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 typedef struct _RendererClutterShaderInfo RendererClutterShaderInfo;
 122 struct _RendererClutterShaderInfo {
 123         float checkersize;
 124         float checkercolor0[3];
 125         float checkercolor1[3];
 126 };
 127
 128 #define CLUT_SIZE       32
 129
 130 static void rc_set_shader(CoglHandle material, const RendererClutterShaderInfo *shaderInfo)
 131 {
 132         CoglHandle shader;
 133         CoglHandle program;
 134         gint uniform_no;
 135
 136         shader = cogl_create_shader (COGL_SHADER_TYPE_FRAGMENT);
 137         cogl_shader_source (shader,
 138         "vec3 checker(vec2 texc, vec3 color0, vec3 color1)                                              \n"
 139         "{                                                                                                                                              \n"
 140         "  if (mod(floor(texc.x) + floor(texc.y), 2.0) == 0.0)                                  \n"
 141         "    return color0;                                                                                                             \n"
 142         "  else                                                                                                                                 \n"
 143         "    return color1;                                                                                                             \n"
 144         "}                                                                                                                                              \n"
 145         "                                                                                                                                               \n"
 146         "uniform sampler2D tex;                                                                                                 \n"
 147         "uniform sampler3D clut;                                                                                                \n"
 148         "uniform float scale;                                                                                                   \n"
 149         "uniform float offset;                                                                                                  \n"
 150         "uniform float checkersize;                                                                                             \n"
 151         "uniform vec3 color0;                                                                                                   \n"
 152         "uniform vec3 color1;                                                                                                   \n"
 153         "                                                                                                                                               \n"
 154         "void main(void)                                                                                                                \n"
 155         "{                                                                                                                                              \n"
 156         "    vec3 bg = checker(gl_FragCoord.xy / checkersize, color0, color1);  \n"
 157         "    vec4 img4 = texture2D(tex, gl_TexCoord[0].xy);                                             \n"
 158         "    vec3 img3 = img4.bgr;                                                                                              \n"
 159         "    img3 = img3 * scale + offset;                                                                              \n"
 160         "    img3 = texture3D(clut, img3).rgb;                                                                  \n"
 161         "                                                                                                                                               \n"
 162         "    gl_FragColor = vec4(img3 * img4.a + bg * (1.0 - img4.a), 1.0);             \n"
 163         "}                                                                                                                                              \n"
