550f64be22
Co-authored-by: pre-commit-ci[bot] <66853113+pre-commit-ci[bot]@users.noreply.github.com>
611 lines
23 KiB
C++
611 lines
23 KiB
C++
#include "example_custom_drawable_style_layer.hpp"
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#include <mbgl/style/layer.hpp>
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#include <mbgl/style/layers/custom_drawable_layer.hpp>
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#include <mbgl/util/io.hpp>
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#include <mbgl/gfx/drawable.hpp>
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#include <mbgl/util/logging.hpp>
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#include <memory>
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#include <cmath>
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#include <filesystem>
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#define TINYOBJLOADER_IMPLEMENTATION
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#pragma GCC diagnostic push
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#pragma GCC diagnostic ignored "-Wunknown-pragmas"
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#pragma GCC diagnostic ignored "-Wunused-function"
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#include "tiny_obj_loader.h"
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#pragma GCC diagnostic pop
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ExampleCustomDrawableStyleLayerHost::ExampleCustomDrawableStyleLayerHost(const std::string& assetsPath_)
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: assetsPath(assetsPath_) {}
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ExampleCustomDrawableStyleLayerHost::~ExampleCustomDrawableStyleLayerHost() {}
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void ExampleCustomDrawableStyleLayerHost::initialize() {}
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void ExampleCustomDrawableStyleLayerHost::deinitialize() {}
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void ExampleCustomDrawableStyleLayerHost::update(Interface& interface) {
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// if we have built our drawable(s) already, either update or skip
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if (interface.getDrawableCount() == 0) {
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createDrawables(interface);
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return;
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}
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}
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mln::Point<double> ExampleCustomDrawableStyleLayerHost::project(const mln::LatLng& c, const mln::TransformState& s) {
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mln::LatLng unwrappedLatLng = c.wrapped();
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unwrappedLatLng.unwrapForShortestPath(s.getLatLng(mln::LatLng::Wrapped));
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return mln::Projection::project(unwrappedLatLng, s.getScale());
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}
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void ExampleCustomDrawableStyleLayerHost::createDrawables(Interface& interface) {
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constexpr float extent = mln::util::EXTENT;
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// add classic polylines
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{
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using namespace mln;
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// set tile
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interface.setTileID({11, 327, 792});
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constexpr auto numLines = 6;
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Interface::LineOptions options[numLines]{
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{/*geometry=*/{},
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/*blur=*/0.0f,
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/*opacity=*/1.0f,
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/*gapWidth=*/0.0f,
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/*offset=*/0.0f,
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/*width=*/8.0f,
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/*color=*/Color::red()},
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{/*geometry=*/{},
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/*blur=*/4.0f,
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/*opacity=*/1.0f,
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/*gapWidth=*/2.0f,
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/*offset=*/-1.0f,
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/*width=*/4.0f,
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/*color=*/Color::blue()},
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{/*geometry=*/{},
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/*blur=*/16.0f,
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/*opacity=*/1.0f,
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/*gapWidth=*/1.0f,
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/*offset=*/2.0f,
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/*width=*/16.0f,
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/*color=*/Color(1.f, 0.5f, 0, 0.5f)},
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{/*geometry=*/{},
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/*blur=*/2.0f,
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/*opacity=*/1.0f,
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/*gapWidth=*/1.0f,
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/*offset=*/-2.0f,
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/*width=*/2.0f,
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/*color=*/Color(1.f, 1.f, 0, 0.3f)},
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{/*geometry=*/{},
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/*blur=*/0.5f,
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/*opacity=*/0.5f,
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/*gapWidth=*/1.0f,
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/*offset=*/0.5f,
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/*width=*/0.5f,
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/*color=*/Color::black()},
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{/*geometry=*/{},
