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st/mesa: Make the frontbuffer visible on st_flush(PIPE_FLUSH_FRAME).

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So far the frontbuffer was only being flushed on st_glFlush and
st_glFinish, however, a co-state tracker may need to make sure that
any frontbuffer changes are already on its way to the actual front.

The dri2 state tracker will need this for event-driven GL applications
to resize properly (It could also be done calling "dri_flush_frontbuffer",
but that way we would flush unnecessarily in the double-buffered case).

Additionally this patch avoids flushing the mesa rendering cache if
PIPE_FLUSH_RENDER_CACHE wasn't specified.
This commit is contained in:
Francisco Jerez 2010-02-16 17:21:10 +01:00
parent 7ccbeb41ac
commit f455ca6490
1 changed files with 6 additions and 9 deletions
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15
src/mesa/state_tracker/st_cb_flush.c
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@ -91,7 +91,8 @@ display_front_buffer(struct st_context *st)
void st_flush( struct st_context *st, uint pipeFlushFlags, void st_flush( struct st_context *st, uint pipeFlushFlags,
struct pipe_fence_handle **fence ) struct pipe_fence_handle **fence )
{ {
FLUSH_CURRENT(st->ctx, 0); if (pipeFlushFlags & PIPE_FLUSH_RENDER_CACHE)
FLUSH_CURRENT(st->ctx, 0);
/* Release any vertex buffers that might potentially be accessed in /* Release any vertex buffers that might potentially be accessed in
* successive frames: * successive frames:
@ -102,6 +103,10 @@ void st_flush( struct st_context *st, uint pipeFlushFlags,
util_gen_mipmap_flush(st->gen_mipmap); util_gen_mipmap_flush(st->gen_mipmap);
st->pipe->flush( st->pipe, pipeFlushFlags, fence ); st->pipe->flush( st->pipe, pipeFlushFlags, fence );
if ((pipeFlushFlags & PIPE_FLUSH_FRAME) &&
is_front_buffer_dirty(st))
display_front_buffer(st);
} }
@ -135,10 +140,6 @@ static void st_glFlush(GLcontext *ctx)
* problems that need to be fixed elsewhere. * problems that need to be fixed elsewhere.
*/ */
st_flush(st, PIPE_FLUSH_RENDER_CACHE | PIPE_FLUSH_FRAME, NULL); st_flush(st, PIPE_FLUSH_RENDER_CACHE | PIPE_FLUSH_FRAME, NULL);
if (is_front_buffer_dirty(st)) {
display_front_buffer(st);
}
} }
@ -150,10 +151,6 @@ static void st_glFinish(GLcontext *ctx)
struct st_context *st = ctx->st; struct st_context *st = ctx->st;
st_finish(st); st_finish(st);
if (is_front_buffer_dirty(st)) {
display_front_buffer(st);
}
} }