diff options
Diffstat (limited to 'src/mesa/state_tracker/st_framebuffer.c')
| -rw-r--r-- | src/mesa/state_tracker/st_framebuffer.c | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/src/mesa/state_tracker/st_framebuffer.c b/src/mesa/state_tracker/st_framebuffer.c index 07ccaa6aab..639373fff7 100644 --- a/src/mesa/state_tracker/st_framebuffer.c +++ b/src/mesa/state_tracker/st_framebuffer.c @@ -331,6 +331,12 @@ st_swapbuffers(struct st_framebuffer *stfb, st_renderbuffer(fb->Attachment[BUFFER_FRONT_LEFT].Renderbuffer); *front_left = strb->surface; } + /* mark back buffer contents as undefined */ + { + struct st_renderbuffer *back = + st_renderbuffer(fb->Attachment[BUFFER_BACK_LEFT].Renderbuffer); + back->defined = GL_FALSE; + } } else { /* no front buffer, display the back buffer */ @@ -354,6 +360,12 @@ st_swapbuffers(struct st_framebuffer *stfb, st_renderbuffer(fb->Attachment[BUFFER_FRONT_RIGHT].Renderbuffer); *front_right = strb->surface; } + /* mark back buffer contents as undefined */ + { + struct st_renderbuffer *back = + st_renderbuffer(fb->Attachment[BUFFER_BACK_RIGHT].Renderbuffer); + back->defined = GL_FALSE; + } } else { /* no front right buffer, display back right buffer (if exists) */ |