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-rw-r--r--xorg-server/hw/xwin/winshadgdi.c2475
1 files changed, 1238 insertions, 1237 deletions
diff --git a/xorg-server/hw/xwin/winshadgdi.c b/xorg-server/hw/xwin/winshadgdi.c
index 7d53d4969..bcb2051fc 100644
--- a/xorg-server/hw/xwin/winshadgdi.c
+++ b/xorg-server/hw/xwin/winshadgdi.c
@@ -1,1237 +1,1238 @@
-/*
- *Copyright (C) 2001-2004 Harold L Hunt II 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 HAROLD L HUNT II 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 Harold L Hunt II
- *shall not be used in advertising or otherwise to promote the sale, use
- *or other dealings in this Software without prior written authorization
- *from Harold L Hunt II.
- *
- * Authors: Harold L Hunt II
- */
-
-#ifdef HAVE_XWIN_CONFIG_H
-#include <xwin-config.h>
-#endif
-#include "win.h"
-
-
-/*
- * Local function prototypes
- */
-
-#ifdef XWIN_MULTIWINDOW
-static wBOOL CALLBACK
-winRedrawAllProcShadowGDI (HWND hwnd, LPARAM lParam);
-
-static wBOOL CALLBACK
-winRedrawDamagedWindowShadowGDI (HWND hwnd, LPARAM lParam);
-#endif
-
-static Bool
-winAllocateFBShadowGDI (ScreenPtr pScreen);
-
-static void
-winShadowUpdateGDI (ScreenPtr pScreen,
- shadowBufPtr pBuf);
-
-static Bool
-winCloseScreenShadowGDI (int nIndex, ScreenPtr pScreen);
-
-static Bool
-winInitVisualsShadowGDI (ScreenPtr pScreen);
-
-static Bool
-winAdjustVideoModeShadowGDI (ScreenPtr pScreen);
-
-static Bool
-winBltExposedRegionsShadowGDI (ScreenPtr pScreen);
-
-static Bool
-winActivateAppShadowGDI (ScreenPtr pScreen);
-
-static Bool
-winRedrawScreenShadowGDI (ScreenPtr pScreen);
-
-static Bool
-winRealizeInstalledPaletteShadowGDI (ScreenPtr pScreen);
-
-static Bool
-winInstallColormapShadowGDI (ColormapPtr pColormap);
-
-static Bool
-winStoreColorsShadowGDI (ColormapPtr pmap,
- int ndef,
- xColorItem *pdefs);
-
-static Bool
-winCreateColormapShadowGDI (ColormapPtr pColormap);
-
-static Bool
-winDestroyColormapShadowGDI (ColormapPtr pColormap);
-
-
-/*
- * Internal function to get the DIB format that is compatible with the screen
- */
-
-static
-Bool
-winQueryScreenDIBFormat (ScreenPtr pScreen, BITMAPINFOHEADER *pbmih)
-{
- winScreenPriv(pScreen);
- HBITMAP hbmp;
-#ifdef WINDBG
- LPDWORD pdw = NULL;
-#endif
-
- /* Create a memory bitmap compatible with the screen */
- hbmp = CreateCompatibleBitmap (pScreenPriv->hdcScreen, 1, 1);
- if (hbmp == NULL)
- {
- ErrorF ("winQueryScreenDIBFormat - CreateCompatibleBitmap failed\n");
- return FALSE;
- }
-
- /* Initialize our bitmap info header */
- ZeroMemory (pbmih, sizeof (BITMAPINFOHEADER) + 256 * sizeof (RGBQUAD));
- pbmih->biSize = sizeof (BITMAPINFOHEADER);
-
- /* Get the biBitCount */
- if (!GetDIBits (pScreenPriv->hdcScreen,
- hbmp,
- 0, 1,
- NULL,
- (BITMAPINFO*) pbmih,
- DIB_RGB_COLORS))
- {
- ErrorF ("winQueryScreenDIBFormat - First call to GetDIBits failed\n");
- DeleteObject (hbmp);
- return FALSE;
- }
-
-#ifdef WINDBG
- /* Get a pointer to bitfields */
- pdw = (DWORD*) ((CARD8*)pbmih + sizeof (BITMAPINFOHEADER));
-
- winDebug ("winQueryScreenDIBFormat - First call masks: %08x %08x %08x\n",
- pdw[0], pdw[1], pdw[2]);
-#endif
-
- /* Get optimal color table, or the optimal bitfields */
- if (!GetDIBits (pScreenPriv->hdcScreen,
- hbmp,
- 0, 1,
- NULL,
- (BITMAPINFO*)pbmih,
- DIB_RGB_COLORS))
- {
- ErrorF ("winQueryScreenDIBFormat - Second call to GetDIBits "
- "failed\n");
- DeleteObject (hbmp);
- return FALSE;
- }
-
- /* Free memory */
- DeleteObject (hbmp);
-
- return TRUE;
-}
-
-
-/*
- * Internal function to determine the GDI bits per rgb and bit masks
- */
-
-static
-Bool
-winQueryRGBBitsAndMasks (ScreenPtr pScreen)
-{
- winScreenPriv(pScreen);
- BITMAPINFOHEADER *pbmih = NULL;
- Bool fReturn = TRUE;
- LPDWORD pdw = NULL;
- DWORD dwRedBits, dwGreenBits, dwBlueBits;
-
- /* Color masks for 8 bpp are standardized */
- if (GetDeviceCaps (pScreenPriv->hdcScreen, RASTERCAPS) & RC_PALETTE)
- {
- /*
- * RGB BPP for 8 bit palletes is always 8
- * and the color masks are always 0.
- */
- pScreenPriv->dwBitsPerRGB = 8;
- pScreenPriv->dwRedMask = 0x0L;
- pScreenPriv->dwGreenMask = 0x0L;
- pScreenPriv->dwBlueMask = 0x0L;
- return TRUE;
- }
-
- /* Color masks for 24 bpp are standardized */
- if (GetDeviceCaps (pScreenPriv->hdcScreen, PLANES)
- * GetDeviceCaps (pScreenPriv->hdcScreen, BITSPIXEL) == 24)
- {
- winDebug ("winQueryRGBBitsAndMasks - GetDeviceCaps (BITSPIXEL) "
- "returned 24 for the screen. Using default 24bpp masks.\n");
-
- /* 8 bits per primary color */
- pScreenPriv->dwBitsPerRGB = 8;
-
- /* Set screen privates masks */
- pScreenPriv->dwRedMask = WIN_24BPP_MASK_RED;
- pScreenPriv->dwGreenMask = WIN_24BPP_MASK_GREEN;
- pScreenPriv->dwBlueMask = WIN_24BPP_MASK_BLUE;
-
- return TRUE;
- }
-
- /* Allocate a bitmap header and color table */
- pbmih = (BITMAPINFOHEADER*) malloc (sizeof (BITMAPINFOHEADER)
- + 256 * sizeof (RGBQUAD));
- if (pbmih == NULL)
- {
- ErrorF ("winQueryRGBBitsAndMasks - malloc failed\n");
- return FALSE;
- }
-
- /* Get screen description */
- if (winQueryScreenDIBFormat (pScreen, pbmih))
- {
- /* Get a pointer to bitfields */
- pdw = (DWORD*) ((CARD8*)pbmih + sizeof (BITMAPINFOHEADER));
-
-#ifdef WINDBG
- winDebug ("%s - Masks: %08x %08x %08x\n", __FUNCTION__,
- pdw[0], pdw[1], pdw[2]);
- winDebug ("%s - Bitmap: %dx%d %d bpp %d planes\n", __FUNCTION__,
- pbmih->biWidth, pbmih->biHeight, pbmih->biBitCount, pbmih->biPlanes);
- winDebug ("%s - Compression: %d %s\n", __FUNCTION__,
- pbmih->biCompression,
- (pbmih->biCompression == BI_RGB?"(BI_RGB)":
- (pbmih->biCompression == BI_RLE8?"(BI_RLE8)":
- (pbmih->biCompression == BI_RLE4?"(BI_RLE4)":
- (pbmih->biCompression == BI_BITFIELDS?"(BI_BITFIELDS)":""
- )))));
-#endif
-
- /* Handle BI_RGB case, which is returned by Wine */
- if (pbmih->biCompression == BI_RGB)
- {
- dwRedBits = 5;
- dwGreenBits = 5;
- dwBlueBits = 5;
-
- pScreenPriv->dwBitsPerRGB = 5;
-
- /* Set screen privates masks */
- pScreenPriv->dwRedMask = 0x7c00;
- pScreenPriv->dwGreenMask = 0x03e0;
- pScreenPriv->dwBlueMask = 0x001f;
- }
- else
- {
- /* Count the number of bits in each mask */
- dwRedBits = winCountBits (pdw[0]);
- dwGreenBits = winCountBits (pdw[1]);
- dwBlueBits = winCountBits (pdw[2]);
-
- /* Find maximum bits per red, green, blue */
- if (dwRedBits > dwGreenBits && dwRedBits > dwBlueBits)
- pScreenPriv->dwBitsPerRGB = dwRedBits;
- else if (dwGreenBits > dwRedBits && dwGreenBits > dwBlueBits)
- pScreenPriv->dwBitsPerRGB = dwGreenBits;
- else
- pScreenPriv->dwBitsPerRGB = dwBlueBits;
-
- /* Set screen privates masks */
- pScreenPriv->dwRedMask = pdw[0];
- pScreenPriv->dwGreenMask = pdw[1];
- pScreenPriv->dwBlueMask = pdw[2];
- }
- }
- else
- {
- ErrorF ("winQueryRGBBitsAndMasks - winQueryScreenDIBFormat failed\n");
- free (pbmih);
- fReturn = FALSE;
- }
-
- /* Free memory */
- free (pbmih);
-
- return fReturn;
-}
-
-
-#ifdef XWIN_MULTIWINDOW
-/*
- * Redraw all ---?
