102 lines
3.3 KiB
C++
102 lines
3.3 KiB
C++
#include <mbgl/renderer/render_layer.hpp>
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#include <mbgl/renderer/paint_parameters.hpp>
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#include <mbgl/renderer/render_source.hpp>
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#include <mbgl/renderer/render_tile.hpp>
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#include <mbgl/style/types.hpp>
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#include <mbgl/style/layer.hpp>
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#include <mbgl/tile/tile.hpp>
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#include <mbgl/gfx/context.hpp>
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#include <mbgl/util/logging.hpp>
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namespace mbgl {
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using namespace style;
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RenderLayer::RenderLayer(Immutable<style::LayerProperties> properties)
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: evaluatedProperties(std::move(properties)),
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baseImpl(evaluatedProperties->baseImpl) {
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}
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void RenderLayer::transition(const TransitionParameters& parameters, Immutable<style::Layer::Impl> newImpl) {
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baseImpl = std::move(newImpl);
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transition(parameters);
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}
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bool RenderLayer::needsPlacement() const {
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return baseImpl->getTypeInfo()->crossTileIndex == style::LayerTypeInfo::CrossTileIndex::Required
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&& !placementData.empty();
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}
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const std::string& RenderLayer::getID() const {
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return baseImpl->id;
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}
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bool RenderLayer::hasRenderPass(RenderPass pass) const {
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return bool(passes & pass);
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}
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bool RenderLayer::needsRendering() const {
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return passes != RenderPass::None
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&& baseImpl->visibility != style::VisibilityType::None;
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}
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bool RenderLayer::supportsZoom(float zoom) const {
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// TODO: shall we use rounding or epsilon comparisons?
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return baseImpl->minZoom <= zoom && baseImpl->maxZoom >= zoom;
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}
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void RenderLayer::prepare(const LayerPrepareParameters& params) {
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assert(params.source);
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renderTiles = filterRenderTiles(params.source->getRenderTiles());
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}
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optional<Color> RenderLayer::getSolidBackground() const {
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return nullopt;
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}
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RenderTiles RenderLayer::filterRenderTiles(RenderTiles tiles) const {
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RenderTiles filtered;
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for (const RenderTile& tile : tiles) {
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if (tile.holdForFade()) {
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continue;
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}
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filtered.emplace_back(tile);
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}
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return filtered;
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}
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void RenderLayer::markContextDestroyed() {
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// no-op
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}
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void RenderLayer::checkRenderability(const PaintParameters& parameters,
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const uint32_t activeBindingCount) {
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// Only warn once for every layer.
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if (hasRenderFailures) {
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return;
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}
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if (activeBindingCount > parameters.context.maximumVertexBindingCount) {
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Log::Info(Event::OpenGL,
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"The layer '%s' uses more data-driven properties than the current device "
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"supports, and will have rendering errors. To ensure compatibility with this "
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"device, use %d fewer data driven properties in this layer.",
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getID().c_str(),
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activeBindingCount - parameters.context.minimumRequiredVertexBindingCount);
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hasRenderFailures = true;
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} else if (activeBindingCount > parameters.context.minimumRequiredVertexBindingCount) {
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Log::Info(Event::OpenGL,
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"The layer '%s' uses more data-driven properties than some devices may support. "
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"Though it will render correctly on this device, it may have rendering errors "
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"on other devices. To ensure compatibility with all devices, use %d fewer "
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"data-driven properties in this layer.",
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getID().c_str(),
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activeBindingCount - parameters.context.minimumRequiredVertexBindingCount);
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hasRenderFailures = true;
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}
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}
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} //namespace mbgl
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