/* * midispcur.c * * machine independent cursor display routines */ /* Copyright 1989, 1998 The Open Group Permission to use, copy, modify, distribute, and sell this software and its documentation for any purpose is hereby granted without fee, provided that the above copyright notice appear in all copies and that both that copyright notice and this permission notice appear in supporting documentation. 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 OPEN GROUP 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 Open Group 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 Open Group. */ #ifdef HAVE_DIX_CONFIG_H #include <dix-config.h> #endif # include <X11/X.h> # include "misc.h" # include "input.h" # include "cursorstr.h" # include "windowstr.h" # include "regionstr.h" # include "dixstruct.h" # include "scrnintstr.h" # include "servermd.h" # include "mipointer.h" # include "misprite.h" # include "gcstruct.h" #ifdef ARGB_CURSOR # include "picturestr.h" #endif # include "inputstr.h" /* per-screen private data */ static DevPrivateKeyRec miDCScreenKeyRec; #define miDCScreenKey (&miDCScreenKeyRec) static Bool miDCCloseScreen(int index, ScreenPtr pScreen); /* per device private data */ typedef struct { GCPtr pSourceGC, pMaskGC; GCPtr pSaveGC, pRestoreGC; PixmapPtr pSave; #ifdef ARGB_CURSOR PicturePtr pRootPicture; #endif } miDCBufferRec, *miDCBufferPtr; #define miGetDCDevice(dev, screen) \ ((DevHasCursor(dev)) ? \ (miDCBufferPtr)dixLookupPrivate(&dev->devPrivates, miDCDeviceKey(screen)) : \ (miDCBufferPtr)dixLookupPrivate(&dev->u.master->devPrivates, miDCDeviceKey(screen))) /* * The core pointer buffer will point to the index of the virtual core pointer * in the pCursorBuffers array. */ typedef struct { CloseScreenProcPtr CloseScreen; DevPrivateKey device_key; DevPrivateKey cursor_bits_key; } miDCScreenRec, *miDCScreenPtr; #define miGetDCScreen(s) ((miDCScreenPtr)(dixLookupPrivate(&(s)->devPrivates, miDCScreenKey))) #define miDCDeviceKey(s) (miGetDCScreen(s)->device_key) #define miDCCursorBitsKey(s) (miGetDCScreen(s)->cursor_bits_key) /* per-cursor per-screen private data */ typedef struct { PixmapPtr sourceBits; /* source bits */ PixmapPtr maskBits; /* mask bits */ #ifdef ARGB_CURSOR PicturePtr pPicture; #endif } miDCCursorRec, *miDCCursorPtr; Bool miDCInitialize (ScreenPtr pScreen, miPointerScreenFuncPtr screenFuncs) { miDCScreenPtr pScreenPriv; if (!dixRegisterPrivateKey(&miDCScreenKeyRec, PRIVATE_SCREEN, 0)) return FALSE; pScreenPriv = malloc(sizeof (miDCScreenRec)); if (!pScreenPriv) return FALSE; pScreenPriv->cursor_bits_key = dixCreatePrivateKey(PRIVATE_CURSOR_BITS, 0); pScreenPriv->device_key = dixCreatePrivateKey(PRIVATE_DEVICE, 0); if (!pScreenPriv->cursor_bits_key || !pScreenPriv->device_key) { free(pScreenPriv); return FALSE; } pScreenPriv->CloseScreen = pScreen->CloseScreen; pScreen->CloseScreen = miDCCloseScreen; dixSetPrivate(&pScreen->devPrivates, miDCScreenKey, pScreenPriv); if (!miSpriteInitialize (pScreen, screenFuncs)) { free((pointer) pScreenPriv); return FALSE; } return TRUE; } static Bool miDCCloseScreen (int index, ScreenPtr pScreen) { miDCScreenPtr pScreenPriv; pScreenPriv = (miDCScreenPtr)dixLookupPrivate(&pScreen->devPrivates, miDCScreenKey); pScreen->CloseScreen = pScreenPriv->CloseScreen; free((pointer) pScreenPriv); return (*pScreen->CloseScreen) (index, pScreen); } Bool