Adding upstream version 7.0.6-dfsg.upstream/7.0.6-dfsgupstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 225 insertions, 0 deletions

diff --git a/src/VBox/Main/src-all/DisplayUtils.cpp b/src/VBox/Main/src-all/DisplayUtils.cpp
new file mode 100644
index 00000000..a75001d3
--- /dev/null
+++ b/src/VBox/Main/src-all/DisplayUtils.cpp
@@ -0,0 +1,225 @@
+/* $Id: DisplayUtils.cpp $ */
+/** @file
+ * Implementation of IDisplay helpers, currently only used in VBoxSVC.
+ */
+
+/*
+ * Copyright (C) 2010-2022 Oracle and/or its affiliates.
+ *
+ * This file is part of VirtualBox base platform packages, as
+ * available from https://www.virtualbox.org.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation, in version 3 of the
+ * License.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, see <https://www.gnu.org/licenses>.
+ *
+ * SPDX-License-Identifier: GPL-3.0-only
+ */
+
+#include <DisplayUtils.h>
+
+#include <iprt/log.h>
+#include <VBox/err.h>
+#include <VBox/vmm/ssm.h>
+#include <VBoxVideo.h>
+
+int readSavedDisplayScreenshot(SsmStream &ssmStream, const Utf8Str &strStateFilePath,
+                               uint32_t u32Type, uint8_t **ppu8Data, uint32_t *pcbData,
+                               uint32_t *pu32Width, uint32_t *pu32Height)
+{
+    LogFlowFunc(("u32Type = %d [%s]\n", u32Type, strStateFilePath.c_str()));
+
+    /** @todo cache read data */
+    if (strStateFilePath.isEmpty())
+    {
+        /* No saved state data. */
+        return VERR_NOT_SUPPORTED;
+    }
+
+    uint8_t *pu8Data = NULL;
+    uint32_t cbData = 0;
+    uint32_t u32Width = 0;
+    uint32_t u32Height = 0;
+
+    PSSMHANDLE pSSM;
+    int vrc = ssmStream.open(strStateFilePath.c_str(), false /*fWrite*/, &pSSM);
+    if (RT_SUCCESS(vrc))
+    {
+        uint32_t uVersion;
+        vrc = SSMR3Seek(pSSM, "DisplayScreenshot", 1100 /*iInstance*/, &uVersion);
+        if (RT_SUCCESS(vrc))
+        {
+            if (uVersion == sSSMDisplayScreenshotVer)
+            {
+                uint32_t cBlocks;
+                vrc = SSMR3GetU32(pSSM, &cBlocks);
+                AssertRCReturn(vrc, vrc);
+
+                for (uint32_t i = 0; i < cBlocks; i++)
+                {
+                    uint32_t cbBlock;
+                    vrc = SSMR3GetU32(pSSM, &cbBlock);
+                    AssertRCBreak(vrc);
+
+                    uint32_t typeOfBlock;
+                    vrc = SSMR3GetU32(pSSM, &typeOfBlock);
+                    AssertRCBreak(vrc);
+
+                    LogFlowFunc(("[%d] type %d, size %d bytes\n", i, typeOfBlock, cbBlock));
+
+                    if (typeOfBlock == u32Type)
+                    {
+                        if (cbBlock > 2 * sizeof(uint32_t))
+                        {
+                            cbData = (uint32_t)(cbBlock - 2 * sizeof(uint32_t));
+                            pu8Data = (uint8_t *)RTMemAlloc(cbData);
+                            if (pu8Data == NULL)
+                            {
+                                vrc = VERR_NO_MEMORY;
+                                break;
+                            }
+
+                            vrc = SSMR3GetU32(pSSM, &u32Width);
+                            AssertRCBreak(vrc);
+                            vrc = SSMR3GetU32(pSSM, &u32Height);
+                            AssertRCBreak(vrc);
+                            vrc = SSMR3GetMem(pSSM, pu8Data, cbData);
+                            AssertRCBreak(vrc);
+                        }
+                        else
+                        {
+                            /* No saved state data. */
+                            vrc = VERR_NOT_SUPPORTED;
+                        }
+
+                        break;
+                    }
+                    else
+                    {
+                        /* displaySSMSaveScreenshot did not write any data, if
+                         * cbBlock was == 2 * sizeof (uint32_t).
