Merge branch 'lottie-temp'

This commit is contained in:
Isaac 2024-05-16 23:04:08 +04:00
commit c9a651691a
8 changed files with 444 additions and 290 deletions

View File

@ -6,30 +6,147 @@
#include <LottieCpp/RenderTreeNode.h>
namespace lottie {
namespace {
static void processRenderContentItem(std::shared_ptr<RenderTreeNodeContentItem> const &contentItem, std::optional<CGRect> &effectiveLocalBounds, BezierPathsBoundingBoxContext &bezierPathsBoundingBoxContext) {
for (const auto &shadingVariant : contentItem->shadings) {
CGRect shapeBounds = bezierPathsBoundingBoxParallel(bezierPathsBoundingBoxContext, shadingVariant->explicitPath.value());
if (shadingVariant->stroke) {
shapeBounds = shapeBounds.insetBy(-shadingVariant->stroke->lineWidth / 2.0, -shadingVariant->stroke->lineWidth / 2.0);
if (effectiveLocalBounds) {
effectiveLocalBounds = effectiveLocalBounds->unionWith(shapeBounds);
} else {
effectiveLocalBounds = shapeBounds;
}
} else if (shadingVariant->fill) {
if (effectiveLocalBounds) {
effectiveLocalBounds = effectiveLocalBounds->unionWith(shapeBounds);
} else {
effectiveLocalBounds = shapeBounds;
}
struct TransformedPath {
lottie::BezierPath path;
lottie::CATransform3D transform;
TransformedPath(lottie::BezierPath const &path_, lottie::CATransform3D const &transform_) :
path(path_),
transform(transform_) {
}
};
static std::vector<TransformedPath> collectPaths(std::shared_ptr<lottie::RenderTreeNodeContentItem> item, size_t subItemLimit, lottie::CATransform3D const &parentTransform, bool skipApplyTransform) {
std::vector<TransformedPath> mappedPaths;
//TODO:remove skipApplyTransform
lottie::CATransform3D effectiveTransform = parentTransform;
if (!skipApplyTransform && item->isGroup) {
effectiveTransform = item->transform * effectiveTransform;
}
size_t maxSubitem = std::min(item->subItems.size(), subItemLimit);
if (item->path) {
mappedPaths.emplace_back(item->path.value(), effectiveTransform);
}
for (size_t i = 0; i < maxSubitem; i++) {
auto &subItem = item->subItems[i];
auto subItemPaths = collectPaths(subItem, INT32_MAX, effectiveTransform, false);
for (auto &path : subItemPaths) {
mappedPaths.emplace_back(path.path, path.transform);
}
}
for (const auto &subItem : contentItem->subItems) {
processRenderContentItem(subItem, effectiveLocalBounds, bezierPathsBoundingBoxContext);
return mappedPaths;
}
}
namespace lottie {
static void processRenderContentItem(std::shared_ptr<RenderTreeNodeContentItem> const &contentItem, Vector2D const &globalSize, CATransform3D const &parentTransform, BezierPathsBoundingBoxContext &bezierPathsBoundingBoxContext) {
auto currentTransform = parentTransform;
CATransform3D localTransform = contentItem->transform;
currentTransform = localTransform * currentTransform;
if (!currentTransform.isInvertible()) {
contentItem->renderData.isValid = false;
return;
}
std::optional<CGRect> globalRect;
int drawContentDescendants = 0;
for (const auto &shadingVariant : contentItem->shadings) {
std::vector<lottie::BezierPath> itemPaths;
if (shadingVariant->explicitPath) {
itemPaths = shadingVariant->explicitPath.value();
} else {
auto rawPaths = collectPaths(contentItem, shadingVariant->subItemLimit, lottie::CATransform3D::identity(), true);
for (const auto &rawPath : rawPaths) {
itemPaths.push_back(rawPath.path.copyUsingTransform(rawPath.transform));
}
}
CGRect shapeBounds = bezierPathsBoundingBoxParallel(bezierPathsBoundingBoxContext, itemPaths);
if (shadingVariant->stroke) {
shapeBounds = shapeBounds.insetBy(-shadingVariant->stroke->lineWidth / 2.0, -shadingVariant->stroke->lineWidth / 2.0);
} else if (shadingVariant->fill) {
} else {
continue;
}
drawContentDescendants += 1;
CGRect shapeGlobalBounds = shapeBounds.applyingTransform(currentTransform);
if (globalRect) {
globalRect = globalRect->unionWith(shapeGlobalBounds);
} else {
globalRect = shapeGlobalBounds;
}
}
if (contentItem->isGroup) {
for (const auto &subItem : contentItem->subItems) {
processRenderContentItem(subItem, globalSize, currentTransform, bezierPathsBoundingBoxContext);
if (subItem->renderData.isValid) {
drawContentDescendants += subItem->renderData.drawContentDescendants;
if (globalRect) {
globalRect = globalRect->unionWith(subItem->renderData.globalRect);
} else {
globalRect = subItem->renderData.globalRect;
}
}
}
} else {
for (const auto &subItem : contentItem->subItems) {
subItem->renderData.isValid = false;
}
}
if (!globalRect) {
contentItem->renderData.isValid = false;
return;
}
CGRect integralGlobalRect(
std::floor(globalRect->x),
