diff options
Diffstat (limited to 'libs/assimp/code/AssetLib/FBX/FBXParser.cpp')
| -rw-r--r-- | libs/assimp/code/AssetLib/FBX/FBXParser.cpp | 1314 |
1 files changed, 0 insertions, 1314 deletions
diff --git a/libs/assimp/code/AssetLib/FBX/FBXParser.cpp b/libs/assimp/code/AssetLib/FBX/FBXParser.cpp deleted file mode 100644 index e20377a..0000000 --- a/libs/assimp/code/AssetLib/FBX/FBXParser.cpp +++ /dev/null @@ -1,1314 +0,0 @@ -/* -Open Asset Import Library (assimp) ----------------------------------------------------------------------- - -Copyright (c) 2006-2022, assimp team - -All rights reserved. - -Redistribution and use of this software in source and binary forms, -with or without modification, are permitted provided that the -following conditions are met: - -* Redistributions of source code must retain the above - copyright notice, this list of conditions and the - following disclaimer. - -* Redistributions in binary form must reproduce the above - copyright notice, this list of conditions and the - following disclaimer in the documentation and/or other - materials provided with the distribution. - -* Neither the name of the assimp team, nor the names of its - contributors may be used to endorse or promote products - derived from this software without specific prior - written permission of the assimp team. - -THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS -"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT -LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR -A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT -OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, -SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT -LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, -DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY -THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT -(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE -OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. - ----------------------------------------------------------------------- -*/ - -/** @file FBXParser.cpp - * @brief Implementation of the FBX parser and the rudimentary DOM that we use - */ - -#ifndef ASSIMP_BUILD_NO_FBX_IMPORTER - -//#ifdef ASSIMP_BUILD_NO_OWN_ZLIB -#include "Common/Compression.h" -//# include <zlib.h> -//#else -//# include "../contrib/zlib/zlib.h" -//#endif - -#include "FBXTokenizer.h" -#include "FBXParser.h" -#include "FBXUtil.h" - -#include <assimp/ParsingUtils.h> -#include <assimp/fast_atof.h> -#include <assimp/ByteSwapper.h> -#include <assimp/DefaultLogger.hpp> - -#include <iostream> - -using namespace Assimp; -using namespace Assimp::FBX; - -namespace { - - // ------------------------------------------------------------------------------------------------ - // signal parse error, this is always unrecoverable. Throws DeadlyImportError. - AI_WONT_RETURN void ParseError(const std::string& message, const Token& token) AI_WONT_RETURN_SUFFIX; - AI_WONT_RETURN void ParseError(const std::string& message, const Token& token) - { - throw DeadlyImportError("FBX-Parser", Util::GetTokenText(&token), message); - } - - // ------------------------------------------------------------------------------------------------ - AI_WONT_RETURN void ParseError(const std::string &message, const Element *element = nullptr) AI_WONT_RETURN_SUFFIX; - AI_WONT_RETURN void ParseError(const std::string& message, const Element* element) - { - if(element) { - ParseError(message,element->KeyToken()); - } - throw DeadlyImportError("FBX-Parser ", message); - } - - - // ------------------------------------------------------------------------------------------------ - void ParseError(const std::string& message, TokenPtr token) - { - if(token) { - ParseError(message, *token); - } - ParseError(message); - } - - // Initially, we did reinterpret_cast, breaking strict aliasing rules. - // This actually caused trouble on Android, so let's be safe this time. - // https://github.com/assimp/assimp/issues/24 - template <typename T> - T SafeParse(const char* data, const char* end) { - // Actual size validation happens during Tokenization so - // this is valid as an assertion. - (void)(end); - ai_assert(static_cast<size_t>(end - data) >= sizeof(T)); - T result = static_cast<T>(0); - ::memcpy(&result, data, sizeof(T)); - return result; - } -} - -namespace Assimp { -namespace FBX { - -// ------------------------------------------------------------------------------------------------ -Element::Element(const Token& key_token, Parser& parser) : key_token(key_token) { - TokenPtr n = nullptr; - do { - n = parser.AdvanceToNextToken(); - if(!n) { - ParseError("unexpected end of file, expected closing bracket",parser.LastToken()); - } - - if (n->Type() == TokenType_DATA) { - tokens.push_back(n); - TokenPtr prev = n; - n = parser.AdvanceToNextToken(); - if(!n) { - ParseError("unexpected end of file, expected bracket, comma or key",parser.LastToken()); - } - - const TokenType ty = n->Type(); - - // some exporters are missing a comma on the next line - if (ty == TokenType_DATA && prev->Type() == TokenType_DATA && (n->Line() == prev->Line() + 1)) { - tokens.push_back(n); - continue; - } - - if (ty != TokenType_OPEN_BRACKET && ty != TokenType_CLOSE_BRACKET && ty != TokenType_COMMA && ty != TokenType_KEY) { - ParseError("unexpected token; expected bracket, comma or key",n); - } - } - - if (n->Type() == TokenType_OPEN_BRACKET) { - compound.reset(new Scope(parser)); - - // current token should be a TOK_CLOSE_BRACKET - n = parser.CurrentToken(); - ai_assert(n); - - if (n->Type() != TokenType_CLOSE_BRACKET) { - ParseError("expected closing bracket",n); - } - - parser.AdvanceToNextToken(); - return; - } - } - while(n->Type() != TokenType_KEY && n->Type() != TokenType_CLOSE_BRACKET); -} - -// ------------------------------------------------------------------------------------------------ -Element::~Element() -{ - // no need to delete tokens, they are owned by the parser -} - -// ------------------------------------------------------------------------------------------------ -Scope::Scope(Parser& parser,bool topLevel) -{ - if(!topLevel) { - TokenPtr t = parser.CurrentToken(); - if (t->Type() != TokenType_OPEN_BRACKET) { - ParseError("expected open bracket",t); - } - } - - TokenPtr n = parser.AdvanceToNextToken(); - if (n == nullptr) { - ParseError("unexpected end of file"); - } - - // note: empty scopes are allowed - while(n->Type() != TokenType_CLOSE_BRACKET) { - if (n->Type() != TokenType_KEY) { - ParseError("unexpected token, expected TOK_KEY",n); - } - - const std::string& str = n->StringContents(); - if (str.empty()) { - ParseError("unexpected content: empty string."); - } - - elements.insert(ElementMap::value_type(str,new_Element(*n,parser))); - - // Element() should stop at the next Key token (or right after a Close token) - n = parser.CurrentToken(); - if (n == nullptr) { - if (topLevel) { - return; - } - ParseError("unexpected end of file",parser.LastToken()); - } - } -} - -// ------------------------------------------------------------------------------------------------ -Scope::~Scope() { - for(ElementMap::value_type& v : elements) { - delete v.second; - } -} - -// ------------------------------------------------------------------------------------------------ -Parser::Parser (const TokenList& tokens, bool is_binary) -: tokens(tokens) -, last() -, current() -, cursor(tokens.begin()) -, is_binary(is_binary) -{ - ASSIMP_LOG_DEBUG("Parsing FBX tokens"); - root.reset(new Scope(*this,true)); -} - -// ------------------------------------------------------------------------------------------------ -Parser::~Parser() -{ - // empty -} - -// ------------------------------------------------------------------------------------------------ -TokenPtr Parser::AdvanceToNextToken() -{ - last = current; - if (cursor == tokens.end()) { - current = nullptr; - } else { - current = *cursor++; - } - return current; -} - -// ------------------------------------------------------------------------------------------------ -TokenPtr Parser::CurrentToken() const -{ - return current; -} - -// ------------------------------------------------------------------------------------------------ -TokenPtr Parser::LastToken() const -{ - return last; -} - -// ------------------------------------------------------------------------------------------------ -uint64_t ParseTokenAsID(const Token& t, const char*& err_out) -{ - err_out = nullptr; - - if (t.Type() != TokenType_DATA) { - err_out = "expected TOK_DATA token"; - return 0L; - } - - if(t.IsBinary()) - { - const char* data = t.begin(); - if (data[0] != 'L') { - err_out = "failed to parse ID, unexpected data type, expected L(ong) (binary)"; - return 0L; - } - - BE_NCONST uint64_t id = SafeParse<uint64_t>(data+1, t.end()); - AI_SWAP8(id); - return