build: make dmabuf-wayland a build option and require drm

It makes more sense as an option at this point. Also libdrm is not
optional at all. You have to get a drm format and modifier for this to
even work (the VO will just fail without DRM). Just hard require it and
remove the guards. vaapi can remain optional.

meson.build

@@ -1013,6 +1013,18 @@ if features['wayland'] and features['memfd_create']
     sources += files('video/out/vo_wlshm.c')
 endif
 
+dmabuf_wayland = get_option('dmabuf-wayland').require(
+    features['drm'] and features['memfd_create'] and features['wayland'],
+    error_message: 'drm, memfd_create, or wayland was not found!',
+)
+features += {'dmabuf-wayland': dmabuf_wayland.allowed()}
+if features['dmabuf-wayland']
+    sources += files('video/out/vo_dmabuf_wayland.c')
+    sources += files('video/out/hwdec/dmabuf_interop_wl.c')
+    sources += files('video/out/wldmabuf/context_wldmabuf.c')
+    sources += files('video/out/wldmabuf/ra_wldmabuf.c')
+endif
+
 x11_opt = get_option('x11').require(
     get_option('gpl'),
     error_message: 'the build is not GPL!',
@@ -1431,14 +1443,6 @@ if features['dmabuf-interop-pl']
     sources += files('video/out/hwdec/dmabuf_interop_pl.c')
 endif
 
-features += {'dmabuf-wayland' : features['wayland'] and features['memfd_create'] and (features['vaapi-wayland'] or features['drm'])}
-if features['dmabuf-wayland']
-    sources += files('video/out/vo_dmabuf_wayland.c')
-    sources += files('video/out/hwdec/dmabuf_interop_wl.c')
-    sources += files('video/out/wldmabuf/context_wldmabuf.c')
-    sources += files('video/out/wldmabuf/ra_wldmabuf.c')
-endif
-
 vdpau_opt = get_option('vdpau').require(
     features['x11'],
     error_message: 'x11 was not found!',

meson_options.txt

@@ -58,6 +58,7 @@ option('caca', type: 'feature', value: 'auto', description: 'CACA')
 option('cocoa', type: 'feature', value: 'auto', description: 'Cocoa')
 option('d3d11', type: 'feature', value: 'auto', description: 'Direct3D 11 video output')
 option('direct3d', type: 'feature', value: 'auto', description: 'Direct3D support')
+option('dmabuf-wayland', type: 'feature', value: 'auto', description: 'dmabuf-wayland video output')
 option('drm', type: 'feature', value: 'auto', description: 'DRM')
 option('egl', type: 'feature', value: 'auto', description: 'EGL 1.4')
 option('egl-android', type: 'feature', value: 'auto', description: 'Android EGL support')

video/out/vo_dmabuf_wayland.c

@@ -15,6 +15,7 @@
  * License along with mpv.  If not, see <http://www.gnu.org/licenses/>.
  */
 
+#include <libavutil/hwcontext_drm.h>
 #include <sys/mman.h>
 #include <unistd.h>
 #include "config.h"
@@ -22,9 +23,6 @@
 #if HAVE_VAAPI
 #include <va/va_drmcommon.h>
 #endif
-#if HAVE_DRM
-#include <libavutil/hwcontext_drm.h>
-#endif
 
 #include "common/global.h"
 #include "gpu/hwdec.h"
@@ -192,19 +190,16 @@ done:
 static uintptr_t drmprime_surface_id(struct mp_image *src)
 {
     uintptr_t id = 0;
-#if HAVE_DRM
     struct AVDRMFrameDescriptor *desc = (AVDRMFrameDescriptor *)src->planes[0];
 
     AVDRMObjectDescriptor object = desc->objects[0];
     id = (uintptr_t)object.fd;
-#endif
     return id;
 }
 
 static void drmprime_dmabuf_importer(struct buffer *buf, struct mp_image *src,
                                      struct zwp_linux_buffer_params_v1 *params)
 {
-#if HAVE_DRM
     int layer_no, plane_no;
     int max_planes = 0;
     const AVDRMFrameDescriptor *desc = (AVDRMFrameDescriptor *)src->planes[0];
@@ -227,7 +222,6 @@ static void drmprime_dmabuf_importer(struct buffer *buf, struct mp_image *src,
                                            plane.pitch, modifier >> 32, modifier & 0xffffffff);
         }
     }
-#endif
 }
 
 static intptr_t surface_id(struct vo *vo, struct mp_image *src)

wscript

@@ -569,6 +569,11 @@ video_output_features = [
         'deps': 'wayland',
         'func': check_statement('sys/mman.h',
                                 'memfd_create("mpv", MFD_CLOEXEC | MFD_ALLOW_SEALING)')
+    }, {
+        'name': '--dmabuf-wayland',
+        'desc': 'dmabuf-wayland video output',
+        'deps': 'wayland && memfd_create && drm',
+        'func': check_true,
     } , {
         'name': '--x11',
         'desc': 'X11',
@@ -696,11 +701,6 @@ video_output_features = [
         'desc': 'VAAPI (Wayland support)',
         'deps': 'vaapi && gl-wayland',
         'func': check_pkg_config('libva-wayland', '>= 1.1.0'),
-    }, {
-        'name': 'dmabuf-wayland',
-        'desc': 'Wayland dmabuf support',
-        'deps': 'wayland && memfd_create && (vaapi-wayland || drm)',
-        'func': check_true,
     }, {
         'name': '--vaapi-drm',
         'desc': 'VAAPI (DRM/EGL support)',