std::floor(globalRect->y),
std::ceil(globalRect->width + globalRect->x - floor(globalRect->x)),
std::ceil(globalRect->height + globalRect->y - floor(globalRect->y))
);
if (!CGRect(0.0, 0.0, globalSize.x, globalSize.y).intersects(integralGlobalRect)) {
contentItem->renderData.isValid = false;
return;
}
if (integralGlobalRect.width <= 0.0 || integralGlobalRect.height <= 0.0) {
contentItem->renderData.isValid = false;
return;
}
contentItem->renderData.isValid = true;
contentItem->renderData.layer._bounds = CGRect(0.0, 0.0, 0.0, 0.0);
contentItem->renderData.layer._position = Vector2D(0.0, 0.0);
contentItem->renderData.layer._transform = contentItem->transform;
contentItem->renderData.layer._opacity = contentItem->alpha;
contentItem->renderData.layer._masksToBounds = false;
contentItem->renderData.layer._isHidden = false;
contentItem->renderData.globalRect = integralGlobalRect;
contentItem->renderData.globalTransform = currentTransform;
contentItem->renderData.drawContentDescendants = drawContentDescendants;
contentItem->renderData.isInvertedMatte = false;
}
static void processRenderTree(std::shared_ptr<RenderTreeNode> const &node, Vector2D const &globalSize, CATransform3D const &parentTransform, bool isInvertedMask, BezierPathsBoundingBoxContext &bezierPathsBoundingBoxContext) {
@ -58,102 +175,59 @@ static void processRenderTree(std::shared_ptr<RenderTreeNode> const &node, Vecto
return;
}
std::optional<CGRect> effectiveLocalBounds;
double alpha = node->alpha();
int drawContentDescendants = 0;
std::optional<CGRect> globalRect;
if (node->_contentItem) {
processRenderContentItem(node->_contentItem, effectiveLocalBounds, bezierPathsBoundingBoxContext);
processRenderContentItem(node->_contentItem, globalSize, currentTransform, bezierPathsBoundingBoxContext);
if (node->_contentItem->renderData.isValid) {
drawContentDescendants += node->_contentItem->renderData.drawContentDescendants;
globalRect = node->_contentItem->renderData.globalRect;
}
}
bool isInvertedMatte = isInvertedMask;
if (isInvertedMatte) {
effectiveLocalBounds = node->bounds();
CGRect globalBounds = node->bounds().applyingTransform(currentTransform);
if (globalRect) {
globalRect = globalRect->unionWith(globalBounds);
} else {
globalRect = globalBounds;
}
}
if (effectiveLocalBounds && effectiveLocalBounds->empty()) {
effectiveLocalBounds = std::nullopt;
}
std::optional<CGRect> effectiveLocalRect;
if (effectiveLocalBounds.has_value()) {
effectiveLocalRect = effectiveLocalBounds;
}
std::optional<CGRect> subnodesGlobalRect;
bool masksToBounds = node->masksToBounds();
int drawContentDescendants = 0;
for (const auto &item : node->subnodes()) {
processRenderTree(item, globalSize, currentTransform, false, bezierPathsBoundingBoxContext);
if (item->renderData.isValid) {
drawContentDescendants += item->renderData.drawContentDescendants;
if (item->_contentItem) {
drawContentDescendants += 1;
}
if (!item->renderData.localRect.empty()) {
if (effectiveLocalRect.has_value()) {
effectiveLocalRect = effectiveLocalRect->unionWith(item->renderData.localRect);
} else {
effectiveLocalRect = item->renderData.localRect;
}
}
if (subnodesGlobalRect) {
subnodesGlobalRect = subnodesGlobalRect->unionWith(item->renderData.globalRect);
if (globalRect) {
globalRect = globalRect->unionWith(item->renderData.globalRect);
} else {
subnodesGlobalRect = item->renderData.globalRect;
globalRect = item->renderData.globalRect;
}
}
}
if (masksToBounds && effectiveLocalRect.has_value()) {
if (node->bounds().contains(effectiveLocalRect.value())) {
masksToBounds = false;
}
}
std::optional<CGRect> fuzzyGlobalRect;
if (effectiveLocalBounds) {
CGRect effectiveGlobalBounds = effectiveLocalBounds->applyingTransform(currentTransform);
if (fuzzyGlobalRect) {
fuzzyGlobalRect = fuzzyGlobalRect->unionWith(effectiveGlobalBounds);
} else {
fuzzyGlobalRect = effectiveGlobalBounds;
}
}
if (subnodesGlobalRect) {
if (fuzzyGlobalRect) {
fuzzyGlobalRect = fuzzyGlobalRect->unionWith(subnodesGlobalRect.value());
} else {
fuzzyGlobalRect = subnodesGlobalRect;
}
}
if (!fuzzyGlobalRect) {
if (!globalRect) {
node->renderData.isValid = false;
return;
}
CGRect globalRect(
std::floor(fuzzyGlobalRect->x),
std::floor(fuzzyGlobalRect->y),
std::ceil(fuzzyGlobalRect->width + fuzzyGlobalRect->x - floor(fuzzyGlobalRect->x)),
std::ceil(fuzzyGlobalRect->height + fuzzyGlobalRect->y - floor(fuzzyGlobalRect->y))
CGRect integralGlobalRect(
std::floor(globalRect->x),
std::floor(globalRect->y),
std::ceil(globalRect->width + globalRect->x - floor(globalRect->x)),
