diff options
Diffstat (limited to 'xorg-server/hw/vfb')
| -rw-r--r-- | xorg-server/hw/vfb/InitOutput.c | 1946 |
1 files changed, 973 insertions, 973 deletions
diff --git a/xorg-server/hw/vfb/InitOutput.c b/xorg-server/hw/vfb/InitOutput.c index 29857877e..30e68e5d3 100644 --- a/xorg-server/hw/vfb/InitOutput.c +++ b/xorg-server/hw/vfb/InitOutput.c @@ -1,973 +1,973 @@ -/* - -Copyright 1993, 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 - -#if defined(WIN32) -#include <X11/Xwinsock.h> -#endif -#include <stdio.h> -#include <X11/X.h> -#include <X11/Xproto.h> -#include <X11/Xos.h> -#include "scrnintstr.h" -#include "servermd.h" -#define PSZ 8 -#include "fb.h" -#include "mibstore.h" -#include "colormapst.h" -#include "gcstruct.h" -#include "input.h" -#include "mipointer.h" -#include "micmap.h" -#include <sys/types.h> -#ifdef HAS_MMAP -#include <sys/mman.h> -#ifndef MAP_FILE -#define MAP_FILE 0 -#endif -#endif /* HAS_MMAP */ -#include <sys/stat.h> -#include <errno.h> -#ifndef WIN32 -#include <sys/param.h> -#endif -#include <X11/XWDFile.h> -#ifdef HAS_SHM -#include <sys/ipc.h> -#include <sys/shm.h> -#endif /* HAS_SHM */ -#include "dix.h" -#include "miline.h" - -#define VFB_DEFAULT_WIDTH 1280 -#define VFB_DEFAULT_HEIGHT 1024 -#define VFB_DEFAULT_DEPTH 8 -#define VFB_DEFAULT_WHITEPIXEL 1 -#define VFB_DEFAULT_BLACKPIXEL 0 -#define VFB_DEFAULT_LINEBIAS 0 -#define XWD_WINDOW_NAME_LEN 60 - -typedef struct -{ - int width; - int paddedBytesWidth; - int paddedWidth; - int height; - int depth; - int bitsPerPixel; - int sizeInBytes; - int ncolors; - char *pfbMemory; - XWDColor *pXWDCmap; - XWDFileHeader *pXWDHeader; - Pixel blackPixel; - Pixel whitePixel; - unsigned int lineBias; - CloseScreenProcPtr closeScreen; - -#ifdef HAS_MMAP - int mmap_fd; - char mmap_file[MAXPATHLEN]; -#endif - -#ifdef HAS_SHM - int shmid; -#endif -} vfbScreenInfo, *vfbScreenInfoPtr; - -static int vfbNumScreens; -static vfbScreenInfo *vfbScreens; -static vfbScreenInfo defaultScreenInfo = { - .width = VFB_DEFAULT_WIDTH, - .height = VFB_DEFAULT_HEIGHT, - .depth = VFB_DEFAULT_DEPTH, - .blackPixel = VFB_DEFAULT_BLACKPIXEL, - .whitePixel = VFB_DEFAULT_WHITEPIXEL, - .lineBias = VFB_DEFAULT_LINEBIAS, -}; -static Bool vfbPixmapDepths[33]; -#ifdef HAS_MMAP -static char *pfbdir = NULL; -#endif -typedef enum { NORMAL_MEMORY_FB, SHARED_MEMORY_FB, MMAPPED_FILE_FB } fbMemType; -static fbMemType fbmemtype = NORMAL_MEMORY_FB; -static char needswap = 0; -static Bool Render = TRUE; - -#define swapcopy16(_dst, _src) \ - if (needswap) { CARD16 _s = _src; cpswaps(_s, _dst); } \ - else _dst = _src; - -#define swapcopy32(_dst, _src) \ - if (needswap) { CARD32 _s = _src; cpswapl(_s, _dst); } \ - else _dst = _src; - - -static void -vfbInitializePixmapDepths(void) -{ - int i; - vfbPixmapDepths[1] = TRUE; /* always need bitmaps */ - for (i = 2; i <= 32; i++) - vfbPixmapDepths[i] = FALSE; -} - -static int -vfbBitsPerPixel(int depth) -{ - if (depth == 1) return 1; - else if (depth <= 8) return 8; - else if (depth <= 16) return 16; - else return 32; -} - -void -ddxGiveUp(void) -{ - int i; - - /* clean up the framebuffers */ - - switch (fbmemtype) - { -#ifdef HAS_MMAP - case MMAPPED_FILE_FB: - for (i = 0; i < vfbNumScreens; i++) - { - if (-1 == unlink(vfbScreens[i].mmap_file)) - { - perror("unlink"); - ErrorF("unlink %s failed, %s", - vfbScreens[i].mmap_file, strerror(errno)); - } - } - break; -#else /* HAS_MMAP */ - case MMAPPED_FILE_FB: - break; -#endif /* HAS_MMAP */ - -#ifdef HAS_SHM - case SHARED_MEMORY_FB: - for (i = 0; i < vfbNumScreens; i++) - { - if (-1 == shmdt((char *)vfbScreens[i].pXWDHeader)) - { - perror("shmdt"); - ErrorF("shmdt failed, %s", strerror(errno)); - } - } - break; -#else /* HAS_SHM */ - case SHARED_MEMORY_FB: - break; -#endif /* HAS_SHM */ - - case NORMAL_MEMORY_FB: - for (i = 0; i < vfbNumScreens; i++) - { - Xfree(vfbScreens[i].pXWDHeader); - } - break; - } -} - -void -AbortDDX(void) -{ - ddxGiveUp(); -} - -#ifdef __APPLE__ -void -DarwinHandleGUI(int argc, char *argv[]) -{ -} -#endif - -void -OsVendorInit(void) -{ -} - -void -OsVendorFatalError(void) -{ -} - -#if defined(DDXBEFORERESET) -void ddxBeforeReset(void) -{ - return; -} -#endif - -void -ddxUseMsg(void) -{ - ErrorF("-screen scrn WxHxD set screen's width, height, depth\n"); - ErrorF("-pixdepths list-of-int support given pixmap depths\n"); - ErrorF("+/-render turn on/off RENDER extension support" - "(default on)\n"); - ErrorF("-linebias n adjust thin line pixelization\n"); - ErrorF("-blackpixel n pixel value for black\n"); - ErrorF("-whitepixel n pixel value for white\n"); - -#ifdef HAS_MMAP - ErrorF("-fbdir directory put framebuffers in mmap'ed files in directory\n"); -#endif - -#ifdef HAS_SHM - ErrorF("-shmem put framebuffers in shared memory\n"); -#endif -} - -int -ddxProcessArgument(int argc, char *argv[], int i) -{ - static Bool firstTime = TRUE; - static int lastScreen = -1; - vfbScreenInfo *currentScreen; - - if (firstTime) - { - vfbInitializePixmapDepths(); - firstTime = FALSE; - } - - if (lastScreen == -1) - currentScreen = &defaultScreenInfo; - else - currentScreen = &vfbScreens[lastScreen]; - -#define CHECK_FOR_REQUIRED_ARGUMENTS(num) \ - if (((i + num) >= argc) || (!argv[i + num])) { \ - ErrorF("Required argument to %s not specified\n", argv[i]); \ - UseMsg(); \ - FatalError("Required argument to %s not specified\n", argv[i]); \ - } - - if (strcmp (argv[i], "-screen") == 0) /* -screen n WxHxD */ - { - int screenNum; - CHECK_FOR_REQUIRED_ARGUMENTS(2); - screenNum = atoi(argv[i+1]); - if (screenNum < 0) - { - ErrorF("Invalid screen number %d\n", screenNum); - UseMsg(); - FatalError("Invalid screen number %d passed to -screen\n", - screenNum); - } - - if (vfbNumScreens <= screenNum) - { - vfbScreens = xrealloc(vfbScreens, sizeof(*vfbScreens) * (screenNum + 1)); - if (!vfbScreens) - FatalError("Not enough memory for screen %d\n", screenNum); - for (; vfbNumScreens <= screenNum; ++vfbNumScreens) - vfbScreens[vfbNumScreens] = defaultScreenInfo; - } - - if (3 != sscanf(argv[i+2], "%dx%dx%d", - &vfbScreens[screenNum].width, - &vfbScreens[screenNum].height, - &vfbScreens[screenNum].depth)) - { - ErrorF("Invalid screen configuration %s\n", argv[i+2]); - UseMsg(); - FatalError("Invalid screen configuration %s for -screen %d\n", - argv[i+2], screenNum); - } - - lastScreen = screenNum; - return 3; - } - - if (strcmp (argv[i], "-pixdepths") == 0) /* -pixdepths list-of-depth */ - { - int depth, ret = 1; - - CHECK_FOR_REQUIRED_ARGUMENTS(1); - while ((++i < argc) && (depth = atoi(argv[i])) != 0) - { - if (depth < 0 || depth > 32) - { - ErrorF("Invalid pixmap depth %d\n", depth); - UseMsg(); - FatalError("Invalid pixmap depth %d passed to -pixdepths\n", - depth); - } - vfbPixmapDepths[depth] = TRUE; - ret++; - } - return ret; - } - - if (strcmp (argv[i], "+render") == 0) /* +render */ - { - Render = TRUE; - return 1; - } - - if (strcmp (argv[i], "-render") == 0) /* -render */ - { - Render = FALSE; -#ifdef COMPOSITE - noCompositeExtension = TRUE; -#endif - return 1; - } - - if (strcmp (argv[i], "-blackpixel") == 0) /* -blackpixel n */ - { - CHECK_FOR_REQUIRED_ARGUMENTS(1); - currentScreen->blackPixel = atoi(argv[++i]); - return 2; - } - - if (strcmp (argv[i], "-whitepixel") == 0) /* -whitepixel n */ - { - CHECK_FOR_REQUIRED_ARGUMENTS(1); - currentScreen->whitePixel = atoi(argv[++i]); - return 2; - } - - if (strcmp (argv[i], "-linebias") == 0) /* -linebias n */ - { - CHECK_FOR_REQUIRED_ARGUMENTS(1); - currentScreen->lineBias = atoi(argv[++i]); - return 2; - } - -#ifdef HAS_MMAP - if (strcmp (argv[i], "-fbdir") == 0) /* -fbdir directory */ - { - CHECK_FOR_REQUIRED_ARGUMENTS(1); - pfbdir = argv[++i]; - fbmemtype = MMAPPED_FILE_FB; - return 2; - } -#endif /* HAS_MMAP */ - -#ifdef HAS_SHM - if (strcmp (argv[i], "-shmem") == 0) /* -shmem */ - { - fbmemtype = SHARED_MEMORY_FB; - return 1; - } -#endif - - return 0; -} - -static int cmapScrPrivateKeyIndex; -static DevPrivateKey cmapScrPrivateKey = &cmapScrPrivateKeyIndex; - -#define GetInstalledColormap(s) ((ColormapPtr) dixLookupPrivate(&(s)->devPrivates, cmapScrPrivateKey)) -#define SetInstalledColormap(s,c) (dixSetPrivate(&(s)->devPrivates, cmapScrPrivateKey, c)) - -static int -vfbListInstalledColormaps(ScreenPtr pScreen, Colormap *pmaps) -{ - /* By the time we are processing requests, we can guarantee that there - * is always a colormap installed */ - *pmaps = GetInstalledColormap(pScreen)->mid; - return (1); -} - - -static void -vfbInstallColormap(ColormapPtr pmap) -{ - ColormapPtr oldpmap = GetInstalledColormap(pmap->pScreen); - - if (pmap != oldpmap) - { - int entries; - XWDFileHeader *pXWDHeader; - XWDColor *pXWDCmap; - VisualPtr pVisual; - Pixel * ppix; - xrgb * prgb; - xColorItem *defs; - int i; - - if(oldpmap != (ColormapPtr)None) - WalkTree(pmap->pScreen, TellLostMap, (char *)&oldpmap->mid); - /* Install pmap */ - SetInstalledColormap(pmap->pScreen, pmap); - WalkTree(pmap->pScreen, TellGainedMap, (char *)&pmap->mid); - - entries = pmap->pVisual->ColormapEntries; - pXWDHeader = vfbScreens[pmap->pScreen->myNum].pXWDHeader; - pXWDCmap = vfbScreens[pmap->pScreen->myNum].pXWDCmap; - pVisual = pmap->pVisual; - - swapcopy32(pXWDHeader->visual_class, pVisual->class); - swapcopy32(pXWDHeader->red_mask, pVisual->redMask); - swapcopy32(pXWDHeader->green_mask, pVisual->greenMask); - swapcopy32(pXWDHeader->blue_mask, pVisual->blueMask); - swapcopy32(pXWDHeader->bits_per_rgb, pVisual->bitsPerRGBValue); - swapcopy32(pXWDHeader->colormap_entries, pVisual->ColormapEntries); - - ppix = (Pixel *)xalloc(entries * sizeof(Pixel)); - prgb = (xrgb *)xalloc(entries * sizeof(xrgb)); - defs = (xColorItem *)xalloc(entries * sizeof(xColorItem)); - - for (i = 0; i < entries; i++) ppix[i] = i; - /* XXX truecolor */ - QueryColors(pmap, entries, ppix, prgb); - - for (i = 0; i < entries; i++) { /* convert xrgbs to xColorItems */ - defs[i].pixel = ppix[i] & 0xff; /* change pixel to index */ - defs[i].red = prgb[i].red; - defs[i].green = prgb[i].green; - defs[i].blue = prgb[i].blue; - defs[i].flags = DoRed|DoGreen|DoBlue; - } - (*pmap->pScreen->StoreColors)(pmap, entries, defs); - - xfree(ppix); - xfree(prgb); - xfree(defs); - } -} - -static void -vfbUninstallColormap(ColormapPtr pmap) -{ - ColormapPtr curpmap = GetInstalledColormap(pmap->pScreen); - - if(pmap == curpmap) - { - if (pmap->mid != pmap->pScreen->defColormap) - { - dixLookupResourceByType((pointer *)&curpmap, - pmap->pScreen->defColormap, - RT_COLORMAP, serverClient, - DixInstallAccess); - (*pmap->pScreen->InstallColormap)(curpmap); - } - } -} - -static void -vfbStoreColors(ColormapPtr pmap, int ndef, xColorItem *pdefs) -{ - XWDColor *pXWDCmap; - int i; - - if (pmap != GetInstalledColormap(pmap->pScreen)) - { - return; - } - - pXWDCmap = vfbScreens[pmap->pScreen->myNum].pXWDCmap; - - if ((pmap->pVisual->class | DynamicClass) == DirectColor) - { - return; - } - - for (i = 0; i < ndef; i++) - { - if (pdefs[i].flags & DoRed) - { - swapcopy16(pXWDCmap[pdefs[i].pixel].red, pdefs[i].red); - } - if (pdefs[i].flags & DoGreen) - { - swapcopy16(pXWDCmap[pdefs[i].pixel].green, pdefs[i].green); - } - if (pdefs[i].flags & DoBlue) - { - swapcopy16(pXWDCmap[pdefs[i].pixel].blue, pdefs[i].blue); - } - } -} - -static Bool -vfbSaveScreen(ScreenPtr pScreen, int on) -{ - return TRUE; -} - -#ifdef HAS_MMAP - -/* this flushes any changes to the screens out to the mmapped file */ -static void -vfbBlockHandler(pointer blockData, OSTimePtr pTimeout, pointer pReadmask) -{ - int i; - - for (i = 0; i < vfbNumScreens; i++) - { -#ifdef MS_ASYNC - if (-1 == msync((caddr_t)vfbScreens[i].pXWDHeader, - (size_t)vfbScreens[i].sizeInBytes, MS_ASYNC)) -#else - /* silly NetBSD and who else? */ - if (-1 == msync((caddr_t)vfbScreens[i].pXWDHeader, - (size_t)vfbScreens[i].sizeInBytes)) -#endif - { - perror("msync"); - ErrorF("msync failed, %s", strerror(errno)); - } - } -} - - -static void -vfbWakeupHandler(pointer blockData, int result, pointer pReadmask) -{ -} - - -static void -vfbAllocateMmappedFramebuffer(vfbScreenInfoPtr pvfb) -{ -#define DUMMY_BUFFER_SIZE 65536 - char dummyBuffer[DUMMY_BUFFER_SIZE]; - int currentFileSize, writeThisTime; - - sprintf(pvfb->mmap_file, "%s/Xvfb_screen%d", pfbdir, (int) (pvfb - vfbScreens)); - if (-1 == (pvfb->mmap_fd = open(pvfb->mmap_file, O_CREAT|O_RDWR, 0666))) - { - perror("open"); - ErrorF("open %s failed, %s", pvfb->mmap_file, strerror(errno)); - return; - } - - /* Extend the file to be the proper size */ - - bzero(dummyBuffer, DUMMY_BUFFER_SIZE); - for (currentFileSize = 0; - currentFileSize < pvfb->sizeInBytes; - currentFileSize += writeThisTime) - { - writeThisTime = min(DUMMY_BUFFER_SIZE, - pvfb->sizeInBytes - currentFileSize); - if (-1 == write(pvfb->mmap_fd, dummyBuffer, writeThisTime)) - { - perror("write"); - ErrorF("write %s failed, %s", pvfb->mmap_file, strerror(errno)); - return; - } - } - - /* try to mmap the file */ - - pvfb->pXWDHeader = (XWDFileHeader *)mmap((caddr_t)NULL, pvfb->sizeInBytes, - PROT_READ|PROT_WRITE, - MAP_FILE|MAP_SHARED, - pvfb->mmap_fd, 0); - if (-1 == (long)pvfb->pXWDHeader) - { - perror("mmap"); - ErrorF("mmap %s failed, %s", pvfb->mmap_file, strerror(errno)); - pvfb->pXWDHeader = NULL; - return; - } - - if (!RegisterBlockAndWakeupHandlers(vfbBlockHandler, vfbWakeupHandler, - NULL)) - { - pvfb->pXWDHeader = NULL; - } -} -#endif /* HAS_MMAP */ - - -#ifdef HAS_SHM -static void -vfbAllocateSharedMemoryFramebuffer(vfbScreenInfoPtr pvfb) -{ - /* create the shared memory segment */ - - pvfb->shmid = shmget(IPC_PRIVATE, pvfb->sizeInBytes, IPC_CREAT|0777); - if (pvfb->shmid < 0) - { - perror("shmget"); - ErrorF("shmget %d bytes failed, %s", pvfb->sizeInBytes, strerror(errno)); - return; - } - - /* try to attach it */ - - pvfb->pXWDHeader = (XWDFileHeader *)shmat(pvfb->shmid, 0, 0); - if (-1 == (long)pvfb->pXWDHeader) - { - perror("shmat"); - ErrorF("shmat failed, %s", strerror(errno)); - pvfb->pXWDHeader = NULL; - return; - } - - ErrorF("screen %d shmid %d\n", (int) (pvfb - vfbScreens), pvfb->shmid); -} -#endif /* HAS_SHM */ - -static char * -vfbAllocateFramebufferMemory(vfbScreenInfoPtr pvfb) -{ - if (pvfb->pfbMemory) return pvfb->pfbMemory; /* already done */ - - pvfb->sizeInBytes = pvfb->paddedBytesWidth * pvfb->height; - - /* Calculate how many entries in colormap. This is rather bogus, because - * the visuals haven't even been set up yet, but we need to know because we - * have to allocate space in the file for the colormap. The number 10 - * below comes from the MAX_PSEUDO_DEPTH define in cfbcmap.c. - */ - - if (pvfb->depth <= 10) - { /* single index colormaps */ - pvfb->ncolors = 1 << pvfb->depth; - } - else - { /* decomposed colormaps */ - int nplanes_per_color_component = pvfb->depth / 3; - if (pvfb->depth % 3) nplanes_per_color_component++; - pvfb->ncolors = 1 << nplanes_per_color_component; - } - - /* add extra bytes for XWDFileHeader, window name, and colormap */ - - pvfb->sizeInBytes += SIZEOF(XWDheader) + XWD_WINDOW_NAME_LEN + - pvfb->ncolors * SIZEOF(XWDColor); - - pvfb->pXWDHeader = NULL; - switch (fbmemtype) - { -#ifdef HAS_MMAP - case MMAPPED_FILE_FB: vfbAllocateMmappedFramebuffer(pvfb); break; -#else - case MMAPPED_FILE_FB: break; -#endif - -#ifdef HAS_SHM - case SHARED_MEMORY_FB: vfbAllocateSharedMemoryFramebuffer(pvfb); break; -#else - case SHARED_MEMORY_FB: break; -#endif - - case NORMAL_MEMORY_FB: - pvfb->pXWDHeader = (XWDFileHeader *)Xalloc(pvfb->sizeInBytes); - break; - } - - if (pvfb->pXWDHeader) - { - pvfb->pXWDCmap = (XWDColor *)((char *)pvfb->pXWDHeader - + SIZEOF(XWDheader) + XWD_WINDOW_NAME_LEN); - pvfb->pfbMemory = (char *)(pvfb->pXWDCmap + pvfb->ncolors); - - return pvfb->pfbMemory; - } - else - return NULL; -} - - -static void -vfbWriteXWDFileHeader(ScreenPtr pScreen) -{ - vfbScreenInfoPtr pvfb = &vfbScreens[pScreen->myNum]; - XWDFileHeader *pXWDHeader = pvfb->pXWDHeader; - char hostname[XWD_WINDOW_NAME_LEN]; - unsigned long swaptest = 1; - int i; - - needswap = *(char *) &swaptest; - - pXWDHeader->header_size = (char *)pvfb->pXWDCmap - (char *)pvfb->pXWDHeader; - pXWDHeader->file_version = XWD_FILE_VERSION; - - pXWDHeader->pixmap_format = ZPixmap; - pXWDHeader->pixmap_depth = pvfb->depth; - pXWDHeader->pixmap_height = pXWDHeader->window_height = pvfb->height; - pXWDHeader->xoffset = 0; - pXWDHeader->byte_order = IMAGE_BYTE_ORDER; - pXWDHeader->bitmap_bit_order = BITMAP_BIT_ORDER; -#ifndef INTERNAL_VS_EXTERNAL_PADDING - pXWDHeader->pixmap_width = pXWDHeader->window_width = pvfb->width; - pXWDHeader->bitmap_unit = BITMAP_SCANLINE_UNIT; - pXWDHeader->bitmap_pad = BITMAP_SCANLINE_PAD; -#else - pXWDHeader->pixmap_width = pXWDHeader->window_width = pvfb->paddedWidth; - pXWDHeader->bitmap_unit = BITMAP_SCANLINE_UNIT_PROTO; - pXWDHeader->bitmap_pad = BITMAP_SCANLINE_PAD_PROTO; -#endif - pXWDHeader->bits_per_pixel = pvfb->bitsPerPixel; - pXWDHeader->bytes_per_line = pvfb->paddedBytesWidth; - pXWDHeader->ncolors = pvfb->ncolors; - - /* visual related fields are written when colormap is installed */ - - pXWDHeader->window_x = pXWDHeader->window_y = 0; - pXWDHeader->window_bdrwidth = 0; - - /* write xwd "window" name: Xvfb hostname:server.screen */ - - if (-1 == gethostname(hostname, sizeof(hostname))) - hostname[0] = 0; - else - hostname[XWD_WINDOW_NAME_LEN-1] = 0; - sprintf((char *)(pXWDHeader+1), "Xvfb %s:%s.