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clutter: Introduce geometric picking

Browse Source 
Currently, Clutter does picking by drawing with Cogl and reading
the pixel that's beneath the given point. Since Cogl has a journal
that records drawing operations, and has optimizations to read a
single pixel from a list of rectangle, it would be expected that
we would hit this fast path and not flush the journal while picking.

However, that's not the case: dithering, clipping with scissors, etc,
can all flush the journal, issuing commands to the GPU and making
picking slow. On NVidia-based systems, this glReadPixels() call is
extremely costly.

Introduce geometric picking, and avoid using the Cogl journal entirely.
Do this by introducing a stack of actors in ClutterStage. This stack
is cached, but for now, don't use the cache as much as possible.

The picking routines are still tied to painting.

When projecting the actor vertexes, do it manually and take the modelview
matrix of the framebuffer into account as well.

CPU usage on an Intel i7-7700, tested with two different GPUs/drivers:

  |         |     Intel | Nvidia |
  | ------: | --------: | -----: |
  | Moving the mouse:            |
  | Before  |       10% |    10% |
  | After   |        6% |     6% |
  | Moving a window:             |
  | Before  |       23% |    81% |
  | After   |       19% |    40% |

Closes: https://gitlab.gnome.org/GNOME/mutter/issues/154,
        https://gitlab.gnome.org/GNOME/mutter/issues/691

Helps significantly with: https://gitlab.gnome.org/GNOME/mutter/issues/283,
                          https://gitlab.gnome.org/GNOME/mutter/issues/590,
                          https://gitlab.gnome.org/GNOME/mutter/issues/700

v2: Fix code style issues
    Simplify quadrilateral checks
    Remove the 0.5f hack
    Differentiate axis-aligned rectangles

https://gitlab.gnome.org/GNOME/mutter/merge_requests/189
This commit is contained in:
Daniel van Vugt 2018-08-02 19:03:30 +08:00 committed by Georges Basile Stavracas Neto
parent 2e04d2c137
commit d841e0047f
16 changed files with 442 additions and 786 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
clutter/clutter/clutter-actor-private.h
View File

@ -297,8 +297,6 @@ const gchar * _clutter_actor_get_debug_name
void _clutter_actor_push_clone_paint (void);
void _clutter_actor_pop_clone_paint (void);
guint32 _clutter_actor_get_pick_id (ClutterActor *self);
void _clutter_actor_shader_pre_paint (ClutterActor *actor,
gboolean repeat);
void _clutter_actor_shader_post_paint (ClutterActor *actor);

