113 lines
5.1 KiB
C++
113 lines
5.1 KiB
C++
#include <mbgl/renderer/layers/render_symbol_layer.hpp>
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#include <mbgl/layout/symbol_layout.hpp>
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#include <mbgl/renderer/bucket.hpp>
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#include <mbgl/renderer/bucket_parameters.hpp>
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#include <mbgl/renderer/property_evaluation_parameters.hpp>
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#include <mbgl/style/layers/symbol_layer_impl.hpp>
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#include <mbgl/tile/geometry_tile_data.hpp>
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namespace mbgl {
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RenderSymbolLayer::RenderSymbolLayer(Immutable<style::SymbolLayer::Impl> _impl)
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: RenderLayer(style::LayerType::Symbol, _impl) {
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}
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const style::SymbolLayer::Impl& RenderSymbolLayer::impl() const {
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return static_cast<const style::SymbolLayer::Impl&>(*baseImpl);
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}
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std::unique_ptr<Bucket> RenderSymbolLayer::createBucket(const BucketParameters&, const std::vector<const RenderLayer*>&) const {
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assert(false); // Should be calling createLayout() instead.
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return nullptr;
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}
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std::unique_ptr<SymbolLayout> RenderSymbolLayer::createLayout(const BucketParameters& parameters,
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const std::vector<const RenderLayer*>& group,
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const GeometryTileLayer& layer,
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GlyphDependencies& glyphDependencies,
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ImageDependencies& imageDependencies) const {
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return std::make_unique<SymbolLayout>(parameters,
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group,
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layer,
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imageDependencies,
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glyphDependencies);
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}
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void RenderSymbolLayer::transition(const TransitionParameters& parameters) {
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unevaluated = impl().paint.transition(parameters, std::move(unevaluated));
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}
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void RenderSymbolLayer::evaluate(const PropertyEvaluationParameters& parameters) {
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evaluated = unevaluated.evaluate(parameters);
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auto hasIconOpacity = evaluated.get<style::IconColor>().constantOr(Color::black()).a > 0 ||
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evaluated.get<style::IconHaloColor>().constantOr(Color::black()).a > 0;
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auto hasTextOpacity = evaluated.get<style::TextColor>().constantOr(Color::black()).a > 0 ||
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evaluated.get<style::TextHaloColor>().constantOr(Color::black()).a > 0;
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passes = ((evaluated.get<style::IconOpacity>().constantOr(1) > 0 && hasIconOpacity && iconSize > 0)
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|| (evaluated.get<style::TextOpacity>().constantOr(1) > 0 && hasTextOpacity && textSize > 0))
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? RenderPass::Translucent : RenderPass::None;
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}
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bool RenderSymbolLayer::hasTransition() const {
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return unevaluated.hasTransition();
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}
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style::IconPaintProperties::PossiblyEvaluated RenderSymbolLayer::iconPaintProperties() const {
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return style::IconPaintProperties::PossiblyEvaluated {
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evaluated.get<style::IconOpacity>(),
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evaluated.get<style::IconColor>(),
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evaluated.get<style::IconHaloColor>(),
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evaluated.get<style::IconHaloWidth>(),
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evaluated.get<style::IconHaloBlur>(),
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evaluated.get<style::IconTranslate>(),
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evaluated.get<style::IconTranslateAnchor>()
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};
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}
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style::TextPaintProperties::PossiblyEvaluated RenderSymbolLayer::textPaintProperties() const {
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return style::TextPaintProperties::PossiblyEvaluated {
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evaluated.get<style::TextOpacity>(),
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evaluated.get<style::TextColor>(),
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evaluated.get<style::TextHaloColor>(),
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evaluated.get<style::TextHaloWidth>(),
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evaluated.get<style::TextHaloBlur>(),
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evaluated.get<style::TextTranslate>(),
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evaluated.get<style::TextTranslateAnchor>()
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};
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}
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style::SymbolPropertyValues RenderSymbolLayer::iconPropertyValues(const style::SymbolLayoutProperties::PossiblyEvaluated& layout_) const {
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return style::SymbolPropertyValues {
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layout_.get<style::IconRotationAlignment>(), // icon-pitch-alignment is not yet implemented; inherit the rotation alignment
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layout_.get<style::IconRotationAlignment>(),
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layout_.get<style::IconSize>(),
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evaluated.get<style::IconTranslate>(),
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evaluated.get<style::IconTranslateAnchor>(),
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iconSize,
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1.0f,
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evaluated.get<style::IconHaloColor>().constantOr(Color::black()).a > 0 &&
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evaluated.get<style::IconHaloWidth>().constantOr(1),
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evaluated.get<style::IconColor>().constantOr(Color::black()).a > 0
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};
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}
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style::SymbolPropertyValues RenderSymbolLayer::textPropertyValues(const style::SymbolLayoutProperties::PossiblyEvaluated& layout_) const {
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return style::SymbolPropertyValues {
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layout_.get<style::TextPitchAlignment>(),
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layout_.get<style::TextRotationAlignment>(),
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layout_.get<style::TextSize>(),
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evaluated.get<style::TextTranslate>(),
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evaluated.get<style::TextTranslateAnchor>(),
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textSize,
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24.0f,
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evaluated.get<style::TextHaloColor>().constantOr(Color::black()).a > 0 &&
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evaluated.get<style::TextHaloWidth>().constantOr(1),
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evaluated.get<style::TextColor>().constantOr(Color::black()).a > 0
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};
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}
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} // namespace mbgl
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