472 lines
16 KiB
C++
472 lines
16 KiB
C++
/*
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---------------------------------------------------------------------------
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Open Asset Import Library (ASSIMP)
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---------------------------------------------------------------------------
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Copyright (c) 2006-2010, ASSIMP Development Team
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All rights reserved.
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Redistribution and use of this software in source and binary forms,
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with or without modification, are permitted provided that the following
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conditions are met:
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* Redistributions of source code must retain the above
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copyright notice, this list of conditions and the
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following disclaimer.
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* Redistributions in binary form must reproduce the above
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copyright notice, this list of conditions and the
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following disclaimer in the documentation and/or other
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materials provided with the distribution.
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* Neither the name of the ASSIMP team, nor the names of its
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contributors may be used to endorse or promote products
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derived from this software without specific prior
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written permission of the ASSIMP Development Team.
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THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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---------------------------------------------------------------------------
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*/
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/** @file MD5Parser.cpp
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* @brief Implementation of the MD5 parser class
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*/
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#include "AssimpPCH.h"
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// internal headers
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#include "MD5Loader.h"
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#include "MaterialSystem.h"
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#include "fast_atof.h"
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#include "ParsingUtils.h"
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#include "StringComparison.h"
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using namespace Assimp;
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using namespace Assimp::MD5;
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// ------------------------------------------------------------------------------------------------
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// Parse the segment structure fo a MD5 file
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MD5Parser::MD5Parser(char* _buffer, unsigned int _fileSize )
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{
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ai_assert(NULL != _buffer && 0 != _fileSize);
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buffer = _buffer;
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fileSize = _fileSize;
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lineNumber = 0;
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DefaultLogger::get()->debug("MD5Parser begin");
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// parse the file header
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ParseHeader();
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// and read all sections until we're finished
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bool running = true;
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while (running) {
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mSections.push_back(Section());
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Section& sec = mSections.back();
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if(!ParseSection(sec)) {
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break;
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}
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}
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if ( !DefaultLogger::isNullLogger()) {
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char szBuffer[128]; // should be sufficiently large
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::sprintf(szBuffer,"MD5Parser end. Parsed %i sections",(int)mSections.size());
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DefaultLogger::get()->debug(szBuffer);
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}
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}
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// ------------------------------------------------------------------------------------------------
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// Report error to the log stream
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/*static*/ void MD5Parser::ReportError (const char* error, unsigned int line)
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{
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char szBuffer[1024];
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::sprintf(szBuffer,"[MD5] Line %i: %s",line,error);
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throw DeadlyImportError(szBuffer);
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}
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// ------------------------------------------------------------------------------------------------
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// Report warning to the log stream
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/*static*/ void MD5Parser::ReportWarning (const char* warn, unsigned int line)
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{
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char szBuffer[1024];
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::sprintf(szBuffer,"[MD5] Line %i: %s",line,warn);
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DefaultLogger::get()->warn(szBuffer);
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}
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// ------------------------------------------------------------------------------------------------
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// Parse and validate the MD5 header
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void MD5Parser::ParseHeader()
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{
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// parse and validate the file version
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SkipSpaces();
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if (!TokenMatch(buffer,"MD5Version",10)) {
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ReportError("Invalid MD5 file: MD5Version tag has not been found");
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}
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SkipSpaces();
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unsigned int iVer = ::strtol10(buffer,(const char**)&buffer);
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if (10 != iVer) {
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ReportError("MD5 version tag is unknown (10 is expected)");
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}
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SkipLine();
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// print the command line options to the console
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// FIX: can break the log length limit, so we need to be careful
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char* sz = buffer;
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while (!IsLineEnd( *buffer++));
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DefaultLogger::get()->info(std::string(sz,std::min((uintptr_t)MAX_LOG_MESSAGE_LENGTH, (uintptr_t)(buffer-sz))));
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SkipSpacesAndLineEnd();
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}
