diff options
Diffstat (limited to 'src/mbgl/renderer/layers/render_fill_extrusion_layer.cpp')
| -rw-r--r-- | src/mbgl/renderer/layers/render_fill_extrusion_layer.cpp | 167 |
1 files changed, 167 insertions, 0 deletions
diff --git a/src/mbgl/renderer/layers/render_fill_extrusion_layer.cpp b/src/mbgl/renderer/layers/render_fill_extrusion_layer.cpp new file mode 100644 index 0000000000..fbd6160e8a --- /dev/null +++ b/src/mbgl/renderer/layers/render_fill_extrusion_layer.cpp @@ -0,0 +1,167 @@ +#include <mbgl/renderer/layers/render_fill_extrusion_layer.hpp> +#include <mbgl/renderer/buckets/fill_extrusion_bucket.hpp> +#include <mbgl/renderer/render_tile.hpp> +#include <mbgl/renderer/paint_parameters.hpp> +#include <mbgl/renderer/image_manager.hpp> +#include <mbgl/renderer/render_static_data.hpp> +#include <mbgl/renderer/renderer_backend.hpp> +#include <mbgl/programs/programs.hpp> +#include <mbgl/programs/fill_extrusion_program.hpp> +#include <mbgl/tile/tile.hpp> +#include <mbgl/style/layers/fill_extrusion_layer_impl.hpp> +#include <mbgl/geometry/feature_index.hpp> +#include <mbgl/util/math.hpp> +#include <mbgl/util/intersection_tests.hpp> + +namespace mbgl { + +using namespace style; + +RenderFillExtrusionLayer::RenderFillExtrusionLayer(Immutable<style::FillExtrusionLayer::Impl> _impl) + : RenderLayer(style::LayerType::FillExtrusion, _impl), + unevaluated(impl().paint.untransitioned()) { +} + +const style::FillExtrusionLayer::Impl& RenderFillExtrusionLayer::impl() const { + return static_cast<const style::FillExtrusionLayer::Impl&>(*baseImpl); +} + +std::unique_ptr<Bucket> RenderFillExtrusionLayer::createBucket(const BucketParameters& parameters, const std::vector<const RenderLayer*>& layers) const { + return std::make_unique<FillExtrusionBucket>(parameters, layers); +} + +void RenderFillExtrusionLayer::transition(const TransitionParameters& parameters) { + unevaluated = impl().paint.transitioned(parameters, std::move(unevaluated)); +} + +void RenderFillExtrusionLayer::evaluate(const PropertyEvaluationParameters& parameters) { + evaluated = unevaluated.evaluate(parameters); + + passes = (evaluated.get<style::FillExtrusionOpacity>() > 0) + ? (RenderPass::Translucent | RenderPass::Pass3D) + : RenderPass::None; +} + +bool RenderFillExtrusionLayer::hasTransition() const { + return unevaluated.hasTransition(); +} + +void RenderFillExtrusionLayer::render(PaintParameters& parameters, RenderSource*) { + if (parameters.pass == RenderPass::Opaque) { + return; + } + + if (parameters.pass == RenderPass::Pass3D) { + const auto& size = parameters.staticData.backendSize; + + if (!renderTexture || renderTexture->getSize() != size) { + renderTexture = OffscreenTexture(parameters.context, size, *parameters.staticData.depthRenderbuffer); + } + + renderTexture->bind(); + + optional<float> depthClearValue = {}; + if (parameters.staticData.depthRenderbuffer->needsClearing()) depthClearValue = 1.0; + // Flag the depth buffer as no longer needing to be cleared for the remainder of this pass. + parameters.staticData.depthRenderbuffer->shouldClear(false); + + parameters.context.setStencilMode(gl::StencilMode::disabled()); + parameters.context.clear(Color{ 0.0f, 0.0f, 0.0f, 0.0f }, depthClearValue, {}); + + if (evaluated.get<FillExtrusionPattern>().from.empty()) { + for (const RenderTile& tile : renderTiles) { + assert(dynamic_cast<FillExtrusionBucket*>(tile.tile.getBucket(*baseImpl))); + FillExtrusionBucket& bucket = + *reinterpret_cast<FillExtrusionBucket*>(tile.tile.getBucket(*baseImpl)); + + parameters.programs.fillExtrusion.get(evaluated).draw( + parameters.context, gl::Triangles(), + parameters.depthModeFor3D(gl::DepthMode::ReadWrite), + gl::StencilMode::disabled(), parameters.colorModeForRenderPass(), + FillExtrusionUniforms::values( + tile.translatedClipMatrix(evaluated.get<FillExtrusionTranslate>(), + evaluated.get<FillExtrusionTranslateAnchor>(), + parameters.state), + parameters.state, parameters.evaluatedLight), + *bucket.vertexBuffer, *bucket.indexBuffer, bucket.triangleSegments, + bucket.paintPropertyBinders.at(getID()), evaluated, parameters.state.getZoom(), + getID()); + } + } else { + optional<ImagePosition> imagePosA = + parameters.imageManager.getPattern(evaluated.get<FillExtrusionPattern>().from); + optional<ImagePosition> imagePosB = + parameters.imageManager.getPattern(evaluated.get<FillExtrusionPattern>().to); + + if (!imagePosA || !imagePosB) { + return; + } + + parameters.imageManager.bind(parameters.context, 0); + + for (const RenderTile& tile : renderTiles) { + assert(dynamic_cast<FillExtrusionBucket*>(tile.tile.getBucket(*baseImpl))); + FillExtrusionBucket& bucket = + *reinterpret_cast<FillExtrusionBucket*>(tile.tile.getBucket(*baseImpl)); + + parameters.programs.fillExtrusionPattern.get(evaluated).draw( + parameters.context, gl::Triangles(), + parameters.depthModeFor3D(gl::DepthMode::ReadWrite), + gl::StencilMode::disabled(), parameters.colorModeForRenderPass(), + FillExtrusionPatternUniforms::values( + tile.translatedClipMatrix(evaluated.get<FillExtrusionTranslate>(), + evaluated.get<FillExtrusionTranslateAnchor>(), + parameters.state), + parameters.imageManager.getPixelSize(), *imagePosA, *imagePosB, + evaluated.get<FillExtrusionPattern>(), tile.id, parameters.state, + -std::pow(2, tile.id.canonical.z) / util::tileSize / 8.0f, + parameters.evaluatedLight), + *bucket.vertexBuffer, *bucket.indexBuffer, bucket.triangleSegments, + bucket.paintPropertyBinders.at(getID()), evaluated, parameters.state.getZoom(), + getID()); + } + } + + } else if (parameters.pass == RenderPass::Translucent) { + parameters.context.bindTexture(renderTexture->getTexture()); + + const auto& size = parameters.staticData.backendSize; + + mat4 viewportMat; + matrix::ortho(viewportMat, 0, size.width, size.height, 0, 0, 1); + + const Properties<>::PossiblyEvaluated properties; + + parameters.programs.extrusionTexture.draw( + parameters.context, gl::Triangles(), gl::DepthMode::disabled(), + gl::StencilMode::disabled(), parameters.colorModeForRenderPass(), + ExtrusionTextureProgram::UniformValues{ + uniforms::u_matrix::Value{ viewportMat }, uniforms::u_world::Value{ size }, + uniforms::u_image::Value{ 0 }, + uniforms::u_opacity::Value{ evaluated.get<FillExtrusionOpacity>() } }, + parameters.staticData.extrusionTextureVertexBuffer, + parameters.staticData.quadTriangleIndexBuffer, + parameters.staticData.extrusionTextureSegments, + ExtrusionTextureProgram::PaintPropertyBinders{ properties, 0 }, properties, + parameters.state.getZoom(), getID()); + } +} + +bool RenderFillExtrusionLayer::queryIntersectsFeature( + const GeometryCoordinates& queryGeometry, + const GeometryTileFeature& feature, + const float, + const float bearing, + const float pixelsToTileUnits) const { + + auto translatedQueryGeometry = FeatureIndex::translateQueryGeometry( + queryGeometry, + evaluated.get<style::FillExtrusionTranslate>(), + evaluated.get<style::FillExtrusionTranslateAnchor>(), + bearing, + pixelsToTileUnits); + + return util::polygonIntersectsMultiPolygon(translatedQueryGeometry.value_or(queryGeometry), feature.getGeometries()); +} + +} // namespace mbgl |