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xserver-multidpi/hw/xwin/winshadddnl.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"
#define FAIL_MSG_MAX_BLT 10
/*
* Local prototypes
*/
static Bool
winAllocateFBShadowDDNL(ScreenPtr pScreen);
static void
winShadowUpdateDDNL(ScreenPtr pScreen, shadowBufPtr pBuf);
static Bool
winCloseScreenShadowDDNL(ScreenPtr pScreen);
static Bool
winInitVisualsShadowDDNL(ScreenPtr pScreen);
static Bool
winAdjustVideoModeShadowDDNL(ScreenPtr pScreen);
static Bool
winBltExposedRegionsShadowDDNL(ScreenPtr pScreen);
static Bool
winActivateAppShadowDDNL(ScreenPtr pScreen);
static Bool
winRedrawScreenShadowDDNL(ScreenPtr pScreen);
static Bool
winRealizeInstalledPaletteShadowDDNL(ScreenPtr pScreen);
static Bool
winInstallColormapShadowDDNL(ColormapPtr pColormap);
static Bool
winStoreColorsShadowDDNL(ColormapPtr pmap, int ndef, xColorItem * pdefs);
static Bool
winCreateColormapShadowDDNL(ColormapPtr pColormap);
static Bool
winDestroyColormapShadowDDNL(ColormapPtr pColormap);
static Bool
winCreatePrimarySurfaceShadowDDNL(ScreenPtr pScreen);
static Bool
winReleasePrimarySurfaceShadowDDNL(ScreenPtr pScreen);
/*
* Create the primary surface and attach the clipper.
* Used for both the initial surface creation and during
* WM_DISPLAYCHANGE messages.
*/
static Bool
winCreatePrimarySurfaceShadowDDNL(ScreenPtr pScreen)
{
winScreenPriv(pScreen);
HRESULT ddrval = DD_OK;
DDSURFACEDESC2 ddsd;
winDebug("winCreatePrimarySurfaceShadowDDNL - Creating primary surface\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 = IDirectDraw4_CreateSurface(pScreenPriv->pdd4,
&ddsd,
&pScreenPriv->pddsPrimary4, NULL);
pScreenPriv->fRetryCreateSurface = FALSE;
if (FAILED(ddrval)) {
if (ddrval == DDERR_NOEXCLUSIVEMODE) {
/* Recreating the surface failed. Mark screen to retry later */
pScreenPriv->fRetryCreateSurface = TRUE;
winDebug("winCreatePrimarySurfaceShadowDDNL - Could not create "
"primary surface: DDERR_NOEXCLUSIVEMODE\n");
}
else {
ErrorF("winCreatePrimarySurfaceShadowDDNL - Could not create "
"primary surface: %08x\n", (unsigned int) ddrval);
}
return FALSE;
}
#if 1
winDebug("winCreatePrimarySurfaceShadowDDNL - Created primary surface\n");
#endif
/* Attach our clipper to our primary surface handle */
ddrval = IDirectDrawSurface4_SetClipper(pScreenPriv->pddsPrimary4,
pScreenPriv->pddcPrimary);
if (FAILED(ddrval)) {
ErrorF("winCreatePrimarySurfaceShadowDDNL - Primary attach clipper "
"failed: %08x\n", (unsigned int) ddrval);
return FALSE;
}
#if 1
winDebug("winCreatePrimarySurfaceShadowDDNL - 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
winReleasePrimarySurfaceShadowDDNL(ScreenPtr pScreen)
{
winScreenPriv(pScreen);
winDebug("winReleasePrimarySurfaceShadowDDNL - Hello\n");
/* Release the primary surface and clipper, if they exist */
if (pScreenPriv->pddsPrimary4) {
/*
* Detach the clipper from the primary surface.
* NOTE: We do this explicity for clarity. The Clipper is not released.
