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loader/lotte: ++clean code

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Hermet Park 2023-09-07 23:24:09 +09:00 • committed by Hermet Park
parent 357f4d1518
commit e14e108d4a
2 changed files with 126 additions and 132 deletions
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256
src/loaders/lottie/tvgLottieBuilder.cpp
View file

@ -31,8 +31,9 @@
/* Internal Class Implementation */
/************************************************************************/
struct LottieModifier
struct RenderContext
{
Shape* propagator = nullptr;
Shape* merging = nullptr; //merging shapes if possible (if shapes have same properties)
float roundness = 0.0f;
@ -50,16 +51,26 @@ struct LottieModifier
bool valid = false;
} repeater;
LottieModifier() = default;
LottieModifier(const LottieModifier& rhs)
RenderContext()
{
propagator = Shape::gen().release();
}
~RenderContext()
{
delete(propagator);
}
RenderContext(const RenderContext& rhs)
{
propagator = rhs.propagator ? static_cast<Shape*>(rhs.propagator->duplicate()) : Shape::gen().release();
repeater = rhs.repeater;
roundness = rhs.roundness;
}
};
static void _updateChildren(LottieGroup* parent, int32_t frameNo, Shape* propagtor, LottieModifier& modifier);
static void _updateChildren(LottieGroup* parent, int32_t frameNo, RenderContext& ctx);
static void _updateLayer(LottieLayer* root, LottieLayer* layer, int32_t frameNo);
static bool _buildPrecomp(LottieComposition* comp, LottieGroup* parent);
@ -67,26 +78,18 @@ static bool _buildPrecomp(LottieComposition* comp, LottieGroup* parent);
static void _rotateY(Matrix* m, float degree)
{
if (degree == 0.0f) return;
auto radian = degree / 180.0f * M_PI;
auto cosVal = cosf(radian);
auto sinVal = sinf(radian);
m->e11 = cosVal;
m->e31 = -sinVal;
m->e11 = cosf(radian);
m->e31 = -sinf(radian);
}
static void _rotateX(Matrix* m, float degree)
{
if (degree == 0.0f) return;
auto radian = degree / 180.0f * M_PI;
auto cosVal = cosf(radian);
auto sinVal = sinf(radian);
m->e22 = cosVal;
m->e32 = -sinVal;
m->e22 = cosf(radian);
m->e32 = -sinf(radian);
}
@ -151,23 +154,23 @@ static void _updateTransform(LottieLayer* layer, int32_t frameNo)
}
static void _updateTransform(LottieTransform* transform, int32_t frameNo, Paint* propagtor, LottieModifier& modifier)
static void _updateTransform(LottieTransform* transform, int32_t frameNo, RenderContext& ctx)
{
if (!transform) return;
modifier.merging = nullptr;
ctx.merging = nullptr;
Matrix matrix;
uint8_t opacity;
if (!_updateTransform(transform, frameNo, false, matrix, opacity)) return;
auto pmatrix = P(propagtor)->transform();
propagtor->transform(pmatrix ? mathMultiply(pmatrix, &matrix) : matrix);
propagtor->opacity(opacity);
auto pmatrix = PP(ctx.propagator)->transform();
ctx.propagator->transform(pmatrix ? mathMultiply(pmatrix, &matrix) : matrix);
ctx.propagator->opacity(opacity);
}
static void _updateGroup(LottieGroup* parent, LottieGroup* group, int32_t frameNo, Shape* propagtor, LottieModifier& modifier)
static void _updateGroup(LottieGroup* parent, LottieGroup* group, int32_t frameNo, RenderContext& ctx)
{
//Prepare render data
group->scene = parent->scene;
@ -175,97 +178,92 @@ static void _updateGroup(LottieGroup* parent, LottieGroup* group, int32_t frameN
auto opacity = group->opacity(frameNo);
if (opacity == 0) return;
if (group->transform) {
TVGERR("LOTTIE", "group transform is not working!");
#if 0
Matrix matrix;
_updateTransform(group->transform, frameNo, false, matrix, opacity);
auto pmatrix = P((Paint*)group->scene)->transform();
group->scene->transform(pmatrix ? mathMultiply(pmatrix, &matrix) : matrix);
if (opacity < 255) group->scene->opacity(MULTIPLY(opacity, group->scene->opacity()));
#endif
}
//TODO: move transform to layer.
