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 static void rc_set_shader(CoglHandle material)
 115 {
 116   CoglHandle shader;
 117   CoglHandle program;
 118
 119   shader = cogl_create_shader (COGL_SHADER_TYPE_FRAGMENT);
 120   cogl_shader_source (shader,
 121   "vec3 checker(vec2 texc, vec3 color0, vec3 color1)"
 122   "{"
 123   "  if (mod(int(floor(texc.x) + floor(texc.y)), 2) == 0)"
 124   "    return color0;"
 125   "  else"
 126   "    return color1;"
 127   "}"
 128
 129   "uniform sampler2D tex;"
 130   "void main(void)"
 131   "{"
 132   "    vec3 bg = checker(gl_FragCoord.xy / 16, vec3(0.6, 0.6, 0.6), vec3(0.4, 0.4, 0.4));"
 133   "    vec4 img4 = texture2D(tex, gl_TexCoord[0].xy);"
 134   "    vec3 img3 = img4.rgb;"
 135   "    gl_FragColor = vec4(img3 * img4.a + bg * (1.0 - img4.a), 1.0);"
 136   "}"
 137   );
 138   cogl_shader_compile(shader);
 139   gchar *err = cogl_shader_get_info_log(shader);
 140   printf("%s\n",err);
 141   g_free(err);
 142
 143   program = cogl_create_program ();
 144   cogl_program_attach_shader (program, shader);
 145   cogl_handle_unref (shader);
 146   cogl_program_link (program);
 147
 148   gint uniform_no = cogl_program_get_uniform_location (program, "tex");
 149   cogl_program_set_uniform_1i (program, uniform_no, 0);
 150
 151   cogl_material_set_user_program (material, program);
 152   cogl_handle_unref (program);
 153 }
 154
 155
 156 static void rc_sync_actor(RendererClutter *rc)
 157 {
 158         PixbufRenderer *pr = rc->pr;
 159         gint anchor_x = 0;
 160         gint anchor_y = 0;
 161
 162         clutter_actor_set_anchor_point(CLUTTER_ACTOR(rc->texture), 0, 0);
 163
 164         printf("scale %d %d\n", rc->pr->width, rc->pr->height);
 165         printf("pos   %d %d\n", rc->pr->x_offset, rc->pr->y_offset);
 166
 167         clutter_actor_set_scale(CLUTTER_ACTOR(rc->texture),
 168                                 (gfloat)pr->width / pr->image_width,
 169                                 (gfloat)pr->height / pr->image_height);
 170
 171         switch (pr->orientation)
 172                 {
 173                 case EXIF_ORIENTATION_TOP_LEFT:
 174                         /* normal  */
 175                         clutter_actor_set_rotation(CLUTTER_ACTOR(rc->texture),
 176                                                 CLUTTER_Z_AXIS,
 177                                                 0, 0, 0, 0);
 178                         clutter_actor_set_rotation(CLUTTER_ACTOR(rc->texture),
 179                                                 CLUTTER_Y_AXIS,
 180                                                 0, 0, 0, 0);
 181                         anchor_x = 0;
 182                         anchor_y = 0;
 183                         break;
 184                 case EXIF_ORIENTATION_TOP_RIGHT:
 185                         /* mirrored */
 186                         clutter_actor_set_rotation(CLUTTER_ACTOR(rc->texture),
 187                                                 CLUTTER_Z_AXIS,
 188                                                 0, 0, 0, 0);
 189                         clutter_actor_set_rotation(CLUTTER_ACTOR(rc->texture),
 190                                                 CLUTTER_Y_AXIS,
 191                                                 180, 0, 0, 0);
 192                         anchor_x = pr->width;
 193                         anchor_y = 0;
 194                         break;
 195                 case EXIF_ORIENTATION_BOTTOM_RIGHT:
 196                         /* upside down */
 197                         clutter_actor_set_rotation(CLUTTER_ACTOR(rc->texture),
 198                                                 CLUTTER_Z_AXIS,
 199                                                 180, 0, 0, 0);
 200                         clutter_actor_set_rotation(CLUTTER_ACTOR(rc->texture),
 201                                                 CLUTTER_Y_AXIS,
