//-----------------------------------------------------------------------
void MeshReadHelper::lockVertexBuffer()
{
VertexData* vertexData = mCurSubMeshInfoV->vertexData;
if(vertexData == mVertexData)
return; //
if(!vertexData)
{
unlockVertexBuffer();
return; // error, exiting with mIndexPtr == nullptr
}
mVertexData = vertexData;
const VertexElement* positionElem = mVertexData->vertexDeclaration->findElementBySemantic(VES_POSITION);
if(!positionElem)
{
unlockVertexBuffer();
return; // error, exiting with mIndexPtr == nullptr
}
mVertexOffset = positionElem->getOffset();
mVertexType = positionElem->getType();
HardwareVertexBufferSharedPtr vertexBuffer = mVertexData->vertexBufferBinding->getBuffer(positionElem->getSource());
if(vertexBuffer == mVertexBuffer)
return; // continue using the same buffer
unlockVertexBuffer();
mVertexData = vertexData;
mVertexBuffer = vertexBuffer;
if(mVertexBuffer.isNull())
return; // error, exiting with mIndexPtr == nullptr
mVertexSize = mVertexBuffer->getVertexSize();
assert(mVertexPtr == nullptr);
if(mVertexBuffer == mTexCoordBuffer)
{
mVertexPtr = mTexCoordPtr;
}
else
{
mVertexPtr = mVertexBuffer->lock( HardwareBuffer::HBL_READ_ONLY );
}
}
//-----------------------------------------------------------------------
void MeshReadHelper::unlockAllBuffers()
{
unlockIndexBuffer();
unlockVertexBuffer();
unlockTexCoordBuffer();
resetCurPointers();
}
VOID JCDisplayObject::render()
{
if(m_lpTexture != NULL)
{
lockVertexBuffer();
updateVertexBufferAlpha();
updateVertexBufferXYWH();
unlockVertexBuffer();
m_lpd3dd->SetTexture(0, m_lpTexture);
if(m_alphaEnabled)
{
m_lpd3dd->SetRenderState(D3DRS_ALPHABLENDENABLE, TRUE);
m_lpd3dd->SetRenderState(D3DRS_SRCBLEND, D3DBLEND_SRCALPHA);
m_lpd3dd->SetRenderState(D3DRS_DESTBLEND, D3DBLEND_INVSRCALPHA);
m_lpd3dd->SetTextureStageState(0, D3DTSS_ALPHAARG1, D3DTA_TEXTURE);
m_lpd3dd->SetTextureStageState(0, D3DTSS_ALPHAARG2, D3DTA_DIFFUSE);
m_lpd3dd->SetTextureStageState(0, D3DTSS_ALPHAOP, D3DTOP_MODULATE);
}
else
{
m_lpd3dd->SetRenderState(D3DRS_ALPHABLENDENABLE, FALSE);
}
m_lpd3dd->SetTextureStageState(0, D3DTSS_COLORARG1, D3DTA_TEXTURE);
m_lpd3dd->SetTextureStageState(0, D3DTSS_COLORARG2, D3DTA_DIFFUSE);
m_lpd3dd->SetTextureStageState(0, D3DTSS_COLOROP, D3DTOP_ADD);
m_lpd3dd->SetStreamSource(0, m_lpVB, 0, sizeof(Vertex));
m_lpd3dd->SetFVF(Vertex::FVF);
m_lpd3dd->DrawPrimitive(D3DPT_TRIANGLESTRIP, 0, 2);
}
}
//
// Creates a copy of the mesh which has no image or material specifications
DirectX::Mesh* DirectX::Mesh::cloneOutline( Mesh* out )
{
if( !out ) out = new Mesh( ); out->release( );
unsigned int nVertices = m_mesh->GetNumVertices( );
unsigned int nFaces = m_mesh->GetNumFaces( );
unsigned long options = m_mesh->GetOptions( );
unsigned int fvf = m_mesh->GetFVF( );
void* vertices = lockVertexBuffer( D3DLOCK_READONLY );
void* indices = lockIndexBuffer( D3DLOCK_READONLY );
out->create( vertices, indices, fvf, nVertices, nFaces, options );
unlockVertexBuffer( ); unlockIndexBuffer( );
out->update( ); return out;
}
VOID JCDisplayObject::initVertexBuffer()
{
if(m_lpVB == NULL)
{
jccommon_hResultVerifyM(m_lpd3dd->CreateVertexBuffer(VB_SIZE, D3DUSAGE_WRITEONLY, Vertex::FVF, D3DPOOL_MANAGED, &m_lpVB, NULL));
lockVertexBuffer();
Vertex vbData[] = {
Vertex(0.0f, 0.0f, 0xFF000000, 0.0f, 1.0f),
Vertex(0.0f, 0.0f, 0xFF000000, 0.0f, 0.0f),
Vertex(0.0f, 0.0f, 0xFF000000, 1.0f, 1.0f),
Vertex(0.0f, 0.0f, 0xFF000000, 1.0f, 0.0f)
};
jccommon_memcpyM(m_lpVBData, &vbData, VB_SIZE);
updateVertexBufferXYWH();
updateVertexBufferAlpha();
unlockVertexBuffer();
}
}
