nr-arena-shape.cpp revision 77eda576f455eeb23c7b92510f38bc60738473ab
#define __NR_ARENA_SHAPE_C__
/*
* RGBA display list system for inkscape
*
* Author:
* Lauris Kaplinski <lauris@kaplinski.com>
*
* Copyright (C) 2001-2002 Lauris Kaplinski
* Copyright (C) 2001 Ximian, Inc.
*
* Released under GNU GPL, read the file 'COPYING' for more information
*/
#include <2geom/svg-path.h>
#include <2geom/svg-path-parser.h>
#include <display/canvas-arena.h>
#include <display/nr-arena.h>
#include <display/nr-arena-shape.h>
#include "display/curve.h"
#include <libnr/nr-pixops.h>
#include <libnr/nr-matrix-ops.h>
#include <libnr/nr-matrix-fns.h>
#include <libnr/nr-blit.h>
#include <libnr/nr-convert2geom.h>
#include <2geom/pathvector.h>
#include <2geom/curves.h>
#include <livarot/Path.h>
#include <livarot/float-line.h>
#include <livarot/int-line.h>
#include <style.h>
#include "prefs-utils.h"
#include "inkscape-cairo.h"
#include "helper/geom.h"
#include "helper/geom-curves.h"
#include "sp-filter.h"
#include "sp-filter-reference.h"
#include "display/nr-filter.h"
#include <typeinfo>
#include <cairo.h>
#include <glib.h>
#include "svg/svg.h"
#include <fenv.h>
//int showRuns=0;
void nr_pixblock_render_shape_mask_or(NRPixBlock &m,Shape* theS);
static void nr_arena_shape_class_init(NRArenaShapeClass *klass);
static void nr_arena_shape_init(NRArenaShape *shape);
static void nr_arena_shape_finalize(NRObject *object);
static NRArenaItem *nr_arena_shape_children(NRArenaItem *item);
static void nr_arena_shape_add_child(NRArenaItem *item, NRArenaItem *child, NRArenaItem *ref);
static void nr_arena_shape_remove_child(NRArenaItem *item, NRArenaItem *child);
static void nr_arena_shape_set_child_position(NRArenaItem *item, NRArenaItem *child, NRArenaItem *ref);
static guint nr_arena_shape_update(NRArenaItem *item, NRRectL *area, NRGC *gc, guint state, guint reset);
static unsigned int nr_arena_shape_render(cairo_t *ct, NRArenaItem *item, NRRectL *area, NRPixBlock *pb, unsigned int flags);
static guint nr_arena_shape_clip(NRArenaItem *item, NRRectL *area, NRPixBlock *pb);
static NRArenaItem *nr_arena_shape_pick(NRArenaItem *item, NR::Point p, double delta, unsigned int sticky);
static NRArenaItemClass *shape_parent_class;
NRType
nr_arena_shape_get_type(void)
{
static NRType type = 0;
if (!type) {
type = nr_object_register_type(NR_TYPE_ARENA_ITEM,
"NRArenaShape",
sizeof(NRArenaShapeClass),
sizeof(NRArenaShape),
(void (*)(NRObjectClass *)) nr_arena_shape_class_init,
(void (*)(NRObject *)) nr_arena_shape_init);
}
return type;
}
static void
nr_arena_shape_class_init(NRArenaShapeClass *klass)
{
NRObjectClass *object_class;
NRArenaItemClass *item_class;
object_class = (NRObjectClass *) klass;
item_class = (NRArenaItemClass *) klass;
shape_parent_class = (NRArenaItemClass *) ((NRObjectClass *) klass)->parent;
object_class->finalize = nr_arena_shape_finalize;
object_class->cpp_ctor = NRObject::invoke_ctor<NRArenaShape>;
item_class->children = nr_arena_shape_children;
item_class->add_child = nr_arena_shape_add_child;
item_class->set_child_position = nr_arena_shape_set_child_position;
item_class->remove_child = nr_arena_shape_remove_child;
item_class->update = nr_arena_shape_update;
item_class->render = nr_arena_shape_render;
item_class->clip = nr_arena_shape_clip;
item_class->pick = nr_arena_shape_pick;
}
/**
* Initializes the arena shape, setting all parameters to null, 0, false,
* or other defaults
*/
static void
nr_arena_shape_init(NRArenaShape *shape)
{
shape->curve = NULL;
shape->style = NULL;
shape->paintbox.x0 = shape->paintbox.y0 = 0.0F;
shape->paintbox.x1 = shape->paintbox.y1 = 256.0F;
shape->ctm.set_identity();
shape->fill_painter = NULL;
shape->stroke_painter = NULL;
shape->cached_fill = NULL;
shape->cached_stroke = NULL;
shape->cached_fpartialy = false;
shape->cached_spartialy = false;
shape->fill_shp = NULL;
shape->stroke_shp = NULL;
shape->delayed_shp = false;
shape->approx_bbox.x0 = shape->approx_bbox.y0 = 0;
shape->approx_bbox.x1 = shape->approx_bbox.y1 = 0;
shape->cached_fctm.set_identity();
shape->cached_sctm.set_identity();
shape->markers = NULL;
shape->last_pick = NULL;
shape->repick_after = 0;
}
static void
nr_arena_shape_finalize(NRObject *object)
{
NRArenaShape *shape = (NRArenaShape *) object;
if (shape->fill_shp) delete shape->fill_shp;
if (shape->stroke_shp) delete shape->stroke_shp;
if (shape->cached_fill) delete shape->cached_fill;
if (shape->cached_stroke) delete shape->cached_stroke;
if (shape->fill_painter) sp_painter_free(shape->fill_painter);
if (shape->stroke_painter) sp_painter_free(shape->stroke_painter);
if (shape->style) sp_style_unref(shape->style);
if (shape->curve) shape->curve->unref();
((NRObjectClass *) shape_parent_class)->finalize(object);
}
/**
* Retrieves the markers from the item
*/
static NRArenaItem *
nr_arena_shape_children(NRArenaItem *item)
{
NRArenaShape *shape = (NRArenaShape *) item;
return shape->markers;
}
/**
* Attaches child to item, and if ref is not NULL, sets it and ref->next as
* the prev and next items. If ref is NULL, then it sets the item's markers
* as the next items.
*/
static void
nr_arena_shape_add_child(NRArenaItem *item, NRArenaItem *child, NRArenaItem *ref)
{
NRArenaShape *shape = (NRArenaShape *) item;
if (!ref) {
shape->markers = nr_arena_item_attach(item, child, NULL, shape->markers);
} else {
ref->next = nr_arena_item_attach(item, child, ref, ref->next);
}
nr_arena_item_request_update(item, NR_ARENA_ITEM_STATE_ALL, FALSE);
}
/**
* Removes child from the shape. If there are no prev items in
* the child, it sets items' markers to the next item in the child.
