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xenocara/xserver/hw/xwin/winshaddd.c
matthieu 889b860699 Importing xserver from X.Org 7.2RC2
2006-11-26 18:13:41 +00:00

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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 HWND g_hDlgExit;
/*
* FIXME: Headers are broken, DEFINE_GUID doesn't work correctly,
* so we have to redefine it here.
*/
#ifdef DEFINE_GUID
#undef DEFINE_GUID
#define DEFINE_GUID(n,l,w1,w2,b1,b2,b3,b4,b5,b6,b7,b8) const GUID n GUID_SECT = {l,w1,w2,{b1,b2,b3,b4,b5,b6,b7,b8}}
#endif /* DEFINE_GUID */
/*
* FIXME: Headers are broken, IID_IDirectDraw4 has to be defined
* here manually. Should be handled by ddraw.h
*/
#ifndef IID_IDirectDraw2
DEFINE_GUID( IID_IDirectDraw2,0xB3A6F3E0,0x2B43,0x11CF,0xA2,0xDE,0x00,0xAA,0x00,0xB9,0x33,0x56 );
#endif /* IID_IDirectDraw2 */
/*
* Local prototypes
*/
static Bool
winAllocateFBShadowDD (ScreenPtr pScreen);
static void
winShadowUpdateDD (ScreenPtr pScreen,
shadowBufPtr pBuf);
static Bool
winCloseScreenShadowDD (int nIndex, ScreenPtr pScreen);
static Bool
winInitVisualsShadowDD (ScreenPtr pScreen);
static Bool
winAdjustVideoModeShadowDD (ScreenPtr pScreen);
static Bool
winBltExposedRegionsShadowDD (ScreenPtr pScreen);
static Bool
winActivateAppShadowDD (ScreenPtr pScreen);
static Bool
winRedrawScreenShadowDD (ScreenPtr pScreen);
static Bool
winRealizeInstalledPaletteShadowDD (ScreenPtr pScreen);
static Bool
winInstallColormapShadowDD (ColormapPtr pColormap);
static Bool
winStoreColorsShadowDD (ColormapPtr pmap,
int ndef,
xColorItem *pdefs);
static Bool
winCreateColormapShadowDD (ColormapPtr pColormap);
static Bool
winDestroyColormapShadowDD (ColormapPtr pColormap);
static Bool
winCreatePrimarySurfaceShadowDD (ScreenPtr pScreen);
static Bool
winReleasePrimarySurfaceShadowDD (ScreenPtr pScreen);
/*
* Create the primary surface and attach the clipper.
* Used for both the initial surface creation and during
* WM_DISPLAYCHANGE messages.
*/
static Bool
winCreatePrimarySurfaceShadowDD (ScreenPtr pScreen)
{
winScreenPriv(pScreen);
HRESULT ddrval = DD_OK;
DDSURFACEDESC ddsd;
/* 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))
{
ErrorF ("winCreatePrimarySurfaceShadowDD - Could not create primary "
"surface: %08x\n", (unsigned int) ddrval);
return FALSE;
}
#if CYGDEBUG
winDebug ("winCreatePrimarySurfaceShadowDD - Created primary surface\n");
#endif
/*
* Attach a clipper to the primary surface that will clip our blits to our
* display window.
*/
ddrval = IDirectDrawSurface2_SetClipper (pScreenPriv->pddsPrimary,
pScreenPriv->pddcPrimary);
if (FAILED (ddrval))
{
ErrorF ("winCreatePrimarySurfaceShadowDD - Primary attach clipper "
"failed: %08x\n",
(unsigned int) ddrval);
return FALSE;
}
#if CYGDEBUG
winDebug ("winCreatePrimarySurfaceShadowDD - Attached clipper to "
"primary surface\n");
#endif
/* Everything was correct */
return TRUE;
}
/*
* Detach the clipper and release the primary surface.
* Called from WM_DISPLAYCHANGE.
*/
static Bool
winReleasePrimarySurfaceShadowDD (ScreenPtr pScreen)
{
winScreenPriv(pScreen);
ErrorF ("winReleasePrimarySurfaceShadowDD - Hello\n");
/* Release the primary surface and clipper, if they exist */
if (pScreenPriv->pddsPrimary)
{
/*
* Detach the clipper from the primary surface.
* NOTE: We do this explicity for clarity. The Clipper is not released.
*/
IDirectDrawSurface2_SetClipper (pScreenPriv->pddsPrimary,
NULL);
ErrorF ("winReleasePrimarySurfaceShadowDD - Detached clipper\n");
/* Release the primary surface */
IDirectDrawSurface2_Release (pScreenPriv->pddsPrimary);
pScreenPriv->pddsPrimary = NULL;
}
ErrorF ("winReleasePrimarySurfaceShadowDD - Released primary surface\n");
return TRUE;
}
/*
* Create a DirectDraw surface for the shadow framebuffer; also create
* a primary surface object so we can blit to the display.
*
* Install a DirectDraw clipper on our primary surface object
* that clips our blits to the unobscured client area of our display window.
