[51436] | 1 | /* $Id: DisplaySourceBitmapImpl.cpp 98103 2023-01-17 14:15:46Z vboxsync $ */
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| 2 | /** @file
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| 3 | * Bitmap of a guest screen implementation.
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| 4 | */
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| 5 |
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| 6 | /*
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[98103] | 7 | * Copyright (C) 2014-2023 Oracle and/or its affiliates.
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[51436] | 8 | *
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[96407] | 9 | * This file is part of VirtualBox base platform packages, as
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| 10 | * available from https://www.virtualbox.org.
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| 11 | *
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| 12 | * This program is free software; you can redistribute it and/or
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| 13 | * modify it under the terms of the GNU General Public License
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| 14 | * as published by the Free Software Foundation, in version 3 of the
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| 15 | * License.
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| 16 | *
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| 17 | * This program is distributed in the hope that it will be useful, but
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| 18 | * WITHOUT ANY WARRANTY; without even the implied warranty of
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| 19 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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| 20 | * General Public License for more details.
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| 21 | *
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| 22 | * You should have received a copy of the GNU General Public License
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| 23 | * along with this program; if not, see <https://www.gnu.org/licenses>.
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| 24 | *
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| 25 | * SPDX-License-Identifier: GPL-3.0-only
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[51436] | 26 | */
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| 27 |
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[67914] | 28 | #define LOG_GROUP LOG_GROUP_MAIN_DISPLAYSOURCEBITMAP
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| 29 | #include "LoggingNew.h"
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| 30 |
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[51436] | 31 | #include "DisplayImpl.h"
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| 32 |
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| 33 | /*
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| 34 | * DisplaySourceBitmap implementation.
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| 35 | */
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| 36 | DEFINE_EMPTY_CTOR_DTOR(DisplaySourceBitmap)
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| 37 |
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| 38 | HRESULT DisplaySourceBitmap::FinalConstruct()
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| 39 | {
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| 40 | return BaseFinalConstruct();
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| 41 | }
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| 42 |
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| 43 | void DisplaySourceBitmap::FinalRelease()
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| 44 | {
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| 45 | uninit();
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| 46 |
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| 47 | BaseFinalRelease();
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| 48 | }
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| 49 |
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| 50 | HRESULT DisplaySourceBitmap::init(ComObjPtr<Display> pDisplay, unsigned uScreenId, DISPLAYFBINFO *pFBInfo)
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| 51 | {
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| 52 | LogFlowThisFunc(("[%u]\n", uScreenId));
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| 53 |
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| 54 | ComAssertRet(!pDisplay.isNull(), E_INVALIDARG);
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| 55 |
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| 56 | /* Enclose the state transition NotReady->InInit->Ready */
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| 57 | AutoInitSpan autoInitSpan(this);
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| 58 | AssertReturn(autoInitSpan.isOk(), E_FAIL);
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| 59 |
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| 60 | m.pDisplay = pDisplay;
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| 61 | m.uScreenId = uScreenId;
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| 62 | m.pFBInfo = pFBInfo;
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| 63 |
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| 64 | m.pu8Allocated = NULL;
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| 65 |
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| 66 | m.pu8Address = NULL;
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| 67 | m.ulWidth = 0;
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| 68 | m.ulHeight = 0;
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| 69 | m.ulBitsPerPixel = 0;
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| 70 | m.ulBytesPerLine = 0;
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[54828] | 71 | m.bitmapFormat = BitmapFormat_Opaque;
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[51436] | 72 |
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[94921] | 73 | int vrc = initSourceBitmap(uScreenId, pFBInfo);
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| 74 | if (RT_FAILURE(vrc))
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[51436] | 75 | return E_FAIL;
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| 76 |
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| 77 | /* Confirm a successful initialization */
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| 78 | autoInitSpan.setSucceeded();
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| 79 |
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| 80 | return S_OK;
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| 81 | }
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| 82 |
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| 83 | void DisplaySourceBitmap::uninit()
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| 84 | {
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| 85 | /* Enclose the state transition Ready->InUninit->NotReady */
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| 86 | AutoUninitSpan autoUninitSpan(this);
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| 87 | if (autoUninitSpan.uninitDone())
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| 88 | return;
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| 89 |
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| 90 | LogFlowThisFunc(("[%u]\n", m.uScreenId));
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| 91 |
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| 92 | AutoWriteLock alock(this COMMA_LOCKVAL_SRC_POS);
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| 93 |
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| 94 | m.pDisplay.setNull();
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| 95 | RTMemFree(m.pu8Allocated);
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| 96 | }
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| 97 |
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| 98 | HRESULT DisplaySourceBitmap::getScreenId(ULONG *aScreenId)
