Пример #1
0
tiary::XMLNode *tiary::xml_parse (const char *str, size_t len)
{
	xmlDocPtr doc;
	xmlNodePtr iptr;

	libxml2_init ();

	if (!(doc = xmlReadMemory (str, len, 0, 0, 0))) {
		return 0;
	}
	if (!(iptr = xmlDocGetRootElement (doc))) {
		xmlFreeDoc (doc);
		return 0;
	}

	// Successfully parsed. Now we need to construct our own XML tree

	// "(a,b) in stk" means "b's children should be copied as a's children"
	std::stack<std::pair<XMLNodeTree *, xmlNodePtr>, std::vector<std::pair<XMLNodeTree *, xmlNodePtr> > > stk;

	XMLNode *root = shallow_copy (iptr);
	XMLNodeTree *optr = dynamic_cast<XMLNodeTree *>(root);
				// Current working output node
				// Current working input node is iptr
	if (!optr) {
		// Root is a text node. Error.
		delete root;
		return 0;
	}
	XMLNode virtual_node;
	for (;;) {
		// Shallow copy all children of current node
		virtual_node.next = 0;
		XMLNode *last = &virtual_node;
		for (xmlNodePtr child_ptr = iptr->xmlChildrenNode; child_ptr; child_ptr = child_ptr->next) {
			if (XMLNode *newnode = shallow_copy (child_ptr)) {
				last = last->next = newnode;
				if (child_ptr->xmlChildrenNode) {
					stk.push (std::make_pair (static_cast<XMLNodeTree *>(newnode), child_ptr));
				}
			}
		}
		optr->children = virtual_node.next;
		if (stk.empty ()) {
			break;
		}
		optr = stk.top().first;
		iptr = stk.top().second;
		stk.pop ();
	}
	xmlFreeDoc (doc);
	return root;
}
Пример #2
0
  Statement* Cssize::bubble(Media_Block* m)
  {
    Ruleset* parent = static_cast<Ruleset*>(shallow_copy(this->parent()));

    Block* bb = SASS_MEMORY_NEW(ctx.mem, Block, parent->block()->pstate());
    Ruleset* new_rule = SASS_MEMORY_NEW(ctx.mem, Ruleset,
                                        parent->pstate(),
                                        parent->selector(),
                                        bb);
    new_rule->tabs(parent->tabs());

    for (size_t i = 0, L = m->block()->length(); i < L; ++i) {
      *new_rule->block() << (*m->block())[i];
    }

    Block* wrapper_block = SASS_MEMORY_NEW(ctx.mem, Block, m->block()->pstate());
    *wrapper_block << new_rule;
    Media_Block* mm = SASS_MEMORY_NEW(ctx.mem, Media_Block,
                                      m->pstate(),
                                      m->media_queries(),
                                      wrapper_block,
                                      0);

    mm->tabs(m->tabs());

    Bubble* bubble = SASS_MEMORY_NEW(ctx.mem, Bubble, mm->pstate(), mm);

    return bubble;
  }
Пример #3
0
/**
 * Description not yet available.
 * \param
 */
ivector& ivector::operator=(const ivector& t)
 {
   // disconnect ivector  pointer  from old array
   if (::allocated(*this))
   {
     if (v != t.v)
     {
       if (indexmin() != t.indexmin() || indexmax() != t.indexmax())
       {
         cerr << " Array sizes do not match in ivector operator"
                 " =(const ivector&)" << endl;
         ad_exit(1);
       }

       for ( int i=indexmin(); i<=indexmax(); i++)
       {
         elem(i) = t.elem(i);
       }
     }
   }
   else
   {
     shallow_copy(t);
   }
   return (*this);
 }
Пример #4
0
/// Copy constructor
dvar_vector::dvar_vector(const dvar_vector& other)
{
  shallow_copy(other);

#ifdef DEBUG
  cout << " Making copy for dvar_vector with ptr_address\n  "
       << &va << "  pointing at  " << (va+indexmin()) << "\n";
#endif
}
/*! zhematrix=_zhematrix operator */
inline zhematrix& zhematrix::operator=(const _zhematrix& mat)
{
#ifdef  CPPL_VERBOSE
  std::cerr << "# [MARK] zhematrix::operator=(const _zhematrix&)"
            << std::endl;
#endif//CPPL_VERBOSE
  
  shallow_copy(mat);
  return *this;
}
/*! zcovector=_zcovector operator */
inline zcovector& zcovector::operator=(const _zcovector& vec)
{
#ifdef  CPPL_VERBOSE
  std::cerr << "# [MARK] zcovector::operator=(const _zcovector&)"
            << std::endl;
#endif//CPPL_VERBOSE
  
  shallow_copy(vec);
  return *this;
}
Пример #7
0
std::string tiary::xml_make (const XMLNode *root)
{
	/**
	 * I have considered directly generating the XML text, which should
	 * not be difficult to implement and obviously more efficient than
	 * using libxml2.
	 *
	 * However, considering there are many details in XML that I may
	 * easily forget, (say, always remember to replace special characters
	 * with escape sequences starting with "&")
	 * I decide to stick to libxml2.
	 */
	std::string ret;

	if (const XMLNodeTree *iroot = dynamic_cast <const XMLNodeTree *> (root)) {

		libxml2_init ();

		xmlDocPtr doc = xmlNewDoc (BAD_CAST "1.0"); // "1.0" - XML version
		xmlNodePtr oroot = xmlNewNode(0, BAD_CAST (iroot->name.c_str()));
		xmlDocSetRootElement(doc, oroot);

		// "(a,b) in stk" means "a's children should be copied as b's children"
		std::stack<std::pair<const XMLNodeTree *, xmlNodePtr>, std::vector<std::pair<const XMLNodeTree *, xmlNodePtr> > > stk;
		xmlNodePtr optr = oroot;         // Current working output node
		const XMLNodeTree *iptr = iroot; // Current working input node

		for (;;) {
			// Shallow copy all children of current node
			for (XMLNode *child_ptr = iptr->children; child_ptr; child_ptr = child_ptr->next) {
				if (xmlNodePtr nptr = shallow_copy (child_ptr)) {
					xmlAddChild (optr, nptr);
					if (const XMLNodeTree *ip = dynamic_cast <const XMLNodeTree *> (child_ptr)) {
						stk.push (std::make_pair (ip, nptr));
					}
				}
			}
			if (stk.empty ()) {
				break;
			}
			iptr = stk.top().first;
			optr = stk.top().second;
			stk.pop ();
		}

		xmlChar *str;
		int len;
		xmlDocDumpMemoryEnc (doc, &str, &len, "UTF-8");
		xmlFreeDoc (doc);

		ret.assign ((const char*)str, len);
		xmlFree (str);
	}
	return ret;
}
Пример #8
0
void Model::clear()
{
  cleared();

  auto segs = shallow_copy(m_segments);
  m_segments.clear();
  for (auto seg : segs)
    seg->deleteLater();

  auto pts = m_points;
  m_points.clear();
  for (auto pt : pts)
    pt->deleteLater();
}
Пример #9
0
  Statement* Cssize::bubble(At_Root_Block* m)
  {
    Block* bb = SASS_MEMORY_NEW(ctx.mem, Block, this->parent()->pstate());
    Has_Block* new_rule = static_cast<Has_Block*>(shallow_copy(this->parent()));
    new_rule->block(bb);
    new_rule->tabs(this->parent()->tabs());

    for (size_t i = 0, L = m->block()->length(); i < L; ++i) {
      *new_rule->block() << (*m->block())[i];
    }

    Block* wrapper_block = SASS_MEMORY_NEW(ctx.mem, Block, m->block()->pstate());
    *wrapper_block << new_rule;
    At_Root_Block* mm = SASS_MEMORY_NEW(ctx.mem, At_Root_Block,
                                        m->pstate(),
                                        wrapper_block,
                                        m->expression());
    Bubble* bubble = SASS_MEMORY_NEW(ctx.mem, Bubble, mm->pstate(), mm);
    return bubble;
  }
Пример #10
0
  Statement* Cssize::bubble(At_Rule* m)
  {
    Block* bb = SASS_MEMORY_NEW(ctx.mem, Block, this->parent()->pstate());
    Has_Block* new_rule = static_cast<Has_Block*>(shallow_copy(this->parent()));
    new_rule->block(bb);
    new_rule->tabs(this->parent()->tabs());

    size_t L = m->block() ? m->block()->length() : 0;
    for (size_t i = 0; i < L; ++i) {
      *new_rule->block() << (*m->block())[i];
    }

    Block* wrapper_block = SASS_MEMORY_NEW(ctx.mem, Block, m->block() ? m->block()->pstate() : m->pstate());
    *wrapper_block << new_rule;
    At_Rule* mm = SASS_MEMORY_NEW(ctx.mem, At_Rule,
                                  m->pstate(),
                                  m->keyword(),
                                  m->selector(),
                                  wrapper_block);
    if (m->value()) mm->value(m->value());

