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  1. /* $XFree86: xc/lib/GL/dri/XF86dri.c,v 1.12 2001/08/27 17:40:57 dawes Exp $ */
  2. /**************************************************************************
  3.  
  4. Copyright 1998-1999 Precision Insight, Inc., Cedar Park, Texas.
  5. Copyright 2000 VA Linux Systems, Inc.
  6. Copyright (c) 2002, 2008 Apple Computer, Inc.
  7. All Rights Reserved.
  8.  
  9. Permission is hereby granted, free of charge, to any person obtaining a
  10. copy of this software and associated documentation files (the
  11. "Software"), to deal in the Software without restriction, including
  12. without limitation the rights to use, copy, modify, merge, publish,
  13. distribute, sub license, and/or sell copies of the Software, and to
  14. permit persons to whom the Software is furnished to do so, subject to
  15. the following conditions:
  16.  
  17. The above copyright notice and this permission notice (including the
  18. next paragraph) shall be included in all copies or substantial portions
  19. of the Software.
  20.  
  21. THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
  22. OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  23. MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
  24. IN NO EVENT SHALL PRECISION INSIGHT AND/OR ITS SUPPLIERS BE LIABLE FOR
  25. ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
  26. TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
  27. SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  28.  
  29. **************************************************************************/
  30.  
  31. /*
  32.  * Authors:
  33.  *   Kevin E. Martin <martin@valinux.com>
  34.  *   Jens Owen <jens@valinux.com>
  35.  *   Rickard E. (Rik) Faith <faith@valinux.com>
  36.  *
  37.  */
  38.  
  39. /* THIS IS NOT AN X CONSORTIUM STANDARD */
  40.  
  41. #include <X11/Xlibint.h>
  42. #include "appledristr.h"
  43. #include <X11/extensions/Xext.h>
  44. #include <X11/extensions/extutil.h>
  45. #include <stdio.h>
  46.  
  47. static XExtensionInfo _appledri_info_data;
  48. static XExtensionInfo *appledri_info = &_appledri_info_data;
  49. static char *appledri_extension_name = APPLEDRINAME;
  50.  
  51. #define AppleDRICheckExtension(dpy,i,val) \
  52.   XextCheckExtension (dpy, i, appledri_extension_name, val)
  53.  
  54. /*****************************************************************************
  55.  *                                                                           *
  56.  *                         private utility routines                          *
  57.  *                                                                           *
  58.  *****************************************************************************/
  59.  
  60. static int close_display(Display * dpy, XExtCodes * extCodes);
  61. static Bool wire_to_event(Display * dpy, XEvent * re, xEvent * event);
  62.  
  63. static /* const */ XExtensionHooks appledri_extension_hooks = {
  64.    NULL,                        /* create_gc */
  65.    NULL,                        /* copy_gc */
  66.    NULL,                        /* flush_gc */
  67.    NULL,                        /* free_gc */
  68.    NULL,                        /* create_font */
  69.    NULL,                        /* free_font */
  70.    close_display,               /* close_display */
  71.    wire_to_event,               /* wire_to_event */
  72.    NULL,                        /* event_to_wire */
  73.    NULL,                        /* error */
  74.    NULL,                        /* error_string */
  75. };
  76.  
  77. static
  78. XEXT_GENERATE_FIND_DISPLAY(find_display, appledri_info,
  79.                            appledri_extension_name,
  80.                            &appledri_extension_hooks,
  81.                            AppleDRINumberEvents, NULL)
  82.  
  83.      static XEXT_GENERATE_CLOSE_DISPLAY(close_display, appledri_info)
  84.  
  85.      static void (*surface_notify_handler) ();
  86.  
  87.      void *XAppleDRISetSurfaceNotifyHandler(void (*fun) ())
  88. {
  89.    void *old = surface_notify_handler;
  90.    surface_notify_handler = fun;
  91.    return old;
  92. }
  93.  
  94. static Bool
  95. wire_to_event(Display *dpy, XEvent *re, xEvent *event)
  96. {
  97.    XExtDisplayInfo *info = find_display(dpy);
  98.    xAppleDRINotifyEvent *sevent;
  99.  
  100.    AppleDRICheckExtension(dpy, info, False);
  101.  
  102.    switch ((event->u.u.type & 0x7f) - info->codes->first_event) {
  103.    case AppleDRISurfaceNotify:
  104.       sevent = (xAppleDRINotifyEvent *) event;
  105.       if (surface_notify_handler != NULL) {
  106.          (*surface_notify_handler) (dpy, (unsigned int) sevent->arg,
  107.                                     (int) sevent->kind);
  108.       }
  109.       return False;
  110.    }
  111.    return False;
  112. }
  113.  