*/
static Bool
winAllocateFBShadowDD (ScreenPtr pScreen)
{
winScreenPriv(pScreen);
winScreenInfo *pScreenInfo = pScreenPriv->pScreenInfo;
HRESULT ddrval = DD_OK;
DDSURFACEDESC ddsd;
DDSURFACEDESC *pddsdShadow = NULL;
#if CYGDEBUG
winDebug ("winAllocateFBShadowDD\n");
#endif
/* Create a clipper */
ddrval = (*g_fpDirectDrawCreateClipper) (0,
&pScreenPriv->pddcPrimary,
NULL);
if (FAILED (ddrval))
{
ErrorF ("winAllocateFBShadowDD - Could not create clipper: %08x\n",
(unsigned int) ddrval);
return FALSE;
}
#if CYGDEBUG
winDebug ("winAllocateFBShadowDD - Created a clipper\n");
#endif
/* Get a device context for the screen */
pScreenPriv->hdcScreen = GetDC (pScreenPriv->hwndScreen);
/* Attach the clipper to our display window */
ddrval = IDirectDrawClipper_SetHWnd (pScreenPriv->pddcPrimary,
0,
pScreenPriv->hwndScreen);
if (FAILED (ddrval))
{
ErrorF ("winAllocateFBShadowDD - Clipper not attached to "
"window: %08x\n",
(unsigned int) ddrval);
return FALSE;
}
#if CYGDEBUG
winDebug ("winAllocateFBShadowDD - Attached clipper to window\n");
#endif
/* Create a DirectDraw object, store the address at lpdd */
ddrval = (*g_fpDirectDrawCreate) (NULL, &pScreenPriv->pdd, NULL);
if (FAILED (ddrval))
{
ErrorF ("winAllocateFBShadowDD - Could not start DirectDraw: %08x\n",
(unsigned int) ddrval);
return FALSE;
}
#if CYGDEBUG
winDebug ("winAllocateFBShadowDD () - Created and initialized DD\n");
#endif
/* 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;
}
/* Are we full screen? */
if (pScreenInfo->fFullScreen)
{
DDSURFACEDESC ddsdCurrent;
DWORD dwRefreshRateCurrent = 0;
HDC hdc = NULL;
/* Set the cooperative level to full screen */
ddrval = IDirectDraw2_SetCooperativeLevel (pScreenPriv->pdd2,
pScreenPriv->hwndScreen,
DDSCL_EXCLUSIVE
| DDSCL_FULLSCREEN);
if (FAILED (ddrval))
{
ErrorF ("winAllocateFBShadowDD - Could not set "
"cooperative level: %08x\n",
(unsigned int) ddrval);
return FALSE;
}
/*
* We only need to get the current refresh rate for comparison
* if a refresh rate has been passed on the command line.
*/
if (pScreenInfo->dwRefreshRate != 0)
{
ZeroMemory (&ddsdCurrent, sizeof (ddsdCurrent));
ddsdCurrent.dwSize = sizeof (ddsdCurrent);
/* Get information about current display settings */
ddrval = IDirectDraw2_GetDisplayMode (pScreenPriv->pdd2,
&ddsdCurrent);
if (FAILED (ddrval))
{
ErrorF ("winAllocateFBShadowDD - Could not get current "
"refresh rate: %08x. Continuing.\n",
(unsigned int) ddrval);
dwRefreshRateCurrent = 0;
}
else
{
/* Grab the current refresh rate */
dwRefreshRateCurrent = ddsdCurrent.u2.dwRefreshRate;
}
}
/* Clean up the refresh rate */
if (dwRefreshRateCurrent == pScreenInfo->dwRefreshRate)
{
/*
* Refresh rate is non-specified or equal to current.
*/
pScreenInfo->dwRefreshRate = 0;
}
/* Grab a device context for the screen */
hdc = GetDC (NULL);
if (hdc == NULL)
{
ErrorF ("winAllocateFBShadowDD - GetDC () failed\n");
return FALSE;
}
/* Only change the video mode when different than current mode */
if (!pScreenInfo->fMultipleMonitors
&& (pScreenInfo->dwWidth != GetSystemMetrics (SM_CXSCREEN)
|| pScreenInfo->dwHeight != GetSystemMetrics (SM_CYSCREEN)
|| pScreenInfo->dwBPP != GetDeviceCaps (hdc, BITSPIXEL)
|| pScreenInfo->dwRefreshRate != 0))
{
ErrorF ("winAllocateFBShadowDD - Changing video mode\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))
{
ErrorF ("winAllocateFBShadowDD - Could not set "\
"full screen display mode: %08x\n",
(unsigned int) ddrval);
return FALSE;
}
}
else
{
ErrorF ("winAllocateFBShadowDD - Not changing video mode\n");
}
/* Release our DC */
ReleaseDC (NULL, hdc);
hdc = NULL;
}
else
{