id; - } - - // XXX: should use size_t here - unsigned int length = static_cast<unsigned int>(t.end() - t.begin()); - ai_assert(length > 0); - - const char* out = nullptr; - const uint64_t id = strtoul10_64(t.begin(),&out,&length); - if (out > t.end()) { - err_out = "failed to parse ID (text)"; - return 0L; - } - - return id; -} - -// ------------------------------------------------------------------------------------------------ -size_t ParseTokenAsDim(const Token& t, const char*& err_out) -{ - // same as ID parsing, except there is a trailing asterisk - err_out = nullptr; - - if (t.Type() != TokenType_DATA) { - err_out = "expected TOK_DATA token"; - return 0; - } - - if(t.IsBinary()) - { - const char* data = t.begin(); - if (data[0] != 'L') { - err_out = "failed to parse ID, unexpected data type, expected L(ong) (binary)"; - return 0; - } - - BE_NCONST uint64_t id = SafeParse<uint64_t>(data+1, t.end()); - AI_SWAP8(id); - return static_cast<size_t>(id); - } - - if(*t.begin() != '*') { - err_out = "expected asterisk before array dimension"; - return 0; - } - - // XXX: should use size_t here - unsigned int length = static_cast<unsigned int>(t.end() - t.begin()); - if(length == 0) { - err_out = "expected valid integer number after asterisk"; - return 0; - } - - const char* out = nullptr; - const size_t id = static_cast<size_t>(strtoul10_64(t.begin() + 1,&out,&length)); - if (out > t.end()) { - err_out = "failed to parse ID"; - return 0; - } - - return id; -} - - -// ------------------------------------------------------------------------------------------------ -float ParseTokenAsFloat(const Token& t, const char*& err_out) -{ - err_out = nullptr; - - if (t.Type() != TokenType_DATA) { - err_out = "expected TOK_DATA token"; - return 0.0f; - } - - if(t.IsBinary()) - { - const char* data = t.begin(); - if (data[0] != 'F' && data[0] != 'D') { - err_out = "failed to parse F(loat) or D(ouble), unexpected data type (binary)"; - return 0.0f; - } - - if (data[0] == 'F') { - return SafeParse<float>(data+1, t.end()); - } - else { - return static_cast<float>( SafeParse<double>(data+1, t.end()) ); - } - } - - // need to copy the input string to a temporary buffer - // first - next in the fbx token stream comes ',', - // which fast_atof could interpret as decimal point. -#define MAX_FLOAT_LENGTH 31 - const size_t length = static_cast<size_t>(t.end()-t.begin()); - if (length > MAX_FLOAT_LENGTH) { - return 0.f; - } - - char temp[MAX_FLOAT_LENGTH + 1]; - std::copy(t.begin(), t.end(), temp); - temp[std::min(static_cast<size_t>(MAX_FLOAT_LENGTH),length)] = '\0'; - - return fast_atof(temp); -} - - -// ------------------------------------------------------------------------------------------------ -int ParseTokenAsInt(const Token& t, const char*& err_out) -{ - err_out = nullptr; - - if (t.Type() != TokenType_DATA) { - err_out = "expected TOK_DATA token"; - return 0; - } - - if(t.IsBinary()) - { - const char* data = t.begin(); - if (data[0] != 'I') { - err_out = "failed to parse I(nt), unexpected data type (binary)"; - return 0; - } - - BE_NCONST int32_t ival = SafeParse<int32_t>(data+1, t.end()); - AI_SWAP4(ival); - return static_cast<int>(ival); - } - - ai_assert(static_cast<size_t>(t.end() - t.begin()) > 0); - - const char* out; - const int intval = strtol10(t.begin(),&out); - if (out != t.end()) { - err_out = "failed to parse ID"; - return 0; - } - - return intval; -} - - -// ------------------------------------------------------------------------------------------------ -int64_t ParseTokenAsInt64(const Token& t, const char*& err_out) -{ - err_out = nullptr; - - if (t.Type() != TokenType_DATA) { - err_out = "expected TOK_DATA token"; - return 0L; - } - - if (t.IsBinary()) - { - const char* data = t.begin(); - if (data[0] != 'L') { - err_out = "failed to parse Int64, unexpected data type"; - return 0L; - } - - BE_NCONST int64_t id = SafeParse<int64_t>(data + 1, t.end()); - AI_SWAP8(id); - return id; - } - - // XXX: should use size_t here - unsigned int length = static_cast<unsigned int>(t.end() - t.begin()); - ai_assert(length > 0); - - const char* out = nullptr; - const int64_t id = strtol10_64(t.begin(), &out, &length); - if (out > t.end()) { - err_out = "failed to parse Int64 (text)"; - return 0L; - } - - return id; -} - -// ------------------------------------------------------------------------------------------------ -std::string