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Diffstat (limited to 'hw/xwin/winpfbdd.c')
-rw-r--r--hw/xwin/winpfbdd.c684
1 files changed, 684 insertions, 0 deletions
diff --git a/hw/xwin/winpfbdd.c b/hw/xwin/winpfbdd.c
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+++ b/hw/xwin/winpfbdd.c
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+/*
+ *Copyright (C) 1994-2000 The XFree86 Project, Inc. All Rights Reserved.
+ *
+ *Permission is hereby granted, free of charge, to any person obtaining
+ * a copy of this software and associated documentation files (the
+ *"Software"), to deal in the Software without restriction, including
+ *without limitation the rights to use, copy, modify, merge, publish,
+ *distribute, sublicense, and/or sell copies of the Software, and to
+ *permit persons to whom the Software is furnished to do so, subject to
+ *the following conditions:
+ *
+ *The above copyright notice and this permission notice shall be
+ *included in all copies or substantial portions of the Software.
+ *
+ *THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ *EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ *MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ *NONINFRINGEMENT. IN NO EVENT SHALL THE XFREE86 PROJECT BE LIABLE FOR
+ *ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF
+ *CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+ *WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ *
+ *Except as contained in this notice, the name of the XFree86 Project
+ *shall not be used in advertising or otherwise to promote the sale, use
+ *or other dealings in this Software without prior written authorization
+ *from the XFree86 Project.
+ *
+ * Authors: Dakshinamurthy Karra
+ * Suhaib M Siddiqi
+ * Peter Busch
+ * Harold L Hunt II
+ */
+
+#ifdef HAVE_XWIN_CONFIG_H
+#include <xwin-config.h>
+#endif
+#include "win.h"
+
+
+/*
+ * External symbols
+ */
+
+extern const GUID _IID_IDirectDraw2;
+extern HWND g_hDlgExit;
+
+
+/*
+ * Local function prototypes
+ */
+
+static Bool
+winAllocateFBPrimaryDD (ScreenPtr pScreen);
+
+static Bool
+winCloseScreenPrimaryDD (int nIndex, ScreenPtr pScreen);
+
+static Bool
+winInitVisualsPrimaryDD (ScreenPtr pScreen);
+
+static Bool
+winAdjustVideoModePrimaryDD (ScreenPtr pScreen);
+
+static Bool
+winActivateAppPrimaryDD (ScreenPtr pScreen);
+
+static Bool
+winHotKeyAltTabPrimaryDD (ScreenPtr pScreen);
+
+
+/*
+ * Create a DirectDraw primary surface
+ */
+
+static Bool
+winAllocateFBPrimaryDD (ScreenPtr pScreen)
+{
+ winScreenPriv(pScreen);
+ winScreenInfo *pScreenInfo = pScreenPriv->pScreenInfo;
+ HRESULT ddrval = DD_OK;
+ DDSURFACEDESC ddsd;
+ DDSURFACEDESC *pddsdPrimary = NULL;
+ DDSURFACEDESC *pddsdOffscreen = NULL;
+ RECT rcClient;
+
+ ErrorF ("winAllocateFBPrimaryDD\n");
+
+ /* Get client area location in screen coords */
+ GetClientRect (pScreenPriv->hwndScreen, &rcClient);
