1 files changed, 83 insertions, 0 deletions
diff --git a/video/out/hwdec/dmabuf_interop_wl.c b/video/out/hwdec/dmabuf_interop_wl.c
new file mode 100644
index 0000000000..606a0aa601
--- /dev/null
+++ b/video/out/hwdec/dmabuf_interop_wl.c
@@ -0,0 +1,83 @@
+/*
+ * This file is part of mpv.
+ *
+ * mpv is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * mpv is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with mpv.  If not, see <http://www.gnu.org/licenses/>.
+ */
+#include "video/out/wldmabuf/ra_wldmabuf.h"
+#include "dmabuf_interop.h"
+
+static bool mapper_init(struct ra_hwdec_mapper *mapper,
+                        const struct ra_imgfmt_desc *desc)
+{
+    return true;
+}
+
+static void mapper_uninit(const struct ra_hwdec_mapper *mapper)
+{
+}
+
+static bool map(struct ra_hwdec_mapper *mapper,
+                struct dmabuf_interop *dmabuf_interop,
+                bool probing)
+{
+    // 1. only validate format when composed layers is enabled (i.e. vaapi)
+    // 2. for drmprime, just return true for now, as this use case
+    // has not been tested.
+    if (!dmabuf_interop->composed_layers)
+        return true;
+
+    int layer_no = 0;
+    struct dmabuf_interop_priv *mapper_p = mapper->priv;
+    uint32_t drm_format = mapper_p->desc.layers[layer_no].format;
+
+    if (mapper_p->desc.nb_layers != 1) {
+        MP_VERBOSE(mapper, "Mapped surface has separate layers - expected composed layers.\n");
+        return false;
+    } else if (!ra_compatible_format(mapper->ra, drm_format,
+        mapper_p->desc.objects[0].format_modifier)) {
+        MP_VERBOSE(mapper, "Mapped surface with format %s; drm format '%s(%016lx)' "
+                   "is not supported by compositor.\n",
+                   mp_imgfmt_to_name(mapper->src->params.hw_subfmt),
+                   mp_tag_str(drm_format),
+                   mapper_p->desc.objects[0].format_modifier);
+        return false;
+    }
+
+    MP_VERBOSE(mapper, "Supported Wayland display format %s: '%s(%016lx)'\n",
+               mp_imgfmt_to_name(mapper->src->params.hw_subfmt),
+               mp_tag_str(drm_format), mapper_p->desc.objects[0].format_modifier);
+
+    return true;
+}
+
+static void unmap(struct ra_hwdec_mapper *mapper)
+{
+}
+
+bool dmabuf_interop_wl_init(const struct ra_hwdec *hw,
+                            struct dmabuf_interop *dmabuf_interop)
+{
+    if (!ra_is_wldmabuf(hw->ra_ctx->ra))
+        return false;
+
+    if (strstr(hw->driver->name, "vaapi") != NULL)
+        dmabuf_interop->composed_layers = true;
+
+    dmabuf_interop->interop_init = mapper_init;
+    dmabuf_interop->interop_uninit = mapper_uninit;
+    dmabuf_interop->interop_map = map;
+    dmabuf_interop->interop_unmap = unmap;
+
+    return true;
+}