miDCRealizeCursor (ScreenPtr pScreen, CursorPtr pCursor) { if (pCursor->bits->refcnt <= 1) dixSetPrivate(&pCursor->bits->devPrivates, miDCCursorBitsKey(pScreen), NULL); return TRUE; } #ifdef ARGB_CURSOR #define EnsurePicture(picture,draw,win) (picture || miDCMakePicture(&picture,draw,win)) static VisualPtr miDCGetWindowVisual (WindowPtr pWin) { ScreenPtr pScreen = pWin->drawable.pScreen; VisualID vid = wVisual (pWin); int i; for (i = 0; i < pScreen->numVisuals; i++) if (pScreen->visuals[i].vid == vid) return &pScreen->visuals[i]; return 0; } static PicturePtr miDCMakePicture (PicturePtr *ppPicture, DrawablePtr pDraw, WindowPtr pWin) { ScreenPtr pScreen = pDraw->pScreen; VisualPtr pVisual; PictFormatPtr pFormat; XID subwindow_mode = IncludeInferiors; PicturePtr pPicture; int error; pVisual = miDCGetWindowVisual (pWin); if (!pVisual) return 0; pFormat = PictureMatchVisual (pScreen, pDraw->depth, pVisual); if (!pFormat) return 0; pPicture = CreatePicture (0, pDraw, pFormat, CPSubwindowMode, &subwindow_mode, serverClient, &error); *ppPicture = pPicture; return pPicture; } #endif static miDCCursorPtr miDCRealize (ScreenPtr pScreen, CursorPtr pCursor) { miDCCursorPtr pPriv; GCPtr pGC; ChangeGCVal gcvals; pPriv = malloc(sizeof (miDCCursorRec)); if (!pPriv) return NULL; #ifdef ARGB_CURSOR if (pCursor->bits->argb) { PixmapPtr pPixmap; PictFormatPtr pFormat; int error; pFormat = PictureMatchFormat (pScreen, 32, PICT_a8r8g8b8); if (!pFormat) { free((pointer) pPriv); return NULL; } pPriv->sourceBits = 0; pPriv->maskBits = 0; pPixmap = (*pScreen->CreatePixmap) (pScreen, pCursor->bits->width, pCursor->bits->height, 32, CREATE_PIXMAP_USAGE_SCRATCH); if (!pPixmap) { free((pointer) pPriv); return NULL; } pGC = GetScratchGC (32, pScreen); if (!pGC) { (*pScreen->DestroyPixmap) (pPixmap); free((pointer) pPriv); return NULL; } ValidateGC (&pPixmap->drawable, pGC); (*pGC->ops->PutImage) (&pPixmap->drawable, pGC, 32, 0, 0, pCursor->bits->width, pCursor->bits->height, 0, ZPixmap, (char *) pCursor->bits->argb); FreeScratchGC (pGC); pPriv->pPicture = CreatePicture (0, &pPixmap->drawable, pFormat, 0, 0, serverClient, &error); (*pScreen->DestroyPixmap) (pPixmap); if (!pPriv->pPicture) { free((pointer) pPriv); return NULL; } dixSetPrivate(&pCursor->bits->devPrivates, miDCCursorBitsKey(pScreen), pPriv); return pPriv; } pPriv->pPicture = 0; #endif pPriv->sourceBits = (*pScreen->CreatePixmap) (pScreen, pCursor->bits->width, pCursor->bits->height, 1, 0); if (!pPriv->sourceBits) { free((pointer) pPriv); return NULL; } pPriv->maskBits = (*pScreen->CreatePixmap) (pScreen, pCursor->bits->width, pCursor->bits->height, 1, 0); if (!pPriv->maskBits) { (*pScreen->DestroyPixmap) (pPriv->sourceBits); free((pointer) pPriv); return NULL; } dixSetPrivate(&pCursor->bits->devPrivates, miDCCursorBitsKey(pScreen), pPriv); /* create the two sets of bits, clipping as appropriate */ pGC = GetScratchGC (1, pScreen); if (!pGC) { (void) miDCUnrealizeCursor (pScreen, pCursor); return NULL; } ValidateGC ((DrawablePtr)pPriv->sourceBits, pGC); (*pGC->ops->PutImage) ((DrawablePtr)pPriv->sourceBits, pGC, 1, 0, 0, pCursor->bits->width, pCursor->bits->height, 0, XYPixmap, (char *)pCursor->bits->source); gcvals.val = GXand; ChangeGC (NullClient, pGC, GCFunction, &gcvals); ValidateGC ((DrawablePtr)pPriv->sourceBits, pGC); (*pGC->ops->PutImage) ((DrawablePtr)pPriv->sourceBits, pGC, 