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/*blur=*/24.0f,
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/*opacity=*/0.5f,
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/*gapWidth=*/1.0f,
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/*offset=*/-5.0f,
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/*width=*/24.0f,
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/*color=*/Color(1.f, 0, 1.f, 0.2f)},
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};
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for (auto& opt : options) {
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opt.geometry.beginCap = style::LineCapType::Butt;
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opt.geometry.endCap = style::LineCapType::Butt;
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opt.geometry.joinType = style::LineJoinType::Miter;
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}
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constexpr auto numPoints = 10;
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GeometryCoordinates polyline;
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for (auto ipoint{0}; ipoint < numPoints; ++ipoint) {
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polyline.emplace_back(
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static_cast<int16_t>(ipoint * extent / numPoints),
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static_cast<int16_t>(std::sin(ipoint * 2 * M_PI / numPoints) * extent / numLines / 2.f));
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}
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for (auto index{0}; index < numLines; ++index) {
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for (auto& p : polyline) {
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p.y += extent / numLines;
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}
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// set property values
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interface.setLineOptions(options[index]);
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// add polyline
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interface.addPolyline(polyline, Interface::LineShaderType::Classic);
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}
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}
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// add wide vector polylines with tile coordinates
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{
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using namespace mln;
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// set tile
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interface.setTileID({11, 327, 792});
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constexpr auto numLines = 6;
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Interface::LineOptions options[numLines]{
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{/*geometry=*/{},
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/*blur=*/0.0f,
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/*opacity=*/1.0f,
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/*gapWidth=*/0.0f,
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/*offset=*/0.0f,
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/*width=*/8.0f,
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/*color=*/Color::red()},
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{/*geometry=*/{},
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/*blur=*/4.0f,
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/*opacity=*/1.0f,
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/*gapWidth=*/2.0f,
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/*offset=*/-1.0f,
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/*width=*/4.0f,
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/*color=*/Color::blue()},
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{/*geometry=*/{},
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/*blur=*/16.0f,
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/*opacity=*/1.0f,
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/*gapWidth=*/1.0f,
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/*offset=*/2.0f,
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/*width=*/16.0f,
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/*color=*/Color(1.f, 0.5f, 0, 0.5f)},
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{/*geometry=*/{},
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/*blur=*/2.0f,
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/*opacity=*/1.0f,
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/*gapWidth=*/1.0f,
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/*offset=*/-2.0f,
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/*width=*/2.0f,
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/*color=*/Color(1.f, 1.f, 0, 0.3f)},
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{/*geometry=*/{},
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/*blur=*/0.5f,
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/*opacity=*/0.5f,
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/*gapWidth=*/1.0f,
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/*offset=*/0.5f,
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/*width=*/0.5f,
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/*color=*/Color::black()},
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{/*geometry=*/{},
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/*blur=*/24.0f,
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/*opacity=*/0.5f,
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/*gapWidth=*/1.0f,
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/*offset=*/-5.0f,
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/*width=*/24.0f,
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/*color=*/Color(1.f, 0, 1.f, 0.2f)},
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};
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for (auto& opt : options) {
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opt.geometry.beginCap = style::LineCapType::Butt;
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opt.geometry.endCap = style::LineCapType::Butt;
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opt.geometry.joinType = style::LineJoinType::Miter;
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}