 202                                                 0, 0, 0, 0);
 203                         anchor_x = pr->width;
 204                         anchor_y = pr->height;
 205                         break;
 206                 case EXIF_ORIENTATION_BOTTOM_LEFT:
 207                         /* flipped */
 208                         clutter_actor_set_rotation(CLUTTER_ACTOR(rc->texture),
 209                                                 CLUTTER_Z_AXIS,
 210                                                 180, 0, 0, 0);
 211                         clutter_actor_set_rotation(CLUTTER_ACTOR(rc->texture),
 212                                                 CLUTTER_Y_AXIS,
 213                                                 180, 0, 0, 0);
 214                         anchor_x = 0;
 215                         anchor_y = pr->height;
 216                         break;
 217                 case EXIF_ORIENTATION_LEFT_TOP:
 218                         clutter_actor_set_rotation(CLUTTER_ACTOR(rc->texture),
 219                                                 CLUTTER_Z_AXIS,
 220                                                 -90, 0, 0, 0);
 221                         clutter_actor_set_rotation(CLUTTER_ACTOR(rc->texture),
 222                                                 CLUTTER_Y_AXIS,
 223                                                 180, 0, 0, 0);
 224                         anchor_x = 0;
 225                         anchor_y = 0;
 226                         break;
 227                 case EXIF_ORIENTATION_RIGHT_TOP:
 228                         /* rotated -90 (270) */
 229                         clutter_actor_set_rotation(CLUTTER_ACTOR(rc->texture),
 230                                                 CLUTTER_Z_AXIS,
 231                                                 -90, 0, 0, 0);
 232                         clutter_actor_set_rotation(CLUTTER_ACTOR(rc->texture),
 233                                                 CLUTTER_Y_AXIS,
 234                                                 0, 0, 0, 0);
 235                         anchor_x = 0;
 236                         anchor_y = pr->height;
 237                         break;
 238                 case EXIF_ORIENTATION_RIGHT_BOTTOM:
 239                         clutter_actor_set_rotation(CLUTTER_ACTOR(rc->texture),
 240                                                 CLUTTER_Z_AXIS,
 241                                                 90, 0, 0, 0);
 242                         clutter_actor_set_rotation(CLUTTER_ACTOR(rc->texture),
 243                                                 CLUTTER_Y_AXIS,
 244                                                 180, 0, 0, 0);
 245                         anchor_x = pr->width;
 246                         anchor_y = pr->height;
 247                         break;
 248                 case EXIF_ORIENTATION_LEFT_BOTTOM:
 249                         /* rotated 90 */
 250                         clutter_actor_set_rotation(CLUTTER_ACTOR(rc->texture),
 251                                                 CLUTTER_Z_AXIS,
 252                                                 90, 0, 0, 0);
 253                         clutter_actor_set_rotation(CLUTTER_ACTOR(rc->texture),
 254                                                 CLUTTER_Y_AXIS,
 255                                                 0, 0, 0, 0);
 256                         anchor_x = pr->width;
 257                         anchor_y = 0;
 258                         break;
 259                 default:
 260                         /* The other values are out of range */
 261                         break;
 262                 }
 263
 264         clutter_actor_set_position(CLUTTER_ACTOR(rc->texture),
 265                                 pr->x_offset - pr->x_scroll + anchor_x,
 266                                 pr->y_offset - pr->y_scroll + anchor_y);
 267
 268 }
 269
 270
