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);
 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 void
 381 nr_arena_shape_update_fill(NRArenaShape *shape,NRGC *gc)
 382 {
 383     shape->delayed_shp = false;
 384     if ((shape->_fill.paint.type() != NRArenaShape::Paint::NONE) &&
 385         ((shape->curve->end > 2) || (shape->curve->bpath[1].code == NR_CURVETO)) ) {
 386             if (TRUE || !shape->fill_shp) {
 387                 NR::Matrix  cached_to_new;
 388                 int isometry = 0;
 389                 if ( shape->cached_fill ) {
 390                     cached_to_new = shape->cached_fctm.inverse()*gc->transform;
 391                     isometry = matrix_is_isometry(cached_to_new);
 392                 }
 393                 if ( isometry == 0 ) {
 394                     if ( shape->cached_fill == NULL ) shape->cached_fill=new Shape;
 395                     shape->cached_fill->Reset();
 396
 397                     Path*  thePath=new Path;
 398                     Shape* theShape=new Shape;
 399                     {
 400                         NR::Matrix   tempMat(gc->transform);
 401                         thePath->LoadArtBPath(shape->curve->bpath,tempMat,true);
 402                     }
 403
 404                     thePath->Convert(1.0);
 405
 406                     thePath->Fill(theShape, 0);
 407
 408                     if ( shape->_fill.rule == NRArenaShape::EVEN_ODD ) {
 409                     shape->cached_fill->ConvertToShape(theShape, fill_oddEven);
 410                     // alternatively, this speeds up rendering of oddeven shapes but disables AA :(
 411                     //shape->cached_fill->Copy(theShape);
 412                     } else {
 413                     shape->cached_fill->ConvertToShape(theShape, fill_nonZero);
 414                     }
 415                     shape->cached_fctm=gc->transform;
 416                     delete theShape;
 417                     delete thePath;
 418                     if ( shape->fill_shp == NULL )
 419                    shape->fill_shp = new Shape;
 420
 421                     shape->fill_shp->Copy(shape->cached_fill);
 422
 423                 } else {
 424
 425                     if ( shape->fill_shp == NULL )
 426                         shape->fill_shp=new Shape;
 427                     shape->fill_shp->Reset(shape->cached_fill->numberOfPoints(),
 428                                            shape->cached_fill->numberOfEdges());
 429                     for (int i = 0; i < shape->cached_fill->numberOfPoints(); i++)
 430                         shape->fill_shp->AddPoint(shape->cached_fill->getPoint(i).x * cached_to_new);
 431                     if ( isometry == 1 ) {
 432                         for (int i = 0; i < shape->cached_fill->numberOfEdges(); i++)
 433                             shape->fill_shp->AddEdge(shape->cached_fill->getEdge(i).st,
 434                                                      shape->cached_fill->getEdge(i).en);
 435                     } else if ( isometry == -1 ) { // need to flip poly.
 436                         for (int i = 0; i < shape->cached_fill->numberOfEdges(); i++)
 437                             shape->fill_shp->AddEdge(shape->cached_fill->getEdge(i).en,
 438                                                      shape->cached_fill->getEdge(i).st);
 439                     }
 440                     shape->fill_shp->ForceToPolygon();
 441                     shape->fill_shp->needPointsSorting();
 442                     shape->fill_shp->needEdgesSorting();
 443                 }
 444             }
 445         }
 446 }
 447
 448 void
 449 nr_arena_shape_update_stroke(NRArenaShape *shape,NRGC* gc)
 450 {
 451     SPStyle* style = shape->style;
 452
 453     shape->delayed_shp = false;
 454
 455     const float scale = NR_MATRIX_DF_EXPANSION (&gc->transform);
 456
 457     if (NR_ARENA_ITEM(shape)->arena->rendermode == RENDERMODE_OUTLINE ||
 458         ((shape->_stroke.paint.type() != NRArenaShape::Paint::NONE) &&
 459          ( fabs(shape->_stroke.width * scale) > 0.01 ))) { // sinon c'est 0=oon veut pas de bord
 460
 461         float width = MAX (0.125, shape->_stroke.width * scale);
 462         if (NR_ARENA_ITEM(shape)->arena->rendermode == RENDERMODE_OUTLINE)
 463             width = 0.5; // 1 pixel wide, independent of zoom
 464
 465         NR::Matrix cached_to_new;
 466
 467         int isometry = 0;
 468         if ( shape->cached_stroke ) {
 469             cached_to_new = shape->cached_sctm.inverse() * gc->transform;
 470             isometry = matrix_is_isometry(cached_to_new);
 471         }
 472
 473         if ( isometry == 0 ) {
