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, 10 insertions, 1 deletions

diff --git a/src/gallium/state_trackers/vega/vg_manager.c b/src/gallium/state_trackers/vega/vg_manager.c
index c2aa98b231..e7996741d1 100644
--- a/src/gallium/state_trackers/vega/vg_manager.c
+++ b/src/gallium/state_trackers/vega/vg_manager.c
@@ -341,13 +341,20 @@ vg_context_destroy(struct st_context_iface *stctxi)
 
 static struct st_context_iface *
 vg_api_create_context(struct st_api *stapi, struct st_manager *smapi,
-                      const struct st_visual *visual,
+                      const struct st_context_attribs *attribs,
                       struct st_context_iface *shared_stctxi)
 {
    struct vg_context *shared_ctx = (struct vg_context *) shared_stctxi;
    struct vg_context *ctx;
    struct pipe_context *pipe;
 
+   if (!(stapi->profile_mask & (1 << attribs->profile)))
+      return NULL;
+
+   /* only 1.0 is supported */
+   if (attribs->major != 1 || attribs->minor > 0)
+      return NULL;
+
    pipe = smapi->screen->context_create(smapi->screen, NULL);
    if (!pipe)
       return NULL;
@@ -528,6 +535,8 @@ vg_api_destroy(struct st_api *stapi)
 }
 
 static const struct st_api vg_api = {
+   ST_API_OPENVG,
+   ST_PROFILE_DEFAULT_MASK,
    vg_api_destroy,
    vg_api_get_proc_address,
    vg_api_create_context,