tei/MapLibreParticleLab
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

rename Tile to TileData

Browse Source
This commit is contained in:
Konstantin Käfer
2014-03-04 17:53:16 +01:00
parent ba5070bf52
commit b0ddabd6ac
8 changed files with 352 additions and 325 deletions
Download Patch File Download Diff File Expand all files Collapse all files

209
src/map/tile.cpp
View File

@@ -1,18 +1,6 @@
#include <llmr/map/tile.hpp>
#include <llmr/style/style.hpp>
#include <llmr/map/vector_tile.hpp>
#include <llmr/geometry/fill_buffer.hpp>
#include <llmr/geometry/line_buffer.hpp>
#include <llmr/geometry/point_buffer.hpp>
#include <llmr/geometry/elements_buffer.hpp>
#include <llmr/renderer/fill_bucket.hpp>
#include <llmr/renderer/line_bucket.hpp>
#include <llmr/renderer/point_bucket.hpp>
#include <llmr/util/pbf.hpp>
#include <llmr/util/string.hpp>
#include <chrono>
#include <cassert>
using namespace llmr;
@@ -41,198 +29,3 @@ std::forward_list<Tile::ID> Tile::children(const ID& id, int32_t z) {
return children;
}
Tile::Tile(ID id, const Style& style)
: id(id),
state(initial),
fillVertexBuffer(std::make_shared<FillVertexBuffer>()),
lineVertexBuffer(std::make_shared<LineVertexBuffer>()),
pointVertexBuffer(std::make_shared<PointVertexBuffer>()),
triangleElementsBuffer(std::make_shared<TriangleElementsBuffer>()),
lineElementsBuffer(std::make_shared<LineElementsBuffer>()),
pointElementsBuffer(std::make_shared<PointElementsBuffer>()),
style(style) {
// Initialize tile debug coordinates
char coord[32];
snprintf(coord, sizeof(coord), "%d/%d/%d", id.z, id.x, id.y);
debugFontBuffer.addText(coord, 50, 200, 5);
}
Tile::~Tile() {
}
const std::string Tile::toString() const {
return util::sprintf("[tile %d/%d/%d]", id.z, id.x, id.y);
}
void Tile::request() {
state = Tile::loading;
// Create http request
std::string url = util::sprintf(kTileURL,
id.z, id.x, id.y);
// Note: Somehow this feels slower than the change to request_http()
std::shared_ptr<Tile> tile = shared_from_this();
platform::Request *request = platform::request_http(url, [=](platform::Response& res) {
if (res.code == 200 && tile->state != obsolete) {
tile->state = Tile::loaded;
tile->data.swap(res.body);
tile->parse();
} else if (tile->state != obsolete) {
fprintf(stderr, "tile loading failed\n");
}
}, []() {
platform::restart();
});
req = request;
}
void Tile::cancel() {
// TODO: thread safety
if (state != obsolete) {
state = obsolete;
platform::cancel_request_http(req);
} else {
assert((!"logic error? multiple cancelleations"));
}
}
bool Tile::parse() {
// std::lock_guard<std::mutex> lock(mtx);
if (state != loaded) {
return false;
}
try {
VectorTile tile(pbf((const uint8_t *)data.data(), data.size()));
parseStyleLayers(tile, style.layers);
} catch (const std::exception& ex) {
fprintf(stderr, "[%p] exception [%d/%d/%d]... failed: %s\n", this, id.z, id.x, id.y, ex.what());
cancel();
return false;
}
if (state == obsolete) {
return false;
} else {
state = parsed;
}
return true;
}
void Tile::parseStyleLayers(const VectorTile& tile, const std::vector<LayerDescription>& layers) {
for (const LayerDescription& layer_desc : layers) {
if (layer_desc.child_layer.size()) {
// This is a layer group.
// TODO: create framebuffer
parseStyleLayers(tile, layer_desc.child_layer);
// TODO: render framebuffer on previous framebuffer
} else {
// This is a singular layer. Check if this bucket already exists. If not,
// parse this bucket.
auto bucket_it = buckets.find(layer_desc.bucket_name);