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constexpr auto numPoints = 10;
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GeometryCoordinates polyline;
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for (auto ipoint{0}; ipoint < numPoints; ++ipoint) {
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polyline.emplace_back(
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static_cast<int16_t>(ipoint * extent / numPoints),
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static_cast<int16_t>(std::sin(ipoint * 2 * M_PI / numPoints) * extent / numLines / 2.f));
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}
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for (auto index{0}; index < numLines; ++index) {
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for (auto& p : polyline) {
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if (0 == index) p.y += 0.25f * extent / numLines;
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p.y += extent / numLines;
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}
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// set property values
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interface.setLineOptions(options[index]);
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// add polyline
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interface.addPolyline(polyline, Interface::LineShaderType::WideVector);
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// add clone
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for (auto& p : polyline) {
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p.y += 0.05f * extent / numLines;
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}
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interface.addPolyline(polyline, Interface::LineShaderType::WideVector);
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for (auto& p : polyline) {
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p.y -= 0.05f * extent / numLines;
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}
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}
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}
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// add fill polygon
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{
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using namespace mln;
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// set tile
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interface.setTileID({11, 327, 790});
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GeometryCollection geometry{
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{
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// ring 1
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{static_cast<int16_t>(extent * 0.1f), static_cast<int16_t>(extent * 0.2f)},
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{static_cast<int16_t>(extent * 0.5f), static_cast<int16_t>(extent * 0.5f)},
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{static_cast<int16_t>(extent * 0.7f), static_cast<int16_t>(extent * 0.5f)},
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{static_cast<int16_t>(extent * 0.5f), static_cast<int16_t>(extent * 1.0f)},
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{static_cast<int16_t>(extent * 0.0f), static_cast<int16_t>(extent * 0.5f)},
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{static_cast<int16_t>(extent * 0.1f), static_cast<int16_t>(extent * 0.2f)},
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},
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{
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// ring 2
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{static_cast<int16_t>(extent * 0.1f), static_cast<int16_t>(extent * 0.25f)},
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{static_cast<int16_t>(extent * 0.15f), static_cast<int16_t>(extent * 0.5f)},
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{static_cast<int16_t>(extent * 0.25f), static_cast<int16_t>(extent * 0.45f)},
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{static_cast<int16_t>(extent * 0.1f), static_cast<int16_t>(extent * 0.25f)},
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},
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};
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// set properties
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interface.setFillOptions({/*color=*/Color::green(), /*opacity=*/0.5f});
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// add fill
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interface.addFill(geometry);
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}
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// add symbol
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{
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using namespace mln;
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// set tile
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interface.setTileID({11, 327, 789});
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GeometryCoordinate position{static_cast<int16_t>(extent * 0.0f), static_cast<int16_t>(extent * 0.5f)};
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// load image
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std::shared_ptr<PremultipliedImage> image = std::make_shared<PremultipliedImage>(
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mln::decodeImage(mln::util::read_file(assetsPath + "puck_hat.png")));
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// set symbol options
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Interface::SymbolOptions options;
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options.texture = interface.context.createTexture2D();
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options.texture->setImage(image);
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options.texture->setSamplerConfiguration({.filter = gfx::TextureFilterType::Linear,
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.wrapU = gfx::TextureWrapType::Repeat,
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.wrapV = gfx::TextureWrapType::Repeat});
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const std::array<std::array<float, 2>, 2> textureCoordinates = {{{0.0f, 0.0f}, {10.0f, 10.0f}}};
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options.size = {static_cast<uint32_t>(image->size.width), static_cast<uint32_t>(image->size.height)};