 271 static void renderer_area_clip_add(RendererClutter *rc, gfloat x, gfloat y, gfloat w, gfloat h)
 272 {
 273         PixbufRenderer *pr = rc->pr;
 274         gfloat x2, y2;
 275         gfloat clip_x, clip_y, clip_w, clip_h, clip_x2, clip_y2;
 276
 277         x2 = x + w;
 278         y2 = y + h;
 279
 280         clutter_actor_get_clip(rc->texture, &clip_x, &clip_y, &clip_w, &clip_h);
 281
 282         clip_x2 = clip_x + clip_w;
 283         clip_y2 = clip_y + clip_h;
 284
 285         if (clip_x > x) clip_x = x;
 286         if (clip_x2 < x2) clip_x2 = x2;
 287         if (clip_y > y) clip_y = y;
 288         if (clip_y2 < y2) clip_y2 = y2;
 289
 290         clip_w = clip_x2 - clip_x;
 291         clip_h = clip_y2 - clip_y;
 292
 293         printf("clip %f %f %f %f\n", clip_x, clip_y, clip_w, clip_h);
 294         clutter_actor_set_clip(rc->texture, clip_x, clip_y, clip_w, clip_h);
 295 }
 296
 297 #define MAX_REGION_AREA (32768 * 1024)
 298
 299 static gboolean renderer_area_changed_cb(gpointer data)
 300 {
 301         RendererClutter *rc = (RendererClutter *)data;
 302         PixbufRenderer *pr = rc->pr;
 303
 304         RendererClutterAreaParam *par = rc->pending_updates->data;
 305
 306         gint h = MAX_REGION_AREA / par->w;
 307         if (h == 0) h = 1;
 308         if (h > par->h) h = par->h;
 309
 310
 311         printf("renderer_area_changed_cb %d %d %d %d  (%d)\n", par->x, par->y, par->w, h, par->h);
 312         DEBUG_0("%s upload start", get_exec_time());
 313         if (pr->pixbuf)
 314                 {
 315                 CoglHandle texture = clutter_texture_get_cogl_texture(CLUTTER_TEXTURE(rc->texture));
 316
 317                 cogl_texture_set_region(texture,
 318                                         par->x + GET_RIGHT_PIXBUF_OFFSET(rc),
 319                                         par->y,
 320                                         par->x,
 321                                         par->y,
 322                                         par->w,
 323                                         h,
 324                                         par->w,
 325                                         h,
 326                                         gdk_pixbuf_get_has_alpha(pr->pixbuf) ? COGL_PIXEL_FORMAT_RGBA_8888 : COGL_PIXEL_FORMAT_RGB_888,
 327                                         gdk_pixbuf_get_rowstride(pr->pixbuf),
 328                                         gdk_pixbuf_get_pixels(pr->pixbuf));
 329                 }
 330         DEBUG_0("%s upload end", get_exec_time());
 331         renderer_area_clip_add(rc, par->x, par->y, par->w, h);
 332
 333
 334         par->y += h;
 335         par->h -= h;
 336
 337         if (par->h == 0)
 338                 {
 339                 rc->pending_updates = g_list_remove(rc->pending_updates, par);
 340                 g_free(par);
 341                 }
 342         if (!rc->pending_updates)
 343                 {
 344                 clutter_actor_queue_redraw(CLUTTER_ACTOR(rc->texture));
 345                 rc->idle_update = 0;
 346                 return FALSE;
 347                 }
 348         return TRUE;
 349 }
 350
 351
 352 static void renderer_area_changed(void *renderer, gint src_x, gint src_y, gint src_w, gint src_h)
 353 {
 354         RendererClutter *rc = (RendererClutter *)renderer;
 355         PixbufRenderer *pr = rc->pr;
 356         RendererClutterAreaParam *par;
 357
 358         gint width = gdk_pixbuf_get_width(pr->pixbuf);
 359         gint height = gdk_pixbuf_get_height(pr->pixbuf);
 360
 361         if (pr->stereo_data == STEREO_PIXBUF_SBS || pr->stereo_data == STEREO_PIXBUF_CROSS)
 362                         {
 363                         width /= 2;
 364                         }
 365
 366         if (!pr_clip_region(src_x, src_y, src_w, src_h,
 367                             GET_RIGHT_PIXBUF_OFFSET(rc), 0, width, height,
 368                             &src_x, &src_y, &src_w, &src_h)) return;