*/
static void
nr_arena_shape_remove_child(NRArenaItem *item, NRArenaItem *child)
{
NRArenaShape *shape = (NRArenaShape *) item;
if (child->prev) {
nr_arena_item_detach(item, child);
} else {
shape->markers = nr_arena_item_detach(item, child);
}
nr_arena_item_request_update(item, NR_ARENA_ITEM_STATE_ALL, FALSE);
}
/**
* Detaches child from item, and if there are no previous items in child, it
* sets item's markers to the child. It then attaches the child back onto the item.
* If ref is null, it sets the markers to be the next item, otherwise it uses
* the next/prev items in ref.
*/
static void
nr_arena_shape_set_child_position(NRArenaItem *item, NRArenaItem *child, NRArenaItem *ref)
{
NRArenaShape *shape = (NRArenaShape *) item;
if (child->prev) {
nr_arena_item_detach(item, child);
} else {
shape->markers = nr_arena_item_detach(item, child);
}
if (!ref) {
shape->markers = nr_arena_item_attach(item, child, NULL, shape->markers);
} else {
ref->next = nr_arena_item_attach(item, child, ref, ref->next);
}
nr_arena_item_request_render(child);
}
void nr_arena_shape_update_stroke(NRArenaShape *shape, NRGC* gc, NRRectL *area);
void nr_arena_shape_update_fill(NRArenaShape *shape, NRGC *gc, NRRectL *area, bool force_shape = false);
void nr_arena_shape_add_bboxes(NRArenaShape* shape, Geom::Rect &bbox);
/**
* Updates the arena shape 'item' and all of its children, including the markers.
*/
static guint
nr_arena_shape_update(NRArenaItem *item, NRRectL *area, NRGC *gc, guint state, guint reset)
{
Geom::Rect boundingbox;
NRArenaShape *shape = NR_ARENA_SHAPE(item);
unsigned int beststate = NR_ARENA_ITEM_STATE_ALL;
unsigned int newstate;
for (NRArenaItem *child = shape->markers; child != NULL; child = child->next) {
newstate = nr_arena_item_invoke_update(child, area, gc, state, reset);
beststate = beststate & newstate;
}
if (!(state & NR_ARENA_ITEM_STATE_RENDER)) {
/* We do not have to create rendering structures */
shape->ctm = gc->transform;
if (state & NR_ARENA_ITEM_STATE_BBOX) {
if (shape->curve) {
boundingbox = bounds_exact_transformed(shape->curve->get_pathvector(), to_2geom(gc->transform));
item->bbox.x0 = (gint32)(boundingbox[0][0] - 1.0F);
item->bbox.y0 = (gint32)(boundingbox[1][0] - 1.0F);
item->bbox.x1 = (gint32)(boundingbox[0][1] + 1.9999F);
item->bbox.y1 = (gint32)(boundingbox[1][1] + 1.9999F);
}
if (beststate & NR_ARENA_ITEM_STATE_BBOX) {
for (NRArenaItem *child = shape->markers; child != NULL; child = child->next) {
nr_rect_l_union(&item->bbox, &item->bbox, &child->bbox);
}
}
}
return (state | item->state);
}
shape->delayed_shp=true;
shape->ctm = gc->transform;
boundingbox[0][0] = boundingbox[1][0] = NR_HUGE;
boundingbox[0][1] = boundingbox[1][1] = -NR_HUGE;
bool outline = (NR_ARENA_ITEM(shape)->arena->rendermode == Inkscape::RENDERMODE_OUTLINE);
if (shape->curve) {
boundingbox = bounds_exact_transformed(shape->curve->get_pathvector(), to_2geom(gc->transform));
if (shape->_stroke.paint.type() != NRArenaShape::Paint::NONE || outline) {
float width, scale;
scale = NR::expansion(gc->transform);
width = MAX(0.125, shape->_stroke.width * scale);
if ( fabs(shape->_stroke.width * scale) > 0.01 ) { // sinon c'est 0=oon veut pas de bord
boundingbox.expandBy(width);
}
// those pesky miters, now
float miterMax=width*shape->_stroke.mitre_limit;
if ( miterMax > 0.01 ) {
// grunt mode. we should compute the various miters instead (one for each point on the curve)
boundingbox.expandBy(miterMax);
}
}
} else {
}
shape->approx_bbox.x0 = (gint32)(boundingbox[0][0] - 1.0F);
shape->approx_bbox.y0 = (gint32)(boundingbox[1][0] - 1.0F);
shape->approx_bbox.x1 = (gint32)(boundingbox[0][1] + 1.9999F);
shape->approx_bbox.y1 = (gint32)(boundingbox[1][1] + 1.9999F);
if ( area && nr_rect_l_test_intersect_ptr(area, &shape->approx_bbox) ) shape->delayed_shp=false;
/* Release state data */
if (TRUE || !NR::transform_equalp(gc->transform, shape->ctm, NR_EPSILON)) {
/* Concept test */
if (shape->fill_shp) {
delete shape->fill_shp;
shape->fill_shp = NULL;
}
}
if (shape->stroke_shp) {
delete shape->stroke_shp;
shape->stroke_shp = NULL;
}
if (shape->fill_painter) {
sp_painter_free(shape->fill_painter);
shape->fill_painter = NULL;
}
if (shape->stroke_painter) {
sp_painter_free(shape->stroke_painter);
shape->stroke_painter = NULL;
}
if (!shape->curve ||
!shape->style ||
shape->curve->is_empty() ||
(( shape->_fill.paint.type() == NRArenaShape::Paint::NONE ) &&
( shape->_stroke.paint.type() == NRArenaShape::Paint::NONE && !outline) ))
{
item->bbox = shape->approx_bbox;
return NR_ARENA_ITEM_STATE_ALL;
}
/* Build state data */
if ( shape->delayed_shp ) {
item->bbox=shape->approx_bbox;
} else {
nr_arena_shape_update_stroke(shape, gc, area);
nr_arena_shape_update_fill(shape, gc, area);
boundingbox[0][0] = boundingbox[0][1] = boundingbox[1][0] = boundingbox[1][1] = 0.0;
nr_arena_shape_add_bboxes(shape, boundingbox);
shape->approx_bbox.x0 = (gint32)(boundingbox[0][0] - 1.0F);
shape->approx_bbox.y0 = (gint32)(boundingbox[1][0] - 1.0F);
shape->approx_bbox.x1 = (gint32)(boundingbox[0][1] + 1.9999F);
shape->approx_bbox.y1 = (gint32)(boundingbox[1][1] + 1.9999F);
}
if (boundingbox.isEmpty())
return NR_ARENA_ITEM_STATE_ALL;
item->bbox.x0 = (gint32)(boundingbox[0][0] - 1.0F);
item->bbox.y0 = (gint32)(boundingbox[1][0] - 1.0F);
item->bbox.x1 = (gint32)(boundingbox[0][1] + 1.0F);
item->bbox.y1 = (gint32)(boundingbox[1][1] + 1.0F);
nr_arena_request_render_rect(item->arena, &item->bbox);
item->render_opacity = TRUE;
if ( shape->_fill.paint.type() == NRArenaShape::Paint::SERVER ) {
if (gc && gc->parent) {
shape->fill_painter = sp_paint_server_painter_new(shape->_fill.paint.server(),
gc->transform, gc->parent->transform,
&shape->paintbox);
}
item->render_opacity = FALSE;
}
if ( shape->_stroke.paint.type() == NRArenaShape::Paint::SERVER ) {
if (gc && gc->parent) {
shape->stroke_painter = sp_paint_server_painter_new(shape->_stroke.paint.server(),
gc->transform, gc->parent->transform,
&shape->paintbox);
}
item->render_opacity = FALSE;
}
if ( (shape->_fill.paint.type() != NRArenaShape::Paint::NONE &&
shape->_stroke.paint.type() != NRArenaShape::Paint::NONE)
|| (shape->markers)
)
{
// don't merge item opacity with paint opacity if there is a stroke on the fill, or markers on stroke
item->render_opacity = FALSE;
}
if (beststate & NR_ARENA_ITEM_STATE_BBOX) {
for (NRArenaItem *child = shape->markers; child != NULL; child = child->next) {
nr_rect_l_union(&item->bbox, &item->bbox, &child->bbox);
}
}
return NR_ARENA_ITEM_STATE_ALL;
}
int matrix_is_isometry(NR::Matrix p) {
NR::Matrix tp;
// transposition
tp[0]=p[0];
tp[1]=p[2];
tp[2]=p[1];
tp[3]=p[3];
for (int i = 4; i < 6; i++) // shut valgrind up :)
tp[i] = p[i] = 0;
NR::Matrix isom = tp*p; // A^T * A = adjunct?
