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     float const 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 || shape->fill_shp == NULL) { // we need a fill shape no matter what
 750         if ( nr_rect_l_test_intersect(area, &item->bbox) ) {
 751             NRGC   tempGC(NULL);
 752             tempGC.transform=shape->ctm;
 753             nr_arena_shape_update_fill(shape, &tempGC, true);
 754         }
 755     }
 756
 757     if ( shape->fill_shp ) {
 758         NRPixBlock m;
 759
 760         /* fixme: We can OR in one step (Lauris) */
 761         nr_pixblock_setup_fast(&m, NR_PIXBLOCK_MODE_A8, area->x0, area->y0, area->x1, area->y1, TRUE);
 762         nr_pixblock_render_shape_mask_or(m,shape->fill_shp);
 763
 764         for (int y = area->y0; y < area->y1; y++) {
 765             unsigned char *s, *d;
 766             s = NR_PIXBLOCK_PX(&m) + (y - area->y0) * m.rs;
 767             d = NR_PIXBLOCK_PX(pb) + (y - area->y0) * pb->rs;
 768             for (int x = area->x0; x < area->x1; x++) {
 769                 *d = NR_A7_NORMALIZED(*s,*d);
 770                 d ++;
 771                 s ++;
 772             }
 773         }
 774         nr_pixblock_release(&m);
 775         pb->empty = FALSE;
 776     }
 777
 778     return item->state;
 779 }
 780
 781 static NRArenaItem *
 782 nr_arena_shape_pick(NRArenaItem *item, NR::Point p, double delta, unsigned int /*sticky*/)
 783 {
 784     NRArenaShape *shape = NR_ARENA_SHAPE(item);
 785
 786     if (!shape->curve) return NULL;
 787     if (!shape->style) return NULL;
 788     if ( shape->delayed_shp ) {
 789         NRRectL  area;
 790         area.x0=(int)floor(p[NR::X]);
 791         area.x1=(int)ceil(p[NR::X]);
 792         area.y0=(int)floor(p[NR::Y]);
 793         area.y1=(int)ceil(p[NR::Y]);
 794         int idelta = (int)ceil(delta) + 1;
 795         // njh: inset rect
 796         area.x0-=idelta;
 797         area.x1+=idelta;
 798         area.y0-=idelta;
 799         area.y1+=idelta;
 800         if ( nr_rect_l_test_intersect(&area, &item->bbox) ) {
 801             NRGC   tempGC(NULL);
 802             tempGC.transform=shape->ctm;
 803             nr_arena_shape_update_stroke(shape,&tempGC);
 804             nr_arena_shape_update_fill(shape,&tempGC);
 805             /*      NRRect bbox;
 806                     bbox.x0 = bbox.y0 = bbox.x1 = bbox.y1 = 0.0;
 807                     nr_arena_shape_add_bboxes(shape,bbox);
 808                     item->bbox.x0 = (gint32)(bbox.x0 - 1.0F);
 809                     item->bbox.y0 = (gint32)(bbox.y0 - 1.0F);
 810                     item->bbox.x1 = (gint32)(bbox.x1 + 1.0F);
 811                     item->bbox.y1 = (gint32)(bbox.y1 + 1.0F);
 812                     shape->approx_bbox=item->bbox;*/
 813         }
 814     }
 815
 816     if (item->state & NR_ARENA_ITEM_STATE_RENDER) {
 817         if (shape->fill_shp && (shape->_fill.paint.type() != NRArenaShape::Paint::NONE)) {
 818             if (shape->fill_shp->PtWinding(p) > 0 ) return item;
 819         }
 820         if (shape->stroke_shp && (shape->_stroke.paint.type() != NRArenaShape::Paint::NONE)) {
 821             if (shape->stroke_shp->PtWinding(p) > 0 ) return item;
 822         }
 823         if (delta > 1e-3) {
 824             if (shape->fill_shp && (shape->_fill.paint.type() != NRArenaShape::Paint::NONE)) {
 825                 if (distanceLessThanOrEqual(shape->fill_shp, p, delta)) return item;
 826             }
 827             if (shape->stroke_shp && (shape->_stroke.paint.type() != NRArenaShape::Paint::NONE)) {
 828                 if (distanceLessThanOrEqual(shape->stroke_shp, p, delta)) return item;
 829             }
 830         }
 831     } else {
 832         NRBPath bp;
 833         bp.path = shape->curve->bpath;
 834         double dist = NR_HUGE;
 835         int wind = 0;
 836         nr_path_matrix_point_bbox_wind_distance(&bp, shape->ctm, p, NULL, &wind, &dist, NR_EPSILON);
 837         if (shape->_fill.paint.type() != NRArenaShape::Paint::NONE) {
 838             if (!shape->style->fill_rule.computed) {
 839                 if (wind != 0) return item;
 840             } else {
 841                 if (wind & 0x1) return item;
 842             }
 843         }
 844         if (shape->_stroke.paint.type() != NRArenaShape::Paint::NONE) {
 845             /* fixme: We do not take stroke width into account here (Lauris) */
 846             if (dist < delta) return item;
 847         }
 848     }
 849
 850     return NULL;
 851 }
 852
 853 /**
 854  *
 855  *  Requests a render of the shape, then if the shape is already a curve it
 856  *  unrefs the old curve; if the new curve is valid it creates a copy of the
 857  *  curve and adds it to the shape.  Finally, it requests an update of the
 858  *  arena for the shape.