%d", hostname, display, - pScreen->myNum); - - /* write colormap pixel slot values */ - - for (i = 0; i < pvfb->ncolors; i++) - { - pvfb->pXWDCmap[i].pixel = i; - } - - /* byte swap to most significant byte first */ - - if (needswap) - { - SwapLongs((CARD32 *)pXWDHeader, SIZEOF(XWDheader)/4); - for (i = 0; i < pvfb->ncolors; i++) - { - register char n; - swapl(&pvfb->pXWDCmap[i].pixel, n); - } - } -} - - -static Bool -vfbCursorOffScreen (ScreenPtr *ppScreen, int *x, int *y) -{ - return FALSE; -} - -static void -vfbCrossScreen (ScreenPtr pScreen, Bool entering) -{ -} - -static miPointerScreenFuncRec vfbPointerCursorFuncs = -{ - vfbCursorOffScreen, - vfbCrossScreen, - miPointerWarpCursor -}; - -static Bool -vfbCloseScreen(int index, ScreenPtr pScreen) -{ - vfbScreenInfoPtr pvfb = &vfbScreens[index]; - int i; - - pScreen->CloseScreen = pvfb->closeScreen; - - /* - * XXX probably lots of stuff to clean. For now, - * clear installed colormaps so that server reset works correctly. - */ - for (i = 0; i < screenInfo.numScreens; i++) - SetInstalledColormap(screenInfo.screens[i], NULL); - - return pScreen->CloseScreen(index, pScreen); -} - -static Bool -vfbScreenInit(int index, ScreenPtr pScreen, int argc, char **argv) -{ - vfbScreenInfoPtr pvfb = &vfbScreens[index]; - int dpix = monitorResolution, dpiy = monitorResolution; - int ret; - char *pbits; - - if (dpix == 0) - dpix = 100; - - if (dpiy == 0) - dpiy = 100; - - pvfb->paddedBytesWidth = PixmapBytePad(pvfb->width, pvfb->depth); - pvfb->bitsPerPixel = vfbBitsPerPixel(pvfb->depth); - if (pvfb->bitsPerPixel >= 8 ) - pvfb->paddedWidth = pvfb->paddedBytesWidth / (pvfb->bitsPerPixel / 8); - else - pvfb->paddedWidth = pvfb->paddedBytesWidth * 8; - pbits = vfbAllocateFramebufferMemory(pvfb); - if (!pbits) return FALSE; - - switch (pvfb->depth) { - case 8: - miSetVisualTypesAndMasks (8, - ((1 << StaticGray) | - (1 << GrayScale) | - (1 << StaticColor) | - (1 << PseudoColor) | - (1 << TrueColor) | - (1 << DirectColor)), - 8, PseudoColor, 0, 0, 0); - break; - case 15: - miSetVisualTypesAndMasks (15, - ((1 << TrueColor) | - (1 << DirectColor)), - 8, TrueColor, 0x7c00, 0x03e0, 0x001f); - break; - case 16: - miSetVisualTypesAndMasks (16, - ((1 << TrueColor) | - (1 << DirectColor)), - 8, TrueColor, 0xf800, 0x07e0, 0x001f); - break; - case 24: - miSetVisualTypesAndMasks (24, - ((1 << TrueColor) | - (1 << DirectColor)), - 8, TrueColor, 0xff0000, 0x00ff00, 0x0000ff); - break; - case 30: - miSetVisualTypesAndMasks (30, - ((1 << TrueColor) | - (1 << DirectColor)), - 10, TrueColor, 0x3ff00000, 0x000ffc00, 0x000003ff); - break; - } - - miSetPixmapDepths (); - - ret = fbScreenInit(pScreen, pbits, pvfb->width, pvfb->height, - dpix, dpiy, pvfb->paddedWidth,pvfb->bitsPerPixel); - if (ret && Render) - fbPictureInit (pScreen, 0, 0); - - if (!ret) return FALSE; - - miInitializeBackingStore(pScreen); - - /* - * Circumvent the backing store that was just initialised. This amounts - * to a truely bizarre way of initialising SaveDoomedAreas and friends. - */ - - pScreen->InstallColormap = vfbInstallColormap; - pScreen->UninstallColormap = vfbUninstallColormap; - pScreen->ListInstalledColormaps = vfbListInstalledColormaps; - - pScreen->SaveScreen = vfbSaveScreen; - pScreen->StoreColors = vfbStoreColors; - - miDCInitialize(pScreen, &vfbPointerCursorFuncs); - - vfbWriteXWDFileHeader(pScreen); - - pScreen->blackPixel = pvfb->blackPixel; - pScreen->whitePixel = pvfb->whitePixel; - - ret = fbCreateDefColormap(pScreen); - - miSetZeroLineBias(pScreen, pvfb->lineBias); - - pvfb->closeScreen = pScreen->CloseScreen; - pScreen->CloseScreen = vfbCloseScreen; - - return ret; - -} /* end vfbScreenInit */ - - -void -InitOutput(ScreenInfo *screenInfo, int argc, char **argv) -{ - int i; - int NumFormats = 0; - - /* initialize pixmap formats */ - - /* must have a pixmap depth to match every screen depth */ - for (i = 0; i < vfbNumScreens; i++) - { - vfbPixmapDepths[vfbScreens[i].depth] = TRUE; - } - - /* RENDER needs a good set of pixmaps. */ - if (Render) { - vfbPixmapDepths[1] = TRUE; - vfbPixmapDepths[4] = TRUE; - vfbPixmapDepths[8] = TRUE; -#if 0 - vfbPixmapDepths[12] = TRUE; -#endif -/* vfbPixmapDepths[15] = TRUE; */ - vfbPixmapDepths[16] = TRUE; - vfbPixmapDepths[24] = TRUE; -#if 0 - vfbPixmapDepths[30] = TRUE; -#endif - vfbPixmapDepths[32] = TRUE; - } - - for (i = 1; i <= 32; i++) - { - if (vfbPixmapDepths[i]) - { - if (NumFormats >= MAXFORMATS) - FatalError ("MAXFORMATS is too small for this server\n"); - screenInfo->formats[NumFormats].depth = i; - screenInfo->formats[NumFormats].bitsPerPixel = vfbBitsPerPixel(i); - screenInfo->formats[NumFormats].scanlinePad = BITMAP_SCANLINE_PAD; - NumFormats++; - } - } - - screenInfo->imageByteOrder = IMAGE_BYTE_ORDER; - screenInfo->bitmapScanlineUnit = BITMAP_SCANLINE_UNIT; - screenInfo->bitmapScanlinePad = BITMAP_SCANLINE_PAD; - screenInfo->bitmapBitOrder = BITMAP_BIT_ORDER; - screenInfo->numPixmapFormats = NumFormats; - - /* initialize screens */ - - if (vfbNumScreens < 1) - { - vfbScreens = &defaultScreenInfo; - vfbNumScreens = 1; - } - for (i = 0; i < vfbNumScreens; i++) - { - if (-1 == AddScreen(vfbScreenInit, argc, argv)) - { - FatalError("Couldn't add screen %d", i); - } - } - -} /* end InitOutput */ +/*
+
+Copyright 1993, 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
+
+#if defined(WIN32)
+#include <X11/Xwinsock.h>
+#endif
+#include <stdio.h>
+#include <X11/X.h>
+#include <X11/Xproto.h>
+#include <X11/Xos.h>
+#include "scrnintstr.h"
+#include "servermd.h"
+#define PSZ 8
+#include "fb.h"
+#include "mibstore.h"
+#include "colormapst.h"
+#include "gcstruct.h"
+#include "input.h"
+#include "mipointer.h"
+#include "micmap.h"
+#include <sys/types.h>
+#ifdef HAS_MMAP
+#include <sys/mman.h>
+#ifndef MAP_FILE
+#define MAP_FILE 0
+#endif
+#endif /* HAS_MMAP */
+#include <sys/stat.h>