if (group->transform) TVGERR("LOTTIE", "group transform is not working?!");
auto modifier2 = modifier;
_updateChildren(group, frameNo, propagtor, modifier2);
auto ctx2 = ctx;
_updateChildren(group, frameNo, ctx2);
}
static void _updateFill(LottieSolidFill* fill, int32_t frameNo, Shape* propagtor, LottieModifier& modifier)
static void _updateFill(LottieSolidFill* fill, int32_t frameNo, RenderContext& ctx)
{
//TODO: Skip if property has not been modified actually.
modifier.merging = nullptr;
ctx.merging = nullptr;
auto color = fill->color(frameNo);
propagtor->fill(color.rgb[0], color.rgb[1], color.rgb[2], fill->opacity(frameNo));
propagtor->fill(fill->rule);
ctx.propagator->fill(color.rgb[0], color.rgb[1], color.rgb[2], fill->opacity(frameNo));
ctx.propagator->fill(fill->rule);
if (ctx.propagator->strokeWidth() > 0) ctx.propagator->order(true);
}
static void _updateStroke(LottieStroke* stroke, int32_t frameNo, Shape* propagtor)
static void _updateStroke(LottieStroke* stroke, int32_t frameNo, RenderContext& ctx)
{
propagtor->stroke(stroke->width(frameNo));
propagtor->stroke(stroke->cap);
propagtor->stroke(stroke->join);
propagtor->strokeMiterlimit(stroke->miterLimit);
ctx.propagator->stroke(stroke->width(frameNo));
ctx.propagator->stroke(stroke->cap);
ctx.propagator->stroke(stroke->join);
ctx.propagator->strokeMiterlimit(stroke->miterLimit);
if (stroke->dashattr) {
float dashes[2];
dashes[0] = stroke->dashSize(frameNo);
dashes[1] = dashes[0] + stroke->dashGap(frameNo);
P(propagtor)->strokeDash(dashes, 2, stroke->dashOffset(frameNo));
P(ctx.propagator)->strokeDash(dashes, 2, stroke->dashOffset(frameNo));
} else {
propagtor->stroke(nullptr, 0);
ctx.propagator->stroke(nullptr, 0);
}
}
static void _updateStroke(LottieSolidStroke* stroke, int32_t frameNo, Shape* propagtor, LottieModifier& modifier)
static void _updateStroke(LottieSolidStroke* stroke, int32_t frameNo, RenderContext& ctx)
{
modifier.merging = nullptr;
ctx.merging = nullptr;
auto color = stroke->color(frameNo);
propagtor->stroke(color.rgb[0], color.rgb[1], color.rgb[2], stroke->opacity(frameNo));
_updateStroke(static_cast<LottieStroke*>(stroke), frameNo, propagtor);
ctx.propagator->stroke(color.rgb[0], color.rgb[1], color.rgb[2], stroke->opacity(frameNo));
_updateStroke(static_cast<LottieStroke*>(stroke), frameNo, ctx);
}
static void _updateStroke(LottieGradientStroke* stroke, int32_t frameNo, Shape* propagtor, LottieModifier& modifier)
static void _updateStroke(LottieGradientStroke* stroke, int32_t frameNo, RenderContext& ctx)
{
modifier.merging = nullptr;
propagtor->stroke(unique_ptr<Fill>(stroke->fill(frameNo)));
_updateStroke(static_cast<LottieStroke*>(stroke), frameNo, propagtor);
ctx.merging = nullptr;
ctx.propagator->stroke(unique_ptr<Fill>(stroke->fill(frameNo)));
_updateStroke(static_cast<LottieStroke*>(stroke), frameNo, ctx);
}
static Shape* _updateFill(LottieGradientFill* fill, int32_t frameNo, Shape* propagtor, LottieModifier& modifier)
static Shape* _updateFill(LottieGradientFill* fill, int32_t frameNo, RenderContext& ctx)
{
modifier.merging = nullptr;
ctx.merging = nullptr;
//TODO: reuse the fill instance?
