4 * Copyright (C) 2008 - 2012 The Geeqie Team
7 * Author: Vladimir Nadvornik
9 * This software is released under the GNU General Public License (GNU GPL).
10 * Please read the included file COPYING for more information.
11 * This software comes with no warranty of any kind, use at your own risk!
20 #include "pixbuf-renderer.h"
21 #include "renderer-clutter.h"
31 #define COGL_ENABLE_EXPERIMENTAL_API
33 #include <clutter/clutter.h>
35 #include <clutter-gtk/clutter-gtk.h>
43 #include "pixbuf_util.h"
47 EXIF_ORIENTATION_UNKNOWN = 0,
48 EXIF_ORIENTATION_TOP_LEFT = 1,
49 EXIF_ORIENTATION_TOP_RIGHT = 2,
50 EXIF_ORIENTATION_BOTTOM_RIGHT = 3,
51 EXIF_ORIENTATION_BOTTOM_LEFT = 4,
52 EXIF_ORIENTATION_LEFT_TOP = 5,
53 EXIF_ORIENTATION_RIGHT_TOP = 6,
54 EXIF_ORIENTATION_RIGHT_BOTTOM = 7,
55 EXIF_ORIENTATION_LEFT_BOTTOM = 8
56 } ExifOrientationType;
59 #define GET_RIGHT_PIXBUF_OFFSET(rc) \
60 (( (rc->stereo_mode & PR_STEREO_RIGHT) && !(rc->stereo_mode & PR_STEREO_SWAP)) || \
61 (!(rc->stereo_mode & PR_STEREO_RIGHT) && (rc->stereo_mode & PR_STEREO_SWAP)) ? \
62 rc->pr->stereo_pixbuf_offset_right : rc->pr->stereo_pixbuf_offset_left )
64 #define GET_LEFT_PIXBUF_OFFSET(rc) \
65 ((!(rc->stereo_mode & PR_STEREO_RIGHT) && !(rc->stereo_mode & PR_STEREO_SWAP)) || \
66 ( (rc->stereo_mode & PR_STEREO_RIGHT) && (rc->stereo_mode & PR_STEREO_SWAP)) ? \
67 rc->pr->stereo_pixbuf_offset_right : rc->pr->stereo_pixbuf_offset_left )
70 typedef struct _OverlayData OverlayData;
81 OverlayRendererFlags flags;
84 typedef struct _RendererClutter RendererClutter;
86 struct _RendererClutter
97 GList *pending_updates;
102 GtkWidget *widget; /* widget and stage may be shared with other renderers */
104 ClutterActor *texture;
107 gboolean clut_updated;
108 gint64 last_pixbuf_change;
111 typedef struct _RendererClutterAreaParam RendererClutterAreaParam;
112 struct _RendererClutterAreaParam {
122 static void rc_set_shader(CoglHandle material)
127 shader = cogl_create_shader (COGL_SHADER_TYPE_FRAGMENT);
128 cogl_shader_source (shader,
129 "vec3 checker(vec2 texc, vec3 color0, vec3 color1) \n"
131 " if (mod(int(floor(texc.x) + floor(texc.y)), 2) == 0) \n"
137 "uniform sampler2D tex; \n"
138 "uniform sampler3D clut; \n"
139 "uniform float scale; \n"
140 "uniform float offset; \n"
144 " vec3 bg = checker(gl_FragCoord.xy / 16, vec3(0.6, 0.6, 0.6), vec3(0.4, 0.4, 0.4)); \n"
145 " vec4 img4 = texture2D(tex, gl_TexCoord[0].xy); \n"
146 " vec3 img3 = img4.bgr; \n"
147 " img3 = img3 * scale + offset; \n"
148 " img3 = texture3D(clut, img3); \n"
150 " gl_FragColor = vec4(img3 * img4.a + bg * (1.0 - img4.a), 1.0); \n"
153 cogl_shader_compile(shader);
154 gchar *err = cogl_shader_get_info_log(shader);
158 program = cogl_create_program ();
159 cogl_program_attach_shader (program, shader);
160 cogl_handle_unref (shader);
161 cogl_program_link (program);
163 uniform_no = cogl_program_get_uniform_location (program, "tex");
164 cogl_program_set_uniform_1i (program, uniform_no, 0);
166 uniform_no = cogl_program_get_uniform_location (program, "clut");
167 cogl_program_set_uniform_1i (program, uniform_no, 1);
169 uniform_no = cogl_program_get_uniform_location (program, "scale");
