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Diffstat (limited to 'src/glx/XF86dri.c')
| -rw-r--r-- | src/glx/XF86dri.c | 637 |
1 files changed, 637 insertions, 0 deletions
diff --git a/src/glx/XF86dri.c b/src/glx/XF86dri.c new file mode 100644 index 00000000000..248d96ac5de --- /dev/null +++ b/src/glx/XF86dri.c @@ -0,0 +1,637 @@ +/************************************************************************** + +Copyright 1998-1999 Precision Insight, Inc., Cedar Park, Texas. +Copyright 2000 VA Linux Systems, Inc. +All Rights Reserved. + +Permission is hereby granted, free of charge, to any person obtaining a +copy of this software and associated documentation files (the +"Software"), to deal in the Software without restriction, including +without limitation the rights to use, copy, modify, merge, publish, +distribute, sub license, 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 (including the +next paragraph) 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 NON-INFRINGEMENT. +IN NO EVENT SHALL PRECISION INSIGHT AND/OR ITS SUPPLIERS 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. + +**************************************************************************/ + +/* + * Authors: + * Kevin E. Martin <[email protected]> + * Jens Owen <[email protected]> + * Rickard E. (Rik) Faith <[email protected]> + * + */ + +/* THIS IS NOT AN X CONSORTIUM STANDARD */ + +#ifdef GLX_DIRECT_RENDERING + +#define NEED_REPLIES +#include <X11/Xlibint.h> +#include <X11/extensions/Xext.h> +#include <X11/extensions/extutil.h> +#include "xf86dristr.h" + + +#if defined(__GNUC__) && (__GNUC__ * 100 + __GNUC_MINOR__) >= 303 +# define PUBLIC __attribute__((visibility("default"))) +# define USED __attribute__((used)) +#else +# define PUBLIC +# define USED +#endif + + + +static XExtensionInfo _xf86dri_info_data; +static XExtensionInfo *xf86dri_info = &_xf86dri_info_data; +static char xf86dri_extension_name[] = XF86DRINAME; + +#define XF86DRICheckExtension(dpy,i,val) \ + XextCheckExtension (dpy, i, xf86dri_extension_name, val) + +/***************************************************************************** + * * + * private utility routines * + * * + *****************************************************************************/ + +static int close_display(Display * dpy, XExtCodes * extCodes); +static /* const */ XExtensionHooks xf86dri_extension_hooks = { + NULL, /* create_gc */ + NULL, /* copy_gc */ + NULL, /* flush_gc */ + NULL, /* free_gc */ + NULL, /* create_font */ + NULL, /* free_font */ + close_display, /* close_display */ + NULL, /* wire_to_event */ + NULL, /* event_to_wire */ + NULL, /* error */ + NULL, /* error_string */ +}; + +static +XEXT_GENERATE_FIND_DISPLAY(find_display, xf86dri_info, + xf86dri_extension_name, + &xf86dri_extension_hooks, 0, NULL) + +static +XEXT_GENERATE_CLOSE_DISPLAY(close_display, xf86dri_info) + + +/***************************************************************************** + * * + * public XFree86-DRI Extension routines * + * * + *****************************************************************************/ +#if 0 +#include <stdio.h> +#define TRACE(msg) fprintf(stderr,"XF86DRI%s\n", msg); +#else +#define TRACE(msg) +#endif + +Bool +XF86DRIQueryExtension(Display * dpy, int *event_basep, + int *error_basep) +{ + XExtDisplayInfo *info = find_display(dpy); + + TRACE("QueryExtension..."); + if (XextHasExtension(info)) { + *event_basep = info->codes->first_event; + *error_basep = info->codes->first_error; + TRACE("QueryExtension... return True"); + return True; + } + else { + TRACE("QueryExtension... return False"); + return False; + } +} + +Bool +XF86DRIQueryVersion(Display * dpy, int *majorVersion, int *minorVersion, + int *patchVersion) +{ + XExtDisplayInfo *info = find_display(dpy); + xXF86DRIQueryVersionReply rep; + xXF86DRIQueryVersionReq *req; + + TRACE("QueryVersion..."); + XF86DRICheckExtension(dpy, info, False); + + LockDisplay(dpy); + GetReq(XF86DRIQueryVersion, req); + req->reqType = info->codes->major_opcode; + req->driReqType = X_XF86DRIQueryVersion; + if (!_XReply(dpy, (xReply *) & rep, 0, xFalse)) { + UnlockDisplay(dpy); + SyncHandle(); + TRACE("QueryVersion... return False"); + return False; + } + *majorVersion = rep.majorVersion; + *minorVersion = rep.minorVersion; + *patchVersion = rep.patchVersion; + UnlockDisplay(dpy); + SyncHandle(); + TRACE("QueryVersion... return True"); + return True; +} + +Bool +XF86DRIQueryDirectRenderingCapable(Display * dpy, int screen, + Bool * isCapable) +{ + XExtDisplayInfo *info = find_display(dpy); + xXF86DRIQueryDirectRenderingCapableReply rep; + xXF86DRIQueryDirectRenderingCapableReq *req; + + TRACE("QueryDirectRenderingCapable..."); + XF86DRICheckExtension(dpy, info, False); + + LockDisplay(dpy); + GetReq(XF86DRIQueryDirectRenderingCapable, req); + req->reqType = info->codes->major_opcode; + req->driReqType = X_XF86DRIQueryDirectRenderingCapable; + req->screen = screen; + if (!_XReply(dpy, (xReply *) & rep, 0, xFalse)) { + UnlockDisplay(dpy); + SyncHandle(); + TRACE("QueryDirectRenderingCapable... return False"); + return False; + } + *isCapable = rep.isCapable; + UnlockDisplay(dpy); + SyncHandle(); + TRACE("QueryDirectRenderingCapable... return True"); + return True; +} + +Bool +XF86DRIOpenConnection(Display * dpy, int screen, drm_handle_t * hSAREA, + char **busIdString) +{ + XExtDisplayInfo *info = find_display(dpy); + xXF86DRIOpenConnectionReply rep; + xXF86DRIOpenConnectionReq *req; + + TRACE("OpenConnection..."); + XF86DRICheckExtension(dpy, info, False); + + LockDisplay(dpy); + GetReq(XF86DRIOpenConnection, req); + req->reqType = info->codes->major_opcode; + req->driReqType = X_XF86DRIOpenConnection; + req->screen = screen; + if (!_XReply(dpy, (xReply *) & rep, 0, xFalse)) { + UnlockDisplay(dpy); + SyncHandle(); + TRACE("OpenConnection... return False"); + return False; + } + + *hSAREA = rep.hSAREALow; + if (sizeof(drm_handle_t) == 8) { + int shift = 32; /* var to prevent warning on next line */ + *hSAREA |= ((drm_handle_t) rep.hSAREAHigh) << shift; + } + + if (rep.length) { + if (!(*busIdString = (char *) Xcalloc(rep.busIdStringLength + 1, 1))) { + _XEatData(dpy, ((rep.busIdStringLength + 3) & ~3)); + UnlockDisplay(dpy); + SyncHandle(); + TRACE("OpenConnection... return False"); + return False; + } + _XReadPad(dpy, *busIdString, rep.busIdStringLength); + } + else { + *busIdString = NULL; + } + UnlockDisplay(dpy); + SyncHandle(); + TRACE("OpenConnection... return True"); + return True; +} + +Bool +XF86DRIAuthConnection(Display * dpy, int screen, drm_magic_t magic) +{ + XExtDisplayInfo *info = find_display(dpy); + xXF86DRIAuthConnectionReq *req; + xXF86DRIAuthConnectionReply rep; + + TRACE("AuthConnection..."); + XF86DRICheckExtension(dpy, info, False); + + LockDisplay(dpy); + GetReq(XF86DRIAuthConnection, req); + req->reqType = info->codes->major_opcode; + req->driReqType = X_XF86DRIAuthConnection; + req->screen = screen; + req->magic = magic; + rep.authenticated = 0; + if (!