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ClutterStage: Store clip area as a region

Browse Source 
This will allow drawing optimizations as a region is more concrete
than the bounding rectangle.

https://gitlab.gnome.org/GNOME/mutter/merge_requests/692
This commit is contained in:
Carlos Garnacho 2019-07-20 17:52:11 +02:00 committed by Robert Mader
parent bd1630a12c
commit a7f4f5b291
6 changed files with 218 additions and 128 deletions
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28
clutter/clutter/clutter-stage-window.c
View File

@ -235,19 +235,35 @@ _clutter_stage_window_ignoring_redraw_clips (ClutterStageWindow *window)
return TRUE;
}
gboolean
_clutter_stage_window_get_redraw_clip_bounds (ClutterStageWindow *window,
cairo_rectangle_int_t *stage_clip)
cairo_region_t *
_clutter_stage_window_get_redraw_clip (ClutterStageWindow *window)
{
ClutterStageWindowInterface *iface;
g_return_val_if_fail (CLUTTER_IS_STAGE_WINDOW (window), FALSE);
iface = CLUTTER_STAGE_WINDOW_GET_IFACE (window);
if (iface->get_redraw_clip_bounds != NULL)
return iface->get_redraw_clip_bounds (window, stage_clip);
if (iface->get_redraw_clip != NULL)
return iface->get_redraw_clip (window);
return FALSE;
return NULL;
}
gboolean
_clutter_stage_window_get_redraw_clip_bounds (ClutterStageWindow *window,
cairo_rectangle_int_t *stage_clip)
{
cairo_region_t *redraw_clip;
g_return_val_if_fail (CLUTTER_IS_STAGE_WINDOW (window), FALSE);
redraw_clip = _clutter_stage_window_get_redraw_clip (window);
if (!redraw_clip)
return FALSE;
cairo_region_get_extents (redraw_clip, stage_clip);
cairo_region_destroy (redraw_clip);
return TRUE;
}
void

5
clutter/clutter/clutter-stage-window.h
View File

@ -55,9 +55,7 @@ struct _ClutterStageWindowInterface
cairo_rectangle_int_t *stage_rectangle);
gboolean (* has_redraw_clips) (ClutterStageWindow *stage_window);
gboolean (* ignoring_redraw_clips) (ClutterStageWindow *stage_window);
gboolean (* get_redraw_clip_bounds) (ClutterStageWindow *stage_window,
cairo_rectangle_int_t *clip);
cairo_region_t * (* get_redraw_clip) (ClutterStageWindow *stage_window);
void (* set_accept_focus) (ClutterStageWindow *stage_window,
gboolean accept_focus);
@ -102,6 +100,7 @@ gboolean _clutter_stage_window_has_redraw_clips (ClutterStageWin
gboolean _clutter_stage_window_ignoring_redraw_clips (ClutterStageWindow *window);
gboolean _clutter_stage_window_get_redraw_clip_bounds (ClutterStageWindow *window,
cairo_rectangle_int_t *clip);
cairo_region_t * _clutter_stage_window_get_redraw_clip (ClutterStageWindow *window);
void _clutter_stage_window_set_accept_focus (ClutterStageWindow *window,
gboolean accept_focus);

20
clutter/clutter/clutter-stage.c
View File

@ -1646,6 +1646,26 @@ _clutter_stage_has_full_redraw_queued (ClutterStage *stage)
return FALSE;
}
cairo_region_t *
clutter_stage_get_redraw_clip (ClutterStage *stage)
{
ClutterStagePrivate *priv;
cairo_rectangle_int_t clip;
cairo_region_t *region;
g_return_val_if_fail (CLUTTER_IS_STAGE (stage), NULL);
priv = stage->priv;
region = _clutter_stage_window_get_redraw_clip (priv->impl);
if (region)
return region;
/* Set clip to the full extents of the stage */
_clutter_stage_window_get_geometry (priv->impl, &clip);
return cairo_region_create_rectangle (&clip);
}
/**
* clutter_stage_get_redraw_clip_bounds:
* @stage: A #ClutterStage

2
clutter/clutter/clutter-stage.h
View File

@ -214,6 +214,8 @@ CLUTTER_EXPORT
void clutter_stage_get_redraw_clip_bounds (ClutterStage *stage,
cairo_rectangle_int_t *clip);
CLUTTER_EXPORT
cairo_region_t * clutter_stage_get_redraw_clip (ClutterStage *stage);
CLUTTER_EXPORT
void clutter_stage_ensure_viewport (ClutterStage *stage);
CLUTTER_EXPORT
void clutter_stage_ensure_redraw (ClutterStage *stage);