1, 0, 0, pCursor->bits->width, pCursor->bits->height, 0, XYPixmap, (char *)pCursor->bits->mask); /* mask bits -- pCursor->mask & ~pCursor->source */ gcvals.val = GXcopy; ChangeGC (NullClient, pGC, GCFunction, &gcvals); ValidateGC ((DrawablePtr)pPriv->maskBits, pGC); (*pGC->ops->PutImage) ((DrawablePtr)pPriv->maskBits, pGC, 1, 0, 0, pCursor->bits->width, pCursor->bits->height, 0, XYPixmap, (char *)pCursor->bits->mask); gcvals.val = GXandInverted; ChangeGC (NullClient, pGC, GCFunction, &gcvals); ValidateGC ((DrawablePtr)pPriv->maskBits, pGC); (*pGC->ops->PutImage) ((DrawablePtr)pPriv->maskBits, pGC, 1, 0, 0, pCursor->bits->width, pCursor->bits->height, 0, XYPixmap, (char *)pCursor->bits->source); FreeScratchGC (pGC); return pPriv; } Bool miDCUnrealizeCursor (ScreenPtr pScreen, CursorPtr pCursor) { miDCCursorPtr pPriv; pPriv = (miDCCursorPtr)dixLookupPrivate(&pCursor->bits->devPrivates, miDCCursorBitsKey(pScreen)); if (pPriv && (pCursor->bits->refcnt <= 1)) { if (pPriv->sourceBits) (*pScreen->DestroyPixmap) (pPriv->sourceBits); if (pPriv->maskBits) (*pScreen->DestroyPixmap) (pPriv->maskBits); #ifdef ARGB_CURSOR if (pPriv->pPicture) FreePicture (pPriv->pPicture, 0); #endif free((pointer) pPriv); dixSetPrivate(&pCursor->bits->devPrivates, miDCCursorBitsKey(pScreen), NULL); } return TRUE; } static void miDCPutBits ( DrawablePtr pDrawable, miDCCursorPtr pPriv, GCPtr sourceGC, GCPtr maskGC, int x_org, int y_org, unsigned w, unsigned h, unsigned long source, unsigned long mask) { ChangeGCVal gcval; int x, y; if (sourceGC->fgPixel != source) { gcval.val = source; ChangeGC (NullClient, sourceGC, GCForeground, &gcval); } if (sourceGC->serialNumber != pDrawable->serialNumber) ValidateGC (pDrawable, sourceGC); if(sourceGC->miTranslate) { x = pDrawable->x + x_org; y = pDrawable->y + y_org; } else { x = x_org; y = y_org; } (*sourceGC->ops->PushPixels) (sourceGC, pPriv->sourceBits, pDrawable, w, h, x, y); if (maskGC->fgPixel != mask) { gcval.val = mask; ChangeGC (NullClient, maskGC, GCForeground, &gcval); } if (maskGC->serialNumber != pDrawable->serialNumber) ValidateGC (pDrawable, maskGC); if(maskGC->miTranslate) { x = pDrawable->x + x_org; y = pDrawable->y + y_org; } else { x = x_org; y = y_org; } (*maskGC->ops->PushPixels) (maskGC, pPriv->maskBits, pDrawable, w, h, x, y); } static GCPtr miDCMakeGC(WindowPtr pWin) { GCPtr pGC; int status; XID gcvals[2]; gcvals[0] = IncludeInferiors; gcvals[1] = FALSE; pGC = CreateGC((DrawablePtr)pWin, GCSubwindowMode|GCGraphicsExposures, gcvals, &status, (XID)0, serverClient); return pGC; } Bool miDCPutUpCursor (DeviceIntPtr pDev, ScreenPtr pScreen, CursorPtr pCursor, int x, int y, unsigned long source, unsigned long mask) { miDCScreenPtr pScreenPriv; miDCCursorPtr pPriv; miDCBufferPtr pBuffer; WindowPtr pWin; pPriv = (miDCCursorPtr)dixLookupPrivate(&pCursor->bits->devPrivates, miDCCursorBitsKey(pScreen)); if (!pPriv) { pPriv = miDCRealize(pScreen, pCursor); if (!pPriv) return FALSE; } pScreenPriv = (miDCScreenPtr)dixLookupPrivate(&pScreen->devPrivates, miDCScreenKey); pWin = pScreen->root; pBuffer = miGetDCDevice(pDev, pScreen); #ifdef ARGB_CURSOR if (pPriv->pPicture) { if (!EnsurePicture(pBuffer->pRootPicture, &pWin->drawable, pWin)) return FALSE; CompositePicture (PictOpOver, pPriv->pPicture, NULL, pBuffer->pRootPicture, 0, 0, 0, 