bool SVGTransformable::parseTransformAttribute(SVGTransformList* list, const AtomicString& transform) { double x[] = {0, 0, 0, 0, 0, 0}; int nr = 0, required = 0, optional = 0; const UChar* currTransform = transform.characters(); const UChar* end = currTransform + transform.length(); bool delimParsed = false; while (currTransform < end) { delimParsed = false; unsigned short type = SVGTransform::SVG_TRANSFORM_UNKNOWN; skipOptionalSpaces(currTransform, end); if (currTransform >= end) return false; if (*currTransform == 's') { if (skipString(currTransform, end, skewXDesc, sizeof(skewXDesc) / sizeof(UChar))) { required = 1; optional = 0; type = SVGTransform::SVG_TRANSFORM_SKEWX; } else if (skipString(currTransform, end, skewYDesc, sizeof(skewYDesc) / sizeof(UChar))) { required = 1; optional = 0; type = SVGTransform::SVG_TRANSFORM_SKEWY; } else if (skipString(currTransform, end, scaleDesc, sizeof(scaleDesc) / sizeof(UChar))) { required = 1; optional = 1; type = SVGTransform::SVG_TRANSFORM_SCALE; } else return false; } else if (skipString(currTransform, end, translateDesc, sizeof(translateDesc) / sizeof(UChar))) { required = 1; optional = 1; type = SVGTransform::SVG_TRANSFORM_TRANSLATE; } else if (skipString(currTransform, end, rotateDesc, sizeof(rotateDesc) / sizeof(UChar))) { required = 1; optional = 2; type = SVGTransform::SVG_TRANSFORM_ROTATE; } else if (skipString(currTransform, end, matrixDesc, sizeof(matrixDesc) / sizeof(UChar))) { required = 6; optional = 0; type = SVGTransform::SVG_TRANSFORM_MATRIX; } else return false; if ((nr = parseTransformParamList(currTransform, end, x, required, optional)) < 0) return false; SVGTransform t; switch (type) { case SVGTransform::SVG_TRANSFORM_SKEWX: t.setSkewX(narrowPrecisionToFloat(x[0])); break; case SVGTransform::SVG_TRANSFORM_SKEWY: t.setSkewY(narrowPrecisionToFloat(x[0])); break; case SVGTransform::SVG_TRANSFORM_SCALE: if (nr == 1) // Spec: if only one param given, assume uniform scaling t.setScale(narrowPrecisionToFloat(x[0]), narrowPrecisionToFloat(x[0])); else t.setScale(narrowPrecisionToFloat(x[0]), narrowPrecisionToFloat(x[1])); break; case SVGTransform::SVG_TRANSFORM_TRANSLATE: if (nr == 1) // Spec: if only one param given, assume 2nd param to be 0 t.setTranslate(narrowPrecisionToFloat(x[0]), 0); else t.setTranslate(narrowPrecisionToFloat(x[0]), narrowPrecisionToFloat(x[1])); break; case SVGTransform::SVG_TRANSFORM_ROTATE: if (nr == 1) t.setRotate(narrowPrecisionToFloat(x[0]), 0, 0); else t.setRotate(narrowPrecisionToFloat(x[0]), narrowPrecisionToFloat(x[1]), narrowPrecisionToFloat(x[2])); break; case SVGTransform::SVG_TRANSFORM_MATRIX: t.setMatrix(AffineTransform(x[0], x[1], x[2], x[3], x[4], x[5])); break; } ExceptionCode ec = 0; list->appendItem(t, ec); skipOptionalSpaces(currTransform, end); if (currTransform < end && *currTransform == ',') { delimParsed = true; currTransform++; } skipOptionalSpaces(currTransform, end); } return !delimParsed; }
AffineTransform AffineTransform::verticalFlip (const float height) noexcept { return AffineTransform (1.0f, 0, 0, 0, -1.0f, height); }
AffineTransform SVGSVGElement::createSVGMatrix() { return AffineTransform(); }
AffineTransform AffineTransform::scale (const float factor) noexcept { return AffineTransform (factor, 0, 0, 0, factor, 0); }
AffineTransform AffineTransform::scale (const float factorX, const float factorY, const float pivotX, const float pivotY) noexcept { return AffineTransform (factorX, 0, pivotX * (1.0f - factorX), 0, factorY, pivotY * (1.0f - factorY)); }
void PathStrokeType::createDashedStroke (Path& destPath, const Path& sourcePath, const float* dashLengths, int numDashLengths, const AffineTransform& transform, const float extraAccuracy) const { jassert (extraAccuracy > 0); if (thickness <= 0) return; Path newDestPath; PathFlatteningIterator it (sourcePath, transform, PathFlatteningIterator::defaultTolerance / extraAccuracy); bool first = true; int dashNum = 0; float pos = 0.0f, lineLen = 0.0f, lineEndPos = 0.0f; float dx = 0.0f, dy = 0.0f; for (;;) { const bool isSolid = ((dashNum & 1) == 0); const float dashLen = dashLengths [dashNum++ % numDashLengths]; jassert (dashLen > 0); // must be a positive increment! if (dashLen <= 0) break; pos += dashLen; while (pos > lineEndPos) { if (! it.next()) { if (isSolid && ! first) newDestPath.lineTo (it.x2, it.y2); createStrokedPath (destPath, newDestPath, AffineTransform(), extraAccuracy); return; } if (isSolid && ! first) newDestPath.lineTo (it.x1, it.y1); else newDestPath.startNewSubPath (it.x1, it.y1); dx = it.x2 - it.x1; dy = it.y2 - it.y1; lineLen = juce_hypot (dx, dy); lineEndPos += lineLen; first = it.closesSubPath; } const float alpha = (pos - (lineEndPos - lineLen)) / lineLen; if (isSolid) newDestPath.lineTo (it.x1 + dx * alpha, it.y1 + dy * alpha); else newDestPath.startNewSubPath (it.x1 + dx * alpha, it.y1 + dy * alpha); } }
AffineTransform AffineTransform::withAbsoluteTranslation (const float tx, const float ty) const noexcept { return AffineTransform (mat00, mat01, tx, mat10, mat11, ty); }
SVGTransformDistance SVGTransformDistance::scaledDistance(float scaleFactor) const { switch (m_type) { case SVGTransform::SVG_TRANSFORM_UNKNOWN: return SVGTransformDistance(); case SVGTransform::SVG_TRANSFORM_ROTATE: return SVGTransformDistance(m_type, m_angle * scaleFactor, m_cx * scaleFactor, m_cy * scaleFactor, AffineTransform()); case SVGTransform::SVG_TRANSFORM_SCALE: case SVGTransform::SVG_TRANSFORM_MATRIX: return SVGTransformDistance(m_type, m_angle * scaleFactor, m_cx * scaleFactor, m_cy * scaleFactor, AffineTransform(m_transform).scale(scaleFactor)); case SVGTransform::SVG_TRANSFORM_TRANSLATE: { AffineTransform newTransform(m_transform); newTransform.setE(m_transform.e() * scaleFactor); newTransform.setF(m_transform.f() * scaleFactor); return SVGTransformDistance(m_type, 0, 0, 0, newTransform); } case SVGTransform::SVG_TRANSFORM_SKEWX: case SVGTransform::SVG_TRANSFORM_SKEWY: return SVGTransformDistance(m_type, m_angle * scaleFactor, m_cx * scaleFactor, m_cy * scaleFactor, AffineTransform()); } ASSERT_NOT_REACHED(); return SVGTransformDistance(); }
AffineTransform RenderForeignObject::translationForAttributes() { SVGForeignObjectElement* foreign = static_cast<SVGForeignObjectElement*>(element()); return AffineTransform().translate(foreign->x().value(), foreign->y().value()); }
AffineTransform SVGElement::localCoordinateSpaceTransform(CTMScope) const { // To be overriden by SVGGraphicsElement (or as special case SVGTextElement and SVGPatternElement) return AffineTransform(); }
bool SVGTransformDistance::isZero() const { return (m_transform == AffineTransform() && m_angle == 0); }
PassRefPtrWillBeRawPtr<SVGMatrixTearOff> SVGSVGElement::createSVGMatrix() { return SVGMatrixTearOff::create(AffineTransform()); }
//============================================================================== void LowLevelGraphicsPostScriptRenderer::drawLine (const Line <float>& line) { Path p; p.addLineSegment (line, 1.0f); fillPath (p, AffineTransform()); }
void LowLevelGraphicsPostScriptRenderer::fillRectList (const RectangleList<float>& list) { fillPath (list.toPath(), AffineTransform()); }
// FIXME: Merge with the other drawTiled eventually, since we need a combination of both for some things. void Image::drawTiled(GraphicsContext& ctxt, const FloatRect& dstRect, const FloatRect& srcRect, const FloatSize& tileScaleFactor, TileRule hRule, TileRule vRule, CompositeOperator op) { if (mayFillWithSolidColor()) { fillWithSolidColor(ctxt, dstRect, solidColor(), op); return; } FloatSize tileScale = tileScaleFactor; FloatSize spacing; // FIXME: These rules follow CSS border-image rules, but they should not be down here in Image. bool centerOnGapHorizonally = false; bool centerOnGapVertically = false; switch (hRule) { case RoundTile: { int numItems = std::max<int>(floorf(dstRect.width() / srcRect.width()), 1); tileScale.setWidth(dstRect.width() / (srcRect.width() * numItems)); break; } case SpaceTile: { int numItems = floorf(dstRect.width() / srcRect.width()); if (!numItems) return; spacing.setWidth((dstRect.width() - srcRect.width() * numItems) / (numItems + 1)); tileScale.setWidth(1); centerOnGapHorizonally = !