- */
-
-static wBOOL CALLBACK
-winRedrawAllProcShadowGDI (HWND hwnd, LPARAM lParam)
-{
- if (hwnd == (HWND)lParam)
- return TRUE;
- InvalidateRect (hwnd, NULL, FALSE);
- UpdateWindow (hwnd);
- return TRUE;
-}
-
-static wBOOL CALLBACK
-winRedrawDamagedWindowShadowGDI (HWND hwnd, LPARAM lParam)
-{
- BoxPtr pDamage = (BoxPtr)lParam;
- RECT rcClient, rcDamage, rcRedraw;
- POINT topLeft, bottomRight;
-
- if (IsIconic (hwnd))
- return TRUE; /* Don't care minimized windows */
-
- /* Convert the damaged area from Screen coords to Client coords */
- topLeft.x = pDamage->x1; topLeft.y = pDamage->y1;
- bottomRight.x = pDamage->x2; bottomRight.y = pDamage->y2;
- topLeft.x += GetSystemMetrics (SM_XVIRTUALSCREEN);
- bottomRight.x += GetSystemMetrics (SM_XVIRTUALSCREEN);
- topLeft.y += GetSystemMetrics (SM_YVIRTUALSCREEN);
- bottomRight.y += GetSystemMetrics (SM_YVIRTUALSCREEN);
- ScreenToClient (hwnd, &topLeft);
- ScreenToClient (hwnd, &bottomRight);
- SetRect (&rcDamage, topLeft.x, topLeft.y, bottomRight.x, bottomRight.y);
-
- GetClientRect (hwnd, &rcClient);
-
- if (IntersectRect (&rcRedraw, &rcClient, &rcDamage))
- {
- InvalidateRect (hwnd, &rcRedraw, FALSE);
- UpdateWindow (hwnd);
- }
- return TRUE;
-}
-#endif
-
-
-/*
- * Allocate a DIB for the shadow framebuffer GDI server
- */
-
-static Bool
-winAllocateFBShadowGDI (ScreenPtr pScreen)
-{
- winScreenPriv(pScreen);
- winScreenInfo *pScreenInfo = pScreenPriv->pScreenInfo;
- DIBSECTION dibsection;
- Bool fReturn = TRUE;
-
- /* Describe shadow bitmap to be created */
- pScreenPriv->pbmih->biWidth = pScreenInfo->dwWidth;
- pScreenPriv->pbmih->biHeight = -pScreenInfo->dwHeight;
-
- winDebug ("winAllocateFBShadowGDI - Creating DIB with width: %d height: %d "
- "depth: %d\n",
- (int) pScreenPriv->pbmih->biWidth, (int) -pScreenPriv->pbmih->biHeight, pScreenPriv->pbmih->biBitCount);
-
- /* Create a DI shadow bitmap with a bit pointer */
- pScreenPriv->hbmpShadow = CreateDIBSection (pScreenPriv->hdcScreen,
- (BITMAPINFO *) pScreenPriv->pbmih,
- DIB_RGB_COLORS,
- (VOID**) &pScreenInfo->pfb,
- NULL,
- 0);
- if (pScreenPriv->hbmpShadow == NULL || pScreenInfo->pfb == NULL)
- {
- winW32Error ("winAllocateFBShadowGDI - CreateDIBSection failed:");
- return FALSE;
- }
- else
- {
- winDebug ("winAllocateFBShadowGDI - Shadow buffer allocated\n");
- }
-
- /* Get information about the bitmap that was allocated */
- GetObject (pScreenPriv->hbmpShadow,
- sizeof (dibsection),
- &dibsection);
-
- /* Print information about bitmap allocated */
- winDebug ("winAllocateFBShadowGDI - Dibsection width: %d height: %d "
- "depth: %d size image: %d\n",
- (int) dibsection.dsBmih.biWidth, (int) dibsection.dsBmih.biHeight,
- dibsection.dsBmih.biBitCount,
- (int) dibsection.dsBmih.biSizeImage);
-
- /* Select the shadow bitmap into the shadow DC */
- SelectObject (pScreenPriv->hdcShadow,
- pScreenPriv->hbmpShadow);
-
- winDebug ("winAllocateFBShadowGDI - Attempting a shadow blit\n");
-
- /* Do a test blit from the shadow to the screen, I think */
- fReturn = BitBlt (pScreenPriv->hdcScreen,
- 0, 0,
- pScreenInfo->dwWidth, pScreenInfo->dwHeight,
- pScreenPriv->hdcShadow,
- 0, 0,
- SRCCOPY);
- if (fReturn)
- {
- winDebug ("winAllocateFBShadowGDI - Shadow blit success\n");
- }
- else
- {
- winW32Error ("winAllocateFBShadowGDI - Shadow blit failure\n");
- /* ago: ignore this error. The blit fails with wine, but does not
- * cause any problems later. */
-
- fReturn = TRUE;
- }
-
- /* Look for height weirdness */
- if (dibsection.dsBmih.biHeight < 0)
- {
- dibsection.dsBmih.biHeight = -dibsection.dsBmih.biHeight;
- }
-
- /* Set screeninfo stride */
- pScreenInfo->dwStride = ((dibsection.dsBmih.biSizeImage
- / dibsection.dsBmih.biHeight)
- * 8) / pScreenInfo->dwBPP;
-
- winDebug ("winAllocateFBShadowGDI - Created shadow stride: %d\n",
- (int) pScreenInfo->dwStride);
-
-#ifdef XWIN_MULTIWINDOW
- /* Redraw all windows */
- if (pScreenInfo->fMultiWindow)
- EnumThreadWindows (g_dwCurrentThreadID, winRedrawAllProcShadowGDI, 0);
-#endif
-
- return fReturn;
-}
-
-static void
-winFreeFBShadowGDI (ScreenPtr pScreen)
-{
- winScreenPriv(pScreen);
- winScreenInfo *pScreenInfo = pScreenPriv->pScreenInfo;
-
- /* Free the shadow bitmap */
- DeleteObject (pScreenPriv->hbmpShadow);
-
- /* Invalidate the ScreenInfo's fb pointer */
- pScreenInfo->pfb = NULL;
-}
-
-/*
- * Blit the damaged regions of the shadow fb to the screen
- */
-
-static void
-winShadowUpdateGDI (ScreenPtr pScreen,
- shadowBufPtr pBuf)
-{
- winScreenPriv(pScreen);
- winScreenInfo *pScreenInfo = pScreenPriv->pScreenInfo;
- RegionPtr damage = shadowDamage(pBuf);
- DWORD dwBox = RegionNumRects (damage);
- BoxPtr pBox = RegionRects (damage);
- int x, y, w, h;
- HRGN hrgnTemp = NULL, hrgnCombined = NULL;
-#ifdef XWIN_UPDATESTATS
- static DWORD s_dwNonUnitRegions = 0;
- static DWORD s_dwTotalUpdates = 0;
- static DWORD s_dwTotalBoxes = 0;
-#endif
- BoxPtr pBoxExtents = RegionExtents(damage);
-
- /*
- * 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;
-
-#ifdef XWIN_UPDATESTATS
- ++s_dwTotalUpdates;
- s_dwTotalBoxes += dwBox;
-
- if (dwBox != 1)
- {
- ++s_dwNonUnitRegions;
- winDebug ("winShadowUpdatGDI - dwBox: %d\n", dwBox);
- }
-
- if ((s_dwTotalUpdates % 100) == 0)
- {
- winDebug ("winShadowUpdateGDI - %d%% non-unity regions, avg boxes: %d "
- "nu: %d tu: %d\n",
- (s_dwNonUnitRegions * 100) / s_dwTotalUpdates,
- s_dwTotalBoxes / s_dwTotalUpdates,
- s_dwNonUnitRegions, s_dwTotalUpdates);
- }
-#endif /* XWIN_UPDATESTATS */
-
- /*
- * 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->fMultiWindow &&
- (pScreenInfo->dwClipUpdatesNBoxes == 0 ||
- dwBox < pScreenInfo->dwClipUpdatesNBoxes))
- {
- /* Loop through all boxes in the damaged region */
- while (dwBox--)
- {
- /*
- * Calculate x offset, y offset, width, and height for
- * current damage box
- */
- x = pBox->x1;
- y = pBox->y1;
- w = pBox->x2 - pBox->x1;
- h = pBox->y2 - pBox->y1;
-
- BitBlt (pScreenPriv->hdcScreen,
- x, y,
- w, h,
- pScreenPriv->hdcShadow,
- x, y,
- SRCCOPY);
-
- /* Get a pointer to the next box */
- ++pBox;
- }
- }
- else if (!pScreenInfo->fMultiWindow)
- {
- /* 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;
-
- /*
- * Blit the shadow buffer to the screen,
- * constrained to the clipping region.
- */
- BitBlt (pScreenPriv->hdcScreen,
- pBoxExtents->x1, pBoxExtents->y1,
- pBoxExtents->x2 - pBoxExtents->x1,
- pBoxExtents->y2 - pBoxExtents->y1,
- pScreenPriv->hdcShadow,
- pBoxExtents->x1, pBoxExtents->y1,
- SRCCOPY);
-
- /* Reset the clip region */
- SelectClipRgn (pScreenPriv->hdcScreen, NULL);
- }
-
-#ifdef XWIN_MULTIWINDOW
- /* Redraw all multiwindow windows */
- if (pScreenInfo->fMultiWindow)
- EnumThreadWindows (g_dwCurrentThreadID,
- winRedrawDamagedWindowShadowGDI,
- (LPARAM)pBoxExtents);
-#endif
-}
-
-
-static Bool
-winInitScreenShadowGDI (ScreenPtr pScreen)
-{
- winScreenPriv(pScreen);
-
- /* Get device contexts for the screen and shadow bitmap */
- pScreenPriv->hdcScreen = GetDC (pScreenPriv->hwndScreen);
- pScreenPriv->hdcShadow = CreateCompatibleDC (pScreenPriv->hdcScreen);
-
- /* Allocate bitmap info header */
- pScreenPriv->pbmih = (BITMAPINFOHEADER*) malloc (sizeof (BITMAPINFOHEADER)
- + 256 * sizeof (RGBQUAD));
- if (pScreenPriv->pbmih == NULL)
- {
- ErrorF ("winInitScreenShadowGDI - malloc () failed\n");
- return FALSE;
- }
-
- /* Query the screen format */
- if (!winQueryScreenDIBFormat (pScreen, pScreenPriv->pbmih))
- {
- ErrorF ("winInitScreenShadowGDI - winQueryScreenDIBFormat failed\n");
- return FALSE;
- }
-
- /* Determine our color masks */
- if (!winQueryRGBBitsAndMasks (pScreen))
- {
- ErrorF ("winInitScreenShadowGDI - winQueryRGBBitsAndMasks failed\n");
- return FALSE;
- }
-
- return winAllocateFBShadowGDI(pScreen);
-}
-
-/* See Porting Layer Definition - p. 33 */
-/*
- * We wrap whatever CloseScreen procedure was specified by fb;
- * a pointer to said procedure is stored in our privates.
