| 1 | /** @file
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| 2 | * VBox Host Guest Shared Memory Interface (HGSMI).
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| 3 | * OS-independent guest structures.
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| 4 | */
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| 5 |
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| 6 | /*
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| 7 | * Copyright (C) 2006-2017 Oracle Corporation
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| 8 | *
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| 9 | * Permission is hereby granted, free of charge, to any person obtaining a
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| 10 | * copy of this software and associated documentation files (the "Software"),
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| 11 | * to deal in the Software without restriction, including without limitation
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| 12 | * the rights to use, copy, modify, merge, publish, distribute, sublicense,
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| 13 | * and/or sell copies of the Software, and to permit persons to whom the
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| 14 | * Software is furnished to do so, subject to the following conditions:
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| 15 | *
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| 16 | * The above copyright notice and this permission notice shall be included in
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| 17 | * all copies or substantial portions of the Software.
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| 18 | *
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| 19 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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| 20 | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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| 21 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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| 22 | * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
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| 23 | * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
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| 24 | * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
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| 25 | * OTHER DEALINGS IN THE SOFTWARE.
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| 26 | */
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| 27 |
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| 28 |
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| 29 | #ifndef ___VBox_Graphics_VBoxVideoGuest_h___
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| 30 | #define ___VBox_Graphics_VBoxVideoGuest_h___
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| 31 |
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| 32 | #include <HGSMIBase.h>
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| 33 | #include <VBoxVideo.h>
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| 34 | #include <VBoxVideoIPRT.h>
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| 35 |
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| 36 | RT_C_DECLS_BEGIN
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| 37 |
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| 38 | /**
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| 39 | * Structure grouping the context needed for sending graphics acceleration
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| 40 | * information to the host via VBVA. Each screen has its own VBVA buffer.
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| 41 | */
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| 42 | typedef struct VBVABUFFERCONTEXT
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| 43 | {
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| 44 | /** Offset of the buffer in the VRAM section for the screen */
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| 45 | uint32_t offVRAMBuffer;
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| 46 | /** Length of the buffer in bytes */
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| 47 | uint32_t cbBuffer;
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| 48 | /** This flag is set if we wrote to the buffer faster than the host could
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| 49 | * read it. */
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| 50 | bool fHwBufferOverflow;
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| 51 | /** The VBVA record that we are currently preparing for the host, NULL if
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| 52 | * none. */
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| 53 | struct VBVARECORD *pRecord;
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| 54 | /** Pointer to the VBVA buffer mapped into the current address space. Will
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| 55 | * be NULL if VBVA is not enabled. */
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| 56 | struct VBVABUFFER *pVBVA;
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| 57 | } VBVABUFFERCONTEXT, *PVBVABUFFERCONTEXT;
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| 58 |
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| 59 | /** @name Base HGSMI APIs
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| 60 | * @{ */
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| 61 |
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| 62 | DECLHIDDEN(bool) VBoxHGSMIIsSupported(void);
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| 63 | DECLHIDDEN(void) VBoxHGSMIGetBaseMappingInfo(uint32_t cbVRAM,
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| 64 | uint32_t *poffVRAMBaseMapping,
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| 65 | uint32_t *pcbMapping,
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| 66 | uint32_t *poffGuestHeapMemory,
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| 67 | uint32_t *pcbGuestHeapMemory,
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| 68 | uint32_t *poffHostFlags);