*/
IDirectDrawSurface4_SetClipper(pScreenPriv->pddsPrimary4, NULL);
winDebug("winReleasePrimarySurfaceShadowDDNL - Detached clipper\n");
/* Release the primary surface */
IDirectDrawSurface4_Release(pScreenPriv->pddsPrimary4);
pScreenPriv->pddsPrimary4 = NULL;
}
winDebug("winReleasePrimarySurfaceShadowDDNL - 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.
*/
Bool
winAllocateFBShadowDDNL(ScreenPtr pScreen)
{
winScreenPriv(pScreen);
winScreenInfo *pScreenInfo = pScreenPriv->pScreenInfo;
HRESULT ddrval = DD_OK;
DDSURFACEDESC2 ddsdShadow;
char *lpSurface = NULL;
DDPIXELFORMAT ddpfPrimary;
#if CYGDEBUG
winDebug("winAllocateFBShadowDDNL - w %u h %u d %u\n",
(unsigned int)pScreenInfo->dwWidth,
(unsigned int)pScreenInfo->dwHeight,
(unsigned int)pScreenInfo->dwDepth);
#endif
/* Set the padded screen width */
pScreenInfo->dwPaddedWidth = PixmapBytePad(pScreenInfo->dwWidth,
pScreenInfo->dwBPP);
/* Allocate memory for our shadow surface */
lpSurface = malloc(pScreenInfo->dwPaddedWidth * pScreenInfo->dwHeight);
if (lpSurface == NULL) {
ErrorF("winAllocateFBShadowDDNL - Could not allocate bits\n");
return FALSE;
}
/*
* Initialize the framebuffer memory so we don't get a
* strange display at startup
*/
ZeroMemory(lpSurface, pScreenInfo->dwPaddedWidth * pScreenInfo->dwHeight);
/* Create a clipper */
ddrval = (*g_fpDirectDrawCreateClipper) (0,
&pScreenPriv->pddcPrimary, NULL);
if (FAILED(ddrval)) {
ErrorF("winAllocateFBShadowDDNL - Could not attach clipper: %08x\n",
(unsigned int) ddrval);
return FALSE;
}
#if CYGDEBUG
winDebug("winAllocateFBShadowDDNL - Created a clipper\n");
#endif
/* Attach the clipper to our display window */
ddrval = IDirectDrawClipper_SetHWnd(pScreenPriv->pddcPrimary,
0, pScreenPriv->hwndScreen);
if (FAILED(ddrval)) {
ErrorF("winAllocateFBShadowDDNL - Clipper not attached "
"to window: %08x\n", (unsigned int) ddrval);
return FALSE;
}
#if CYGDEBUG
winDebug("winAllocateFBShadowDDNL - Attached clipper to window\n");
#endif
/* Create a DirectDraw object, store the address at lpdd */
ddrval = (*g_fpDirectDrawCreate) (NULL,
(LPDIRECTDRAW *) &pScreenPriv->pdd,
NULL);
if (FAILED(ddrval)) {
ErrorF("winAllocateFBShadowDDNL - Could not start "
"DirectDraw: %08x\n", (unsigned int) ddrval);
return FALSE;
}
#if CYGDEBUG
winDebug("winAllocateFBShadowDDNL - Created and initialized DD\n");
#endif
/* Get a DirectDraw4 interface pointer */
ddrval = IDirectDraw_QueryInterface(pScreenPriv->pdd,
&IID_IDirectDraw4,
(LPVOID *) &pScreenPriv->pdd4);
if (FAILED(ddrval)) {
ErrorF("winAllocateFBShadowDDNL - Failed DD4 query: %08x\n",
(unsigned int) ddrval);
return FALSE;
}
/* Are we full screen? */
if (pScreenInfo->fFullScreen) {
DDSURFACEDESC2 ddsdCurrent;
DWORD dwRefreshRateCurrent = 0;
