diff options
Diffstat (limited to 'src/mbgl/layer/symbol_layer_impl.cpp')
-rw-r--r-- | src/mbgl/layer/symbol_layer_impl.cpp | 80 |
1 files changed, 80 insertions, 0 deletions
diff --git a/src/mbgl/layer/symbol_layer_impl.cpp b/src/mbgl/layer/symbol_layer_impl.cpp new file mode 100644 index 0000000000..3a0e0dceca --- /dev/null +++ b/src/mbgl/layer/symbol_layer_impl.cpp @@ -0,0 +1,80 @@ +#include <mbgl/layer/symbol_layer_impl.hpp> +#include <mbgl/renderer/symbol_bucket.hpp> +#include <mbgl/style/style_bucket_parameters.hpp> + +namespace mbgl { + +void SymbolLayer::Impl::parseLayout(const JSValue& value) { + layout.parse(value); +} + +void SymbolLayer::Impl::parsePaints(const JSValue& layer) { + paint.parse(layer); +} + +void SymbolLayer::Impl::cascade(const StyleCascadeParameters& parameters) { + paint.cascade(parameters); +} + +bool SymbolLayer::Impl::recalculate(const StyleCalculationParameters& parameters) { + bool hasTransitions = paint.recalculate(parameters); + + // text-size and icon-size are layout properties but they also need to be evaluated as paint properties: + layout.iconSize.calculate(parameters); + layout.textSize.calculate(parameters); + iconSize = layout.iconSize; + textSize = layout.textSize; + + passes = ((paint.iconOpacity > 0 && (paint.iconColor.value[3] > 0 || paint.iconHaloColor.value[3] > 0) && iconSize > 0) + || (paint.textOpacity > 0 && (paint.textColor.value[3] > 0 || paint.textHaloColor.value[3] > 0) && textSize > 0)) + ? RenderPass::Translucent : RenderPass::None; + + return hasTransitions; +} + +std::unique_ptr<Bucket> SymbolLayer::Impl::createBucket(StyleBucketParameters& parameters) const { + auto bucket = std::make_unique<SymbolBucket>(parameters.tileID.overscaleFactor(), + parameters.tileID.overscaledZ, + parameters.mode, + id, + parameters.layer.getName()); + + bucket->layout = layout; + + StyleCalculationParameters p(parameters.tileID.overscaledZ); + bucket->layout.symbolPlacement.calculate(p); + if (bucket->layout.symbolPlacement.value == SymbolPlacementType::Line) { + bucket->layout.iconRotationAlignment.value = RotationAlignmentType::Map; + bucket->layout.textRotationAlignment.value = RotationAlignmentType::Map; + }; + + bucket->layout.recalculate(p); + + bucket->layout.iconSize.calculate(StyleCalculationParameters(18)); + bucket->layout.textSize.calculate(StyleCalculationParameters(18)); + bucket->iconMaxSize = bucket->layout.iconSize; + bucket->textMaxSize = bucket->layout.textSize; + bucket->layout.iconSize.calculate(StyleCalculationParameters(p.z + 1)); + bucket->layout.textSize.calculate(StyleCalculationParameters(p.z + 1)); + + bucket->parseFeatures(parameters.layer, filter); + + if (bucket->needsDependencies(parameters.glyphStore, parameters.spriteStore)) { + parameters.partialParse = true; + } + + // We do not add features if the parser is in a "partial" state because + // the layer ordering needs to be respected when calculating text + // collisions. Although, at this point, we requested all the resources + // needed by this tile. + if (!parameters.partialParse) { + bucket->addFeatures(parameters.tileUID, + *spriteAtlas, + parameters.glyphAtlas, + parameters.glyphStore); + } + + return std::move(bucket); +} + +} // namespace mbgl |