src/gallium/winsys/drm/radeon/python/radeon_hardpipe_winsys.c

   1  /**************************************************************************
   2  *
   3  * Copyright 2009 VMware, Inc.
   4  * All Rights Reserved.
   5  *
   6  * Permission is hereby granted, free of charge, to any person obtaining a
   7  * copy of this software and associated documentation files (the
   8  * "Software"), to deal in the Software without restriction, including
   9  * without limitation the rights to use, copy, modify, merge, publish,
  10  * distribute, sub license, and/or sell copies of the Software, and to
  11  * permit persons to whom the Software is furnished to do so, subject to
  12  * the following conditions:
  13  *
  14  * The above copyright notice and this permission notice (including the
  15  * next paragraph) shall be included in all copies or substantial portions
  16  * of the Software.
  17  *
  18  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
  19  * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  20  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
  21  * IN NO EVENT SHALL VMWARE AND/OR ITS SUPPLIERS BE LIABLE FOR
  22  * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
  23  * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
  24  * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  25  *
  26  **************************************************************************/
  27
  28
  29 #include <stdio.h>
  30 #include <string.h>
  31 #include <stdlib.h>
  32
  33 #include <X11/X.h>
  34 #include <X11/Xlib.h>
  35 #include <drm/drm.h>
  36
  37 #include "pipe/p_screen.h"
  38 #include "pipe/p_context.h"
  39
  40 #include "st_winsys.h"
  41
  42 #include "radeon_winsys.h"
  43
  44 #include "xf86dri.h"
  45
  46
  47 /* XXX: Force init_gallium symbol to be linked */
  48 extern void init_gallium(void);
  49 void (*force_init_gallium_linkage)(void) = &init_gallium;
  50
  51
  52 static struct pipe_screen *
  53 radeon_hardpipe_screen_create(void)
  54 {
  55    Display *dpy;
  56    Window rootWin;
  57    XWindowAttributes winAttr;
  58    int isCapable;
  59    int screen;
  60    char *driverName;
  61    char *curBusID;
  62    unsigned magic;
  63    int ddxDriverMajor;
  64    int ddxDriverMinor;
  65    int ddxDriverPatch;
  66    drm_handle_t sAreaOffset;
  67    int ret;
  68    int drmFD;
  69    drm_context_t hHWContext;
  70    XID id;
  71
  72    dpy = XOpenDisplay(":0");
  73    if (!dpy) {
  74       fprintf(stderr, "Open Display Failed\n");
  75       return NULL;
  76    }
  77
  78    screen = DefaultScreen(dpy);
  79    rootWin = RootWindow(dpy, screen);
  80    XGetWindowAttributes(dpy, rootWin, &winAttr);
  81
  82    ret = uniDRIQueryDirectRenderingCapable(dpy, screen, &isCapable);
  83    if (!ret || !isCapable) {
  84       fprintf(stderr, "No DRI on this display:sceen\n");
  85       goto error;
  86    }
  87
  88    if (!uniDRIOpenConnection(dpy, screen, &sAreaOffset,
  89                              &curBusID)) {
  90       fprintf(stderr, "Could not open DRI connection.\n");
  91       goto error;
  92    }
  93
  94    if (!uniDRIGetClientDriverName(dpy, screen, &ddxDriverMajor,
  95                                   &ddxDriverMinor, &ddxDriverPatch,
  96                                   &driverName)) {
  97       fprintf(stderr, "Could not get DRI driver name.\n");
  98       goto error;
  99    }
 100
 101    if ((drmFD = drmOpen(NULL, curBusID)) < 0) {
 102       perror("DRM Device could not be opened");
 103       goto error;
 104    }
 105
 106    drmGetMagic(drmFD, &magic);
 107    if (!uniDRIAuthConnection(dpy, screen, magic)) {
 108       fprintf(stderr, "Could not get X server to authenticate us.\n");
 109       goto error;
 110    }
 111
 112    if (!uniDRICreateContext(dpy, screen, winAttr.visual,
 113                             &id, &hHWContext)) {
 114       fprintf(stderr, "Could not create DRI context.\n");
 115       goto error;
 116    }
 117
 118    /* FIXME: create a radeon pipe_screen from drmFD and hHWContext */
 119
 120    return NULL;
 121
 122 error:
 123    return NULL;
 124 }
 125
 126
 127
 128
 129 const struct st_winsys st_hardpipe_winsys = {
 130    &radeon_hardpipe_screen_create,
 131 };
 132