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st: Init framebuffer early to fix gnome-shell crash on NVIDIA drivers

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Checking offscreen for COGL_INVALID_HANDLE is not sufficient,
as cogl_offscreen_new_with_texture doesn't initialize framebuffer
objects but lets Cogl solve this the lazy way.
cogl_offscreen_new_with_texture will never return COGL_INVALID_HANDLE
anyways.

https://bugzilla.gnome.org/show_bug.cgi?id=764898
This commit is contained in:
Martin Szulecki 2016-05-17 15:00:04 +02:00
parent bd92331780
commit 5226d8b086
2 changed files with 32 additions and 11 deletions
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18
src/st/st-theme-node-drawing.c
View File

@ -2224,6 +2224,7 @@ st_theme_node_prerender_shadow (StThemeNodePaintState *state)
int max_borders[4];
int center_radius, corner_id;
CoglHandle buffer, offscreen = COGL_INVALID_HANDLE;
CoglError *error = NULL;
/* Get infos from the node */
if (state->alloc_width < node->box_shadow_min_width ||
@ -2264,10 +2265,12 @@ st_theme_node_prerender_shadow (StThemeNodePaintState *state)
state->box_shadow_height,
COGL_TEXTURE_NO_SLICING,
COGL_PIXEL_FORMAT_ANY);
if (buffer != COGL_INVALID_HANDLE)
offscreen = cogl_offscreen_new_with_texture (buffer);
if (buffer == NULL)
return;
if (offscreen != COGL_INVALID_HANDLE)
offscreen = cogl_offscreen_new_with_texture (buffer);
if (cogl_framebuffer_allocate (COGL_FRAMEBUFFER (offscreen), &error))
{
ClutterActorBox box = { 0, 0, state->box_shadow_width, state->box_shadow_height};
@ -2277,14 +2280,17 @@ st_theme_node_prerender_shadow (StThemeNodePaintState *state)
cogl_framebuffer_clear4f (offscreen, COGL_BUFFER_BIT_COLOR, 0, 0, 0, 0);
st_theme_node_paint_borders (state, offscreen, &box, 0xFF);
cogl_handle_unref (offscreen);
state->box_shadow_pipeline = _st_create_shadow_pipeline (st_theme_node_get_box_shadow (node),
buffer);
}
else
{
cogl_error_free (error);
}
if (buffer != COGL_INVALID_HANDLE)
cogl_handle_unref (buffer);
cogl_handle_unref (offscreen);
cogl_handle_unref (buffer);
}
static void

25
src/st/st-theme-node-transition.c
View File

@ -241,6 +241,7 @@ setup_framebuffers (StThemeNodeTransition *transition,
{
StThemeNodeTransitionPrivate *priv = transition->priv;
guint width, height;
CoglError *catch_error = NULL;
/* template material to avoid unnecessary shader compilation */
static CoglHandle material_template = COGL_INVALID_HANDLE;
@ -263,19 +264,33 @@ setup_framebuffers (StThemeNodeTransition *transition,
COGL_TEXTURE_NO_SLICING,
COGL_PIXEL_FORMAT_ANY);
g_return_val_if_fail (priv->old_texture != COGL_INVALID_HANDLE, FALSE);
g_return_val_if_fail (priv->new_texture != COGL_INVALID_HANDLE, FALSE);
if (priv->old_texture == COGL_INVALID_HANDLE)
return FALSE;
if (priv->new_texture == COGL_INVALID_HANDLE)
return FALSE;
if (priv->old_offscreen)
cogl_handle_unref (priv->old_offscreen);
priv->old_offscreen = cogl_offscreen_new_with_texture (priv->old_texture);
if (!cogl_framebuffer_allocate (COGL_FRAMEBUFFER (priv->old_offscreen), &catch_error))
{
cogl_object_unref (priv->old_offscreen);
cogl_error_free (catch_error);
priv->old_offscreen = COGL_INVALID_HANDLE;
return FALSE;
}
if (priv->new_offscreen)
cogl_handle_unref (priv->new_offscreen);
priv->new_offscreen = cogl_offscreen_new_with_texture (priv->new_texture);
g_return_val_if_fail (priv->old_offscreen != COGL_INVALID_HANDLE, FALSE);
g_return_val_if_fail (priv->new_offscreen != COGL_INVALID_HANDLE, FALSE);
if (!cogl_framebuffer_allocate (COGL_FRAMEBUFFER (priv->new_offscreen), &catch_error))
{
cogl_object_unref (priv->new_offscreen);
cogl_error_free (catch_error);
priv->new_offscreen = COGL_INVALID_HANDLE;
return FALSE;
}
if (priv->material == NULL)
{