src/renderer-tiles.c

   1 /*
   2  * Geeqie
   3  * (C) 2006 John Ellis
   4  * Copyright (C) 2008 - 2010 The Geeqie Team
   5  *
   6  * Author: John Ellis
   7  *
   8  * This software is released under the GNU General Public License (GNU GPL).
   9  * Please read the included file COPYING for more information.
  10  * This software comes with no warranty of any kind, use at your own risk!
  11  */
  12
  13 #include <stdio.h>
  14 #include <stdlib.h>
  15 #include <string.h>
  16 #include <math.h>
  17
  18 #include "main.h"
  19 #include "pixbuf-renderer.h"
  20 #include "renderer-tiles.h"
  21
  22 #include "intl.h"
  23 #include "layout.h"
  24
  25 #include <gtk/gtk.h>
  26
  27
  28 /* comment this out if not using this from within Geeqie
  29  * defining GQ_BUILD does these things:
  30  *   - Sets the shift-click scroller pixbuf to a nice icon instead of a black box
  31  */
  32 #define GQ_BUILD 1
  33
  34 #ifdef GQ_BUILD
  35 #include "main.h"
  36 #include "pixbuf_util.h"
  37 #include "exif.h"
  38 #else
  39 typedef enum {
  40         EXIF_ORIENTATION_UNKNOWN        = 0,
  41         EXIF_ORIENTATION_TOP_LEFT       = 1,
  42         EXIF_ORIENTATION_TOP_RIGHT      = 2,
  43         EXIF_ORIENTATION_BOTTOM_RIGHT   = 3,
  44         EXIF_ORIENTATION_BOTTOM_LEFT    = 4,
  45         EXIF_ORIENTATION_LEFT_TOP       = 5,
  46         EXIF_ORIENTATION_RIGHT_TOP      = 6,
  47         EXIF_ORIENTATION_RIGHT_BOTTOM   = 7,
  48         EXIF_ORIENTATION_LEFT_BOTTOM    = 8
  49 } ExifOrientationType;
  50 #endif
  51
  52
  53 /* size to use when breaking up image pane for rendering */
  54 #define PR_TILE_SIZE 128
  55
  56 typedef struct _ImageTile ImageTile;
  57 typedef struct _QueueData QueueData;
  58
  59 struct _ImageTile
  60 {
  61         GdkPixmap *pixmap;      /* off screen buffer */
  62         GdkPixbuf *pixbuf;      /* pixbuf area for zooming */
  63         gint x;                 /* x offset into image */
  64         gint y;                 /* y offset into image */
  65         gint w;                 /* width that is visible (may be less if at edge of image) */
  66         gint h;                 /* height '' */
  67
  68         gboolean blank;
  69
  70 /* render_todo: (explanation)
  71         NONE    do nothing
  72         AREA    render area of tile, usually only used when loading an image
  73                 note: will jump to an ALL if render_done is not ALL.
  74         ALL     render entire tile, if never done before w/ ALL, for expose events *only*
  75 */
  76
  77         ImageRenderType render_todo;    /* what to do (see above) */
  78         ImageRenderType render_done;    /* highest that has been done before on tile */
  79
  80         QueueData *qd;
  81         QueueData *qd2;
  82
  83         guint size;             /* est. memory used by pixmap and pixbuf */
  84 };
  85
  86 struct _QueueData
  87 {
  88         ImageTile *it;
  89         gint x;
  90         gint y;
  91         gint w;
  92         gint h;
  93         gboolean new_data;
  94 };
  95
  96 typedef struct _OverlayData OverlayData;
  97 struct _OverlayData
  98 {
  99         gint id;
 100
 101         GdkPixbuf *pixbuf;
 102         GdkWindow *window;
 103
 104         gint x;
 105         gint y;
 106
 107         OverlayRendererFlags flags;
 108 };
 109
 110 typedef struct _RendererTiles RendererTiles;
 111
 112 struct _RendererTiles
 113 {
 114         RendererFuncs f;
 115         PixbufRenderer *pr;
 116
 117         gint tile_cache_max;            /* max mb to use for offscreen buffer */
 118
 119         gint tile_width;
 120         gint tile_height;
 121         gint tile_cols;         /* count of tile columns */
 122         GList *tiles;           /* list of buffer tiles */
 123         gint tile_cache_size;   /* allocated size of pixmaps/pixbufs */
 124         GList *draw_queue;      /* list of areas to redraw */
 125         GList *draw_queue_2pass;/* list when 2 pass is enabled */
 126
 127         GList *overlay_list;
 128         GdkPixmap *overlay_buffer;
 129
 130         guint draw_idle_id; /* event source id */
 131
 132         GdkPixbuf *spare_tile;
 133
 134         gint stereo_mode;
 135         gint stereo_off_x;
 136         gint stereo_off_y;
 137
 138         gint x_scroll;  /* allow local adjustment and mirroring */
 139         gint y_scroll;
 140
 141 };
 142
 143
 144 static void rt_border_draw(RendererTiles *rt, gint x, gint y, gint w, gint h);
 145 static void rt_overlay_draw(RendererTiles *rt, gint x, gint y, gint w, gint h, ImageTile *it);
 146
 147
 148 static void rt_tile_free_all(RendererTiles *rt);
 149 static void rt_tile_invalidate_region(RendererTiles *rt, gint x, gint y, gint w, gint h);
 150 static gboolean rt_tile_is_visible(RendererTiles *rt, ImageTile *it);
 151 static void rt_queue_clear(RendererTiles *rt);
 152 static void rt_queue_merge(QueueData *parent, QueueData *qd);
 153 static void rt_queue(RendererTiles *rt, gint x, gint y, gint w, gint h,
 154                      gint clamp, ImageRenderType render, gboolean new_data, gboolean only_existing);
 155
 156 static void rt_redraw(RendererTiles *rt, gboolean new_data);
 157
 158
 159 static void rt_signals_connect(RendererTiles *rt);
 160 static void rt_size_cb(GtkWidget *widget, GtkAllocation *allocation, gpointer data);
 161 static void rt_hierarchy_changed_cb(GtkWidget *widget, GtkWidget *previous_toplevel, gpointer data);
 162 static void pixbuf_renderer_paint(RendererTiles *rt, GdkRectangle *area);
 163 static gint rt_queue_draw_idle_cb(gpointer data);
 164
 165
 166 static void rt_sync_scroll(RendererTiles *rt)
 167 {
 168         PixbufRenderer *pr = rt->pr;
 169
 170         rt->x_scroll = (rt->stereo_mode & PR_STEREO_MIRROR) ?
 171                        pr->width - pr->vis_width - pr->x_scroll
 172                        : pr->x_scroll;
 173
 174         rt->y_scroll = (rt->stereo_mode & PR_STEREO_FLIP) ?
 175                        pr->height - pr->vis_height - pr->y_scroll
 176                        : pr->y_scroll;
 177 }
 178
 179 /*
 180  *-------------------------------------------------------------------
 181  * borders
 182  *-------------------------------------------------------------------
 183  */
 184
 185 static void rt_border_draw(RendererTiles *rt, gint x, gint y, gint w, gint h)
 186 {
 187         PixbufRenderer *pr = rt->pr;
 188         GtkWidget *box;
 189         gint rx, ry, rw, rh;
 190
 191         box = GTK_WIDGET(pr);
 192
 193         if (!box->window) return;
 194
 195         if (!pr->pixbuf && !pr->source_tiles_enabled)
 196                 {
 197                 if (pr_clip_region(x, y, w, h,
 198                                    0, 0,
 199                                    pr->viewport_width, pr->viewport_height,
 200                                    &rx, &ry, &rw, &rh))
 201                         {
 202                         gdk_window_clear_area(box->window, rx + rt->stereo_off_x, ry + rt->stereo_off_y, rw, rh);
 203                         rt_overlay_draw(rt, rx, ry, rw, rh, NULL);
 204                         }
 205                 return;
 206                 }
 207
 208         if (pr->vis_width < pr->viewport_width)
 209                 {
 210                 if (pr->x_offset > 0 &&
 211                     pr_clip_region(x, y, w, h,
 212                                    0, 0,
 213                                    pr->x_offset, pr->viewport_height,
 214                                    &rx, &ry, &rw, &rh))
 215                         {
 216                         gdk_window_clear_area(box->window, rx + rt->stereo_off_x, ry + rt->stereo_off_y, rw, rh);
 217                         rt_overlay_draw(rt, rx, ry, rw, rh, NULL);
 218                         }
 219                 if (pr->viewport_width - pr->vis_width - pr->x_offset > 0 &&
 220                     pr_clip_region(x, y, w, h,
 221                                    pr->x_offset + pr->vis_width, 0,
 222                                    pr->viewport_width - pr->vis_width - pr->x_offset, pr->viewport_height,
 223                                    &rx, &ry, &rw, &rh))
 224                         {
 225                         gdk_window_clear_area(box->window, rx + rt->stereo_off_x, ry + rt->stereo_off_y, rw, rh);
 226                         rt_overlay_draw(rt, rx, ry, rw, rh, NULL);
 227                         }
 228                 }
 229         if (pr->vis_height < pr->viewport_height)
 230                 {
 231                 if (pr->y_offset > 0 &&
 232                     pr_clip_region(x, y, w, h,
 233                                    pr->x_offset, 0,
 234                                    pr->vis_width, pr->y_offset,
 235                                    &rx, &ry, &rw, &rh))
 236                         {
 237                         gdk_window_clear_area(box->window, rx + rt->stereo_off_x, ry + rt->stereo_off_y, rw, rh);
 238                         rt_overlay_draw(rt, rx, ry, rw, rh, NULL);
 239                         }
 240                 if (pr->viewport_height - pr->vis_height - pr->y_offset > 0 &&
 241                     pr_clip_region(x, y, w, h,
 242                                    pr->x_offset, pr->y_offset + pr->vis_height,
 243                                    pr->vis_width, pr->viewport_height - pr->vis_height - pr->y_offset,
 244                                    &rx, &ry, &rw, &rh))
 245                         {
 246                         gdk_window_clear_area(box->window, rx + rt->stereo_off_x, ry + rt->stereo_off_y, rw, rh);
 247                         rt_overlay_draw(rt, rx, ry, rw, rh, NULL);
 248                         }
 249                 }
 250 }
 251
 252 static void rt_border_clear(RendererTiles *rt)
 253 {
 254         PixbufRenderer *pr = rt->pr;
 255         rt_border_draw(rt, 0, 0, pr->viewport_width, pr->viewport_height);
 256 }
 257
 258
 259 /*
 260  *-------------------------------------------------------------------
 261  * display tiles
 262  *-------------------------------------------------------------------
 263  */
 264
 265 static ImageTile *rt_tile_new(gint x, gint y, gint width, gint height)
 266 {
 267         ImageTile *it;
 268