 369
 370         par = g_new0(RendererClutterAreaParam, 1);
 371         par->rc = rc;
 372         par->x = src_x - GET_RIGHT_PIXBUF_OFFSET(rc);
 373         par->y = src_y;
 374         par->w = src_w;
 375         par->h = src_h;
 376         rc->pending_updates = g_list_append(rc->pending_updates, par);
 377         if (!rc->idle_update)
 378                 {
 379                 rc->idle_update = g_idle_add_full(G_PRIORITY_DEFAULT_IDLE, renderer_area_changed_cb, rc, NULL);
 380                 }
 381 }
 382
 383 static void renderer_remove_pending_updates(RendererClutter *rc)
 384 {
 385         if (rc->idle_update) g_idle_remove_by_data(rc);
 386         rc->idle_update = 0;
 387         while (rc->pending_updates)
 388                 {
 389                 RendererClutterAreaParam *par = rc->pending_updates->data;
 390                 rc->pending_updates = g_list_remove(rc->pending_updates, par);
 391                 g_free(par);
 392                 }
 393 }
 394
 395 static void renderer_update_pixbuf(void *renderer, gboolean lazy)
 396 {
 397         RendererClutter *rc = (RendererClutter *)renderer;
 398         PixbufRenderer *pr = rc->pr;
 399
 400         renderer_remove_pending_updates(rc);
 401
 402         if (pr->pixbuf)
 403                 {
 404                 gint width = gdk_pixbuf_get_width(pr->pixbuf);
 405                 gint height = gdk_pixbuf_get_height(pr->pixbuf);
 406
 407                 gint prev_width, prev_height;
 408
 409                 if (pr->stereo_data == STEREO_PIXBUF_SBS || pr->stereo_data == STEREO_PIXBUF_CROSS)
 410                         {
 411                         width /= 2;
 412                         }
 413
 414
 415                 printf("renderer_update_pixbuf\n");
 416                 clutter_texture_get_base_size(CLUTTER_TEXTURE(rc->texture), &prev_width, &prev_height);
 417                 printf("change from %d %d to %d %d\n", prev_width, prev_height, width, height);
 418
 419                 if (width != prev_width || height != prev_height)
 420                         {
 421                         /* FIXME use CoglMaterial with multiple textures for background, color management, anaglyph, ... */
 422                         CoglHandle texture = cogl_texture_new_with_size(width,
 423                                                                         height,
 424                                                                         COGL_TEXTURE_NO_AUTO_MIPMAP,
 425                                                                         gdk_pixbuf_get_has_alpha(pr->pixbuf) ? COGL_PIXEL_FORMAT_RGBA_8888 : COGL_PIXEL_FORMAT_RGB_888);
 426
 427                         if (texture != COGL_INVALID_HANDLE)
 428                                 {
 429                                 clutter_texture_set_cogl_texture(CLUTTER_TEXTURE(rc->texture), texture);
 430                                 cogl_handle_unref(texture);
 431                                 }
 432                         }
 433                 clutter_actor_set_clip(rc->texture, 0, 0, 0, 0); /* visible area is extended as area_changed events arrive */
 434                 if (!lazy)
 435                         {
 436                         renderer_area_changed(renderer, GET_RIGHT_PIXBUF_OFFSET(rc), 0, width, height);
 437                         }
 438                 }
 439
 440
 441         printf("renderer_update_pixbuf\n");
 442         rc_sync_actor(rc);
 443 }
 444
 445
 446
 447 static void renderer_update_zoom(void *renderer, gboolean lazy)
 448 {
 449         RendererClutter *rc = (RendererClutter *)renderer;
 450         PixbufRenderer *pr = rc->pr;
 451
 452         printf("renderer_update_zoom\n");
 453         rc_sync_actor(rc);
 454 }
 455
 456 static void renderer_invalidate_region(void *renderer, gint x, gint y, gint w, gint h)
 457 {
 458 }
 459
