[vlc-commits] opengl: fix wrong visible pitch for subpictures

[Thomas Guillem]

vlc/vlc-3.0 | branch: master | Thomas Guillem <thomas at gllm.fr> | Fri Jun  8 17:09:12 2018 +0200| [700b2910c0b2da3741d2124119ff19437bd5f428] | committer: Thomas Guillem

opengl: fix wrong visible pitch for subpictures

The i_visible_pitch is used to calculate GL_UNPACK_ROW_LENGTH and need to
correspond to the region one since textures are allocated from it.

(cherry picked from commit 256c740852ae2d5256772bf70273a8ab5799ad65)
Signed-off-by: Thomas Guillem <thomas at gllm.fr>

> http://git.videolan.org/gitweb.cgi/vlc/vlc-3.0.git/?a=commit;h=700b2910c0b2da3741d2124119ff19437bd5f428
---

 modules/video_output/opengl/vout_helper.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/modules/video_output/opengl/vout_helper.c b/modules/video_output/opengl/vout_helper.c
index 6c664b3f38..4ff70adce9 100644
--- a/modules/video_output/opengl/vout_helper.c
+++ b/modules/video_output/opengl/vout_helper.c
@@ -1220,6 +1220,9 @@ int vout_display_opengl_Prepare(vout_display_opengl_t *vgl,
                 if (ret != VLC_SUCCESS)
                     continue;
             }
+            /* Use the visible pitch of the region */
+            r->p_picture->p[0].i_visible_pitch = r->fmt.i_visible_width
+                                               * r->p_picture->p[0].i_pixel_pitch;
             ret = tc->pf_update(tc, &glr->texture, &glr->width, &glr->height,
                                 r->p_picture, &pixels_offset);
         }