235
clutter/clutter/clutter-actor.c
View File

@ -736,8 +736,6 @@ struct _ClutterActorPrivate
gchar *name; /* a non-unique name, used for debugging */
gint32 pick_id; /* per-stage unique id, used for picking */
/* a back-pointer to the Pango context that we can use
* to create pre-configured PangoLayout
*/
@ -1290,6 +1288,106 @@ clutter_actor_verify_map_state (ClutterActor *self)
#endif /* CLUTTER_ENABLE_DEBUG */
static gboolean
_clutter_actor_transform_local_box_to_stage (ClutterActor *self,
ClutterStage *stage,
const ClutterActorBox *box,
ClutterPoint vertices[4])
{
CoglFramebuffer *fb = cogl_get_draw_framebuffer ();
CoglMatrix stage_transform, inv_stage_transform;
CoglMatrix modelview, transform_to_stage;
int v;
clutter_actor_get_transform (CLUTTER_ACTOR (stage), &stage_transform);
if (!cogl_matrix_get_inverse (&stage_transform, &inv_stage_transform))
return FALSE;
cogl_framebuffer_get_modelview_matrix (fb, &modelview);
cogl_matrix_multiply (&transform_to_stage, &inv_stage_transform, &modelview);
vertices[0].x = box->x1;
vertices[0].y = box->y1;
vertices[1].x = box->x2;
vertices[1].y = box->y1;
vertices[2].x = box->x2;
vertices[2].y = box->y2;
vertices[3].x = box->x1;
vertices[3].y = box->y2;
for (v = 0; v < 4; v++)
{
float z = 0.f;
float w = 1.f;
cogl_matrix_transform_point (&transform_to_stage,
&vertices[v].x,
&vertices[v].y,
&z,
&w);
}
return TRUE;
}
/**
* clutter_actor_pick_box:
* @self: The #ClutterActor being "pick" painted.
* @box: A rectangle in the actor's own local coordinates.
*
* Logs (does a virtual paint of) a rectangle for picking. Note that @box is
* in the actor's own local coordinates, so is usually {0,0,width,height}
* to include the whole actor. That is unless the actor has a shaped input
* region in which case you may wish to log the (multiple) smaller rectangles
* that make up the input region.
*/
void
clutter_actor_pick_box (ClutterActor *self,
const ClutterActorBox *box)
{
ClutterStage *stage;
ClutterPoint vertices[4];
g_return_if_fail (CLUTTER_IS_ACTOR (self));
g_return_if_fail (box != NULL);
/* An empty box to a "pick" paint means to paint nothing at all. */
if (box->x1 >= box->x2 || box->y1 >= box->y2)
return;
stage = CLUTTER_STAGE (_clutter_actor_get_stage_internal (self));
if (_clutter_actor_transform_local_box_to_stage (self, stage, box, vertices))
_clutter_stage_log_pick (stage, vertices, self);
}
static gboolean
_clutter_actor_push_pick_clip (ClutterActor *self,
const ClutterActorBox *clip)
{
ClutterStage *stage;
ClutterPoint vertices[4];
stage = CLUTTER_STAGE (_clutter_actor_get_stage_internal (self));
if (!_clutter_actor_transform_local_box_to_stage (self, stage, clip, vertices))
return FALSE;
_clutter_stage_push_pick_clip (stage, vertices);
return TRUE;
}
static void
_clutter_actor_pop_pick_clip (ClutterActor *self)
{
ClutterActor *stage;
stage = _clutter_actor_get_stage_internal (self);
_clutter_stage_pop_pick_clip (CLUTTER_STAGE (stage));
}
static void
clutter_actor_set_mapped (ClutterActor *self,
gboolean mapped)
@ -1518,8 +1616,7 @@ clutter_actor_update_map_state (ClutterActor *self,
static void
clutter_actor_real_map (ClutterActor *self)
{
ClutterActorPrivate *priv = self->priv;
ClutterActor *stage, *iter;
ClutterActor *iter;
g_assert (!CLUTTER_ACTOR_IS_MAPPED (self));
@ -1530,13 +1627,6 @@ clutter_actor_real_map (ClutterActor *self)
self->priv->needs_paint_volume_update = TRUE;
stage = _clutter_actor_get_stage_internal (self);
priv->pick_id = _clutter_stage_acquire_pick_id (CLUTTER_STAGE (stage), self);
CLUTTER_NOTE (ACTOR, "Pick id '%d' for actor '%s'",
priv->pick_id,
_clutter_actor_get_debug_name (self));
clutter_actor_ensure_resource_scale (self);
/* notify on parent mapped before potentially mapping
@ -1641,11 +1731,6 @@ clutter_actor_real_unmap (ClutterActor *self)
stage = CLUTTER_STAGE (_clutter_actor_get_stage_internal (self));
if (stage != NULL)
_clutter_stage_release_pick_id (stage, priv->pick_id);
priv->pick_id = -1;
if (stage != NULL &&
clutter_stage_get_key_focus (stage) == self)
{
@ -2264,46 +2349,16 @@ static void
clutter_actor_real_pick (ClutterActor *self,
const ClutterColor *color)
{
CoglFramebuffer *framebuffer = cogl_get_draw_framebuffer ();
/* the default implementation is just to paint a rectangle
* with the same size of the actor using the passed color
*/
if (clutter_actor_should_pick_paint (self))
{
static CoglPipeline *default_pick_pipeline = NULL;
ClutterActorBox box = { 0, };
CoglPipeline *pick_pipeline;
float width, height;
ClutterActorBox box = {
.x1 = 0,
.y1 = 0,
.x2 = clutter_actor_get_width (self),
.y2 = clutter_actor_get_height (self),
};
if (G_UNLIKELY (default_pick_pipeline == NULL))
{
CoglContext *ctx =
clutter_backend_get_cogl_context (clutter_get_default_backend ());
default_pick_pipeline = cogl_pipeline_new (ctx);
}
g_assert (default_pick_pipeline != NULL);
pick_pipeline = cogl_pipeline_copy (default_pick_pipeline);
clutter_actor_get_allocation_box (self, &box);
width = box.x2 - box.x1;
height = box.y2 - box.y1;
cogl_pipeline_set_color4ub (pick_pipeline,
color->red,
color->green,
color->blue,
color->alpha);
cogl_framebuffer_draw_rectangle (framebuffer,
pick_pipeline,
0, 0,
width, height);
cogl_object_unref (pick_pipeline);
clutter_actor_pick_box (self, &box);
}
/* XXX - this thoroughly sucks, but we need to maintain compatibility
@ -3594,15 +3649,6 @@ _clutter_actor_update_last_paint_volume (ClutterActor *self)
priv->last_paint_volume_valid = TRUE;
}
guint32
_clutter_actor_get_pick_id (ClutterActor *self)
{
if (self->priv->pick_id < 0)
return 0;
return self->priv->pick_id;
}
/* This is the same as clutter_actor_add_effect except that it doesn't
queue a redraw and it doesn't notify on the effect property */
static void
@ -3834,6 +3880,7 @@ clutter_actor_paint (ClutterActor *self)
{
ClutterActorPrivate *priv;
ClutterPickMode pick_mode;
ClutterActorBox clip;
gboolean clip_set = FALSE;
ClutterStage *stage;
@ -3927,26 +3974,40 @@ clutter_actor_paint (ClutterActor *self)
if (priv->has_clip)
{
CoglFramebuffer *fb = _clutter_stage_get_active_framebuffer (stage);
cogl_framebuffer_push_rectangle_clip (fb,
priv->clip.origin.x,
priv->clip.origin.y,
priv->clip.origin.x + priv->clip.size.width,
priv->clip.origin.y + priv->clip.size.height);
clip.x1 = priv->clip.origin.x;
clip.y1 = priv->clip.origin.y;
clip.x2 = priv->clip.origin.x + priv->clip.size.width;
clip.y2 = priv->clip.origin.y + priv->clip.size.height;
clip_set = TRUE;
}
else if (priv->clip_to_allocation)
{
CoglFramebuffer *fb = _clutter_stage_get_active_framebuffer (stage);
gfloat width, height;
width = priv->allocation.x2 - priv->allocation.x1;
height = priv->allocation.y2 - priv->allocation.y1;
cogl_framebuffer_push_rectangle_clip (fb, 0, 0, width, height);
clip.x1 = 0.f;
clip.y1 = 0.f;
clip.x2 = priv->allocation.x2 - priv->allocation.x1;
clip.y2 = priv->allocation.y2 - priv->allocation.y1;
clip_set = TRUE;
}
if (clip_set)
{
if (pick_mode == CLUTTER_PICK_NONE)
{
CoglFramebuffer *fb = _clutter_stage_get_active_framebuffer (stage);
cogl_framebuffer_push_rectangle_clip (fb,
clip.x1,
clip.y1,
clip.x2,
clip.y2);
}
else
{
if (!_clutter_actor_push_pick_clip (self, &clip))
clip_set = FALSE;
}
}
if (pick_mode == CLUTTER_PICK_NONE)
{
/* We check whether we need to add the flatten effect before
@ -4025,9 +4086,16 @@ clutter_actor_paint (ClutterActor *self)
done:
if (clip_set)
{
CoglFramebuffer *fb = _clutter_stage_get_active_framebuffer (stage);
if (pick_mode == CLUTTER_PICK_NONE)
{
CoglFramebuffer *fb = _clutter_stage_get_active_framebuffer (stage);
cogl_framebuffer_pop_clip (fb);
cogl_framebuffer_pop_clip (fb);
}
else
{
_clutter_actor_pop_pick_clip (self);
}
}
cogl_pop_matrix ();
@ -4098,11 +4166,12 @@ clutter_actor_continue_paint (ClutterActor *self)
{
ClutterColor col = { 0, };
_clutter_id_to_color (_clutter_actor_get_pick_id (self), &col);
/* Actor will then paint silhouette of itself in supplied
* color. See clutter_stage_get_actor_at_pos() for where
* picking is enabled.
/* The actor will log a silhouette of itself to the stage pick log.
* Note that the picking color is no longer used as the "log" instead
* keeps a weak pointer to the actor itself. But we keep the color
* parameter for now so as to maintain ABI compatibility. The color
* parameter can be removed when someone feels like breaking the ABI
* along with gnome-shell.
*
* XXX:2.0 - Call the pick() virtual directly
*/
@ -8651,8 +8720,6 @@ clutter_actor_init (ClutterActor *self)
self->priv = priv = clutter_actor_get_instance_private (self);
priv->pick_id = -1;
priv->opacity = 0xff;
priv->show_on_set_parent = TRUE;
priv->resource_scale = -1.0f;

4
clutter/clutter/clutter-actor.h
View File

@ -902,6 +902,10 @@ void clutter_actor_bind_model_with_properties
const char *first_model_property,
...);
CLUTTER_EXPORT
void clutter_actor_pick_box (ClutterActor *self,
const ClutterActorBox *box);
G_END_DECLS
#endif /* __CLUTTER_ACTOR_H__ */

1
clutter/clutter/clutter-debug.h
View File

@ -30,7 +30,6 @@ typedef enum
typedef enum
{
CLUTTER_DEBUG_NOP_PICKING = 1 << 0,
CLUTTER_DEBUG_DUMP_PICK_BUFFERS = 1 << 1
} ClutterPickDebugFlag;
typedef enum