+                         */
+                        if (cbBlock > 2 * sizeof (uint32_t))
+                        {
+                            vrc = SSMR3Skip(pSSM, cbBlock);
+                            AssertRCBreak(vrc);
+                        }
+                    }
+                }
+            }
+            else
+            {
+                vrc = VERR_SSM_UNSUPPORTED_DATA_UNIT_VERSION;
+            }
+        }
+
+        ssmStream.close();
+    }
+
+    if (RT_SUCCESS(vrc))
+    {
+        if (u32Type == 0 && cbData % 4 != 0)
+        {
+            /* Bitmap is 32bpp, so data is invalid. */
+            vrc = VERR_SSM_UNEXPECTED_DATA;
+        }
+    }
+
+    if (RT_SUCCESS(vrc))
+    {
+        *ppu8Data = pu8Data;
+        *pcbData = cbData;
+        *pu32Width = u32Width;
+        *pu32Height = u32Height;
+        LogFlowFunc(("cbData %d, u32Width %d, u32Height %d\n", cbData, u32Width, u32Height));
+    }
+
+    LogFlowFunc(("vrc %Rrc\n", vrc));
+    return vrc;
+}
+
+void freeSavedDisplayScreenshot(uint8_t *pu8Data)
+{
+    /** @todo not necessary when caching is implemented. */
+    RTMemFree(pu8Data);
+}
+
+int readSavedGuestScreenInfo(SsmStream &ssmStream, const Utf8Str &strStateFilePath,
+                             uint32_t u32ScreenId, uint32_t *pu32OriginX, uint32_t *pu32OriginY,
+                             uint32_t *pu32Width, uint32_t *pu32Height, uint16_t *pu16Flags)
+{
+    LogFlowFunc(("u32ScreenId = %d [%s]\n", u32ScreenId, strStateFilePath.c_str()));
+
+    /** @todo cache read data */
+    if (strStateFilePath.isEmpty())
+    {
+        /* No saved state data. */
+        return VERR_NOT_SUPPORTED;
+    }
+
+    PSSMHANDLE pSSM;
+    int vrc = ssmStream.open(strStateFilePath.c_str(), false /*fWrite*/, &pSSM);
+    if (RT_SUCCESS(vrc))
+    {
+        uint32_t uVersion;
+        vrc = SSMR3Seek(pSSM, "DisplayData", 0 /*iInstance*/, &uVersion);
+        if (RT_SUCCESS(vrc))
+        {
+            /* Starting from sSSMDisplayVer2 we have pu32Width and pu32Height.
+             * Starting from sSSMDisplayVer3 we have all the rest of parameters we need. */
+            if (uVersion >= sSSMDisplayVer2)
+            {
+                uint32_t cMonitors;
+                SSMR3GetU32(pSSM, &cMonitors);
+                if (u32ScreenId > cMonitors)
+                {
+                    vrc = VERR_INVALID_PARAMETER;
+                }
+                else
+                {
+                    if (uVersion == sSSMDisplayVer2)
+                    {
+                        /* Skip all previous monitors, each 5 uint32_t, and the first 3 uint32_t entries. */
+                        SSMR3Skip(pSSM, u32ScreenId * 5 * sizeof(uint32_t) + 3 * sizeof(uint32_t));
+                        SSMR3GetU32(pSSM, pu32Width);
+                        SSMR3GetU32(pSSM, pu32Height);
+                        *pu32OriginX = 0;
+                        *pu32OriginY = 0;
+                        *pu16Flags = VBVA_SCREEN_F_ACTIVE;
+                    }
+                    else
+                    {
+                        /* Skip all previous monitors, each 8 uint32_t, and the first 3 uint32_t entries. */
+                        SSMR3Skip(pSSM, u32ScreenId * 8 * sizeof(uint32_t) + 3 * sizeof(uint32_t));
+                        SSMR3GetU32(pSSM, pu32Width);
+                        SSMR3GetU32(pSSM, pu32Height);
+                        SSMR3GetU32(pSSM, pu32OriginX);
+                        SSMR3GetU32(pSSM, pu32OriginY);
+                        uint32_t u32Flags = 0;
+                        SSMR3GetU32(pSSM, &u32Flags);
+                        *pu16Flags = (uint16_t)u32Flags;
+                    }
+                }
+            }
+            else
+            {
+                vrc = VERR_NOT_SUPPORTED;
+            }
+        }
+
+        ssmStream.close();
+    }
+
+    LogFlowFunc(("vrc %Rrc\n", vrc));
+    return vrc;
+}
+