src/gallium/targets/xorg-vmwgfx/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
   6  * files (the "Software"), to deal in the Software without
   7  * restriction, including without limitation the rights to use, copy,
   8  * modify, merge, publish, distribute, sublicense, and/or sell copies
   9  * of the Software, and to permit persons to whom the Software is
  10  * furnished to do so, subject to the following conditions:
  11  *
  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
  19  * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
  20  * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
  21  * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
  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 #include <pipe/p_context.h>
  36
  37 #include "cursorstr.h"
  38
  39 void vmw_winsys_screen_set_throttling(struct pipe_screen *screen,
  40                                       uint32_t throttle_us);
  41
  42
  43 /* modified version of crtc functions */
  44 xf86CrtcFuncsRec vmw_screen_crtc_funcs;
  45
  46 static void
  47 vmw_screen_cursor_load_argb(xf86CrtcPtr crtc, CARD32 *image)
  48 {
  49     struct vmw_customizer *vmw =
  50         vmw_customizer(xorg_customizer(crtc->scrn));
  51     xf86CrtcConfigPtr config = XF86_CRTC_CONFIG_PTR(crtc->scrn);
  52     xf86CrtcFuncsPtr funcs = vmw->cursor_priv;
  53     CursorPtr c = config->cursor;
  54
  55     /* Run the ioctl before uploading the image */
  56     vmw_ioctl_cursor_bypass(vmw, c->bits->xhot, c->bits->yhot);
  57
  58     funcs->load_cursor_argb(crtc, image);
  59 }
  60
  61 static void
  62 vmw_screen_cursor_init(struct vmw_customizer *vmw)
  63 {
  64     ScrnInfoPtr pScrn = vmw->pScrn;
  65     xf86CrtcConfigPtr config = XF86_CRTC_CONFIG_PTR(pScrn);
  66     int i;
  67
  68     /* XXX assume that all crtc's have the same function struct */
  69
  70     /* Save old struct need to call the old functions as well */
  71     vmw->cursor_priv = (void*)(config->crtc[0]->funcs);
  72     memcpy(&vmw_screen_crtc_funcs, vmw->cursor_priv, sizeof(xf86CrtcFuncsRec));
  73     vmw_screen_crtc_funcs.load_cursor_argb = vmw_screen_cursor_load_argb;
  74
  75     for (i = 0; i < config->num_crtc; i++)
  76         config->crtc[i]->funcs = &vmw_screen_crtc_funcs;
  77 }
  78
  79 static void
  80 vmw_screen_cursor_close(struct vmw_customizer *vmw)
  81 {
  82     xf86CrtcConfigPtr config = XF86_CRTC_CONFIG_PTR(vmw->pScrn);
  83     int i;
  84
  85     vmw_ioctl_cursor_bypass(vmw, 0, 0);
  86
  87     for (i = 0; i < config->num_crtc; i++)
  88         config->crtc[i]->funcs = vmw->cursor_priv;
  89 }
  90
  91 static void
  92 vmw_context_throttle(CustomizerPtr cust,
  93                      struct pipe_context *pipe,
  94                      enum xorg_throttling_reason reason)
  95 {
  96     switch (reason) {
  97     case THROTTLE_RENDER:
  98         vmw_winsys_screen_set_throttling(pipe->screen, 20000);
  99         break;
 100     default:
 101       vmw_winsys_screen_set_throttling(pipe->screen, 0);
 102     }
 103 }
 104
 105 static void
 106 vmw_context_no_throttle(CustomizerPtr cust,
 107                      struct pipe_context *pipe,
 108                      enum xorg_throttling_reason reason)
 109 {