 474             if ( shape->cached_stroke == NULL ) shape->cached_stroke=new Shape;
 475             shape->cached_stroke->Reset();
 476             Path*  thePath = new Path;
 477             Shape* theShape = new Shape;
 478             {
 479                 NR::Matrix   tempMat(gc->transform);
 480                 thePath->LoadArtBPath(shape->curve->bpath, tempMat, true);
 481             }
 482
 483             if (NR_ARENA_ITEM(shape)->arena->rendermode != RENDERMODE_OUTLINE)
 484                 thePath->Convert(1.0);
 485             else
 486                 thePath->Convert(4.0); // slightly rougher & faster
 487
 488             if (style->stroke_dash.n_dash && NR_ARENA_ITEM(shape)->arena->rendermode != RENDERMODE_OUTLINE) {
 489                 double dlen = 0.0;
 490                 for (int i = 0; i < style->stroke_dash.n_dash; i++) {
 491                     dlen += style->stroke_dash.dash[i] * scale;
 492                 }
 493                 if (dlen >= 1.0) {
 494                     NRVpathDash dash;
 495                     dash.offset = style->stroke_dash.offset * scale;
 496                     dash.n_dash = style->stroke_dash.n_dash;
 497                     dash.dash = g_new (double, dash.n_dash);
 498                     for (int i = 0; i < dash.n_dash; i++) {
 499                         dash.dash[i] = style->stroke_dash.dash[i] * scale;
 500                     }
 501                     int    nbD=dash.n_dash;
 502                     float  *dashs=(float*)malloc((nbD+1)*sizeof(float));
 503                     while ( dash.offset >= dlen ) dash.offset-=dlen;
 504                     dashs[0]=dash.dash[0];
 505                     for (int i=1; i<nbD; i++) {
 506                         dashs[i]=dashs[i-1]+dash.dash[i];
 507                     }
 508                     // modulo dlen
 509                     thePath->DashPolyline(0.0,0.0,dlen,nbD,dashs,true,dash.offset);
 510                     free(dashs);
 511                     g_free (dash.dash);
 512                 }
 513             }
 514             ButtType butt=butt_straight;
 515             switch(shape->_stroke.cap) {
 516             case NRArenaShape::BUTT_CAP:
 517                 butt = butt_straight;
 518                 break;
 519             case NRArenaShape::ROUND_CAP:
 520                 butt = butt_round;
 521                 break;
 522             case NRArenaShape::SQUARE_CAP:
 523                 butt = butt_square;
 524                 break;
 525             }
 526             JoinType join=join_straight;
 527             switch(shape->_stroke.join) {
 528             case NRArenaShape::MITRE_JOIN:
 529                 join = join_pointy;
 530                 break;
 531             case NRArenaShape::ROUND_JOIN:
 532                 join = join_round;
 533                 break;
 534             case NRArenaShape::BEVEL_JOIN:
 535                 join = join_straight;
 536                 break;
 537             }
 538
 539             if (NR_ARENA_ITEM(shape)->arena->rendermode == RENDERMODE_OUTLINE) {
 540                 butt = butt_straight;
 541                 join = join_straight;
 542             }
 543
 544             thePath->Stroke(theShape, false, 0.5*width, join, butt,
 545                             0.5*width*shape->_stroke.mitre_limit);
 546
 547
 548             if (NR_ARENA_ITEM(shape)->arena->rendermode == RENDERMODE_OUTLINE) {
 549                 // speeds it up, but uses evenodd for the stroke shape (which does not matter for 1-pixel wide outline)
 550                 shape->cached_stroke->Copy(theShape);
 551             } else {
 552                 shape->cached_stroke->ConvertToShape(theShape, fill_nonZero);
 553             }
 554
 555             shape->cached_sctm=gc->transform;
 556             delete thePath;
 557             delete theShape;
 558             if ( shape->stroke_shp == NULL ) shape->stroke_shp=new Shape;
 559
 560             shape->stroke_shp->Copy(shape->cached_stroke);
 561
 562         } else {
 563
 564             if ( shape->stroke_shp == NULL )
 565                 shape->stroke_shp=new Shape;
 566             shape->stroke_shp->Reset(shape->cached_stroke->numberOfPoints(), shape->cached_stroke->numberOfEdges());
 567             for (int i = 0; i < shape->cached_stroke->numberOfPoints(); i++)
 568                 shape->stroke_shp->AddPoint(shape->cached_stroke->getPoint(i).x * cached_to_new);
 569             if ( isometry == 1 ) {
 570                 for (int i = 0; i < shape->cached_stroke->numberOfEdges(); i++)
 571                     shape->stroke_shp->AddEdge(shape->cached_stroke->getEdge(i).st,
 572                                                shape->cached_stroke->getEdge(i).en);