std::ceil(globalRect->height + globalRect->y - floor(globalRect->y))
);
if (!CGRect(0.0, 0.0, globalSize.x, globalSize.y).intersects(globalRect)) {
if (!CGRect(0.0, 0.0, globalSize.x, globalSize.y).intersects(integralGlobalRect)) {
node->renderData.isValid = false;
return;
}
if (masksToBounds && effectiveLocalBounds) {
CGRect effectiveGlobalBounds = effectiveLocalBounds->applyingTransform(currentTransform);
bool masksToBounds = node->masksToBounds();
if (masksToBounds) {
CGRect effectiveGlobalBounds = node->bounds().applyingTransform(currentTransform);
if (effectiveGlobalBounds.contains(CGRect(0.0, 0.0, globalSize.x, globalSize.y))) {
masksToBounds = false;
}
@ -162,7 +236,7 @@ static void processRenderTree(std::shared_ptr<RenderTreeNode> const &node, Vecto
if (node->mask()) {
processRenderTree(node->mask(), globalSize, currentTransform, node->invertMask(), bezierPathsBoundingBoxContext);
if (node->mask()->renderData.isValid) {
if (!node->mask()->renderData.globalRect.intersects(globalRect)) {
if (!node->mask()->renderData.globalRect.intersects(integralGlobalRect)) {
node->renderData.isValid = false;
return;
}
@ -172,21 +246,22 @@ static void processRenderTree(std::shared_ptr<RenderTreeNode> const &node, Vecto
}
}
CGRect localRect = effectiveLocalRect.value_or(CGRect(0.0, 0.0, 0.0, 0.0)).applyingTransform(localTransform);
if (integralGlobalRect.width <= 0.0 || integralGlobalRect.height <= 0.0) {
node->renderData.isValid = false;
return;
}
node->renderData.isValid = true;
node->renderData.layer._bounds = node->bounds();
node->renderData.layer._position = node->position();
node->renderData.layer._transform = node->transform();
node->renderData.layer._opacity = alpha;
node->renderData.layer._opacity = node->alpha();
node->renderData.layer._masksToBounds = masksToBounds;
node->renderData.layer._isHidden = node->isHidden();
node->renderData.globalRect = globalRect;
node->renderData.localRect = localRect;
node->renderData.globalRect = integralGlobalRect;
node->renderData.globalTransform = currentTransform;
node->renderData.drawsContent = effectiveLocalBounds.has_value();
node->renderData.drawContentDescendants = drawContentDescendants;
node->renderData.isInvertedMatte = isInvertedMatte;
}
@ -195,9 +270,62 @@ static void processRenderTree(std::shared_ptr<RenderTreeNode> const &node, Vecto
namespace {
static void drawLottieContentItem(std::shared_ptr<lottieRendering::Canvas> context, std::shared_ptr<lottie::RenderTreeNodeContentItem> item) {
static void drawLottieContentItem(std::shared_ptr<lottieRendering::Canvas> parentContext, std::shared_ptr<lottie::RenderTreeNodeContentItem> item, double parentAlpha) {
if (!item->renderData.isValid) {
return;
}
float normalizedOpacity = item->renderData.layer.opacity();
double layerAlpha = ((double)normalizedOpacity) * parentAlpha;
if (item->renderData.layer.isHidden() || normalizedOpacity == 0.0f) {
return;
}
parentContext->saveState();
std::shared_ptr<lottieRendering::Canvas> currentContext;
std::shared_ptr<lottieRendering::Canvas> tempContext;
bool needsTempContext = false;
needsTempContext = layerAlpha != 1.0 && item->renderData.drawContentDescendants > 1;
if (needsTempContext) {
auto tempContextValue = parentContext->makeLayer((int)(item->renderData.globalRect.width), (int)(item->renderData.globalRect.height));
tempContext = tempContextValue;
currentContext = tempContextValue;
currentContext->concatenate(lottie::CATransform3D::identity().translated(lottie::Vector2D(-item->renderData.globalRect.x, -item->renderData.globalRect.y)));
currentContext->saveState();
currentContext->concatenate(item->renderData.globalTransform);
} else {
currentContext = parentContext;
}
parentContext->concatenate(lottie::CATransform3D::identity().translated(lottie::Vector2D(item->renderData.layer.position().x, item->renderData.layer.position().y)));
parentContext->concatenate(lottie::CATransform3D::identity().translated(lottie::Vector2D(-item->renderData.layer.bounds().x, -item->renderData.layer.bounds().y)));
parentContext->concatenate(item->renderData.layer.transform());
double renderAlpha = 1.0;
if (tempContext) {
renderAlpha = 1.0;
} else {
renderAlpha = layerAlpha;
}
for (const auto &shading : item->shadings) {
if (shading->explicitPath->empty()) {
std::vector<lottie::BezierPath> itemPaths;
if (shading->explicitPath) {
itemPaths = shading->explicitPath.value();
} else {
auto rawPaths = collectPaths(item, shading->subItemLimit, lottie::CATransform3D::identity(), true);
