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 /* for 3d texture */
  31 #define COGL_ENABLE_EXPERIMENTAL_API
  32 #define CLUTTER_ENABLE_EXPERIMENTAL_API
  33
  34 #include <clutter/clutter.h>
  35
  36 #include <clutter-gtk/clutter-gtk.h>
  37
  38
  39
  40 #define GQ_BUILD 1
  41
  42 #ifdef GQ_BUILD
  43 #include "main.h"
  44 #include "pixbuf_util.h"
  45 #include "exif.h"
  46 #else
  47 typedef enum {
  48         EXIF_ORIENTATION_UNKNOWN        = 0,
  49         EXIF_ORIENTATION_TOP_LEFT       = 1,
  50         EXIF_ORIENTATION_TOP_RIGHT      = 2,
  51         EXIF_ORIENTATION_BOTTOM_RIGHT   = 3,
  52         EXIF_ORIENTATION_BOTTOM_LEFT    = 4,
  53         EXIF_ORIENTATION_LEFT_TOP       = 5,
  54         EXIF_ORIENTATION_RIGHT_TOP      = 6,
  55         EXIF_ORIENTATION_RIGHT_BOTTOM   = 7,
  56         EXIF_ORIENTATION_LEFT_BOTTOM    = 8
  57 } ExifOrientationType;
  58 #endif
  59
  60 #define GET_RIGHT_PIXBUF_OFFSET(rc) \
  61         (( (rc->stereo_mode & PR_STEREO_RIGHT) && !(rc->stereo_mode & PR_STEREO_SWAP)) || \
  62          (!(rc->stereo_mode & PR_STEREO_RIGHT) &&  (rc->stereo_mode & PR_STEREO_SWAP)) ?  \
  63           rc->pr->stereo_pixbuf_offset_right : rc->pr->stereo_pixbuf_offset_left )
  64
  65 #define GET_LEFT_PIXBUF_OFFSET(rc) \
  66         ((!(rc->stereo_mode & PR_STEREO_RIGHT) && !(rc->stereo_mode & PR_STEREO_SWAP)) || \
  67          ( (rc->stereo_mode & PR_STEREO_RIGHT) &&  (rc->stereo_mode & PR_STEREO_SWAP)) ?  \
  68           rc->pr->stereo_pixbuf_offset_right : rc->pr->stereo_pixbuf_offset_left )
  69
  70
  71 typedef struct _OverlayData OverlayData;
  72 struct _OverlayData
  73 {
  74         gint id;
  75
  76         GdkPixbuf *pixbuf;
  77         ClutterActor *actor;
  78
  79         gint x;
  80         gint y;
  81
  82         OverlayRendererFlags flags;
  83 };
  84
  85 typedef struct _RendererClutter RendererClutter;
  86
  87 struct _RendererClutter
  88 {
  89         RendererFuncs f;
  90         PixbufRenderer *pr;
  91
  92
  93         gint stereo_mode;
  94         gint stereo_off_x;
  95         gint stereo_off_y;
  96
  97
  98         GList *pending_updates;
  99         gint idle_update;
 100
 101         GList *overlay_list;
 102
 103         GtkWidget *widget; /* widget and stage may be shared with other renderers */
 104         ClutterActor *stage;
 105         ClutterActor *texture;
 106         ClutterActor *group;
 107
 108         gboolean clut_updated;
 109         gint64 last_pixbuf_change;
 110 };
 111
 112 typedef struct _RendererClutterAreaParam RendererClutterAreaParam;
 113 struct _RendererClutterAreaParam {
 114         RendererClutter *rc;
 115         gint x;
 116         gint y;
 117         gint w;
 118         gint h;
 119 };
 120
 121 #define CLUT_SIZE       32
 122
 123 static void rc_set_shader(CoglHandle material)
 124 {
 125   CoglHandle shader;
 126   CoglHandle program;
 127   gint uniform_no;
 128   shader = cogl_create_shader (COGL_SHADER_TYPE_FRAGMENT);
 129   cogl_shader_source (shader,
 130   "vec3 checker(vec2 texc, vec3 color0, vec3 color1)                                            \n"
 131   "{                                                                                            \n"
 132   "  if (mod(floor(texc.x) + floor(texc.y), 2.0) == 0.0)                                        \n"
 133   "    return color0;                                                                           \n"
 134   "  else                                                                                       \n"
 135   "    return color1;                                                                           \n"
 136   "}                                                                                            \n"
 137   "                                                                                             \n"
 138   "uniform sampler2D tex;                                                                       \n"
 139   "uniform sampler3D clut;                                                                      \n"
 140   "uniform float scale;                                                                         \n"