ParseTokenAsString(const Token& t, const char*& err_out) -{ - err_out = nullptr; - - if (t.Type() != TokenType_DATA) { - err_out = "expected TOK_DATA token"; - return std::string(); - } - - if(t.IsBinary()) - { - const char* data = t.begin(); - if (data[0] != 'S') { - err_out = "failed to parse S(tring), unexpected data type (binary)"; - return std::string(); - } - - // read string length - BE_NCONST int32_t len = SafeParse<int32_t>(data+1, t.end()); - AI_SWAP4(len); - - ai_assert(t.end() - data == 5 + len); - return std::string(data + 5, len); - } - - const size_t length = static_cast<size_t>(t.end() - t.begin()); - if(length < 2) { - err_out = "token is too short to hold a string"; - return std::string(); - } - - const char* s = t.begin(), *e = t.end() - 1; - if (*s != '\"' || *e != '\"') { - err_out = "expected double quoted string"; - return std::string(); - } - - return std::string(s+1,length-2); -} - - -namespace { - -// ------------------------------------------------------------------------------------------------ -// read the type code and element count of a binary data array and stop there -void ReadBinaryDataArrayHead(const char*& data, const char* end, char& type, uint32_t& count, - const Element& el) -{ - if (static_cast<size_t>(end-data) < 5) { - ParseError("binary data array is too short, need five (5) bytes for type signature and element count",&el); - } - - // data type - type = *data; - - // read number of elements - BE_NCONST uint32_t len = SafeParse<uint32_t>(data+1, end); - AI_SWAP4(len); - - count = len; - data += 5; -} - - -// ------------------------------------------------------------------------------------------------ -// read binary data array, assume cursor points to the 'compression mode' field (i.e. behind the header) -void ReadBinaryDataArray(char type, uint32_t count, const char*& data, const char* end, - std::vector<char>& buff, const Element& /*el*/) { - BE_NCONST uint32_t encmode = SafeParse<uint32_t>(data, end); - AI_SWAP4(encmode); - data += 4; - - // next comes the compressed length - BE_NCONST uint32_t comp_len = SafeParse<uint32_t>(data, end); - AI_SWAP4(comp_len); - data += 4; - - ai_assert(data + comp_len == end); - - // determine the length of the uncompressed data by looking at the type signature - uint32_t stride = 0; - switch(type) - { - case 'f': - case 'i': - stride = 4; - break; - - case 'd': - case 'l': - stride = 8; - break; - - default: - ai_assert(false); - }; - - const uint32_t full_length = stride * count; - buff.resize(full_length); - - if(encmode == 0) { - ai_assert(full_length == comp_len); - - // plain data, no compression - std::copy(data, end, buff.begin()); - } - else if(encmode == 1) { - // zlib/deflate, next comes ZIP head (0x78 0x01) - // see http://www.ietf.org/rfc/rfc1950.txt - Compression compress; - if (compress.open(Compression::Format::Binary, Compression::FlushMode::Finish, 0)) { - compress.decompress(data, comp_len, buff); - compress.close(); - } - } -#ifdef ASSIMP_BUILD_DEBUG - else { - // runtime check for this happens at tokenization stage - ai_assert(false); - } -#endif - - data += comp_len; - ai_assert(data == end); -} - -} // !anon - - -// ------------------------------------------------------------------------------------------------ -// read an array of float3 tuples -void ParseVectorDataArray(std::vector<aiVector3D>& out, const Element& el) -{ - out.resize( 0 ); - - const TokenList& tok = el.Tokens(); - if(tok.empty()) { - ParseError("unexpected empty element",&el); - } - - if(tok[0]->IsBinary()) { - const char* data = tok[0]->begin(), *end = tok[0]->end(); - - char type; - uint32_t count; - ReadBinaryDataArrayHead(data, end, type, count, el); - - if(count % 3 != 0) { - ParseError("number of floats is not a multiple of three (3) (binary)",&el); - } - - if(!count) { - return; - } - - if (type != 'd' && type != 'f') { - ParseError("expected float or double array (binary)",&el); - } - - std::vector<char> buff; - ReadBinaryDataArray(type, count, data, end, buff, el); - - ai_assert(data == end); - uint64_t dataToRead = static_cast<uint64_t>(count) * (type == 'd' ? 