libweston/compositor-drm.c b/libweston/compositor-drm.c
index decd586f..b707a01f 100644
--- a/libweston/compositor-drm.c
+++ b/libweston/compositor-drm.c
@@ -235,7 +235,8 @@ struct drm_output {
struct gbm_surface *gbm_surface;
uint32_t gbm_format;
- struct weston_plane fb_plane;
+ /* Plane for a fullscreen direct scanout view */
+ struct weston_plane scanout_plane;
/* The last framebuffer submitted to the kernel for this CRTC. */
struct drm_fb *fb_current;
@@ -721,7 +722,7 @@ drm_output_prepare_scanout_view(struct drm_output *output,
drm_fb_set_buffer(output->fb_pending, buffer);
- return &output->fb_plane;
+ return &output->scanout_plane;
}
static struct drm_fb *
@@ -2784,10 +2785,10 @@ drm_output_enable(struct weston_output *base)
weston_plane_init(&output->cursor_plane, b->compositor,
INT32_MIN, INT32_MIN);
- weston_plane_init(&output->fb_plane, b->compositor, 0, 0);
+ weston_plane_init(&output->scanout_plane, b->compositor, 0, 0);
weston_compositor_stack_plane(b->compositor, &output->cursor_plane, NULL);
- weston_compositor_stack_plane(b->compositor, &output->fb_plane,
+ weston_compositor_stack_plane(b->compositor, &output->scanout_plane,
&b->compositor->primary_plane);
weston_log("Output %s, (connector %d, crtc %d)\n",
@@ -2830,7 +2831,7 @@ drm_output_deinit(struct weston_output *base)
else
drm_output_fini_egl(output);
- weston_plane_release(&output->fb_plane);
+ weston_plane_release(&output->scanout_plane);
weston_plane_release(&output->cursor_plane);
drmModeFreeProperty(output->dpms_prop);