// Is the adjunct nearly an identity function?
if (isom.is_translation(0.01)) {
// the transformation is an isometry -> no need to recompute
// the uncrossed polygon
if ( p.det() < 0 )
return -1;
else
return 1;
}
return 0;
}
static bool is_inner_area(NRRectL const &outer, NRRectL const &inner) {
return (outer.x0 <= inner.x0 && outer.y0 <= inner.y0 && outer.x1 >= inner.x1 && outer.y1 >= inner.y1);
}
/* returns true if the pathvector has a region that needs fill.
* is for optimizing purposes, so should be fast and can falsely return true.
* CANNOT falsely return false. */
static bool has_inner_area(Geom::PathVector const & pv) {
// return false for the cases where there is surely no region to be filled
if (pv.empty())
return false;
if ( (pv.size() == 1) && (pv.front().size() <= 1) ) {
// vector has only one path with only one segment, see if that's a non-curve segment: that would mean no internal region
if ( is_straight_curve(pv.front().front()) )
{
return false;
}
}
return true; //too costly to see if it has region to be filled, so return true.
}
/** force_shape is used for clipping paths, when we need the shape for clipping even if it's not filled */
void
nr_arena_shape_update_fill(NRArenaShape *shape, NRGC *gc, NRRectL *area, bool force_shape)
{
if ((shape->_fill.paint.type() != NRArenaShape::Paint::NONE || force_shape) &&
// ((shape->curve->get_length() > 2) || (SP_CURVE_BPATH(shape->curve)[1].code == NR_CURVETO)) ) { // <-- this used to be the old code, i think it has to determine that the path has a sort of 'internal region' where fill would occur
has_inner_area(shape->curve->get_pathvector()) ) {
if (TRUE || !shape->fill_shp) {
NR::Matrix cached_to_new = NR::identity();
int isometry = 0;
if ( shape->cached_fill ) {
if (shape->cached_fctm == gc->transform) {
isometry = 2; // identity
} else {
cached_to_new = shape->cached_fctm.inverse() * gc->transform;
isometry = matrix_is_isometry(cached_to_new);
}
if (0 != isometry && !is_inner_area(shape->cached_farea, *area))
isometry = 0;
}
if ( isometry == 0 ) {
if ( shape->cached_fill == NULL ) shape->cached_fill=new Shape;
shape->cached_fill->Reset();
Path* thePath=new Path;
Shape* theShape=new Shape;
{
Geom::Matrix tempMat(to_2geom(gc->transform));
thePath->LoadPathVector(shape->curve->get_pathvector(), tempMat, true);
}
if (is_inner_area(*area, NR_ARENA_ITEM(shape)->bbox)) {
thePath->Convert(1.0);
shape->cached_fpartialy = false;
} else {
thePath->Convert(area, 1.0);
shape->cached_fpartialy = true;
}
thePath->Fill(theShape, 0);
if ( shape->_fill.rule == NRArenaShape::EVEN_ODD ) {
shape->cached_fill->ConvertToShape(theShape, fill_oddEven);
// alternatively, this speeds up rendering of oddeven shapes but disables AA :(
//shape->cached_fill->Copy(theShape);
} else {
shape->cached_fill->ConvertToShape(theShape, fill_nonZero);
}
shape->cached_fctm=gc->transform;
shape->cached_farea = *area;
delete theShape;
delete thePath;
if ( shape->fill_shp == NULL )
shape->fill_shp = new Shape;
shape->fill_shp->Copy(shape->cached_fill);
} else if ( 2 == isometry ) {
if ( shape->fill_shp == NULL ) {
shape->fill_shp = new Shape;
shape->fill_shp->Copy(shape->cached_fill);
}
} else {
if ( shape->fill_shp == NULL )
shape->fill_shp = new Shape;
shape->fill_shp->Reset(shape->cached_fill->numberOfPoints(),
shape->cached_fill->numberOfEdges());
for (int i = 0; i < shape->cached_fill->numberOfPoints(); i++)
shape->fill_shp->AddPoint(shape->cached_fill->getPoint(i).x * cached_to_new);
if ( isometry == 1 ) {
for (int i = 0; i < shape->cached_fill->numberOfEdges(); i++)
shape->fill_shp->AddEdge(shape->cached_fill->getEdge(i).st,
shape->cached_fill->getEdge(i).en);
} else if ( isometry == -1 ) { // need to flip poly.
