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Diffstat (limited to 'libs/assimp/code/AssetLib/FBX/FBXBinaryTokenizer.cpp')
-rw-r--r--libs/assimp/code/AssetLib/FBX/FBXBinaryTokenizer.cpp485
1 files changed, 0 insertions, 485 deletions
diff --git a/libs/assimp/code/AssetLib/FBX/FBXBinaryTokenizer.cpp b/libs/assimp/code/AssetLib/FBX/FBXBinaryTokenizer.cpp
deleted file mode 100644
index 1a4d118..0000000
--- a/libs/assimp/code/AssetLib/FBX/FBXBinaryTokenizer.cpp
+++ /dev/null
@@ -1,485 +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 FBXBinaryTokenizer.cpp
- * @brief Implementation of a fake lexer for binary fbx files -
- * we emit tokens so the parser needs almost no special handling
- * for binary files.
- */
-
-#ifndef ASSIMP_BUILD_NO_FBX_IMPORTER
-
-#include "FBXTokenizer.h"
-#include "FBXUtil.h"
-#include <assimp/defs.h>
-#include <stdint.h>
-#include <assimp/Exceptional.h>
-#include <assimp/ByteSwapper.h>
-#include <assimp/DefaultLogger.hpp>
-#include <assimp/StringUtils.h>
-
-namespace Assimp {
-namespace FBX {
-
-//enum Flag
-//{
-// e_unknown_0 = 1 << 0,
-// e_unknown_1 = 1 << 1,
-// e_unknown_2 = 1 << 2,
-// e_unknown_3 = 1 << 3,
-// e_unknown_4 = 1 << 4,
-// e_unknown_5 = 1 << 5,
-// e_unknown_6 = 1 << 6,
-// e_unknown_7 = 1 << 7,
-// e_unknown_8 = 1 << 8,
-// e_unknown_9 = 1 << 9,
-// e_unknown_10 = 1 << 10,
-// e_unknown_11 = 1 << 11,
-// e_unknown_12 = 1 << 12,
-// e_unknown_13 = 1 << 13,
-// e_unknown_14 = 1 << 14,
-// e_unknown_15 = 1 << 15,
-// e_unknown_16 = 1 << 16,
-// e_unknown_17 = 1 << 17,
-// e_unknown_18 = 1 << 18,
-// e_unknown_19 = 1 << 19,
-// e_unknown_20 = 1 << 20,
-// e_unknown_21 = 1 << 21,
-// e_unknown_22 = 1 << 22,
-// e_unknown_23 = 1 << 23,
-// e_flag_field_size_64_bit = 1 << 24, // Not sure what is
-// e_unknown_25 = 1 << 25,
-// e_unknown_26 = 1 << 26,
-// e_unknown_27 = 1 << 27,
-// e_unknown_28 = 1 << 28,
-// e_unknown_29 = 1 << 29,
-// e_unknown_30 = 1 << 30,
-// e_unknown_31 = 1 << 31
-//};
-//
-//bool check_flag(uint32_t flags, Flag to_check)
-//{
-// return (flags & to_check) != 0;
-//}
-// ------------------------------------------------------------------------------------------------
-Token::Token(const char* sbegin, const char* send, TokenType type, size_t offset)
- :
- #ifdef DEBUG
- contents(sbegin, static_cast<size_t>(send-sbegin)),
- #endif
- sbegin(sbegin)
- , send(send)
- , type(type)
- , line(offset)
- , column(BINARY_MARKER)
-{
- ai_assert(sbegin);
- ai_assert(send);
-
- // binary tokens may have zero length because they are sometimes dummies
- // inserted by TokenizeBinary()
- ai_assert(send >= sbegin);
-}
-
-
-namespace {
-
-// ------------------------------------------------------------------------------------------------
-// signal tokenization error, this is always unrecoverable. Throws DeadlyImportError.