    Bubble* bubble = SASS_MEMORY_NEW(ctx.mem, Bubble, mm->pstate(), mm);
    return bubble;
  }
Пример #11
0
void SkPicturePlayback::handleOp(SkReader32* reader,
                                 DrawType op,
                                 uint32_t size,
                                 SkCanvas* canvas,
                                 const SkMatrix& initialMatrix) {
    switch (op) {
        case NOOP: {
            SkASSERT(size >= 4);
            reader->skip(size - 4);
        } break;
        case CLIP_PATH: {
            const SkPath& path = fPictureData->getPath(reader);
            uint32_t packed = reader->readInt();
            SkRegion::Op regionOp = ClipParams_unpackRegionOp(packed);
            bool doAA = ClipParams_unpackDoAA(packed);
            size_t offsetToRestore = reader->readInt();
            SkASSERT(!offsetToRestore || offsetToRestore >= reader->offset());
            canvas->clipPath(path, regionOp, doAA);
            if (canvas->isClipEmpty() && offsetToRestore) {
                reader->setOffset(offsetToRestore);
            }
        } break;
        case CLIP_REGION: {
            SkRegion region;
            reader->readRegion(&region);
            uint32_t packed = reader->readInt();
            SkRegion::Op regionOp = ClipParams_unpackRegionOp(packed);
            size_t offsetToRestore = reader->readInt();
            SkASSERT(!offsetToRestore || offsetToRestore >= reader->offset());
            canvas->clipRegion(region, regionOp);
            if (canvas->isClipEmpty() && offsetToRestore) {
                reader->setOffset(offsetToRestore);
            }
        } break;
        case CLIP_RECT: {
            const SkRect& rect = reader->skipT<SkRect>();
            uint32_t packed = reader->readInt();
            SkRegion::Op regionOp = ClipParams_unpackRegionOp(packed);
            bool doAA = ClipParams_unpackDoAA(packed);
            size_t offsetToRestore = reader->readInt();
            SkASSERT(!offsetToRestore || offsetToRestore >= reader->offset());
            canvas->clipRect(rect, regionOp, doAA);
            if (canvas->isClipEmpty() && offsetToRestore) {
                reader->setOffset(offsetToRestore);
            }
        } break;
        case CLIP_RRECT: {
            SkRRect rrect;
            reader->readRRect(&rrect);
            uint32_t packed = reader->readInt();
            SkRegion::Op regionOp = ClipParams_unpackRegionOp(packed);
            bool doAA = ClipParams_unpackDoAA(packed);
            size_t offsetToRestore = reader->readInt();
            SkASSERT(!offsetToRestore || offsetToRestore >= reader->offset());
            canvas->clipRRect(rrect, regionOp, doAA);
            if (canvas->isClipEmpty() && offsetToRestore) {
                reader->setOffset(offsetToRestore);
            }
        } break;
        case PUSH_CULL: break;  // Deprecated, safe to ignore both push and pop.
        case POP_CULL:  break;
        case CONCAT: {
            SkMatrix matrix;
            reader->readMatrix(&matrix);
            canvas->concat(matrix);
            break;
        }
        case DRAW_BITMAP: {
            const SkPaint* paint = fPictureData->getPaint(reader);
            const SkBitmap bitmap = shallow_copy(fPictureData->getBitmap(reader));
            const SkPoint& loc = reader->skipT<SkPoint>();
            canvas->drawBitmap(bitmap, loc.fX, loc.fY, paint);
        } break;
        case DRAW_BITMAP_RECT_TO_RECT: {
            const SkPaint* paint = fPictureData->getPaint(reader);
            const SkBitmap bitmap = shallow_copy(fPictureData->getBitmap(reader));
            const SkRect* src = get_rect_ptr(reader);   // may be null
            const SkRect& dst = reader->skipT<SkRect>();     // required
            SkCanvas::DrawBitmapRectFlags flags;
            flags = (SkCanvas::DrawBitmapRectFlags) reader->readInt();
            canvas->drawBitmapRectToRect(bitmap, src, dst, paint, flags);
        } break;
        case DRAW_BITMAP_MATRIX: {
            const SkPaint* paint = fPictureData->getPaint(reader);
            const SkBitmap bitmap = shallow_copy(fPictureData->getBitmap(reader));
            SkMatrix matrix;
            reader->readMatrix(&matrix);

            SkAutoCanvasRestore acr(canvas, true);
            canvas->concat(matrix);
            canvas->drawBitmap(bitmap, 0, 0, paint);
        } break;
        case DRAW_BITMAP_NINE: {
            const SkPaint* paint = fPictureData->getPaint(reader);
            const SkBitmap bitmap = shallow_copy(fPictureData->getBitmap(reader));
            const SkIRect& src = reader->skipT<SkIRect>();
            const SkRect& dst = reader->skipT<SkRect>();
            canvas->drawBitmapNine(bitmap, src, dst, paint);
        } break;
        case DRAW_CLEAR:
            canvas->clear(reader->readInt());
            break;
        case DRAW_DATA: {
            size_t length = reader->readInt();
            canvas->drawData(reader->skip(length), length);
            // skip handles padding the read out to a multiple of 4
        } break;
        case DRAW_DRRECT: {
            const SkPaint& paint = *fPictureData->getPaint(reader);
            SkRRect outer, inner;
            reader->readRRect(&outer);
            reader->readRRect(&inner);
            canvas->drawDRRect(outer, inner, paint);
        } break;
        case BEGIN_COMMENT_GROUP: {
            const char* desc = reader->readString();
            canvas->beginCommentGroup(desc);
        } break;
        case COMMENT: {
            const char* kywd = reader->readString();
            const char* value = reader->readString();
            canvas->addComment(kywd, value);
        } break;
        case END_COMMENT_GROUP: {
            canvas->endCommentGroup();
        } break;
        case DRAW_OVAL: {
            const SkPaint& paint = *fPictureData->getPaint(reader);
            canvas->drawOval(reader->skipT<SkRect>(), paint);
        } break;
        case DRAW_PAINT:
            canvas->drawPaint(*fPictureData->getPaint(reader));
            break;
        case DRAW_PATCH: {
            const SkPaint& paint = *fPictureData->getPaint(reader);

            const SkPoint* cubics = (const SkPoint*)reader->skip(SkPatchUtils::kNumCtrlPts *
                                                                 sizeof(SkPoint));
            uint32_t flag = reader->readInt();
            const SkColor* colors = NULL;
            if (flag & DRAW_VERTICES_HAS_COLORS) {
                colors = (const SkColor*)reader->skip(SkPatchUtils::kNumCorners * sizeof(SkColor));
            }
            const SkPoint* texCoords = NULL;
            if (flag & DRAW_VERTICES_HAS_TEXS) {
                texCoords = (const SkPoint*)reader->skip(SkPatchUtils::kNumCorners *
                                                         sizeof(SkPoint));
            }
            SkAutoTUnref<SkXfermode> xfer;
            if (flag & DRAW_VERTICES_HAS_XFER) {
                int mode = reader->readInt();
                if (mode < 0 || mode > SkXfermode::kLastMode) {
                    mode = SkXfermode::kModulate_Mode;
                }
                xfer.reset(SkXfermode::Create((SkXfermode::Mode)mode));
            }
            canvas->drawPatch(cubics, colors, texCoords, xfer, paint);
        } break;
        case DRAW_PATH: {
            const SkPaint& paint = *fPictureData->getPaint(reader);
            canvas->drawPath(fPictureData->getPath(reader), paint);
        } break;
        case DRAW_PICTURE:
            canvas->drawPicture(fPictureData->getPicture(reader));
            break;
        case DRAW_PICTURE_MATRIX_PAINT: {
            const SkPaint* paint = fPictureData->getPaint(reader);
            SkMatrix matrix;
            reader->readMatrix(&matrix);
            const SkPicture* pic = fPictureData->getPicture(reader);
            canvas->drawPicture(pic, &matrix, paint);
        } break;
        case DRAW_POINTS: {
            const SkPaint& paint = *fPictureData->getPaint(reader);
            SkCanvas::PointMode mode = (SkCanvas::PointMode)reader->readInt();
            size_t count = reader->readInt();
            const SkPoint* pts = (const SkPoint*)reader->skip(sizeof(SkPoint)* count);
            canvas->drawPoints(mode, count, pts, paint);
        } break;
        case DRAW_POS_TEXT: {
            const SkPaint& paint = *fPictureData->getPaint(reader);
            TextContainer text;
            get_text(reader, &text);
            size_t points = reader->readInt();
            const SkPoint* pos = (const SkPoint*)reader->skip(points * sizeof(SkPoint));
            canvas->drawPosText(text.text(), text.length(), pos, paint);
        } break;
        case DRAW_POS_TEXT_TOP_BOTTOM: {
            const SkPaint& paint = *fPictureData->getPaint(reader);
            TextContainer text;
            get_text(reader, &text);
            size_t points = reader->readInt();
            const SkPoint* pos = (const SkPoint*)reader->skip(points * sizeof(SkPoint));
            const SkScalar top = reader->readScalar();
            const SkScalar bottom = reader->readScalar();
            if (!canvas->quickRejectY(top, bottom)) {
                canvas->drawPosText(text.text(), text.length(), pos, paint);
            }
        } break;
        case DRAW_POS_TEXT_H: {
            const SkPaint& paint = *fPictureData->getPaint(reader);
            TextContainer text;
            get_text(reader, &text);
            size_t xCount = reader->readInt();
            const SkScalar constY = reader->readScalar();
            const SkScalar* xpos = (const SkScalar*)reader->skip(xCount * sizeof(SkScalar));
            canvas->drawPosTextH(text.text(), text.length(), xpos, constY, paint);
        } break;
        case DRAW_POS_TEXT_H_TOP_BOTTOM: {
            const SkPaint& paint = *fPictureData->getPaint(reader);
            TextContainer text;
            get_text(reader, &text);
            size_t xCount = reader->readInt();
            const SkScalar* xpos = (const SkScalar*)reader->skip((3 + xCount) * sizeof(SkScalar));
            const SkScalar top = *xpos++;
            const SkScalar bottom = *xpos++;
            const SkScalar constY = *xpos++;
            if (!canvas->quickRejectY(top, bottom)) {
                canvas->drawPosTextH(text.text(), text.length(), xpos, constY, paint);
            }
        } break;
        case DRAW_RECT: {
            const SkPaint& paint = *fPictureData->getPaint(reader);
            canvas->drawRect(reader->skipT<SkRect>(), paint);
        } break;
        case DRAW_RRECT: {
            const SkPaint& paint = *fPictureData->getPaint(reader);
            SkRRect rrect;
            reader->readRRect(&rrect);
            canvas->drawRRect(rrect, paint);
        } break;
        case DRAW_SPRITE: {
            const SkPaint* paint = fPictureData->getPaint(reader);
            const SkBitmap bitmap = shallow_copy(fPictureData->getBitmap(reader));
            int left = reader->readInt();
            int top = reader->readInt();
            canvas->drawSprite(bitmap, left, top, paint);
        } break;
        case DRAW_TEXT: {
            const SkPaint& paint = *fPictureData->getPaint(reader);
            TextContainer text;
            get_text(reader, &text);
            SkScalar x = reader->readScalar();
            SkScalar y = reader->readScalar();
            canvas->drawText(text.text(), text.length(), x, y, paint);
        } break;
        case DRAW_TEXT_BLOB: {
            const SkPaint& paint = *fPictureData->getPaint(reader);
            const SkTextBlob* blob = fPictureData->getTextBlob(reader);
            SkScalar x = reader->readScalar();
            SkScalar y = reader->readScalar();
            canvas->drawTextBlob(blob, x, y, paint);
        } break;
        case DRAW_TEXT_TOP_BOTTOM: {
            const SkPaint& paint = *fPictureData->getPaint(reader);
            TextContainer text;
            get_text(reader, &text);
            const SkScalar* ptr = (const SkScalar*)reader->skip(4 * sizeof(SkScalar));
            // ptr[0] == x
            // ptr[1] == y
            // ptr[2] == top
            // ptr[3] == bottom
            if (!canvas->quickRejectY(ptr[2], ptr[3])) {
                canvas->drawText(text.text(), text.length(), ptr[0], ptr[1], paint);
            }
        } break;
        case DRAW_TEXT_ON_PATH: {
            const SkPaint& paint = *fPictureData->getPaint(reader);
            TextContainer text;
            get_text(reader, &text);
            const SkPath& path = fPictureData->getPath(reader);
            SkMatrix matrix;
            reader->readMatrix(&matrix);
            canvas->drawTextOnPath(text.text(), text.length(), path, &matrix, paint);
        } break;
        case DRAW_VERTICES: {
            SkAutoTUnref<SkXfermode> xfer;
            const SkPaint& paint = *fPictureData->getPaint(reader);
            DrawVertexFlags flags = (DrawVertexFlags)reader->readInt();
            SkCanvas::VertexMode vmode = (SkCanvas::VertexMode)reader->readInt();
            int vCount = reader->readInt();
            const SkPoint* verts = (const SkPoint*)reader->skip(vCount * sizeof(SkPoint));
            const SkPoint* texs = NULL;
            const SkColor* colors = NULL;
            const uint16_t* indices = NULL;
            int iCount = 0;
            if (flags & DRAW_VERTICES_HAS_TEXS) {
                texs = (const SkPoint*)reader->skip(vCount * sizeof(SkPoint));
            }
            if (flags & DRAW_VERTICES_HAS_COLORS) {
                colors = (const SkColor*)reader->skip(vCount * sizeof(SkColor));
            }
            if (flags & DRAW_VERTICES_HAS_INDICES) {
                iCount = reader->readInt();
                indices = (const uint16_t*)reader->skip(iCount * sizeof(uint16_t));
            }
            if (flags & DRAW_VERTICES_HAS_XFER) {
                int mode = reader->readInt();
                if (mode < 0 || mode > SkXfermode::kLastMode) {
                    mode = SkXfermode::kModulate_Mode;
                }
                xfer.reset(SkXfermode::Create((SkXfermode::Mode)mode));
            }
            canvas->drawVertices(vmode, vCount, verts, texs, colors, xfer, indices, iCount, paint);
        } break;
        case RESTORE:
            canvas->restore();
            break;
        case ROTATE:
            canvas->rotate(reader->readScalar());
            break;
        case SAVE:
            // SKPs with version < 29 also store a SaveFlags param.
            if (size > 4) {
                SkASSERT(8 == size);
                reader->readInt();
            }
            canvas->save();
            break;
        case SAVE_LAYER: {
            const SkRect* boundsPtr = get_rect_ptr(reader);
            const SkPaint* paint = fPictureData->getPaint(reader);
            canvas->saveLayer(boundsPtr, paint, (SkCanvas::SaveFlags) reader->readInt());
        } break;
        case SCALE: {
            SkScalar sx = reader->readScalar();
            SkScalar sy = reader->readScalar();
            canvas->scale(sx, sy);
        } break;
        case SET_MATRIX: {
            SkMatrix matrix;
            reader->readMatrix(&matrix);
            matrix.postConcat(initialMatrix);
            canvas->setMatrix(matrix);
        } break;
        case SKEW: {
            SkScalar sx = reader->readScalar();
            SkScalar sy = reader->readScalar();
            canvas->skew(sx, sy);
        } break;
        case TRANSLATE: {
            SkScalar dx = reader->readScalar();
            SkScalar dy = reader->readScalar();
            canvas->translate(dx, dy);
        } break;
        default:
            SkASSERTF(false, "Unknown draw type: %d", op);
    }
}
Пример #12
0
/*! zgematrix=_zgematrix operator */
inline zgematrix& zgematrix::operator=(const _zgematrix& mat)
{VERBOSE_REPORT;
  shallow_copy(mat);
  return *this;
}
Пример #13
0
struct llist *get_selected_nodes (struct rooted_tree *tree, 
		int selection)
{
	struct llist *result;
	struct list_elem *el;
	struct rnode *node;

