reworked to ElemBase *
parent
5b4b16f360
commit
959c0e8907
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@ -1,5 +1,7 @@
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#include "BlenderCustomData.h"
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#include "BlenderDNA.h"
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#include <array>
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#include <functional>
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namespace Assimp {
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namespace Blender {
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@ -20,52 +22,32 @@ namespace Assimp {
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/**
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* @brief pointer to function read memory for n CustomData types
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*/
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typedef bool(*PRead)(void *pOut, const size_t cnt, const FileDatabase &db);
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/**
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* @brief pointer to function read memory for cnt CustomData types
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*/
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typedef uint8_t *(*PAlloc)(const size_t cnt);
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typedef bool (*PRead)(ElemBase *pOut, const size_t cnt, const FileDatabase &db);
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typedef ElemBase * (*PCreate)(const size_t cnt);
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typedef void (*PDestroy)(ElemBase *);
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/**
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* @brief helper macro to define Structure specific read function
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* for ex: when used like
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*
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* IMPL_STRUCT_READ(MLoop)
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*
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* following function is implemented
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*
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* bool readMLoop(void *v, const size_t cnt, const FileDatabase &db) {
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* return read<MLoop>(db.dna["MLoop"], static_cast<MLoop *>(v), cnt, db);
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* }
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*/
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#define IMPL_STRUCT_READ(ty) \
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bool read##ty(void *v, const size_t cnt, const FileDatabase &db) { \
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bool read##ty(ElemBase *v, const size_t cnt, const FileDatabase &db) { \
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return read<ty>(db.dna[#ty], static_cast<ty *>(v), cnt, db); \
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}
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/**
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* @brief helper macro to define Structure specific alloc function
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* for ex: when used like
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*
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* IMPL_STRUCT_ALLOC(MLoop)
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*
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* following function is implemented
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*
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* void * allocMLoop(const size_t cnt) {
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* return new uint8_t[cnt * sizeof MLoop];
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* }
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*/
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#define IMPL_STRUCT_ALLOC(ty) \
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uint8_t *alloc##ty(const size_t cnt) { \
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return static_cast<uint8_t *>(malloc(cnt * sizeof(ty))); \
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#define IMPL_STRUCT_CREATE(ty) \
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ElemBase *create##ty(const size_t cnt) { \
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return new ty[cnt]; \
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}
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#define IMPL_STRUCT_DESTROY(ty) \
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void destroy##ty(ElemBase *p) { \
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delete[]p; \
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}
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/**
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* @brief helper macro to define Structure functions
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*/
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#define IMPL_STRUCT(ty) \
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IMPL_STRUCT_ALLOC(ty) \
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IMPL_STRUCT_READ(ty)
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IMPL_STRUCT_READ(ty) \
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IMPL_STRUCT_CREATE(ty) \
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IMPL_STRUCT_DESTROY(ty)
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// supported structures for CustomData
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IMPL_STRUCT(MVert)
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@ -83,26 +65,29 @@ namespace Assimp {
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*/
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struct CustomDataTypeDescription {
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PRead Read; ///< function to read one CustomData type element
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PAlloc Alloc; ///< function to allocate n type elements
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PCreate Create; ///< function to allocate n type elements
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PDestroy Destroy;
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CustomDataTypeDescription(PRead read, PAlloc alloc)
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CustomDataTypeDescription(PRead read, PCreate create, PDestroy destroy)
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: Read(read)
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, Alloc(alloc)
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, Create(create)
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, Destroy(destroy)
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{}
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};
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/**
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* @brief helper macro to define Structure type specific CustomDataTypeDescription
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* @note IMPL_STRUCT_READ for same ty must be used earlier to implement the typespecific read function
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*/
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#define DECL_STRUCT_CUSTOMDATATYPEDESCRIPTION(ty) \
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CustomDataTypeDescription(&read##ty, &alloc##ty)
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CustomDataTypeDescription{&read##ty, &create##ty, &destroy##ty}
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/**
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* @brief helper macro to define CustomDataTypeDescription for UNSUPPORTED type
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*/
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#define DECL_UNSUPPORTED_CUSTOMDATATYPEDESCRIPTION \
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CustomDataTypeDescription(nullptr, nullptr)
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CustomDataTypeDescription{nullptr, nullptr, nullptr}
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/**
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* @brief descriptors for data pointed to from CustomDataLayer.data
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@ -164,15 +149,15 @@ namespace Assimp {
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return cdtype >= 0 && cdtype < CD_NUMTYPES;
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}
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bool readCustomData(std::shared_ptr<uint8_t> &out, const int cdtype, const size_t cnt, const FileDatabase &db) {
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bool readCustomData(std::shared_ptr<ElemBase> &out, const int cdtype, const size_t cnt, const FileDatabase &db) {
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if (!isValidCustomDataType(cdtype)) {
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throw Error((Formatter::format(), "CustomData.type ", cdtype, " out of index"));
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}
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const CustomDataTypeDescription cdtd = customDataTypeDescriptions[cdtype];
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if (cdtd.Read && cdtd.Alloc) {
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// allocate cnt elements and parse them from file
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out.reset(cdtd.Alloc(cnt), free);
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if (cdtd.Read && cdtd.Create && cdtd.Destroy) {
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// allocate cnt elements and parse them from file
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out.reset(cdtd.Create(cnt), cdtd.Destroy);
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return cdtd.Read(out.get(), cnt, db);
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}
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return false;
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@ -329,7 +329,7 @@ public:
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* @return true when read was successful
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*/
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template <int error_policy>
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bool ReadCustomDataPtr(std::shared_ptr<uint8_t>&out, int cdtype, const char* name, const FileDatabase& db) const;
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bool ReadCustomDataPtr(std::shared_ptr<ElemBase>&out, int cdtype, const char* name, const FileDatabase& db) const;
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private:
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@ -833,7 +833,7 @@ private:
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* @param[in] db to read elements from
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* @return true when ok
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*/
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bool readCustomData(std::shared_ptr<uint8_t> &out, int cdtype, size_t cnt, const FileDatabase &db);
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bool readCustomData(std::shared_ptr<ElemBase> &out, int cdtype, size_t cnt, const FileDatabase &db);
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} // end Blend
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@ -310,7 +310,7 @@ void Structure :: ReadField(T& out, const char* name, const FileDatabase& db) co
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//--------------------------------------------------------------------------------
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// field parsing for raw untyped data (like CustomDataLayer.data)
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template <int error_policy>
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bool Structure::ReadCustomDataPtr(std::shared_ptr<uint8_t>&out, int cdtype, const char* name, const FileDatabase& db) const {
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bool Structure::ReadCustomDataPtr(std::shared_ptr<ElemBase>&out, int cdtype, const char* name, const FileDatabase& db) const {
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const StreamReaderAny::pos old = db.reader->GetCurrentPos();
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@ -399,7 +399,7 @@ struct CustomDataLayer : ElemBase {
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int active_mask;
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int uid;
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char name[64];
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std::shared_ptr<uint8_t> data; // must be converted to real type according type member, usage of uint8_t since
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std::shared_ptr<ElemBase> data; // must be converted to real type according type member
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CustomDataLayer()
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: ElemBase()
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