for (const auto &rawPath : rawPaths) {
itemPaths.push_back(rawPath.path.copyUsingTransform(rawPath.transform));
}
}
if (itemPaths.empty()) {
continue;
}
@ -228,7 +356,7 @@ static void drawLottieContentItem(std::shared_ptr<lottieRendering::Canvas> conte
};
LottiePathItem pathItem;
for (const auto &path : shading->explicitPath.value()) {
for (const auto &path : itemPaths) {
std::optional<lottie::PathElement> previousElement;
for (const auto &element : path.elements()) {
if (previousElement.has_value()) {
@ -304,7 +432,7 @@ static void drawLottieContentItem(std::shared_ptr<lottieRendering::Canvas> conte
dashPattern = shading->stroke->dashPattern;
}
context->strokePath(path, shading->stroke->lineWidth, lineJoin, lineCap, shading->stroke->dashPhase, dashPattern, lottieRendering::Color(solidShading->color.r, solidShading->color.g, solidShading->color.b, solidShading->color.a * solidShading->opacity));
currentContext->strokePath(path, shading->stroke->lineWidth, lineJoin, lineCap, shading->stroke->dashPhase, dashPattern, lottieRendering::Color(solidShading->color.r, solidShading->color.g, solidShading->color.b, solidShading->color.a * solidShading->opacity * renderAlpha));
} else if (shading->stroke->shading->type() == lottie::RenderTreeNodeContentItem::ShadingType::Gradient) {
//TODO:gradient stroke
}
@ -328,7 +456,7 @@ static void drawLottieContentItem(std::shared_ptr<lottieRendering::Canvas> conte
if (shading->fill->shading->type() == lottie::RenderTreeNodeContentItem::ShadingType::Solid) {
lottie::RenderTreeNodeContentItem::SolidShading *solidShading = (lottie::RenderTreeNodeContentItem::SolidShading *)shading->fill->shading.get();
if (solidShading->opacity != 0.0) {
context->fillPath(path, rule, lottieRendering::Color(solidShading->color.r, solidShading->color.g, solidShading->color.b, solidShading->color.a * solidShading->opacity));
currentContext->fillPath(path, rule, lottieRendering::Color(solidShading->color.r, solidShading->color.g, solidShading->color.b, solidShading->color.a * solidShading->opacity * renderAlpha));
}
} else if (shading->fill->shading->type() == lottie::RenderTreeNodeContentItem::ShadingType::Gradient) {
lottie::RenderTreeNodeContentItem::GradientShading *gradientShading = (lottie::RenderTreeNodeContentItem::GradientShading *)shading->fill->shading.get();
@ -337,7 +465,7 @@ static void drawLottieContentItem(std::shared_ptr<lottieRendering::Canvas> conte
std::vector<lottieRendering::Color> colors;
std::vector<double> locations;
for (const auto &color : gradientShading->colors) {
colors.push_back(lottieRendering::Color(color.r, color.g, color.b, color.a * gradientShading->opacity));
colors.push_back(lottieRendering::Color(color.r, color.g, color.b, color.a * gradientShading->opacity * renderAlpha));
}
locations = gradientShading->locations;
@ -347,11 +475,11 @@ static void drawLottieContentItem(std::shared_ptr<lottieRendering::Canvas> conte
switch (gradientShading->gradientType) {
case lottie::GradientType::Linear: {
context->linearGradientFillPath(path, rule, gradient, start, end);
currentContext->linearGradientFillPath(path, rule, gradient, start, end);
break;
}
case lottie::GradientType::Radial: {
context->radialGradientFillPath(path, rule, gradient, start, 0.0, start, start.distanceTo(end));
currentContext->radialGradientFillPath(path, rule, gradient, start, 0.0, start, start.distanceTo(end));
break;
}
default: {
@ -364,8 +492,19 @@ static void drawLottieContentItem(std::shared_ptr<lottieRendering::Canvas> conte
}
for (const auto &subItem : item->subItems) {
drawLottieContentItem(context, subItem);
drawLottieContentItem(currentContext, subItem, renderAlpha);
}
if (tempContext) {
tempContext->restoreState();
parentContext->concatenate(item->renderData.globalTransform.inverted());
parentContext->setAlpha(layerAlpha);
parentContext->draw(tempContext, item->renderData.globalRect);
parentContext->setAlpha(1.0);
}
parentContext->restoreState();
}
static void renderLottieRenderNode(std::shared_ptr<lottie::RenderTreeNode> node, std::shared_ptr<lottieRendering::Canvas> parentContext, lottie::Vector2D const &globalSize, double parentAlpha) {
@ -432,10 +571,8 @@ static void renderLottieRenderNode(std::shared_ptr<lottie::RenderTreeNode> node,
renderAlpha = layerAlpha;
}
currentContext->setAlpha(renderAlpha);
if (node->_contentItem) {
drawLottieContentItem(currentContext, node->_contentItem);
drawLottieContentItem(currentContext, node->_contentItem, renderAlpha);
}
if (node->renderData.isInvertedMatte) {

