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
 255         clutter_actor_set_anchor_point(CLUTTER_ACTOR(rc->texture), 0, 0);
 256
 257         DEBUG_0("scale %d %d", rc->pr->width, rc->pr->height);
 258         DEBUG_0("pos   %d %d", rc->pr->x_offset, rc->pr->y_offset);
 259
 260         clutter_actor_set_scale(CLUTTER_ACTOR(rc->texture),
 261                                 (gfloat)pr->width / pr->image_width,
 262                                 (gfloat)pr->height / pr->image_height);
 263
 264         switch (pr->orientation)
 265                 {
 266                 case EXIF_ORIENTATION_TOP_LEFT:
 267                         /* normal  */
 268                         clutter_actor_set_rotation(CLUTTER_ACTOR(rc->texture),
 269                                                 CLUTTER_Z_AXIS,
 270                                                 0, 0, 0, 0);
 271                         clutter_actor_set_rotation(CLUTTER_ACTOR(rc->texture),
 272                                                 CLUTTER_Y_AXIS,
 273                                                 0, 0, 0, 0);
 274                         anchor_x = 0;
 275                         anchor_y = 0;
 276                         break;
 277                 case EXIF_ORIENTATION_TOP_RIGHT:
 278                         /* mirrored */
 279                         clutter_actor_set_rotation(CLUTTER_ACTOR(rc->texture),
 280                                                 CLUTTER_Z_AXIS,
 281                                                 0, 0, 0, 0);
 282                         clutter_actor_set_rotation(CLUTTER_ACTOR(rc->texture),
 283                                                 CLUTTER_Y_AXIS,
 284                                                 180, 0, 0, 0);
 285                         anchor_x = pr->width;
 286                         anchor_y = 0;
 287                         break;
 288                 case EXIF_ORIENTATION_BOTTOM_RIGHT:
 289                         /* upside down */
 290                         clutter_actor_set_rotation(CLUTTER_ACTOR(rc->texture),
 291                                                 CLUTTER_Z_AXIS,
 292                                                 180, 0, 0, 0);
 293                         clutter_actor_set_rotation(CLUTTER_ACTOR(rc->texture),
 294                                                 CLUTTER_Y_AXIS,
 295                                                 0, 0, 0, 0);
 296                         anchor_x = pr->width;
 297                         anchor_y = pr->height;
 298                         break;
 299                 case EXIF_ORIENTATION_BOTTOM_LEFT:
 300                         /* flipped */
 301                         clutter_actor_set_rotation(CLUTTER_ACTOR(rc->texture),
 302                                                 CLUTTER_Z_AXIS,
 303                                                 180, 0, 0, 0);
 304                         clutter_actor_set_rotation(CLUTTER_ACTOR(rc->texture),
 305                                                 CLUTTER_Y_AXIS,
 306                                                 180, 0, 0, 0);
 307                         anchor_x = 0;
 308                         anchor_y = pr->height;
 309                         break;
 310                 case EXIF_ORIENTATION_LEFT_TOP:
 311                         clutter_actor_set_rotation(CLUTTER_ACTOR(rc->texture),
 312                                                 CLUTTER_Z_AXIS,
 313                                                 -90, 0, 0, 0);
 314                         clutter_actor_set_rotation(CLUTTER_ACTOR(rc->texture),
 315                                                 CLUTTER_Y_AXIS,
 316                                                 180, 0, 0, 0);
 317                         anchor_x = 0;