 164         );
 165         cogl_shader_compile(shader);
 166         gchar *err = cogl_shader_get_info_log(shader);
 167         DEBUG_0("%s\n",err);
 168         g_free(err);
 169
 170         program = cogl_create_program ();
 171         cogl_program_attach_shader (program, shader);
 172         cogl_handle_unref (shader);
 173         cogl_program_link (program);
 174
 175         uniform_no = cogl_program_get_uniform_location (program, "tex");
 176         cogl_program_set_uniform_1i (program, uniform_no, 0);
 177
 178         uniform_no = cogl_program_get_uniform_location (program, "clut");
 179         cogl_program_set_uniform_1i (program, uniform_no, 1);
 180
 181         uniform_no = cogl_program_get_uniform_location (program, "scale");
 182         cogl_program_set_uniform_1f (program, uniform_no, (double) (CLUT_SIZE - 1) / CLUT_SIZE);
 183
 184         uniform_no = cogl_program_get_uniform_location (program, "offset");
 185         cogl_program_set_uniform_1f (program, uniform_no, 1.0 / (2 * CLUT_SIZE));
 186
 187         uniform_no = cogl_program_get_uniform_location (program, "checkersize");
 188         cogl_program_set_uniform_1f (program, uniform_no, shaderInfo->checkersize);
 189
 190         uniform_no = cogl_program_get_uniform_location (program, "color0");
 191         cogl_program_set_uniform_float (program, uniform_no, 3, 1, shaderInfo->checkercolor0);
 192
 193         uniform_no = cogl_program_get_uniform_location (program, "color1");
 194         cogl_program_set_uniform_float (program, uniform_no, 3, 1, shaderInfo->checkercolor1);
 195
 196         cogl_material_set_user_program (material, program);
 197         cogl_handle_unref (program);
 198 }
 199
 200
 201 static void rc_prepare_post_process_lut(RendererClutter *rc)
 202 {
 203         PixbufRenderer *pr = rc->pr;
 204         static guchar clut[CLUT_SIZE * CLUT_SIZE * CLUT_SIZE * 3];
 205         guint r, g, b;
 206         GdkPixbuf *tmp_pixbuf;
 207         CoglHandle material;
 208         CoglHandle tex3d;
 209
 210         DEBUG_0("%s clut start", get_exec_time());
 211
 212         for (r = 0; r < CLUT_SIZE; r++)
 213                 {
 214                 for (g = 0; g < CLUT_SIZE; g++)
 215                         {
 216                         for (b = 0; b < CLUT_SIZE; b++)
 217                                 {
 218                                 guchar *ptr = clut + ((b * CLUT_SIZE + g) * CLUT_SIZE + r) * 3;
 219                                 ptr[0] = floor ((double) r / (CLUT_SIZE - 1) * 255.0 + 0.5);
 220                                 ptr[1] = floor ((double) g / (CLUT_SIZE - 1) * 255.0 + 0.5);
 221                                 ptr[2] = floor ((double) b / (CLUT_SIZE - 1) * 255.0 + 0.5);
 222                                 }
 223                         }
 224                 }
 225         tmp_pixbuf = gdk_pixbuf_new_from_data(clut, GDK_COLORSPACE_RGB, FALSE, 8,
 226                                               CLUT_SIZE * CLUT_SIZE,
 227                                               CLUT_SIZE,
 228                                               CLUT_SIZE * CLUT_SIZE * 3,
 229                                               NULL, NULL);
 230         if (pr->func_post_process)
 231                 {
 232                 pr->func_post_process(pr, &tmp_pixbuf, 0, 0, CLUT_SIZE * CLUT_SIZE, CLUT_SIZE, pr->post_process_user_data);
 233                 }
 234         g_object_unref(tmp_pixbuf);
 235
 236         DEBUG_0("%s clut upload start", get_exec_time());
 237 #if CLUTTER_CHECK_VERSION(1,10,0)
 238         {
 239         CoglContext *ctx = clutter_backend_get_cogl_context(clutter_get_default_backend ());
 240
 241         tex3d = cogl_texture_3d_new_from_data(ctx,
 242                                               CLUT_SIZE, CLUT_SIZE, CLUT_SIZE,
 243                                               COGL_PIXEL_FORMAT_RGB_888,
 244                                               COGL_PIXEL_FORMAT_RGB_888,
 245                                               CLUT_SIZE * 3,
 246                                               CLUT_SIZE * CLUT_SIZE * 3,
 247                                               clut,
