Files
MapLibreParticleLab/src/mbgl/renderer/layers/render_fill_layer.cpp
2023-08-31 15:36:19 +02:00

621 lines
30 KiB
C++

#include <mbgl/geometry/feature_index.hpp>
#include <mbgl/gfx/context.hpp>
#include <mbgl/gfx/drawable_builder.hpp>
#include <mbgl/gfx/cull_face_mode.hpp>
#include <mbgl/gfx/renderable.hpp>
#include <mbgl/gfx/renderer_backend.hpp>
#include <mbgl/programs/fill_program.hpp>
#include <mbgl/programs/programs.hpp>
#include <mbgl/renderer/buckets/fill_bucket.hpp>
#include <mbgl/renderer/image_manager.hpp>
#include <mbgl/renderer/layers/render_fill_layer.hpp>
#include <mbgl/renderer/paint_parameters.hpp>
#include <mbgl/renderer/render_source.hpp>
#include <mbgl/renderer/render_tile.hpp>
#include <mbgl/style/expression/image.hpp>
#include <mbgl/style/layers/fill_layer_impl.hpp>
#include <mbgl/tile/geometry_tile.hpp>
#include <mbgl/tile/tile.hpp>
#include <mbgl/util/intersection_tests.hpp>
#include <mbgl/util/math.hpp>
namespace mbgl {
using namespace style;
namespace {
inline const FillLayer::Impl& impl_cast(const Immutable<style::Layer::Impl>& impl) {
assert(impl->getTypeInfo() == FillLayer::Impl::staticTypeInfo());
return static_cast<const FillLayer::Impl&>(*impl);
}
} // namespace
RenderFillLayer::RenderFillLayer(Immutable<style::FillLayer::Impl> _impl)
: RenderLayer(makeMutable<FillLayerProperties>(std::move(_impl))),
unevaluated(impl_cast(baseImpl).paint.untransitioned()) {}
RenderFillLayer::~RenderFillLayer() = default;
void RenderFillLayer::transition(const TransitionParameters& parameters) {
unevaluated = impl_cast(baseImpl).paint.transitioned(parameters, std::move(unevaluated));
}
void RenderFillLayer::evaluate(const PropertyEvaluationParameters& parameters) {
auto properties = makeMutable<FillLayerProperties>(staticImmutableCast<FillLayer::Impl>(baseImpl),
parameters.getCrossfadeParameters(),
unevaluated.evaluate(parameters));
auto& evaluated = properties->evaluated;
if (unevaluated.get<style::FillOutlineColor>().isUndefined()) {
evaluated.get<style::FillOutlineColor>() = evaluated.get<style::FillColor>();
}
passes = RenderPass::Translucent;
if (!(!unevaluated.get<style::FillPattern>().isUndefined() ||
evaluated.get<style::FillColor>().constantOr(Color()).a < 1.0f ||
evaluated.get<style::FillOpacity>().constantOr(0) < 1.0f)) {
// Supply both - evaluated based on opaquePassCutoff in render().