 318                         anchor_y = 0;
 319                         break;
 320                 case EXIF_ORIENTATION_RIGHT_TOP:
 321                         /* rotated -90 (270) */
 322                         clutter_actor_set_rotation(CLUTTER_ACTOR(rc->texture),
 323                                                 CLUTTER_Z_AXIS,
 324                                                 -90, 0, 0, 0);
 325                         clutter_actor_set_rotation(CLUTTER_ACTOR(rc->texture),
 326                                                 CLUTTER_Y_AXIS,
 327                                                 0, 0, 0, 0);
 328                         anchor_x = 0;
 329                         anchor_y = pr->height;
 330                         break;
 331                 case EXIF_ORIENTATION_RIGHT_BOTTOM:
 332                         clutter_actor_set_rotation(CLUTTER_ACTOR(rc->texture),
 333                                                 CLUTTER_Z_AXIS,
 334                                                 90, 0, 0, 0);
 335                         clutter_actor_set_rotation(CLUTTER_ACTOR(rc->texture),
 336                                                 CLUTTER_Y_AXIS,
 337                                                 180, 0, 0, 0);
 338                         anchor_x = pr->width;
 339                         anchor_y = pr->height;
 340                         break;
 341                 case EXIF_ORIENTATION_LEFT_BOTTOM:
 342                         /* rotated 90 */
 343                         clutter_actor_set_rotation(CLUTTER_ACTOR(rc->texture),
 344                                                 CLUTTER_Z_AXIS,
 345                                                 90, 0, 0, 0);
 346                         clutter_actor_set_rotation(CLUTTER_ACTOR(rc->texture),
 347                                                 CLUTTER_Y_AXIS,
 348                                                 0, 0, 0, 0);
 349                         anchor_x = pr->width;
 350                         anchor_y = 0;
 351                         break;
 352                 default:
 353                         /* The other values are out of range */
 354                         break;
 355                 }
 356
 357         clutter_actor_set_position(CLUTTER_ACTOR(rc->texture),
 358                                 pr->x_offset - pr->x_scroll + anchor_x,
 359                                 pr->y_offset - pr->y_scroll + anchor_y);
 360
 361 }
 362
 363
 364 static void rc_area_clip_add(RendererClutter *rc, gfloat x, gfloat y, gfloat w, gfloat h)
 365 {
 366         gfloat x2, y2;
 367         gfloat clip_x, clip_y, clip_w, clip_h, clip_x2, clip_y2;
 368
 369         x2 = x + w;
 370         y2 = y + h;
 371
 372         clutter_actor_get_clip(rc->texture, &clip_x, &clip_y, &clip_w, &clip_h);
 373
 374         clip_x2 = clip_x + clip_w;
 375         clip_y2 = clip_y + clip_h;
 376
 377         if (clip_x > x) clip_x = x;
 378         if (clip_x2 < x2) clip_x2 = x2;
 379         if (clip_y > y) clip_y = y;
 380         if (clip_y2 < y2) clip_y2 = y2;
 381
 382         clip_w = clip_x2 - clip_x;
 383         clip_h = clip_y2 - clip_y;
 384
 385         clutter_actor_set_clip(rc->texture, clip_x, clip_y, clip_w, clip_h);
 386 }
 387
 388 #define MAX_REGION_AREA (32768 * 1024)
 389
 390 static gboolean rc_area_changed_cb(gpointer data);
 391
 392 static void rc_schedule_texture_upload(RendererClutter *rc)
 393 {
 394         if (g_get_monotonic_time() - rc->last_pixbuf_change < 50000)
 395                 {
 396                 /* delay clutter redraw until the texture has some data
 397                    set priority between gtk redraw and clutter redraw */
 398                 DEBUG_0("%s tex upload high prio", get_exec_time());