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| 99 | {
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[94921] | 100 | HRESULT hrc = S_OK;
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[51436] | 101 | AutoReadLock alock(this COMMA_LOCKVAL_SRC_POS);
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| 102 |
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| 103 | *aScreenId = m.uScreenId;
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[94921] | 104 | return hrc;
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[51436] | 105 | }
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| 106 |
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| 107 | HRESULT DisplaySourceBitmap::queryBitmapInfo(BYTE **aAddress,
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| 108 | ULONG *aWidth,
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| 109 | ULONG *aHeight,
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| 110 | ULONG *aBitsPerPixel,
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| 111 | ULONG *aBytesPerLine,
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[54828] | 112 | BitmapFormat_T *aBitmapFormat)
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[51436] | 113 | {
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[94921] | 114 | HRESULT hrc = S_OK;
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[51436] | 115 | AutoReadLock alock(this COMMA_LOCKVAL_SRC_POS);
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| 116 |
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| 117 | *aAddress = m.pu8Address;
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| 118 | *aWidth = m.ulWidth;
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| 119 | *aHeight = m.ulHeight;
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| 120 | *aBitsPerPixel = m.ulBitsPerPixel;
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| 121 | *aBytesPerLine = m.ulBytesPerLine;
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[54828] | 122 | *aBitmapFormat = m.bitmapFormat;
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[51436] | 123 |
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[94921] | 124 | return hrc;
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[51436] | 125 | }
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| 126 |
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| 127 | int DisplaySourceBitmap::initSourceBitmap(unsigned aScreenId,
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| 128 | DISPLAYFBINFO *pFBInfo)
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| 129 | {
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[63259] | 130 | RT_NOREF(aScreenId);
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[94921] | 131 | int vrc = VINF_SUCCESS;
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[51436] | 132 |
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| 133 | if (pFBInfo->w == 0 || pFBInfo->h == 0)
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| 134 | {
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| 135 | return VERR_NOT_SUPPORTED;
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| 136 | }
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| 137 |
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| 138 | BYTE *pAddress = NULL;
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| 139 | ULONG ulWidth = 0;
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| 140 | ULONG ulHeight = 0;
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| 141 | ULONG ulBitsPerPixel = 0;
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| 142 | ULONG ulBytesPerLine = 0;
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[54828] | 143 | BitmapFormat_T bitmapFormat = BitmapFormat_Opaque;
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[51436] | 144 |
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[55328] | 145 | if (pFBInfo->pu8FramebufferVRAM && pFBInfo->u16BitsPerPixel == 32 && !pFBInfo->fDisabled)
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[51436] | 146 | {
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| 147 | /* From VRAM. */
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| 148 | LogFunc(("%d from VRAM\n", aScreenId));
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| 149 | pAddress = pFBInfo->pu8FramebufferVRAM;
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| 150 | ulWidth = pFBInfo->w;
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| 151 | ulHeight = pFBInfo->h;
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| 152 | ulBitsPerPixel = pFBInfo->u16BitsPerPixel;
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| 153 | ulBytesPerLine = pFBInfo->u32LineSize;
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[54828] | 154 | bitmapFormat = BitmapFormat_BGR;
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[51436] | 155 | m.pu8Allocated = NULL;
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| 156 | }
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| 157 | else
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| 158 | {
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| 159 | /* Allocated byffer */
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| 160 | LogFunc(("%d allocated\n", aScreenId));
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| 161 | pAddress = NULL;
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| 162 | ulWidth = pFBInfo->w;
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| 163 | ulHeight = pFBInfo->h;
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| 164 | ulBitsPerPixel = 32;
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| 165 | ulBytesPerLine = ulWidth * 4;
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[54828] | 166 | bitmapFormat = BitmapFormat_BGR;
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[51436] | 167 |
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| 168 | m.pu8Allocated = (uint8_t *)RTMemAlloc(ulBytesPerLine * ulHeight);
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| 169 | if (m.pu8Allocated == NULL)
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| 170 | {
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[94921] | 171 | vrc = VERR_NO_MEMORY;
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[51436] | 172 | }
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| 173 | else
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| 174 | {
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| 175 | pAddress = m.pu8Allocated;
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| 176 | }
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| 177 | }
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| 178 |
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[94921] | 179 | if (RT_SUCCESS(vrc))
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[51436] | 180 | {
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| 181 | m.pu8Address = pAddress;
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| 182 | m.ulWidth = ulWidth;
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| 183 | m.ulHeight = ulHeight;
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| 184 | m.ulBitsPerPixel = ulBitsPerPixel;
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| 185 | m.ulBytesPerLine = ulBytesPerLine;
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[54828] | 186 | m.bitmapFormat = bitmapFormat;
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[55328] | 187 | if (pFBInfo->fDisabled)
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| 188 | {
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| 189 | RT_BZERO(pAddress, ulBytesPerLine * ulHeight);
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| 190 | }
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[51436] | 191 | }
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| 192 |
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[94921] | 193 | return vrc;
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[51436] | 194 | }
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| 195 |
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| 196 | /* vi: set tabstop=4 shiftwidth=4 expandtab: */
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