View File

@ -6,6 +6,7 @@
#include <LottieCpp/CurveVertex.h>
#include <LottieCpp/PathElement.h>
#include <LottieCpp/CGPath.h>
#include <LottieCpp/ShapeAttributes.h>
#include <vector>
@ -126,7 +127,7 @@ public:
public:
BezierPath(std::shared_ptr<BezierPathContents> contents);
private:
public:
std::shared_ptr<BezierPathContents> _contents;
};
@ -144,6 +145,8 @@ public:
CGRect bezierPathsBoundingBox(std::vector<BezierPath> const &paths);
CGRect bezierPathsBoundingBoxParallel(BezierPathsBoundingBoxContext &context, std::vector<BezierPath> const &paths);
std::vector<BezierPath> trimBezierPaths(std::vector<BezierPath> &sourcePaths, double start, double end, double offset, TrimType type);
}
#endif

View File

@ -13,6 +13,82 @@
namespace lottie {
class ProcessedRenderTreeNodeData {
public:
struct LayerParams {
CGRect _bounds;
Vector2D _position;
CATransform3D _transform;
double _opacity;
bool _masksToBounds;
bool _isHidden;
LayerParams(
CGRect bounds_,
Vector2D position_,
CATransform3D transform_,
double opacity_,
bool masksToBounds_,
bool isHidden_
) :
_bounds(bounds_),
_position(position_),
_transform(transform_),
_opacity(opacity_),
_masksToBounds(masksToBounds_),
_isHidden(isHidden_) {
}
CGRect bounds() const {
return _bounds;
}
Vector2D position() const {
return _position;
}
CATransform3D transform() const {
return _transform;
}
double opacity() const {
return _opacity;
}
bool masksToBounds() const {
return _masksToBounds;
}
bool isHidden() const {
return _isHidden;
}
};
ProcessedRenderTreeNodeData() :
isValid(false),
layer(
CGRect(0.0, 0.0, 0.0, 0.0),
Vector2D(0.0, 0.0),
CATransform3D::identity(),
1.0,
false,
false
),
globalRect(CGRect(0.0, 0.0, 0.0, 0.0)),
globalTransform(CATransform3D::identity()),
drawContentDescendants(false),
isInvertedMatte(false) {
}
bool isValid = false;
LayerParams layer;
CGRect globalRect;
CATransform3D globalTransform;
int drawContentDescendants;
bool isInvertedMatte;
};
class RenderableItem {
public:
enum class Type {
@ -345,8 +421,13 @@ public:
public:
bool isGroup = false;
CATransform3D transform = CATransform3D::identity();
double alpha = 0.0;
std::optional<TrimParams> trimParams;
std::optional<BezierPath> path;
std::vector<std::shared_ptr<RenderTreeNodeContentShadingVariant>> shadings;
std::vector<std::shared_ptr<RenderTreeNodeContentItem>> subItems;
ProcessedRenderTreeNodeData renderData;
};
class RenderTreeNodeContentShadingVariant {
@ -362,86 +443,6 @@ public:
size_t subItemLimit = 0;
};
class ProcessedRenderTreeNodeData {
public:
struct LayerParams {
CGRect _bounds;
Vector2D _position;
CATransform3D _transform;
double _opacity;
bool _masksToBounds;
bool _isHidden;
LayerParams(
CGRect bounds_,
Vector2D position_,
CATransform3D transform_,
double opacity_,
bool masksToBounds_,
bool isHidden_
) :
_bounds(bounds_),
_position(position_),
_transform(transform_),
_opacity(opacity_),
_masksToBounds(masksToBounds_),
_isHidden(isHidden_) {
}
CGRect bounds() const {
return _bounds;
}
Vector2D position() const {
return _position;
}
CATransform3D transform() const {
return _transform;
}
double opacity() const {
return _opacity;
}
bool masksToBounds() const {
return _masksToBounds;
}
bool isHidden() const {
return _isHidden;
}
};
ProcessedRenderTreeNodeData() :
isValid(false),
layer(
CGRect(0.0, 0.0, 0.0, 0.0),
Vector2D(0.0, 0.0),
CATransform3D::identity(),
1.0,
false,
false
),
globalRect(CGRect(0.0, 0.0, 0.0, 0.0)),
localRect(CGRect(0.0, 0.0, 0.0, 0.0)),
globalTransform(CATransform3D::identity()),
drawsContent(false),
drawContentDescendants(false),
isInvertedMatte(false) {
}
bool isValid = false;
LayerParams layer;
CGRect globalRect;
CGRect localRect;
CATransform3D globalTransform;
bool drawsContent;
int drawContentDescendants;
bool isInvertedMatte;
};
class RenderTreeNode {
public:
RenderTreeNode(

View File

@ -31,6 +31,25 @@ enum class GradientType: int {
Radial = 2
};
enum class TrimType: int {
Simultaneously = 1,
Individually = 2
};
struct TrimParams {
double start = 0.0;
double end = 0.0;
double offset = 0.0;
TrimType type = TrimType::Simultaneously;
TrimParams(double start_, double end_, double offset_, TrimType type_) :
start(start_),
end(end_),
offset(offset_),
type(type_) {
}
};
}
#endif