/* Set the cooperative level for windowed mode */
ddrval = IDirectDraw2_SetCooperativeLevel (pScreenPriv->pdd2,
pScreenPriv->hwndScreen,
DDSCL_NORMAL);
if (FAILED (ddrval))
{
ErrorF ("winAllocateFBShadowDD - Could not set "\
"cooperative level: %08x\n",
(unsigned int) ddrval);
return FALSE;
}
}
/* Create the primary surface */
if (!winCreatePrimarySurfaceShadowDD (pScreen))
{
ErrorF ("winAllocateFBShadowDD - winCreatePrimarySurfaceShadowDD "
"failed\n");
return FALSE;
}
/* Describe the shadow 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->pddsShadow,
NULL);
if (FAILED (ddrval))
{
ErrorF ("winAllocateFBShadowDD - Could not create shadow "\
"surface: %08x\n", (unsigned int) ddrval);
return FALSE;
}
#if CYGDEBUG
winDebug ("winAllocateFBShadowDD - Created shadow\n");
#endif
/* Allocate a DD surface description for our screen privates */
pddsdShadow = pScreenPriv->pddsdShadow = malloc (sizeof (DDSURFACEDESC));
if (pddsdShadow == NULL)
{
ErrorF ("winAllocateFBShadowDD - Could not allocate surface "\
"description memory\n");
return FALSE;
}
ZeroMemory (pddsdShadow, sizeof (*pddsdShadow));
pddsdShadow->dwSize = sizeof (*pddsdShadow);
#if CYGDEBUG
winDebug ("winAllocateFBShadowDD - Locking shadow\n");
#endif
/* Lock the shadow surface */
ddrval = IDirectDrawSurface2_Lock (pScreenPriv->pddsShadow,
NULL,
pddsdShadow,
DDLOCK_WAIT,
NULL);
if (FAILED (ddrval) || pddsdShadow->lpSurface == NULL)
{
ErrorF ("winAllocateFBShadowDD - Could not lock shadow "\
"surface: %08x\n", (unsigned int) ddrval);
return FALSE;
}
#if CYGDEBUG
winDebug ("winAllocateFBShadowDD - Locked shadow\n");
#endif
/* We don't know how to deal with anything other than RGB */
if (!(pddsdShadow->ddpfPixelFormat.dwFlags & DDPF_RGB))
{
ErrorF ("winAllocateFBShadowDD - Color format other than RGB\n");
return FALSE;
}
/* Grab the pitch from the surface desc */
pScreenInfo->dwStride = (pddsdShadow->u1.lPitch * 8)
/ pScreenInfo->dwBPP;
/* Save the pointer to our surface memory */
pScreenInfo->pfb = pddsdShadow->lpSurface;
/* Grab the color depth and masks from the surface description */
pScreenPriv->dwRedMask = pddsdShadow->ddpfPixelFormat.u2.dwRBitMask;
pScreenPriv->dwGreenMask = pddsdShadow->ddpfPixelFormat.u3.dwGBitMask;
pScreenPriv->dwBlueMask = pddsdShadow->ddpfPixelFormat.u4.dwBBitMask;
#if CYGDEBUG
winDebug ("winAllocateFBShadowDD - Returning\n");
#endif
return TRUE;
}
/*
* Transfer the damaged regions of the shadow framebuffer to the display.
*/
static void
winShadowUpdateDD (ScreenPtr pScreen,
shadowBufPtr pBuf)
{
winScreenPriv(pScreen);
winScreenInfo *pScreenInfo = pScreenPriv->pScreenInfo;
RegionPtr damage = &pBuf->damage;
HRESULT ddrval = DD_OK;
RECT rcDest, rcSrc;
POINT ptOrigin;
DWORD dwBox = REGION_NUM_RECTS (damage);
BoxPtr pBox = REGION_RECTS (damage);
HRGN hrgnTemp = NULL, hrgnCombined = NULL;
/*
* Return immediately if the app is not active
* and we are fullscreen, or if we have a bad display depth
*/
if ((!pScreenPriv->fActive && pScreenInfo->fFullScreen)
|| pScreenPriv->fBadDepth) return;
/* Get the origin of the window in the screen coords */
ptOrigin.x = pScreenInfo->dwXOffset;
ptOrigin.y = pScreenInfo->dwYOffset;
MapWindowPoints (pScreenPriv->hwndScreen,
HWND_DESKTOP,
(LPPOINT)&ptOrigin, 1);
/* Unlock the shadow surface, so we can blit */
ddrval = IDirectDrawSurface2_Unlock (pScreenPriv->pddsShadow, NULL);
if (FAILED (ddrval))
{
ErrorF ("winShadowUpdateProcDD - Unlock failed\n");
return;
}
/*
* Handle small regions with multiple blits,
* handle large regions by creating a clipping region and
* doing a single blit constrained to that clipping region.
