static void
_cairo_qt_surface_set_clip_region (cairo_qt_surface_t *qs,
const cairo_region_t *clip_region)
{
_cairo_surface_clipper_reset (&qs->clipper);
if (clip_region == NULL) {
// How the clip path is reset depends on whether we own p or not
if (qs->pixmap || qs->image) {
// we own p
qs->p->setClipping (false);
} else {
qs->p->restore ();
qs->p->save ();
}
} else {
QRegion qr;
int num_rects = cairo_region_num_rectangles (clip_region);
for (int i = 0; i < num_rects; ++i) {
cairo_rectangle_int_t rect;
cairo_region_get_rectangle (clip_region, i, &rect);
QRect r(rect.x, rect.y, rect.width, rect.height);
qr = qr.unite(r);
}
qs->p->setClipRegion (qr, Qt::IntersectClip);
}
}
void
_clutter_stage_wayland_repaint_region (ClutterStageWayland *stage_wayland,
ClutterStage *stage)
{
ClutterGeometry geom;
cairo_rectangle_int_t rect;
int i, count;
count = cairo_region_num_rectangles (stage_wayland->repaint_region);
for (i = 0; i < count; i++)
{
cairo_region_get_rectangle (stage_wayland->repaint_region, i, &rect);
cogl_clip_push_window_rectangle (rect.x - 1, rect.y - 1,
rect.width + 2, rect.height + 2);
geom.x = rect.x;
geom.y = rect.y;
geom.width = rect.width;
geom.height = rect.height;
/* FIXME: We should pass geom in as second arg, but some actors
* cull themselves a little to much. Disable for now.*/
_clutter_stage_do_paint (stage, NULL);
cogl_clip_pop ();
}
}
void
gimp_display_shell_expose_region (GimpDisplayShell *shell,
cairo_region_t *region)
{
GdkRegion *gdk_region;
gint n_rectangles;
gint i;
g_return_if_fail (GIMP_IS_DISPLAY_SHELL (shell));
g_return_if_fail (region != NULL);
if (! gtk_widget_get_realized (shell->canvas))
return;
gdk_region = gdk_region_new ();
n_rectangles = cairo_region_num_rectangles (region);
for (i = 0; i < n_rectangles; i++)
{
cairo_rectangle_int_t rectangle;
cairo_region_get_rectangle (region, i, &rectangle);
gdk_region_union_with_rect (gdk_region, (GdkRectangle *) &rectangle);
}
gdk_window_invalidate_region (gtk_widget_get_window (shell->canvas),
gdk_region, TRUE);
gdk_region_destroy (gdk_region);
}
// cairo_public int
// cairo_region_num_rectangles (const cairo_region_t *region);
static int l_cairo_region_num_rectangles (lua_State* L)
{
const cairo_region_t *region = get_cairo_region_t (L, 1);
int v = cairo_region_num_rectangles (region);
lua_pushinteger(L, v);
return 1;
}
cairo_region_t *
meta_region_scale_double (cairo_region_t *region,
double scale,
MetaRoundingStrategy rounding_strategy)
{
int n_rects, i;
cairo_rectangle_int_t *rects;
cairo_region_t *scaled_region;
g_return_val_if_fail (scale > 0.0, NULL);
if (scale == 1.0)
return cairo_region_copy (region);
n_rects = cairo_region_num_rectangles (region);
rects = g_malloc (sizeof(cairo_rectangle_int_t) * n_rects);
for (i = 0; i < n_rects; i++)
{
cairo_region_get_rectangle (region, i, &rects[i]);
meta_rectangle_scale_double (&rects[i], scale, rounding_strategy,
&rects[i]);
}
scaled_region = cairo_region_create_rectangles (rects, n_rects);
g_free (rects);
return scaled_region;
}
void
meta_surface_actor_set_frozen (MetaSurfaceActor *self,
gboolean frozen)
{
MetaSurfaceActorPrivate *priv = self->priv;
priv->frozen = frozen;
if (!frozen && priv->pending_damage)
{
int i, n_rects = cairo_region_num_rectangles (priv->pending_damage);
cairo_rectangle_int_t rect;
/* Since we ignore damage events while a window is frozen for certain effects
* we need to apply the tracked damage now. */
for (i = 0; i < n_rects; i++)