 269         it = g_new0(ImageTile, 1);
 270
 271         it->x = x;
 272         it->y = y;
 273         it->w = width;
 274         it->h = height;
 275
 276         it->render_done = TILE_RENDER_NONE;
 277
 278         return it;
 279 }
 280
 281 static void rt_tile_free(ImageTile *it)
 282 {
 283         if (!it) return;
 284
 285         if (it->pixbuf) g_object_unref(it->pixbuf);
 286         if (it->pixmap) g_object_unref(it->pixmap);
 287
 288         g_free(it);
 289 }
 290
 291 static void rt_tile_free_all(RendererTiles *rt)
 292 {
 293         GList *work;
 294
 295         work = rt->tiles;
 296         while (work)
 297                 {
 298                 ImageTile *it;
 299
 300                 it = work->data;
 301                 work = work->next;
 302
 303                 rt_tile_free(it);
 304                 }
 305
 306         g_list_free(rt->tiles);
 307         rt->tiles = NULL;
 308         rt->tile_cache_size = 0;
 309 }
 310
 311 static ImageTile *rt_tile_add(RendererTiles *rt, gint x, gint y)
 312 {
 313         PixbufRenderer *pr = rt->pr;
 314         ImageTile *it;
 315
 316         it = rt_tile_new(x, y, rt->tile_width, rt->tile_height);
 317
 318         if (it->x + it->w > pr->width) it->w = pr->width - it->x;
 319         if (it->y + it->h > pr->height) it->h = pr->height - it->y;
 320
 321         rt->tiles = g_list_prepend(rt->tiles, it);
 322         rt->tile_cache_size += it->size;
 323
 324         return it;
 325 }
 326
 327 static void rt_tile_remove(RendererTiles *rt, ImageTile *it)
 328 {
 329         if (it->qd)
 330                 {
 331                 QueueData *qd = it->qd;
 332
 333                 it->qd = NULL;
 334                 rt->draw_queue = g_list_remove(rt->draw_queue, qd);
 335                 g_free(qd);
 336                 }
 337
 338         if (it->qd2)
 339                 {
 340                 QueueData *qd = it->qd2;
 341
 342                 it->qd2 = NULL;
 343                 rt->draw_queue_2pass = g_list_remove(rt->draw_queue_2pass, qd);
 344                 g_free(qd);
 345                 }
 346
 347         rt->tiles = g_list_remove(rt->tiles, it);
 348         rt->tile_cache_size -= it->size;
 349
 350         rt_tile_free(it);
 351 }
 352
 353 static void rt_tile_free_space(RendererTiles *rt, guint space, ImageTile *it)
 354 {
 355         PixbufRenderer *pr = rt->pr;
 356         GList *work;
 357         guint tile_max;
 358
 359         work = g_list_last(rt->tiles);
 360
 361         if (pr->source_tiles_enabled && pr->scale < 1.0)
 362                 {
 363                 gint tiles;
 364
 365                 tiles = (pr->vis_width / rt->tile_width + 1) * (pr->vis_height / rt->tile_height + 1);
 366                 tile_max = MAX(tiles * rt->tile_width * rt->tile_height * 3,
 367                                (gint)((gdouble)rt->tile_cache_max * 1048576.0 * pr->scale));
 368                 }
 369         else
 370                 {
 371                 tile_max = rt->tile_cache_max * 1048576;
 372                 }
 373
 374         while (work && rt->tile_cache_size + space > tile_max)
 375                 {
 376                 ImageTile *needle;
 377
 378                 needle = work->data;
 379                 work = work->prev;
 380                 if (needle != it &&
 381                     ((!needle->qd && !needle->qd2) || !rt_tile_is_visible(rt, needle))) rt_tile_remove(rt, needle);
 382                 }
 383 }
 384
 385 static void rt_tile_invalidate_all(RendererTiles *rt)
 386 {
 387         PixbufRenderer *pr = rt->pr;
 388         GList *work;
 389
 390         work = rt->tiles;
 391         while (work)
 392                 {
 393                 ImageTile *it;
 394
 395                 it = work->data;
 396                 work = work->next;
 397
 398                 it->render_done = TILE_RENDER_NONE;
 399                 it->render_todo = TILE_RENDER_ALL;
 400                 it->blank = FALSE;
 401
 402                 it->w = MIN(rt->tile_width, pr->width - it->x);
 403                 it->h = MIN(rt->tile_height, pr->height - it->y);
 404                 }
 405 }
 406
 407 static void rt_tile_invalidate_region(RendererTiles *rt, gint x, gint y, gint w, gint h)
 408 {
 409         gint x1, x2;
 410         gint y1, y2;
 411         GList *work;
 412
 413         x1 = ROUND_DOWN(x, rt->tile_width);
 414         x2 = ROUND_UP(x + w, rt->tile_width);
 415
 416         y1 = ROUND_DOWN(y, rt->tile_height);
 417         y2 = ROUND_UP(y + h, rt->tile_height);
 418
 419         work = rt->tiles;
 420         while (work)
 421                 {
 422                 ImageTile *it;
 423
 424                 it = work->data;
 425                 work = work->next;
 426
 427                 if (it->x < x2 && it->x + it->w > x1 &&
 428                     it->y < y2 && it->y + it->h > y1)
 429                         {
 430                         it->render_done = TILE_RENDER_NONE;
 431                         it->render_todo = TILE_RENDER_ALL;
 432                         }
 433                 }
 434 }
 435
 436 static ImageTile *rt_tile_get(RendererTiles *rt, gint x, gint y, gboolean only_existing)
 437 {
 438         GList *work;
 439
 440         work = rt->tiles;
 441         while (work)
 442                 {
 443                 ImageTile *it;
 444
 445                 it = work->data;
 446                 if (it->x == x && it->y == y)
 447                         {
 448                         rt->tiles = g_list_delete_link(rt->tiles, work);
 449                         rt->tiles = g_list_prepend(rt->tiles, it);
 450                         return it;
 451                         }
 452
 453                 work = work->next;
 454                 }
 455
 456         if (only_existing) return NULL;
 457
 458         return rt_tile_add(rt, x, y);
 459 }
 460
 461 static gint pixmap_calc_size(GdkPixmap *pixmap)
 462 {
 463         gint w, h, d;
 464
 465         d = gdk_drawable_get_depth(pixmap);
 466         gdk_drawable_get_size(pixmap, &w, &h);
 467         return w * h * (d / 8);
 468 }
 469
 470 static void rt_tile_prepare(RendererTiles *rt, ImageTile *it)
 471 {
 472         PixbufRenderer *pr = rt->pr;
 473         if (!it->pixmap)
 474                 {
 475                 GdkPixmap *pixmap;
 476                 guint size;
 477
 478                 pixmap = gdk_pixmap_new(((GtkWidget *)pr)->window, rt->tile_width, rt->tile_height, -1);
 479
 480                 size = pixmap_calc_size(pixmap);
 481                 rt_tile_free_space(rt, size, it);
 482
 483                 it->pixmap = pixmap;
 484                 it->size += size;
 485                 rt->tile_cache_size += size;
 486                 }
 487
 488         if ((pr->zoom != 1.0 || pr->source_tiles_enabled || (pr->pixbuf && gdk_pixbuf_get_has_alpha(pr->pixbuf)) ||
 489              pr->orientation != EXIF_ORIENTATION_TOP_LEFT || pr->func_post_process) && !it->pixbuf)
 490                 {
 491                 GdkPixbuf *pixbuf;
 492                 guint size;
 493                         {
 494                         pixbuf = gdk_pixbuf_new(GDK_COLORSPACE_RGB, FALSE, 8, rt->tile_width, rt->tile_height);
 495                         }
 496
 497                 size = gdk_pixbuf_get_rowstride(pixbuf) * rt->tile_height;
 498                 rt_tile_free_space(rt, size, it);
 499
 500                 it->pixbuf = pixbuf;
 501                 it->size += size;
 502                 rt->tile_cache_size += size;
 503                 }
 504 }
 505
 506 /*
 507  *-------------------------------------------------------------------
 508  * overlays
 509  *-------------------------------------------------------------------
 510  */
 511
 512 static void rt_overlay_get_position(RendererTiles *rt, OverlayData *od,
 513                                     gint *x, gint *y, gint *w, gint *h)
 514 {
 515         PixbufRenderer *pr = rt->pr;
 516         gint px, py, pw, ph;
 517
 518         pw = gdk_pixbuf_get_width(od->pixbuf);
 519         ph = gdk_pixbuf_get_height(od->pixbuf);
 520         px = od->x;
 521         py = od->y;
 522
 523         if (od->flags & OVL_RELATIVE)
 524                 {
 525                 if (px < 0) px = pr->viewport_width - pw + px;
 526                 if (py < 0) py = pr->viewport_height - ph + py;
 527                 }
 528
 529         if (x) *x = px;
 530         if (y) *y = py;
 531         if (w) *w = pw;
 532         if (h) *h = ph;
 533 }
 534
 535 static void rt_overlay_init_window(RendererTiles *rt, OverlayData *od)
 536 {
 537         PixbufRenderer *pr = rt->pr;
 538         gint px, py, pw, ph;
 539         GdkWindowAttr attributes;
 540         gint attributes_mask;
 541
 542         rt_overlay_get_position(rt, od, &px, &py, &pw, &ph);
 543
 544         attributes.window_type = GDK_WINDOW_CHILD;
 545         attributes.wclass = GDK_INPUT_OUTPUT;
 546         attributes.width = pw;
 547         attributes.height = ph;
 548         attributes.event_mask = GDK_EXPOSURE_MASK;
 549         attributes_mask = 0;
 550
 551         od->window = gdk_window_new(GTK_WIDGET(pr)->window, &attributes, attributes_mask);
 552         gdk_window_set_user_data(od->window, pr);
 553         gdk_window_move(od->window, px + rt->stereo_off_x, py + rt->stereo_off_y);
 554         gdk_window_show(od->window);
 555 }
 556
 557 static void rt_overlay_draw(RendererTiles *rt, gint x, gint y, gint w, gint h,
 558                             ImageTile *it)
 559 {
 560         PixbufRenderer *pr = rt->pr;
 561         GtkWidget *box;
 562         GList *work;
 563
 564         box = GTK_WIDGET(pr);
 565
 566         work = rt->overlay_list;
 567         while (work)
 568                 {
 569                 OverlayData *od;
 570                 gint px, py, pw, ph;
 571                 gint rx, ry, rw, rh;
 572
 573                 od = work->data;
 574                 work = work->next;
 575
 576                 if (!od->window) rt_overlay_init_window(rt, od);
 577
 578                 rt_overlay_get_position(rt, od, &px, &py, &pw, &ph);
 579                 if (pr_clip_region(x, y, w, h, px, py, pw, ph, &rx, &ry, &rw, &rh))
 580                         {