for (int i = 0; i < shape->cached_fill->numberOfEdges(); i++)
shape->fill_shp->AddEdge(shape->cached_fill->getEdge(i).en,
shape->cached_fill->getEdge(i).st);
}
shape->fill_shp->ForceToPolygon();
shape->fill_shp->needPointsSorting();
shape->fill_shp->needEdgesSorting();
}
shape->delayed_shp |= shape->cached_fpartialy;
}
}
}
void
nr_arena_shape_update_stroke(NRArenaShape *shape,NRGC* gc, NRRectL *area)
{
SPStyle* style = shape->style;
float const scale = NR::expansion(gc->transform);
bool outline = (NR_ARENA_ITEM(shape)->arena->rendermode == Inkscape::RENDERMODE_OUTLINE);
if (outline) {
// cairo does not need the livarot path for rendering
return;
}
// after switching normal stroke rendering to cairo too, optimize this: lower tolerance, disregard dashes
// (since it will only be used for picking, not for rendering)
if (outline ||
((shape->_stroke.paint.type() != NRArenaShape::Paint::NONE) &&
( fabs(shape->_stroke.width * scale) > 0.01 ))) { // sinon c'est 0=oon veut pas de bord
float style_width = MAX(0.125, shape->_stroke.width * scale);
float width;
if (outline) {
width = 0.5; // 1 pixel wide, independent of zoom
} else {
width = style_width;
}
NR::Matrix cached_to_new = NR::identity();
int isometry = 0;
if ( shape->cached_stroke ) {
if (shape->cached_sctm == gc->transform) {
isometry = 2; // identity
} else {
cached_to_new = shape->cached_sctm.inverse() * gc->transform;
isometry = matrix_is_isometry(cached_to_new);
}
if (0 != isometry && !is_inner_area(shape->cached_sarea, *area))
isometry = 0;
if (0 != isometry && width != shape->cached_width) {
// if this happens without setting style, we have just switched to outline or back
isometry = 0;
}
}
if ( isometry == 0 ) {
if ( shape->cached_stroke == NULL ) shape->cached_stroke=new Shape;
shape->cached_stroke->Reset();
Path* thePath = new Path;
Shape* theShape = new Shape;
{
Geom::Matrix tempMat( to_2geom(gc->transform) );
thePath->LoadPathVector(shape->curve->get_pathvector(), tempMat, true);
}
// add some padding to the rendering area, so clipped path does not go into a render area
NRRectL padded_area = *area;
padded_area.x0 -= (NR::ICoord)width;
padded_area.x1 += (NR::ICoord)width;
padded_area.y0 -= (NR::ICoord)width;
padded_area.y1 += (NR::ICoord)width;
if ((style->stroke_dash.n_dash && !outline) || is_inner_area(padded_area, NR_ARENA_ITEM(shape)->bbox)) {
thePath->Convert((outline) ? 4.0 : 1.0);
shape->cached_spartialy = false;
}
else {
thePath->Convert(&padded_area, (outline) ? 4.0 : 1.0);
shape->cached_spartialy = true;
}
if (style->stroke_dash.n_dash && !outline) {
thePath->DashPolylineFromStyle(style, scale, 1.0);
}
ButtType butt=butt_straight;
switch (shape->_stroke.cap) {
case NRArenaShape::BUTT_CAP:
butt = butt_straight;
break;
case NRArenaShape::ROUND_CAP:
butt = butt_round;
break;
case NRArenaShape::SQUARE_CAP:
butt = butt_square;
break;
}
JoinType join=join_straight;
switch (shape->_stroke.join) {
case NRArenaShape::MITRE_JOIN:
join = join_pointy;
break;
case NRArenaShape::ROUND_JOIN:
join = join_round;
break;
case NRArenaShape::BEVEL_JOIN:
join = join_straight;
break;
}
if (outline) {
butt = butt_straight;
join = join_straight;
}
thePath->Stroke(theShape, false, 0.5*width, join, butt,
0.5*width*shape->_stroke.mitre_limit);
if (outline) {
// speeds it up, but uses evenodd for the stroke shape (which does not matter for 1-pixel wide outline)
shape->cached_stroke->Copy(theShape);
} else {
shape->cached_stroke->ConvertToShape(theShape, fill_nonZero);
}
shape->cached_width = width;
shape->cached_sctm=gc->transform;
shape->cached_sarea = *area;
delete thePath;
delete theShape;
if ( shape->stroke_shp == NULL ) shape->stroke_shp=new Shape;
shape->stroke_shp->Copy(shape->cached_stroke);
} else if ( 2 == isometry ) {
if ( shape->stroke_shp == NULL ) {
shape->stroke_shp=new Shape;
shape->stroke_shp->Copy(shape->cached_stroke);
}
} else {
if ( shape->stroke_shp == NULL )
shape->stroke_shp=new Shape;
shape->stroke_shp->Reset(shape->cached_stroke->numberOfPoints(), shape->cached_stroke->numberOfEdges());
for (int i = 0; i < shape->cached_stroke->numberOfPoints(); i++)
shape->stroke_shp->AddPoint(shape->cached_stroke->getPoint(i).x * cached_to_new);
if ( isometry == 1 ) {
for (int i = 0; i < shape->cached_stroke->numberOfEdges(); i++)
shape->stroke_shp->AddEdge(shape->cached_stroke->getEdge(i).st,
shape->cached_stroke->getEdge(i).en);
} else if ( isometry == -1 ) {
for (int i = 0; i < shape->cached_stroke->numberOfEdges(); i++)
shape->stroke_shp->AddEdge(shape->cached_stroke->getEdge(i).en,
shape->cached_stroke->getEdge(i).st);
}
shape->stroke_shp->ForceToPolygon();
shape->stroke_shp->needPointsSorting();
shape->stroke_shp->needEdgesSorting();
}
shape->delayed_shp |= shape->cached_spartialy;
}
}
void
nr_arena_shape_add_bboxes(NRArenaShape* shape, Geom::Rect &bbox)
{
/* TODO: are these two if's mutually exclusive? ( i.e. "shape->stroke_shp <=> !shape->fill_shp" )
* if so, then this can be written much more compact ! */
if ( shape->stroke_shp ) {
Shape *larger = shape->stroke_shp;
larger->CalcBBox();
larger->leftX = floor(larger->leftX);
larger->rightX = ceil(larger->rightX);
larger->topY = floor(larger->topY);
larger->bottomY = ceil(larger->bottomY);
Geom::Rect stroke_bbox( Geom::Interval(larger->leftX, larger->rightX),
Geom::Interval(larger->topY, larger->bottomY) );
bbox.unionWith(stroke_bbox);
}
if ( shape->fill_shp ) {
Shape *larger = shape->fill_shp;
larger->CalcBBox();
larger->leftX = floor(larger->leftX);
larger->rightX = ceil(larger->rightX);
larger->topY = floor(larger->topY);
larger->bottomY = ceil(larger->bottomY);
Geom::Rect fill_bbox( Geom::Interval(larger->leftX, larger->rightX),
Geom::Interval(larger->topY, larger->bottomY) );