propagtor->fill(unique_ptr<Fill>(fill->fill(frameNo)));
propagtor->fill(fill->rule);
ctx.propagator->fill(unique_ptr<Fill>(fill->fill(frameNo)));
ctx.propagator->fill(fill->rule);
if (ctx.propagator->strokeWidth() > 0) ctx.propagator->order(true);
return nullptr;
}
static Shape* _draw(LottieGroup* parent, int32_t frameNo, Shape* propagtor, LottieModifier& modifier)
static Shape* _draw(LottieGroup* parent, int32_t frameNo, RenderContext& ctx)
{
if (modifier.merging) return modifier.merging;
if (ctx.merging) return ctx.merging;
auto shape = cast<Shape>(propagtor->duplicate());
modifier.merging = shape.get();
auto shape = cast<Shape>(ctx.propagator->duplicate());
ctx.merging = shape.get();
parent->scene->push(std::move(shape));
return modifier.merging;
return ctx.merging;
}
//OPTIMIZE: path?
static void _repeat(LottieGroup* parent, int32_t frameNo, Shape* propagtor, unique_ptr<Shape> path, LottieModifier& modifier)
static void _repeat(LottieGroup* parent, int32_t frameNo, unique_ptr<Shape> path, RenderContext& ctx)
{
auto& repeater = modifier.repeater;
auto& repeater = ctx.repeater;
Array<Shape*> shapes;
shapes.reserve(repeater.cnt);
@ -273,7 +271,7 @@ static void _repeat(LottieGroup* parent, int32_t frameNo, Shape* propagtor, uniq
for (int i = 0; i < repeater.cnt; ++i) {
auto multiplier = repeater.offset + static_cast<float>(i);
auto shape = static_cast<Shape*>(propagtor->duplicate());
auto shape = static_cast<Shape*>(ctx.propagator->duplicate());
P(shape)->rs.path = P(path.get())->rs.path;
auto opacity = repeater.interpOpacity ? mathLerp<uint8_t>(repeater.startOpacity, repeater.endOpacity, static_cast<float>(i + 1) / repeater.cnt) : repeater.startOpacity;
@ -289,7 +287,7 @@ static void _repeat(LottieGroup* parent, int32_t frameNo, Shape* propagtor, uniq
auto pm = PP(shape)->transform();
shape->transform(pm ? mathMultiply(&m, pm) : m);
if (modifier.roundness > 1.0f && P(shape)->rs.stroke) {
if (ctx.roundness > 1.0f && P(shape)->rs.stroke) {
TVGERR("LOTTIE", "FIXME: Path roundesss should be applied properly!");
P(shape)->rs.stroke->join = StrokeJoin::Round;
}
@ -310,59 +308,59 @@ static void _repeat(LottieGroup* parent, int32_t frameNo, Shape* propagtor, uniq
}
static void _updateRect(LottieGroup* parent, LottieRect* rect, int32_t frameNo, Shape* propagtor, LottieModifier& modifier)
static void _updateRect(LottieGroup* parent, LottieRect* rect, int32_t frameNo, RenderContext& ctx)
{
auto position = rect->position(frameNo);
auto size = rect->size(frameNo);
auto roundness = rect->radius(frameNo);
if (modifier.roundness > roundness) roundness = modifier.roundness;
if (ctx.roundness > roundness) roundness = ctx.roundness;
if (roundness > 0.0f) {
if (roundness > size.x * 0.5f) roundness = size.x * 0.5f;
if (roundness > size.y * 0.5f) roundness = size.y * 0.5f;
}
if (modifier.repeater.valid) {
if (ctx.repeater.valid) {
auto path = Shape::gen();
path->appendRect(position.x - size.x * 0.5f, position.y - size.y * 0.5f, size.x, size.y, roundness, roundness);
_repeat(parent, frameNo, propagtor, std::move(path), modifier);
_repeat(parent, frameNo, std::move(path), ctx);
} else {
auto merging = _draw(parent, frameNo, propagtor, modifier);
auto merging = _draw(parent, frameNo, ctx);
merging->appendRect(position.x - size.x * 0.5f, position.y - size.y * 0.5f, size.x, size.y, roundness, roundness);
}
}
static void _updateEllipse(LottieGroup* parent, LottieEllipse* ellipse, int32_t frameNo, Shape* propagtor, LottieModifier& modifier)
static void _updateEllipse(LottieGroup* parent, LottieEllipse* ellipse, int32_t frameNo, RenderContext& ctx)