	switch (selection) {
		case ALL_NODES:
			result = shallow_copy(tree->nodes_in_order);
			if (NULL == result) {perror(NULL); exit(EXIT_FAILURE);}
			break;
		case ALL_LABELS:
			result = create_llist();
			if (NULL == result) {perror(NULL); exit(EXIT_FAILURE);}
			for (el = tree->nodes_in_order->head; NULL != el;
				el = el->next) {
				node = el->data;
				if (0 != strcmp(node->label, ""))
					if (! append_element(result, node)) {
						perror(NULL);
						exit(EXIT_FAILURE);
					}
			}
			break;
		case ALL_LEAF_LABELS:
			result = create_llist();
			if (NULL == result) {perror(NULL); exit(EXIT_FAILURE);}
			for (el = tree->nodes_in_order->head; NULL != el;
				el = el->next) {
				node = el->data;
				if (is_leaf(node) &&
				   (0 != strcmp(node->label, "")))
					if (! append_element(result, node)) {
						perror(NULL);
						exit(EXIT_FAILURE);
					}
			}
			break;
		case ALL_LEAVES:
			result = create_llist();
			if (NULL == result) {perror(NULL); exit(EXIT_FAILURE);}
			for (el = tree->nodes_in_order->head; NULL != el;
				el = el->next) {
				node = el->data;
				if (is_leaf(node))
					if (! append_element(result, node)) {
						perror(NULL);
						exit(EXIT_FAILURE);
					}
			}
			break;
		case ALL_INNER_NODES:
			result = create_llist();
			if (NULL == result) {perror(NULL); exit(EXIT_FAILURE);}
			for (el = tree->nodes_in_order->head; NULL != el;
				el = el->next) {
				node = el->data;
				if (is_inner_node(node))
					if (! append_element(result, node)) {
						perror(NULL);
						exit(EXIT_FAILURE);
					}
			}
			break;
		default:
			fprintf (stderr, "ERROR: no selection code '%d'\n",
					selection);
			exit (EXIT_FAILURE);
	}

	return result;
}
Пример #14
0
namespace SkRecords {

// FIXME: SkBitmaps are stateful, so we need to copy them to play back in multiple threads.
static SkBitmap shallow_copy(const SkBitmap& bitmap) {
    return bitmap;
}

// NoOps draw nothing.
template <> void Draw::draw(const NoOp&) {}

#define DRAW(T, call) template <> void Draw::draw(const T& r) { fCanvas->call; }
DRAW(Restore, restore());
DRAW(Save, save());
DRAW(SaveLayer, saveLayer(r.bounds, r.paint, r.flags));
DRAW(PopCull, popCull());
DRAW(PushCull, pushCull(r.rect));
DRAW(Clear, clear(r.color));
DRAW(Concat, concat(r.matrix));
DRAW(SetMatrix, setMatrix(SkMatrix::Concat(fInitialCTM, r.matrix)));

DRAW(ClipPath, clipPath(r.path, r.op, r.doAA));
DRAW(ClipRRect, clipRRect(r.rrect, r.op, r.doAA));
DRAW(ClipRect, clipRect(r.rect, r.op, r.doAA));
DRAW(ClipRegion, clipRegion(r.region, r.op));

DRAW(DrawBitmap, drawBitmap(shallow_copy(r.bitmap), r.left, r.top, r.paint));
DRAW(DrawBitmapMatrix, drawBitmapMatrix(shallow_copy(r.bitmap), r.matrix, r.paint));
DRAW(DrawBitmapNine, drawBitmapNine(shallow_copy(r.bitmap), r.center, r.dst, r.paint));
DRAW(DrawBitmapRectToRect,
        drawBitmapRectToRect(shallow_copy(r.bitmap), r.src, r.dst, r.paint, r.flags));
DRAW(DrawDRRect, drawDRRect(r.outer, r.inner, r.paint));
DRAW(DrawOval, drawOval(r.oval, r.paint));
DRAW(DrawPaint, drawPaint(r.paint));
DRAW(DrawPath, drawPath(r.path, r.paint));
DRAW(DrawPatch, drawPatch(r.cubics, r.colors, r.texCoords, r.xmode.get(), r.paint));
DRAW(DrawPicture, drawPicture(r.picture, r.matrix, r.paint));
DRAW(DrawPoints, drawPoints(r.mode, r.count, r.pts, r.paint));
DRAW(DrawPosText, drawPosText(r.text, r.byteLength, r.pos, r.paint));
DRAW(DrawPosTextH, drawPosTextH(r.text, r.byteLength, r.xpos, r.y, r.paint));
DRAW(DrawRRect, drawRRect(r.rrect, r.paint));
DRAW(DrawRect, drawRect(r.rect, r.paint));
DRAW(DrawSprite, drawSprite(shallow_copy(r.bitmap), r.left, r.top, r.paint));
DRAW(DrawText, drawText(r.text, r.byteLength, r.x, r.y, r.paint));
DRAW(DrawTextOnPath, drawTextOnPath(r.text, r.byteLength, r.path, r.matrix, r.paint));
DRAW(DrawVertices, drawVertices(r.vmode, r.vertexCount, r.vertices, r.texs, r.colors,
                                r.xmode.get(), r.indices, r.indexCount, r.paint));
#undef DRAW


// This is an SkRecord visitor that fills an SkBBoxHierarchy.
//
// The interesting part here is how to calculate bounds for ops which don't
// have intrinsic bounds.  What is the bounds of a Save or a Translate?
//
// We answer this by thinking about a particular definition of bounds: if I
// don't execute this op, pixels in this rectangle might draw incorrectly.  So
// the bounds of a Save, a Translate, a Restore, etc. are the union of the
// bounds of Draw* ops that they might have an effect on.  For any given
// Save/Restore block, the bounds of the Save, the Restore, and any other
// non-drawing ("control") ops inside are exactly the union of the bounds of
// the drawing ops inside that block.
//
// To implement this, we keep a stack of active Save blocks.  As we consume ops
// inside the Save/Restore block, drawing ops are unioned with the bounds of
// the block, and control ops are stashed away for later.  When we finish the
// block with a Restore, our bounds are complete, and we go back and fill them
// in for all the control ops we stashed away.
class FillBounds : SkNoncopyable {
public:
    FillBounds(const SkRecord& record, SkBBoxHierarchy* bbh) : fBounds(record.count()) {
        // Calculate bounds for all ops.  This won't go quite in order, so we'll need
        // to store the bounds separately then feed them in to the BBH later in order.
        fCTM.setIdentity();
        for (fCurrentOp = 0; fCurrentOp < record.count(); fCurrentOp++) {
            record.visit<void>(fCurrentOp, *this);
        }

        // If we have any lingering unpaired Saves, simulate restores to make
        // sure all ops in those Save blocks have their bounds calculated.
        while (!fSaveStack.isEmpty()) {
            this->popSaveBlock();
        }

        // Any control ops not part of any Save/Restore block draw everywhere.
        while (!fControlIndices.isEmpty()) {
            this->popControl(SkIRect::MakeLargest());
        }

        // Finally feed all stored bounds into the BBH.  They'll be returned in this order.
        SkASSERT(NULL != bbh);
        for (uintptr_t i = 0; i < record.count(); i++) {
            if (!fBounds[i].isEmpty()) {
                bbh->insert((void*)i, fBounds[i], true/*ok to defer*/);
            }
        }
        bbh->flushDeferredInserts();
    }

    template <typename T> void operator()(const T& r) {
        this->updateCTM(r);
        this->trackBounds(r);
    }

private:
    struct SaveBounds {
        int controlOps;  // Number of control ops in this Save block, including the Save.
        SkIRect bounds;  // Bounds of everything in the block.
    };

    template <typename T> void updateCTM(const T&) { /* most ops don't change the CTM */ }
    void updateCTM(const Restore& r)   { fCTM = r.matrix; }
    void updateCTM(const SetMatrix& r) { fCTM = r.matrix; }
    void updateCTM(const Concat& r)    { fCTM.preConcat(r.matrix); }