8 : 4); - if (dataToRead != buff.size()) { - ParseError("Invalid read size (binary)",&el); - } - - const uint32_t count3 = count / 3; - out.reserve(count3); - - if (type == 'd') { - const double* d = reinterpret_cast<const double*>(&buff[0]); - for (unsigned int i = 0; i < count3; ++i, d += 3) { - out.push_back(aiVector3D(static_cast<ai_real>(d[0]), - static_cast<ai_real>(d[1]), - static_cast<ai_real>(d[2]))); - } - // for debugging - /*for ( size_t i = 0; i < out.size(); i++ ) { - aiVector3D vec3( out[ i ] ); - std::stringstream stream; - stream << " vec3.x = " << vec3.x << " vec3.y = " << vec3.y << " vec3.z = " << vec3.z << std::endl; - DefaultLogger::get()->info( stream.str() ); - }*/ - } - else if (type == 'f') { - const float* f = reinterpret_cast<const float*>(&buff[0]); - for (unsigned int i = 0; i < count3; ++i, f += 3) { - out.push_back(aiVector3D(f[0],f[1],f[2])); - } - } - - return; - } - - const size_t dim = ParseTokenAsDim(*tok[0]); - - // may throw bad_alloc if the input is rubbish, but this need - // not to be prevented - importing would fail but we wouldn't - // crash since assimp handles this case properly. - out.reserve(dim); - - const Scope& scope = GetRequiredScope(el); - const Element& a = GetRequiredElement(scope,"a",&el); - - if (a.Tokens().size() % 3 != 0) { - ParseError("number of floats is not a multiple of three (3)",&el); - } - for (TokenList::const_iterator it = a.Tokens().begin(), end = a.Tokens().end(); it != end; ) { - aiVector3D v; - v.x = ParseTokenAsFloat(**it++); - v.y = ParseTokenAsFloat(**it++); - v.z = ParseTokenAsFloat(**it++); - - out.push_back(v); - } -} - -// ------------------------------------------------------------------------------------------------ -// read an array of color4 tuples -void ParseVectorDataArray(std::vector<aiColor4D>& out, const Element& el) -{ - out.resize( 0 ); - const TokenList& tok = el.Tokens(); - if(tok.empty()) { - ParseError("unexpected empty element",&el); - } - - if(tok[0]->IsBinary()) { - const char* data = tok[0]->begin(), *end = tok[0]->end(); - - char type; - uint32_t count; - ReadBinaryDataArrayHead(data, end, type, count, el); - - if(count % 4 != 0) { - ParseError("number of floats is not a multiple of four (4) (binary)",&el); - } - - if(!count) { - return; - } - - if (type != 'd' && type != 'f') { - ParseError("expected float or double array (binary)",&el); - } - - std::vector<char> buff; - ReadBinaryDataArray(type, count, data, end, buff, el); - - ai_assert(data == end); - uint64_t dataToRead = static_cast<uint64_t>(count) * (type == 'd' ? 8 : 4); - if (dataToRead != buff.size()) { - ParseError("Invalid read size (binary)",&el); - } - - const uint32_t count4 = count / 4; - out.reserve(count4); - - if (type == 'd') { - const double* d = reinterpret_cast<const double*>(&buff[0]); - for (unsigned int i = 0; i < count4; ++i, d += 4) { - out.push_back(aiColor4D(static_cast<float>(d[0]), - static_cast<float>(d[1]), - static_cast<float>(d[2]), - static_cast<float>(d[3]))); - } - } - else if (type == 'f') { - const float* f = reinterpret_cast<const float*>(&buff[0]); - for (unsigned int i = 0; i < count4; ++i, f += 4) { - out.push_back(aiColor4D(f[0],f[1],f[2],f[3])); - } - } - return; - } - - const size_t dim = ParseTokenAsDim(*tok[0]); - - // see notes in ParseVectorDataArray() above - out.reserve(dim); - - const Scope& scope = GetRequiredScope(el); - const Element& a = GetRequiredElement(scope,"a",&el); - - if (a.Tokens().size() % 4 != 0) { - ParseError("number of floats is not a multiple of four (4)",&el); - } - for (TokenList::const_iterator it = a.Tokens().begin(), end = a.Tokens().end(); it != end; ) { - aiColor4D v; - v.r = ParseTokenAsFloat(**it++); - v.g = ParseTokenAsFloat(**it++); - v.b = ParseTokenAsFloat(**it++); - v.a = ParseTokenAsFloat(**it++); - - out.push_back(v); - } -} - - -// ------------------------------------------------------------------------------------------------ -// read an array of float2 tuples -void ParseVectorDataArray(std::vector<aiVector2D>& out, const Element& el) { - out.resize( 0 ); - const TokenList& tok = el.Tokens(); - if(tok.empty()) { - ParseError("unexpected empty element",&el); - } - - if(tok[0]->IsBinary()) { - const char* data = tok[0]->begin(), *end = tok[0]->end(); - - char type; - uint32_t count; - ReadBinaryDataArrayHead(data, end, type, count, el); - - if(count % 2 != 0) { - ParseError("number of floats is not a multiple of two (2) (binary)",&el); - } - - if(!count) { - return; - } - - if (type != 'd' && type != 'f') { - ParseError("expected float or double array (binary)",&el); - } - - std::vector<char> buff; - ReadBinaryDataArray(type, count, data, end, buff, el); - - ai_assert(data == end); - uint64_t dataToRead = static_cast<uint64_t>(count) * (type == 'd' ? 