+#include <errno.h>
+#ifndef WIN32
+#include <sys/param.h>
+#endif
+#include <X11/XWDFile.h>
+#ifdef HAS_SHM
+#include <sys/ipc.h>
+#include <sys/shm.h>
+#endif /* HAS_SHM */
+#include "dix.h"
+#include "miline.h"
+
+#define VFB_DEFAULT_WIDTH 1280
+#define VFB_DEFAULT_HEIGHT 1024
+#define VFB_DEFAULT_DEPTH 8
+#define VFB_DEFAULT_WHITEPIXEL 1
+#define VFB_DEFAULT_BLACKPIXEL 0
+#define VFB_DEFAULT_LINEBIAS 0
+#define XWD_WINDOW_NAME_LEN 60
+
+typedef struct
+{
+ int width;
+ int paddedBytesWidth;
+ int paddedWidth;
+ int height;
+ int depth;
+ int bitsPerPixel;
+ int sizeInBytes;
+ int ncolors;
+ char *pfbMemory;
+ XWDColor *pXWDCmap;
+ XWDFileHeader *pXWDHeader;
+ Pixel blackPixel;
+ Pixel whitePixel;
+ unsigned int lineBias;
+ CloseScreenProcPtr closeScreen;
+
+#ifdef HAS_MMAP
+ int mmap_fd;
+ char mmap_file[MAXPATHLEN];
+#endif
+
+#ifdef HAS_SHM
+ int shmid;
+#endif
+} vfbScreenInfo, *vfbScreenInfoPtr;
+
+static int vfbNumScreens;
+static vfbScreenInfo *vfbScreens;
+static vfbScreenInfo defaultScreenInfo = {
+ .width = VFB_DEFAULT_WIDTH,
+ .height = VFB_DEFAULT_HEIGHT,
+ .depth = VFB_DEFAULT_DEPTH,
+ .blackPixel = VFB_DEFAULT_BLACKPIXEL,
+ .whitePixel = VFB_DEFAULT_WHITEPIXEL,
+ .lineBias = VFB_DEFAULT_LINEBIAS,
+};
+static Bool vfbPixmapDepths[33];
+#ifdef HAS_MMAP
+static char *pfbdir = NULL;
+#endif
+typedef enum { NORMAL_MEMORY_FB, SHARED_MEMORY_FB, MMAPPED_FILE_FB } fbMemType;
+static fbMemType fbmemtype = NORMAL_MEMORY_FB;
+static char needswap = 0;
+static Bool Render = TRUE;
+
+#define swapcopy16(_dst, _src) \
+ if (needswap) { CARD16 _s = _src; cpswaps(_s, _dst); } \
+ else _dst = _src;
+
+#define swapcopy32(_dst, _src) \
+ if (needswap) { CARD32 _s = _src; cpswapl(_s, _dst); } \
+ else _dst = _src;
+
+
+static void
+vfbInitializePixmapDepths(void)
+{
+ int i;
+ vfbPixmapDepths[1] = TRUE; /* always need bitmaps */
+ for (i = 2; i <= 32; i++)
+ vfbPixmapDepths[i] = FALSE;
+}
+
+static int
+vfbBitsPerPixel(int depth)
+{
+ if (depth == 1) return 1;
+ else if (depth <= 8) return 8;
+ else if (depth <= 16) return 16;
+ else return 32;
+}
+
+void
+ddxGiveUp(void)
+{
+ int i;
+
+ /* clean up the framebuffers */
+
+ switch (fbmemtype)
+ {
+#ifdef HAS_MMAP
+ case MMAPPED_FILE_FB:
+ for (i = 0; i < vfbNumScreens; i++)
+ {
+ if (-1 == unlink(vfbScreens[i].mmap_file))
+ {
+ perror("unlink");
+ ErrorF("unlink %s failed, %s",
+ vfbScreens[i].mmap_file, strerror(errno));
+ }
+ }
+ break;
+#else /* HAS_MMAP */
+ case MMAPPED_FILE_FB:
+ break;
+#endif /* HAS_MMAP */
+
+#ifdef HAS_SHM
+ case SHARED_MEMORY_FB:
+ for (i = 0; i < vfbNumScreens; i++)
+ {
+ if (-1 == shmdt((char *)vfbScreens[i].pXWDHeader))
+ {
+ perror("shmdt");
+ ErrorF("shmdt failed, %s", strerror(errno));
+ }
+ }
+ break;
+#else /* HAS_SHM */
+ case SHARED_MEMORY_FB:
+ break;
+#endif /* HAS_SHM */
+
+ case NORMAL_MEMORY_FB:
+ for (i = 0; i < vfbNumScreens; i++)
+ {
+ free(vfbScreens[i].pXWDHeader);
+ }
+ break;
+ }
+}
+
+void
+AbortDDX(void)
+{
+ ddxGiveUp();
+}
+
+#ifdef __APPLE__
+void
+DarwinHandleGUI(int argc, char *argv[])
+{
+}
+#endif
+
+void
+OsVendorInit(void)
+{
+}
+
+void
+OsVendorFatalError(void)
+{
+}
+
+#if defined(DDXBEFORERESET)
+void ddxBeforeReset(void)
+{
+ return;
+}
+#endif
+
+void
+ddxUseMsg(void)
+{
+ ErrorF("-screen scrn WxHxD set screen's width, height, depth\n");
+ ErrorF("-pixdepths list-of-int support given pixmap depths\n");
+ ErrorF("+/-render turn on/off RENDER extension support"
+ "(default on)\n");
+ ErrorF("-linebias n adjust thin line pixelization\n");
+ ErrorF("-blackpixel n pixel value for black\n");
+ ErrorF("-whitepixel n pixel value for white\n");
+
+#ifdef HAS_MMAP
+ ErrorF("-fbdir directory put framebuffers in mmap'ed files in directory\n");
+#endif
+
+#ifdef HAS_SHM
+ ErrorF("-shmem put framebuffers in shared memory\n");
+#endif
+}
+
+int
+ddxProcessArgument(int argc, char *argv[], int i)
+{
+ static Bool firstTime = TRUE;
+ static int lastScreen = -1;
+ vfbScreenInfo *currentScreen;
+
+ if (firstTime)
+ {
+ vfbInitializePixmapDepths();
+ firstTime = FALSE;
+ }
+
+ if (lastScreen == -1)
+ currentScreen = &defaultScreenInfo;
+ else
+ currentScreen = &vfbScreens[lastScreen];
+
+#define CHECK_FOR_REQUIRED_ARGUMENTS(num) \
+ if (((i + num) >= argc) || (!argv[i + num])) { \
+ ErrorF("Required argument to %s not specified\n", argv[i]); \
+ UseMsg(); \
+ FatalError("Required argument to %s not specified\n", argv[i]); \
+ }
+
+ if (strcmp (argv[i], "-screen") == 0) /* -screen n WxHxD */
+ {
+ int screenNum;
+ CHECK_FOR_REQUIRED_ARGUMENTS(2);
+ screenNum = atoi(argv[i+1]);
+ if (screenNum < 0)
+ {
+ ErrorF("Invalid screen number %d\n", screenNum);
+ UseMsg();
+ FatalError("Invalid screen number %d passed to -screen\n",
+ screenNum);
+ }
+
+ if (vfbNumScreens <= screenNum)
+ {
+ vfbScreens = realloc(vfbScreens, sizeof(*vfbScreens) * (screenNum + 1));
+ if (!vfbScreens)
+ FatalError("Not enough memory for screen %d\n", screenNum);
+ for (; vfbNumScreens <= screenNum; ++vfbNumScreens)
+ vfbScreens[vfbNumScreens] = defaultScreenInfo;
+ }
+
+ if (3 != sscanf(argv[i+2], "%dx%dx%d",
+ &vfbScreens[screenNum].width,
+ &vfbScreens[screenNum].height,
+ &vfbScreens[screenNum].depth))
+ {
+ ErrorF("Invalid screen configuration %s\n", argv[i+2]);
+ UseMsg();
+ FatalError("Invalid screen configuration %s for -screen %d\n",
+ argv[i+2], screenNum);
+ }
+
+ lastScreen = screenNum;
+ return 3;
+ }
+
+ if (strcmp (argv[i], "-pixdepths") == 0) /* -pixdepths list-of-depth */
+ {
+ int depth, ret = 1;
+
+ CHECK_FOR_REQUIRED_ARGUMENTS(1);
+ while ((++i < argc) && (depth = atoi(argv[i])) != 0)
+ {
+ if (depth < 0 || depth > 32)
+ {
+ ErrorF("Invalid pixmap depth %d\n", depth);
+ UseMsg();
+ FatalError("Invalid pixmap depth %d passed to -pixdepths\n",
+ depth);
+ }
+ vfbPixmapDepths[depth] = TRUE;