    // The bounds of these ops must be calculated when we hit the Restore
    // from the bounds of the ops in the same Save block.
    void trackBounds(const Save&)       { this->pushSaveBlock(); }
    // TODO: bounds of SaveLayer may be more complicated?
    void trackBounds(const SaveLayer&)  { this->pushSaveBlock(); }
    void trackBounds(const Restore&)    { fBounds[fCurrentOp] = this->popSaveBlock(); }

    void trackBounds(const Concat&)     { this->pushControl(); }
    void trackBounds(const SetMatrix&)  { this->pushControl(); }
    void trackBounds(const ClipRect&)   { this->pushControl(); }
    void trackBounds(const ClipRRect&)  { this->pushControl(); }
    void trackBounds(const ClipPath&)   { this->pushControl(); }
    void trackBounds(const ClipRegion&) { this->pushControl(); }

    // For all other ops, we can calculate and store the bounds directly now.
    template <typename T> void trackBounds(const T& op) {
        fBounds[fCurrentOp] = this->bounds(op);
        this->updateSaveBounds(fBounds[fCurrentOp]);
    }

    // TODO: remove this trivially-safe default when done bounding all ops
    template <typename T> SkIRect bounds(const T&) { return SkIRect::MakeLargest(); }

    void pushSaveBlock() {
        // Starting a new Save block.  Push a new entry to represent that.
        SaveBounds sb = { 0, SkIRect::MakeEmpty() };
        fSaveStack.push(sb);
        this->pushControl();
    }

    SkIRect popSaveBlock() {
        // We're done the Save block.  Apply the block's bounds to all control ops inside it.
        SaveBounds sb;
        fSaveStack.pop(&sb);
        while (sb.controlOps --> 0) {
            this->popControl(sb.bounds);
        }

        // This whole Save block may be part another Save block.
        this->updateSaveBounds(sb.bounds);

        // If called from a real Restore (not a phony one for balance), it'll need the bounds.
        return sb.bounds;
    }

    void pushControl() {
        fControlIndices.push(fCurrentOp);
        if (!fSaveStack.isEmpty()) {
            fSaveStack.top().controlOps++;
        }
    }

    void popControl(const SkIRect& bounds) {
        fBounds[fControlIndices.top()] = bounds;
        fControlIndices.pop();
    }

    void updateSaveBounds(const SkIRect& bounds) {
        // If we're in a Save block, expand its bounds to cover these bounds too.
        if (!fSaveStack.isEmpty()) {
            fSaveStack.top().bounds.join(bounds);
        }
    }

    SkIRect bounds(const NoOp&) { return SkIRect::MakeEmpty(); }  // NoOps don't draw anywhere.

    SkAutoTMalloc<SkIRect> fBounds;  // One for each op in the record.
    SkMatrix fCTM;
    unsigned fCurrentOp;
    SkTDArray<SaveBounds> fSaveStack;
    SkTDArray<unsigned>   fControlIndices;
};

}  // namespace SkRecords
Пример #15
0
int test_shallow_copy()
{
	char *test_name = "test_shallow_copy";
	struct llist *list_p, *list_copy_p;
	struct list_elem *elem;
	char label_two[] = {'t', 'w', 'o', '\0'};

	list_p = create_llist();
	append_element(list_p, "one");
	append_element(list_p, label_two); 	/* see below */
	append_element(list_p, "three");
	append_element(list_p, "four");
	append_element(list_p, "five");

	list_copy_p = shallow_copy(list_p);

	/* test list membership and count */
	elem = list_copy_p->head;
	if (strcmp(elem->data, "one") != 0) {
		printf ("%s: expected 'one', got %s.\n", test_name,
				(char *) elem->data);
		return 1;
	}
	elem = elem->next;
	if (strcmp(elem->data, "two") != 0) {
		printf ("%s: expected 'two', got %s.\n", test_name,
				(char *) elem->data);
		return 1;
	}
	elem = elem->next;
	if (strcmp(elem->data, "three") != 0) {
		printf ("%s: expected 'three', got %s.\n", test_name,
				(char *) elem->data);
		return 1;
	}
	elem = elem->next;
	if (strcmp(elem->data, "four") != 0) {
		printf ("%s: expected 'four', got %s.\n", test_name,
				(char *) elem->data);
		return 1;
	}
	elem = elem->next;
	if (strcmp(elem->data, "five") != 0) {
		printf ("%s: expected 'five', got %s.\n", test_name,
				(char *) elem->data);
		return 1;
	}
	if(list_p->count != 5) {
		printf ("%s: count should be 5.\n", test_name);
		return 1;
	}

	/* Check that copy is shallow, i.e., original list members are the
	 * same a s copy members */
	/* String constants cannot be modified (SIGSEGV!), which is why we
	 * used an array for label #2 */

	elem = list_p->head->next; /* should work with any of them */
	label_two[0] = 'z';
	elem = list_copy_p->head->next;
	if (strcmp(elem->data, "zwo") != 0) {
		printf ("%s: expected element in copy to be 'zwo' (got '%s').\n", test_name, (char *) elem->data);
		return 1;
	}

	printf("%s ok.\n", test_name);
	return 0;
}
Пример #16
0
void SkPicturePlayback::handleOp(SkReadBuffer* reader,
                                 DrawType op,
                                 uint32_t size,
                                 SkCanvas* canvas,
                                 const SkMatrix& initialMatrix) {
    switch (op) {
        case NOOP: {
            SkASSERT(size >= 4);
            reader->skip(size - 4);
        } break;
        case CLIP_PATH: {
            const SkPath& path = fPictureData->getPath(reader);
            uint32_t packed = reader->readInt();
            SkRegion::Op regionOp = ClipParams_unpackRegionOp(packed);
            bool doAA = ClipParams_unpackDoAA(packed);
            size_t offsetToRestore = reader->readInt();
            SkASSERT(!offsetToRestore || offsetToRestore >= reader->offset());
            canvas->clipPath(path, regionOp, doAA);
            if (canvas->isClipEmpty() && offsetToRestore) {
                reader->skip(offsetToRestore - reader->offset());
            }
        } break;
        case CLIP_REGION: {
            SkRegion region;
            reader->readRegion(&region);
            uint32_t packed = reader->readInt();
            SkRegion::Op regionOp = ClipParams_unpackRegionOp(packed);
            size_t offsetToRestore = reader->readInt();
            SkASSERT(!offsetToRestore || offsetToRestore >= reader->offset());
            canvas->clipRegion(region, regionOp);
            if (canvas->isClipEmpty() && offsetToRestore) {
                reader->skip(offsetToRestore - reader->offset());
            }
        } break;
        case CLIP_RECT: {
            SkRect rect;
            reader->readRect(&rect);
            uint32_t packed = reader->readInt();
            SkRegion::Op regionOp = ClipParams_unpackRegionOp(packed);
            bool doAA = ClipParams_unpackDoAA(packed);
            size_t offsetToRestore = reader->readInt();
            SkASSERT(!offsetToRestore || offsetToRestore >= reader->offset());
            canvas->clipRect(rect, regionOp, doAA);
            if (canvas->isClipEmpty() && offsetToRestore) {
                reader->skip(offsetToRestore - reader->offset());
            }
        } break;
        case CLIP_RRECT: {
            SkRRect rrect;
            reader->readRRect(&rrect);
            uint32_t packed = reader->readInt();
            SkRegion::Op regionOp = ClipParams_unpackRegionOp(packed);
            bool doAA = ClipParams_unpackDoAA(packed);
            size_t offsetToRestore = reader->readInt();
            SkASSERT(!offsetToRestore || offsetToRestore >= reader->offset());
            canvas->clipRRect(rrect, regionOp, doAA);
            if (canvas->isClipEmpty() && offsetToRestore) {
                reader->skip(offsetToRestore - reader->offset());
            }
        } break;
        case PUSH_CULL: break;  // Deprecated, safe to ignore both push and pop.
        case POP_CULL:  break;
        case CONCAT: {
            SkMatrix matrix;
            reader->readMatrix(&matrix);
            canvas->concat(matrix);
            break;
        }
        case DRAW_ANNOTATION: {
            SkRect rect;
            reader->readRect(&rect);
            SkString key;
            reader->readString(&key);
            canvas->drawAnnotation(rect, key.c_str(), reader->readByteArrayAsData().get());
        } break;
        case DRAW_ATLAS: {
            const SkPaint* paint = fPictureData->getPaint(reader);
            const SkImage* atlas = fPictureData->getImage(reader);
            const uint32_t flags = reader->readUInt();
            const int count = reader->readUInt();
            const SkRSXform* xform = (const SkRSXform*)reader->skip(count * sizeof(SkRSXform));
            const SkRect* tex = (const SkRect*)reader->skip(count * sizeof(SkRect));
            const SkColor* colors = nullptr;
            SkXfermode::Mode mode = SkXfermode::kDst_Mode;
            if (flags & DRAW_ATLAS_HAS_COLORS) {
                colors = (const SkColor*)reader->skip(count * sizeof(SkColor));
                mode = (SkXfermode::Mode)reader->readUInt();
            }
            const SkRect* cull = nullptr;
            if (flags & DRAW_ATLAS_HAS_CULL) {
                cull = (const SkRect*)reader->skip(sizeof(SkRect));
            }
            canvas->drawAtlas(atlas, xform, tex, colors, count, mode, cull, paint);
        } break;
        case DRAW_BITMAP: {
            const SkPaint* paint = fPictureData->getPaint(reader);
            const SkBitmap bitmap = shallow_copy(fPictureData->getBitmap(reader));
            SkPoint loc;
            reader->readPoint(&loc);
            canvas->drawBitmap(bitmap, loc.fX, loc.fY, paint);
        } break;
        case DRAW_BITMAP_RECT: {
            const SkPaint* paint = fPictureData->getPaint(reader);
            const SkBitmap bitmap = shallow_copy(fPictureData->getBitmap(reader));
            SkRect storage;
            const SkRect* src = get_rect_ptr(reader, &storage);   // may be null
            SkRect dst;
            reader->readRect(&dst);     // required
            SkCanvas::SrcRectConstraint constraint = (SkCanvas::SrcRectConstraint)reader->readInt();
            canvas->legacy_drawBitmapRect(bitmap, src, dst, paint, constraint);
        } break;
        case DRAW_BITMAP_MATRIX: {
            const SkPaint* paint = fPictureData->getPaint(reader);
            const SkBitmap bitmap = shallow_copy(fPictureData->getBitmap(reader));
            SkMatrix matrix;
            reader->readMatrix(&matrix);

