src/renderer-clutter.c

   1 /*
   2  * Geeqie
   3  * (C) 2006 John Ellis
   4  * Copyright (C) 2008 - 2012 The Geeqie Team
   5  *
   6  * Author: John Ellis
   7  * Author: Vladimir Nadvornik
   8  *
   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!
  12  */
  13
  14 #include <stdio.h>
  15 #include <stdlib.h>
  16 #include <string.h>
  17 #include <math.h>
  18
  19 #include "main.h"
  20 #include "pixbuf-renderer.h"
  21 #include "renderer-clutter.h"
  22
  23 #include "intl.h"
  24 #include "layout.h"
  25
  26 #include <gtk/gtk.h>
  27
  28 #ifdef HAVE_CLUTTER
  29
  30 #include <clutter/clutter.h>
  31
  32 #include <clutter-gtk/clutter-gtk.h>
  33
  34
  35
  36 #define GQ_BUILD 1
  37
  38 #ifdef GQ_BUILD
  39 #include "main.h"
  40 #include "pixbuf_util.h"
  41 #include "exif.h"
  42 #else
  43 typedef enum {
  44         EXIF_ORIENTATION_UNKNOWN        = 0,
  45         EXIF_ORIENTATION_TOP_LEFT       = 1,
  46         EXIF_ORIENTATION_TOP_RIGHT      = 2,
  47         EXIF_ORIENTATION_BOTTOM_RIGHT   = 3,
  48         EXIF_ORIENTATION_BOTTOM_LEFT    = 4,
  49         EXIF_ORIENTATION_LEFT_TOP       = 5,
  50         EXIF_ORIENTATION_RIGHT_TOP      = 6,
  51         EXIF_ORIENTATION_RIGHT_BOTTOM   = 7,
  52         EXIF_ORIENTATION_LEFT_BOTTOM    = 8
  53 } ExifOrientationType;
  54 #endif
  55
  56 #define GET_RIGHT_PIXBUF_OFFSET(rc) \
  57         (( (rc->stereo_mode & PR_STEREO_RIGHT) && !(rc->stereo_mode & PR_STEREO_SWAP)) || \
  58          (!(rc->stereo_mode & PR_STEREO_RIGHT) &&  (rc->stereo_mode & PR_STEREO_SWAP)) ?  \
  59           rc->pr->stereo_pixbuf_offset_right : rc->pr->stereo_pixbuf_offset_left )
  60
  61 #define GET_LEFT_PIXBUF_OFFSET(rc) \
  62         ((!(rc->stereo_mode & PR_STEREO_RIGHT) && !(rc->stereo_mode & PR_STEREO_SWAP)) || \
  63          ( (rc->stereo_mode & PR_STEREO_RIGHT) &&  (rc->stereo_mode & PR_STEREO_SWAP)) ?  \
  64           rc->pr->stereo_pixbuf_offset_right : rc->pr->stereo_pixbuf_offset_left )
  65
  66
  67 typedef struct _OverlayData OverlayData;
  68 struct _OverlayData
  69 {
  70         gint id;
  71
  72         GdkPixbuf *pixbuf;
  73         ClutterActor *actor;
  74
  75         gint x;
  76         gint y;
  77
  78         OverlayRendererFlags flags;
  79 };
  80
  81 typedef struct _RendererClutter RendererClutter;
  82
  83 struct _RendererClutter
  84 {
  85         RendererFuncs f;
  86         PixbufRenderer *pr;
  87
  88
  89         gint stereo_mode;
  90         gint stereo_off_x;
  91         gint stereo_off_y;
  92
  93
  94         GList *pending_updates;
  95         gint idle_update;
  96
  97         GList *overlay_list;
  98
  99         GtkWidget *widget; /* widget and stage may be shared with other renderers */
 100         ClutterActor *stage;
 101         ClutterActor *texture;
 102         ClutterActor *group;
 103 };
 104
 105 typedef struct _RendererClutterAreaParam RendererClutterAreaParam;
 106 struct _RendererClutterAreaParam {
 107         RendererClutter *rc;
 108         gint x;
 109         gint y;
 110         gint w;
 111         gint h;
 112 };
 113
 114
 115 static void rc_sync_actor(RendererClutter *rc)
 116 {
 117         PixbufRenderer *pr = rc->pr;
 118         gint anchor_x = 0;
 119         gint anchor_y = 0;
 120
 121         clutter_actor_set_anchor_point(CLUTTER_ACTOR(rc->texture), 0, 0);
 122
 123         printf("scale %d %d\n", rc->pr->width, rc->pr->height);
 124         printf("pos   %d %d\n", rc->pr->x_offset, rc->pr->y_offset);
 125
 126         clutter_actor_set_scale(CLUTTER_ACTOR(rc->texture),
 127                                 (gfloat)pr->width / pr->image_width,
