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Diffstat (limited to 'hw/xwin/winshadddnl.c')
| -rw-r--r-- | hw/xwin/winshadddnl.c | 1288 |
1 files changed, 1288 insertions, 0 deletions
diff --git a/hw/xwin/winshadddnl.c b/hw/xwin/winshadddnl.c new file mode 100644 index 000000000..69396a79b --- /dev/null +++ b/hw/xwin/winshadddnl.c @@ -0,0 +1,1288 @@ +/* + *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 + */ +/* $XFree86: xc/programs/Xserver/hw/xwin/winshadddnl.c,v 1.24 2003/02/12 15:01:38 alanh Exp $ */ + +#include "win.h" + +/* + * 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) GUID_EXT 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_IDirectDraw4 +DEFINE_GUID( IID_IDirectDraw4, 0x9c59509a,0x39bd,0x11d1,0x8c,0x4a,0x00,0xc0,0x4f,0xd9,0x30,0xc5 ); +#endif /* IID_IDirectDraw4 */ + + +/* + * Create the primary surface and attach the clipper. + * Used for both the initial surface creation and during + * WM_DISPLAYCHANGE messages. + */ + +Bool +winCreatePrimarySurfaceShadowDDNL (ScreenPtr pScreen) +{ + winScreenPriv(pScreen); + HRESULT ddrval = DD_OK; + DDSURFACEDESC2 ddsd; + + ErrorF ("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); + if (FAILED (ddrval)) + { + ErrorF ("winCreatePrimarySurfaceShadowDDNL - Could not create primary " + "surface: %08x\n", + ddrval); + return FALSE; + } + +#if 1 + ErrorF ("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", + ddrval); + return FALSE; + } + +#if 1 + ErrorF ("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. + */ + +Bool +winReleasePrimarySurfaceShadowDDNL (ScreenPtr pScreen) +{ + winScreenPriv(pScreen); + + ErrorF ("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); + + ErrorF ("winReleasePrimarySurfaceShadowDDNL - Detached clipper\n"); + + /* Release the primary surface */ + IDirectDrawSurface4_Release (pScreenPriv->pddsPrimary4); + pScreenPriv->pddsPrimary4 = NULL; + } + + ErrorF ("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 + ErrorF ("winAllocateFBShadowDDNL - w %d h %d d %d\n", + pScreenInfo->dwWidth, pScreenInfo->dwHeight, pScreenInfo->dwDepth); +#endif + + /* 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", + ddrval); + return FALSE; + } + +#if CYGDEBUG + ErrorF ("winAllocateFBShadowDDNL - 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 ("winAllocateFBShadowDDNL - Clipper not attached " + "to window: %08x\n", + ddrval); + return FALSE; + } + +#if CYGDEBUG + ErrorF ("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", + ddrval); + return FALSE; + } + +#if CYGDEBUG + ErrorF ("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", + 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", + 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", + 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)) + { + ErrorF ("winAllocateFBShadowDDNL - Changing video mode\n"); + + /* Change the video mode to the mode requested */ + 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", + ddrval); + return FALSE; + } + } + else + { + ErrorF ("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", + 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", + ddrval); + return FALSE; + } + +#if CYGDEBUG + ErrorF ("winAllocateFBShadowDDNL - Primary masks: %08x %08x %08x " + "dwRGBBitCount: %d\n", + ddpfPrimary.u2.dwRBitMask, + ddpfPrimary.u3.dwGBitMask, + ddpfPrimary.u4.dwBBitMask, + 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; + + ErrorF ("winAllocateFBShadowDDNL - lPitch: %d\n", + 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", ddrval); + return FALSE; + } + +#if CYGDEBUG || YES + ErrorF ("winAllocateFBShadowDDNL - Created shadow pitch: %d\n", + ddsdShadow.u1.lPitch); +#endif + + /* Grab