            SkAutoCanvasRestore acr(canvas, true);
            canvas->concat(matrix);
            canvas->drawBitmap(bitmap, 0, 0, paint);
        } break;
        case DRAW_BITMAP_NINE: {
            const SkPaint* paint = fPictureData->getPaint(reader);
            const SkBitmap bitmap = shallow_copy(fPictureData->getBitmap(reader));
            SkIRect src;
            reader->readIRect(&src);
            SkRect dst;
            reader->readRect(&dst);
            canvas->drawBitmapNine(bitmap, src, dst, paint);
        } break;
        case DRAW_CLEAR:
            canvas->clear(reader->readInt());
            break;
        case DRAW_DATA: {
            // This opcode is now dead, just need to skip it for backwards compatibility
            size_t length = reader->readInt();
            (void)reader->skip(length);
            // skip handles padding the read out to a multiple of 4
        } break;
        case DRAW_DRAWABLE:
            canvas->drawDrawable(fPictureData->getDrawable(reader));
            break;
        case DRAW_DRAWABLE_MATRIX: {
            SkMatrix matrix;
            reader->readMatrix(&matrix);
            SkDrawable* drawable = fPictureData->getDrawable(reader);
            canvas->drawDrawable(drawable, &matrix);
        } break;
        case DRAW_DRRECT: {
            const SkPaint* paint = fPictureData->getPaint(reader);
            SkRRect outer, inner;
            reader->readRRect(&outer);
            reader->readRRect(&inner);
            if (paint) {
                canvas->drawDRRect(outer, inner, *paint);
            }
        } break;
        case BEGIN_COMMENT_GROUP: {
            SkString tmp;
            reader->readString(&tmp);
            // deprecated (M44)
            break;
        }
        case COMMENT: {
            SkString tmp;
            reader->readString(&tmp);
            reader->readString(&tmp);
            // deprecated (M44)
            break;
        }
        case END_COMMENT_GROUP:
            // deprecated (M44)
            break;
        case DRAW_IMAGE: {
            const SkPaint* paint = fPictureData->getPaint(reader);
            const SkImage* image = fPictureData->getImage(reader);
            SkPoint loc;
            reader->readPoint(&loc);
            canvas->drawImage(image, loc.fX, loc.fY, paint);
        } break;
        case DRAW_IMAGE_NINE: {
            const SkPaint* paint = fPictureData->getPaint(reader);
            const SkImage* image = fPictureData->getImage(reader);
            SkIRect center;
            reader->readIRect(&center);
            SkRect dst;
            reader->readRect(&dst);
            canvas->drawImageNine(image, center, dst, paint);
        } break;
        case DRAW_IMAGE_RECT_STRICT:
        case DRAW_IMAGE_RECT: {
            const SkPaint* paint = fPictureData->getPaint(reader);
            const SkImage* image = fPictureData->getImage(reader);
            SkRect storage;
            const SkRect* src = get_rect_ptr(reader, &storage);   // may be null
            SkRect dst;
            reader->readRect(&dst);     // required
            // DRAW_IMAGE_RECT_STRICT assumes this constraint, and doesn't store it
            SkCanvas::SrcRectConstraint constraint = SkCanvas::kStrict_SrcRectConstraint;
            if (DRAW_IMAGE_RECT == op) {
                // newer op-code stores the constraint explicitly
                constraint = (SkCanvas::SrcRectConstraint)reader->readInt();
            }
            canvas->legacy_drawImageRect(image, src, dst, paint, constraint);
        } break;
        case DRAW_OVAL: {
            const SkPaint* paint = fPictureData->getPaint(reader);
            SkRect rect;
            reader->readRect(&rect);
            if (paint) {
                canvas->drawOval(rect, *paint);
            }
        } break;
        case DRAW_PAINT: {
            const SkPaint* paint = fPictureData->getPaint(reader);
            if (paint) {
                canvas->drawPaint(*paint);
            }
        } break;
        case DRAW_PATCH: {
            const SkPaint* paint = fPictureData->getPaint(reader);

            const SkPoint* cubics = (const SkPoint*)reader->skip(SkPatchUtils::kNumCtrlPts *
                                                                 sizeof(SkPoint));
            uint32_t flag = reader->readInt();
            const SkColor* colors = nullptr;
            if (flag & DRAW_VERTICES_HAS_COLORS) {
                colors = (const SkColor*)reader->skip(SkPatchUtils::kNumCorners * sizeof(SkColor));
            }
            const SkPoint* texCoords = nullptr;
            if (flag & DRAW_VERTICES_HAS_TEXS) {
                texCoords = (const SkPoint*)reader->skip(SkPatchUtils::kNumCorners *
                                                         sizeof(SkPoint));
            }
            sk_sp<SkXfermode> xfer;
            if (flag & DRAW_VERTICES_HAS_XFER) {
                int mode = reader->readInt();
                if (mode < 0 || mode > SkXfermode::kLastMode) {
                    mode = SkXfermode::kModulate_Mode;
                }
                xfer = SkXfermode::Make((SkXfermode::Mode)mode);
            }
            if (paint) {
                canvas->drawPatch(cubics, colors, texCoords, std::move(xfer), *paint);
            }
        } break;
        case DRAW_PATH: {
            const SkPaint* paint = fPictureData->getPaint(reader);
            if (paint) {
                canvas->drawPath(fPictureData->getPath(reader), *paint);
            }
        } break;
        case DRAW_PICTURE:
            canvas->drawPicture(fPictureData->getPicture(reader));
            break;
        case DRAW_PICTURE_MATRIX_PAINT: {
            const SkPaint* paint = fPictureData->getPaint(reader);
            SkMatrix matrix;
            reader->readMatrix(&matrix);
            const SkPicture* pic = fPictureData->getPicture(reader);
            canvas->drawPicture(pic, &matrix, paint);
        } break;
        case DRAW_POINTS: {
            const SkPaint* paint = fPictureData->getPaint(reader);
            SkCanvas::PointMode mode = (SkCanvas::PointMode)reader->readInt();
            size_t count = reader->readInt();
            const SkPoint* pts = (const SkPoint*)reader->skip(sizeof(SkPoint)* count);
            if (paint) {
                canvas->drawPoints(mode, count, pts, *paint);
            }
        } break;
        case DRAW_POS_TEXT: {
            const SkPaint* paint = fPictureData->getPaint(reader);
            TextContainer text;
            get_text(reader, &text);
            size_t points = reader->readInt();
            const SkPoint* pos = (const SkPoint*)reader->skip(points * sizeof(SkPoint));
            if (paint) {
                canvas->drawPosText(text.text(), text.length(), pos, *paint);
            }
        } break;
        case DRAW_POS_TEXT_TOP_BOTTOM: {
            const SkPaint* paint = fPictureData->getPaint(reader);
            TextContainer text;
            get_text(reader, &text);
            size_t points = reader->readInt();
            const SkPoint* pos = (const SkPoint*)reader->skip(points * sizeof(SkPoint));
            const SkScalar top = reader->readScalar();
            const SkScalar bottom = reader->readScalar();
            if (!canvas->quickRejectY(top, bottom) && paint) {
                canvas->drawPosText(text.text(), text.length(), pos, *paint);
            }
        } break;
        case DRAW_POS_TEXT_H: {
            const SkPaint* paint = fPictureData->getPaint(reader);
            TextContainer text;
            get_text(reader, &text);
            size_t xCount = reader->readInt();
            const SkScalar constY = reader->readScalar();
            const SkScalar* xpos = (const SkScalar*)reader->skip(xCount * sizeof(SkScalar));
            if (paint) {
                canvas->drawPosTextH(text.text(), text.length(), xpos, constY, *paint);
            }
        } break;
        case DRAW_POS_TEXT_H_TOP_BOTTOM: {
            const SkPaint* paint = fPictureData->getPaint(reader);
            TextContainer text;
            get_text(reader, &text);
            size_t xCount = reader->readInt();
            const SkScalar* xpos = (const SkScalar*)reader->skip((3 + xCount) * sizeof(SkScalar));
            const SkScalar top = *xpos++;
            const SkScalar bottom = *xpos++;
            const SkScalar constY = *xpos++;
            if (!canvas->quickRejectY(top, bottom) && paint) {
                canvas->drawPosTextH(text.text(), text.length(), xpos, constY, *paint);
            }
        } break;
        case DRAW_RECT: {
            const SkPaint* paint = fPictureData->getPaint(reader);
            SkRect rect;
            reader->readRect(&rect);
            if (paint) {
                canvas->drawRect(rect, *paint);
            }
        } break;
        case DRAW_RRECT: {
            const SkPaint* paint = fPictureData->getPaint(reader);
            SkRRect rrect;
            reader->readRRect(&rrect);
            if (paint) {
                canvas->drawRRect(rrect, *paint);
            }
        } break;
        case DRAW_SPRITE: {
            /* const SkPaint* paint = */ fPictureData->getPaint(reader);
            /* const SkBitmap bitmap = */ shallow_copy(fPictureData->getBitmap(reader));
            /* int left = */ reader->readInt();
            /* int top = */ reader->readInt();
            // drawSprite removed dec-2015
        } break;
        case DRAW_TEXT: {
            const SkPaint* paint = fPictureData->getPaint(reader);
            TextContainer text;
            get_text(reader, &text);
            SkScalar x = reader->readScalar();
            SkScalar y = reader->readScalar();
            if (paint) {
                canvas->drawText(text.text(), text.length(), x, y, *paint);
            }
        } break;
        case DRAW_TEXT_BLOB: {
            const SkPaint* paint = fPictureData->getPaint(reader);
            const SkTextBlob* blob = fPictureData->getTextBlob(reader);
            SkScalar x = reader->readScalar();
            SkScalar y = reader->readScalar();
            if (paint) {
                canvas->drawTextBlob(blob, x, y, *paint);
            }
        } break;
        case DRAW_TEXT_TOP_BOTTOM: {
            const SkPaint* paint = fPictureData->getPaint(reader);
            TextContainer text;
            get_text(reader, &text);
            const SkScalar* ptr = (const SkScalar*)reader->skip(4 * sizeof(SkScalar));
            // ptr[0] == x
            // ptr[1] == y
            // ptr[2] == top
            // ptr[3] == bottom
            if (!canvas->quickRejectY(ptr[2], ptr[3]) && paint) {
                canvas->drawText(text.text(), text.length(), ptr[0], ptr[1], *paint);
            }
        } break;
        case DRAW_TEXT_ON_PATH: {
            const SkPaint* paint = fPictureData->getPaint(reader);
            TextContainer text;
            get_text(reader, &text);
            const SkPath& path = fPictureData->getPath(reader);
            SkMatrix matrix;
            reader->readMatrix(&matrix);
            if (paint) {
                canvas->drawTextOnPath(text.text(), text.length(), path, &matrix, *paint);
            }
        } break;
        case DRAW_TEXT_RSXFORM: {
            const SkPaint* paint = fPictureData->getPaint(reader);
            int count = reader->readInt();
            uint32_t flags = reader->read32();
            TextContainer text;
            get_text(reader, &text);
            const SkRSXform* xform = (const SkRSXform*)reader->skip(count * sizeof(SkRSXform));
            const SkRect* cull = nullptr;
            if (flags & DRAW_TEXT_RSXFORM_HAS_CULL) {
                cull = (const SkRect*)reader->skip(sizeof(SkRect));
            }
            canvas->drawTextRSXform(text.text(), text.length(), xform, cull, *paint);
        } break;
        case DRAW_VERTICES: {
            sk_sp<SkXfermode> xfer;
            const SkPaint* paint = fPictureData->getPaint(reader);
            DrawVertexFlags flags = (DrawVertexFlags)reader->readInt();
            SkCanvas::VertexMode vmode = (SkCanvas::VertexMode)reader->readInt();
            int vCount = reader->readInt();
            const SkPoint* verts = (const SkPoint*)reader->skip(vCount * sizeof(SkPoint));
            const SkPoint* texs = nullptr;
            const SkColor* colors = nullptr;
            const uint16_t* indices = nullptr;
            int iCount = 0;
            if (flags & DRAW_VERTICES_HAS_TEXS) {
                texs = (const SkPoint*)reader->skip(vCount * sizeof(SkPoint));
            }
            if (flags & DRAW_VERTICES_HAS_COLORS) {
                colors = (const SkColor*)reader->skip(vCount * sizeof(SkColor));
            }
            if (flags & DRAW_VERTICES_HAS_INDICES) {
                iCount = reader->readInt();
                indices = (const uint16_t*)reader->skip(iCount * sizeof(uint16_t));
            }
            if (flags & DRAW_VERTICES_HAS_XFER) {
                int mode = reader->readInt();
                if (mode < 0 || mode > SkXfermode::kLastMode) {
                    mode = SkXfermode::kModulate_Mode;
                }
                xfer = SkXfermode::Make((SkXfermode::Mode)mode);
            }
            if (paint) {
                canvas->drawVertices(vmode, vCount, verts, texs, colors,
                                     xfer, indices, iCount, *paint);
            }
        } break;
        case RESTORE:
            canvas->restore();
            break;
        case ROTATE:
            canvas->rotate(reader->readScalar());
            break;
        case SAVE:
            // SKPs with version < 29 also store a SaveFlags param.
            if (size > 4) {
                if (reader->validate(8 == size)) {
                    reader->readInt();
                }
            }
            canvas->save();
            break;
        case SAVE_LAYER_SAVEFLAGS_DEPRECATED: {
            SkRect storage;
            const SkRect* boundsPtr = get_rect_ptr(reader, &storage);
            const SkPaint* paint = fPictureData->getPaint(reader);
            auto flags = SkCanvas::LegacySaveFlagsToSaveLayerFlags(reader->readInt());
            canvas->saveLayer(SkCanvas::SaveLayerRec(boundsPtr, paint, flags));
        } break;
        case SAVE_LAYER_SAVELAYERFLAGS_DEPRECATED_JAN_2016: {
            SkRect storage;
            const SkRect* boundsPtr = get_rect_ptr(reader, &storage);
            const SkPaint* paint = fPictureData->getPaint(reader);
            canvas->saveLayer(SkCanvas::SaveLayerRec(boundsPtr, paint, reader->readInt()));
        } break;
        case SAVE_LAYER_SAVELAYERREC: {
            SkCanvas::SaveLayerRec rec(nullptr, nullptr, nullptr, 0);
            const uint32_t flatFlags = reader->readInt();
            SkRect bounds;
            if (flatFlags & SAVELAYERREC_HAS_BOUNDS) {
                reader->readRect(&bounds);
                rec.fBounds = &bounds;
            }
            if (flatFlags & SAVELAYERREC_HAS_PAINT) {
                rec.fPaint = fPictureData->getPaint(reader);
            }
            if (flatFlags & SAVELAYERREC_HAS_BACKDROP) {
                const SkPaint* paint = fPictureData->getPaint(reader);
                rec.fBackdrop = paint->getImageFilter();
            }
            if (flatFlags & SAVELAYERREC_HAS_FLAGS) {
                rec.fSaveLayerFlags = reader->readInt();
            }
            canvas->saveLayer(rec);
        } break;
        case SCALE: {
            SkScalar sx = reader->readScalar();
            SkScalar sy = reader->readScalar();
            canvas->scale(sx, sy);
        } break;
        case SET_MATRIX: {
            SkMatrix matrix;
            reader->readMatrix(&matrix);
            matrix.postConcat(initialMatrix);
            canvas->setMatrix(matrix);
        } break;
        case SKEW: {
            SkScalar sx = reader->readScalar();
            SkScalar sy = reader->readScalar();
            canvas->skew(sx, sy);
        } break;
        case TRANSLATE: {
            SkScalar dx = reader->readScalar();
            SkScalar dy = reader->readScalar();
            canvas->translate(dx, dy);
        } break;
        default:
            SkASSERTF(false, "Unknown draw type: %d", op);
    }
}
Пример #17
0
namespace SkRecords {