 581                         if (!rt->overlay_buffer)
 582                                 {
 583                                 rt->overlay_buffer = gdk_pixmap_new(((GtkWidget *)pr)->window, rt->tile_width, rt->tile_height, -1);
 584                                 }
 585
 586                         if (it)
 587                                 {
 588 #if GTK_CHECK_VERSION(2,20,0)
 589                                 gdk_draw_drawable(rt->overlay_buffer, box->style->fg_gc[gtk_widget_get_state(box)],
 590 #else
 591                                 gdk_draw_drawable(rt->overlay_buffer, box->style->fg_gc[GTK_WIDGET_STATE(box)],
 592 #endif
 593                                                   it->pixmap,
 594                                                   rx - (pr->x_offset + (it->x - rt->x_scroll)),
 595                                                   ry - (pr->y_offset + (it->y - rt->y_scroll)),
 596                                                   0, 0, rw, rh);
 597                                 gdk_draw_pixbuf(rt->overlay_buffer,
 598 #if GTK_CHECK_VERSION(2,20,0)
 599                                                 box->style->fg_gc[gtk_widget_get_state(box)],
 600 #else
 601                                                 box->style->fg_gc[GTK_WIDGET_STATE(box)],
 602 #endif
 603                                                 od->pixbuf,
 604                                                 rx - px, ry - py,
 605                                                 0, 0, rw, rh,
 606                                                 pr->dither_quality, rx, ry);
 607 #if GTK_CHECK_VERSION(2,20,0)
 608                                 gdk_draw_drawable(od->window, box->style->fg_gc[gtk_widget_get_state(box)],
 609 #else
 610                                 gdk_draw_drawable(od->window, box->style->fg_gc[GTK_WIDGET_STATE(box)],
 611 #endif
 612                                                   rt->overlay_buffer,
 613                                                   0, 0,
 614                                                   rx - px, ry - py, rw, rh);
 615                                 }
 616                         else
 617                                 {
 618                                 /* no ImageTile means region may be larger than our scratch buffer */
 619                                 gint sx, sy;
 620
 621                                 for (sx = rx; sx < rx + rw; sx += rt->tile_width)
 622                                     for (sy = ry; sy < ry + rh; sy += rt->tile_height)
 623                                         {
 624                                         gint sw, sh;
 625
 626                                         sw = MIN(rx + rw - sx, rt->tile_width);
 627                                         sh = MIN(ry + rh - sy, rt->tile_height);
 628
 629                                         gdk_draw_rectangle(rt->overlay_buffer,
 630 #if GTK_CHECK_VERSION(2,20,0)
 631                                                            box->style->bg_gc[gtk_widget_get_state(box)], TRUE,
 632 #else
 633                                                            box->style->bg_gc[GTK_WIDGET_STATE(box)], TRUE,
 634 #endif
 635                                                            0, 0, sw, sh);
 636                                         gdk_draw_pixbuf(rt->overlay_buffer,
 637 #if GTK_CHECK_VERSION(2,20,0)
 638                                                         box->style->fg_gc[gtk_widget_get_state(box)],
 639 #else
 640                                                         box->style->fg_gc[GTK_WIDGET_STATE(box)],
 641 #endif
 642                                                         od->pixbuf,
 643                                                         sx - px, sy - py,
 644                                                         0, 0, sw, sh,
 645                                                         pr->dither_quality, sx, sy);
 646 #if GTK_CHECK_VERSION(2,20,0)
 647                                         gdk_draw_drawable(od->window, box->style->fg_gc[gtk_widget_get_state(box)],
 648 #else
 649                                         gdk_draw_drawable(od->window, box->style->fg_gc[GTK_WIDGET_STATE(box)],
 650 #endif
 651                                                           rt->overlay_buffer,
 652                                                           0, 0,
 653                                                           sx - px, sy - py, sw, sh);
 654                                         }
 655                                 }
 656                         }
 657                 }
 658 }
 659
 660 static void rt_overlay_queue_draw(RendererTiles *rt, OverlayData *od, gint x1, gint y1, gint x2, gint y2)
 661 {
 662         PixbufRenderer *pr = rt->pr;
 663         gint x, y, w, h;
 664
 665         rt_overlay_get_position(rt, od, &x, &y, &w, &h);
 666
 667         /* add borders */
 668         x -= x1;
 669         y -= y1;
 670         w += x1 + x2;
 671         h += y1 + y2;
 672
 673         rt_queue(rt, rt->x_scroll - pr->x_offset + x,
 674                  rt->y_scroll - pr->y_offset + y,
 675                  w, h,
 676                  FALSE, TILE_RENDER_ALL, FALSE, FALSE);
 677
 678         rt_border_draw(rt, x, y, w, h);
 679 }
 680
 681 static void rt_overlay_queue_all(RendererTiles *rt, gint x1, gint y1, gint x2, gint y2)
 682 {
 683         GList *work;
 684
 685         work = rt->overlay_list;
 686         while (work)
 687                 {
 688                 OverlayData *od = work->data;
 689                 work = work->next;
 690
 691                 rt_overlay_queue_draw(rt, od, x1, y1, x2, y2);
 692                 }
 693 }
 694
 695 static void rt_overlay_update_sizes(RendererTiles *rt)
 696 {
 697         GList *work;
 698
 699         work = rt->overlay_list;
 700         while (work)
 701                 {
 702                 OverlayData *od = work->data;
 703                 work = work->next;
 704
 705                 if (!od->window) rt_overlay_init_window(rt, od);
 706
 707                 if (od->flags & OVL_RELATIVE)
 708                         {
 709                         gint x, y, w, h;
 710
 711                         rt_overlay_get_position(rt, od, &x, &y, &w, &h);
 712                         gdk_window_move_resize(od->window, x + rt->stereo_off_x, y + rt->stereo_off_y, w, h);
 713                         }
 714                 }
 715 }
 716
 717 static OverlayData *rt_overlay_find(RendererTiles *rt, gint id)
 718 {
 719         GList *work;
 720
 721         work = rt->overlay_list;
 722         while (work)
 723                 {
 724                 OverlayData *od = work->data;
 725                 work = work->next;
 726
 727                 if (od->id == id) return od;
 728                 }
 729
 730         return NULL;
 731 }
 732
 733
 734 gint renderer_tiles_overlay_add(RendererTiles *rt, GdkPixbuf *pixbuf, gint x, gint y,
 735                                  OverlayRendererFlags flags)
 736 {
 737         PixbufRenderer *pr = rt->pr;
 738         OverlayData *od;
 739         gint id;
 740
 741         g_return_val_if_fail(IS_PIXBUF_RENDERER(pr), -1);
 742         g_return_val_if_fail(pixbuf != NULL, -1);
 743
 744         id = 1;
 745         while (rt_overlay_find(rt, id)) id++;
 746
 747         od = g_new0(OverlayData, 1);
 748         od->id = id;
 749         od->pixbuf = pixbuf;
 750         g_object_ref(G_OBJECT(od->pixbuf));
 751         od->x = x;
 752         od->y = y;
 753         od->flags = flags;
 754
 755         rt_overlay_init_window(rt, od);
 756
 757         rt->overlay_list = g_list_append(rt->overlay_list, od);
 758
 759         rt_overlay_queue_draw(rt, od, 0, 0, 0, 0);
 760
 761         return od->id;
 762 }
 763
 764 static void rt_overlay_free(RendererTiles *rt, OverlayData *od)
 765 {
 766         rt->overlay_list = g_list_remove(rt->overlay_list, od);
 767
 768         if (od->pixbuf) g_object_unref(G_OBJECT(od->pixbuf));
 769         if (od->window) gdk_window_destroy(od->window);
 770         g_free(od);
 771
 772         if (!rt->overlay_list && rt->overlay_buffer)
 773                 {
 774                 g_object_unref(rt->overlay_buffer);
 775                 rt->overlay_buffer = NULL;
 776                 }
 777 }
 778
 779 static void rt_overlay_list_clear(RendererTiles *rt)
 780 {
 781         while (rt->overlay_list)
 782                 {
 783                 OverlayData *od;
 784
 785                 od = rt->overlay_list->data;
 786                 rt_overlay_free(rt, od);
 787                 }
 788 }
 789
 790 static void rt_overlay_list_reset_window(RendererTiles *rt)
 791 {
 792         GList *work;
 793
 794         if (rt->overlay_buffer) g_object_unref(rt->overlay_buffer);
 795         rt->overlay_buffer = NULL;
 796
 797         work = rt->overlay_list;
 798         while (work)
 799                 {
 800                 OverlayData *od = work->data;
 801                 work = work->next;
 802                 if (od->window) gdk_window_destroy(od->window);
 803                 od->window = NULL;
 804                 }
 805 }
 806
 807 void renderer_tiles_overlay_set(RendererTiles *rt, gint id, GdkPixbuf *pixbuf, gint x, gint y)
 808 {
 809         PixbufRenderer *pr = rt->pr;
 810         OverlayData *od;
 811
 812         g_return_if_fail(IS_PIXBUF_RENDERER(pr));
 813
 814         od = rt_overlay_find(rt, id);
 815         if (!od) return;
 816
 817         if (pixbuf)
 818                 {
 819                 gint px, py, pw, ph;
 820
 821                 g_object_ref(G_OBJECT(pixbuf));
 822                 g_object_unref(G_OBJECT(od->pixbuf));
 823                 od->pixbuf = pixbuf;
 824
 825                 od->x = x;
 826                 od->y = y;
 827
 828                 if (!od->window) rt_overlay_init_window(rt, od);
 829
 830                 rt_overlay_queue_draw(rt, od, 0, 0, 0, 0);
 831                 rt_overlay_get_position(rt, od, &px, &py, &pw, &ph);
 832                 gdk_window_move_resize(od->window, px + rt->stereo_off_x, py + rt->stereo_off_y, pw, ph);
 833                 }
 834         else
 835                 {
 836                 rt_overlay_queue_draw(rt, od, 0, 0, 0, 0);