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options.anchor = {0.5f, 0.95f};
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options.angleDegrees = 45.0f;
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options.scaleWithMap = true;
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options.pitchWithMap = false;
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interface.setSymbolOptions(options);
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// add symbol
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interface.addSymbol(position, textureCoordinates);
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}
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{
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using namespace mln;
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GeometryCoordinate position{static_cast<int16_t>(extent * 1.0f), static_cast<int16_t>(extent * 0.5f)};
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// load image
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std::shared_ptr<PremultipliedImage> image = std::make_shared<PremultipliedImage>(
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mln::decodeImage(mln::util::read_file(assetsPath + "puck_hat.png")));
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// set symbol options
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Interface::SymbolOptions options;
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options.texture = interface.context.createTexture2D();
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options.texture->setImage(image);
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options.texture->setSamplerConfiguration({.filter = gfx::TextureFilterType::Linear,
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.wrapU = gfx::TextureWrapType::Clamp,
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.wrapV = gfx::TextureWrapType::Clamp});
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options.size = {static_cast<uint32_t>(image->size.width), static_cast<uint32_t>(image->size.height)};
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options.anchor = {0.5f, 0.95f};
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options.angleDegrees = 45.0f;
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options.scaleWithMap = true;
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options.pitchWithMap = false;
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interface.setSymbolOptions(options);
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// add symbol
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interface.addSymbol(position);
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}
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// add polylines using wide vectors using geographic coordinates
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{
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using namespace mln;
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// add polyline with geographic coordinates
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Interface::LineOptions options = {/*geometry=*/{},
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/*blur=*/0.0f,
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/*opacity=*/1.0f,
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/*gapWidth=*/0.0f,
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/*offset=*/0.0f,
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/*width=*/12.0f,
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/*color=*/{.0f, .0f, .0f, .5f}};
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options.geometry.beginCap = style::LineCapType::Square;
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options.geometry.endCap = style::LineCapType::Square;
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options.geometry.joinType = style::LineJoinType::Bevel;
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options.geometry.type = FeatureType::LineString;
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interface.setLineOptions(options);
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LineString<double> polyline_geo{
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// San Francisco
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{-122.38186800073211, 37.77466003457463},
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{-122.3869373450997, 37.774352128895615},
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{-122.38680767979824, 37.773294612880306},
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{-122.38476465260224, 37.773350946288765},
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{-122.38146223043374, 37.77194168964067},
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{-122.6813560305925, 37.666084247570964},
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{-122.26765538866474, 37.65037232584494},
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{-122.42528413673159, 38.020443518012584},
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// Seattle
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{-122.34927775216809, 47.62050663596438},
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// New York
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{-74.04454331829972, 40.6892168305434},
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};
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interface.addPolyline(polyline_geo, Interface::LineShaderType::WideVector);
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}
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// add polylines using wide vectors in tile coordinates
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{
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using namespace mln;
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// set tile
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interface.setTileID({11, 327, 790});
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Interface::LineOptions options{/*geometry=*/{},
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/*blur=*/0.0f,
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/*opacity=*/1.0f,
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/*gapWidth=*/0.0f,
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/*offset=*/0.0f,
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/*width=*/7.0f,
