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-rw-r--r--include/ingen/AtomForge.hpp74
1 files changed, 15 insertions, 59 deletions
diff --git a/include/ingen/AtomForge.hpp b/include/ingen/AtomForge.hpp
index cf5a759d..b1e5a5df 100644
--- a/include/ingen/AtomForge.hpp
+++ b/include/ingen/AtomForge.hpp
@@ -17,55 +17,41 @@
#ifndef INGEN_ATOMFORGE_HPP
#define INGEN_ATOMFORGE_HPP
+#include "ingen/ingen.h"
#include "ingen/memory.hpp"
#include "lv2/atom/atom.h"
#include "lv2/atom/forge.h"
-#include "lv2/atom/util.h"
#include "lv2/urid/urid.h"
#include "sord/sord.h"
-#include "sord/sordmm.hpp"
#include "sratom/sratom.h"
-#include <cassert>
#include <cstdint>
#include <cstdlib>
-#include <cstring>
#include <memory>
+namespace Sord {
+class World;
+} // namespace Sord
+
namespace ingen {
/// An atom forge that writes to an automatically-resized memory buffer
-class AtomForge : public LV2_Atom_Forge
+class INGEN_API AtomForge : public LV2_Atom_Forge
{
public:
- explicit AtomForge(LV2_URID_Map& map)
- : LV2_Atom_Forge{}
- , _sratom{sratom_new(&map)}
- , _buf{static_cast<LV2_Atom*>(calloc(8, sizeof(LV2_Atom)))}
- {
- lv2_atom_forge_init(this, &map);
- lv2_atom_forge_set_sink(this, c_append, c_deref, this);
- }
+ explicit AtomForge(LV2_URID_Map& map);
/// Forge an atom from `node` in `model`
- void read(Sord::World& world, SordModel* model, const SordNode* node)
- {
- sratom_read(_sratom.get(), this, world.c_obj(), model, node);
- }
+ void read(Sord::World& world, SordModel* model, const SordNode* node);
/// Return the top-level atom that has been forged
- const LV2_Atom* atom() const { return _buf.get(); }
+ const LV2_Atom* atom() const;
/// Clear the atom buffer and reset the forge
- void clear()
- {
- lv2_atom_forge_set_sink(this, c_append, c_deref, this);
- _size = 0;
- *_buf = {0U, 0U};
- }
+ void clear();
/// Return the internal atom serialiser
- Sratom& sratom() { return *_sratom; }
+ Sratom& sratom();
private:
struct SratomDeleter { void operator()(Sratom* s) { sratom_free(s); } };
@@ -74,46 +60,16 @@ private:
using SratomPtr = std::unique_ptr<Sratom, SratomDeleter>;
/// Append some data and return a reference to its start
- intptr_t append(const void* data, uint32_t len) {
- // Record offset of the start of this write (+1 to avoid null)
- const auto ref = static_cast<intptr_t>(_size + 1U);
-
- // Update size and reallocate if necessary
- if (lv2_atom_pad_size(_size + len) > _capacity) {
- _capacity = lv2_atom_pad_size(_size + len);
-
- _buf = AtomPtr{static_cast<LV2_Atom*>(
- realloc(_buf.release(), _capacity)),
- FreeDeleter<LV2_Atom>{}};
- }
-
- // Append new data
- memcpy(reinterpret_cast<uint8_t*>(_buf.get()) + _size, data, len);
- _size += len;
- return ref;
- }
+ intptr_t append(const void* data, uint32_t len);
/// Dereference a reference previously returned by append()
- LV2_Atom* deref(intptr_t ref) {
- /* Make some assumptions and do unnecessary math to appease
- -Wcast-align. This is questionable at best, though the forge should
- only dereference references to aligned atoms. */
- assert((ref - 1) % sizeof(LV2_Atom) == 0);
- return static_cast<LV2_Atom*>(_buf.get() + (ref - 1) / sizeof(LV2_Atom));
-
- // Alternatively:
- // return (LV2_Atom*)((uint8_t*)_buf + ref - 1);
- }
+ LV2_Atom* deref(intptr_t ref);
static LV2_Atom_Forge_Ref
- c_append(void* self, const void* data, uint32_t len) {
- return static_cast<AtomForge*>(self)->append(data, len);
- }
+ c_append(void* self, const void* data, uint32_t len);
static LV2_Atom*
- c_deref(void* self, LV2_Atom_Forge_Ref ref) {
- return static_cast<AtomForge*>(self)->deref(ref);
- }
+ c_deref(void* self, LV2_Atom_Forge_Ref ref);
size_t _size{0}; ///< Current atom size
size_t _capacity{8 * sizeof(LV2_Atom)}; ///< Allocated size of buffer