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// ------------------------------------------------------------------------------------------------
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// Recursive MD5 parsing function
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bool MD5Parser::ParseSection(Section& out)
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{
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// store the current line number for use in error messages
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out.iLineNumber = lineNumber;
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// first parse the name of the section
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char* sz = buffer;
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while (!IsSpaceOrNewLine( *buffer))buffer++;
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out.mName = std::string(sz,(uintptr_t)(buffer-sz));
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SkipSpaces();
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bool running = true;
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while (running) {
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if ('{' == *buffer) {
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// it is a normal section so read all lines
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buffer++;
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bool run = true;
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while (run)
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{
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if (!SkipSpacesAndLineEnd()) {
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return false; // seems this was the last section
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}
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if ('}' == *buffer) {
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buffer++;
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break;
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}
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out.mElements.push_back(Element());
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Element& elem = out.mElements.back();
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elem.iLineNumber = lineNumber;
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elem.szStart = buffer;
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// terminate the line with zero
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while (!IsLineEnd( *buffer))buffer++;
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if (*buffer) {
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++lineNumber;
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*buffer++ = '\0';
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}
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}
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break;
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}
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else if (!IsSpaceOrNewLine(*buffer)) {
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// it is an element at global scope. Parse its value and go on
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sz = buffer;
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while (!IsSpaceOrNewLine( *buffer++));
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out.mGlobalValue = std::string(sz,(uintptr_t)(buffer-sz));
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continue;
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}
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break;
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}
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return SkipSpacesAndLineEnd();
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}
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// ------------------------------------------------------------------------------------------------
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// Some dirty macros just because they're so funny and easy to debug
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// skip all spaces ... handle EOL correctly
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#define AI_MD5_SKIP_SPACES() if(!SkipSpaces(&sz)) \
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MD5Parser::ReportWarning("Unexpected end of line",(*eit).iLineNumber);
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// read a triple float in brackets: (1.0 1.0 1.0)
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#define AI_MD5_READ_TRIPLE(vec) \
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AI_MD5_SKIP_SPACES(); \
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if ('(' != *sz++) \
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MD5Parser::ReportWarning("Unexpected token: ( was expected",(*eit).iLineNumber); \
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AI_MD5_SKIP_SPACES(); \
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sz = fast_atof_move(sz,(float&)vec.x); \
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AI_MD5_SKIP_SPACES(); \
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sz = fast_atof_move(sz,(float&)vec.y); \
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AI_MD5_SKIP_SPACES(); \
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sz = fast_atof_move(sz,(float&)vec.z); \
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AI_MD5_SKIP_SPACES(); \
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if (')' != *sz++) \
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MD5Parser::ReportWarning("Unexpected token: ) was expected",(*eit).iLineNumber);
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// parse a string, enclosed in quotation marks or not
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#define AI_MD5_PARSE_STRING(out) \
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bool bQuota = (*sz == '\"'); \
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const char* szStart = sz; \
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while (!IsSpaceOrNewLine(*sz))++sz; \
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const char* szEnd = sz; \
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if (bQuota) { \
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szStart++; \
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if ('\"' != *(szEnd-=1)) { \
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MD5Parser::ReportWarning("Expected closing quotation marks in string", \
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(*eit).iLineNumber); \
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continue; \
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} \
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} \
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out.length = (size_t)(szEnd - szStart); \
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::memcpy(out.data,szStart,out.length); \
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out.data[out.length] = '\0';
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// ------------------------------------------------------------------------------------------------
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// .MD5MESH parsing function
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MD5MeshParser::MD5MeshParser(SectionList& mSections)
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{
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DefaultLogger::get()->debug("MD5MeshParser begin");
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// now parse all sections
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for (SectionList::const_iterator iter = mSections.begin(), iterEnd = mSections.end();iter != iterEnd;++iter){
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if ( (*iter).mName == "numMeshes") {
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mMeshes.reserve(::strtol10((*iter).mGlobalValue.c_str()));
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}
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else if ( (*iter).mName == "numJoints") {
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mJoints.reserve(::strtol10((*iter).mGlobalValue.c_str()));
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}
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else if ((*iter).mName == "joints") {
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// "origin" -1 ( -0.000000 0.016430 -0.006044 ) ( 0.707107 0.000000 0.707107 )
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for (ElementList::const_iterator eit = (*iter).mElements.begin(), eitEnd = (*iter).mElements.end();eit != eitEnd; ++eit){
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mJoints.push_back(BoneDesc());
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BoneDesc& desc = mJoints.back();