passes |= RenderPass::Opaque;
}
properties->renderPasses = mbgl::underlying_type(passes);
evaluatedProperties = std::move(properties);
}
bool RenderFillLayer::hasTransition() const {
return unevaluated.hasTransition();
}
bool RenderFillLayer::hasCrossfade() const {
return getCrossfade<FillLayerProperties>(evaluatedProperties).t != 1;
}
void RenderFillLayer::render(PaintParameters& parameters) {
assert(renderTiles);
if (!parameters.shaders.populate(fillProgram)) return;
if (!parameters.shaders.populate(fillPatternProgram)) return;
if (!parameters.shaders.populate(fillOutlineProgram)) return;
if (!parameters.shaders.populate(fillOutlinePatternProgram)) return;
if (unevaluated.get<FillPattern>().isUndefined()) {
parameters.renderTileClippingMasks(renderTiles);
for (const RenderTile& tile : *renderTiles) {
const LayerRenderData* renderData = getRenderDataForPass(tile, parameters.pass);
if (!renderData) {
continue;
}
auto& bucket = static_cast<FillBucket&>(*renderData->bucket);
const auto& evaluated = getEvaluated<FillLayerProperties>(renderData->layerProperties);
auto draw = [&](auto& programInstance,
const auto& drawMode,
const auto& depthMode,
const auto& indexBuffer,
const auto& segments,
auto&& textureBindings) {
const auto& paintPropertyBinders = bucket.paintPropertyBinders.at(getID());
const auto allUniformValues = programInstance.computeAllUniformValues(
FillProgram::LayoutUniformValues{
uniforms::matrix::Value(tile.translatedMatrix(
evaluated.get<FillTranslate>(), evaluated.get<FillTranslateAnchor>(), parameters.state)),
uniforms::world::Value(parameters.backend.getDefaultRenderable().getSize()),
},
paintPropertyBinders,
evaluated,
static_cast<float>(parameters.state.getZoom()));
const auto allAttributeBindings = programInstance.computeAllAttributeBindings(
*bucket.vertexBuffer, paintPropertyBinders, evaluated);
checkRenderability(parameters, programInstance.activeBindingCount(allAttributeBindings));
programInstance.draw(parameters.context,
*parameters.renderPass,
drawMode,
depthMode,
parameters.stencilModeForClipping(tile.id),
parameters.colorModeForRenderPass(),
gfx::CullFaceMode::disabled(),
indexBuffer,
segments,
allUniformValues,
allAttributeBindings,
std::forward<decltype(textureBindings)>(textureBindings),
getID());
};
auto fillRenderPass = (evaluated.get<FillColor>().constantOr(Color()).a >= 1.0f &&
evaluated.get<FillOpacity>().constantOr(0) >= 1.0f &&
parameters.currentLayer >= parameters.opaquePassCutoff)
? RenderPass::Opaque
: RenderPass::Translucent;
if (bucket.triangleIndexBuffer && parameters.pass == fillRenderPass) {
draw(*fillProgram,
gfx::Triangles(),
parameters.depthModeForSublayer(1,
parameters.pass == RenderPass::Opaque
? gfx::DepthMaskType::ReadWrite
: gfx::DepthMaskType::ReadOnly),
*bucket.triangleIndexBuffer,
bucket.triangleSegments,
FillProgram::TextureBindings{});
}
if (evaluated.get<FillAntialias>() && parameters.pass == RenderPass::Translucent) {
draw(*fillOutlineProgram,
gfx::Lines{2.0f},
parameters.depthModeForSublayer(unevaluated.get<FillOutlineColor>().isUndefined() ? 2 : 0,
gfx::DepthMaskType::ReadOnly),
*bucket.lineIndexBuffer,
bucket.lineSegments,
FillOutlineProgram::TextureBindings{});
}
}
} else {
if (parameters.pass != RenderPass::Translucent) {
return;
}
parameters.renderTileClippingMasks(renderTiles);
for (const RenderTile& tile : *renderTiles) {
const LayerRenderData* renderData = getRenderDataForPass(tile, parameters.pass);
if (!renderData) {
continue;
}
auto& bucket = static_cast<FillBucket&>(*renderData->bucket);
const auto& evaluated = getEvaluated<FillLayerProperties>(renderData->layerProperties);
const auto& crossfade = getCrossfade<FillLayerProperties>(renderData->layerProperties);
const auto& fillPatternValue = evaluated.get<FillPattern>().constantOr(Faded<expression::Image>{"", ""});
std::optional<ImagePosition> patternPosA = tile.getPattern(fillPatternValue.from.id());
std::optional<ImagePosition> patternPosB = tile.getPattern(fillPatternValue.to.id());
auto draw = [&](auto& programInstance,
const auto& drawMode,
const auto& depthMode,
const auto& indexBuffer,
const auto& segments,
auto&& textureBindings) {
const auto& paintPropertyBinders = bucket.paintPropertyBinders.at(getID());
paintPropertyBinders.setPatternParameters(patternPosA, patternPosB, crossfade);