+ MapWindowPoints (pScreenPriv->hwndScreen,
+ HWND_DESKTOP,
+ (LPPOINT)&rcClient, 2);
+
+ /* Create a DirectDraw object, store the address at lpdd */
+ ddrval = (*g_fpDirectDrawCreate) (NULL, &pScreenPriv->pdd, NULL);
+ if (ddrval != DD_OK)
+ FatalError ("winAllocateFBPrimaryDD - Could not start DirectDraw\n");
+
+ /* Get a DirectDraw2 interface pointer */
+ ddrval = IDirectDraw_QueryInterface (pScreenPriv->pdd,
+ &IID_IDirectDraw2,
+ (LPVOID*) &pScreenPriv->pdd2);
+ if (FAILED (ddrval))
+ {
+ ErrorF ("winAllocateFBShadowDD - Failed DD2 query: %08x\n",
+ (unsigned int) ddrval);
+ return FALSE;
+ }
+
+
+ ErrorF ("winAllocateFBPrimaryDD - Created and initialized DD\n");
+
+ /* Are we windowed or fullscreen? */
+ if (pScreenInfo->fFullScreen)
+ {
+ /* Full screen mode */
+ ddrval = IDirectDraw2_SetCooperativeLevel (pScreenPriv->pdd2,
+ pScreenPriv->hwndScreen,
+ DDSCL_FULLSCREEN
+ | DDSCL_EXCLUSIVE);
+ if (FAILED (ddrval))
+ FatalError ("winAllocateFBPrimaryDD - Could not set "
+ "cooperative level\n");
+
+ /* Change the video mode to the mode requested */
+ ddrval = IDirectDraw2_SetDisplayMode (pScreenPriv->pdd2,
+ pScreenInfo->dwWidth,
+ pScreenInfo->dwHeight,
+ pScreenInfo->dwBPP,
+ pScreenInfo->dwRefreshRate,
+ 0);
+ if (FAILED (ddrval))
+ FatalError ("winAllocateFBPrimaryDD - Could not set "
+ "full screen display mode\n");
+ }
+ else
+ {
+ /* Windowed mode */
+ ddrval = IDirectDraw2_SetCooperativeLevel (pScreenPriv->pdd2,
+ pScreenPriv->hwndScreen,
+ DDSCL_NORMAL);
+ if (FAILED (ddrval))
+ FatalError ("winAllocateFBPrimaryDD - Could not set "
+ "cooperative level\n");
+ }
+
+ /* Describe the primary surface */
+ ZeroMemory (&ddsd, sizeof (ddsd));
+ ddsd.dwSize = sizeof (ddsd);
+ ddsd.dwFlags = DDSD_CAPS;
+ ddsd.ddsCaps.dwCaps = DDSCAPS_PRIMARYSURFACE;
+
+ /* Create the primary surface */
+ ddrval = IDirectDraw2_CreateSurface (pScreenPriv->pdd2,
+ &ddsd,
+ &pScreenPriv->pddsPrimary,
+ NULL);
+ if (FAILED (ddrval))
+ FatalError ("winAllocateFBPrimaryDD - Could not create primary "
+ "surface %08x\n", (unsigned int) ddrval);
+
+ ErrorF ("winAllocateFBPrimaryDD - Created primary\n");
+
+ /* Allocate a DD surface description for our screen privates */
+ pddsdPrimary = pScreenPriv->pddsdPrimary
+ = malloc (sizeof (DDSURFACEDESC));
+ if (pddsdPrimary == NULL)
+ FatalError ("winAllocateFBPrimaryDD - Could not allocate surface "
+ "description memory\n");
+ ZeroMemory (pddsdPrimary, sizeof (*pddsdPrimary));
+ pddsdPrimary->dwSize = sizeof (*pddsdPrimary);
+
+ /* Describe the offscreen surface to be created */
+ /*
+ * NOTE: Do not use a DDSCAPS_VIDEOMEMORY surface,
+ * as drawing, locking, and unlocking take forever
+ * with video memory surfaces. In addition,
+ * video memory is a somewhat scarce resource,
+ * so you shouldn't be allocating video memory when
+ * you have the option of using system memory instead.