+ ret++;
+ }
+ return ret;
+ }
+
+ if (strcmp (argv[i], "+render") == 0) /* +render */
+ {
+ Render = TRUE;
+ return 1;
+ }
+
+ if (strcmp (argv[i], "-render") == 0) /* -render */
+ {
+ Render = FALSE;
+#ifdef COMPOSITE
+ noCompositeExtension = TRUE;
+#endif
+ return 1;
+ }
+
+ if (strcmp (argv[i], "-blackpixel") == 0) /* -blackpixel n */
+ {
+ CHECK_FOR_REQUIRED_ARGUMENTS(1);
+ currentScreen->blackPixel = atoi(argv[++i]);
+ return 2;
+ }
+
+ if (strcmp (argv[i], "-whitepixel") == 0) /* -whitepixel n */
+ {
+ CHECK_FOR_REQUIRED_ARGUMENTS(1);
+ currentScreen->whitePixel = atoi(argv[++i]);
+ return 2;
+ }
+
+ if (strcmp (argv[i], "-linebias") == 0) /* -linebias n */
+ {
+ CHECK_FOR_REQUIRED_ARGUMENTS(1);
+ currentScreen->lineBias = atoi(argv[++i]);
+ return 2;
+ }
+
+#ifdef HAS_MMAP
+ if (strcmp (argv[i], "-fbdir") == 0) /* -fbdir directory */
+ {
+ CHECK_FOR_REQUIRED_ARGUMENTS(1);
+ pfbdir = argv[++i];
+ fbmemtype = MMAPPED_FILE_FB;
+ return 2;
+ }
+#endif /* HAS_MMAP */
+
+#ifdef HAS_SHM
+ if (strcmp (argv[i], "-shmem") == 0) /* -shmem */
+ {
+ fbmemtype = SHARED_MEMORY_FB;
+ return 1;
+ }
+#endif
+
+ return 0;
+}
+
+static int cmapScrPrivateKeyIndex;
+static DevPrivateKey cmapScrPrivateKey = &cmapScrPrivateKeyIndex;
+
+#define GetInstalledColormap(s) ((ColormapPtr) dixLookupPrivate(&(s)->devPrivates, cmapScrPrivateKey))
+#define SetInstalledColormap(s,c) (dixSetPrivate(&(s)->devPrivates, cmapScrPrivateKey, c))
+
+static int
+vfbListInstalledColormaps(ScreenPtr pScreen, Colormap *pmaps)
+{
+ /* By the time we are processing requests, we can guarantee that there
+ * is always a colormap installed */
+ *pmaps = GetInstalledColormap(pScreen)->mid;
+ return (1);
+}
+
+
+static void
+vfbInstallColormap(ColormapPtr pmap)
+{
+ ColormapPtr oldpmap = GetInstalledColormap(pmap->pScreen);
+
+ if (pmap != oldpmap)
+ {
+ int entries;
+ XWDFileHeader *pXWDHeader;
+ XWDColor *pXWDCmap;
+ VisualPtr pVisual;
+ Pixel * ppix;
+ xrgb * prgb;
+ xColorItem *defs;
+ int i;
+
+ if(oldpmap != (ColormapPtr)None)
+ WalkTree(pmap->pScreen, TellLostMap, (char *)&oldpmap->mid);
+ /* Install pmap */
+ SetInstalledColormap(pmap->pScreen, pmap);
+ WalkTree(pmap->pScreen, TellGainedMap, (char *)&pmap->mid);
+
+ entries = pmap->pVisual->ColormapEntries;
+ pXWDHeader = vfbScreens[pmap->pScreen->myNum].pXWDHeader;
+ pXWDCmap = vfbScreens[pmap->pScreen->myNum].pXWDCmap;
+ pVisual = pmap->pVisual;
+
+ swapcopy32(pXWDHeader->visual_class, pVisual->class);
+ swapcopy32(pXWDHeader->red_mask, pVisual->redMask);
+ swapcopy32(pXWDHeader->green_mask, pVisual->greenMask);
+ swapcopy32(pXWDHeader->blue_mask, pVisual->blueMask);
+ swapcopy32(pXWDHeader->bits_per_rgb, pVisual->bitsPerRGBValue);
+ swapcopy32(pXWDHeader->colormap_entries, pVisual->ColormapEntries);
+
+ ppix = (Pixel *)malloc(entries * sizeof(Pixel));
+ prgb = (xrgb *)malloc(entries * sizeof(xrgb));
+ defs = (xColorItem *)malloc(entries * sizeof(xColorItem));
+
+ for (i = 0; i < entries; i++) ppix[i] = i;
+ /* XXX truecolor */
+ QueryColors(pmap, entries, ppix, prgb, serverClient);
+
+ for (i = 0; i < entries; i++) { /* convert xrgbs to xColorItems */
+ defs[i].pixel = ppix[i] & 0xff; /* change pixel to index */
+ defs[i].red = prgb[i].red;
+ defs[i].green = prgb[i].green;
+ defs[i].blue = prgb[i].blue;
+ defs[i].flags = DoRed|DoGreen|DoBlue;
+ }
+ (*pmap->pScreen->StoreColors)(pmap, entries, defs);
+
+ free(ppix);
+ free(prgb);
+ free(defs);
+ }
+}
+
+static void
+vfbUninstallColormap(ColormapPtr pmap)
+{
+ ColormapPtr curpmap = GetInstalledColormap(pmap->pScreen);
+
+ if(pmap == curpmap)
+ {
+ if (pmap->mid != pmap->pScreen->defColormap)
+ {
+ dixLookupResourceByType((pointer *)&curpmap,
+ pmap->pScreen->defColormap,
+ RT_COLORMAP, serverClient,
+ DixInstallAccess);
+ (*pmap->pScreen->InstallColormap)(curpmap);
+ }
+ }
+}
+
+static void
+vfbStoreColors(ColormapPtr pmap, int ndef, xColorItem *pdefs)
+{
+ XWDColor *pXWDCmap;
+ int i;
+
+ if (pmap != GetInstalledColormap(pmap->pScreen))
+ {
+ return;
+ }
+
+ pXWDCmap = vfbScreens[pmap->pScreen->myNum].pXWDCmap;
+
+ if ((pmap->pVisual->class | DynamicClass) == DirectColor)
+ {
+ return;
+ }
+
+ for (i = 0; i < ndef; i++)
+ {
+ if (pdefs[i].flags & DoRed)
+ {
+ swapcopy16(pXWDCmap[pdefs[i].pixel].red, pdefs[i].red);
+ }
+ if (pdefs[i].flags & DoGreen)
+ {
+ swapcopy16(pXWDCmap[pdefs[i].pixel].green, pdefs[i].green);
+ }
+ if (pdefs[i].flags & DoBlue)
+ {
+ swapcopy16(pXWDCmap[pdefs[i].pixel].blue, pdefs[i].blue);
+ }
+ }
+}
+
+static Bool
+vfbSaveScreen(ScreenPtr pScreen, int on)
+{
+ return TRUE;
+}
+
+#ifdef HAS_MMAP
+
+/* this flushes any changes to the screens out to the mmapped file */
+static void
+vfbBlockHandler(pointer blockData, OSTimePtr pTimeout, pointer pReadmask)
+{
+ int i;
+
+ for (i = 0; i < vfbNumScreens; i++)
+ {
+#ifdef MS_ASYNC
+ if (-1 == msync((caddr_t)vfbScreens[i].pXWDHeader,
+ (size_t)vfbScreens[i].sizeInBytes, MS_ASYNC))
+#else
+ /* silly NetBSD and who else? */
+ if (-1 == msync((caddr_t)vfbScreens[i].pXWDHeader,
+ (size_t)vfbScreens[i].sizeInBytes))
+#endif
+ {
+ perror("msync");
+ ErrorF("msync failed, %s", strerror(errno));
+ }
+ }
+}
+
+
+static void
+vfbWakeupHandler(pointer blockData, int result, pointer pReadmask)
+{
+}
+
+
+static void
+vfbAllocateMmappedFramebuffer(vfbScreenInfoPtr pvfb)
+{
+#define DUMMY_BUFFER_SIZE 65536
+ char dummyBuffer[DUMMY_BUFFER_SIZE];
+ int currentFileSize, writeThisTime;
+
+ sprintf(pvfb->mmap_file, "%s/Xvfb_screen%d", pfbdir, (int) (pvfb - vfbScreens));
+ if (-1 == (pvfb->mmap_fd = open(pvfb->mmap_file, O_CREAT|O_RDWR, 0666)))
+ {
+ perror("open");
+ ErrorF("open %s failed, %s", pvfb->mmap_file, strerror(errno));
+ return;
+ }
+
+ /* Extend the file to be the proper size */
+
+ bzero(dummyBuffer, DUMMY_BUFFER_SIZE);
+ for (currentFileSize = 0;
