diff options
Diffstat (limited to 'distrib/sdl-1.2.12/src/video/Xext/Xxf86dga/XF86DGA2.c')
| -rw-r--r-- | distrib/sdl-1.2.12/src/video/Xext/Xxf86dga/XF86DGA2.c | 988 |
1 files changed, 0 insertions, 988 deletions
diff --git a/distrib/sdl-1.2.12/src/video/Xext/Xxf86dga/XF86DGA2.c b/distrib/sdl-1.2.12/src/video/Xext/Xxf86dga/XF86DGA2.c deleted file mode 100644 index 3acf9f8..0000000 --- a/distrib/sdl-1.2.12/src/video/Xext/Xxf86dga/XF86DGA2.c +++ /dev/null @@ -1,988 +0,0 @@ -/* $XFree86: xc/lib/Xxf86dga/XF86DGA2.c,v 1.18 2001/08/17 13:27:51 dawes Exp $ */ -/* - -Copyright (c) 1995 Jon Tombs -Copyright (c) 1995,1996 The XFree86 Project, Inc - -*/ - -/* THIS IS NOT AN X CONSORTIUM STANDARD */ - -#ifdef __EMX__ /* needed here to override certain constants in X headers */ -#define INCL_DOS -#define INCL_DOSIOCTL -#include <os2.h> -#endif - -#define NEED_EVENTS -#define NEED_REPLIES - -#include <X11/Xlibint.h> -#include "../extensions/xf86dga.h" -#include "../extensions/xf86dgastr.h" -#include "../extensions/Xext.h" -#include "../extensions/extutil.h" -#include <stdio.h> - -#if defined(ENABLE_FBCON) /* Needed for framebuffer console support */ -#include <sys/ioctl.h> -#include <linux/fb.h> -#endif - -/* If you change this, change the Bases[] array below as well */ -#define MAX_HEADS 16 - -char *SDL_NAME(xdga_extension_name) = XF86DGANAME; - -static XExtensionInfo _xdga_info_data; -static XExtensionInfo *xdga_info = &_xdga_info_data; - - -Bool SDL_NAME(XDGAMapFramebuffer)(int, char *, unsigned char*, CARD32, CARD32, CARD32); -void SDL_NAME(XDGAUnmapFramebuffer)(int); -unsigned char* SDL_NAME(XDGAGetMappedMemory)(int); - -#define XDGACheckExtension(dpy,i,val) \ - XextCheckExtension (dpy, i, SDL_NAME(xdga_extension_name), val) - -/***************************************************************************** - * * - * private utility routines * - * * - *****************************************************************************/ - -static int xdga_close_display(Display *dpy, XExtCodes *codes); -static Bool xdga_wire_to_event(Display *dpy, XEvent *event, xEvent *wire_ev); -static Status xdga_event_to_wire(Display *dpy, XEvent *event, xEvent *wire_ev); - -static XExtensionHooks xdga_extension_hooks = { - NULL, /* create_gc */ - NULL, /* copy_gc */ - NULL, /* flush_gc */ - NULL, /* free_gc */ - NULL, /* create_font */ - NULL, /* free_font */ - xdga_close_display, /* close_display */ - xdga_wire_to_event, /* wire_to_event */ - xdga_event_to_wire, /* event_to_wire */ - NULL, /* error */ - NULL, /* error_string */ -}; - -static XEXT_GENERATE_CLOSE_DISPLAY (xdga_close_display, xdga_info) - - -XEXT_GENERATE_FIND_DISPLAY (SDL_NAME(xdga_find_display), xdga_info, - "XFree86-DGA", - &xdga_extension_hooks, - 0, NULL) - - -static Status -xdga_event_to_wire( - Display *dpy, - XEvent *event, - xEvent *wire_ev -){ - return True; -} - -static Bool -xdga_wire_to_event( - Display *dpy, - XEvent *event, - xEvent *wire_ev -){ - dgaEvent *wire = (dgaEvent *) wire_ev; - SDL_NAME(XDGAButtonEvent) *bevent; - SDL_NAME(XDGAKeyEvent) *kevent; - SDL_NAME(XDGAMotionEvent) *mevent; - XExtDisplayInfo *info = SDL_NAME(xdga_find_display) (dpy); - - XDGACheckExtension (dpy, info, False); - - switch((wire->u.u.type & 0x7f) - info->codes->first_event) { - case MotionNotify: - mevent = (SDL_NAME(XDGAMotionEvent)*)event; - mevent->type = wire->u.u.type & 0x7F; - mevent->serial = _XSetLastRequestRead(dpy, (xGenericReply *)wire); - mevent->display = dpy; - mevent->screen = wire->u.event.screen; - mevent->time = wire->u.event.time; - mevent->state = wire->u.event.state; - mevent->dx = wire->u.event.dx; - mevent->dy = wire->u.event.dy; - return True; - case ButtonPress: - case ButtonRelease: - bevent = (SDL_NAME(XDGAButtonEvent)*)event; - bevent->type = wire->u.u.type & 0x7F; - bevent->serial = _XSetLastRequestRead(dpy, (xGenericReply *)wire); - bevent->display = dpy; - bevent->screen = wire->u.event.screen; - bevent->time = wire->u.event.time; - bevent->state = wire->u.event.state; - bevent->button = wire->u.u.detail; - return True; - case KeyPress: - case KeyRelease: - kevent = (SDL_NAME(XDGAKeyEvent)*)event; - kevent->type = wire->u.u.type & 0x7F; - kevent->serial = _XSetLastRequestRead(dpy, (xGenericReply *)wire); - kevent->display = dpy; - kevent->screen = wire->u.event.screen; - kevent->time = wire->u.event.time; - kevent->state = wire->u.event.state; - kevent->keycode = wire->u.u.detail; - return True; - } - - return False; -} - - -Bool SDL_NAME(XDGAQueryExtension) ( - Display *dpy, - int *event_basep, - int *error_basep -){ - XExtDisplayInfo *info = SDL_NAME(xdga_find_display) (dpy); - - if (XextHasExtension(info)) { - *event_basep = info->codes->first_event; - *error_basep = info->codes->first_error; - return True; - } else { - return False; - } -} - - -Bool SDL_NAME(XDGAQueryVersion)( - Display *dpy, - int *majorVersion, - int *minorVersion -){ - XExtDisplayInfo *info = SDL_NAME(xdga_find_display) (dpy); - xXDGAQueryVersionReply rep; - xXDGAQueryVersionReq *req; - - XDGACheckExtension (dpy, info, False); - - LockDisplay(dpy); - GetReq(XDGAQueryVersion, req); - req->reqType = info->codes->major_opcode; - req->dgaReqType = X_XDGAQueryVersion; - if (!_XReply(dpy, (xReply *)&rep, 0, xFalse)) { - UnlockDisplay(dpy); - SyncHandle(); - return False; - } - *majorVersion = rep.majorVersion; - *minorVersion = rep.minorVersion; - UnlockDisplay(dpy); - SyncHandle(); - if (*majorVersion >= 2) - { - int i, j; - - for (i = 0, j = info->codes->first_event; - i < XF86DGANumberEvents; - i++, j++) - { - XESetWireToEvent(dpy, j, xdga_wire_to_event); - XESetEventToWire(dpy, j, xdga_event_to_wire); - } - SDL_NAME(XDGASetClientVersion)(dpy); - } - return True; -} - -Bool SDL_NAME(XDGASetClientVersion)( - Display *dpy -){ - XExtDisplayInfo *info = SDL_NAME(xdga_find_display) (dpy); - xXDGASetClientVersionReq *req; - - XDGACheckExtension (dpy, info, False); - - LockDisplay(dpy); - GetReq(XDGASetClientVersion, req); - req->reqType = info->codes->major_opcode; - req->dgaReqType = X_XDGASetClientVersion; - req->major = XDGA_MAJOR_VERSION; - req->minor = XDGA_MINOR_VERSION; - UnlockDisplay(dpy); - SyncHandle(); - return True; -} - -Bool SDL_NAME(XDGAOpenFramebuffer)( - Display *dpy, - int screen -){ - XExtDisplayInfo *info = SDL_NAME(xdga_find_display) (dpy); - xXDGAOpenFramebufferReply rep; - xXDGAOpenFramebufferReq *req; - char *deviceName = NULL; - Bool ret; - - XDGACheckExtension (dpy, info, False); - - LockDisplay(dpy); - GetReq(XDGAOpenFramebuffer, req); - req->reqType = info->codes->major_opcode; - req->dgaReqType = X_XDGAOpenFramebuffer; - req->screen = screen; - if (!_XReply(dpy, (xReply *)&rep, 0, xFalse)) { - UnlockDisplay(dpy); - SyncHandle(); - return False; - } - - if(rep.length) { - deviceName = Xmalloc(rep.length << 2); - _XRead(dpy, deviceName, rep.length << 2); - } - - ret = SDL_NAME(XDGAMapFramebuffer)(screen, deviceName, - (unsigned char*)(long)rep.mem1, - rep.size, rep.offset, rep.extra); - - if(deviceName) - Xfree(deviceName); - - UnlockDisplay(dpy); - SyncHandle(); - return ret; -} - -void SDL_NAME(XDGACloseFramebuffer)( - Display *dpy, - int screen -){ - XExtDisplayInfo *info = SDL_NAME(xdga_find_display) (dpy); - xXDGACloseFramebufferReq *req; - - XextSimpleCheckExtension (dpy, info, SDL_NAME(xdga_extension_name)); - - SDL_NAME(XDGAUnmapFramebuffer)(screen); - - LockDisplay(dpy); - GetReq(XDGACloseFramebuffer, req); - req->reqType = info->codes->major_opcode; - req->dgaReqType = X_XDGACloseFramebuffer; - req->screen = screen; - UnlockDisplay(dpy); - SyncHandle(); -} - - - -SDL_NAME(XDGAMode)* SDL_NAME(XDGAQueryModes)( - Display *dpy, - int screen, - int *num -){ - XExtDisplayInfo *dinfo = SDL_NAME(xdga_find_display) (dpy); - xXDGAQueryModesReply rep; - xXDGAQueryModesReq *req; - SDL_NAME(XDGAMode) *modes = NULL; - - *num = 0; - - XDGACheckExtension (dpy, dinfo, NULL); - - LockDisplay(dpy); - GetReq(XDGAQueryModes, req); - req->reqType = dinfo->codes->major_opcode; - req->dgaReqType = X_XDGAQueryModes; - req->screen = screen; - - if (_XReply(dpy, (xReply *)&rep, 0, xFalse)) { - if(rep.length) { - xXDGAModeInfo info; - int i, size; - char *offset; - - size = rep.length << 2; - size -= rep.number * sz_xXDGAModeInfo; /* find text size */ - modes = (SDL_NAME(XDGAMode)*)Xmalloc((rep.number * sizeof(SDL_NAME(XDGAMode))) + size); - offset = (char*)(&modes[rep.number]); /* start of text */ - - - if(modes) { - for(i = 0; i < rep.number; i++) { - _XRead(dpy, (char*)(&info), sz_xXDGAModeInfo); - - modes[i].num = info.num; - modes[i].verticalRefresh = - (float)info.vsync_num / (float)info.vsync_den; - modes[i].flags = info.flags; - modes[i].imageWidth = info.image_width; - modes[i].imageHeight = info.image_height; - modes[i].pixmapWidth = info.pixmap_width; - modes[i].pixmapHeight = info.pixmap_height; - modes[i].bytesPerScanline = info.bytes_per_scanline; - modes[i].byteOrder = info.byte_order; - modes[i].depth = info.depth; - modes[i].bitsPerPixel = info.bpp; - modes[i].redMask = info.red_mask; - modes[i].greenMask = info.green_mask; - modes[i].blueMask = info.blue_mask; - modes[i].visualClass = info.visual_class; - modes[i].viewportWidth = info.viewport_width; - modes[i].viewportHeight = info.viewport_height; - modes[i].xViewportStep = info.viewport_xstep; - modes[i].yViewportStep = info.viewport_ystep; - modes[i].maxViewportX = info.viewport_xmax; - modes[i].maxViewportY = info.viewport_ymax; - modes[i].viewportFlags = info.viewport_flags; - modes[i].reserved1 = info.reserved1; - modes[i].reserved2 = info.reserved2; - - _XRead(dpy, offset, info.name_size); - modes[i].name = offset; - offset += info.name_size; - } - *num = rep.number; - } else - _XEatData(dpy, rep.length << 2); - } - } - - UnlockDisplay(dpy); - SyncHandle(); - - return modes; -} - - -SDL_NAME(XDGADevice) * -SDL_NAME(XDGASetMode)( - Display *dpy, - int screen, - int mode -){ - XExtDisplayInfo *dinfo = SDL_NAME(xdga_find_display) (dpy); - xXDGASetModeReply rep; - xXDGASetModeReq *req; - SDL_NAME(XDGADevice) *dev = NULL; - Pixmap pid; - - XDGACheckExtension (dpy, dinfo, NULL); - - LockDisplay(dpy); - GetReq(XDGASetMode, req); - req->reqType = dinfo->codes->major_opcode; - req->dgaReqType = X_XDGASetMode; - req->screen = screen; - req->mode = mode; - req->pid = pid = XAllocID(dpy); - - if (_XReply(dpy, (xReply *)&rep, 0, xFalse)) { - if(rep.length) { - xXDGAModeInfo info; - int size; - - size = rep.length << 2; - size -= sz_xXDGAModeInfo; /* get text size */ - - dev = (SDL_NAME(XDGADevice)*)Xmalloc(sizeof(SDL_NAME(XDGADevice)) + size); - - if(dev) { - _XRead(dpy, (char*)(&info), sz_xXDGAModeInfo); - - dev->mode.num = info.num; - dev->mode.verticalRefresh = - (float)info.vsync_num / (float)info.vsync_den; - dev->mode.flags = info.flags; - dev->mode.imageWidth = info.image_width; - dev->mode.imageHeight = info.image_height; - dev->mode.pixmapWidth = info.pixmap_width; - dev->mode.pixmapHeight = info.pixmap_height; - dev->mode.bytesPerScanline = info.bytes_per_scanline; - dev->mode.byteOrder = info.byte_order; - dev->mode.depth = info.depth; - dev->mode.bitsPerPixel = info.bpp; - dev->mode.redMask = info.red_mask; - dev->mode.greenMask = info.green_mask; - dev->mode.blueMask = info.blue_mask; - dev->mode.visualClass = info.visual_class; - dev->mode.viewportWidth = info.viewport_width; - dev->mode.viewportHeight = info.viewport_height; - dev->mode.xViewportStep = info.viewport_xstep; - dev->mode.yViewportStep = info.viewport_ystep; - dev->mode.maxViewportX = info.viewport_xmax; - dev->mode.maxViewportY = info.viewport_ymax; - dev->mode.viewportFlags = info.viewport_flags; - dev->mode.reserved1 = info.reserved1; - dev->mode.reserved2 = info.reserved2; - - dev->mode.name = (char*)(&dev[1]); - _XRead(dpy, dev->mode.name, info.name_size); - - dev->pixmap = (rep.flags & XDGAPixmap) ? pid : 0; - dev->data = SDL_NAME(XDGAGetMappedMemory)(screen); - - if(dev->data) - dev->data += rep.offset; - } - /* not sure what to do if the allocation fails */ - } - } - - UnlockDisplay(dpy); - SyncHandle(); - - return