const auto allUniformValues = programInstance.computeAllUniformValues(
FillPatternProgram::layoutUniformValues(
tile.translatedMatrix(
evaluated.get<FillTranslate>(), evaluated.get<FillTranslateAnchor>(), parameters.state),
parameters.backend.getDefaultRenderable().getSize(),
tile.getIconAtlasTexture().size,
crossfade,
tile.id,
parameters.state,
parameters.pixelRatio),
paintPropertyBinders,
evaluated,
static_cast<float>(parameters.state.getZoom()));
const auto allAttributeBindings = programInstance.computeAllAttributeBindings(
*bucket.vertexBuffer, paintPropertyBinders, evaluated);
checkRenderability(parameters, programInstance.activeBindingCount(allAttributeBindings));
programInstance.draw(parameters.context,
*parameters.renderPass,
drawMode,
depthMode,
parameters.stencilModeForClipping(tile.id),
parameters.colorModeForRenderPass(),
gfx::CullFaceMode::disabled(),
indexBuffer,
segments,
allUniformValues,
allAttributeBindings,
std::forward<decltype(textureBindings)>(textureBindings),
getID());
};
if (bucket.triangleIndexBuffer) {
draw(*fillPatternProgram,
gfx::Triangles(),
parameters.depthModeForSublayer(1, gfx::DepthMaskType::ReadWrite),
*bucket.triangleIndexBuffer,
bucket.triangleSegments,
FillPatternProgram::TextureBindings{
textures::image::Value{tile.getIconAtlasTexture().getResource(),
gfx::TextureFilterType::Linear},
});
}
if (evaluated.get<FillAntialias>() && unevaluated.get<FillOutlineColor>().isUndefined()) {
draw(*fillOutlinePatternProgram,
gfx::Lines{2.0f},
parameters.depthModeForSublayer(2, gfx::DepthMaskType::ReadOnly),
*bucket.lineIndexBuffer,
bucket.lineSegments,
FillOutlinePatternProgram::TextureBindings{
textures::image::Value{tile.getIconAtlasTexture().getResource(),
gfx::TextureFilterType::Linear},
});
}
}
}
}
bool RenderFillLayer::queryIntersectsFeature(const GeometryCoordinates& queryGeometry,
const GeometryTileFeature& feature,
const float,
const TransformState& transformState,
const float pixelsToTileUnits,
const mat4&,
const FeatureState&) const {
const auto& evaluated = getEvaluated<FillLayerProperties>(evaluatedProperties);
auto translatedQueryGeometry = FeatureIndex::translateQueryGeometry(queryGeometry,
evaluated.get<style::FillTranslate>(),
evaluated.get<style::FillTranslateAnchor>(),
static_cast<float>(transformState.getBearing()),
pixelsToTileUnits);
return util::polygonIntersectsMultiPolygon(translatedQueryGeometry.value_or(queryGeometry),
feature.getGeometries());
}
constexpr auto shaderName = "background_generic";
void RenderFillLayer::layerRemoved(UniqueChangeRequestVec& changes) {
// TODO: This isn't happening on style change, so old tile drawables are being left active
// Remove everything
decltype(tileDrawables) localDrawables;
{
std::unique_lock<std::mutex> guard(mutex);
localDrawables = std::move(tileDrawables);
}
removeDrawables<decltype(localDrawables)::const_iterator>(
localDrawables.cbegin(), localDrawables.cend(), changes, [](auto& ii) { return ii->second->getId(); });
}
void RenderFillLayer::update(const int32_t layerIndex,
gfx::ShaderRegistry& shaders,
gfx::Context& context,
const TransformState& /*state*/,
UniqueChangeRequestVec& changes) {
std::unique_lock<std::mutex> guard(mutex);
if (!shader) {
shader = context.getGenericShader(shaders, shaderName);
}
// const auto& evaluated = getEvaluated<FillLayerProperties>(evaluatedProperties);
// std::optional<Color> color;
// if (evaluated.get<FillPattern>().from.empty()) {
// const auto opacity = evaluated.get<style::FillOpacity>();
// if (opacity > 0.0f) {
// color = evaluated.get<FillColor>() * evaluated.get<FillOpacity>();
// }
// }
//
// // If the result is transparent or missing, just remove any existing drawables and stop
// if (!color) {
// removeDrawables<decltype(tileDrawables)::const_iterator>(
// tileDrawables.cbegin(), tileDrawables.cend(), changes, [](auto& ii) { return ii->second->getId(); });
// tileDrawables.clear();
// return;
// }
//
// const bool colorChange = (color != lastColor);
// const bool layerChange = (layerIndex != lastLayerIndex);
// lastColor = color;
// lastLayerIndex = layerIndex;
//
// const auto zoom = state.getIntegerZoom();
// const auto tileCover = util::tileCover(state, zoom);
//
// // Drawables per overscaled or canonical tile?