 110     vmw_winsys_screen_set_throttling(pipe->screen, 0);
 111 }
 112
 113 static Bool
 114 vmw_pre_init(CustomizerPtr cust, int fd)
 115 {
 116     struct vmw_customizer *vmw = vmw_customizer(cust);
 117
 118     vmw->fd = fd;
 119
 120     return TRUE;
 121 }
 122
 123 static Bool
 124 vmw_screen_init(CustomizerPtr cust)
 125 {
 126     struct vmw_customizer *vmw = vmw_customizer(cust);
 127     drmVersionPtr ver;
 128
 129     ver = drmGetVersion(vmw->fd);
 130     if (ver == NULL ||
 131         (ver->version_major == 1 && ver->version_minor < 1)) {
 132         cust->swap_throttling = TRUE;
 133         cust->dirty_throttling = TRUE;
 134         cust->winsys_context_throttle = vmw_context_no_throttle;
 135     } else {
 136         cust->swap_throttling = TRUE;
 137         cust->dirty_throttling = FALSE;
 138         cust->winsys_context_throttle = vmw_context_throttle;
 139         debug_printf("%s: Enabling kernel throttling.\n", __func__);
 140     }
 141
 142     if (ver)
 143         drmFreeVersion(ver);
 144
 145     vmw_screen_cursor_init(vmw);
 146
 147     vmw_ctrl_ext_init(vmw);
 148
 149     /* if gallium is used then we don't need to do anything more. */
 150     if (xorg_has_gallium(vmw->pScrn))
 151         return TRUE;
 152
 153     vmw_video_init(vmw);
 154
 155     return TRUE;
 156 }
 157
 158 static Bool
 159 vmw_screen_close(CustomizerPtr cust)
 160 {
 161     struct vmw_customizer *vmw = vmw_customizer(cust);
 162
 163     if (!vmw)
 164         return TRUE;
 165
 166     vmw_screen_cursor_close(vmw);
 167
 168     vmw_video_close(vmw);
 169
 170     return TRUE;
 171 }
 172
 173 static Bool
 174 vmw_screen_enter_vt(CustomizerPtr cust)
 175 {
 176     debug_printf("%s: enter\n", __func__);
 177
 178     return TRUE;
 179 }
 180
 181 static Bool
 182 vmw_screen_leave_vt(CustomizerPtr cust)
 183 {
 184     struct vmw_customizer *vmw = vmw_customizer(cust);
 185
 186     debug_printf("%s: enter\n", __func__);
 187
 188     vmw_video_stop_all(vmw);
 189
 190     return TRUE;
 191 }
 192
 193 /*
 194  * Functions for setting up hooks into the xorg state tracker
 195  */
 196
 197 static Bool (*vmw_screen_pre_init_saved)(ScrnInfoPtr pScrn, int flags) = NULL;
 198
 199 static Bool
 200 vmw_screen_pre_init(ScrnInfoPtr pScrn, int flags)
 201 {
 202     struct vmw_customizer *vmw;
 203     CustomizerPtr cust;
 204
 205     vmw = xnfcalloc(1, sizeof(*vmw));
 206     if (!vmw)
 207         return FALSE;
 208
 209     cust = &vmw->base;
 210
 211     cust->winsys_pre_init = vmw_pre_init;
 212     cust->winsys_screen_init = vmw_screen_init;
 213     cust->winsys_screen_close = vmw_screen_close;
 214     cust->winsys_enter_vt = vmw_screen_enter_vt;
 215     cust->winsys_leave_vt = vmw_screen_leave_vt;
 216     cust->no_3d = TRUE;
 217     vmw->pScrn = pScrn;
 218
 219     pScrn->driverPrivate = cust;
 220
 221     pScrn->PreInit = vmw_screen_pre_init_saved;
 222     if (!pScrn->PreInit(pScrn, flags))
 223         return FALSE;
 224
 225     return TRUE;
 226 }
 227
 228 void
 229 vmw_screen_set_functions(ScrnInfoPtr pScrn)
 230 {
 231     assert(!vmw_screen_pre_init_saved);
 232
 233     vmw_screen_pre_init_saved = pScrn->PreInit;
 234     pScrn->PreInit = vmw_screen_pre_init;
 235 }