170 cogl_program_set_uniform_1f (program, uniform_no, (double) (CLUT_SIZE - 1) / CLUT_SIZE);
172 uniform_no = cogl_program_get_uniform_location (program, "offset");
173 cogl_program_set_uniform_1f (program, uniform_no, 1.0 / (2 * CLUT_SIZE));
175 cogl_material_set_user_program (material, program);
176 cogl_handle_unref (program);
180 static void rc_prepare_post_process_lut(RendererClutter *rc)
182 PixbufRenderer *pr = rc->pr;
183 static guchar clut[CLUT_SIZE * CLUT_SIZE * CLUT_SIZE * 3];
185 GdkPixbuf *tmp_pixbuf;
189 DEBUG_0("%s clut start", get_exec_time());
191 for (r = 0; r < CLUT_SIZE; r++)
193 for (g = 0; g < CLUT_SIZE; g++)
195 for (b = 0; b < CLUT_SIZE; b++)
197 guchar *ptr = clut + ((b * CLUT_SIZE + g) * CLUT_SIZE + r) * 3;
198 ptr[0] = floor ((double) r / (CLUT_SIZE - 1) * 255.0 + 0.5);
199 ptr[1] = floor ((double) g / (CLUT_SIZE - 1) * 255.0 + 0.5);
200 ptr[2] = floor ((double) b / (CLUT_SIZE - 1) * 255.0 + 0.5);
204 tmp_pixbuf = gdk_pixbuf_new_from_data(clut, GDK_COLORSPACE_RGB, FALSE, 8,
205 CLUT_SIZE * CLUT_SIZE,
207 CLUT_SIZE * CLUT_SIZE * 3,
209 if (pr->func_post_process)
211 pr->func_post_process(pr, &tmp_pixbuf, 0, 0, CLUT_SIZE * CLUT_SIZE, CLUT_SIZE, pr->post_process_user_data);
213 g_object_unref(tmp_pixbuf);
215 DEBUG_0("%s clut upload start", get_exec_time());
217 tex3d = cogl_texture_3d_new_from_data(CLUT_SIZE, CLUT_SIZE, CLUT_SIZE,
219 COGL_PIXEL_FORMAT_RGB_888,
220 COGL_PIXEL_FORMAT_RGB_888,
222 CLUT_SIZE * CLUT_SIZE * 3,
225 material = clutter_texture_get_cogl_material(CLUTTER_TEXTURE(rc->texture));
226 cogl_material_set_layer(material, 1, tex3d);
227 cogl_handle_unref(tex3d);
228 DEBUG_0("%s clut end", get_exec_time());
229 rc->clut_updated = TRUE;
234 static void rc_sync_actor(RendererClutter *rc)
236 PixbufRenderer *pr = rc->pr;
240 clutter_actor_set_anchor_point(CLUTTER_ACTOR(rc->texture), 0, 0);
242 DEBUG_0("scale %d %d", rc->pr->width, rc->pr->height);
243 DEBUG_0("pos %d %d", rc->pr->x_offset, rc->pr->y_offset);
245 clutter_actor_set_scale(CLUTTER_ACTOR(rc->texture),
246 (gfloat)pr->width / pr->image_width,
247 (gfloat)pr->height / pr->image_height);
249 switch (pr->orientation)
251 case EXIF_ORIENTATION_TOP_LEFT:
253 clutter_actor_set_rotation(CLUTTER_ACTOR(rc->texture),
256 clutter_actor_set_rotation(CLUTTER_ACTOR(rc->texture),
262 case EXIF_ORIENTATION_TOP_RIGHT:
264 clutter_actor_set_rotation(CLUTTER_ACTOR(rc->texture),
267 clutter_actor_set_rotation(CLUTTER_ACTOR(rc->texture),
270 anchor_x = pr->width;
273 case EXIF_ORIENTATION_BOTTOM_RIGHT:
275 clutter_actor_set_rotation(CLUTTER_ACTOR(rc->texture),
278 clutter_actor_set_rotation(CLUTTER_ACTOR(rc->texture),
281 anchor_x = pr->width;
282 anchor_y = pr->height;
284 case EXIF_ORIENTATION_BOTTOM_LEFT:
286 clutter_actor_set_rotation(CLUTTER_ACTOR(rc->texture),
289 clutter_actor_set_rotation(CLUTTER_ACTOR(rc->texture),
293 anchor_y = pr->height;
295 case EXIF_ORIENTATION_LEFT_TOP:
296 clutter_actor_set_rotation(CLUTTER_ACTOR(rc->texture),
299 clutter_actor_set_rotation(CLUTTER_ACTOR(rc->texture),
305 case EXIF_ORIENTATION_RIGHT_TOP:
306 /* rotated -90 (270) */
307 clutter_actor_set_rotation(CLUTTER_ACTOR(rc->texture),
