1 files changed, 129 insertions, 0 deletions
diff --git a/src/VBox/Additions/x11/vboxvideo/setmode.c b/src/VBox/Additions/x11/vboxvideo/setmode.c
new file mode 100644
index 00000000..876c043c
--- /dev/null
+++ b/src/VBox/Additions/x11/vboxvideo/setmode.c
@@ -0,0 +1,129 @@
+/* $Id: setmode.c $ */
+/** @file
+ * Linux Additions X11 graphics driver, mode setting
+ */
+
+/*
+ * Copyright (C) 2006-2023 Oracle and/or its affiliates.
+ * This file is based on X11 VESA driver (hardly any traces left here):
+ *
+ * Copyright (c) 2000 by Conectiva S.A. (http://www.conectiva.com)
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDERS, AUTHORS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM,
+ * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
+ * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
+ * USE OR OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * Except as contained in this notice, the name of Conectiva Linux shall
+ * not be used in advertising or otherwise to promote the sale, use or other
+ * dealings in this Software without prior written authorization from
+ * Conectiva Linux.
+ *
+ * Authors: Paulo César Pereira de Andrade <pcpa@conectiva.com.br>
+ *          Michael Thayer <michael.thayer@oracle.com>
+ */
+
+#ifdef XORG_7X
+/* We include <unistd.h> for Solaris below, and the ANSI C emulation layer
+ * interferes with that. */
+# define _XF86_ANSIC_H
+# define XF86_LIBC_H
+# include <string.h>
+#endif
+#include "vboxvideo.h"
+#include "xf86.h"
+
+/* VGA hardware functions for setting and restoring text mode */
+#include "vgaHW.h"
+
+#ifdef RT_OS_SOLARIS
+# include <sys/vuid_event.h>
+# include <sys/msio.h>
+# include <errno.h>
+# include <fcntl.h>
+# include <unistd.h>
+#endif
+
+/** Clear the virtual framebuffer in VRAM.  Optionally also clear up to the
+ * size of a new framebuffer.  Framebuffer sizes larger than available VRAM
+ * be treated as zero and passed over. */
+void vbvxClearVRAM(ScrnInfoPtr pScrn, size_t cbOldSize, size_t cbNewSize)
+{
+    VBOXPtr pVBox = VBOXGetRec(pScrn);
+
+    /* Assume 32BPP - this is just a sanity test. */
+    AssertMsg(   cbOldSize / 4 <= VBOX_VIDEO_MAX_VIRTUAL * VBOX_VIDEO_MAX_VIRTUAL
+               && cbNewSize / 4 <= VBOX_VIDEO_MAX_VIRTUAL * VBOX_VIDEO_MAX_VIRTUAL,
+               ("cbOldSize=%llu cbNewSize=%llu, max=%u.\n", (unsigned long long)cbOldSize, (unsigned long long)cbNewSize,
+                VBOX_VIDEO_MAX_VIRTUAL * VBOX_VIDEO_MAX_VIRTUAL));
+    if (cbOldSize > (size_t)pVBox->cbFBMax)
+        cbOldSize = pVBox->cbFBMax;
+    if (cbNewSize > (size_t)pVBox->cbFBMax)
+        cbNewSize = pVBox->cbFBMax;
+    memset(pVBox->base, 0, max(cbOldSize, cbNewSize));
+}
+
+/** Set a graphics mode.  Poke any required values into registers, do an HGSMI
+ * mode set and tell the host we support advanced graphics functions.
+ */
+void vbvxSetMode(ScrnInfoPtr pScrn, unsigned cDisplay, unsigned cWidth, unsigned cHeight, int x, int y, Bool fEnabled,
+                 Bool fConnected, struct vbvxFrameBuffer *pFrameBuffer)
+{
+    VBOXPtr pVBox = VBOXGetRec(pScrn);
+    uint32_t offStart;
+    uint16_t fFlags;
+    int rc;
+    Bool fEnabledAndVisible = fEnabled && x + cWidth <= pFrameBuffer->cWidth && y + cHeight <= pFrameBuffer->cHeight;
+    /* Recent host code has a flag to blank the screen; older code needs BPP set to zero. */
+    uint32_t cBPP = fEnabledAndVisible || pVBox->fHostHasScreenBlankingFlag ? pFrameBuffer->cBPP : 0;
+
+    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",
+              cDisplay, cWidth, cHeight, x, y, fEnabled, fConnected, pFrameBuffer->x0, pFrameBuffer->y0, pFrameBuffer->cWidth,
+              pFrameBuffer->cHeight, pFrameBuffer->cBPP);
+    AssertMsg(cWidth != 0 && cHeight != 0, ("cWidth = 0 or cHeight = 0\n"));
+    offStart = (y * pFrameBuffer->cWidth + x) * pFrameBuffer->cBPP / 8;
+    if (cDisplay == 0 && fEnabled)
+        VBoxVideoSetModeRegisters(cWidth, cHeight, pFrameBuffer->cWidth, pFrameBuffer->cBPP, 0, x, y);
+    fFlags = VBVA_SCREEN_F_ACTIVE;
+    fFlags |= (fConnected ? 0 : VBVA_SCREEN_F_DISABLED);
+    fFlags |= (!fEnabledAndVisible && pVBox->fHostHasScreenBlankingFlag ? VBVA_SCREEN_F_BLANK : 0);
+    VBoxHGSMIProcessDisplayInfo(&pVBox->guestCtx, cDisplay, x - pFrameBuffer->x0, y - pFrameBuffer->y0, offStart,
+                                pFrameBuffer->cWidth * pFrameBuffer->cBPP / 8, cWidth, cHeight, cBPP, fFlags);
+    rc = VBoxHGSMIUpdateInputMapping(&pVBox->guestCtx, 0 - pFrameBuffer->x0, 0 - pFrameBuffer->y0, pFrameBuffer->cWidth,
+                                     pFrameBuffer->cHeight);
+    if (RT_FAILURE(rc))
+        FatalError("Failed to update the input mapping.\n");
+}
+
+/** Tell the virtual mouse device about the new virtual desktop size. */
+void vbvxSetSolarisMouseRange(int width, int height)
+{
+#ifdef RT_OS_SOLARIS
+    int rc;
+    int hMouse = open("/dev/mouse", O_RDWR);
+
+    if (hMouse >= 0)
+    {
+        do {
+            Ms_screen_resolution Res = { height, width };
+            rc = ioctl(hMouse, MSIOSRESOLUTION, &Res);
+        } while ((rc != 0) && (errno == EINTR));
+        close(hMouse);
+    }
+#else
+    (void)width; (void)height;
+#endif
+}