Original Post
H'okay, generally I was using openGL for 2D and 3D graphics, so I thought I'd diversify a bit and give DDraw a shot. Now, I've gotten this far: I have fully initialized everything, and have a working double buffer between my front n back surfaces. When I try to use other surfaces though, there are some issues. When I started, my goal was to make a smaller test surface and fill it blue, while the background was filled black. Simple enough, but when I do a colour fill on my test surface, it fills the entire front surface. That sucks!! Also, I found that when I attempt to use the DD7::BltFast function, I get a segfault. So I thought maybe my surface wasn't created properly. Anyway, here's some code. Gimme a hand please O_o
Sprite::Sprite(AppWindow * win, int X,int Y,int W,int H)
{
window = win;
x = X; y = Y; width = W; height = H;
DDSURFACEDESC2 ddsd;
ZeroMemory(&ddsd, sizeof(ddsd));
ddsd.dwFlags = DDSD_CAPS | DDSD_HEIGHT | DDSD_WIDTH;
ddsd.ddsCaps.dwCaps = DDSCAPS_OFFSCREENPLAIN;
ddsd.dwHeight = width;
ddsd.dwWidth = height;
lpDD->CreateSurface( &ddsd, &surface, NULL );
}
Sprite::~Sprite()
{
}
void Sprite::_Draw()
{
HRESULT ddrval = DD_OK;
//ddrval = lpDDSBack->BltFast( x, y, surface, NULL,
// DDBLTFAST_NOCOLORKEY | DDBLTFAST_WAIT);
DDPIXELFORMAT ddpf;
ddpf.dwSize = sizeof(ddpf);
DDBLTFX ddbltfx;
ddbltfx.dwSize = sizeof(ddbltfx);
ddbltfx.dwFillColor = 0; // Pure blue
RECT r, r2;
r.left = 0;
r.top = 0;
r.right = 640;
r.bottom = 480;
//lpDDSBack->Blt(&r2, NULL, &r2, DDBLT_COLORFILL, &ddbltfx);
ddrval = lpDDSBack->Blt(&r,surface, 0,
DDBLTFAST_NOCOLORKEY | DDBLTFAST_WAIT, 0);
if ( ddrval != DD_OK )
{
//lpDD->Release();
}
//ddrval = lpDDSOffscreen->Blt(NULL, surface, NULL, DDBLTFAST_WAIT, &ddbltfx);
//ddrval = lpDDSBack->Blt(NULL, surface, NULL, DDBLT_COLORFILL, &ddbltfx);
//lpDDSPrimary->Flip(surface, NULL);
//if(ddrval != DD_OK)
//return;
}