 399                 rc->idle_update = g_idle_add_full(CLUTTER_PRIORITY_REDRAW - 10, rc_area_changed_cb, rc, NULL);
 400                 }
 401         else
 402                 {
 403                 /* higher prio than histogram */
 404                 DEBUG_0("%s tex upload low prio", get_exec_time());
 405
 406                 rc->idle_update = g_idle_add_full(G_PRIORITY_DEFAULT_IDLE - 5, rc_area_changed_cb, rc, NULL);
 407                 }
 408 }
 409
 410 static gboolean rc_area_changed_cb(gpointer data)
 411 {
 412         RendererClutter *rc = (RendererClutter *)data;
 413         PixbufRenderer *pr = rc->pr;
 414
 415         RendererClutterAreaParam *par = rc->pending_updates->data;
 416
 417         gint h = MAX_REGION_AREA / par->w;
 418         if (h == 0) h = 1;
 419         if (h > par->h) h = par->h;
 420
 421
 422         DEBUG_0("%s upload start", get_exec_time());
 423         if (pr->pixbuf)
 424                 {
 425                 CoglHandle texture = clutter_texture_get_cogl_texture(CLUTTER_TEXTURE(rc->texture));
 426
 427                 cogl_texture_set_region(texture,
 428                                         par->x + GET_RIGHT_PIXBUF_OFFSET(rc),
 429                                         par->y,
 430                                         par->x,
 431                                         par->y,
 432                                         par->w,
 433                                         h,
 434                                         par->w,
 435                                         h,
 436                                         gdk_pixbuf_get_has_alpha(pr->pixbuf) ? COGL_PIXEL_FORMAT_BGRA_8888 : COGL_PIXEL_FORMAT_BGR_888,
 437                                         gdk_pixbuf_get_rowstride(pr->pixbuf),
 438                                         gdk_pixbuf_get_pixels(pr->pixbuf));
 439                 }
 440         DEBUG_0("%s upload end", get_exec_time());
 441         rc_area_clip_add(rc, par->x, par->y, par->w, h);
 442
 443
 444         par->y += h;
 445         par->h -= h;
 446
 447         if (par->h == 0)
 448                 {
 449                 rc->pending_updates = g_list_remove(rc->pending_updates, par);
 450                 g_free(par);
 451                 }
 452         if (!rc->pending_updates)
 453                 {
 454                 clutter_actor_queue_redraw(CLUTTER_ACTOR(rc->texture));
 455                 rc->idle_update = 0;
 456
 457                 /* FIXME: find a better place for this */
 458                 if (!rc->clut_updated) rc_prepare_post_process_lut(rc);
 459
 460                 return FALSE;
 461                 }
 462
 463         rc_schedule_texture_upload(rc);
 464
 465         return FALSE; /* it was rescheduled, possibly with different prio */
 466 }
 467
 468
 469 static void rc_area_changed(void *renderer, gint src_x, gint src_y, gint src_w, gint src_h)
 470 {
 471         RendererClutter *rc = (RendererClutter *)renderer;
 472         PixbufRenderer *pr = rc->pr;
 473         RendererClutterAreaParam *par;
 474
 475         gint width = gdk_pixbuf_get_width(pr->pixbuf);
 476         gint height = gdk_pixbuf_get_height(pr->pixbuf);
 477
 478         if (pr->stereo_data == STEREO_PIXBUF_SBS || pr->stereo_data == STEREO_PIXBUF_CROSS)
 479                         {
 480                         width /= 2;
 481                         }
 482
 483         if (!pr_clip_region(src_x, src_y, src_w, src_h,
 484                             GET_RIGHT_PIXBUF_OFFSET(rc), 0, width, height,
 485                             &src_x, &src_y, &src_w, &src_h)) return;
 486
 487         par = g_new0(RendererClutterAreaParam, 1);
 488         par->rc = rc;
 489         par->x = src_x - GET_RIGHT_PIXBUF_OFFSET(rc);
