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Remove the workaround for multi-texturing with old intel drivers

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The 2009 Q2 release of the drivers includes the relevent bug fix.

https://bugzilla.gnome.org/show_bug.cgi?id=613121
This commit is contained in:
Robert Bragg 2009-06-29 15:56:52 +01:00 committed by Tomas Frydrych
parent d537dd93d5
commit 452025e984
1 changed files with 0 additions and 32 deletions
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32
src/compositor/mutter-shaped-texture.c
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@ -299,9 +299,6 @@ mutter_shaped_texture_paint (ClutterActor *actor)
guint tex_width, tex_height;
ClutterActorBox alloc;
CoglHandle material;
#if 1 /* please see comment below about workaround */
guint depth;
#endif
if (priv->clip_region && gdk_region_empty (priv->clip_region))
return;
@ -363,35 +360,6 @@ mutter_shaped_texture_paint (ClutterActor *actor)
}
material = priv->material;
#if 1
/* This was added as a workaround. It seems that with the intel
* drivers when multi-texturing using an RGB TFP texture, the
* texture is actually setup internally as an RGBA texture, where
* the alpha channel is mostly 0.0 so you only see a shimmer of the
* window. This workaround forcibly defines the alpha channel as
* 1.0. Maybe there is some clutter/cogl state that is interacting
* with this that is being overlooked, but for now this seems to
* work. */
g_object_get (stex, "pixmap-depth", &depth, NULL);
if (depth == 24)
{
if (priv->material_workaround == COGL_INVALID_HANDLE)
{
material = priv->material_workaround = cogl_material_new ();
cogl_material_set_layer_combine (material, 0,
"RGB = MODULATE (TEXTURE, PREVIOUS)"
"A = REPLACE (PREVIOUS)",
NULL);
cogl_material_set_layer_combine (material, 1,
"RGBA = MODULATE (PREVIOUS, TEXTURE[A])",
NULL);
}
material = priv->material_workaround;
}
#endif
cogl_material_set_layer (material, 1, priv->mask_texture);
}