 141   "uniform float offset;                                                                        \n"
 142   "                                                                                             \n"
 143   "void main(void)                                                                              \n"
 144   "{                                                                                            \n"
 145   "    vec3 bg = checker(gl_FragCoord.xy / 16.0, vec3(0.6, 0.6, 0.6), vec3(0.4, 0.4, 0.4));     \n"
 146   "    vec4 img4 = texture2D(tex, gl_TexCoord[0].xy);                                           \n"
 147   "    vec3 img3 = img4.bgr;                                                                    \n"
 148   "    img3 = img3 * scale + offset;                                                            \n"
 149   "    img3 = texture3D(clut, img3).rgb;                                                                \n"
 150   "                                                                                             \n"
 151   "    gl_FragColor = vec4(img3 * img4.a + bg * (1.0 - img4.a), 1.0);                           \n"
 152   "}                                                                                            \n"
 153   );
 154   cogl_shader_compile(shader);
 155   gchar *err = cogl_shader_get_info_log(shader);
 156   DEBUG_0("%s\n",err);
 157   g_free(err);
 158
 159   program = cogl_create_program ();
 160   cogl_program_attach_shader (program, shader);
 161   cogl_handle_unref (shader);
 162   cogl_program_link (program);
 163
 164   uniform_no = cogl_program_get_uniform_location (program, "tex");
 165   cogl_program_set_uniform_1i (program, uniform_no, 0);
 166
 167   uniform_no = cogl_program_get_uniform_location (program, "clut");
 168   cogl_program_set_uniform_1i (program, uniform_no, 1);
 169
 170   uniform_no = cogl_program_get_uniform_location (program, "scale");
 171   cogl_program_set_uniform_1f (program, uniform_no, (double) (CLUT_SIZE - 1) / CLUT_SIZE);
 172
 173   uniform_no = cogl_program_get_uniform_location (program, "offset");
 174   cogl_program_set_uniform_1f (program, uniform_no, 1.0 / (2 * CLUT_SIZE));
 175
 176   cogl_material_set_user_program (material, program);
 177   cogl_handle_unref (program);
 178 }
 179
 180
 181 static void rc_prepare_post_process_lut(RendererClutter *rc)
 182 {
 183         PixbufRenderer *pr = rc->pr;
 184         static guchar clut[CLUT_SIZE * CLUT_SIZE * CLUT_SIZE * 3];
 185         guint r, g, b;
 186         GdkPixbuf *tmp_pixbuf;
 187         CoglHandle material;
 188         CoglHandle tex3d;
 189
 190         DEBUG_0("%s clut start", get_exec_time());
 191
 192         for (r = 0; r < CLUT_SIZE; r++)
 193                 {
 194                 for (g = 0; g < CLUT_SIZE; g++)
 195                         {
 196                         for (b = 0; b < CLUT_SIZE; b++)
 197                                 {
 198                                 guchar *ptr = clut + ((b * CLUT_SIZE + g) * CLUT_SIZE + r) * 3;
 199                                 ptr[0] = floor ((double) r / (CLUT_SIZE - 1) * 255.0 + 0.5);
 200                                 ptr[1] = floor ((double) g / (CLUT_SIZE - 1) * 255.0 + 0.5);
 201                                 ptr[2] = floor ((double) b / (CLUT_SIZE - 1) * 255.0 + 0.5);
 202                                 }
 203                         }
 204                 }
 205         tmp_pixbuf = gdk_pixbuf_new_from_data(clut, GDK_COLORSPACE_RGB, FALSE, 8,
 206                                               CLUT_SIZE * CLUT_SIZE,
 207                                               CLUT_SIZE,
 208                                               CLUT_SIZE * CLUT_SIZE * 3,
 209                                               NULL, NULL);
 210         if (pr->func_post_process)
 211                 {
 212                 pr->func_post_process(pr, &tmp_pixbuf, 0, 0, CLUT_SIZE * CLUT_SIZE, CLUT_SIZE, pr->post_process_user_data);
 213                 }
 214         g_object_unref(tmp_pixbuf);
 215
 216         DEBUG_0("%s clut upload start", get_exec_time());
 217 #if CLUTTER_CHECK_VERSION(1,10,0)
 218         {
 219         CoglContext *ctx = clutter_backend_get_cogl_context(clutter_get_default_backend ());
