src/display/nr-arena-shape.cpp

   1 #define __NR_ARENA_SHAPE_C__
   2
   3 /*
   4  * RGBA display list system for inkscape
   5  *
   6  * Author:
   7  *   Lauris Kaplinski <lauris@kaplinski.com>
   8  *
   9  * Copyright (C) 2001-2002 Lauris Kaplinski
  10  * Copyright (C) 2001 Ximian, Inc.
  11  *
  12  * Released under GNU GPL, read the file 'COPYING' for more information
  13  */
  14
  15
  16
  17 #include <display/nr-arena.h>
  18 #include <display/nr-arena-shape.h>
  19 #include <libnr/n-art-bpath.h>
  20 #include <libnr/nr-path.h>
  21 #include <libnr/nr-pixops.h>
  22 #include <libnr/nr-matrix-ops.h>
  23 #include <libnr/nr-blit.h>
  24 #include <livarot/Path.h>
  25 #include <livarot/float-line.h>
  26 #include <livarot/int-line.h>
  27 #include <style.h>
  28
  29 //int  showRuns=0;
  30 void nr_pixblock_render_shape_mask_or (NRPixBlock &m,Shape* theS);
  31
  32 static void nr_arena_shape_class_init (NRArenaShapeClass *klass);
  33 static void nr_arena_shape_init (NRArenaShape *shape);
  34 static void nr_arena_shape_finalize (NRObject *object);
  35
  36 static NRArenaItem *nr_arena_shape_children (NRArenaItem *item);
  37 static void nr_arena_shape_add_child (NRArenaItem *item, NRArenaItem *child, NRArenaItem *ref);
  38 static void nr_arena_shape_remove_child (NRArenaItem *item, NRArenaItem *child);
  39 static void nr_arena_shape_set_child_position (NRArenaItem *item, NRArenaItem *child, NRArenaItem *ref);
  40
  41 static guint nr_arena_shape_update (NRArenaItem *item, NRRectL *area, NRGC *gc, guint state, guint reset);
  42 static unsigned int nr_arena_shape_render (NRArenaItem *item, NRRectL *area, NRPixBlock *pb, unsigned int flags);
  43 static guint nr_arena_shape_clip (NRArenaItem *item, NRRectL *area, NRPixBlock *pb);
  44 static NRArenaItem *nr_arena_shape_pick (NRArenaItem *item, NR::Point p, double delta, unsigned int sticky);
  45
  46 static NRArenaItemClass *shape_parent_class;
  47
  48 NRType
  49 nr_arena_shape_get_type (void)
  50 {
  51     static NRType type = 0;
  52     if (!type) {
  53         type = nr_object_register_type (NR_TYPE_ARENA_ITEM,
  54                                         "NRArenaShape",
  55                                         sizeof (NRArenaShapeClass),
  56                                         sizeof (NRArenaShape),
  57                                         (void (*) (NRObjectClass *)) nr_arena_shape_class_init,
  58                                         (void (*) (NRObject *)) nr_arena_shape_init);
  59     }
  60     return type;
  61 }
  62
  63 static void
  64 nr_arena_shape_class_init (NRArenaShapeClass *klass)
  65 {
  66     NRObjectClass *object_class;
  67     NRArenaItemClass *item_class;
  68
  69     object_class = (NRObjectClass *) klass;
  70     item_class = (NRArenaItemClass *) klass;
  71
  72     shape_parent_class = (NRArenaItemClass *)  ((NRObjectClass *) klass)->parent;
  73
  74     object_class->finalize = nr_arena_shape_finalize;
  75     object_class->cpp_ctor = NRObject::invoke_ctor<NRArenaShape>;
  76
  77     item_class->children = nr_arena_shape_children;
  78     item_class->add_child = nr_arena_shape_add_child;
  79     item_class->set_child_position = nr_arena_shape_set_child_position;
  80     item_class->remove_child = nr_arena_shape_remove_child;
  81     item_class->update = nr_arena_shape_update;
  82     item_class->render = nr_arena_shape_render;
  83     item_class->clip = nr_arena_shape_clip;
  84     item_class->pick = nr_arena_shape_pick;
  85 }
  86
  87 static void
  88 nr_arena_shape_init (NRArenaShape *shape)
  89 {
  90     shape->curve = NULL;
  91     shape->style = NULL;
  92     shape->paintbox.x0 = shape->paintbox.y0 = 0.0F;
  93     shape->paintbox.x1 = shape->paintbox.y1 = 256.0F;
  94
  95     nr_matrix_set_identity (&shape->ctm);
  96     shape->fill_painter = NULL;
  97     shape->stroke_painter = NULL;
  98     shape->cached_fill = NULL;
  99     shape->cached_stroke = NULL;
 100     shape->fill_shp = NULL;
 101     shape->stroke_shp = NULL;
 102
 103     shape->delayed_shp = false;
 104
 105     shape->approx_bbox.x0 = shape->approx_bbox.y0 = 0;
 106     shape->approx_bbox.x1 = shape->approx_bbox.y1 = 0;
 107     nr_matrix_set_identity(&shape->cached_fctm);
 108     nr_matrix_set_identity(&shape->cached_sctm);
 109
 110     shape->markers = NULL;
 111 }
 112
 113 static void
 114 nr_arena_shape_finalize (NRObject *object)
 115 {
 116     NRArenaShape *shape = (NRArenaShape *) (object);
 117
 118     if (shape->fill_shp) delete shape->fill_shp;
 119     if (shape->stroke_shp) delete shape->stroke_shp;
 120     if (shape->cached_fill) delete shape->cached_fill;
 121     if (shape->cached_stroke) delete shape->cached_stroke;
 122     if (shape->fill_painter) sp_painter_free (shape->fill_painter);
 123     if (shape->stroke_painter) sp_painter_free (shape->stroke_painter);
 124
 125     if (shape->style) sp_style_unref (shape->style);
 126     if (shape->curve) sp_curve_unref (shape->curve);
 127
 128     ((NRObjectClass *) shape_parent_class)->finalize (object);
 129 }
 130
 131 static NRArenaItem *
 132 nr_arena_shape_children (NRArenaItem *item)
 133 {
 134     NRArenaShape *shape = (NRArenaShape *) item;
 135
 136     return shape->markers;
 137 }
 138
 139 static void
 140 nr_arena_shape_add_child (NRArenaItem *item, NRArenaItem *child, NRArenaItem *ref)
 141 {
 142     NRArenaShape *shape = (NRArenaShape *) item;
 143
 144     if (!ref) {
 145         shape->markers = nr_arena_item_attach_ref (item, child, NULL, shape->markers);
 146     } else {
 147         ref->next = nr_arena_item_attach_ref (item, child, ref, ref->next);
 148     }
 149
 150     nr_arena_item_request_update (item, NR_ARENA_ITEM_STATE_ALL, FALSE);
 151 }
 152
 153 static void
 154 nr_arena_shape_remove_child (NRArenaItem *item, NRArenaItem *child)
 155 {
 156     NRArenaShape *shape = (NRArenaShape *) item;
 157
 158     if (child->prev) {
 159         nr_arena_item_detach_unref (item, child);
 160     } else {
 161         shape->markers = nr_arena_item_detach_unref (item, child);
 162     }
 163
 164     nr_arena_item_request_update (item, NR_ARENA_ITEM_STATE_ALL, FALSE);
 165 }
 166
 167 static void
 168 nr_arena_shape_set_child_position (NRArenaItem *item, NRArenaItem *child, NRArenaItem *ref)
 169 {
 170     NRArenaShape *shape = (NRArenaShape *) item;
 171
 172     if (child->prev) {
 173         nr_arena_item_detach_unref (item, child);
 174     } else {
 175         shape->markers = nr_arena_item_detach_unref (item, child);
 176     }
 177
 178     if (!ref) {
 179         shape->markers = nr_arena_item_attach_ref (item, child, NULL, shape->markers);
 180     } else {
 181         ref->next = nr_arena_item_attach_ref (item, child, ref, ref->next);
 182     }
 183
 184     nr_arena_item_request_render (child);
 185 }
 186
 187 void nr_arena_shape_update_stroke(NRArenaShape *shape,NRGC* gc);
 188 void nr_arena_shape_update_fill(NRArenaShape *shape, NRGC *gc, bool force_shape = false);
 189 void nr_arena_shape_add_bboxes(NRArenaShape* shape,NRRect &bbox);
 190
 191 static guint
 192 nr_arena_shape_update (NRArenaItem *item, NRRectL *area, NRGC *gc, guint state, guint reset)
 193 {
 194     NRRect bbox;
 195
 196     NRArenaShape *shape = NR_ARENA_SHAPE (item);
 197