 248                                               NULL);
 249         }
 250 #else
 251         tex3d = cogl_texture_3d_new_from_data(CLUT_SIZE, CLUT_SIZE, CLUT_SIZE,
 252                                               COGL_TEXTURE_NONE,
 253                                               COGL_PIXEL_FORMAT_RGB_888,
 254                                               COGL_PIXEL_FORMAT_RGB_888,
 255                                               CLUT_SIZE * 3,
 256                                               CLUT_SIZE * CLUT_SIZE * 3,
 257                                               clut,
 258                                               NULL);
 259 #endif
 260         material = clutter_texture_get_cogl_material(CLUTTER_TEXTURE(rc->texture));
 261         cogl_material_set_layer(material, 1, tex3d);
 262         cogl_handle_unref(tex3d);
 263         DEBUG_0("%s clut end", get_exec_time());
 264         rc->clut_updated = TRUE;
 265 }
 266
 267
 268
 269 static void rc_sync_actor(RendererClutter *rc)
 270 {
 271         PixbufRenderer *pr = rc->pr;
 272         gint anchor_x = 0;
 273         gint anchor_y = 0;
 274         gint rot_z = 0;
 275         gint rot_y = 0;
 276
 277         clutter_actor_set_anchor_point(CLUTTER_ACTOR(rc->texture), 0, 0);
 278
 279         DEBUG_0("scale %d %d", rc->pr->width, rc->pr->height);
 280         DEBUG_0("pos   %d %d", rc->pr->x_offset, rc->pr->y_offset);
 281
 282         clutter_actor_set_scale(CLUTTER_ACTOR(rc->texture),
 283                                 (gfloat)pr->width / pr->image_width,
 284                                 (gfloat)pr->height / pr->image_height);
 285
 286         switch (pr->orientation)
 287                 {
 288                 case EXIF_ORIENTATION_TOP_LEFT:
 289                         /* 1 - Horizontal (normal)  */
 290                         break;
 291                 case EXIF_ORIENTATION_TOP_RIGHT:
 292                         /* 2 - Mirror horizontal */
 293                         rot_y = 180;
 294                         anchor_x = pr->width;
 295                         break;
 296                 case EXIF_ORIENTATION_BOTTOM_RIGHT:
 297                         /* 3 - Rotate 180 */
 298                         rot_z = 180;
 299                         anchor_x = pr->width;
 300                         anchor_y = pr->height;
 301                         break;
 302                 case EXIF_ORIENTATION_BOTTOM_LEFT:
 303                         /* 4 - Mirror vertical */
 304                         rot_z = 180;
 305                         rot_y = 180;
 306                         anchor_y = pr->height;
 307                         break;
 308                 case EXIF_ORIENTATION_LEFT_TOP:
 309                         /* 5 - Mirror horizontal and rotate 270 CW */
 310                         rot_z = 270;
 311                         rot_y = 180;
 312                         break;
 313                 case EXIF_ORIENTATION_RIGHT_TOP:
 314                         /* 6 - Rotate 90 CW */
 315                         rot_z = 90;
 316                         anchor_x = pr->width;
 317                         break;
 318                 case EXIF_ORIENTATION_RIGHT_BOTTOM:
 319                         /* 7 - Mirror horizontal and rotate 90 CW */
 320                         rot_z = 90;
 321                         rot_y = 180;
 322                         anchor_x = pr->width;
 323                         anchor_y = pr->height;
 324                         break;
 325                 case EXIF_ORIENTATION_LEFT_BOTTOM:
 326                         /* 8 - Rotate 270 CW */
 327                         rot_z = 270;
 328                         anchor_y = pr->height;
 329                         break;
 330                 default:
 331                         /* The other values are out of range */
 332                         break;
 333                 }
 334
 335         clutter_actor_set_rotation(     CLUTTER_ACTOR(rc->texture),
 336                                                                 CLUTTER_Z_AXIS,
 337                                                                 rot_z, 0, 0, 0);
 338         clutter_actor_set_rotation(     CLUTTER_ACTOR(rc->texture),
