53 lines
1.5 KiB
C++
53 lines
1.5 KiB
C++
#include <llmr/renderer/point_bucket.hpp>
|
|
#include <llmr/geometry/point_buffer.hpp>
|
|
#include <llmr/geometry/elements_buffer.hpp>
|
|
#include <llmr/geometry/geometry.hpp>
|
|
|
|
#include <llmr/renderer/painter.hpp>
|
|
#include <llmr/style/style.hpp>
|
|
#include <llmr/map/vector_tile.hpp>
|
|
|
|
#include <llmr/platform/gl.hpp>
|
|
|
|
#include <cassert>
|
|
|
|
struct geometry_too_long_exception : std::exception {};
|
|
|
|
using namespace llmr;
|
|
|
|
PointBucket::PointBucket(const std::shared_ptr<PointVertexBuffer>& vertexBuffer,
|
|
const BucketDescription& bucket_desc)
|
|
: geometry(bucket_desc.geometry),
|
|
vertexBuffer(vertexBuffer),
|
|
vertex_start(vertexBuffer->index()) {
|
|
}
|
|
|
|
void PointBucket::addGeometry(pbf& geom) {
|
|
Geometry::command cmd;
|
|
Geometry geometry(geom);
|
|
int32_t x, y;
|
|
while ((cmd = geometry.next(x, y)) != Geometry::end) {
|
|
if (cmd == Geometry::move_to) {
|
|
vertexBuffer->add(x, y);
|
|
} else {
|
|
fprintf(stderr, "other command than move_to in point geometry\n");
|
|
}
|
|
}
|
|
|
|
vertex_end = vertexBuffer->index();
|
|
}
|
|
|
|
void PointBucket::render(Painter& painter, const std::string& layer_name, const Tile::ID& id) {
|
|
painter.renderPoint(*this, layer_name, id);
|
|
}
|
|
|
|
bool PointBucket::hasPoints() const {
|
|
return vertex_end > 0;
|
|
}
|
|
|
|
void PointBucket::drawPoints(PointShader& shader) {
|
|
char *vertex_index = BUFFER_OFFSET(vertex_start * vertexBuffer->itemSize);
|
|
array.bind(shader, *vertexBuffer, vertex_index);
|
|
glDrawArrays(GL_POINTS, 0, (GLsizei)(vertex_end - vertex_start));
|
|
}
|