120
clutter/clutter/clutter-main.c
View File

@ -129,7 +129,6 @@ static const GDebugKey clutter_debug_keys[] = {
static const GDebugKey clutter_pick_debug_keys[] = {
{ "nop-picking", CLUTTER_DEBUG_NOP_PICKING },
{ "dump-pick-buffers", CLUTTER_DEBUG_DUMP_PICK_BUFFERS },
};
static const GDebugKey clutter_paint_debug_keys[] = {
@ -401,125 +400,6 @@ clutter_disable_accessibility (void)
clutter_enable_accessibility = FALSE;
}
void
_clutter_id_to_color (guint id_,
ClutterColor *col)
{
ClutterMainContext *ctx;
gint red, green, blue;
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));
green = (id_ >> ctx->fb_b_mask_used)
& (0xff >> (8-ctx->fb_g_mask_used));
blue = (id_)
& (0xff >> (8-ctx->fb_b_mask_used));
/* shift left bits a bit and add one, this circumvents
* at least some potential rounding errors in GL/GLES
* driver / hw implementation.
*/
if (ctx->fb_r_mask_used != ctx->fb_r_mask)
red = red * 2;
if (ctx->fb_g_mask_used != ctx->fb_g_mask)
green = green * 2;
if (ctx->fb_b_mask_used != ctx->fb_b_mask)
blue = blue * 2;
/* shift up to be full 8bit values */
red = (red << (8 - ctx->fb_r_mask)) | (0x7f >> (ctx->fb_r_mask_used));
green = (green << (8 - ctx->fb_g_mask)) | (0x7f >> (ctx->fb_g_mask_used));
blue = (blue << (8 - ctx->fb_b_mask)) | (0x7f >> (ctx->fb_b_mask_used));
col->red = red;
col->green = green;
col->blue = blue;
col->alpha = 0xff;
/* XXX: We rotate the nibbles of the colors here so that there is a
* visible variation between colors of sequential actor identifiers;
* otherwise pick buffers dumped to an image will pretty much just look
* black.
*/
if (G_UNLIKELY (clutter_pick_debug_flags & CLUTTER_DEBUG_DUMP_PICK_BUFFERS))
{
col->red = (col->red << 4) | (col->red >> 4);
col->green = (col->green << 4) | (col->green >> 4);
col->blue = (col->blue << 4) | (col->blue >> 4);
}
}
guint
_clutter_pixel_to_id (guchar pixel[4])
{
ClutterMainContext *ctx;
gint red, green, blue;
guint retval;
ctx = _clutter_context_get_default ();
/* reduce the pixel components to the number of bits actually used of the
* 8bits.
*/
if (G_UNLIKELY (clutter_pick_debug_flags & CLUTTER_DEBUG_DUMP_PICK_BUFFERS))
{
guchar tmp;
/* XXX: In _clutter_id_to_color we rotated the nibbles of the colors so
* that there is a visible variation between colors of sequential actor
* identifiers (otherwise pick buffers dumped to an image will pretty
* much just look black.) Here we reverse that rotation.
*/
tmp = ((pixel[0] << 4) | (pixel[0] >> 4));
red = tmp >> (8 - ctx->fb_r_mask);
tmp = ((pixel[1] << 4) | (pixel[1] >> 4));
green = tmp >> (8 - ctx->fb_g_mask);
tmp = ((pixel[2] << 4) | (pixel[2] >> 4));
blue = tmp >> (8 - ctx->fb_b_mask);
}
else
{
red = pixel[0] >> (8 - ctx->fb_r_mask);
green = pixel[1] >> (8 - ctx->fb_g_mask);
blue = pixel[2] >> (8 - ctx->fb_b_mask);
}
/* divide potentially by two if 'fuzzy' */
red = red >> (ctx->fb_r_mask - ctx->fb_r_mask_used);
green = green >> (ctx->fb_g_mask - ctx->fb_g_mask_used);
blue = blue >> (ctx->fb_b_mask - ctx->fb_b_mask_used);
/* combine the correct per component values into the final id */
retval = blue
+ (green << ctx->fb_b_mask_used)
+ (red << (ctx->fb_b_mask_used + ctx->fb_g_mask_used));
return retval;
}
static CoglPangoFontMap *
clutter_context_get_pango_fontmap (void)
{

5
clutter/clutter/clutter-private.h
View File

@ -199,11 +199,6 @@ gboolean _clutter_feature_init (GError **error);
gboolean _clutter_diagnostic_enabled (void);
void _clutter_diagnostic_message (const char *fmt, ...) G_GNUC_PRINTF (1, 2);
/* Picking code */
guint _clutter_pixel_to_id (guchar pixel[4]);
void _clutter_id_to_color (guint id,
ClutterColor *col);
CLUTTER_EXPORT
void _clutter_set_sync_to_vblank (gboolean sync_to_vblank);

16
clutter/clutter/clutter-stage-private.h
View File

@ -79,6 +79,15 @@ gint64 _clutter_stage_get_update_time (ClutterStage *stage);
void _clutter_stage_clear_update_time (ClutterStage *stage);
gboolean _clutter_stage_has_full_redraw_queued (ClutterStage *stage);
void _clutter_stage_log_pick (ClutterStage *stage,
const ClutterPoint *vertices,
ClutterActor *actor);
void _clutter_stage_push_pick_clip (ClutterStage *stage,
const ClutterPoint *vertices);
void _clutter_stage_pop_pick_clip (ClutterStage *stage);
ClutterActor *_clutter_stage_do_pick (ClutterStage *stage,
gint x,
gint y,
@ -97,13 +106,6 @@ void _clutter_stage_queue_redraw_entry_invalidate (Clut
CoglFramebuffer *_clutter_stage_get_active_framebuffer (ClutterStage *stage);
gint32 _clutter_stage_acquire_pick_id (ClutterStage *stage,
ClutterActor *actor);
void _clutter_stage_release_pick_id (ClutterStage *stage,
gint32 pick_id);
ClutterActor * _clutter_stage_get_actor_by_pick_id (ClutterStage *stage,
gint32 pick_id);
void _clutter_stage_add_pointer_drag_actor (ClutterStage *stage,
ClutterInputDevice *device,
ClutterActor *actor);

18
clutter/clutter/clutter-stage-window.c
View File

@ -275,24 +275,6 @@ _clutter_stage_window_redraw (ClutterStageWindow *window)
iface->redraw (window);
}
void
_clutter_stage_window_get_dirty_pixel (ClutterStageWindow *window,
ClutterStageView *view,
int *x, int *y)
{
ClutterStageWindowInterface *iface;
*x = 0;
*y = 0;
g_return_if_fail (CLUTTER_IS_STAGE_WINDOW (window));
iface = CLUTTER_STAGE_WINDOW_GET_IFACE (window);
if (iface->get_dirty_pixel)
iface->get_dirty_pixel (window, view, x, y);
}
gboolean
_clutter_stage_window_can_clip_redraws (ClutterStageWindow *window)
{