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/*color=*/{1.0f, 0, 0, .5f}};
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options.geometry.beginCap = style::LineCapType::Round;
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options.geometry.endCap = style::LineCapType::Round;
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options.geometry.joinType = style::LineJoinType::Round;
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// add polyline with tile coordinates
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GeometryCollection polyline_tile{
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{
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// ring 1
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{static_cast<int16_t>(extent * 0.1f), static_cast<int16_t>(extent * 0.2f)},
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{static_cast<int16_t>(extent * 0.5f), static_cast<int16_t>(extent * 0.5f)},
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{static_cast<int16_t>(extent * 0.7f), static_cast<int16_t>(extent * 0.5f)},
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{static_cast<int16_t>(extent * 0.5f), static_cast<int16_t>(extent * 1.0f)},
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{static_cast<int16_t>(extent * 0.0f), static_cast<int16_t>(extent * 0.5f)},
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},
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{
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// ring 2
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{static_cast<int16_t>(extent * 0.1f), static_cast<int16_t>(extent * 0.25f)},
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{static_cast<int16_t>(extent * 0.15f), static_cast<int16_t>(extent * 0.5f)},
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{static_cast<int16_t>(extent * 0.25f), static_cast<int16_t>(extent * 0.45f)},
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},
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};
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options.geometry.type = FeatureType::Polygon;
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interface.setLineOptions(options);
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interface.addPolyline(polyline_tile[0], Interface::LineShaderType::WideVector);
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interface.addPolyline(polyline_tile[1], Interface::LineShaderType::WideVector);
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}
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generateGeometry(interface);
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loadGeometry(interface);
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// finish
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interface.finish();
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}
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void ExampleCustomDrawableStyleLayerHost::generateGeometry(Interface& interface) {
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constexpr float itemScale = 10.0f;
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const mln::LatLng location{37.78, -122.47};
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Interface::GeometryOptions options;
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// load image
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std::shared_ptr<mln::PremultipliedImage> image = std::make_shared<mln::PremultipliedImage>(
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mln::decodeImage(mln::util::read_file(assetsPath + "puck.png")));
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options.texture = interface.context.createTexture2D();
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options.texture->setImage(image);
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options.texture->setSamplerConfiguration({.filter = mln::gfx::TextureFilterType::Linear,
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.wrapU = mln::gfx::TextureWrapType::Clamp,
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.wrapV = mln::gfx::TextureWrapType::Clamp});
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const std::shared_ptr<VertexVector> sharedVertices = std::make_shared<VertexVector>();
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VertexVector& vertices = *sharedVertices;
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const std::shared_ptr<TriangleIndexVector> sharedIndices = std::make_shared<TriangleIndexVector>();
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TriangleIndexVector& indices = *sharedIndices;
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const unsigned long numVtxCircumference = 72;
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const float bearingStep = 360.0f / static_cast<float>(numVtxCircumference - 1);
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vertices.emplace_back(Interface::GeometryVertex{.position = {0.0f, 0.0f, 0.0f}, .texcoords = {0.5f, 0.5f}});
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for (unsigned long i = 1; i <= numVtxCircumference; ++i) {
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const float rad = mln::util::deg2radf((i - 1) * bearingStep);
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Interface::GeometryVertex vertex;
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vertex.position = {sinf(rad) / 2.0f, cosf(rad) / 2.0f, 0.0f};
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vertex.texcoords = {0.5f + vertex.position[0], 0.5f - vertex.position[1]};
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vertices.emplace_back(std::move(vertex));
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}
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for (uint16_t i = 1; i < vertices.elements() - 1; ++i) {
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indices.emplace_back(0, i, static_cast<uint16_t>(i + 1));
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}
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indices.emplace_back(0, static_cast<uint16_t>(vertices.elements() - 1), 1);
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interface.setGeometryOptions(options);
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interface.setGeometryTweakerCallback([=, frameCount = 0]([[maybe_unused]] mln::gfx::Drawable& drawable,
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const mln::PaintParameters& params,