// // const UnwrappedTileID unwrappedTileID = tileID.toUnwrapped();
//
// // Put the tile cover into a searchable form.
// // TODO: Likely better to sort and `std::binary_search` the vector.
// // If it's returned in a well-defined order, we might not even need to sort.
// const std::unordered_set<OverscaledTileID> newTileIDs(tileCover.begin(), tileCover.end());
//
// // For each existing tile drawable...
// for (auto iter = tileDrawables.begin(); iter != tileDrawables.end();) {
// const auto& drawable = iter->second;
//
// // Has this tile dropped out of the cover set?
// if (newTileIDs.find(iter->first) == newTileIDs.end()) {
// // remove it
// changes.emplace_back(std::make_unique<RemoveDrawableRequest>(drawable->getId()));
// // Log::Warning(Event::General, "Removing drawable for " + util::toString(iter->first) + " total " +
// // std::to_string(stats.tileDrawablesRemoved+1));
// iter = tileDrawables.erase(iter);
// ++stats.tileDrawablesRemoved;
// continue;
// }
// ++iter;
//
// // If the color evaluated to a new value, update all vertexes of the drawable to the new color
// if (colorChange) {
// drawable->resetColor(*color);
// }
// if (layerChange) {
// drawable->setLayerIndex(layerIndex);
// }
// }
//
// std::unique_ptr<gfx::DrawableBuilder> builder;
//
// // For each tile in the cover set, add a tile drawable if one doesn't already exist.
// // We currently assume only one drawable per tile.
// for (const auto& tileID : tileCover) {
// const auto result = tileDrawables.insert(std::make_pair(tileID, gfx::DrawablePtr()));
// if (!result.second) {
// // Already present
// // TODO: Update matrix here or in the tweaker?
// continue;
// }
//
// // We actually need to build things, so set up a builder if we haven't already
// if (!builder) {
// builder = context.createDrawableBuilder("background");
// builder->setShader(shader);
// builder->addTweaker(context.createDrawableTweaker());
// builder->setColor(*color);
// builder->setColorMode(gfx::DrawableBuilder::ColorMode::PerDrawable);
// builder->setDepthType(gfx::DepthMaskType::ReadWrite);
// builder->setLayerIndex(layerIndex);
// }
//
// // Tile coordinates are fixed...
// builder->addQuad(0, 0, util::EXTENT, util::EXTENT);
//
// // ... they're placed with the matrix in the uniforms, which changes with the view
// builder->setMatrix(/*parameters.matrixForTile(tileID.toUnwrapped())*/ matrix::identity4());
//
// builder->flush();
//
// auto drawables = builder->clearDrawables();
// if (!drawables.empty()) {
// auto& drawable = drawables[0];
// drawable->setTileID(tileID);
// result.first->second = drawable;
// changes.emplace_back(std::make_unique<AddDrawableRequest>(std::move(drawable)));
// ++stats.tileDrawablesAdded;
// // Log::Warning(Event::General, "Adding drawable for " + util::toString(tileID) + " total " +
// // std::to_string(stats.tileDrawablesAdded+1));
// }
// }
std::unordered_set<OverscaledTileID> newTileIDs(renderTiles->size());
std::transform(renderTiles->begin(),
renderTiles->end(),
std::inserter(newTileIDs, newTileIDs.begin()),
[](const auto& renderTile) -> OverscaledTileID { return renderTile.get().getOverscaledTileID(); });
// For each existing tile drawable...
for (auto iter = tileDrawables.begin(); iter != tileDrawables.end();) {
const auto& drawable = iter->second;
// Has this tile dropped out of the cover set?
if (newTileIDs.find(iter->first) == newTileIDs.end()) {
// remove it
if (drawable) {
changes.emplace_back(std::make_unique<RemoveDrawableRequest>(drawable->getId()));
}
// Log::Warning(Event::General, "Removing drawable for " + util::toString(iter->first) + " total " +
// std::to_string(stats.tileDrawablesRemoved+1));
iter = tileDrawables.erase(iter);
++stats.tileDrawablesRemoved;
continue;
}
++iter;
// update...