{
auto position = ellipse->position(frameNo);
auto size = ellipse->size(frameNo);
if (modifier.repeater.valid) {
if (ctx.repeater.valid) {
auto path = Shape::gen();
path->appendCircle(position.x, position.y, size.x * 0.5f, size.y * 0.5f);
_repeat(parent, frameNo, propagtor, std::move(path), modifier);
_repeat(parent, frameNo, std::move(path), ctx);
} else {
auto merging = _draw(parent, frameNo, propagtor, modifier);
auto merging = _draw(parent, frameNo, ctx);
merging->appendCircle(position.x, position.y, size.x * 0.5f, size.y * 0.5f);
}
}
static void _updatePath(LottieGroup* parent, LottiePath* path, int32_t frameNo, Shape* propagtor, LottieModifier& modifier)
static void _updatePath(LottieGroup* parent, LottiePath* path, int32_t frameNo, RenderContext& ctx)
{
if (modifier.repeater.valid) {
if (ctx.repeater.valid) {
auto p = Shape::gen();
path->pathset(frameNo, P(p)->rs.path.cmds, P(p)->rs.path.pts);
_repeat(parent, frameNo, propagtor, std::move(p), modifier);
_repeat(parent, frameNo, std::move(p), ctx);
} else {
auto merging = _draw(parent, frameNo, propagtor, modifier);
auto merging = _draw(parent, frameNo, ctx);
if (path->pathset(frameNo, P(merging)->rs.path.cmds, P(merging)->rs.path.pts)) {
P(merging)->update(RenderUpdateFlag::Path);
}
if (modifier.roundness > 1.0f && P(merging)->rs.stroke) {
if (ctx.roundness > 1.0f && P(merging)->rs.stroke) {
TVGERR("LOTTIE", "FIXME: Path roundesss should be applied properly!");
P(merging)->rs.stroke->join = StrokeJoin::Round;
}
@ -548,7 +546,7 @@ static void _updatePolygon(LottieGroup* parent, LottiePolyStar* star, Matrix* tr
}
static void _updatePolystar(LottieGroup* parent, LottiePolyStar* star, int32_t frameNo, Shape* propagtor, LottieModifier& modifier)
static void _updatePolystar(LottieGroup* parent, LottiePolyStar* star, int32_t frameNo, RenderContext& ctx)
{
//Optimize: Can we skip the individual coords transform?
Matrix matrix;
@ -560,13 +558,13 @@ static void _updatePolystar(LottieGroup* parent, LottiePolyStar* star, int32_t f
auto identity = mathIdentity((const Matrix*)&matrix);
if (modifier.repeater.valid) {
if (ctx.repeater.valid) {
auto p = Shape::gen();
if (star->type == LottiePolyStar::Star) _updateStar(parent, star, identity ? nullptr : &matrix, frameNo, p.get());
else _updatePolygon(parent, star, identity ? nullptr : &matrix, frameNo, p.get());
_repeat(parent, frameNo, propagtor, std::move(p), modifier);
_repeat(parent, frameNo, std::move(p), ctx);
} else {
auto merging = _draw(parent, frameNo, propagtor, modifier);
auto merging = _draw(parent, frameNo, ctx);
if (star->type == LottiePolyStar::Star) _updateStar(parent, star, identity ? nullptr : &matrix, frameNo, merging);
else _updatePolygon(parent, star, identity ? nullptr : &matrix, frameNo, merging);
P(merging)->update(RenderUpdateFlag::Path);
@ -574,7 +572,7 @@ static void _updatePolystar(LottieGroup* parent, LottiePolyStar* star, int32_t f
}
static void _updateImage(LottieGroup* parent, LottieImage* image, int32_t frameNo, Paint* propagtor)
static void _updateImage(LottieGroup* parent, LottieImage* image, int32_t frameNo, RenderContext& ctx)
{
auto picture = image->picture;
@ -587,11 +585,11 @@ static void _updateImage(LottieGroup* parent, LottieImage* image, int32_t frameN
}
}
if (propagtor) {
if (auto matrix = P(propagtor)->transform()) {
if (ctx.propagator) {
if (auto matrix = PP(ctx.propagator)->transform()) {
picture->transform(*matrix);
}
picture->opacity(propagtor->opacity());
picture->opacity(ctx.propagator->opacity());
}
//TODO: remove duplicate.