8
clutter/clutter/clutter-stage-window.h
View File

@ -64,10 +64,6 @@ struct _ClutterStageWindowInterface
void (* redraw) (ClutterStageWindow *stage_window);
void (* get_dirty_pixel) (ClutterStageWindow *stage_window,
ClutterStageView *view,
int *x, int *y);
gboolean (* can_clip_redraws) (ClutterStageWindow *stage_window);
GList *(* get_views) (ClutterStageWindow *stage_window);
@ -112,10 +108,6 @@ void _clutter_stage_window_set_accept_focus (ClutterStageWin
void _clutter_stage_window_redraw (ClutterStageWindow *window);
void _clutter_stage_window_get_dirty_pixel (ClutterStageWindow *window,
ClutterStageView *view,
int *x, int *y);
gboolean _clutter_stage_window_can_clip_redraws (ClutterStageWindow *window);
GList * _clutter_stage_window_get_views (ClutterStageWindow *window);

463
clutter/clutter/clutter-stage.c
View File

@ -105,6 +105,19 @@ struct _ClutterStageQueueRedrawEntry
ClutterPaintVolume clip;
};
typedef struct _PickRecord
{
ClutterPoint vertex[4];
ClutterActor *actor;
int clip_stack_top;
} PickRecord;
typedef struct _PickClipRecord
{
int prev;
ClutterPoint vertex[4];
} PickClipRecord;
struct _ClutterStagePrivate
{
/* the stage implementation */
@ -138,7 +151,11 @@ struct _ClutterStagePrivate
GTimer *fps_timer;
gint32 timer_n_frames;
ClutterIDPool *pick_id_pool;
GArray *pick_stack;
GArray *pick_clip_stack;
int pick_clip_stack_top;
gboolean pick_stack_frozen;
ClutterPickMode cached_pick_mode;
#ifdef CLUTTER_ENABLE_DEBUG
gulong redraw_count;
@ -323,6 +340,214 @@ clutter_stage_get_preferred_height (ClutterActor *self,
*natural_height_p = geom.height;
}
/* In order to keep weak pointers valid between frames we need them to not
* move in memory, so the stack is marked as "frozen".
*/
static void
_clutter_stage_freeze_pick_stack (ClutterStage *stage)
{
ClutterStagePrivate *priv = stage->priv;
int i;
if (priv->pick_stack_frozen)
return;
for (i = 0; i < priv->pick_stack->len; i++)
{
PickRecord *rec = &g_array_index (priv->pick_stack, PickRecord, i);
if (rec->actor)
g_object_add_weak_pointer (G_OBJECT (rec->actor),
(gpointer) &rec->actor);
}
priv->pick_stack_frozen = TRUE;
}
static void
_clutter_stage_thaw_pick_stack (ClutterStage *stage)
{
ClutterStagePrivate *priv = stage->priv;
int i;
if (!priv->pick_stack_frozen)
return;
for (i = 0; i < priv->pick_stack->len; i++)
{
PickRecord *rec = &g_array_index (priv->pick_stack, PickRecord, i);
if (rec->actor)
g_object_remove_weak_pointer (G_OBJECT (rec->actor),
(gpointer) &rec->actor);
}
priv->pick_stack_frozen = FALSE;
}
static void
_clutter_stage_clear_pick_stack (ClutterStage *stage)
{
ClutterStagePrivate *priv = stage->priv;
_clutter_stage_thaw_pick_stack (stage);
g_array_set_size (priv->pick_stack, 0);
g_array_set_size (priv->pick_clip_stack, 0);
priv->pick_clip_stack_top = -1;
priv->cached_pick_mode = CLUTTER_PICK_NONE;
}
void
_clutter_stage_log_pick (ClutterStage *stage,
const ClutterPoint *vertices,
ClutterActor *actor)
{
ClutterStagePrivate *priv;
PickRecord rec;
g_return_if_fail (CLUTTER_IS_STAGE (stage));
g_return_if_fail (actor != NULL);
priv = stage->priv;
g_assert (!priv->pick_stack_frozen);
memcpy (rec.vertex, vertices, 4 * sizeof (ClutterPoint));
rec.actor = actor;
rec.clip_stack_top = priv->pick_clip_stack_top;
g_array_append_val (priv->pick_stack, rec);
}
void
_clutter_stage_push_pick_clip (ClutterStage *stage,
const ClutterPoint *vertices)
{
ClutterStagePrivate *priv;
PickClipRecord clip;
g_return_if_fail (CLUTTER_IS_STAGE (stage));
priv = stage->priv;
g_assert (!priv->pick_stack_frozen);
clip.prev = priv->pick_clip_stack_top;
memcpy (clip.vertex, vertices, 4 * sizeof (ClutterPoint));
g_array_append_val (priv->pick_clip_stack, clip);
priv->pick_clip_stack_top = priv->pick_clip_stack->len - 1;
}
void
_clutter_stage_pop_pick_clip (ClutterStage *stage)
{
ClutterStagePrivate *priv;
const PickClipRecord *top;
g_return_if_fail (CLUTTER_IS_STAGE (stage));
priv = stage->priv;
g_assert (!priv->pick_stack_frozen);
g_assert (priv->pick_clip_stack_top >= 0);
/* Individual elements of pick_clip_stack are not freed. This is so they
* can be shared as part of a tree of different stacks used by different
* actors in the pick_stack. The whole pick_clip_stack does however get
* freed later in _clutter_stage_clear_pick_stack.
*/
top = &g_array_index (priv->pick_clip_stack,
PickClipRecord,
priv->pick_clip_stack_top);
priv->pick_clip_stack_top = top->prev;
}
static gboolean
is_quadrilateral_axis_aligned_rectangle (const ClutterPoint *vertices)
{
int i;
for (i = 0; i < 4; i++)
{
if (!G_APPROX_VALUE (vertices[i].x,
vertices[(i + 1) % 4].x,
FLT_EPSILON) &&
!G_APPROX_VALUE (vertices[i].y,
vertices[(i + 1) % 4].y,
FLT_EPSILON))
return FALSE;
}
return TRUE;
}
static gboolean
is_inside_axis_aligned_rectangle (const ClutterPoint *point,
const ClutterPoint *vertices)
{
float min_x = FLT_MAX;
float max_x = FLT_MIN;
float min_y = FLT_MAX;
float max_y = FLT_MIN;
int i;
for (i = 0; i < 3; i++)
{
min_x = MIN (min_x, vertices[i].x);
min_y = MIN (min_y, vertices[i].y);
max_x = MAX (max_x, vertices[i].x);
max_y = MAX (max_y, vertices[i].y);
}
return (point->x >= min_x &&
point->y >= min_y &&
point->x < max_x &&
point->y < max_y);
}
static gboolean
is_inside_input_region (const ClutterPoint *point,
const ClutterPoint *vertices)
{
if (is_quadrilateral_axis_aligned_rectangle (vertices))
return is_inside_axis_aligned_rectangle (point, vertices);
else
return clutter_point_inside_quadrilateral (point, vertices);
}
static gboolean
pick_record_contains_pixel (ClutterStage *stage,
const PickRecord *rec,
int x,
int y)
{
const ClutterPoint point = { x, y };
ClutterStagePrivate *priv;
int clip_index;
if (!is_inside_input_region (&point, rec->vertex))
return FALSE;
priv = stage->priv;
clip_index = rec->clip_stack_top;
while (clip_index >= 0)
{
const PickClipRecord *clip = &g_array_index (priv->pick_clip_stack,
PickClipRecord,
clip_index);
if (!is_inside_input_region (&point, clip->vertex))
return FALSE;
clip_index = clip->prev;
}
return TRUE;
}
static inline void
queue_full_redraw (ClutterStage *stage)
{
@ -630,6 +855,12 @@ clutter_stage_do_paint_view (ClutterStage *stage,
float viewport[4];
cairo_rectangle_int_t geom;
/* Any mode of painting/picking invalidates the pick cache, unless we're
* in the middle of building it. So we reset the cached flag but don't
* completely clear the pick stack.
*/
priv->cached_pick_mode = CLUTTER_PICK_NONE;
_clutter_stage_window_get_geometry (priv->impl, &geom);
viewport[0] = priv->viewport[0];
@ -1398,40 +1629,6 @@ clutter_stage_get_redraw_clip_bounds (ClutterStage *stage,
}
}
static void
read_pixels_to_file (CoglFramebuffer *fb,
char *filename_stem,
int x,
int y,
int width,
int height)
{
guint8 *data;
cairo_surface_t *surface;
static int read_count = 0;
char *filename = g_strdup_printf ("%s-%05d.png",
filename_stem,
read_count);
data = g_malloc (4 * width * height);
cogl_framebuffer_read_pixels (fb,
x, y, width, height,
CLUTTER_CAIRO_FORMAT_ARGB32,
data);
surface = cairo_image_surface_create_for_data (data, CAIRO_FORMAT_RGB24,
width, height,
width * 4);
cairo_surface_write_to_png (surface, filename);
cairo_surface_destroy (surface);
g_free (data);
g_free (filename);
read_count++;
}
static ClutterActor *
_clutter_stage_do_pick_on_view (ClutterStage *stage,
gint x,
@ -1439,140 +1636,42 @@ _clutter_stage_do_pick_on_view (ClutterStage *stage,
ClutterPickMode mode,