  114. /*****************************************************************************
  115.  *                                                                           *
  116.  *                  public Apple-DRI Extension routines                      *
  117.  *                                                                           *
  118.  *****************************************************************************/
  119.  
  120. #if 0
  121. #include <stdio.h>
  122. #define TRACE(msg)  fprintf(stderr, "AppleDRI%s\n", msg);
  123. #else
  124. #define TRACE(msg)
  125. #endif
  126.  
  127.  
  128. Bool
  129. XAppleDRIQueryExtension(dpy, event_basep, error_basep)
  130.      Display *dpy;
  131.      int *event_basep, *error_basep;
  132. {
  133.    XExtDisplayInfo *info = find_display(dpy);
  134.  
  135.    TRACE("QueryExtension...");
  136.    if (XextHasExtension(info)) {
  137.       *event_basep = info->codes->first_event;
  138.       *error_basep = info->codes->first_error;
  139.       TRACE("QueryExtension... return True");
  140.       return True;
  141.    }
  142.    else {
  143.       TRACE("QueryExtension... return False");
  144.       return False;
  145.    }
  146. }
  147.  
  148. Bool
  149. XAppleDRIQueryVersion(dpy, majorVersion, minorVersion, patchVersion)
  150.      Display *dpy;
  151.      int *majorVersion;
  152.      int *minorVersion;
  153.      int *patchVersion;
  154. {
  155.    XExtDisplayInfo *info = find_display(dpy);
  156.    xAppleDRIQueryVersionReply rep;
  157.    xAppleDRIQueryVersionReq *req;
  158.  
  159.    TRACE("QueryVersion...");
  160.    AppleDRICheckExtension(dpy, info, False);
  161.  
  162.    LockDisplay(dpy);
  163.    GetReq(AppleDRIQueryVersion, req);
  164.    req->reqType = info->codes->major_opcode;
  165.    req->driReqType = X_AppleDRIQueryVersion;
  166.    if (!_XReply(dpy, (xReply *) & rep, 0, xFalse)) {
  167.       UnlockDisplay(dpy);
  168.       SyncHandle();
  169.       TRACE("QueryVersion... return False");
  170.       return False;
  171.    }
  172.    *majorVersion = rep.majorVersion;
  173.    *minorVersion = rep.minorVersion;
  174.    *patchVersion = rep.patchVersion;
  175.    UnlockDisplay(dpy);
  176.    SyncHandle();
  177.    TRACE("QueryVersion... return True");
  178.    return True;
  179. }
  180.  
  181. Bool
  182. XAppleDRIQueryDirectRenderingCapable(dpy, screen, isCapable)
  183.      Display *dpy;
  184.      int screen;
  185.      Bool *isCapable;
  186. {
  187.    XExtDisplayInfo *info = find_display(dpy);
  188.    xAppleDRIQueryDirectRenderingCapableReply rep;
  189.    xAppleDRIQueryDirectRenderingCapableReq *req;
  190.  
  191.    TRACE("QueryDirectRenderingCapable...");
  192.    AppleDRICheckExtension(dpy, info, False);
  193.  
  194.    LockDisplay(dpy);
  195.    GetReq(AppleDRIQueryDirectRenderingCapable, req);
  196.    req->reqType = info->codes->major_opcode;
  197.    req->driReqType = X_AppleDRIQueryDirectRenderingCapable;
  198.    req->screen = screen;
  199.    if (!_XReply(dpy, (xReply *) & rep, 0, xFalse)) {
  200.       UnlockDisplay(dpy);
  201.       SyncHandle();
  202.       TRACE("QueryDirectRenderingCapable... return False");
  203.       return False;
  204.    }
  205.    *isCapable = rep.isCapable;
  206.    UnlockDisplay(dpy);
  207.    SyncHandle();
  208.    TRACE("QueryDirectRenderingCapable... return True");
  209.    return True;
  210. }
  211.  
  212. Bool
  213. XAppleDRIAuthConnection(dpy, screen, magic)
  214.      Display *dpy;
  215.      int screen;
  216.      unsigned int magic;
  217. {
  218.    XExtDisplayInfo *info = find_display(dpy);
  219.    xAppleDRIAuthConnectionReq *req;
  220.    xAppleDRIAuthConnectionReply rep;
  221.  