}
std::unique_ptr<gfx::DrawableBuilder> builder;
if (unevaluated.get<FillPattern>().isUndefined()) {
// parameters.renderTileClippingMasks(renderTiles);
for (const RenderTile& tile : *renderTiles) {
const auto& tileID = tile.getOverscaledTileID();
const auto hit = tileDrawables.find(tileID);
const auto renderPass = RenderPass::Translucent;
const LayerRenderData* renderData = getRenderDataForPass(tile, renderPass);
if (!renderData) {
// Remove the tile if it was previously present
if (hit != tileDrawables.end()) {
if (hit->second) {
changes.emplace_back(std::make_unique<RemoveDrawableRequest>(hit->second->getId()));
}
tileDrawables.erase(hit);
++stats.tileDrawablesRemoved;
}
continue;
}
if (hit != tileDrawables.end()) {
// already present
continue;
}
auto& bucket = static_cast<FillBucket&>(*renderData->bucket);
const auto& evaluated = getEvaluated<FillLayerProperties>(renderData->layerProperties);
if (!builder) {
builder = context.createDrawableBuilder("fill");
builder->setShader(shader);
builder->addTweaker(context.createDrawableTweaker());
builder->setColorMode(gfx::DrawableBuilder::ColorMode::PerDrawable);
builder->setDepthType(gfx::DepthMaskType::ReadWrite);
builder->setLayerIndex(layerIndex);
}
const auto fillRenderPass = (evaluated.get<FillColor>().constantOr(Color()).a >= 1.0f &&
evaluated.get<FillOpacity>().constantOr(0) >= 1.0f
/* && parameters.currentLayer >= parameters.opaquePassCutoff*/)
? RenderPass::Opaque
: RenderPass::Translucent;
builder->setRenderPass(fillRenderPass);
const std::vector<gfx::VertexVector<gfx::detail::VertexType<gfx::AttributeType<int16_t, 2>>>::Vertex>&
verts = bucket.vertices.vector();
std::vector<std::array<int16_t, 2>> rawVerts(verts.size());
std::transform(verts.begin(), verts.end(), rawVerts.begin(), [](const auto& x) { return x.a1; });
for (const auto& seg : bucket.triangleSegments) {
builder->addTriangles(rawVerts,
seg.vertexOffset,
seg.vertexLength,
bucket.triangles.vector(),
seg.indexOffset,
seg.indexLength);
}
// evaluated.get<FillTranslate>(),
// evaluated.get<FillTranslateAnchor>(),
// parameters.stencilModeForClipping(tile.id),
// parameters.colorModeForRenderPass(),
// gfx::CullFaceMode::disabled(),
//
// const auto isOpaque = (evaluated.get<FillColor>().constantOr(Color()).a >= 1.0f &&
// evaluated.get<FillOpacity>().constantOr(0) >= 1.0f
// );// && layerIndex >= parameters.opaquePassCutoff);
// const auto fillRenderPass = isOpaque ? RenderPass::Opaque : RenderPass::Translucent;
//
// if (renderPass == fillRenderPass) {
// }
// const auto depthMask = (renderPass == RenderPass::Opaque) ? gfx::DepthMaskType::ReadWrite
// : gfx::DepthMaskType::ReadOnly;
// const auto depthMode = parameters.depthModeForSublayer(1, depthMask);
// if (evaluated.get<FillAntialias>() && parameters.pass == RenderPass::Translucent) {
// draw(*fillOutlineProgram,
// gfx::Lines{2.0f},
// parameters.depthModeForSublayer(unevaluated.get<FillOutlineColor>().isUndefined() ? 2
// : 0,
// gfx::DepthMaskType::ReadOnly),
// *bucket.lineIndexBuffer,
// bucket.lineSegments,
// FillOutlineProgram::TextureBindings{});
// }
builder->flush();
auto newDrawables = builder->clearDrawables();
if (!newDrawables.empty()) {
auto& drawable = newDrawables[0];
drawable->setTileID(tileID);
// Track it.