 573             } else if ( isometry == -1 ) {
 574                 for (int i = 0; i < shape->cached_stroke->numberOfEdges(); i++)
 575                     shape->stroke_shp->AddEdge(shape->cached_stroke->getEdge(i).en,
 576                                                shape->cached_stroke->getEdge(i).st);
 577             }
 578             shape->stroke_shp->ForceToPolygon();
 579             shape->stroke_shp->needPointsSorting();
 580             shape->stroke_shp->needEdgesSorting();
 581         }
 582     }
 583 }
 584
 585
 586 void
 587 nr_arena_shape_add_bboxes(NRArenaShape* shape, NRRect &bbox)
 588 {
 589     if ( shape->stroke_shp ) {
 590         shape->stroke_shp->CalcBBox();
 591         shape->stroke_shp->leftX=floor(shape->stroke_shp->leftX);
 592         shape->stroke_shp->rightX=ceil(shape->stroke_shp->rightX);
 593         shape->stroke_shp->topY=floor(shape->stroke_shp->topY);
 594         shape->stroke_shp->bottomY=ceil(shape->stroke_shp->bottomY);
 595         if ( bbox.x0 >= bbox.x1 ) {
 596             if ( shape->stroke_shp->leftX < shape->stroke_shp->rightX ) {
 597                 bbox.x0=shape->stroke_shp->leftX;
 598                 bbox.x1=shape->stroke_shp->rightX;
 599             }
 600         } else {
 601             if ( shape->stroke_shp->leftX < bbox.x0 )
 602                 bbox.x0=shape->stroke_shp->leftX;
 603             if ( shape->stroke_shp->rightX > bbox.x1 )
 604                 bbox.x1=shape->stroke_shp->rightX;
 605         }
 606         if ( bbox.y0 >= bbox.y1 ) {
 607             if ( shape->stroke_shp->topY < shape->stroke_shp->bottomY ) {
 608                 bbox.y0=shape->stroke_shp->topY;
 609                 bbox.y1=shape->stroke_shp->bottomY;
 610             }
 611         } else {
 612             if ( shape->stroke_shp->topY < bbox.y0 )
 613                 bbox.y0=shape->stroke_shp->topY;
 614             if ( shape->stroke_shp->bottomY > bbox.y1 )
 615                 bbox.y1=shape->stroke_shp->bottomY;
 616         }
 617     }
 618     if ( shape->fill_shp ) {
 619         shape->fill_shp->CalcBBox();
 620         shape->fill_shp->leftX=floor(shape->fill_shp->leftX);
 621         shape->fill_shp->rightX=ceil(shape->fill_shp->rightX);
 622         shape->fill_shp->topY=floor(shape->fill_shp->topY);
 623         shape->fill_shp->bottomY=ceil(shape->fill_shp->bottomY);
 624         if ( bbox.x0 >= bbox.x1 ) {
 625             if ( shape->fill_shp->leftX < shape->fill_shp->rightX ) {
 626                 bbox.x0=shape->fill_shp->leftX;
 627                 bbox.x1=shape->fill_shp->rightX;
 628             }
 629         } else {
 630             if ( shape->fill_shp->leftX < bbox.x0 ) bbox.x0=shape->fill_shp->leftX;
 631             if ( shape->fill_shp->rightX > bbox.x1 ) bbox.x1=shape->fill_shp->rightX;
 632         }
 633         if ( bbox.y0 >= bbox.y1 ) {
 634             if ( shape->fill_shp->topY < shape->fill_shp->bottomY ) {
 635                 bbox.y0=shape->fill_shp->topY;
 636                 bbox.y1=shape->fill_shp->bottomY;
 637             }
 638         } else {
 639             if ( shape->fill_shp->topY < bbox.y0 ) bbox.y0=shape->fill_shp->topY;
 640             if ( shape->fill_shp->bottomY > bbox.y1 ) bbox.y1=shape->fill_shp->bottomY;
 641         }
 642     }
 643 }
 644 static unsigned int
 645 nr_arena_shape_render (NRArenaItem *item, NRRectL *area, NRPixBlock *pb, unsigned int flags)
 646 {
 647     NRArenaShape *shape = NR_ARENA_SHAPE (item);
 648
 649     if (!shape->curve) return item->state;
 650     if (!shape->style) return item->state;
 651
 652     if ( shape->delayed_shp ) {
 653         if ( nr_rect_l_test_intersect (area, &item->bbox) ) {
 654             NRGC   tempGC(NULL);
 655             tempGC.transform=shape->ctm;
 656             nr_arena_shape_update_stroke(shape,&tempGC);
 657             nr_arena_shape_update_fill(shape,&tempGC);
 658 /*      NRRect bbox;
 659         bbox.x0 = bbox.y0 = bbox.x1 = bbox.y1 = 0.0;
 660         nr_arena_shape_add_bboxes(shape,bbox);
 661         item->bbox.x0 = (gint32)(bbox.x0 - 1.0F);
 662         item->bbox.y0 = (gint32)(bbox.y0 - 1.0F);
 663         item->bbox.x1 = (gint32)(bbox.x1 + 1.0F);
 664         item->bbox.y1 = (gint32)(bbox.y1 + 1.0F);
 665         shape->approx_bbox=item->bbox;*/
 666         }
 667     }
 668
 669     SPStyle const *style = shape->style;
 670     if ( shape->fill_shp && NR_ARENA_ITEM(shape)->arena->rendermode != RENDERMODE_OUTLINE) {
 671         NRPixBlock m;
 672         guint32 rgba;
 673
 674         nr_pixblock_setup_fast (&m, NR_PIXBLOCK_MODE_A8, area->x0, area->y0, area->x1, area->y1, TRUE);
 675         nr_pixblock_render_shape_mask_or (m,shape->fill_shp);