 198     unsigned int beststate = NR_ARENA_ITEM_STATE_ALL;
 199
 200     unsigned int newstate;
 201     for (NRArenaItem *child = shape->markers; child != NULL; child = child->next) {
 202         newstate = nr_arena_item_invoke_update (child, area, gc, state, reset);
 203         beststate = beststate & newstate;
 204     }
 205
 206     if (!(state & NR_ARENA_ITEM_STATE_RENDER)) {
 207         /* We do not have to create rendering structures */
 208         shape->ctm = gc->transform;
 209         if (state & NR_ARENA_ITEM_STATE_BBOX) {
 210             if (shape->curve) {
 211                 NRBPath bp;
 212                 /* fixme: */
 213                 bbox.x0 = bbox.y0 = NR_HUGE;
 214                 bbox.x1 = bbox.y1 = -NR_HUGE;
 215                 bp.path = shape->curve->bpath;
 216                 nr_path_matrix_bbox_union(&bp, gc->transform, &bbox);
 217                 item->bbox.x0 = (gint32)(bbox.x0 - 1.0F);
 218                 item->bbox.y0 = (gint32)(bbox.y0 - 1.0F);
 219                 item->bbox.x1 = (gint32)(bbox.x1 + 1.9999F);
 220                 item->bbox.y1 = (gint32)(bbox.y1 + 1.9999F);
 221             }
 222             if (beststate & NR_ARENA_ITEM_STATE_BBOX) {
 223                 for (NRArenaItem *child = shape->markers; child != NULL; child = child->next) {
 224                     nr_rect_l_union (&item->bbox, &item->bbox, &child->bbox);
 225                 }
 226             }
 227         }
 228         return (state | item->state);
 229     }
 230
 231     shape->delayed_shp=true;
 232     shape->ctm = gc->transform;
 233     bbox.x0 = bbox.y0 = NR_HUGE;
 234     bbox.x1 = bbox.y1 = -NR_HUGE;
 235
 236     if (shape->curve) {
 237         NRBPath bp;
 238         /* fixme: */
 239         bbox.x0 = bbox.y0 = NR_HUGE;
 240         bbox.x1 = bbox.y1 = -NR_HUGE;
 241         bp.path = shape->curve->bpath;
 242         nr_path_matrix_bbox_union(&bp, gc->transform, &bbox);
 243         if (shape->_stroke.paint.type() != NRArenaShape::Paint::NONE) {
 244             float width, scale;
 245             scale = NR_MATRIX_DF_EXPANSION (&gc->transform);
 246             width = MAX (0.125, shape->_stroke.width * scale);
 247             if ( fabs(shape->_stroke.width * scale) > 0.01 ) { // sinon c'est 0=oon veut pas de bord
 248                 bbox.x0-=width;
 249                 bbox.x1+=width;
 250                 bbox.y0-=width;
 251                 bbox.y1+=width;
 252             }
 253             // those pesky miters, now
 254             float miterMax=width*shape->_stroke.mitre_limit;
 255             if ( miterMax > 0.01 ) {
 256                 // grunt mode. we should compute the various miters instead (one for each point on the curve)
 257                 bbox.x0-=miterMax;
 258                 bbox.x1+=miterMax;
 259                 bbox.y0-=miterMax;
 260                 bbox.y1+=miterMax;
 261             }
 262         }
 263     } else {
 264     }
 265     shape->approx_bbox.x0 = (gint32)(bbox.x0 - 1.0F);
 266     shape->approx_bbox.y0 = (gint32)(bbox.y0 - 1.0F);
 267     shape->approx_bbox.x1 = (gint32)(bbox.x1 + 1.9999F);
 268     shape->approx_bbox.y1 = (gint32)(bbox.y1 + 1.9999F);
 269     if ( area && nr_rect_l_test_intersect (area, &shape->approx_bbox) ) shape->delayed_shp=false;
 270
 271     /* Release state data */
 272     if (TRUE || !nr_matrix_test_transform_equal (&gc->transform, &shape->ctm, NR_EPSILON)) {
 273         /* Concept test */
 274         if (shape->fill_shp) {
 275             delete shape->fill_shp;
 276             shape->fill_shp = NULL;
 277         }
 278     }
 279     if (shape->stroke_shp) {
 280         delete shape->stroke_shp;
 281         shape->stroke_shp = NULL;
 282     }
 283     if (shape->fill_painter) {
 284         sp_painter_free (shape->fill_painter);
 285         shape->fill_painter = NULL;
 286     }
 287     if (shape->stroke_painter) {
 288         sp_painter_free (shape->stroke_painter);
 289         shape->stroke_painter = NULL;
 290     }
 291
 292     if (!shape->curve || !shape->style) return NR_ARENA_ITEM_STATE_ALL;
 293     if (sp_curve_is_empty (shape->curve)) return NR_ARENA_ITEM_STATE_ALL;
 294     if ( ( shape->_fill.paint.type() == NRArenaShape::Paint::NONE ) &&
 295          ( shape->_stroke.paint.type() == NRArenaShape::Paint::NONE ) )
 296     {
 297         return NR_ARENA_ITEM_STATE_ALL;
 298     }
 299
 300     /* Build state data */
 301     if ( shape->delayed_shp ) {
 302         item->bbox=shape->approx_bbox;
 303     } else {
 304         nr_arena_shape_update_stroke(shape,gc);
 305         nr_arena_shape_update_fill(shape,gc);
 306
 307         bbox.x0 = bbox.y0 = bbox.x1 = bbox.y1 = 0.0;
 308         nr_arena_shape_add_bboxes(shape,bbox);
 309
 310         shape->approx_bbox.x0 = (gint32)(bbox.x0 - 1.0F);
 311         shape->approx_bbox.y0 = (gint32)(bbox.y0 - 1.0F);
 312         shape->approx_bbox.x1 = (gint32)(bbox.x1 + 1.9999F);
 313         shape->approx_bbox.y1 = (gint32)(bbox.y1 + 1.9999F);
 314     }
 315
 316     if (nr_rect_d_test_empty (&bbox)) return NR_ARENA_ITEM_STATE_ALL;
 317
 318     item->bbox.x0 = (gint32)(bbox.x0 - 1.0F);
 319     item->bbox.y0 = (gint32)(bbox.y0 - 1.0F);
 320     item->bbox.x1 = (gint32)(bbox.x1 + 1.0F);
 321     item->bbox.y1 = (gint32)(bbox.y1 + 1.0F);
 322     nr_arena_request_render_rect (item->arena, &item->bbox);
 323
 324     item->render_opacity = TRUE;
 325     if ( shape->_fill.paint.type() == NRArenaShape::Paint::SERVER ) {
 326         if (gc && gc->parent) {
 327             shape->fill_painter = sp_paint_server_painter_new (shape->_fill.paint.server(),
 328                                                            NR::Matrix (&gc->transform), NR::Matrix (&gc->parent->transform),
 329                                                            &shape->paintbox);
 330         }
 331         item->render_opacity = FALSE;
 332     }
 333     if ( shape->_stroke.paint.type() == NRArenaShape::Paint::SERVER ) {
 334         if (gc && gc->parent) {
 335             shape->stroke_painter = sp_paint_server_painter_new (shape->_stroke.paint.server(),
 336                                                              NR::Matrix (&gc->transform), NR::Matrix (&gc->parent->transform),
 337                                                              &shape->paintbox);
 338         }
 339         item->render_opacity = FALSE;
 340     }
 341     if ( item->render_opacity == TRUE &&
 342          shape->_fill.paint.type()   != NRArenaShape::Paint::NONE &&
 343          shape->_stroke.paint.type() != NRArenaShape::Paint::NONE )
 344     {
 345         // don't merge item opacity with paint opacity if there is a stroke on the fill
 346         item->render_opacity = FALSE;
 347     }
 348
 349     if (beststate & NR_ARENA_ITEM_STATE_BBOX) {
 350         for (NRArenaItem *child = shape->markers; child != NULL; child = child->next) {
 351             nr_rect_l_union (&item->bbox, &item->bbox, &child->bbox);
 352         }
 353     }
 354
 355     return NR_ARENA_ITEM_STATE_ALL;
 356 }
 357
 358 int matrix_is_isometry(NR::Matrix p) {
 359     NR::Matrix   tp;
 360     // transposition
 361     tp[0]=p[0];
 362     tp[1]=p[2];
 363     tp[2]=p[1];
 364     tp[3]=p[3];
 365     for(int i = 4; i < 6; i++) // shut valgrind up :)
 366         tp[i] = p[i] = 0;