- */
-
-static Bool
-winCloseScreenShadowGDI (int nIndex, ScreenPtr pScreen)
-{
- winScreenPriv(pScreen);
- winScreenInfo *pScreenInfo = pScreenPriv->pScreenInfo;
- Bool fReturn;
-
- winDebug ("winCloseScreenShadowGDI - Freeing screen resources\n");
-
- /* Flag that the screen is closed */
- pScreenPriv->fClosed = TRUE;
- pScreenPriv->fActive = FALSE;
-
- /* Call the wrapped CloseScreen procedure */
- WIN_UNWRAP(CloseScreen);
- fReturn = (*pScreen->CloseScreen) (nIndex, pScreen);
-
- /* Delete the window property */
- RemoveProp (pScreenPriv->hwndScreen, WIN_SCR_PROP);
-
- /* Free the shadow DC; which allows the bitmap to be freed */
- DeleteDC (pScreenPriv->hdcShadow);
-
- winFreeFBShadowGDI(pScreen);
-
- /* Free the screen DC */
- ReleaseDC (pScreenPriv->hwndScreen, pScreenPriv->hdcScreen);
-
- /* 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
-
- /* Invalidate our screeninfo's pointer to the screen */
- pScreenInfo->pScreen = 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
-winInitVisualsShadowGDI (ScreenPtr pScreen)
-{
- winScreenPriv(pScreen);
- winScreenInfo *pScreenInfo = pScreenPriv->pScreenInfo;
-
- /* Display debugging information */
- winDebug ("winInitVisualsShadowGDI - 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 ("winInitVisualsShadowGDI - miSetVisualTypesAndMasks "
- "failed\n");
- return FALSE;
- }
-
-#ifdef XWIN_EMULATEPSEUDO
- if (!pScreenInfo->fEmulatePseudo)
- break;
-
- /* Setup a pseudocolor visual */
- if (!miSetVisualTypesAndMasks (8,
- PseudoColorMask,
- 8,
- -1,
- 0,
- 0,
- 0))
- {
- ErrorF ("winInitVisualsShadowGDI - miSetVisualTypesAndMasks "
- "failed for PseudoColor\n");
- return FALSE;
- }
-#endif
- break;
-
- case 8:
- if (!miSetVisualTypesAndMasks (pScreenInfo->dwDepth,
- PseudoColorMask,
- pScreenPriv->dwBitsPerRGB,
- PseudoColor,
- pScreenPriv->dwRedMask,
- pScreenPriv->dwGreenMask,
- pScreenPriv->dwBlueMask))
- {
- ErrorF ("winInitVisualsShadowGDI - miSetVisualTypesAndMasks "
- "failed\n");
- return FALSE;
- }
- break;
-
- default:
- ErrorF ("winInitVisualsShadowGDI - Unknown screen depth\n");
- return FALSE;
- }
-
- winDebug ("winInitVisualsShadowGDI - Returning\n");
-
- return TRUE;
-}
-
-
-/*
- * Adjust the proposed video mode
- */
-
-static Bool
-winAdjustVideoModeShadowGDI (ScreenPtr pScreen)
-{
- winScreenPriv(pScreen);
- winScreenInfo *pScreenInfo = pScreenPriv->pScreenInfo;
- HDC hdc;
- DWORD dwBPP;
-
- hdc = GetDC (NULL);
-
- /* We're in serious trouble if we can't get a DC */
- if (hdc == NULL)
- {
- ErrorF ("winAdjustVideoModeShadowGDI - GetDC () failed\n");
- return FALSE;
- }
-
- /* Query GDI for current display depth */
- dwBPP = GetDeviceCaps (hdc, BITSPIXEL);
-
- /* GDI cannot change the screen depth, so always use GDI's depth */
- pScreenInfo->dwBPP = dwBPP;
-
- /* Release our DC */
- ReleaseDC (NULL, hdc);
- hdc = NULL;
-
- return TRUE;
-}
-
-
-/*
- * Blt exposed regions to the screen
- */
-
-static Bool
-winBltExposedRegionsShadowGDI (ScreenPtr pScreen)
-{
- winScreenPriv(pScreen);
- winScreenInfo *pScreenInfo = pScreenPriv->pScreenInfo;
- winPrivCmapPtr pCmapPriv = NULL;
- HDC hdcUpdate;
- PAINTSTRUCT ps;
-
- /* BeginPaint gives us an hdc that clips to the invalidated region */
- hdcUpdate = BeginPaint (pScreenPriv->hwndScreen, &ps);
-
- /* Realize the palette, if we have one */
- if (pScreenPriv->pcmapInstalled != NULL)
- {
- pCmapPriv = winGetCmapPriv (pScreenPriv->pcmapInstalled);
-
- SelectPalette (hdcUpdate, pCmapPriv->hPalette, FALSE);
- RealizePalette (hdcUpdate);
- }
-
- /* Our BitBlt will be clipped to the invalidated region */
- BitBlt (hdcUpdate,
- 0, 0,
- pScreenInfo->dwWidth, pScreenInfo->dwHeight,
- pScreenPriv->hdcShadow,
- 0, 0,
- SRCCOPY);
-
- /* EndPaint frees the DC */
- EndPaint (pScreenPriv->hwndScreen, &ps);
-
-#ifdef XWIN_MULTIWINDOW
- /* Redraw all windows */
- if (pScreenInfo->fMultiWindow)
- EnumThreadWindows(g_dwCurrentThreadID, winRedrawAllProcShadowGDI,
- (LPARAM)pScreenPriv->hwndScreen);
-#endif
-
- return TRUE;
-}
-
-
-/*
- * Do any engine-specific appliation-activation processing
- */
-
-static Bool
-winActivateAppShadowGDI (ScreenPtr pScreen)
-{
- winScreenPriv(pScreen);
- winScreenInfo *pScreenInfo = pScreenPriv->pScreenInfo;
-
- /*
- * 2004/04/12 - Harold - We perform the restoring or minimizing
- * manually for ShadowGDI in fullscreen modes so that this engine
- * will perform just like ShadowDD and ShadowDDNL in fullscreen mode;
- * if we do not do this then our fullscreen window will appear in the
- * z-order when it is deactivated and it can be uncovered by resizing
- * or minimizing another window that is on top of it, which is not how
- * the DirectDraw engines work. Therefore we keep this code here to
- * make sure that all engines work the same in fullscreen mode.
- */
-
- /*
- * Are we active?
- * Are we fullscreen?
- */
- if (pScreenPriv->fActive
- && pScreenInfo->fFullScreen)
- {
- /*
- * Activating, attempt to bring our window
- * to the top of the display
- */
- ShowWindow (pScreenPriv->hwndScreen, SW_RESTORE);
- }
- else if (!pScreenPriv->fActive
- && pScreenInfo->fFullScreen)
- {
- /*
- * Deactivating, stuff our window onto the
- * task bar.
- */
- ShowWindow (pScreenPriv->hwndScreen, SW_MINIMIZE);
- }
-
- return TRUE;
-}
-
-
-/*
- * Reblit the shadow framebuffer to the screen.