HDC hdc = NULL;
/* Set the cooperative level to full screen */
ddrval = IDirectDraw4_SetCooperativeLevel(pScreenPriv->pdd4,
pScreenPriv->hwndScreen,
DDSCL_EXCLUSIVE
| DDSCL_FULLSCREEN);
if (FAILED(ddrval)) {
ErrorF("winAllocateFBShadowDDNL - 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 = IDirectDraw4_GetDisplayMode(pScreenPriv->pdd4,
&ddsdCurrent);
if (FAILED(ddrval)) {
ErrorF("winAllocateFBShadowDDNL - 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("winAllocateFBShadowDDNL - 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)) {
winDebug("winAllocateFBShadowDDNL - Changing video mode\n");
/* Change the video mode to the mode requested, and use the driver default refresh rate on failure */
ddrval = IDirectDraw4_SetDisplayMode(pScreenPriv->pdd4,
pScreenInfo->dwWidth,
pScreenInfo->dwHeight,
pScreenInfo->dwBPP,
pScreenInfo->dwRefreshRate, 0);
if (FAILED(ddrval)) {
ErrorF("winAllocateFBShadowDDNL - Could not set "
"full screen display mode: %08x\n",
(unsigned int) ddrval);
ErrorF
("winAllocateFBShadowDDNL - Using default driver refresh rate\n");
ddrval =
IDirectDraw4_SetDisplayMode(pScreenPriv->pdd4,
pScreenInfo->dwWidth,
pScreenInfo->dwHeight,
pScreenInfo->dwBPP, 0, 0);
if (FAILED(ddrval)) {
ErrorF
("winAllocateFBShadowDDNL - Could not set default refresh rate "
"full screen display mode: %08x\n",
(unsigned int) ddrval);
return FALSE;
}
}
}
else {
winDebug("winAllocateFBShadowDDNL - Not changing video mode\n");
}
/* Release our DC */
ReleaseDC(NULL, hdc);
hdc = NULL;
}
else {
/* Set the cooperative level for windowed mode */
ddrval = IDirectDraw4_SetCooperativeLevel(pScreenPriv->pdd4,
pScreenPriv->hwndScreen,
DDSCL_NORMAL);
if (FAILED(ddrval)) {
ErrorF("winAllocateFBShadowDDNL - Could not set "
"cooperative level: %08x\n", (unsigned int) ddrval);
return FALSE;
}
}
/* Create the primary surface */
if (!winCreatePrimarySurfaceShadowDDNL(pScreen)) {
ErrorF("winAllocateFBShadowDDNL - winCreatePrimarySurfaceShadowDDNL "
"failed\n");
return FALSE;
}
/* Get primary surface's pixel format */
ZeroMemory(&ddpfPrimary, sizeof(ddpfPrimary));
ddpfPrimary.dwSize = sizeof(ddpfPrimary);
ddrval = IDirectDrawSurface4_GetPixelFormat(pScreenPriv->pddsPrimary4,
&ddpfPrimary);
if (FAILED(ddrval)) {
ErrorF("winAllocateFBShadowDDNL - Could not get primary "
"pixformat: %08x\n", (unsigned int) ddrval);
return FALSE;
}
#if CYGDEBUG
winDebug("winAllocateFBShadowDDNL - Primary masks: %08x %08x %08x "
"dwRGBBitCount: %u\n",
(unsigned int)ddpfPrimary.u2.dwRBitMask,
(unsigned int)ddpfPrimary.u3.dwGBitMask,
(unsigned int)ddpfPrimary.u4.dwBBitMask,
(unsigned int)ddpfPrimary.u1.dwRGBBitCount);
#endif
/* 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(&ddsdShadow, sizeof(ddsdShadow));