 367     NR::Matrix   isom = tp*p; // A^T * A = adjunct?
 368     // Is the adjunct nearly an identity function?
 369     if (isom.is_translation(0.01)) {
 370         // the transformation is an isometry -> no need to recompute
 371         // the uncrossed polygon
 372         if ( p.det() < 0 )
 373             return -1;
 374         else
 375             return 1;
 376     }
 377     return 0;
 378 }
 379
 380 /** force_shape is used for clipping paths, when we need the shape for clipping even if it's not filled */
 381 void
 382 nr_arena_shape_update_fill(NRArenaShape *shape, NRGC *gc, bool force_shape)
 383 {
 384     shape->delayed_shp = false;
 385     if ((shape->_fill.paint.type() != NRArenaShape::Paint::NONE || force_shape) &&
 386         ((shape->curve->end > 2) || (shape->curve->bpath[1].code == NR_CURVETO)) ) {
 387             if (TRUE || !shape->fill_shp) {
 388                 NR::Matrix  cached_to_new;
 389                 int isometry = 0;
 390                 if ( shape->cached_fill ) {
 391                     cached_to_new = shape->cached_fctm.inverse()*gc->transform;
 392                     isometry = matrix_is_isometry(cached_to_new);
 393                 }
 394                 if ( isometry == 0 ) {
 395                     if ( shape->cached_fill == NULL ) shape->cached_fill=new Shape;
 396                     shape->cached_fill->Reset();
 397
 398                     Path*  thePath=new Path;
 399                     Shape* theShape=new Shape;
 400                     {
 401                         NR::Matrix   tempMat(gc->transform);
 402                         thePath->LoadArtBPath(shape->curve->bpath,tempMat,true);
 403                     }
 404
 405                     thePath->Convert(1.0);
 406
 407                     thePath->Fill(theShape, 0);
 408
 409                     if ( shape->_fill.rule == NRArenaShape::EVEN_ODD ) {
 410                     shape->cached_fill->ConvertToShape(theShape, fill_oddEven);
 411                     // alternatively, this speeds up rendering of oddeven shapes but disables AA :(
 412                     //shape->cached_fill->Copy(theShape);
 413                     } else {
 414                     shape->cached_fill->ConvertToShape(theShape, fill_nonZero);
 415                     }
 416                     shape->cached_fctm=gc->transform;
 417                     delete theShape;
 418                     delete thePath;
 419                     if ( shape->fill_shp == NULL )
 420                    shape->fill_shp = new Shape;
 421
 422                     shape->fill_shp->Copy(shape->cached_fill);
 423
 424                 } else {
 425
 426                     if ( shape->fill_shp == NULL )
 427                         shape->fill_shp=new Shape;
 428
 429                     shape->fill_shp->Reset(shape->cached_fill->numberOfPoints(),
 430                                            shape->cached_fill->numberOfEdges());
 431                     for (int i = 0; i < shape->cached_fill->numberOfPoints(); i++)
 432                         shape->fill_shp->AddPoint(shape->cached_fill->getPoint(i).x * cached_to_new);
 433                     if ( isometry == 1 ) {
 434                         for (int i = 0; i < shape->cached_fill->numberOfEdges(); i++)
 435                             shape->fill_shp->AddEdge(shape->cached_fill->getEdge(i).st,
 436                                                      shape->cached_fill->getEdge(i).en);
 437                     } else if ( isometry == -1 ) { // need to flip poly.