289
clutter/clutter/cogl/clutter-stage-cogl.c
View File

@ -56,7 +56,7 @@ typedef struct _ClutterStageViewCoglPrivate
*/
#define DAMAGE_HISTORY_MAX 16
#define DAMAGE_HISTORY(x) ((x) & (DAMAGE_HISTORY_MAX - 1))
cairo_rectangle_int_t damage_history[DAMAGE_HISTORY_MAX];
cairo_region_t * damage_history[DAMAGE_HISTORY_MAX];
unsigned int damage_index;
} ClutterStageViewCoglPrivate;
@ -296,13 +296,10 @@ clutter_stage_cogl_has_redraw_clips (ClutterStageWindow *stage_window)
/* NB: at the start of each new frame there is an implied clip that
* clips everything (i.e. nothing would be drawn) so we need to make
* sure we return True in the un-initialized case here.
*
* NB: a clip width of 0 means a full stage redraw has been queued
* so we effectively don't have any redraw clips in that case.
*/
if (!stage_cogl->initialized_redraw_clip ||
(stage_cogl->initialized_redraw_clip &&
stage_cogl->bounding_redraw_clip.width != 0))
stage_cogl->redraw_clip))
return TRUE;
else
return FALSE;
@ -313,9 +310,9 @@ clutter_stage_cogl_ignoring_redraw_clips (ClutterStageWindow *stage_window)
{
ClutterStageCogl *stage_cogl = CLUTTER_STAGE_COGL (stage_window);
/* NB: a clip width of 0 means a full stage redraw is required */
/* NB: a NULL clip means a full stage redraw is required */
if (stage_cogl->initialized_redraw_clip &&
stage_cogl->bounding_redraw_clip.width == 0)
!stage_cogl->redraw_clip)
return TRUE;
else
return FALSE;
@ -346,11 +343,11 @@ clutter_stage_cogl_add_redraw_clip (ClutterStageWindow *stage_window,
return;
/* A NULL stage clip means a full stage redraw has been queued and
* we keep track of this by setting a zero width
* stage_cogl->bounding_redraw_clip */
* we keep track of this by setting a NULL redraw_clip.
*/
if (stage_clip == NULL)
{
stage_cogl->bounding_redraw_clip.width = 0;
g_clear_pointer (&stage_cogl->redraw_clip, cairo_region_destroy);
stage_cogl->initialized_redraw_clip = TRUE;
return;
}
@ -359,34 +356,27 @@ clutter_stage_cogl_add_redraw_clip (ClutterStageWindow *stage_window,
if (stage_clip->width == 0 || stage_clip->height == 0)
return;
if (!stage_cogl->initialized_redraw_clip)
if (!stage_cogl->redraw_clip)
{
stage_cogl->bounding_redraw_clip = *stage_clip;
stage_cogl->redraw_clip = cairo_region_create_rectangle (stage_clip);
}
else if (stage_cogl->bounding_redraw_clip.width > 0)
else
{
_clutter_util_rectangle_union (&stage_cogl->bounding_redraw_clip,
stage_clip,
&stage_cogl->bounding_redraw_clip);
cairo_region_union_rectangle (stage_cogl->redraw_clip, stage_clip);
}
stage_cogl->initialized_redraw_clip = TRUE;
}
static gboolean
clutter_stage_cogl_get_redraw_clip_bounds (ClutterStageWindow *stage_window,
cairo_rectangle_int_t *stage_clip)
static cairo_region_t *
clutter_stage_cogl_get_redraw_clip (ClutterStageWindow *stage_window)
{
ClutterStageCogl *stage_cogl = CLUTTER_STAGE_COGL (stage_window);
if (stage_cogl->using_clipped_redraw)
{
*stage_clip = stage_cogl->bounding_redraw_clip;
if (stage_cogl->using_clipped_redraw && stage_cogl->redraw_clip)
return cairo_region_copy (stage_cogl->redraw_clip);
return TRUE;
}
return FALSE;
return NULL;
}
static inline gboolean
@ -433,9 +423,12 @@ paint_damage_region (ClutterStageWindow *stage_window,
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)
if (stage_cogl->initialized_redraw_clip &&
stage_cogl->redraw_clip)
{
static CoglPipeline *overlay_red = NULL;
cairo_rectangle_int_t *rects;
int n_rects, i;
if (G_UNLIKELY (overlay_red == NULL))
{