_XReply(dpy, (xReply *) & rep, 0, xFalse) || !rep.authenticated) { + UnlockDisplay(dpy); + SyncHandle(); + TRACE("AuthConnection... return False"); + return False; + } + UnlockDisplay(dpy); + SyncHandle(); + TRACE("AuthConnection... return True"); + return True; +} + +Bool +XF86DRICloseConnection(Display * dpy, int screen) +{ + XExtDisplayInfo *info = find_display(dpy); + xXF86DRICloseConnectionReq *req; + + TRACE("CloseConnection..."); + + XF86DRICheckExtension(dpy, info, False); + + LockDisplay(dpy); + GetReq(XF86DRICloseConnection, req); + req->reqType = info->codes->major_opcode; + req->driReqType = X_XF86DRICloseConnection; + req->screen = screen; + UnlockDisplay(dpy); + SyncHandle(); + TRACE("CloseConnection... return True"); + return True; +} + +Bool +XF86DRIGetClientDriverName(Display * dpy, int screen, + int *ddxDriverMajorVersion, + int *ddxDriverMinorVersion, + int *ddxDriverPatchVersion, + char **clientDriverName) +{ + XExtDisplayInfo *info = find_display(dpy); + xXF86DRIGetClientDriverNameReply rep; + xXF86DRIGetClientDriverNameReq *req; + + TRACE("GetClientDriverName..."); + XF86DRICheckExtension(dpy, info, False); + + LockDisplay(dpy); + GetReq(XF86DRIGetClientDriverName, req); + req->reqType = info->codes->major_opcode; + req->driReqType = X_XF86DRIGetClientDriverName; + req->screen = screen; + if (!_XReply(dpy, (xReply *) & rep, 0, xFalse)) { + UnlockDisplay(dpy); + SyncHandle(); + TRACE("GetClientDriverName... return False"); + return False; + } + + *ddxDriverMajorVersion = rep.ddxDriverMajorVersion; + *ddxDriverMinorVersion = rep.ddxDriverMinorVersion; + *ddxDriverPatchVersion = rep.ddxDriverPatchVersion; + + if (rep.length) { + if (! + (*clientDriverName = + (char *) Xcalloc(rep.clientDriverNameLength + 1, 1))) { + _XEatData(dpy, ((rep.clientDriverNameLength + 3) & ~3)); + UnlockDisplay(dpy); + SyncHandle(); + TRACE("GetClientDriverName... return False"); + return False; + } + _XReadPad(dpy, *clientDriverName, rep.clientDriverNameLength); + } + else { + *clientDriverName = NULL; + } + UnlockDisplay(dpy); + SyncHandle(); + TRACE("GetClientDriverName... return True"); + return True; +} + +Bool +XF86DRICreateContextWithConfig(Display * dpy, int screen, int configID, + XID * context, drm_context_t * hHWContext) +{ + XExtDisplayInfo *info = find_display(dpy); + xXF86DRICreateContextReply rep; + xXF86DRICreateContextReq *req; + + TRACE("CreateContext..."); + XF86DRICheckExtension(dpy, info, False); + + LockDisplay(dpy); + GetReq(XF86DRICreateContext, req); + req->reqType = info->codes->major_opcode; + req->driReqType = X_XF86DRICreateContext; + req->visual = configID; + req->screen = screen; + *context = XAllocID(dpy); + req->context = *context; + if (!_XReply(dpy, (xReply *) & rep, 0, xFalse)) { + UnlockDisplay(dpy); + SyncHandle(); + TRACE("CreateContext... return False"); + return False; + } + *hHWContext = rep.hHWContext; + UnlockDisplay(dpy); + SyncHandle(); + TRACE("CreateContext... return True"); + return True; +} + +Bool +XF86DRICreateContext(Display * dpy, int screen, Visual * visual, + XID * context, drm_context_t * hHWContext) +{ + return XF86DRICreateContextWithConfig(dpy, screen, visual->visualid, + context, hHWContext); +} + +Bool +XF86DRIDestroyContext(Display * dpy, int screen, XID context) +{ + XExtDisplayInfo *info = find_display(dpy); + xXF86DRIDestroyContextReq *req; + + TRACE("DestroyContext..."); + XF86DRICheckExtension(dpy, info, False); + + LockDisplay(dpy); + GetReq(XF86DRIDestroyContext, req); + req->reqType = info->codes->major_opcode; + req->driReqType = X_XF86DRIDestroyContext; + req->screen = screen; + req->context = context; + UnlockDisplay(dpy); + SyncHandle(); + TRACE("DestroyContext... return True"); + return True; +} + +Bool +XF86DRICreateDrawable(Display * dpy, int screen, + XID drawable, drm_drawable_t * hHWDrawable) +{ + XExtDisplayInfo *info = find_display(dpy); + xXF86DRICreateDrawableReply rep; + xXF86DRICreateDrawableReq *req; + + TRACE("CreateDrawable..."); + XF86DRICheckExtension(dpy, info, False); + + LockDisplay(dpy); + GetReq(XF86DRICreateDrawable, req); + req->reqType = info->codes->major_opcode; + req->driReqType = X_XF86DRICreateDrawable; + req->screen = screen; + req->drawable = drawable; + if (!_XReply(dpy, (xReply *) & rep, 0, xFalse)) { + UnlockDisplay(dpy); + SyncHandle(); + TRACE("CreateDrawable... return False"); + return False; + } + *hHWDrawable = rep.hHWDrawable; + UnlockDisplay(dpy); + SyncHandle(); + TRACE("CreateDrawable... return True"); + return True; +} + +static int +noopErrorHandler(Display * dpy, XErrorEvent * xerr) +{ + return 0; +} + +Bool +XF86DRIDestroyDrawable(Display * dpy, int screen, XID drawable) +{ + XExtDisplayInfo *info = find_display(dpy); + xXF86DRIDestroyDrawableReq *req; + int (*oldXErrorHandler) (Display *, XErrorEvent *); + + TRACE("DestroyDrawable..."); + XF86DRICheckExtension(dpy, info, False); + + /* This is called from the DRI driver, which used call it like this + * + * if (windowExists(drawable)) + * destroyDrawable(drawable); + * + * which is a textbook race condition - the window may disappear + * from the server between checking for its existance and + * destroying it. Instead we change the semantics of + * __DRIinterfaceMethodsRec::destroyDrawable() to succeed even if + * the windows is gone, by wrapping the destroy call in an error + * handler. */ + + XSync(dpy, False); + oldXErrorHandler = XSetErrorHandler(noopErrorHandler); + + LockDisplay(dpy); + GetReq(XF86DRIDestroyDrawable, req); + req->reqType = info->codes->major_opcode; + req->driReqType = X_XF86DRIDestroyDrawable; + req->screen = screen; + req->drawable = drawable; + UnlockDisplay(dpy); + SyncHandle(); + + XSetErrorHandler(oldXErrorHandler); + + TRACE("DestroyDrawable... return True"); + return True; +} + +Bool +XF86DRIGetDrawableInfo(Display * dpy, int screen, Drawable drawable, + unsigned int *index, unsigned int *stamp, + int *X, int *Y, int *W, int *H, + int *numClipRects, drm_clip_rect_t ** pClipRects, + int *backX, int *backY, + int *numBackClipRects, + drm_clip_rect_t ** pBackClipRects) +{ + XExtDisplayInfo *info = find_display(dpy); + xXF86DRIGetDrawableInfoReply rep; + xXF86DRIGetDrawableInfoReq *req; + int total_rects; + + TRACE("GetDrawableInfo..."); + XF86DRICheckExtension(dpy, info, False); + + LockDisplay(dpy); + GetReq(XF86DRIGetDrawableInfo, req); + req->reqType = info->codes->major_opcode; + req->driReqType = X_XF86DRIGetDrawableInfo; + req->screen = screen; + req->drawable = drawable; + + if (!