 676         m.empty = FALSE;
 677
 678         if (shape->_fill.paint.type() == NRArenaShape::Paint::NONE) {
 679         // do not render fill in any way
 680       } else if (shape->_fill.paint.type() == NRArenaShape::Paint::COLOR) {
 681             if ( item->render_opacity ) {
 682                 rgba = sp_color_get_rgba32_falpha (&shape->_fill.paint.color(),
 683                                                    shape->_fill.opacity *
 684                                                    SP_SCALE24_TO_FLOAT (style->opacity.value));
 685             } else {
 686                 rgba = sp_color_get_rgba32_falpha (&shape->_fill.paint.color(),
 687                                                    shape->_fill.opacity);
 688             }
 689             nr_blit_pixblock_mask_rgba32 (pb, &m, rgba);
 690             pb->empty = FALSE;
 691       } else if (shape->_fill.paint.type() == NRArenaShape::Paint::SERVER) {
 692             if (shape->fill_painter) {
 693               nr_arena_render_paintserver_fill (pb, area, shape->fill_painter, shape->_fill.opacity, &m);
 694             }
 695         }
 696
 697         nr_pixblock_release (&m);
 698     }
 699
 700     if ( shape->stroke_shp ) {
 701         NRPixBlock m;
 702         guint32 rgba;
 703
 704         nr_pixblock_setup_fast (&m, NR_PIXBLOCK_MODE_A8, area->x0, area->y0, area->x1, area->y1, TRUE);
 705         nr_pixblock_render_shape_mask_or (m, shape->stroke_shp);
 706         m.empty = FALSE;
 707
 708         if (shape->_stroke.paint.type() == NRArenaShape::Paint::COLOR ||
 709             NR_ARENA_ITEM(shape)->arena->rendermode == RENDERMODE_OUTLINE) {
 710             if ( NR_ARENA_ITEM(shape)->arena->rendermode == RENDERMODE_OUTLINE) {
 711                 rgba = NR_ARENA_ITEM(shape)->arena->outlinecolor;
 712             } else if ( item->render_opacity ) {
 713                 rgba = sp_color_get_rgba32_falpha (&shape->_stroke.paint.color(),
 714                                                    shape->_stroke.opacity *
 715                                                    SP_SCALE24_TO_FLOAT (style->opacity.value));
 716             } else {
 717                 rgba = sp_color_get_rgba32_falpha (&shape->_stroke.paint.color(),
 718                                                    shape->_stroke.opacity);
 719             }
 720             nr_blit_pixblock_mask_rgba32 (pb, &m, rgba);
 721             pb->empty = FALSE;
 722         } else if (shape->_stroke.paint.type() == NRArenaShape::Paint::SERVER) {
 723             if (shape->stroke_painter) {
 724                 nr_arena_render_paintserver_fill (pb, area, shape->stroke_painter, shape->_stroke.opacity, &m);
 725             }
 726         }
 727
 728         nr_pixblock_release (&m);
 729     }
 730
 731     /* Just compose children into parent buffer */
 732     for (NRArenaItem *child = shape->markers; child != NULL; child = child->next) {
 733         unsigned int ret;
 734         ret = nr_arena_item_invoke_render (child, area, pb, flags);
 735         if (ret & NR_ARENA_ITEM_STATE_INVALID) return ret;
 736     }
 737
 738     return item->state;
 739 }
 740
 741 static guint
 742 nr_arena_shape_clip (NRArenaItem *item, NRRectL *area, NRPixBlock *pb)
 743 {
 744     NRArenaShape *shape = NR_ARENA_SHAPE (item);
 745
 746     if (!shape->curve) return item->state;
 747
 748     if ( shape->delayed_shp ) {
 749         if ( nr_rect_l_test_intersect (area, &item->bbox) ) {
 750             NRGC   tempGC(NULL);
 751             tempGC.transform=shape->ctm;
 752             nr_arena_shape_update_stroke(shape,&tempGC);
 753             nr_arena_shape_update_fill(shape,&tempGC);
 754             /*      NRRect bbox;
 755                     bbox.x0 = bbox.y0 = bbox.x1 = bbox.y1 = 0.0;
 756                     nr_arena_shape_add_bboxes(shape,bbox);
 757                     item->bbox.x0 = (gint32)(bbox.x0 - 1.0F);
 758                     item->bbox.y0 = (gint32)(bbox.y0 - 1.0F);
 759                     item->bbox.x1 = (gint32)(bbox.x1 + 1.0F);
 760                     item->bbox.y1 = (gint32)(bbox.y1 + 1.0F);
 761                     shape->approx_bbox=item->bbox;*/
 762         }
 763     }
 764
 765     if ( shape->fill_shp ) {
 766         NRPixBlock m;
 767
 768         /* fixme: We can OR in one step (Lauris) */
 769         nr_pixblock_setup_fast (&m, NR_PIXBLOCK_MODE_A8, area->x0, area->y0, area->x1, area->y1, TRUE);
 770         nr_pixblock_render_shape_mask_or (m,shape->fill_shp);
 771
 772         for (int y = area->y0; y < area->y1; y++) {
 773             unsigned char *s, *d;
 774             s = NR_PIXBLOCK_PX (&m) + (y - area->y0) * m.rs;
