| #include "rive/animation/keyframe_double.hpp" |
| #include "rive/generated/core_registry.hpp" |
| |
| using namespace rive; |
| |
| // This whole class is intentionally misnamed to match our editor code. The |
| // editor uses doubles (float64) for numeric values but at runtime 32 bit |
| // floating point numbers suffice. So even though this is a "double keyframe" to |
| // match editor names, the actual values are stored and applied in 32 bits. |
| |
| static void applyDouble(Core* object, int propertyKey, float mix, float value) { |
| if (mix == 1.0f) { |
| CoreRegistry::setDouble(object, propertyKey, value); |
| } else { |
| float mixi = 1.0 - mix; |
| CoreRegistry::setDouble( |
| object, propertyKey, CoreRegistry::getDouble(object, propertyKey) * mixi + value * mix); |
| } |
| } |
| |
| void KeyFrameDouble::apply(Core* object, int propertyKey, float mix) { |
| applyDouble(object, propertyKey, mix, value()); |
| } |
| |
| void KeyFrameDouble::applyInterpolation( |
| Core* object, int propertyKey, float currentTime, const KeyFrame* nextFrame, float mix) { |
| auto kfd = nextFrame->as<KeyFrameDouble>(); |
| const KeyFrameDouble& nextDouble = *kfd; |
| float f = (currentTime - seconds()) / (nextDouble.seconds() - seconds()); |
| |
| if (CubicInterpolator* cubic = interpolator()) { |
| f = cubic->transform(f); |
| } |
| |
| applyDouble(object, propertyKey, mix, value() + (nextDouble.value() - value()) * f); |
| } |