8 : 4); - if (dataToRead != buff.size()) { - ParseError("Invalid read size (binary)",&el); - } - - const uint32_t count2 = count / 2; - out.reserve(count2); - - if (type == 'd') { - const double* d = reinterpret_cast<const double*>(&buff[0]); - for (unsigned int i = 0; i < count2; ++i, d += 2) { - out.push_back(aiVector2D(static_cast<float>(d[0]), - static_cast<float>(d[1]))); - } - } else if (type == 'f') { - const float* f = reinterpret_cast<const float*>(&buff[0]); - for (unsigned int i = 0; i < count2; ++i, f += 2) { - out.push_back(aiVector2D(f[0],f[1])); - } - } - - return; - } - - const size_t dim = ParseTokenAsDim(*tok[0]); - - // see notes in ParseVectorDataArray() above - out.reserve(dim); - - const Scope& scope = GetRequiredScope(el); - const Element& a = GetRequiredElement(scope,"a",&el); - - if (a.Tokens().size() % 2 != 0) { - ParseError("number of floats is not a multiple of two (2)",&el); - } - for (TokenList::const_iterator it = a.Tokens().begin(), end = a.Tokens().end(); it != end; ) { - aiVector2D v; - v.x = ParseTokenAsFloat(**it++); - v.y = ParseTokenAsFloat(**it++); - - out.push_back(v); - } -} - - -// ------------------------------------------------------------------------------------------------ -// read an array of ints -void ParseVectorDataArray(std::vector<int>& out, const Element& el) { - out.resize( 0 ); - const TokenList& tok = el.Tokens(); - if(tok.empty()) { - ParseError("unexpected empty element",&el); - } - - if(tok[0]->IsBinary()) { - const char* data = tok[0]->begin(), *end = tok[0]->end(); - - char type; - uint32_t count; - ReadBinaryDataArrayHead(data, end, type, count, el); - - if(!count) { - return; - } - - if (type != 'i') { - ParseError("expected int array (binary)",&el); - } - - std::vector<char> buff; - ReadBinaryDataArray(type, count, data, end, buff, el); - - ai_assert(data == end); - uint64_t dataToRead = static_cast<uint64_t>(count) * 4; - if (dataToRead != buff.size()) { - ParseError("Invalid read size (binary)",&el); - } - - out.reserve(count); - - const int32_t* ip = reinterpret_cast<const int32_t*>(&buff[0]); - for (unsigned int i = 0; i < count; ++i, ++ip) { - BE_NCONST int32_t val = *ip; - AI_SWAP4(val); - out.push_back(val); - } - - return; - } - - const size_t dim = ParseTokenAsDim(*tok[0]); - - // see notes in ParseVectorDataArray() - out.reserve(dim); - - const Scope& scope = GetRequiredScope(el); - const Element& a = GetRequiredElement(scope,"a",&el); - - for (TokenList::const_iterator it = a.Tokens().begin(), end = a.Tokens().end(); it != end; ) { - const int ival = ParseTokenAsInt(**it++); - out.push_back(ival); - } -} - - -// ------------------------------------------------------------------------------------------------ -// read an array of floats -void ParseVectorDataArray(std::vector<float>& out, const Element& el) -{ - out.resize( 0 ); - const TokenList& tok = el.Tokens(); - if(tok.empty()) { - ParseError("unexpected empty element",&el); - } - - if(tok[0]->IsBinary()) { - const char* data = tok[0]->begin(), *end = tok[0]->end(); - - char type; - uint32_t count; - ReadBinaryDataArrayHead(data, end, type, count, el); - - if(!count) { - return; - } - - if (type != 'd' && type != 'f') { - ParseError("expected float or double array (binary)",&el); - } - - std::vector<char> buff; - ReadBinaryDataArray(type, count, data, end, buff, el); - - ai_assert(data == end); - uint64_t dataToRead = static_cast<uint64_t>(count) * (type == 'd' ? 8 : 4); - if (dataToRead != buff.size()) { - ParseError("Invalid read size (binary)",&el); - } - - if (type == 'd') { - const double* d = reinterpret_cast<const double*>(&buff[0]); - for (unsigned int i = 0; i < count; ++i, ++d) { - out.push_back(static_cast<float>(*d)); - } - } - else if (type == 'f') { - const float* f = reinterpret_cast<const float*>(&buff[0]); - for (unsigned int i = 0; i < count; ++i, ++f) { - out.push_back(*f); - } - } - - return; - } - - const size_t dim = ParseTokenAsDim(*tok[0]); - - // see notes in ParseVectorDataArray() - out.reserve(dim); - - const Scope& scope = GetRequiredScope(el); - const Element& a = GetRequiredElement(scope,"a",&el); - - for (TokenList::const_iterator it = a.Tokens().begin(), end = a.Tokens().end(); it != end; ) { - const float ival = ParseTokenAsFloat(**it++); - out.push_back(ival); - } -} - -// ------------------------------------------------------------------------------------------------ -// read an array of uints -void ParseVectorDataArray(std::vector<unsigned int>& out, const Element& el) -{ - out.resize( 0 ); - const TokenList& tok = el.Tokens(); - if(tok.empty()) { - ParseError("unexpected empty element",&el); - } - - if(tok[0]->IsBinary()) { - const char* data = tok[0]->begin(), *end = tok[0]->end(); - - char type; - uint32_t count; - ReadBinaryDataArrayHead(data, end, type, count, el); - - if(!count) { - return; - } - - if (type != 'i') { - ParseError("expected (u)int array (binary)",&el); - } - - std::vector<char> buff; - ReadBinaryDataArray(type, count, data, end, buff, el); - - ai_assert(data == end); - uint64_t dataToRead = static_cast<uint64_t>(count) * 4; - if (dataToRead != buff.size()) { - ParseError("Invalid read size (binary)",&el); - } - - out.reserve(count); - - const int32_t* ip = reinterpret_cast<const int32_t*>(&buff[0]); - for (unsigned int i = 0; i < count; ++i, ++ip) { - BE_NCONST int32_t val = *ip; - if(val < 0) { - ParseError("encountered negative integer index (binary)"); - } - - AI_SWAP4(val); - out.push_back(val); - } - - return; - } - - const size_t dim = ParseTokenAsDim(*tok[0]); - - // see notes in ParseVectorDataArray() - out.reserve(dim); - - const Scope& scope = GetRequiredScope(el); - const Element& a = GetRequiredElement(scope,"a",&el); - - for (TokenList::const_iterator it = a.Tokens().begin(), end = a.Tokens().end(); it != end; ) { - const int ival = ParseTokenAsInt(**it++); - if(ival < 0) { - ParseError("encountered negative integer index"); - } - out.push_back(static_cast<unsigned int>(ival)); - } -} - - -// ------------------------------------------------------------------------------------------------ -// read an array of uint64_ts -void ParseVectorDataArray(std::vector<uint64_t>& out, const Element& el) -{ - out.resize( 0 ); - const TokenList& tok = el.Tokens(); - if(tok.empty()) { - ParseError("unexpected empty element",&el); - } - - if(tok[0]->IsBinary()) { - const char* data = tok[0]->begin(), *end = tok[0]->end(); - - char type; - uint32_t count; - ReadBinaryDataArrayHead(data, end, type, count, el); - - if(!count) { - return; - } - - if (type != 'l') { - ParseError("expected long array (binary)",&el); - } - - std::vector<char> buff; - ReadBinaryDataArray(type, count, data, end, buff, el); - - ai_assert(data == end); - uint64_t dataToRead = static_cast<uint64_t>(count) * 8; - if (dataToRead != buff.size()) { - ParseError("Invalid read size (binary)",&el); - } - - out.reserve(count); - - const uint64_t* ip = reinterpret_cast<const uint64_t*>(&buff[0]); - for (unsigned int i = 0; i < count; ++i, ++ip) { - BE_NCONST uint64_t val = *ip; - AI_SWAP8(val); - out.push_back(val); - } - - return; - } - - const size_t dim = ParseTokenAsDim(*tok[0]); - - // see notes in ParseVectorDataArray() - out.reserve(dim); - - const Scope& scope = GetRequiredScope(el); - const Element& a = GetRequiredElement(scope,"a",&el); - - for (TokenList::const_iterator it = a.Tokens().begin(), end = a.Tokens().end(); it != end; ) { - const uint64_t ival = ParseTokenAsID(**it++); - - out.push_back(ival); - } -} - -// ------------------------------------------------------------------------------------------------ -// read an array of int64_ts -void ParseVectorDataArray(std::vector<int64_t>& out, const Element& el) -{ - out.resize( 0 ); - const TokenList& tok = el.Tokens(); - if (tok.empty()) { - ParseError("unexpected empty element", &el); - } - - if (tok[0]->IsBinary()) { - const char* data = tok[0]->begin(), *end = tok[0]->end(); - - char type; - uint32_t count; - ReadBinaryDataArrayHead(data, end, type, count, el); - - if (!count) { - return; - } - - if (type != 'l') { - ParseError("expected long array (binary)", &el); - } - - std::vector<char> buff; - ReadBinaryDataArray(type, count, data, end, buff, el); - - ai_assert(data == end); - uint64_t dataToRead = static_cast<uint64_t>(count) * 8; - if (dataToRead != buff.size()) { - ParseError("Invalid read size (binary)",&el); - } - - out.reserve(count); - - const int64_t* ip = reinterpret_cast<const int64_t*>(&buff[0]); - for (unsigned int i = 0; i < count; ++i, ++ip) { - BE_NCONST int64_t val = *ip; - AI_SWAP8(val); - out.push_back(val); - } - - return; - } - - const size_t dim = ParseTokenAsDim(*tok[0]); - - // see notes in