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const char* sz = (*eit).szStart;
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AI_MD5_PARSE_STRING(desc.mName);
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AI_MD5_SKIP_SPACES();
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// negative values, at least -1, is allowed here
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desc.mParentIndex = (int)strtol10s(sz,&sz);
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AI_MD5_READ_TRIPLE(desc.mPositionXYZ);
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AI_MD5_READ_TRIPLE(desc.mRotationQuat); // normalized quaternion, so w is not there
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}
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}
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else if ((*iter).mName == "mesh") {
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mMeshes.push_back(MeshDesc());
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MeshDesc& desc = mMeshes.back();
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for (ElementList::const_iterator eit = (*iter).mElements.begin(), eitEnd = (*iter).mElements.end();eit != eitEnd; ++eit){
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const char* sz = (*eit).szStart;
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// shader attribute
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if (TokenMatch(sz,"shader",6)) {
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AI_MD5_SKIP_SPACES();
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AI_MD5_PARSE_STRING(desc.mShader);
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}
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// numverts attribute
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else if (TokenMatch(sz,"numverts",8)) {
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AI_MD5_SKIP_SPACES();
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desc.mVertices.resize(strtol10(sz));
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}
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// numtris attribute
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else if (TokenMatch(sz,"numtris",7)) {
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AI_MD5_SKIP_SPACES();
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desc.mFaces.resize(strtol10(sz));
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}
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// numweights attribute
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else if (TokenMatch(sz,"numweights",10)) {
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AI_MD5_SKIP_SPACES();
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desc.mWeights.resize(strtol10(sz));
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}
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// vert attribute
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// "vert 0 ( 0.394531 0.513672 ) 0 1"
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else if (TokenMatch(sz,"vert",4)) {
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AI_MD5_SKIP_SPACES();
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const unsigned int idx = ::strtol10(sz,&sz);
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AI_MD5_SKIP_SPACES();
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if (idx >= desc.mVertices.size())
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desc.mVertices.resize(idx+1);
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VertexDesc& vert = desc.mVertices[idx];
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if ('(' != *sz++)
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MD5Parser::ReportWarning("Unexpected token: ( was expected",(*eit).iLineNumber);
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AI_MD5_SKIP_SPACES();
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sz = fast_atof_move(sz,(float&)vert.mUV.x);
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AI_MD5_SKIP_SPACES();
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sz = fast_atof_move(sz,(float&)vert.mUV.y);
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AI_MD5_SKIP_SPACES();
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if (')' != *sz++)
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MD5Parser::ReportWarning("Unexpected token: ) was expected",(*eit).iLineNumber);
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AI_MD5_SKIP_SPACES();
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vert.mFirstWeight = ::strtol10(sz,&sz);
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AI_MD5_SKIP_SPACES();
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vert.mNumWeights = ::strtol10(sz,&sz);
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}
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// tri attribute
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// "tri 0 15 13 12"
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else if (TokenMatch(sz,"tri",3)) {
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AI_MD5_SKIP_SPACES();
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const unsigned int idx = strtol10(sz,&sz);
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if (idx >= desc.mFaces.size())
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desc.mFaces.resize(idx+1);
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aiFace& face = desc.mFaces[idx];
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face.mIndices = new unsigned int[face.mNumIndices = 3];
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for (unsigned int i = 0; i < 3;++i) {
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AI_MD5_SKIP_SPACES();
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face.mIndices[i] = strtol10(sz,&sz);
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}
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}
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// weight attribute
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// "weight 362 5 0.500000 ( -3.553583 11.893474 9.719339 )"
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else if (TokenMatch(sz,"weight",6)) {
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AI_MD5_SKIP_SPACES();
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const unsigned int idx = strtol10(sz,&sz);
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AI_MD5_SKIP_SPACES();
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if (idx >= desc.mWeights.size())
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desc.mWeights.resize(idx+1);
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WeightDesc& weight = desc.mWeights[idx];
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weight.mBone = strtol10(sz,&sz);
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AI_MD5_SKIP_SPACES();
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sz = fast_atof_move(sz,weight.mWeight);
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AI_MD5_READ_TRIPLE(weight.vOffsetPosition);
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}
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}
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}
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}
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DefaultLogger::get()->debug("MD5MeshParser end");
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}
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// ------------------------------------------------------------------------------------------------
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// .MD5ANIM parsing function
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MD5AnimParser::MD5AnimParser(SectionList& mSections)
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{
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DefaultLogger::get()->debug("MD5AnimParser begin");
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fFrameRate = 24.0f;
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mNumAnimatedComponents = 0xffffffff;
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for (SectionList::const_iterator iter = mSections.begin(), iterEnd = mSections.end();iter != iterEnd;++iter) {
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if ((*iter).mName == "hierarchy") {
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// "sheath" 0 63 6
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for (ElementList::const_iterator eit = (*iter).mElements.begin(), eitEnd = (*iter).mElements.end();eit != eitEnd; ++eit) {
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mAnimatedBones.push_back ( AnimBoneDesc () );
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AnimBoneDesc& desc = mAnimatedBones.back();
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const char* sz = (*eit).szStart;