dev; -} - - -void SDL_NAME(XDGASetViewport)( - Display *dpy, - int screen, - int x, - int y, - int flags -){ - XExtDisplayInfo *info = SDL_NAME(xdga_find_display) (dpy); - xXDGASetViewportReq *req; - - XextSimpleCheckExtension (dpy, info, SDL_NAME(xdga_extension_name)); - - LockDisplay(dpy); - GetReq(XDGASetViewport, req); - req->reqType = info->codes->major_opcode; - req->dgaReqType = X_XDGASetViewport; - req->screen = screen; - req->x = x; - req->y = y; - req->flags = flags; - UnlockDisplay(dpy); - SyncHandle(); -} - - -void SDL_NAME(XDGAInstallColormap)( - Display *dpy, - int screen, - Colormap cmap -){ - XExtDisplayInfo *info = SDL_NAME(xdga_find_display) (dpy); - xXDGAInstallColormapReq *req; - - XextSimpleCheckExtension (dpy, info, SDL_NAME(xdga_extension_name)); - - LockDisplay(dpy); - GetReq(XDGAInstallColormap, req); - req->reqType = info->codes->major_opcode; - req->dgaReqType = X_XDGAInstallColormap; - req->screen = screen; - req->cmap = cmap; - UnlockDisplay(dpy); - SyncHandle(); -} - -void SDL_NAME(XDGASelectInput)( - Display *dpy, - int screen, - long mask -){ - XExtDisplayInfo *info = SDL_NAME(xdga_find_display) (dpy); - xXDGASelectInputReq *req; - - XextSimpleCheckExtension (dpy, info, SDL_NAME(xdga_extension_name)); - - LockDisplay(dpy); - GetReq(XDGASelectInput, req); - req->reqType = info->codes->major_opcode; - req->dgaReqType = X_XDGASelectInput; - req->screen = screen; - req->mask = mask; - UnlockDisplay(dpy); - SyncHandle(); -} - -void SDL_NAME(XDGAFillRectangle)( - Display *dpy, - int screen, - int x, - int y, - unsigned int width, - unsigned int height, - unsigned long color -){ - XExtDisplayInfo *info = SDL_NAME(xdga_find_display) (dpy); - xXDGAFillRectangleReq *req; - - XextSimpleCheckExtension (dpy, info, SDL_NAME(xdga_extension_name)); - - LockDisplay(dpy); - GetReq(XDGAFillRectangle, req); - req->reqType = info->codes->major_opcode; - req->dgaReqType = X_XDGAFillRectangle; - req->screen = screen; - req->x = x; - req->y = y; - req->width = width; - req->height = height; - req->color = color; - UnlockDisplay(dpy); - SyncHandle(); -} - -void SDL_NAME(XDGACopyArea)( - Display *dpy, - int screen, - int srcx, - int srcy, - unsigned int width, - unsigned int height, - int dstx, - int dsty -){ - XExtDisplayInfo *info = SDL_NAME(xdga_find_display) (dpy); - xXDGACopyAreaReq *req; - - XextSimpleCheckExtension (dpy, info, SDL_NAME(xdga_extension_name)); - - LockDisplay(dpy); - GetReq(XDGACopyArea, req); - req->reqType = info->codes->major_opcode; - req->dgaReqType = X_XDGACopyArea; - req->screen = screen; - req->srcx = srcx; - req->srcy = srcy; - req->width = width; - req->height = height; - req->dstx = dstx; - req->dsty = dsty; - UnlockDisplay(dpy); - SyncHandle(); -} - -void SDL_NAME(XDGACopyTransparentArea)( - Display *dpy, - int screen, - int srcx, - int srcy, - unsigned int width, - unsigned int height, - int dstx, - int dsty, - unsigned long key -){ - XExtDisplayInfo *info = SDL_NAME(xdga_find_display) (dpy); - xXDGACopyTransparentAreaReq *req; - - XextSimpleCheckExtension (dpy, info, SDL_NAME(xdga_extension_name)); - - LockDisplay(dpy); - GetReq(XDGACopyTransparentArea, req); - req->reqType = info->codes->major_opcode; - req->dgaReqType = X_XDGACopyTransparentArea; - req->screen = screen; - req->srcx = srcx; - req->srcy = srcy; - req->width = width; - req->height = height; - req->dstx = dstx; - req->dsty = dsty; - req->key = key; - UnlockDisplay(dpy); - SyncHandle(); -} - - -int SDL_NAME(XDGAGetViewportStatus)( - Display *dpy, - int screen -){ - XExtDisplayInfo *info = SDL_NAME(xdga_find_display) (dpy); - xXDGAGetViewportStatusReply rep; - xXDGAGetViewportStatusReq *req; - int status = 0; - - XDGACheckExtension (dpy, info, 0); - - LockDisplay(dpy); - GetReq(XDGAGetViewportStatus, req); - req->reqType = info->codes->major_opcode; - req->dgaReqType = X_XDGAGetViewportStatus; - req->screen = screen; - if (!_XReply(dpy, (xReply *)&rep, 0, xFalse)) - status = rep.status; - UnlockDisplay(dpy); - SyncHandle(); - return status; -} - -void SDL_NAME(XDGASync)( - Display *dpy, - int screen -){ - XExtDisplayInfo *info = SDL_NAME(xdga_find_display) (dpy); - xXDGASyncReply rep; - xXDGASyncReq *req; - - XextSimpleCheckExtension (dpy, info, SDL_NAME(xdga_extension_name)); - - LockDisplay(dpy); - GetReq(XDGASync, req); - req->reqType = info->codes->major_opcode; - req->dgaReqType = X_XDGASync; - req->screen = screen; - _XReply(dpy, (xReply *)&rep, 0, xFalse); - UnlockDisplay(dpy); - SyncHandle(); -} - - -void SDL_NAME(XDGAChangePixmapMode)( - Display *dpy, - int screen, - int *x, - int *y, - int mode -){ - XExtDisplayInfo *info = SDL_NAME(xdga_find_display) (dpy); - xXDGAChangePixmapModeReq *req; - xXDGAChangePixmapModeReply rep; - - XextSimpleCheckExtension (dpy, info, SDL_NAME(xdga_extension_name)); - - LockDisplay(dpy); - GetReq(XDGAChangePixmapMode, req); - req->reqType = info->codes->major_opcode; - req->dgaReqType = X_XDGAChangePixmapMode; - req->screen = screen; - req->x = *x; - req->y = *y; - req->flags = mode; - _XReply(dpy, (xReply *)&rep, 0, xFalse); - *x = rep.x; - *y = rep.y; - UnlockDisplay(dpy); - SyncHandle(); -} - -Colormap SDL_NAME(XDGACreateColormap)( - Display *dpy, - int screen, - SDL_NAME(XDGADevice) *dev, - int alloc -){ - XExtDisplayInfo *info = SDL_NAME(xdga_find_display) (dpy); - xXDGACreateColormapReq *req; - Colormap cid; - - XDGACheckExtension (dpy, info, -1); - - LockDisplay(dpy); - GetReq(XDGACreateColormap, req); - req->reqType = info->codes->major_opcode; - req->dgaReqType = X_XDGACreateColormap; - req->screen = screen; - req->mode = dev->mode.num; - req->alloc = alloc; - cid = req->id = XAllocID(dpy); - UnlockDisplay(dpy); - SyncHandle(); - - return cid; -} - - -void SDL_NAME(XDGAKeyEventToXKeyEvent)( - SDL_NAME(XDGAKeyEvent)* dk, - XKeyEvent* xk -){ - xk->type = dk->type; - xk->serial = dk->serial; - xk->send_event = False; - xk->display = dk->display; - xk->window = RootWindow(dk->display, dk->screen); - xk->root = xk->window; - xk->subwindow = None; - xk->time = dk->time; - xk->x = xk->y = xk->x_root = xk->y_root = 0; - xk->state = dk->state; - xk->keycode = dk->keycode; - xk->same_screen = True; -} - -#include <X11/Xmd.h> -#include <stdlib.h> -#include <stdio.h> -#include <fcntl.h> -#if defined(ISC) -# define HAS_SVR3_MMAP -# include <sys/types.h> -# include <errno.h> - -# include <sys/at_ansi.h> -# include <sys/kd.h> - -# include <sys/sysmacros.h> -# include <sys/immu.h> -# include <sys/region.h> - -# include <sys/mmap.h> -#else -# if !defined(Lynx) -# if !defined(__EMX__) -# include <sys/mman.h> -# endif -# else -# include <sys/types.h> -# include <errno.h> -# include <smem.h> -# endif -#endif -#include <sys/wait.h> -#include <signal.h> -#include <unistd.h> - -#if defined(SVR4) && !defined(sun) && !defined(SCO325) -#define DEV_MEM "/dev/pmem" -#elif defined(SVR4) && defined(sun) -#define DEV_MEM "/dev/xsvc" -#else -#define DEV_MEM "/dev/mem" -#endif - - - -typedef struct _DGAMapRec{ - unsigned char *physical; - unsigned char *virtual; - CARD32 size; - int fd; - int screen; - struct _DGAMapRec *next; -} DGAMapRec, *DGAMapPtr; - -static Bool -DGAMapPhysical(int, char*, unsigned char*, CARD32, CARD32, CARD32, DGAMapPtr); -static void DGAUnmapPhysical(DGAMapPtr); - -static DGAMapPtr _Maps = NULL; - - -unsigned char* -SDL_NAME(XDGAGetMappedMemory)(int screen) -{ - DGAMapPtr pMap = _Maps; - unsigned char *pntr = NULL; - - while(pMap != NULL) { - if(pMap->screen == screen) { - pntr = pMap->virtual; - break; - } - pMap = pMap->next; - } - - return pntr; -} - -Bool -SDL_NAME(XDGAMapFramebuffer)( - int screen, - char *name, /* optional device name */ - unsigned char* base, /* physical memory */ - CARD32 size, /* size */ - CARD32 offset, /* optional offset */ - CARD32 extra /* optional extra data */ -){ - DGAMapPtr pMap = _Maps; - Bool result; - - /* is it already mapped ? */ - while(pMap != NULL) { - if(pMap->screen == screen) - return True; - pMap = pMap->next; - } - - if(extra & XDGANeedRoot) { - /* we should probably check if we have root permissions and - return False here */ - - } - - pMap = (DGAMapPtr)Xmalloc(sizeof(DGAMapRec)); - - result = DGAMapPhysical(screen, name, base, size, offset, extra, pMap); - - if(result) { - pMap->next = _Maps; - _Maps = pMap; - } else - Xfree(pMap); - - return result; -} - -void -SDL_NAME(XDGAUnmapFramebuffer)(int screen) -{ - DGAMapPtr pMap = _Maps; - DGAMapPtr pPrev = NULL; - - /* is it already mapped */ - while(pMap != NULL) { - if(pMap->screen == screen) - break; - pPrev = pMap; - pMap = pMap->next; - } - - if(!pMap) - return; - - DGAUnmapPhysical(pMap); - - if(!pPrev) - _Maps = pMap->next; - else - pPrev->next = pMap->next; - - Xfree(pMap); -} - - -static Bool -DGAMapPhysical( - int screen, - char *name, /* optional device name */ - unsigned char* base, /* physical memory */ - CARD32 size, /* size */ - CARD32 offset, /* optional offset */ - CARD32 extra, /* optional extra data */ - DGAMapPtr pMap -) { -#if defined(ISC) && defined(HAS_SVR3_MMAP) - struct kd_memloc mloc; -#elif