@ -443,12 +436,17 @@ paint_damage_region (ClutterStageWindow *stage_window,
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;
n_rects = cairo_region_num_rectangles (stage_cogl->redraw_clip);
for (i = 0; i < n_rects; i++)
{
cairo_region_get_rectangle (stage_cogl->redraw_clip, i, &rects[i]);
x_1 = rects[i].x;
x_2 = rects[i].x + rects[i].width;
y_1 = rects[i].y;
y_2 = rects[i].y + rects[i].height;
cogl_framebuffer_draw_rectangle (framebuffer, overlay_red, x_1, y_1, x_2, y_2);
cogl_framebuffer_draw_rectangle (framebuffer, overlay_red, x_1, y_1, x_2, y_2);
}
}
cogl_framebuffer_pop_matrix (framebuffer);
@ -519,44 +517,51 @@ swap_framebuffer (ClutterStageWindow *stage_window,
static void
paint_stage (ClutterStageCogl *stage_cogl,
ClutterStageView *view,
const cairo_rectangle_int_t *clip)
cairo_region_t *clip)
{
ClutterStage *stage = stage_cogl->wrapper;
cairo_rectangle_int_t clip_rect;
cairo_region_get_extents (clip, &clip_rect);
_clutter_stage_maybe_setup_viewport (stage, view);
_clutter_stage_paint_view (stage, view, clip);
_clutter_stage_paint_view (stage, view, &clip_rect);
if (clutter_stage_view_get_onscreen (view) !=
clutter_stage_view_get_framebuffer (view))
{
clutter_stage_view_blit_offscreen (view, clip);
clutter_stage_view_blit_offscreen (view, &clip_rect);
}
}
static void
fill_current_damage_history_and_step (ClutterStageView *view)
fill_current_damage_history (ClutterStageView *view,
cairo_region_t *damage)
{
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_rect;
float fb_scale;
cairo_rectangle_int_t *current_fb_damage;
cairo_region_t **current_fb_damage;
current_fb_damage =
&view_priv->damage_history[DAMAGE_HISTORY (view_priv->damage_index)];
clutter_stage_view_get_layout (view, &view_rect);
fb_scale = clutter_stage_view_get_scale (view);
*current_fb_damage = (cairo_rectangle_int_t) {
.x = 0,
.y = 0,
.width = ceilf (view_rect.width * fb_scale),
.height = ceilf (view_rect.height * fb_scale)
};
g_clear_pointer (current_fb_damage, cairo_region_destroy);
*current_fb_damage = cairo_region_copy (damage);
view_priv->damage_index++;
}
static void
fill_current_damage_history_rectangle (ClutterStageView *view,
const cairo_rectangle_int_t *rect)
{
cairo_region_t *damage;
damage = cairo_region_create_rectangle (rect);
fill_current_damage_history (view, damage);
cairo_region_destroy (damage);
}
static void
transform_swap_region_to_onscreen (ClutterStageView *view,
cairo_rectangle_int_t *swap_region)
@ -654,9 +659,11 @@ clutter_stage_cogl_redraw_view (ClutterStageWindow *stage_window,
gboolean do_swap_buffer;
gboolean swap_with_damage;
ClutterActor *wrapper;
cairo_rectangle_int_t redraw_clip;
cairo_region_t *redraw_clip;
cairo_region_t *fb_clip_region;
cairo_rectangle_int_t swap_region;
cairo_rectangle_int_t fb_clip_region;
cairo_rectangle_int_t clip_rect;
cairo_rectangle_int_t redraw_rect;
gboolean clip_region_empty;
float fb_scale;
int subpixel_compensation = 0;
@ -675,20 +682,19 @@ clutter_stage_cogl_redraw_view (ClutterStageWindow *stage_window,
has_buffer_age = cogl_is_onscreen (fb) && is_buffer_age_enabled ();
/* NB: a zero width redraw clip == full stage redraw */
if (stage_cogl->bounding_redraw_clip.width == 0)
/* NB: a NULL redraw clip == full stage redraw */
if (!stage_cogl->redraw_clip)
have_clip = FALSE;
else
{
redraw_clip = stage_cogl->bounding_redraw_clip;
_clutter_util_rectangle_intersection (&redraw_clip,
&view_rect,
&redraw_clip);
cairo_region_t *view_region;
