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loader/lottie: do not draw zero size content

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skip rendering by setting opacity zero, if the scale factor is zero.
This commit is contained in:
Hermet Park 2023-09-12 12:30:05 +09:00
parent 46d831ead7
commit 3752ad93b3
1 changed files with 6 additions and 4 deletions
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10
src/loaders/lottie/tvgLottieBuilder.cpp
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@ -125,7 +125,9 @@ static bool _updateTransform(LottieTransform* transform, int32_t frameNo, bool a
auto anchor = transform->anchor(frameNo); auto anchor = transform->anchor(frameNo);
mathTranslateR(&matrix, -anchor.x, -anchor.y); mathTranslateR(&matrix, -anchor.x, -anchor.y);
opacity = transform->opacity(frameNo); //invisible just in case.
if (scale.x == 0.0f || scale.y == 0.0f) opacity = 0;
else opacity = transform->opacity(frameNo);
return true; return true;
} }
@ -779,20 +781,20 @@ static void _updateLayer(LottieLayer* root, LottieLayer* layer, int32_t frameNo)
{ {
//visibility //visibility
if (frameNo < layer->inFrame || frameNo > layer->outFrame) return; if (frameNo < layer->inFrame || frameNo > layer->outFrame) return;
auto opacity = layer->opacity(frameNo);
if (opacity == 0) return;
_updateTransform(layer, frameNo); _updateTransform(layer, frameNo);
//Prepare render data //Prepare render data
layer->scene = Scene::gen().release(); layer->scene = Scene::gen().release();
layer->scene->transform(layer->cache.matrix);
//FIXME: Ignore opacity when Null layer? //FIXME: Ignore opacity when Null layer?
if (layer->type != LottieLayer::Null) { if (layer->type != LottieLayer::Null) {
layer->scene->opacity(layer->cache.opacity); layer->scene->opacity(layer->cache.opacity);
if (layer->cache.opacity == 0) return;
} }
layer->scene->transform(layer->cache.matrix);
auto rFrameNo = layer->remap(frameNo); auto rFrameNo = layer->remap(frameNo);
switch (layer->type) { switch (layer->type) {