VirtualBox

source: vbox/trunk/src/VBox/Additions/x11/vboxvideo/setmode.c@ 67954

Last change on this file since 67954 was 62530, checked in by vboxsync, 8 years ago

(C) 2016

  • Property svn:eol-style set to native
  • Property svn:keywords set to Author Date Id Revision
File size: 6.1 KB
Line 
1/* $Id: setmode.c 62530 2016-07-22 19:25:14Z vboxsync $ */
2/** @file
3 * Linux Additions X11 graphics driver, mode setting
4 */
5
6/*
7 * Copyright (C) 2006-2016 Oracle Corporation
8 *
9 * This file is part of VirtualBox Open Source Edition (OSE), as
10 * available from http://www.virtualbox.org. This file is free software;
11 * you can redistribute it and/or modify it under the terms of the GNU
12 * General Public License (GPL) as published by the Free Software
13 * Foundation, in version 2 as it comes in the "COPYING" file of the
14 * VirtualBox OSE distribution. VirtualBox OSE is distributed in the
15 * hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
16 * --------------------------------------------------------------------
17 *
18 * This code is based on:
19 *
20 * X11 VESA driver
21 *
22 * Copyright (c) 2000 by Conectiva S.A. (http://www.conectiva.com)
23 *
24 * Permission is hereby granted, free of charge, to any person obtaining a
25 * copy of this software and associated documentation files (the "Software"),
26 * to deal in the Software without restriction, including without limitation
27 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
28 * and/or sell copies of the Software, and to permit persons to whom the
29 * Software is furnished to do so, subject to the following conditions:
30 *
31 * The above copyright notice and this permission notice shall be included in
32 * all copies or substantial portions of the Software.
33 *
34 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
35 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
36 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
37 * CONECTIVA LINUX BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
38 * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF
39 * OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
40 * SOFTWARE.
41 *
42 * Except as contained in this notice, the name of Conectiva Linux shall
43 * not be used in advertising or otherwise to promote the sale, use or other
44 * dealings in this Software without prior written authorization from
45 * Conectiva Linux.
46 *
47 * Authors: Paulo César Pereira de Andrade <pcpa@conectiva.com.br>
48 */
49
50#ifdef XORG_7X
51/* We include <unistd.h> for Solaris below, and the ANSI C emulation layer
52 * interferes with that. */
53# define _XF86_ANSIC_H
54# define XF86_LIBC_H
55# include <string.h>
56#endif
57#include "vboxvideo.h"
58#include "version-generated.h"
59#include "product-generated.h"
60#include "xf86.h"
61
62/* VGA hardware functions for setting and restoring text mode */
63#include "vgaHW.h"
64
65#ifdef RT_OS_SOLARIS
66# include <sys/vuid_event.h>
67# include <sys/msio.h>
68# include <errno.h>
69# include <fcntl.h>
70# include <unistd.h>
71#endif
72
73/** Clear the virtual framebuffer in VRAM. Optionally also clear up to the
74 * size of a new framebuffer. Framebuffer sizes larger than available VRAM
75 * be treated as zero and passed over. */