redraw_clip = cairo_region_copy (stage_cogl->redraw_clip);
have_clip = !(redraw_clip.x == view_rect.x &&
redraw_clip.y == view_rect.y &&
redraw_clip.width == view_rect.width &&
redraw_clip.height == view_rect.height);
view_region = cairo_region_create_rectangle (&view_rect);
cairo_region_intersect (redraw_clip, view_region);
have_clip = !cairo_region_equal (redraw_clip, view_region);
cairo_region_destroy (view_region);
}
may_use_clipped_redraw = FALSE;
@ -700,25 +706,51 @@ clutter_stage_cogl_redraw_view (ClutterStageWindow *stage_window,
cogl_onscreen_get_frame_counter (COGL_ONSCREEN (fb)) > 3)
{
graphene_rect_t rect;
cairo_rectangle_int_t *rects;
int n_rects, i;
may_use_clipped_redraw = TRUE;
_clutter_util_rect_from_rectangle (&redraw_clip, &rect);
graphene_rect_offset (&rect, -view_rect.x, -view_rect.y);
scale_and_clamp_rect (&rect, fb_scale, &fb_clip_region);
fb_clip_region = cairo_region_create ();
n_rects = cairo_region_num_rectangles (redraw_clip);
rects = g_new (cairo_rectangle_int_t, n_rects);
for (i = 0; i < n_rects; i++)
{
cairo_rectangle_int_t new_fb_clip_rect;
cairo_region_get_rectangle (redraw_clip, i, &rects[i]);
_clutter_util_rect_from_rectangle (&rects[i], &rect);
graphene_rect_offset (&rect, -view_rect.x, -view_rect.y);
scale_and_clamp_rect (&rect, fb_scale, &new_fb_clip_rect);
cairo_region_union_rectangle (fb_clip_region, &new_fb_clip_rect);
}
g_free (rects);
if (fb_scale != floorf (fb_scale))
{
subpixel_compensation = ceilf (fb_scale);
fb_clip_region.x -= subpixel_compensation;
fb_clip_region.y -= subpixel_compensation;
fb_clip_region.width += 2 * subpixel_compensation;
fb_clip_region.height += 2 * subpixel_compensation;
n_rects = cairo_region_num_rectangles (fb_clip_region);
rects = g_newa (cairo_rectangle_int_t, n_rects);
for (i = 0; i < n_rects; i++)
{
cairo_region_get_rectangle (fb_clip_region, i, &rects[i]);
rects[i].x -= subpixel_compensation;
rects[i].y -= subpixel_compensation;
rects[i].width += 2 * subpixel_compensation;
rects[i].height += 2 * subpixel_compensation;
}
cairo_region_destroy (fb_clip_region);
fb_clip_region = cairo_region_create_rectangles (rects, n_rects);
}
}
else
{
fb_clip_region = (cairo_rectangle_int_t) { 0 };
fb_clip_region = cairo_region_create ();
redraw_clip = cairo_region_reference (fb_clip_region);
}
if (may_use_clipped_redraw &&
@ -727,16 +759,14 @@ clutter_stage_cogl_redraw_view (ClutterStageWindow *stage_window,
else
use_clipped_redraw = FALSE;
clip_region_empty = may_use_clipped_redraw && fb_clip_region.width == 0;
clip_region_empty = may_use_clipped_redraw && cairo_region_is_empty (fb_clip_region);
swap_with_damage = FALSE;
if (has_buffer_age)
{
if (use_clipped_redraw && !clip_region_empty)
{
int age, i;
cairo_rectangle_int_t *current_fb_damage =
&view_priv->damage_history[DAMAGE_HISTORY (view_priv->damage_index++)];
int age;
age = cogl_onscreen_get_buffer_age (COGL_ONSCREEN (fb));
@ -744,57 +774,71 @@ clutter_stage_cogl_redraw_view (ClutterStageWindow *stage_window,
{
graphene_rect_t rect;
cairo_rectangle_int_t damage_region;
cairo_rectangle_int_t *rects;
int n_rects, i;
*current_fb_damage = fb_clip_region;
fill_current_damage_history (view, fb_clip_region);
for (i = 1; i <= age; i++)
{
cairo_rectangle_int_t *fb_damage =
&view_priv->damage_history[DAMAGE_HISTORY (view_priv->damage_index - i - 1)];
_clutter_util_rectangle_union (&fb_clip_region,
fb_damage,
&fb_clip_region);
cairo_region_t *fb_damage =