ddsdShadow.dwSize = sizeof(ddsdShadow);
ddsdShadow.dwFlags = DDSD_CAPS | DDSD_HEIGHT | DDSD_WIDTH
| DDSD_LPSURFACE | DDSD_PITCH | DDSD_PIXELFORMAT;
ddsdShadow.ddsCaps.dwCaps = DDSCAPS_OFFSCREENPLAIN | DDSCAPS_SYSTEMMEMORY;
ddsdShadow.dwHeight = pScreenInfo->dwHeight;
ddsdShadow.dwWidth = pScreenInfo->dwWidth;
ddsdShadow.u1.lPitch = pScreenInfo->dwPaddedWidth;
ddsdShadow.lpSurface = lpSurface;
ddsdShadow.u4.ddpfPixelFormat = ddpfPrimary;
winDebug("winAllocateFBShadowDDNL - lPitch: %d\n",
(int) pScreenInfo->dwPaddedWidth);
/* Create the shadow surface */
ddrval = IDirectDraw4_CreateSurface(pScreenPriv->pdd4,
&ddsdShadow,
&pScreenPriv->pddsShadow4, NULL);
if (FAILED(ddrval)) {
ErrorF("winAllocateFBShadowDDNL - Could not create shadow "
"surface: %08x\n", (unsigned int) ddrval);
return FALSE;
}
#if CYGDEBUG || YES
winDebug("winAllocateFBShadowDDNL - Created shadow pitch: %d\n",
(int) ddsdShadow.u1.lPitch);
#endif
/* Grab the pitch from the surface desc */
pScreenInfo->dwStride = (ddsdShadow.u1.lPitch * 8)
/ pScreenInfo->dwBPP;
#if CYGDEBUG || YES
winDebug("winAllocateFBShadowDDNL - Created shadow stride: %d\n",
(int) pScreenInfo->dwStride);
#endif
/* Save the pointer to our surface memory */
pScreenInfo->pfb = lpSurface;
/* Grab the masks from the surface description */
pScreenPriv->dwRedMask = ddsdShadow.u4.ddpfPixelFormat.u2.dwRBitMask;
pScreenPriv->dwGreenMask = ddsdShadow.u4.ddpfPixelFormat.u3.dwGBitMask;
pScreenPriv->dwBlueMask = ddsdShadow.u4.ddpfPixelFormat.u4.dwBBitMask;
#if CYGDEBUG
winDebug("winAllocateFBShadowDDNL - Returning\n");
#endif
return TRUE;
}
static void
winFreeFBShadowDDNL(ScreenPtr pScreen)
{
winScreenPriv(pScreen);
winScreenInfo *pScreenInfo = pScreenPriv->pScreenInfo;
/* Free the shadow surface, if there is one */
if (pScreenPriv->pddsShadow4) {
IDirectDrawSurface4_Release(pScreenPriv->pddsShadow4);
free(pScreenInfo->pfb);
pScreenInfo->pfb = NULL;
pScreenPriv->pddsShadow4 = NULL;
}
/* Detach the clipper from the primary surface and release the primary surface, if there is one */
winReleasePrimarySurfaceShadowDDNL(pScreen);
/* Release the clipper object */
if (pScreenPriv->pddcPrimary) {
IDirectDrawClipper_Release(pScreenPriv->pddcPrimary);
pScreenPriv->pddcPrimary = NULL;
}
/* Free the DirectDraw4 object, if there is one */
if (pScreenPriv->pdd4) {
IDirectDraw4_RestoreDisplayMode(pScreenPriv->pdd4);
IDirectDraw4_Release(pScreenPriv->pdd4);
pScreenPriv->pdd4 = NULL;
}
/* Free the DirectDraw object, if there is one */
if (pScreenPriv->pdd) {
IDirectDraw_Release(pScreenPriv->pdd);
pScreenPriv->pdd = NULL;
}
/* Invalidate the ScreenInfo's fb pointer */
pScreenInfo->pfb = NULL;
}
/*
* Transfer the damaged regions of the shadow framebuffer to the display.