- */
-
-static Bool
-winRedrawScreenShadowGDI (ScreenPtr pScreen)
-{
- winScreenPriv(pScreen);
- winScreenInfo *pScreenInfo = pScreenPriv->pScreenInfo;
-
- /* Redraw the whole window, to take account for the new colors */
- BitBlt (pScreenPriv->hdcScreen,
- 0, 0,
- pScreenInfo->dwWidth, pScreenInfo->dwHeight,
- pScreenPriv->hdcShadow,
- 0, 0,
- SRCCOPY);
-
-#ifdef XWIN_MULTIWINDOW
- /* Redraw all windows */
- if (pScreenInfo->fMultiWindow)
- EnumThreadWindows(g_dwCurrentThreadID, winRedrawAllProcShadowGDI, 0);
-#endif
-
- return TRUE;
-}
-
-
-
-/*
- * Realize the currently installed colormap
- */
-
-static Bool
-winRealizeInstalledPaletteShadowGDI (ScreenPtr pScreen)
-{
- winScreenPriv(pScreen);
- winPrivCmapPtr pCmapPriv = NULL;
-
- winDebug ("winRealizeInstalledPaletteShadowGDI\n");
-
- /* Don't do anything if there is not a colormap */
- if (pScreenPriv->pcmapInstalled == NULL)
- {
- winDebug ("winRealizeInstalledPaletteShadowGDI - No colormap "
- "installed\n");
- return TRUE;
- }
-
- pCmapPriv = winGetCmapPriv (pScreenPriv->pcmapInstalled);
-
- /* Realize our palette for the screen */
- if (RealizePalette (pScreenPriv->hdcScreen) == GDI_ERROR)
- {
- ErrorF ("winRealizeInstalledPaletteShadowGDI - RealizePalette () "
- "failed\n");
- return FALSE;
- }
-
- /* Set the DIB color table */
- if (SetDIBColorTable (pScreenPriv->hdcShadow,
- 0,
- WIN_NUM_PALETTE_ENTRIES,
- pCmapPriv->rgbColors) == 0)
- {
- ErrorF ("winRealizeInstalledPaletteShadowGDI - SetDIBColorTable () "
- "failed\n");
- return FALSE;
- }
-
- return TRUE;
-}
-
-
-/*
- * Install the specified colormap
- */
-
-static Bool
-winInstallColormapShadowGDI (ColormapPtr pColormap)
-{
- ScreenPtr pScreen = pColormap->pScreen;
- winScreenPriv(pScreen);
- winScreenInfo *pScreenInfo = pScreenPriv->pScreenInfo;
- winCmapPriv(pColormap);
-
- /*
- * Tell Windows to install the new colormap
- */
- if (SelectPalette (pScreenPriv->hdcScreen,
- pCmapPriv->hPalette,
- FALSE) == NULL)
- {
- ErrorF ("winInstallColormapShadowGDI - SelectPalette () failed\n");
- return FALSE;
- }
-
- /* Realize the palette */
- if (GDI_ERROR == RealizePalette (pScreenPriv->hdcScreen))
- {
- ErrorF ("winInstallColormapShadowGDI - RealizePalette () failed\n");
- return FALSE;
- }
-
- /* Set the DIB color table */
- if (SetDIBColorTable (pScreenPriv->hdcShadow,
- 0,
- WIN_NUM_PALETTE_ENTRIES,
- pCmapPriv->rgbColors) == 0)
- {
- ErrorF ("winInstallColormapShadowGDI - SetDIBColorTable () failed\n");
- return FALSE;
- }
-
- /* Redraw the whole window, to take account for the new colors */
- BitBlt (pScreenPriv->hdcScreen,
- 0, 0,
- pScreenInfo->dwWidth, pScreenInfo->dwHeight,
- pScreenPriv->hdcShadow,
- 0, 0,
- SRCCOPY);
-
- /* Save a pointer to the newly installed colormap */
- pScreenPriv->pcmapInstalled = pColormap;
-
-#ifdef XWIN_MULTIWINDOW
- /* Redraw all windows */
- if (pScreenInfo->fMultiWindow)
- EnumThreadWindows (g_dwCurrentThreadID, winRedrawAllProcShadowGDI, 0);
-#endif
-
- return TRUE;
-}
-
-
-/*
- * Store the specified colors in the specified colormap
- */
-
-static Bool
-winStoreColorsShadowGDI (ColormapPtr pColormap,
- int ndef,
- xColorItem *pdefs)
-{
- ScreenPtr pScreen = pColormap->pScreen;
- winScreenPriv(pScreen);
- winCmapPriv(pColormap);
- ColormapPtr curpmap = pScreenPriv->pcmapInstalled;
-
- /* Put the X colormap entries into the Windows logical palette */
- if (SetPaletteEntries (pCmapPriv->hPalette,
- pdefs[0].pixel,
- ndef,
- pCmapPriv->peColors + pdefs[0].pixel) == 0)
- {
- ErrorF ("winStoreColorsShadowGDI - SetPaletteEntries () failed\n");
- return FALSE;
- }
-
- /* Don't install the Windows palette if the colormap is not installed */
- if (pColormap != curpmap)
- {
- return TRUE;
- }
-
- /* Try to install the newly modified colormap */
- if (!winInstallColormapShadowGDI (pColormap))
- {
- ErrorF ("winInstallColormapShadowGDI - winInstallColormapShadowGDI "
- "failed\n");
- return FALSE;
- }
-
-#if 0
- /* Tell Windows that the palette has changed */
- RealizePalette (pScreenPriv->hdcScreen);
-
- /* Set the DIB color table */
- if (SetDIBColorTable (pScreenPriv->hdcShadow,
- pdefs[0].pixel,
- ndef,
- pCmapPriv->rgbColors + pdefs[0].pixel) == 0)
- {
- ErrorF ("winInstallColormapShadowGDI - SetDIBColorTable () failed\n");
- return FALSE;
- }
-
- /* Save a pointer to the newly installed colormap */
- pScreenPriv->pcmapInstalled = pColormap;
-#endif
-
- return TRUE;
-}
-
-
-/*
- * Colormap initialization procedure
- */
-
-static Bool
-winCreateColormapShadowGDI (ColormapPtr pColormap)
-{
- LPLOGPALETTE lpPaletteNew = NULL;
- DWORD dwEntriesMax;
- VisualPtr pVisual;
- HPALETTE hpalNew = NULL;
- winCmapPriv(pColormap);
-
- /* Get a pointer to the visual that the colormap belongs to */
- pVisual = pColormap->pVisual;
-
- /* Get the maximum number of palette entries for this visual */
- dwEntriesMax = pVisual->ColormapEntries;
-
- /* Allocate a Windows logical color palette with max entries */
- lpPaletteNew = malloc (sizeof (LOGPALETTE)
- + (dwEntriesMax - 1) * sizeof (PALETTEENTRY));
- if (lpPaletteNew == NULL)
- {
- ErrorF ("winCreateColormapShadowGDI - Couldn't allocate palette "
- "with %d entries\n",
- (int) dwEntriesMax);
- return FALSE;
- }
-
- /* Zero out the colormap */
- ZeroMemory (lpPaletteNew, sizeof (LOGPALETTE)
- + (dwEntriesMax - 1) * sizeof (PALETTEENTRY));
-
- /* Set the logical palette structure */
- lpPaletteNew->palVersion = 0x0300;
- lpPaletteNew->palNumEntries = dwEntriesMax;
-
- /* Tell Windows to create the palette */
- hpalNew = CreatePalette (lpPaletteNew);
- if (hpalNew == NULL)
- {
- ErrorF ("winCreateColormapShadowGDI - CreatePalette () failed\n");
- free (lpPaletteNew);
- return FALSE;
- }
-
- /* Save the Windows logical palette handle in the X colormaps' privates */
- pCmapPriv->hPalette = hpalNew;
-
- /* Free the palette initialization memory */
- free (lpPaletteNew);
-
- return TRUE;
-}
-
-
-/*
- * Colormap destruction procedure
- */
-
-static Bool
-winDestroyColormapShadowGDI (ColormapPtr pColormap)
-{
- winScreenPriv(pColormap->pScreen);
- winCmapPriv(pColormap);
-
- /*
- * 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)
- {
- winDebug ("winDestroyColormapShadowGDI - Destroying default "
- "colormap\n");
-
- /*
- * FIXME: Walk the list of all screens, popping the default
- * palette out of each screen device context.
- */
-
- /* Pop the palette out of the device context */
- SelectPalette (pScreenPriv->hdcScreen,
- GetStockObject (DEFAULT_PALETTE),
- FALSE);
-
- /* Clear our private installed colormap pointer */
- pScreenPriv->pcmapInstalled = NULL;
- }
-
- /* Try to delete the logical palette */
- if (DeleteObject (pCmapPriv->hPalette) == 0)
- {
- ErrorF ("winDestroyColormap - DeleteObject () failed\n");
- return FALSE;
- }
-
- /* Invalidate the colormap privates */
- pCmapPriv->hPalette = NULL;
-
- return TRUE;
-}
-
-
-/*
- * Set engine specific funtions
- */
-
-Bool
-winSetEngineFunctionsShadowGDI (ScreenPtr pScreen)
-{
- winScreenPriv(pScreen);
- winScreenInfo *pScreenInfo = pScreenPriv->pScreenInfo;
-
- /* Set our pointers */
- pScreenPriv->pwinAllocateFB = winAllocateFBShadowGDI;
- pScreenPriv->pwinFreeFB = winFreeFBShadowGDI;
- pScreenPriv->pwinShadowUpdate = winShadowUpdateGDI;
- pScreenPriv->pwinInitScreen = winInitScreenShadowGDI;
- pScreenPriv->pwinCloseScreen = winCloseScreenShadowGDI;
- pScreenPriv->pwinInitVisuals = winInitVisualsShadowGDI;
- pScreenPriv->pwinAdjustVideoMode = winAdjustVideoModeShadowGDI;
- if (pScreenInfo->fFullScreen)
- pScreenPriv->pwinCreateBoundingWindow = winCreateBoundingWindowFullScreen;
- else
- pScreenPriv->pwinCreateBoundingWindow = winCreateBoundingWindowWindowed;
- pScreenPriv->pwinFinishScreenInit = winFinishScreenInitFB;
- pScreenPriv->pwinBltExposedRegions = winBltExposedRegionsShadowGDI;
- pScreenPriv->pwinActivateApp = winActivateAppShadowGDI;
- pScreenPriv->pwinRedrawScreen = winRedrawScreenShadowGDI;
- pScreenPriv->pwinRealizeInstalledPalette =
- winRealizeInstalledPaletteShadowGDI;
- pScreenPriv->pwinInstallColormap = winInstallColormapShadowGDI;
- pScreenPriv->pwinStoreColors = winStoreColorsShadowGDI;
- pScreenPriv->pwinCreateColormap = winCreateColormapShadowGDI;
- pScreenPriv->pwinDestroyColormap = winDestroyColormapShadowGDI;
- pScreenPriv->pwinHotKeyAltTab = (winHotKeyAltTabProcPtr) (void (*)(void))NoopDDA;
- pScreenPriv->pwinCreatePrimarySurface
- = (winCreatePrimarySurfaceProcPtr) (void (*)(void))NoopDDA;
- pScreenPriv->pwinReleasePrimarySurface
- = (winReleasePrimarySurfaceProcPtr) (void (*)(void))NoopDDA;
-#ifdef XWIN_MULTIWINDOW
- pScreenPriv->pwinFinishCreateWindowsWindow =
- (winFinishCreateWindowsWindowProcPtr) (void (*)(void))NoopDDA;
-#endif
-
- return TRUE;
-}
+/*
+ *Copyright (C) 2001-2004 Harold L Hunt II 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 HAROLD L HUNT II 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 Harold L Hunt II
+ *shall not be used in advertising or otherwise to promote the sale, use
+ *or other dealings in this Software without prior written authorization
+ *from Harold L Hunt II.