(numItems & 1); break; } case StretchTile: case RepeatTile: break; } switch (vRule) { case RoundTile: { int numItems = std::max<int>(floorf(dstRect.height() / srcRect.height()), 1); tileScale.setHeight(dstRect.height() / (srcRect.height() * numItems)); break; } case SpaceTile: { int numItems = floorf(dstRect.height() / srcRect.height()); if (!numItems) return; spacing.setHeight((dstRect.height() - srcRect.height() * numItems) / (numItems + 1)); tileScale.setHeight(1); centerOnGapVertically = !(numItems & 1); break; } case StretchTile: case RepeatTile: break; } AffineTransform patternTransform = AffineTransform().scaleNonUniform(tileScale.width(), tileScale.height()); // We want to construct the phase such that the pattern is centered (when stretch is not // set for a particular rule). float hPhase = tileScale.width() * srcRect.x(); float vPhase = tileScale.height() * srcRect.y(); float scaledTileWidth = tileScale.width() * srcRect.width(); float scaledTileHeight = tileScale.height() * srcRect.height(); if (centerOnGapHorizonally) hPhase -= spacing.width(); else if (hRule == Image::RepeatTile || hRule == Image::SpaceTile) hPhase -= (dstRect.width() - scaledTileWidth) / 2; if (centerOnGapVertically) vPhase -= spacing.height(); else if (vRule == Image::RepeatTile || vRule == Image::SpaceTile) vPhase -= (dstRect.height() - scaledTileHeight) / 2; FloatPoint patternPhase(dstRect.x() - hPhase, dstRect.y() - vPhase); drawPattern(ctxt, srcRect, patternTransform, patternPhase, spacing, op, dstRect); #if PLATFORM(IOS) startAnimation(DoNotCatchUp); #else startAnimation(); #endif }
void Font::drawGlyphs(GraphicsContext* gc, const SimpleFontData* font, const GlyphBuffer& glyphBuffer, unsigned from, unsigned numGlyphs, const FloatPoint& point, const FloatRect& textRect) const { SkScalar x = SkFloatToScalar(point.x()); SkScalar y = SkFloatToScalar(point.y()); const OpenTypeVerticalData* verticalData = font->verticalData(); if (font->platformData().orientation() == Vertical && verticalData) { SkAutoSTMalloc<32, SkPoint> storage(numGlyphs); SkPoint* pos = storage.get(); AffineTransform savedMatrix = gc->getCTM(); gc->concatCTM(AffineTransform(0, -1, 1, 0, point.x(), point.y())); gc->concatCTM(AffineTransform(1, 0, 0, 1, -point.x(), -point.y())); const unsigned kMaxBufferLength = 256; Vector<FloatPoint, kMaxBufferLength> translations; const FontMetrics& metrics = font->fontMetrics(); SkScalar verticalOriginX = SkFloatToScalar(point.x() + metrics.floatAscent() - metrics.floatAscent(IdeographicBaseline)); float horizontalOffset = point.x(); unsigned glyphIndex = 0; while (glyphIndex < numGlyphs) { unsigned chunkLength = std::min(kMaxBufferLength, numGlyphs - glyphIndex); const Glyph* glyphs = glyphBuffer.glyphs(from + glyphIndex); translations.resize(chunkLength); verticalData->getVerticalTranslationsForGlyphs(font, &glyphs[0], chunkLength, reinterpret_cast<float*>(&translations[0])); x = verticalOriginX; y = SkFloatToScalar(point.y() + horizontalOffset - point.x()); float currentWidth = 0; for (unsigned i = 0; i < chunkLength; ++i, ++glyphIndex) { pos[i].set( x + SkIntToScalar(lroundf(translations[i].x())), y + -SkIntToScalar(-lroundf(currentWidth - translations[i].y()))); currentWidth += glyphBuffer.advanceAt(from + glyphIndex); } horizontalOffset += currentWidth; paintGlyphs(gc, font, glyphs, chunkLength, pos, textRect); } gc->setCTM(savedMatrix); return; } if (!glyphBuffer.hasOffsets()) { SkAutoSTMalloc<64, SkScalar> storage(numGlyphs); SkScalar* xpos = storage.get(); const float* adv = glyphBuffer.advances(from); for (unsigned i = 0; i < numGlyphs; i++) { xpos[i] = x; x += SkFloatToScalar(adv[i]); } const Glyph* glyphs = glyphBuffer.glyphs(from); paintGlyphsHorizontal(gc, font, glyphs, numGlyphs, xpos, SkFloatToScalar(y), textRect); return; } // FIXME: text rendering speed: // Android has code in their WebCore fork to special case when the // GlyphBuffer has no advances other than the defaults. In that case the // text drawing can proceed faster. However, it's unclear when those // patches may be upstreamed to WebKit so we always use the slower path // here. SkAutoSTMalloc<32, SkPoint> storage(numGlyphs); SkPoint* pos = storage.get(); const FloatSize* offsets = glyphBuffer.offsets(from); const float* advances = glyphBuffer.advances(from); SkScalar advanceSoFar = SkFloatToScalar(0); for (unsigned i = 0; i < numGlyphs; i++) { pos[i].set( x + SkFloatToScalar(offsets[i].width()) + advanceSoFar, y + SkFloatToScalar(offsets[i].height())); advanceSoFar += SkFloatToScalar(advances[i]); } const Glyph* glyphs = glyphBuffer.glyphs(from); paintGlyphs(gc, font, glyphs, numGlyphs, pos, textRect); }
