MF_API MFVertexBuffer *MFVertex_CreateVertexBuffer(const MFVertexDeclaration *pVertexFormat, int numVerts, MFVertexBufferType type, void *pVertexBufferMemory, const char *pName)
{
int nameLen = pName ? MFString_Length(pName) + 1 : 0;
MFVertexBuffer *pVB;
if(type == MFVBType_Scratch)
pVB = (MFVertexBuffer*)MFRenderer_AllocateScratchMemory(sizeof(MFVertexBuffer) + nameLen);
else
pVB = (MFVertexBuffer*)MFHeap_Alloc(sizeof(MFVertexBuffer) + nameLen);
MFZeroMemory(pVB, sizeof(MFVertexBuffer));
if(pName)
pName = MFString_Copy((char*)&pVB[1], pName);
pVB->pVertexDeclatation = pVertexFormat;
pVB->bufferType = type;
pVB->numVerts = numVerts;
if(!MFVertex_CreateVertexBufferPlatformSpecific(pVB, pVertexBufferMemory))
{
if(type != MFVBType_Scratch)
MFHeap_Free(pVB);
return NULL;
}
if(type == MFVBType_Scratch)
{
// add to a scratch list that will be cleaned up later...
pVB->pNextScratchBuffer = gpScratchBufferList;
gpScratchBufferList = pVB;
}
else
MFResource_AddResource(pVB, MFRT_VertexBuffer, (uint32)(MFUtil_HashPointer(pVB) & 0xFFFFFFFF), pName);
return pVB;
}
MF_API MFMaterial* MFMaterial_Create(const char *pName)
{
MFCALLSTACK;
MFMaterial *pMat = MFMaterial_Find(pName);
if(!pMat)
{
pMat = (MFMaterial*)MFHeap_AllocAndZero(sizeof(MFMaterial) + MFString_Length(pName) + 1);
pName = MFString_Copy((char*)&pMat[1], pName);
MFResource_AddResource(pMat, MFRT_Material, MFUtil_HashString(pName) ^ 0x0a7e01a1, pName);
// TODO: how to determine size?
pMat->pMaterialState = MFStateBlock_Create(256);
pMat->bStateDirty = true;
MaterialDefinition *pDef = pDefinitionRegistry;
while(pDef)
{
MFIniLine *pLine = pDef->pIni->GetFirstLine()->FindEntry("section",pName);
if (pLine)
{
MaterialInternal_InitialiseFromDefinition(pDef->pIni, pMat, pName);
break;
}
pDef = pDef->pNextDefinition;
}
if(!pDef)
{
// assign material type
pMat->pType = MaterialInternal_GetMaterialType("Standard");
pMat->pInstanceData = MFHeap_AllocAndZero(pMat->pType->instanceDataSize);
pMat->pType->materialCallbacks.pCreateInstance(pMat);
// set diffuse map parameter
MFMaterial_SetParameterS(pMat, MFMatStandard_Texture, MFMatStandard_Tex_DifuseMap, pName);
}
}
return pMat;
}
MF_API MFIndexBuffer *MFVertex_CreateIndexBuffer(int numIndices, uint16 *pIndexBufferMemory, const char *pName)
{
int nameLen = pName ? MFString_Length(pName) + 1 : 0;
MFIndexBuffer *pIB = (MFIndexBuffer*)MFHeap_AllocAndZero(sizeof(MFIndexBuffer) + nameLen);
if(pName)
pName = MFString_Copy((char*)&pIB[1], pName);
pIB->numIndices = numIndices;
if(!MFVertex_CreateIndexBufferPlatformSpecific(pIB, pIndexBufferMemory))
{
MFHeap_Free(pIB);
return NULL;
}
MFResource_AddResource(pIB, MFRT_IndexBuffer, (uint32)(MFUtil_HashPointer(pIB) & 0xFFFFFFFF), pName);
return pIB;
}
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 MFVertexDeclaration *MFVertex_CreateVertexDeclaration(const MFVertexElement *pElementArray, int elementCount)
{
// assign the auto format components before calculating the hash
MFVertexElement elements[16];
MFCopyMemory(elements, pElementArray, sizeof(MFVertexElement)*elementCount);
for(int e=0; e<elementCount; ++e)
{
if(pElementArray[e].format == MFVDF_Auto)
elements[e].format = MFVertex_ChoooseVertexDataTypePlatformSpecific(pElementArray[e].type, pElementArray[e].componentCount);
}
uint32 hash = MFUtil_HashBuffer(elements, sizeof(MFVertexElement)*elementCount);
MFVertexDeclaration *pDecl = (MFVertexDeclaration*)MFResource_Find(hash);
if(!pDecl)
{
pDecl = (MFVertexDeclaration*)MFHeap_AllocAndZero(sizeof(MFVertexDeclaration) + (sizeof(MFVertexElement) + sizeof(MFVertexElementData))*elementCount);
pDecl->numElements = elementCount;
pDecl->pElements = (MFVertexElement*)&pDecl[1];
pDecl->pElementData = (MFVertexElementData*)&pDecl->pElements[elementCount];
MFCopyMemory(pDecl->pElements, elements, sizeof(MFVertexElement)*elementCount);
int streamOffsets[16];
MFZeroMemory(streamOffsets, sizeof(streamOffsets));
// set the element data and calculate the strides
for(int e=0; e<elementCount; ++e)
{
pDecl->pElementData[e].offset = streamOffsets[elements[e].stream];
pDecl->pElementData[e].stride = 0;
streamOffsets[elements[e].stream] += gVertexDataStride[elements[e].format];
pDecl->streamsUsed |= MFBIT(elements[e].stream);
}
// set the strides for each component
for(int e=0; e<elementCount; ++e)
pDecl->pElementData[e].stride = streamOffsets[elements[e].stream];
if(!MFVertex_CreateVertexDeclarationPlatformSpecific(pDecl))
{
MFHeap_Free(pDecl);
return NULL;
}
MFResource_AddResource(pDecl, MFRT_VertexDecl, hash);
if(pDecl->streamsUsed != 1)
{
// create the stream declarations...
MFVertexElement streamElements[64];
for(int s=0; s<16; ++s)
{
if(!(pDecl->streamsUsed & (1 << s)))
continue;
int numStreamElements = 0;
for(int e=0; e<elementCount; ++e)
{
if(elements[e].stream == s)
{
streamElements[numStreamElements] = elements[e];
streamElements[numStreamElements].stream = 0;
++numStreamElements;
}
}
if(numStreamElements)
pDecl->pStreamDecl[s] = MFVertex_CreateVertexDeclaration(streamElements, numStreamElements);
}
}
}
return pDecl;
}