 859  */
 860 void nr_arena_shape_set_path(NRArenaShape *shape, SPCurve *curve,bool justTrans)
 861 {
 862     g_return_if_fail(shape != NULL);
 863     g_return_if_fail(NR_IS_ARENA_SHAPE(shape));
 864
 865     if ( justTrans == false ) {
 866         // dirty cached versions
 867         if ( shape->cached_fill ) {
 868             delete shape->cached_fill;
 869             shape->cached_fill=NULL;
 870         }
 871         if ( shape->cached_stroke ) {
 872             delete shape->cached_stroke;
 873             shape->cached_stroke=NULL;
 874         }
 875     }
 876
 877     nr_arena_item_request_render(NR_ARENA_ITEM(shape));
 878
 879     if (shape->curve) {
 880         sp_curve_unref(shape->curve);
 881         shape->curve = NULL;
 882     }
 883
 884     if (curve) {
 885         shape->curve = curve;
 886         sp_curve_ref(curve);
 887     }
 888
 889     nr_arena_item_request_update(NR_ARENA_ITEM(shape), NR_ARENA_ITEM_STATE_ALL, FALSE);
 890 }
 891
 892 void NRArenaShape::setFill(SPPaintServer *server) {
 893     _fill.paint.set(server);
 894     _invalidateCachedFill();
 895 }
 896
 897 void NRArenaShape::setFill(SPColor const &color) {
 898     _fill.paint.set(color);
 899     _invalidateCachedFill();
 900 }
 901
 902 void NRArenaShape::setFillOpacity(double opacity) {
 903     _fill.opacity = opacity;
 904     _invalidateCachedFill();
 905 }
 906
 907 void NRArenaShape::setFillRule(NRArenaShape::FillRule rule) {
 908     _fill.rule = rule;
 909     _invalidateCachedFill();
 910 }
 911
 912 void NRArenaShape::setStroke(SPPaintServer *server) {
 913     _stroke.paint.set(server);
 914     _invalidateCachedStroke();
 915 }
 916
 917 void NRArenaShape::setStroke(SPColor const &color) {
 918     _stroke.paint.set(color);
 919     _invalidateCachedStroke();
 920 }
 921
 922 void NRArenaShape::setStrokeOpacity(double opacity) {
 923     _stroke.opacity = opacity;
 924     _invalidateCachedStroke();
 925 }
 926
 927 void NRArenaShape::setStrokeWidth(double width) {
 928     _stroke.width = width;
 929     _invalidateCachedStroke();
 930 }
 931
 932 void NRArenaShape::setMitreLimit(double limit) {
 933     _stroke.mitre_limit = limit;
 934     _invalidateCachedStroke();
 935 }
 936
 937 void NRArenaShape::setLineCap(NRArenaShape::CapType cap) {
 938     _stroke.cap = cap;
 939     _invalidateCachedStroke();
 940 }
 941
 942 void NRArenaShape::setLineJoin(NRArenaShape::JoinType join) {
 943     _stroke.join = join;
 944     _invalidateCachedStroke();
 945 }
 946
 947 /** nr_arena_shape_set_style
 948  *
 949  * Unrefs any existing style and ref's to the given one, then requests an update of the arena
 950  */
 951 void
 952 nr_arena_shape_set_style(NRArenaShape *shape, SPStyle *style)
 953 {
 954     g_return_if_fail(shape != NULL);
 955     g_return_if_fail(NR_IS_ARENA_SHAPE(shape));
 956
 957     if (style) sp_style_ref(style);
 958     if (shape->style) sp_style_unref(shape->style);
 959     shape->style = style;
 960
 961     switch (style->fill.type) {
 962         case SP_PAINT_TYPE_NONE: {
 963             shape->setFill(NULL);
 964             break;
 965         }
 966         case SP_PAINT_TYPE_COLOR: {
 967             shape->setFill(style->fill.value.color);
 968             break;
 969         }
 970         case SP_PAINT_TYPE_PAINTSERVER: {
 971             shape->setFill(style->fill.value.paint.server);
 972             break;
 973         }
 974         default: {
 975             g_assert_not_reached();
 976         }
 977     }
 978     shape->setFillOpacity(SP_SCALE24_TO_FLOAT(style->fill_opacity.value));
 979     switch (style->fill_rule.computed) {
 980         case SP_WIND_RULE_EVENODD: {
 981             shape->setFillRule(NRArenaShape::EVEN_ODD);
 982             break;
 983         }
