vo_opengl, vo_opengl_cb: check GL version in renderer

vo_opengl actually checks this in the context creation code already, but
it still increases robustness in case the requirements are changed
later.

3 files changed, 9 insertions, 5 deletions

diff --git a/video/out/gl_video.c b/video/out/gl_video.c
index 067f8f2b1c..5235f1bd1e 100644
--- a/video/out/gl_video.c
+++ b/video/out/gl_video.c
@@ -2440,6 +2440,11 @@ void gl_video_set_output_depth(struct gl_video *p, int r, int g, int b)
 
 struct gl_video *gl_video_init(GL *gl, struct mp_log *log, struct osd_state *osd)
 {
+    if (!(gl->mpgl_caps & MPGL_CAP_GL21)) {
+        mp_err(log, "At least OpenGL 2.1 or OpenGL ES 2.0 required.\n");
+        return NULL;
+    }
+
     struct gl_video *p = talloc_ptrtype(NULL, p);
     *p = (struct gl_video) {
         .gl = gl,
diff --git a/video/out/vo_opengl.c b/video/out/vo_opengl.c
index bc98f513a7..67cd3ce9dd 100644
--- a/video/out/vo_opengl.c
+++ b/video/out/vo_opengl.c
@@ -422,6 +422,8 @@ static int preinit(struct vo *vo)
         p->gl->SwapInterval(p->swap_interval);
 
     p->renderer = gl_video_init(p->gl, vo->log, vo->osd);
+    if (!p->renderer)
+        goto err_out;
     gl_video_set_output_depth(p->renderer, p->glctx->depth_r, p->glctx->depth_g,
                               p->glctx->depth_b);
     gl_video_set_options(p->renderer, p->renderer_opts);
diff --git a/video/out/vo_opengl_cb.c b/video/out/vo_opengl_cb.c
index 363b6a333f..c0870d3b42 100644
--- a/video/out/vo_opengl_cb.c
+++ b/video/out/vo_opengl_cb.c
@@ -143,12 +143,9 @@ int mpv_opengl_cb_init_gl(struct mpv_opengl_cb_context *ctx, const char *exts,
 
     mpgl_load_functions2(ctx->gl, get_proc_address, get_proc_address_ctx,
                          exts, ctx->log);
-    int caps = MPGL_CAP_GL21;
-    if ((ctx->gl->mpgl_caps & caps) != caps) {
-        MP_FATAL(ctx, "Missing OpenGL features.\n");
-        return MPV_ERROR_UNSUPPORTED;
-    }
     ctx->renderer = gl_video_init(ctx->gl, ctx->log, ctx->osd);
+    if (!ctx->renderer)
+        return MPV_ERROR_UNSUPPORTED;
     ctx->hwdec = gl_hwdec_load_api(ctx->log, ctx->gl, ctx->hwapi, &ctx->hwdec_info);
     gl_video_set_hwdec(ctx->renderer, ctx->hwdec);