the pitch from the surface desc */ + pScreenInfo->dwStride = (ddsdShadow.u1.lPitch * 8) + / pScreenInfo->dwBPP; + +#if CYGDEBUG || YES + ErrorF ("winAllocateFBShadowDDNL - Created shadow stride: %d\n", + 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 + ErrorF ("winAllocateFBShadowDDNL - Returning\n"); +#endif + + return TRUE; +} + + +/* + * Transfer the damaged regions of the shadow framebuffer to the display. + */ + +void +winShadowUpdateDDNL (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); + + /* + * 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)) + { + ErrorF ("winShadowUpdateDDNL - IDirectDrawSurface4_Blt () " + "failed: %08x\n", + ddrval); + } + + /* 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; + +#if CYGDEBUG + ErrorF ("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); + } +} + + +/* + * Call the wrapped CloseScreen function. + * + * Free our resources and private structures. + */ + +Bool +winCloseScreenShadowDDNL (int nIndex, ScreenPtr pScreen) +{ + winScreenPriv(pScreen); + winScreenInfo *pScreenInfo = pScreenPriv->pScreenInfo; + Bool fReturn; + +#if CYGDEBUG + ErrorF ("winCloseScreenShadowDDNL - Freeing screen resources\n"); +#endif + + /* Flag that the screen is closed */ + pScreenPriv->fClosed = TRUE; + pScreenPriv->fActive = FALSE; + + /* Call the wrapped CloseScreen procedure */ + pScreen->CloseScreen = pScreenPriv->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->pddsShadow4) + { + IDirectDrawSurface4_Release (pScreenPriv->pddsShadow4); + free (pScreenInfo->pfb); + pScreenInfo->pfb = NULL; + pScreenPriv->pddsShadow4 = NULL; + } + + /* Detach the clipper from the primary surface and release the clipper. */ + if (pScreenPriv->pddcPrimary) + { + /* Detach the clipper */ + IDirectDrawSurface4_SetClipper (pScreenPriv->pddsPrimary4, + NULL); + + /* Release the clipper object */ + IDirectDrawClipper_Release (pScreenPriv->pddcPrimary); + pScreenPriv->pddcPrimary = NULL; + } + + /* Release the primary surface, if there is one */ + if (pScreenPriv->pddsPrimary4) + { + IDirectDrawSurface4_Release (pScreenPriv->pddsPrimary4); + pScreenPriv->pddsPrimary4 = 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; + } + + /* 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; + + /* 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. + */ + +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; + + ErrorF ("winInitVisualsShadowDDNL - Masks %08x %08x %08x BPRGB %d d %d " + "bpp %d\n", + pScreenPriv->dwRedMask, + pScreenPriv->dwGreenMask, + pScreenPriv->dwBlueMask, + pScreenPriv->dwBitsPerRGB, + pScreenInfo->dwDepth, + pScreenInfo->dwBPP); + + /* Create a single visual according to the Windows screen depth */ + switch (pScreenInfo->dwDepth) + { + case 24: + case 16: + case 15: +#if defined(XFree86Server) + /* 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; + } + +#if WIN_EMULATE_PSEUDO_SUPPORT + 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 +#else /* XFree86Server */ + /* Setup the real visual */ + if (!fbSetVisualTypesAndMasks (pScreenInfo->dwDepth, + TrueColorMask, + pScreenPriv->dwBitsPerRGB, + pScreenPriv->dwRedMask, + pScreenPriv->dwGreenMask, + pScreenPriv->dwBlueMask)) + { + ErrorF ("winInitVisualsShadowDDNL - fbSetVisualTypesAndMasks " + "failed for TrueColor\n"); + return FALSE; + } + +#if WIN_EMULATE_PSEUDO_SUPPORT + if (!pScreenInfo->fEmulatePseudo) + break; + + /* Setup a pseudocolor visual */ + if (!fbSetVisualTypesAndMasks (8, + PseudoColorMask, + 8, + 0, + 0, + 0)) + { + ErrorF ("winInitVisualsShadowDDNL - 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 ("winInitVisualsShadowDDNL - miSetVisualTypesAndMasks " + "failed\n"); + return