 220
 221         tex3d = cogl_texture_3d_new_from_data(ctx,
 222                                               CLUT_SIZE, CLUT_SIZE, CLUT_SIZE,
 223                                               COGL_PIXEL_FORMAT_RGB_888,
 224                                               COGL_PIXEL_FORMAT_RGB_888,
 225                                               CLUT_SIZE * 3,
 226                                               CLUT_SIZE * CLUT_SIZE * 3,
 227                                               clut,
 228                                               NULL);
 229         }
 230 #else
 231         tex3d = cogl_texture_3d_new_from_data(CLUT_SIZE, CLUT_SIZE, CLUT_SIZE,
 232                                               COGL_TEXTURE_NONE,
 233                                               COGL_PIXEL_FORMAT_RGB_888,
 234                                               COGL_PIXEL_FORMAT_RGB_888,
 235                                               CLUT_SIZE * 3,
 236                                               CLUT_SIZE * CLUT_SIZE * 3,
 237                                               clut,
 238                                               NULL);
 239 #endif
 240         material = clutter_texture_get_cogl_material(CLUTTER_TEXTURE(rc->texture));
 241         cogl_material_set_layer(material, 1, tex3d);
 242         cogl_handle_unref(tex3d);
 243         DEBUG_0("%s clut end", get_exec_time());
 244         rc->clut_updated = TRUE;
 245 }
 246
 247
 248
 249 static void rc_sync_actor(RendererClutter *rc)
 250 {
 251         PixbufRenderer *pr = rc->pr;
 252         gint anchor_x = 0;
 253         gint anchor_y = 0;
 254         gint rot_z = 0;
 255         gint rot_y = 0;
 256
 257         clutter_actor_set_anchor_point(CLUTTER_ACTOR(rc->texture), 0, 0);
 258
 259         DEBUG_0("scale %d %d", rc->pr->width, rc->pr->height);
 260         DEBUG_0("pos   %d %d", rc->pr->x_offset, rc->pr->y_offset);
 261
 262         clutter_actor_set_scale(CLUTTER_ACTOR(rc->texture),
 263                                 (gfloat)pr->width / pr->image_width,
 264                                 (gfloat)pr->height / pr->image_height);
 265
 266         switch (pr->orientation)
 267                 {
 268                 case EXIF_ORIENTATION_TOP_LEFT:
 269                         /* 1 - Horizontal (normal)  */
 270                         break;
 271                 case EXIF_ORIENTATION_TOP_RIGHT:
 272                         /* 2 - Mirror horizontal */
 273                         rot_y = 180;
 274                         anchor_x = pr->width;
 275                         break;
 276                 case EXIF_ORIENTATION_BOTTOM_RIGHT:
 277                         /* 3 - Rotate 180 */
 278                         rot_z = 180;
 279                         anchor_x = pr->width;
 280                         anchor_y = pr->height;
 281                         break;
 282                 case EXIF_ORIENTATION_BOTTOM_LEFT:
 283                         /* 4 - Mirror vertical */
 284                         rot_z = 180;
 285                         rot_y = 180;
 286                         anchor_y = pr->height;
 287                         break;
 288                 case EXIF_ORIENTATION_LEFT_TOP:
 289                         /* 5 - Mirror horizontal and rotate 270 CW */
 290                         rot_z = 270;
 291                         rot_y = 180;
 292                         break;
 293                 case EXIF_ORIENTATION_RIGHT_TOP:
 294                         /* 6 - Rotate 90 CW */
 295                         rot_z = 90;
 296                         anchor_x = pr->width;
 297                         break;
 298                 case EXIF_ORIENTATION_RIGHT_BOTTOM:
 299                         /* 7 - Mirror horizontal and rotate 90 CW */
 300                         rot_z = 90;
 301                         rot_y = 180;
 302                         anchor_x = pr->width;
 303                         anchor_y = pr->height;
 304                         break;
 305                 case EXIF_ORIENTATION_LEFT_BOTTOM:
 306                         /* 8 - Rotate 270 CW */
 307                         rot_z = 270;
 308                         anchor_y = pr->height;