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| 69 | DECLHIDDEN(int) VBoxHGSMIReportFlagsLocation(PHGSMIGUESTCOMMANDCONTEXT pCtx,
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| 70 | HGSMIOFFSET offLocation);
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| 71 | DECLHIDDEN(int) VBoxHGSMISendCapsInfo(PHGSMIGUESTCOMMANDCONTEXT pCtx,
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| 72 | uint32_t fCaps);
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| 73 | DECLHIDDEN(void) VBoxHGSMIGetHostAreaMapping(PHGSMIGUESTCOMMANDCONTEXT pCtx,
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| 74 | uint32_t cbVRAM,
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| 75 | uint32_t offVRAMBaseMapping,
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| 76 | uint32_t *poffVRAMHostArea,
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| 77 | uint32_t *pcbHostArea);
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| 78 | DECLHIDDEN(int) VBoxHGSMISendHostCtxInfo(PHGSMIGUESTCOMMANDCONTEXT pCtx,
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| 79 | HGSMIOFFSET offVRAMFlagsLocation,
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| 80 | uint32_t fCaps,
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| 81 | uint32_t offVRAMHostArea,
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| 82 | uint32_t cbHostArea);
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| 83 | DECLHIDDEN(int) VBoxQueryConfHGSMI(PHGSMIGUESTCOMMANDCONTEXT pCtx,
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| 84 | uint32_t u32Index, uint32_t *pulValue);
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| 85 | DECLHIDDEN(int) VBoxQueryConfHGSMIDef(PHGSMIGUESTCOMMANDCONTEXT pCtx,
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| 86 | uint32_t u32Index, uint32_t u32DefValue, uint32_t *pulValue);
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| 87 | DECLHIDDEN(int) VBoxHGSMIUpdatePointerShape(PHGSMIGUESTCOMMANDCONTEXT pCtx,
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| 88 | uint32_t fFlags,
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| 89 | uint32_t cHotX,
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| 90 | uint32_t cHotY,
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| 91 | uint32_t cWidth,
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| 92 | uint32_t cHeight,
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| 93 | uint8_t *pPixels,
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| 94 | uint32_t cbLength);
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| 95 | DECLHIDDEN(int) VBoxHGSMICursorPosition(PHGSMIGUESTCOMMANDCONTEXT pCtx, bool fReportPosition, uint32_t x, uint32_t y,
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| 96 | uint32_t *pxHost, uint32_t *pyHost);
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| 97 |
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| 98 | /** @} */
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| 99 |
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| 100 | /** @name VBVA APIs
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| 101 | * @{ */
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| 102 | DECLHIDDEN(bool) VBoxVBVAEnable(PVBVABUFFERCONTEXT pCtx,
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| 103 | PHGSMIGUESTCOMMANDCONTEXT pHGSMICtx,
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| 104 | struct VBVABUFFER *pVBVA, int32_t cScreen);
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| 105 | DECLHIDDEN(void) VBoxVBVADisable(PVBVABUFFERCONTEXT pCtx,
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| 106 | PHGSMIGUESTCOMMANDCONTEXT pHGSMICtx,
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| 107 | int32_t cScreen);
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| 108 | DECLHIDDEN(bool) VBoxVBVABufferBeginUpdate(PVBVABUFFERCONTEXT pCtx,
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| 109 | PHGSMIGUESTCOMMANDCONTEXT pHGSMICtx);
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| 110 | DECLHIDDEN(void) VBoxVBVABufferEndUpdate(PVBVABUFFERCONTEXT pCtx);
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| 111 | DECLHIDDEN(bool) VBoxVBVAWrite(PVBVABUFFERCONTEXT pCtx,
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| 112 | PHGSMIGUESTCOMMANDCONTEXT pHGSMICtx,
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| 113 | const void *pv, uint32_t cb);
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| 114 | DECLHIDDEN(bool) VBoxVBVAOrderSupported(PVBVABUFFERCONTEXT pCtx, unsigned code);
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| 115 | DECLHIDDEN(void) VBoxVBVASetupBufferContext(PVBVABUFFERCONTEXT pCtx,
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| 116 | uint32_t offVRAMBuffer,
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| 117 | uint32_t cbBuffer);
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| 118 |
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| 119 | /** @} */
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| 120 |
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| 121 | /** @name Modesetting APIs
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| 122 | * @{ */
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| 123 |
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| 124 | DECLHIDDEN(uint32_t) VBoxHGSMIGetMonitorCount(PHGSMIGUESTCOMMANDCONTEXT pCtx);
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| 125 | DECLHIDDEN(uint32_t) VBoxVideoGetVRAMSize(void);
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| 126 | DECLHIDDEN(bool) VBoxVideoAnyWidthAllowed(void);
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| 127 | DECLHIDDEN(uint16_t) VBoxHGSMIGetScreenFlags(PHGSMIGUESTCOMMANDCONTEXT pCtx);
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| 128 |
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| 129 | struct VBVAINFOVIEW;
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| 130 | /**
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| 131 | * Callback funtion called from @a VBoxHGSMISendViewInfo to initialise
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| 132 | * the @a VBVAINFOVIEW structure for each screen.