bbox.unionWith(fill_bbox);
}
}
// cairo outline rendering:
static unsigned int
cairo_arena_shape_render_outline(cairo_t *ct, NRArenaItem *item, NR::Maybe<NR::Rect> area)
{
NRArenaShape *shape = NR_ARENA_SHAPE(item);
if (!ct)
return item->state;
guint32 rgba = NR_ARENA_ITEM(shape)->arena->outlinecolor;
// FIXME: we use RGBA buffers but cairo writes BGRA (on i386), so we must cheat
// by setting color channels in the "wrong" order
cairo_set_source_rgba(ct, SP_RGBA32_B_F(rgba), SP_RGBA32_G_F(rgba), SP_RGBA32_R_F(rgba), SP_RGBA32_A_F(rgba));
cairo_set_line_width(ct, 0.5);
cairo_set_tolerance(ct, 1.25); // low quality, but good enough for outline mode
cairo_new_path(ct);
feed_pathvector_to_cairo (ct, shape->curve->get_pathvector(), to_2geom(shape->ctm), area, true, 0);
cairo_stroke(ct);
return item->state;
}
// cairo stroke rendering (flat color only so far!):
// works on canvas, but wrongs the colors in nonpremul buffers: icons and png export
// (need to switch them to premul before this can be enabled)
void
cairo_arena_shape_render_stroke(NRArenaItem *item, NRRectL *area, NRPixBlock *pb)
{
NRArenaShape *shape = NR_ARENA_SHAPE(item);
SPStyle const *style = shape->style;
float const scale = NR::expansion(shape->ctm);
if (fabs(shape->_stroke.width * scale) < 0.01)
return;
cairo_t *ct = nr_create_cairo_context (area, pb);
if (!ct)
return;
guint32 rgba;
if ( item->render_opacity ) {
rgba = shape->_stroke.paint.color().toRGBA32( shape->_stroke.opacity *
SP_SCALE24_TO_FLOAT(style->opacity.value) );
} else {
rgba = shape->_stroke.paint.color().toRGBA32( shape->_stroke.opacity );
}
// FIXME: we use RGBA buffers but cairo writes BGRA (on i386), so we must cheat
// by setting color channels in the "wrong" order
cairo_set_source_rgba(ct, SP_RGBA32_B_F(rgba), SP_RGBA32_G_F(rgba), SP_RGBA32_R_F(rgba), SP_RGBA32_A_F(rgba));
float style_width = MAX(0.125, shape->_stroke.width * scale);
cairo_set_line_width(ct, style_width);
switch (shape->_stroke.cap) {
case NRArenaShape::BUTT_CAP:
cairo_set_line_cap(ct, CAIRO_LINE_CAP_BUTT);
break;
case NRArenaShape::ROUND_CAP:
cairo_set_line_cap(ct, CAIRO_LINE_CAP_ROUND);
break;
case NRArenaShape::SQUARE_CAP:
cairo_set_line_cap(ct, CAIRO_LINE_CAP_SQUARE);
break;
}
switch (shape->_stroke.join) {
case NRArenaShape::MITRE_JOIN:
cairo_set_line_join(ct, CAIRO_LINE_JOIN_MITER);
break;
case NRArenaShape::ROUND_JOIN:
cairo_set_line_join(ct, CAIRO_LINE_JOIN_ROUND);
break;
case NRArenaShape::BEVEL_JOIN:
cairo_set_line_join(ct, CAIRO_LINE_JOIN_BEVEL);
break;
}
cairo_set_miter_limit (ct, style->stroke_miterlimit.value);
if (style->stroke_dash.n_dash) {
NRVpathDash dash;
dash.offset = style->stroke_dash.offset * scale;
dash.n_dash = style->stroke_dash.n_dash;
dash.dash = g_new(double, dash.n_dash);
for (int i = 0; i < dash.n_dash; i++) {
dash.dash[i] = style->stroke_dash.dash[i] * scale;
}
cairo_set_dash (ct, dash.dash, dash.n_dash, dash.offset);
g_free(dash.dash);
}
cairo_set_tolerance(ct, 0.1);
cairo_new_path(ct);
feed_pathvector_to_cairo (ct, shape->curve->get_pathvector(), to_2geom(shape->ctm), area->upgrade(), true, style_width);
cairo_stroke(ct);
cairo_surface_t *cst = cairo_get_target(ct);
cairo_destroy (ct);
cairo_surface_finish (cst);
cairo_surface_destroy (cst);
pb->empty = FALSE;
}
/**
* Renders the item. Markers are just composed into the parent buffer.
*/
static unsigned int
nr_arena_shape_render(cairo_t *ct, NRArenaItem *item, NRRectL *area, NRPixBlock *pb, unsigned int flags)
{
NRArenaShape *shape = NR_ARENA_SHAPE(item);
if (!shape->curve) return item->state;
if (!shape->style) return item->state;
bool outline = (NR_ARENA_ITEM(shape)->arena->rendermode == Inkscape::RENDERMODE_OUTLINE);
if (outline) { // cairo outline rendering
pb->empty = FALSE;
unsigned int ret = cairo_arena_shape_render_outline (ct, item, (&pb->area)->upgrade());
if (ret & NR_ARENA_ITEM_STATE_INVALID) return ret;
} else {
if ( shape->delayed_shp ) {
if ( nr_rect_l_test_intersect_ptr(area, &item->bbox) ) {
NRGC tempGC(NULL);
tempGC.transform=shape->ctm;
shape->delayed_shp = false;
nr_arena_shape_update_stroke(shape,&tempGC,&pb->visible_area);
nr_arena_shape_update_fill(shape,&tempGC,&pb->visible_area);
/* NRRect bbox;
bbox.x0 = bbox.y0 = bbox.x1 = bbox.y1 = 0.0;
nr_arena_shape_add_bboxes(shape,bbox);
item->bbox.x0 = (gint32)(bbox.x0 - 1.0F);
item->bbox.y0 = (gint32)(bbox.y0 - 1.0F);
item->bbox.x1 = (gint32)(bbox.x1 + 1.0F);
item->bbox.y1 = (gint32)(bbox.y1 + 1.0F);
shape->approx_bbox=item->bbox;*/
} else {
return item->state;
}
}
SPStyle const *style = shape->style;
if (shape->fill_shp) {
NRPixBlock m;
guint32 rgba;
nr_pixblock_setup_fast(&m, NR_PIXBLOCK_MODE_A8, area->x0, area->y0, area->x1, area->y1, TRUE);
// if memory allocation failed, abort render
if (m.size != NR_PIXBLOCK_SIZE_TINY && m.data.px == NULL) {
nr_pixblock_release (&m);
return (item->state);
}
m.visible_area = pb->visible_area;
nr_pixblock_render_shape_mask_or(m,shape->fill_shp);
m.empty = FALSE;
if (shape->_fill.paint.type() == NRArenaShape::Paint::NONE) {
// do not render fill in any way
} else if (shape->_fill.paint.type() == NRArenaShape::Paint::COLOR) {
if ( item->render_opacity ) {
rgba = shape->_fill.paint.color().toRGBA32( shape->_fill.opacity *
SP_SCALE24_TO_FLOAT(style->opacity.value) );
} else {
rgba = shape->_fill.paint.color().toRGBA32( shape->_fill.opacity );
}
nr_blit_pixblock_mask_rgba32(pb, &m, rgba);
pb->empty = FALSE;
} else if (shape->_fill.paint.type() == NRArenaShape::Paint::SERVER) {
if (shape->fill_painter) {
nr_arena_render_paintserver_fill(pb, area, shape->fill_painter, shape->_fill.opacity, &m);
}
}
nr_pixblock_release(&m);
}
if (shape->stroke_shp && shape->_stroke.paint.type() == NRArenaShape::Paint::COLOR) {