void Image::drawTiled(GraphicsContext& ctxt, const FloatRect& destRect, const FloatPoint& srcPoint, const FloatSize& scaledTileSize, const FloatSize& spacing, CompositeOperator op, BlendMode blendMode) { if (mayFillWithSolidColor()) { fillWithSolidColor(ctxt, destRect, solidColor(), op); return; } ASSERT(!isBitmapImage() || notSolidColor()); #if PLATFORM(IOS) FloatSize intrinsicTileSize = originalSize(); #else FloatSize intrinsicTileSize = size(); #endif if (hasRelativeWidth()) intrinsicTileSize.setWidth(scaledTileSize.width()); if (hasRelativeHeight()) intrinsicTileSize.setHeight(scaledTileSize.height()); FloatSize scale(scaledTileSize.width() / intrinsicTileSize.width(), scaledTileSize.height() / intrinsicTileSize.height()); FloatRect oneTileRect; FloatSize actualTileSize(scaledTileSize.width() + spacing.width(), scaledTileSize.height() + spacing.height()); oneTileRect.setX(destRect.x() + fmodf(fmodf(-srcPoint.x(), actualTileSize.width()) - actualTileSize.width(), actualTileSize.width())); oneTileRect.setY(destRect.y() + fmodf(fmodf(-srcPoint.y(), actualTileSize.height()) - actualTileSize.height(), actualTileSize.height())); oneTileRect.setSize(scaledTileSize); // Check and see if a single draw of the image can cover the entire area we are supposed to tile. if (oneTileRect.contains(destRect) && !ctxt.drawLuminanceMask()) { FloatRect visibleSrcRect; visibleSrcRect.setX((destRect.x() - oneTileRect.x()) / scale.width()); visibleSrcRect.setY((destRect.y() - oneTileRect.y()) / scale.height()); visibleSrcRect.setWidth(destRect.width() / scale.width()); visibleSrcRect.setHeight(destRect.height() / scale.height()); draw(ctxt, destRect, visibleSrcRect, op, blendMode, ImageOrientationDescription()); return; } #if PLATFORM(IOS) // When using accelerated drawing on iOS, it's faster to stretch an image than to tile it. if (ctxt.isAcceleratedContext()) { if (size().width() == 1 && intersection(oneTileRect, destRect).height() == destRect.height()) { FloatRect visibleSrcRect; visibleSrcRect.setX(0); visibleSrcRect.setY((destRect.y() - oneTileRect.y()) / scale.height()); visibleSrcRect.setWidth(1); visibleSrcRect.setHeight(destRect.height() / scale.height()); draw(ctxt, destRect, visibleSrcRect, op, BlendModeNormal, ImageOrientationDescription()); return; } if (size().height() == 1 && intersection(oneTileRect, destRect).width() == destRect.width()) { FloatRect visibleSrcRect; visibleSrcRect.setX((destRect.x() - oneTileRect.x()) / scale.width()); visibleSrcRect.setY(0); visibleSrcRect.setWidth(destRect.width() / scale.width()); visibleSrcRect.setHeight(1); draw(ctxt, destRect, visibleSrcRect, op, BlendModeNormal, ImageOrientationDescription()); return; } } #endif // Patterned images and gradients can use lots of memory for caching when the // tile size is large (<rdar://problem/4691859>, <rdar://problem/6239505>). // Memory consumption depends on the transformed tile size which can get // larger than the original tile if user zooms in enough. #if PLATFORM(IOS) const float maxPatternTilePixels = 512 * 512; #else const float maxPatternTilePixels = 2048 * 2048; #endif FloatRect transformedTileSize = ctxt.getCTM().mapRect(FloatRect(FloatPoint(), scaledTileSize)); float transformedTileSizePixels = transformedTileSize.width() * transformedTileSize.height(); FloatRect currentTileRect = oneTileRect; if (transformedTileSizePixels > maxPatternTilePixels) { GraphicsContextStateSaver stateSaver(ctxt); ctxt.clip(destRect); currentTileRect.shiftYEdgeTo(destRect.y()); float toY = currentTileRect.y(); while (toY < destRect.maxY()) { currentTileRect.shiftXEdgeTo(destRect.x()); float toX = currentTileRect.x(); while (toX < destRect.maxX()) { FloatRect toRect(toX, toY, currentTileRect.width(), currentTileRect.height()); FloatRect fromRect(toFloatPoint(currentTileRect.location() - oneTileRect.location()), currentTileRect.size()); fromRect.scale(1 / scale.width(), 1 / scale.height()); draw(ctxt, toRect, fromRect, op, BlendModeNormal, ImageOrientationDescription()); toX += currentTileRect.width(); currentTileRect.shiftXEdgeTo(oneTileRect.x()); } toY += currentTileRect.height(); currentTileRect.shiftYEdgeTo(oneTileRect.y()); } return; } AffineTransform patternTransform = AffineTransform().scaleNonUniform(scale.width(), scale.height()); FloatRect tileRect(FloatPoint(), intrinsicTileSize); drawPattern(ctxt, tileRect, patternTransform, oneTileRect.location(), spacing, op, destRect, blendMode); #if PLATFORM(IOS) startAnimation(DoNotCatchUp); #else startAnimation(); #endif }
