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clutter/stage-cogl: Add option to visualize damaged regions

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This is useful to visualize which parts of the screen are being
damaged.

Add a new 'damage-region' value for CLUTTER_PAINT and paint the
damaged regions accordingly.
This commit is contained in:
Georges Basile Stavracas Neto 2018-08-10 01:03:54 -03:00
parent e4de9ed580
commit 20b271fa49
3 changed files with 61 additions and 1 deletions
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3
clutter/clutter/clutter-debug.h
View File

@ -39,7 +39,8 @@ typedef enum {
CLUTTER_DEBUG_DISABLE_CULLING = 1 << 4,
CLUTTER_DEBUG_DISABLE_OFFSCREEN_REDIRECT = 1 << 5,
CLUTTER_DEBUG_CONTINUOUS_REDRAW = 1 << 6,
CLUTTER_DEBUG_PAINT_DEFORM_TILES = 1 << 7
CLUTTER_DEBUG_PAINT_DEFORM_TILES = 1 << 7,
CLUTTER_DEBUG_PAINT_DAMAGE_REGION = 1 << 8,
} ClutterDrawDebugFlag;
#ifdef CLUTTER_ENABLE_DEBUG

4
clutter/clutter/clutter-main.c
View File

@ -142,6 +142,7 @@ static const GDebugKey clutter_paint_debug_keys[] = {
{ "disable-offscreen-redirect", CLUTTER_DEBUG_DISABLE_OFFSCREEN_REDIRECT },
{ "continuous-redraw", CLUTTER_DEBUG_CONTINUOUS_REDRAW },
{ "paint-deform-tiles", CLUTTER_DEBUG_PAINT_DEFORM_TILES },
{ "damage-region", CLUTTER_DEBUG_PAINT_DAMAGE_REGION },
};
static void
@ -1365,6 +1366,9 @@ clutter_init_real (GError **error)
CLUTTER_DEBUG_DISABLE_CLIPPED_REDRAWS | CLUTTER_DEBUG_DISABLE_CULLING;
}
if (clutter_paint_debug_flags & CLUTTER_DEBUG_PAINT_DAMAGE_REGION)
g_message ("Enabling damaged region");
/* this will take care of initializing Cogl's state and
* query the GL machinery for features
*/

55
clutter/clutter/cogl/clutter-stage-cogl.c
View File

@ -351,6 +351,58 @@ valid_buffer_age (ClutterStageViewCogl *view_cogl,
return age < MIN (view_priv->damage_index, DAMAGE_HISTORY_MAX);
}
static void
paint_damage_region (ClutterStageWindow *stage_window,
ClutterStageView *view,
cairo_rectangle_int_t *swap_region)
{
CoglFramebuffer *framebuffer = clutter_stage_view_get_onscreen (view);
CoglContext *ctx = cogl_framebuffer_get_context (framebuffer);
static CoglPipeline *overlay_blue = NULL;
ClutterStageCogl *stage_cogl = CLUTTER_STAGE_COGL (stage_window);
ClutterActor *actor = CLUTTER_ACTOR (stage_cogl->wrapper);
float x_1 = swap_region->x;
float x_2 = swap_region->x + swap_region->width;
float y_1 = swap_region->y;
float y_2 = swap_region->y + swap_region->height;
CoglMatrix modelview;
if (G_UNLIKELY (overlay_blue == NULL))
{
overlay_blue = cogl_pipeline_new (ctx);
cogl_pipeline_set_color4ub (overlay_blue, 0x00, 0x00, 0x33, 0x33);
}
cogl_framebuffer_push_matrix (framebuffer);
cogl_matrix_init_identity (&modelview);
_clutter_actor_apply_modelview_transform (actor, &modelview);
cogl_framebuffer_set_modelview_matrix (framebuffer, &modelview);
/* Blue for the swap region */
cogl_framebuffer_draw_rectangle (framebuffer, overlay_blue, x_1, y_1, x_2, y_2);
/* Red for the clip */
if (stage_cogl->initialized_redraw_clip)
{
static CoglPipeline *overlay_red = NULL;
if (G_UNLIKELY (overlay_red == NULL))
{
overlay_red = cogl_pipeline_new (ctx);
cogl_pipeline_set_color4ub (overlay_red, 0x33, 0x00, 0x00, 0x33);
}
x_1 = stage_cogl->bounding_redraw_clip.x;
x_2 = stage_cogl->bounding_redraw_clip.x + stage_cogl->bounding_redraw_clip.width;
y_1 = stage_cogl->bounding_redraw_clip.y;
y_2 = stage_cogl->bounding_redraw_clip.y + stage_cogl->bounding_redraw_clip.height;
cogl_framebuffer_draw_rectangle (framebuffer, overlay_red, x_1, y_1, x_2, y_2);
}
cogl_framebuffer_pop_matrix (framebuffer);
}
static gboolean
swap_framebuffer (ClutterStageWindow *stage_window,
ClutterStageView *view,
@ -370,6 +422,9 @@ swap_framebuffer (ClutterStageWindow *stage_window,
else
ndamage = 0;
if (G_UNLIKELY ((clutter_paint_debug_flags & CLUTTER_DEBUG_PAINT_DAMAGE_REGION)))
paint_damage_region (stage_window, view, swap_region);
if (cogl_is_onscreen (framebuffer))
{
CoglOnscreen *onscreen = COGL_ONSCREEN (framebuffer);