{
cairo_region_get_rectangle (priv->pending_damage, i, &rect);
meta_surface_actor_process_damage (self, rect.x, rect.y,
rect.width, rect.height);
}
g_clear_pointer (&priv->pending_damage, cairo_region_destroy);
}
}
static void
_cairo_gl_flush_glyphs (cairo_gl_context_t *ctx,
cairo_gl_glyphs_setup_t *setup)
{
int i;
if (setup->vb != NULL) {
glUnmapBufferARB (GL_ARRAY_BUFFER_ARB);
setup->vb = NULL;
if (setup->num_prims != 0) {
if (setup->clip) {
int num_rectangles = cairo_region_num_rectangles (setup->clip);
glEnable (GL_SCISSOR_TEST);
for (i = 0; i < num_rectangles; i++) {
cairo_rectangle_int_t rect;
cairo_region_get_rectangle (setup->clip, i, &rect);
glScissor (rect.x,
_cairo_gl_y_flip (setup->dst, rect.y),
rect.x + rect.width,
_cairo_gl_y_flip (setup->dst,
rect.y + rect.height));
glDrawArrays (GL_QUADS, 0, 4 * setup->num_prims);
}
glDisable (GL_SCISSOR_TEST);
} else {
glDrawArrays (GL_QUADS, 0, 4 * setup->num_prims);
}
setup->num_prims = 0;
}
}
}
void
_cairo_gl_composite_flush (cairo_gl_context_t *ctx)
{
unsigned int count;
int i;
if (_cairo_gl_context_is_flushed (ctx))
return;
count = ctx->vb_offset / ctx->vertex_size;
_cairo_gl_composite_unmap_vertex_buffer (ctx);
if ( _cairo_array_num_elements (&ctx->tristrip_indices) > 0) {
_cairo_gl_composite_draw_tristrip (ctx);
} else if (ctx->clip_region) {
int i, num_rectangles = cairo_region_num_rectangles (ctx->clip_region);
for (i = 0; i < num_rectangles; i++) {
cairo_rectangle_int_t rect;
cairo_region_get_rectangle (ctx->clip_region, i, &rect);
glScissor (rect.x, rect.y, rect.width, rect.height);
_cairo_gl_composite_draw (ctx, count);
}
} else {
_cairo_gl_composite_draw (ctx, count);
}
for (i = 0; i < ARRAY_LENGTH (&ctx->glyph_cache); i++)
_cairo_gl_glyph_cache_unlock (&ctx->glyph_cache[i]);
}
void
_gdk_x11_region_get_xrectangles (const cairo_region_t *region,
gint x_offset,
gint y_offset,
gint scale,
XRectangle **rects,
gint *n_rects)
{
XRectangle *rectangles;
cairo_rectangle_int_t box;
gint i, n;
n = cairo_region_num_rectangles (region);
rectangles = g_new (XRectangle, n);
for (i = 0; i < n; i++)
{
cairo_region_get_rectangle (region, i, &box);
rectangles[i].x = CLAMP ((box.x + x_offset) * scale, G_MINSHORT, G_MAXSHORT);
rectangles[i].y = CLAMP ((box.y + y_offset) * scale, G_MINSHORT, G_MAXSHORT);
rectangles[i].width = CLAMP (box.width * scale, G_MINSHORT, G_MAXSHORT);
rectangles[i].height = CLAMP (box.height * scale, G_MINSHORT, G_MAXSHORT);
}
*n_rects = n;
*rects = rectangles;
}
static void
blank_region_in_pixbuf (GdkPixbuf *pixbuf, cairo_region_t *region)
{
int n_rects;
int i;
int width, height;
cairo_rectangle_int_t pixbuf_rect;
n_rects = cairo_region_num_rectangles (region);
width = gdk_pixbuf_get_width (pixbuf);
height = gdk_pixbuf_get_height (pixbuf);
pixbuf_rect.x = 0;
pixbuf_rect.y = 0;
pixbuf_rect.width = width;
pixbuf_rect.height = height;
for (i = 0; i < n_rects; i++)
{
cairo_rectangle_int_t rect, dest;
cairo_region_get_rectangle (region, i, &rect);
if (gdk_rectangle_intersect (&rect, &pixbuf_rect, &dest))
blank_rectangle_in_pixbuf (pixbuf, &dest);
}
}
static int _extract_dirty_event(void)
{
int i, n;
mume_event_t event;
mume_rect_t rect;
const cairo_region_t *rgn;
if (!mume_urgnmgr_pop_urgn(_mume_gstate->urgnmgr))
return 0;
rgn = mume_urgnmgr_last_rgn(_mume_gstate->urgnmgr);
n = cairo_region_num_rectangles(rgn);
event.expose.type = MUME_EVENT_EXPOSE;
event.expose.window = (void*)mume_urgnmgr_last_win(
