/**
* Create a clipper that will be used when blitting the RGB surface to the main display.
*
* This clipper prevents us to modify by mistake anything on the screen
* which doesn't belong to our window. For example when a part of our video
* window is hidden by another window.
*/
static void DirectXCreateClipper(vout_display_t *vd)
{
vout_display_sys_t *sys = vd->sys;
HRESULT hr;
/* Create the clipper */
hr = IDirectDraw2_CreateClipper(sys->ddobject, 0, &sys->clipper, NULL);
if (hr != DD_OK) {
msg_Warn(vd, "cannot create clipper (error %li)", hr);
goto error;
}
/* Associate the clipper to the window */
hr = IDirectDrawClipper_SetHWnd(sys->clipper, 0, sys->hvideownd);
if (hr != DD_OK) {
msg_Warn(vd, "cannot attach clipper to window (error %li)", hr);
goto error;
}
/* associate the clipper with the surface */
hr = IDirectDrawSurface_SetClipper(sys->display, sys->clipper);
if (hr != DD_OK)
{
msg_Warn(vd, "cannot attach clipper to surface (error %li)", hr);
goto error;
}
return;
error:
if (sys->clipper)
IDirectDrawClipper_Release(sys->clipper);
sys->clipper = NULL;
}
// Clipper FUnctions
void DDCreateClipper( LPDIRECTDRAW2 pDirectDraw, UINT32 fFlags, LPDIRECTDRAWCLIPPER *pDDClipper )
{
Assert( pDirectDraw != NULL );
Assert( pDDClipper != NULL );
ATTEMPT( IDirectDraw2_CreateClipper( pDirectDraw, 0, pDDClipper, NULL ) );
}
//
// - returns true if DirectDraw was initialized properly
//
int InitDirectDrawe (HWND appWin, int width, int height, int bpp, int fullScr)
{
DDSURFACEDESC ddsd; // DirectDraw surface description for allocating
DDSCAPS ddscaps;
HRESULT ddrval;
DWORD dwStyle;
RECT rect;
// enumerate directdraw devices
//if (FAILED(DirectDrawEnumerate (myEnumDDDevicesCallback, NULL)))
// I_Error("Error with DirectDrawEnumerate");
if (!DDr2)
CreateDirectDrawInstance();
// remember what screen mode we are in
bAppFullScreen = fullScr;
ScreenHeight = height;
ScreenWidth = width;
if (bAppFullScreen)
{
// Change window attributes
dwStyle = WS_POPUP | WS_VISIBLE;
SetWindowLong (appWin, GWL_STYLE, dwStyle);
SetWindowPos(appWin, HWND_TOPMOST, 0, 0, 0, 0, SWP_NOACTIVATE |
SWP_NOMOVE | SWP_NOSIZE | SWP_NOZORDER);
// Get exclusive mode
ddrval = IDirectDraw2_SetCooperativeLevel(DDr2, appWin, DDSCL_EXCLUSIVE |
DDSCL_FULLSCREEN |
DDSCL_ALLOWREBOOT);
if (ddrval != DD_OK)
I_Error("SetCooperativeLevel FAILED: %s\n", DXErrorToString(ddrval));
// Switch from windows desktop to fullscreen
#ifdef NT4COMPAT
ddrval = IDirectDraw2_SetDisplayMode(DDr2, width, height, bpp, 0, 0);
#else
ddrval = IDirectDraw2_SetDisplayMode(DDr2, width, height, bpp, 0, DDSDM_STANDARDVGAMODE);
#endif
if (ddrval != DD_OK)
I_Error("SetDisplayMode FAILED: %s\n", DXErrorToString(ddrval));
// This is not really needed, except in certain cases. One case
// is while using MFC. When the desktop is initally at 16bpp, a mode
// switch to 8bpp somehow causes the MFC window to not fully initialize
// and a CreateSurface will fail with DDERR_NOEXCLUSIVEMODE. This will
// ensure that the window is initialized properly after a mode switch.
ShowWindow(appWin, SW_SHOW);
// Create the primary surface with 1 back buffer. Always zero the
// DDSURFACEDESC structure and set the dwSize member!