bool RenderSVGResourceFilter::applyResource(RenderObject* object, RenderStyle*, GraphicsContext*& context, unsigned short resourceMode) { ASSERT(object); ASSERT(context); ASSERT_UNUSED(resourceMode, resourceMode == ApplyToDefaultMode); if (m_filter.contains(object)) { FilterData* filterData = m_filter.get(object); if (filterData->state == FilterData::PaintingSource || filterData->state == FilterData::Applying) filterData->state = FilterData::CycleDetected; return false; // Already built, or we're in a cycle, or we're marked for removal. Regardless, just do nothing more now. } auto filterData = std::make_unique<FilterData>(); FloatRect targetBoundingBox = object->objectBoundingBox(); filterData->boundaries = SVGLengthContext::resolveRectangle<SVGFilterElement>(&filterElement(), filterElement().filterUnits(), targetBoundingBox); if (filterData->boundaries.isEmpty()) return false; // Determine absolute transformation matrix for filter. AffineTransform absoluteTransform; SVGRenderingContext::calculateTransformationToOutermostCoordinateSystem(object, absoluteTransform); if (!absoluteTransform.isInvertible()) return false; // Eliminate shear of the absolute transformation matrix, to be able to produce unsheared tile images for feTile. filterData->shearFreeAbsoluteTransform = AffineTransform(absoluteTransform.xScale(), 0, 0, absoluteTransform.yScale(), 0, 0); // Determine absolute boundaries of the filter and the drawing region. FloatRect absoluteFilterBoundaries = filterData->shearFreeAbsoluteTransform.mapRect(filterData->boundaries); filterData->drawingRegion = object->strokeBoundingBox(); filterData->drawingRegion.intersect(filterData->boundaries); FloatRect absoluteDrawingRegion = filterData->shearFreeAbsoluteTransform.mapRect(filterData->drawingRegion); // Create the SVGFilter object. bool primitiveBoundingBoxMode = filterElement().primitiveUnits() == SVGUnitTypes::SVG_UNIT_TYPE_OBJECTBOUNDINGBOX; filterData->filter = SVGFilter::create(filterData->shearFreeAbsoluteTransform, absoluteDrawingRegion, targetBoundingBox, filterData->boundaries, primitiveBoundingBoxMode); // Create all relevant filter primitives. filterData->builder = buildPrimitives(filterData->filter.get()); if (!filterData->builder) return false; // Calculate the scale factor for the use of filterRes. // Also see http://www.w3.org/TR/SVG/filters.html#FilterEffectsRegion FloatSize scale(1, 1); if (filterElement().hasAttribute(SVGNames::filterResAttr)) { scale.setWidth(filterElement().filterResX() / absoluteFilterBoundaries.width()); scale.setHeight(filterElement().filterResY() / absoluteFilterBoundaries.height()); } if (scale.isEmpty()) return false; // Determine scale factor for filter. The size of intermediate ImageBuffers shouldn't be bigger than kMaxFilterSize. FloatRect tempSourceRect = absoluteDrawingRegion; tempSourceRect.scale(scale.width(), scale.height()); fitsInMaximumImageSize(tempSourceRect.size(), scale); // Set the scale level in SVGFilter. filterData->filter->setFilterResolution(scale); FilterEffect* lastEffect = filterData->builder->lastEffect(); if (!lastEffect) return false; RenderSVGResourceFilterPrimitive::determineFilterPrimitiveSubregion(lastEffect); FloatRect subRegion = lastEffect->maxEffectRect(); // At least one FilterEffect has a too big image size, // recalculate the effect sizes with new scale factors. if (!fitsInMaximumImageSize(subRegion.size(), scale)) { filterData->filter->setFilterResolution(scale); RenderSVGResourceFilterPrimitive::determineFilterPrimitiveSubregion(lastEffect); } // If the drawingRegion is empty, we have something like <g filter=".."