ClutterStageView *view)
{
ClutterActor *actor = CLUTTER_ACTOR (stage);
ClutterMainContext *context = _clutter_context_get_default ();
ClutterStagePrivate *priv = stage->priv;
CoglFramebuffer *fb = clutter_stage_view_get_framebuffer (view);
cairo_rectangle_int_t view_layout;
ClutterMainContext *context;
guchar pixel[4] = { 0xff, 0xff, 0xff, 0xff };
CoglColor stage_pick_id;
gboolean dither_enabled_save;
ClutterActor *retval;
gint dirty_x;
gint dirty_y;
gint read_x;
gint read_y;
float fb_width, fb_height;
float fb_scale;
float viewport_offset_x;
float viewport_offset_y;
int i;
priv = stage->priv;
g_assert (context->pick_mode == CLUTTER_PICK_NONE);
context = _clutter_context_get_default ();
fb_scale = clutter_stage_view_get_scale (view);
clutter_stage_view_get_layout (view, &view_layout);
fb_width = view_layout.width * fb_scale;
fb_height = view_layout.height * fb_scale;
cogl_push_framebuffer (fb);
/* needed for when a context switch happens */
_clutter_stage_maybe_setup_viewport (stage, view);
/* FIXME: For some reason leaving the cogl clip stack empty causes the
* picking to not work at all, so setting it the whole framebuffer content
* for now. */
cogl_framebuffer_push_scissor_clip (fb, 0, 0,
view_layout.width * fb_scale,
view_layout.height * fb_scale);
_clutter_stage_window_get_dirty_pixel (priv->impl, view, &dirty_x, &dirty_y);
if (G_LIKELY (!(clutter_pick_debug_flags & CLUTTER_DEBUG_DUMP_PICK_BUFFERS)))
if (mode != priv->cached_pick_mode)
{
CLUTTER_NOTE (PICK, "Pushing pick scissor clip x: %d, y: %d, 1x1",
(int) (dirty_x * fb_scale),
(int) (dirty_y * fb_scale));
cogl_framebuffer_push_scissor_clip (fb, dirty_x * fb_scale, dirty_y * fb_scale, 1, 1);
_clutter_stage_clear_pick_stack (stage);
cogl_push_framebuffer (fb);
context->pick_mode = mode;
clutter_stage_do_paint_view (stage, view, NULL);
context->pick_mode = CLUTTER_PICK_NONE;
priv->cached_pick_mode = mode;
cogl_pop_framebuffer ();
_clutter_stage_freeze_pick_stack (stage);
}
viewport_offset_x = x * fb_scale - dirty_x * fb_scale;
viewport_offset_y = y * fb_scale - dirty_y * fb_scale;
CLUTTER_NOTE (PICK, "Setting viewport to %f, %f, %f, %f",
priv->viewport[0] * fb_scale - viewport_offset_x,
priv->viewport[1] * fb_scale - viewport_offset_y,
priv->viewport[2] * fb_scale,
priv->viewport[3] * fb_scale);
cogl_framebuffer_set_viewport (fb,
priv->viewport[0] * fb_scale - viewport_offset_x,
priv->viewport[1] * fb_scale - viewport_offset_y,
priv->viewport[2] * fb_scale,
priv->viewport[3] * fb_scale);
read_x = dirty_x * fb_scale;
read_y = dirty_y * fb_scale;
CLUTTER_NOTE (PICK, "Performing pick at %i,%i on view %dx%d+%d+%d s: %f",
x, y,
view_layout.width, view_layout.height,
view_layout.x, view_layout.y, fb_scale);
cogl_color_init_from_4ub (&stage_pick_id, 255, 255, 255, 255);
cogl_framebuffer_clear (fb, COGL_BUFFER_BIT_COLOR | COGL_BUFFER_BIT_DEPTH, &stage_pick_id);
/* Disable dithering (if any) when doing the painting in pick mode */
dither_enabled_save = cogl_framebuffer_get_dither_enabled (fb);
cogl_framebuffer_set_dither_enabled (fb, FALSE);
/* Render the entire scence in pick mode - just single colored silhouette's
* are drawn offscreen (as we never swap buffers)
*/
context->pick_mode = mode;
clutter_stage_do_paint_view (stage, view, NULL);
context->pick_mode = CLUTTER_PICK_NONE;
/* Read the color of the screen co-ords pixel. RGBA_8888_PRE is used
even though we don't care about the alpha component because under
GLES this is the only format that is guaranteed to work so Cogl
will end up having to do a conversion if any other format is
used. The format is requested as pre-multiplied because Cogl
assumes that all pixels in the framebuffer are premultiplied so
it avoids a conversion. */
cogl_framebuffer_read_pixels (fb,
read_x, read_y, 1, 1,
COGL_PIXEL_FORMAT_RGBA_8888_PRE,
pixel);
if (G_UNLIKELY (clutter_pick_debug_flags & CLUTTER_DEBUG_DUMP_PICK_BUFFERS))
/* Search all "painted" pickable actors from front to back. A linear search
* is required, and also performs fine since there is typically only
* on the order of dozens of actors in the list (on screen) at a time.
*/
for (i = priv->pick_stack->len - 1; i >= 0; i--)
{
char *file_name =
g_strdup_printf ("pick-buffer-%s-view-x-%d",
_clutter_actor_get_debug_name (actor),
view_layout.x);
const PickRecord *rec = &g_array_index (priv->pick_stack, PickRecord, i);
read_pixels_to_file (fb, file_name, 0, 0, fb_width, fb_height);
g_free (file_name);
if (rec->actor && pick_record_contains_pixel (stage, rec, x, y))
return rec->actor;
}
/* Restore whether GL_DITHER was enabled */
cogl_framebuffer_set_dither_enabled (fb, dither_enabled_save);
if (G_LIKELY (!(clutter_pick_debug_flags & CLUTTER_DEBUG_DUMP_PICK_BUFFERS)))
cogl_framebuffer_pop_clip (fb);
cogl_framebuffer_pop_clip (fb);
_clutter_stage_dirty_viewport (stage);
if (pixel[0] == 0xff && pixel[1] == 0xff && pixel[2] == 0xff)
retval = actor;
else
{
guint32 id_ = _clutter_pixel_to_id (pixel);
retval = _clutter_stage_get_actor_by_pick_id (stage, id_);
CLUTTER_NOTE (PICK, "Picking actor %s with id %u (pixel: 0x%x%x%x%x",
G_OBJECT_TYPE_NAME (retval),
id_,
pixel[0], pixel[1], pixel[2], pixel[3]);
}
cogl_pop_framebuffer ();
return retval;
return CLUTTER_ACTOR (stage);
}
/**
@ -1867,7 +1966,9 @@ clutter_stage_finalize (GObject *object)
g_array_free (priv->paint_volume_stack, TRUE);
_clutter_id_pool_free (priv->pick_id_pool);
_clutter_stage_clear_pick_stack (stage);
g_array_free (priv->pick_clip_stack, TRUE);
g_array_free (priv->pick_stack, TRUE);
if (priv->fps_timer != NULL)
g_timer_destroy (priv->fps_timer);
@ -2302,7 +2403,10 @@ clutter_stage_init (ClutterStage *self)
priv->paint_volume_stack =
g_array_new (FALSE, FALSE, sizeof (ClutterPaintVolume));
priv->pick_id_pool = _clutter_id_pool_new (256);
priv->pick_stack = g_array_new (FALSE, FALSE, sizeof (PickRecord));
priv->pick_clip_stack = g_array_new (FALSE, FALSE, sizeof (PickClipRecord));
priv->pick_clip_stack_top = -1;
priv->cached_pick_mode = CLUTTER_PICK_NONE;
}
/**
@ -3980,6 +4084,12 @@ _clutter_stage_queue_actor_redraw (ClutterStage *stage,
CLUTTER_NOTE (CLIPPING, "stage_queue_actor_redraw (actor=%s, clip=%p): ",
_clutter_actor_get_debug_name (actor), clip);
/* Queuing a redraw or clip change invalidates the pick cache, unless we're
* in the middle of building it. So we reset the cached flag but don't
* completely clear the pick stack...
*/
priv->cached_pick_mode = CLUTTER_PICK_NONE;
if (!priv->redraw_pending)
{
ClutterMasterClock *master_clock;
@ -4240,39 +4350,6 @@ _clutter_stage_get_active_framebuffer (ClutterStage *stage)
return stage->priv->active_framebuffer;
}
gint32
_clutter_stage_acquire_pick_id (ClutterStage *stage,
ClutterActor *actor)
{
ClutterStagePrivate *priv = stage->priv;
g_assert (priv->pick_id_pool != NULL);
return _clutter_id_pool_add (priv->pick_id_pool, actor);
}
void
_clutter_stage_release_pick_id (ClutterStage *stage,
gint32 pick_id)
{
ClutterStagePrivate *priv = stage->priv;
g_assert (priv->pick_id_pool != NULL);
_clutter_id_pool_remove (priv->pick_id_pool, pick_id);
}
ClutterActor *
_clutter_stage_get_actor_by_pick_id (ClutterStage *stage,
gint32 pick_id)
{
ClutterStagePrivate *priv = stage->priv;
g_assert (priv->pick_id_pool != NULL);
return _clutter_id_pool_lookup (priv->pick_id_pool, pick_id);
}
void
_clutter_stage_add_pointer_drag_actor (ClutterStage *stage,
ClutterInputDevice *device,