// FIXME: SkBitmaps are stateful, so we need to copy them to play back in multiple threads.
static SkBitmap shallow_copy(const SkBitmap& bitmap) {
    return bitmap;
}

// NoOps draw nothing.
template <> void Draw::draw(const NoOp&) {}

#define DRAW(T, call) template <> void Draw::draw(const T& r) { fCanvas->call; }
DRAW(Restore, restore());
DRAW(Save, save());
DRAW(SaveLayer, saveLayer(r.bounds, r.paint, r.flags));
DRAW(PopCull, popCull());
DRAW(PushCull, pushCull(r.rect));
DRAW(Clear, clear(r.color));
DRAW(SetMatrix, setMatrix(SkMatrix::Concat(fInitialCTM, r.matrix)));

DRAW(ClipPath, clipPath(r.path, r.op, r.doAA));
DRAW(ClipRRect, clipRRect(r.rrect, r.op, r.doAA));
DRAW(ClipRect, clipRect(r.rect, r.op, r.doAA));
DRAW(ClipRegion, clipRegion(r.region, r.op));

DRAW(BeginCommentGroup, beginCommentGroup(r.description));
DRAW(AddComment, addComment(r.key, r.value));
DRAW(EndCommentGroup, endCommentGroup());

DRAW(DrawBitmap, drawBitmap(shallow_copy(r.bitmap), r.left, r.top, r.paint));
DRAW(DrawBitmapMatrix, drawBitmapMatrix(shallow_copy(r.bitmap), r.matrix, r.paint));
DRAW(DrawBitmapNine, drawBitmapNine(shallow_copy(r.bitmap), r.center, r.dst, r.paint));
DRAW(DrawBitmapRectToRect,
        drawBitmapRectToRect(shallow_copy(r.bitmap), r.src, r.dst, r.paint, r.flags));
DRAW(DrawDRRect, drawDRRect(r.outer, r.inner, r.paint));
DRAW(DrawImage, drawImage(r.image, r.left, r.top, r.paint));
DRAW(DrawImageRect, drawImageRect(r.image, r.src, r.dst, r.paint));
DRAW(DrawOval, drawOval(r.oval, r.paint));
DRAW(DrawPaint, drawPaint(r.paint));
DRAW(DrawPath, drawPath(r.path, r.paint));
DRAW(DrawPatch, drawPatch(r.cubics, r.colors, r.texCoords, r.xmode, r.paint));
DRAW(DrawPicture, drawPicture(r.picture, r.matrix, r.paint));
DRAW(DrawPoints, drawPoints(r.mode, r.count, r.pts, r.paint));
DRAW(DrawPosText, drawPosText(r.text, r.byteLength, r.pos, r.paint));
DRAW(DrawPosTextH, drawPosTextH(r.text, r.byteLength, r.xpos, r.y, r.paint));
DRAW(DrawRRect, drawRRect(r.rrect, r.paint));
DRAW(DrawRect, drawRect(r.rect, r.paint));
DRAW(DrawSprite, drawSprite(shallow_copy(r.bitmap), r.left, r.top, r.paint));
DRAW(DrawText, drawText(r.text, r.byteLength, r.x, r.y, r.paint));
DRAW(DrawTextBlob, drawTextBlob(r.blob, r.x, r.y, r.paint));
DRAW(DrawTextOnPath, drawTextOnPath(r.text, r.byteLength, r.path, r.matrix, r.paint));
DRAW(DrawVertices, drawVertices(r.vmode, r.vertexCount, r.vertices, r.texs, r.colors,
                                r.xmode.get(), r.indices, r.indexCount, r.paint));
DRAW(DrawData, drawData(r.data, r.length));
#undef DRAW

// This is an SkRecord visitor that fills an SkBBoxHierarchy.
//
// The interesting part here is how to calculate bounds for ops which don't
// have intrinsic bounds.  What is the bounds of a Save or a Translate?
//
// We answer this by thinking about a particular definition of bounds: if I
// don't execute this op, pixels in this rectangle might draw incorrectly.  So
// the bounds of a Save, a Translate, a Restore, etc. are the union of the
// bounds of Draw* ops that they might have an effect on.  For any given
// Save/Restore block, the bounds of the Save, the Restore, and any other
// non-drawing ("control") ops inside are exactly the union of the bounds of
// the drawing ops inside that block.
//
// To implement this, we keep a stack of active Save blocks.  As we consume ops
// inside the Save/Restore block, drawing ops are unioned with the bounds of
// the block, and control ops are stashed away for later.  When we finish the
// block with a Restore, our bounds are complete, and we go back and fill them
// in for all the control ops we stashed away.
class FillBounds : SkNoncopyable {
public:
    FillBounds(const SkRect& cullRect, const SkRecord& record, SkBBoxHierarchy* bbh) 
        : fCullRect(cullRect)
        , fBounds(record.count()) {
        // Calculate bounds for all ops.  This won't go quite in order, so we'll need
        // to store the bounds separately then feed them in to the BBH later in order.
        fCTM = &SkMatrix::I();
        fCurrentClipBounds = fCullRect;
        for (fCurrentOp = 0; fCurrentOp < record.count(); fCurrentOp++) {
            record.visit<void>(fCurrentOp, *this);
        }

        // If we have any lingering unpaired Saves, simulate restores to make
        // sure all ops in those Save blocks have their bounds calculated.
        while (!fSaveStack.isEmpty()) {
            this->popSaveBlock();
        }

        // Any control ops not part of any Save/Restore block draw everywhere.
        while (!fControlIndices.isEmpty()) {
            this->popControl(fCullRect);
        }

