vo_opengl: refactor EGL context information callback

Move the ugliness from x11egl.c to common.c, so that the ugliness
doesn't have to be duplicated in wayland.c.

1 files changed, 26 insertions, 0 deletions

diff --git a/video/out/opengl/common.c b/video/out/opengl/common.c
index 640a357b12..7fced42d01 100644
--- a/video/out/opengl/common.c
+++ b/video/out/opengl/common.c
@@ -555,6 +555,29 @@ int mpgl_validate_backend_opt(struct mp_log *log, const struct m_option *opt,
     return mpgl_find_backend(s) >= -1 ? 1 : M_OPT_INVALID;
 }
 
+#if HAVE_C11_TLS
+static _Thread_local MPGLContext *current_context;
+
+static void * GLAPIENTRY get_native_display(const char *name)
+{
+    if (current_context && current_context->native_display_type &&
+        name && strcmp(current_context->native_display_type, name) == 0)
+        return current_context->native_display;
+    return NULL;
+}
+
+static void set_current_context(MPGLContext *context)
+{
+    current_context = context;
+    if (context && !context->gl->MPGetNativeDisplay)
+        context->gl->MPGetNativeDisplay = get_native_display;
+}
+#else
+static void set_current_context(MPGLContext *context)
+{
+}
+#endif
+
 static MPGLContext *init_backend(struct vo *vo, const struct backend *backend,
                                  bool probing, int vo_flags)
 {
@@ -602,6 +625,8 @@ static MPGLContext *init_backend(struct vo *vo, const struct backend *backend,
 
     ctx->gl->debug_context = !!(vo_flags & VOFLAG_GL_DEBUG);
 
+    set_current_context(ctx);
+
     return ctx;
 
 cleanup:
@@ -657,6 +682,7 @@ void mpgl_swap_buffers(struct MPGLContext *ctx)
 
 void mpgl_uninit(MPGLContext *ctx)
 {
+    set_current_context(NULL);
     if (ctx) {
         if (ctx->driver) {
             ctx->driver->uninit(ctx);