 837                 rt_overlay_free(rt, od);
 838                 }
 839 }
 840
 841 gboolean renderer_tiles_overlay_get(RendererTiles *rt, gint id, GdkPixbuf **pixbuf, gint *x, gint *y)
 842 {
 843         PixbufRenderer *pr = rt->pr;
 844         OverlayData *od;
 845
 846         g_return_val_if_fail(IS_PIXBUF_RENDERER(pr), FALSE);
 847
 848         od = rt_overlay_find(rt, id);
 849         if (!od) return FALSE;
 850
 851         if (pixbuf) *pixbuf = od->pixbuf;
 852         if (x) *x = od->x;
 853         if (y) *y = od->y;
 854
 855         return TRUE;
 856 }
 857
 858 static void rt_hierarchy_changed_cb(GtkWidget *widget, GtkWidget *previous_toplevel, gpointer data)
 859 {
 860         RendererTiles *rt = data;
 861         rt_overlay_list_reset_window(rt);
 862 }
 863
 864 /*
 865  *-------------------------------------------------------------------
 866  * drawing
 867  *-------------------------------------------------------------------
 868  */
 869
 870 static GdkPixbuf *rt_get_spare_tile(RendererTiles *rt)
 871 {
 872         if (!rt->spare_tile) rt->spare_tile = gdk_pixbuf_new(GDK_COLORSPACE_RGB, FALSE, 8, rt->tile_width, rt->tile_height);
 873         return rt->spare_tile;
 874 }
 875
 876 #define COLOR_BYTES 3   /* rgb */
 877
 878 static void rt_tile_rotate_90_clockwise(RendererTiles *rt, GdkPixbuf **tile, gint x, gint y, gint w, gint h)
 879 {
 880         GdkPixbuf *src = *tile;
 881         GdkPixbuf *dest;
 882         gint srs, drs;
 883         guchar *s_pix, *d_pix;
 884         guchar *sp, *dp;
 885         guchar *ip, *spi, *dpi;
 886         gint i, j;
 887         gint tw = rt->tile_width;
 888
 889         srs = gdk_pixbuf_get_rowstride(src);
 890         s_pix = gdk_pixbuf_get_pixels(src);
 891         spi = s_pix + (x * COLOR_BYTES);
 892
 893         dest = rt_get_spare_tile(rt);
 894         drs = gdk_pixbuf_get_rowstride(dest);
 895         d_pix = gdk_pixbuf_get_pixels(dest);
 896         dpi = d_pix + (tw - 1) * COLOR_BYTES;
 897
 898         for (i = y; i < y + h; i++)
 899                 {
 900                 sp = spi + (i * srs);
 901                 ip = dpi - (i * COLOR_BYTES);
 902                 for (j = x; j < x + w; j++)
 903                         {
 904                         dp = ip + (j * drs);
 905                         memcpy(dp, sp, COLOR_BYTES);
 906                         sp += COLOR_BYTES;
 907                         }
 908                 }
 909
 910         rt->spare_tile = src;
 911         *tile = dest;
 912 }
 913
 914 static void rt_tile_rotate_90_counter_clockwise(RendererTiles *rt, GdkPixbuf **tile, gint x, gint y, gint w, gint h)
 915 {
 916         GdkPixbuf *src = *tile;
 917         GdkPixbuf *dest;
 918         gint srs, drs;
 919         guchar *s_pix, *d_pix;
 920         guchar *sp, *dp;
 921         guchar *ip, *spi, *dpi;
 922         gint i, j;
 923         gint th = rt->tile_height;
 924
 925         srs = gdk_pixbuf_get_rowstride(src);
 926         s_pix = gdk_pixbuf_get_pixels(src);
 927         spi = s_pix + (x * COLOR_BYTES);
 928
 929         dest = rt_get_spare_tile(rt);
 930         drs = gdk_pixbuf_get_rowstride(dest);
 931         d_pix = gdk_pixbuf_get_pixels(dest);
 932         dpi = d_pix + (th - 1) * drs;
 933
 934         for (i = y; i < y + h; i++)
 935                 {
 936                 sp = spi + (i * srs);
 937                 ip = dpi + (i * COLOR_BYTES);
 938                 for (j = x; j < x + w; j++)
 939                         {
 940                         dp = ip - (j * drs);
 941                         memcpy(dp, sp, COLOR_BYTES);
 942                         sp += COLOR_BYTES;
 943                         }
 944                 }
 945
 946         rt->spare_tile = src;
 947         *tile = dest;
 948 }
 949
 950 static void rt_tile_mirror_only(RendererTiles *rt, GdkPixbuf **tile, gint x, gint y, gint w, gint h)
 951 {
 952         GdkPixbuf *src = *tile;
 953         GdkPixbuf *dest;
 954         gint srs, drs;
 955         guchar *s_pix, *d_pix;
 956         guchar *sp, *dp;
 957         guchar *spi, *dpi;
 958         gint i, j;
 959
 960         gint tw = rt->tile_width;
 961
 962         srs = gdk_pixbuf_get_rowstride(src);
 963         s_pix = gdk_pixbuf_get_pixels(src);
 964         spi = s_pix + (x * COLOR_BYTES);
 965
 966         dest = rt_get_spare_tile(rt);
 967         drs = gdk_pixbuf_get_rowstride(dest);
 968         d_pix = gdk_pixbuf_get_pixels(dest);
 969         dpi =  d_pix + (tw - x - 1) * COLOR_BYTES;
 970
 971         for (i = y; i < y + h; i++)
 972                 {
 973                 sp = spi + (i * srs);
 974                 dp = dpi + (i * drs);
 975                 for (j = 0; j < w; j++)
 976                         {
 977                         memcpy(dp, sp, COLOR_BYTES);
 978                         sp += COLOR_BYTES;
 979                         dp -= COLOR_BYTES;
 980                         }
 981                 }
 982
 983         rt->spare_tile = src;
 984         *tile = dest;
 985 }
 986
 987 static void rt_tile_mirror_and_flip(RendererTiles *rt, GdkPixbuf **tile, gint x, gint y, gint w, gint h)
 988 {
 989         GdkPixbuf *src = *tile;
 990         GdkPixbuf *dest;
 991         gint srs, drs;
 992         guchar *s_pix, *d_pix;
 993         guchar *sp, *dp;
 994         guchar *spi, *dpi;
 995         gint i, j;
 996         gint tw = rt->tile_width;
 997         gint th = rt->tile_height;
 998
 999         srs = gdk_pixbuf_get_rowstride(src);
1000         s_pix = gdk_pixbuf_get_pixels(src);
1001         spi = s_pix + (x * COLOR_BYTES);
1002
1003         dest = rt_get_spare_tile(rt);
1004         drs = gdk_pixbuf_get_rowstride(dest);
1005         d_pix = gdk_pixbuf_get_pixels(dest);
1006         dpi = d_pix + (th - 1) * drs + (tw - 1) * COLOR_BYTES;
1007
1008         for (i = y; i < y + h; i++)
1009                 {
1010                 sp = s_pix + (i * srs) + (x * COLOR_BYTES);
1011                 dp = dpi - (i * drs) - (x * COLOR_BYTES);
1012                 for (j = 0; j < w; j++)
1013                         {
1014                         memcpy(dp, sp, COLOR_BYTES);
1015                         sp += COLOR_BYTES;
1016                         dp -= COLOR_BYTES;
1017                         }
1018                 }
1019
1020         rt->spare_tile = src;
1021         *tile = dest;
1022 }
1023
1024 static void rt_tile_flip_only(RendererTiles *rt, GdkPixbuf **tile, gint x, gint y, gint w, gint h)
1025 {
1026         GdkPixbuf *src = *tile;
1027         GdkPixbuf *dest;
1028         gint srs, drs;
1029         guchar *s_pix, *d_pix;
1030         guchar *sp, *dp;
1031         guchar *spi, *dpi;
1032         gint i;
1033         gint th = rt->tile_height;
1034
1035         srs = gdk_pixbuf_get_rowstride(src);
1036         s_pix = gdk_pixbuf_get_pixels(src);
1037         spi = s_pix + (x * COLOR_BYTES);
1038
1039         dest = rt_get_spare_tile(rt);
1040         drs = gdk_pixbuf_get_rowstride(dest);
1041         d_pix = gdk_pixbuf_get_pixels(dest);
1042         dpi = d_pix + (th - 1) * drs + (x * COLOR_BYTES);
1043
1044         for (i = y; i < y + h; i++)
1045                 {
1046                 sp = spi + (i * srs);
1047                 dp = dpi - (i * drs);
1048                 memcpy(dp, sp, w * COLOR_BYTES);
1049                 }
1050
1051         rt->spare_tile = src;
1052         *tile = dest;
1053 }
1054
1055 static void rt_tile_apply_orientation(RendererTiles *rt, gint orientation, GdkPixbuf **pixbuf, gint x, gint y, gint w, gint h)
1056 {
1057         switch (orientation)
1058                 {
1059                 case EXIF_ORIENTATION_TOP_LEFT:
1060                         /* normal -- nothing to do */
1061                         break;
1062                 case EXIF_ORIENTATION_TOP_RIGHT:
1063                         /* mirrored */
1064                         {
1065                                 rt_tile_mirror_only(rt, pixbuf, x, y, w, h);
1066                         }
1067                         break;
1068                 case EXIF_ORIENTATION_BOTTOM_RIGHT:
1069                         /* upside down */
1070                         {
1071                                 rt_tile_mirror_and_flip(rt, pixbuf, x, y, w, h);
1072                         }
1073                         break;
1074                 case EXIF_ORIENTATION_BOTTOM_LEFT:
1075                         /* flipped */
1076                         {
1077                                 rt_tile_flip_only(rt, pixbuf, x, y, w, h);
1078                         }
1079                         break;
1080                 case EXIF_ORIENTATION_LEFT_TOP:
1081                         {
1082                                 rt_tile_flip_only(rt, pixbuf, x, y, w, h);
1083                                 rt_tile_rotate_90_clockwise(rt, pixbuf, x, rt->tile_height - y - h, w, h);
1084                         }
1085                         break;
1086                 case EXIF_ORIENTATION_RIGHT_TOP:
1087                         /* rotated -90 (270) */
1088                         {
1089                                 rt_tile_rotate_90_clockwise(rt, pixbuf, x, y, w, h);
1090                         }
1091                         break;
1092                 case EXIF_ORIENTATION_RIGHT_BOTTOM:
1093                         {
1094                                 rt_tile_flip_only(rt, pixbuf, x, y, w, h);
1095                                 rt_tile_rotate_90_counter_clockwise(rt, pixbuf, x, rt->tile_height - y - h, w, h);
1096                         }
1097                         break;
1098                 case EXIF_ORIENTATION_LEFT_BOTTOM:
1099                         /* rotated 90 */
1100                         {
1101                                 rt_tile_rotate_90_counter_clockwise(rt, pixbuf, x, y, w, h);
1102                         }
1103                         break;
1104                 default:
1105                         /* The other values are out of range */
1106                         break;
1107                 }
1108 }
1109
1110 static gboolean rt_source_tile_render(RendererTiles *rt, ImageTile *it,
1111                                       gint x, gint y, gint w, gint h,