 490         par->y = src_y;
 491         par->w = src_w;
 492         par->h = src_h;
 493         rc->pending_updates = g_list_append(rc->pending_updates, par);
 494         if (!rc->idle_update)
 495                 {
 496                 rc_schedule_texture_upload(rc);
 497                 }
 498 }
 499
 500 static void rc_remove_pending_updates(RendererClutter *rc)
 501 {
 502         if (rc->idle_update) g_idle_remove_by_data(rc);
 503         rc->idle_update = 0;
 504         while (rc->pending_updates)
 505                 {
 506                 RendererClutterAreaParam *par = rc->pending_updates->data;
 507                 rc->pending_updates = g_list_remove(rc->pending_updates, par);
 508                 g_free(par);
 509                 }
 510 }
 511
 512 static void rc_update_pixbuf(void *renderer, gboolean lazy)
 513 {
 514         RendererClutter *rc = (RendererClutter *)renderer;
 515         PixbufRenderer *pr = rc->pr;
 516
 517         DEBUG_0("rc_update_pixbuf");
 518
 519         rc_remove_pending_updates(rc);
 520
 521         rc->last_pixbuf_change = g_get_monotonic_time();
 522         DEBUG_0("%s change time reset", get_exec_time());
 523
 524         if (pr->pixbuf)
 525                 {
 526                 gint width = gdk_pixbuf_get_width(pr->pixbuf);
 527                 gint height = gdk_pixbuf_get_height(pr->pixbuf);
 528
 529                 DEBUG_0("pixbuf size %d x %d (%d)", width, height, gdk_pixbuf_get_has_alpha(pr->pixbuf) ? 32 : 24);
 530
 531                 gint prev_width, prev_height;
 532
 533                 if (pr->stereo_data == STEREO_PIXBUF_SBS || pr->stereo_data == STEREO_PIXBUF_CROSS)
 534                         {
 535                         width /= 2;
 536                         }
 537
 538
 539                 clutter_texture_get_base_size(CLUTTER_TEXTURE(rc->texture), &prev_width, &prev_height);
 540
 541                 if (width != prev_width || height != prev_height)
 542                         {
 543                         /* FIXME use CoglMaterial with multiple textures for background, color management, anaglyph, ... */
 544                         CoglHandle texture = cogl_texture_new_with_size(width,
 545                                                                         height,
 546                                                                         COGL_TEXTURE_NO_AUTO_MIPMAP | COGL_TEXTURE_NO_SLICING,
 547                                                                         gdk_pixbuf_get_has_alpha(pr->pixbuf) ? COGL_PIXEL_FORMAT_BGRA_8888 : COGL_PIXEL_FORMAT_BGR_888);
 548
 549                         if (texture != COGL_INVALID_HANDLE)
 550                                 {
 551                                 clutter_texture_set_cogl_texture(CLUTTER_TEXTURE(rc->texture), texture);
 552                                 cogl_handle_unref(texture);
 553                                 }
 554                         }
 555                 clutter_actor_set_clip(rc->texture, 0, 0, 0, 0); /* visible area is extended as area_changed events arrive */
 556                 if (!lazy)
 557                         {
 558                         rc_area_changed(renderer, GET_RIGHT_PIXBUF_OFFSET(rc), 0, width, height);
 559                         }
 560                 }
 561
 562         rc->clut_updated = FALSE;
 563 }
 564
 565
 566
 567 static void rc_update_zoom(void *renderer, gboolean lazy)
 568 {
 569         RendererClutter *rc = (RendererClutter *)renderer;
 570
 571         DEBUG_0("rc_update_zoom");
 572         rc_sync_actor(rc);
 573 }
 574
 575 static void rc_invalidate_region(void *renderer, gint x, gint y, gint w, gint h)
 576 {
 577 }
 578
 579 static OverlayData *rc_overlay_find(RendererClutter *rc, gint id)
 580 {