/>. // Even if the target objectBoundingBox() is empty, we still have to draw the last effect result image in postApplyResource. if (filterData->drawingRegion.isEmpty()) { ASSERT(!m_filter.contains(object)); filterData->savedContext = context; m_filter.set(object, std::move(filterData)); return false; } // Change the coordinate transformation applied to the filtered element to reflect the resolution of the filter. AffineTransform effectiveTransform; effectiveTransform.scale(scale.width(), scale.height()); effectiveTransform.multiply(filterData->shearFreeAbsoluteTransform); OwnPtr<ImageBuffer> sourceGraphic; RenderingMode renderingMode = object->frame().settings().acceleratedFiltersEnabled() ? Accelerated : Unaccelerated; if (!SVGRenderingContext::createImageBuffer(filterData->drawingRegion, effectiveTransform, sourceGraphic, ColorSpaceLinearRGB, renderingMode)) { ASSERT(!m_filter.contains(object)); filterData->savedContext = context; m_filter.set(object, std::move(filterData)); return false; } // Set the rendering mode from the page's settings. filterData->filter->setRenderingMode(renderingMode); GraphicsContext* sourceGraphicContext = sourceGraphic->context(); ASSERT(sourceGraphicContext); filterData->sourceGraphicBuffer = sourceGraphic.release(); filterData->savedContext = context; context = sourceGraphicContext; ASSERT(!m_filter.contains(object)); m_filter.set(object, std::move(filterData)); return true; }
AffineTransform AffineTransform::translation (const float dx, const float dy) noexcept { return AffineTransform (1.0f, 0, dx, 0, 1.0f, dy); }
void GlyphArrangement::draw (const Graphics& g) const { draw (g, AffineTransform()); }
AffineTransform AffineTransform::scaled (const float factorX, const float factorY) const noexcept { return AffineTransform (factorX * mat00, factorX * mat01, factorX * mat02, factorY * mat10, factorY * mat11, factorY * mat12); }
void writeSVGResourceContainer(TextStream& ts, const RenderObject& object, int indent) { writeStandardPrefix(ts, object, indent); Element* element = toElement(object.node()); const AtomicString& id = element->getIdAttribute(); writeNameAndQuotedValue(ts, "id", id); RenderSVGResourceContainer* resource = const_cast<RenderObject&>(object).toRenderSVGResourceContainer(); ASSERT(resource); if (resource->resourceType() == MaskerResourceType) { RenderSVGResourceMasker* masker = static_cast<RenderSVGResourceMasker*>(resource); writeNameValuePair(ts, "maskUnits", masker->maskUnits()); writeNameValuePair(ts, "maskContentUnits", masker->maskContentUnits()); ts << "\n"; #if ENABLE(FILTERS) } else if (resource->resourceType() == FilterResourceType) { RenderSVGResourceFilter* filter = static_cast<RenderSVGResourceFilter*>(resource); writeNameValuePair(ts, "filterUnits", filter->filterUnits()); writeNameValuePair(ts, "primitiveUnits", filter->primitiveUnits()); ts << "\n"; // Creating a placeholder filter which is passed to the builder. FloatRect dummyRect; RefPtr<SVGFilter> dummyFilter = SVGFilter::create(AffineTransform(), dummyRect, dummyRect, dummyRect, true); if (auto builder = filter->buildPrimitives(dummyFilter.get())) { if (FilterEffect* lastEffect = builder->lastEffect()) lastEffect->externalRepresentation(ts, indent + 1); } #endif } else if (resource->resourceType() == ClipperResourceType) { RenderSVGResourceClipper* clipper = static_cast<RenderSVGResourceClipper*>(resource); writeNameValuePair(ts, "clipPathUnits", clipper->clipPathUnits()); ts << "\n"; } else if (resource->resourceType() == MarkerResourceType) { RenderSVGResourceMarker* marker = static_cast<RenderSVGResourceMarker*>(resource); writeNameValuePair(ts, "markerUnits", marker->markerUnits()); ts << " [ref at " << marker->referencePoint() << "]"; ts << " [angle="; if (marker->angle() == -1) ts << "auto" << "]\n"; else ts << marker->angle() << "]\n"; } else if (resource->resourceType() == PatternResourceType) { RenderSVGResourcePattern* pattern = static_cast<RenderSVGResourcePattern*>(resource); // Dump final results that are used for rendering. No use in asking SVGPatternElement for its patternUnits(), as it may // link to other patterns using xlink:href, we need to build the full inheritance chain, aka. collectPatternProperties() PatternAttributes