1112                                       gboolean new_data, gboolean fast)
1113 {
1114         PixbufRenderer *pr = rt->pr;
1115         GtkWidget *box;
1116         GList *list;
1117         GList *work;
1118         gboolean draw = FALSE;
1119
1120         box = GTK_WIDGET(pr);
1121
1122         if (pr->zoom == 1.0 || pr->scale == 1.0)
1123                 {
1124                 list = pr_source_tile_compute_region(pr, it->x + x, it->y + y, w, h, TRUE);
1125                 work = list;
1126                 while (work)
1127                         {
1128                         SourceTile *st;
1129                         gint rx, ry, rw, rh;
1130
1131                         st = work->data;
1132                         work = work->next;
1133
1134                         if (pr_clip_region(st->x, st->y, pr->source_tile_width, pr->source_tile_height,
1135                                            it->x + x, it->y + y, w, h,
1136                                            &rx, &ry, &rw, &rh))
1137                                 {
1138                                 if (st->blank)
1139                                         {
1140                                         gdk_draw_rectangle(it->pixmap, box->style->black_gc, TRUE,
1141                                                            rx - st->x, ry - st->y, rw, rh);
1142                                         }
1143                                 else /* (pr->zoom == 1.0 || pr->scale == 1.0) */
1144                                         {
1145                                         gdk_draw_pixbuf(it->pixmap,
1146 #if GTK_CHECK_VERSION(2,20,0)
1147                                                         box->style->fg_gc[gtk_widget_get_state(box)],
1148 #else
1149                                                         box->style->fg_gc[GTK_WIDGET_STATE(box)],
1150 #endif
1151                                                         st->pixbuf,
1152                                                         rx - st->x, ry - st->y,
1153                                                         rx - it->x, ry - it->y,
1154                                                         rw, rh,
1155                                                         pr->dither_quality, rx, ry);
1156                                         }
1157                                 }
1158                         }
1159                 }
1160         else
1161                 {
1162                 gdouble scale_x, scale_y;
1163                 gint sx, sy, sw, sh;
1164
1165                 if (pr->image_width == 0 || pr->image_height == 0) return FALSE;
1166                 scale_x = (gdouble)pr->width / pr->image_width;
1167                 scale_y = (gdouble)pr->height / pr->image_height;
1168
1169                 sx = (gdouble)(it->x + x) / scale_x;
1170                 sy = (gdouble)(it->y + y) / scale_y;
1171                 sw = (gdouble)w / scale_x;
1172                 sh = (gdouble)h / scale_y;
1173
1174                 if (pr->width < PR_MIN_SCALE_SIZE || pr->height < PR_MIN_SCALE_SIZE) fast = TRUE;
1175
1176 #if 0
1177                 /* draws red over draw region, to check for leaks (regions not filled) */
1178                 pixbuf_set_rect_fill(it->pixbuf, x, y, w, h, 255, 0, 0, 255);
1179 #endif
1180
1181                 list = pr_source_tile_compute_region(pr, sx, sy, sw, sh, TRUE);
1182                 work = list;
1183                 while (work)
1184                         {
1185                         SourceTile *st;
1186                         gint rx, ry, rw, rh;
1187                         gint stx, sty, stw, sth;
1188
1189                         st = work->data;
1190                         work = work->next;
1191
1192                         stx = floor((gdouble)st->x * scale_x);
1193                         sty = floor((gdouble)st->y * scale_y);
1194                         stw = ceil((gdouble)(st->x + pr->source_tile_width) * scale_x) - stx;
1195                         sth = ceil((gdouble)(st->y + pr->source_tile_height) * scale_y) - sty;
1196
1197                         if (pr_clip_region(stx, sty, stw, sth,
1198                                            it->x + x, it->y + y, w, h,
1199                                            &rx, &ry, &rw, &rh))
1200                                 {
1201                                 if (st->blank)
1202                                         {
1203                                         gdk_draw_rectangle(it->pixmap, box->style->black_gc, TRUE,
1204                                                            rx - st->x, ry - st->y, rw, rh);
1205                                         }
1206                                 else
1207                                         {
1208                                         gdouble offset_x;
1209                                         gdouble offset_y;
1210
1211                                         /* may need to use unfloored stx,sty values here */
1212                                         offset_x = (gdouble)(stx - it->x);
1213                                         offset_y = (gdouble)(sty - it->y);
1214
1215                                         gdk_pixbuf_scale(st->pixbuf, it->pixbuf, rx - it->x, ry - it->y, rw, rh,
1216                                                  (gdouble) 0.0 + offset_x,
1217                                                  (gdouble) 0.0 + offset_y,
1218                                                  scale_x, scale_y,
1219                                                  (fast) ? GDK_INTERP_NEAREST : pr->zoom_quality);
1220                                         draw = TRUE;
1221                                         }
1222                                 }
1223                         }
1224                 }
1225
1226         g_list_free(list);
1227
1228         return draw;
1229 }
1230
1231 static void rt_tile_get_region(gboolean has_alpha,
1232                                const GdkPixbuf *src, GdkPixbuf *dest,
1233                                int pb_x, int pb_y, int pb_w, int pb_h,
1234                                double offset_x, double offset_y, double scale_x, double scale_y,
1235                                GdkInterpType interp_type,
1236                                int check_x, int check_y)
1237 {
1238         if (!has_alpha)
1239                 {
1240                 if (scale_x == 1.0 && scale_y == 1.0)
1241                         {
1242                         gdk_pixbuf_copy_area(src,
1243                                              -offset_x + pb_x, -offset_y + pb_y,
1244                                              pb_w, pb_h,
1245                                              dest,
1246                                              pb_x, pb_y);
1247                         }
1248                 else
1249                         {
1250                         gdk_pixbuf_scale(src, dest,
1251                                          pb_x, pb_y, pb_w, pb_h,
1252                                          offset_x,
1253                                          offset_y,
1254                                          scale_x, scale_y,
1255                                          interp_type);
1256                         }
1257                 }
1258         else
1259                 {
1260                 gdk_pixbuf_composite_color(src, dest,
1261                                          pb_x, pb_y, pb_w, pb_h,
1262                                          offset_x,
1263                                          offset_y,
1264                                          scale_x, scale_y,
1265                                          interp_type,
1266                                          255, check_x, check_y,
1267                                          PR_ALPHA_CHECK_SIZE, PR_ALPHA_CHECK1, PR_ALPHA_CHECK2);
1268                 }
1269 }
1270
1271
1272
1273
1274 static void rt_tile_render(RendererTiles *rt, ImageTile *it,
1275                            gint x, gint y, gint w, gint h,
1276                            gboolean new_data, gboolean fast)
1277 {
1278         PixbufRenderer *pr = rt->pr;
1279         GtkWidget *box;
1280         gboolean has_alpha;
1281         gboolean draw = FALSE;
1282         gint stereo_right_pixbuf_off;
1283         gint orientation = pr->orientation;
1284         static const gint mirror[]       = {1,   2, 1, 4, 3, 6, 5, 8, 7};
1285         static const gint flip[]         = {1,   4, 3, 2, 1, 8, 7, 6, 5};
1286
1287         if (it->render_todo == TILE_RENDER_NONE && it->pixmap && !new_data) return;
1288
1289         if (it->render_done != TILE_RENDER_ALL)
1290                 {
1291                 x = 0;
1292                 y = 0;
1293                 w = it->w;
1294                 h = it->h;
1295                 if (!fast) it->render_done = TILE_RENDER_ALL;
1296                 }
1297         else if (it->render_todo != TILE_RENDER_AREA)
1298                 {
1299                 if (!fast) it->render_todo = TILE_RENDER_NONE;
1300                 return;
1301                 }
1302
1303         if (!fast) it->render_todo = TILE_RENDER_NONE;
1304
1305         if (new_data) it->blank = FALSE;
1306
1307         rt_tile_prepare(rt, it);
1308         has_alpha = (pr->pixbuf && gdk_pixbuf_get_has_alpha(pr->pixbuf));
1309
1310         stereo_right_pixbuf_off = (rt->stereo_mode & PR_STEREO_RIGHT) ? pr->stereo_pixbuf_off : 0;
1311         if (rt->stereo_mode & PR_STEREO_MIRROR) orientation = mirror[orientation];
1312         if (rt->stereo_mode & PR_STEREO_FLIP) orientation = flip[orientation];
1313         box = GTK_WIDGET(pr);
1314
1315         /* FIXME checker colors for alpha should be configurable,
1316          * also should be drawn for blank = TRUE
1317          */
1318
1319         if (it->blank)
1320                 {
1321                 /* no data, do fast rect fill */
1322                 gdk_draw_rectangle(it->pixmap, box->style->black_gc, TRUE,
1323                                    0, 0, it->w, it->h);
1324                 }
1325         else if (pr->source_tiles_enabled)
1326                 {
1327                 draw = rt_source_tile_render(rt, it, x, y, w, h, new_data, fast);
1328                 }