*/
static void
winShadowUpdateDDNL(ScreenPtr pScreen, shadowBufPtr pBuf)
{
winScreenPriv(pScreen);
winScreenInfo *pScreenInfo = pScreenPriv->pScreenInfo;
RegionPtr damage = DamageRegion(pBuf->pDamage);
HRESULT ddrval = DD_OK;
RECT rcDest, rcSrc;
POINT ptOrigin;
DWORD dwBox = RegionNumRects(damage);
BoxPtr pBox = RegionRects(damage);
HRGN 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;
/* Return immediately if we didn't get needed surfaces */
if (!pScreenPriv->pddsPrimary4 || !pScreenPriv->pddsShadow4)
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);
/*
* 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 rectangle */
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 = IDirectDrawSurface4_Blt(pScreenPriv->pddsPrimary4,
&rcDest,
pScreenPriv->pddsShadow4,
&rcSrc, DDBLT_WAIT, NULL);
if (FAILED(ddrval)) {
static int s_iFailCount = 0;
if (s_iFailCount < FAIL_MSG_MAX_BLT) {
ErrorF("winShadowUpdateDDNL - IDirectDrawSurface4_Blt () "
"failed: %08x\n", (unsigned int) ddrval);
++s_iFailCount;
if (s_iFailCount == FAIL_MSG_MAX_BLT) {
ErrorF("winShadowUpdateDDNL - IDirectDrawSurface4_Blt "
"failure message maximum (%d) reached. No "
"more failure messages will be printed.\n",
FAIL_MSG_MAX_BLT);
}
}
}
/* Get a pointer to the next box */
++pBox;
}
}
else {
BoxPtr pBoxExtents = RegionExtents(damage);
/* Compute a GDI region from the damaged region */
hrgnCombined =
CreateRectRgn(pBoxExtents->x1, pBoxExtents->y1, pBoxExtents->x2,
pBoxExtents->y2);
/* Install the GDI region as a clipping region */
SelectClipRgn(pScreenPriv->hdcScreen, hrgnCombined);
DeleteObject(hrgnCombined);
hrgnCombined = NULL;
#if CYGDEBUG
winDebug("winShadowUpdateDDNL - be x1 %d y1 %d x2 %d y2 %d\n",
pBoxExtents->x1, pBoxExtents->y1,
pBoxExtents->x2, pBoxExtents->y2);
#endif
/* 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 = IDirectDrawSurface4_Blt(pScreenPriv->pddsPrimary4,
&rcDest,
pScreenPriv->pddsShadow4,
&rcSrc, DDBLT_WAIT, NULL);
/* Reset the clip region */
SelectClipRgn(pScreenPriv->hdcScreen, NULL);
}
}
static Bool
winInitScreenShadowDDNL(ScreenPtr pScreen)
{
winScreenPriv(pScreen);
/* Get a device context for the screen */
pScreenPriv->hdcScreen = GetDC(pScreenPriv->hwndScreen);
return winAllocateFBShadowDDNL(pScreen);
}
/*
* Call the wrapped CloseScreen function.
*
* Free our resources and private structures.