attributes; pattern->patternElement().collectPatternAttributes(attributes); writeNameValuePair(ts, "patternUnits", attributes.patternUnits()); writeNameValuePair(ts, "patternContentUnits", attributes.patternContentUnits()); AffineTransform transform = attributes.patternTransform(); if (!transform.isIdentity()) ts << " [patternTransform=" << transform << "]"; ts << "\n"; } else if (resource->resourceType() == LinearGradientResourceType) { RenderSVGResourceLinearGradient* gradient = static_cast<RenderSVGResourceLinearGradient*>(resource); // Dump final results that are used for rendering. No use in asking SVGGradientElement for its gradientUnits(), as it may // link to other gradients using xlink:href, we need to build the full inheritance chain, aka. collectGradientProperties() LinearGradientAttributes attributes; gradient->linearGradientElement().collectGradientAttributes(attributes); writeCommonGradientProperties(ts, attributes.spreadMethod(), attributes.gradientTransform(), attributes.gradientUnits()); ts << " [start=" << gradient->startPoint(attributes) << "] [end=" << gradient->endPoint(attributes) << "]\n"; } else if (resource->resourceType() == RadialGradientResourceType) { RenderSVGResourceRadialGradient* gradient = static_cast<RenderSVGResourceRadialGradient*>(resource); // Dump final results that are used for rendering. No use in asking SVGGradientElement for its gradientUnits(), as it may // link to other gradients using xlink:href, we need to build the full inheritance chain, aka. collectGradientProperties() RadialGradientAttributes attributes; gradient->radialGradientElement().collectGradientAttributes(attributes); writeCommonGradientProperties(ts, attributes.spreadMethod(), attributes.gradientTransform(), attributes.gradientUnits()); FloatPoint focalPoint = gradient->focalPoint(attributes); FloatPoint centerPoint = gradient->centerPoint(attributes); float radius = gradient->radius(attributes); float focalRadius = gradient->focalRadius(attributes); ts << " [center=" << centerPoint << "] [focal=" << focalPoint << "] [radius=" << radius << "] [focalRadius=" << focalRadius << "]\n"; } else ts << "\n"; writeChildren(ts, object, indent); }
AffineTransform AffineTransform::scaled (const float factorX, const float factorY, const float pivotX, const float pivotY) const noexcept { return AffineTransform (factorX * mat00, factorX * mat01, factorX * mat02 + pivotX * (1.0f - factorX), factorY * mat10, factorY * mat11, factorY * mat12 + pivotY * (1.0f - factorY)); }
SVGTransformValue::SVGTransformValue(SVGTransformType type, ConstructionMode mode) : m_type(type) { if (mode == ConstructZeroTransform) m_matrix = AffineTransform(0, 0, 0, 0, 0, 0); }
AffineTransform AffineTransform::shear (float shearX, float shearY) noexcept { return AffineTransform (1.0f, shearX, 0, shearY, 1.0f, 0); }
const AffineTransform AffineTransform::translation (const float dx, const float dy) throw() { return AffineTransform (1.0f, 0, dx, 0, 1.0f, dy); }
AffineTransform AffineTransform::translated (const float dx, const float dy) const noexcept { return AffineTransform (mat00, mat01, mat02 + dx, mat10, mat11, mat12 + dy); }
const AffineTransform AffineTransform::scale (const float factorX, const float factorY) throw() { return AffineTransform (factorX, 0, 0, 0, factorY, 0); }
bool RenderSVGResourceFilter::applyResource(RenderObject* object, RenderStyle*, GraphicsContext*& context, unsigned short resourceMode) { ASSERT(object); ASSERT(context); #ifndef NDEBUG ASSERT(resourceMode == ApplyToDefaultMode); #else UNUSED_PARAM(resourceMode); #endif // Returning false here, to avoid drawings onto the context. We just want to // draw the stored filter output, not the unfiltered object as well. if (m_filter.contains(object)) { FilterData* filterData = m_filter.get(object); if (filterData->builded) return false; delete m_filter.take(object); // Oops, have to rebuild, go through normal code path } OwnPtr<FilterData> filterData(new FilterData); FloatRect targetBoundingBox = object->objectBoundingBox(); SVGFilterElement* filterElement = static_cast<SVGFilterElement*>(node()); filterData->boundaries = filterElement->filterBoundingBox(targetBoundingBox); if (filterData->boundaries.isEmpty()) return false; // Determine absolute