 581         GList *work;
 582
 583         work = rc->overlay_list;
 584         while (work)
 585                 {
 586                 OverlayData *od = work->data;
 587                 work = work->next;
 588
 589                 if (od->id == id) return od;
 590                 }
 591
 592         return NULL;
 593 }
 594
 595 static void rc_overlay_actor_destroy_cb(ClutterActor *actor, gpointer user_data)
 596 {
 597         OverlayData *od = user_data;
 598         od->actor = NULL;
 599 }
 600
 601 static void rc_overlay_free(RendererClutter *rc, OverlayData *od)
 602 {
 603         rc->overlay_list = g_list_remove(rc->overlay_list, od);
 604
 605         if (od->pixbuf) g_object_unref(G_OBJECT(od->pixbuf));
 606         if (od->actor) clutter_actor_destroy(od->actor);
 607         g_free(od);
 608 }
 609
 610 static void rc_overlay_update_position(RendererClutter *rc, OverlayData *od)
 611 {
 612         gint px, py, pw, ph;
 613
 614         pw = gdk_pixbuf_get_width(od->pixbuf);
 615         ph = gdk_pixbuf_get_height(od->pixbuf);
 616         px = od->x;
 617         py = od->y;
 618
 619         if (od->flags & OVL_RELATIVE)
 620                 {
 621                 if (px < 0) px = rc->pr->viewport_width - pw + px;
 622                 if (py < 0) py = rc->pr->viewport_height - ph + py;
 623                 }
 624         if (od->actor) clutter_actor_set_position(od->actor, px, py);
 625 }
 626
 627 static void rc_overlay_update_positions(RendererClutter *rc)
 628 {
 629         GList *work;
 630
 631         work = rc->overlay_list;
 632         while (work)
 633                 {
 634                 OverlayData *od = work->data;
 635                 work = work->next;
 636
 637                 rc_overlay_update_position(rc, od);
 638                 }
 639 }
 640
 641 static void rc_overlay_free_all(RendererClutter *rc)
 642 {
 643         GList *work;
 644
 645         work = rc->overlay_list;
 646         while (work)
 647                 {
 648                 OverlayData *od = work->data;
 649                 work = work->next;
 650
 651                 rc_overlay_free(rc, od);
 652                 }
 653 }
 654
 655 static gint rc_overlay_add(void *renderer, GdkPixbuf *pixbuf, gint x, gint y, OverlayRendererFlags flags)
 656 {
 657         RendererClutter *rc = (RendererClutter *)renderer;
 658         PixbufRenderer *pr = rc->pr;
 659         OverlayData *od;
 660         gint id;
 661
 662         g_return_val_if_fail(IS_PIXBUF_RENDERER(pr), -1);
 663         g_return_val_if_fail(pixbuf != NULL, -1);
 664
 665         id = 1;
 666         while (rc_overlay_find(rc, id)) id++;
 667
 668         od = g_new0(OverlayData, 1);
 669         od->id = id;
 670         od->pixbuf = pixbuf;
 671         g_object_ref(G_OBJECT(od->pixbuf));
 672         od->x = x;
 673         od->y = y;
 674         od->flags = flags;
 675
 676         od->actor = gtk_clutter_texture_new();
 677         g_signal_connect (od->actor, "destroy", G_CALLBACK(rc_overlay_actor_destroy_cb), od);
 678
 679         gtk_clutter_texture_set_from_pixbuf(GTK_CLUTTER_TEXTURE (od->actor), pixbuf, NULL);
 680         clutter_container_add_actor(CLUTTER_CONTAINER(rc->group), od->actor);
 681
 682         rc->overlay_list = g_list_append(rc->overlay_list, od);
 683         rc_overlay_update_position(rc, od);
 684
 685         return od->id;
 686 }
 687
 688 static void rc_overlay_set(void *renderer, gint id, GdkPixbuf *pixbuf, gint x, gint y)
 689 {
 690         RendererClutter *rc = (RendererClutter *)renderer;
 691         PixbufRenderer *pr = rc->pr;
 692         OverlayData *od;
 693
 694         g_return_if_fail(IS_PIXBUF_RENDERER(pr));
 695
 696         od = rc_overlay_find(rc, id);
 697         if (!od) return;
 698