 438                         for (int i = 0; i < shape->cached_fill->numberOfEdges(); i++)
 439                             shape->fill_shp->AddEdge(shape->cached_fill->getEdge(i).en,
 440                                                      shape->cached_fill->getEdge(i).st);
 441                     }
 442                     shape->fill_shp->ForceToPolygon();
 443                     shape->fill_shp->needPointsSorting();
 444                     shape->fill_shp->needEdgesSorting();
 445                 }
 446             }
 447         }
 448 }
 449
 450 void
 451 nr_arena_shape_update_stroke(NRArenaShape *shape,NRGC* gc)
 452 {
 453     SPStyle* style = shape->style;
 454
 455     shape->delayed_shp = false;
 456
 457     const float scale = NR_MATRIX_DF_EXPANSION (&gc->transform);
 458
 459     if (NR_ARENA_ITEM(shape)->arena->rendermode == RENDERMODE_OUTLINE ||
 460         ((shape->_stroke.paint.type() != NRArenaShape::Paint::NONE) &&
 461          ( fabs(shape->_stroke.width * scale) > 0.01 ))) { // sinon c'est 0=oon veut pas de bord
 462
 463         float width = MAX (0.125, shape->_stroke.width * scale);
 464         if (NR_ARENA_ITEM(shape)->arena->rendermode == RENDERMODE_OUTLINE)
 465             width = 0.5; // 1 pixel wide, independent of zoom
 466
 467         NR::Matrix cached_to_new;
 468
 469         int isometry = 0;
 470         if ( shape->cached_stroke ) {
 471             cached_to_new = shape->cached_sctm.inverse() * gc->transform;
 472             isometry = matrix_is_isometry(cached_to_new);
 473         }
 474
 475         if ( isometry == 0 ) {
 476             if ( shape->cached_stroke == NULL ) shape->cached_stroke=new Shape;
 477             shape->cached_stroke->Reset();
 478             Path*  thePath = new Path;
 479             Shape* theShape = new Shape;
 480             {
 481                 NR::Matrix   tempMat(gc->transform);
 482                 thePath->LoadArtBPath(shape->curve->bpath, tempMat, true);
 483             }
 484
 485             if (NR_ARENA_ITEM(shape)->arena->rendermode != RENDERMODE_OUTLINE)
 486                 thePath->Convert(1.0);
 487             else
 488                 thePath->Convert(4.0); // slightly rougher & faster
 489
 490             if (style->stroke_dash.n_dash && NR_ARENA_ITEM(shape)->arena->rendermode != RENDERMODE_OUTLINE) {
 491                 double dlen = 0.0;
 492                 for (int i = 0; i < style->stroke_dash.n_dash; i++) {
 493                     dlen += style->stroke_dash.dash[i] * scale;
 494                 }
 495                 if (dlen >= 1.0) {
 496                     NRVpathDash dash;
 497                     dash.offset = style->stroke_dash.offset * scale;
 498                     dash.n_dash = style->stroke_dash.n_dash;
 499                     dash.dash = g_new (double, dash.n_dash);
 500                     for (int i = 0; i < dash.n_dash; i++) {
 501                         dash.dash[i] = style->stroke_dash.dash[i] * scale;
 502                     }
 503                     int    nbD=dash.n_dash;
 504                     float  *dashs=(float*)malloc((nbD+1)*sizeof(float));
 505                     while ( dash.offset >= dlen ) dash.offset-=dlen;
 506                     dashs[0]=dash.dash[0];
 507                     for (int i=1; i<nbD; i++) {
 508                         dashs[i]=dashs[i-1]+dash.dash[i];
 509                     }
 510                     // modulo dlen
 511                     thePath->DashPolyline(0.0,0.0,dlen,nbD,dashs,true,dash.offset);
 512                     free(dashs);
 513                     g_free (dash.dash);
 514                 }
 515             }
 516             ButtType butt=butt_straight;
 517             switch(shape->_stroke.cap) {
 518             case NRArenaShape::BUTT_CAP:
 519                 butt = butt_straight;
 520                 break;
 521             case NRArenaShape::ROUND_CAP:
 522                 butt = butt_round;
 523                 break;
 524             case NRArenaShape::SQUARE_CAP:
 525                 butt = butt_square;
 526                 break;
 527             }
 528             JoinType join=join_straight;
 529             switch(shape->_stroke.join) {
 530             case NRArenaShape::MITRE_JOIN:
 531                 join = join_pointy;
 532                 break;
 533             case NRArenaShape::ROUND_JOIN:
 534                 join = join_round;
 535                 break;
 536             case NRArenaShape::BEVEL_JOIN:
 537                 join = join_straight;
 538                 break;
 539             }
 540
 541             if (NR_ARENA_ITEM(shape)->arena->rendermode == RENDERMODE_OUTLINE) {
 542                 butt = butt_straight;
 543                 join = join_straight;
 544             }
 545
 546             thePath->Stroke(theShape, false, 0.5*width, join, butt,
 547                             0.5*width*shape->_stroke.mitre_limit);
 548
 549
 550             if (NR_ARENA_ITEM(shape)->arena->rendermode == RENDERMODE_OUTLINE) {
 551                 // speeds it up, but uses evenodd for the stroke shape (which does not matter for 1-pixel wide outline)
 552                 shape->cached_stroke->Copy(theShape);
 553             } else {
 554                 shape->cached_stroke->ConvertToShape(theShape, fill_nonZero);
 555             }
 556
 557             shape->cached_sctm=gc->transform;
 558             delete thePath;
 559             delete theShape;
 560             if ( shape->stroke_shp == NULL ) shape->stroke_shp=new Shape;
 561
 562             shape->stroke_shp->Copy(shape->cached_stroke);
 563
 564         } else {
 565
 566             if ( shape->stroke_shp == NULL )
 567                 shape->stroke_shp=new Shape;
 568             shape->stroke_shp->Reset(shape->cached_stroke->numberOfPoints(), shape->cached_stroke->numberOfEdges());
 569             for (int i = 0; i < shape->cached_stroke->numberOfPoints(); i++)
 570                 shape->stroke_shp->AddPoint(shape->cached_stroke->getPoint(i).x * cached_to_new);
 571             if ( isometry == 1 ) {
 572                 for (int i = 0; i < shape->cached_stroke->numberOfEdges(); i++)
 573                     shape->stroke_shp->AddEdge(shape->cached_stroke->getEdge(i).st,
 574                                                shape->cached_stroke->getEdge(i).en);
 575             } else if ( isometry == -1 ) {
 576                 for (int i = 0; i < shape->cached_stroke->numberOfEdges(); i++)
 577                     shape->stroke_shp->AddEdge(shape->cached_stroke->getEdge(i).en,
 578                                                shape->cached_stroke->getEdge(i).st);
 579             }
 580             shape->stroke_shp->ForceToPolygon();
 581             shape->stroke_shp->needPointsSorting();
 582             shape->stroke_shp->needEdgesSorting();
 583         }
 584     }
 585 }
 586
 587
 588 void
 589 nr_arena_shape_add_bboxes(NRArenaShape* shape, NRRect &bbox)