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AI_MD5_PARSE_STRING(desc.mName);
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AI_MD5_SKIP_SPACES();
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// parent index - negative values are allowed (at least -1)
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desc.mParentIndex = ::strtol10s(sz,&sz);
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// flags (highest is 2^6-1)
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AI_MD5_SKIP_SPACES();
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if(63 < (desc.iFlags = ::strtol10(sz,&sz))){
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MD5Parser::ReportWarning("Invalid flag combination in hierarchy section",(*eit).iLineNumber);
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}
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AI_MD5_SKIP_SPACES();
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// index of the first animation keyframe component for this joint
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desc.iFirstKeyIndex = ::strtol10(sz,&sz);
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}
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}
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else if((*iter).mName == "baseframe") {
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// ( -0.000000 0.016430 -0.006044 ) ( 0.707107 0.000242 0.707107 )
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for (ElementList::const_iterator eit = (*iter).mElements.begin(), eitEnd = (*iter).mElements.end(); eit != eitEnd; ++eit) {
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const char* sz = (*eit).szStart;
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mBaseFrames.push_back ( BaseFrameDesc () );
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BaseFrameDesc& desc = mBaseFrames.back();
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AI_MD5_READ_TRIPLE(desc.vPositionXYZ);
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AI_MD5_READ_TRIPLE(desc.vRotationQuat);
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}
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}
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else if((*iter).mName == "frame") {
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if (!(*iter).mGlobalValue.length()) {
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MD5Parser::ReportWarning("A frame section must have a frame index",(*iter).iLineNumber);
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continue;
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}
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mFrames.push_back ( FrameDesc () );
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FrameDesc& desc = mFrames.back();
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desc.iIndex = strtol10((*iter).mGlobalValue.c_str());
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// we do already know how much storage we will presumably need
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if (0xffffffff != mNumAnimatedComponents)
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desc.mValues.reserve(mNumAnimatedComponents);
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// now read all elements (continous list of floats)
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for (ElementList::const_iterator eit = (*iter).mElements.begin(), eitEnd = (*iter).mElements.end(); eit != eitEnd; ++eit){
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const char* sz = (*eit).szStart;
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while (SkipSpacesAndLineEnd(&sz)) {
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float f;sz = fast_atof_move(sz,f);
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desc.mValues.push_back(f);
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}
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}
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}
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else if((*iter).mName == "numFrames") {
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mFrames.reserve(strtol10((*iter).mGlobalValue.c_str()));
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}
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else if((*iter).mName == "numJoints") {
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const unsigned int num = strtol10((*iter).mGlobalValue.c_str());
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mAnimatedBones.reserve(num);
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// try to guess the number of animated components if that element is not given
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if (0xffffffff == mNumAnimatedComponents)
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mNumAnimatedComponents = num * 6;
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}
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else if((*iter).mName == "numAnimatedComponents") {
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mAnimatedBones.reserve( strtol10((*iter).mGlobalValue.c_str()));
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}
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else if((*iter).mName == "frameRate") {
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fast_atof_move((*iter).mGlobalValue.c_str(),fFrameRate);
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}
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}
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DefaultLogger::get()->debug("MD5AnimParser end");
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}
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// ------------------------------------------------------------------------------------------------
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// .MD5CAMERA parsing function
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MD5CameraParser::MD5CameraParser(SectionList& mSections)
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{
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DefaultLogger::get()->debug("MD5CameraParser begin");
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fFrameRate = 24.0f;
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for (SectionList::const_iterator iter = mSections.begin(), iterEnd = mSections.end();iter != iterEnd;++iter) {
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if ((*iter).mName == "numFrames") {
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frames.reserve(strtol10((*iter).mGlobalValue.c_str()));
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}
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else if ((*iter).mName == "frameRate") {
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fFrameRate = fast_atof ((*iter).mGlobalValue.c_str());
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}
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else if ((*iter).mName == "numCuts") {
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cuts.reserve(strtol10((*iter).mGlobalValue.c_str()));
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}
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else if ((*iter).mName == "cuts") {
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for (ElementList::const_iterator eit = (*iter).mElements.begin(), eitEnd = (*iter).mElements.end(); eit != eitEnd; ++eit){
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cuts.push_back(strtol10((*eit).szStart)+1);
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}
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}
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else if ((*iter).mName == "camera") {
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for (ElementList::const_iterator eit = (*iter).mElements.begin(), eitEnd = (*iter).mElements.end(); eit != eitEnd; ++eit){
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const char* sz = (*eit).szStart;
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frames.push_back(CameraAnimFrameDesc());
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CameraAnimFrameDesc& cur = frames.back();
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AI_MD5_READ_TRIPLE(cur.vPositionXYZ);
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AI_MD5_READ_TRIPLE(cur.vRotationQuat);
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AI_MD5_SKIP_SPACES();
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cur.fFOV = fast_atof(sz);
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}
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}
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}
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DefaultLogger::get()->debug("MD5CameraParser end");
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}
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