 339                                                                 CLUTTER_Y_AXIS,
 340                                                                 rot_y, 0, 0, 0);
 341
 342         clutter_actor_set_position(CLUTTER_ACTOR(rc->texture),
 343                                 pr->x_offset - pr->x_scroll + anchor_x,
 344                                 pr->y_offset - pr->y_scroll + anchor_y);
 345
 346 }
 347
 348
 349 static void rc_area_clip_add(RendererClutter *rc, gfloat x, gfloat y, gfloat w, gfloat h)
 350 {
 351         gfloat x2, y2;
 352         gfloat clip_x, clip_y, clip_w, clip_h, clip_x2, clip_y2;
 353
 354         x2 = x + w;
 355         y2 = y + h;
 356
 357         clutter_actor_get_clip(rc->texture, &clip_x, &clip_y, &clip_w, &clip_h);
 358
 359         clip_x2 = clip_x + clip_w;
 360         clip_y2 = clip_y + clip_h;
 361
 362         if (clip_x > x) clip_x = x;
 363         if (clip_x2 < x2) clip_x2 = x2;
 364         if (clip_y > y) clip_y = y;
 365         if (clip_y2 < y2) clip_y2 = y2;
 366
 367         clip_w = clip_x2 - clip_x;
 368         clip_h = clip_y2 - clip_y;
 369
 370         clutter_actor_set_clip(rc->texture, clip_x, clip_y, clip_w, clip_h);
 371 }
 372
 373 #define MAX_REGION_AREA (32768 * 1024)
 374
 375 static gboolean rc_area_changed_cb(gpointer data);
 376
 377 static void rc_schedule_texture_upload(RendererClutter *rc)
 378 {
 379         if (g_get_monotonic_time() - rc->last_pixbuf_change < 50000)
 380                 {
 381                 /* delay clutter redraw until the texture has some data
 382                    set priority between gtk redraw and clutter redraw */
 383                 DEBUG_0("%s tex upload high prio", get_exec_time());
 384                 rc->idle_update = g_idle_add_full(CLUTTER_PRIORITY_REDRAW - 10, rc_area_changed_cb, rc, NULL);
 385                 }
 386         else
 387                 {
 388                 /* higher prio than histogram */
 389                 DEBUG_0("%s tex upload low prio", get_exec_time());
 390
 391                 rc->idle_update = g_idle_add_full(G_PRIORITY_DEFAULT_IDLE - 5, rc_area_changed_cb, rc, NULL);
 392                 }
 393 }
 394
 395 static gboolean rc_area_changed_cb(gpointer data)
 396 {
 397         RendererClutter *rc = (RendererClutter *)data;
 398         PixbufRenderer *pr = rc->pr;
 399
 400         RendererClutterAreaParam *par = rc->pending_updates->data;
 401
 402         gint h = MAX_REGION_AREA / par->w;
 403         if (h == 0) h = 1;
 404         if (h > par->h) h = par->h;
 405
 406
 407         DEBUG_0("%s upload start", get_exec_time());
 408         if (pr->pixbuf)
 409                 {
 410                 CoglHandle texture = clutter_texture_get_cogl_texture(CLUTTER_TEXTURE(rc->texture));
 411
 412                 cogl_texture_set_region(texture,
 413                                         par->x + GET_RIGHT_PIXBUF_OFFSET(rc),
 414                                         par->y,
 415                                         par->x,
 416                                         par->y,
 417                                         par->w,
 418                                         h,
 419                                         par->w,
 420                                         h,
 421                                         gdk_pixbuf_get_has_alpha(pr->pixbuf) ? COGL_PIXEL_FORMAT_BGRA_8888 : COGL_PIXEL_FORMAT_BGR_888,
 422                                         gdk_pixbuf_get_rowstride(pr->pixbuf),
 423                                         gdk_pixbuf_get_pixels(pr->pixbuf));
 424                 }
 425         DEBUG_0("%s upload end", get_exec_time());
 426         rc_area_clip_add(rc, par->x, par->y, par->w, h);
 427
 428
 429         par->y += h;
 430         par->h -= h;
 431
 432         if (par->h == 0)
 433                 {
 434                 rc->pending_updates = g_list_remove(rc->pending_updates, par);
 435                 g_free(par);
 436                 }
 437         if (!rc->pending_updates)
 438                 {
 439                 clutter_actor_queue_redraw(CLUTTER_ACTOR(rc->texture));
 440                 rc->idle_update = 0;
 441
 442                 /* FIXME: find a better place for this */