 775             d = NR_PIXBLOCK_PX (pb) + (y - area->y0) * pb->rs;
 776             for (int x = area->x0; x < area->x1; x++) {
 777           *d = NR_A7_NORMALIZED(*s,*d);
 778                 d ++;
 779                 s ++;
 780             }
 781         }
 782         nr_pixblock_release (&m);
 783         pb->empty = FALSE;
 784     }
 785
 786     return item->state;
 787 }
 788
 789 static NRArenaItem *
 790 nr_arena_shape_pick (NRArenaItem *item, NR::Point p, double delta, unsigned int /*sticky*/)
 791 {
 792     NRArenaShape *shape = NR_ARENA_SHAPE (item);
 793
 794     if (!shape->curve) return NULL;
 795     if (!shape->style) return NULL;
 796     if ( shape->delayed_shp ) {
 797         NRRectL  area;
 798         area.x0=(int)floor(p[NR::X]);
 799         area.x1=(int)ceil(p[NR::X]);
 800         area.y0=(int)floor(p[NR::Y]);
 801         area.y1=(int)ceil(p[NR::Y]);
 802         int idelta = (int)ceil(delta) + 1;
 803         // njh: inset rect
 804         area.x0-=idelta;
 805         area.x1+=idelta;
 806         area.y0-=idelta;
 807         area.y1+=idelta;
 808         if ( nr_rect_l_test_intersect (&area, &item->bbox) ) {
 809             NRGC   tempGC(NULL);
 810             tempGC.transform=shape->ctm;
 811             nr_arena_shape_update_stroke(shape,&tempGC);
 812             nr_arena_shape_update_fill(shape,&tempGC);
 813             /*      NRRect bbox;
 814                     bbox.x0 = bbox.y0 = bbox.x1 = bbox.y1 = 0.0;
 815                     nr_arena_shape_add_bboxes(shape,bbox);
 816                     item->bbox.x0 = (gint32)(bbox.x0 - 1.0F);
 817                     item->bbox.y0 = (gint32)(bbox.y0 - 1.0F);
 818                     item->bbox.x1 = (gint32)(bbox.x1 + 1.0F);
 819                     item->bbox.y1 = (gint32)(bbox.y1 + 1.0F);
 820                     shape->approx_bbox=item->bbox;*/
 821         }
 822     }
 823
 824     if (item->state & NR_ARENA_ITEM_STATE_RENDER) {
 825         if (shape->fill_shp && (shape->_fill.paint.type() != NRArenaShape::Paint::NONE)) {
 826             if (shape->fill_shp->PtWinding(p) > 0 ) return item;
 827         }
 828         if (shape->stroke_shp && (shape->_stroke.paint.type() != NRArenaShape::Paint::NONE)) {
 829             if (shape->stroke_shp->PtWinding(p) > 0 ) return item;
 830         }
 831         if (delta > 1e-3) {
 832             if (shape->fill_shp && (shape->_fill.paint.type() != NRArenaShape::Paint::NONE)) {
 833                 if (distanceLessThanOrEqual(shape->fill_shp, p, delta)) return item;
 834             }
 835             if (shape->stroke_shp && (shape->_stroke.paint.type() != NRArenaShape::Paint::NONE)) {
 836                 if (distanceLessThanOrEqual(shape->stroke_shp, p, delta)) return item;
 837             }
 838         }
 839     } else {
 840         NRBPath bp;
 841         bp.path = shape->curve->bpath;
 842         double dist = NR_HUGE;
 843         int wind = 0;
 844         nr_path_matrix_point_bbox_wind_distance(&bp, shape->ctm, p, NULL, &wind, &dist, NR_EPSILON);
 845         if (shape->_fill.paint.type() != NRArenaShape::Paint::NONE) {
 846             if (!shape->style->fill_rule.computed) {
 847                 if (wind != 0) return item;
 848             } else {
 849                 if (wind & 0x1) return item;
 850             }
 851         }
 852         if (shape->_stroke.paint.type() != NRArenaShape::Paint::NONE) {
 853             /* fixme: We do not take stroke width into account here (Lauris) */
 854             if (dist < delta) return item;
 855         }
 856     }
 857
 858     return NULL;
 859 }
 860
 861 /**
 862  *
 863  *  Requests a render of the shape, then if the shape is already a curve it
 864  *  unrefs the old curve; if the new curve is valid it creates a copy of the
 865  *  curve and adds it to the shape.  Finally, it requests an update of the
 866  *  arena for the shape.
 867  */
 868 void nr_arena_shape_set_path(NRArenaShape *shape, SPCurve *curve,bool justTrans)
 869 {
 870     g_return_if_fail (shape != NULL);
 871     g_return_if_fail (NR_IS_ARENA_SHAPE (shape));
 872
 873     if ( justTrans == false ) {
 874         // dirty cached versions
 875         if ( shape->cached_fill ) {
 876             delete shape->cached_fill;
 877             shape->cached_fill=NULL;
 878         }
 879         if ( shape->cached_stroke ) {
 880             delete shape->cached_stroke;
 881             shape->cached_stroke=NULL;
 882         }
 883     }
 884
 885     nr_arena_item_request_render (NR_ARENA_ITEM (shape));
 886
 887     if (shape->curve) {
 888         sp_curve_unref (shape->curve);
 889         shape->curve = NULL;
 890     }
 891
 892     if (curve) {
 893         shape->curve = curve;
