void dx11render::renderLine(const point& begin, const point& end, const color& col)
{
if( m_device == NULL ) return;
UINT viewportNumber = 1;
D3D11_VIEWPORT vp;
m_deviceContext->RSGetViewports( &viewportNumber, &vp );
float xx0 = 2.0f * ( begin.getX() - 0.5f ) / vp.Width - 1.0f;
float yy0 = 1.0f - 2.0f * ( begin.getY() - 0.5f ) / vp.Height;
float xx1 = 2.0f * ( end.getX() - 0.5f ) / vp.Width - 1.0f;
float yy1 = 1.0f - 2.0f * ( end.getY() - 0.5f ) / vp.Height;
COLOR_VERTEX* v = NULL;
D3D11_MAPPED_SUBRESOURCE mapData;
if( FAILED( m_deviceContext->Map( m_pVertexBuffer, NULL, D3D11_MAP_WRITE_DISCARD, NULL, &mapData ) ) )
return;
v = ( COLOR_VERTEX* ) mapData.pData;
v[0].Position.x = xx0;
v[0].Position.y = yy0;
v[0].Position.z = 0;
v[0].Color = col.toD3DXCOLOR();
v[1].Position.x = xx1;
v[1].Position.y = yy1;
v[1].Position.z = 0;
v[1].Color = col.toD3DXCOLOR();
m_deviceContext->Unmap( m_pVertexBuffer, NULL );
m_deviceContext->IASetInputLayout( m_pInputLayout );
UINT Stride = sizeof( COLOR_VERTEX );
UINT Offset = 0;
m_deviceContext->IASetVertexBuffers( 0, 1, &m_pVertexBuffer, &Stride, &Offset );
m_deviceContext->IASetPrimitiveTopology( D3D11_PRIMITIVE_TOPOLOGY_LINESTRIP );
D3DX11_TECHNIQUE_DESC techDesc;
if( FAILED( m_pTechnique->GetDesc( &techDesc ) ) )
{
return;
}
for( UINT p = 0; p < techDesc.Passes; ++p )
{
m_pTechnique->GetPassByIndex( p )->Apply( 0, m_deviceContext );
m_deviceContext->Draw( 2, 0 );
}
}
void dx11render::fillGradient(const rect& r, const color& top, const color& bottom)
{
drawRect_(top.toD3DXCOLOR(), bottom.toD3DXCOLOR(), r.getX(), r.getY(), r.getX() + r.getW(), r.getY() + r.getH());
}
void dx11render::fillRect(const rect& r, const color& c)
{
drawRect_(c.toD3DXCOLOR(), c.toD3DXCOLOR(), r.getX(), r.getY(), r.getX() + r.getW(), r.getY() + r.getH());
}