 128                                 (gfloat)pr->height / pr->image_height);
 129
 130         switch (pr->orientation)
 131                 {
 132                 case EXIF_ORIENTATION_TOP_LEFT:
 133                         /* normal  */
 134                         clutter_actor_set_rotation(CLUTTER_ACTOR(rc->texture),
 135                                                 CLUTTER_Z_AXIS,
 136                                                 0, 0, 0, 0);
 137                         clutter_actor_set_rotation(CLUTTER_ACTOR(rc->texture),
 138                                                 CLUTTER_Y_AXIS,
 139                                                 0, 0, 0, 0);
 140                         anchor_x = 0;
 141                         anchor_y = 0;
 142                         break;
 143                 case EXIF_ORIENTATION_TOP_RIGHT:
 144                         /* mirrored */
 145                         clutter_actor_set_rotation(CLUTTER_ACTOR(rc->texture),
 146                                                 CLUTTER_Z_AXIS,
 147                                                 0, 0, 0, 0);
 148                         clutter_actor_set_rotation(CLUTTER_ACTOR(rc->texture),
 149                                                 CLUTTER_Y_AXIS,
 150                                                 180, 0, 0, 0);
 151                         anchor_x = pr->width;
 152                         anchor_y = 0;
 153                         break;
 154                 case EXIF_ORIENTATION_BOTTOM_RIGHT:
 155                         /* upside down */
 156                         clutter_actor_set_rotation(CLUTTER_ACTOR(rc->texture),
 157                                                 CLUTTER_Z_AXIS,
 158                                                 180, 0, 0, 0);
 159                         clutter_actor_set_rotation(CLUTTER_ACTOR(rc->texture),
 160                                                 CLUTTER_Y_AXIS,
 161                                                 0, 0, 0, 0);
 162                         anchor_x = pr->width;
 163                         anchor_y = pr->height;
 164                         break;
 165                 case EXIF_ORIENTATION_BOTTOM_LEFT:
 166                         /* flipped */
 167                         clutter_actor_set_rotation(CLUTTER_ACTOR(rc->texture),
 168                                                 CLUTTER_Z_AXIS,
 169                                                 180, 0, 0, 0);
 170                         clutter_actor_set_rotation(CLUTTER_ACTOR(rc->texture),
 171                                                 CLUTTER_Y_AXIS,
 172                                                 180, 0, 0, 0);
 173                         anchor_x = 0;
 174                         anchor_y = pr->height;
 175                         break;
 176                 case EXIF_ORIENTATION_LEFT_TOP:
 177                         clutter_actor_set_rotation(CLUTTER_ACTOR(rc->texture),
 178                                                 CLUTTER_Z_AXIS,
 179                                                 -90, 0, 0, 0);
 180                         clutter_actor_set_rotation(CLUTTER_ACTOR(rc->texture),
 181                                                 CLUTTER_Y_AXIS,
 182                                                 180, 0, 0, 0);
 183                         anchor_x = 0;
 184                         anchor_y = 0;
 185                         break;
 186                 case EXIF_ORIENTATION_RIGHT_TOP:
 187                         /* rotated -90 (270) */
 188                         clutter_actor_set_rotation(CLUTTER_ACTOR(rc->texture),
