1 | /* $Id: VBoxDispVHWA.cpp 93115 2022-01-01 11:31:46Z vboxsync $ */
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2 | /** @file
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3 | * VBox XPDM Display driver
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4 | */
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5 |
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6 | /*
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7 | * Copyright (C) 2011-2022 Oracle Corporation
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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 | #include "VBoxDisp.h"
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19 | #include "VBoxDispMini.h"
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20 | #include <iprt/asm.h>
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21 | #include <iprt/asm-amd64-x86.h>
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22 |
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23 | static void VBoxDispVHWACommandFree(PVBOXDISPDEV pDev, VBOXVHWACMD RT_UNTRUSTED_VOLATILE_HOST *pCmd)
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24 | {
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25 | VBoxHGSMIBufferFree(&pDev->hgsmi.ctx, pCmd);
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26 | }
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27 |
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28 | static void VBoxDispVHWACommandRetain(VBOXVHWACMD RT_UNTRUSTED_VOLATILE_HOST *pCmd)
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29 | {
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30 | ASMAtomicIncU32(&pCmd->cRefs);
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31 | }
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32 |
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33 | static void VBoxDispVHWACommandSubmitAsynchByEvent(PVBOXDISPDEV pDev, VBOXVHWACMD RT_UNTRUSTED_VOLATILE_HOST *pCmd,
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34 | VBOXPEVENT pEvent)
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35 | {
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36 | pCmd->GuestVBVAReserved1 = (uintptr_t)pEvent;
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37 | pCmd->GuestVBVAReserved2 = 0;
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38 | /* ensure the command is not removed until we're processing it */
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39 | VBoxDispVHWACommandRetain(pCmd);
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40 |
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41 | /* complete it asynchronously by setting event */
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42 | pCmd->Flags |= VBOXVHWACMD_FLAG_GH_ASYNCH_EVENT;
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43 | VBoxHGSMIBufferSubmit(&pDev->hgsmi.ctx, pCmd);
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44 |
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45 | if(!(ASMAtomicReadU32((volatile uint32_t *)&pCmd->Flags) & VBOXVHWACMD_FLAG_HG_ASYNCH))
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46 | {
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47 | /* the command is completed */
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48 | pDev->vpAPI.VideoPortProcs.pfnSetEvent(pDev->vpAPI.pContext, pEvent);
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49 | }
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50 |
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51 | VBoxDispVHWACommandRelease(pDev, pCmd);
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52 | }
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53 |
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54 | static void VBoxDispVHWAHanldeVHWACmdCompletion(PVBOXDISPDEV pDev, VBVAHOSTCMD RT_UNTRUSTED_VOLATILE_HOST *pHostCmd)
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55 | {
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56 | VBVAHOSTCMDVHWACMDCOMPLETE RT_UNTRUSTED_VOLATILE_HOST *pComplete = VBVAHOSTCMD_BODY(pHostCmd, VBVAHOSTCMDVHWACMDCOMPLETE);
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57 | VBOXVHWACMD RT_UNTRUSTED_VOLATILE_HOST *pComplCmd =
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58 | (VBOXVHWACMD RT_UNTRUSTED_VOLATILE_HOST *)HGSMIOffsetToPointer(&pDev->hgsmi.ctx.heapCtx.area, pComplete->offCmd);
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59 |
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60 | PFNVBOXVHWACMDCOMPLETION pfnCompletion = (PFNVBOXVHWACMDCOMPLETION)(uintptr_t)pComplCmd->GuestVBVAReserved1;
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61 | void *pContext = (void *)(uintptr_t)pComplCmd->GuestVBVAReserved2;
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62 |
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63 | pfnCompletion(pDev, pComplCmd, pContext);
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64 |
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65 | VBoxDispVBVAHostCommandComplete(pDev, pHostCmd);
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66 | }
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67 |
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68 | static void VBoxVHWAHostCommandHandler(PVBOXDISPDEV pDev, VBVAHOSTCMD RT_UNTRUSTED_VOLATILE_HOST *pCmd)
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69 | {
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70 | switch (pCmd->customOpCode)
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71 | {
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72 | case VBVAHG_DCUSTOM_VHWA_CMDCOMPLETE:
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73 | VBoxDispVHWAHanldeVHWACmdCompletion(pDev, pCmd);
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74 | break;
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75 |
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76 | default:
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77 | VBoxDispVBVAHostCommandComplete(pDev, pCmd);
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78 | }
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79 | }
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80 |
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81 | void VBoxDispVHWAInit(PVBOXDISPDEV pDev)
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82 | {
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83 | VHWAQUERYINFO info;
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84 | int rc;
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85 |
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86 | rc = VBoxDispMPVHWAQueryInfo(pDev->hDriver, &info);
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87 | VBOX_WARNRC(rc);
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88 |
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89 | if (RT_SUCCESS(rc))
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90 | {
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91 | pDev->vhwa.offVramBase = info.offVramBase;
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92 | }
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93 | }
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94 |
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95 | int VBoxDispVHWAEnable(PVBOXDISPDEV pDev)
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96 | {
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97 | int rc = VERR_GENERAL_FAILURE;
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98 |
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99 | if (!pDev->hgsmi.bSupported)
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100 | {
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101 | return VERR_NOT_SUPPORTED;
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102 | }
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103 |
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104 | VBOXVHWACMD RT_UNTRUSTED_VOLATILE_HOST *pCmd = VBoxDispVHWACommandCreate(pDev, VBOXVHWACMD_TYPE_ENABLE, 0);