_mume_gstate->urgnmgr);
for (i = 0; i < n; ++i) {
cairo_region_get_rectangle(rgn, i, &rect);
event.expose.x = rect.x;
event.expose.y = rect.y;
event.expose.width = rect.width;
event.expose.height = rect.height;
event.expose.count = n - i - 1;
memcpy(mume_list_data(mume_list_push_back(
_mume_gstate->event_list, sizeof(mume_event_t))),
&event, sizeof(mume_event_t));
}
return 1;
}
static cairo_region_t *
expand_region (cairo_region_t *region,
int x_amount,
int y_amount,
gboolean flip)
{
MetaRegionBuilder builder;
int n;
int i;
meta_region_builder_init (&builder);
n = cairo_region_num_rectangles (region);
for (i = 0; i < n; i++)
{
cairo_rectangle_int_t rect;
cairo_region_get_rectangle (region, i, &rect);
add_expanded_rect (&builder,
rect.x, rect.y, rect.width, rect.height,
x_amount, y_amount, flip);
}
return meta_region_builder_finish (&builder);
}
static gboolean
get_selection_bounds (EvView *view,
EvViewSelection *selection,
gint *start_offset,
gint *end_offset)
{
cairo_rectangle_int_t rect;
gint start, end;
if (!selection->covered_region || cairo_region_is_empty (selection->covered_region))
return FALSE;
cairo_region_get_rectangle (selection->covered_region, 0, &rect);
start = _ev_view_get_caret_cursor_offset_at_doc_point (view,
selection->page,
rect.x / view->scale,
(rect.y + (rect.height / 2)) / view->scale);
if (start == -1)
return FALSE;
cairo_region_get_rectangle (selection->covered_region,
cairo_region_num_rectangles (selection->covered_region) - 1,
&rect);
end = _ev_view_get_caret_cursor_offset_at_doc_point (view,
selection->page,
(rect.x + rect.width) / view->scale,
(rect.y + (rect.height / 2)) / view->scale);
if (end == -1)
return FALSE;
*start_offset = start;
*end_offset = end;
return TRUE;
}
static cairo_surface_t *
ensure_image_surface (cairo_surface_t *surface, const cairo_region_t *region)
{
cairo_rectangle_int_t extents;
cairo_surface_t *image;
cairo_t *cr;
int i, num_rects;
if (cairo_surface_get_type (surface) == CAIRO_SURFACE_TYPE_IMAGE)
return surface;
cairo_region_get_extents (region, &extents);
image = cairo_image_surface_create (CAIRO_FORMAT_RGB24, extents.width, extents.height);
cairo_surface_set_device_offset (image, -extents.x, -extents.y);
cr = cairo_create (image);
cairo_set_source_surface (cr, surface, 0, 0);
cairo_set_operator (cr, CAIRO_OPERATOR_SOURCE);
num_rects = cairo_region_num_rectangles (region);
for (i = 0; i < num_rects; i++) {
cairo_rectangle_int_t rect;
cairo_region_get_rectangle (region, i, &rect);
cairo_rectangle (cr, rect.x, rect.y,
rect.width, rect.height);
}
cairo_fill (cr);
cairo_destroy (cr);
cairo_surface_destroy (surface);
return image;
}
cairo_region_t *
meta_region_transform (cairo_region_t *region,
MetaMonitorTransform transform,
int width,
int height)
{
int n_rects, i;
cairo_rectangle_int_t *rects;
cairo_region_t *transformed_region;
if (transform == META_MONITOR_TRANSFORM_NORMAL)
return cairo_region_copy (region);
n_rects = cairo_region_num_rectangles (region);
rects = g_new0 (cairo_rectangle_int_t, n_rects);
for (i = 0; i < n_rects; i++)
{
cairo_region_get_rectangle (region, i, &rects[i]);
meta_rectangle_transform (&rects[i],
transform,
width,
height,
&rects[i]);
}
transformed_region = cairo_region_create_rectangles (rects, n_rects);
g_free (rects);
return transformed_region;
}
cairo_region_t *
meta_region_scale (cairo_region_t *region, int scale)
{
int n_rects, i;
cairo_rectangle_int_t *rects;
cairo_region_t *scaled_region;