50
clutter/clutter/cogl/clutter-stage-cogl.c
View File

@ -1004,55 +1004,6 @@ clutter_stage_cogl_redraw (ClutterStageWindow *stage_window)
COGL_TRACE_END (ClutterStageCoglRedraw);
}
static void
clutter_stage_cogl_get_dirty_pixel (ClutterStageWindow *stage_window,
ClutterStageView *view,
int *x,
int *y)
{
CoglFramebuffer *framebuffer = clutter_stage_view_get_framebuffer (view);
gboolean has_buffer_age =
cogl_is_onscreen (framebuffer) &&
is_buffer_age_enabled ();
float fb_scale;
gboolean scale_is_fractional;
fb_scale = clutter_stage_view_get_scale (view);
if (fb_scale != floorf (fb_scale))
scale_is_fractional = TRUE;
else
scale_is_fractional = FALSE;
/*
* Buffer damage is tracked in the framebuffer coordinate space
* using the damage history. When fractional scaling is used, a
* coordinate on the stage might not correspond to the exact position of any
* physical pixel, which causes issues when painting using the pick mode.
*
* For now, always use the (0, 0) pixel for picking when using fractional
* framebuffer scaling.
*/
if (!has_buffer_age || scale_is_fractional)
{
*x = 0;
*y = 0;
}
else
{
ClutterStageViewCogl *view_cogl = CLUTTER_STAGE_VIEW_COGL (view);
ClutterStageViewCoglPrivate *view_priv =
clutter_stage_view_cogl_get_instance_private (view_cogl);
cairo_rectangle_int_t view_layout;
cairo_rectangle_int_t *fb_damage;
clutter_stage_view_get_layout (view, &view_layout);
fb_damage = &view_priv->damage_history[DAMAGE_HISTORY (view_priv->damage_index - 1)];
*x = fb_damage->x / fb_scale;
*y = fb_damage->y / fb_scale;
}
}
static void
clutter_stage_window_iface_init (ClutterStageWindowInterface *iface)
{
@ -1070,7 +1021,6 @@ clutter_stage_window_iface_init (ClutterStageWindowInterface *iface)
iface->ignoring_redraw_clips = clutter_stage_cogl_ignoring_redraw_clips;
iface->get_redraw_clip_bounds = clutter_stage_cogl_get_redraw_clip_bounds;
iface->redraw = clutter_stage_cogl_redraw;
iface->get_dirty_pixel = clutter_stage_cogl_get_dirty_pixel;
}
static void