 443                 if (!rc->clut_updated) rc_prepare_post_process_lut(rc);
 444
 445                 return FALSE;
 446                 }
 447
 448         rc_schedule_texture_upload(rc);
 449
 450         return FALSE; /* it was rescheduled, possibly with different prio */
 451 }
 452
 453
 454 static void rc_area_changed(void *renderer, gint src_x, gint src_y, gint src_w, gint src_h)
 455 {
 456         RendererClutter *rc = (RendererClutter *)renderer;
 457         PixbufRenderer *pr = rc->pr;
 458         RendererClutterAreaParam *par;
 459
 460         gint width = gdk_pixbuf_get_width(pr->pixbuf);
 461         gint height = gdk_pixbuf_get_height(pr->pixbuf);
 462
 463         if (pr->stereo_data == STEREO_PIXBUF_SBS || pr->stereo_data == STEREO_PIXBUF_CROSS)
 464                         {
 465                         width /= 2;
 466                         }
 467
 468         if (!pr_clip_region(src_x, src_y, src_w, src_h,
 469                             GET_RIGHT_PIXBUF_OFFSET(rc), 0, width, height,
 470                             &src_x, &src_y, &src_w, &src_h)) return;
 471
 472         par = g_new0(RendererClutterAreaParam, 1);
 473         par->rc = rc;
 474         par->x = src_x - GET_RIGHT_PIXBUF_OFFSET(rc);
 475         par->y = src_y;
 476         par->w = src_w;
 477         par->h = src_h;
 478         rc->pending_updates = g_list_append(rc->pending_updates, par);
 479         if (!rc->idle_update)
 480                 {
 481                 rc_schedule_texture_upload(rc);
 482                 }
 483 }
 484
 485 static void rc_remove_pending_updates(RendererClutter *rc)
 486 {
 487         if (rc->idle_update) g_idle_remove_by_data(rc);
 488         rc->idle_update = 0;
 489         while (rc->pending_updates)
 490                 {
 491                 RendererClutterAreaParam *par = rc->pending_updates->data;
 492                 rc->pending_updates = g_list_remove(rc->pending_updates, par);
 493                 g_free(par);
 494                 }
 495 }
 496
 497 static void rc_update_pixbuf(void *renderer, gboolean lazy)
 498 {
 499         RendererClutter *rc = (RendererClutter *)renderer;
 500         PixbufRenderer *pr = rc->pr;
 501
 502         DEBUG_0("rc_update_pixbuf");
 503
 504         rc_remove_pending_updates(rc);
 505
 506         rc->last_pixbuf_change = g_get_monotonic_time();
 507         DEBUG_0("%s change time reset", get_exec_time());
 508
 509         if (pr->pixbuf)
 510                 {
 511                 gint width = gdk_pixbuf_get_width(pr->pixbuf);
 512                 gint height = gdk_pixbuf_get_height(pr->pixbuf);
 513
 514                 DEBUG_0("pixbuf size %d x %d (%d)", width, height, gdk_pixbuf_get_has_alpha(pr->pixbuf) ? 32 : 24);
 515
 516                 gint prev_width, prev_height;
 517
 518                 if (pr->stereo_data == STEREO_PIXBUF_SBS || pr->stereo_data == STEREO_PIXBUF_CROSS)
 519                         {
 520                         width /= 2;
 521                         }
 522
 523
 524                 clutter_texture_get_base_size(CLUTTER_TEXTURE(rc->texture), &prev_width, &prev_height);
 525
 526                 if (width != prev_width || height != prev_height)
 527                         {
 528                         /* FIXME use CoglMaterial with multiple textures for background, color management, anaglyph, ... */
 529                         CoglHandle texture = cogl_texture_new_with_size(width,
 530                                                                         height,
 531                                                                         COGL_TEXTURE_NO_AUTO_MIPMAP | COGL_TEXTURE_NO_SLICING,
 532                                                                         gdk_pixbuf_get_has_alpha(pr->pixbuf) ? COGL_PIXEL_FORMAT_BGRA_8888 : COGL_PIXEL_FORMAT_BGR_888);
 533
 534                         if (texture != COGL_INVALID_HANDLE)
 535                                 {
 536                                 clutter_texture_set_cogl_texture(CLUTTER_TEXTURE(rc->texture), texture);
 537                                 cogl_handle_unref(texture);
 538                                 }
 539                         }