 460 static OverlayData *rc_overlay_find(RendererClutter *rc, gint id)
 461 {
 462         GList *work;
 463
 464         work = rc->overlay_list;
 465         while (work)
 466                 {
 467                 OverlayData *od = work->data;
 468                 work = work->next;
 469
 470                 if (od->id == id) return od;
 471                 }
 472
 473         return NULL;
 474 }
 475
 476 static void rc_overlay_actor_destroy_cb(ClutterActor *actor, gpointer user_data)
 477 {
 478         OverlayData *od = user_data;
 479         od->actor = NULL;
 480 }
 481
 482 static void rc_overlay_free(RendererClutter *rc, OverlayData *od)
 483 {
 484         rc->overlay_list = g_list_remove(rc->overlay_list, od);
 485
 486         if (od->pixbuf) g_object_unref(G_OBJECT(od->pixbuf));
 487         if (od->actor) clutter_actor_destroy(od->actor);
 488         g_free(od);
 489 }
 490
 491 static void rc_overlay_update_position(RendererClutter *rc, OverlayData *od)
 492 {
 493         gint px, py, pw, ph;
 494
 495         pw = gdk_pixbuf_get_width(od->pixbuf);
 496         ph = gdk_pixbuf_get_height(od->pixbuf);
 497         px = od->x;
 498         py = od->y;
 499
 500         if (od->flags & OVL_RELATIVE)
 501                 {
 502                 if (px < 0) px = rc->pr->viewport_width - pw + px;
 503                 if (py < 0) py = rc->pr->viewport_height - ph + py;
 504                 }
 505         if (od->actor) clutter_actor_set_position(od->actor, px, py);
 506 }
 507
 508 static void rc_overlay_update_positions(RendererClutter *rc)
 509 {
 510         GList *work;
 511
 512         work = rc->overlay_list;
 513         while (work)
 514                 {
 515                 OverlayData *od = work->data;
 516                 work = work->next;
 517
 518                 rc_overlay_update_position(rc, od);
 519                 }
 520 }
 521
 522 static void rc_overlay_free_all(RendererClutter *rc)
 523 {
 524         GList *work;
 525
 526         work = rc->overlay_list;
 527         while (work)
 528                 {
 529                 OverlayData *od = work->data;
 530                 work = work->next;
 531
 532                 rc_overlay_free(rc, od);
 533                 }
 534 }
 535
 536
 537 static void renderer_overlay_draw(void *renderer, gint x, gint y, gint w, gint h)
 538 {
 539 }
 540
 541 static gint renderer_overlay_add(void *renderer, GdkPixbuf *pixbuf, gint x, gint y, OverlayRendererFlags flags)
 542 {
 543         RendererClutter *rc = (RendererClutter *)renderer;
 544         PixbufRenderer *pr = rc->pr;
 545         OverlayData *od;
 546         gint id;
 547
 548         g_return_val_if_fail(IS_PIXBUF_RENDERER(pr), -1);
 549         g_return_val_if_fail(pixbuf != NULL, -1);
 550
 551         id = 1;
 552         while (rc_overlay_find(rc, id)) id++;
 553
 554         od = g_new0(OverlayData, 1);
 555         od->id = id;
 556         od->pixbuf = pixbuf;
 557         g_object_ref(G_OBJECT(od->pixbuf));
 558         od->x = x;
 559         od->y = y;
 560         od->flags = flags;
 561
 562         od->actor = gtk_clutter_texture_new();
 563         g_signal_connect (od->actor, "destroy", G_CALLBACK(rc_overlay_actor_destroy_cb), od);
 564
 565         gtk_clutter_texture_set_from_pixbuf(GTK_CLUTTER_TEXTURE (od->actor), pixbuf, NULL);
 566         clutter_container_add_actor(CLUTTER_CONTAINER(rc->group), od->actor);
 567
 568         rc->overlay_list = g_list_append(rc->overlay_list, od);
 569         rc_overlay_update_position(rc, od);
 570
 571         return od->id;
 572 }
 573
 574 static void renderer_overlay_set(void *renderer, gint id, GdkPixbuf *pixbuf, gint x, gint y)
 575 {
 576         RendererClutter *rc = (RendererClutter *)renderer;
 577         PixbufRenderer *pr = rc->pr;
 578         OverlayData *od;
 579
 580         g_return_if_fail(IS_PIXBUF_RENDERER(pr));
 581
 582         od = rc_overlay_find(rc, id);