 894         sp_curve_ref (curve);
 895     }
 896
 897     nr_arena_item_request_update (NR_ARENA_ITEM (shape), NR_ARENA_ITEM_STATE_ALL, FALSE);
 898 }
 899
 900 void NRArenaShape::setFill(SPPaintServer *server) {
 901     _fill.paint.set(server);
 902     _invalidateCachedFill();
 903 }
 904
 905 void NRArenaShape::setFill(SPColor const &color) {
 906     _fill.paint.set(color);
 907     _invalidateCachedFill();
 908 }
 909
 910 void NRArenaShape::setFillOpacity(double opacity) {
 911     _fill.opacity = opacity;
 912     _invalidateCachedFill();
 913 }
 914
 915 void NRArenaShape::setFillRule(NRArenaShape::FillRule rule) {
 916     _fill.rule = rule;
 917     _invalidateCachedFill();
 918 }
 919
 920 void NRArenaShape::setStroke(SPPaintServer *server) {
 921     _stroke.paint.set(server);
 922     _invalidateCachedStroke();
 923 }
 924
 925 void NRArenaShape::setStroke(SPColor const &color) {
 926     _stroke.paint.set(color);
 927     _invalidateCachedStroke();
 928 }
 929
 930 void NRArenaShape::setStrokeOpacity(double opacity) {
 931     _stroke.opacity = opacity;
 932     _invalidateCachedStroke();
 933 }
 934
 935 void NRArenaShape::setStrokeWidth(double width) {
 936     _stroke.width = width;
 937     _invalidateCachedStroke();
 938 }
 939
 940 void NRArenaShape::setMitreLimit(double limit) {
 941     _stroke.mitre_limit = limit;
 942     _invalidateCachedStroke();
 943 }
 944
 945 void NRArenaShape::setLineCap(NRArenaShape::CapType cap) {
 946     _stroke.cap = cap;
 947     _invalidateCachedStroke();
 948 }
 949
 950 void NRArenaShape::setLineJoin(NRArenaShape::JoinType join) {
 951     _stroke.join = join;
 952     _invalidateCachedStroke();
 953 }
 954
 955 /** nr_arena_shape_set_style
 956  *
 957  * Unrefs any existing style and ref's to the given one, then requests an update of the arena
 958  */
 959 void
 960 nr_arena_shape_set_style (NRArenaShape *shape, SPStyle *style)
 961 {
 962     g_return_if_fail (shape != NULL);
 963     g_return_if_fail (NR_IS_ARENA_SHAPE (shape));
 964
 965     if (style) sp_style_ref (style);
 966     if (shape->style) sp_style_unref (shape->style);
 967     shape->style = style;
 968
 969     switch (style->fill.type) {
 970         case SP_PAINT_TYPE_NONE: {
 971             shape->setFill(NULL);
 972             break;
 973         }
 974         case SP_PAINT_TYPE_COLOR: {
 975             shape->setFill(style->fill.value.color);
 976             break;
 977         }
 978         case SP_PAINT_TYPE_PAINTSERVER: {
 979             shape->setFill(style->fill.value.paint.server);
 980             break;
 981         }
 982         default: {
 983             g_assert_not_reached();
 984         }
 985     }
 986     shape->setFillOpacity(SP_SCALE24_TO_FLOAT(style->fill_opacity.value));
 987     switch (style->fill_rule.computed) {
 988         case SP_WIND_RULE_EVENODD: {
 989             shape->setFillRule(NRArenaShape::EVEN_ODD);
 990             break;
 991         }
 992         case SP_WIND_RULE_NONZERO: {
 993             shape->setFillRule(NRArenaShape::NONZERO);
 994             break;
 995         }
 996         default: {
 997             g_assert_not_reached();
 998         }
 999     }
1000
1001     switch (style->stroke.type) {
1002         case SP_PAINT_TYPE_NONE: {
1003             shape->setStroke(NULL);
1004             break;
1005         }
1006         case SP_PAINT_TYPE_COLOR: {
1007             shape->setStroke(style->stroke.value.color);
1008             break;
1009         }
1010         case SP_PAINT_TYPE_PAINTSERVER: {
1011             shape->setStroke(style->stroke.value.paint.server);
1012             break;
1013         }
1014         default: {
1015             g_assert_not_reached();
1016         }
1017     }
1018     shape->setStrokeWidth(style->stroke_width.computed);
1019     shape->setStrokeOpacity(SP_SCALE24_TO_FLOAT(style->stroke_opacity.value));
1020     switch (style->stroke_linecap.computed) {
1021         case SP_STROKE_LINECAP_ROUND: {
1022             shape->setLineCap(NRArenaShape::ROUND_CAP);
1023             break;
1024         }
1025         case SP_STROKE_LINECAP_SQUARE: {
1026             shape->setLineCap(NRArenaShape::SQUARE_CAP);
1027             break;
1028         }
1029         case SP_STROKE_LINECAP_BUTT: {
1030             shape->setLineCap(NRArenaShape::BUTT_CAP);
1031             break;
1032         }
1033         default: {
1034             g_assert_not_reached();
1035         }
1036     }
1037     switch (style->stroke_linejoin.computed) {
1038         case SP_STROKE_LINEJOIN_ROUND: {
1039             shape->setLineJoin(NRArenaShape::ROUND_JOIN);
1040             break;
1041         }
1042         case SP_STROKE_LINEJOIN_BEVEL: {
