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#ifndef MBGL_RENDERER_BUCKET
#define MBGL_RENDERER_BUCKET
#include <mbgl/platform/gl.hpp>
#include <mbgl/renderer/render_pass.hpp>
#include <mbgl/util/noncopyable.hpp>
#include <mbgl/util/mat4.hpp>
#include <atomic>
#define BUFFER_OFFSET_0 ((GLbyte*)nullptr)
#define BUFFER_OFFSET(i) ((BUFFER_OFFSET_0) + (i))
namespace mbgl {
class Painter;
class StyleLayer;
class TileID;
class CollisionTile;
class Bucket : private util::noncopyable {
public:
Bucket() : uploaded(false) {}
// As long as this bucket has a Prepare render pass, this function is getting called. Typically,
// this only happens once when the bucket is being rendered for the first time.
virtual void upload() = 0;
// Every time this bucket is getting rendered, this function is called. This happens either
// once or twice (for Opaque and Transparent render passes).
virtual void render(Painter&, const StyleLayer&, const TileID&, const mat4&) = 0;
virtual ~Bucket() = default;
virtual bool hasData() const = 0;
inline bool needsUpload() const {
return !uploaded;
}
virtual void placeFeatures(CollisionTile&) {}
virtual void swapRenderData() {}
protected:
std::atomic<bool> uploaded;
};
} // namespace mbgl
#endif
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