 189                                                 CLUTTER_Z_AXIS,
 190                                                 -90, 0, 0, 0);
 191                         clutter_actor_set_rotation(CLUTTER_ACTOR(rc->texture),
 192                                                 CLUTTER_Y_AXIS,
 193                                                 0, 0, 0, 0);
 194                         anchor_x = 0;
 195                         anchor_y = pr->height;
 196                         break;
 197                 case EXIF_ORIENTATION_RIGHT_BOTTOM:
 198                         clutter_actor_set_rotation(CLUTTER_ACTOR(rc->texture),
 199                                                 CLUTTER_Z_AXIS,
 200                                                 90, 0, 0, 0);
 201                         clutter_actor_set_rotation(CLUTTER_ACTOR(rc->texture),
 202                                                 CLUTTER_Y_AXIS,
 203                                                 180, 0, 0, 0);
 204                         anchor_x = pr->width;
 205                         anchor_y = pr->height;
 206                         break;
 207                 case EXIF_ORIENTATION_LEFT_BOTTOM:
 208                         /* rotated 90 */
 209                         clutter_actor_set_rotation(CLUTTER_ACTOR(rc->texture),
 210                                                 CLUTTER_Z_AXIS,
 211                                                 90, 0, 0, 0);
 212                         clutter_actor_set_rotation(CLUTTER_ACTOR(rc->texture),
 213                                                 CLUTTER_Y_AXIS,
 214                                                 0, 0, 0, 0);
 215                         anchor_x = pr->width;
 216                         anchor_y = 0;
 217                         break;
 218                 default:
 219                         /* The other values are out of range */
 220                         break;
 221                 }
 222
 223         clutter_actor_set_position(CLUTTER_ACTOR(rc->texture),
 224                                 pr->x_offset - pr->x_scroll + anchor_x,
 225                                 pr->y_offset - pr->y_scroll + anchor_y);
 226
 227 }
 228
 229
 230 static void renderer_area_clip_add(RendererClutter *rc, gfloat x, gfloat y, gfloat w, gfloat h)
 231 {
 232         PixbufRenderer *pr = rc->pr;
 233         gfloat x2, y2;
 234         gfloat clip_x, clip_y, clip_w, clip_h, clip_x2, clip_y2;
 235
 236         x2 = x + w;
 237         y2 = y + h;
 238
 239         clutter_actor_get_clip(rc->texture, &clip_x, &clip_y, &clip_w, &clip_h);
 240
 241         clip_x2 = clip_x + clip_w;
 242         clip_y2 = clip_y + clip_h;
 243
 244         if (clip_x > x) clip_x = x;
 245         if (clip_x2 < x2) clip_x2 = x2;
 246         if (clip_y > y) clip_y = y;
 247         if (clip_y2 < y2) clip_y2 = y2;
 248
 249         clip_w = clip_x2 - clip_x;
 250         clip_h = clip_y2 - clip_y;
 251
 252         printf("clip %f %f %f %f\n", clip_x, clip_y, clip_w, clip_h);
 253         clutter_actor_set_clip(rc->texture, clip_x, clip_y, clip_w, clip_h);
 254 }
 255
 256 #define MAX_REGION_AREA (32768 * 1024)
 257
 258 static gboolean renderer_area_changed_cb(gpointer data)
 259 {
 260         RendererClutter *rc = (RendererClutter *)data;
 261         PixbufRenderer *pr = rc->pr;
 262
 263         RendererClutterAreaParam *par = rc->pending_updates->data;
 264
 265         gint h = MAX_REGION_AREA / par->w;
 266         if (h == 0) h = 1;
 267         if (h > par->h) h = par->h;
 268
 269