*/
if (pScreenInfo->dwClipUpdatesNBoxes == 0
|| dwBox < pScreenInfo->dwClipUpdatesNBoxes)
{
/* Loop through all boxes in the damaged region */
while (dwBox--)
{
/* Assign damage box to source rectangle */
rcSrc.left = pBox->x1;
rcSrc.top = pBox->y1;
rcSrc.right = pBox->x2;
rcSrc.bottom = pBox->y2;
/* Calculate destination rectange */
rcDest.left = ptOrigin.x + rcSrc.left;
rcDest.top = ptOrigin.y + rcSrc.top;
rcDest.right = ptOrigin.x + rcSrc.right;
rcDest.bottom = ptOrigin.y + rcSrc.bottom;
/* Blit the damaged areas */
ddrval = IDirectDrawSurface2_Blt (pScreenPriv->pddsPrimary,
&rcDest,
pScreenPriv->pddsShadow,
&rcSrc,
DDBLT_WAIT,
NULL);
/* Get a pointer to the next box */
++pBox;
}
}
else
{
BoxPtr pBoxExtents = REGION_EXTENTS (pScreen, damage);
/* Compute a GDI region from the damaged region */
hrgnCombined = CreateRectRgn (pBox->x1, pBox->y1, pBox->x2, pBox->y2);
dwBox--;
pBox++;
while (dwBox--)
{
hrgnTemp = CreateRectRgn (pBox->x1, pBox->y1, pBox->x2, pBox->y2);
CombineRgn (hrgnCombined, hrgnCombined, hrgnTemp, RGN_OR);
DeleteObject (hrgnTemp);
pBox++;
}
/* Install the GDI region as a clipping region */
SelectClipRgn (pScreenPriv->hdcScreen, hrgnCombined);
DeleteObject (hrgnCombined);
hrgnCombined = NULL;
/* Calculating a bounding box for the source is easy */
rcSrc.left = pBoxExtents->x1;
rcSrc.top = pBoxExtents->y1;
rcSrc.right = pBoxExtents->x2;
rcSrc.bottom = pBoxExtents->y2;
/* Calculating a bounding box for the destination is trickier */
rcDest.left = ptOrigin.x + rcSrc.left;
rcDest.top = ptOrigin.y + rcSrc.top;
rcDest.right = ptOrigin.x + rcSrc.right;
rcDest.bottom = ptOrigin.y + rcSrc.bottom;
/* Our Blt should be clipped to the invalidated region */
ddrval = IDirectDrawSurface2_Blt (pScreenPriv->pddsPrimary,
&rcDest,
pScreenPriv->pddsShadow,
&rcSrc,
DDBLT_WAIT,
NULL);
/* Reset the clip region */
SelectClipRgn (pScreenPriv->hdcScreen, NULL);
}
/* Relock the shadow surface */
ddrval = IDirectDrawSurface2_Lock (pScreenPriv->pddsShadow,
NULL,
pScreenPriv->pddsdShadow,
DDLOCK_WAIT,
NULL);
if (FAILED (ddrval))
{
ErrorF ("winShadowUpdateProcDD - Lock failed\n");
return;
}
/* Has our memory pointer changed? */
if (pScreenInfo->pfb != pScreenPriv->pddsdShadow->lpSurface)
{
ErrorF ("winShadowUpdateProcDD - Memory location of the shadow "
"surface has changed, trying to update the root window "
"pixmap header to point to the new address. If you get "
"this message and "PROJECT_NAME" freezes or crashes "
"after this message then send a problem report and your "
"/tmp/XWin.log file to cygwin-xfree@cygwin.com\n");
/* Location of shadow framebuffer has changed */
pScreenInfo->pfb = pScreenPriv->pddsdShadow->lpSurface;
/* Update the screen pixmap */
if (!(*pScreen->ModifyPixmapHeader)(pScreen->devPrivate,
pScreen->width,
pScreen->height,
pScreen->rootDepth,
BitsPerPixel (pScreen->rootDepth),
PixmapBytePad (pScreenInfo->dwStride,
pScreenInfo->dwBPP),
pScreenInfo->pfb))
{
ErrorF ("winShadowUpdateProcDD - Bits changed, could not "
"notify fb.\n");
return;
}
}
}
/*
* Call the wrapped CloseScreen function.
*
* Free our resources and private structures.
*/
static Bool
winCloseScreenShadowDD (int nIndex, ScreenPtr pScreen)
{
winScreenPriv(pScreen);
winScreenInfo *pScreenInfo = pScreenPriv->pScreenInfo;
Bool fReturn;
#if CYGDEBUG
winDebug ("winCloseScreenShadowDD - Freeing screen resources\n");
#endif
/* 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);
/* Free the screen DC */
ReleaseDC (pScreenPriv->hwndScreen, pScreenPriv->hdcScreen);
/* Delete the window property */
RemoveProp (pScreenPriv->hwndScreen, WIN_SCR_PROP);
/* Free the shadow surface, if there is one */
if (pScreenPriv->pddsShadow)
{
IDirectDrawSurface2_Unlock (pScreenPriv->pddsShadow, NULL);
IDirectDrawSurface2_Release (pScreenPriv->pddsShadow);
pScreenPriv->pddsShadow = NULL;
}
/* Detach the clipper from the primary surface and release the clipper. */
if (pScreenPriv->pddcPrimary)
{
/* Detach the clipper */
IDirectDrawSurface2_SetClipper (pScreenPriv->pddsPrimary,
NULL);
/* Release the clipper object */
IDirectDrawClipper_Release (pScreenPriv->pddcPrimary);
pScreenPriv->pddcPrimary = NULL;
}
/* Release the primary surface, if there is one */
if (pScreenPriv->pddsPrimary)
{
IDirectDrawSurface2_Release (pScreenPriv->pddsPrimary);
pScreenPriv->pddsPrimary = NULL;
}