+ currentFileSize < pvfb->sizeInBytes;
+ currentFileSize += writeThisTime)
+ {
+ writeThisTime = min(DUMMY_BUFFER_SIZE,
+ pvfb->sizeInBytes - currentFileSize);
+ if (-1 == write(pvfb->mmap_fd, dummyBuffer, writeThisTime))
+ {
+ perror("write");
+ ErrorF("write %s failed, %s", pvfb->mmap_file, strerror(errno));
+ return;
+ }
+ }
+
+ /* try to mmap the file */
+
+ pvfb->pXWDHeader = (XWDFileHeader *)mmap((caddr_t)NULL, pvfb->sizeInBytes,
+ PROT_READ|PROT_WRITE,
+ MAP_FILE|MAP_SHARED,
+ pvfb->mmap_fd, 0);
+ if (-1 == (long)pvfb->pXWDHeader)
+ {
+ perror("mmap");
+ ErrorF("mmap %s failed, %s", pvfb->mmap_file, strerror(errno));
+ pvfb->pXWDHeader = NULL;
+ return;
+ }
+
+ if (!RegisterBlockAndWakeupHandlers(vfbBlockHandler, vfbWakeupHandler,
+ NULL))
+ {
+ pvfb->pXWDHeader = NULL;
+ }
+}
+#endif /* HAS_MMAP */
+
+
+#ifdef HAS_SHM
+static void
+vfbAllocateSharedMemoryFramebuffer(vfbScreenInfoPtr pvfb)
+{
+ /* create the shared memory segment */
+
+ pvfb->shmid = shmget(IPC_PRIVATE, pvfb->sizeInBytes, IPC_CREAT|0777);
+ if (pvfb->shmid < 0)
+ {
+ perror("shmget");
+ ErrorF("shmget %d bytes failed, %s", pvfb->sizeInBytes, strerror(errno));
+ return;
+ }
+
+ /* try to attach it */
+
+ pvfb->pXWDHeader = (XWDFileHeader *)shmat(pvfb->shmid, 0, 0);
+ if (-1 == (long)pvfb->pXWDHeader)
+ {
+ perror("shmat");
+ ErrorF("shmat failed, %s", strerror(errno));
+ pvfb->pXWDHeader = NULL;
+ return;
+ }
+
+ ErrorF("screen %d shmid %d\n", (int) (pvfb - vfbScreens), pvfb->shmid);
+}
+#endif /* HAS_SHM */
+
+static char *
+vfbAllocateFramebufferMemory(vfbScreenInfoPtr pvfb)
+{
+ if (pvfb->pfbMemory) return pvfb->pfbMemory; /* already done */
+
+ pvfb->sizeInBytes = pvfb->paddedBytesWidth * pvfb->height;
+
+ /* Calculate how many entries in colormap. This is rather bogus, because
+ * the visuals haven't even been set up yet, but we need to know because we
+ * have to allocate space in the file for the colormap. The number 10
+ * below comes from the MAX_PSEUDO_DEPTH define in cfbcmap.c.
+ */
+
+ if (pvfb->depth <= 10)
+ { /* single index colormaps */
+ pvfb->ncolors = 1 << pvfb->depth;
+ }
+ else
+ { /* decomposed colormaps */
+ int nplanes_per_color_component = pvfb->depth / 3;
+ if (pvfb->depth % 3) nplanes_per_color_component++;
+ pvfb->ncolors = 1 << nplanes_per_color_component;
+ }
+
+ /* add extra bytes for XWDFileHeader, window name, and colormap */
+
+ pvfb->sizeInBytes += SIZEOF(XWDheader) + XWD_WINDOW_NAME_LEN +
+ pvfb->ncolors * SIZEOF(XWDColor);
+
+ pvfb->pXWDHeader = NULL;
+ switch (fbmemtype)
+ {
+#ifdef HAS_MMAP
+ case MMAPPED_FILE_FB: vfbAllocateMmappedFramebuffer(pvfb); break;
+#else
+ case MMAPPED_FILE_FB: break;
+#endif
+
+#ifdef HAS_SHM
+ case SHARED_MEMORY_FB: vfbAllocateSharedMemoryFramebuffer(pvfb); break;
+#else
+ case SHARED_MEMORY_FB: break;
+#endif
+
+ case NORMAL_MEMORY_FB:
+ pvfb->pXWDHeader = (XWDFileHeader *)malloc(pvfb->sizeInBytes);
+ break;
+ }
+
+ if (pvfb->pXWDHeader)
+ {
+ pvfb->pXWDCmap = (XWDColor *)((char *)pvfb->pXWDHeader
+ + SIZEOF(XWDheader) + XWD_WINDOW_NAME_LEN);
+ pvfb->pfbMemory = (char *)(pvfb->pXWDCmap + pvfb->ncolors);
+
+ return pvfb->pfbMemory;
+ }
+ else
+ return NULL;
+}
+
+
+static void
+vfbWriteXWDFileHeader(ScreenPtr pScreen)
+{
+ vfbScreenInfoPtr pvfb = &vfbScreens[pScreen->myNum];
+ XWDFileHeader *pXWDHeader = pvfb->pXWDHeader;
+ char hostname[XWD_WINDOW_NAME_LEN];
+ unsigned long swaptest = 1;
+ int i;
+
+ needswap = *(char *) &swaptest;
+
+ pXWDHeader->header_size = (char *)pvfb->pXWDCmap - (char *)pvfb->pXWDHeader;
+ pXWDHeader->file_version = XWD_FILE_VERSION;
+
+ pXWDHeader->pixmap_format = ZPixmap;
+ pXWDHeader->pixmap_depth = pvfb->depth;
+ pXWDHeader->pixmap_height = pXWDHeader->window_height = pvfb->height;
+ pXWDHeader->xoffset = 0;
+ pXWDHeader->byte_order = IMAGE_BYTE_ORDER;
+ pXWDHeader->bitmap_bit_order = BITMAP_BIT_ORDER;
+#ifndef INTERNAL_VS_EXTERNAL_PADDING
+ pXWDHeader->pixmap_width = pXWDHeader->window_width = pvfb->width;
+ pXWDHeader->bitmap_unit = BITMAP_SCANLINE_UNIT;
+ pXWDHeader->bitmap_pad = BITMAP_SCANLINE_PAD;
+#else
+ pXWDHeader->pixmap_width = pXWDHeader->window_width = pvfb->paddedWidth;
+ pXWDHeader->bitmap_unit = BITMAP_SCANLINE_UNIT_PROTO;
+ pXWDHeader->bitmap_pad = BITMAP_SCANLINE_PAD_PROTO;
+#endif
+ pXWDHeader->bits_per_pixel = pvfb->bitsPerPixel;
+ pXWDHeader->bytes_per_line = pvfb->paddedBytesWidth;
+ pXWDHeader->ncolors = pvfb->ncolors;
+
+ /* visual related fields are written when colormap is installed */
+
+ pXWDHeader->window_x = pXWDHeader->window_y = 0;
+ pXWDHeader->window_bdrwidth = 0;
+
+ /* write xwd "window" name: Xvfb hostname:server.screen */
+
+ if (-1 == gethostname(hostname, sizeof(hostname)))
+ hostname[0] = 0;
+ else
+ hostname[XWD_WINDOW_NAME_LEN-1] = 0;
+ sprintf((char *)(pXWDHeader+1), "Xvfb %s:%s.%d", hostname, display,
+ pScreen->myNum);
+
+ /* write colormap pixel slot values */
+
+ for (i = 0; i < pvfb->ncolors; i++)
+ {
+ pvfb->pXWDCmap[i].pixel = i;
+ }
+
+ /* byte swap to most significant byte first */
+
+ if (needswap)
+ {
+ SwapLongs((CARD32 *)pXWDHeader, SIZEOF(XWDheader)/4);
+ for (i = 0; i < pvfb->ncolors; i++)
+ {
+ register char n;
+ swapl(&pvfb->pXWDCmap[i].pixel, n);
+ }
+ }
+}
+
+
+static Bool
+vfbCursorOffScreen (ScreenPtr *ppScreen, int *x, int *y)
+{
+ return FALSE;
+}
+
+static void
+vfbCrossScreen (ScreenPtr pScreen, Bool entering)
+{
+}
+
+static miPointerScreenFuncRec vfbPointerCursorFuncs =
+{
+ vfbCursorOffScreen,
+ vfbCrossScreen,
+ miPointerWarpCursor
+};
+
+static Bool
+vfbCloseScreen(int index, ScreenPtr pScreen)
+{
+ vfbScreenInfoPtr pvfb = &vfbScreens[index];
+ int i;
+
+ pScreen->CloseScreen = pvfb->closeScreen;
+
+ /*
+ * XXX probably lots of stuff to clean. For now,
+ * clear installed colormaps so that server reset works correctly.
