src/gallium/winsys/drm/vmware/xorg/vmw_screen.c

   1 /**********************************************************
   2  * Copyright 2009 VMware, Inc.  All rights reserved.
   3  *
   4  * Permission is hereby granted, free of charge, to any person
   5  * obtaining a copy of this software and associated documentation
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   9  * of the Software, and to permit persons to whom the Software is
  10  * furnished to do so, subject to the following conditions:
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  12  * The above copyright notice and this permission notice shall be
  13  * included in all copies or substantial portions of the Software.
  14  *
  15  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  16  * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  17  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  18  * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
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  22  * SOFTWARE.
  23  *
  24  **********************************************************/
  25
  26 /**
  27  * @file
  28  * Contains the init code for the VMware Xorg driver.
  29  *
  30  * @author Jakob Bornecrantz <jakob@vmware.com>
  31  */
  32
  33 #include "vmw_hook.h"
  34 #include "vmw_driver.h"
  35
  36 /* modified version of crtc functions */
  37 xf86CrtcFuncsRec vmw_screen_crtc_funcs;
  38
  39 static void
  40 vmw_screen_cursor_load_argb(xf86CrtcPtr crtc, CARD32 *image)
  41 {
  42     struct vmw_driver *vmw = modesettingPTR(crtc->scrn)->winsys_priv;
  43     xf86CrtcConfigPtr config = XF86_CRTC_CONFIG_PTR(crtc->scrn);
  44     xf86CrtcFuncsPtr funcs = vmw->cursor_priv;
  45     CursorPtr c = config->cursor;
  46
  47     /* Run the ioctl before uploading the image */
  48     vmw_ioctl_cursor_bypass(vmw, c->bits->xhot, c->bits->yhot);
  49
  50     funcs->load_cursor_argb(crtc, image);
  51 }
  52
  53 static void
  54 vmw_screen_cursor_init(ScrnInfoPtr pScrn, struct vmw_driver *vmw)
  55 {
  56     xf86CrtcConfigPtr config = XF86_CRTC_CONFIG_PTR(pScrn);
  57     int i;
  58
  59     /* XXX assume that all crtc's have the same function struct */
  60
  61     /* Save old struct need to call the old functions as well */
  62     vmw->cursor_priv = (void*)(config->crtc[0]->funcs);
  63     memcpy(&vmw_screen_crtc_funcs, vmw->cursor_priv, sizeof(xf86CrtcFuncsRec));
  64     vmw_screen_crtc_funcs.load_cursor_argb = vmw_screen_cursor_load_argb;
  65
  66     for (i = 0; i < config->num_crtc; i++)
  67         config->crtc[i]->funcs = &vmw_screen_crtc_funcs;
  68 }
  69
  70 static void
  71 vmw_screen_cursor_close(ScrnInfoPtr pScrn, struct vmw_driver *vmw)
  72 {
  73     xf86CrtcConfigPtr config = XF86_CRTC_CONFIG_PTR(pScrn);
  74     int i;
  75
  76     vmw_ioctl_cursor_bypass(vmw, 0, 0);
  77
  78     for (i = 0; i < config->num_crtc; i++)
  79         config->crtc[i]->funcs = vmw->cursor_priv;
  80 }
  81
  82 static Bool
  83 vmw_screen_init(ScrnInfoPtr pScrn)
  84 {
  85     modesettingPtr ms = modesettingPTR(pScrn);
  86     struct vmw_driver *vmw;
  87
  88     vmw = xnfcalloc(sizeof(*vmw), 1);
  89     if (!vmw)
  90         return FALSE;
  91
  92     vmw->fd = ms->fd;
  93     ms->winsys_priv = vmw;
  94
  95     vmw_screen_cursor_init(pScrn, vmw);
  96
  97     /* if gallium is used then we don't need to do anything more. */
  98     if (ms->screen)
  99         return TRUE;
 100
 101     vmw_video_init(pScrn, vmw);
 102
 103     return TRUE;
 104 }
 105
 106 static Bool
 107 vmw_screen_close(ScrnInfoPtr pScrn)
 108 {
 109     modesettingPtr ms = modesettingPTR(pScrn);
 110     struct vmw_driver *vmw = vmw_driver(pScrn);
 111
 112     if (!vmw)
 113         return TRUE;
 114
 115     vmw_screen_cursor_close(pScrn, vmw);
 116
 117     vmw_video_close(pScrn, vmw);
 118
 119     ms->winsys_priv = NULL;
 120     xfree(vmw);
 121
 122     return TRUE;
 123 }
 124
 125 /*
 126  * Functions for setting up hooks into the xorg state tracker
 127  */
 128
 129 static Bool (*vmw_screen_pre_init_saved)(ScrnInfoPtr pScrn, int flags) = NULL;
 130
 131 static Bool
 132 vmw_screen_pre_init(ScrnInfoPtr pScrn, int flags)
 133 {
 134     modesettingPtr ms;
 135
 136     pScrn->PreInit = vmw_screen_pre_init_saved;
 137     if (!pScrn->PreInit(pScrn, flags))
 138         return FALSE;
 139
 140     ms = modesettingPTR(pScrn);
 141     ms->winsys_screen_init = vmw_screen_init;
 142     ms->winsys_screen_close = vmw_screen_close;
 143
 144     return TRUE;
 145 }
 146
 147 void
 148 vmw_screen_set_functions(ScrnInfoPtr pScrn)
 149 {
 150     assert(!vmw_screen_pre_init_saved);
 151
 152     vmw_screen_pre_init_saved = pScrn->PreInit;
 153     pScrn->PreInit = vmw_screen_pre_init;
 154 }