/* Free the DirectDraw2 object, if there is one */
if (pScreenPriv->pdd2)
{
IDirectDraw2_RestoreDisplayMode (pScreenPriv->pdd2);
IDirectDraw2_Release (pScreenPriv->pdd2);
pScreenPriv->pdd2 = NULL;
}
/* Free the DirectDraw object, if there is one */
if (pScreenPriv->pdd)
{
IDirectDraw_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;
}
#if defined(XWIN_CLIPBOARD) || defined(XWIN_MULTIWINDOW)
/* Destroy the thread startup mutex */
pthread_mutex_destroy (&pScreenPriv->pmServerStarted);
#endif
/* 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
winInitVisualsShadowDD (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 == 0 || dwGreenBits == 0 || dwBlueBits == 0)
pScreenPriv->dwBitsPerRGB = 8;
else if (dwRedBits > dwGreenBits && dwRedBits > dwBlueBits)
pScreenPriv->dwBitsPerRGB = dwRedBits;
else if (dwGreenBits > dwRedBits && dwGreenBits > dwBlueBits)
pScreenPriv->dwBitsPerRGB = dwGreenBits;
else
pScreenPriv->dwBitsPerRGB = dwBlueBits;
ErrorF ("winInitVisualsShadowDD - Masks %08x %08x %08x BPRGB %d d %d "
"bpp %d\n",
(unsigned int) pScreenPriv->dwRedMask,
(unsigned int) pScreenPriv->dwGreenMask,
(unsigned int) pScreenPriv->dwBlueMask,
(int) pScreenPriv->dwBitsPerRGB,
(int) pScreenInfo->dwDepth,
(int) pScreenInfo->dwBPP);
/* Create a single visual according to the Windows screen depth */
switch (pScreenInfo->dwDepth)
{
case 24:
case 16:
case 15:
#if defined(XFree86Server)
/* Create the real visual */
if (!miSetVisualTypesAndMasks (pScreenInfo->dwDepth,
TrueColorMask,
pScreenPriv->dwBitsPerRGB,
TrueColor,
pScreenPriv->dwRedMask,
pScreenPriv->dwGreenMask,
pScreenPriv->dwBlueMask))
{
ErrorF ("winInitVisualsShadowDD - miSetVisualTypesAndMasks "
"failed for TrueColor\n");
return FALSE;
}
#ifdef XWIN_EMULATEPSEUDO
if (!pScreenInfo->fEmulatePseudo)
break;
/* Setup a pseudocolor visual */
if (!miSetVisualTypesAndMasks (8,
PseudoColorMask,
8,
-1,
0,
0,
0))
{
ErrorF ("winInitVisualsShadowDD - miSetVisualTypesAndMasks "
"failed for PseudoColor\n");
return FALSE;
}
#endif
#else /* XFree86Server */
/* Create the real visual */
if (!fbSetVisualTypesAndMasks (pScreenInfo->dwDepth,
TrueColorMask,
pScreenPriv->dwBitsPerRGB,
pScreenPriv->dwRedMask,
pScreenPriv->dwGreenMask,
pScreenPriv->dwBlueMask))
{
ErrorF ("winInitVisualsShadowDD - fbSetVisualTypesAndMasks "
"failed for TrueColor\n");
return FALSE;
}
#ifdef XWIN_EMULATEPSEUDO
if (!pScreenInfo->fEmulatePseudo)
break;
/* Setup a pseudocolor visual */
if (!fbSetVisualTypesAndMasks (8,
PseudoColorMask,
8,
0,
0,
0))
{
ErrorF ("winInitVisualsShadowDD - fbSetVisualTypesAndMasks "
"failed for PseudoColor\n");
return FALSE;
}
#endif
#endif /* XFree86Server */
break;
case 8:
#if defined(XFree86Server)
if (!miSetVisualTypesAndMasks (pScreenInfo->dwDepth,
pScreenInfo->fFullScreen
? PseudoColorMask : StaticColorMask,
pScreenPriv->dwBitsPerRGB,
pScreenInfo->fFullScreen
? PseudoColor : StaticColor,
pScreenPriv->dwRedMask,
pScreenPriv->dwGreenMask,
pScreenPriv->dwBlueMask))
{
ErrorF ("winInitVisualsShadowDD - miSetVisualTypesAndMasks "
"failed\n");
return FALSE;
}
#else /* XFree86Server */
if (!fbSetVisualTypesAndMasks (pScreenInfo->dwDepth,
pScreenInfo->fFullScreen
? PseudoColorMask : StaticColorMask,
pScreenPriv->dwBitsPerRGB,
pScreenPriv->dwRedMask,
pScreenPriv->dwGreenMask,
pScreenPriv->dwBlueMask))
{
ErrorF ("winInitVisualsShadowDD - fbSetVisualTypesAndMasks "
"failed\n");
return FALSE;
}
#endif /* XFree86Server */
break;
default:
ErrorF ("winInitVisualsShadowDD - Unknown screen depth\n");
return FALSE;
}
#if CYGDEBUG
winDebug ("winInitVisualsShadowDD - Returning\n");
#endif
return TRUE;
}
/*
* Adjust the user proposed video mode
*/
static Bool
winAdjustVideoModeShadowDD (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 ("winAdjustVideoModeShadowDD - 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 ("winAdjustVideoModeShadowDD - 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 ("winAdjustVideoModeShadowDD - FullScreen, using command line "
"bpp: %d\n", (int) pScreenInfo->dwBPP);
}
else if (dwBPP != pScreenInfo->dwBPP)
{
/* Windowed, and GDI depth differs from -depth parameter */
ErrorF ("winAdjustVideoModeShadowDD - Windowed, command line bpp: "
"%d, using bpp: %d\n", (int) pScreenInfo->dwBPP, (int) dwBPP);
/* We'll use GDI's depth */
pScreenInfo->dwBPP = dwBPP;
}
/* See if the shadow bitmap will be larger than the DIB size limit */
