// read/write a file to a filesystem
MF_API char* MFFileSystem_Load(const char *pFilename, size_t *pBytesRead, size_t extraBytes)
{
char *pBuffer = NULL;
MFFile *hFile = MFFileSystem_Open(pFilename, MFOF_Read|MFOF_Binary);
if(hFile)
{
uint64 size = MFFile_GetSize(hFile);
if(size > 0)
{
#if defined(MF_32BIT)
if(size >= 1LL << 32)
{
MFDebug_Warn(1, MFStr("File is larger than the available address space!", pFilename));
return NULL;
}
#endif
pBuffer = (char*)MFHeap_Alloc((size_t)size + extraBytes);
size_t bytesRead = MFFile_Read(hFile, pBuffer, (size_t)size);
if(extraBytes > 0)
pBuffer[size] = 0;
if(pBytesRead)
*pBytesRead = bytesRead;
}
MFFile_Close(hFile);
}
return pBuffer;
}
// if file does not exist, GetSize returns 0, however, a zero length file can also return 0 use 'Exists' to confirm
MF_API uint64 MFFileSystem_GetSize(const char *pFilename)
{
MFCALLSTACK;
uint64 size = 0;
MFFile *hFile = MFFileSystem_Open(pFilename, MFOF_Read|MFOF_Binary);
if(hFile)
{
size = MFFile_GetSize(hFile);
MFFile_Close(hFile);
}
return size;
}
MF_API MFAnimation* MFAnimation_Create(const char *pFilename, MFModel *pModel)
{
MFAnimationTemplate *pTemplate = MFAnimation_FindTemplate(pFilename);
if(!pTemplate)
{
size_t size = 0;
pTemplate = (MFAnimationTemplate*)MFModelInternal_PendingAnimationTemplate(&size);
if(!pTemplate)
{
MFFile *hFile = MFFileSystem_Open(MFStr("%s.anm", pFilename), MFOF_Read|MFOF_Binary);
if(hFile)
{
size = (size_t)MFFile_GetSize(hFile);
if(size > 0)
{
char *pTemplateData;
// allocate memory and load file
pTemplateData = (char*)MFHeap_Alloc(size + MFString_Length(pFilename) + 1);
MFFile_Read(hFile, pTemplateData, size);
pTemplate = (MFAnimationTemplate*)pTemplateData;
// check ID string
MFDebug_Assert(pTemplate->hash == MFMAKEFOURCC('A', 'N', 'M', '2'), "Incorrect MFAnimation version.");
}
MFFile_Close(hFile);
}
}
if(!pTemplate)
return NULL;
pFilename = MFString_Copy((char*)pTemplate + size, pFilename);
MFAnimation_FixUp(pTemplate, true);
MFResource_AddResource(pTemplate, MFRT_AnimationTemplate, MFUtil_HashString(pFilename) ^ 0xA010A010, pFilename);
}
// get the model bone chunk
MFModelDataChunk *pBoneChunk = MFModel_GetDataChunk(pModel->pTemplate, MFChunkType_Bones);
MFDebug_Assert(pBoneChunk, "Cant apply animation to a model with no skeleton!");
// create and init instance
MFAnimation *pAnimation;
size_t bytes = MFALIGN16(sizeof(MFAnimation)) + sizeof(MFMatrix)*pBoneChunk->count + sizeof(int)*pBoneChunk->count + sizeof(MFAnimationCurrentFrame)*pBoneChunk->count;
pAnimation = (MFAnimation*)MFHeap_Alloc(bytes);
pAnimation->pModel = pModel;
pAnimation->pTemplate = pTemplate;
// add animation to model animation list
pModel->pAnimation = pAnimation;
// get bones pointer from model (for convenience)
pAnimation->pBones = (MFModelBone*)pBoneChunk->pData;
pAnimation->numBones = pBoneChunk->count;
// set matrices to identity
pAnimation->pMatrices = (MFMatrix*)MFALIGN16(&pAnimation[1]);
for(int a=0; a<pBoneChunk->count; a++)
{
pAnimation->pMatrices[a] = MFMatrix::identity;
}
MFStateConstant_AnimationMatrices animMats;
animMats.pMatrices = pAnimation->pMatrices;
animMats.numMatrices = pAnimation->numBones;
MFStateBlock_SetAnimMatrices(pModel->pEntityState, animMats);
// build bone to animation stream mapping