view_priv->damage_history[DAMAGE_HISTORY (view_priv->damage_index - i - 1)];
cairo_region_union (fb_clip_region, fb_damage);
}
/* Update the bounding redraw clip state with the extra damage. */
_clutter_util_rect_from_rectangle (&fb_clip_region, &rect);
scale_and_clamp_rect (&rect, 1.0f / fb_scale, &damage_region);
_clutter_util_rectangle_offset (&damage_region,
view_rect.x,
view_rect.y,
&damage_region);
_clutter_util_rectangle_union (&stage_cogl->bounding_redraw_clip,
&damage_region,
&stage_cogl->bounding_redraw_clip);
/* Update the redraw clip state with the extra damage. */
n_rects = cairo_region_num_rectangles (fb_clip_region);
rects = g_newa (cairo_rectangle_int_t, n_rects);
for (i = 0; i < n_rects; i++)
{
cairo_region_get_rectangle (fb_clip_region, i, &rects[i]);
_clutter_util_rect_from_rectangle (&rects[i], &rect);
scale_and_clamp_rect (&rect, 1.0f / fb_scale, &damage_region);
_clutter_util_rectangle_offset (&damage_region,
view_rect.x,
view_rect.y,
&damage_region);
cairo_region_union_rectangle (stage_cogl->redraw_clip,
&damage_region);
}
CLUTTER_NOTE (CLIPPING, "Reusing back buffer(age=%d) - repairing region: x=%d, y=%d, width=%d, height=%d\n",
CLUTTER_NOTE (CLIPPING, "Reusing back buffer(age=%d) - repairing region: num rects: %d\n",
age,
fb_clip_region.x,
fb_clip_region.y,
fb_clip_region.width,
fb_clip_region.height);
cairo_region_num_rectangles (fb_clip_region));
swap_with_damage = TRUE;
}
else
{
cairo_rectangle_int_t fb_damage;
CLUTTER_NOTE (CLIPPING, "Invalid back buffer(age=%d): forcing full redraw\n", age);
use_clipped_redraw = FALSE;
*current_fb_damage = (cairo_rectangle_int_t) {
fb_damage = (cairo_rectangle_int_t) {
.x = 0,
.y = 0,
.width = view_rect.width * fb_scale,
.height = view_rect.height * fb_scale
.width = ceilf (view_rect.width * fb_scale),
.height = ceilf (view_rect.height * fb_scale)
};
fill_current_damage_history_rectangle (view, &fb_damage);
}
}
else if (!use_clipped_redraw)
{
fill_current_damage_history_and_step (view);
cairo_rectangle_int_t fb_damage;
fb_damage = (cairo_rectangle_int_t) {
.x = 0,
.y = 0,
.width = ceilf (view_rect.width * fb_scale),
.height = ceilf (view_rect.height * fb_scale)
};
fill_current_damage_history_rectangle (view, &fb_damage);
}
}
cairo_region_get_extents (fb_clip_region, &clip_rect);
cogl_push_framebuffer (fb);
if (use_clipped_redraw && clip_region_empty)
{
@ -802,11 +846,9 @@ clutter_stage_cogl_redraw_view (ClutterStageWindow *stage_window,
}
else if (use_clipped_redraw)
{
graphene_rect_t rect;
cairo_rectangle_int_t scissor_rect;
cairo_rectangle_int_t paint_rect;
calculate_scissor_region (&fb_clip_region,
calculate_scissor_region (&clip_rect,
subpixel_compensation,
fb_width, fb_height,
&scissor_rect);
@ -826,14 +868,8 @@ clutter_stage_cogl_redraw_view (ClutterStageWindow *stage_window,
scissor_rect.width,
scissor_rect.height);
_clutter_util_rect_from_rectangle (&fb_clip_region, &rect);
scale_and_clamp_rect (&rect, 1.0f / fb_scale, &paint_rect);
_clutter_util_rectangle_offset (&paint_rect,
view_rect.x,
view_rect.y,
&paint_rect);
paint_stage (stage_cogl, view, fb_clip_region);
paint_stage (stage_cogl, view, &paint_rect);
cogl_framebuffer_pop_clip (fb);
stage_cogl->using_clipped_redraw = FALSE;
@ -843,16 +879,17 @@ clutter_stage_cogl_redraw_view (ClutterStageWindow *stage_window,
CLUTTER_NOTE (CLIPPING, "Unclipped stage paint\n");
/* If we are trying to debug redraw issues then we want to pass
* the bounding_redraw_clip so it can be visualized */