if (pScreenInfo->dwWidth * pScreenInfo->dwHeight * pScreenInfo->dwBPP
>= WIN_DIB_MAXIMUM_SIZE)
{
ErrorF ("winAdjustVideoModeShadowDD - Requested DirectDraw surface "
"will be larger than %d MB. The surface may fail to be "
"allocated on Windows 95, 98, or Me, due to a %d MB limit in "
"DIB size. This limit does not apply to Windows NT/2000, and "
"this message may be ignored on those platforms.\n",
WIN_DIB_MAXIMUM_SIZE_MB, WIN_DIB_MAXIMUM_SIZE_MB);
}
/* Release our DC */
ReleaseDC (NULL, hdc);
return TRUE;
}
/*
* Blt exposed regions to the screen
*/
static Bool
winBltExposedRegionsShadowDD (ScreenPtr pScreen)
{
winScreenPriv(pScreen);
winScreenInfo *pScreenInfo = pScreenPriv->pScreenInfo;
RECT rcSrc, rcDest;
POINT ptOrigin;
HDC hdcUpdate = NULL;
PAINTSTRUCT ps;
HRESULT ddrval = DD_OK;
Bool fReturn = TRUE;
Bool fLocked = TRUE;
int i;
/* BeginPaint gives us an hdc that clips to the invalidated region */
hdcUpdate = BeginPaint (pScreenPriv->hwndScreen, &ps);
if (hdcUpdate == NULL)
{
ErrorF ("winBltExposedRegionsShadowDD - BeginPaint () returned "
"a NULL device context handle. Aborting blit attempt.\n");
return FALSE;
}
/* Unlock the shadow surface, so we can blit */
ddrval = IDirectDrawSurface2_Unlock (pScreenPriv->pddsShadow, NULL);
if (FAILED (ddrval))
{
fReturn = FALSE;
goto winBltExposedRegionsShadowDD_Exit;
}
else
{
/* Flag that we have unlocked the shadow surface */
fLocked = FALSE;
}
/* Get the origin of the window in the screen coords */
ptOrigin.x = pScreenInfo->dwXOffset;
ptOrigin.y = pScreenInfo->dwYOffset;
MapWindowPoints (pScreenPriv->hwndScreen,
HWND_DESKTOP,
(LPPOINT)&ptOrigin, 1);
rcDest.left = ptOrigin.x;
rcDest.right = ptOrigin.x + pScreenInfo->dwWidth;
rcDest.top = ptOrigin.y;
rcDest.bottom = ptOrigin.y + pScreenInfo->dwHeight;
/* Source can be enter shadow surface, as Blt should clip */
rcSrc.left = 0;
rcSrc.top = 0;
rcSrc.right = pScreenInfo->dwWidth;
rcSrc.bottom = pScreenInfo->dwHeight;
/* Try to regain the primary surface and blit again if we've lost it */
for (i = 0; i <= WIN_REGAIN_SURFACE_RETRIES; ++i)
{
/* Our Blt should be clipped to the invalidated region */
ddrval = IDirectDrawSurface2_Blt (pScreenPriv->pddsPrimary,
&rcDest,
pScreenPriv->pddsShadow,
&rcSrc,
DDBLT_WAIT,
NULL);
if (ddrval == DDERR_SURFACELOST)
{
/* Surface was lost */
ErrorF ("winBltExposedRegionsShadowDD - IDirectDrawSurface2_Blt "
"reported that the primary surface was lost, "
"trying to restore, retry: %d\n", i + 1);
/* Try to restore the surface, once */
ddrval = IDirectDrawSurface2_Restore (pScreenPriv->pddsPrimary);
ErrorF ("winBltExposedRegionsShadowDD - "
"IDirectDrawSurface2_Restore returned: ");
if (ddrval == DD_OK)
ErrorF ("DD_OK\n");
else if (ddrval == DDERR_WRONGMODE)
ErrorF ("DDERR_WRONGMODE\n");
else if (ddrval == DDERR_INCOMPATIBLEPRIMARY)
ErrorF ("DDERR_INCOMPATIBLEPRIMARY\n");
else if (ddrval == DDERR_UNSUPPORTED)
ErrorF ("DDERR_UNSUPPORTED\n");
else if (ddrval == DDERR_INVALIDPARAMS)
ErrorF ("DDERR_INVALIDPARAMS\n");
else if (ddrval == DDERR_INVALIDOBJECT)
ErrorF ("DDERR_INVALIDOBJECT\n");
else
ErrorF ("unknown error: %08x\n", (unsigned int) ddrval);
/* Loop around to try the blit one more time */
continue;
}
else if (FAILED (ddrval))
{
fReturn = FALSE;
ErrorF ("winBltExposedRegionsShadowDD - IDirectDrawSurface2_Blt "
"failed, but surface not lost: %08x %d\n",
(unsigned int) ddrval, (int) ddrval);
goto winBltExposedRegionsShadowDD_Exit;
}
else
{
/* Success, stop looping */
break;
}
}
/* Relock the shadow surface */
ddrval = IDirectDrawSurface2_Lock (pScreenPriv->pddsShadow,
NULL,
pScreenPriv->pddsdShadow,
DDLOCK_WAIT,
NULL);
if (FAILED (ddrval))
{
fReturn = FALSE;
ErrorF ("winBltExposedRegionsShadowDD - IDirectDrawSurface2_Lock "
"failed\n");
goto winBltExposedRegionsShadowDD_Exit;
}
else
{
/* Indicate that we have relocked the shadow surface */
fLocked = TRUE;
}
/* Has our memory pointer changed? */
if (pScreenInfo->pfb != pScreenPriv->pddsdShadow->lpSurface)
winUpdateFBPointer (pScreen,
pScreenPriv->pddsdShadow->lpSurface);
winBltExposedRegionsShadowDD_Exit:
/* EndPaint frees the DC */
if (hdcUpdate != NULL)
EndPaint (pScreenPriv->hwndScreen, &ps);
/*
* Relock the surface if it is not locked. We don't care if locking fails,
* as it will cause the server to shutdown within a few more operations.