#if !defined(NDEBUG)
const auto result =
#endif
tileDrawables.insert(std::make_pair(tileID, drawable));
// This should always insert because we checked previously.
assert(result.second);
changes.emplace_back(std::make_unique<AddDrawableRequest>(std::move(drawable)));
++stats.tileDrawablesAdded;
// Log::Warning(Event::General, "Adding drawable for " + util::toString(tileID) + " total " +
// std::to_string(stats.tileDrawablesAdded+1));
}
}
} else {
// if (parameters.pass != RenderPass::Translucent) {
// return;
// }
//
// parameters.renderTileClippingMasks(renderTiles);
//
// for (const RenderTile& tile : *renderTiles) {
// const LayerRenderData* renderData = getRenderDataForPass(tile, parameters.pass);
// if (!renderData) {
// continue;
// }
// auto& bucket = static_cast<FillBucket&>(*renderData->bucket);
// const auto& evaluated = getEvaluated<FillLayerProperties>(renderData->layerProperties);
// const auto& crossfade = getCrossfade<FillLayerProperties>(renderData->layerProperties);
//
// const auto& fillPatternValue =
// evaluated.get<FillPattern>().constantOr(Faded<expression::Image>{"", ""});
// std::optional<ImagePosition> patternPosA = tile.getPattern(fillPatternValue.from.id());
// std::optional<ImagePosition> patternPosB = tile.getPattern(fillPatternValue.to.id());
//
// auto draw = [&](auto& programInstance,
// const auto& drawMode,
// const auto& depthMode,
// const auto& indexBuffer,
// const auto& segments,
// auto&& textureBindings) {
// const auto& paintPropertyBinders = bucket.paintPropertyBinders.at(getID());
// paintPropertyBinders.setPatternParameters(patternPosA, patternPosB, crossfade);
//
// const auto allUniformValues = programInstance.computeAllUniformValues(
// FillPatternProgram::layoutUniformValues(
// tile.translatedMatrix(
// evaluated.get<FillTranslate>(), evaluated.get<FillTranslateAnchor>(),
// parameters.state),
// parameters.backend.getDefaultRenderable().getSize(),
// tile.getIconAtlasTexture().size,
// crossfade,
// tile.id,
// parameters.state,
// parameters.pixelRatio),
// paintPropertyBinders,
// evaluated,
// static_cast<float>(parameters.state.getZoom()));
// const auto allAttributeBindings = programInstance.computeAllAttributeBindings(
// *bucket.vertexBuffer, paintPropertyBinders, evaluated);
//
// checkRenderability(parameters, programInstance.activeBindingCount(allAttributeBindings));
//
// programInstance.draw(parameters.context,
// *parameters.renderPass,
// drawMode,
// depthMode,
// parameters.stencilModeForClipping(tile.id),
// parameters.colorModeForRenderPass(),
// gfx::CullFaceMode::disabled(),
// indexBuffer,
// segments,
// allUniformValues,
// allAttributeBindings,
// std::forward<decltype(textureBindings)>(textureBindings),
// getID());
// };
//
// if (bucket.triangleIndexBuffer) {
// draw(*fillPatternProgram,
// gfx::Triangles(),
// parameters.depthModeForSublayer(1, gfx::DepthMaskType::ReadWrite),
// *bucket.triangleIndexBuffer,
// bucket.triangleSegments,
// FillPatternProgram::TextureBindings{
// textures::image::Value{tile.getIconAtlasTexture().getResource(),
// gfx::TextureFilterType::Linear},
// });
// }
// if (evaluated.get<FillAntialias>() && unevaluated.get<FillOutlineColor>().isUndefined()) {
// draw(*fillOutlinePatternProgram,
// gfx::Lines{2.0f},
// parameters.depthModeForSublayer(2, gfx::DepthMaskType::ReadOnly),
// *bucket.lineIndexBuffer,
// bucket.lineSegments,
// FillOutlinePatternProgram::TextureBindings{
// textures::image::Value{tile.getIconAtlasTexture().getResource(),
// gfx::TextureFilterType::Linear},
// });
// }
// }
}
}
} // namespace mbgl