* the redraw_clip so it can be visualized */
if (G_UNLIKELY (clutter_paint_debug_flags & CLUTTER_DEBUG_DISABLE_CLIPPED_REDRAWS) &&
may_use_clipped_redraw &&
!clip_region_empty)
{
graphene_rect_t rect;
cairo_region_t *paint_region;
cairo_rectangle_int_t scissor_rect;
cairo_rectangle_int_t paint_rect;
calculate_scissor_region (&fb_clip_region,
calculate_scissor_region (&clip_rect,
subpixel_compensation,
fb_width, fb_height,
&scissor_rect);
@ -863,31 +900,41 @@ clutter_stage_cogl_redraw_view (ClutterStageWindow *stage_window,
scissor_rect.width,
scissor_rect.height);
_clutter_util_rect_from_rectangle (&fb_clip_region, &rect);
_clutter_util_rect_from_rectangle (&clip_rect, &rect);
scale_and_clamp_rect (&rect, 1.0f / fb_scale, &paint_rect);
_clutter_util_rectangle_offset (&paint_rect,
view_rect.x,
view_rect.y,
&paint_rect);
paint_stage (stage_cogl, view, &paint_rect);
paint_region = cairo_region_create_rectangle (&paint_rect);
paint_stage (stage_cogl, view, paint_region);
cairo_region_destroy (paint_region);
cogl_framebuffer_pop_clip (fb);
}
else
paint_stage (stage_cogl, view, &view_rect);
{
cairo_region_t *view_region;
view_region = cairo_region_create_rectangle (&view_rect);
paint_stage (stage_cogl, view, view_region);
cairo_region_destroy (view_region);
}
}
cogl_pop_framebuffer ();
cairo_region_get_extents (redraw_clip, &redraw_rect);
if (may_use_clipped_redraw &&
G_UNLIKELY ((clutter_paint_debug_flags & CLUTTER_DEBUG_REDRAWS)))
{
CoglContext *ctx = cogl_framebuffer_get_context (fb);
static CoglPipeline *outline = NULL;
ClutterActor *actor = CLUTTER_ACTOR (wrapper);
float x_1 = redraw_clip.x;
float x_2 = redraw_clip.x + redraw_clip.width;
float y_1 = redraw_clip.y;
float y_2 = redraw_clip.y + redraw_clip.height;
float x_1 = redraw_rect.x;
float x_2 = redraw_rect.x + redraw_rect.width;
float y_1 = redraw_rect.y;
float y_2 = redraw_rect.y + redraw_rect.height;
CoglVertexP2 quad[4] = {
{ x_1, y_1 },
{ x_2, y_1 },
@ -933,7 +980,7 @@ clutter_stage_cogl_redraw_view (ClutterStageWindow *stage_window,
}
else
{
swap_region = fb_clip_region;
cairo_region_get_extents (fb_clip_region, &swap_region);
g_assert (swap_region.width > 0);
do_swap_buffer = TRUE;
}
@ -944,6 +991,11 @@ clutter_stage_cogl_redraw_view (ClutterStageWindow *stage_window,
do_swap_buffer = TRUE;
}
if (redraw_clip)
cairo_region_destroy (redraw_clip);
if (fb_clip_region)
cairo_region_destroy (fb_clip_region);
if (do_swap_buffer)
{
COGL_TRACE_BEGIN_SCOPED (ClutterStageCoglRedrawViewSwapFramebuffer,
@ -998,6 +1050,7 @@ clutter_stage_cogl_redraw (ClutterStageWindow *stage_window)
/* reset the redraw clipping for the next paint... */
stage_cogl->initialized_redraw_clip = FALSE;
g_clear_pointer (&stage_cogl->redraw_clip, cairo_region_destroy);
stage_cogl->frame_count++;
@ -1019,7 +1072,7 @@ clutter_stage_window_iface_init (ClutterStageWindowInterface *iface)
iface->add_redraw_clip = clutter_stage_cogl_add_redraw_clip;
iface->has_redraw_clips = clutter_stage_cogl_has_redraw_clips;
iface->ignoring_redraw_clips = clutter_stage_cogl_ignoring_redraw_clips;
iface->get_redraw_clip_bounds = clutter_stage_cogl_get_redraw_clip_bounds;
iface->get_redraw_clip = clutter_stage_cogl_get_redraw_clip;
iface->redraw = clutter_stage_cogl_redraw;
}

2
clutter/clutter/cogl/clutter-stage-cogl.h
View File

@ -62,7 +62,7 @@ struct _ClutterStageCogl
gint last_sync_delay;
cairo_rectangle_int_t bounding_redraw_clip;
cairo_region_t *redraw_clip;
guint initialized_redraw_clip : 1;