-AI_WONT_RETURN void TokenizeError(const std::string& message, size_t offset) AI_WONT_RETURN_SUFFIX;
-AI_WONT_RETURN void TokenizeError(const std::string& message, size_t offset)
-{
- throw DeadlyImportError("FBX-Tokenize", Util::GetOffsetText(offset), message);
-}
-
-
-// ------------------------------------------------------------------------------------------------
-size_t Offset(const char* begin, const char* cursor) {
- ai_assert(begin <= cursor);
-
- return cursor - begin;
-}
-
-// ------------------------------------------------------------------------------------------------
-void TokenizeError(const std::string& message, const char* begin, const char* cursor) {
- TokenizeError(message, Offset(begin, cursor));
-}
-
-// ------------------------------------------------------------------------------------------------
-uint32_t ReadWord(const char* input, const char*& cursor, const char* end) {
- const size_t k_to_read = sizeof( uint32_t );
- if(Offset(cursor, end) < k_to_read ) {
- TokenizeError("cannot ReadWord, out of bounds",input, cursor);
- }
-
- uint32_t word;
- ::memcpy(&word, cursor, 4);
- AI_SWAP4(word);
-
- cursor += k_to_read;
-
- return word;
-}
-
-// ------------------------------------------------------------------------------------------------
-uint64_t ReadDoubleWord(const char* input, const char*& cursor, const char* end) {
- const size_t k_to_read = sizeof(uint64_t);
- if(Offset(cursor, end) < k_to_read) {
- TokenizeError("cannot ReadDoubleWord, out of bounds",input, cursor);
- }
-
- uint64_t dword /*= *reinterpret_cast<const uint64_t*>(cursor)*/;
- ::memcpy( &dword, cursor, sizeof( uint64_t ) );
- AI_SWAP8(dword);
-
- cursor += k_to_read;
-
- return dword;
-}
-
-// ------------------------------------------------------------------------------------------------
-uint8_t ReadByte(const char* input, const char*& cursor, const char* end) {
- if(Offset(cursor, end) < sizeof( uint8_t ) ) {
- TokenizeError("cannot ReadByte, out of bounds",input, cursor);
- }
-
- uint8_t word;/* = *reinterpret_cast< const uint8_t* >( cursor )*/
- ::memcpy( &word, cursor, sizeof( uint8_t ) );
- ++cursor;
-
- return word;
-}
-
-// ------------------------------------------------------------------------------------------------
-unsigned int ReadString(const char*& sbegin_out, const char*& send_out, const char* input,
- const char*& cursor, const char* end, bool long_length = false, bool allow_null = false) {
- const uint32_t len_len = long_length ? 4 : 1;
- if(Offset(cursor, end) < len_len) {
- TokenizeError("cannot ReadString, out of bounds reading length",input, cursor);
- }
-
- const uint32_t length = long_length ? ReadWord(input, cursor, end) : ReadByte(input, cursor, end);
-
- if (Offset(cursor, end) < length) {
- TokenizeError("cannot ReadString, length is out of bounds",input, cursor);
- }
-
- sbegin_out = cursor;
- cursor += length;
-
- send_out = cursor;
-
- if(!allow_null) {
- for (unsigned int i = 0; i < length; ++i) {
- if(sbegin_out[i] == '\0') {
- TokenizeError("failed ReadString, unexpected NUL character in string",input, cursor);
- }
- }
- }
-
- return length;
-}
-
-// ------------------------------------------------------------------------------------------------
-void ReadData(const char*& sbegin_out, const char*& send_out, const char* input, const char*& cursor, const char* end) {
- if(Offset(cursor, end) < 1) {
- TokenizeError("cannot ReadData, out of bounds reading length",input, cursor);
- }
-
- const char type = *cursor;
- sbegin_out = cursor++;
-
- switch(type)
- {
- // 16 bit int
- case 'Y':
- cursor += 2;
- break;
-
- // 1 bit bool flag (yes/no)
- case 'C':
- cursor += 1;
- break;
-
- // 32 bit int
- case 'I':
- // <- fall through
-
- // float
- case 'F':
- cursor += 4;
- break;
-
- // double
- case 'D':
- cursor += 8;
- break;
-
- // 64 bit int
- case 'L':
- cursor += 8;
- break;
-
- // note: do not write cursor += ReadWord(...cursor) as this would be UB
-
- // raw binary data
- case 'R':
- {
- const uint32_t length = ReadWord(input, cursor, end);