+ */
+ ZeroMemory (&ddsd, sizeof (ddsd));
+ ddsd.dwSize = sizeof (ddsd);
+ ddsd.dwFlags = DDSD_CAPS | DDSD_HEIGHT | DDSD_WIDTH;
+ ddsd.ddsCaps.dwCaps = DDSCAPS_OFFSCREENPLAIN | DDSCAPS_SYSTEMMEMORY;
+ ddsd.dwHeight = pScreenInfo->dwHeight;
+ ddsd.dwWidth = pScreenInfo->dwWidth;
+
+ /* Create the shadow surface */
+ ddrval = IDirectDraw2_CreateSurface (pScreenPriv->pdd2,
+ &ddsd,
+ &pScreenPriv->pddsOffscreen,
+ NULL);
+ if (ddrval != DD_OK)
+ FatalError ("winAllocateFBPrimaryDD - Could not create shadow "
+ "surface\n");
+
+ ErrorF ("winAllocateFBPrimaryDD - Created offscreen\n");
+
+ /* Allocate a DD surface description for our screen privates */
+ pddsdOffscreen = pScreenPriv->pddsdOffscreen
+ = malloc (sizeof (DDSURFACEDESC));
+ if (pddsdOffscreen == NULL)
+ FatalError ("winAllocateFBPrimaryDD - Could not allocate surface "
+ "description memory\n");
+ ZeroMemory (pddsdOffscreen, sizeof (*pddsdOffscreen));
+ pddsdOffscreen->dwSize = sizeof (*pddsdOffscreen);
+
+ ErrorF ("winAllocateFBPrimaryDD - Locking primary\n");
+
+ /* Lock the primary surface */
+ ddrval = IDirectDrawSurface2_Lock (pScreenPriv->pddsPrimary,
+ pScreenInfo->fFullScreen ? NULL:&rcClient,
+ pddsdPrimary,
+ DDLOCK_WAIT,
+ NULL);
+ if (ddrval != DD_OK || pddsdPrimary->lpSurface == NULL)
+ FatalError ("winAllocateFBPrimaryDD - Could not lock "
+ "primary surface\n");
+
+ ErrorF ("winAllocateFBPrimaryDD - Locked primary\n");
+
+ /* We don't know how to deal with anything other than RGB */
+ if (!(pddsdPrimary->ddpfPixelFormat.dwFlags & DDPF_RGB))
+ FatalError ("winAllocateFBPrimaryDD - Color format other than RGB\n");
+
+ /* Grab the pitch from the surface desc */
+ pScreenInfo->dwStride = (pddsdPrimary->u1.lPitch * 8)
+ / pScreenInfo->dwBPP;
+
+ /* Save the pointer to our surface memory */
+ pScreenInfo->pfb = pddsdPrimary->lpSurface;
+
+ /* Grab the color depth and masks from the surface description */
+ pScreenPriv->dwRedMask = pddsdPrimary->ddpfPixelFormat.u2.dwRBitMask;
+ pScreenPriv->dwGreenMask = pddsdPrimary->ddpfPixelFormat.u3.dwGBitMask;
+ pScreenPriv->dwBlueMask = pddsdPrimary->ddpfPixelFormat.u4.dwBBitMask;
+
+ ErrorF ("winAllocateFBPrimaryDD - Returning\n");
+
+ return TRUE;
+}
+
+
+/*
+ * Call the wrapped CloseScreen function.
+ *
+ * Free our resources and private structures.
+ */
+
+static Bool
+winCloseScreenPrimaryDD (int nIndex, ScreenPtr pScreen)
+{
+ winScreenPriv(pScreen);
+ winScreenInfo *pScreenInfo = pScreenPriv->pScreenInfo;
+ Bool fReturn;
+
+ ErrorF ("winCloseScreenPrimaryDD - Freeing screen resources\n");
+
+ /* Flag that the screen is closed */
+ pScreenPriv->fClosed = TRUE;
+ pScreenPriv->fActive = FALSE;
+
+ /* Call the wrapped CloseScreen procedure */
+ WIN_UNWRAP(CloseScreen);
+ fReturn = (*pScreen->CloseScreen) (nIndex, pScreen);
+
+ /* Delete the window property */
+ RemoveProp (pScreenPriv->hwndScreen, WIN_SCR_PROP);
+
+ /* Free the offscreen surface, if there is one */
+ if (pScreenPriv->pddsOffscreen)
+ {