  222.    TRACE("AuthConnection...");
  223.    AppleDRICheckExtension(dpy, info, False);
  224.  
  225.    LockDisplay(dpy);
  226.    GetReq(AppleDRIAuthConnection, req);
  227.    req->reqType = info->codes->major_opcode;
  228.    req->driReqType = X_AppleDRIAuthConnection;
  229.    req->screen = screen;
  230.    req->magic = magic;
  231.    rep.authenticated = 0;
  232.    if (!_XReply(dpy, (xReply *) & rep, 0, xFalse) || !rep.authenticated) {
  233.       UnlockDisplay(dpy);
  234.       SyncHandle();
  235.       TRACE("AuthConnection... return False");
  236.       return False;
  237.    }
  238.    UnlockDisplay(dpy);
  239.    SyncHandle();
  240.    TRACE("AuthConnection... return True");
  241.    return True;
  242. }
  243.  
  244. Bool
  245. XAppleDRICreateSurface(dpy, screen, drawable, client_id, key, uid)
  246.      Display *dpy;
  247.      int screen;
  248.      Drawable drawable;
  249.      unsigned int client_id;
  250.      unsigned int *key;
  251.      unsigned int *uid;
  252. {
  253.    XExtDisplayInfo *info = find_display(dpy);
  254.    xAppleDRICreateSurfaceReply rep;
  255.    xAppleDRICreateSurfaceReq *req;
  256.  
  257.    TRACE("CreateSurface...");
  258.    AppleDRICheckExtension(dpy, info, False);
  259.  
  260.    LockDisplay(dpy);
  261.    GetReq(AppleDRICreateSurface, req);
  262.    req->reqType = info->codes->major_opcode;
  263.    req->driReqType = X_AppleDRICreateSurface;
  264.    req->screen = screen;
  265.    req->drawable = drawable;
  266.    req->client_id = client_id;
  267.    rep.key_0 = rep.key_1 = rep.uid = 0;
  268.    if (!_XReply(dpy, (xReply *) & rep, 0, xFalse) || !rep.key_0) {
  269.       UnlockDisplay(dpy);
  270.       SyncHandle();
  271.       TRACE("CreateSurface... return False");
  272.       return False;
  273.    }
  274.    key[0] = rep.key_0;
  275.    key[1] = rep.key_1;
  276.    *uid = rep.uid;
  277.    UnlockDisplay(dpy);
  278.    SyncHandle();
  279.    TRACE("CreateSurface... return True");
  280.    return True;
  281. }
  282.  
  283. Bool
  284. XAppleDRIDestroySurface(dpy, screen, drawable)
  285.      Display *dpy;
  286.      int screen;
  287.      Drawable drawable;
  288. {
  289.    XExtDisplayInfo *info = find_display(dpy);
  290.    xAppleDRIDestroySurfaceReq *req;
  291.  
  292.    TRACE("DestroySurface...");
  293.    AppleDRICheckExtension(dpy, info, False);
  294.  
  295.    LockDisplay(dpy);
  296.    GetReq(AppleDRIDestroySurface, req);
  297.    req->reqType = info->codes->major_opcode;
  298.    req->driReqType = X_AppleDRIDestroySurface;
  299.    req->screen = screen;
  300.    req->drawable = drawable;
  301.    UnlockDisplay(dpy);
  302.    SyncHandle();
  303.    TRACE("DestroySurface... return True");
  304.    return True;
  305. }
  306.  
  307. Bool
  308. XAppleDRICreateSharedBuffer(Display * dpy, int screen, Drawable drawable,
  309.                             Bool doubleSwap, char *path, size_t pathlen,
  310.                             int *width, int *height)
  311. {
  312.    XExtDisplayInfo *info = find_display(dpy);
  313.    xAppleDRICreateSharedBufferReq *req;
  314.    xAppleDRICreateSharedBufferReply rep;
  315.  
  316.    AppleDRICheckExtension(dpy, info, False);
  317.  
  318.    LockDisplay(dpy);
  319.    GetReq(AppleDRICreateSharedBuffer, req);
  320.    req->reqType = info->codes->major_opcode;
  321.    req->driReqType = X_AppleDRICreateSharedBuffer;
  322.    req->screen = screen;
  323.    req->drawable = drawable;
  324.    req->doubleSwap = doubleSwap;
  325.  
  326.  
  327.    if (!_XReply(dpy, (xReply *) & rep, 0, xFalse)) {
  328.       puts("REPLY ERROR");
  329.  