 270         printf("renderer_area_changed_cb %d %d %d %d  (%d)\n", par->x, par->y, par->w, h, par->h);
 271         if (pr->pixbuf)
 272                 {
 273                 CoglHandle texture = clutter_texture_get_cogl_texture(CLUTTER_TEXTURE(rc->texture));
 274
 275                 cogl_texture_set_region(texture,
 276                                         par->x + GET_RIGHT_PIXBUF_OFFSET(rc),
 277                                         par->y,
 278                                         par->x,
 279                                         par->y,
 280                                         par->w,
 281                                         h,
 282                                         par->w,
 283                                         h,
 284                                         gdk_pixbuf_get_has_alpha(pr->pixbuf) ? COGL_PIXEL_FORMAT_RGBA_8888 : COGL_PIXEL_FORMAT_RGB_888,
 285                                         gdk_pixbuf_get_rowstride(pr->pixbuf),
 286                                         gdk_pixbuf_get_pixels(pr->pixbuf));
 287                 }
 288         renderer_area_clip_add(rc, par->x, par->y, par->w, h);
 289
 290
 291         par->y += h;
 292         par->h -= h;
 293
 294         if (par->h == 0)
 295                 {
 296                 rc->pending_updates = g_list_remove(rc->pending_updates, par);
 297                 g_free(par);
 298                 }
 299         if (!rc->pending_updates)
 300                 {
 301                 clutter_actor_queue_redraw(CLUTTER_ACTOR(rc->texture));
 302                 rc->idle_update = 0;
 303                 return FALSE;
 304                 }
 305         return TRUE;
 306 }
 307
 308
 309 static void renderer_area_changed(void *renderer, gint src_x, gint src_y, gint src_w, gint src_h)
 310 {
 311         RendererClutter *rc = (RendererClutter *)renderer;
 312         PixbufRenderer *pr = rc->pr;
 313         RendererClutterAreaParam *par;
 314
 315         gint width = gdk_pixbuf_get_width(pr->pixbuf);
 316         gint height = gdk_pixbuf_get_height(pr->pixbuf);
 317
 318         if (pr->stereo_data == STEREO_PIXBUF_SBS || pr->stereo_data == STEREO_PIXBUF_CROSS)
 319                         {
 320                         width /= 2;
 321                         }
 322
 323         if (!pr_clip_region(src_x, src_y, src_w, src_h,
 324                             GET_RIGHT_PIXBUF_OFFSET(rc), 0, width, height,
 325                             &src_x, &src_y, &src_w, &src_h)) return;
 326
 327         par = g_new0(RendererClutterAreaParam, 1);
 328         par->rc = rc;
 329         par->x = src_x - GET_RIGHT_PIXBUF_OFFSET(rc);
 330         par->y = src_y;
 331         par->w = src_w;
 332         par->h = src_h;
 333         rc->pending_updates = g_list_append(rc->pending_updates, par);
 334         if (!rc->idle_update)
 335                 {
 336                 rc->idle_update = g_idle_add_full(G_PRIORITY_DEFAULT_IDLE, renderer_area_changed_cb, rc, NULL);
 337                 }
 338 }
 339
 340 static void renderer_remove_pending_updates(RendererClutter *rc)
 341 {
 342         if (rc->idle_update) g_idle_remove_by_data(rc);
 343         rc->idle_update = 0;
 344         while (rc->pending_updates)
 345                 {
 346                 RendererClutterAreaParam *par = rc->pending_updates->data;
 347                 rc->pending_updates = g_list_remove(rc->pending_updates, par);
 348                 g_free(par);
 349                 }
 350 }
 351
 352 static void renderer_update_pixbuf(void *renderer, gboolean lazy)
 353 {
 354         RendererClutter *rc = (RendererClutter *)renderer;