        // Finally feed all stored bounds into the BBH.  They'll be returned in this order.
        SkASSERT(bbh);
        bbh->insert(&fBounds, record.count());
    }

    template <typename T> void operator()(const T& op) {
        this->updateCTM(op);
        this->updateClipBounds(op);
        this->trackBounds(op);
    }

private:
    // In this file, SkRect are in local coordinates, Bounds are translated back to identity space.
    typedef SkRect Bounds;

    struct SaveBounds {
        int controlOps;        // Number of control ops in this Save block, including the Save.
        Bounds bounds;         // Bounds of everything in the block.
        const SkPaint* paint;  // Unowned.  If set, adjusts the bounds of all ops in this block.
    };

    // Only Restore and SetMatrix change the CTM.
    template <typename T> void updateCTM(const T&) {}
    void updateCTM(const Restore& op)   { fCTM = &op.matrix; }
    void updateCTM(const SetMatrix& op) { fCTM = &op.matrix; }

    // Most ops don't change the clip.
    template <typename T> void updateClipBounds(const T&) {}

    // Clip{Path,RRect,Rect,Region} obviously change the clip.  They all know their bounds already.
    void updateClipBounds(const ClipPath&   op) { this->updateClipBoundsForClipOp(op.devBounds); }
    void updateClipBounds(const ClipRRect&  op) { this->updateClipBoundsForClipOp(op.devBounds); }
    void updateClipBounds(const ClipRect&   op) { this->updateClipBoundsForClipOp(op.devBounds); }
    void updateClipBounds(const ClipRegion& op) { this->updateClipBoundsForClipOp(op.devBounds); }

    // The bounds of clip ops need to be adjusted for the paints of saveLayers they're inside.
    void updateClipBoundsForClipOp(const SkIRect& devBounds) {
        Bounds clip = SkRect::Make(devBounds);
        // We don't call adjustAndMap() because as its last step it would intersect the adjusted
        // clip bounds with the previous clip, exactly what we can't do when the clip grows.
        fCurrentClipBounds = this->adjustForSaveLayerPaints(&clip) ? clip : fCullRect;
    }

    // Restore holds the devBounds for the clip after the {save,saveLayer}/restore block completes.
    void updateClipBounds(const Restore& op) {
        // This is just like the clip ops above, but we need to skip the effects (if any) of our
        // paired saveLayer (if it is one); it has not yet been popped off the save stack.  Our
        // devBounds reflect the state of the world after the saveLayer/restore block is done,
        // so they are not affected by the saveLayer's paint.
        const int kSavesToIgnore = 1;
        Bounds clip = SkRect::Make(op.devBounds);
        fCurrentClipBounds =
            this->adjustForSaveLayerPaints(&clip, kSavesToIgnore) ? clip : fCullRect;
    }

    // We also take advantage of SaveLayer bounds when present to further cut the clip down.
    void updateClipBounds(const SaveLayer& op)  {
        if (op.bounds) {
            // adjustAndMap() intersects these layer bounds with the previous clip for us.
            fCurrentClipBounds = this->adjustAndMap(*op.bounds, op.paint);
        }
    }

    // The bounds of these ops must be calculated when we hit the Restore
    // from the bounds of the ops in the same Save block.
    void trackBounds(const Save&)          { this->pushSaveBlock(NULL); }
    void trackBounds(const SaveLayer& op)  { this->pushSaveBlock(op.paint); }
    void trackBounds(const Restore&) { fBounds[fCurrentOp] = this->popSaveBlock(); }

    void trackBounds(const SetMatrix&)         { this->pushControl(); }
    void trackBounds(const ClipRect&)          { this->pushControl(); }
    void trackBounds(const ClipRRect&)         { this->pushControl(); }
    void trackBounds(const ClipPath&)          { this->pushControl(); }
    void trackBounds(const ClipRegion&)        { this->pushControl(); }
    void trackBounds(const PushCull&)          { this->pushControl(); }
    void trackBounds(const PopCull&)           { this->pushControl(); }
    void trackBounds(const BeginCommentGroup&) { this->pushControl(); }
    void trackBounds(const AddComment&)        { this->pushControl(); }
    void trackBounds(const EndCommentGroup&)   { this->pushControl(); }
    void trackBounds(const DrawData&)          { this->pushControl(); }

    // For all other ops, we can calculate and store the bounds directly now.
    template <typename T> void trackBounds(const T& op) {
        fBounds[fCurrentOp] = this->bounds(op);
        this->updateSaveBounds(fBounds[fCurrentOp]);
    }

    void pushSaveBlock(const SkPaint* paint) {
        // Starting a new Save block.  Push a new entry to represent that.
        SaveBounds sb;
        sb.controlOps = 0;
        // If the paint affects transparent black, the bound shouldn't be smaller
        // than the current clip bounds.
        sb.bounds =
            PaintMayAffectTransparentBlack(paint) ? fCurrentClipBounds : Bounds::MakeEmpty();
        sb.paint = paint;

        fSaveStack.push(sb);
        this->pushControl();
    }

    static bool PaintMayAffectTransparentBlack(const SkPaint* paint) {
        if (paint) {
            // FIXME: this is very conservative
            if (paint->getImageFilter() || paint->getColorFilter()) {
                return true;
            }

            // Unusual Xfermodes require us to process a saved layer
            // even with operations outisde the clip.
            // For example, DstIn is used by masking layers.
            // https://code.google.com/p/skia/issues/detail?id=1291
            // https://crbug.com/401593
            SkXfermode* xfermode = paint->getXfermode();
            SkXfermode::Mode mode;
            // SrcOver is ok, and is also the common case with a NULL xfermode.
            // So we should make that the fast path and bypass the mode extraction
            // and test.
            if (xfermode && xfermode->asMode(&mode)) {
                switch (mode) {
                    // For each of the following transfer modes, if the source
                    // alpha is zero (our transparent black), the resulting
                    // blended alpha is not necessarily equal to the original
                    // destination alpha.
                    case SkXfermode::kClear_Mode:
                    case SkXfermode::kSrc_Mode:
                    case SkXfermode::kSrcIn_Mode:
                    case SkXfermode::kDstIn_Mode:
                    case SkXfermode::kSrcOut_Mode:
                    case SkXfermode::kDstATop_Mode:
                    case SkXfermode::kModulate_Mode:
                        return true;
                        break;
                    default:
                        break;
                }
            }
        }
        return false;
    }

    Bounds popSaveBlock() {
        // We're done the Save block.  Apply the block's bounds to all control ops inside it.
        SaveBounds sb;
        fSaveStack.pop(&sb);

        while (sb.controlOps --> 0) {
            this->popControl(sb.bounds);
        }

        // This whole Save block may be part another Save block.
        this->updateSaveBounds(sb.bounds);

        // If called from a real Restore (not a phony one for balance), it'll need the bounds.
        return sb.bounds;
    }

    void pushControl() {
        fControlIndices.push(fCurrentOp);
        if (!fSaveStack.isEmpty()) {
            fSaveStack.top().controlOps++;
        }
    }

    void popControl(const Bounds& bounds) {
        fBounds[fControlIndices.top()] = bounds;
        fControlIndices.pop();
    }

    void updateSaveBounds(const Bounds& bounds) {
        // If we're in a Save block, expand its bounds to cover these bounds too.
        if (!fSaveStack.isEmpty()) {
            fSaveStack.top().bounds.join(bounds);
        }
    }

    // FIXME: this method could use better bounds
    Bounds bounds(const DrawText&) const { return fCurrentClipBounds; }

    Bounds bounds(const Clear&) const { return fCullRect; }             // Ignores the clip.
    Bounds bounds(const DrawPaint&) const { return fCurrentClipBounds; }
    Bounds bounds(const NoOp&)  const { return Bounds::MakeEmpty(); }    // NoOps don't draw.

    Bounds bounds(const DrawSprite& op) const {
        const SkBitmap& bm = op.bitmap;
        return Bounds::MakeXYWH(op.left, op.top, bm.width(), bm.height());  // Ignores the matrix.
    }

    Bounds bounds(const DrawRect& op) const { return this->adjustAndMap(op.rect, &op.paint); }
    Bounds bounds(const DrawOval& op) const { return this->adjustAndMap(op.oval, &op.paint); }
    Bounds bounds(const DrawRRect& op) const {
        return this->adjustAndMap(op.rrect.rect(), &op.paint);
    }
    Bounds bounds(const DrawDRRect& op) const {
        return this->adjustAndMap(op.outer.rect(), &op.paint);
    }
    Bounds bounds(const DrawImage& op) const {
        const SkImage* image = op.image;
        SkRect rect = SkRect::MakeXYWH(op.left, op.top, image->width(), image->height());

        return this->adjustAndMap(rect, op.paint);
    }
    Bounds bounds(const DrawImageRect& op) const {
        return this->adjustAndMap(op.dst, op.paint);
    }
    Bounds bounds(const DrawBitmapRectToRect& op) const {
        return this->adjustAndMap(op.dst, op.paint);
    }
    Bounds bounds(const DrawBitmapNine& op) const {
        return this->adjustAndMap(op.dst, op.paint);
    }
    Bounds bounds(const DrawBitmap& op) const {
        const SkBitmap& bm = op.bitmap;
        return this->adjustAndMap(SkRect::MakeXYWH(op.left, op.top, bm.width(), bm.height()),
                                  op.paint);
    }
    Bounds bounds(const DrawBitmapMatrix& op) const {
        const SkBitmap& bm = op.bitmap;
        SkRect dst = SkRect::MakeWH(bm.width(), bm.height());
        op.matrix.mapRect(&dst);
        return this->adjustAndMap(dst, op.paint);
    }

    Bounds bounds(const DrawPath& op) const {
        return op.path.isInverseFillType() ? fCurrentClipBounds
                                           : this->adjustAndMap(op.path.getBounds(), &op.paint);
    }
    Bounds bounds(const DrawPoints& op) const {
        SkRect dst;
        dst.set(op.pts, op.count);

        // Pad the bounding box a little to make sure hairline points' bounds aren't empty.
        SkScalar stroke = SkMaxScalar(op.paint.getStrokeWidth(), 0.01f);
        dst.outset(stroke/2, stroke/2);

        return this->adjustAndMap(dst, &op.paint);
    }
    Bounds bounds(const DrawPatch& op) const {
        SkRect dst;
        dst.set(op.cubics, SkPatchUtils::kNumCtrlPts);
        return this->adjustAndMap(dst, &op.paint);
    }
    Bounds bounds(const DrawVertices& op) const {
        SkRect dst;
        dst.set(op.vertices, op.vertexCount);
        return this->adjustAndMap(dst, &op.paint);
    }

    Bounds bounds(const DrawPicture& op) const {
        SkRect dst = op.picture->cullRect();
        if (op.matrix) {
            op.matrix->mapRect(&dst);
        }
        return this->adjustAndMap(dst, op.paint);
    }