1329         else if ((pr->zoom == 1.0 || pr->scale == 1.0) &&
1330                  pr->aspect_ratio == 1.0 &&
1331                  !has_alpha &&
1332                  orientation == EXIF_ORIENTATION_TOP_LEFT &&
1333                  !(pr->func_post_process && !(pr->post_process_slow && fast)) &&
1334                  !(rt->stereo_mode & PR_STEREO_ANAGLYPH))
1335                 {
1336                 /* special case: faster, simple, scale 1.0, base orientation, no postprocessing */
1337                 gdk_draw_pixbuf(it->pixmap,
1338 #if GTK_CHECK_VERSION(2,20,0)
1339                                 box->style->fg_gc[gtk_widget_get_state(box)],
1340 #else
1341                                 box->style->fg_gc[GTK_WIDGET_STATE(box)],
1342 #endif
1343                                 pr->pixbuf,
1344                                 it->x + x + stereo_right_pixbuf_off, it->y + y,
1345                                 x, y,
1346                                 w, h,
1347                                 pr->dither_quality, it->x + x, it->y + y);
1348                 }
1349         else
1350                 {
1351                 gdouble scale_x, scale_y;
1352                 gdouble src_x, src_y;
1353                 gint pb_x, pb_y;
1354                 gint pb_w, pb_h;
1355
1356                 if (pr->image_width == 0 || pr->image_height == 0) return;
1357
1358                 scale_x = (gdouble)pr->width / pr->image_width;
1359                 scale_y = (gdouble)pr->height / pr->image_height;
1360
1361                 pr_tile_coords_map_orientation(orientation, it->x, it->y,
1362                                             pr->width, pr->height,
1363                                             rt->tile_width, rt->tile_height,
1364                                             &src_x, &src_y);
1365                 pr_tile_region_map_orientation(orientation, x, y,
1366                                             rt->tile_width, rt->tile_height,
1367                                             w, h,
1368                                             &pb_x, &pb_y,
1369                                             &pb_w, &pb_h);
1370 //printf("%d  %d\n", GET_X_SCROLL(rt), src_x);
1371                 switch (orientation)
1372                         {
1373                         gdouble tmp;
1374                         case EXIF_ORIENTATION_LEFT_TOP:
1375                         case EXIF_ORIENTATION_RIGHT_TOP:
1376                         case EXIF_ORIENTATION_RIGHT_BOTTOM:
1377                         case EXIF_ORIENTATION_LEFT_BOTTOM:
1378                                 tmp = scale_x;
1379                                 scale_x = scale_y;
1380                                 scale_y = tmp;
1381                                 break;
1382                         default:
1383                                 /* nothing to do */
1384                                 break;
1385                         }
1386
1387                 /* HACK: The pixbuf scalers get kinda buggy(crash) with extremely
1388                  * small sizes for anything but GDK_INTERP_NEAREST
1389                  */
1390                 if (pr->width < PR_MIN_SCALE_SIZE || pr->height < PR_MIN_SCALE_SIZE) fast = TRUE;
1391
1392                 rt_tile_get_region(has_alpha,
1393                                    pr->pixbuf, it->pixbuf, pb_x, pb_y, pb_w, pb_h,
1394                                    (gdouble) 0.0 - src_x - stereo_right_pixbuf_off * scale_x,
1395                                    (gdouble) 0.0 - src_y,
1396                                    scale_x, scale_y,
1397                                    (fast) ? GDK_INTERP_NEAREST : pr->zoom_quality,
1398                                    it->x + pb_x, it->y + pb_y);
1399                 if (rt->stereo_mode & PR_STEREO_ANAGLYPH && pr->stereo_pixbuf_off > 0)
1400                         {
1401                         GdkPixbuf *right_pb = rt_get_spare_tile(rt);
1402                         rt_tile_get_region(has_alpha,
1403                                            pr->pixbuf, right_pb, pb_x, pb_y, pb_w, pb_h,
1404                                            (gdouble) 0.0 - src_x - pr->stereo_pixbuf_off * scale_x,
1405                                            (gdouble) 0.0 - src_y,
1406                                            scale_x, scale_y,
1407                                            (fast) ? GDK_INTERP_NEAREST : pr->zoom_quality,
1408                                            it->x + pb_x, it->y + pb_y);
1409                         pr_create_anaglyph(it->pixbuf, right_pb, pb_x, pb_y, pb_w, pb_h);
1410                         /* do not care about freeing spare_tile, it will be reused */
1411                         }
1412                 rt_tile_apply_orientation(rt, orientation, &it->pixbuf, pb_x, pb_y, pb_w, pb_h);
1413                 draw = TRUE;
1414                 }
1415
1416         if (draw && it->pixbuf && !it->blank)
1417                 {
1418
1419                 if (pr->func_post_process && !(pr->post_process_slow && fast))
1420                         pr->func_post_process(pr, &it->pixbuf, x, y, w, h, pr->post_process_user_data);
1421
1422                 gdk_draw_pixbuf(it->pixmap,
1423 #if GTK_CHECK_VERSION(2,20,0)
1424                                 box->style->fg_gc[gtk_widget_get_state(box)],
1425 #else
1426                                 box->style->fg_gc[GTK_WIDGET_STATE(box)],
1427 #endif
1428                                 it->pixbuf,
1429                                 x, y,
1430                                 x, y,
1431                                 w, h,
1432                                 pr->dither_quality, it->x + x, it->y + y);
1433                 }
1434
1435 #if 0
1436         /* enable this line for debugging the edges of tiles */
1437         gdk_draw_rectangle(it->pixmap, box->style->white_gc,
1438                            FALSE, 0, 0, it->w, it->h);
1439         gdk_draw_rectangle(it->pixmap, box->style->white_gc,
1440                            FALSE, x, y, w, h);
1441 #endif
1442 }
1443
1444
1445 static void rt_tile_expose(RendererTiles *rt, ImageTile *it,
1446                            gint x, gint y, gint w, gint h,
1447                            gboolean new_data, gboolean fast)
1448 {
1449         PixbufRenderer *pr = rt->pr;
1450         GtkWidget *box;
1451
1452         /* clamp to visible */
1453         if (it->x + x < rt->x_scroll)
1454                 {
1455                 w -= rt->x_scroll - it->x - x;
1456                 x = rt->x_scroll - it->x;
1457                 }
1458         if (it->x + x + w > rt->x_scroll + pr->vis_width)
1459                 {
1460                 w = rt->x_scroll + pr->vis_width - it->x - x;
1461                 }
1462         if (w < 1) return;
1463         if (it->y + y < rt->y_scroll)
1464                 {
1465                 h -= rt->y_scroll - it->y - y;
1466                 y = rt->y_scroll - it->y;
1467                 }
1468         if (it->y + y + h > rt->y_scroll + pr->vis_height)
1469                 {
1470                 h = rt->y_scroll + pr->vis_height - it->y - y;
1471                 }
1472         if (h < 1) return;
1473
1474         rt_tile_render(rt, it, x, y, w, h, new_data, fast);
1475
1476         box = GTK_WIDGET(pr);
1477
1478 #if GTK_CHECK_VERSION(2,20,0)
1479         gdk_draw_drawable(box->window, box->style->fg_gc[gtk_widget_get_state(box)],
1480 #else
1481         gdk_draw_drawable(box->window, box->style->fg_gc[GTK_WIDGET_STATE(box)],
1482 #endif
1483                           it->pixmap, x, y,
1484                           pr->x_offset + (it->x - rt->x_scroll) + x + rt->stereo_off_x, pr->y_offset + (it->y - rt->y_scroll) + y + rt->stereo_off_y, w, h);
1485
1486         if (rt->overlay_list)
1487                 {
1488                 rt_overlay_draw(rt, pr->x_offset + (it->x - rt->x_scroll) + x,
1489                                 pr->y_offset + (it->y - rt->y_scroll) + y,
1490                                 w, h,
1491                                 it);
1492                 }
1493 }
1494
1495
1496 static gboolean rt_tile_is_visible(RendererTiles *rt, ImageTile *it)
1497 {
1498         PixbufRenderer *pr = rt->pr;
1499         return (it->x + it->w >= rt->x_scroll && it->x < rt->x_scroll + pr->vis_width &&
1500                 it->y + it->h >= rt->y_scroll && it->y < rt->y_scroll + pr->vis_height);
1501 }
1502
1503 /*
1504  *-------------------------------------------------------------------
1505  * draw queue
1506  *-------------------------------------------------------------------
1507  */
1508
1509 static gint rt_get_queued_area(GList *work)
1510 {
1511         gint area = 0;
1512
1513         while (work)
1514                 {
1515                 QueueData *qd = work->data;
1516                 area += qd->w * qd->h;
1517                 work = work->next;
1518                 }
1519         return area;
1520 }
1521
1522
1523 static gboolean rt_queue_schedule_next_draw(RendererTiles *rt, gboolean force_set)
1524 {
1525         PixbufRenderer *pr = rt->pr;
1526         gfloat percent;
1527         gint visible_area = pr->vis_width * pr->vis_height;
1528
1529         if (!pr->loading)
1530                 {
1531                 /* 2pass prio */
1532                 DEBUG_2("redraw priority: 2pass");
1533                 rt->draw_idle_id = g_idle_add_full(G_PRIORITY_DEFAULT_IDLE, rt_queue_draw_idle_cb, rt, NULL);
1534                 return FALSE;
1535                 }
1536
1537         if (visible_area == 0)
1538                 {
1539                 /* not known yet */
1540                 percent = 100.0;
1541                 }
1542         else
1543                 {
1544                 percent = 100.0 * rt_get_queued_area(rt->draw_queue) / visible_area;
1545                 }
1546
1547         if (percent > 10.0)
1548                 {
1549                 /* we have enough data for starting intensive redrawing */
1550                 DEBUG_2("redraw priority: high %.2f %%", percent);
1551                 rt->draw_idle_id = g_idle_add_full(GDK_PRIORITY_REDRAW, rt_queue_draw_idle_cb, rt, NULL);
1552                 return FALSE;
1553                 }
1554
1555         if (percent < 1.0 || force_set)