 590 {
 591     if ( shape->stroke_shp ) {
 592         shape->stroke_shp->CalcBBox();
 593         shape->stroke_shp->leftX=floor(shape->stroke_shp->leftX);
 594         shape->stroke_shp->rightX=ceil(shape->stroke_shp->rightX);
 595         shape->stroke_shp->topY=floor(shape->stroke_shp->topY);
 596         shape->stroke_shp->bottomY=ceil(shape->stroke_shp->bottomY);
 597         if ( bbox.x0 >= bbox.x1 ) {
 598             if ( shape->stroke_shp->leftX < shape->stroke_shp->rightX ) {
 599                 bbox.x0=shape->stroke_shp->leftX;
 600                 bbox.x1=shape->stroke_shp->rightX;
 601             }
 602         } else {
 603             if ( shape->stroke_shp->leftX < bbox.x0 )
 604                 bbox.x0=shape->stroke_shp->leftX;
 605             if ( shape->stroke_shp->rightX > bbox.x1 )
 606                 bbox.x1=shape->stroke_shp->rightX;
 607         }
 608         if ( bbox.y0 >= bbox.y1 ) {
 609             if ( shape->stroke_shp->topY < shape->stroke_shp->bottomY ) {
 610                 bbox.y0=shape->stroke_shp->topY;
 611                 bbox.y1=shape->stroke_shp->bottomY;
 612             }
 613         } else {
 614             if ( shape->stroke_shp->topY < bbox.y0 )
 615                 bbox.y0=shape->stroke_shp->topY;
 616             if ( shape->stroke_shp->bottomY > bbox.y1 )
 617                 bbox.y1=shape->stroke_shp->bottomY;
 618         }
 619     }
 620     if ( shape->fill_shp ) {
 621         shape->fill_shp->CalcBBox();
 622         shape->fill_shp->leftX=floor(shape->fill_shp->leftX);
 623         shape->fill_shp->rightX=ceil(shape->fill_shp->rightX);
 624         shape->fill_shp->topY=floor(shape->fill_shp->topY);
 625         shape->fill_shp->bottomY=ceil(shape->fill_shp->bottomY);
 626         if ( bbox.x0 >= bbox.x1 ) {
 627             if ( shape->fill_shp->leftX < shape->fill_shp->rightX ) {
 628                 bbox.x0=shape->fill_shp->leftX;
 629                 bbox.x1=shape->fill_shp->rightX;
 630             }
 631         } else {
 632             if ( shape->fill_shp->leftX < bbox.x0 ) bbox.x0=shape->fill_shp->leftX;
 633             if ( shape->fill_shp->rightX > bbox.x1 ) bbox.x1=shape->fill_shp->rightX;
 634         }
 635         if ( bbox.y0 >= bbox.y1 ) {
 636             if ( shape->fill_shp->topY < shape->fill_shp->bottomY ) {
 637                 bbox.y0=shape->fill_shp->topY;
 638                 bbox.y1=shape->fill_shp->bottomY;
 639             }
 640         } else {
 641             if ( shape->fill_shp->topY < bbox.y0 ) bbox.y0=shape->fill_shp->topY;
 642             if ( shape->fill_shp->bottomY > bbox.y1 ) bbox.y1=shape->fill_shp->bottomY;
 643         }
 644     }
 645 }
 646 static unsigned int
 647 nr_arena_shape_render (NRArenaItem *item, NRRectL *area, NRPixBlock *pb, unsigned int flags)
 648 {
 649     NRArenaShape *shape = NR_ARENA_SHAPE (item);
 650
 651     if (!shape->curve) return item->state;
 652     if (!shape->style) return item->state;
 653
 654     if ( shape->delayed_shp ) {
 655         if ( nr_rect_l_test_intersect (area, &item->bbox) ) {
 656             NRGC   tempGC(NULL);
 657             tempGC.transform=shape->ctm;
 658             nr_arena_shape_update_stroke(shape,&tempGC);
 659             nr_arena_shape_update_fill(shape,&tempGC);
 660 /*      NRRect bbox;
 661         bbox.x0 = bbox.y0 = bbox.x1 = bbox.y1 = 0.0;
 662         nr_arena_shape_add_bboxes(shape,bbox);
 663         item->bbox.x0 = (gint32)(bbox.x0 - 1.0F);
 664         item->bbox.y0 = (gint32)(bbox.y0 - 1.0F);
 665         item->bbox.x1 = (gint32)(bbox.x1 + 1.0F);
 666         item->bbox.y1 = (gint32)(bbox.y1 + 1.0F);
 667         shape->approx_bbox=item->bbox;*/
 668         }
 669     }
 670
 671     SPStyle const *style = shape->style;
 672     if ( shape->fill_shp && NR_ARENA_ITEM(shape)->arena->rendermode != RENDERMODE_OUTLINE) {
 673         NRPixBlock m;
 674         guint32 rgba;
 675
 676         nr_pixblock_setup_fast (&m, NR_PIXBLOCK_MODE_A8, area->x0, area->y0, area->x1, area->y1, TRUE);
 677         nr_pixblock_render_shape_mask_or (m,shape->fill_shp);
 678         m.empty = FALSE;
 679
 680         if (shape->_fill.paint.type() == NRArenaShape::Paint::NONE) {
 681         // do not render fill in any way
 682       } else if (shape->_fill.paint.type() == NRArenaShape::Paint::COLOR) {
 683             if ( item->render_opacity ) {
 684                 rgba = sp_color_get_rgba32_falpha (&shape->_fill.paint.color(),
 685                                                    shape->_fill.opacity *
 686                                                    SP_SCALE24_TO_FLOAT (style->opacity.value));
 687             } else {
 688                 rgba = sp_color_get_rgba32_falpha (&shape->_fill.paint.color(),
 689                                                    shape->_fill.opacity);
 690             }
 691             nr_blit_pixblock_mask_rgba32 (pb, &m, rgba);
 692             pb->empty = FALSE;
 693       } else if (shape->_fill.paint.type() == NRArenaShape::Paint::SERVER) {
 694             if (shape->fill_painter) {
 695               nr_arena_render_paintserver_fill (pb, area, shape->fill_painter, shape->_fill.opacity, &m);
 696             }
 697         }
 698
 699         nr_pixblock_release (&m);
 700     }
 701
 702     if ( shape->stroke_shp ) {
 703         NRPixBlock m;
 704         guint32 rgba;
 705
 706         nr_pixblock_setup_fast (&m, NR_PIXBLOCK_MODE_A8, area->x0, area->y0, area->x1, area->y1, TRUE);
 707         nr_pixblock_render_shape_mask_or (m, shape->stroke_shp);
 708         m.empty = FALSE;
 709
 710         if (shape->_stroke.paint.type() == NRArenaShape::Paint::COLOR ||
 711             NR_ARENA_ITEM(shape)->arena->rendermode == RENDERMODE_OUTLINE) {
 712             if ( NR_ARENA_ITEM(shape)->arena->rendermode == RENDERMODE_OUTLINE) {
 713                 rgba = NR_ARENA_ITEM(shape)->arena->outlinecolor;
 714             } else if ( item->render_opacity ) {
 715                 rgba = sp_color_get_rgba32_falpha (&shape->_stroke.paint.color(),
 716                                                    shape->_stroke.opacity *
 717                                                    SP_SCALE24_TO_FLOAT (style->opacity.value));
 718             } else {
 719                 rgba = sp_color_get_rgba32_falpha (&shape->_stroke.paint.color(),
 720                                                    shape->_stroke.opacity);
 721             }
 722             nr_blit_pixblock_mask_rgba32 (pb, &m, rgba);
 723             pb->empty = FALSE;
 724         } else if (shape->_stroke.paint.type() == NRArenaShape::Paint::SERVER) {
 725             if (shape->stroke_painter) {
 726                 nr_arena_render_paintserver_fill (pb, area, shape->stroke_painter, shape->_stroke.opacity, &m);
 727             }
 728         }
 729
 730         nr_pixblock_release (&m);
 731     }
 732
