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Initialize color masks lazily

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When we don't use a window system drawable, we can't query the color
masks at context initialization time.  Do it lazily so we're sure to have
a current context with a valid framebuffer.
This commit is contained in:
Kristian Høgsberg 2010-09-27 13:25:50 -04:00 committed by Robert Bragg
parent f456116c18
commit a7cf98ebfc
1 changed files with 20 additions and 15 deletions
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35
clutter/clutter-main.c
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@ -343,6 +343,26 @@ _clutter_id_to_color (guint id, ClutterColor *col)
ctx = _clutter_context_get_default ();
if (ctx->fb_g_mask == 0)
{
/* Figure out framebuffer masks used for pick */
cogl_get_bitmasks (&ctx->fb_r_mask,
&ctx->fb_g_mask,
&ctx->fb_b_mask, NULL);
ctx->fb_r_mask_used = ctx->fb_r_mask;
ctx->fb_g_mask_used = ctx->fb_g_mask;
ctx->fb_b_mask_used = ctx->fb_b_mask;
/* XXX - describe what "fuzzy picking" is */
if (clutter_use_fuzzy_picking)
{
ctx->fb_r_mask_used--;
ctx->fb_g_mask_used--;
ctx->fb_b_mask_used--;
}
}
/* compute the numbers we'll store in the components */
red = (id >> (ctx->fb_g_mask_used+ctx->fb_b_mask_used))
& (0xff >> (8-ctx->fb_r_mask_used));
@ -1606,21 +1626,6 @@ clutter_init_real (GError **error)
clutter_text_direction = clutter_get_text_direction ();
/* Figure out framebuffer masks used for pick */
cogl_get_bitmasks (&ctx->fb_r_mask, &ctx->fb_g_mask, &ctx->fb_b_mask, NULL);
ctx->fb_r_mask_used = ctx->fb_r_mask;
ctx->fb_g_mask_used = ctx->fb_g_mask;
ctx->fb_b_mask_used = ctx->fb_b_mask;
/* XXX - describe what "fuzzy picking" is */
if (clutter_use_fuzzy_picking)
{
ctx->fb_r_mask_used--;
ctx->fb_g_mask_used--;
ctx->fb_b_mask_used--;
}
/* Initiate event collection */
_clutter_backend_init_events (ctx->backend);