+ IDirectDrawSurface2_Unlock (pScreenPriv->pddsOffscreen, NULL);
+ IDirectDrawSurface2_Release (pScreenPriv->pddsOffscreen);
+ pScreenPriv->pddsOffscreen = NULL;
+ }
+
+ /* Release the primary surface, if there is one */
+ if (pScreenPriv->pddsPrimary)
+ {
+ IDirectDrawSurface2_Unlock (pScreenPriv->pddsPrimary, NULL);
+ IDirectDrawSurface2_Release (pScreenPriv->pddsPrimary);
+ pScreenPriv->pddsPrimary = NULL;
+ }
+
+ /* Free the DirectDraw object, if there is one */
+ if (pScreenPriv->pdd)
+ {
+ IDirectDraw2_RestoreDisplayMode (pScreenPriv->pdd);
+ IDirectDraw2_Release (pScreenPriv->pdd);
+ pScreenPriv->pdd = NULL;
+ }
+
+ /* Delete tray icon, if we have one */
+ if (!pScreenInfo->fNoTrayIcon)
+ winDeleteNotifyIcon (pScreenPriv);
+
+ /* Free the exit confirmation dialog box, if it exists */
+ if (g_hDlgExit != NULL)
+ {
+ DestroyWindow (g_hDlgExit);
+ g_hDlgExit = NULL;
+ }
+
+ /* Kill our window */
+ if (pScreenPriv->hwndScreen)
+ {
+ DestroyWindow (pScreenPriv->hwndScreen);
+ pScreenPriv->hwndScreen = NULL;
+ }
+
+ /* Kill our screeninfo's pointer to the screen */
+ pScreenInfo->pScreen = NULL;
+
+ /* Invalidate the ScreenInfo's fb pointer */
+ pScreenInfo->pfb = NULL;
+
+ /* Free the screen privates for this screen */
+ free ((pointer) pScreenPriv);
+
+ return fReturn;
+}
+
+
+/*
+ * Tell mi what sort of visuals we need.
+ *
+ * Generally we only need one visual, as our screen can only
+ * handle one format at a time, I believe. You may want
+ * to verify that last sentence.
+ */
+
+static Bool
+winInitVisualsPrimaryDD (ScreenPtr pScreen)
+{
+ winScreenPriv(pScreen);
+ winScreenInfo *pScreenInfo = pScreenPriv->pScreenInfo;
+ DWORD dwRedBits, dwGreenBits, dwBlueBits;
+
+ /* Count the number of ones in each color mask */
+ dwRedBits = winCountBits (pScreenPriv->dwRedMask);
+ dwGreenBits = winCountBits (pScreenPriv->dwGreenMask);
+ dwBlueBits = winCountBits (pScreenPriv->dwBlueMask);
+
+ /* Store the maximum number of ones in a color mask as the bitsPerRGB */
+ if (dwRedBits > dwGreenBits && dwRedBits > dwBlueBits)
+ pScreenPriv->dwBitsPerRGB = dwRedBits;
+ else if (dwGreenBits > dwRedBits && dwGreenBits > dwBlueBits)
+ pScreenPriv->dwBitsPerRGB = dwGreenBits;
+ else
+ pScreenPriv->dwBitsPerRGB = dwBlueBits;
+
+ ErrorF ("winInitVisualsPrimaryDD - Masks: %08x %08x %08x bpRGB: %d\n",
+ (unsigned int) pScreenPriv->dwRedMask,
+ (unsigned int) pScreenPriv->dwGreenMask,
+ (unsigned int) pScreenPriv->dwBlueMask,
+ (int) pScreenPriv->dwBitsPerRGB);
+
+ /* Create a single visual according to the Windows screen depth */
+ switch (pScreenInfo->dwDepth)
+ {
+ case 24:
+ case 16:
+ case 15:
+ if (!miSetVisualTypesAndMasks (pScreenInfo->dwDepth,
+ TrueColorMask,
+ pScreenPriv->dwBitsPerRGB,
+ TrueColor,
+ pScreenPriv->dwRedMask,
+ pScreenPriv->dwGreenMask,
+ pScreenPriv->dwBlueMask))
+ {
+ ErrorF ("winInitVisualsPrimaryDD - "
+ "miSetVisualTypesAndMasks failed\n");
+ return FALSE;
+ }
+ break;
+
+ case 8:
+#if CYGDEBUG
+ winDebug ("winInitVisuals - Calling miSetVisualTypesAndMasks\n");
