static boolean
st_api_make_current(struct st_api *stapi, struct st_context_iface *stctxi,
struct st_framebuffer_iface *stdrawi,
struct st_framebuffer_iface *streadi)
{
struct st_context *st = (struct st_context *) stctxi;
struct st_framebuffer *stdraw, *stread;
boolean ret;
_glapi_check_multithread();
if (st) {
/* reuse or create the draw fb */
stdraw = st_framebuffer_reuse_or_create(st->ctx->WinSysDrawBuffer,
stdrawi);
if (streadi != stdrawi) {
/* do the same for the read fb */
stread = st_framebuffer_reuse_or_create(st->ctx->WinSysReadBuffer,
streadi);
}
else {
stread = NULL;
/* reuse the draw fb for the read fb */
if (stdraw)
st_framebuffer_reference(&stread, stdraw);
}
if (stdraw && stread) {
st_framebuffer_validate(stdraw, st);
if (stread != stdraw)
st_framebuffer_validate(stread, st);
ret = _mesa_make_current(st->ctx, &stdraw->Base, &stread->Base);
st->draw_stamp = stdraw->stamp - 1;
st->read_stamp = stread->stamp - 1;
st_context_validate(st, stdraw, stread);
}
else {
struct gl_framebuffer *incomplete = _mesa_get_incomplete_framebuffer();
ret = _mesa_make_current(st->ctx, incomplete, incomplete);
}
st_framebuffer_reference(&stdraw, NULL);
st_framebuffer_reference(&stread, NULL);
}
else {
ret = _mesa_make_current(NULL, NULL, NULL);
}
return ret;
}
/**
* Re-validate the framebuffers.
*/
void
st_manager_validate_framebuffers(struct st_context *st)
{
struct st_framebuffer *stdraw = st_ws_framebuffer(st->ctx->DrawBuffer);
struct st_framebuffer *stread = st_ws_framebuffer(st->ctx->ReadBuffer);
if (stdraw)
st_framebuffer_validate(stdraw, st);
if (stread && stread != stdraw)
st_framebuffer_validate(stread, st);
st_context_validate(st, stdraw, stread);
}