93
clutter/clutter/deprecated/clutter-texture.c
View File

@ -572,83 +572,6 @@ gen_texcoords_and_draw_cogl_rectangle (ClutterActor *self,
0, 0, t_w, t_h);
}
static CoglPipeline *
create_pick_pipeline (ClutterActor *self)
{
ClutterTexture *texture = CLUTTER_TEXTURE (self);
ClutterTexturePrivate *priv = texture->priv;
CoglPipeline *pick_pipeline = cogl_pipeline_copy (texture_template_pipeline);
GError *error = NULL;
if (!cogl_pipeline_set_layer_combine (pick_pipeline, 0,
"RGBA = "
" MODULATE (CONSTANT, TEXTURE[A])",
&error))
{
if (!priv->seen_create_pick_pipeline_warning)
g_warning ("Error setting up texture combine for shaped "
"texture picking: %s", error->message);
priv->seen_create_pick_pipeline_warning = TRUE;
g_error_free (error);
cogl_object_unref (pick_pipeline);
return NULL;
}
cogl_pipeline_set_blend (pick_pipeline,
"RGBA = ADD (SRC_COLOR[RGBA], 0)",
NULL);
cogl_pipeline_set_alpha_test_function (pick_pipeline,
COGL_PIPELINE_ALPHA_FUNC_EQUAL,
1.0);
return pick_pipeline;
}
static void
clutter_texture_pick (ClutterActor *self,
const ClutterColor *color)
{
ClutterTexture *texture = CLUTTER_TEXTURE (self);
ClutterTexturePrivate *priv = texture->priv;
CoglFramebuffer *framebuffer = cogl_get_draw_framebuffer ();
if (!clutter_actor_should_pick_paint (self))
return;
if (G_LIKELY (priv->pick_with_alpha_supported) && priv->pick_with_alpha)
{
CoglColor pick_color;
if (priv->pick_pipeline == NULL)
priv->pick_pipeline = create_pick_pipeline (self);
if (priv->pick_pipeline == NULL)
{
priv->pick_with_alpha_supported = FALSE;
CLUTTER_ACTOR_CLASS (clutter_texture_parent_class)->pick (self,
color);
return;
}
if (priv->fbo_handle != NULL)
update_fbo (self);
cogl_color_init_from_4ub (&pick_color,
color->red,
color->green,
color->blue,
0xff);
cogl_pipeline_set_layer_combine_constant (priv->pick_pipeline,
0, &pick_color);
cogl_pipeline_set_layer_texture (priv->pick_pipeline, 0,
clutter_texture_get_cogl_texture (texture));
gen_texcoords_and_draw_cogl_rectangle (self, priv->pick_pipeline, framebuffer);
}
else
CLUTTER_ACTOR_CLASS (clutter_texture_parent_class)->pick (self, color);
}
static void
clutter_texture_paint (ClutterActor *self)
{
@ -767,12 +690,6 @@ clutter_texture_dispose (GObject *object)
priv->pipeline = NULL;
}
if (priv->pick_pipeline != NULL)
{
cogl_object_unref (priv->pick_pipeline);
priv->pick_pipeline = NULL;
}
G_OBJECT_CLASS (clutter_texture_parent_class)->dispose (object);
}
@ -944,7 +861,6 @@ clutter_texture_class_init (ClutterTextureClass *klass)
GParamSpec *pspec;
actor_class->paint = clutter_texture_paint;
actor_class->pick = clutter_texture_pick;
actor_class->get_paint_volume = clutter_texture_get_paint_volume;
actor_class->realize = clutter_texture_realize;
actor_class->unrealize = clutter_texture_unrealize;
@ -1261,11 +1177,9 @@ clutter_texture_init (ClutterTexture *self)
priv->repeat_y = FALSE;
priv->sync_actor_size = TRUE;
priv->fbo_handle = NULL;
priv->pick_pipeline = NULL;
priv->keep_aspect_ratio = FALSE;
priv->pick_with_alpha = FALSE;
priv->pick_with_alpha_supported = TRUE;
priv->seen_create_pick_pipeline_warning = FALSE;
if (G_UNLIKELY (texture_template_pipeline == NULL))
{
@ -3048,13 +2962,8 @@ clutter_texture_set_pick_with_alpha (ClutterTexture *texture,
if (priv->pick_with_alpha == pick_with_alpha)
return;
if (!pick_with_alpha && priv->pick_pipeline != NULL)
{
cogl_object_unref (priv->pick_pipeline);
priv->pick_pipeline = NULL;
}
g_assert (!pick_with_alpha); /* No longer supported */
/* NB: the pick pipeline is created lazily when we first pick */
priv->pick_with_alpha = pick_with_alpha;
/* NB: actors are expected to call clutter_actor_queue_redraw when

27
src/compositor/meta-surface-actor.c
View File

@ -147,38 +147,23 @@ meta_surface_actor_pick (ClutterActor *actor,
else
{
int n_rects;
float *rectangles;
int i;
CoglPipeline *pipeline;
CoglContext *ctx;
CoglFramebuffer *fb;
CoglColor cogl_color;
n_rects = cairo_region_num_rectangles (priv->input_region);
rectangles = g_alloca (sizeof (float) * 4 * n_rects);
for (i = 0; i < n_rects; i++)
{
cairo_rectangle_int_t rect;
int pos = i * 4;
ClutterActorBox box;
cairo_region_get_rectangle (priv->input_region, i, &rect);
rectangles[pos + 0] = rect.x;
rectangles[pos + 1] = rect.y;
rectangles[pos + 2] = rect.x + rect.width;
rectangles[pos + 3] = rect.y + rect.height;
box.x1 = rect.x;
box.y1 = rect.y;
box.x2 = rect.x + rect.width;
box.y2 = rect.y + rect.height;
clutter_actor_pick_box (actor, &box);
}
ctx = clutter_backend_get_cogl_context (clutter_get_default_backend ());
fb = cogl_get_draw_framebuffer ();
cogl_color_init_from_4ub (&cogl_color, color->red, color->green, color->blue, color->alpha);
pipeline = cogl_pipeline_new (ctx);
cogl_pipeline_set_color (pipeline, &cogl_color);
cogl_framebuffer_draw_rectangles (fb, pipeline, rectangles, n_rects);
cogl_object_unref (pipeline);
}
clutter_actor_iter_init (&iter, actor);