+#endif /* CYGDEBUG */
+ if (!miSetVisualTypesAndMasks (pScreenInfo->dwDepth,
+ PseudoColorMask,
+ pScreenPriv->dwBitsPerRGB,
+ PseudoColor,
+ pScreenPriv->dwRedMask,
+ pScreenPriv->dwGreenMask,
+ pScreenPriv->dwBlueMask))
+ {
+ ErrorF ("winInitVisualsPrimaryDD - "
+ "miSetVisualTypesAndMasks failed\n");
+ return FALSE;
+ }
+#if CYGDEBUG
+ winDebug ("winInitVisualsPrimaryDD - Returned from "
+ "miSetVisualTypesAndMasks\n");
+#endif /* CYGDEBUG */
+ break;
+
+ default:
+ ErrorF ("winInitVisualsPrimaryDD - Unknown screen depth\n");
+ return FALSE;
+ }
+
+ ErrorF ("winInitVisualsPrimaryDD - Returning\n");
+
+ return TRUE;
+}
+
+
+static Bool
+winAdjustVideoModePrimaryDD (ScreenPtr pScreen)
+{
+ winScreenPriv(pScreen);
+ winScreenInfo *pScreenInfo = pScreenPriv->pScreenInfo;
+ HDC hdc = NULL;
+ DWORD dwBPP;
+
+ /* We're in serious trouble if we can't get a DC */
+ hdc = GetDC (NULL);
+ if (hdc == NULL)
+ {
+ ErrorF ("winAdjustVideoModePrimaryDD - GetDC failed\n");
+ return FALSE;
+ }
+
+ /* Query GDI for current display depth */
+ dwBPP = GetDeviceCaps (hdc, BITSPIXEL);
+
+ /* DirectDraw can only change the depth in fullscreen mode */
+ if (pScreenInfo->dwBPP == WIN_DEFAULT_BPP)
+ {
+ /* No -depth parameter passed, let the user know the depth being used */
+ ErrorF ("winAdjustVideoModePrimaryDD - Using Windows display "
+ "depth of %d bits per pixel\n", (int) dwBPP);
+
+ /* Use GDI's depth */
+ pScreenInfo->dwBPP = dwBPP;
+ }
+ else if (pScreenInfo->fFullScreen
+ && pScreenInfo->dwBPP != dwBPP)
+ {
+ /* FullScreen, and GDI depth differs from -depth parameter */
+ ErrorF ("winAdjustVideoModePrimaryDD - FullScreen, using command "
+ "line depth: %d\n", (int) pScreenInfo->dwBPP);
+ }
+ else if (dwBPP != pScreenInfo->dwBPP)
+ {
+ /* Windowed, and GDI depth differs from -depth parameter */
+ ErrorF ("winAdjustVideoModePrimaryDD - Windowed, command line "
+ "depth: %d, using depth: %d\n",
+ (int) pScreenInfo->dwBPP, (int) dwBPP);
+
+ /* We'll use GDI's depth */
+ pScreenInfo->dwBPP = dwBPP;
+ }
+
+ /* Release our DC */
+ ReleaseDC (NULL, hdc);
+
+ return TRUE;
+}
+
+
+/*
+ * We need to blit our offscreen fb to
+ * the screen when we are activated, and we need to point
+ * the fb code back to the primary surface memory.
+ */
+
+static Bool
+winActivateAppPrimaryDD (ScreenPtr pScreen)
+{
+ winScreenPriv(pScreen);
+ winScreenInfo *pScreenInfo = pScreenPriv->pScreenInfo;
+ RECT rcSrc, rcClient;
+ HRESULT ddrval = DD_OK;
+
+ /* Check for errors */
+ if (pScreenPriv == NULL
+ || pScreenPriv->pddsPrimary == NULL
+ || pScreenPriv->pddsOffscreen == NULL)
+ return FALSE;
+
+ /* Check for do-nothing */
+ if (!pScreenPriv->fActive)
+ return TRUE;
+
+ /* We are activating */
+ ddrval = IDirectDrawSurface2_IsLost (pScreenPriv->pddsOffscreen);
+ if (ddrval == DD_OK)
+ {
+ IDirectDrawSurface2_Unlock (pScreenPriv->pddsOffscreen,
+ NULL);
+ /*
+ * We don't check for an error from Unlock, because it
+ * doesn't matter if the Unlock failed.