@ -601,39 +599,39 @@ static void _updateImage(LottieGroup* parent, LottieImage* image, int32_t frameN
}
static void _updateRoundedCorner(LottieRoundedCorner* roundedCorner, int32_t frameNo, LottieModifier& modifier)
static void _updateRoundedCorner(LottieRoundedCorner* roundedCorner, int32_t frameNo, RenderContext& ctx)
{
auto roundness = roundedCorner->radius(frameNo);
if (modifier.roundness < roundness) modifier.roundness = roundness;
if (ctx.roundness < roundness) ctx.roundness = roundness;
}
static void _updateRepeater(LottieRepeater* repeater, int32_t frameNo, LottieModifier& modifier)
static void _updateRepeater(LottieRepeater* repeater, int32_t frameNo, RenderContext& ctx)
{
modifier.repeater.cnt = repeater->copies(frameNo);
modifier.repeater.offset = repeater->offset(frameNo);
modifier.repeater.position = repeater->position(frameNo);
modifier.repeater.anchor = repeater->anchor(frameNo);
modifier.repeater.scale = repeater->scale(frameNo);
modifier.repeater.rotation = repeater->rotation(frameNo);
modifier.repeater.startOpacity = repeater->startOpacity(frameNo);
modifier.repeater.endOpacity = repeater->endOpacity(frameNo);
modifier.repeater.inorder = repeater->inorder;
modifier.repeater.interpOpacity = (modifier.repeater.startOpacity == modifier.repeater.endOpacity) ? false : true;
modifier.repeater.valid = true;
ctx.repeater.cnt = repeater->copies(frameNo);
ctx.repeater.offset = repeater->offset(frameNo);
ctx.repeater.position = repeater->position(frameNo);
ctx.repeater.anchor = repeater->anchor(frameNo);
ctx.repeater.scale = repeater->scale(frameNo);
ctx.repeater.rotation = repeater->rotation(frameNo);
ctx.repeater.startOpacity = repeater->startOpacity(frameNo);
ctx.repeater.endOpacity = repeater->endOpacity(frameNo);
ctx.repeater.inorder = repeater->inorder;
ctx.repeater.interpOpacity = (ctx.repeater.startOpacity == ctx.repeater.endOpacity) ? false : true;
ctx.repeater.valid = true;
modifier.merging = nullptr;
ctx.merging = nullptr;
}
static void _updateTrimpath(LottieTrimpath* trimpath, int32_t frameNo, Shape* propagtor)
static void _updateTrimpath(LottieTrimpath* trimpath, int32_t frameNo, RenderContext& ctx)
{
float begin, end;
trimpath->segment(frameNo, begin, end);
if (P(propagtor)->rs.stroke) {
auto pbegin = P(propagtor)->rs.stroke->trim.begin;
auto pend = P(propagtor)->rs.stroke->trim.end;
if (P(ctx.propagator)->rs.stroke) {
auto pbegin = P(ctx.propagator)->rs.stroke->trim.begin;
auto pend = P(ctx.propagator)->rs.stroke->trim.end;
auto length = fabsf(pend - pbegin);
begin = (length * begin) + pbegin;
end = (length * end) + pbegin;
@ -643,81 +641,77 @@ static void _updateTrimpath(LottieTrimpath* trimpath, int32_t frameNo, Shape* pr
TVGERR("LOTTIE", "TODO: Individual Trimpath");
}
P(propagtor)->strokeTrim(begin, end);
P(ctx.propagator)->strokeTrim(begin, end);
}
static void _updateChildren(LottieGroup* parent, int32_t frameNo, Shape* propagtor, LottieModifier& modifier)
static void _updateChildren(LottieGroup* parent, int32_t frameNo, RenderContext& ctx)
{
if (parent->children.empty()) return;
//inherits the parent's shape properties.
propagtor = propagtor ? static_cast<Shape*>(propagtor->duplicate()) : Shape::gen().release();
//Draw the parent shapes first
for (auto child = parent->children.end() - 1; child >= parent->children.data; --child) {
//TODO: Polymorphsim?