// cairo_arena_shape_render_stroke(item, area, pb);
guint32 rgba;
NRPixBlock m;
nr_pixblock_setup_fast(&m, NR_PIXBLOCK_MODE_A8, area->x0, area->y0, area->x1, area->y1, TRUE);
// if memory allocation failed, abort render
if (m.size != NR_PIXBLOCK_SIZE_TINY && m.data.px == NULL) {
nr_pixblock_release (&m);
return (item->state);
}
m.visible_area = pb->visible_area;
nr_pixblock_render_shape_mask_or(m, shape->stroke_shp);
m.empty = FALSE;
if ( item->render_opacity ) {
rgba = shape->_stroke.paint.color().toRGBA32( shape->_stroke.opacity *
SP_SCALE24_TO_FLOAT(style->opacity.value) );
} else {
rgba = shape->_stroke.paint.color().toRGBA32( shape->_stroke.opacity );
}
nr_blit_pixblock_mask_rgba32(pb, &m, rgba);
pb->empty = FALSE;
nr_pixblock_release(&m);
} else if (shape->stroke_shp && shape->_stroke.paint.type() == NRArenaShape::Paint::SERVER) {
NRPixBlock m;
nr_pixblock_setup_fast(&m, NR_PIXBLOCK_MODE_A8, area->x0, area->y0, area->x1, area->y1, TRUE);
// if memory allocation failed, abort render
if (m.size != NR_PIXBLOCK_SIZE_TINY && m.data.px == NULL) {
nr_pixblock_release (&m);
return (item->state);
}
m.visible_area = pb->visible_area;
nr_pixblock_render_shape_mask_or(m, shape->stroke_shp);
m.empty = FALSE;
if (shape->stroke_painter) {
nr_arena_render_paintserver_fill(pb, area, shape->stroke_painter, shape->_stroke.opacity, &m);
}
nr_pixblock_release(&m);
}
} // non-cairo non-outline branch
/* Render markers into parent buffer */
for (NRArenaItem *child = shape->markers; child != NULL; child = child->next) {
unsigned int ret = nr_arena_item_invoke_render(ct, child, area, pb, flags);
if (ret & NR_ARENA_ITEM_STATE_INVALID) return ret;
}
return item->state;
}
// cairo clipping: this basically works except for the stride-must-be-divisible-by-4 cairo bug;
// reenable this when the bug is fixed and remove the rest of this function
// TODO
#if defined(DEADCODE) && !defined(DEADCODE)
static guint
cairo_arena_shape_clip(NRArenaItem *item, NRRectL *area, NRPixBlock *pb)
{
NRArenaShape *shape = NR_ARENA_SHAPE(item);
if (!shape->curve) return item->state;
cairo_t *ct = nr_create_cairo_context (area, pb);
if (!ct)
return item->state;
cairo_set_source_rgba(ct, 0, 0, 0, 1);
cairo_new_path(ct);
feed_pathvector_to_cairo (ct, shape->curve->get_pathvector(), to_2geom(shape->ctm), (area)->upgrade(), false, 0);
cairo_fill(ct);
cairo_surface_t *cst = cairo_get_target(ct);
cairo_destroy (ct);
cairo_surface_finish (cst);
cairo_surface_destroy (cst);
pb->empty = FALSE;
return item->state;
}
#endif //defined(DEADCODE) && !defined(DEADCODE)
static guint
nr_arena_shape_clip(NRArenaItem *item, NRRectL *area, NRPixBlock *pb)
{
//return cairo_arena_shape_clip(item, area, pb);
NRArenaShape *shape = NR_ARENA_SHAPE(item);
if (!shape->curve) return item->state;
if ( shape->delayed_shp || shape->fill_shp == NULL) { // we need a fill shape no matter what
if ( nr_rect_l_test_intersect_ptr(area, &item->bbox) ) {
NRGC tempGC(NULL);
tempGC.transform=shape->ctm;
shape->delayed_shp = false;
nr_arena_shape_update_fill(shape, &tempGC, &pb->visible_area, true);
} else {
return item->state;
}
}
if ( shape->fill_shp ) {
NRPixBlock m;
/* fixme: We can OR in one step (Lauris) */
nr_pixblock_setup_fast(&m, NR_PIXBLOCK_MODE_A8, area->x0, area->y0, area->x1, area->y1, TRUE);
// if memory allocation failed, abort
if (m.size != NR_PIXBLOCK_SIZE_TINY && m.data.px == NULL) {
nr_pixblock_release (&m);
return (item->state);
}
m.visible_area = pb->visible_area;
nr_pixblock_render_shape_mask_or(m,shape->fill_shp);
for (int y = area->y0; y < area->y1; y++) {
unsigned char *s, *d;
s = NR_PIXBLOCK_PX(&m) + (y - area->y0) * m.rs;
d = NR_PIXBLOCK_PX(pb) + (y - area->y0) * pb->rs;
for (int x = area->x0; x < area->x1; x++) {
*d = NR_COMPOSEA_111(*s, *d);
d ++;
s ++;
}
}
nr_pixblock_release(&m);
pb->empty = FALSE;
}
return item->state;
}
static NRArenaItem *
nr_arena_shape_pick(NRArenaItem *item, NR::Point p, double delta, unsigned int /*sticky*/)
{
NRArenaShape *shape = NR_ARENA_SHAPE(item);
if (shape->repick_after > 0)
shape->repick_after--;
if (shape->repick_after > 0) // we are a slow, huge path. skip this pick, returning what was returned last time
return shape->last_pick;
if (!shape->curve) return NULL;
if (!shape->style) return NULL;
bool outline = (NR_ARENA_ITEM(shape)->arena->rendermode == Inkscape::RENDERMODE_OUTLINE);
if (SP_SCALE24_TO_FLOAT(shape->style->opacity.value) == 0 && !outline)
// fully transparent, no pick unless outline mode
return NULL;
GTimeVal tstart, tfinish;
g_get_current_time (&tstart);
double width;
if (outline) {
width = 0.5;
} else if (shape->_stroke.paint.type() != NRArenaShape::Paint::NONE && shape->_stroke.opacity > 1e-3) {
float const scale = NR::expansion(shape->ctm);
width = MAX(0.125, shape->_stroke.width * scale) / 2;
} else {
width = 0;
}
double dist = NR_HUGE;
int wind = 0;
bool needfill = (shape->_fill.paint.type() != NRArenaShape::Paint::NONE
&& shape->_fill.opacity > 1e-3 && !outline);
if (item->arena->canvasarena) {
Geom::Rect viewbox = to_2geom(item->arena->canvasarena->item.canvas->getViewbox());
viewbox.expandBy (width);
pathv_matrix_point_bbox_wind_distance(shape->curve->get_pathvector(), to_2geom(shape->ctm), to_2geom(p), NULL, needfill? &wind : NULL, &dist, 0.5, &viewbox);
} else {
pathv_matrix_point_bbox_wind_distance(shape->curve->get_pathvector(), to_2geom(shape->ctm), to_2geom(p), NULL, needfill? &wind : NULL, &dist, 0.5, NULL);
}
g_get_current_time (&tfinish);
glong this_pick = (tfinish.tv_sec - tstart.tv_sec) * 1000000 + (tfinish.tv_usec - tstart.tv_usec);
//g_print ("pick time %lu\n", this_pick);
if (this_pick > 10000) { // slow picking, remember to skip several new picks
shape->repick_after = this_pick / 5000;
}
// covered by fill?
