[51436] | 1 | /* $Id: DisplaySourceBitmapImpl.cpp 69500 2017-10-28 15:14:05Z 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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[69500] | 7 | * Copyright (C) 2014-2017 Oracle Corporation
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[51436] | 8 | *
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| 9 | * This file is part of VirtualBox Open Source Edition (OSE), as
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| 10 | * available from http://www.virtualbox.org. This file is free software;
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| 11 | * you can redistribute it and/or modify it under the terms of the GNU
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| 12 | * General Public License (GPL) as published by the Free Software
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| 13 | * Foundation, in version 2 as it comes in the "COPYING" file of the
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| 14 | * VirtualBox OSE distribution. VirtualBox OSE is distributed in the
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| 15 | * hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
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| 16 | */
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| 17 |
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[67914] | 18 | #define LOG_GROUP LOG_GROUP_MAIN_DISPLAYSOURCEBITMAP
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| 19 | #include "LoggingNew.h"
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| 20 |
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[51436] | 21 | #include "DisplayImpl.h"
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| 22 |
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| 23 | /*
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| 24 | * DisplaySourceBitmap implementation.
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| 25 | */
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| 26 | DEFINE_EMPTY_CTOR_DTOR(DisplaySourceBitmap)
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| 27 |
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| 28 | HRESULT DisplaySourceBitmap::FinalConstruct()
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| 29 | {
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| 30 | return BaseFinalConstruct();
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| 31 | }
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| 32 |
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| 33 | void DisplaySourceBitmap::FinalRelease()
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| 34 | {
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| 35 | uninit();
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| 36 |
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| 37 | BaseFinalRelease();
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| 38 | }
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| 39 |
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| 40 | HRESULT DisplaySourceBitmap::init(ComObjPtr<Display> pDisplay, unsigned uScreenId, DISPLAYFBINFO *pFBInfo)
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| 41 | {
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| 42 | LogFlowThisFunc(("[%u]\n", uScreenId));
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| 43 |
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| 44 | ComAssertRet(!pDisplay.isNull(), E_INVALIDARG);
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| 45 |
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| 46 | /* Enclose the state transition NotReady->InInit->Ready */
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| 47 | AutoInitSpan autoInitSpan(this);
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| 48 | AssertReturn(autoInitSpan.isOk(), E_FAIL);
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| 49 |
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| 50 | m.pDisplay = pDisplay;
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| 51 | m.uScreenId = uScreenId;
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| 52 | m.pFBInfo = pFBInfo;
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| 53 |
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| 54 | m.pu8Allocated = NULL;
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| 55 |
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| 56 | m.pu8Address = NULL;
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| 57 | m.ulWidth = 0;
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| 58 | m.ulHeight = 0;
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| 59 | m.ulBitsPerPixel = 0;
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| 60 | m.ulBytesPerLine = 0;
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[54828] | 61 | m.bitmapFormat = BitmapFormat_Opaque;
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[51436] | 62 |
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| 63 | int rc = initSourceBitmap(uScreenId, pFBInfo);
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| 64 |
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| 65 | if (RT_FAILURE(rc))
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| 66 | return E_FAIL;
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| 67 |
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| 68 | /* Confirm a successful initialization */
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| 69 | autoInitSpan.setSucceeded();
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| 70 |
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| 71 | return S_OK;
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| 72 | }
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| 73 |
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| 74 | void DisplaySourceBitmap::uninit()
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| 75 | {
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| 76 | /* Enclose the state transition Ready->InUninit->NotReady */
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| 77 | AutoUninitSpan autoUninitSpan(this);
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| 78 | if (autoUninitSpan.uninitDone())
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| 79 | return;
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| 80 |
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| 81 | LogFlowThisFunc(("[%u]\n", m.uScreenId));
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| 82 |
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| 83 | AutoWriteLock alock(this COMMA_LOCKVAL_SRC_POS);
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| 84 |
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| 85 | m.pDisplay.setNull();
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| 86 | RTMemFree(m.pu8Allocated);
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| 87 | }
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| 88 |
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| 89 | HRESULT DisplaySourceBitmap::getScreenId(ULONG *aScreenId)
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| 90 | {
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| 91 | HRESULT hr = S_OK;
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| 92 | AutoReadLock alock(this COMMA_LOCKVAL_SRC_POS);
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| 93 |
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| 94 | *aScreenId = m.uScreenId;
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| 95 | return hr;
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| 96 | }