*/
if (!fLocked)
{
IDirectDrawSurface2_Lock (pScreenPriv->pddsShadow,
NULL,
pScreenPriv->pddsdShadow,
DDLOCK_WAIT,
NULL);
/* Has our memory pointer changed? */
if (pScreenInfo->pfb != pScreenPriv->pddsdShadow->lpSurface)
winUpdateFBPointer (pScreen,
pScreenPriv->pddsdShadow->lpSurface);
fLocked = TRUE;
}
return fReturn;
}
/*
* Do any engine-specific appliation-activation processing
*/
static Bool
winActivateAppShadowDD (ScreenPtr pScreen)
{
winScreenPriv(pScreen);
/*
* Do we have a surface?
* Are we active?
* Are we fullscreen?
*/
if (pScreenPriv != NULL
&& pScreenPriv->pddsPrimary != NULL
&& pScreenPriv->fActive)
{
/* Primary surface was lost, restore it */
IDirectDrawSurface2_Restore (pScreenPriv->pddsPrimary);
}
return TRUE;
}
/*
* Reblit the shadow framebuffer to the screen.
*/
static Bool
winRedrawScreenShadowDD (ScreenPtr pScreen)
{
winScreenPriv(pScreen);
winScreenInfo *pScreenInfo = pScreenPriv->pScreenInfo;
HRESULT ddrval = DD_OK;
RECT rcSrc, rcDest;
POINT ptOrigin;
/* Get the origin of the window in the screen coords */
ptOrigin.x = pScreenInfo->dwXOffset;
ptOrigin.y = pScreenInfo->dwYOffset;
MapWindowPoints (pScreenPriv->hwndScreen,
HWND_DESKTOP,
(LPPOINT)&ptOrigin, 1);
rcDest.left = ptOrigin.x;
rcDest.right = ptOrigin.x + pScreenInfo->dwWidth;
rcDest.top = ptOrigin.y;
rcDest.bottom = ptOrigin.y + pScreenInfo->dwHeight;
/* Source can be entire shadow surface, as Blt should clip for us */
rcSrc.left = 0;
rcSrc.top = 0;
rcSrc.right = pScreenInfo->dwWidth;
rcSrc.bottom = pScreenInfo->dwHeight;
/* Redraw the whole window, to take account for the new colors */
ddrval = IDirectDrawSurface2_Blt (pScreenPriv->pddsPrimary,
&rcDest,
pScreenPriv->pddsShadow,
&rcSrc,
DDBLT_WAIT,
NULL);
if (FAILED (ddrval))
{
ErrorF ("winRedrawScreenShadowDD - IDirectDrawSurface_Blt () "
"failed: %08x\n",
(unsigned int) ddrval);
}
return TRUE;
}
/*
* Realize the currently installed colormap
*/
static Bool
winRealizeInstalledPaletteShadowDD (ScreenPtr pScreen)
{
return TRUE;
}
/*
* Install the specified colormap
*/
static Bool
winInstallColormapShadowDD (ColormapPtr pColormap)
{
ScreenPtr pScreen = pColormap->pScreen;
winScreenPriv(pScreen);
winCmapPriv(pColormap);
HRESULT ddrval = DD_OK;
/* Install the DirectDraw palette on the primary surface */
ddrval = IDirectDrawSurface2_SetPalette (pScreenPriv->pddsPrimary,
pCmapPriv->lpDDPalette);
if (FAILED (ddrval))
{
ErrorF ("winInstallColormapShadowDD - Failed installing the "
"DirectDraw palette.\n");
return FALSE;
}
/* Save a pointer to the newly installed colormap */
pScreenPriv->pcmapInstalled = pColormap;
return TRUE;
}
/*
* Store the specified colors in the specified colormap
*/
static Bool
winStoreColorsShadowDD (ColormapPtr pColormap,
int ndef,
xColorItem *pdefs)
{
ScreenPtr pScreen = pColormap->pScreen;
winScreenPriv(pScreen);
winCmapPriv(pColormap);
ColormapPtr curpmap = pScreenPriv->pcmapInstalled;
HRESULT ddrval = DD_OK;
/* Put the X colormap entries into the Windows logical palette */
ddrval = IDirectDrawPalette_SetEntries (pCmapPriv->lpDDPalette,
0,
pdefs[0].pixel,
ndef,
pCmapPriv->peColors
+ pdefs[0].pixel);
if (FAILED (ddrval))
{
ErrorF ("winStoreColorsShadowDD - SetEntries () failed\n");
return FALSE;
}
/* Don't install the DirectDraw palette if the colormap is not installed */
if (pColormap != curpmap)
{
return TRUE;
}
if (!winInstallColormapShadowDD (pColormap))
{
ErrorF ("winStoreColorsShadowDD - Failed installing colormap\n");
