| 1 | /* $Id: HGSMIMemAlloc.h 98103 2023-01-17 14:15:46Z vboxsync $ */
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| 2 | /*
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| 3 | * Copyright (C) 2017-2023 Oracle and/or its affiliates.
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| 4 | *
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| 5 | * Permission is hereby granted, free of charge, to any person
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| 6 | * obtaining a copy of this software and associated documentation
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| 7 | * files (the "Software"), to deal in the Software without
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| 8 | * restriction, including without limitation the rights to use,
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| 9 | * copy, modify, merge, publish, distribute, sublicense, and/or sell
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| 10 | * copies of the Software, and to permit persons to whom the
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| 11 | * Software is furnished to do so, subject to the following
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| 12 | * conditions:
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| 13 | *
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| 14 | * The above copyright notice and this permission notice shall be
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| 15 | * included in all copies or substantial portions of the Software.
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| 16 | *
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| 17 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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| 18 | * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
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| 19 | * OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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| 20 | * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
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| 21 | * HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
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| 22 | * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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| 23 | * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
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| 24 | * OTHER DEALINGS IN THE SOFTWARE.
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| 25 | */
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| 26 |
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| 27 |
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| 28 | /* In builds inside of the VirtualBox source tree we override the default
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| 29 | * HGSMIMemAlloc.h using -include, therefore this define must match the one
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| 30 | * there. */
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| 31 |
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| 32 | #ifndef VBOX_INCLUDED_Graphics_HGSMIMemAlloc_h
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| 33 | #define VBOX_INCLUDED_Graphics_HGSMIMemAlloc_h
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| 34 | #ifndef RT_WITHOUT_PRAGMA_ONCE
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| 35 | # pragma once
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| 36 | #endif
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| 37 |
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| 38 | #include "HGSMIDefs.h"
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| 39 | #include "VBoxVideoIPRT.h"
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| 40 |
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| 41 | #define HGSMI_MA_DESC_ORDER_BASE UINT32_C(5)
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| 42 |
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| 43 | #define HGSMI_MA_BLOCK_SIZE_MIN (UINT32_C(1) << (HGSMI_MA_DESC_ORDER_BASE + 0))
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| 44 |
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| 45 | typedef struct HGSMIMADATA
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| 46 | {
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| 47 | HGSMIAREA area;
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| 48 | bool fAllocated;
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| 49 | } HGSMIMADATA;
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| 50 |
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| 51 | RT_C_DECLS_BEGIN
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| 52 |
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| 53 | int HGSMIMAInit(HGSMIMADATA *pMA, const HGSMIAREA *pArea,
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| 54 | HGSMIOFFSET *paDescriptors, uint32_t cDescriptors,
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| 55 | HGSMISIZE cbMaxBlock, const HGSMIENV *pEnv);
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| 56 | void HGSMIMAUninit(HGSMIMADATA *pMA);
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| 57 |
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| 58 | void RT_UNTRUSTED_VOLATILE_GUEST *HGSMIMAAlloc(HGSMIMADATA *pMA, HGSMISIZE cb);
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| 59 | void HGSMIMAFree(HGSMIMADATA *pMA, void RT_UNTRUSTED_VOLATILE_GUEST *pv);
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| 60 |
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| 61 | RT_C_DECLS_END
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| 62 |
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| 63 | #endif /* !VBOX_INCLUDED_Graphics_HGSMIMemAlloc_h */
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