 309                         break;
 310                 default:
 311                         /* The other values are out of range */
 312                         break;
 313                 }
 314
 315         clutter_actor_set_rotation(     CLUTTER_ACTOR(rc->texture),
 316                                                                 CLUTTER_Z_AXIS,
 317                                                                 rot_z, 0, 0, 0);
 318         clutter_actor_set_rotation(     CLUTTER_ACTOR(rc->texture),
 319                                                                 CLUTTER_Y_AXIS,
 320                                                                 rot_y, 0, 0, 0);
 321
 322         clutter_actor_set_position(CLUTTER_ACTOR(rc->texture),
 323                                 pr->x_offset - pr->x_scroll + anchor_x,
 324                                 pr->y_offset - pr->y_scroll + anchor_y);
 325
 326 }
 327
 328
 329 static void rc_area_clip_add(RendererClutter *rc, gfloat x, gfloat y, gfloat w, gfloat h)
 330 {
 331         gfloat x2, y2;
 332         gfloat clip_x, clip_y, clip_w, clip_h, clip_x2, clip_y2;
 333
 334         x2 = x + w;
 335         y2 = y + h;
 336
 337         clutter_actor_get_clip(rc->texture, &clip_x, &clip_y, &clip_w, &clip_h);
 338
 339         clip_x2 = clip_x + clip_w;
 340         clip_y2 = clip_y + clip_h;
 341
 342         if (clip_x > x) clip_x = x;
 343         if (clip_x2 < x2) clip_x2 = x2;
 344         if (clip_y > y) clip_y = y;
 345         if (clip_y2 < y2) clip_y2 = y2;
 346
 347         clip_w = clip_x2 - clip_x;
 348         clip_h = clip_y2 - clip_y;
 349
 350         clutter_actor_set_clip(rc->texture, clip_x, clip_y, clip_w, clip_h);
 351 }
 352
 353 #define MAX_REGION_AREA (32768 * 1024)
 354
 355 static gboolean rc_area_changed_cb(gpointer data);
 356
 357 static void rc_schedule_texture_upload(RendererClutter *rc)
 358 {
 359         if (g_get_monotonic_time() - rc->last_pixbuf_change < 50000)
 360                 {
 361                 /* delay clutter redraw until the texture has some data
 362                    set priority between gtk redraw and clutter redraw */
 363                 DEBUG_0("%s tex upload high prio", get_exec_time());
 364                 rc->idle_update = g_idle_add_full(CLUTTER_PRIORITY_REDRAW - 10, rc_area_changed_cb, rc, NULL);
 365                 }
 366         else
 367                 {
 368                 /* higher prio than histogram */
 369                 DEBUG_0("%s tex upload low prio", get_exec_time());
 370
 371                 rc->idle_update = g_idle_add_full(G_PRIORITY_DEFAULT_IDLE - 5, rc_area_changed_cb, rc, NULL);
 372                 }
 373 }
 374
 375 static gboolean rc_area_changed_cb(gpointer data)
 376 {
 377         RendererClutter *rc = (RendererClutter *)data;
 378         PixbufRenderer *pr = rc->pr;
 379
 380         RendererClutterAreaParam *par = rc->pending_updates->data;
 381
 382         gint h = MAX_REGION_AREA / par->w;
 383         if (h == 0) h = 1;
 384         if (h > par->h) h = par->h;
 385
 386
 387         DEBUG_0("%s upload start", get_exec_time());
 388         if (pr->pixbuf)
 389                 {
 390                 CoglHandle texture = clutter_texture_get_cogl_texture(CLUTTER_TEXTURE(rc->texture));
 391
 392                 cogl_texture_set_region(texture,
 393                                         par->x + GET_RIGHT_PIXBUF_OFFSET(rc),
 394                                         par->y,
 395                                         par->x,
 396                                         par->y,
 397                                         par->w,
 398                                         h,
 399                                         par->w,
 400                                         h,
 401                                         gdk_pixbuf_get_has_alpha(pr->pixbuf) ? COGL_PIXEL_FORMAT_BGRA_8888 : COGL_PIXEL_FORMAT_BGR_888,
 402                                         gdk_pixbuf_get_rowstride(pr->pixbuf),
 403                                         gdk_pixbuf_get_pixels(pr->pixbuf));
 404                 }
 405         DEBUG_0("%s upload end", get_exec_time());
