DDScreen::DDScreen(int w, int h, int bpp, const char *title) throw()
:Window( title), DDrawWindow(title, w, h, bpp), _w(w), _h(h), _bpp(bpp)
{
SetClipper( Rect( w, h));
Clear(0L); Swap();
SetClipper( Rect( w, h));
Clear(0L); Swap();
}
void DDScreen::Open(int w, int h, int bpp, float refresh)
{
assert( refresh == 0 && "refresh rate is not implemented for DDraw7" );
_bpp=bpp; _w=w; _h=h;
if( FAILED( DDrawWindow::GetDisplay().CreateFullScreen( Window::GetHandle(), w, h, bpp ) ) )
{
DDScreen_ERROR( Useless::Error("DDrawDDScreen::Open() Mode %ix%ix%i is not supported",w,h,bpp) );
}
SetClipper( Rect( w, h));
Clear(0L); Swap();
SetClipper( Rect( w, h));
Clear(0L); Swap();
}
void DDScreen::OpenWindowed(int w, int h)
{
_bpp=0; _w=w; _h=h;
if( FAILED( DDrawWindow::GetDisplay().CreateWindowed( Window::GetHandle(), w, h ) ) )
{
DDScreen_ERROR( Useless::Error("DDrawDDScreen::Open() Mode %ix%i is not supported",w,h) );
}
Show();
SetClipper( Rect( w, h));
Clear(0L); Swap();
}
MyDrawEngine::MyDrawEngine(int width, int height, int bitsPerPixel, HWND hwnd, bool bFullScreen)
{
HRESULT err;
DWORD CoopLevel;
//Hack - I reckon a boolean needs to be passed into GameInit() from wincode.cpp
//which is then passed into the MyDrawEngine constructor, rather than an extern! - Dan
mbFullScreen = bFullScreen;
// Set attributes
ZeroMemory(&ddsd, sizeof(ddsd));
bytesPerPixel = bitsPerPixel/8;
lpBackBuffer = NULL;
lpPrimarySurface = NULL;
lpClipper = NULL;
memoryPitch = 0;
screenHeight = height;
screenWidth = width;
videoAddress = NULL;
mHwnd = hwnd;
//Configure cooperative mode flags
if(mbFullScreen)
{
CoopLevel = DDSCL_ALLOWMODEX | DDSCL_FULLSCREEN | DDSCL_EXCLUSIVE | DDSCL_ALLOWREBOOT;
}
else
{
CoopLevel = DDSCL_NORMAL;
}
// to do: add defensive programming
err=DirectDrawCreateEx(0,(void**)&lpdd,IID_IDirectDraw7,0);
if (FAILED(err))
{
ErrorLogger::Writeln("Could not connect to IDirectDraw7");
ErrorLogger::Writeln(ErrorString(err));
lpdd=NULL;
return; // No point going any further
}
// set cooperation level
err=lpdd->SetCooperativeLevel(hwnd, CoopLevel);
if (FAILED(err))
{
ErrorLogger::Writeln("Could not set cooperative level");
ErrorLogger::Writeln(ErrorString(err));
lpdd->Release();
lpdd=NULL;
return; // No point going any further
}
// set display mode
if( mbFullScreen )
{
err=lpdd->SetDisplayMode(width,height,bytesPerPixel*8,0,0);
if (FAILED(err))
{
ErrorLogger::Writeln("Could not set display mode");
ErrorLogger::Writeln(ErrorString(err));
lpdd->Release();
lpdd=NULL;
return; // No point going any further
}
}
// Create the primary surface
// First, make out an "order form" for the surface
ZeroMemory(&ddsd, sizeof(ddsd));
ddsd.dwSize = sizeof(ddsd);
if( mbFullScreen )
{
ddsd.dwFlags = DDSD_CAPS | DDSD_BACKBUFFERCOUNT;
ddsd.ddsCaps.dwCaps = DDSCAPS_PRIMARYSURFACE | DDSCAPS_FLIP | DDSCAPS_COMPLEX;
ddsd.dwBackBufferCount = 1;
}
else
{
ddsd.dwFlags = DDSD_CAPS;
ddsd.ddsCaps.dwCaps = DDSCAPS_PRIMARYSURFACE;
}
// Now get the primarySurface
err=lpdd->CreateSurface(&ddsd,&lpPrimarySurface,NULL);
if(FAILED(err))
{
ErrorLogger::Writeln("Failed to create primary surface");
ErrorLogger::Writeln(ErrorString(err));
lpdd->Release();
lpdd=NULL;
return; // No point going any further
}
// --- Now get the back buffer ---
if(mbFullScreen)
{
// Generic surface capabilities struct
DDSCAPS2 ddsCaps;
//Clear it
ZeroMemory(&ddsCaps, sizeof(ddsCaps));
ddsCaps.dwCaps = DDSCAPS_BACKBUFFER | DDSCAPS_FLIP;
err=lpPrimarySurface->GetAttachedSurface(&ddsCaps,&lpBackBuffer);
}
else
{
DDSURFACEDESC2 desc;
ZeroMemory(&desc, sizeof(DDSURFACEDESC2));
desc.dwSize = sizeof(DDSURFACEDESC2);
desc.dwFlags = DDSD_CAPS | DDSD_HEIGHT | DDSD_WIDTH;
desc.ddsCaps.dwCaps = DDSCAPS_OFFSCREENPLAIN;
desc.dwWidth = width;
desc.dwHeight = height;
err = lpdd->CreateSurface(&desc, &lpBackBuffer, NULL);
}
if(FAILED(err))
{
ErrorLogger::Writeln("Failed to obtain back surface");
ErrorLogger::Writeln(ErrorString(err));
lpClipper->Release();
lpPrimarySurface->Release();
lpdd->Release();
lpdd=NULL;
return; // No point going any further
}
//Create a clipper for the back buffer!
tagRECT clipArea;
clipArea.top = 0;
clipArea.left = 0;
clipArea.bottom = height;
clipArea.right = width;
// Set clipper for back buffer surface
// Chris - this function should be made to be more generic,
// so that it can be applied to any direct draw surface
SetClipper(1, &clipArea);
// clear primary and secondary surfaces
ClearBackBuffer();
Flip();
ClearBackBuffer();
}
