isa/mutter
1
0
Fork 0
mirror of https://github.com/brl/mutter.git synced 2025-06-13 16:59:30 +00:00
Code Issues Packages Projects Releases Wiki Activity

Improves the unit test to verify more awkward scaling and some corresponding fixes

Browse Source 
This simplifies the mucking about with the model-view matrix that was previously
done which improves its efficiency when scaling is necessary.

Notably: There should now be no performance advantage to using
ClutterCloneTexture as a special case clone actor since this method is just as
efficient.

The unit test was renamed to test-actor-clone.
This commit is contained in:
Robert Bragg
2009-01-19 19:11:00 +00:00
parent df7480090d
commit 8b39bfec7f
3 changed files with 8 additions and 38 deletions
Download Patch File Download Diff File Expand all files Collapse all files

39
clutter/clutter-actor-clone.c
View File

@ -99,10 +99,6 @@ clutter_actor_clone_paint (ClutterActor *self)
ClutterGeometry clone_source_geom;
float x_scale;
float y_scale;
ClutterActor *stage;
ClutterPerspective perspective;
guint stage_width;
guint stage_height;
CLUTTER_NOTE (PAINT,
"painting clone actor '%s'",
@ -115,40 +111,11 @@ clutter_actor_clone_paint (ClutterActor *self)
/* We need to scale what the clone-source actor paints to fill our own
* allocation... */
x_scale = geom.width / clone_source_geom.width;
y_scale = geom.height / clone_source_geom.height;
/* Once we have calculated the scale factors it's a case of pushing
* the scale factors to the bottom of the current model view stack...
*/
if (x_scale != 1.0 || y_scale != 1.0)
{
/*
* FIXME - this is quite expensive, it would be good it clutter kept
* the model view matrix changes made by cogl_setup_viewport seperate
* from those made while painting actors so we could simply replace the
* later by multiplying it with the scale avoiding the call to
* _clutter_actor_apply_modelview_transform_recursive.
*/
x_scale = (float)geom.width / clone_source_geom.width;
y_scale = (float)geom.height / clone_source_geom.height;
stage = clutter_actor_get_stage (self);
if (!stage)
return;
clutter_actor_get_size (stage, &stage_width, &stage_height);
clutter_stage_get_perspectivex (CLUTTER_STAGE (stage), &perspective);
cogl_setup_viewport (stage_width, stage_height,
perspective.fovy,
perspective.aspect,
perspective.z_near,
perspective.z_far);
cogl_scale (COGL_FIXED_FROM_FLOAT (x_scale),
COGL_FIXED_FROM_FLOAT (y_scale));
_clutter_actor_apply_modelview_transform_recursive (self, NULL);
}
cogl_scale (COGL_FIXED_FROM_FLOAT (x_scale), COGL_FIXED_FROM_FLOAT (y_scale));
/* The final bits of magic:
* - We need to make sure that when the clone-source actor's paint method