1556                 {
1557                 /* queue is (almost) empty, wait  50 ms*/
1558                 DEBUG_2("redraw priority: wait %.2f %%", percent);
1559                 rt->draw_idle_id = g_timeout_add_full(G_PRIORITY_DEFAULT_IDLE, 50, rt_queue_draw_idle_cb, rt, NULL);
1560                 return FALSE;
1561                 }
1562
1563         /* keep the same priority as before */
1564         DEBUG_2("redraw priority: no change %.2f %%", percent);
1565         return TRUE;
1566 }
1567
1568
1569 static gboolean rt_queue_draw_idle_cb(gpointer data)
1570 {
1571         RendererTiles *rt = data;
1572         PixbufRenderer *pr = rt->pr;
1573         QueueData *qd;
1574         gboolean fast;
1575
1576
1577         if ((!pr->pixbuf && !pr->source_tiles_enabled) ||
1578             (!rt->draw_queue && !rt->draw_queue_2pass) ||
1579             !rt->draw_idle_id)
1580                 {
1581                 pr_render_complete_signal(pr);
1582
1583                 rt->draw_idle_id = 0;
1584                 return FALSE;
1585                 }
1586
1587         if (rt->draw_queue)
1588                 {
1589                 qd = rt->draw_queue->data;
1590                 fast = (pr->zoom_2pass && ((pr->zoom_quality != GDK_INTERP_NEAREST && pr->scale != 1.0) || pr->post_process_slow));
1591                 }
1592         else
1593                 {
1594                 if (pr->loading)
1595                         {
1596                         /* still loading, wait till done (also drops the higher priority) */
1597
1598                         return rt_queue_schedule_next_draw(rt, FALSE);
1599                         }
1600
1601                 qd = rt->draw_queue_2pass->data;
1602                 fast = FALSE;
1603                 }
1604
1605 #if GTK_CHECK_VERSION(2,20,0)
1606         if (gtk_widget_get_realized(pr))
1607 #else
1608         if (GTK_WIDGET_REALIZED(pr))
1609 #endif
1610                 {
1611                 if (rt_tile_is_visible(rt, qd->it))
1612                         {
1613                         rt_tile_expose(rt, qd->it, qd->x, qd->y, qd->w, qd->h, qd->new_data, fast);
1614                         }
1615                 else if (qd->new_data)
1616                         {
1617                         /* if new pixel data, and we already have a pixmap, update the tile */
1618                         qd->it->blank = FALSE;
1619                         if (qd->it->pixmap && qd->it->render_done == TILE_RENDER_ALL)
1620                                 {
1621                                 rt_tile_render(rt, qd->it, qd->x, qd->y, qd->w, qd->h, qd->new_data, fast);
1622                                 }
1623                         }
1624                 }
1625
1626         if (rt->draw_queue)
1627                 {
1628                 qd->it->qd = NULL;
1629                 rt->draw_queue = g_list_remove(rt->draw_queue, qd);
1630                 if (fast)
1631                         {
1632                         if (qd->it->qd2)
1633                                 {
1634                                 rt_queue_merge(qd->it->qd2, qd);
1635                                 g_free(qd);
1636                                 }
1637                         else
1638                                 {
1639                                 qd->it->qd2 = qd;
1640                                 rt->draw_queue_2pass = g_list_append(rt->draw_queue_2pass, qd);
1641                                 }
1642                         }
1643                 else
1644                         {
1645                         g_free(qd);
1646                         }
1647                 }
1648         else
1649                 {
1650                 qd->it->qd2 = NULL;
1651                 rt->draw_queue_2pass = g_list_remove(rt->draw_queue_2pass, qd);
1652                 g_free(qd);
1653                 }
1654
1655         if (!rt->draw_queue && !rt->draw_queue_2pass)
1656                 {
1657                 pr_render_complete_signal(pr);
1658
1659                 rt->draw_idle_id = 0;
1660                 return FALSE;
1661                 }
1662
1663                 return rt_queue_schedule_next_draw(rt, FALSE);
1664 }
1665
1666 static void rt_queue_list_free(GList *list)
1667 {
1668         GList *work;
1669
1670         work = list;
1671         while (work)
1672                 {
1673                 QueueData *qd;
1674
1675                 qd = work->data;
1676                 work = work->next;
1677
1678                 qd->it->qd = NULL;
1679                 qd->it->qd2 = NULL;
1680                 g_free(qd);
1681                 }
1682
1683         g_list_free(list);
1684 }
1685
1686 static void rt_queue_clear(RendererTiles *rt)
1687 {
1688         rt_queue_list_free(rt->draw_queue);
1689         rt->draw_queue = NULL;
1690
1691         rt_queue_list_free(rt->draw_queue_2pass);
1692         rt->draw_queue_2pass = NULL;
1693
1694         if (rt->draw_idle_id)
1695                 {
1696                 g_source_remove(rt->draw_idle_id);
1697                 rt->draw_idle_id = 0;
1698                 }
1699         rt_sync_scroll(rt);
1700 }
1701
1702 static void rt_queue_merge(QueueData *parent, QueueData *qd)
1703 {
1704         if (parent->x + parent->w < qd->x + qd->w)
1705                 {
1706                 parent->w += (qd->x + qd->w) - (parent->x + parent->w);
1707                 }
1708         if (parent->x > qd->x)
1709                 {
1710                 parent->w += parent->x - qd->x;
1711                 parent->x = qd->x;
1712                 }
1713
1714         if (parent->y + parent->h < qd->y + qd->h)
1715                 {
1716                 parent->h += (qd->y + qd->h) - (parent->y + parent->h);
1717                 }
1718         if (parent->y > qd->y)
1719                 {
1720                 parent->h += parent->y - qd->y;
1721                 parent->y = qd->y;
1722                 }
1723
1724         parent->new_data |= qd->new_data;
1725 }
1726
1727 static gboolean rt_clamp_to_visible(RendererTiles *rt, gint *x, gint *y, gint *w, gint *h)
1728 {
1729         PixbufRenderer *pr = rt->pr;
1730         gint nx, ny;
1731         gint nw, nh;
1732         gint vx, vy;
1733         gint vw, vh;
1734
1735         vw = pr->vis_width;
1736         vh = pr->vis_height;
1737
1738         vx = rt->x_scroll;
1739         vy = rt->y_scroll;
1740
1741         if (*x + *w < vx || *x > vx + vw || *y + *h < vy || *y > vy + vh) return FALSE;
1742
1743         /* now clamp it */
1744         nx = CLAMP(*x, vx, vx + vw);
1745         nw = CLAMP(*w - (nx - *x), 1, vw);
1746
1747         ny = CLAMP(*y, vy, vy + vh);
1748         nh = CLAMP(*h - (ny - *y), 1, vh);
1749
1750         *x = nx;
1751         *y = ny;
1752         *w = nw;
1753         *h = nh;
1754
1755         return TRUE;
1756 }
1757
1758 static gboolean rt_queue_to_tiles(RendererTiles *rt, gint x, gint y, gint w, gint h,
1759                                   gboolean clamp, ImageRenderType render,
1760                                   gboolean new_data, gboolean only_existing)
1761 {
1762         PixbufRenderer *pr = rt->pr;
1763         gint i, j;
1764         gint x1, x2;
1765         gint y1, y2;
1766
1767         if (clamp && !rt_clamp_to_visible(rt, &x, &y, &w, &h)) return FALSE;
1768
1769         x1 = ROUND_DOWN(x, rt->tile_width);
1770         x2 = ROUND_UP(x + w, rt->tile_width);
1771
1772         y1 = ROUND_DOWN(y, rt->tile_height);
1773         y2 = ROUND_UP(y + h, rt->tile_height);
1774
1775         for (j = y1; j <= y2; j += rt->tile_height)
1776                 {
1777                 for (i = x1; i <= x2; i += rt->tile_width)
1778                         {
1779                         ImageTile *it;
1780
1781                         it = rt_tile_get(rt, i, j,
1782                                          (only_existing &&
1783                                           (i + rt->tile_width < rt->x_scroll ||
1784                                            i > rt->x_scroll + pr->vis_width ||
1785                                            j + rt->tile_height < rt->y_scroll ||
1786                                            j > rt->y_scroll + pr->vis_height)));
1787                         if (it)
1788                                 {
1789                                 QueueData *qd;
1790
1791                                 if ((render == TILE_RENDER_ALL && it->render_done != TILE_RENDER_ALL) ||
1792                                     (render == TILE_RENDER_AREA && it->render_todo != TILE_RENDER_ALL))
1793                                         {
1794                                         it->render_todo = render;
1795                                         }
1796
1797                                 qd = g_new(QueueData, 1);
1798                                 qd->it = it;
1799                                 qd->new_data = new_data;
1800
1801                                 if (i < x)
1802                                         {
1803                                         qd->x = x - i;
1804                                         }
1805                                 else
1806                                         {
1807                                         qd->x = 0;
1808                                         }
1809                                 qd->w = x + w - i - qd->x;
1810                                 if (qd->x + qd->w > rt->tile_width) qd->w = rt->tile_width - qd->x;
1811
1812                                 if (j < y)
1813                                         {
1814                                         qd->y = y - j;
1815                                         }
1816                                 else
1817                                         {
1818                                         qd->y = 0;
1819                                         }
1820                                 qd->h = y + h - j - qd->y;
1821                                 if (qd->y + qd->h > rt->tile_height) qd->h = rt->tile_height - qd->y;
1822
1823                                 if (qd->w < 1 || qd->h < 1)
1824                                         {
1825                                         g_free(qd);