View File

@ -437,27 +437,10 @@ public:
std::shared_ptr<RenderTreeNodeContentItem::Stroke> _stroke;
};
struct TrimParams {
double start = 0.0;
double end = 0.0;
double offset = 0.0;
TrimType type = TrimType::Simultaneously;
size_t subItemLimit = 0;
TrimParams(double start_, double end_, double offset_, TrimType type_, size_t subItemLimit_) :
start(start_),
end(end_),
offset(offset_),
type(type_),
subItemLimit(subItemLimit_) {
}
};
class TrimParamsOutput {
public:
TrimParamsOutput(Trim const &trim, size_t subItemLimit) :
TrimParamsOutput(Trim const &trim) :
type(trim.trimType),
subItemLimit(subItemLimit),
start(trim.start.keyframes),
end(trim.end.keyframes),
offset(trim.offset.keyframes) {
@ -485,12 +468,11 @@ public:
double resolvedOffset = fmod(offsetValue, 360.0) / 360.0;
return TrimParams(resolvedStart, resolvedEnd, resolvedOffset, type, subItemLimit);
return TrimParams(resolvedStart, resolvedEnd, resolvedOffset, type);
}
private:
TrimType type;
size_t subItemLimit = 0;
KeyframeInterpolator<Vector1D> start;
double startValue = 0.0;
@ -597,7 +579,7 @@ public:
}
if (hasUpdates) {
resolvedPath = makeRectangleBezierPath(Vector2D(positionValue.x, positionValue.y), Vector2D(sizeValue.x, sizeValue.y), cornerRadiusValue, direction);
ValueInterpolator<BezierPath>::setInplace(makeRectangleBezierPath(Vector2D(positionValue.x, positionValue.y), Vector2D(sizeValue.x, sizeValue.y), cornerRadiusValue, direction), resolvedPath);
}
hasValidData = true;
@ -645,7 +627,7 @@ public:
}
if (hasUpdates) {
resolvedPath = makeEllipseBezierPath(Vector2D(sizeValue.x, sizeValue.y), Vector2D(positionValue.x, positionValue.y), direction);
ValueInterpolator<BezierPath>::setInplace(makeEllipseBezierPath(Vector2D(sizeValue.x, sizeValue.y), Vector2D(positionValue.x, positionValue.y), direction), resolvedPath);
}
hasValidData = true;
@ -732,7 +714,7 @@ public:
}
if (hasUpdates) {
resolvedPath = makeStarBezierPath(Vector2D(positionValue.x, positionValue.y), outerRadiusValue, innerRadiusValue, outerRoundednessValue, innerRoundednessValue, pointsValue, rotationValue, direction);
ValueInterpolator<BezierPath>::setInplace(makeStarBezierPath(Vector2D(positionValue.x, positionValue.y), outerRadiusValue, innerRadiusValue, outerRoundednessValue, innerRoundednessValue, pointsValue, rotationValue, direction), resolvedPath);
}
hasValidData = true;
@ -909,10 +891,6 @@ public:
transform = std::move(transform_);
}
std::shared_ptr<RenderTreeNode> const &renderTree() const {
return _renderTree;
}
private:
std::unique_ptr<PathOutput> path;
std::unique_ptr<TransformOutput> transform;
@ -920,14 +898,19 @@ public:
std::vector<ShadingVariant> shadings;
std::vector<std::shared_ptr<TrimParamsOutput>> trims;
public:
std::vector<std::shared_ptr<ContentItem>> subItems;
std::shared_ptr<RenderTreeNode> _renderTree;
std::shared_ptr<RenderTreeNodeContentItem> _contentItem;
private:
std::vector<TransformedPath> collectPaths(size_t subItemLimit, CATransform3D const &parentTransform, bool skipApplyTransform) {
bool hasTrims(size_t subItemLimit) {
return false;
}
std::vector<TransformedPath> collectPaths(size_t subItemLimit, CATransform3D const &parentTransform, bool skipApplyTransform, bool &hasTrims) {
std::vector<TransformedPath> mappedPaths;
//TODO:remove skipApplyTransform
CATransform3D effectiveTransform = parentTransform;
if (!skipApplyTransform && isGroup && transform) {
effectiveTransform = transform->transform() * effectiveTransform;
@ -935,8 +918,8 @@ public:
size_t maxSubitem = std::min(subItems.size(), subItemLimit);
if (path) {
mappedPaths.emplace_back(*(path->currentPath()), effectiveTransform);
if (_contentItem->path) {
mappedPaths.emplace_back(_contentItem->path.value(), effectiveTransform);
}
for (size_t i = 0; i < maxSubitem; i++) {
@ -947,9 +930,10 @@ public:
currentTrim = trims[0]->trimParams();
}
auto subItemPaths = subItem->collectPaths(INT32_MAX, effectiveTransform, false);
auto subItemPaths = subItem->collectPaths(INT32_MAX, effectiveTransform, false, hasTrims);
if (currentTrim) {
hasTrims = true;
CompoundBezierPath tempPath;
for (auto &path : subItemPaths) {
tempPath.appendPath(path.path.copyUsingTransform(path.transform));
@ -988,25 +972,17 @@ public:
}