1043             shape->setLineJoin(NRArenaShape::BEVEL_JOIN);
1044             break;
1045         }
1046         case SP_STROKE_LINEJOIN_MITER: {
1047             shape->setLineJoin(NRArenaShape::MITRE_JOIN);
1048             break;
1049         }
1050         default: {
1051             g_assert_not_reached();
1052         }
1053     }
1054     shape->setMitreLimit(style->stroke_miterlimit.value);
1055
1056     nr_arena_item_request_update(shape, NR_ARENA_ITEM_STATE_ALL, FALSE);
1057 }
1058
1059 void
1060 nr_arena_shape_set_paintbox (NRArenaShape *shape, const NRRect *pbox)
1061 {
1062     g_return_if_fail (shape != NULL);
1063     g_return_if_fail (NR_IS_ARENA_SHAPE (shape));
1064     g_return_if_fail (pbox != NULL);
1065
1066     if ((pbox->x0 < pbox->x1) && (pbox->y0 < pbox->y1)) {
1067         shape->paintbox = *pbox;
1068     } else {
1069         /* fixme: We kill warning, although not sure what to do here (Lauris) */
1070         shape->paintbox.x0 = shape->paintbox.y0 = 0.0F;
1071         shape->paintbox.x1 = shape->paintbox.y1 = 256.0F;
1072     }
1073
1074     nr_arena_item_request_update(shape, NR_ARENA_ITEM_STATE_ALL, FALSE);
1075 }
1076
1077 void NRArenaShape::setPaintBox(NR::Rect const &pbox)
1078 {
1079     paintbox.x0 = pbox.min()[NR::X];
1080     paintbox.y0 = pbox.min()[NR::Y];
1081     paintbox.x1 = pbox.max()[NR::X];
1082     paintbox.y1 = pbox.max()[NR::Y];
1083
1084     nr_arena_item_request_update(this, NR_ARENA_ITEM_STATE_ALL, FALSE);
1085 }
1086
1087 static void
1088 shape_run_A8_OR (raster_info &dest,void */*data*/,int st,float vst,int en,float ven)
1089 {
1090     if ( st >= en ) return;
1091     if ( vst < 0 ) vst=0;
1092     if ( vst > 1 ) vst=1;
1093     if ( ven < 0 ) ven=0;
1094     if ( ven > 1 ) ven=1;
1095     float   sv=vst;
1096     float   dv=ven-vst;
1097     int     len=en-st;
1098     unsigned char*   d=(unsigned char*)dest.buffer;
1099     d+=(st-dest.startPix);
1100     if ( fabs(dv) < 0.001 ) {
1101         if ( vst > 0.999 ) {
1102             /* Simple copy */
1103             while (len > 0) {
1104                 d[0] = 255;
1105                 d += 1;
1106                 len -= 1;
1107             }
1108         } else {
1109             sv*=256;
1110             unsigned int c0_24=(int)sv;
1111             c0_24&=0xFF;
1112             while (len > 0) {
1113                 unsigned int da;
1114                 /* Draw */
1115                 da = NR_A7(c0_24,d[0]);
1116                 d[0] = NR_PREMUL_SINGLE(da);
1117                 d += 1;
1118                 len -= 1;
1119             }
1120         }
1121     } else {
1122         if ( en <= st+1 ) {
1123             sv=0.5*(vst+ven);
1124             sv*=256;
1125             unsigned int c0_24=(int)sv;
1126             c0_24&=0xFF;
1127             unsigned int da;
1128             /* Draw */
1129             da = NR_A7(c0_24,d[0]);
1130             d[0] = NR_PREMUL_SINGLE(da);
1131         } else {
1132             dv/=len;
1133             sv+=0.5*dv; // correction trapezoidale
1134             sv*=16777216;
1135             dv*=16777216;
1136             int c0_24 = static_cast<int>(CLAMP(sv, 0, 16777216));
1137             int s0_24 = static_cast<int>(dv);
1138             while (len > 0) {
1139                 unsigned int ca, da;
1140                 /* Draw */
1141                 ca = c0_24 >> 16;
1142                 if ( ca > 255 ) ca=255;
1143                 da = NR_A7(ca,d[0]);
1144                 d[0] = NR_PREMUL_SINGLE(da);
1145                 d += 1;
1146                 c0_24 += s0_24;
1147                 c0_24 = CLAMP (c0_24, 0, 16777216);
1148                 len -= 1;
1149             }
1150         }
1151     }
1152 }
1153
1154 void nr_pixblock_render_shape_mask_or (NRPixBlock &m,Shape* theS)
1155 {
1156
1157     theS->CalcBBox();
1158     float  l=theS->leftX,r=theS->rightX,t=theS->topY,b=theS->bottomY;
1159     int    il,ir,it,ib;
1160     il=(int)floor(l);
1161     ir=(int)ceil(r);
1162     it=(int)floor(t);
1163     ib=(int)ceil(b);
1164
1165     if ( il >= m.area.x1 || ir <= m.area.x0 || it >= m.area.y1 || ib <= m.area.y0 ) return;
1166     if ( il < m.area.x0 ) il=m.area.x0;
1167     if ( it < m.area.y0 ) it=m.area.y0;
1168     if ( ir > m.area.x1 ) ir=m.area.x1;
1169     if ( ib > m.area.y1 ) ib=m.area.y1;
1170
1171     // version par FloatLigne
1172     int    curPt;
1173     float  curY;
1174     theS->BeginQuickRaster(curY, curPt);
1175
1176     FloatLigne* theI=new FloatLigne();
1177     IntLigne*   theIL=new IntLigne();
1178
1179     theS->DirectQuickScan(curY,curPt,(float)(it),true,1.0);
1180
1181     char* mdata=(char*)m.data.px;
1182     if ( m.size == NR_PIXBLOCK_SIZE_TINY ) mdata=(char*)m.data.p;