+ */
+ for (i = 0; i < screenInfo.numScreens; i++)
+ SetInstalledColormap(screenInfo.screens[i], NULL);
+
+ return pScreen->CloseScreen(index, pScreen);
+}
+
+static Bool
+vfbScreenInit(int index, ScreenPtr pScreen, int argc, char **argv)
+{
+ vfbScreenInfoPtr pvfb = &vfbScreens[index];
+ int dpix = monitorResolution, dpiy = monitorResolution;
+ int ret;
+ char *pbits;
+
+ if (dpix == 0)
+ dpix = 100;
+
+ if (dpiy == 0)
+ dpiy = 100;
+
+ pvfb->paddedBytesWidth = PixmapBytePad(pvfb->width, pvfb->depth);
+ pvfb->bitsPerPixel = vfbBitsPerPixel(pvfb->depth);
+ if (pvfb->bitsPerPixel >= 8 )
+ pvfb->paddedWidth = pvfb->paddedBytesWidth / (pvfb->bitsPerPixel / 8);
+ else
+ pvfb->paddedWidth = pvfb->paddedBytesWidth * 8;
+ pbits = vfbAllocateFramebufferMemory(pvfb);
+ if (!pbits) return FALSE;
+
+ switch (pvfb->depth) {
+ case 8:
+ miSetVisualTypesAndMasks (8,
+ ((1 << StaticGray) |
+ (1 << GrayScale) |
+ (1 << StaticColor) |
+ (1 << PseudoColor) |
+ (1 << TrueColor) |
+ (1 << DirectColor)),
+ 8, PseudoColor, 0, 0, 0);
+ break;
+ case 15:
+ miSetVisualTypesAndMasks (15,
+ ((1 << TrueColor) |
+ (1 << DirectColor)),
+ 8, TrueColor, 0x7c00, 0x03e0, 0x001f);
+ break;
+ case 16:
+ miSetVisualTypesAndMasks (16,
+ ((1 << TrueColor) |
+ (1 << DirectColor)),
+ 8, TrueColor, 0xf800, 0x07e0, 0x001f);
+ break;
+ case 24:
+ miSetVisualTypesAndMasks (24,
+ ((1 << TrueColor) |
+ (1 << DirectColor)),
+ 8, TrueColor, 0xff0000, 0x00ff00, 0x0000ff);
+ break;
+ case 30:
+ miSetVisualTypesAndMasks (30,
+ ((1 << TrueColor) |
+ (1 << DirectColor)),
+ 10, TrueColor, 0x3ff00000, 0x000ffc00, 0x000003ff);
+ break;
+ }
+
+ miSetPixmapDepths ();
+
+ ret = fbScreenInit(pScreen, pbits, pvfb->width, pvfb->height,
+ dpix, dpiy, pvfb->paddedWidth,pvfb->bitsPerPixel);
+ if (ret && Render)
+ fbPictureInit (pScreen, 0, 0);
+
+ if (!ret) return FALSE;
+
+ miInitializeBackingStore(pScreen);
+
+ /*
+ * Circumvent the backing store that was just initialised. This amounts
+ * to a truely bizarre way of initialising SaveDoomedAreas and friends.
+ */
+
+ pScreen->InstallColormap = vfbInstallColormap;
+ pScreen->UninstallColormap = vfbUninstallColormap;
+ pScreen->ListInstalledColormaps = vfbListInstalledColormaps;
+
+ pScreen->SaveScreen = vfbSaveScreen;
+ pScreen->StoreColors = vfbStoreColors;
+
+ miDCInitialize(pScreen, &vfbPointerCursorFuncs);
+
+ vfbWriteXWDFileHeader(pScreen);
+
+ pScreen->blackPixel = pvfb->blackPixel;
+ pScreen->whitePixel = pvfb->whitePixel;
+
+ ret = fbCreateDefColormap(pScreen);
+
+ miSetZeroLineBias(pScreen, pvfb->lineBias);
+
+ pvfb->closeScreen = pScreen->CloseScreen;
+ pScreen->CloseScreen = vfbCloseScreen;
+
+ return ret;
+
+} /* end vfbScreenInit */
+
+
+void
+InitOutput(ScreenInfo *screenInfo, int argc, char **argv)
+{
+ int i;
+ int NumFormats = 0;
+
+ /* initialize pixmap formats */
+
+ /* must have a pixmap depth to match every screen depth */
+ for (i = 0; i < vfbNumScreens; i++)
+ {
+ vfbPixmapDepths[vfbScreens[i].depth] = TRUE;
+ }
+
+ /* RENDER needs a good set of pixmaps. */
+ if (Render) {
+ vfbPixmapDepths[1] = TRUE;
+ vfbPixmapDepths[4] = TRUE;
+ vfbPixmapDepths[8] = TRUE;
+#if 0
+ vfbPixmapDepths[12] = TRUE;
+#endif
+/* vfbPixmapDepths[15] = TRUE; */
+ vfbPixmapDepths[16] = TRUE;
+ vfbPixmapDepths[24] = TRUE;
+#if 0
+ vfbPixmapDepths[30] = TRUE;
+#endif
+ vfbPixmapDepths[32] = TRUE;
+ }
+
+ for (i = 1; i <= 32; i++)
+ {
+ if (vfbPixmapDepths[i])
+ {
+ if (NumFormats >= MAXFORMATS)
+ FatalError ("MAXFORMATS is too small for this server\n");
+ screenInfo->formats[NumFormats].depth = i;
+ screenInfo->formats[NumFormats].bitsPerPixel = vfbBitsPerPixel(i);
+ screenInfo->formats[NumFormats].scanlinePad = BITMAP_SCANLINE_PAD;
+ NumFormats++;
+ }
+ }
+
+ screenInfo->imageByteOrder = IMAGE_BYTE_ORDER;
+ screenInfo->bitmapScanlineUnit = BITMAP_SCANLINE_UNIT;
+ screenInfo->bitmapScanlinePad = BITMAP_SCANLINE_PAD;
+ screenInfo->bitmapBitOrder = BITMAP_BIT_ORDER;
+ screenInfo->numPixmapFormats = NumFormats;
+
+ /* initialize screens */
+
+ if (vfbNumScreens < 1)
+ {
+ vfbScreens = &defaultScreenInfo;
+ vfbNumScreens = 1;
+ }
+ for (i = 0; i < vfbNumScreens; i++)
+ {
+ if (-1 == AddScreen(vfbScreenInit, argc, argv))
+ {
+ FatalError("Couldn't add screen %d", i);
+ }
+ }
+
+} /* end InitOutput */
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