if (scale == 1)
return cairo_region_copy (region);
n_rects = cairo_region_num_rectangles (region);
rects = g_malloc (sizeof(cairo_rectangle_int_t) * n_rects);
for (i = 0; i < n_rects; i++)
{
cairo_region_get_rectangle (region, i, &rects[i]);
rects[i].x *= scale;
rects[i].y *= scale;
rects[i].width *= scale;
rects[i].height *= scale;
}
scaled_region = cairo_region_create_rectangles (rects, n_rects);
g_free (rects);
return scaled_region;
}
static void
mech_surface_wayland_shm_push_update (MechSurface *surface,
const cairo_region_t *region)
{
MechSurfaceWaylandSHM *shm_surface = (MechSurfaceWaylandSHM *) surface;
MechSurfaceWaylandSHMPriv *priv = shm_surface->_priv;
struct wl_surface *wl_surface;
cairo_rectangle_int_t rect;
BufferData *buffer;
gint i;
g_object_get (surface, "wl-surface", &wl_surface, NULL);
buffer = priv->buffers[priv->cur_buffer];
if (wl_surface)
{
for (i = 0; i < cairo_region_num_rectangles (region); i++)
{
cairo_region_get_rectangle (region, i, &rect);
wl_surface_damage (wl_surface, rect.x, rect.y,
rect.width, rect.height);
}
wl_surface_attach (wl_surface, buffer->wl_buffer, priv->tx, priv->ty);
priv->tx = priv->ty = 0;
/* The current buffer is now acquired by the compositor */
buffer->released = FALSE;
}
MECH_SURFACE_CLASS (mech_surface_wayland_shm_parent_class)->push_update (surface, region);
}
static void
meta_surface_actor_pick (ClutterActor *actor,
const ClutterColor *color)
{
MetaSurfaceActor *self = META_SURFACE_ACTOR (actor);
MetaSurfaceActorPrivate *priv =
meta_surface_actor_get_instance_private (self);
ClutterActorIter iter;
ClutterActor *child;
if (!clutter_actor_should_pick_paint (actor))
return;
/* If there is no region then use the regular pick */
if (priv->input_region == NULL)
CLUTTER_ACTOR_CLASS (meta_surface_actor_parent_class)->pick (actor, color);
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;
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;
}
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);
while (clutter_actor_iter_next (&iter, &child))
clutter_actor_paint (child);
}
void mume_cairo_region_to_path(cairo_t *cr, const cairo_region_t *rgn)
{
mume_rect_t r;
int i = cairo_region_num_rectangles(rgn);
while (i-- > 0) {
cairo_region_get_rectangle(rgn, i, &r);
cairo_rectangle(cr, r.x, r.y, r.width, r.height);
}
}
gboolean
byzanz_serialize (GOutputStream * stream,
guint64 msecs,
cairo_surface_t * surface,
const cairo_region_t * region,
GCancellable * cancellable,
GError ** error)
{
guint i, stride;
cairo_rectangle_int_t rect, extents;
guchar *data;
guint32 n;
int y, n_rects;
g_return_val_if_fail (G_IS_OUTPUT_STREAM (stream), FALSE);
g_return_val_if_fail ((surface == NULL) == (region == NULL), FALSE);
g_return_val_if_fail (region == NULL || !cairo_region_is_empty (region), FALSE);
if (!g_output_stream_write_all (stream, &msecs, sizeof (guint64), NULL, cancellable, error))
return FALSE;
if (surface == 0) {
n = 0;
return g_output_stream_write_all (stream, &n, sizeof (guint32), NULL, cancellable, error);
}
n = n_rects = cairo_region_num_rectangles (region);
if (!g_output_stream_write_all (stream, &n, sizeof (guint32), NULL, cancellable, error))
return FALSE;
for (i = 0; i < n; i++) {
gint32 ints[4];
cairo_region_get_rectangle (region, i, &rect);
ints[0] = rect.x, ints[1] = rect.y, ints[2] = rect.width, ints[3] = rect.height;
g_assert (sizeof (ints) == 16);
if (!g_output_stream_write_all (stream, ints, sizeof (ints), NULL, cancellable, error))
