diff options
Diffstat (limited to 'src/mbgl/style/style_layer.cpp')
| -rw-r--r-- | src/mbgl/style/style_layer.cpp | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/src/mbgl/style/style_layer.cpp b/src/mbgl/style/style_layer.cpp index 5fc6af793c..dfd693dffa 100644 --- a/src/mbgl/style/style_layer.cpp +++ b/src/mbgl/style/style_layer.cpp @@ -28,6 +28,10 @@ bool StyleLayer::isVisible() const { } } +bool StyleLayer::hasRenderPass(RenderPass pass) const { + return bool(passes & pass); +} + void StyleLayer::setClasses(const std::vector<std::string> &class_names, const TimePoint& now, const PropertyTransition &defaultTransition) { // Stores all keys that we have already added transitions for. @@ -260,6 +264,26 @@ void StyleLayer::updateProperties(float z, const TimePoint& now, ZoomHistory &zo case StyleLayerType::Background: applyStyleProperties<BackgroundProperties>(z, now, zoomHistory); break; default: properties.set<std::false_type>(); break; } + + // Update the render passes when this layer is visible. + passes = RenderPass::None; + if (isVisible()) { + if (properties.is<FillProperties>()) { + const FillProperties &fillProperties = properties.get<FillProperties>(); + const float alpha = fillProperties.fill_color[3] * fillProperties.opacity; + + if (fillProperties.antialias) { + passes |= RenderPass::Translucent; + } + if (!fillProperties.image.from.empty() || alpha < 1.0f) { + passes |= RenderPass::Translucent; + } else { + passes |= RenderPass::Opaque; + } + } else { + passes |= RenderPass::Translucent; + } + } } bool StyleLayer::hasTransitions() const { |