 406         rc_area_clip_add(rc, par->x, par->y, par->w, h);
 407
 408
 409         par->y += h;
 410         par->h -= h;
 411
 412         if (par->h == 0)
 413                 {
 414                 rc->pending_updates = g_list_remove(rc->pending_updates, par);
 415                 g_free(par);
 416                 }
 417         if (!rc->pending_updates)
 418                 {
 419                 clutter_actor_queue_redraw(CLUTTER_ACTOR(rc->texture));
 420                 rc->idle_update = 0;
 421
 422                 /* FIXME: find a better place for this */
 423                 if (!rc->clut_updated) rc_prepare_post_process_lut(rc);
 424
 425                 return FALSE;
 426                 }
 427
 428         rc_schedule_texture_upload(rc);
 429
 430         return FALSE; /* it was rescheduled, possibly with different prio */
 431 }
 432
 433
 434 static void rc_area_changed(void *renderer, gint src_x, gint src_y, gint src_w, gint src_h)
 435 {
 436         RendererClutter *rc = (RendererClutter *)renderer;
 437         PixbufRenderer *pr = rc->pr;
 438         RendererClutterAreaParam *par;
 439
 440         gint width = gdk_pixbuf_get_width(pr->pixbuf);
 441         gint height = gdk_pixbuf_get_height(pr->pixbuf);
 442
 443         if (pr->stereo_data == STEREO_PIXBUF_SBS || pr->stereo_data == STEREO_PIXBUF_CROSS)
 444                         {
 445                         width /= 2;
 446                         }
 447
 448         if (!pr_clip_region(src_x, src_y, src_w, src_h,
 449                             GET_RIGHT_PIXBUF_OFFSET(rc), 0, width, height,
 450                             &src_x, &src_y, &src_w, &src_h)) return;
 451
 452         par = g_new0(RendererClutterAreaParam, 1);
 453         par->rc = rc;
 454         par->x = src_x - GET_RIGHT_PIXBUF_OFFSET(rc);
 455         par->y = src_y;
 456         par->w = src_w;
 457         par->h = src_h;
 458         rc->pending_updates = g_list_append(rc->pending_updates, par);
 459         if (!rc->idle_update)
 460                 {
 461                 rc_schedule_texture_upload(rc);
 462                 }
 463 }
 464
 465 static void rc_remove_pending_updates(RendererClutter *rc)
 466 {
 467         if (rc->idle_update) g_idle_remove_by_data(rc);
 468         rc->idle_update = 0;
 469         while (rc->pending_updates)
 470                 {
 471                 RendererClutterAreaParam *par = rc->pending_updates->data;
 472                 rc->pending_updates = g_list_remove(rc->pending_updates, par);
 473                 g_free(par);
 474                 }
 475 }
 476
 477 static void rc_update_pixbuf(void *renderer, gboolean lazy)
 478 {
 479         RendererClutter *rc = (RendererClutter *)renderer;
 480         PixbufRenderer *pr = rc->pr;
 481
 482         DEBUG_0("rc_update_pixbuf");
 483
 484         rc_remove_pending_updates(rc);
 485
 486         rc->last_pixbuf_change = g_get_monotonic_time();
 487         DEBUG_0("%s change time reset", get_exec_time());
 488
 489         if (pr->pixbuf)
 490                 {
 491                 gint width = gdk_pixbuf_get_width(pr->pixbuf);
 492                 gint height = gdk_pixbuf_get_height(pr->pixbuf);
 493
 494                 DEBUG_0("pixbuf size %d x %d (%d)", width, height, gdk_pixbuf_get_has_alpha(pr->pixbuf) ? 32 : 24);
 495
 496                 gint prev_width, prev_height;
 497
 498                 if (pr->stereo_data == STEREO_PIXBUF_SBS || pr->stereo_data == STEREO_PIXBUF_CROSS)
 499                         {
 500                         width /= 2;
 501                         }
 502
 503
 504                 clutter_texture_get_base_size(CLUTTER_TEXTURE(rc->texture), &prev_width, &prev_height);
 505
 506                 if (width != prev_width || height != prev_height)
 507                         {
 508                         /* FIXME use CoglMaterial with multiple textures for background, color management, anaglyph, ... */
 509                         CoglHandle texture = cogl_texture_new_with_size(width,
 510                                                                         height,
 511                                                                         COGL_TEXTURE_NO_AUTO_MIPMAP | COGL_TEXTURE_NO_SLICING,