return FALSE;
}
stride = cairo_image_surface_get_stride (surface);
cairo_region_get_extents (region, &extents);
for (i = 0; i < n; i++) {
cairo_region_get_rectangle (region, i, &rect);
data = cairo_image_surface_get_data (surface)
+ stride * (rect.y - extents.y)
+ sizeof (guint32) * (rect.x - extents.x);
for (y = 0; y < rect.height; y++) {
if (!g_output_stream_write_all (G_OUTPUT_STREAM (stream), data,
rect.width * sizeof (guint32), NULL, cancellable, error))
return FALSE;
data += stride;
}
}
return TRUE;
}
void mume_dump_region(const cairo_region_t *rgn)
{
int i, num;
mume_rect_t rect;
num = cairo_region_num_rectangles(rgn);
for (i = 0; i < num; ++i) {
cairo_region_get_rectangle(rgn, i, &rect);
mume_debug(("%d, %d, %d, %d\n",
rect.x, rect.y, rect.width, rect.height));
}
}
static cairo_surface_t *
byzanz_recorder_create_snapshot (ByzanzRecorder *recorder, const cairo_region_t *invalid)
{
cairo_rectangle_int_t extents;
cairo_surface_t *surface;
cairo_t *cr;
GSequenceIter *iter;
int i, num_rects;
cairo_region_get_extents (invalid, &extents);
cr = gdk_cairo_create (recorder->window);
surface = cairo_surface_create_similar (cairo_get_target (cr), CAIRO_CONTENT_COLOR,
extents.width, extents.height);
cairo_destroy (cr);
cairo_surface_set_device_offset (surface, -extents.x, -extents.y);
cr = cairo_create (surface);
num_rects = cairo_region_num_rectangles (invalid);
for (i = 0; i < num_rects; i++) {
cairo_rectangle_int_t rect;
cairo_region_get_rectangle (invalid, i, &rect);
cairo_rectangle (cr, rect.x, rect.y,
rect.width, rect.height);
}
cairo_clip (cr);
for (iter = g_sequence_get_begin_iter (recorder->layers);
!g_sequence_iter_is_end (iter);
iter = g_sequence_iter_next (iter)) {
ByzanzLayer *layer = g_sequence_get (iter);
ByzanzLayerClass *klass = BYZANZ_LAYER_GET_CLASS (layer);
cairo_save (cr);
klass->render (layer, cr);
if (cairo_status (cr))
g_critical ("error capturing image: %s", cairo_status_to_string (cairo_status (cr)));
cairo_restore (cr);
}
cairo_destroy (cr);
surface = ensure_image_surface (surface, invalid);
/* adjust device offset here - the layers work in GdkScreen coordinates, the rest
* of the code works in coordinates realtive to the passed in area. */
cairo_surface_set_device_offset (surface,
recorder->area.x - extents.x, recorder->area.y - extents.y);
return surface;
}
mume_rect_t mume_cairo_region_extents(const cairo_region_t *rgn)
{
mume_rect_t r0, r1;
int i = cairo_region_num_rectangles(rgn);
r0 = mume_rect_empty;
while (i-- > 0) {
cairo_region_get_rectangle(rgn, i, &r1);
r0 = mume_rect_union(r0, r1);
}
return r0;
}
static void
blur_rows (cairo_region_t *convolve_region,
int x_offset,
int y_offset,
guchar *buffer,
int buffer_width,
int buffer_height,
int d)
{
int i, j;
int n_rectangles;
guchar *tmp_buffer;
tmp_buffer = g_malloc (buffer_width);
n_rectangles = cairo_region_num_rectangles (convolve_region);
for (i = 0; i < n_rectangles; i++)
{
cairo_rectangle_int_t rect;
cairo_region_get_rectangle (convolve_region, i, &rect);
for (j = y_offset + rect.y; j < y_offset + rect.y + rect.height; j++)
{
guchar *row = buffer + j * buffer_width;
int x0 = x_offset + rect.x;
int x1 = x0 + rect.width;
/* We want to produce a symmetric blur that spreads a pixel
* equally far to the left and right. If d is odd that happens
* naturally, but for d even, we approximate by using a blur
* on either side and then a centered blur of size d + 1.