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| 133 | *
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| 134 | * @returns iprt status code
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| 135 | * @param pvData context data for the callback, passed to @a
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| 136 | * VBoxHGSMISendViewInfo along with the callback
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| 137 | * @param pInfo array of @a VBVAINFOVIEW structures to be filled in
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| 138 | * @todo explicitly pass the array size
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| 139 | */
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| 140 | typedef DECLCALLBACK(int) FNHGSMIFILLVIEWINFO(void *pvData,
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| 141 | struct VBVAINFOVIEW *pInfo,
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| 142 | uint32_t cViews);
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| 143 | /** Pointer to a FNHGSMIFILLVIEWINFO callback */
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| 144 | typedef FNHGSMIFILLVIEWINFO *PFNHGSMIFILLVIEWINFO;
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| 145 |
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| 146 | DECLHIDDEN(int) VBoxHGSMISendViewInfo(PHGSMIGUESTCOMMANDCONTEXT pCtx,
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| 147 | uint32_t u32Count,
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| 148 | PFNHGSMIFILLVIEWINFO pfnFill,
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| 149 | void *pvData);
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| 150 | DECLHIDDEN(void) VBoxVideoSetModeRegisters(uint16_t cWidth, uint16_t cHeight,
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| 151 | uint16_t cVirtWidth, uint16_t cBPP,
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| 152 | uint16_t fFlags,
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| 153 | uint16_t cx, uint16_t cy);
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| 154 | DECLHIDDEN(bool) VBoxVideoGetModeRegisters(uint16_t *pcWidth,
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| 155 | uint16_t *pcHeight,
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| 156 | uint16_t *pcVirtWidth,
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| 157 | uint16_t *pcBPP,
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| 158 | uint16_t *pfFlags);
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| 159 | DECLHIDDEN(void) VBoxVideoDisableVBE(void);
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| 160 | DECLHIDDEN(void) VBoxHGSMIProcessDisplayInfo(PHGSMIGUESTCOMMANDCONTEXT pCtx,
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| 161 | uint32_t cDisplay,
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| 162 | int32_t cOriginX,
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| 163 | int32_t cOriginY,
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| 164 | uint32_t offStart,
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| 165 | uint32_t cbPitch,
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| 166 | uint32_t cWidth,
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| 167 | uint32_t cHeight,
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| 168 | uint16_t cBPP,
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| 169 | uint16_t fFlags);
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| 170 | DECLHIDDEN(int) VBoxHGSMIUpdateInputMapping(PHGSMIGUESTCOMMANDCONTEXT pCtx, int32_t cOriginX, int32_t cOriginY,
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| 171 | uint32_t cWidth, uint32_t cHeight);
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| 172 | DECLHIDDEN(int) VBoxHGSMIGetModeHints(PHGSMIGUESTCOMMANDCONTEXT pCtx,
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| 173 | unsigned cScreens, VBVAMODEHINT *paHints);
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| 174 |
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| 175 | /** @} */
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| 176 |
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| 177 | RT_C_DECLS_END
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| 178 |
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| 179 | #endif
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| 180 |
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