 512                                                                         gdk_pixbuf_get_has_alpha(pr->pixbuf) ? COGL_PIXEL_FORMAT_BGRA_8888 : COGL_PIXEL_FORMAT_BGR_888);
 513
 514                         if (texture != COGL_INVALID_HANDLE)
 515                                 {
 516                                 clutter_texture_set_cogl_texture(CLUTTER_TEXTURE(rc->texture), texture);
 517                                 cogl_handle_unref(texture);
 518                                 }
 519                         }
 520                 clutter_actor_set_clip(rc->texture, 0, 0, 0, 0); /* visible area is extended as area_changed events arrive */
 521                 if (!lazy)
 522                         {
 523                         rc_area_changed(renderer, GET_RIGHT_PIXBUF_OFFSET(rc), 0, width, height);
 524                         }
 525                 }
 526
 527         rc->clut_updated = FALSE;
 528 }
 529
 530
 531
 532 static void rc_update_zoom(void *renderer, gboolean lazy)
 533 {
 534         RendererClutter *rc = (RendererClutter *)renderer;
 535
 536         DEBUG_0("rc_update_zoom");
 537         rc_sync_actor(rc);
 538 }
 539
 540 static void rc_invalidate_region(void *renderer, gint x, gint y, gint w, gint h)
 541 {
 542 }
 543
 544 static OverlayData *rc_overlay_find(RendererClutter *rc, gint id)
 545 {
 546         GList *work;
 547
 548         work = rc->overlay_list;
 549         while (work)
 550                 {
 551                 OverlayData *od = work->data;
 552                 work = work->next;
 553
 554                 if (od->id == id) return od;
 555                 }
 556
 557         return NULL;
 558 }
 559
 560 static void rc_overlay_actor_destroy_cb(ClutterActor *actor, gpointer user_data)
 561 {
 562         OverlayData *od = user_data;
 563         od->actor = NULL;
 564 }
 565
 566 static void rc_overlay_free(RendererClutter *rc, OverlayData *od)
 567 {
 568         rc->overlay_list = g_list_remove(rc->overlay_list, od);
 569
 570         if (od->pixbuf) g_object_unref(G_OBJECT(od->pixbuf));
 571         if (od->actor) clutter_actor_destroy(od->actor);
 572         g_free(od);
 573 }
 574
 575 static void rc_overlay_update_position(RendererClutter *rc, OverlayData *od)
 576 {
 577         gint px, py, pw, ph;
 578
 579         pw = gdk_pixbuf_get_width(od->pixbuf);
 580         ph = gdk_pixbuf_get_height(od->pixbuf);
 581         px = od->x;
 582         py = od->y;
 583
 584         if (od->flags & OVL_RELATIVE)
 585                 {
 586                 if (px < 0) px = rc->pr->viewport_width - pw + px;
 587                 if (py < 0) py = rc->pr->viewport_height - ph + py;
 588                 }
 589         if (od->actor) clutter_actor_set_position(od->actor, px, py);
 590 }
 591
 592 static void rc_overlay_update_positions(RendererClutter *rc)
 593 {
 594         GList *work;
 595
 596         work = rc->overlay_list;
 597         while (work)
 598                 {
 599                 OverlayData *od = work->data;
 600                 work = work->next;
 601
 602                 rc_overlay_update_position(rc, od);
 603                 }
 604 }
 605
 606 static void rc_overlay_free_all(RendererClutter *rc)
 607 {
 608         GList *work;
 609
 610         work = rc->overlay_list;
 611         while (work)
 612                 {
 613                 OverlayData *od = work->data;
 614                 work = work->next;
 615
 616                 rc_overlay_free(rc, od);
 617                 }
 618 }
 619
 620 static gint rc_overlay_add(void *renderer, GdkPixbuf *pixbuf, gint x, gint y, OverlayRendererFlags flags)
 621 {
 622         RendererClutter *rc = (RendererClutter *)renderer;
 623         PixbufRenderer *pr = rc->pr;
 624         OverlayData *od;
 625         gint id;
 626
 627         g_return_val_if_fail(IS_PIXBUF_RENDERER(pr), -1);
 628         g_return_val_if_fail(pixbuf != NULL, -1);
 629
 630         id = 1;
 631         while (rc_overlay_find(rc, id)) id++;
 632
 633         od = g_new0(OverlayData, 1);
 634         od->id = id;
 635         od->pixbuf = pixbuf;
 636         g_object_ref(G_OBJECT(od->pixbuf));
 637         od->x = x;
 638         od->y = y;
 639         od->flags = flags;
