Mesh::~Mesh()
{
destroyD3DBuffers();
delete[] vertexData;
delete[] triangleData;
delete[] quadData;
}
inline void setDirty() { destroyD3DBuffers(); }
void Mesh::createD3DBuffers()
{
destroyD3DBuffers();
// CREATE VERTEX BUFFER
{
int vertexBytes = numVertices * vertexStride * sizeof(float);
fvf = D3DFVF_XYZ | D3DFVF_NORMAL | (numUVSets << D3DFVF_TEXCOUNT_SHIFT) | (vertexColors * D3DFVF_DIFFUSE);
globalDirect3DDevice->CreateVertexBuffer
(
vertexBytes, // Length
0, // Usage
fvf, // FVF
D3DPOOL_DEFAULT, // Pool
&vertexBuffer, // ppVertexBuffer
NULL // pSharedHandle
);
void *vertexBufferData;
vertexBuffer->Lock(0, vertexBytes, &vertexBufferData, 0);
memcpy(vertexBufferData, vertexData, vertexBytes);
vertexBuffer->Unlock();
}
// CREATE INDEX BUFFER
{
int triangleBytes = numTriangles * sizeof(int) * 3;
int quadBytes = numQuads * 2 * sizeof(int) * 3;
int indexBytes = triangleBytes + quadBytes;
globalDirect3DDevice->CreateIndexBuffer(
indexBytes, // Length
0, // Usage
D3DFMT_INDEX32, // Format
D3DPOOL_DEFAULT, // Pool
&indexBuffer, // ppIndexBuffer
NULL // pSharedHandle
);
int *indexBufferData;
indexBuffer->Lock(0, indexBytes, (void **)(&indexBufferData), 0);
// Simply copy in triangle data since it is in the right format
memcpy(indexBufferData, triangleData, triangleBytes);
// Quads needs some processing
for (int i = 0; i < numQuads; i++)
{
int *q = quad(i);
int offset = numTriangles * 3 + i * 6;
indexBufferData[offset + 0] = q[0];
indexBufferData[offset + 1] = q[1];
indexBufferData[offset + 2] = q[3];
indexBufferData[offset + 3] = q[1];
indexBufferData[offset + 4] = q[2];
indexBufferData[offset + 5] = q[3];
}
indexBuffer->Unlock();
}
}