 355         PixbufRenderer *pr = rc->pr;
 356
 357         renderer_remove_pending_updates(rc);
 358
 359         if (pr->pixbuf)
 360                 {
 361                 gint width = gdk_pixbuf_get_width(pr->pixbuf);
 362                 gint height = gdk_pixbuf_get_height(pr->pixbuf);
 363
 364                 gint prev_width, prev_height;
 365
 366                 if (pr->stereo_data == STEREO_PIXBUF_SBS || pr->stereo_data == STEREO_PIXBUF_CROSS)
 367                         {
 368                         width /= 2;
 369                         }
 370
 371
 372                 printf("renderer_update_pixbuf\n");
 373                 clutter_texture_get_base_size(CLUTTER_TEXTURE(rc->texture), &prev_width, &prev_height);
 374                 printf("change from %d %d to %d %d\n", prev_width, prev_height, width, height);
 375
 376                 if (width != prev_width || height != prev_height)
 377                         {
 378                         /* FIXME use CoglMaterial with multiple textures for background, color management, anaglyph, ... */
 379                         CoglHandle texture = cogl_texture_new_with_size(width,
 380                                                                         height,
 381                                                                         COGL_TEXTURE_NONE,
 382                                                                         gdk_pixbuf_get_has_alpha(pr->pixbuf) ? COGL_PIXEL_FORMAT_RGBA_8888 : COGL_PIXEL_FORMAT_RGB_888);
 383
 384                         if (texture != COGL_INVALID_HANDLE)
 385                                 {
 386                                 clutter_texture_set_cogl_texture(CLUTTER_TEXTURE(rc->texture), texture);
 387                                 cogl_handle_unref(texture);
 388                                 }
 389                         }
 390                 clutter_actor_set_clip(rc->texture, 0, 0, 0, 0); /* visible area is extended as area_changed events arrive */
 391                 if (!lazy)
 392                         {
 393                         renderer_area_changed(renderer, GET_RIGHT_PIXBUF_OFFSET(rc), 0, width, height);
 394                         }
 395                 }
 396
 397
 398         printf("renderer_update_pixbuf\n");
 399         rc_sync_actor(rc);
 400 }
 401
 402
 403
 404 static void renderer_update_zoom(void *renderer, gboolean lazy)
 405 {
 406         RendererClutter *rc = (RendererClutter *)renderer;
 407         PixbufRenderer *pr = rc->pr;
 408
 409         printf("renderer_update_zoom\n");
 410         rc_sync_actor(rc);
 411 }
 412
 413 static void renderer_invalidate_region(void *renderer, gint x, gint y, gint w, gint h)
 414 {
 415 }
 416
 417 static OverlayData *rc_overlay_find(RendererClutter *rc, gint id)
 418 {
 419         GList *work;
 420
 421         work = rc->overlay_list;
 422         while (work)
 423                 {
 424                 OverlayData *od = work->data;
 425                 work = work->next;
 426
 427                 if (od->id == id) return od;
 428                 }
 429
 430         return NULL;
 431 }
 432
 433 static void rc_overlay_actor_destroy_cb(ClutterActor *actor, gpointer user_data)
 434 {
 435         OverlayData *od = user_data;
 436         od->actor = NULL;
 437 }
 438
 439 static void rc_overlay_free(RendererClutter *rc, OverlayData *od)
 440 {
 441         rc->overlay_list = g_list_remove(rc->overlay_list, od);
 442
 443         if (od->pixbuf) g_object_unref(G_OBJECT(od->pixbuf));
 444         if (od->actor) clutter_actor_destroy(od->actor);
 445         g_free(od);
 446 }
 447