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| 97 |
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| 98 | HRESULT DisplaySourceBitmap::queryBitmapInfo(BYTE **aAddress,
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| 99 | ULONG *aWidth,
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| 100 | ULONG *aHeight,
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| 101 | ULONG *aBitsPerPixel,
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| 102 | ULONG *aBytesPerLine,
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[54828] | 103 | BitmapFormat_T *aBitmapFormat)
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[51436] | 104 | {
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| 105 | HRESULT hr = S_OK;
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| 106 | AutoReadLock alock(this COMMA_LOCKVAL_SRC_POS);
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| 107 |
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| 108 | *aAddress = m.pu8Address;
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| 109 | *aWidth = m.ulWidth;
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| 110 | *aHeight = m.ulHeight;
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| 111 | *aBitsPerPixel = m.ulBitsPerPixel;
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| 112 | *aBytesPerLine = m.ulBytesPerLine;
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[54828] | 113 | *aBitmapFormat = m.bitmapFormat;
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[51436] | 114 |
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| 115 | return hr;
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| 116 | }
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| 117 |
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| 118 | int DisplaySourceBitmap::initSourceBitmap(unsigned aScreenId,
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| 119 | DISPLAYFBINFO *pFBInfo)
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| 120 | {
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[63259] | 121 | RT_NOREF(aScreenId);
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[51436] | 122 | int rc = VINF_SUCCESS;
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| 123 |
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| 124 | if (pFBInfo->w == 0 || pFBInfo->h == 0)
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| 125 | {
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| 126 | return VERR_NOT_SUPPORTED;
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| 127 | }
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| 128 |
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| 129 | BYTE *pAddress = NULL;
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| 130 | ULONG ulWidth = 0;
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| 131 | ULONG ulHeight = 0;
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| 132 | ULONG ulBitsPerPixel = 0;
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| 133 | ULONG ulBytesPerLine = 0;
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[54828] | 134 | BitmapFormat_T bitmapFormat = BitmapFormat_Opaque;
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[51436] | 135 |
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[55328] | 136 | if (pFBInfo->pu8FramebufferVRAM && pFBInfo->u16BitsPerPixel == 32 && !pFBInfo->fDisabled)
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[51436] | 137 | {
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| 138 | /* From VRAM. */
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| 139 | LogFunc(("%d from VRAM\n", aScreenId));
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| 140 | pAddress = pFBInfo->pu8FramebufferVRAM;
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| 141 | ulWidth = pFBInfo->w;
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| 142 | ulHeight = pFBInfo->h;
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| 143 | ulBitsPerPixel = pFBInfo->u16BitsPerPixel;
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| 144 | ulBytesPerLine = pFBInfo->u32LineSize;
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[54828] | 145 | bitmapFormat = BitmapFormat_BGR;
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[51436] | 146 | m.pu8Allocated = NULL;
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| 147 | }
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| 148 | else
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| 149 | {
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| 150 | /* Allocated byffer */
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| 151 | LogFunc(("%d allocated\n", aScreenId));
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| 152 | pAddress = NULL;
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| 153 | ulWidth = pFBInfo->w;
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| 154 | ulHeight = pFBInfo->h;
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| 155 | ulBitsPerPixel = 32;
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| 156 | ulBytesPerLine = ulWidth * 4;
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[54828] | 157 | bitmapFormat = BitmapFormat_BGR;
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[51436] | 158 |
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| 159 | m.pu8Allocated = (uint8_t *)RTMemAlloc(ulBytesPerLine * ulHeight);
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| 160 | if (m.pu8Allocated == NULL)
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| 161 | {
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| 162 | rc = VERR_NO_MEMORY;
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| 163 | }
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| 164 | else
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| 165 | {
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| 166 | pAddress = m.pu8Allocated;
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| 167 | }
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| 168 | }
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| 169 |
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| 170 | if (RT_SUCCESS(rc))
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| 171 | {
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| 172 | m.pu8Address = pAddress;
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| 173 | m.ulWidth = ulWidth;
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| 174 | m.ulHeight = ulHeight;
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| 175 | m.ulBitsPerPixel = ulBitsPerPixel;
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| 176 | m.ulBytesPerLine = ulBytesPerLine;
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[54828] | 177 | m.bitmapFormat = bitmapFormat;
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[55328] | 178 | if (pFBInfo->fDisabled)
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| 179 | {
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| 180 | RT_BZERO(pAddress, ulBytesPerLine * ulHeight);
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| 181 | }
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[51436] | 182 | }
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| 183 |
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| 184 | return rc;
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| 185 | }
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| 186 |
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| 187 | /* vi: set tabstop=4 shiftwidth=4 expandtab: */
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