 540                 clutter_actor_set_clip(rc->texture, 0, 0, 0, 0); /* visible area is extended as area_changed events arrive */
 541                 if (!lazy)
 542                         {
 543                         rc_area_changed(renderer, GET_RIGHT_PIXBUF_OFFSET(rc), 0, width, height);
 544                         }
 545                 }
 546
 547         rc->clut_updated = FALSE;
 548 }
 549
 550
 551
 552 static void rc_update_zoom(void *renderer, gboolean lazy)
 553 {
 554         RendererClutter *rc = (RendererClutter *)renderer;
 555
 556         DEBUG_0("rc_update_zoom");
 557         rc_sync_actor(rc);
 558 }
 559
 560 static void rc_invalidate_region(void *renderer, gint x, gint y, gint w, gint h)
 561 {
 562 }
 563
 564 static OverlayData *rc_overlay_find(RendererClutter *rc, gint id)
 565 {
 566         GList *work;
 567
 568         work = rc->overlay_list;
 569         while (work)
 570                 {
 571                 OverlayData *od = work->data;
 572                 work = work->next;
 573
 574                 if (od->id == id) return od;
 575                 }
 576
 577         return NULL;
 578 }
 579
 580 static void rc_overlay_actor_destroy_cb(ClutterActor *actor, gpointer user_data)
 581 {
 582         OverlayData *od = user_data;
 583         od->actor = NULL;
 584 }
 585
 586 static void rc_overlay_free(RendererClutter *rc, OverlayData *od)
 587 {
 588         rc->overlay_list = g_list_remove(rc->overlay_list, od);
 589
 590         if (od->pixbuf) g_object_unref(G_OBJECT(od->pixbuf));
 591         if (od->actor) clutter_actor_destroy(od->actor);
 592         g_free(od);
 593 }
 594
 595 static void rc_overlay_update_position(RendererClutter *rc, OverlayData *od)
 596 {
 597         gint px, py, pw, ph;
 598
 599         pw = gdk_pixbuf_get_width(od->pixbuf);
 600         ph = gdk_pixbuf_get_height(od->pixbuf);
 601         px = od->x;
 602         py = od->y;
 603
 604         if (od->flags & OVL_RELATIVE)
 605                 {
 606                 if (px < 0) px = rc->pr->viewport_width - pw + px;
 607                 if (py < 0) py = rc->pr->viewport_height - ph + py;
 608                 }
 609         if (od->actor) clutter_actor_set_position(od->actor, px, py);
 610 }
 611
 612 static void rc_overlay_update_positions(RendererClutter *rc)
 613 {
 614         GList *work;
 615
 616         work = rc->overlay_list;
 617         while (work)
 618                 {
 619                 OverlayData *od = work->data;
 620                 work = work->next;
 621
 622                 rc_overlay_update_position(rc, od);
 623                 }
 624 }
 625
 626 static void rc_overlay_free_all(RendererClutter *rc)
 627 {
 628         GList *work;
 629
 630         work = rc->overlay_list;
 631         while (work)
 632                 {
 633                 OverlayData *od = work->data;
 634                 work = work->next;
 635
 636                 rc_overlay_free(rc, od);
 637                 }
 638 }
 639
 640 static gint rc_overlay_add(void *renderer, GdkPixbuf *pixbuf, gint x, gint y, OverlayRendererFlags flags)
 641 {
 642         RendererClutter *rc = (RendererClutter *)renderer;
 643         PixbufRenderer *pr = rc->pr;
 644         OverlayData *od;
 645         gint id;
 646
 647         g_return_val_if_fail(IS_PIXBUF_RENDERER(pr), -1);
 648         g_return_val_if_fail(pixbuf != NULL, -1);
 649
 650         id = 1;
 651         while (rc_overlay_find(rc, id)) id++;
 652
 653         od = g_new0(OverlayData, 1);
 654         od->id = id;
 655         od->pixbuf = pixbuf;
 656         g_object_ref(G_OBJECT(od->pixbuf));
 657         od->x = x;
 658         od->y = y;
 659         od->flags = flags;
 660
 661         od->actor = gtk_clutter_texture_new();
 662         g_signal_connect (od->actor, "destroy", G_CALLBACK(rc_overlay_actor_destroy_cb), od);
 663
 664         gtk_clutter_texture_set_from_pixbuf(GTK_CLUTTER_TEXTURE (od->actor), pixbuf, NULL);
 665         clutter_container_add_actor(CLUTTER_CONTAINER(rc->group), od->actor);
 666
 667         rc->overlay_list = g_list_append(rc->overlay_list, od);
 668         rc_overlay_update_position(rc, od);
 669
 670         return od->id;