 448 static void rc_overlay_update_position(RendererClutter *rc, OverlayData *od)
 449 {
 450         gint px, py, pw, ph;
 451
 452         pw = gdk_pixbuf_get_width(od->pixbuf);
 453         ph = gdk_pixbuf_get_height(od->pixbuf);
 454         px = od->x;
 455         py = od->y;
 456
 457         if (od->flags & OVL_RELATIVE)
 458                 {
 459                 if (px < 0) px = rc->pr->viewport_width - pw + px;
 460                 if (py < 0) py = rc->pr->viewport_height - ph + py;
 461                 }
 462         if (od->actor) clutter_actor_set_position(od->actor, px, py);
 463 }
 464
 465 static void rc_overlay_update_positions(RendererClutter *rc)
 466 {
 467         GList *work;
 468
 469         work = rc->overlay_list;
 470         while (work)
 471                 {
 472                 OverlayData *od = work->data;
 473                 work = work->next;
 474
 475                 rc_overlay_update_position(rc, od);
 476                 }
 477 }
 478
 479 static void rc_overlay_free_all(RendererClutter *rc)
 480 {
 481         GList *work;
 482
 483         work = rc->overlay_list;
 484         while (work)
 485                 {
 486                 OverlayData *od = work->data;
 487                 work = work->next;
 488
 489                 rc_overlay_free(rc, od);
 490                 }
 491 }
 492
 493
 494 static void renderer_overlay_draw(void *renderer, gint x, gint y, gint w, gint h)
 495 {
 496 }
 497
 498 static gint renderer_overlay_add(void *renderer, GdkPixbuf *pixbuf, gint x, gint y, OverlayRendererFlags flags)
 499 {
 500         RendererClutter *rc = (RendererClutter *)renderer;
 501         PixbufRenderer *pr = rc->pr;
 502         OverlayData *od;
 503         gint id;
 504
 505         g_return_val_if_fail(IS_PIXBUF_RENDERER(pr), -1);
 506         g_return_val_if_fail(pixbuf != NULL, -1);
 507
 508         id = 1;
 509         while (rc_overlay_find(rc, id)) id++;
 510
 511         od = g_new0(OverlayData, 1);
 512         od->id = id;
 513         od->pixbuf = pixbuf;
 514         g_object_ref(G_OBJECT(od->pixbuf));
 515         od->x = x;
 516         od->y = y;
 517         od->flags = flags;
 518
 519         od->actor = gtk_clutter_texture_new();
 520         g_signal_connect (od->actor, "destroy", G_CALLBACK(rc_overlay_actor_destroy_cb), od);
 521
 522         gtk_clutter_texture_set_from_pixbuf(GTK_CLUTTER_TEXTURE (od->actor), pixbuf, NULL);
 523         clutter_container_add_actor(CLUTTER_CONTAINER(rc->group), od->actor);
 524
 525         rc->overlay_list = g_list_append(rc->overlay_list, od);
 526         rc_overlay_update_position(rc, od);
 527
 528         return od->id;
 529 }
 530
 531 static void renderer_overlay_set(void *renderer, gint id, GdkPixbuf *pixbuf, gint x, gint y)
 532 {
 533         RendererClutter *rc = (RendererClutter *)renderer;
 534         PixbufRenderer *pr = rc->pr;
 535         OverlayData *od;
 536
 537         g_return_if_fail(IS_PIXBUF_RENDERER(pr));
 538
 539         od = rc_overlay_find(rc, id);
 540         if (!od) return;
 541
 542         if (pixbuf)
 543                 {
 544                 g_object_ref(G_OBJECT(pixbuf));
 545                 g_object_unref(G_OBJECT(od->pixbuf));
 546                 od->pixbuf = pixbuf;
 547
 548                 od->x = x;
 549                 od->y = y;
 550
 551                 if (od->actor) gtk_clutter_texture_set_from_pixbuf(GTK_CLUTTER_TEXTURE(od->actor), pixbuf, NULL);
 552                 rc_overlay_update_position(rc, od);
 553                 }
 554         else
 555                 {
 556                 rc_overlay_free(rc, od);