if (bucket_it == buckets.end()) {
auto bucket_it = style.buckets.find(layer_desc.bucket_name);
if (bucket_it != style.buckets.end()) {
// Only create the new bucket if we have an actual specification
// for it.
std::shared_ptr<Bucket> bucket = createBucket(tile, bucket_it->second);
if (bucket) {
// Bucket creation might fail because the data tile may not
// contain any data that falls into this bucket.
buckets[layer_desc.bucket_name] = bucket;
}
} else {
// There is no proper specification for this bucket, even though
// it is referenced in the stylesheet.
fprintf(stderr, "Stylesheet specifies bucket %s, but it is not defined\n", layer_desc.bucket_name.c_str());
}
}
}
}
}
std::shared_ptr<Bucket> Tile::createBucket(const VectorTile& tile, const BucketDescription& bucket_desc) {
auto layer_it = tile.layers.find(bucket_desc.source_layer);
if (layer_it != tile.layers.end()) {
const VectorTileLayer& layer = layer_it->second;
if (bucket_desc.type == BucketType::Fill) {
return createFillBucket(layer, bucket_desc);
} else if (bucket_desc.type == BucketType::Line) {
return createLineBucket(layer, bucket_desc);
} else if (bucket_desc.type == BucketType::Point) {
return createPointBucket(layer, bucket_desc);
} else {
// TODO: create other bucket types.
}
} else {
// The layer specified in the bucket does not exist. Do nothing.
}
return nullptr;
}
std::shared_ptr<Bucket> Tile::createFillBucket(const VectorTileLayer& layer, const BucketDescription& bucket_desc) {
std::shared_ptr<FillBucket> bucket = std::make_shared<FillBucket>(fillVertexBuffer, triangleElementsBuffer, lineElementsBuffer, bucket_desc);
// auto init_start = std::chrono::high_resolution_clock::now();
FilteredVectorTileLayer filtered_layer(layer, bucket_desc);
for (pbf feature : filtered_layer) {
while (feature.next(4)) { // geometry
pbf geometry_pbf = feature.message();
if (geometry_pbf) {
bucket->addGeometry(geometry_pbf);
bucket->tessellate();
}
}
}
// auto init_end = std::chrono::high_resolution_clock::now();
// auto init = (double)std::chrono::duration_cast<std::chrono::microseconds>(init_end - init_start).count() / 1000.0;
// auto tess_start = std::chrono::high_resolution_clock::now();
// auto tess_end = std::chrono::high_resolution_clock::now();
// auto tess = (double)std::chrono::duration_cast<std::chrono::microseconds>(tess_end - tess_start).count() / 1000.0;
// fprintf(stderr, "%s/%s init: %f tess: %f\n", bucket_desc.source_layer.c_str(), bucket_desc.source_field.c_str(), init, tess);
return bucket;
}
std::shared_ptr<Bucket> Tile::createLineBucket(const VectorTileLayer& layer, const BucketDescription& bucket_desc) {
std::shared_ptr<LineBucket> bucket = std::make_shared<LineBucket>(lineVertexBuffer, triangleElementsBuffer, pointElementsBuffer, bucket_desc);
FilteredVectorTileLayer filtered_layer(layer, bucket_desc);
for (pbf feature : filtered_layer) {
while (feature.next(4)) { // geometry
pbf geometry_pbf = feature.message();
if (geometry_pbf) {
bucket->addGeometry(geometry_pbf);
}
}
}
return bucket;
}
std::shared_ptr<Bucket> Tile::createPointBucket(const VectorTileLayer& layer, const BucketDescription& bucket_desc) {
std::shared_ptr<PointBucket> bucket = std::make_shared<PointBucket>(pointVertexBuffer, bucket_desc);
FilteredVectorTileLayer filtered_layer(layer, bucket_desc);
for (pbf feature : filtered_layer) {
while (feature.next(4)) { // geometry
pbf geometry_pbf = feature.message();
if (geometry_pbf) {
bucket->addGeometry(geometry_pbf);
}
}
}
return bucket;
}