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st: Fix box-shadow drawing with prerendered_texture

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The use of box-shadow on a StWidget that has a background-gradient was
not been rendered correctly, the shadow borders was calculated inside
the st_theme_node_prerender_shadow function and in the case that we've a
prerendered_texture the max_borders was not calculated and are 0.

This patch creates a new static function to compute shadow maximum
borders copying the code from st_theme_node_prerender_shadow, and call
this new method in the case that we've a prerendered_texture.

https://gitlab.gnome.org/GNOME/gnome-shell/issues/1186
This commit is contained in:
Daniel García Moreno 2019-09-18 16:50:49 +02:00 committed by Georges Basile Stavracas Neto
parent 5c3f4f5f8b
commit cf00231aa8
1 changed files with 36 additions and 37 deletions
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73
src/st/st-theme-node-drawing.c
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@ -1472,6 +1472,7 @@ st_theme_node_invalidate_resources_for_file (StThemeNode *node,
return changed;
}
static void st_theme_node_compute_maximum_borders (StThemeNodePaintState *state);
static void st_theme_node_prerender_shadow (StThemeNodePaintState *state);
static void
@ -1575,6 +1576,8 @@ st_theme_node_render_resources (StThemeNodePaintState *state,
if (box_shadow_spec && !has_inset_box_shadow)
{
st_theme_node_compute_maximum_borders (state);
if (st_theme_node_load_border_image (node, resource_scale))
state->box_shadow_pipeline = _st_create_shadow_pipeline (box_shadow_spec,
node->border_slices_texture,
@ -2282,9 +2285,6 @@ st_theme_node_prerender_shadow (StThemeNodePaintState *state)
{
StThemeNode *node = state->node;
CoglContext *ctx;
guint border_radius[4];
int max_borders[4];
int center_radius, corner_id;
int fb_width, fb_height;
CoglTexture *buffer;
CoglFramebuffer *offscreen = NULL;
@ -2292,40 +2292,6 @@ st_theme_node_prerender_shadow (StThemeNodePaintState *state)
ctx = clutter_backend_get_cogl_context (clutter_get_default_backend ());
/* Get infos from the node */
if (state->alloc_width < node->box_shadow_min_width ||
state->alloc_height < node->box_shadow_min_height)
st_theme_node_reduce_border_radius (node, state->alloc_width, state->alloc_height, border_radius);
else
for (corner_id = 0; corner_id < 4; corner_id++)
border_radius[corner_id] = node->border_radius[corner_id];
/* Compute maximum borders sizes */
max_borders[ST_SIDE_TOP] = MAX (node->border_radius[ST_CORNER_TOPLEFT],
node->border_radius[ST_CORNER_TOPRIGHT]);
max_borders[ST_SIDE_BOTTOM] = MAX (node->border_radius[ST_CORNER_BOTTOMLEFT],
node->border_radius[ST_CORNER_BOTTOMRIGHT]);
max_borders[ST_SIDE_LEFT] = MAX (node->border_radius[ST_CORNER_TOPLEFT],
node->border_radius[ST_CORNER_BOTTOMLEFT]);
max_borders[ST_SIDE_RIGHT] = MAX (node->border_radius[ST_CORNER_TOPRIGHT],
node->border_radius[ST_CORNER_BOTTOMRIGHT]);
center_radius = (node->box_shadow->blur > 0) ? (2 * node->box_shadow->blur + 1) : 1;
node->box_shadow_min_width = max_borders[ST_SIDE_LEFT] + max_borders[ST_SIDE_RIGHT] + center_radius;
node->box_shadow_min_height = max_borders[ST_SIDE_TOP] + max_borders[ST_SIDE_BOTTOM] + center_radius;
if (state->alloc_width < node->box_shadow_min_width ||
state->alloc_height < node->box_shadow_min_height)
{
state->box_shadow_width = state->alloc_width;
state->box_shadow_height = state->alloc_height;
}
else
{
state->box_shadow_width = node->box_shadow_min_width;
state->box_shadow_height = node->box_shadow_min_height;
}
/* Render offscreen */
fb_width = ceilf (state->box_shadow_width * state->resource_scale);
fb_height = ceilf (state->box_shadow_height * state->resource_scale);
@ -2357,6 +2323,39 @@ st_theme_node_prerender_shadow (StThemeNodePaintState *state)
cogl_clear_object (&buffer);
}
static void
st_theme_node_compute_maximum_borders (StThemeNodePaintState *state)
{
int max_borders[4], center_radius;
StThemeNode * node = state->node;
/* Compute maximum borders sizes */
max_borders[ST_SIDE_TOP] = MAX (node->border_radius[ST_CORNER_TOPLEFT],
node->border_radius[ST_CORNER_TOPRIGHT]);
max_borders[ST_SIDE_BOTTOM] = MAX (node->border_radius[ST_CORNER_BOTTOMLEFT],
node->border_radius[ST_CORNER_BOTTOMRIGHT]);
max_borders[ST_SIDE_LEFT] = MAX (node->border_radius[ST_CORNER_TOPLEFT],
node->border_radius[ST_CORNER_BOTTOMLEFT]);
max_borders[ST_SIDE_RIGHT] = MAX (node->border_radius[ST_CORNER_TOPRIGHT],
node->border_radius[ST_CORNER_BOTTOMRIGHT]);
center_radius = (node->box_shadow->blur > 0) ? (2 * node->box_shadow->blur + 1) : 1;
node->box_shadow_min_width = max_borders[ST_SIDE_LEFT] + max_borders[ST_SIDE_RIGHT] + center_radius;
node->box_shadow_min_height = max_borders[ST_SIDE_TOP] + max_borders[ST_SIDE_BOTTOM] + center_radius;
if (state->alloc_width < node->box_shadow_min_width ||
state->alloc_height < node->box_shadow_min_height)
{
state->box_shadow_width = state->alloc_width;
state->box_shadow_height = state->alloc_height;
}
else
{
state->box_shadow_width = node->box_shadow_min_width;
state->box_shadow_height = node->box_shadow_min_height;
}
}
static void
st_theme_node_paint_sliced_border_image (StThemeNode *node,
CoglFramebuffer *framebuffer,