 557                 }
 558 }
 559
 560 static gboolean renderer_overlay_get(void *renderer, gint id, GdkPixbuf **pixbuf, gint *x, gint *y)
 561 {
 562         RendererClutter *rc = (RendererClutter *)renderer;
 563
 564         PixbufRenderer *pr = rc->pr;
 565         OverlayData *od;
 566
 567         g_return_val_if_fail(IS_PIXBUF_RENDERER(pr), FALSE);
 568
 569         od = rc_overlay_find(rc, id);
 570         if (!od) return FALSE;
 571
 572         if (pixbuf) *pixbuf = od->pixbuf;
 573         if (x) *x = od->x;
 574         if (y) *y = od->y;
 575
 576         return TRUE;
 577 }
 578
 579
 580 static void renderer_update_sizes(void *renderer)
 581 {
 582         RendererClutter *rc = (RendererClutter *)renderer;
 583         ClutterColor stage_color = { 0x00, 0x00, 0x00, 0xff };
 584
 585         rc->stereo_off_x = 0;
 586         rc->stereo_off_y = 0;
 587
 588         if (rc->stereo_mode & PR_STEREO_RIGHT)
 589                 {
 590                 if (rc->stereo_mode & PR_STEREO_HORIZ)
 591                         {
 592                         rc->stereo_off_x = rc->pr->viewport_width;
 593                         }
 594                 else if (rc->stereo_mode & PR_STEREO_VERT)
 595                         {
 596                         rc->stereo_off_y = rc->pr->viewport_height;
 597                         }
 598                 else if (rc->stereo_mode & PR_STEREO_FIXED)
 599                         {
 600                         rc->stereo_off_x = rc->pr->stereo_fixed_x_right;
 601                         rc->stereo_off_y = rc->pr->stereo_fixed_y_right;
 602                         }
 603                 }
 604         else
 605                 {
 606                 if (rc->stereo_mode & PR_STEREO_FIXED)
 607                         {
 608                         rc->stereo_off_x = rc->pr->stereo_fixed_x_left;
 609                         rc->stereo_off_y = rc->pr->stereo_fixed_y_left;
 610                         }
 611                 }
 612         DEBUG_1("update size: %p  %d %d   %d %d", rc, rc->stereo_off_x, rc->stereo_off_y, rc->pr->viewport_width, rc->pr->viewport_height);
 613
 614         printf("renderer_update_sizes  scale %d %d\n", rc->pr->width, rc->pr->height);
 615
 616         clutter_stage_set_color(CLUTTER_STAGE(rc->stage), &stage_color);
 617
 618
 619         clutter_actor_set_size(rc->group, rc->pr->viewport_width, rc->pr->viewport_height);
 620         clutter_actor_set_position(rc->group, rc->stereo_off_x, rc->stereo_off_y);
 621
 622         clutter_actor_set_rotation(CLUTTER_ACTOR(rc->group),
 623                                                 CLUTTER_Y_AXIS,
 624                                                 (rc->stereo_mode & PR_STEREO_MIRROR) ? 180 : 0,
 625                                                 rc->pr->viewport_width / 2.0, 0, 0);
 626
 627         clutter_actor_set_rotation(CLUTTER_ACTOR(rc->group),
 628                                                 CLUTTER_X_AXIS,
 629                                                 (rc->stereo_mode & PR_STEREO_FLIP) ? 180 : 0,
 630                                                 0, rc->pr->viewport_height / 2.0, 0);
 631
 632         rc_sync_actor(rc);
 633         rc_overlay_update_positions(rc);
 634 }
 635
 636 static void renderer_scroll(void *renderer, gint x_off, gint y_off)
 637 {
 638         printf("renderer_scroll\n");
 639         RendererClutter *rc = (RendererClutter *)renderer;
 640         PixbufRenderer *pr = rc->pr;
 641
 642         rc_sync_actor(rc);
 643 }
 644
 645 static void renderer_stereo_set(void *renderer, gint stereo_mode)