switch ((*child)->type) {
case LottieObject::Group: {
_updateGroup(parent, static_cast<LottieGroup*>(*child), frameNo, propagtor, modifier);
_updateGroup(parent, static_cast<LottieGroup*>(*child), frameNo, ctx);
break;
}
case LottieObject::Transform: {
_updateTransform(static_cast<LottieTransform*>(*child), frameNo, propagtor, modifier);
_updateTransform(static_cast<LottieTransform*>(*child), frameNo, ctx);
break;
}
case LottieObject::SolidFill: {
_updateFill(static_cast<LottieSolidFill*>(*child), frameNo, propagtor, modifier);
_updateFill(static_cast<LottieSolidFill*>(*child), frameNo, ctx);
break;
}
case LottieObject::SolidStroke: {
_updateStroke(static_cast<LottieSolidStroke*>(*child), frameNo, propagtor, modifier);
_updateStroke(static_cast<LottieSolidStroke*>(*child), frameNo, ctx);
break;
}
case LottieObject::GradientFill: {
_updateFill(static_cast<LottieGradientFill*>(*child), frameNo, propagtor, modifier);
_updateFill(static_cast<LottieGradientFill*>(*child), frameNo, ctx);
break;
}
case LottieObject::GradientStroke: {
_updateStroke(static_cast<LottieGradientStroke*>(*child), frameNo, propagtor, modifier);
_updateStroke(static_cast<LottieGradientStroke*>(*child), frameNo, ctx);
break;
}
case LottieObject::Rect: {
_updateRect(parent, static_cast<LottieRect*>(*child), frameNo, propagtor, modifier);
_updateRect(parent, static_cast<LottieRect*>(*child), frameNo, ctx);
break;
}
case LottieObject::Ellipse: {
_updateEllipse(parent, static_cast<LottieEllipse*>(*child), frameNo, propagtor, modifier);
_updateEllipse(parent, static_cast<LottieEllipse*>(*child), frameNo, ctx);
break;
}
case LottieObject::Path: {
_updatePath(parent, static_cast<LottiePath*>(*child), frameNo, propagtor, modifier);
_updatePath(parent, static_cast<LottiePath*>(*child), frameNo, ctx);
break;
}
case LottieObject::Polystar: {
_updatePolystar(parent, static_cast<LottiePolyStar*>(*child), frameNo, propagtor, modifier);
_updatePolystar(parent, static_cast<LottiePolyStar*>(*child), frameNo, ctx);
break;
}
case LottieObject::Image: {
_updateImage(parent, static_cast<LottieImage*>(*child), frameNo, propagtor);
_updateImage(parent, static_cast<LottieImage*>(*child), frameNo, ctx);
break;
}
case LottieObject::Trimpath: {
_updateTrimpath(static_cast<LottieTrimpath*>(*child), frameNo, propagtor);
_updateTrimpath(static_cast<LottieTrimpath*>(*child), frameNo, ctx);
break;
}
case LottieObject::Repeater: {
_updateRepeater(static_cast<LottieRepeater*>(*child), frameNo, modifier);
_updateRepeater(static_cast<LottieRepeater*>(*child), frameNo, ctx);
break;
}
case LottieObject::RoundedCorner: {
_updateRoundedCorner(static_cast<LottieRoundedCorner*>(*child), frameNo, modifier);
_updateRoundedCorner(static_cast<LottieRoundedCorner*>(*child), frameNo, ctx);
break;
}
default: break;
}
}
delete (propagtor);
}
@ -811,8 +805,8 @@ static void _updateLayer(LottieLayer* root, LottieLayer* layer, int32_t frameNo)
break;
}
default: {
LottieModifier modifier;
_updateChildren(layer, rFrameNo, nullptr, modifier);
RenderContext ctx;
_updateChildren(layer, rFrameNo, ctx);
break;
}
}

2
src/loaders/lottie/tvgLottieParser.cpp
View file

@ -504,7 +504,7 @@ LottieTransform* LottieParser::parseTransform(bool ddd)
if (ddd) {
transform->rotationEx = new LottieTransform::RotationEx;
TVGLOG("LOTTIE", "3D transform(ddd) is not 100% compatible.");
TVGLOG("LOTTIE", "3D transform(ddd) is not totally compatible.");
}
while (auto key = nextObjectKey()) {