if (needfill) {
if (!shape->style->fill_rule.computed) {
if (wind != 0) {
shape->last_pick = item;
return item;
}
} else {
if (wind & 0x1) {
shape->last_pick = item;
return item;
}
}
}
// close to the edge, as defined by strokewidth and delta?
// this ignores dashing (as if the stroke is solid) and always works as if caps are round
if (needfill || width > 0) { // if either fill or stroke visible,
if ((dist - width) < delta) {
shape->last_pick = item;
return item;
}
}
// if not picked on the shape itself, try its markers
for (NRArenaItem *child = shape->markers; child != NULL; child = child->next) {
NRArenaItem *ret = nr_arena_item_invoke_pick(child, p, delta, 0);
if (ret) {
shape->last_pick = item;
return item;
}
}
shape->last_pick = NULL;
return NULL;
}
/**
*
* Requests a render of the shape, then if the shape is already a curve it
* unrefs the old curve; if the new curve is valid it creates a copy of the
* curve and adds it to the shape. Finally, it requests an update of the
* arena for the shape.
*/
void nr_arena_shape_set_path(NRArenaShape *shape, SPCurve *curve,bool justTrans)
{
g_return_if_fail(shape != NULL);
g_return_if_fail(NR_IS_ARENA_SHAPE(shape));
if ( justTrans == false ) {
// dirty cached versions
if ( shape->cached_fill ) {
delete shape->cached_fill;
shape->cached_fill=NULL;
}
if ( shape->cached_stroke ) {
delete shape->cached_stroke;
shape->cached_stroke=NULL;
}
}
nr_arena_item_request_render(NR_ARENA_ITEM(shape));
if (shape->curve) {
shape->curve->unref();
shape->curve = NULL;
}
if (curve) {
shape->curve = curve;
curve->ref();
}
nr_arena_item_request_update(NR_ARENA_ITEM(shape), NR_ARENA_ITEM_STATE_ALL, FALSE);
}
void NRArenaShape::setFill(SPPaintServer *server) {
_fill.paint.set(server);
_invalidateCachedFill();
}
void NRArenaShape::setFill(SPColor const &color) {
_fill.paint.set(color);
_invalidateCachedFill();
}
void NRArenaShape::setFillOpacity(double opacity) {
_fill.opacity = opacity;
_invalidateCachedFill();
}
void NRArenaShape::setFillRule(NRArenaShape::FillRule rule) {
_fill.rule = rule;
_invalidateCachedFill();
}
void NRArenaShape::setStroke(SPPaintServer *server) {
_stroke.paint.set(server);
_invalidateCachedStroke();
}
void NRArenaShape::setStroke(SPColor const &color) {
_stroke.paint.set(color);
_invalidateCachedStroke();
}
void NRArenaShape::setStrokeOpacity(double opacity) {
_stroke.opacity = opacity;
_invalidateCachedStroke();
}
void NRArenaShape::setStrokeWidth(double width) {
_stroke.width = width;
_invalidateCachedStroke();
}
void NRArenaShape::setMitreLimit(double limit) {
_stroke.mitre_limit = limit;
_invalidateCachedStroke();
}
void NRArenaShape::setLineCap(NRArenaShape::CapType cap) {
_stroke.cap = cap;
_invalidateCachedStroke();
}
void NRArenaShape::setLineJoin(NRArenaShape::JoinType join) {
_stroke.join = join;
_invalidateCachedStroke();
}
/** nr_arena_shape_set_style
*
* Unrefs any existing style and ref's to the given one, then requests an update of the arena
*/
void
nr_arena_shape_set_style(NRArenaShape *shape, SPStyle *style)
{
g_return_if_fail(shape != NULL);
g_return_if_fail(NR_IS_ARENA_SHAPE(shape));
if (style) sp_style_ref(style);
if (shape->style) sp_style_unref(shape->style);
shape->style = style;
if ( style->fill.isPaintserver() ) {
shape->setFill(style->getFillPaintServer());
} else if ( style->fill.isColor() ) {
shape->setFill(style->fill.value.color);
} else if ( style->fill.isNone() ) {
shape->setFill(NULL);
} else {
g_assert_not_reached();
}
shape->setFillOpacity(SP_SCALE24_TO_FLOAT(style->fill_opacity.value));
switch (style->fill_rule.computed) {
case SP_WIND_RULE_EVENODD: {
shape->setFillRule(NRArenaShape::EVEN_ODD);
break;
}
case SP_WIND_RULE_NONZERO: {
shape->setFillRule(NRArenaShape::NONZERO);
break;
}
default: {
g_assert_not_reached();
}
}
if ( style->stroke.isPaintserver() ) {
shape->setStroke(style->getStrokePaintServer());
} else if ( style->stroke.isColor() ) {
shape->setStroke(style->stroke.value.color);
} else if ( style->stroke.isNone() ) {
shape->setStroke(NULL);
} else {
g_assert_not_reached();
}
shape->setStrokeWidth(style->stroke_width.computed);
shape->setStrokeOpacity(SP_SCALE24_TO_FLOAT(style->stroke_opacity.value));
switch (style->stroke_linecap.computed) {
case SP_STROKE_LINECAP_ROUND: {
shape->setLineCap(NRArenaShape::ROUND_CAP);
break;
}
case SP_STROKE_LINECAP_SQUARE: {
shape->setLineCap(NRArenaShape::SQUARE_CAP);
break;
}
case SP_STROKE_LINECAP_BUTT: {