    Bounds bounds(const DrawPosText& op) const {
        const int N = op.paint.countText(op.text, op.byteLength);
        if (N == 0) {
            return Bounds::MakeEmpty();
        }

        SkRect dst;
        dst.set(op.pos, N);
        AdjustTextForFontMetrics(&dst, op.paint);
        return this->adjustAndMap(dst, &op.paint);
    }
    Bounds bounds(const DrawPosTextH& op) const {
        const int N = op.paint.countText(op.text, op.byteLength);
        if (N == 0) {
            return Bounds::MakeEmpty();
        }

        SkScalar left = op.xpos[0], right = op.xpos[0];
        for (int i = 1; i < N; i++) {
            left  = SkMinScalar(left,  op.xpos[i]);
            right = SkMaxScalar(right, op.xpos[i]);
        }
        SkRect dst = { left, op.y, right, op.y };
        AdjustTextForFontMetrics(&dst, op.paint);
        return this->adjustAndMap(dst, &op.paint);
    }
    Bounds bounds(const DrawTextOnPath& op) const {
        SkRect dst = op.path.getBounds();

        // Pad all sides by the maximum padding in any direction we'd normally apply.
        SkRect pad = { 0, 0, 0, 0};
        AdjustTextForFontMetrics(&pad, op.paint);

        // That maximum padding happens to always be the right pad today.
        SkASSERT(pad.fLeft == -pad.fRight);
        SkASSERT(pad.fTop  == -pad.fBottom);
        SkASSERT(pad.fRight > pad.fBottom);
        dst.outset(pad.fRight, pad.fRight);

        return this->adjustAndMap(dst, &op.paint);
    }

    Bounds bounds(const DrawTextBlob& op) const {
        SkRect dst = op.blob->bounds();
        dst.offset(op.x, op.y);
        return this->adjustAndMap(dst, &op.paint);
    }

    static void AdjustTextForFontMetrics(SkRect* rect, const SkPaint& paint) {
#ifdef SK_DEBUG
        SkRect correct = *rect;
#endif
        // crbug.com/373785 ~~> xPad = 4x yPad
        // crbug.com/424824 ~~> bump yPad from 2x text size to 2.5x
        const SkScalar yPad = 2.5f * paint.getTextSize(),
                       xPad = 4.0f * yPad;
        rect->outset(xPad, yPad);
#ifdef SK_DEBUG
        SkPaint::FontMetrics metrics;
        paint.getFontMetrics(&metrics);
        correct.fLeft   += metrics.fXMin;
        correct.fTop    += metrics.fTop;
        correct.fRight  += metrics.fXMax;
        correct.fBottom += metrics.fBottom;
        // See skia:2862 for why we ignore small text sizes.
        SkASSERTF(paint.getTextSize() < 0.001f || rect->contains(correct),
                  "%f %f %f %f vs. %f %f %f %f\n",
                  -xPad, -yPad, +xPad, +yPad,
                  metrics.fXMin, metrics.fTop, metrics.fXMax, metrics.fBottom);
#endif
    }

    // Returns true if rect was meaningfully adjusted for the effects of paint,
    // false if the paint could affect the rect in unknown ways.
    static bool AdjustForPaint(const SkPaint* paint, SkRect* rect) {
        if (paint) {
            if (paint->canComputeFastBounds()) {
                *rect = paint->computeFastBounds(*rect, rect);
                return true;
            }
            return false;
        }
        return true;
    }

    bool adjustForSaveLayerPaints(SkRect* rect, int savesToIgnore = 0) const {
        for (int i = fSaveStack.count() - 1 - savesToIgnore; i >= 0; i--) {
            if (!AdjustForPaint(fSaveStack[i].paint, rect)) {
                return false;
            }
        }
        return true;
    }

    // Adjust rect for all paints that may affect its geometry, then map it to identity space.
    Bounds adjustAndMap(SkRect rect, const SkPaint* paint) const {
        // Inverted rectangles really confuse our BBHs.
        rect.sort();

        // Adjust the rect for its own paint.
        if (!AdjustForPaint(paint, &rect)) {
            // The paint could do anything to our bounds.  The only safe answer is the current clip.
            return fCurrentClipBounds;
        }

        // Adjust rect for all the paints from the SaveLayers we're inside.
        if (!this->adjustForSaveLayerPaints(&rect)) {
            // Same deal as above.
            return fCurrentClipBounds;
        }

        // Map the rect back to identity space.
        fCTM->mapRect(&rect);

        // Nothing can draw outside the current clip.
        // (Only bounded ops call into this method, so oddballs like Clear don't matter here.)
        rect.intersect(fCurrentClipBounds);
        return rect;
    }

    // We do not guarantee anything for operations outside of the cull rect
    const SkRect fCullRect;

    // Conservative identity-space bounds for each op in the SkRecord.
    SkAutoTMalloc<Bounds> fBounds;

    // We walk fCurrentOp through the SkRecord, as we go using updateCTM()
    // and updateClipBounds() to maintain the exact CTM (fCTM) and conservative
    // identity-space bounds of the current clip (fCurrentClipBounds).
    unsigned fCurrentOp;
    const SkMatrix* fCTM;
    Bounds fCurrentClipBounds;

    // Used to track the bounds of Save/Restore blocks and the control ops inside them.
    SkTDArray<SaveBounds> fSaveStack;
    SkTDArray<unsigned>   fControlIndices;
};

}  // namespace SkRecords
Пример #18
0
void process_tree(struct rooted_tree *tree, struct parameters params)
{
	struct llist *descendants;

	switch (params.mode) {
	case EXACT:
		descendants = nodes_from_labels(tree, params.labels);
		if (NULL == descendants) { perror(NULL); exit(EXIT_FAILURE); }
		if (0 == descendants->count) {
			fprintf (stderr, "WARNING: no label matches.\n");
			/* I don't consider this a failure: it is just the case
			 * that the tree does not contain the specified labels.
			 * */
			exit(EXIT_SUCCESS);
		}
		break;
	case REGEXP:
		descendants = nodes_from_regexp(tree, params.regexp);
		if (NULL == descendants) { perror(NULL); exit(EXIT_FAILURE); }
		if (0 == descendants->count) {
			fprintf (stderr, "WARNING: no match for regexp /%s/\n",
					params.regexp_string);
			exit(EXIT_SUCCESS); /** see above */
		}
		break;
	default:
		fprintf (stderr, "Unknown mode %d\n", params.mode);
		exit(EXIT_FAILURE);
	}

	/* We need a copy b/c lca() modifies its arg */
	struct llist *desc_clone = shallow_copy(descendants);
	if (NULL == desc_clone) { perror(NULL); exit(EXIT_FAILURE); }
	struct rnode *subtree_root = lca(tree, desc_clone);
	if (NULL == subtree_root) { perror(NULL); exit(EXIT_FAILURE); }
	free(desc_clone); /* elems freed in lca() */

	/* Jump up tree to get context, if any was required ('context' > 0) */
	int context;
	for (context = params.context; context > 0; context--)
		if (! is_root(subtree_root))
			subtree_root = subtree_root->parent;

	// TODO: could not replace to_newick() by dump_newick() due to side
	// effects. Investigate.

	if (NULL != subtree_root) {
		if ((! params.check_monophyly) ||
		    (is_monophyletic(descendants, subtree_root))) {
			/* monophyly of input labels is verified or not
			 * requested */
			char *newick;
			if (params.siblings) {
				struct llist *sibs = siblings(subtree_root);
				if (NULL == sibs) {
					perror(NULL);
					exit(EXIT_FAILURE);
				}
				struct list_elem *el;
				for (el=sibs->head;NULL!=el;el=el->next) {
					struct rnode *sib;
					sib = el->data;
					newick = to_newick(sib);
					printf ("%s\n", newick);
					free(newick);
				}
				destroy_llist(sibs);
			} else {
				/* normal operation: print clade defined by
				 * labels. */
				newick = to_newick(subtree_root);
				printf ("%s\n", newick);
				free(newick);
			}
		}
	} else {
		fprintf (stderr, "WARNING: LCA not found\n");
	}

	destroy_llist(descendants);

}
Пример #19
0
  Statement* Cssize::debubble(Block* children, Statement* parent)
  {
    Has_Block* previous_parent = 0;
    std::vector<std::pair<bool, Block*>> baz = slice_by_bubble(children);
    Block* result = SASS_MEMORY_NEW(ctx.mem, Block, children->pstate());

    for (size_t i = 0, L = baz.size(); i < L; ++i) {
      bool is_bubble = baz[i].first;
      Block* slice = baz[i].second;

      if (!is_bubble) {
        if (!parent) {
          *result << slice;
        }
        else if (previous_parent) {
          *previous_parent->block() += slice;
        }
        else {
          previous_parent = static_cast<Has_Block*>(shallow_copy(parent));
          previous_parent->tabs(parent->tabs());

          Has_Block* new_parent = static_cast<Has_Block*>(shallow_copy(parent));
          new_parent->block(slice);
          new_parent->tabs(parent->tabs());

          *result << new_parent;
        }
        continue;
      }

      Block* wrapper_block = SASS_MEMORY_NEW(ctx.mem, Block,
                                             children->block()->pstate(),
                                             children->block()->length(),
                                             children->block()->is_root());

      for (size_t j = 0, K = slice->length(); j < K; ++j)
      {
        Statement* ss = 0;
        Bubble* b = static_cast<Bubble*>((*slice)[j]);

        if (!parent ||
            parent->statement_type() != Statement::MEDIA ||
            b->node()->statement_type() != Statement::MEDIA ||
            static_cast<Media_Block*>(b->node())->media_queries() == static_cast<Media_Block*>(parent)->media_queries())
        {
          ss = b->node();
        }
        else
        {
          List* mq = merge_media_queries(static_cast<Media_Block*>(b->node()), static_cast<Media_Block*>(parent));
          if (!mq->length()) continue;
          static_cast<Media_Block*>(b->node())->media_queries(mq);
          ss = b->node();
        }

        if (!ss) continue;

        ss->tabs(ss->tabs() + b->tabs());
        ss->group_end(b->group_end());

        if (!ss) continue;

        Block* bb = SASS_MEMORY_NEW(ctx.mem, Block,
                                    children->block()->pstate(),
                                    children->block()->length(),
                                    children->block()->is_root());
        *bb << ss->perform(this);
        Statement* wrapper = flatten(bb);
        *wrapper_block << wrapper;

        if (wrapper->block()->length()) {
          previous_parent = 0;
        }
      }

      if (wrapper_block) {
        *result << flatten(wrapper_block);
      }
    }

    return flatten(result);
  }
Пример #20
0
/*! zcovector=_zcovector operator */
inline zcovector& zcovector::operator=(const _zcovector& vec)
{VERBOSE_REPORT;
  shallow_copy(vec);
  return *this;
}