310 clutter_actor_set_rotation(CLUTTER_ACTOR(rc->texture),
314 anchor_y = pr->height;
316 case EXIF_ORIENTATION_RIGHT_BOTTOM:
317 clutter_actor_set_rotation(CLUTTER_ACTOR(rc->texture),
320 clutter_actor_set_rotation(CLUTTER_ACTOR(rc->texture),
323 anchor_x = pr->width;
324 anchor_y = pr->height;
326 case EXIF_ORIENTATION_LEFT_BOTTOM:
328 clutter_actor_set_rotation(CLUTTER_ACTOR(rc->texture),
331 clutter_actor_set_rotation(CLUTTER_ACTOR(rc->texture),
334 anchor_x = pr->width;
338 /* The other values are out of range */
342 clutter_actor_set_position(CLUTTER_ACTOR(rc->texture),
343 pr->x_offset - pr->x_scroll + anchor_x,
344 pr->y_offset - pr->y_scroll + anchor_y);
349 static void rc_area_clip_add(RendererClutter *rc, gfloat x, gfloat y, gfloat w, gfloat h)
352 gfloat clip_x, clip_y, clip_w, clip_h, clip_x2, clip_y2;
357 clutter_actor_get_clip(rc->texture, &clip_x, &clip_y, &clip_w, &clip_h);
359 clip_x2 = clip_x + clip_w;
360 clip_y2 = clip_y + clip_h;
362 if (clip_x > x) clip_x = x;
363 if (clip_x2 < x2) clip_x2 = x2;
364 if (clip_y > y) clip_y = y;
365 if (clip_y2 < y2) clip_y2 = y2;
367 clip_w = clip_x2 - clip_x;
368 clip_h = clip_y2 - clip_y;
370 clutter_actor_set_clip(rc->texture, clip_x, clip_y, clip_w, clip_h);
373 #define MAX_REGION_AREA (32768 * 1024)
375 static gboolean rc_area_changed_cb(gpointer data);
377 static void rc_schedule_texture_upload(RendererClutter *rc)
379 if (g_get_monotonic_time() - rc->last_pixbuf_change < 50000)
381 /* delay clutter redraw until the texture has some data
382 set priority between gtk redraw and clutter redraw */
383 DEBUG_0("%s tex upload high prio", get_exec_time());
384 rc->idle_update = g_idle_add_full(CLUTTER_PRIORITY_REDRAW - 10, rc_area_changed_cb, rc, NULL);
388 /* higher prio than histogram */
389 DEBUG_0("%s tex upload low prio", get_exec_time());
391 rc->idle_update = g_idle_add_full(G_PRIORITY_DEFAULT_IDLE - 5, rc_area_changed_cb, rc, NULL);
395 static gboolean rc_area_changed_cb(gpointer data)
397 RendererClutter *rc = (RendererClutter *)data;
398 PixbufRenderer *pr = rc->pr;
400 RendererClutterAreaParam *par = rc->pending_updates->data;
402 gint h = MAX_REGION_AREA / par->w;
404 if (h > par->h) h = par->h;
407 DEBUG_0("%s upload start", get_exec_time());
410 CoglHandle texture = clutter_texture_get_cogl_texture(CLUTTER_TEXTURE(rc->texture));
412 cogl_texture_set_region(texture,
413 par->x + GET_RIGHT_PIXBUF_OFFSET(rc),
421 gdk_pixbuf_get_has_alpha(pr->pixbuf) ? COGL_PIXEL_FORMAT_BGRA_8888 : COGL_PIXEL_FORMAT_BGR_888,
422 gdk_pixbuf_get_rowstride(pr->pixbuf),
423 gdk_pixbuf_get_pixels(pr->pixbuf));
425 DEBUG_0("%s upload end", get_exec_time());
426 rc_area_clip_add(rc, par->x, par->y, par->w, h);
434 rc->pending_updates = g_list_remove(rc->pending_updates, par);
437 if (!rc->pending_updates)
439 clutter_actor_queue_redraw(CLUTTER_ACTOR(rc->texture));
442 /* FIXME: find a better place for this */
443 if (!rc->clut_updated) rc_prepare_post_process_lut(rc);
448 rc_schedule_texture_upload(rc);
450 return FALSE; /* it was rescheduled, possibly with different prio */
454 static void rc_area_changed(void *renderer, gint src_x, gint src_y, gint src_w, gint src_h)