shape->setLineCap(NRArenaShape::BUTT_CAP);
break;
}
default: {
g_assert_not_reached();
}
}
switch (style->stroke_linejoin.computed) {
case SP_STROKE_LINEJOIN_ROUND: {
shape->setLineJoin(NRArenaShape::ROUND_JOIN);
break;
}
case SP_STROKE_LINEJOIN_BEVEL: {
shape->setLineJoin(NRArenaShape::BEVEL_JOIN);
break;
}
case SP_STROKE_LINEJOIN_MITER: {
shape->setLineJoin(NRArenaShape::MITRE_JOIN);
break;
}
default: {
g_assert_not_reached();
}
}
shape->setMitreLimit(style->stroke_miterlimit.value);
//if shape has a filter
if (style->filter.set && style->getFilter()) {
if (!shape->filter) {
int primitives = sp_filter_primitive_count(SP_FILTER(style->getFilter()));
shape->filter = new NR::Filter(primitives);
}
sp_filter_build_renderer(SP_FILTER(style->getFilter()), shape->filter);
} else {
//no filter set for this shape
delete shape->filter;
shape->filter = NULL;
}
nr_arena_item_request_update(shape, NR_ARENA_ITEM_STATE_ALL, FALSE);
}
void
nr_arena_shape_set_paintbox(NRArenaShape *shape, NRRect const *pbox)
{
g_return_if_fail(shape != NULL);
g_return_if_fail(NR_IS_ARENA_SHAPE(shape));
g_return_if_fail(pbox != NULL);
if ((pbox->x0 < pbox->x1) && (pbox->y0 < pbox->y1)) {
shape->paintbox = *pbox;
} else {
/* fixme: We kill warning, although not sure what to do here (Lauris) */
shape->paintbox.x0 = shape->paintbox.y0 = 0.0F;
shape->paintbox.x1 = shape->paintbox.y1 = 256.0F;
}
nr_arena_item_request_update(shape, NR_ARENA_ITEM_STATE_ALL, FALSE);
}
void NRArenaShape::setPaintBox(NR::Rect const &pbox)
{
paintbox.x0 = pbox.min()[NR::X];
paintbox.y0 = pbox.min()[NR::Y];
paintbox.x1 = pbox.max()[NR::X];
paintbox.y1 = pbox.max()[NR::Y];
nr_arena_item_request_update(this, NR_ARENA_ITEM_STATE_ALL, FALSE);
}
static void
shape_run_A8_OR(raster_info &dest,void */*data*/,int st,float vst,int en,float ven)
{
if ( st >= en ) return;
if ( vst < 0 ) vst=0;
if ( vst > 1 ) vst=1;
if ( ven < 0 ) ven=0;
if ( ven > 1 ) ven=1;
float sv=vst;
float dv=ven-vst;
int len=en-st;
unsigned char* d=(unsigned char*)dest.buffer;
d+=(st-dest.startPix);
if ( fabs(dv) < 0.001 ) {
if ( vst > 0.999 ) {
/* Simple copy */
while (len > 0) {
d[0] = 255;
d += 1;
len -= 1;
}
} else {
sv*=256;
unsigned int c0_24=(int)sv;
c0_24&=0xFF;
while (len > 0) {
/* Draw */
d[0] = NR_COMPOSEA_111(c0_24,d[0]);
d += 1;
len -= 1;
}
}
} else {
if ( en <= st+1 ) {
sv=0.5*(vst+ven);
sv*=256;
unsigned int c0_24=(int)sv;
c0_24&=0xFF;
/* Draw */
d[0] = NR_COMPOSEA_111(c0_24,d[0]);
} else {
dv/=len;
sv+=0.5*dv; // correction trapezoidale
sv*=16777216;
dv*=16777216;
int c0_24 = static_cast<int>(CLAMP(sv, 0, 16777216));
int s0_24 = static_cast<int>(dv);
while (len > 0) {
unsigned int ca;
/* Draw */
ca = c0_24 >> 16;
if ( ca > 255 ) ca=255;
d[0] = NR_COMPOSEA_111(ca,d[0]);
d += 1;
c0_24 += s0_24;
c0_24 = CLAMP(c0_24, 0, 16777216);
len -= 1;
}
}
}
}
void nr_pixblock_render_shape_mask_or(NRPixBlock &m,Shape* theS)
{
theS->CalcBBox();
float l = theS->leftX, r = theS->rightX, t = theS->topY, b = theS->bottomY;
int il,ir,it,ib;
il=(int)floor(l);
ir=(int)ceil(r);
it=(int)floor(t);
ib=(int)ceil(b);
if ( il >= m.area.x1 || ir <= m.area.x0 || it >= m.area.y1 || ib <= m.area.y0 ) return;
if ( il < m.area.x0 ) il=m.area.x0;
if ( it < m.area.y0 ) it=m.area.y0;
if ( ir > m.area.x1 ) ir=m.area.x1;
if ( ib > m.area.y1 ) ib=m.area.y1;
/* This is the FloatLigne version. See svn (prior to Apr 2006) for versions using BitLigne or direct BitLigne. */
int curPt;
float curY;
theS->BeginQuickRaster(curY, curPt);
FloatLigne *theI = new FloatLigne();
IntLigne *theIL = new IntLigne();
theS->DirectQuickScan(curY, curPt, (float) it, true, 1.0);
char *mdata = (char*)m.data.px;
if ( m.size == NR_PIXBLOCK_SIZE_TINY ) mdata=(char*)m.data.p;
uint32_t *ligStart = ((uint32_t*)(mdata + ((il - m.area.x0) + m.rs * (it - m.area.y0))));
for (int y = it; y < ib; y++) {
theI->Reset();
theS->QuickScan(curY, curPt, ((float)(y+1)), theI, 1.0);
theI->Flatten();
theIL->Copy(theI);
raster_info dest;
dest.startPix=il;
dest.endPix=ir;
dest.sth=il;
dest.stv=y;
dest.buffer=ligStart;
theIL->Raster(dest, NULL, shape_run_A8_OR);
ligStart=((uint32_t*)(((char*)ligStart)+m.rs));
}
theS->EndQuickRaster();
delete theI;
delete theIL;
}
/*
Local Variables:
mode:c++
c-file-style:"stroustrup"
c-file-offsets:((innamespace . 0)(inline-open . 0)(case-label . +))
indent-tabs-mode:nil
fill-column:99
End:
*/
// vim: filetype=cpp:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:encoding=utf-8:textwidth=99 :