+ */
+ }
+
+ /* Restore both surfaces, just cause I like it that way */
+ IDirectDrawSurface2_Restore (pScreenPriv->pddsOffscreen);
+ IDirectDrawSurface2_Restore (pScreenPriv->pddsPrimary);
+
+ /* Get client area in screen coords */
+ GetClientRect (pScreenPriv->hwndScreen, &rcClient);
+ MapWindowPoints (pScreenPriv->hwndScreen,
+ HWND_DESKTOP,
+ (LPPOINT)&rcClient, 2);
+
+ /* Setup a source rectangle */
+ rcSrc.left = 0;
+ rcSrc.top = 0;
+ rcSrc.right = pScreenInfo->dwWidth;
+ rcSrc.bottom = pScreenInfo->dwHeight;
+
+ ddrval = IDirectDrawSurface2_Blt (pScreenPriv->pddsPrimary,
+ &rcClient,
+ pScreenPriv->pddsOffscreen,
+ &rcSrc,
+ DDBLT_WAIT,
+ NULL);
+ if (ddrval != DD_OK)
+ FatalError ("winActivateAppPrimaryDD () - Failed blitting offscreen "
+ "surface to primary surface %08x\n", (unsigned int) ddrval);
+
+ /* Lock the primary surface */
+ ddrval = IDirectDrawSurface2_Lock (pScreenPriv->pddsPrimary,
+ &rcClient,
+ pScreenPriv->pddsdPrimary,
+ DDLOCK_WAIT,
+ NULL);
+ if (ddrval != DD_OK
+ || pScreenPriv->pddsdPrimary->lpSurface == NULL)
+ FatalError ("winActivateAppPrimaryDD () - Could not lock "
+ "primary surface\n");
+
+ /* Notify FB of the new memory pointer */
+ winUpdateFBPointer (pScreen,
+ pScreenPriv->pddsdPrimary->lpSurface);
+
+ /*
+ * Register the Alt-Tab combo as a hotkey so we can copy
+ * the primary framebuffer before the display mode changes
+ */
+ RegisterHotKey (pScreenPriv->hwndScreen, 1, MOD_ALT, 9);
+
+ return TRUE;
+}
+
+
+/*
+ * Handle the Alt+Tab hotkey.
+ *
+ * We need to save the primary fb to an offscreen fb when
+ * we get deactivated, and point the fb code at the offscreen
+ * fb for the duration of the deactivation.
+ */
+
+static Bool
+winHotKeyAltTabPrimaryDD (ScreenPtr pScreen)
+{
+ winScreenPriv(pScreen);
+ winScreenInfo *pScreenInfo = pScreenPriv->pScreenInfo;
+ RECT rcClient, rcSrc;
+ HRESULT ddrval = DD_OK;
+
+ ErrorF ("\nwinHotKeyAltTabPrimaryDD\n\n");
+
+ /* Alt+Tab was pressed, we will lose focus very soon */
+ pScreenPriv->fActive = FALSE;
+
+ /* Check for error conditions */
+ if (pScreenPriv->pddsPrimary == NULL
+ || pScreenPriv->pddsOffscreen == NULL)
+ return FALSE;
+
+ /* Get client area in screen coords */
+ GetClientRect (pScreenPriv->hwndScreen, &rcClient);
+ MapWindowPoints (pScreenPriv->hwndScreen,
+ HWND_DESKTOP,
+ (LPPOINT)&rcClient, 2);
+
+ /* Did we loose the primary surface? */
+ ddrval = IDirectDrawSurface2_IsLost (pScreenPriv->pddsPrimary);
+ if (ddrval == DD_OK)
+ {
+ ddrval = IDirectDrawSurface2_Unlock (pScreenPriv->pddsPrimary,
+ NULL);
+ if (FAILED (ddrval))
+ FatalError ("winHotKeyAltTabPrimaryDD - Failed unlocking primary "
+ "surface\n");
+ }
+
+ /* Setup a source rectangle */
+ rcSrc.left = 0;