void addTrim(Trim const &trim) {
trims.push_back(std::make_shared<TrimParamsOutput>(trim, subItems.size()));
trims.push_back(std::make_shared<TrimParamsOutput>(trim));
}
public:
void initializeRenderChildren() {
_renderTree = std::make_shared<RenderTreeNode>(
CGRect(0.0, 0.0, 0.0, 0.0),
Vector2D(0.0, 0.0),
CATransform3D::identity(),
1.0,
false,
false,
std::vector<std::shared_ptr<RenderTreeNode>>(),
nullptr,
false
);
_contentItem = std::make_shared<RenderTreeNodeContentItem>();
_contentItem->isGroup = isGroup;
_renderTree->_contentItem = std::make_shared<RenderTreeNodeContentItem>();
_renderTree->_contentItem->isGroup = isGroup;
if (path) {
_contentItem->path = *path->currentPath();
}
if (!shadings.empty()) {
for (int i = 0; i < shadings.size(); i++) {
@ -1025,7 +1001,7 @@ public:
}
itemShadingVariant->subItemLimit = shadingVariant.subItemLimit;
_renderTree->_contentItem->shadings.push_back(itemShadingVariant);
_contentItem->shadings.push_back(itemShadingVariant);
}
}
@ -1033,22 +1009,7 @@ public:
std::vector<std::shared_ptr<RenderTreeNode>> subItemNodes;
for (int i = (int)subItems.size() - 1; i >= 0; i--) {
subItems[i]->initializeRenderChildren();
subItemNodes.push_back(subItems[i]->_renderTree);
//_renderTree->_contentItem->subItems.push_back(subItems[i]->_renderTree->_contentItem);
}
if (!subItemNodes.empty()) {
_renderTree->_subnodes.push_back(std::make_shared<RenderTreeNode>(
CGRect(0.0, 0.0, 0.0, 0.0),
Vector2D(0.0, 0.0),
CATransform3D::identity(),
1.0,
false,
false,
subItemNodes,
nullptr,
false
));
_contentItem->subItems.push_back(subItems[i]->_contentItem);
}
}
}
@ -1061,6 +1022,8 @@ public:
if (path) {
path->update(frameTime);
} else {
_contentItem->path = std::nullopt;
}
for (const auto &trim : trims) {
trim->update(frameTime);
@ -1080,15 +1043,15 @@ public:
}
}
void updateChildren(std::optional<TrimParams> parentTrim) {
void updateContents(std::optional<TrimParams> parentTrim) {
CATransform3D containerTransform = CATransform3D::identity();
double containerOpacity = 1.0;
if (transform) {
containerTransform = transform->transform();
containerOpacity = transform->opacity();
}
_renderTree->_transform = containerTransform;
_renderTree->_alpha = containerOpacity;
_contentItem->transform = containerTransform;
_contentItem->alpha = containerOpacity;
for (int i = 0; i < shadings.size(); i++) {
const auto &shadingVariant = shadings[i];
@ -1097,42 +1060,58 @@ public:
continue;
}
CompoundBezierPath compoundPath;
auto paths = collectPaths(shadingVariant.subItemLimit, CATransform3D::identity(), true);
for (const auto &path : paths) {
compoundPath.appendPath(path.path.copyUsingTransform(path.transform));
}
//std::optional<TrimParams> currentTrim = parentTrim;
//TODO:investigate
/*if (!trims.empty()) {
currentTrim = trims[0];
}*/
bool hasTrims = false;
if (parentTrim) {
CompoundBezierPath compoundPath;
hasTrims = true;
auto paths = collectPaths(shadingVariant.subItemLimit, CATransform3D::identity(), true, hasTrims);
for (const auto &path : paths) {
compoundPath.appendPath(path.path.copyUsingTransform(path.transform));
}
compoundPath = trimCompoundPath(compoundPath, parentTrim->start, parentTrim->end, parentTrim->offset, parentTrim->type);
std::vector<BezierPath> resultPaths;
for (const auto &path : compoundPath.paths) {
resultPaths.push_back(path);
}
_contentItem->shadings[i]->explicitPath = resultPaths;
} else {
CompoundBezierPath compoundPath;
auto paths = collectPaths(shadingVariant.subItemLimit, CATransform3D::identity(), true, hasTrims);
for (const auto &path : paths) {
compoundPath.appendPath(path.path.copyUsingTransform(path.transform));
}
std::vector<BezierPath> resultPaths;
for (const auto &path : compoundPath.paths) {
resultPaths.push_back(path);
}
if (hasTrims) {
_contentItem->shadings[i]->explicitPath = resultPaths;
} else {
_contentItem->shadings[i]->explicitPath = std::nullopt;
_contentItem->shadings[i]->explicitPath = resultPaths;
}
}
std::vector<BezierPath> resultPaths;
for (const auto &path : compoundPath.paths) {
resultPaths.push_back(path);
}
_renderTree->_contentItem->shadings[i]->explicitPath = resultPaths;
}
if (isGroup && !subItems.empty()) {
for (int i = (int)subItems.size() - 1; i >= 0; i--) {