ZeroMemory(&ddsd, sizeof (ddsd));
ddsd.dwSize = sizeof (ddsd);
ddsd.dwFlags = DDSD_CAPS | DDSD_BACKBUFFERCOUNT;
ddsd.ddsCaps.dwCaps = DDSCAPS_PRIMARYSURFACE | DDSCAPS_FLIP | DDSCAPS_COMPLEX;
// for fullscreen we use page flipping, for windowed mode, we blit the hidden surface to
// the visible surface, in both cases we have a visible (or 'real') surface, and a hidden
// (or 'virtual', or 'backbuffer') surface.
ddsd.dwBackBufferCount = 2;
ddrval = IDirectDraw2_CreateSurface(DDr2,&ddsd, &ScreenReal, NULL);
if (ddrval != DD_OK)
I_Error("CreateSurface Primary Screen FAILED");
// Get a pointer to the back buffer
ddscaps.dwCaps = DDSCAPS_BACKBUFFER;
ddrval = IDirectDrawSurface_GetAttachedSurface(ScreenReal,&ddscaps, &ScreenVirtual);
if (ddrval != DD_OK)
I_Error("GetAttachedSurface FAILED");
}
else
{
rect.top = 0;
rect.left = 0;
rect.bottom = height;
rect.right = width;
// Change window attributes
dwStyle = GetWindowStyle(appWin);
dwStyle &= ~WS_POPUP;
dwStyle |= WS_OVERLAPPED | WS_SYSMENU | WS_CAPTION;
SetWindowLong(appWin, GWL_STYLE, dwStyle);
// Resize the window so that the client area is the requested width/height
AdjustWindowRectEx(&rect, GetWindowStyle(appWin), GetMenu(appWin) != NULL,
GetWindowExStyle(appWin));
// Just in case the window was moved off the visible area of the
// screen.
SetWindowPos(appWin, NULL, 0, 0, rect.right-rect.left,
rect.bottom-rect.top, SWP_NOMOVE | SWP_NOZORDER |
SWP_NOACTIVATE);
SetWindowPos(appWin, HWND_NOTOPMOST, 0, 0, 0, 0,
SWP_NOSIZE | SWP_NOMOVE | SWP_NOACTIVATE);
// Exclusive mode is normal since it's in windowed mode and needs
// to cooperate with GDI
ddrval = IDirectDraw2_SetCooperativeLevel(DDr2,appWin, DDSCL_NORMAL);
if (ddrval != DD_OK)
I_Error("SetCooperativeLevel FAILED");
// Always zero the DDSURFACEDESC structure and set the dwSize member!
ZeroMemory(&ddsd, sizeof (ddsd));
ddsd.dwSize = sizeof (ddsd);
ddsd.dwFlags = DDSD_CAPS;
ddsd.ddsCaps.dwCaps = DDSCAPS_PRIMARYSURFACE;
// Create the primary surface
ddrval = IDirectDraw2_CreateSurface(DDr2,&ddsd, &ScreenReal, NULL);
if (ddrval != DD_OK)
I_Error("CreateSurface Primary Screen FAILED");
// Create a back buffer for offscreen rendering, this will be used to
// blt to the primary
ScreenVirtual = CreateNewSurface(width, height, DDSCAPS_OFFSCREENPLAIN |
DDSCAPS_SYSTEMMEMORY);
if (ScreenVirtual == NULL)
I_Error("CreateSurface Secondary Screen FAILED");
/// \todo get the desktop bit depth, and build a lookup table
/// for quick conversions of 8bit color indexes 0-255 to desktop colors
/// eg: 256 entries of equivalent of palette colors 0-255 in 15,16,24,32 bit format
/// when blit virtual to real, convert pixels through lookup table..
// Use a clipper object for clipping when in windowed mode
// (make sure our drawing doesn't affect other windows)
ddrval = IDirectDraw2_CreateClipper (DDr2, 0, &windclip, 0);
if (ddrval != DD_OK)
I_Error("CreateClipper FAILED");
// Associate the clipper with the window.
ddrval = IDirectDrawClipper_SetHWnd (windclip,0, appWin);
if (ddrval != DD_OK)
I_Error("Clipper -> SetHWnd FAILED");
// Attach the clipper to the surface.