 646 {
 647         RendererClutter *rc = (RendererClutter *)renderer;
 648
 649         rc->stereo_mode = stereo_mode;
 650 }
 651
 652 static void renderer_free(void *renderer)
 653 {
 654         RendererClutter *rc = (RendererClutter *)renderer;
 655         GtkWidget *widget = gtk_bin_get_child(GTK_BIN(rc->pr));
 656
 657         renderer_remove_pending_updates(rc);
 658
 659         rc_overlay_free_all(rc);
 660
 661         if (widget)
 662                 {
 663                 /* widget still exists */
 664                 clutter_actor_destroy(rc->group);
 665                 if (clutter_group_get_n_children(CLUTTER_GROUP(rc->stage)) == 0)
 666                         {
 667                         printf("destroy %p\n", rc->widget);
 668                         /* this was the last user */
 669                         gtk_widget_destroy(rc->widget);
 670                         }
 671                 else
 672                         {
 673                         printf("keep %p\n", rc->widget);
 674                         g_object_unref(G_OBJECT(rc->widget));
 675                         }
 676                 }
 677         g_free(rc);
 678 }
 679
 680 RendererFuncs *renderer_clutter_new(PixbufRenderer *pr)
 681 {
 682         RendererClutter *rc = g_new0(RendererClutter, 1);
 683
 684         rc->pr = pr;
 685
 686         rc->f.area_changed = renderer_area_changed;
 687         rc->f.update_pixbuf = renderer_update_pixbuf;
 688         rc->f.free = renderer_free;
 689         rc->f.update_zoom = renderer_update_zoom;
 690         rc->f.invalidate_region = renderer_invalidate_region;
 691         rc->f.scroll = renderer_scroll;
 692         rc->f.update_sizes = renderer_update_sizes;
 693
 694
 695         rc->f.overlay_add = renderer_overlay_add;
 696         rc->f.overlay_set = renderer_overlay_set;
 697         rc->f.overlay_get = renderer_overlay_get;
 698         rc->f.overlay_draw = renderer_overlay_draw;
 699
 700         rc->f.stereo_set = renderer_stereo_set;
 701
 702
 703         rc->stereo_mode = 0;
 704         rc->stereo_off_x = 0;
 705         rc->stereo_off_y = 0;
 706
 707         rc->idle_update = 0;
 708         rc->pending_updates = NULL;
 709
 710         rc->widget = gtk_bin_get_child(GTK_BIN(rc->pr));
 711
 712         if (rc->widget)
 713                 {
 714                 if (!GTK_CLUTTER_IS_EMBED(rc->widget))
 715                         {
 716                         g_free(rc);
 717                         DEBUG_0("pixbuf renderer has a child of other type than gtk_clutter_embed");
 718                         return NULL;
 719                         }
 720                 }
 721         else
 722                 {
 723                 rc->widget = gtk_clutter_embed_new();
 724                 gtk_container_add(GTK_CONTAINER(rc->pr), rc->widget);
 725                 }
 726
 727         gtk_event_box_set_above_child (GTK_EVENT_BOX(rc->pr), TRUE);
 728         rc->stage = gtk_clutter_embed_get_stage (GTK_CLUTTER_EMBED (rc->widget));
 729
 730         rc->group = clutter_group_new();
 731         clutter_container_add_actor(CLUTTER_CONTAINER(rc->stage), rc->group);
 732         clutter_actor_set_clip_to_allocation(CLUTTER_ACTOR(rc->group), TRUE);
 733
 734         rc->texture = clutter_texture_new ();
 735         clutter_container_add_actor(CLUTTER_CONTAINER(rc->group), rc->texture);
 736         g_object_ref(G_OBJECT(rc->widget));
 737
 738         gtk_widget_show(rc->widget);
 739         return (RendererFuncs *) rc;
 740 }
 741
 742 #endif
 743 /* vim: set shiftwidth=8 softtabstop=0 cindent cinoptions={1s: */