std::optional<TrimParams> childTrim = parentTrim;
for (const auto &trim : trims) {
if (i < (int)trim->trimParams().subItemLimit) {
//TODO:allow combination
//assert(!parentTrim);
childTrim = trim->trimParams();
}
//TODO:allow combination
//assert(!parentTrim);
childTrim = trim->trimParams();
}
subItems[i]->updateChildren(childTrim);
subItems[i]->updateContents(childTrim);
}
}
}
@ -1229,7 +1208,14 @@ private:
case ShapeType::Trim: {
Trim const &trim = *((Trim *)item.get());
itemTree->addTrim(trim);
auto groupItem = std::make_shared<ContentItem>();
groupItem->isGroup = true;
for (const auto &subItem : itemTree->subItems) {
groupItem->addSubItem(subItem);
}
groupItem->addTrim(trim);
itemTree->subItems.clear();
itemTree->addSubItem(groupItem);
break;
}
@ -1306,7 +1292,7 @@ void ShapeCompositionLayer::displayContentsWithFrame(double frame, bool forceUpd
_frameTime = frame;
_frameTimeInitialized = true;
_contentTree->itemTree->updateFrame(_frameTime);
_contentTree->itemTree->updateChildren(std::nullopt);
_contentTree->itemTree->updateContents(std::nullopt);
}
std::shared_ptr<RenderTreeNode> ShapeCompositionLayer::renderTreeNode() {
@ -1314,12 +1300,26 @@ std::shared_ptr<RenderTreeNode> ShapeCompositionLayer::renderTreeNode() {
_frameTime = 0.0;
_frameTimeInitialized = true;
_contentTree->itemTree->updateFrame(_frameTime);
_contentTree->itemTree->updateChildren(std::nullopt);
_contentTree->itemTree->updateContents(std::nullopt);
}
if (!_renderTreeNode) {
_contentRenderTreeNode = std::make_shared<RenderTreeNode>(
CGRect(0.0, 0.0, 0.0, 0.0),
Vector2D(0.0, 0.0),
CATransform3D::identity(),
1.0,
false,
false,
std::vector<std::shared_ptr<RenderTreeNode>>(),
nullptr,
false
);
_contentRenderTreeNode->_contentItem = _contentTree->itemTree->_contentItem;
std::vector<std::shared_ptr<RenderTreeNode>> subnodes;
subnodes.push_back(_contentTree->itemTree->renderTree());
//subnodes.push_back(_contentTree->itemTree->renderTree());
subnodes.push_back(_contentRenderTreeNode);
std::shared_ptr<RenderTreeNode> maskNode;
bool invertMask = false;
@ -1351,12 +1351,12 @@ void ShapeCompositionLayer::updateRenderTree() {
_matteLayer->updateRenderTree();
}
_contentTree->itemTree->renderTree()->_bounds = _contentsLayer->bounds();
_contentTree->itemTree->renderTree()->_position = _contentsLayer->position();
_contentTree->itemTree->renderTree()->_transform = _contentsLayer->transform();
_contentTree->itemTree->renderTree()->_alpha = _contentsLayer->opacity();
_contentTree->itemTree->renderTree()->_masksToBounds = _contentsLayer->masksToBounds();
_contentTree->itemTree->renderTree()->_isHidden = _contentsLayer->isHidden();
_contentRenderTreeNode->_bounds = _contentsLayer->bounds();
_contentRenderTreeNode->_position = _contentsLayer->position();
_contentRenderTreeNode->_transform = _contentsLayer->transform();
_contentRenderTreeNode->_alpha = _contentsLayer->opacity();
_contentRenderTreeNode->_masksToBounds = _contentsLayer->masksToBounds();
_contentRenderTreeNode->_isHidden = _contentsLayer->isHidden();
assert(position() == Vector2D::Zero());
assert(transform().isIdentity());

View File

@ -27,6 +27,7 @@ private:
bool _frameTimeInitialized = false;
std::shared_ptr<RenderTreeNode> _renderTreeNode;
std::shared_ptr<RenderTreeNode> _contentRenderTreeNode;
};
}

View File

@ -8,11 +8,6 @@
namespace lottie {
enum class TrimType: int {
Simultaneously = 1,
Individually = 2
};
/// An item that defines trim
class Trim: public ShapeItem {
public:

View File

@ -65,9 +65,7 @@
result.layer.isHidden = node->renderData.layer._isHidden;
result.globalRect = CGRectMake(node->renderData.globalRect.x, node->renderData.globalRect.y, node->renderData.globalRect.width, node->renderData.globalRect.height);
result.localRect = CGRectMake(node->renderData.localRect.x, node->renderData.localRect.y, node->renderData.localRect.width, node->renderData.localRect.height);
result.globalTransform = lottie::nativeTransform(node->renderData.globalTransform);
result.drawsContent = node->renderData.drawsContent;
result.hasSimpleContents = node->renderData.drawContentDescendants <= 1;
result.drawContentDescendants = node->renderData.drawContentDescendants;
result.isInvertedMatte = node->renderData.isInvertedMatte;