defined(__EMX__) - APIRET rc; - ULONG action; - HFILE hfd; -#endif - - base += offset; - - pMap->screen = screen; - pMap->physical = base; - pMap->size = size; - -#if defined(ISC) && defined(HAS_SVR3_MMAP) - if ((pMap->fd = open("/dev/mmap", O_RDWR)) < 0) - return False; - mloc.vaddr = (char *)0; - mloc.physaddr = (char *)base; - mloc.length = size; - mloc.ioflg=1; - - if ((pMap->virtual = (void *)ioctl(pMap->fd, MAP, &mloc)) == (void *)-1) - return False; -#elif defined (__EMX__) - /* - * Dragon warning here! /dev/pmap$ is never closed, except on progam exit. - * Consecutive calling of this routine will make PMAP$ driver run out - * of memory handles. Some umap/close mechanism should be provided - */ - - rc = DosOpen("/dev/pmap$", &hfd, &action, 0, FILE_NORMAL, FILE_OPEN, - OPEN_ACCESS_READWRITE | OPEN_SHARE_DENYNONE, (PEAOP2)NULL); - if (rc != 0) - return False; - { - struct map_ioctl { - union { - ULONG phys; - void* user; - } a; - ULONG size; - } pmap,dmap; - ULONG plen,dlen; -#define XFREE86_PMAP 0x76 -#define PMAP_MAP 0x44 - - pmap.a.phys = base; - pmap.size = size; - rc = DosDevIOCtl(hfd, XFREE86_PMAP, PMAP_MAP, - (PULONG)&pmap, sizeof(pmap), &plen, - (PULONG)&dmap, sizeof(dmap), &dlen); - if (rc == 0) { - pMap->virtual = dmap.a.user; - } - } - if (rc != 0) - return False; -#elif defined (Lynx) - pMap->virtual = smem_create("XF86DGA", (char*)base, size, SM_READ|SM_WRITE); -#else -#ifndef MAP_FILE -#define MAP_FILE 0 -#endif - if (!name) - name = DEV_MEM; - if ((pMap->fd = open(name, O_RDWR)) < 0) -#if defined(ENABLE_FBCON) - { /* /dev/fb0 fallback added by Sam Lantinga <hercules@lokigames.com> */ - /* Try to fall back to /dev/fb on Linux - FIXME: verify the device */ - struct fb_fix_screeninfo finfo; - - if ((pMap->fd = open("/dev/fb0", O_RDWR)) < 0) { - return False; - } - /* The useable framebuffer console memory may not be the whole - framebuffer that X has access to. :-( - */ - if ( ioctl(pMap->fd, FBIOGET_FSCREENINFO, &finfo) < 0 ) { - close(pMap->fd); - return False; - } - /* Warning: On PPC, the size and virtual need to be offset by: - (((long)finfo.smem_start) - - (((long)finfo.smem_start)&~(PAGE_SIZE-1))) - */ - base = 0; - size = pMap->size = finfo.smem_len; - } -#else - return False; -#endif - pMap->virtual = mmap(NULL, size, PROT_READ | PROT_WRITE, - MAP_FILE | MAP_SHARED, pMap->fd, (off_t)base); - if (pMap->virtual == (void *)-1) - return False; -#endif - -#if !defined(ISC) && !defined(HAS_SVR3_MMAP) && !defined(Lynx) \ - && !defined(__EMX__) - mprotect(pMap->virtual, size, PROT_READ | PROT_WRITE); -#endif - - return True; -} - - - -static void -DGAUnmapPhysical(DGAMapPtr pMap) -{ -#if !defined(ISC) && !defined(HAS_SVR3_MMAP) && !defined(Lynx) \ - && !defined(__EMX__) - mprotect(pMap->virtual,pMap->size, PROT_READ); -#elif defined(Lynx) - /* XXX this doesn't allow enable after disable */ - smem_create(NULL, pMap->virtual, pMap->size, SM_DETACH); - smem_remove("XF86DGA"); -#endif - - - /* We need to unmap and close too !!!!!!!!!!*/ -} |