76void vbvxClearVRAM(ScrnInfoPtr pScrn, size_t cbOldSize, size_t cbNewSize)
77{
78 VBOXPtr pVBox = VBOXGetRec(pScrn);
79
80 /* Assume 32BPP - this is just a sanity test. */
81 VBVXASSERT( cbOldSize / 4 <= VBOX_VIDEO_MAX_VIRTUAL * VBOX_VIDEO_MAX_VIRTUAL
82 && cbNewSize / 4 <= VBOX_VIDEO_MAX_VIRTUAL * VBOX_VIDEO_MAX_VIRTUAL,
83 ("cbOldSize=%llu cbNewSize=%llu, max=%u.\n", (unsigned long long)cbOldSize, (unsigned long long)cbNewSize,
84 VBOX_VIDEO_MAX_VIRTUAL * VBOX_VIDEO_MAX_VIRTUAL));
85 if (cbOldSize > (size_t)pVBox->cbFBMax)
86 cbOldSize = pVBox->cbFBMax;
87 if (cbNewSize > (size_t)pVBox->cbFBMax)
88 cbNewSize = pVBox->cbFBMax;
89 memset(pVBox->base, 0, max(cbOldSize, cbNewSize));
90}
91
92/** Set a graphics mode. Poke any required values into registers, do an HGSMI
93 * mode set and tell the host we support advanced graphics functions.
94 */
95void vbvxSetMode(ScrnInfoPtr pScrn, unsigned cDisplay, unsigned cWidth, unsigned cHeight, int x, int y, bool fEnabled,
96 bool fConnected, struct vbvxFrameBuffer *pFrameBuffer)
97{
98 VBOXPtr pVBox = VBOXGetRec(pScrn);
99 uint32_t offStart;
100 uint16_t fFlags;
101 int rc;
102 bool fEnabledAndVisible = fEnabled && x + cWidth <= pFrameBuffer->cWidth && y + cHeight <= pFrameBuffer->cHeight;
103 /* Recent host code has a flag to blank the screen; older code needs BPP set to zero. */
104 uint32_t cBPP = fEnabledAndVisible || pVBox->fHostHasScreenBlankingFlag ? pFrameBuffer->cBPP : 0;
105
106 TRACE_LOG("cDisplay=%u, cWidth=%u, cHeight=%u, x=%d, y=%d, fEnabled=%d, fConnected=%d, pFrameBuffer: { x0=%d, y0=%d, cWidth=%u, cHeight=%u, cBPP=%u }\n",
107 cDisplay, cWidth, cHeight, x, y, fEnabled, fConnected, pFrameBuffer->x0, pFrameBuffer->y0, pFrameBuffer->cWidth,
108 pFrameBuffer->cHeight, pFrameBuffer->cBPP);
109 VBVXASSERT(cWidth != 0 && cHeight != 0, ("cWidth = 0 or cHeight = 0\n"));
110 offStart = (y * pFrameBuffer->cWidth + x) * pFrameBuffer->cBPP / 8;
111 if (cDisplay == 0 && fEnabled)
112 VBoxVideoSetModeRegisters(cWidth, cHeight, pFrameBuffer->cWidth, pFrameBuffer->cBPP, 0, x, y);
113 fFlags = VBVA_SCREEN_F_ACTIVE;
114 fFlags |= (fConnected ? 0 : VBVA_SCREEN_F_DISABLED);
115 fFlags |= (!fEnabledAndVisible && pVBox->fHostHasScreenBlankingFlag ? VBVA_SCREEN_F_BLANK : 0);
116 VBoxHGSMIProcessDisplayInfo(&pVBox->guestCtx, cDisplay, x - pFrameBuffer->x0, y - pFrameBuffer->y0, offStart,
117 pFrameBuffer->cWidth * pFrameBuffer->cBPP / 8, cWidth, cHeight, cBPP, fFlags);
118 rc = VBoxHGSMIUpdateInputMapping(&pVBox->guestCtx, 0 - pFrameBuffer->x0, 0 - pFrameBuffer->y0, pFrameBuffer->cWidth,
119 pFrameBuffer->cHeight);
120 if (RT_FAILURE(rc))
121 FatalError("Failed to update the input mapping.\n");
122}
123
124/** Tell the virtual mouse device about the new virtual desktop size. */
125void vbvxSetSolarisMouseRange(int width, int height)
126{
127#ifdef RT_OS_SOLARIS
128 int rc;
129 int hMouse = open("/dev/mouse", O_RDWR);
130
131 if (hMouse >= 0)
132 {
133 do {
134 Ms_screen_resolution Res = { height, width };
135 rc = ioctl(hMouse, MSIOSRESOLUTION, &Res);
136 } while ((rc != 0) && (errno == EINTR));
137 close(hMouse);
138 }
139#else
140 (void)width; (void)height;
141#endif
142}
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