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#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::None;
}
bool RenderFillExtrusionLayer::hasTransition() const {
return unevaluated.hasTransition();
}
void RenderFillExtrusionLayer::render(PaintParameters& parameters, RenderSource*) {
if (parameters.pass == RenderPass::Opaque) {
return;
}
const auto size = parameters.context.viewport.getCurrentValue().size;
if (!parameters.staticData.extrusionTexture || parameters.staticData.extrusionTexture->getSize() != size) {
parameters.staticData.extrusionTexture = OffscreenTexture(parameters.context, size, OffscreenTextureAttachment::Depth);
}
parameters.staticData.extrusionTexture->bind();
parameters.context.setStencilMode(gl::StencilMode::disabled());
parameters.context.setDepthMode(parameters.depthModeForSublayer(0, gl::DepthMode::ReadWrite));
parameters.context.clear(Color{ 0.0f, 0.0f, 0.0f, 0.0f }, 1.0f, {});
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.depthModeForSublayer(0, 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.depthModeForSublayer(0, 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());
}
}
parameters.backend.bind();
parameters.context.bindTexture(parameters.staticData.extrusionTexture->getTexture());
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
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