 733     /* Just compose children into parent buffer */
 734     for (NRArenaItem *child = shape->markers; child != NULL; child = child->next) {
 735         unsigned int ret;
 736         ret = nr_arena_item_invoke_render (child, area, pb, flags);
 737         if (ret & NR_ARENA_ITEM_STATE_INVALID) return ret;
 738     }
 739
 740     return item->state;
 741 }
 742
 743 static guint
 744 nr_arena_shape_clip (NRArenaItem *item, NRRectL *area, NRPixBlock *pb)
 745 {
 746     NRArenaShape *shape = NR_ARENA_SHAPE (item);
 747     if (!shape->curve) return item->state;
 748
 749     if ( shape->delayed_shp ) {
 750         if ( nr_rect_l_test_intersect (area, &item->bbox) ) {
 751             NRGC   tempGC(NULL);
 752             tempGC.transform=shape->ctm;
 753             //nr_arena_shape_update_stroke(shape,&tempGC); // we don't need stroke for clipping
 754             nr_arena_shape_update_fill(shape, &tempGC, true);
 755             /*      NRRect bbox;
 756                     bbox.x0 = bbox.y0 = bbox.x1 = bbox.y1 = 0.0;
 757                     nr_arena_shape_add_bboxes(shape,bbox);
 758                     item->bbox.x0 = (gint32)(bbox.x0 - 1.0F);
 759                     item->bbox.y0 = (gint32)(bbox.y0 - 1.0F);
 760                     item->bbox.x1 = (gint32)(bbox.x1 + 1.0F);
 761                     item->bbox.y1 = (gint32)(bbox.y1 + 1.0F);
 762                     shape->approx_bbox=item->bbox;*/
 763         }
 764     }
 765
 766     if ( shape->fill_shp ) {
 767         NRPixBlock m;
 768
 769         /* fixme: We can OR in one step (Lauris) */
 770         nr_pixblock_setup_fast (&m, NR_PIXBLOCK_MODE_A8, area->x0, area->y0, area->x1, area->y1, TRUE);
 771         nr_pixblock_render_shape_mask_or (m,shape->fill_shp);
 772
 773         for (int y = area->y0; y < area->y1; y++) {
 774             unsigned char *s, *d;
 775             s = NR_PIXBLOCK_PX (&m) + (y - area->y0) * m.rs;
 776             d = NR_PIXBLOCK_PX (pb) + (y - area->y0) * pb->rs;
 777             for (int x = area->x0; x < area->x1; x++) {
 778           *d = NR_A7_NORMALIZED(*s,*d);
 779                 d ++;
 780                 s ++;
 781             }
 782         }
 783         nr_pixblock_release (&m);
 784         pb->empty = FALSE;
 785     }
 786
 787     return item->state;
 788 }
 789
 790 static NRArenaItem *
 791 nr_arena_shape_pick (NRArenaItem *item, NR::Point p, double delta, unsigned int /*sticky*/)
 792 {
 793     NRArenaShape *shape = NR_ARENA_SHAPE (item);
 794
 795     if (!shape->curve) return NULL;
 796     if (!shape->style) return NULL;
 797     if ( shape->delayed_shp ) {
 798         NRRectL  area;
 799         area.x0=(int)floor(p[NR::X]);
 800         area.x1=(int)ceil(p[NR::X]);
 801         area.y0=(int)floor(p[NR::Y]);
 802         area.y1=(int)ceil(p[NR::Y]);
 803         int idelta = (int)ceil(delta) + 1;
 804         // njh: inset rect
 805         area.x0-=idelta;
 806         area.x1+=idelta;
 807         area.y0-=idelta;
 808         area.y1+=idelta;
 809         if ( nr_rect_l_test_intersect (&area, &item->bbox) ) {
 810             NRGC   tempGC(NULL);
 811             tempGC.transform=shape->ctm;
 812             nr_arena_shape_update_stroke(shape,&tempGC);
 813             nr_arena_shape_update_fill(shape,&tempGC);
 814             /*      NRRect bbox;
 815                     bbox.x0 = bbox.y0 = bbox.x1 = bbox.y1 = 0.0;
 816                     nr_arena_shape_add_bboxes(shape,bbox);
 817                     item->bbox.x0 = (gint32)(bbox.x0 - 1.0F);
 818                     item->bbox.y0 = (gint32)(bbox.y0 - 1.0F);
 819                     item->bbox.x1 = (gint32)(bbox.x1 + 1.0F);
 820                     item->bbox.y1 = (gint32)(bbox.y1 + 1.0F);
 821                     shape->approx_bbox=item->bbox;*/
 822         }
 823     }
 824
 825     if (item->state & NR_ARENA_ITEM_STATE_RENDER) {
 826         if (shape->fill_shp && (shape->_fill.paint.type() != NRArenaShape::Paint::NONE)) {
 827             if (shape->fill_shp->PtWinding(p) > 0 ) return item;
 828         }
 829         if (shape->stroke_shp && (shape->_stroke.paint.type() != NRArenaShape::Paint::NONE)) {
 830             if (shape->stroke_shp->PtWinding(p) > 0 ) return item;
 831         }
 832         if (delta > 1e-3) {
 833             if (shape->fill_shp && (shape->_fill.paint.type() != NRArenaShape::Paint::NONE)) {
 834                 if (distanceLessThanOrEqual(shape->fill_shp, p, delta)) return item;
 835             }
 836             if (shape->stroke_shp && (shape->_stroke.paint.type() != NRArenaShape::Paint::NONE)) {
 837                 if (distanceLessThanOrEqual(shape->stroke_shp, p, delta)) return item;
 838             }
 839         }
 840     } else {
 841         NRBPath bp;
 842         bp.path = shape->curve->bpath;
 843         double dist = NR_HUGE;
 844         int wind = 0;
 845         nr_path_matrix_point_bbox_wind_distance(&bp, shape->ctm, p, NULL, &wind, &dist, NR_EPSILON);
 846         if (shape->_fill.paint.type() != NRArenaShape::Paint::NONE) {
 847             if (!shape->style->fill_rule.computed) {
 848                 if (wind != 0) return item;
 849             } else {
 850                 if (wind & 0x1) return item;
 851             }
 852         }
 853         if (shape->_stroke.paint.type() != NRArenaShape::Paint::NONE) {
 854             /* fixme: We do not take stroke width into account here (Lauris) */
 855             if (dist < delta) return item;
 856         }
 857     }
 858
 859     return NULL;
 860 }
 861
 862 /**
 863  *
 864  *  Requests a render of the shape, then if the shape is already a curve it
 865  *  unrefs the old curve; if the new curve is valid it creates a copy of the
 866  *  curve and adds it to the shape.  Finally, it requests an update of the
 867  *  arena for the shape.
 868  */
 869 void nr_arena_shape_set_path(NRArenaShape *shape, SPCurve *curve,bool justTrans)
 870 {
 871     g_return_if_fail (shape != NULL);
 872     g_return_if_fail (NR_IS_ARENA_SHAPE (shape));
 873
 874     if ( justTrans == false ) {
 875         // dirty cached versions
 876         if ( shape->cached_fill ) {
 877             delete shape->cached_fill;
 878             shape->cached_fill=NULL;
 879         }
 880         if ( shape->cached_stroke ) {
 881             delete shape->cached_stroke;
 882             shape->cached_stroke=NULL;
 883         }
 884     }
 885
 886     nr_arena_item_request_render (NR_ARENA_ITEM (shape));
 887
 888     if (shape->curve) {
 889         sp_curve_unref (shape->curve);
 890         shape->curve = NULL;
 891     }
 892
 893     if (curve) {
 894         shape->curve = curve;
 895         sp_curve_ref (curve);
 896     }
 897
 898     nr_arena_item_request_update (NR_ARENA_ITEM (shape), NR_ARENA_ITEM_STATE_ALL, FALSE);
 899 }
 900
 901 void NRArenaShape::setFill(SPPaintServer *server) {
 902     _fill.paint.set(server);
 903     _invalidateCachedFill();