*/
static Bool
winCloseScreenShadowDDNL(ScreenPtr pScreen)
{
winScreenPriv(pScreen);
winScreenInfo *pScreenInfo = pScreenPriv->pScreenInfo;
Bool fReturn = TRUE;
#if CYGDEBUG
winDebug("winCloseScreenShadowDDNL - 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);
if (pScreen->CloseScreen)
fReturn = (*pScreen->CloseScreen) (pScreen);
winFreeFBShadowDDNL(pScreen);
/* Free the screen DC */
ReleaseDC(pScreenPriv->hwndScreen, pScreenPriv->hdcScreen);
/* Delete the window property */
RemoveProp(pScreenPriv->hwndScreen, WIN_SCR_PROP);
/* 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;
}
/* Destroy the thread startup mutex */
pthread_mutex_destroy(&pScreenPriv->pmServerStarted);
/* Kill our screeninfo's pointer to the screen */
pScreenInfo->pScreen = NULL;
/* Free the screen privates for this screen */
free((void *) 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
winInitVisualsShadowDDNL(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;
winDebug("winInitVisualsShadowDDNL - 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:
/* Setup the real visual */
if (!miSetVisualTypesAndMasks(pScreenInfo->dwDepth,
TrueColorMask,
pScreenPriv->dwBitsPerRGB,
-1,
pScreenPriv->dwRedMask,
pScreenPriv->dwGreenMask,
pScreenPriv->dwBlueMask)) {
ErrorF("winInitVisualsShadowDDNL - 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("winInitVisualsShadowDDNL - miSetVisualTypesAndMasks "
"failed for PseudoColor\n");
return FALSE;
}
#endif
break;
case 8:
if (!miSetVisualTypesAndMasks(pScreenInfo->dwDepth,
pScreenInfo->fFullScreen
? PseudoColorMask : StaticColorMask,
pScreenPriv->dwBitsPerRGB,
pScreenInfo->fFullScreen
? PseudoColor : StaticColor,
pScreenPriv->dwRedMask,
pScreenPriv->dwGreenMask,
pScreenPriv->dwBlueMask)) {
ErrorF("winInitVisualsShadowDDNL - miSetVisualTypesAndMasks "
"failed\n");
return FALSE;
}
break;
default:
ErrorF("winInitVisualsShadowDDNL - Unknown screen depth\n");
return FALSE;
}
#if CYGDEBUG
winDebug("winInitVisualsShadowDDNL - Returning\n");
#endif
return TRUE;
}
/*
* Adjust the user proposed video mode
*/
static Bool
winAdjustVideoModeShadowDDNL(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("winAdjustVideoModeShadowDDNL - 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->fFullScreen && (pScreenInfo->dwBPP != WIN_DEFAULT_BPP))) {
/* Otherwise, We'll use GDI's depth */
pScreenInfo->dwBPP = dwBPP;
}
/* Release our DC */
ReleaseDC(NULL, hdc);
return TRUE;
}
/*
* Blt exposed regions to the screen
*/
static Bool
winBltExposedRegionsShadowDDNL(ScreenPtr pScreen)
{
winScreenPriv(pScreen);
winScreenInfo *pScreenInfo = pScreenPriv->pScreenInfo;
RECT rcSrc, rcDest;
POINT ptOrigin;
HDC hdcUpdate;
PAINTSTRUCT ps;
HRESULT ddrval = DD_OK;
Bool fReturn = TRUE;
int i;
/* Quite common case. The primary surface was lost (maybe because of depth
* change). Try to create a new primary surface. Bail out if this fails */
if (pScreenPriv->pddsPrimary4 == NULL && pScreenPriv->fRetryCreateSurface &&
!winCreatePrimarySurfaceShadowDDNL(pScreen)) {
Sleep(100);
return FALSE;
}
if (pScreenPriv->pddsPrimary4 == NULL)
return FALSE;
/* BeginPaint gives us an hdc that clips to the invalidated region */
hdcUpdate = BeginPaint(pScreenPriv->hwndScreen, &ps);
if (hdcUpdate == NULL) {
fReturn = FALSE;