+ *
+ * Authors: Harold L Hunt II
+ */
+
+#ifdef HAVE_XWIN_CONFIG_H
+#include <xwin-config.h>
+#endif
+#include "win.h"
+
+
+/*
+ * Local function prototypes
+ */
+
+#ifdef XWIN_MULTIWINDOW
+static wBOOL CALLBACK
+winRedrawAllProcShadowGDI (HWND hwnd, LPARAM lParam);
+
+static wBOOL CALLBACK
+winRedrawDamagedWindowShadowGDI (HWND hwnd, LPARAM lParam);
+#endif
+
+static Bool
+winAllocateFBShadowGDI (ScreenPtr pScreen);
+
+static void
+winShadowUpdateGDI (ScreenPtr pScreen,
+ shadowBufPtr pBuf);
+
+static Bool
+winCloseScreenShadowGDI (int nIndex, ScreenPtr pScreen);
+
+static Bool
+winInitVisualsShadowGDI (ScreenPtr pScreen);
+
+static Bool
+winAdjustVideoModeShadowGDI (ScreenPtr pScreen);
+
+static Bool
+winBltExposedRegionsShadowGDI (ScreenPtr pScreen);
+
+static Bool
+winActivateAppShadowGDI (ScreenPtr pScreen);
+
+static Bool
+winRedrawScreenShadowGDI (ScreenPtr pScreen);
+
+static Bool
+winRealizeInstalledPaletteShadowGDI (ScreenPtr pScreen);
+
+static Bool
+winInstallColormapShadowGDI (ColormapPtr pColormap);
+
+static Bool
+winStoreColorsShadowGDI (ColormapPtr pmap,
+ int ndef,
+ xColorItem *pdefs);
+
+static Bool
+winCreateColormapShadowGDI (ColormapPtr pColormap);
+
+static Bool
+winDestroyColormapShadowGDI (ColormapPtr pColormap);
+
+
+/*
+ * Internal function to get the DIB format that is compatible with the screen
+ */
+
+static
+Bool
+winQueryScreenDIBFormat (ScreenPtr pScreen, BITMAPINFOHEADER *pbmih)
+{
+ winScreenPriv(pScreen);
+ HBITMAP hbmp;
+#ifdef WINDBG
+ LPDWORD pdw = NULL;
+#endif
+
+ /* Create a memory bitmap compatible with the screen */
+ hbmp = CreateCompatibleBitmap (pScreenPriv->hdcScreen, 1, 1);
+ if (hbmp == NULL)
+ {
+ ErrorF ("winQueryScreenDIBFormat - CreateCompatibleBitmap failed\n");
+ return FALSE;
+ }
+
+ /* Initialize our bitmap info header */
+ ZeroMemory (pbmih, sizeof (BITMAPINFOHEADER) + 256 * sizeof (RGBQUAD));
+ pbmih->biSize = sizeof (BITMAPINFOHEADER);
+
+ /* Get the biBitCount */
+ if (!GetDIBits (pScreenPriv->hdcScreen,
+ hbmp,
+ 0, 1,
+ NULL,
+ (BITMAPINFO*) pbmih,
+ DIB_RGB_COLORS))
+ {
+ ErrorF ("winQueryScreenDIBFormat - First call to GetDIBits failed\n");
+ DeleteObject (hbmp);
+ return FALSE;
+ }
+
+#ifdef WINDBG
+ /* Get a pointer to bitfields */
+ pdw = (DWORD*) ((CARD8*)pbmih + sizeof (BITMAPINFOHEADER));
+
+ winDebug ("winQueryScreenDIBFormat - First call masks: %08x %08x %08x\n",
+ pdw[0], pdw[1], pdw[2]);
+#endif
+
+ /* Get optimal color table, or the optimal bitfields */
+ if (!GetDIBits (pScreenPriv->hdcScreen,
+ hbmp,
+ 0, 1,
+ NULL,
+ (BITMAPINFO*)pbmih,
+ DIB_RGB_COLORS))
+ {
+ ErrorF ("winQueryScreenDIBFormat - Second call to GetDIBits "
+ "failed\n");
+ DeleteObject (hbmp);
+ return FALSE;
+ }
+
+ /* Free memory */
+ DeleteObject (hbmp);
+
+ return TRUE;
+}
+
+
+/*
+ * Internal function to determine the GDI bits per rgb and bit masks
+ */
+
+static
+Bool
+winQueryRGBBitsAndMasks (ScreenPtr pScreen)
+{
+ winScreenPriv(pScreen);
+ BITMAPINFOHEADER *pbmih = NULL;
+ Bool fReturn = TRUE;
+ LPDWORD pdw = NULL;
+ DWORD dwRedBits, dwGreenBits, dwBlueBits;
+
+ /* Color masks for 8 bpp are standardized */
+ if (GetDeviceCaps (pScreenPriv->hdcScreen, RASTERCAPS) & RC_PALETTE)
+ {
+ /*
+ * RGB BPP for 8 bit palletes is always 8
+ * and the color masks are always 0.
+ */
+ pScreenPriv->dwBitsPerRGB = 8;
+ pScreenPriv->dwRedMask = 0x0L;
+ pScreenPriv->dwGreenMask = 0x0L;
+ pScreenPriv->dwBlueMask = 0x0L;
+ return TRUE;
+ }
+
+ /* Color masks for 24 bpp are standardized */
+ if (GetDeviceCaps (pScreenPriv->hdcScreen, PLANES)
+ * GetDeviceCaps (pScreenPriv->hdcScreen, BITSPIXEL) == 24)
+ {
+ winDebug ("winQueryRGBBitsAndMasks - GetDeviceCaps (BITSPIXEL) "
+ "returned 24 for the screen. Using default 24bpp masks.\n");
+
+ /* 8 bits per primary color */
+ pScreenPriv->dwBitsPerRGB = 8;
+
+ /* Set screen privates masks */
+ pScreenPriv->dwRedMask = WIN_24BPP_MASK_RED;
+ pScreenPriv->dwGreenMask = WIN_24BPP_MASK_GREEN;
+ pScreenPriv->dwBlueMask = WIN_24BPP_MASK_BLUE;
+
+ return TRUE;
+ }
+
+ /* Allocate a bitmap header and color table */
+ pbmih = (BITMAPINFOHEADER*) malloc (sizeof (BITMAPINFOHEADER)
+ + 256 * sizeof (RGBQUAD));
+ if (pbmih == NULL)
+ {
+ ErrorF ("winQueryRGBBitsAndMasks - malloc failed\n");
+ return FALSE;
+ }
+
+ /* Get screen description */
+ if (winQueryScreenDIBFormat (pScreen, pbmih))
+ {
+ /* Get a pointer to bitfields */
+ pdw = (DWORD*) ((CARD8*)pbmih + sizeof (BITMAPINFOHEADER));
+
+#ifdef WINDBG
+ winDebug ("%s - Masks: %08x %08x %08x\n", __FUNCTION__,
+ pdw[0], pdw[1], pdw[2]);
+ winDebug ("%s - Bitmap: %dx%d %d bpp %d planes\n", __FUNCTION__,
+ pbmih->biWidth, pbmih->biHeight, pbmih->biBitCount, pbmih->biPlanes);
+ winDebug ("%s - Compression: %d %s\n", __FUNCTION__,
+ pbmih->biCompression,
+ (pbmih->biCompression == BI_RGB?"(BI_RGB)":
+ (pbmih->biCompression == BI_RLE8?"(BI_RLE8)":
+ (pbmih->biCompression == BI_RLE4?"(BI_RLE4)":
+ (pbmih->biCompression == BI_BITFIELDS?"(BI_BITFIELDS)":""
+ )))));
+#endif
+
+ /* Handle BI_RGB case, which is returned by Wine */
+ if (pbmih->biCompression == BI_RGB)
+ {
+ dwRedBits = 5;
+ dwGreenBits = 5;
+ dwBlueBits = 5;
+
+ pScreenPriv->dwBitsPerRGB = 5;
+
+ /* Set screen privates masks */
+ pScreenPriv->dwRedMask = 0x7c00;
+ pScreenPriv->dwGreenMask = 0x03e0;
+ pScreenPriv->dwBlueMask = 0x001f;
+ }
+ else
+ {
+ /* Count the number of bits in each mask */
+ dwRedBits = winCountBits (pdw[0]);
+ dwGreenBits = winCountBits (pdw[1]);
+ dwBlueBits = winCountBits (pdw[2]);
+
+ /* Find maximum bits per red, green, blue */
+ if (dwRedBits > dwGreenBits && dwRedBits > dwBlueBits)
+ pScreenPriv->dwBitsPerRGB = dwRedBits;
+ else if (dwGreenBits > dwRedBits && dwGreenBits > dwBlueBits)
+ pScreenPriv->dwBitsPerRGB = dwGreenBits;
+ else
+ pScreenPriv->dwBitsPerRGB = dwBlueBits;
+
+ /* Set screen privates masks */
+ pScreenPriv->dwRedMask = pdw[0];
+ pScreenPriv->dwGreenMask = pdw[1];
+ pScreenPriv->dwBlueMask = pdw[2];
+ }
+ }
+ else
+ {
+ ErrorF ("winQueryRGBBitsAndMasks - winQueryScreenDIBFormat failed\n");
+ free (pbmih);
+ fReturn = FALSE;
+ }
+
+ /* Free memory */
+ free (pbmih);
+
+ return fReturn;
+}
+
+
+#ifdef XWIN_MULTIWINDOW
+/*
+ * Redraw all ---?