 904 }
 905
 906 void NRArenaShape::setFill(SPColor const &color) {
 907     _fill.paint.set(color);
 908     _invalidateCachedFill();
 909 }
 910
 911 void NRArenaShape::setFillOpacity(double opacity) {
 912     _fill.opacity = opacity;
 913     _invalidateCachedFill();
 914 }
 915
 916 void NRArenaShape::setFillRule(NRArenaShape::FillRule rule) {
 917     _fill.rule = rule;
 918     _invalidateCachedFill();
 919 }
 920
 921 void NRArenaShape::setStroke(SPPaintServer *server) {
 922     _stroke.paint.set(server);
 923     _invalidateCachedStroke();
 924 }
 925
 926 void NRArenaShape::setStroke(SPColor const &color) {
 927     _stroke.paint.set(color);
 928     _invalidateCachedStroke();
 929 }
 930
 931 void NRArenaShape::setStrokeOpacity(double opacity) {
 932     _stroke.opacity = opacity;
 933     _invalidateCachedStroke();
 934 }
 935
 936 void NRArenaShape::setStrokeWidth(double width) {
 937     _stroke.width = width;
 938     _invalidateCachedStroke();
 939 }
 940
 941 void NRArenaShape::setMitreLimit(double limit) {
 942     _stroke.mitre_limit = limit;
 943     _invalidateCachedStroke();
 944 }
 945
 946 void NRArenaShape::setLineCap(NRArenaShape::CapType cap) {
 947     _stroke.cap = cap;
 948     _invalidateCachedStroke();
 949 }
 950
 951 void NRArenaShape::setLineJoin(NRArenaShape::JoinType join) {
 952     _stroke.join = join;
 953     _invalidateCachedStroke();
 954 }
 955
 956 /** nr_arena_shape_set_style
 957  *
 958  * Unrefs any existing style and ref's to the given one, then requests an update of the arena
 959  */
 960 void
 961 nr_arena_shape_set_style (NRArenaShape *shape, SPStyle *style)
 962 {
 963     g_return_if_fail (shape != NULL);
 964     g_return_if_fail (NR_IS_ARENA_SHAPE (shape));
 965
 966     if (style) sp_style_ref (style);
 967     if (shape->style) sp_style_unref (shape->style);
 968     shape->style = style;
 969
 970     switch (style->fill.type) {
 971         case SP_PAINT_TYPE_NONE: {
 972             shape->setFill(NULL);
 973             break;
 974         }
 975         case SP_PAINT_TYPE_COLOR: {
 976             shape->setFill(style->fill.value.color);
 977             break;
 978         }
 979         case SP_PAINT_TYPE_PAINTSERVER: {
 980             shape->setFill(style->fill.value.paint.server);
 981             break;
 982         }
 983         default: {
 984             g_assert_not_reached();
 985         }
 986     }
 987     shape->setFillOpacity(SP_SCALE24_TO_FLOAT(style->fill_opacity.value));
 988     switch (style->fill_rule.computed) {
 989         case SP_WIND_RULE_EVENODD: {
 990             shape->setFillRule(NRArenaShape::EVEN_ODD);
 991             break;
 992         }
 993         case SP_WIND_RULE_NONZERO: {
 994             shape->setFillRule(NRArenaShape::NONZERO);
 995             break;
 996         }
 997         default: {
 998             g_assert_not_reached();
 999         }
1000     }
1001
1002     switch (style->stroke.type) {
1003         case SP_PAINT_TYPE_NONE: {
1004             shape->setStroke(NULL);
1005             break;
1006         }
1007         case SP_PAINT_TYPE_COLOR: {
1008             shape->setStroke(style->stroke.value.color);
1009             break;
1010         }
1011         case SP_PAINT_TYPE_PAINTSERVER: {
1012             shape->setStroke(style->stroke.value.paint.server);
1013             break;
1014         }
1015         default: {
1016             g_assert_not_reached();
1017         }
1018     }
1019     shape->setStrokeWidth(style->stroke_width.computed);
1020     shape->setStrokeOpacity(SP_SCALE24_TO_FLOAT(style->stroke_opacity.value));
1021     switch (style->stroke_linecap.computed) {
1022         case SP_STROKE_LINECAP_ROUND: {
1023             shape->setLineCap(NRArenaShape::ROUND_CAP);
1024             break;
1025         }
1026         case SP_STROKE_LINECAP_SQUARE: {
1027             shape->setLineCap(NRArenaShape::SQUARE_CAP);
1028             break;
1029         }
1030         case SP_STROKE_LINECAP_BUTT: {
1031             shape->setLineCap(NRArenaShape::BUTT_CAP);
1032             break;
1033         }
1034         default: {
1035             g_assert_not_reached();
1036         }
1037     }
1038     switch (style->stroke_linejoin.computed) {
1039         case SP_STROKE_LINEJOIN_ROUND: {
1040             shape->setLineJoin(NRArenaShape::ROUND_JOIN);
1041             break;
1042         }
1043         case SP_STROKE_LINEJOIN_BEVEL: {
1044             shape->setLineJoin(NRArenaShape::BEVEL_JOIN);
1045             break;
1046         }
1047         case SP_STROKE_LINEJOIN_MITER: {
1048             shape->setLineJoin(NRArenaShape::MITRE_JOIN);
1049             break;
1050         }
1051         default: {
1052             g_assert_not_reached();
1053         }
1054     }
1055     shape->setMitreLimit(style->stroke_miterlimit.value);
1056
1057     nr_arena_item_request_update(shape, NR_ARENA_ITEM_STATE_ALL, FALSE);
1058 }
1059
1060 void
1061 nr_arena_shape_set_paintbox (NRArenaShape *shape, const NRRect *pbox)
1062 {
1063     g_return_if_fail (shape != NULL);
1064     g_return_if_fail (NR_IS_ARENA_SHAPE (shape));
1065     g_return_if_fail (pbox != NULL);
1066
1067     if ((pbox->x0 < pbox->x1) && (pbox->y0 < pbox->y1)) {
1068         shape->paintbox = *pbox;
1069     } else {
1070         /* fixme: We kill warning, although not sure what to do here (Lauris) */
1071         shape->paintbox.x0 = shape->paintbox.y0 = 0.0F;
1072         shape->paintbox.x1 = shape->paintbox.y1 = 256.0F;
1073     }
1074
1075     nr_arena_item_request_update(shape, NR_ARENA_ITEM_STATE_ALL, FALSE);
1076 }
1077
1078 void NRArenaShape::setPaintBox(NR::Rect const &pbox)
1079 {
1080     paintbox.x0 = pbox.min()[NR::X];
1081     paintbox.y0 = pbox.min()[NR::Y];
1082     paintbox.x1 = pbox.max()[NR::X];
1083     paintbox.y1 = pbox.max()[NR::Y];
1084
1085     nr_arena_item_request_update(this, NR_ARENA_ITEM_STATE_ALL, FALSE);
1086 }
1087
1088 static void
1089 shape_run_A8_OR (raster_info &dest,void */*data*/,int st,float vst,int en,float ven)
1090 {
1091     if ( st >= en ) return;
1092     if ( vst < 0 ) vst=0;
1093     if ( vst > 1 ) vst=1;
1094     if ( ven < 0 ) ven=0;
1095     if ( ven > 1 ) ven=1;
1096     float   sv=vst;
1097     float   dv=ven-vst;
1098     int     len=en-st;
1099     unsigned char*   d=(unsigned char*)dest.buffer;
1100     d+=(st-dest.startPix);
1101     if ( fabs(dv) < 0.001 ) {
1102         if ( vst > 0.999 ) {
1103             /* Simple copy */
1104             while (len > 0) {
1105                 d[0] = 255;
1106                 d += 1;
1107                 len -= 1;
1108             }
1109         } else {
1110             sv*=256;
1111             unsigned int c0_24=(int)sv;
1112             c0_24&=0xFF;
1113             while (len > 0) {
1114                 unsigned int da;
1115                 /* Draw */
1116                 da = NR_A7(c0_24,d[0]);
1117                 d[0] = NR_PREMUL_SINGLE(da);