 640
 641         od->actor = gtk_clutter_texture_new();
 642         g_signal_connect (od->actor, "destroy", G_CALLBACK(rc_overlay_actor_destroy_cb), od);
 643
 644         gtk_clutter_texture_set_from_pixbuf(GTK_CLUTTER_TEXTURE (od->actor), pixbuf, NULL);
 645         clutter_container_add_actor(CLUTTER_CONTAINER(rc->group), od->actor);
 646
 647         rc->overlay_list = g_list_append(rc->overlay_list, od);
 648         rc_overlay_update_position(rc, od);
 649
 650         return od->id;
 651 }
 652
 653 static void rc_overlay_set(void *renderer, gint id, GdkPixbuf *pixbuf, gint x, gint y)
 654 {
 655         RendererClutter *rc = (RendererClutter *)renderer;
 656         PixbufRenderer *pr = rc->pr;
 657         OverlayData *od;
 658
 659         g_return_if_fail(IS_PIXBUF_RENDERER(pr));
 660
 661         od = rc_overlay_find(rc, id);
 662         if (!od) return;
 663
 664         if (pixbuf)
 665                 {
 666                 g_object_ref(G_OBJECT(pixbuf));
 667                 g_object_unref(G_OBJECT(od->pixbuf));
 668                 od->pixbuf = pixbuf;
 669
 670                 od->x = x;
 671                 od->y = y;
 672
 673                 if (od->actor) gtk_clutter_texture_set_from_pixbuf(GTK_CLUTTER_TEXTURE(od->actor), pixbuf, NULL);
 674                 rc_overlay_update_position(rc, od);
 675                 }
 676         else
 677                 {
 678                 rc_overlay_free(rc, od);
 679                 }
 680 }
 681
 682 static gboolean rc_overlay_get(void *renderer, gint id, GdkPixbuf **pixbuf, gint *x, gint *y)
 683 {
 684         RendererClutter *rc = (RendererClutter *)renderer;
 685
 686         PixbufRenderer *pr = rc->pr;
 687         OverlayData *od;
 688
 689         g_return_val_if_fail(IS_PIXBUF_RENDERER(pr), FALSE);
 690
 691         od = rc_overlay_find(rc, id);
 692         if (!od) return FALSE;
 693
 694         if (pixbuf) *pixbuf = od->pixbuf;
 695         if (x) *x = od->x;
 696         if (y) *y = od->y;
 697
 698         return TRUE;
 699 }
 700
 701
 702 static void rc_update_viewport(void *renderer)
 703 {
 704         RendererClutter *rc = (RendererClutter *)renderer;
 705         ClutterColor stage_color = { 0x00, 0x00, 0x00, 0xff };
 706
 707         rc->stereo_off_x = 0;
 708         rc->stereo_off_y = 0;
 709
 710         if (rc->stereo_mode & PR_STEREO_RIGHT)
 711                 {
 712                 if (rc->stereo_mode & PR_STEREO_HORIZ)
 713                         {
 714                         rc->stereo_off_x = rc->pr->viewport_width;
 715                         }
 716                 else if (rc->stereo_mode & PR_STEREO_VERT)
 717                         {
 718                         rc->stereo_off_y = rc->pr->viewport_height;
 719                         }
 720                 else if (rc->stereo_mode & PR_STEREO_FIXED)
 721                         {
 722                         rc->stereo_off_x = rc->pr->stereo_fixed_x_right;
 723                         rc->stereo_off_y = rc->pr->stereo_fixed_y_right;
 724                         }
 725                 }
 726         else
 727                 {
 728                 if (rc->stereo_mode & PR_STEREO_FIXED)
 729                         {
 730                         rc->stereo_off_x = rc->pr->stereo_fixed_x_left;
 731                         rc->stereo_off_y = rc->pr->stereo_fixed_y_left;
 732                         }
 733                 }
 734         DEBUG_0("rc_update_viewport  scale %d %d", rc->pr->width, rc->pr->height);
 735
 736         clutter_stage_set_color(CLUTTER_STAGE(rc->stage), &stage_color);
 737
 738
 739         clutter_actor_set_size(rc->group, rc->pr->viewport_width, rc->pr->viewport_height);
 740         clutter_actor_set_position(rc->group, rc->stereo_off_x, rc->stereo_off_y);
 741
 742         clutter_actor_set_rotation(CLUTTER_ACTOR(rc->group),
 743                                                 CLUTTER_Y_AXIS,
 744                                                 (rc->stereo_mode & PR_STEREO_MIRROR) ? 180 : 0,
 745                                                 rc->pr->viewport_width / 2.0, 0, 0);
 746
 747         clutter_actor_set_rotation(CLUTTER_ACTOR(rc->group),