 671 }
 672
 673 static void rc_overlay_set(void *renderer, gint id, GdkPixbuf *pixbuf, gint x, gint y)
 674 {
 675         RendererClutter *rc = (RendererClutter *)renderer;
 676         PixbufRenderer *pr = rc->pr;
 677         OverlayData *od;
 678
 679         g_return_if_fail(IS_PIXBUF_RENDERER(pr));
 680
 681         od = rc_overlay_find(rc, id);
 682         if (!od) return;
 683
 684         if (pixbuf)
 685                 {
 686                 g_object_ref(G_OBJECT(pixbuf));
 687                 g_object_unref(G_OBJECT(od->pixbuf));
 688                 od->pixbuf = pixbuf;
 689
 690                 od->x = x;
 691                 od->y = y;
 692
 693                 if (od->actor) gtk_clutter_texture_set_from_pixbuf(GTK_CLUTTER_TEXTURE(od->actor), pixbuf, NULL);
 694                 rc_overlay_update_position(rc, od);
 695                 }
 696         else
 697                 {
 698                 rc_overlay_free(rc, od);
 699                 }
 700 }
 701
 702 static gboolean rc_overlay_get(void *renderer, gint id, GdkPixbuf **pixbuf, gint *x, gint *y)
 703 {
 704         RendererClutter *rc = (RendererClutter *)renderer;
 705
 706         PixbufRenderer *pr = rc->pr;
 707         OverlayData *od;
 708
 709         g_return_val_if_fail(IS_PIXBUF_RENDERER(pr), FALSE);
 710
 711         od = rc_overlay_find(rc, id);
 712         if (!od) return FALSE;
 713
 714         if (pixbuf) *pixbuf = od->pixbuf;
 715         if (x) *x = od->x;
 716         if (y) *y = od->y;
 717
 718         return TRUE;
 719 }
 720
 721
 722 static void rc_update_viewport(void *renderer)
 723 {
 724         RendererClutter *rc = (RendererClutter *)renderer;
 725         ClutterColor stage_color = { 0x00, 0x00, 0x00, 0xff };
 726
 727         rc->stereo_off_x = 0;
 728         rc->stereo_off_y = 0;
 729
 730         if (rc->stereo_mode & PR_STEREO_RIGHT)
 731                 {
 732                 if (rc->stereo_mode & PR_STEREO_HORIZ)
 733                         {
 734                         rc->stereo_off_x = rc->pr->viewport_width;
 735                         }
 736                 else if (rc->stereo_mode & PR_STEREO_VERT)
 737                         {
 738                         rc->stereo_off_y = rc->pr->viewport_height;
 739                         }
 740                 else if (rc->stereo_mode & PR_STEREO_FIXED)
 741                         {
 742                         rc->stereo_off_x = rc->pr->stereo_fixed_x_right;
 743                         rc->stereo_off_y = rc->pr->stereo_fixed_y_right;
 744                         }
 745                 }
 746         else
 747                 {
 748                 if (rc->stereo_mode & PR_STEREO_FIXED)
 749                         {
 750                         rc->stereo_off_x = rc->pr->stereo_fixed_x_left;
 751                         rc->stereo_off_y = rc->pr->stereo_fixed_y_left;
 752                         }
 753                 }
 754         DEBUG_0("rc_update_viewport  scale %d %d", rc->pr->width, rc->pr->height);
 755
 756         clutter_stage_set_color(CLUTTER_STAGE(rc->stage), &stage_color);
 757
 758
 759         clutter_actor_set_size(rc->group, rc->pr->viewport_width, rc->pr->viewport_height);
 760         clutter_actor_set_position(rc->group, rc->stereo_off_x, rc->stereo_off_y);
 761
 762         clutter_actor_set_rotation(CLUTTER_ACTOR(rc->group),
 763                                                 CLUTTER_Y_AXIS,
 764                                                 (rc->stereo_mode & PR_STEREO_MIRROR) ? 180 : 0,
 765                                                 rc->pr->viewport_width / 2.0, 0, 0);
 766
 767         clutter_actor_set_rotation(CLUTTER_ACTOR(rc->group),
 768                                                 CLUTTER_X_AXIS,
 769                                                 (rc->stereo_mode & PR_STEREO_FLIP) ? 180 : 0,
 770                                                 0, rc->pr->viewport_height / 2.0, 0);
 771
 772         rc_sync_actor(rc);
 773         rc_overlay_update_positions(rc);
 774 }
 775
 776 static void rc_scroll(void *renderer, gint x_off, gint y_off)
 777 {
 778         DEBUG_0("rc_scroll");
 779         RendererClutter *rc = (RendererClutter *)renderer;