FALSE; + } +#else /* XFree86Server */ + if (!fbSetVisualTypesAndMasks (pScreenInfo->dwDepth, + pScreenInfo->fFullScreen + ? PseudoColorMask : StaticColorMask, + pScreenPriv->dwBitsPerRGB, + pScreenPriv->dwRedMask, + pScreenPriv->dwGreenMask, + pScreenPriv->dwBlueMask)) + { + ErrorF ("winInitVisualsShadowDDNL - fbSetVisualTypesAndMasks " + "failed\n"); + return FALSE; + } +#endif /* XFree86Server */ + break; + + default: + ErrorF ("winInitVisualsShadowDDNL - Unknown screen depth\n"); + return FALSE; + } + +#if CYGDEBUG + ErrorF ("winInitVisualsShadowDDNL - Returning\n"); +#endif + + return TRUE; +} + + +/* + * Adjust the user proposed video mode + */ + +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->dwBPP == WIN_DEFAULT_BPP) + { + /* No -depth parameter passed, let the user know the depth being used */ + ErrorF ("winAdjustVideoModeShadowDDNL - Using Windows display " + "depth of %d bits per pixel\n", dwBPP); + + /* Use GDI's depth */ + pScreenInfo->dwBPP = dwBPP; + } + else if (pScreenInfo->fFullScreen + && pScreenInfo->dwBPP != dwBPP) + { + /* FullScreen, and GDI depth differs from -depth parameter */ + ErrorF ("winAdjustVideoModeShadowDDNL - FullScreen, using command " + "line bpp: %d\n", pScreenInfo->dwBPP); + } + else if (dwBPP != pScreenInfo->dwBPP) + { + /* Windowed, and GDI depth differs from -depth parameter */ + ErrorF ("winAdjustVideoModeShadowDDNL - Windowed, command line " + "bpp: %d, using bpp: %d\n", + pScreenInfo->dwBPP, 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 ("winAdjustVideoModeShadowDDNL - 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 + */ + +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; + + /* 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 */ + ErrorF ("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); + ErrorF ("winBltExposedRegionsShadowDDNL - " + "IDirectDrawSurface4_Restore returned: "); + if (ddrval == DD_OK) + continue; + 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", ddrval); + + /* Loop around to try the blit one more time */ + continue; + } + else if (FAILED (ddrval)) + { + fReturn = FALSE; + ErrorF ("winBltExposedRegionsShadowDDNL - IDirectDrawSurface4_Blt " + "failed, but surface not lost: %08x %d\n", ddrval, 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 appliation-activation processing + */ + +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. + */ + +Bool +winRedrawScreenShadowDDNL (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 = IDirectDrawSurface4_Blt (pScreenPriv->pddsPrimary4, + &rcDest, + pScreenPriv->pddsShadow4, + &rcSrc, + DDBLT_WAIT, + NULL); + if (FAILED (ddrval)) + { + ErrorF ("winRedrawScreenShadowDDNL - IDirectDrawSurface4_Blt () " + "failed: %08x\n", + ddrval); + } + + return TRUE; +} + + +/* + * Realize the currently installed colormap + */ + +Bool +winRealizeInstalledPaletteShadowDDNL (ScreenPtr pScreen) +{ + return TRUE; +} + + +/* + * Install the specified colormap + */ + +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 + */ + +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\n"); + 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 + */ + +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 + */ + +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 + ErrorF ("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->pwinShadowUpdate = winShadowUpdateDDNL; + 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->pwinHotKeyAltTab = (winHotKeyAltTabProcPtr) (void (*)())NoopDDA; + pScreenPriv->pwinCreatePrimarySurface = winCreatePrimarySurfaceShadowDDNL; + pScreenPriv->pwinReleasePrimarySurface = winReleasePrimarySurfaceShadowDDNL; + + return TRUE; +} + + |