 583         if (!od) return;
 584
 585         if (pixbuf)
 586                 {
 587                 g_object_ref(G_OBJECT(pixbuf));
 588                 g_object_unref(G_OBJECT(od->pixbuf));
 589                 od->pixbuf = pixbuf;
 590
 591                 od->x = x;
 592                 od->y = y;
 593
 594                 if (od->actor) gtk_clutter_texture_set_from_pixbuf(GTK_CLUTTER_TEXTURE(od->actor), pixbuf, NULL);
 595                 rc_overlay_update_position(rc, od);
 596                 }
 597         else
 598                 {
 599                 rc_overlay_free(rc, od);
 600                 }
 601 }
 602
 603 static gboolean renderer_overlay_get(void *renderer, gint id, GdkPixbuf **pixbuf, gint *x, gint *y)
 604 {
 605         RendererClutter *rc = (RendererClutter *)renderer;
 606
 607         PixbufRenderer *pr = rc->pr;
 608         OverlayData *od;
 609
 610         g_return_val_if_fail(IS_PIXBUF_RENDERER(pr), FALSE);
 611
 612         od = rc_overlay_find(rc, id);
 613         if (!od) return FALSE;
 614
 615         if (pixbuf) *pixbuf = od->pixbuf;
 616         if (x) *x = od->x;
 617         if (y) *y = od->y;
 618
 619         return TRUE;
 620 }
 621
 622
 623 static void renderer_update_sizes(void *renderer)
 624 {
 625         RendererClutter *rc = (RendererClutter *)renderer;
 626         ClutterColor stage_color = { 0x00, 0x00, 0x00, 0xff };
 627
 628         rc->stereo_off_x = 0;
 629         rc->stereo_off_y = 0;
 630
 631         if (rc->stereo_mode & PR_STEREO_RIGHT)
 632                 {
 633                 if (rc->stereo_mode & PR_STEREO_HORIZ)
 634                         {
 635                         rc->stereo_off_x = rc->pr->viewport_width;
 636                         }
 637                 else if (rc->stereo_mode & PR_STEREO_VERT)
 638                         {
 639                         rc->stereo_off_y = rc->pr->viewport_height;
 640                         }
 641                 else if (rc->stereo_mode & PR_STEREO_FIXED)
 642                         {
 643                         rc->stereo_off_x = rc->pr->stereo_fixed_x_right;
 644                         rc->stereo_off_y = rc->pr->stereo_fixed_y_right;
 645                         }
 646                 }
 647         else
 648                 {
 649                 if (rc->stereo_mode & PR_STEREO_FIXED)
 650                         {
 651                         rc->stereo_off_x = rc->pr->stereo_fixed_x_left;
 652                         rc->stereo_off_y = rc->pr->stereo_fixed_y_left;
 653                         }
 654                 }
 655         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);
 656
 657         printf("renderer_update_sizes  scale %d %d\n", rc->pr->width, rc->pr->height);
 658
 659         clutter_stage_set_color(CLUTTER_STAGE(rc->stage), &stage_color);
 660
 661
 662         clutter_actor_set_size(rc->group, rc->pr->viewport_width, rc->pr->viewport_height);
 663         clutter_actor_set_position(rc->group, rc->stereo_off_x, rc->stereo_off_y);
 664
 665         clutter_actor_set_rotation(CLUTTER_ACTOR(rc->group),
 666                                                 CLUTTER_Y_AXIS,
 667                                                 (rc->stereo_mode & PR_STEREO_MIRROR) ? 180 : 0,
 668                                                 rc->pr->viewport_width / 2.0, 0, 0);
 669
 670         clutter_actor_set_rotation(CLUTTER_ACTOR(rc->group),
 671                                                 CLUTTER_X_AXIS,
 672                                                 (rc->stereo_mode & PR_STEREO_FLIP) ? 180 : 0,
 673                                                 0, rc->pr->viewport_height / 2.0, 0);
 674
 675         rc_sync_actor(rc);
 676         rc_overlay_update_positions(rc);
 677 }
 678
 679 static void renderer_scroll(void *renderer, gint x_off, gint y_off)
 680 {
 681         printf("renderer_scroll\n");