* (techique also from the SVG specification)
*/
if (d % 2 == 1)
{
blur_xspan (row, tmp_buffer, buffer_width, x0, x1, d, 0);
blur_xspan (row, tmp_buffer, buffer_width, x0, x1, d, 0);
blur_xspan (row, tmp_buffer, buffer_width, x0, x1, d, 0);
}
else
{
blur_xspan (row, tmp_buffer, buffer_width, x0, x1, d, 1);
blur_xspan (row, tmp_buffer, buffer_width, x0, x1, d, -1);
blur_xspan (row, tmp_buffer, buffer_width, x0, x1, d + 1, 0);
}
}
}
g_free (tmp_buffer);
}
JOY_GNUC_HOT
static void
submit(JoyScreen *self)
{
struct Private *priv = GET_PRIVATE(self);
// update cursor
if (priv->cursor && priv->moved) {
GFX3D_Cursor_Position_Set(priv->cursor,
priv->x - priv->x_hot,
priv->y - priv->y_hot);
}
// clear exposed areas of the frame buffer
cairo_region_intersect(priv->expose, priv->area);
for (gint i = 0; i < cairo_region_num_rectangles(priv->expose); ++i) {
cairo_rectangle_int_t rect;
cairo_region_get_rectangle(priv->expose, i, &rect);
GFX3D_Display_ClearAlpha2D(priv->display, NULL,
(gpointer)&rect, 0., 0., 0., 0.);
g_array_append_val(priv->rects, rect);
}
if (priv->rects->len) {
cairo_region_subtract(priv->expose, priv->expose);
#if !CAIRO_HAS_GFX3D_SURFACE
GFX3D_Display_Cache_Flush(priv->display);
#endif // !CAIRO_HAS_GFX3D_SURFACE
GFX3D_NATIVE_Display display =
GFX3D_Display_Get_NATIVE_Display(priv->display);
GFX3D_NATIVE_Surface surface =
GFX3D_Display_FrameBuffer_Get_NATIVE_Surface(
priv->display);
// copy windows to the frame buffer
for (GList *node = g_queue_peek_head_link(priv->windows);
node; node = node->next) {
JoyBubble *window = node->data;
joy_gfx3d_window_submit(window, display, surface,
priv->area);
}
// flip the display
GFX3D_Display_Show_Partial(priv->display,
(gpointer)priv->rects->data,
priv->rects->len, 1);
g_array_set_size(priv->rects, 0);
} else {
if (priv->moved && priv->cursor) {
GFX3D_Display_Show_Ch_Reload(priv->cursor);
}
}
priv->moved = FALSE;
}
void wxRegionIterator::CreateRects( const wxRegion& region )
{
wxDELETEA(m_rects);
m_numRects = 0;
#ifdef __WXGTK3__
cairo_region_t* cairoRegion = region.GetRegion();
if (cairoRegion == NULL)
return;
m_numRects = cairo_region_num_rectangles(cairoRegion);
if (m_numRects)
{
m_rects = new wxRect[m_numRects];
for (int i = 0; i < m_numRects; i++)
{
GdkRectangle gr;
cairo_region_get_rectangle(cairoRegion, i, &gr);
wxRect &wr = m_rects[i];
wr.x = gr.x;
wr.y = gr.y;
wr.width = gr.width;
wr.height = gr.height;
}
}
#else
GdkRegion *gdkregion = region.GetRegion();
if (!gdkregion)
return;
GdkRectangle* gdkrects;
gdk_region_get_rectangles(gdkregion, &gdkrects, &m_numRects);
if (m_numRects)
{
m_rects = new wxRect[m_numRects];
for (int i = 0; i < m_numRects; ++i)
{
GdkRectangle &gr = gdkrects[i];
wxRect &wr = m_rects[i];
wr.x = gr.x;
wr.y = gr.y;
wr.width = gr.width;
wr.height = gr.height;
}
}
g_free( gdkrects );
#endif
}
static void
meta_background_actor_paint (ClutterActor *actor)
{
MetaBackgroundActor *self = META_BACKGROUND_ACTOR (actor);
MetaBackgroundActorPrivate *priv = self->priv;
guint8 opacity = clutter_actor_get_paint_opacity (actor);
guint8 color_component;
int width, height;
meta_screen_get_size (priv->background->screen, &width, &height);
color_component = (int)(0.5 + opacity * priv->dim_factor);