1826                                         }
1827                                 else if (it->qd)
1828                                         {
1829                                         rt_queue_merge(it->qd, qd);
1830                                         g_free(qd);
1831                                         }
1832                                 else
1833                                         {
1834                                         it->qd = qd;
1835                                         rt->draw_queue = g_list_append(rt->draw_queue, qd);
1836                                         }
1837                                 }
1838                         }
1839                 }
1840
1841         return TRUE;
1842 }
1843
1844 static void rt_queue(RendererTiles *rt, gint x, gint y, gint w, gint h,
1845                      gboolean clamp, ImageRenderType render,
1846                      gboolean new_data, gboolean only_existing)
1847 {
1848         PixbufRenderer *pr = rt->pr;
1849         gint nx, ny;
1850
1851         rt_sync_scroll(rt);
1852
1853         nx = CLAMP(x, 0, pr->width - 1);
1854         ny = CLAMP(y, 0, pr->height - 1);
1855         w -= (nx - x);
1856         h -= (ny - y);
1857         w = CLAMP(w, 0, pr->width - nx);
1858         h = CLAMP(h, 0, pr->height - ny);
1859         if (w < 1 || h < 1) return;
1860
1861         if (rt_queue_to_tiles(rt, nx, ny, w, h, clamp, render, new_data, only_existing) &&
1862             ((!rt->draw_queue && !rt->draw_queue_2pass) || !rt->draw_idle_id))
1863                 {
1864                 if (rt->draw_idle_id)
1865                         {
1866                         g_source_remove(rt->draw_idle_id);
1867                         rt->draw_idle_id = 0;
1868                         }
1869                 rt_queue_schedule_next_draw(rt, TRUE);
1870                 }
1871 }
1872
1873 static void rt_redraw(RendererTiles *rt, gboolean new_data)
1874 {
1875         PixbufRenderer *pr = rt->pr;
1876         rt_queue_clear(rt);
1877         rt_queue(rt, 0, 0, pr->width, pr->height, TRUE, TILE_RENDER_ALL, new_data, FALSE);
1878 }
1879
1880
1881 static void rt_scroll(RendererTiles *rt, gint x_off, gint y_off)
1882 {
1883         PixbufRenderer *pr = rt->pr;
1884
1885         rt_sync_scroll(rt);
1886         if (rt->stereo_mode & PR_STEREO_MIRROR) x_off = -x_off;
1887         if (rt->stereo_mode & PR_STEREO_FLIP) y_off = -y_off;
1888
1889         gint w = pr->vis_width - abs(x_off);
1890         gint h = pr->vis_height - abs(y_off);
1891
1892         if (w < 1 || h < 1)
1893                 {
1894                 /* scrolled completely to new material */
1895                 rt_queue(rt, 0, 0, pr->width, pr->height, TRUE, TILE_RENDER_ALL, FALSE, FALSE);
1896                 return;
1897                 }
1898         else
1899                 {
1900                 gint x1, y1;
1901                 gint x2, y2;
1902                 GtkWidget *box;
1903                 GdkGC *gc;
1904                 GdkEvent *event;
1905
1906                 if (x_off < 0)
1907                         {
1908                         x1 = abs(x_off);
1909                         x2 = 0;
1910                         }
1911                 else
1912                         {
1913                         x1 = 0;
1914                         x2 = abs(x_off);
1915                         }
1916
1917                 if (y_off < 0)
1918                         {
1919                         y1 = abs(y_off);
1920                         y2 = 0;
1921                         }
1922                 else
1923                         {
1924                         y1 = 0;
1925                         y2 = abs(y_off);
1926                         }
1927
1928                 box = GTK_WIDGET(pr);
1929
1930                 gc = gdk_gc_new(box->window);
1931                 gdk_gc_set_exposures(gc, TRUE);
1932                 gdk_draw_drawable(box->window, gc,
1933                                   box->window,
1934                                   x2 + pr->x_offset + rt->stereo_off_x, y2 + pr->y_offset + rt->stereo_off_y,
1935                                   x1 + pr->x_offset + rt->stereo_off_x, y1 + pr->y_offset + rt->stereo_off_y, w, h);
1936                 g_object_unref(gc);
1937
1938                 rt_overlay_queue_all(rt, x2, y2, x1, y1);
1939
1940                 w = pr->vis_width - w;
1941                 h = pr->vis_height - h;
1942
1943                 if (w > 0)
1944                         {
1945                         rt_queue(rt,
1946                                     x_off > 0 ? rt->x_scroll + (pr->vis_width - w) : rt->x_scroll, rt->y_scroll,
1947                                     w, pr->vis_height, TRUE, TILE_RENDER_ALL, FALSE, FALSE);
1948                         }
1949                 if (h > 0)
1950                         {
1951                         /* FIXME, to optimize this, remove overlap */
1952                         rt_queue(rt,
1953                                     rt->x_scroll, y_off > 0 ? rt->y_scroll + (pr->vis_height - h) : rt->y_scroll,
1954                                     pr->vis_width, h, TRUE, TILE_RENDER_ALL, FALSE, FALSE);
1955                         }
1956
1957                 /* process exposures here, "expose_event" seems to miss a few with obstructed windows */
1958 #if ! GTK_CHECK_VERSION(2,18,0)
1959                 while ((event = gdk_event_get_graphics_expose(box->window)) != NULL)
1960                         {
1961                         pixbuf_renderer_paint(pr, &event->expose.area);
1962
1963                         if (event->expose.count == 0)
1964                                 {
1965                                 gdk_event_free(event);
1966                                 break;
1967                                 }
1968                         gdk_event_free(event);
1969                         }
1970 #endif
1971                 }
1972 }
1973
1974 static void renderer_queue(void *renderer, gint x, gint y, gint w, gint h,
1975                      gint clamp, ImageRenderType render, gboolean new_data, gboolean only_existing)
1976 {
1977         RendererTiles *rt = (RendererTiles *)renderer;
1978         PixbufRenderer *pr = rt->pr;
1979
1980         if (rt->stereo_mode & PR_STEREO_MIRROR) x = pr->width - w - x;
1981         if (rt->stereo_mode & PR_STEREO_FLIP) y = pr->height - h - y;
1982
1983         rt_queue((RendererTiles *)renderer, x, y, w, h, clamp, render, new_data, only_existing);
1984 }
1985
1986 static void renderer_queue_clear(void *renderer)
1987 {
1988         rt_queue_clear((RendererTiles *)renderer);
1989 }
1990
1991 static void renderer_border_draw(void *renderer, gint x, gint y, gint w, gint h)
1992 {
1993         rt_border_draw((RendererTiles *)renderer, x, y, w, h);
1994 }
1995
1996
1997 static void renderer_invalidate_all(void *renderer)
1998 {
1999         rt_tile_invalidate_all((RendererTiles *)renderer);
2000 }
2001
2002 static void renderer_invalidate_region(void *renderer, gint x, gint y, gint w, gint h)
2003 {
2004         rt_tile_invalidate_region((RendererTiles *)renderer, x, y, w, h);
2005 }
2006
2007 static void renderer_overlay_draw(void *renderer, gint x, gint y, gint w, gint h)
2008 {
2009         rt_overlay_draw((RendererTiles *)renderer, x, y, w, h, NULL);
2010 }
2011
2012 static void renderer_update_sizes(void *renderer)
2013 {
2014         RendererTiles *rt = (RendererTiles *)renderer;
2015
2016         rt->stereo_off_x = 0;
2017         rt->stereo_off_y = 0;
2018
2019         if (rt->stereo_mode & PR_STEREO_RIGHT)
2020                 {
2021                 if (rt->stereo_mode & PR_STEREO_HORIZ)
2022                         {
2023                         rt->stereo_off_x = rt->pr->viewport_width;
2024                         }
2025                 else if (rt->stereo_mode & PR_STEREO_VERT)
2026                         {
2027                         rt->stereo_off_y = rt->pr->viewport_height;
2028                         }
2029                 }
2030         rt_sync_scroll(rt);
2031         rt_overlay_update_sizes(rt);
2032
2033 }
2034
2035 static void renderer_free(void *renderer)
2036 {
2037         RendererTiles *rt = (RendererTiles *)renderer;
2038         rt_queue_clear(rt);
2039         rt_tile_free_all(rt);
2040         if (rt->spare_tile) g_object_unref(rt->spare_tile);
2041         if (rt->overlay_buffer) g_object_unref(rt->overlay_buffer);
2042         rt_overlay_list_clear(rt);
2043         /* disconnect "hierarchy-changed" */
2044         g_signal_handlers_disconnect_matched(G_OBJECT(rt->pr), G_SIGNAL_MATCH_DATA,
2045                                                      0, 0, 0, NULL, rt);
2046         g_free(rt);
2047 }
2048
2049 RendererFuncs *renderer_tiles_new(PixbufRenderer *pr, gint stereo_mode)
2050 {
2051         RendererTiles *rt = g_new0(RendererTiles, 1);
2052
2053         rt->pr = pr;
2054
2055         rt->f.queue = renderer_queue;
2056         rt->f.queue_clear = renderer_queue_clear;
2057         rt->f.border_draw = renderer_border_draw;
2058         rt->f.free = renderer_free;
2059         rt->f.invalidate_all = renderer_invalidate_all;
2060         rt->f.invalidate_region = renderer_invalidate_region;
2061         rt->f.scroll = rt_scroll;
2062         rt->f.update_sizes = renderer_update_sizes;
2063
2064
2065         rt->f.overlay_add = renderer_tiles_overlay_add;
2066         rt->f.overlay_set = renderer_tiles_overlay_set;
2067         rt->f.overlay_get = renderer_tiles_overlay_get;
2068         rt->f.overlay_draw = renderer_overlay_draw;
2069
2070         rt->tile_width = PR_TILE_SIZE;
2071         rt->tile_height = PR_TILE_SIZE;
2072
2073         rt->tiles = NULL;
2074         rt->tile_cache_size = 0;
2075
2076         rt->tile_cache_max = PR_CACHE_SIZE_DEFAULT;
2077
2078         rt->draw_idle_id = 0;
2079
2080         rt->stereo_mode = stereo_mode;
2081         rt->stereo_off_x = 0;
2082         rt->stereo_off_y = 0;
2083
2084         g_signal_connect(G_OBJECT(pr), "hierarchy-changed",
2085                          G_CALLBACK(rt_hierarchy_changed_cb), rt);
2086
2087         return (RendererFuncs *) rt;
2088 }
2089
2090
2091 /* vim: set shiftwidth=8 softtabstop=0 cindent cinoptions={1s: */