- cursor += length;
- break;
- }
-
- case 'b':
- // TODO: what is the 'b' type code? Right now we just skip over it /
- // take the full range we could get
- cursor = end;
- break;
-
- // array of *
- case 'f':
- case 'd':
- case 'l':
- case 'i':
- case 'c': {
- const uint32_t length = ReadWord(input, cursor, end);
- const uint32_t encoding = ReadWord(input, cursor, end);
-
- const uint32_t comp_len = ReadWord(input, cursor, end);
-
- // compute length based on type and check against the stored value
- if(encoding == 0) {
- uint32_t stride = 0;
- switch(type)
- {
- case 'f':
- case 'i':
- stride = 4;
- break;
-
- case 'd':
- case 'l':
- stride = 8;
- break;
-
- case 'c':
- stride = 1;
- break;
-
- default:
- ai_assert(false);
- };
- ai_assert(stride > 0);
- if(length * stride != comp_len) {
- TokenizeError("cannot ReadData, calculated data stride differs from what the file claims",input, cursor);
- }
- }
- // zip/deflate algorithm (encoding==1)? take given length. anything else? die
- else if (encoding != 1) {
- TokenizeError("cannot ReadData, unknown encoding",input, cursor);
- }
- cursor += comp_len;
- break;
- }
-
- // string
- case 'S': {
- const char* sb, *se;
- // 0 characters can legally happen in such strings
- ReadString(sb, se, input, cursor, end, true, true);
- break;
- }
- default:
- TokenizeError("cannot ReadData, unexpected type code: " + std::string(&type, 1),input, cursor);
- }
-
- if(cursor > end) {
- TokenizeError("cannot ReadData, the remaining size is too small for the data type: " + std::string(&type, 1),input, cursor);
- }
-
- // the type code is contained in the returned range
- send_out = cursor;
-}
-
-
-// ------------------------------------------------------------------------------------------------
-bool ReadScope(TokenList& output_tokens, const char* input, const char*& cursor, const char* end, bool const is64bits)
-{
- // the first word contains the offset at which this block ends
- const uint64_t end_offset = is64bits ? ReadDoubleWord(input, cursor, end) : ReadWord(input, cursor, end);
-
- // we may get 0 if reading reached the end of the file -
- // fbx files have a mysterious extra footer which I don't know
- // how to extract any information from, but at least it always
- // starts with a 0.
- if(!end_offset) {
- return false;
- }
-
- if(end_offset > Offset(input, end)) {
- TokenizeError("block offset is out of range",input, cursor);
- }
- else if(end_offset < Offset(input, cursor)) {
- TokenizeError("block offset is negative out of range",input, cursor);
- }
-
- // the second data word contains the number of properties in the scope
- const uint64_t prop_count = is64bits ? ReadDoubleWord(input, cursor, end) : ReadWord(input, cursor, end);
-
- // the third data word contains the length of the property list
- const uint64_t prop_length = is64bits ? ReadDoubleWord(input, cursor, end) : ReadWord(input, cursor, end);
-
- // now comes the name of the scope/key
- const char* sbeg, *send;
- ReadString(sbeg, send, input, cursor, end);
-
- output_tokens.push_back(new_Token(sbeg, send, TokenType_KEY, Offset(input, cursor) ));
-
- // now come the individual properties
- const char* begin_cursor = cursor;
-
- if ((begin_cursor + prop_length) > end) {
- TokenizeError("property length out of bounds reading length ", input, cursor);
- }
-
- for (unsigned int i = 0; i < prop_count; ++i) {
- ReadData(sbeg, send, input, cursor, begin_cursor + prop_length);
-
- output_tokens.push_back(new_Token(sbeg, send, TokenType_DATA, Offset(input, cursor) ));
-
- if(i != prop_count-1) {
- output_tokens.push_back(new_Token(cursor, cursor + 1, TokenType_COMMA, Offset(input, cursor) ));
- }
- }
-
- if (Offset(begin_cursor, cursor) != prop_length) {
- TokenizeError("property length not reached, something is wrong",input, cursor);
- }
-
- // at the end of each nested block, there is a NUL record to indicate
- // that the sub-scope exists (i.e. to distinguish between P: and P : {})
- // this NUL record is 13 bytes long on 32 bit version and 25 bytes long on 64 bit.