cogl_material_set_color4ub (priv->material,
color_component,
color_component,
color_component,
opacity);
cogl_set_source (priv->material);
if (priv->visible_region)
{
int n_rectangles = cairo_region_num_rectangles (priv->visible_region);
int i;
for (i = 0; i < n_rectangles; i++)
{
cairo_rectangle_int_t rect;
cairo_region_get_rectangle (priv->visible_region, i, &rect);
cogl_rectangle_with_texture_coords (rect.x, rect.y,
rect.x + rect.width, rect.y + rect.height,
rect.x / priv->background->texture_width,
rect.y / priv->background->texture_height,
(rect.x + rect.width) / priv->background->texture_width,
(rect.y + rect.height) / priv->background->texture_height);
}
}
else
{
cogl_rectangle_with_texture_coords (0.0f, 0.0f,
width, height,
0.0f, 0.0f,
width / priv->background->texture_width,
height / priv->background->texture_height);
}
}
cairo_region_t *
meta_region_crop_and_scale (cairo_region_t *region,
ClutterRect *src_rect,
int dst_width,
int dst_height)
{
int n_rects, i;
cairo_rectangle_int_t *rects;
cairo_region_t *viewport_region;
if (src_rect->size.width == dst_width &&
src_rect->size.height == dst_height &&
roundf (src_rect->origin.x) == src_rect->origin.x &&
roundf (src_rect->origin.y) == src_rect->origin.y)
{
viewport_region = cairo_region_copy (region);
if (src_rect->origin.x != 0 || src_rect->origin.y != 0)
{
cairo_region_translate (viewport_region,
(int) src_rect->origin.x,
(int) src_rect->origin.y);
}
return viewport_region;
}
n_rects = cairo_region_num_rectangles (region);
rects = g_new0 (cairo_rectangle_int_t, n_rects);
for (i = 0; i < n_rects; i++)
{
cairo_region_get_rectangle (region, i, &rects[i]);
meta_rectangle_crop_and_scale (&rects[i],
src_rect,
dst_width,
dst_height,
&rects[i]);
}
viewport_region = cairo_region_create_rectangles (rects, n_rects);
g_free (rects);
return viewport_region;
}
static JSBool
num_rectangles_func(JSContext *context,
unsigned argc,
jsval *vp)
{
PRELUDE;
int n_rects;
jsval retval;
if (!gjs_parse_call_args(context, "num_rectangles", "", argv))
return JS_FALSE;
n_rects = cairo_region_num_rectangles(this_region);
retval = INT_TO_JSVAL(n_rects);
argv.rval().set(retval);
RETURN_STATUS;
}
static gboolean
process_shm_buffer_damage (MetaWaylandBuffer *buffer,
CoglTexture *texture,
cairo_region_t *region,
GError **error)
{
struct wl_shm_buffer *shm_buffer;
int i, n_rectangles;
gboolean set_texture_failed = FALSE;
n_rectangles = cairo_region_num_rectangles (region);
shm_buffer = wl_shm_buffer_get (buffer->resource);
wl_shm_buffer_begin_access (shm_buffer);
for (i = 0; i < n_rectangles; i++)
{
const uint8_t *data = wl_shm_buffer_get_data (shm_buffer);
int32_t stride = wl_shm_buffer_get_stride (shm_buffer);
CoglPixelFormat format;
int bpp;
cairo_rectangle_int_t rect;
shm_buffer_get_cogl_pixel_format (shm_buffer, &format, NULL);
bpp = _cogl_pixel_format_get_bytes_per_pixel (format);
cairo_region_get_rectangle (region, i, &rect);
if (!_cogl_texture_set_region (texture,
rect.width, rect.height,
format,
stride,
data + rect.x * bpp + rect.y * stride,
rect.x, rect.y,
0,
error))
{
set_texture_failed = TRUE;
break;
}
}
wl_shm_buffer_end_access (shm_buffer);
return !set_texture_failed;
}