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lottie: fix text range opacity

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Mira Grudzinska 2024-11-11 12:32:36 +01:00 • committed by Jinny You
parent b9cbd74fc6
commit c49cb49e5c
1 changed files with 10 additions and 4 deletions
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14
src/loaders/lottie/tvgLottieBuilder.cpp
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@ -1095,6 +1095,9 @@ void LottieBuilder::updateText(LottieLayer* layer, float frameNo)
Point translation = {0.0f, 0.0f};
auto color = doc.color;
auto strokeColor = doc.stroke.color;
uint8_t opacity = 255;
uint8_t fillOpacity = 255;
uint8_t strokeOpacity = 255;
for (auto s = text->ranges.begin(); s < text->ranges.end(); ++s) {
auto basedIdx = idx;
@ -1107,10 +1110,11 @@ void LottieBuilder::updateText(LottieLayer* layer, float frameNo)
needGroup = true;
translation = translation + f * (*s)->style.position(frameNo);
scaling = scaling * (f * ((*s)->style.scale(frameNo) * 0.01f - Point{1.0f,1.0f}) + Point{1.0f,1.0f});
scaling = scaling * (f * ((*s)->style.scale(frameNo) * 0.01f - Point{1.0f, 1.0f}) + Point{1.0f, 1.0f});
rotation += f * (*s)->style.rotation(frameNo);
shape->opacity((*s)->style.opacity(frameNo));
opacity = (uint8_t)(opacity - f * (opacity - (*s)->style.opacity(frameNo)));
shape->opacity(opacity);
auto rangeColor = (*s)->style.fillColor(frameNo); //TODO: use flag to check whether it was really set
if (tvg::equal(f, 1.0f)) color = rangeColor;
@ -1119,7 +1123,8 @@ void LottieBuilder::updateText(LottieLayer* layer, float frameNo)
color.rgb[1] = lerp<uint8_t>(color.rgb[1], rangeColor.rgb[1], f);
color.rgb[2] = lerp<uint8_t>(color.rgb[2], rangeColor.rgb[2], f);
}
shape->fill(color.rgb[0], color.rgb[1], color.rgb[2], (*s)->style.fillOpacity(frameNo));
fillOpacity = (uint8_t)(fillOpacity - f * (fillOpacity - (*s)->style.fillOpacity(frameNo)));
shape->fill(color.rgb[0], color.rgb[1], color.rgb[2], fillOpacity);
if (doc.stroke.render) {
shape->strokeWidth(f * (*s)->style.strokeWidth(frameNo) / scale);
@ -1130,7 +1135,8 @@ void LottieBuilder::updateText(LottieLayer* layer, float frameNo)
strokeColor.rgb[1] = lerp<uint8_t>(strokeColor.rgb[1], rangeColor.rgb[1], f);
strokeColor.rgb[2] = lerp<uint8_t>(strokeColor.rgb[2], rangeColor.rgb[2], f);
}
shape->strokeFill(strokeColor.rgb[0], strokeColor.rgb[1], strokeColor.rgb[2], (*s)->style.strokeOpacity(frameNo));
strokeOpacity = (uint8_t)(strokeOpacity - f * (strokeOpacity - (*s)->style.strokeOpacity(frameNo)));
shape->strokeFill(strokeColor.rgb[0], strokeColor.rgb[1], strokeColor.rgb[2], strokeOpacity);
}
cursor.x += f * (*s)->style.letterSpacing(frameNo);