+ */
+
+static wBOOL CALLBACK
+winRedrawAllProcShadowGDI (HWND hwnd, LPARAM lParam)
+{
+ if (hwnd == (HWND)lParam)
+ return TRUE;
+ InvalidateRect (hwnd, NULL, FALSE);
+ UpdateWindow (hwnd);
+ return TRUE;
+}
+
+static wBOOL CALLBACK
+winRedrawDamagedWindowShadowGDI (HWND hwnd, LPARAM lParam)
+{
+ BoxPtr pDamage = (BoxPtr)lParam;
+ RECT rcClient, rcDamage, rcRedraw;
+ POINT topLeft, bottomRight;
+
+ if (IsIconic (hwnd))
+ return TRUE; /* Don't care minimized windows */
+
+ /* Convert the damaged area from Screen coords to Client coords */
+ topLeft.x = pDamage->x1; topLeft.y = pDamage->y1;
+ bottomRight.x = pDamage->x2; bottomRight.y = pDamage->y2;
+ topLeft.x += GetSystemMetrics (SM_XVIRTUALSCREEN);
+ bottomRight.x += GetSystemMetrics (SM_XVIRTUALSCREEN);
+ topLeft.y += GetSystemMetrics (SM_YVIRTUALSCREEN);
+ bottomRight.y += GetSystemMetrics (SM_YVIRTUALSCREEN);
+ ScreenToClient (hwnd, &topLeft);
+ ScreenToClient (hwnd, &bottomRight);
+ SetRect (&rcDamage, topLeft.x, topLeft.y, bottomRight.x, bottomRight.y);
+
+ GetClientRect (hwnd, &rcClient);
+
+ if (IntersectRect (&rcRedraw, &rcClient, &rcDamage))
+ {
+ InvalidateRect (hwnd, &rcRedraw, FALSE);
+ UpdateWindow (hwnd);
+ }
+ return TRUE;
+}
+#endif
+
+
+/*
+ * Allocate a DIB for the shadow framebuffer GDI server
+ */
+
+static Bool
+winAllocateFBShadowGDI (ScreenPtr pScreen)
+{
+ winScreenPriv(pScreen);
+ winScreenInfo *pScreenInfo = pScreenPriv->pScreenInfo;
+ DIBSECTION dibsection;
+ Bool fReturn = TRUE;
+
+ /* Describe shadow bitmap to be created */
+ pScreenPriv->pbmih->biWidth = pScreenInfo->dwWidth;
+ pScreenPriv->pbmih->biHeight = -pScreenInfo->dwHeight;
+
+ winDebug ("winAllocateFBShadowGDI - Creating DIB with width: %d height: %d "
+ "depth: %d\n",
+ (int) pScreenPriv->pbmih->biWidth, (int) -pScreenPriv->pbmih->biHeight, pScreenPriv->pbmih->biBitCount);
+
+ /* Create a DI shadow bitmap with a bit pointer */
+ pScreenPriv->hbmpShadow = CreateDIBSection (pScreenPriv->hdcScreen,
+ (BITMAPINFO *) pScreenPriv->pbmih,
+ DIB_RGB_COLORS,
+ (VOID**) &pScreenInfo->pfb,
+ NULL,
+ 0);
+ if (pScreenPriv->hbmpShadow == NULL || pScreenInfo->pfb == NULL)
+ {
+ winW32Error ("winAllocateFBShadowGDI - CreateDIBSection failed:");
+ return FALSE;
+ }
+ else
+ {
+ winDebug ("winAllocateFBShadowGDI - Shadow buffer allocated\n");
+ }
+
+ /* Get information about the bitmap that was allocated */
+ GetObject (pScreenPriv->hbmpShadow,
+ sizeof (dibsection),
+ &dibsection);
+
+ /* Print information about bitmap allocated */
+ winDebug ("winAllocateFBShadowGDI - Dibsection width: %d height: %d "
+ "depth: %d size image: %d\n",
+ (int) dibsection.dsBmih.biWidth, (int) dibsection.dsBmih.biHeight,
+ dibsection.dsBmih.biBitCount,
+ (int) dibsection.dsBmih.biSizeImage);
+
+ /* Select the shadow bitmap into the shadow DC */
+ SelectObject (pScreenPriv->hdcShadow,
+ pScreenPriv->hbmpShadow);
+
+ winDebug ("winAllocateFBShadowGDI - Attempting a shadow blit\n");
+
+ /* Do a test blit from the shadow to the screen, I think */
+ fReturn = BitBlt (pScreenPriv->hdcScreen,
+ 0, 0,
+ pScreenInfo->dwWidth, pScreenInfo->dwHeight,
+ pScreenPriv->hdcShadow,
+ 0, 0,
+ SRCCOPY);
+ if (fReturn)
+ {
+ winDebug ("winAllocateFBShadowGDI - Shadow blit success\n");
+ }
+ else
+ {
+ winW32Error ("winAllocateFBShadowGDI - Shadow blit failure\n");
+ /* ago: ignore this error. The blit fails with wine, but does not
+ * cause any problems later. */
+
+ fReturn = TRUE;
+ }
+
+ /* Look for height weirdness */
+ if (dibsection.dsBmih.biHeight < 0)
+ {
+ dibsection.dsBmih.biHeight = -dibsection.dsBmih.biHeight;
+ }
+
+ /* Set screeninfo stride */
+ pScreenInfo->dwStride = ((dibsection.dsBmih.biSizeImage
+ / dibsection.dsBmih.biHeight)
+ * 8) / pScreenInfo->dwBPP;
+
+ winDebug ("winAllocateFBShadowGDI - Created shadow stride: %d\n",
+ (int) pScreenInfo->dwStride);
+
+#ifdef XWIN_MULTIWINDOW
+ /* Redraw all windows */
+ if (pScreenInfo->fMultiWindow)
+ EnumThreadWindows (g_dwCurrentThreadID, winRedrawAllProcShadowGDI, 0);
+#endif
+
+ return fReturn;
+}
+
+static void
+winFreeFBShadowGDI (ScreenPtr pScreen)
+{
+ winScreenPriv(pScreen);
+ winScreenInfo *pScreenInfo = pScreenPriv->pScreenInfo;
+
+ /* Free the shadow bitmap */
+ DeleteObject (pScreenPriv->hbmpShadow);
+
+ /* Invalidate the ScreenInfo's fb pointer */
+ pScreenInfo->pfb = NULL;
+}
+
+/*
+ * Blit the damaged regions of the shadow fb to the screen
+ */
+
+static void
+winShadowUpdateGDI (ScreenPtr pScreen,
+ shadowBufPtr pBuf)
+{
+ winScreenPriv(pScreen);
+ winScreenInfo *pScreenInfo = pScreenPriv->pScreenInfo;
+ RegionPtr damage = shadowDamage(pBuf);
+ DWORD dwBox = RegionNumRects (damage);
+ BoxPtr pBox = RegionRects (damage);
+ int x, y, w, h;
+ HRGN hrgnTemp = NULL, hrgnCombined = NULL;
+#ifdef XWIN_UPDATESTATS
+ static DWORD s_dwNonUnitRegions = 0;
+ static DWORD s_dwTotalUpdates = 0;
+ static DWORD s_dwTotalBoxes = 0;
+#endif
+ BoxPtr pBoxExtents = RegionExtents(damage);
+
+ /*
+ * 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;
+
+#ifdef XWIN_UPDATESTATS
+ ++s_dwTotalUpdates;
+ s_dwTotalBoxes += dwBox;
+
+ if (dwBox != 1)
+ {
+ ++s_dwNonUnitRegions;
+ winDebug ("winShadowUpdatGDI - dwBox: %d\n", dwBox);
+ }
+
+ if ((s_dwTotalUpdates % 100) == 0)
+ {
+ winDebug ("winShadowUpdateGDI - %d%% non-unity regions, avg boxes: %d "
+ "nu: %d tu: %d\n",
+ (s_dwNonUnitRegions * 100) / s_dwTotalUpdates,
+ s_dwTotalBoxes / s_dwTotalUpdates,
+ s_dwNonUnitRegions, s_dwTotalUpdates);
+ }
+#endif /* XWIN_UPDATESTATS */
+
+ /*
+ * 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->fMultiWindow &&
+ (pScreenInfo->dwClipUpdatesNBoxes == 0 ||
+ dwBox < pScreenInfo->dwClipUpdatesNBoxes))
+ {
+ /* Loop through all boxes in the damaged region */
+ while (dwBox--)
+ {
+ /*
+ * Calculate x offset, y offset, width, and height for
+ * current damage box
+ */
+ x = pBox->x1;
+ y = pBox->y1;
+ w = pBox->x2 - pBox->x1;
+ h = pBox->y2 - pBox->y1;
+
+ BitBlt (pScreenPriv->hdcScreen,
+ x, y,
+ w, h,
+ pScreenPriv->hdcShadow,
+ x, y,
+ SRCCOPY);
+
+ /* Get a pointer to the next box */
+ ++pBox;
+ }
+ }
+ else if (!pScreenInfo->fMultiWindow)
+ {
+ /* 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;
+
+ /*
+ * Blit the shadow buffer to the screen,
+ * constrained to the clipping region.
+ */
+ BitBlt (pScreenPriv->hdcScreen,
+ pBoxExtents->x1, pBoxExtents->y1,
+ pBoxExtents->x2 - pBoxExtents->x1,
+ pBoxExtents->y2 - pBoxExtents->y1,
+ pScreenPriv->hdcShadow,
+ pBoxExtents->x1, pBoxExtents->y1,
+ SRCCOPY);
+
+ /* Reset the clip region */
+ SelectClipRgn (pScreenPriv->hdcScreen, NULL);
+ }
+
+#ifdef XWIN_MULTIWINDOW
+ /* Redraw all multiwindow windows */
+ if (pScreenInfo->fMultiWindow)
+ EnumThreadWindows (g_dwCurrentThreadID,
+ winRedrawDamagedWindowShadowGDI,
+ (LPARAM)pBoxExtents);
+#endif
+}
+
+
+static Bool
+winInitScreenShadowGDI (ScreenPtr pScreen)
+{
+ winScreenPriv(pScreen);
+
+ /* Get device contexts for the screen and shadow bitmap */
+ pScreenPriv->hdcScreen = GetDC (pScreenPriv->hwndScreen);
+ pScreenPriv->hdcShadow = CreateCompatibleDC (pScreenPriv->hdcScreen);
+
+ /* Allocate bitmap info header */
+ pScreenPriv->pbmih = (BITMAPINFOHEADER*) malloc (sizeof (BITMAPINFOHEADER)
+ + 256 * sizeof (RGBQUAD));
+ if (pScreenPriv->pbmih == NULL)
+ {
+ ErrorF ("winInitScreenShadowGDI - malloc () failed\n");
+ return FALSE;
+ }
+
+ /* Query the screen format */
+ if (!winQueryScreenDIBFormat (pScreen, pScreenPriv->pbmih))
+ {
+ ErrorF ("winInitScreenShadowGDI - winQueryScreenDIBFormat failed\n");
+ return FALSE;
+ }
+
+ /* Determine our color masks */
+ if (!winQueryRGBBitsAndMasks (pScreen))
+ {
+ ErrorF ("winInitScreenShadowGDI - winQueryRGBBitsAndMasks failed\n");
+ return FALSE;
+ }
+
+ return winAllocateFBShadowGDI(pScreen);
+}
+
+/* See Porting Layer Definition - p. 33 */
+/*
+ * We wrap whatever CloseScreen procedure was specified by fb;
+ * a pointer to said procedure is stored in our privates.