 682         RendererClutter *rc = (RendererClutter *)renderer;
 683         PixbufRenderer *pr = rc->pr;
 684
 685         rc_sync_actor(rc);
 686 }
 687
 688 static void renderer_stereo_set(void *renderer, gint stereo_mode)
 689 {
 690         RendererClutter *rc = (RendererClutter *)renderer;
 691
 692         rc->stereo_mode = stereo_mode;
 693 }
 694
 695 static void renderer_free(void *renderer)
 696 {
 697         RendererClutter *rc = (RendererClutter *)renderer;
 698         GtkWidget *widget = gtk_bin_get_child(GTK_BIN(rc->pr));
 699
 700         renderer_remove_pending_updates(rc);
 701
 702         rc_overlay_free_all(rc);
 703
 704         if (widget)
 705                 {
 706                 /* widget still exists */
 707                 clutter_actor_destroy(rc->group);
 708                 if (clutter_group_get_n_children(CLUTTER_GROUP(rc->stage)) == 0)
 709                         {
 710                         printf("destroy %p\n", rc->widget);
 711                         /* this was the last user */
 712                         gtk_widget_destroy(rc->widget);
 713                         }
 714                 else
 715                         {
 716                         printf("keep %p\n", rc->widget);
 717                         g_object_unref(G_OBJECT(rc->widget));
 718                         }
 719                 }
 720         g_free(rc);
 721 }
 722
 723 RendererFuncs *renderer_clutter_new(PixbufRenderer *pr)
 724 {
 725         RendererClutter *rc = g_new0(RendererClutter, 1);
 726
 727         rc->pr = pr;
 728
 729         rc->f.area_changed = renderer_area_changed;
 730         rc->f.update_pixbuf = renderer_update_pixbuf;
 731         rc->f.free = renderer_free;
 732         rc->f.update_zoom = renderer_update_zoom;
 733         rc->f.invalidate_region = renderer_invalidate_region;
 734         rc->f.scroll = renderer_scroll;
 735         rc->f.update_sizes = renderer_update_sizes;
 736
 737
 738         rc->f.overlay_add = renderer_overlay_add;
 739         rc->f.overlay_set = renderer_overlay_set;
 740         rc->f.overlay_get = renderer_overlay_get;
 741         rc->f.overlay_draw = renderer_overlay_draw;
 742
 743         rc->f.stereo_set = renderer_stereo_set;
 744
 745
 746         rc->stereo_mode = 0;
 747         rc->stereo_off_x = 0;
 748         rc->stereo_off_y = 0;
 749
 750         rc->idle_update = 0;
 751         rc->pending_updates = NULL;
 752
 753         rc->widget = gtk_bin_get_child(GTK_BIN(rc->pr));
 754
 755         if (rc->widget)
 756                 {
 757                 if (!GTK_CLUTTER_IS_EMBED(rc->widget))
 758                         {
 759                         g_free(rc);
 760                         DEBUG_0("pixbuf renderer has a child of other type than gtk_clutter_embed");
 761                         return NULL;
 762                         }
 763                 }
 764         else
 765                 {
 766                 rc->widget = gtk_clutter_embed_new();
 767                 gtk_container_add(GTK_CONTAINER(rc->pr), rc->widget);
 768                 }
 769
 770         gtk_event_box_set_above_child (GTK_EVENT_BOX(rc->pr), TRUE);
 771         rc->stage = gtk_clutter_embed_get_stage (GTK_CLUTTER_EMBED (rc->widget));
 772
 773         rc->group = clutter_group_new();
 774         clutter_container_add_actor(CLUTTER_CONTAINER(rc->stage), rc->group);
 775         clutter_actor_set_clip_to_allocation(CLUTTER_ACTOR(rc->group), TRUE);
 776
 777         rc->texture = clutter_texture_new ();
 778         clutter_container_add_actor(CLUTTER_CONTAINER(rc->group), rc->texture);
 779         rc_set_shader(clutter_texture_get_cogl_material(rc->texture));
 780         g_object_ref(G_OBJECT(rc->widget));
 781
 782         gtk_widget_show(rc->widget);
 783         return (RendererFuncs *) rc;
 784 }
 785
 786 #endif
 787 /* vim: set shiftwidth=8 softtabstop=0 cindent cinoptions={1s: */