1118                 d += 1;
1119                 len -= 1;
1120             }
1121         }
1122     } else {
1123         if ( en <= st+1 ) {
1124             sv=0.5*(vst+ven);
1125             sv*=256;
1126             unsigned int c0_24=(int)sv;
1127             c0_24&=0xFF;
1128             unsigned int da;
1129             /* Draw */
1130             da = NR_A7(c0_24,d[0]);
1131             d[0] = NR_PREMUL_SINGLE(da);
1132         } else {
1133             dv/=len;
1134             sv+=0.5*dv; // correction trapezoidale
1135             sv*=16777216;
1136             dv*=16777216;
1137             int c0_24 = static_cast<int>(CLAMP(sv, 0, 16777216));
1138             int s0_24 = static_cast<int>(dv);
1139             while (len > 0) {
1140                 unsigned int ca, da;
1141                 /* Draw */
1142                 ca = c0_24 >> 16;
1143                 if ( ca > 255 ) ca=255;
1144                 da = NR_A7(ca,d[0]);
1145                 d[0] = NR_PREMUL_SINGLE(da);
1146                 d += 1;
1147                 c0_24 += s0_24;
1148                 c0_24 = CLAMP (c0_24, 0, 16777216);
1149                 len -= 1;
1150             }
1151         }
1152     }
1153 }
1154
1155 void nr_pixblock_render_shape_mask_or (NRPixBlock &m,Shape* theS)
1156 {
1157
1158     theS->CalcBBox();
1159     float  l=theS->leftX,r=theS->rightX,t=theS->topY,b=theS->bottomY;
1160     int    il,ir,it,ib;
1161     il=(int)floor(l);
1162     ir=(int)ceil(r);
1163     it=(int)floor(t);
1164     ib=(int)ceil(b);
1165
1166     if ( il >= m.area.x1 || ir <= m.area.x0 || it >= m.area.y1 || ib <= m.area.y0 ) return;
1167     if ( il < m.area.x0 ) il=m.area.x0;
1168     if ( it < m.area.y0 ) it=m.area.y0;
1169     if ( ir > m.area.x1 ) ir=m.area.x1;
1170     if ( ib > m.area.y1 ) ib=m.area.y1;
1171
1172     // version par FloatLigne
1173     int    curPt;
1174     float  curY;
1175     theS->BeginQuickRaster(curY, curPt);
1176
1177     FloatLigne* theI=new FloatLigne();
1178     IntLigne*   theIL=new IntLigne();
1179
1180     theS->DirectQuickScan(curY,curPt,(float)(it),true,1.0);
1181
1182     char* mdata=(char*)m.data.px;
1183     if ( m.size == NR_PIXBLOCK_SIZE_TINY ) mdata=(char*)m.data.p;
1184     uint32_t* ligStart=((uint32_t*)(mdata+((il-m.area.x0)+m.rs*(it-m.area.y0))));
1185     for (int y=it;y<ib;y++) {
1186         theI->Reset();
1187         theS->QuickScan(curY,curPt,((float)(y+1)),theI,1.0);
1188         theI->Flatten();
1189         theIL->Copy(theI);
1190
1191         raster_info  dest;
1192         dest.startPix=il;
1193         dest.endPix=ir;
1194         dest.sth=il;
1195         dest.stv=y;
1196         dest.buffer=ligStart;
1197         theIL->Raster(dest,NULL,shape_run_A8_OR);
1198         ligStart=((uint32_t*)(((char*)ligStart)+m.rs));
1199     }
1200     theS->EndQuickRaster();
1201     delete theI;
1202     delete theIL;
1203
1204     /*  // version par BitLigne
1205         int    curPt;
1206         float  curY;
1207         theS->BeginRaster(curY,curPt,1.0);
1208
1209         BitLigne*   theI[4];
1210         for (int i=0;i<4;i++) theI[i]=new BitLigne(il,ir);
1211         IntLigne*   theIL=new IntLigne();
1212
1213         theS->Scan(curY,curPt,(float)(it),0.25);
1214
1215         char* mdata=(char*)m.data.px;
1216         if ( m.size == NR_PIXBLOCK_SIZE_TINY ) mdata=(char*)m.data.p;
1217         uint32_t* ligStart=((uint32_t*)(mdata+((il-m.area.x0)+m.rs*(it-m.area.y0))));
1218         for (int y=it;y<ib;y++) {
1219         for (int i=0;i<4;i++) theI[i]->Reset();
1220         if ( y&0x00000003 ) {
1221         theS->Scan(curY,curPt,((float)(y+0.25)),fill_oddEven,theI[0],false,0.25);
1222         theS->Scan(curY,curPt,((float)(y+0.5)),fill_oddEven,theI[1],false,0.25);
1223         theS->Scan(curY,curPt,((float)(y+0.75)),fill_oddEven,theI[2],false,0.25);
1224         theS->Scan(curY,curPt,((float)(y+1.0)),fill_oddEven,theI[3],false,0.25);
1225         } else {
1226         theS->Scan(curY,curPt,((float)(y+0.25)),fill_oddEven,theI[0],true,0.25);
1227         theS->Scan(curY,curPt,((float)(y+0.5)),fill_oddEven,theI[1],true,0.25);
1228         theS->Scan(curY,curPt,((float)(y+0.75)),fill_oddEven,theI[2],true,0.25);
1229         theS->Scan(curY,curPt,((float)(y+1.0)),fill_oddEven,theI[3],true,0.25);
1230         }
1231         theIL->Copy(4,theI);
1232
1233         raster_info  dest;
1234         dest.startPix=il;
1235         dest.endPix=ir;
1236         dest.sth=il;
1237         dest.stv=y;
1238         dest.buffer=ligStart;
1239         theIL->Raster(dest,NULL,shape_run_A8_OR);
1240         ligStart=((uint32_t*)(((char*)ligStart)+m.rs));
1241         }
1242         theS->EndRaster();
1243         for (int i=0;i<4;i++) delete theI[i];
1244         delete theIL;*/
1245
1246 /*  // version par BitLigne directe
1247     int    curPt;
1248     float  curY;
1249     theS->BeginQuickRaster(curY,curPt,1.0);
1250
1251     BitLigne*   theI[4];
1252     for (int i=0;i<4;i++) theI[i]=new BitLigne(il,ir);
1253     IntLigne*   theIL=new IntLigne();
1254
1255     theS->DirectQuickScan(curY,curPt,(float)(it),true,0.25);
1256
1257     char* mdata=(char*)m.data.px;
1258     if ( m.size == NR_PIXBLOCK_SIZE_TINY ) mdata=(char*)m.data.p;
1259     uint32_t* ligStart=((uint32_t*)(mdata+((il-m.area.x0)+m.rs*(it-m.area.y0))));
1260     for (int y=it;y<ib;y++) {
1261     for (int i=0;i<4;i++) theI[i]->Reset();
1262     if ( y&0x00000003 ) {
1263     theS->QuickScan(curY,curPt,((float)(y+0.25)),fill_oddEven,theI[0],false,0.25);
1264     theS->QuickScan(curY,curPt,((float)(y+0.5)),fill_oddEven,theI[1],false,0.25);
1265     theS->QuickScan(curY,curPt,((float)(y+0.75)),fill_oddEven,theI[2],false,0.25);
1266     theS->QuickScan(curY,curPt,((float)(y+1.0)),fill_oddEven,theI[3],false,0.25);
1267     } else {
1268     theS->QuickScan(curY,curPt,((float)(y+0.25)),fill_oddEven,theI[0],true,0.25);
1269     theS->QuickScan(curY,curPt,((float)(y+0.5)),fill_oddEven,theI[1],true,0.25);
1270     theS->QuickScan(curY,curPt,((float)(y+0.75)),fill_oddEven,theI[2],true,0.25);
1271     theS->QuickScan(curY,curPt,((float)(y+1.0)),fill_oddEven,theI[3],true,0.25);
1272     }
1273     theIL->Copy(4,theI);
1274
1275     raster_info  dest;
1276     dest.startPix=il;
1277     dest.endPix=ir;
1278     dest.sth=il;
1279     dest.stv=y;
1280     dest.buffer=ligStart;
1281     theIL->Raster(dest,NULL,shape_run_A8_OR);
1282     ligStart=((uint32_t*)(((char*)ligStart)+m.rs));
1283     }
1284     theS->EndQuickRaster();
1285     for (int i=0;i<4;i++) delete theI[i];
1286     delete theIL;*/
1287 }
1288
1289
1290 /*
1291   Local Variables:
1292   mode:c++
1293   c-file-style:"stroustrup"
1294   c-file-offsets:((innamespace . 0)(inline-open . 0)(case-label . +))
1295   indent-tabs-mode:nil
1296   fill-column:99
1297   End:
1298 */
1299 // vim: filetype=cpp:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:encoding=utf-8:textwidth=99 :