Revert "picking: Fix tracking of pick buffer validity"

This reverts commit d7e86e2696.

This was a half baked patch that was pushed a bit early since it broke
test-texture-pick-with-alpha + the commit message refers to a change on
the wip/paint-box branch that hasn't happened yet.
This commit is contained in:
Robert Bragg
2010-09-23 11:35:42 +01:00
parent d7e86e2696
commit b2a56c9cda
4 changed files with 25 additions and 59 deletions

View File

@@ -274,8 +274,12 @@ _clutter_do_redraw (ClutterStage *stage)
ctx = _clutter_context_get_default ();
_clutter_stage_set_pick_buffer_valid (stage, FALSE);
_clutter_stage_unset_pick_counter (stage);
/* We have an optimization to avoid pick renders while scene is static.
* This is implied by seeing multiple picks per frame so we have to
* reset a pick counter each frame and also invalidate any current pick
* buffer. */
ctx->picks_per_frame = 0;
ctx->have_complete_pick_buffer = FALSE;
/* Before we can paint, we have to be sure we have the latest layout */
_clutter_stage_maybe_relayout (CLUTTER_ACTOR (stage));
@@ -597,7 +601,7 @@ _clutter_do_pick (ClutterStage *stage,
/* It's possible that we currently have a static scene and have renderered a
* full, unclipped pick buffer. If so we can simply continue to read from
* this cached buffer until the scene next changes. */
if (_clutter_stage_get_pick_buffer_valid (stage))
if (context->have_complete_pick_buffer)
{
CLUTTER_TIMER_START (_clutter_uprof_context, pick_read);
cogl_read_pixels (x, y, 1, 1,
@@ -624,7 +628,7 @@ _clutter_do_pick (ClutterStage *stage,
goto result;
}
_clutter_stage_increment_pick_counter (stage);
context->picks_per_frame++;
_clutter_backend_ensure_context (context->backend, stage);
@@ -634,7 +638,7 @@ _clutter_do_pick (ClutterStage *stage,
/* If we are seeing multiple picks per frame that means the scene is static
* so we promote to doing a non-scissored pick render so that all subsequent
* picks for the same static scene won't require additional renders */
if (_clutter_stage_get_pick_counter (stage) < 2)
if (context->picks_per_frame < 2)
{
if (G_LIKELY (!(clutter_pick_debug_flags &
CLUTTER_DEBUG_DUMP_PICK_BUFFERS)))
@@ -676,7 +680,7 @@ _clutter_do_pick (ClutterStage *stage,
cogl_clip_pop ();
}
else
_clutter_stage_set_pick_buffer_valid (stage, TRUE);
context->have_complete_pick_buffer = TRUE;
/* Make sure Cogl flushes any batched geometry to the GPU driver */
cogl_flush ();