return FALSE;
}
return TRUE;
}
/*
* Colormap initialization procedure
*/
static Bool
winCreateColormapShadowDD (ColormapPtr pColormap)
{
HRESULT ddrval = DD_OK;
ScreenPtr pScreen = pColormap->pScreen;
winScreenPriv(pScreen);
winCmapPriv(pColormap);
/* Create a DirectDraw palette */
ddrval = IDirectDraw2_CreatePalette (pScreenPriv->pdd,
DDPCAPS_8BIT | DDPCAPS_ALLOW256,
pCmapPriv->peColors,
&pCmapPriv->lpDDPalette,
NULL);
if (FAILED (ddrval))
{
ErrorF ("winCreateColormapShadowDD - CreatePalette failed\n");
return FALSE;
}
return TRUE;
}
/*
* Colormap destruction procedure
*/
static Bool
winDestroyColormapShadowDD (ColormapPtr pColormap)
{
winScreenPriv(pColormap->pScreen);
winCmapPriv(pColormap);
HRESULT ddrval = DD_OK;
/*
* Is colormap to be destroyed the default?
*
* Non-default colormaps should have had winUninstallColormap
* called on them before we get here. The default colormap
* will not have had winUninstallColormap called on it. Thus,
* we need to handle the default colormap in a special way.
*/
if (pColormap->flags & IsDefault)
{
#if CYGDEBUG
winDebug ("winDestroyColormapShadowDD - Destroying default "
"colormap\n");
#endif
/*
* FIXME: Walk the list of all screens, popping the default
* palette out of each screen device context.
*/
/* Pop the palette out of the primary surface */
ddrval = IDirectDrawSurface2_SetPalette (pScreenPriv->pddsPrimary,
NULL);
if (FAILED (ddrval))
{
ErrorF ("winDestroyColormapShadowDD - Failed freeing the "
"default colormap DirectDraw palette.\n");
return FALSE;
}
/* Clear our private installed colormap pointer */
pScreenPriv->pcmapInstalled = NULL;
}
/* Release the palette */
IDirectDrawPalette_Release (pCmapPriv->lpDDPalette);
/* Invalidate the colormap privates */
pCmapPriv->lpDDPalette = NULL;
return TRUE;
}
/*
* Set engine specific functions
*/
Bool
winSetEngineFunctionsShadowDD (ScreenPtr pScreen)
{
winScreenPriv(pScreen);
winScreenInfo *pScreenInfo = pScreenPriv->pScreenInfo;
/* Set our pointers */
pScreenPriv->pwinAllocateFB = winAllocateFBShadowDD;
pScreenPriv->pwinShadowUpdate = winShadowUpdateDD;
pScreenPriv->pwinCloseScreen = winCloseScreenShadowDD;
pScreenPriv->pwinInitVisuals = winInitVisualsShadowDD;
pScreenPriv->pwinAdjustVideoMode = winAdjustVideoModeShadowDD;
if (pScreenInfo->fFullScreen)
pScreenPriv->pwinCreateBoundingWindow = winCreateBoundingWindowFullScreen;
else
pScreenPriv->pwinCreateBoundingWindow = winCreateBoundingWindowWindowed;
pScreenPriv->pwinFinishScreenInit = winFinishScreenInitFB;
pScreenPriv->pwinBltExposedRegions = winBltExposedRegionsShadowDD;
pScreenPriv->pwinActivateApp = winActivateAppShadowDD;
pScreenPriv->pwinRedrawScreen = winRedrawScreenShadowDD;
pScreenPriv->pwinRealizeInstalledPalette
= winRealizeInstalledPaletteShadowDD;
pScreenPriv->pwinInstallColormap = winInstallColormapShadowDD;
pScreenPriv->pwinStoreColors = winStoreColorsShadowDD;
pScreenPriv->pwinCreateColormap = winCreateColormapShadowDD;
pScreenPriv->pwinDestroyColormap = winDestroyColormapShadowDD;
pScreenPriv->pwinHotKeyAltTab = (winHotKeyAltTabProcPtr) (void (*)(void))NoopDDA;
pScreenPriv->pwinCreatePrimarySurface = winCreatePrimarySurfaceShadowDD;
pScreenPriv->pwinReleasePrimarySurface = winReleasePrimarySurfaceShadowDD;
#ifdef XWIN_MULTIWINDOW
pScreenPriv->pwinFinishCreateWindowsWindow =
(winFinishCreateWindowsWindowProcPtr) (void (*)(void))NoopDDA;
#endif
return TRUE;
}
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