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