99
src/tests/clutter/conform/actor-pick.c
View File

@ -7,7 +7,6 @@
#define STAGE_HEIGHT 480
#define ACTORS_X 12
#define ACTORS_Y 16
#define SHIFT_STEP STAGE_WIDTH / ACTORS_X
typedef struct _State State;
@ -22,84 +21,11 @@ struct _State
gboolean pass;
};
struct _ShiftEffect
{
ClutterShaderEffect parent_instance;
};
struct _ShiftEffectClass
{
ClutterShaderEffectClass parent_class;
};
typedef struct _ShiftEffect ShiftEffect;
typedef struct _ShiftEffectClass ShiftEffectClass;
#define TYPE_SHIFT_EFFECT (shift_effect_get_type ())
GType shift_effect_get_type (void);
G_DEFINE_TYPE (ShiftEffect,
shift_effect,
CLUTTER_TYPE_SHADER_EFFECT);
static void
shader_paint (ClutterEffect *effect,
ClutterEffectPaintFlags flags)
{
ClutterShaderEffect *shader = CLUTTER_SHADER_EFFECT (effect);
float tex_width;
ClutterActor *actor =
clutter_actor_meta_get_actor (CLUTTER_ACTOR_META (effect));
if (g_test_verbose ())
g_debug ("shader_paint");
clutter_shader_effect_set_shader_source (shader,
"uniform sampler2D tex;\n"
"uniform float step;\n"
"void main (void)\n"
"{\n"
" cogl_color_out = texture2D(tex, vec2 (cogl_tex_coord_in[0].s + step,\n"
" cogl_tex_coord_in[0].t));\n"
"}\n");
tex_width = clutter_actor_get_width (actor);
clutter_shader_effect_set_uniform (shader, "tex", G_TYPE_INT, 1, 0);
clutter_shader_effect_set_uniform (shader, "step", G_TYPE_FLOAT, 1,
SHIFT_STEP / tex_width);
CLUTTER_EFFECT_CLASS (shift_effect_parent_class)->paint (effect, flags);
}
static void
shader_pick (ClutterEffect *effect,
ClutterEffectPaintFlags flags)
{
shader_paint (effect, flags);
}
static void
shift_effect_class_init (ShiftEffectClass *klass)
{
ClutterEffectClass *shader_class = CLUTTER_EFFECT_CLASS (klass);
shader_class->paint = shader_paint;
shader_class->pick = shader_pick;
}
static void
shift_effect_init (ShiftEffect *self)
{
}
static const char *test_passes[] = {
"No covering actor",
"Invisible covering actor",
"Clipped covering actor",
"Blur effect",
"Shift effect",
};
static gboolean
@ -167,30 +93,10 @@ on_timeout (gpointer data)
if (g_test_verbose ())
g_print ("With blur effect:\n");
}
else if (test_num == 4)
{
if (!clutter_feature_available (CLUTTER_FEATURE_SHADERS_GLSL))
continue;
clutter_actor_hide (over_actor);
clutter_actor_remove_effect_by_name (CLUTTER_ACTOR (state->stage),
"blur");
clutter_actor_add_effect_with_name (CLUTTER_ACTOR (state->stage),
"shift",
g_object_new (TYPE_SHIFT_EFFECT,
NULL));
if (g_test_verbose ())
g_print ("With shift effect:\n");
}
for (y = 0; y < ACTORS_Y; y++)
{
if (test_num == 4)
x = 1;
else
x = 0;
x = 0;
for (; x < ACTORS_X; x++)
{
@ -200,9 +106,6 @@ on_timeout (gpointer data)
pick_x = x * state->actor_width + state->actor_width / 2;
if (test_num == 4)
pick_x -= SHIFT_STEP;
actor =
clutter_stage_get_actor_at_pos (CLUTTER_STAGE (state->stage),
CLUTTER_PICK_ALL,

1
src/tests/clutter/conform/meson.build
View File

@ -40,7 +40,6 @@ clutter_conform_tests_deprecated_tests = [
'behaviours',
'group',
'rectangle',
'texture',
]
clutter_conform_tests = []

86
src/tests/clutter/conform/texture.c
View File

@ -1,86 +0,0 @@
#define CLUTTER_DISABLE_DEPRECATION_WARNINGS
#include <clutter/clutter.h>
#include <string.h>
#include "tests/clutter-test-utils.h"
static CoglHandle
make_texture (void)
{
guint32 *data = g_malloc (100 * 100 * 4);
int x;
int y;
for (y = 0; y < 100; y ++)
for (x = 0; x < 100; x++)
{
if (x < 50 && y < 50)
data[y * 100 + x] = 0xff00ff00;
else
data[y * 100 + x] = 0xff00ffff;
}
return cogl_texture_new_from_data (100,
100,
COGL_TEXTURE_NONE,
COGL_PIXEL_FORMAT_ARGB_8888,
COGL_PIXEL_FORMAT_ARGB_8888,
400,
(guchar *)data);
}
static void
texture_pick_with_alpha (void)
{
ClutterTexture *tex = CLUTTER_TEXTURE (clutter_texture_new ());
ClutterStage *stage = CLUTTER_STAGE (clutter_test_get_stage ());
ClutterActor *actor;
clutter_texture_set_cogl_texture (tex, make_texture ());
clutter_actor_add_child (CLUTTER_ACTOR (stage), CLUTTER_ACTOR (tex));
clutter_actor_show (CLUTTER_ACTOR (stage));
if (g_test_verbose ())
{
g_print ("\nstage = %p\n", stage);
g_print ("texture = %p\n\n", tex);
}
clutter_texture_set_pick_with_alpha (tex, TRUE);
if (g_test_verbose ())
g_print ("Testing with pick-with-alpha enabled:\n");
/* This should fall through and hit the stage: */
actor = clutter_stage_get_actor_at_pos (stage, CLUTTER_PICK_ALL, 10, 10);
if (g_test_verbose ())
g_print ("actor @ (10, 10) = %p\n", actor);
g_assert (actor == CLUTTER_ACTOR (stage));
/* The rest should hit the texture */
actor = clutter_stage_get_actor_at_pos (stage, CLUTTER_PICK_ALL, 90, 10);
if (g_test_verbose ())
g_print ("actor @ (90, 10) = %p\n", actor);
g_assert (actor == CLUTTER_ACTOR (tex));
actor = clutter_stage_get_actor_at_pos (stage, CLUTTER_PICK_ALL, 90, 90);
if (g_test_verbose ())
g_print ("actor @ (90, 90) = %p\n", actor);
g_assert (actor == CLUTTER_ACTOR (tex));
actor = clutter_stage_get_actor_at_pos (stage, CLUTTER_PICK_ALL, 10, 90);
if (g_test_verbose ())
g_print ("actor @ (10, 90) = %p\n", actor);
g_assert (actor == CLUTTER_ACTOR (tex));
clutter_texture_set_pick_with_alpha (tex, FALSE);
if (g_test_verbose ())
g_print ("Testing with pick-with-alpha disabled:\n");
actor = clutter_stage_get_actor_at_pos (stage, CLUTTER_PICK_ALL, 10, 10);
if (g_test_verbose ())
g_print ("actor @ (10, 10) = %p\n", actor);
g_assert (actor == CLUTTER_ACTOR (tex));
}
CLUTTER_TEST_SUITE (
CLUTTER_TEST_UNIT ("/texture/pick-with-alpha", texture_pick_with_alpha)
)