 699         if (pixbuf)
 700                 {
 701                 g_object_ref(G_OBJECT(pixbuf));
 702                 g_object_unref(G_OBJECT(od->pixbuf));
 703                 od->pixbuf = pixbuf;
 704
 705                 od->x = x;
 706                 od->y = y;
 707
 708                 if (od->actor) gtk_clutter_texture_set_from_pixbuf(GTK_CLUTTER_TEXTURE(od->actor), pixbuf, NULL);
 709                 rc_overlay_update_position(rc, od);
 710                 }
 711         else
 712                 {
 713                 rc_overlay_free(rc, od);
 714                 }
 715 }
 716
 717 static gboolean rc_overlay_get(void *renderer, gint id, GdkPixbuf **pixbuf, gint *x, gint *y)
 718 {
 719         RendererClutter *rc = (RendererClutter *)renderer;
 720
 721         PixbufRenderer *pr = rc->pr;
 722         OverlayData *od;
 723
 724         g_return_val_if_fail(IS_PIXBUF_RENDERER(pr), FALSE);
 725
 726         od = rc_overlay_find(rc, id);
 727         if (!od) return FALSE;
 728
 729         if (pixbuf) *pixbuf = od->pixbuf;
 730         if (x) *x = od->x;
 731         if (y) *y = od->y;
 732
 733         return TRUE;
 734 }
 735
 736
 737 static void rc_update_viewport(void *renderer)
 738 {
 739         RendererClutter *rc = (RendererClutter *)renderer;
 740         ClutterColor stage_color = { 0x00, 0x00, 0x00, 0xff };
 741
 742         rc->stereo_off_x = 0;
 743         rc->stereo_off_y = 0;
 744
 745         if (rc->stereo_mode & PR_STEREO_RIGHT)
 746                 {
 747                 if (rc->stereo_mode & PR_STEREO_HORIZ)
 748                         {
 749                         rc->stereo_off_x = rc->pr->viewport_width;
 750                         }
 751                 else if (rc->stereo_mode & PR_STEREO_VERT)
 752                         {
 753                         rc->stereo_off_y = rc->pr->viewport_height;
 754                         }
 755                 else if (rc->stereo_mode & PR_STEREO_FIXED)
 756                         {
 757                         rc->stereo_off_x = rc->pr->stereo_fixed_x_right;
 758                         rc->stereo_off_y = rc->pr->stereo_fixed_y_right;
 759                         }
 760                 }
 761         else
 762                 {
 763                 if (rc->stereo_mode & PR_STEREO_FIXED)
 764                         {
 765                         rc->stereo_off_x = rc->pr->stereo_fixed_x_left;
 766                         rc->stereo_off_y = rc->pr->stereo_fixed_y_left;
 767                         }
 768                 }
 769         DEBUG_0("rc_update_viewport  scale %d %d", rc->pr->width, rc->pr->height);
 770
 771         clutter_stage_set_color(CLUTTER_STAGE(rc->stage), &stage_color);
 772
 773
 774         clutter_actor_set_size(rc->group, rc->pr->viewport_width, rc->pr->viewport_height);
 775         clutter_actor_set_position(rc->group, rc->stereo_off_x, rc->stereo_off_y);
 776
 777         clutter_actor_set_rotation(CLUTTER_ACTOR(rc->group),
 778                                                 CLUTTER_Y_AXIS,
 779                                                 (rc->stereo_mode & PR_STEREO_MIRROR) ? 180 : 0,
 780                                                 rc->pr->viewport_width / 2.0, 0, 0);
 781
 782         clutter_actor_set_rotation(CLUTTER_ACTOR(rc->group),
 783                                                 CLUTTER_X_AXIS,
 784                                                 (rc->stereo_mode & PR_STEREO_FLIP) ? 180 : 0,
 785                                                 0, rc->pr->viewport_height / 2.0, 0);
 786
 787         rc_sync_actor(rc);
 788         rc_overlay_update_positions(rc);
 789 }
 790
 791 static void rc_scroll(void *renderer, gint x_off, gint y_off)
 792 {
 793         DEBUG_0("rc_scroll");
