From 66ed50aa0024244cb12795182449b2769d633607 Mon Sep 17 00:00:00 2001
From: wm4 <wm4@nowhere>
Date: Wed, 4 Nov 2015 21:47:20 +0100
Subject: vo_vdpau: check VDP_RGBA_FORMAT_A8 support

Apparently not all vdpau drivers in the wild support this format (VDPAU
SUNXI can't). Revert to RGB in these cases.
---
 video/out/vo_vdpau.c | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

(limited to 'video/out/vo_vdpau.c')

diff --git a/video/out/vo_vdpau.c b/video/out/vo_vdpau.c
index 3bb234f401..73aae1d45c 100644
--- a/video/out/vo_vdpau.c
+++ b/video/out/vo_vdpau.c
@@ -104,6 +104,7 @@ struct vdpctx {
     VdpRect                            src_rect_vid;
     VdpRect                            out_rect_vid;
     struct mp_osd_res                  osd_rect;
+    VdpBool                            supports_a8;
 
     int                                surface_num; // indexes output_surfaces
     int                                query_surface_num;
@@ -711,8 +712,8 @@ static void draw_osd(struct vo *vo)
     if (!status_ok(vo))
         return;
 
-    static const bool formats[SUBBITMAP_COUNT] = {
-        [SUBBITMAP_LIBASS] = true,
+    bool formats[SUBBITMAP_COUNT] = {
+        [SUBBITMAP_LIBASS] = vc->supports_a8,
         [SUBBITMAP_RGBA] = true,
     };
 
@@ -1069,6 +1070,9 @@ static int preinit(struct vo *vo)
     vc->vdp_device = vc->mpvdp->vdp_device;
     vc->vdp = &vc->mpvdp->vdp;
 
+    vc->vdp->bitmap_surface_query_capabilities(vc->vdp_device, VDP_RGBA_FORMAT_A8,
+                            &vc->supports_a8, &(uint32_t){0}, &(uint32_t){0});
+
     vc->video_eq.capabilities = MP_CSP_EQ_CAPS_COLORMATRIX;
 
     return 0;
-- 
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