456 RendererClutter *rc = (RendererClutter *)renderer;
457 PixbufRenderer *pr = rc->pr;
458 RendererClutterAreaParam *par;
460 gint width = gdk_pixbuf_get_width(pr->pixbuf);
461 gint height = gdk_pixbuf_get_height(pr->pixbuf);
463 if (pr->stereo_data == STEREO_PIXBUF_SBS || pr->stereo_data == STEREO_PIXBUF_CROSS)
468 if (!pr_clip_region(src_x, src_y, src_w, src_h,
469 GET_RIGHT_PIXBUF_OFFSET(rc), 0, width, height,
470 &src_x, &src_y, &src_w, &src_h)) return;
472 par = g_new0(RendererClutterAreaParam, 1);
474 par->x = src_x - GET_RIGHT_PIXBUF_OFFSET(rc);
478 rc->pending_updates = g_list_append(rc->pending_updates, par);
479 if (!rc->idle_update)
481 rc_schedule_texture_upload(rc);
485 static void rc_remove_pending_updates(RendererClutter *rc)
487 if (rc->idle_update) g_idle_remove_by_data(rc);
489 while (rc->pending_updates)
491 RendererClutterAreaParam *par = rc->pending_updates->data;
492 rc->pending_updates = g_list_remove(rc->pending_updates, par);
497 static void rc_update_pixbuf(void *renderer, gboolean lazy)
499 RendererClutter *rc = (RendererClutter *)renderer;
500 PixbufRenderer *pr = rc->pr;
502 DEBUG_0("rc_update_pixbuf");
504 rc_remove_pending_updates(rc);
506 rc->last_pixbuf_change = g_get_monotonic_time();
507 DEBUG_0("%s change time reset", get_exec_time());
511 gint width = gdk_pixbuf_get_width(pr->pixbuf);
512 gint height = gdk_pixbuf_get_height(pr->pixbuf);
514 DEBUG_0("pixbuf size %d x %d (%d)", width, height, gdk_pixbuf_get_has_alpha(pr->pixbuf) ? 32 : 24);
516 gint prev_width, prev_height;
518 if (pr->stereo_data == STEREO_PIXBUF_SBS || pr->stereo_data == STEREO_PIXBUF_CROSS)
524 clutter_texture_get_base_size(CLUTTER_TEXTURE(rc->texture), &prev_width, &prev_height);
526 if (width != prev_width || height != prev_height)
528 /* FIXME use CoglMaterial with multiple textures for background, color management, anaglyph, ... */
529 CoglHandle texture = cogl_texture_new_with_size(width,
531 COGL_TEXTURE_NO_AUTO_MIPMAP,
532 gdk_pixbuf_get_has_alpha(pr->pixbuf) ? COGL_PIXEL_FORMAT_BGRA_8888 : COGL_PIXEL_FORMAT_BGR_888);
534 if (texture != COGL_INVALID_HANDLE)
536 clutter_texture_set_cogl_texture(CLUTTER_TEXTURE(rc->texture), texture);
537 cogl_handle_unref(texture);
540 clutter_actor_set_clip(rc->texture, 0, 0, 0, 0); /* visible area is extended as area_changed events arrive */
543 rc_area_changed(renderer, GET_RIGHT_PIXBUF_OFFSET(rc), 0, width, height);
547 rc->clut_updated = FALSE;
552 static void rc_update_zoom(void *renderer, gboolean lazy)
554 RendererClutter *rc = (RendererClutter *)renderer;
556 DEBUG_0("rc_update_zoom");
560 static void rc_invalidate_region(void *renderer, gint x, gint y, gint w, gint h)
564 static OverlayData *rc_overlay_find(RendererClutter *rc, gint id)
568 work = rc->overlay_list;
571 OverlayData *od = work->data;
574 if (od->id == id) return od;
580 static void rc_overlay_actor_destroy_cb(ClutterActor *actor, gpointer user_data)
582 OverlayData *od = user_data;
586 static void rc_overlay_free(RendererClutter *rc, OverlayData *od)
588 rc->overlay_list = g_list_remove(rc->overlay_list, od);
