Isn't this true for any-non-alpha-having format? I.e. _BaseFormat != GL_RGBA && _BaseFormat != GL_ALPHA && _BaseFormat != GL_LUMINANCE_ALPHA && _BaseFormat != GL_INTENSITY? (Not sure about that last one tbh.)
On Thu, Jun 23, 2016 at 10:07 PM, Brian Paul <[email protected]> wrote: > This indicates the alpha channel of the surface should always be one. > Drivers can use this to adjust blending terms when needed. > --- > src/mesa/state_tracker/st_cb_fbo.c | 3 +++ > 1 file changed, 3 insertions(+) > > diff --git a/src/mesa/state_tracker/st_cb_fbo.c > b/src/mesa/state_tracker/st_cb_fbo.c > index 9801b1f..012d7d7 100644 > --- a/src/mesa/state_tracker/st_cb_fbo.c > +++ b/src/mesa/state_tracker/st_cb_fbo.c > @@ -216,6 +216,8 @@ st_renderbuffer_alloc_storage(struct gl_context * ctx, > return FALSE; > > u_surface_default_template(&surf_tmpl, strb->texture); > + surf_tmpl.alpha_one = (strb->Base._BaseFormat == GL_RGB); > + > strb->surface = pipe->create_surface(pipe, > strb->texture, > &surf_tmpl); > @@ -463,6 +465,7 @@ st_update_renderbuffer_surface(struct st_context *st, > /* create a new pipe_surface */ > struct pipe_surface surf_tmpl; > memset(&surf_tmpl, 0, sizeof(surf_tmpl)); > + surf_tmpl.alpha_one = (strb->Base._BaseFormat == GL_RGB); > surf_tmpl.format = format; > surf_tmpl.u.tex.level = level; > surf_tmpl.u.tex.first_layer = first_layer; > -- > 1.9.1 > > _______________________________________________ > mesa-dev mailing list > [email protected] > https://lists.freedesktop.org/mailman/listinfo/mesa-dev _______________________________________________ mesa-dev mailing list [email protected] https://lists.freedesktop.org/mailman/listinfo/mesa-dev