 984         case SP_WIND_RULE_NONZERO: {
 985             shape->setFillRule(NRArenaShape::NONZERO);
 986             break;
 987         }
 988         default: {
 989             g_assert_not_reached();
 990         }
 991     }
 992
 993     switch (style->stroke.type) {
 994         case SP_PAINT_TYPE_NONE: {
 995             shape->setStroke(NULL);
 996             break;
 997         }
 998         case SP_PAINT_TYPE_COLOR: {
 999             shape->setStroke(style->stroke.value.color);
1000             break;
1001         }
1002         case SP_PAINT_TYPE_PAINTSERVER: {
1003             shape->setStroke(style->stroke.value.paint.server);
1004             break;
1005         }
1006         default: {
1007             g_assert_not_reached();
1008         }
1009     }
1010     shape->setStrokeWidth(style->stroke_width.computed);
1011     shape->setStrokeOpacity(SP_SCALE24_TO_FLOAT(style->stroke_opacity.value));
1012     switch (style->stroke_linecap.computed) {
1013         case SP_STROKE_LINECAP_ROUND: {
1014             shape->setLineCap(NRArenaShape::ROUND_CAP);
1015             break;
1016         }
1017         case SP_STROKE_LINECAP_SQUARE: {
1018             shape->setLineCap(NRArenaShape::SQUARE_CAP);
1019             break;
1020         }
1021         case SP_STROKE_LINECAP_BUTT: {
1022             shape->setLineCap(NRArenaShape::BUTT_CAP);
1023             break;
1024         }
1025         default: {
1026             g_assert_not_reached();
1027         }
1028     }
1029     switch (style->stroke_linejoin.computed) {
1030         case SP_STROKE_LINEJOIN_ROUND: {
1031             shape->setLineJoin(NRArenaShape::ROUND_JOIN);
1032             break;
1033         }
1034         case SP_STROKE_LINEJOIN_BEVEL: {
1035             shape->setLineJoin(NRArenaShape::BEVEL_JOIN);
1036             break;
1037         }
1038         case SP_STROKE_LINEJOIN_MITER: {
1039             shape->setLineJoin(NRArenaShape::MITRE_JOIN);
1040             break;
1041         }
1042         default: {
1043             g_assert_not_reached();
1044         }
1045     }
1046     shape->setMitreLimit(style->stroke_miterlimit.value);
1047
1048     nr_arena_item_request_update(shape, NR_ARENA_ITEM_STATE_ALL, FALSE);
1049 }
1050
1051 void
1052 nr_arena_shape_set_paintbox(NRArenaShape *shape, NRRect const *pbox)
1053 {
1054     g_return_if_fail(shape != NULL);
1055     g_return_if_fail(NR_IS_ARENA_SHAPE(shape));
1056     g_return_if_fail(pbox != NULL);
1057
1058     if ((pbox->x0 < pbox->x1) && (pbox->y0 < pbox->y1)) {
1059         shape->paintbox = *pbox;
1060     } else {
1061         /* fixme: We kill warning, although not sure what to do here (Lauris) */
1062         shape->paintbox.x0 = shape->paintbox.y0 = 0.0F;
1063         shape->paintbox.x1 = shape->paintbox.y1 = 256.0F;
1064     }
1065
1066     nr_arena_item_request_update(shape, NR_ARENA_ITEM_STATE_ALL, FALSE);
1067 }
1068
1069 void NRArenaShape::setPaintBox(NR::Rect const &pbox)
1070 {
1071     paintbox.x0 = pbox.min()[NR::X];
1072     paintbox.y0 = pbox.min()[NR::Y];
1073     paintbox.x1 = pbox.max()[NR::X];
1074     paintbox.y1 = pbox.max()[NR::Y];
1075
1076     nr_arena_item_request_update(this, NR_ARENA_ITEM_STATE_ALL, FALSE);
1077 }
1078
1079 static void
1080 shape_run_A8_OR(raster_info &dest,void */*data*/,int st,float vst,int en,float ven)
1081 {
1082     if ( st >= en ) return;
1083     if ( vst < 0 ) vst=0;
1084     if ( vst > 1 ) vst=1;
1085     if ( ven < 0 ) ven=0;
1086     if ( ven > 1 ) ven=1;
1087     float   sv=vst;
1088     float   dv=ven-vst;
1089     int     len=en-st;
1090     unsigned char*   d=(unsigned char*)dest.buffer;
1091     d+=(st-dest.startPix);
1092     if ( fabs(dv) < 0.001 ) {
1093         if ( vst > 0.999 ) {
1094             /* Simple copy */
1095             while (len > 0) {