590 if (od->pixbuf) g_object_unref(G_OBJECT(od->pixbuf));
591 if (od->actor) clutter_actor_destroy(od->actor);
595 static void rc_overlay_update_position(RendererClutter *rc, OverlayData *od)
599 pw = gdk_pixbuf_get_width(od->pixbuf);
600 ph = gdk_pixbuf_get_height(od->pixbuf);
604 if (od->flags & OVL_RELATIVE)
606 if (px < 0) px = rc->pr->viewport_width - pw + px;
607 if (py < 0) py = rc->pr->viewport_height - ph + py;
609 if (od->actor) clutter_actor_set_position(od->actor, px, py);
612 static void rc_overlay_update_positions(RendererClutter *rc)
616 work = rc->overlay_list;
619 OverlayData *od = work->data;
622 rc_overlay_update_position(rc, od);
626 static void rc_overlay_free_all(RendererClutter *rc)
630 work = rc->overlay_list;
633 OverlayData *od = work->data;
636 rc_overlay_free(rc, od);
640 static gint rc_overlay_add(void *renderer, GdkPixbuf *pixbuf, gint x, gint y, OverlayRendererFlags flags)
642 RendererClutter *rc = (RendererClutter *)renderer;
643 PixbufRenderer *pr = rc->pr;
647 g_return_val_if_fail(IS_PIXBUF_RENDERER(pr), -1);
648 g_return_val_if_fail(pixbuf != NULL, -1);
651 while (rc_overlay_find(rc, id)) id++;
653 od = g_new0(OverlayData, 1);
656 g_object_ref(G_OBJECT(od->pixbuf));
661 od->actor = gtk_clutter_texture_new();
662 g_signal_connect (od->actor, "destroy", G_CALLBACK(rc_overlay_actor_destroy_cb), od);
664 gtk_clutter_texture_set_from_pixbuf(GTK_CLUTTER_TEXTURE (od->actor), pixbuf, NULL);
665 clutter_container_add_actor(CLUTTER_CONTAINER(rc->group), od->actor);
667 rc->overlay_list = g_list_append(rc->overlay_list, od);
668 rc_overlay_update_position(rc, od);
673 static void rc_overlay_set(void *renderer, gint id, GdkPixbuf *pixbuf, gint x, gint y)
675 RendererClutter *rc = (RendererClutter *)renderer;
676 PixbufRenderer *pr = rc->pr;
679 g_return_if_fail(IS_PIXBUF_RENDERER(pr));
681 od = rc_overlay_find(rc, id);
686 g_object_ref(G_OBJECT(pixbuf));
687 g_object_unref(G_OBJECT(od->pixbuf));
693 if (od->actor) gtk_clutter_texture_set_from_pixbuf(GTK_CLUTTER_TEXTURE(od->actor), pixbuf, NULL);
694 rc_overlay_update_position(rc, od);
698 rc_overlay_free(rc, od);
702 static gboolean rc_overlay_get(void *renderer, gint id, GdkPixbuf **pixbuf, gint *x, gint *y)
704 RendererClutter *rc = (RendererClutter *)renderer;
706 PixbufRenderer *pr = rc->pr;
709 g_return_val_if_fail(IS_PIXBUF_RENDERER(pr), FALSE);
711 od = rc_overlay_find(rc, id);
712 if (!od) return FALSE;
714 if (pixbuf) *pixbuf = od->pixbuf;
722 static void rc_update_viewport(void *renderer)
724 RendererClutter *rc = (RendererClutter *)renderer;
725 ClutterColor stage_color = { 0x00, 0x00, 0x00, 0xff };
727 rc->stereo_off_x = 0;
728 rc->stereo_off_y = 0;
730 if (rc->stereo_mode & PR_STEREO_RIGHT)
732 if (rc->stereo_mode & PR_STEREO_HORIZ)
734 rc->stereo_off_x = rc->pr->viewport_width;
736 else if (rc->stereo_mode & PR_STEREO_VERT)
738 rc->stereo_off_y = rc->pr->viewport_height;
740 else if (rc->stereo_mode & PR_STEREO_FIXED)
742 rc->stereo_off_x = rc->pr->stereo_fixed_x_right;
743 rc->stereo_off_y = rc->pr->stereo_fixed_y_right;
748 if (rc->stereo_mode & PR_STEREO_FIXED)
750 rc->stereo_off_x = rc->pr->stereo_fixed_x_left;