_XReply(dpy, (xReply *) & rep, 1, xFalse)) { + UnlockDisplay(dpy); + SyncHandle(); + TRACE("GetDrawableInfo... return False"); + return False; + } + *index = rep.drawableTableIndex; + *stamp = rep.drawableTableStamp; + *X = (int) rep.drawableX; + *Y = (int) rep.drawableY; + *W = (int) rep.drawableWidth; + *H = (int) rep.drawableHeight; + *numClipRects = rep.numClipRects; + total_rects = *numClipRects; + + *backX = rep.backX; + *backY = rep.backY; + *numBackClipRects = rep.numBackClipRects; + total_rects += *numBackClipRects; + +#if 0 + /* Because of the fix in Xserver/GL/dri/xf86dri.c, this check breaks + * backwards compatibility (Because of the >> 2 shift) but the fix + * enables multi-threaded apps to work. + */ + if (rep.length != ((((SIZEOF(xXF86DRIGetDrawableInfoReply) - + SIZEOF(xGenericReply) + + total_rects * sizeof(drm_clip_rect_t)) + + 3) & ~3) >> 2)) { + _XEatData(dpy, rep.length); + UnlockDisplay(dpy); + SyncHandle(); + TRACE("GetDrawableInfo... return False"); + return False; + } +#endif + + if (*numClipRects) { + int len = sizeof(drm_clip_rect_t) * (*numClipRects); + + *pClipRects = (drm_clip_rect_t *) Xcalloc(len, 1); + if (*pClipRects) + _XRead(dpy, (char *) *pClipRects, len); + } + else { + *pClipRects = NULL; + } + + if (*numBackClipRects) { + int len = sizeof(drm_clip_rect_t) * (*numBackClipRects); + + *pBackClipRects = (drm_clip_rect_t *) Xcalloc(len, 1); + if (*pBackClipRects) + _XRead(dpy, (char *) *pBackClipRects, len); + } + else { + *pBackClipRects = NULL; + } + + UnlockDisplay(dpy); + SyncHandle(); + TRACE("GetDrawableInfo... return True"); + return True; +} + +Bool +XF86DRIGetDeviceInfo(Display * dpy, int screen, drm_handle_t * hFrameBuffer, + int *fbOrigin, int *fbSize, int *fbStride, + int *devPrivateSize, void **pDevPrivate) +{ + XExtDisplayInfo *info = find_display(dpy); + xXF86DRIGetDeviceInfoReply rep; + xXF86DRIGetDeviceInfoReq *req; + + TRACE("GetDeviceInfo..."); + XF86DRICheckExtension(dpy, info, False); + + LockDisplay(dpy); + GetReq(XF86DRIGetDeviceInfo, req); + req->reqType = info->codes->major_opcode; + req->driReqType = X_XF86DRIGetDeviceInfo; + req->screen = screen; + if (!_XReply(dpy, (xReply *) & rep, 0, xFalse)) { + UnlockDisplay(dpy); + SyncHandle(); + TRACE("GetDeviceInfo... return False"); + return False; + } + + *hFrameBuffer = rep.hFrameBufferLow; + if (sizeof(drm_handle_t) == 8) { + int shift = 32; /* var to prevent warning on next line */ + *hFrameBuffer |= ((drm_handle_t) rep.hFrameBufferHigh) << shift; + } + + *fbOrigin = rep.framebufferOrigin; + *fbSize = rep.framebufferSize; + *fbStride = rep.framebufferStride; + *devPrivateSize = rep.devPrivateSize; + + if (rep.length) { + if (!(*pDevPrivate = (void *) Xcalloc(rep.devPrivateSize, 1))) { + _XEatData(dpy, ((rep.devPrivateSize + 3) & ~3)); + UnlockDisplay(dpy); + SyncHandle(); + TRACE("GetDeviceInfo... return False"); + return False; + } + _XRead(dpy, (char *) *pDevPrivate, rep.devPrivateSize); + } + else { + *pDevPrivate = NULL; + } + + UnlockDisplay(dpy); + SyncHandle(); + TRACE("GetDeviceInfo... return True"); + return True; +} + +Bool +XF86DRIOpenFullScreen(Display * dpy, int screen, Drawable drawable) +{ + /* This function and the underlying X protocol are deprecated. + */ + (void) dpy; + (void) screen; + (void) drawable; + return False; +} + +Bool +XF86DRICloseFullScreen(Display * dpy, int screen, Drawable drawable) +{ + /* This function and the underlying X protocol are deprecated. + */ + (void) dpy; + (void) screen; + (void) drawable; + return True; +} + +#endif /* GLX_DIRECT_RENDERING */ |