transformation matrix for filter. AffineTransform absoluteTransform; SVGImageBufferTools::calculateTransformationToOutermostSVGCoordinateSystem(object, absoluteTransform); if (!absoluteTransform.isInvertible()) return false; // Eliminate shear of the absolute transformation matrix, to be able to produce unsheared tile images for feTile. filterData->shearFreeAbsoluteTransform = AffineTransform(absoluteTransform.xScale(), 0, 0, absoluteTransform.yScale(), absoluteTransform.e(), absoluteTransform.f()); // Determine absolute boundaries of the filter and the drawing region. FloatRect absoluteFilterBoundaries = filterData->shearFreeAbsoluteTransform.mapRect(filterData->boundaries); FloatRect drawingRegion = object->strokeBoundingBox(); drawingRegion.intersect(filterData->boundaries); FloatRect absoluteDrawingRegion = filterData->shearFreeAbsoluteTransform.mapRect(drawingRegion); // Create the SVGFilter object. bool primitiveBoundingBoxMode = filterElement->primitiveUnits() == SVGUnitTypes::SVG_UNIT_TYPE_OBJECTBOUNDINGBOX; filterData->filter = SVGFilter::create(filterData->shearFreeAbsoluteTransform, absoluteDrawingRegion, targetBoundingBox, filterData->boundaries, primitiveBoundingBoxMode); // Create all relevant filter primitives. filterData->builder = buildPrimitives(filterData->filter.get()); if (!filterData->builder) return false; // Calculate the scale factor for the use of filterRes. // Also see http://www.w3.org/TR/SVG/filters.html#FilterEffectsRegion FloatSize scale(1, 1); if (filterElement->hasAttribute(SVGNames::filterResAttr)) { scale.setWidth(filterElement->filterResX() / absoluteFilterBoundaries.width()); scale.setHeight(filterElement->filterResY() / absoluteFilterBoundaries.height()); } if (scale.isEmpty()) return false; // Determine scale factor for filter. The size of intermediate ImageBuffers shouldn't be bigger than kMaxFilterSize. FloatRect tempSourceRect = absoluteDrawingRegion; tempSourceRect.scale(scale.width(), scale.height()); fitsInMaximumImageSize(tempSourceRect.size(), scale); // Set the scale level in SVGFilter. filterData->filter->setFilterResolution(scale); FilterEffect* lastEffect = filterData->builder->lastEffect(); if (!lastEffect) return false; RenderSVGResourceFilterPrimitive::determineFilterPrimitiveSubregion(lastEffect, filterData->filter.get()); FloatRect subRegion = lastEffect->maxEffectRect(); // At least one FilterEffect has a too big image size, // recalculate the effect sizes with new scale factors. if (!fitsInMaximumImageSize(subRegion.size(), scale)) { filterData->filter->setFilterResolution(scale); RenderSVGResourceFilterPrimitive::determineFilterPrimitiveSubregion(lastEffect, filterData->filter.get()); } // If the drawingRegion is empty, we have something like <g filter=".."/>. // Even if the target objectBoundingBox() is empty, we still have to draw the last effect result image in postApplyResource. if (drawingRegion.isEmpty()) { ASSERT(!m_filter.contains(object)); filterData->savedContext = context; m_filter.set(object, filterData.leakPtr()); return false; } absoluteDrawingRegion.scale(scale.width(), scale.height()); OwnPtr<ImageBuffer> sourceGraphic; if (!SVGImageBufferTools::createImageBuffer(absoluteDrawingRegion, absoluteDrawingRegion, sourceGraphic, ColorSpaceLinearRGB)) { ASSERT(!m_filter.contains(object)); filterData->savedContext = context; m_filter.set(object, filterData.leakPtr()); return false; } GraphicsContext* sourceGraphicContext = sourceGraphic->context(); ASSERT(sourceGraphicContext); sourceGraphicContext->translate(-absoluteDrawingRegion.x(), -absoluteDrawingRegion.y()); if (scale.width() != 1 || scale.height() != 1) sourceGraphicContext->scale(scale); sourceGraphicContext->concatCTM(filterData->shearFreeAbsoluteTransform); sourceGraphicContext->clearRect(FloatRect(FloatPoint(), absoluteDrawingRegion.size())); filterData->sourceGraphicBuffer = sourceGraphic.release(); filterData->savedContext = context; context = sourceGraphicContext; ASSERT(!m_filter.contains(object)); m_filter.set(object, filterData.leakPtr()); return true; }
void CanvasPattern::setTransform(SVGMatrixTearOff* transform) { m_patternTransform = transform ? transform->value() : AffineTransform(1, 0, 0, 1, 0, 0); }