+ */
+
+static Bool
+winCloseScreenShadowGDI (int nIndex, ScreenPtr pScreen)
+{
+ winScreenPriv(pScreen);
+ winScreenInfo *pScreenInfo = pScreenPriv->pScreenInfo;
+ Bool fReturn;
+
+ winDebug ("winCloseScreenShadowGDI - Freeing screen resources\n");
+
+ /* 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) (nIndex, pScreen);
+
+ /* Delete the window property */
+ RemoveProp (pScreenPriv->hwndScreen, WIN_SCR_PROP);
+
+ /* Free the shadow DC; which allows the bitmap to be freed */
+ DeleteDC (pScreenPriv->hdcShadow);
+
+ winFreeFBShadowGDI(pScreen);
+
+ /* Free the screen DC */
+ ReleaseDC (pScreenPriv->hwndScreen, pScreenPriv->hdcScreen);
+
+ /* 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
+
+ /* Invalidate our screeninfo's pointer to the screen */
+ pScreenInfo->pScreen = 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
+winInitVisualsShadowGDI (ScreenPtr pScreen)
+{
+ winScreenPriv(pScreen);
+ winScreenInfo *pScreenInfo = pScreenPriv->pScreenInfo;
+
+ /* Display debugging information */
+ winDebug ("winInitVisualsShadowGDI - 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 ("winInitVisualsShadowGDI - miSetVisualTypesAndMasks "
+ "failed\n");
+ return FALSE;
+ }
+
+#ifdef XWIN_EMULATEPSEUDO
+ if (!pScreenInfo->fEmulatePseudo)
+ break;
+
+ /* Setup a pseudocolor visual */
+ if (!miSetVisualTypesAndMasks (8,
+ PseudoColorMask,
+ 8,
+ -1,
+ 0,
+ 0,
+ 0))
+ {
+ ErrorF ("winInitVisualsShadowGDI - miSetVisualTypesAndMasks "
+ "failed for PseudoColor\n");
+ return FALSE;
+ }
+#endif
+ break;
+
+ case 8:
+ if (!miSetVisualTypesAndMasks (pScreenInfo->dwDepth,
+ PseudoColorMask,
+ pScreenPriv->dwBitsPerRGB,
+ PseudoColor,
+ pScreenPriv->dwRedMask,
+ pScreenPriv->dwGreenMask,
+ pScreenPriv->dwBlueMask))
+ {
+ ErrorF ("winInitVisualsShadowGDI - miSetVisualTypesAndMasks "
+ "failed\n");
+ return FALSE;
+ }
+ break;
+
+ default:
+ ErrorF ("winInitVisualsShadowGDI - Unknown screen depth\n");
+ return FALSE;
+ }
+
+ winDebug ("winInitVisualsShadowGDI - Returning\n");
+
+ return TRUE;
+}
+
+
+/*
+ * Adjust the proposed video mode
+ */
+
+static Bool
+winAdjustVideoModeShadowGDI (ScreenPtr pScreen)
+{
+ winScreenPriv(pScreen);
+ winScreenInfo *pScreenInfo = pScreenPriv->pScreenInfo;
+ HDC hdc;
+ DWORD dwBPP;
+
+ hdc = GetDC (NULL);
+
+ /* We're in serious trouble if we can't get a DC */
+ if (hdc == NULL)
+ {
+ ErrorF ("winAdjustVideoModeShadowGDI - GetDC () failed\n");
+ return FALSE;
+ }
+
+ /* Query GDI for current display depth */
+ dwBPP = GetDeviceCaps (hdc, BITSPIXEL);
+
+ /* GDI cannot change the screen depth, so always use GDI's depth */
+ pScreenInfo->dwBPP = dwBPP;
+
+ /* Release our DC */
+ ReleaseDC (NULL, hdc);
+ hdc = NULL;
+
+ return TRUE;
+}
+
+
+/*
+ * Blt exposed regions to the screen
+ */
+
+static Bool
+winBltExposedRegionsShadowGDI (ScreenPtr pScreen)
+{
+ winScreenPriv(pScreen);
+ winScreenInfo *pScreenInfo = pScreenPriv->pScreenInfo;
+ winPrivCmapPtr pCmapPriv = NULL;
+ HDC hdcUpdate;
+ PAINTSTRUCT ps;
+
+ /* BeginPaint gives us an hdc that clips to the invalidated region */
+ hdcUpdate = BeginPaint (pScreenPriv->hwndScreen, &ps);
+
+ /* Realize the palette, if we have one */
+ if (pScreenPriv->pcmapInstalled != NULL)
+ {
+ pCmapPriv = winGetCmapPriv (pScreenPriv->pcmapInstalled);
+
+ SelectPalette (hdcUpdate, pCmapPriv->hPalette, FALSE);
+ RealizePalette (hdcUpdate);
+ }
+
+ /* Our BitBlt will be clipped to the invalidated region */
+ BitBlt (hdcUpdate,
+ 0, 0,
+ pScreenInfo->dwWidth, pScreenInfo->dwHeight,
+ pScreenPriv->hdcShadow,
+ 0, 0,
+ SRCCOPY);
+
+ /* EndPaint frees the DC */
+ EndPaint (pScreenPriv->hwndScreen, &ps);
+
+#ifdef XWIN_MULTIWINDOW
+ /* Redraw all windows */
+ if (pScreenInfo->fMultiWindow)
+ EnumThreadWindows(g_dwCurrentThreadID, winRedrawAllProcShadowGDI,
+ (LPARAM)pScreenPriv->hwndScreen);
+#endif
+
+ return TRUE;
+}
+
+
+/*
+ * Do any engine-specific appliation-activation processing
+ */
+
+static Bool
+winActivateAppShadowGDI (ScreenPtr pScreen)
+{
+ winScreenPriv(pScreen);
+ winScreenInfo *pScreenInfo = pScreenPriv->pScreenInfo;
+
+ /*
+ * 2004/04/12 - Harold - We perform the restoring or minimizing
+ * manually for ShadowGDI in fullscreen modes so that this engine
+ * will perform just like ShadowDD and ShadowDDNL in fullscreen mode;
+ * if we do not do this then our fullscreen window will appear in the
+ * z-order when it is deactivated and it can be uncovered by resizing
+ * or minimizing another window that is on top of it, which is not how
+ * the DirectDraw engines work. Therefore we keep this code here to
+ * make sure that all engines work the same in fullscreen mode.
+ */
+
+ /*
+ * Are we active?
+ * Are we fullscreen?
+ */
+ if (pScreenPriv->fActive
+ && pScreenInfo->fFullScreen)
+ {
+ /*
+ * Activating, attempt to bring our window
+ * to the top of the display
+ */
+ ShowWindow (pScreenPriv->hwndScreen, SW_RESTORE);
+ }
+ else if (!pScreenPriv->fActive
+ && pScreenInfo->fFullScreen)
+ {
+ /*
+ * Deactivating, stuff our window onto the
+ * task bar.
+ */
+ ShowWindow (pScreenPriv->hwndScreen, SW_MINIMIZE);
+ }
+
+ return TRUE;
+}
+
+
+/*
+ * Reblit the shadow framebuffer to the screen.