0, x, y, pCursor->bits->width, pCursor->bits->height); } else #endif { miDCPutBits ((DrawablePtr)pWin, pPriv, pBuffer->pSourceGC, pBuffer->pMaskGC, x, y, pCursor->bits->width, pCursor->bits->height, source, mask); } return TRUE; } Bool miDCSaveUnderCursor (DeviceIntPtr pDev, ScreenPtr pScreen, int x, int y, int w, int h) { miDCScreenPtr pScreenPriv; miDCBufferPtr pBuffer; PixmapPtr pSave; WindowPtr pWin; GCPtr pGC; pScreenPriv = (miDCScreenPtr)dixLookupPrivate(&pScreen->devPrivates, miDCScreenKey); pBuffer = miGetDCDevice(pDev, pScreen); pSave = pBuffer->pSave; pWin = pScreen->root; if (!pSave || pSave->drawable.width < w || pSave->drawable.height < h) { if (pSave) (*pScreen->DestroyPixmap) (pSave); pBuffer->pSave = pSave = (*pScreen->CreatePixmap) (pScreen, w, h, pScreen->rootDepth, 0); if (!pSave) return FALSE; } pGC = pBuffer->pSaveGC; if (pSave->drawable.serialNumber != pGC->serialNumber) ValidateGC ((DrawablePtr) pSave, pGC); (*pGC->ops->CopyArea) ((DrawablePtr) pWin, (DrawablePtr) pSave, pGC, x, y, w, h, 0, 0); return TRUE; } Bool miDCRestoreUnderCursor (DeviceIntPtr pDev, ScreenPtr pScreen, int x, int y, int w, int h) { miDCScreenPtr pScreenPriv; miDCBufferPtr pBuffer; PixmapPtr pSave; WindowPtr pWin; GCPtr pGC; pScreenPriv = (miDCScreenPtr)dixLookupPrivate(&pScreen->devPrivates, miDCScreenKey); pBuffer = miGetDCDevice(pDev, pScreen); pSave = pBuffer->pSave; pWin = pScreen->root; if (!pSave) return FALSE; pGC = pBuffer->pRestoreGC; if (pWin->drawable.serialNumber != pGC->serialNumber) ValidateGC ((DrawablePtr) pWin, pGC); (*pGC->ops->CopyArea) ((DrawablePtr) pSave, (DrawablePtr) pWin, pGC, 0, 0, w, h, x, y); return TRUE; } Bool miDCDeviceInitialize(DeviceIntPtr pDev, ScreenPtr pScreen) { miDCBufferPtr pBuffer; WindowPtr pWin; int i; if (!DevHasCursor(pDev)) return TRUE; for (i = 0; i < screenInfo.numScreens; i++) { pScreen = screenInfo.screens[i]; pBuffer = calloc(1, sizeof(miDCBufferRec)); if (!pBuffer) goto failure; dixSetPrivate(&pDev->devPrivates, miDCDeviceKey(pScreen), pBuffer); pWin = pScreen->root; pBuffer->pSourceGC = miDCMakeGC(pWin); if (!pBuffer->pSourceGC) goto failure; pBuffer->pMaskGC = miDCMakeGC(pWin); if (!pBuffer->pMaskGC) goto failure; pBuffer->pSaveGC = miDCMakeGC(pWin); if (!pBuffer->pSaveGC) goto failure; pBuffer->pRestoreGC = miDCMakeGC(pWin); if (!pBuffer->pRestoreGC) goto failure; #ifdef ARGB_CURSOR pBuffer->pRootPicture = NULL; #endif /* (re)allocated lazily depending on the cursor size */ pBuffer->pSave = NULL; } return TRUE; failure: miDCDeviceCleanup(pDev, pScreen); return FALSE; } void miDCDeviceCleanup(DeviceIntPtr pDev, ScreenPtr pScreen) { miDCBufferPtr pBuffer; int i; if (DevHasCursor(pDev)) { for (i = 0; i < screenInfo.numScreens; i++) { pScreen = screenInfo.screens[i]; pBuffer = miGetDCDevice(pDev, pScreen); if (pBuffer) { if (pBuffer->pSourceGC) FreeGC(pBuffer->pSourceGC, (GContext) 0); if (pBuffer->pMaskGC) FreeGC(pBuffer->pMaskGC, (GContext) 0); if (pBuffer->pSaveGC) FreeGC(pBuffer->pSaveGC, (GContext) 0); if (pBuffer->pRestoreGC) FreeGC(pBuffer->pRestoreGC, (GContext) 0); #ifdef ARGB_CURSOR /* If a pRootPicture was allocated for a root window, it * is freed when that root window is destroyed, so don't * free it again here. */ #endif if (pBuffer->pSave) (*pScreen->DestroyPixmap)(pBuffer->pSave); free(pBuffer); dixSetPrivate(&pDev->devPrivates, miDCDeviceKey(pScreen), NULL); } } } }