+ rcSrc.top = 0;
+ rcSrc.right = pScreenInfo->dwWidth;
+ rcSrc.bottom = pScreenInfo->dwHeight;
+
+ /* Blit the primary surface to the offscreen surface */
+ ddrval = IDirectDrawSurface2_Blt (pScreenPriv->pddsOffscreen,
+ NULL, /* should be rcDest */
+ pScreenPriv->pddsPrimary,
+ NULL,
+ DDBLT_WAIT,
+ NULL);
+ if (ddrval == DDERR_SURFACELOST)
+ {
+ IDirectDrawSurface2_Restore (pScreenPriv->pddsOffscreen);
+ IDirectDrawSurface2_Restore (pScreenPriv->pddsPrimary);
+
+ /* Blit the primary surface to the offscreen surface */
+ ddrval = IDirectDrawSurface2_Blt (pScreenPriv->pddsOffscreen,
+ NULL,
+ pScreenPriv->pddsPrimary,
+ NULL,
+ DDBLT_WAIT,
+ NULL);
+ if (FAILED (ddrval))
+ FatalError ("winHotKeyAltTabPrimaryDD - Failed blitting primary "
+ "surface to offscreen surface: %08x\n",
+ (unsigned int) ddrval);
+ }
+ else
+ {
+ FatalError ("winHotKeyAltTabPrimaryDD - Unknown error from "
+ "Blt: %08dx\n", (unsigned int) ddrval);
+ }
+
+ /* Lock the offscreen surface */
+ ddrval = IDirectDrawSurface2_Lock (pScreenPriv->pddsOffscreen,
+ NULL,
+ pScreenPriv->pddsdOffscreen,
+ DDLOCK_WAIT,
+ NULL);
+ if (ddrval != DD_OK
+ || pScreenPriv->pddsdPrimary->lpSurface == NULL)
+ FatalError ("winHotKeyAltTabPrimaryDD - Could not lock "
+ "offscreen surface\n");
+
+ /* Notify FB of the new memory pointer */
+ winUpdateFBPointer (pScreen,
+ pScreenPriv->pddsdOffscreen->lpSurface);
+
+ /* Unregister our hotkey */
+ UnregisterHotKey (pScreenPriv->hwndScreen, 1);
+
+ return TRUE;
+}
+
+
+/* Set engine specific functions */
+Bool
+winSetEngineFunctionsPrimaryDD (ScreenPtr pScreen)
+{
+ winScreenPriv(pScreen);
+ winScreenInfo *pScreenInfo = pScreenPriv->pScreenInfo;
+
+ /* Set our pointers */
+ pScreenPriv->pwinAllocateFB = winAllocateFBPrimaryDD;
+ pScreenPriv->pwinShadowUpdate
+ = (winShadowUpdateProcPtr) (void (*)(void))NoopDDA;
+ pScreenPriv->pwinCloseScreen = winCloseScreenPrimaryDD;
+ pScreenPriv->pwinInitVisuals = winInitVisualsPrimaryDD;
+ pScreenPriv->pwinAdjustVideoMode = winAdjustVideoModePrimaryDD;
+ if (pScreenInfo->fFullScreen)
+ pScreenPriv->pwinCreateBoundingWindow = winCreateBoundingWindowFullScreen;
+ else
+ pScreenPriv->pwinCreateBoundingWindow = winCreateBoundingWindowWindowed;
+ pScreenPriv->pwinFinishScreenInit = winFinishScreenInitFB;
+ pScreenPriv->pwinBltExposedRegions
+ = (winBltExposedRegionsProcPtr) (void (*)(void))NoopDDA;
+ pScreenPriv->pwinActivateApp = winActivateAppPrimaryDD;
+ pScreenPriv->pwinHotKeyAltTab = winHotKeyAltTabPrimaryDD;
+#ifdef XWIN_MULTIWINDOW
+ pScreenPriv->pwinFinishCreateWindowsWindow =
+ (winFinishCreateWindowsWindowProcPtr) (void (*)(void))NoopDDA;
+#endif
+
+ return TRUE;
+}
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