//---------------------------------------------------------------------------------------------------------------------
MF_API void MFBegin(uint32 vertexCount)
{
MFDebug_Assert(phase == 1, "not in order 1");
MFDebug_Assert(vertexCount > 0, "Invalid primitive count.");
currentPrim.numVertices = vertexCount;
if(gImmitateQuads)
currentPrim.numVertices *= 3;
// create an appropriate vertex buffer
pVB = MFVertex_CreateVertexBuffer(pDecl, currentPrim.numVertices, MFVBType_Scratch);
currentPrim.pMeshState = MFStateBlock_CreateTemporary(gLargeStateblock ? 256 : 64);
MFStateBlock_SetRenderState(currentPrim.pMeshState, MFSCRS_VertexDeclaration, pDecl);
MFStateBlock_SetRenderState(currentPrim.pMeshState, MFSCRS_VertexBuffer0, pVB);
MFVertex_LockVertexBuffer(pVB, (void**)&pLocked);
currentVert = 0;
current.u = current.v = 0.0f;
current.colour = 0xFFFFFFFF;
current.normal.x = current.normal.z = 0.0f;
current.normal.y = 1.0f;
phase = 2;
}
void BuildVertexBuffers()
{
struct Vertex
{
float pos[3];
float uv[2];
uint32 col;
};
// create vertex format declaration
MFVertexElement elements[] =
{
{ 0, MFVET_Position, 0, 3 },
{ 0, MFVET_TexCoord, 0, 2 },
{ 0, MFVET_Colour, 0, 4 }
};
pVertexDecl = MFVertex_CreateVertexDeclaration(elements, sizeof(elements)/sizeof(elements[0]));
// create box vertex buffer
Vertex prism[4 * 3] = // 4 triangles, 1 per face
{
{ { 1, -1, -1 }, { 0, 0 }, 0xFFFF0000 },
{ { -1, -1, -1 }, { 0, 0 }, 0xFFFF0000 },
{ { 0, 1, 0 }, { 0, 0 }, 0xFFFF0000 },
{ { -1, -1, -1 }, { 0, 0 }, 0xFF00FF00 },
{ { -1, -1, 1 }, { 0, 0 }, 0xFF00FF00 },
{ { 0, 1, 0 }, { 0, 0 }, 0xFF00FF00 },
{ { -1, -1, 1 }, { 0, 0 }, 0xFF0000FF },
{ { 1, -1, 1 }, { 0, 0 }, 0xFF0000FF },
{ { 0, 1, 0 }, { 0, 0 }, 0xFF0000FF },
{ { 1, -1, 1 }, { 0, 0 }, 0xFFFFFF00 },
{ { 1, -1, -1 }, { 0, 0 }, 0xFFFFFF00 },
{ { 0, 1, 0 }, { 0, 0 }, 0xFFFFFF00 }
};
pPrismVertexBuffer = MFVertex_CreateVertexBuffer(pVertexDecl, 4*3, MFVBType_Static, prism);
pPrismMeshStateBlock = MFStateBlock_Create(64);
MFStateBlock_SetRenderState(pPrismMeshStateBlock, MFSCRS_VertexDeclaration, pVertexDecl);
MFStateBlock_SetRenderState(pPrismMeshStateBlock, MFSCRS_VertexBuffer(0), pPrismVertexBuffer);
// create box vertex buffer
Vertex box[12 * 3] = // 12 triangles, 2 per 6 faces of a cube
{
{ { -1, -1, -1 }, { 0, 0 }, 0xFFFFFFFF },
{ { -1, 1, -1 }, { 1, 0 }, 0xFFFFFFFF },
{ { 1, 1, -1 }, { 1, 1 }, 0xFFFFFFFF },
{ { -1, -1, -1 }, { 0, 0 }, 0xFFFFFFFF },
{ { 1, 1, -1 }, { 1, 1 }, 0xFFFFFFFF },
{ { 1, -1, -1 }, { 0, 1 }, 0xFFFFFFFF },
{ { -1, -1, 1 }, { 0, 0 }, 0xFFFFFFFF },
{ { 1, -1, 1 }, { 1, 0 }, 0xFFFFFFFF },
{ { 1, 1, 1 }, { 1, 1 }, 0xFFFFFFFF },
{ { -1, -1, 1 }, { 0, 0 }, 0xFFFFFFFF },
{ { 1, 1, 1 }, { 1, 1 }, 0xFFFFFFFF },
{ { -1, 1, 1 }, { 0, 1 }, 0xFFFFFFFF },
{ { 1, -1, 1 }, { 0, 0 }, 0xFFFFFFFF },
{ { 1, -1, -1 }, { 1, 0 }, 0xFFFFFFFF },
{ { 1, 1, -1 }, { 1, 1 }, 0xFFFFFFFF },
{ { 1, -1, 1 }, { 0, 0 }, 0xFFFFFFFF },
{ { 1, 1, -1 }, { 1, 1 }, 0xFFFFFFFF },
{ { 1, 1, 1 }, { 0, 1 }, 0xFFFFFFFF },
{ { -1, -1, 1 }, { 0, 0 }, 0xFFFFFFFF },
{ { -1, 1, 1 }, { 1, 0 }, 0xFFFFFFFF },
{ { -1, 1, -1 }, { 1, 1 }, 0xFFFFFFFF },
{ { -1, -1, 1 }, { 0, 0 }, 0xFFFFFFFF },
{ { -1, 1, -1 }, { 1, 1 }, 0xFFFFFFFF },
{ { -1, -1, -1 }, { 0, 1 }, 0xFFFFFFFF },
{ { -1, 1, 1 }, { 0, 0 }, 0xFFFFFFFF },
{ { 1, 1, 1 }, { 1, 0 }, 0xFFFFFFFF },
{ { 1, 1, -1 }, { 1, 1 }, 0xFFFFFFFF },
{ { -1, 1, 1 }, { 0, 0 }, 0xFFFFFFFF },
{ { 1, 1, -1 }, { 1, 1 }, 0xFFFFFFFF },
{ { -1, 1, -1 }, { 0, 1 }, 0xFFFFFFFF },
{ { -1, -1, 1 }, { 0, 0 }, 0xFFFFFFFF },
{ { -1, -1, -1 }, { 1, 0 }, 0xFFFFFFFF },
{ { 1, -1, -1 }, { 1, 1 }, 0xFFFFFFFF },
{ { -1, -1, 1 }, { 0, 0 }, 0xFFFFFFFF },
{ { 1, -1, -1 }, { 1, 1 }, 0xFFFFFFFF },
{ { 1, -1, 1 }, { 0, 1 }, 0xFFFFFFFF }
};
pBoxVertexBuffer = MFVertex_CreateVertexBuffer(pVertexDecl, 12*3, MFVBType_Static, box);
pBoxMeshStateBlock = MFStateBlock_Create(64);
MFStateBlock_SetRenderState(pBoxMeshStateBlock, MFSCRS_VertexDeclaration, pVertexDecl);
MFStateBlock_SetRenderState(pBoxMeshStateBlock, MFSCRS_VertexBuffer(0), pBoxVertexBuffer);
}