ParseVectorDataArray() - out.reserve(dim); - - const Scope& scope = GetRequiredScope(el); - const Element& a = GetRequiredElement(scope, "a", &el); - - for (TokenList::const_iterator it = a.Tokens().begin(), end = a.Tokens().end(); it != end;) { - const int64_t ival = ParseTokenAsInt64(**it++); - - out.push_back(ival); - } -} - -// ------------------------------------------------------------------------------------------------ -aiMatrix4x4 ReadMatrix(const Element& element) -{ - std::vector<float> values; - ParseVectorDataArray(values,element); - - if(values.size() != 16) { - ParseError("expected 16 matrix elements"); - } - - aiMatrix4x4 result; - - - result.a1 = values[0]; - result.a2 = values[1]; - result.a3 = values[2]; - result.a4 = values[3]; - - result.b1 = values[4]; - result.b2 = values[5]; - result.b3 = values[6]; - result.b4 = values[7]; - - result.c1 = values[8]; - result.c2 = values[9]; - result.c3 = values[10]; - result.c4 = values[11]; - - result.d1 = values[12]; - result.d2 = values[13]; - result.d3 = values[14]; - result.d4 = values[15]; - - result.Transpose(); - return result; -} - - -// ------------------------------------------------------------------------------------------------ -// wrapper around ParseTokenAsString() with ParseError handling -std::string ParseTokenAsString(const Token& t) -{ - const char* err; - const std::string& i = ParseTokenAsString(t,err); - if(err) { - ParseError(err,t); - } - return i; -} - -bool HasElement( const Scope& sc, const std::string& index ) { - const Element* el = sc[ index ]; - if ( nullptr == el ) { - return false; - } - - return true; -} - -// ------------------------------------------------------------------------------------------------ -// extract a required element from a scope, abort if the element cannot be found -const Element& GetRequiredElement(const Scope& sc, const std::string& index, const Element* element /*= nullptr*/) -{ - const Element* el = sc[index]; - if(!el) { - ParseError("did not find required element \"" + index + "\"",element); - } - return *el; -} - - -// ------------------------------------------------------------------------------------------------ -// extract required compound scope -const Scope& GetRequiredScope(const Element& el) -{ - const Scope* const s = el.Compound(); - if(!s) { - ParseError("expected compound scope",&el); - } - - return *s; -} - - -// ------------------------------------------------------------------------------------------------ -// get token at a particular index -const Token& GetRequiredToken(const Element& el, unsigned int index) -{ - const TokenList& t = el.Tokens(); - if(index >= t.size()) { - ParseError(Formatter::format( "missing token at index " ) << index,&el); - } - - return *t[index]; -} - - -// ------------------------------------------------------------------------------------------------ -// wrapper around ParseTokenAsID() with ParseError handling -uint64_t ParseTokenAsID(const Token& t) -{ - const char* err; - const uint64_t i = ParseTokenAsID(t,err); - if(err) { - ParseError(err,t); - } - return i; -} - - -// ------------------------------------------------------------------------------------------------ -// wrapper around ParseTokenAsDim() with ParseError handling -size_t ParseTokenAsDim(const Token& t) -{ - const char* err; - const size_t i = ParseTokenAsDim(t,err); - if(err) { - ParseError(err,t); - } - return i; -} - - -// ------------------------------------------------------------------------------------------------ -// wrapper around ParseTokenAsFloat() with ParseError handling -float ParseTokenAsFloat(const Token& t) -{ - const char* err; - const float i = ParseTokenAsFloat(t,err); - if(err) { - ParseError(err,t); - } - return i; -} - -// ------------------------------------------------------------------------------------------------ -// wrapper around ParseTokenAsInt() with ParseError handling -int ParseTokenAsInt(const Token& t) -{ - const char* err; - const int i = ParseTokenAsInt(t,err); - if(err) { - ParseError(err,t); - } - return i; -} - -// ------------------------------------------------------------------------------------------------ -// wrapper around ParseTokenAsInt64() with ParseError handling -int64_t ParseTokenAsInt64(const Token& t) -{ - const char* err; - const int64_t i = ParseTokenAsInt64(t, err); - if (err) { - ParseError(err, t); - } - return i; -} - -} // !FBX -} // !Assimp - -#endif |