| 1 | /* $Id$ */
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| 2 | /** @file
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| 3 | * VBoxGuestR3Lib - Ring-3 Support Library for VirtualBox guest additions, Video.
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| 4 | */
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| 5 |
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| 6 | /*
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| 7 | * Copyright (C) 2007 innotek GmbH
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| 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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| 18 |
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| 19 | /*******************************************************************************
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| 20 | * Header Files *
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| 21 | *******************************************************************************/
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| 22 | #include <iprt/string.h>
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| 23 | #include <iprt/mem.h>
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| 24 |
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| 25 | #include "VBGLR3Internal.h"
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| 26 |
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| 27 |
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| 28 | /**
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| 29 | * Enable or disable video acceleration.
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| 30 | *
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| 31 | * @returns VBox status code.
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| 32 | *
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| 33 | * @param fEnable Pass zero to disable, any other value to enable.
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| 34 | */
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| 35 | VBGLR3DECL(int) VbglR3VideoAccelEnable(bool fEnable)
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| 36 | {
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| 37 | VMMDevVideoAccelEnable Req;
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| 38 | vmmdevInitRequest(&Req.header, VMMDevReq_VideoAccelEnable);
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| 39 | Req.u32Enable = fEnable;
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| 40 | Req.cbRingBuffer = VBVA_RING_BUFFER_SIZE;
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| 41 | Req.fu32Status = 0;
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| 42 | return vbglR3GRPerform(&Req.header);
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| 43 | }
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| 44 |
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| 45 |
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| 46 | /**
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| 47 | * Flush the video buffer.
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| 48 | *
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| 49 | * @returns VBox status code.
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| 50 | */
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| 51 | VBGLR3DECL(int) VbglR3VideoAccelFlush(void)
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| 52 | {
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| 53 | VMMDevVideoAccelFlush Req;
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| 54 | vmmdevInitRequest(&Req.header, VMMDevReq_VideoAccelFlush);
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| 55 | return vbglR3GRPerform(&Req.header);
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| 56 | }
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| 57 |
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| 58 |
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| 59 | /**
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| 60 | * Send mouse pointer shape information to the host.
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| 61 | *
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| 62 | * @returns VBox status code.
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| 63 | *
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| 64 | * @param fFlags Mouse pointer flags.
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| 65 | * @param xHot X coordinate of hot spot.
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| 66 | * @param yHot Y coordinate of hot spot.
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| 67 | * @param cx Pointer width.
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| 68 | * @param cy Pointer height.
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| 69 | * @param pvImg Pointer to the image data (can be NULL).
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| 70 | * @param cbImg Size of the image data pointed to by pvImg.
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| 71 | */
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| 72 | VBGLR3DECL(int) VbglR3SetPointerShape(uint32_t fFlags, uint32_t xHot, uint32_t yHot, uint32_t cx, uint32_t cy, const void *pvImg, size_t cbImg)
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| 73 | {
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| 74 | VMMDevReqMousePointer *pReq;
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| 75 | int rc = vbglR3GRAlloc((VMMDevRequestHeader **)&pReq, RT_OFFSETOF(VMMDevReqMousePointer, pointerData) + cbImg, VMMDevReq_SetPointerShape);
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| 76 | if (RT_SUCCESS(rc))
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| 77 | {
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| 78 | pReq->fFlags = fFlags;
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| 79 | pReq->xHot = xHot;
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| 80 | pReq->yHot = yHot;
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| 81 | pReq->width = cx;
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| 82 | pReq->height = cy;
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| 83 | if (pvImg)
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| 84 | memcpy(pReq->pointerData, pvImg, cbImg);
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| 85 |
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| 86 | rc = vbglR3GRPerform(&pReq->header);
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| 87 | vbglR3GRFree(&pReq->header);
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| 88 | if (RT_SUCCESS(rc))
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| 89 | {
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| 90 | if (RT_SUCCESS(pReq->header.rc))
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| 91 | return VINF_SUCCESS;
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| 92 |
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| 93 | rc = pReq->header.rc;
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| 94 | }
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| 95 | }
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| 96 | return rc;
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| 97 | }
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| 98 |
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| 99 |
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| 100 | /**
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| 101 | * Send mouse pointer shape information to the host.
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| 102 | * This version of the function accepts a request for clients that
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| 103 | * already allocate and manipulate the request structure directly.
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| 104 | *
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| 105 | * @returns VBox status code.
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| 106 | *
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| 107 | * @param pReq Pointer to the VMMDevReqMousePointer structure.
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| 108 | */
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| 109 | VBGLR3DECL(int) VbglR3SetPointerShapeReq(VMMDevReqMousePointer *pReq)
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| 110 | {
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| 111 | int rc = vbglR3GRPerform(&pReq->header);
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| 112 | if (RT_SUCCESS(rc))
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| 113 | rc = pReq->header.rc;
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| 114 | return rc;
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| 115 | }
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| 116 |
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| 117 |
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| 118 | /**
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| 119 | * Query the last display change request.
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| 120 | *
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| 121 | * @returns iprt status value
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| 122 | * @param pcx Where to store the horizontal pixel resolution (0 = do not change).
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| 123 | * @param pcy Where to store the vertical pixel resolution (0 = do not change).
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| 124 | * @param pcBits Where to store the bits per pixel (0 = do not change).
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| 125 | * @param fEventAck Flag that the request is an acknowlegement for the
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| 126 | * VMMDEV_EVENT_DISPLAY_CHANGE_REQUEST.
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| 127 | * Values:
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| 128 | * 0 - just querying,
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| 129 | * VMMDEV_EVENT_DISPLAY_CHANGE_REQUEST - event acknowledged.
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| 130 | * @param iDisplay 0 for primary display, 1 for the first secondary, etc.
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| 131 | */
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| 132 | VBGLR3DECL(int) VbglR3GetDisplayChangeRequest(uint32_t *pcx, uint32_t *pcy, uint32_t *pcBits,
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| 133 | uint32_t fEventAck, uint32_t iDisplay)
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| 134 | {
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| 135 | VMMDevDisplayChangeRequest2 Req;
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| 136 | vmmdevInitRequest(&Req.header, VMMDevReq_GetDisplayChangeRequest2);
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| 137 | Req.xres = 0;
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| 138 | Req.yres = 0;
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| 139 | Req.bpp = 0;
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| 140 | Req.eventAck = fEventAck;
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| 141 | Req.display = iDisplay;
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| 142 | int rc = vbglR3GRPerform(&Req.header);
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| 143 | if (RT_SUCCESS(rc))
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| 144 | rc = Req.header.rc;
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| 145 | if (RT_SUCCESS(rc))
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| 146 | {
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| 147 | *pcx = Req.xres;
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| 148 | *pcy = Req.yres;
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| 149 | *pcBits = Req.bpp;
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| 150 | }
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| 151 | return rc;
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| 152 | }
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