1096                 d[0] = 255;
1097                 d += 1;
1098                 len -= 1;
1099             }
1100         } else {
1101             sv*=256;
1102             unsigned int c0_24=(int)sv;
1103             c0_24&=0xFF;
1104             while (len > 0) {
1105                 unsigned int da;
1106                 /* Draw */
1107                 da = NR_A7(c0_24,d[0]);
1108                 d[0] = NR_PREMUL_SINGLE(da);
1109                 d += 1;
1110                 len -= 1;
1111             }
1112         }
1113     } else {
1114         if ( en <= st+1 ) {
1115             sv=0.5*(vst+ven);
1116             sv*=256;
1117             unsigned int c0_24=(int)sv;
1118             c0_24&=0xFF;
1119             unsigned int da;
1120             /* Draw */
1121             da = NR_A7(c0_24,d[0]);
1122             d[0] = NR_PREMUL_SINGLE(da);
1123         } else {
1124             dv/=len;
1125             sv+=0.5*dv; // correction trapezoidale
1126             sv*=16777216;
1127             dv*=16777216;
1128             int c0_24 = static_cast<int>(CLAMP(sv, 0, 16777216));
1129             int s0_24 = static_cast<int>(dv);
1130             while (len > 0) {
1131                 unsigned int ca, da;
1132                 /* Draw */
1133                 ca = c0_24 >> 16;
1134                 if ( ca > 255 ) ca=255;
1135                 da = NR_A7(ca,d[0]);
1136                 d[0] = NR_PREMUL_SINGLE(da);
1137                 d += 1;
1138                 c0_24 += s0_24;
1139                 c0_24 = CLAMP(c0_24, 0, 16777216);
1140                 len -= 1;
1141             }
1142         }
1143     }
1144 }
1145
1146 void nr_pixblock_render_shape_mask_or(NRPixBlock &m,Shape* theS)
1147 {
1148     theS->CalcBBox();
1149     float l = theS->leftX, r = theS->rightX, t = theS->topY, b = theS->bottomY;
1150     int    il,ir,it,ib;
1151     il=(int)floor(l);
1152     ir=(int)ceil(r);
1153     it=(int)floor(t);
1154     ib=(int)ceil(b);
1155
1156     if ( il >= m.area.x1 || ir <= m.area.x0 || it >= m.area.y1 || ib <= m.area.y0 ) return;
1157     if ( il < m.area.x0 ) il=m.area.x0;
1158     if ( it < m.area.y0 ) it=m.area.y0;
1159     if ( ir > m.area.x1 ) ir=m.area.x1;
1160     if ( ib > m.area.y1 ) ib=m.area.y1;
1161
1162     /* This is the FloatLigne version.  See svn (prior to Apr 2006) for versions using BitLigne or direct BitLigne. */
1163     int    curPt;
1164     float  curY;
1165     theS->BeginQuickRaster(curY, curPt);
1166
1167     FloatLigne *theI = new FloatLigne();
1168     IntLigne *theIL = new IntLigne();
1169
1170     theS->DirectQuickScan(curY, curPt, (float) it, true, 1.0);
1171
1172     char *mdata = (char*)m.data.px;
1173     if ( m.size == NR_PIXBLOCK_SIZE_TINY ) mdata=(char*)m.data.p;
1174     uint32_t *ligStart = ((uint32_t*)(mdata + ((il - m.area.x0) + m.rs * (it - m.area.y0))));
1175     for (int y = it; y < ib; y++) {
1176         theI->Reset();
1177         theS->QuickScan(curY, curPt, ((float)(y+1)), theI, 1.0);
1178         theI->Flatten();
1179         theIL->Copy(theI);
1180
1181         raster_info  dest;
1182         dest.startPix=il;
1183         dest.endPix=ir;
1184         dest.sth=il;
1185         dest.stv=y;
1186         dest.buffer=ligStart;
1187         theIL->Raster(dest, NULL, shape_run_A8_OR);
1188         ligStart=((uint32_t*)(((char*)ligStart)+m.rs));
1189     }
1190     theS->EndQuickRaster();
1191     delete theI;
1192     delete theIL;
1193 }
1194
1195
1196 /*
1197   Local Variables:
1198   mode:c++
1199   c-file-style:"stroustrup"
1200   c-file-offsets:((innamespace . 0)(inline-open . 0)(case-label . +))
1201   indent-tabs-mode:nil
1202   fill-column:99
1203   End:
1204 */
1205 // vim: filetype=cpp:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:encoding=utf-8:textwidth=99 :