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Interface::GeometryOptions& currentOptions) mutable {
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frameCount++;
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const mln::Point<double>& center = project(location, params.state);
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const float scale = itemScale * static_cast<float>(std::pow(2.f, params.state.getZoom())) *
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params.pixelsToGLUnits[0];
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mln::mat4 matrix = mln::matrix::identity4();
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mln::matrix::translate(matrix, matrix, center.x, center.y, 0.0);
|
|
mln::matrix::rotate_z(matrix, matrix, frameCount * 0.05f);
|
|
mln::matrix::scale(matrix, matrix, scale, scale, 1.0f);
|
|
mln::matrix::multiply(currentOptions.matrix, params.transformParams.nearClippedProjMatrix, matrix);
|
|
|
|
if (frameCount % 100 == 0) {
|
|
if (currentOptions.color.g > 0.0f) {
|
|
currentOptions.color = mln::Color::red();
|
|
} else {
|
|
currentOptions.color = mln::Color::white();
|
|
}
|
|
}
|
|
});
|
|
|
|
interface.addGeometry(sharedVertices, sharedIndices, false);
|
|
}
|
|
|
|
void ExampleCustomDrawableStyleLayerHost::loadGeometry(Interface& interface) {
|
|
constexpr float itemScale = 0.1f;
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|
constexpr std::array<float, 3> itemRotation = {90.0f, 0.0f, 0.0f};
|
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const mln::LatLng location{37.76, -122.47};
|
|
|
|
Interface::GeometryOptions options;
|
|
|
|
interface.setGeometryTweakerCallback([=]([[maybe_unused]] mln::gfx::Drawable& drawable,
|
|
const mln::PaintParameters& params,
|
|
Interface::GeometryOptions& currentOptions) mutable {
|
|
const mln::Point<double>& center = project(location, params.state);
|
|
|
|
const float scale = itemScale * static_cast<float>(std::pow(2.f, params.state.getZoom())) *
|
|
params.pixelsToGLUnits[0];
|
|
|
|
mln::mat4 matrix = mln::matrix::identity4();
|
|
mln::matrix::translate(matrix, matrix, center.x, center.y, 0.0);
|
|
mln::matrix::rotate_x(matrix, matrix, mln::util::deg2radf(itemRotation[0]));
|
|
mln::matrix::rotate_y(matrix, matrix, mln::util::deg2radf(itemRotation[1]));
|
|
mln::matrix::rotate_z(matrix, matrix, mln::util::deg2radf(itemRotation[2]));
|
|
mln::matrix::scale(matrix, matrix, scale, scale, scale);
|
|
mln::matrix::multiply(currentOptions.matrix, params.transformParams.nearClippedProjMatrix, matrix);
|
|
});
|
|
|
|
const std::shared_ptr<VertexVector> sharedVertices = std::make_shared<VertexVector>();
|
|
const std::shared_ptr<TriangleIndexVector> sharedIndices = std::make_shared<TriangleIndexVector>();
|
|
|
|
// importObj(interface, "../../_deps/tinyobjloader-src/models/cube.obj", *sharedVertices, *sharedIndices, options);
|
|
importObj(interface, assetsPath + "sphere.obj", *sharedVertices, *sharedIndices, options);
|
|
|
|
interface.setGeometryOptions(options);
|
|
interface.addGeometry(sharedVertices, sharedIndices, true);
|
|
}
|
|
|
|
void ExampleCustomDrawableStyleLayerHost::importObj(Interface& interface,
|
|
const std::string& filename,
|
|
VertexVector& vertices,
|
|
TriangleIndexVector& indices,
|
|
Interface::GeometryOptions& options) {
|
|
tinyobj::ObjReaderConfig readerConfig;
|
|
|
|
readerConfig.triangulate = true;
|
|
readerConfig.vertex_color = false;
|
|
|
|
tinyobj::ObjReader reader;
|
|
|
|
if (!reader.ParseFromFile(filename, readerConfig)) {
|
|
if (!reader.Error().empty()) {
|
|
mln::Log::Error(mln::Event::General, reader.Error());
|
|
}
|
|
|
|
assert(false);
|
|
throw std::runtime_error(std::string("Cannot read obj file ") + filename);
|
|
}
|
|
|
|
if (!reader.Warning().empty()) {
|
|
mln::Log::Error(mln::Event::General, reader.Warning());
|
|
}
|
|
|
|
const tinyobj::attrib_t& attributes = reader.GetAttrib();
|
|
const std::vector<tinyobj::shape_t>& shapes = reader.GetShapes();
|
|
|
|
if (attributes.texcoords.empty()) {
|
|
options.color = mln::Color::green();
|
|
} else {
|
|
// TODO parse material
|
|
|
|
options.texture = createCheckerboardTexture(interface, 32, 32, 40, {255, 255, 255, 255}, {0, 0, 0, 255});
|
|
}
|
|
|
|
for (const auto& shape : shapes) {
|
|
const auto shapeIndexStart = static_cast<uint16_t>(indices.elements());
|
|
|
|
for (uint16_t face = 0; face < shape.mesh.indices.size(); face += 3) {
|
|
for (size_t i = 0; i < 3; ++i) {
|
|
const tinyobj::index_t index = shape.mesh.indices[face + i];
|
|
|
|
Interface::GeometryVertex vertex = {};
|
|
|
|
std::copy(attributes.vertices.begin() + vertex.position.size() * index.vertex_index,
|
|
attributes.vertices.begin() + vertex.position.size() * (index.vertex_index + 1),
|
|
vertex.position.begin());
|
|
|
|
if (!attributes.texcoords.empty()) {
|
|
std::copy(attributes.texcoords.begin() + vertex.texcoords.size() * index.texcoord_index,
|
|
attributes.texcoords.begin() + vertex.texcoords.size() * (index.texcoord_index + 1),
|
|
vertex.texcoords.begin());
|
|
}
|
|
|
|
vertices.emplace_back(std::move(vertex));
|
|
}
|
|
|
|
indices.emplace_back(shapeIndexStart + face, shapeIndexStart + face + 1, shapeIndexStart + face + 2);
|
|
}
|
|
}
|
|
}
|
|
|
|
mln::gfx::Texture2DPtr ExampleCustomDrawableStyleLayerHost::createCheckerboardTexture(
|
|
Interface& interface,
|
|
uint16_t wb,
|
|
uint16_t hb,
|
|
uint16_t blockSize,
|
|
const std::array<uint8_t, 4>& color1,
|
|
const std::array<uint8_t, 4>& color2) {
|
|
std::shared_ptr<mln::PremultipliedImage> image = std::make_shared<mln::PremultipliedImage>(
|
|
mln::Size(wb * blockSize, hb * blockSize));
|
|
|
|
constexpr uint8_t pixelSize = sizeof(uint8_t) * 4;
|
|
|
|
for (uint16_t row = 0; row < hb; ++row) {
|
|
for (uint16_t blockRow = 0; blockRow < blockSize; ++blockRow) {
|
|
for (uint16_t col = 0; col < wb; ++col) {
|
|
for (uint16_t blockCol = 0; blockCol < blockSize; ++blockCol) {
|
|
auto index = (row * blockSize + blockRow) * image->stride() +
|
|
(col * blockSize + blockCol) * pixelSize;
|
|
|
|
memcpy(image->data.get() + index, (row + col) % 2 == 0 ? color1.data() : color2.data(), pixelSize);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
auto texture = interface.context.createTexture2D();
|
|
texture->setSamplerConfiguration({.filter = mln::gfx::TextureFilterType::Linear,
|
|
.wrapU = mln::gfx::TextureWrapType::Clamp,
|
|
.wrapV = mln::gfx::TextureWrapType::Clamp});
|
|
texture->setImage(std::move(image));
|
|
|
|
return texture;
|
|
}
|