ErrorF("winBltExposedRegionsShadowDDNL - BeginPaint () returned "
"a NULL device context handle. Aborting blit attempt.\n");
goto winBltExposedRegionsShadowDDNL_Exit;
}
/* 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;
/* 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 = IDirectDrawSurface4_Blt(pScreenPriv->pddsPrimary4,
&rcDest,
pScreenPriv->pddsShadow4,
&rcSrc, DDBLT_WAIT, NULL);
if (ddrval == DDERR_SURFACELOST) {
/* Surface was lost */
winErrorFVerb(1, "winBltExposedRegionsShadowDDNL - "
"IDirectDrawSurface4_Blt reported that the primary "
"surface was lost, trying to restore, retry: %d\n",
i + 1);
/* Try to restore the surface, once */
ddrval = IDirectDrawSurface4_Restore(pScreenPriv->pddsPrimary4);
winDebug("winBltExposedRegionsShadowDDNL - "
"IDirectDrawSurface4_Restore returned: ");
if (ddrval == DD_OK)
winDebug("DD_OK\n");
else if (ddrval == DDERR_WRONGMODE)
winDebug("DDERR_WRONGMODE\n");
else if (ddrval == DDERR_INCOMPATIBLEPRIMARY)
winDebug("DDERR_INCOMPATIBLEPRIMARY\n");
else if (ddrval == DDERR_UNSUPPORTED)
winDebug("DDERR_UNSUPPORTED\n");
else if (ddrval == DDERR_INVALIDPARAMS)
winDebug("DDERR_INVALIDPARAMS\n");
else if (ddrval == DDERR_INVALIDOBJECT)
winDebug("DDERR_INVALIDOBJECT\n");
else
winDebug("unknown error: %08x\n", (unsigned int) ddrval);
/* Loop around to try the blit one more time */
continue;
}
else if (FAILED(ddrval)) {
fReturn = FALSE;
winErrorFVerb(1, "winBltExposedRegionsShadowDDNL - "
"IDirectDrawSurface4_Blt failed, but surface not "
"lost: %08x %d\n",
(unsigned int) ddrval, (int) ddrval);
goto winBltExposedRegionsShadowDDNL_Exit;
}
else {
/* Success, stop looping */
break;
}
}
winBltExposedRegionsShadowDDNL_Exit:
/* EndPaint frees the DC */
if (hdcUpdate != NULL)
EndPaint(pScreenPriv->hwndScreen, &ps);
return fReturn;
}
/*
* Do any engine-specific application-activation processing
*/
static Bool
winActivateAppShadowDDNL(ScreenPtr pScreen)
{
winScreenPriv(pScreen);
/*
* Do we have a surface?
* Are we active?
* Are we full screen?
*/
if (pScreenPriv != NULL
&& pScreenPriv->pddsPrimary4 != NULL && pScreenPriv->fActive) {
/* Primary surface was lost, restore it */
IDirectDrawSurface4_Restore(pScreenPriv->pddsPrimary4);
}
return TRUE;
}
/*
* Reblit the shadow framebuffer to the screen.
*/
static Bool
winRedrawScreenShadowDDNL(ScreenPtr pScreen)
{
winScreenPriv(pScreen);
winScreenInfo *pScreenInfo = pScreenPriv->pScreenInfo;
HRESULT ddrval = DD_OK;
RECT rcSrc, rcDest;
POINT ptOrigin;
/* Return immediately if we didn't get needed surfaces */
if (!pScreenPriv->pddsPrimary4 || !pScreenPriv->pddsShadow4)
return 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 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 = IDirectDrawSurface4_Blt(pScreenPriv->pddsPrimary4,
&rcDest,
pScreenPriv->pddsShadow4,
&rcSrc, DDBLT_WAIT, NULL);
if (FAILED(ddrval)) {
ErrorF("winRedrawScreenShadowDDNL - IDirectDrawSurface4_Blt () "
"failed: %08x\n", (unsigned int) ddrval);
}
return TRUE;
}
/*
* Realize the currently installed colormap
*/
static Bool
winRealizeInstalledPaletteShadowDDNL(ScreenPtr pScreen)
{
return TRUE;
}
/*
* Install the specified colormap
*/
static Bool
winInstallColormapShadowDDNL(ColormapPtr pColormap)
{
ScreenPtr pScreen = pColormap->pScreen;
winScreenPriv(pScreen);