 780
 781         rc_sync_actor(rc);
 782 }
 783
 784 static void rc_stereo_set(void *renderer, gint stereo_mode)
 785 {
 786         RendererClutter *rc = (RendererClutter *)renderer;
 787
 788         rc->stereo_mode = stereo_mode;
 789 }
 790
 791 static void rc_free(void *renderer)
 792 {
 793         RendererClutter *rc = (RendererClutter *)renderer;
 794         GtkWidget *widget = gtk_bin_get_child(GTK_BIN(rc->pr));
 795
 796         rc_remove_pending_updates(rc);
 797
 798         rc_overlay_free_all(rc);
 799
 800         if (widget)
 801                 {
 802                 /* widget still exists */
 803                 clutter_actor_destroy(rc->group);
 804                 if (clutter_group_get_n_children(CLUTTER_GROUP(rc->stage)) == 0)
 805                         {
 806                         DEBUG_1("destroy %p", rc->widget);
 807                         /* this was the last user */
 808                         gtk_widget_destroy(rc->widget);
 809                         }
 810                 else
 811                         {
 812                         DEBUG_1("keep %p", rc->widget);
 813                         g_object_unref(G_OBJECT(rc->widget));
 814                         }
 815                 }
 816         g_free(rc);
 817 }
 818
 819 /* initialize shader for transparency background checker */
 820 static void renderer_clutter_init_checker_shader(RendererClutter *rc)
 821 {
 822         const RendererClutterShaderInfo info = {
 823                 16.0,                           /* checker size */
 824                 {0.6, 0.6, 0.6},        /* color 0 */
 825                 {0.4, 0.4, 0.4}         /* color 1 */
 826         };
 827         rc_set_shader(clutter_texture_get_cogl_material(CLUTTER_TEXTURE(rc->texture)), &info);
 828 }
 829
 830 RendererFuncs *renderer_clutter_new(PixbufRenderer *pr)
 831 {
 832         RendererClutter *rc = g_new0(RendererClutter, 1);
 833
 834         rc->pr = pr;
 835
 836         rc->f.area_changed = rc_area_changed;
 837         rc->f.update_pixbuf = rc_update_pixbuf;
 838         rc->f.free = rc_free;
 839         rc->f.update_zoom = rc_update_zoom;
 840         rc->f.invalidate_region = rc_invalidate_region;
 841         rc->f.scroll = rc_scroll;
 842         rc->f.update_viewport = rc_update_viewport;
 843
 844
 845         rc->f.overlay_add = rc_overlay_add;
 846         rc->f.overlay_set = rc_overlay_set;
 847         rc->f.overlay_get = rc_overlay_get;
 848
 849         rc->f.stereo_set = rc_stereo_set;
 850
 851
 852         rc->stereo_mode = 0;
 853         rc->stereo_off_x = 0;
 854         rc->stereo_off_y = 0;
 855
 856         rc->idle_update = 0;
 857         rc->pending_updates = NULL;
 858
 859         rc->widget = gtk_bin_get_child(GTK_BIN(rc->pr));
 860
 861         if (rc->widget)
 862                 {
 863                 if (!GTK_CLUTTER_IS_EMBED(rc->widget))
 864                         {
 865                         g_free(rc);
 866                         DEBUG_0("pixbuf renderer has a child of other type than gtk_clutter_embed");
 867                         return NULL;
 868                         }
 869                 }
 870         else
 871                 {
 872                 rc->widget = gtk_clutter_embed_new();
 873                 gtk_container_add(GTK_CONTAINER(rc->pr), rc->widget);
 874                 }
 875
 876         gtk_event_box_set_above_child (GTK_EVENT_BOX(rc->pr), TRUE);
 877         rc->stage = gtk_clutter_embed_get_stage (GTK_CLUTTER_EMBED (rc->widget));
 878
 879         rc->group = clutter_group_new();
 880         clutter_container_add_actor(CLUTTER_CONTAINER(rc->stage), rc->group);
 881         clutter_actor_set_clip_to_allocation(CLUTTER_ACTOR(rc->group), TRUE);
 882
 883         rc->texture = clutter_texture_new ();
 884         clutter_container_add_actor(CLUTTER_CONTAINER(rc->group), rc->texture);
 885
 886         renderer_clutter_init_checker_shader(rc);
 887         g_object_ref(G_OBJECT(rc->widget));
 888
 889         gtk_widget_show(rc->widget);
 890         return (RendererFuncs *) rc;
 891 }
 892
 893 #endif
 894 /* vim: set shiftwidth=8 softtabstop=0 cindent cinoptions={1s: */