 748                                                 CLUTTER_X_AXIS,
 749                                                 (rc->stereo_mode & PR_STEREO_FLIP) ? 180 : 0,
 750                                                 0, rc->pr->viewport_height / 2.0, 0);
 751
 752         rc_sync_actor(rc);
 753         rc_overlay_update_positions(rc);
 754 }
 755
 756 static void rc_scroll(void *renderer, gint x_off, gint y_off)
 757 {
 758         DEBUG_0("rc_scroll");
 759         RendererClutter *rc = (RendererClutter *)renderer;
 760
 761         rc_sync_actor(rc);
 762 }
 763
 764 static void rc_stereo_set(void *renderer, gint stereo_mode)
 765 {
 766         RendererClutter *rc = (RendererClutter *)renderer;
 767
 768         rc->stereo_mode = stereo_mode;
 769 }
 770
 771 static void rc_free(void *renderer)
 772 {
 773         RendererClutter *rc = (RendererClutter *)renderer;
 774         GtkWidget *widget = gtk_bin_get_child(GTK_BIN(rc->pr));
 775
 776         rc_remove_pending_updates(rc);
 777
 778         rc_overlay_free_all(rc);
 779
 780         if (widget)
 781                 {
 782                 /* widget still exists */
 783                 clutter_actor_destroy(rc->group);
 784                 if (clutter_group_get_n_children(CLUTTER_GROUP(rc->stage)) == 0)
 785                         {
 786                         DEBUG_1("destroy %p", rc->widget);
 787                         /* this was the last user */
 788                         gtk_widget_destroy(rc->widget);
 789                         }
 790                 else
 791                         {
 792                         DEBUG_1("keep %p", rc->widget);
 793                         g_object_unref(G_OBJECT(rc->widget));
 794                         }
 795                 }
 796         g_free(rc);
 797 }
 798
 799 RendererFuncs *renderer_clutter_new(PixbufRenderer *pr)
 800 {
 801         RendererClutter *rc = g_new0(RendererClutter, 1);
 802
 803         rc->pr = pr;
 804
 805         rc->f.area_changed = rc_area_changed;
 806         rc->f.update_pixbuf = rc_update_pixbuf;
 807         rc->f.free = rc_free;
 808         rc->f.update_zoom = rc_update_zoom;
 809         rc->f.invalidate_region = rc_invalidate_region;
 810         rc->f.scroll = rc_scroll;
 811         rc->f.update_viewport = rc_update_viewport;
 812
 813
 814         rc->f.overlay_add = rc_overlay_add;
 815         rc->f.overlay_set = rc_overlay_set;
 816         rc->f.overlay_get = rc_overlay_get;
 817
 818         rc->f.stereo_set = rc_stereo_set;
 819
 820
 821         rc->stereo_mode = 0;
 822         rc->stereo_off_x = 0;
 823         rc->stereo_off_y = 0;
 824
 825         rc->idle_update = 0;
 826         rc->pending_updates = NULL;
 827
 828         rc->widget = gtk_bin_get_child(GTK_BIN(rc->pr));
 829
 830         if (rc->widget)
 831                 {
 832                 if (!GTK_CLUTTER_IS_EMBED(rc->widget))
 833                         {
 834                         g_free(rc);
 835                         DEBUG_0("pixbuf renderer has a child of other type than gtk_clutter_embed");
 836                         return NULL;
 837                         }
 838                 }
 839         else
 840                 {
 841                 rc->widget = gtk_clutter_embed_new();
 842                 gtk_container_add(GTK_CONTAINER(rc->pr), rc->widget);
 843                 }
 844
 845         gtk_event_box_set_above_child (GTK_EVENT_BOX(rc->pr), TRUE);
 846         rc->stage = gtk_clutter_embed_get_stage (GTK_CLUTTER_EMBED (rc->widget));
 847
 848         rc->group = clutter_group_new();
 849         clutter_container_add_actor(CLUTTER_CONTAINER(rc->stage), rc->group);
 850         clutter_actor_set_clip_to_allocation(CLUTTER_ACTOR(rc->group), TRUE);
 851
 852         rc->texture = clutter_texture_new ();
 853         clutter_container_add_actor(CLUTTER_CONTAINER(rc->group), rc->texture);
 854         rc_set_shader(clutter_texture_get_cogl_material(CLUTTER_TEXTURE(rc->texture)));
 855         g_object_ref(G_OBJECT(rc->widget));
 856
 857         gtk_widget_show(rc->widget);
 858         return (RendererFuncs *) rc;
 859 }
 860
 861 #endif
 862 /* vim: set shiftwidth=8 softtabstop=0 cindent cinoptions={1s: */