winCmapPriv(pColormap);
HRESULT ddrval = DD_OK;
/* Install the DirectDraw palette on the primary surface */
ddrval = IDirectDrawSurface4_SetPalette(pScreenPriv->pddsPrimary4,
pCmapPriv->lpDDPalette);
if (FAILED(ddrval)) {
ErrorF("winInstallColormapShadowDDNL - 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
winStoreColorsShadowDDNL(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("winStoreColorsShadowDDNL - SetEntries () failed: %08x\n",
(unsigned int) ddrval);
return FALSE;
}
/* Don't install the DirectDraw palette if the colormap is not installed */
if (pColormap != curpmap) {
return TRUE;
}
if (!winInstallColormapShadowDDNL(pColormap)) {
ErrorF("winStoreColorsShadowDDNL - Failed installing colormap\n");
return FALSE;
}
return TRUE;
}
/*
* Colormap initialization procedure
*/
static Bool
winCreateColormapShadowDDNL(ColormapPtr pColormap)
{
HRESULT ddrval = DD_OK;
ScreenPtr pScreen = pColormap->pScreen;
winScreenPriv(pScreen);
winCmapPriv(pColormap);
/* Create a DirectDraw palette */
ddrval = IDirectDraw4_CreatePalette(pScreenPriv->pdd4,
DDPCAPS_8BIT | DDPCAPS_ALLOW256,
pCmapPriv->peColors,
&pCmapPriv->lpDDPalette, NULL);
if (FAILED(ddrval)) {
ErrorF("winCreateColormapShadowDDNL - CreatePalette failed\n");
return FALSE;
}
return TRUE;
}
/*
* Colormap destruction procedure
*/
static Bool
winDestroyColormapShadowDDNL(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
("winDestroyColormapShadowDDNL - 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 = IDirectDrawSurface4_SetPalette(pScreenPriv->pddsPrimary4,
NULL);
if (FAILED(ddrval)) {
ErrorF("winDestroyColormapShadowDDNL - 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 pointers to our engine specific functions
*/
Bool
winSetEngineFunctionsShadowDDNL(ScreenPtr pScreen)
{
winScreenPriv(pScreen);
winScreenInfo *pScreenInfo = pScreenPriv->pScreenInfo;
/* Set our pointers */
pScreenPriv->pwinAllocateFB = winAllocateFBShadowDDNL;
pScreenPriv->pwinFreeFB = winFreeFBShadowDDNL;
pScreenPriv->pwinShadowUpdate = winShadowUpdateDDNL;
pScreenPriv->pwinInitScreen = winInitScreenShadowDDNL;
pScreenPriv->pwinCloseScreen = winCloseScreenShadowDDNL;
pScreenPriv->pwinInitVisuals = winInitVisualsShadowDDNL;
pScreenPriv->pwinAdjustVideoMode = winAdjustVideoModeShadowDDNL;
if (pScreenInfo->fFullScreen)
pScreenPriv->pwinCreateBoundingWindow =
winCreateBoundingWindowFullScreen;
else
pScreenPriv->pwinCreateBoundingWindow = winCreateBoundingWindowWindowed;
pScreenPriv->pwinFinishScreenInit = winFinishScreenInitFB;
pScreenPriv->pwinBltExposedRegions = winBltExposedRegionsShadowDDNL;
pScreenPriv->pwinActivateApp = winActivateAppShadowDDNL;
pScreenPriv->pwinRedrawScreen = winRedrawScreenShadowDDNL;
pScreenPriv->pwinRealizeInstalledPalette
= winRealizeInstalledPaletteShadowDDNL;
pScreenPriv->pwinInstallColormap = winInstallColormapShadowDDNL;
pScreenPriv->pwinStoreColors = winStoreColorsShadowDDNL;
pScreenPriv->pwinCreateColormap = winCreateColormapShadowDDNL;
pScreenPriv->pwinDestroyColormap = winDestroyColormapShadowDDNL;
pScreenPriv->pwinCreatePrimarySurface = winCreatePrimarySurfaceShadowDDNL;
pScreenPriv->pwinReleasePrimarySurface = winReleasePrimarySurfaceShadowDDNL;
return TRUE;
}
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