- const size_t sentinel_block_length = is64bits ? (sizeof(uint64_t)* 3 + 1) : (sizeof(uint32_t)* 3 + 1);
-
- if (Offset(input, cursor) < end_offset) {
- if (end_offset - Offset(input, cursor) < sentinel_block_length) {
- TokenizeError("insufficient padding bytes at block end",input, cursor);
- }
-
- output_tokens.push_back(new_Token(cursor, cursor + 1, TokenType_OPEN_BRACKET, Offset(input, cursor) ));
-
- // XXX this is vulnerable to stack overflowing ..
- while(Offset(input, cursor) < end_offset - sentinel_block_length) {
- ReadScope(output_tokens, input, cursor, input + end_offset - sentinel_block_length, is64bits);
- }
- output_tokens.push_back(new_Token(cursor, cursor + 1, TokenType_CLOSE_BRACKET, Offset(input, cursor) ));
-
- for (unsigned int i = 0; i < sentinel_block_length; ++i) {
- if(cursor[i] != '\0') {
- TokenizeError("failed to read nested block sentinel, expected all bytes to be 0",input, cursor);
- }
- }
- cursor += sentinel_block_length;
- }
-
- if (Offset(input, cursor) != end_offset) {
- TokenizeError("scope length not reached, something is wrong",input, cursor);
- }
-
- return true;
-}
-
-} // anonymous namespace
-
-// ------------------------------------------------------------------------------------------------
-// TODO: Test FBX Binary files newer than the 7500 version to check if the 64 bits address behaviour is consistent
-void TokenizeBinary(TokenList& output_tokens, const char* input, size_t length)
-{
- ai_assert(input);
- ASSIMP_LOG_DEBUG("Tokenizing binary FBX file");
-
- if(length < 0x1b) {
- TokenizeError("file is too short",0);
- }
-
- //uint32_t offset = 0x15;
-/* const char* cursor = input + 0x15;
-
- const uint32_t flags = ReadWord(input, cursor, input + length);
-
- const uint8_t padding_0 = ReadByte(input, cursor, input + length); // unused
- const uint8_t padding_1 = ReadByte(input, cursor, input + length); // unused*/
-
- if (strncmp(input,"Kaydara FBX Binary",18)) {
- TokenizeError("magic bytes not found",0);
- }
-
- const char* cursor = input + 18;
- /*Result ignored*/ ReadByte(input, cursor, input + length);
- /*Result ignored*/ ReadByte(input, cursor, input + length);
- /*Result ignored*/ ReadByte(input, cursor, input + length);
- /*Result ignored*/ ReadByte(input, cursor, input + length);
- /*Result ignored*/ ReadByte(input, cursor, input + length);
- const uint32_t version = ReadWord(input, cursor, input + length);
- ASSIMP_LOG_DEBUG("FBX version: ", version);
- const bool is64bits = version >= 7500;
- const char *end = input + length;
- try
- {
- while (cursor < end ) {
- if (!ReadScope(output_tokens, input, cursor, input + length, is64bits)) {
- break;
- }
- }
- }
- catch (const DeadlyImportError& e)
- {
- if (!is64bits && (length > std::numeric_limits<std::uint32_t>::max())) {
- throw DeadlyImportError("The FBX file is invalid. This may be because the content is too big for this older version (", ai_to_string(version), ") of the FBX format. (", e.what(), ")");
- }
- throw;
- }
-}
-
-} // !FBX
-} // !Assimp
-
-#endif
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