 794         RendererClutter *rc = (RendererClutter *)renderer;
 795
 796         rc_sync_actor(rc);
 797 }
 798
 799 static void rc_stereo_set(void *renderer, gint stereo_mode)
 800 {
 801         RendererClutter *rc = (RendererClutter *)renderer;
 802
 803         rc->stereo_mode = stereo_mode;
 804 }
 805
 806 static void rc_free(void *renderer)
 807 {
 808         RendererClutter *rc = (RendererClutter *)renderer;
 809         GtkWidget *widget = gtk_bin_get_child(GTK_BIN(rc->pr));
 810
 811         rc_remove_pending_updates(rc);
 812
 813         rc_overlay_free_all(rc);
 814
 815         if (widget)
 816                 {
 817                 /* widget still exists */
 818                 clutter_actor_destroy(rc->group);
 819                 if (clutter_group_get_n_children(CLUTTER_GROUP(rc->stage)) == 0)
 820                         {
 821                         DEBUG_1("destroy %p", rc->widget);
 822                         /* this was the last user */
 823                         gtk_widget_destroy(rc->widget);
 824                         }
 825                 else
 826                         {
 827                         DEBUG_1("keep %p", rc->widget);
 828                         g_object_unref(G_OBJECT(rc->widget));
 829                         }
 830                 }
 831         g_free(rc);
 832 }
 833
 834 RendererFuncs *renderer_clutter_new(PixbufRenderer *pr)
 835 {
 836         RendererClutter *rc = g_new0(RendererClutter, 1);
 837
 838         rc->pr = pr;
 839
 840         rc->f.area_changed = rc_area_changed;
 841         rc->f.update_pixbuf = rc_update_pixbuf;
 842         rc->f.free = rc_free;
 843         rc->f.update_zoom = rc_update_zoom;
 844         rc->f.invalidate_region = rc_invalidate_region;
 845         rc->f.scroll = rc_scroll;
 846         rc->f.update_viewport = rc_update_viewport;
 847
 848
 849         rc->f.overlay_add = rc_overlay_add;
 850         rc->f.overlay_set = rc_overlay_set;
 851         rc->f.overlay_get = rc_overlay_get;
 852
 853         rc->f.stereo_set = rc_stereo_set;
 854
 855
 856         rc->stereo_mode = 0;
 857         rc->stereo_off_x = 0;
 858         rc->stereo_off_y = 0;
 859
 860         rc->idle_update = 0;
 861         rc->pending_updates = NULL;
 862
 863         rc->widget = gtk_bin_get_child(GTK_BIN(rc->pr));
 864
 865         if (rc->widget)
 866                 {
 867                 if (!GTK_CLUTTER_IS_EMBED(rc->widget))
 868                         {
 869                         g_free(rc);
 870                         DEBUG_0("pixbuf renderer has a child of other type than gtk_clutter_embed");
 871                         return NULL;
 872                         }
 873                 }
 874         else
 875                 {
 876                 rc->widget = gtk_clutter_embed_new();
 877                 gtk_container_add(GTK_CONTAINER(rc->pr), rc->widget);
 878                 }
 879
 880         gtk_event_box_set_above_child (GTK_EVENT_BOX(rc->pr), TRUE);
 881         rc->stage = gtk_clutter_embed_get_stage (GTK_CLUTTER_EMBED (rc->widget));
 882
 883         rc->group = clutter_group_new();
 884         clutter_container_add_actor(CLUTTER_CONTAINER(rc->stage), rc->group);
 885         clutter_actor_set_clip_to_allocation(CLUTTER_ACTOR(rc->group), TRUE);
 886
 887         rc->texture = clutter_texture_new ();
 888         clutter_container_add_actor(CLUTTER_CONTAINER(rc->group), rc->texture);
 889         rc_set_shader(clutter_texture_get_cogl_material(CLUTTER_TEXTURE(rc->texture)));
 890         g_object_ref(G_OBJECT(rc->widget));
 891
 892         gtk_widget_show(rc->widget);
 893         return (RendererFuncs *) rc;
 894 }
 895
 896 #endif
 897 /* vim: set shiftwidth=8 softtabstop=0 cindent cinoptions={1s: */