gallium: Add context profile support to st_api.

Add struct st_context_attribs to describe context profiles and
attributes.  Modify st_api::create_context to take the new struct
instead of an st_visual.

st_context_attribs can be used to support GLX_ARB_create_context_profile
and GLX_EXT_create_context_es2_profile in the future.  But the
motivation for doing it now is to be able to replace ST_API_OPENGL_ES1
and ST_API_OPENGL_ES2 by profiles.

Having 3 st_api's to provide OpenGL, OpenGL ES 1.1, and OpenGL ES 2.0 is
not a sane abstraction, since all of them share glapi for current
context/dispatch management.

1 files changed, 6 insertions, 1 deletions

diff --git a/src/gallium/state_trackers/glx/xlib/xm_api.c b/src/gallium/state_trackers/glx/xlib/xm_api.c
index eb4ce74266..36d63c30d6 100644
--- a/src/gallium/state_trackers/glx/xlib/xm_api.c
+++ b/src/gallium/state_trackers/glx/xlib/xm_api.c
@@ -849,6 +849,7 @@ PUBLIC
 XMesaContext XMesaCreateContext( XMesaVisual v, XMesaContext share_list )
 {
    XMesaDisplay xmdpy = xmesa_init_display(v->display);
+   struct st_context_attribs attribs;
    XMesaContext c;
 
    if (!xmdpy)
@@ -863,8 +864,12 @@ XMesaContext XMesaCreateContext( XMesaVisual v, XMesaContext share_list )
    c->xm_buffer = NULL;   /* set later by XMesaMakeCurrent */
    c->xm_read_buffer = NULL;
 
+   memset(&attribs, 0, sizeof(attribs));
+   attribs.profile = ST_PROFILE_DEFAULT;
+   attribs.visual = v->stvis;
+
    c->st = stapi->create_context(stapi, xmdpy->smapi,
-         &v->stvis, (share_list) ? share_list->st : NULL);
+         &attribs, (share_list) ? share_list->st : NULL);
    if (c->st == NULL)
       goto fail;