drm/atomic: refactor hwdec_drmprime_drm with native resources

That new API was introduced and allows to have several native resources.
Thisuses that mechanisma for drm resources rather than the deprecated
opengl-cb structs.

This patch therefore add two structs that can be used with the drm atomic interop.
 - mpv_opengl_drm_params : which will hold all the drm handles
 - mpv_opengl_drm_osd_size : which will hold osd layer size

This commit adds a drm-osd-size=WxH parameter to commandline which
allows to define the OSD plane dimension. OSD can be upscaled to
screen resolution when having OSD at video resolution is too heavy.

This is especially useful for UHD modes on embedded devices where
the GPU cannot handle UHD modes at a decent framerate.

1 files changed, 1 insertions, 0 deletions

diff --git a/video/out/drm_common.h b/video/out/drm_common.h
index ba1209e43c..16064a47fb 100644
--- a/video/out/drm_common.h
+++ b/video/out/drm_common.h
@@ -50,6 +50,7 @@ struct drm_opts {
     int drm_mode_id;
     int drm_overlay_id;
     int drm_format;
+    struct m_geometry drm_osd_size;
 };
 
 bool vt_switcher_init(struct vt_switcher *s, struct mp_log *log);