static void
clutter_reflect_texture_paint (ClutterActor *self)
{
ClutterReflectTexturePrivate *priv;
ClutterActor *parent_texture;
gint x1, y1, x2, y2;
GLenum target_type;
priv = CLUTTER_REFLECT_TEXTURE (self)->priv;
/* no need to paint stuff if we don't have a texture to reflect */
if (!clutter_clone_texture_get_parent_texture(CLUTTER_CLONE_TEXTURE(self)))
return;
/* parent texture may have been hidden, there for need to make sure its
* realised with resources available.
*/
parent_texture = CLUTTER_ACTOR (clutter_clone_texture_get_parent_texture(CLUTTER_CLONE_TEXTURE(self)));
if (!CLUTTER_ACTOR_IS_REALIZED (parent_texture))
clutter_actor_realize (parent_texture);
/* FIXME: figure out nicer way of getting at this info...
*/
if (clutter_feature_available (CLUTTER_FEATURE_TEXTURE_RECTANGLE) &&
clutter_texture_is_tiled (CLUTTER_TEXTURE (parent_texture)) == FALSE)
{
target_type = CGL_TEXTURE_RECTANGLE_ARB;
cogl_enable (CGL_ENABLE_TEXTURE_RECT | CGL_ENABLE_BLEND);
}
else
{
target_type = CGL_TEXTURE_2D;
cogl_enable (CGL_ENABLE_TEXTURE_2D|CGL_ENABLE_BLEND);
}
cogl_push_matrix ();
glBlendFunc (GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
glColor4ub (255, 255, 255, clutter_actor_get_opacity (self));
clutter_actor_get_coords (self, &x1, &y1, &x2, &y2);
/* Parent paint translated us into position */
reflect_texture_render_to_gl_quad (CLUTTER_REFLECT_TEXTURE (self),
0, 0, x2 - x1, y2 - y1);
cogl_pop_matrix ();
}
static void
clutter_reflect_texture_get_property (GObject *object,
guint prop_id,
GValue *value,
GParamSpec *pspec)
{
ClutterReflectTexture *ctexture = CLUTTER_REFLECT_TEXTURE (object);
ClutterReflectTexturePrivate *priv = ctexture->priv;
switch (prop_id)
{
case PROP_REFLECTION_HEIGHT:
g_value_set_int (value, priv->reflection_height);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
static void
clutter_reflect_texture_paint (ClutterActor *actor)
{
ClutterReflectTexturePrivate *priv;
ClutterReflectTexture *texture;
ClutterClone *clone;
ClutterTexture *parent;
guint width, height;
gfloat fwidth, fheight;
gint r_height;
gint opacity;
gint bottom;
CoglHandle cogl_texture;
CoglTextureVertex tvert[4];
CoglFixed rty;
texture = CLUTTER_REFLECT_TEXTURE (actor);
clone = CLUTTER_CLONE (actor);
parent = (ClutterTexture*) clutter_clone_get_source (clone);
if (!parent)
return;
if (!CLUTTER_ACTOR_IS_REALIZED (parent))
clutter_actor_realize (CLUTTER_ACTOR (parent));
cogl_texture = clutter_texture_get_cogl_texture (parent);
if (cogl_texture == COGL_INVALID_HANDLE)
return;
priv = texture->priv;
clutter_actor_get_size (CLUTTER_ACTOR(parent), &fwidth, &fheight);
width = fwidth;
height = fheight;
if (!height)
// probably won't happen, but just in case, to avoid divide by zero.
return;
r_height = priv->reflection_height;
bottom = priv->reflect_bottom;
opacity = clutter_actor_get_opacity(actor);
if (r_height < 0 || r_height > height)
r_height = height;
#define FX(x) COGL_FIXED_FROM_INT(x)
rty = COGL_FIXED_FAST_DIV(FX(bottom ? height-r_height : r_height),FX(height));
/* clockise vertices and tex coords and colors! */
tvert[0].x = tvert[0].y = tvert[0].z = 0;
tvert[0].tx = 0; tvert[0].ty = bottom ? COGL_FIXED_1 : rty;
tvert[0].color.red = tvert[0].color.green = tvert[0].color.blue = 0xff;
tvert[0].color.alpha = bottom ? opacity : 0;
tvert[1].x = FX(width); tvert[1].y = tvert[1].z = 0;
tvert[1].tx = COGL_FIXED_1; tvert[1].ty = bottom ? COGL_FIXED_1 : rty;
tvert[1].color.red = tvert[1].color.green = tvert[1].color.blue = 0xff;
tvert[1].color.alpha = bottom ? opacity : 0;
tvert[2].x = FX(width); tvert[2].y = FX(r_height); tvert[2].z = 0;
tvert[2].tx = COGL_FIXED_1; tvert[2].ty = bottom ? rty : 0;
tvert[2].color.red = tvert[2].color.green = tvert[2].color.blue = 0xff;
tvert[2].color.alpha = bottom ? 0 : opacity;
tvert[3].x = 0; tvert[3].y = FX(r_height); tvert[3].z = 0;
tvert[3].tx = 0; tvert[3].ty = bottom ? rty : 0;
tvert[3].color.red = tvert[3].color.green = tvert[3].color.blue = 0xff;
tvert[3].color.alpha = bottom ? 0 : opacity;
cogl_push_matrix ();
cogl_set_source_texture(cogl_texture);
/* FIXME: this does not work as expected */
/* cogl_polygon(tvert, 4, TRUE); */
cogl_pop_matrix ();
}