751 rc->stereo_off_y = rc->pr->stereo_fixed_y_left;
754 DEBUG_0("rc_update_viewport scale %d %d", rc->pr->width, rc->pr->height);
756 clutter_stage_set_color(CLUTTER_STAGE(rc->stage), &stage_color);
759 clutter_actor_set_size(rc->group, rc->pr->viewport_width, rc->pr->viewport_height);
760 clutter_actor_set_position(rc->group, rc->stereo_off_x, rc->stereo_off_y);
762 clutter_actor_set_rotation(CLUTTER_ACTOR(rc->group),
764 (rc->stereo_mode & PR_STEREO_MIRROR) ? 180 : 0,
765 rc->pr->viewport_width / 2.0, 0, 0);
767 clutter_actor_set_rotation(CLUTTER_ACTOR(rc->group),
769 (rc->stereo_mode & PR_STEREO_FLIP) ? 180 : 0,
770 0, rc->pr->viewport_height / 2.0, 0);
773 rc_overlay_update_positions(rc);
776 static void rc_scroll(void *renderer, gint x_off, gint y_off)
778 DEBUG_0("rc_scroll");
779 RendererClutter *rc = (RendererClutter *)renderer;
784 static void rc_stereo_set(void *renderer, gint stereo_mode)
786 RendererClutter *rc = (RendererClutter *)renderer;
788 rc->stereo_mode = stereo_mode;
791 static void rc_free(void *renderer)
793 RendererClutter *rc = (RendererClutter *)renderer;
794 GtkWidget *widget = gtk_bin_get_child(GTK_BIN(rc->pr));
796 rc_remove_pending_updates(rc);
798 rc_overlay_free_all(rc);
802 /* widget still exists */
803 clutter_actor_destroy(rc->group);
804 if (clutter_group_get_n_children(CLUTTER_GROUP(rc->stage)) == 0)
806 DEBUG_1("destroy %p", rc->widget);
807 /* this was the last user */
808 gtk_widget_destroy(rc->widget);
812 DEBUG_1("keep %p", rc->widget);
813 g_object_unref(G_OBJECT(rc->widget));
819 RendererFuncs *renderer_clutter_new(PixbufRenderer *pr)
821 RendererClutter *rc = g_new0(RendererClutter, 1);
825 rc->f.area_changed = rc_area_changed;
826 rc->f.update_pixbuf = rc_update_pixbuf;
827 rc->f.free = rc_free;
828 rc->f.update_zoom = rc_update_zoom;
829 rc->f.invalidate_region = rc_invalidate_region;
830 rc->f.scroll = rc_scroll;
831 rc->f.update_viewport = rc_update_viewport;
834 rc->f.overlay_add = rc_overlay_add;
835 rc->f.overlay_set = rc_overlay_set;
836 rc->f.overlay_get = rc_overlay_get;
838 rc->f.stereo_set = rc_stereo_set;
842 rc->stereo_off_x = 0;
843 rc->stereo_off_y = 0;
846 rc->pending_updates = NULL;
848 rc->widget = gtk_bin_get_child(GTK_BIN(rc->pr));
852 if (!GTK_CLUTTER_IS_EMBED(rc->widget))
855 DEBUG_0("pixbuf renderer has a child of other type than gtk_clutter_embed");
861 rc->widget = gtk_clutter_embed_new();
862 gtk_container_add(GTK_CONTAINER(rc->pr), rc->widget);
865 gtk_event_box_set_above_child (GTK_EVENT_BOX(rc->pr), TRUE);
866 rc->stage = gtk_clutter_embed_get_stage (GTK_CLUTTER_EMBED (rc->widget));
868 rc->group = clutter_group_new();
869 clutter_container_add_actor(CLUTTER_CONTAINER(rc->stage), rc->group);
870 clutter_actor_set_clip_to_allocation(CLUTTER_ACTOR(rc->group), TRUE);
872 rc->texture = clutter_texture_new ();
873 clutter_container_add_actor(CLUTTER_CONTAINER(rc->group), rc->texture);
874 rc_set_shader(clutter_texture_get_cogl_material(CLUTTER_TEXTURE(rc->texture)));
875 g_object_ref(G_OBJECT(rc->widget));
877 gtk_widget_show(rc->widget);
878 return (RendererFuncs *) rc;
882 /* vim: set shiftwidth=8 softtabstop=0 cindent cinoptions={1s: */