1183     uint32_t* ligStart=((uint32_t*)(mdata+((il-m.area.x0)+m.rs*(it-m.area.y0))));
1184     for (int y=it;y<ib;y++) {
1185         theI->Reset();
1186         theS->QuickScan(curY,curPt,((float)(y+1)),theI,1.0);
1187         theI->Flatten();
1188         theIL->Copy(theI);
1189
1190         raster_info  dest;
1191         dest.startPix=il;
1192         dest.endPix=ir;
1193         dest.sth=il;
1194         dest.stv=y;
1195         dest.buffer=ligStart;
1196         theIL->Raster(dest,NULL,shape_run_A8_OR);
1197         ligStart=((uint32_t*)(((char*)ligStart)+m.rs));
1198     }
1199     theS->EndQuickRaster();
1200     delete theI;
1201     delete theIL;
1202
1203     /*  // version par BitLigne
1204         int    curPt;
1205         float  curY;
1206         theS->BeginRaster(curY,curPt,1.0);
1207
1208         BitLigne*   theI[4];
1209         for (int i=0;i<4;i++) theI[i]=new BitLigne(il,ir);
1210         IntLigne*   theIL=new IntLigne();
1211
1212         theS->Scan(curY,curPt,(float)(it),0.25);
1213
1214         char* mdata=(char*)m.data.px;
1215         if ( m.size == NR_PIXBLOCK_SIZE_TINY ) mdata=(char*)m.data.p;
1216         uint32_t* ligStart=((uint32_t*)(mdata+((il-m.area.x0)+m.rs*(it-m.area.y0))));
1217         for (int y=it;y<ib;y++) {
1218         for (int i=0;i<4;i++) theI[i]->Reset();
1219         if ( y&0x00000003 ) {
1220         theS->Scan(curY,curPt,((float)(y+0.25)),fill_oddEven,theI[0],false,0.25);
1221         theS->Scan(curY,curPt,((float)(y+0.5)),fill_oddEven,theI[1],false,0.25);
1222         theS->Scan(curY,curPt,((float)(y+0.75)),fill_oddEven,theI[2],false,0.25);
1223         theS->Scan(curY,curPt,((float)(y+1.0)),fill_oddEven,theI[3],false,0.25);
1224         } else {
1225         theS->Scan(curY,curPt,((float)(y+0.25)),fill_oddEven,theI[0],true,0.25);
1226         theS->Scan(curY,curPt,((float)(y+0.5)),fill_oddEven,theI[1],true,0.25);
1227         theS->Scan(curY,curPt,((float)(y+0.75)),fill_oddEven,theI[2],true,0.25);
1228         theS->Scan(curY,curPt,((float)(y+1.0)),fill_oddEven,theI[3],true,0.25);
1229         }
1230         theIL->Copy(4,theI);
1231
1232         raster_info  dest;
1233         dest.startPix=il;
1234         dest.endPix=ir;
1235         dest.sth=il;
1236         dest.stv=y;
1237         dest.buffer=ligStart;
1238         theIL->Raster(dest,NULL,shape_run_A8_OR);
1239         ligStart=((uint32_t*)(((char*)ligStart)+m.rs));
1240         }
1241         theS->EndRaster();
1242         for (int i=0;i<4;i++) delete theI[i];
1243         delete theIL;*/
1244
1245 /*  // version par BitLigne directe
1246     int    curPt;
1247     float  curY;
1248     theS->BeginQuickRaster(curY,curPt,1.0);
1249
1250     BitLigne*   theI[4];
1251     for (int i=0;i<4;i++) theI[i]=new BitLigne(il,ir);
1252     IntLigne*   theIL=new IntLigne();
1253
1254     theS->DirectQuickScan(curY,curPt,(float)(it),true,0.25);
1255
1256     char* mdata=(char*)m.data.px;
1257     if ( m.size == NR_PIXBLOCK_SIZE_TINY ) mdata=(char*)m.data.p;
1258     uint32_t* ligStart=((uint32_t*)(mdata+((il-m.area.x0)+m.rs*(it-m.area.y0))));
1259     for (int y=it;y<ib;y++) {
1260     for (int i=0;i<4;i++) theI[i]->Reset();
1261     if ( y&0x00000003 ) {
1262     theS->QuickScan(curY,curPt,((float)(y+0.25)),fill_oddEven,theI[0],false,0.25);
1263     theS->QuickScan(curY,curPt,((float)(y+0.5)),fill_oddEven,theI[1],false,0.25);
1264     theS->QuickScan(curY,curPt,((float)(y+0.75)),fill_oddEven,theI[2],false,0.25);
1265     theS->QuickScan(curY,curPt,((float)(y+1.0)),fill_oddEven,theI[3],false,0.25);
1266     } else {
1267     theS->QuickScan(curY,curPt,((float)(y+0.25)),fill_oddEven,theI[0],true,0.25);
1268     theS->QuickScan(curY,curPt,((float)(y+0.5)),fill_oddEven,theI[1],true,0.25);
1269     theS->QuickScan(curY,curPt,((float)(y+0.75)),fill_oddEven,theI[2],true,0.25);
1270     theS->QuickScan(curY,curPt,((float)(y+1.0)),fill_oddEven,theI[3],true,0.25);
1271     }
1272     theIL->Copy(4,theI);
1273
1274     raster_info  dest;
1275     dest.startPix=il;
1276     dest.endPix=ir;
1277     dest.sth=il;
1278     dest.stv=y;
1279     dest.buffer=ligStart;
1280     theIL->Raster(dest,NULL,shape_run_A8_OR);
1281     ligStart=((uint32_t*)(((char*)ligStart)+m.rs));
1282     }
1283     theS->EndQuickRaster();
1284     for (int i=0;i<4;i++) delete theI[i];
1285     delete theIL;*/
1286 }
1287
1288
1289 /*
1290   Local Variables:
1291   mode:c++
1292   c-file-style:"stroustrup"
1293   c-file-offsets:((innamespace . 0)(inline-open . 0)(case-label . +))
1294   indent-tabs-mode:nil
1295   fill-column:99
1296   End:
1297 */
1298 // vim: filetype=cpp:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:encoding=utf-8:textwidth=99 :