  330.       UnlockDisplay(dpy);
  331.       SyncHandle();
  332.       return False;
  333.    }
  334.  
  335.    /* printf("rep.stringLength %d\n", (int) rep.stringLength); */
  336.  
  337.    if (rep.stringLength > 0 && rep.stringLength <= pathlen) {
  338.       _XReadPad(dpy, path, rep.stringLength);
  339.  
  340.       /* printf("path: %s\n", path); */
  341.  
  342.       *width = rep.width;
  343.       *height = rep.height;
  344.  
  345.       UnlockDisplay(dpy);
  346.       SyncHandle();
  347.       return True;
  348.    }
  349.  
  350.    UnlockDisplay(dpy);
  351.    SyncHandle();
  352.  
  353.    return False;
  354. }
  355.  
  356. Bool
  357. XAppleDRISwapBuffers(Display * dpy, int screen, Drawable drawable)
  358. {
  359.    XExtDisplayInfo *info = find_display(dpy);
  360.    xAppleDRISwapBuffersReq *req;
  361.  
  362.    AppleDRICheckExtension(dpy, info, False);
  363.  
  364.    LockDisplay(dpy);
  365.    GetReq(AppleDRISwapBuffers, req);
  366.    req->reqType = info->codes->major_opcode;
  367.    req->driReqType = X_AppleDRISwapBuffers;
  368.    req->screen = screen;
  369.    req->drawable = drawable;
  370.    UnlockDisplay(dpy);
  371.    SyncHandle();
  372.  
  373.    return True;
  374. }
  375.  
  376. Bool
  377. XAppleDRICreatePixmap(Display * dpy, int screen, Drawable drawable,
  378.                       int *width, int *height, int *pitch, int *bpp,
  379.                       size_t * size, char *bufname, size_t bufnamesize)
  380. {
  381.    XExtDisplayInfo *info = find_display(dpy);
  382.    xAppleDRICreatePixmapReq *req;
  383.    xAppleDRICreatePixmapReply rep;
  384.  
  385.    AppleDRICheckExtension(dpy, info, False);
  386.  
  387.    LockDisplay(dpy);
  388.    GetReq(AppleDRICreatePixmap, req);
  389.    req->reqType = info->codes->major_opcode;
  390.    req->driReqType = X_AppleDRICreatePixmap;
  391.    req->screen = screen;
  392.    req->drawable = drawable;
  393.  
  394.    if (!_XReply(dpy, (xReply *) & rep, 0, xFalse)) {
  395.       UnlockDisplay(dpy);
  396.       SyncHandle();
  397.       return False;
  398.    }
  399.  
  400.    /*
  401.       printf("rep.stringLength %d\n", (int) rep.stringLength);
  402.     */
  403.  
  404.    if (rep.stringLength > 0 && rep.stringLength <= bufnamesize) {
  405.       _XReadPad(dpy, bufname, rep.stringLength);
  406.  
  407.       /* printf("path: %s\n", bufname); */
  408.  
  409.       *width = rep.width;
  410.       *height = rep.height;
  411.       *pitch = rep.pitch;
  412.       *bpp = rep.bpp;
  413.       *size = rep.size;
  414.  
  415.       UnlockDisplay(dpy);
  416.       SyncHandle();
  417.       return True;
  418.    }
  419.    else if (rep.stringLength > 0) {
  420.       _XEatData(dpy, rep.stringLength);
  421.    }
  422.  
  423.    UnlockDisplay(dpy);
  424.    SyncHandle();
  425.  
  426.    return True;
  427. }
  428.  
  429. /*
  430.  * Call it a drawable, because we really don't know what it is
  431.  * until it reaches the server, and we should keep that in mind.
  432.  */
  433. Bool
  434. XAppleDRIDestroyPixmap(Display * dpy, Pixmap drawable)
  435. {
  436.    XExtDisplayInfo *info = find_display(dpy);
  437.    xAppleDRIDestroyPixmapReq *req;
  438.  
  439.    AppleDRICheckExtension(dpy, info, False);
  440.  
  441.    LockDisplay(dpy);
  442.    GetReq(AppleDRIDestroyPixmap, req);
  443.    req->reqType = info->codes->major_opcode;
  444.    req->driReqType = X_AppleDRIDestroyPixmap;
  445.    req->drawable = drawable;
  446.    UnlockDisplay(dpy);
  447.    SyncHandle();
  448.  
  449.    return True;
  450. }
  451.