ddrval = IDirectDrawSurface_SetClipper (ScreenReal,windclip);
if (ddrval != DD_OK)
I_Error("PrimaryScreen -> SetClipperClipper FAILED");
}
return TRUE;
}
int directdraw_init(HWND hwndp)
{
int width = 320, height = 200;
RECT rect;
DDPIXELFORMAT format;
DDSURFACEDESC descriptor;
DIRECTDRAWCREATE DirectDrawCreate;
if(lpDDS) return 0;
if(!hwndp) return 0;
if(video_window) return 0; /* you gotta uninitialize it first */
library = (HMODULE) LoadLibrary(uni("ddraw.dll"));
if(!library) return 0;
DirectDrawCreate = (DIRECTDRAWCREATE) GetProcAddress(library, "DirectDrawCreate");
if(!DirectDrawCreate) return 0;
if(FAILED(DirectDrawCreate(0,&lpDD,0))) return 0;
wc.style = CS_VREDRAW | CS_HREDRAW | CS_DBLCLKS;
wc.lpfnWndProc = WndProc;
wc.cbClsExtra = 0;
wc.cbWndExtra = 0;
wc.hInstance = 0;
wc.hIcon = 0;
wc.hCursor = LoadCursor(0, IDC_ARROW);
wc.hbrBackground = 0;
wc.lpszMenuName = 0;
wc.lpszClassName = window_class_name;
RegisterClass(&wc);
video_window = CreateWindow(window_class_name, uni("Video"), WS_CHILD, 0, 0, width, height, hwndp, 0, 0, 0);
ShowWindow(video_window, SW_NORMAL);
if(FAILED(IDirectDraw2_SetCooperativeLevel(lpDD, video_window, DDSCL_NORMAL))) return 0;
descriptor.dwSize = sizeof(descriptor);
descriptor.dwFlags = DDSD_CAPS;
descriptor.ddsCaps.dwCaps = DDSCAPS_PRIMARYSURFACE | DDSCAPS_VIDEOMEMORY;
if(FAILED(IDirectDraw2_CreateSurface(lpDD, &descriptor, &lpDDS, 0))) return 0;
descriptor.dwFlags = DDSD_CAPS | DDSD_HEIGHT | DDSD_WIDTH;
descriptor.ddsCaps.dwCaps = DDSCAPS_OFFSCREENPLAIN;
descriptor.dwWidth = d_width ;
descriptor.dwHeight = d_height;
if(FAILED(IDirectDraw2_CreateSurface(lpDD, &descriptor, &lpDDS_secondary, 0))) return 0;
if(FAILED(IDirectDraw2_CreateClipper(lpDD, 0, &lpDDC, 0))) return 0;
if(FAILED(IDirectDrawClipper_SetHWnd(lpDDC, 0, video_window))) return 0;
if(FAILED(IDirectDrawSurface2_SetClipper(lpDDS, lpDDC))) return 0;
lpDDS_back = lpDDS_secondary;
format.dwSize = sizeof(format);
if(FAILED(IDirectDrawSurface2_GetPixelFormat(lpDDS, &format))) return 0;
if(!(format.dwFlags & DDPF_RGB)) return 0;
IDirectDraw2_EnumDisplayModes(lpDD, DDEDM_STANDARDVGAMODES, 0, 0, EnumDisplayModesCallback);
osd_initialize();
osd_created = 0;
return 1;
}
static int
DDCreateSurface(directx_priv *priv, ggi_mode *mode)
{
HRESULT hr;
LPDIRECTDRAWCLIPPER pClipper;
DDSURFACEDESC pddsd, bddsd;
int i;
if (!priv->fullscreen)
IDirectDraw2_SetCooperativeLevel(priv->lpddext, priv->hWnd,
DDSCL_NORMAL);
else {
/* Only the thread that has excluse access (Cooperative level)
* may restore the surfaces when they are lost. Therefore
* let the helper thread get exclusive access so that it can
* later do restores.
