vo_dmabuf_wayland: use special ra_ctx_create_by_name

vo_dmabuf_wayland has its own ra and context so it can handle all the
different hwdec correctly. Unfortunately, this API was pretty clearly
designed with vo_gpu/vo_gpu_next in mind and has a lot of concepts that
don't make sense for vo_dmabuf_wayland. We still want to bolt on a
ra_ctx, but instead let's rework the ra_ctx logic a little bit. First,
this introduces a hidden bool within the ra_ctx_fns that is used to hide
the wldmabuf context from users as an option (unlike the other usual
contexts). We also want to make sure that hidden contexts wouldn't be
autoprobed in the usual ra_ctx_create, so we be sure to skip those in
that function. Additionally, let's create a new ra_ctx_create_by_name
function which does exactly what says. It specifically selects a context
based on a passed string. This function has no probing or option logic
is simplified just for what vo_dmabuf_wayland needs. The api/context
validations functions are modified just a little bit to make sure hidden
contexts are skipped and the documentation is updated to remove this
entries. Fixes #10793.

1 files changed, 5 insertions, 0 deletions

diff --git a/video/out/gpu/context.h b/video/out/gpu/context.h
index 7ad37f0d61..72ad65f470 100644
--- a/video/out/gpu/context.h
+++ b/video/out/gpu/context.h
@@ -36,6 +36,8 @@ struct ra_ctx_fns {
     const char *type; // API type (for --gpu-api)
     const char *name; // name (for --gpu-context)
 
+    bool hidden; // hide the ra_ctx from users
+
     // Resize the window, or create a new window if there isn't one yet.
     // Currently, there is an unfortunate interaction with ctx->vo, and
     // display size etc. are determined by it.
@@ -101,3 +103,6 @@ struct ra_swapchain_fns {
 // the underlying `struct ra`, and perhaps the underlying VO backend.
 struct ra_ctx *ra_ctx_create(struct vo *vo, struct ra_ctx_opts opts);
 void ra_ctx_destroy(struct ra_ctx **ctx);
+
+// Special case of creating a ra_ctx while specifiying a specific context by name.
+struct ra_ctx *ra_ctx_create_by_name(struct vo *vo, const char *name);