pAnimation->pBoneMap = (int*)MFALIGN16(&pAnimation->pMatrices[pBoneChunk->count]);
for(int a=0; a<pBoneChunk->count; a++)
{
const char *pBoneName = MFModel_GetBoneName(pModel, a);
// find bone in animation
pAnimation->pBoneMap[a] = -1;
for(uint32 b=0; b<pTemplate->numBones; b++)
{
if(!MFString_CaseCmp(pBoneName, pTemplate->pBones[b].pBoneName))
{
pAnimation->pBoneMap[a] = b;
break;
}
}
}
pAnimation->pCustomMatrices = NULL;
pAnimation->blendLayer.frameTime = pAnimation->pTemplate->startTime;
pAnimation->blendLayer.pCurFrames = (MFAnimationCurrentFrame*)&pAnimation->pBoneMap[pBoneChunk->count];
MFZeroMemory(pAnimation->blendLayer.pCurFrames, sizeof(MFAnimationCurrentFrame)*pBoneChunk->count);
return pAnimation;
}
MF_API MFModel* MFModel_Create(const char *pFilename)
{
const char* pOriginalFilename = pFilename;
// see if it's already loaded
MFModelPool::Iterator it = gModelBank.Get(pOriginalFilename);
MFModelTemplate *pTemplate = it ? *it : NULL;
if(!pTemplate)
{
char *pTemplateData = NULL;
MFFile *hFile = MFFileSystem_Open(MFStr("%s.mdl", pFilename), MFOF_Read|MFOF_Binary);
if(hFile)
{
int64 size = MFFile_GetSize(hFile);
if(size > 0)
{
// allocate memory and load file
pTemplateData = (char*)MFHeap_Alloc((size_t)size + MFString_Length(pFilename) + 1);
MFFile_Read(hFile, pTemplateData, (size_t)size);
MFFile_Close(hFile);
MFString_Copy(&pTemplateData[size], pFilename);
pFilename = &pTemplateData[size];
}
}
else
{
#if defined(ALLOW_LOAD_FROM_SOURCE_DATA)
// try to load from source data
const char * const pExt[] = { ".f3d", ".dae", ".x", ".ase", ".obj", ".md2", ".md3", ".me2", NULL };
const char * const *ppExt = pExt;
MFIntModel *pIM = NULL;
while(!pIM && *ppExt)
{
MFString tempFilename = MFString::Format("%s%s", pFilename, *ppExt);
pIM = MFIntModel_CreateFromFile(tempFilename.CStr());
if(pIM)
{
pFilename = MFString_Copy((char*)MFHeap_Alloc(tempFilename.NumBytes()+1), tempFilename.CStr());
break;
}
++ppExt;
}
if(pIM)
{
MFIntModel_Optimise(pIM);
size_t size;
MFIntModel_CreateRuntimeData(pIM, (void**)&pTemplateData, &size, MFSystem_GetCurrentPlatform());
MFFile *pFile = MFFileSystem_Open(MFStr("cache:%s.mdl", pOriginalFilename), MFOF_Write | MFOF_Binary);
if(pFile)
{
MFFile_Write(pFile, pTemplateData, size, false);
MFFile_Close(pFile);
}
MFIntModel_Destroy(pIM);
}
#endif
}
if(!pTemplateData)
return NULL;
// check ID string
MFDebug_Assert(*(uint32*)pTemplateData == MFMAKEFOURCC('M', 'D', 'L', '2'), "Incorrect MFModel version.");
// store filename for later reference
pTemplate = (MFModelTemplate*)pTemplateData;
pTemplate->pFilename = pFilename;
gModelBank.Add(pOriginalFilename, pTemplate);
MFModel_FixUp(pTemplate, true);
MFModelDataChunk *pChunk = MFModel_GetDataChunk(pTemplate, MFChunkType_SubObjects);
if(pChunk)
{
MFModelSubObject *pSubobjects = (MFModelSubObject*)pChunk->pData;
for(int a=0; a<pChunk->count; a++)
{
// pSubobjects[a].pMaterial = MFMaterial_Create((char*)pSubobjects[a].pMaterial);
for(int b=0; b<pSubobjects[a].numMeshChunks; b++)
{
MFModel_CreateMeshChunk(MFModel_GetMeshChunkInternal(pTemplate, a, b));
}
}
}
}
MFModel *pModel;
pModel = (MFModel*)MFHeap_Alloc(sizeof(MFModel));
pModel->worldMatrix = MFMatrix::identity;
pModel->modelColour = MFVector::one;
pModel->pTemplate = pTemplate;
pModel->pAnimation = NULL;
++pTemplate->refCount;
return pModel;
}