*/
directx_fullscreen dxfull;
dxfull.priv = priv;
dxfull.mode = mode;
dxfull.event = CreateEvent(NULL, FALSE, FALSE, NULL);
PostThreadMessage(priv->nThreadID,
WM_DDFULLSCREEN, 0, (long)&dxfull);
WaitForSingleObject(dxfull.event, INFINITE);
CloseHandle(dxfull.event);
}
/* create the primary surface */
memset(&pddsd, 0, sizeof(pddsd));
pddsd.dwSize = sizeof(pddsd);
pddsd.dwFlags = DDSD_CAPS;
pddsd.ddsCaps.dwCaps = DDSCAPS_PRIMARYSURFACE;
if (priv->fullscreen)
pddsd.ddsCaps.dwCaps |= DDSCAPS_VIDEOMEMORY;
hr = IDirectDraw2_CreateSurface(priv->lpddext, &pddsd,
&priv->lppdds, NULL);
if (hr != 0) {
fprintf(stderr,
"Init Primary Surface Failed RC = %lx. Exiting\n",
hr);
exit(-1);
}
IDirectDraw2_CreateClipper(priv->lpddext, 0, &pClipper, NULL);
IDirectDrawClipper_SetHWnd(pClipper, 0, priv->hWnd);
IDirectDrawSurface_SetClipper(priv->lppdds, pClipper);
IDirectDrawClipper_Release(pClipper);
pddsd.dwSize = sizeof(pddsd);
IDirectDrawSurface_GetSurfaceDesc(priv->lppdds, &pddsd);
DPRINT_MISC("DDraw pixel format:\n");
DPRINT_MISC(" Size %u\n", pddsd.ddpfPixelFormat.dwSize);
DPRINT_MISC(" Flags %08x\n", pddsd.ddpfPixelFormat.dwFlags);
DPRINT_MISC(" FourCC %08x\n", pddsd.ddpfPixelFormat.dwFourCC);
DPRINT_MISC(" Count %u\n", pddsd.ddpfPixelFormat.dwRGBBitCount);
DPRINT_MISC(" R-Mask(etc) %08x\n", pddsd.ddpfPixelFormat.dwRBitMask);
DPRINT_MISC(" G-Mask(etc) %08x\n", pddsd.ddpfPixelFormat.dwGBitMask);
DPRINT_MISC(" B-Mask(etc) %08x\n", pddsd.ddpfPixelFormat.dwBBitMask);
DPRINT_MISC(" Z-Mask(etc) %08x\n",
pddsd.ddpfPixelFormat.dwRGBZBitMask);
/* create the back storages */
for (i = 0; i < mode->frames; ++i) {
memset(&bddsd, 0, sizeof(bddsd));
bddsd.dwSize = sizeof(bddsd);
bddsd.dwFlags =
DDSD_CAPS | DDSD_HEIGHT | DDSD_WIDTH | DDSD_PIXELFORMAT;
bddsd.ddsCaps.dwCaps =
DDSCAPS_OFFSCREENPLAIN | DDSCAPS_SYSTEMMEMORY;
bddsd.dwWidth = mode->virt.x;
bddsd.dwHeight = mode->virt.y;
/* set up the pixel format */
ZeroMemory(&bddsd.ddpfPixelFormat, sizeof(DDPIXELFORMAT));
bddsd.ddpfPixelFormat.dwSize = sizeof(DDPIXELFORMAT);
bddsd.ddpfPixelFormat.dwFlags =
pddsd.ddpfPixelFormat.dwFlags;
bddsd.ddpfPixelFormat.dwFourCC =
pddsd.ddpfPixelFormat.dwFourCC;
bddsd.ddpfPixelFormat.dwRGBBitCount =
pddsd.ddpfPixelFormat.dwRGBBitCount;
bddsd.ddpfPixelFormat.dwRBitMask =
pddsd.ddpfPixelFormat.dwRBitMask;
bddsd.ddpfPixelFormat.dwGBitMask =
pddsd.ddpfPixelFormat.dwGBitMask;
bddsd.ddpfPixelFormat.dwBBitMask =
pddsd.ddpfPixelFormat.dwBBitMask;
bddsd.ddpfPixelFormat.dwRGBAlphaBitMask =
pddsd.ddpfPixelFormat.dwRGBAlphaBitMask;
hr = IDirectDraw2_CreateSurface(priv->lpddext,
&bddsd, &priv->lpbdds[i],
NULL);
if (hr) {
fprintf(stderr,
"Init Backup Failed RC = %lx. Exiting\n", hr);
exit(-1);
}
IDirectDrawSurface2_Lock(priv->lpbdds[i], NULL, &bddsd,
DDLOCK_SURFACEMEMORYPTR, NULL);
priv->lpSurfaceAdd[i] = (char *) bddsd.lpSurface;
IDirectDrawSurface2_Unlock(priv->lpbdds[i],
bddsd.lpSurface);
}
/* set private mode parameters */
priv->maxX = mode->virt.x;
priv->maxY = mode->virt.y;
priv->ColorDepth = pddsd.ddpfPixelFormat.dwRGBBitCount;
priv->pitch = bddsd.lPitch;
if (pddsd.ddpfPixelFormat.dwFlags & DDPF_PALETTEINDEXED8) {
static PALETTEENTRY pal[256];
/* todo fill in pal */
hr = IDirectDraw_CreatePalette(priv->lpddext,
DDPCAPS_8BIT|DDPCAPS_ALLOW256,
pal, &priv->lpddp, NULL);
if (hr) {
fprintf(stderr,
"Init Palette failed RC = %lx. Exiting\n",
hr);
exit(-1);
}
hr = IDirectDrawSurface_SetPalette(priv->lppdds, priv->lpddp);
if (hr) {
fprintf(stderr,
"Install Palette failed RC = %lx. Exiting\n",
hr);
exit(-1);
}
}
return 1;
}