+ */
+
+static Bool
+winRedrawScreenShadowGDI (ScreenPtr pScreen)
+{
+ winScreenPriv(pScreen);
+ winScreenInfo *pScreenInfo = pScreenPriv->pScreenInfo;
+
+ /* Redraw the whole window, to take account for the new colors */
+ BitBlt (pScreenPriv->hdcScreen,
+ 0, 0,
+ pScreenInfo->dwWidth, pScreenInfo->dwHeight,
+ pScreenPriv->hdcShadow,
+ 0, 0,
+ SRCCOPY);
+
+#ifdef XWIN_MULTIWINDOW
+ /* Redraw all windows */
+ if (pScreenInfo->fMultiWindow)
+ EnumThreadWindows(g_dwCurrentThreadID, winRedrawAllProcShadowGDI, 0);
+#endif
+
+ return TRUE;
+}
+
+
+
+/*
+ * Realize the currently installed colormap
+ */
+
+static Bool
+winRealizeInstalledPaletteShadowGDI (ScreenPtr pScreen)
+{
+ winScreenPriv(pScreen);
+ winPrivCmapPtr pCmapPriv = NULL;
+
+ winDebug ("winRealizeInstalledPaletteShadowGDI\n");
+
+ /* Don't do anything if there is not a colormap */
+ if (pScreenPriv->pcmapInstalled == NULL)
+ {
+ winDebug ("winRealizeInstalledPaletteShadowGDI - No colormap "
+ "installed\n");
+ return TRUE;
+ }
+
+ pCmapPriv = winGetCmapPriv (pScreenPriv->pcmapInstalled);
+
+ /* Realize our palette for the screen */
+ if (RealizePalette (pScreenPriv->hdcScreen) == GDI_ERROR)
+ {
+ ErrorF ("winRealizeInstalledPaletteShadowGDI - RealizePalette () "
+ "failed\n");
+ return FALSE;
+ }
+
+ /* Set the DIB color table */
+ if (SetDIBColorTable (pScreenPriv->hdcShadow,
+ 0,
+ WIN_NUM_PALETTE_ENTRIES,
+ pCmapPriv->rgbColors) == 0)
+ {
+ ErrorF ("winRealizeInstalledPaletteShadowGDI - SetDIBColorTable () "
+ "failed\n");
+ return FALSE;
+ }
+
+ return TRUE;
+}
+
+
+/*
+ * Install the specified colormap
+ */
+
+static Bool
+winInstallColormapShadowGDI (ColormapPtr pColormap)
+{
+ ScreenPtr pScreen = pColormap->pScreen;
+ winScreenPriv(pScreen);
+ winScreenInfo *pScreenInfo = pScreenPriv->pScreenInfo;
+ winCmapPriv(pColormap);
+
+ /*
+ * Tell Windows to install the new colormap
+ */
+ if (SelectPalette (pScreenPriv->hdcScreen,
+ pCmapPriv->hPalette,
+ FALSE) == NULL)
+ {
+ ErrorF ("winInstallColormapShadowGDI - SelectPalette () failed\n");
+ return FALSE;
+ }
+
+ /* Realize the palette */
+ if (GDI_ERROR == RealizePalette (pScreenPriv->hdcScreen))
+ {
+ ErrorF ("winInstallColormapShadowGDI - RealizePalette () failed\n");
+ return FALSE;
+ }
+
+ /* Set the DIB color table */
+ if (SetDIBColorTable (pScreenPriv->hdcShadow,
+ 0,
+ WIN_NUM_PALETTE_ENTRIES,
+ pCmapPriv->rgbColors) == 0)
+ {
+ ErrorF ("winInstallColormapShadowGDI - SetDIBColorTable () failed\n");
+ return FALSE;
+ }
+
+ /* Redraw the whole window, to take account for the new colors */
+ BitBlt (pScreenPriv->hdcScreen,
+ 0, 0,
+ pScreenInfo->dwWidth, pScreenInfo->dwHeight,
+ pScreenPriv->hdcShadow,
+ 0, 0,
+ SRCCOPY);
+
+ /* Save a pointer to the newly installed colormap */
+ pScreenPriv->pcmapInstalled = pColormap;
+
+#ifdef XWIN_MULTIWINDOW
+ /* Redraw all windows */
+ if (pScreenInfo->fMultiWindow)
+ EnumThreadWindows (g_dwCurrentThreadID, winRedrawAllProcShadowGDI, 0);
+#endif
+
+ return TRUE;
+}
+
+
+/*
+ * Store the specified colors in the specified colormap
+ */
+
+static Bool
+winStoreColorsShadowGDI (ColormapPtr pColormap,
+ int ndef,
+ xColorItem *pdefs)
+{
+ ScreenPtr pScreen = pColormap->pScreen;
+ winScreenPriv(pScreen);
+ winCmapPriv(pColormap);
+ ColormapPtr curpmap = pScreenPriv->pcmapInstalled;
+
+ /* Put the X colormap entries into the Windows logical palette */
+ if (SetPaletteEntries (pCmapPriv->hPalette,
+ pdefs[0].pixel,
+ ndef,
+ pCmapPriv->peColors + pdefs[0].pixel) == 0)
+ {
+ ErrorF ("winStoreColorsShadowGDI - SetPaletteEntries () failed\n");
+ return FALSE;
+ }
+
+ /* Don't install the Windows palette if the colormap is not installed */
+ if (pColormap != curpmap)
+ {
+ return TRUE;
+ }
+
+ /* Try to install the newly modified colormap */
+ if (!winInstallColormapShadowGDI (pColormap))
+ {
+ ErrorF ("winInstallColormapShadowGDI - winInstallColormapShadowGDI "
+ "failed\n");
+ return FALSE;
+ }
+
+#if 0
+ /* Tell Windows that the palette has changed */
+ RealizePalette (pScreenPriv->hdcScreen);
+
+ /* Set the DIB color table */
+ if (SetDIBColorTable (pScreenPriv->hdcShadow,
+ pdefs[0].pixel,
+ ndef,
+ pCmapPriv->rgbColors + pdefs[0].pixel) == 0)
+ {
+ ErrorF ("winInstallColormapShadowGDI - SetDIBColorTable () failed\n");
+ return FALSE;
+ }
+
+ /* Save a pointer to the newly installed colormap */
+ pScreenPriv->pcmapInstalled = pColormap;
+#endif
+
+ return TRUE;
+}
+
+
+/*
+ * Colormap initialization procedure
+ */
+
+static Bool
+winCreateColormapShadowGDI (ColormapPtr pColormap)
+{
+ LPLOGPALETTE lpPaletteNew = NULL;
+ DWORD dwEntriesMax;
+ VisualPtr pVisual;
+ HPALETTE hpalNew = NULL;
+ winCmapPriv(pColormap);
+
+ /* Get a pointer to the visual that the colormap belongs to */
+ pVisual = pColormap->pVisual;
+
+ /* Get the maximum number of palette entries for this visual */
+ dwEntriesMax = pVisual->ColormapEntries;
+
+ /* Allocate a Windows logical color palette with max entries */
+ lpPaletteNew = malloc (sizeof (LOGPALETTE)
+ + (dwEntriesMax - 1) * sizeof (PALETTEENTRY));
+ if (lpPaletteNew == NULL)
+ {
+ ErrorF ("winCreateColormapShadowGDI - Couldn't allocate palette "
+ "with %d entries\n",
+ (int) dwEntriesMax);
+ return FALSE;
+ }
+
+ /* Zero out the colormap */
+ ZeroMemory (lpPaletteNew, sizeof (LOGPALETTE)
+ + (dwEntriesMax - 1) * sizeof (PALETTEENTRY));
+
+ /* Set the logical palette structure */
+ lpPaletteNew->palVersion = 0x0300;
+ lpPaletteNew->palNumEntries = dwEntriesMax;
+
+ /* Tell Windows to create the palette */
+ hpalNew = CreatePalette (lpPaletteNew);
+ if (hpalNew == NULL)
+ {
+ ErrorF ("winCreateColormapShadowGDI - CreatePalette () failed\n");
+ free (lpPaletteNew);
+ return FALSE;
+ }
+
+ /* Save the Windows logical palette handle in the X colormaps' privates */
+ pCmapPriv->hPalette = hpalNew;
+
+ /* Free the palette initialization memory */
+ free (lpPaletteNew);
+
+ return TRUE;
+}
+
+
+/*
+ * Colormap destruction procedure
+ */
+
+static Bool
+winDestroyColormapShadowGDI (ColormapPtr pColormap)
+{
+ winScreenPriv(pColormap->pScreen);
+ winCmapPriv(pColormap);
+
+ /*
+ * 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)
+ {
+ winDebug ("winDestroyColormapShadowGDI - Destroying default "
+ "colormap\n");
+
+ /*
+ * FIXME: Walk the list of all screens, popping the default
+ * palette out of each screen device context.
+ */
+
+ /* Pop the palette out of the device context */
+ SelectPalette (pScreenPriv->hdcScreen,
+ GetStockObject (DEFAULT_PALETTE),
+ FALSE);
+
+ /* Clear our private installed colormap pointer */
+ pScreenPriv->pcmapInstalled = NULL;
+ }
+
+ /* Try to delete the logical palette */
+ if (DeleteObject (pCmapPriv->hPalette) == 0)
+ {
+ ErrorF ("winDestroyColormap - DeleteObject () failed\n");
+ return FALSE;
+ }
+
+ /* Invalidate the colormap privates */
+ pCmapPriv->hPalette = NULL;
+
+ return TRUE;
+}
+
+
+/*
+ * Set engine specific funtions
+ */
+
+Bool
+winSetEngineFunctionsShadowGDI (ScreenPtr pScreen)
+{
+ winScreenPriv(pScreen);
+ winScreenInfo *pScreenInfo = pScreenPriv->pScreenInfo;
+
+ /* Set our pointers */
+ pScreenPriv->pwinAllocateFB = winAllocateFBShadowGDI;
+ pScreenPriv->pwinFreeFB = winFreeFBShadowGDI;
+ pScreenPriv->pwinShadowUpdate = winShadowUpdateGDI;
+ pScreenPriv->pwinInitScreen = winInitScreenShadowGDI;
+ pScreenPriv->pwinCloseScreen = winCloseScreenShadowGDI;
+ pScreenPriv->pwinInitVisuals = winInitVisualsShadowGDI;
+ pScreenPriv->pwinAdjustVideoMode = winAdjustVideoModeShadowGDI;
+ if (pScreenInfo->fFullScreen)
+ pScreenPriv->pwinCreateBoundingWindow = winCreateBoundingWindowFullScreen;
+ else
+ pScreenPriv->pwinCreateBoundingWindow = winCreateBoundingWindowWindowed;
+ pScreenPriv->pwinFinishScreenInit = winFinishScreenInitFB;
+ pScreenPriv->pwinBltExposedRegions = winBltExposedRegionsShadowGDI;
+ pScreenPriv->pwinActivateApp = winActivateAppShadowGDI;
+ pScreenPriv->pwinRedrawScreen = winRedrawScreenShadowGDI;
+ pScreenPriv->pwinRealizeInstalledPalette =
+ winRealizeInstalledPaletteShadowGDI;
+ pScreenPriv->pwinInstallColormap = winInstallColormapShadowGDI;
+ pScreenPriv->pwinStoreColors = winStoreColorsShadowGDI;
+ pScreenPriv->pwinCreateColormap = winCreateColormapShadowGDI;
+ pScreenPriv->pwinDestroyColormap = winDestroyColormapShadowGDI;
+ pScreenPriv->pwinHotKeyAltTab = (winHotKeyAltTabProcPtr) (void (*)(void))NoopDDA;
+ pScreenPriv->pwinCreatePrimarySurface
+ = (winCreatePrimarySurfaceProcPtr) (void (*)(void))NoopDDA;
+ pScreenPriv->pwinReleasePrimarySurface
+ = (winReleasePrimarySurfaceProcPtr) (void (*)(void))NoopDDA;
+#ifdef XWIN_MULTIWINDOW
+ pScreenPriv->pwinFinishCreateWindowsWindow =
+ (winFinishCreateWindowsWindowProcPtr) (void (*)(void))NoopDDA;
+#endif
+
+ return TRUE;
+}
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-27 12:31:59 +0000