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105 | if (!pCmd)
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106 | {
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107 | WARN(("VBoxDispVHWACommandCreate failed"));
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108 | return rc;
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109 | }
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110 |
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111 | if (VBoxDispVHWACommandSubmit(pDev, pCmd))
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112 | if (RT_SUCCESS(pCmd->rc))
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113 | rc = VINF_SUCCESS;
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114 |
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115 | VBoxDispVHWACommandRelease(pDev, pCmd);
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116 | return rc;
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117 | }
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118 |
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119 | VBOXVHWACMD RT_UNTRUSTED_VOLATILE_HOST *
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120 | VBoxDispVHWACommandCreate(PVBOXDISPDEV pDev, VBOXVHWACMD_TYPE enmCmd, VBOXVHWACMD_LENGTH cbCmd)
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121 | {
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122 | uint32_t cbTotal = cbCmd + VBOXVHWACMD_HEADSIZE();
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123 | VBOXVHWACMD RT_UNTRUSTED_VOLATILE_HOST *pHdr
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124 | = (VBOXVHWACMD RT_UNTRUSTED_VOLATILE_HOST *)VBoxHGSMIBufferAlloc(&pDev->hgsmi.ctx, cbTotal, HGSMI_CH_VBVA, VBVA_VHWA_CMD);
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125 | if (!pHdr)
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126 | {
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127 | WARN(("HGSMIHeapAlloc failed"));
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128 | }
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129 | else
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130 | {
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131 | memset((void *)pHdr, 0, cbTotal); /* always clear the whole body so caller doesn't need to */
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132 | pHdr->iDisplay = pDev->iDevice;
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133 | pHdr->rc = VERR_GENERAL_FAILURE;
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134 | pHdr->enmCmd = enmCmd;
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135 | pHdr->cRefs = 1;
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136 | }
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137 |
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138 | /** @todo temporary hack */
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139 | VBoxDispVHWACommandCheckHostCmds(pDev);
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140 |
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141 | return pHdr;
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142 | }
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143 |
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144 | void VBoxDispVHWACommandRelease(PVBOXDISPDEV pDev, VBOXVHWACMD RT_UNTRUSTED_VOLATILE_HOST *pCmd)
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145 | {
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146 | uint32_t cRefs = ASMAtomicDecU32(&pCmd->cRefs);
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147 | Assert(cRefs < UINT32_MAX / 2);
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148 | if (!cRefs)
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149 | VBoxDispVHWACommandFree(pDev, pCmd);
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150 | }
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151 |
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152 | BOOL VBoxDispVHWACommandSubmit(PVBOXDISPDEV pDev, VBOXVHWACMD RT_UNTRUSTED_VOLATILE_HOST *pCmd)
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153 | {
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154 | VBOXPEVENT pEvent;
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155 | VBOXVP_STATUS rc = pDev->vpAPI.VideoPortProcs.pfnCreateEvent(pDev->vpAPI.pContext, VBOXNOTIFICATION_EVENT, NULL, &pEvent);
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156 | /* don't assert here, otherwise NT4 will be unhappy */
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157 | if(rc == VBOXNO_ERROR)
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158 | {
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159 | pCmd->Flags |= VBOXVHWACMD_FLAG_GH_ASYNCH_IRQ;
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160 | VBoxDispVHWACommandSubmitAsynchByEvent(pDev, pCmd, pEvent);
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161 |
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162 | rc = pDev->vpAPI.VideoPortProcs.pfnWaitForSingleObject(pDev->vpAPI.pContext, pEvent,
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163 | NULL /*IN PLARGE_INTEGER pTimeOut*/
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164 | );
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165 | Assert(rc == VBOXNO_ERROR);
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166 | if(rc == VBOXNO_ERROR)
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167 | {
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168 | pDev->vpAPI.VideoPortProcs.pfnDeleteEvent(pDev->vpAPI.pContext, pEvent);
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169 | }
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170 | }
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171 | return rc == VBOXNO_ERROR;
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172 | }
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173 |
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174 | void VBoxDispVHWACommandCheckHostCmds(PVBOXDISPDEV pDev)
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175 | {
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176 | VBVAHOSTCMD RT_UNTRUSTED_VOLATILE_HOST *pCmd;
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177 | int rc = pDev->hgsmi.mp.pfnRequestCommandsHandler(pDev->hgsmi.mp.hContext, HGSMI_CH_VBVA, pDev->iDevice, &pCmd);
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178 | /* don't assert here, otherwise NT4 will be unhappy */
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179 | if (RT_SUCCESS(rc))
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180 | {
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181 | while (pCmd)
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182 | {
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183 | VBVAHOSTCMD RT_UNTRUSTED_VOLATILE_HOST *pNextCmd = pCmd->u.pNext;
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184 | VBoxVHWAHostCommandHandler(pDev, pCmd);
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185 | pCmd = pNextCmd;
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186 | }
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187 | }
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188 | }
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189 |
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190 | static DECLCALLBACK(void) VBoxDispVHWACommandCompletionCallbackEvent(PVBOXDISPDEV pDev, VBOXVHWACMD * pCmd, void * pContext)
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191 | {
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192 | RT_NOREF(pCmd);
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193 | VBOXPEVENT pEvent = (VBOXPEVENT)pContext;
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194 | LONG oldState = pDev->vpAPI.VideoPortProcs.pfnSetEvent(pDev->vpAPI.pContext, pEvent);
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195 | Assert(!oldState); NOREF(oldState);
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196 | }
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197 |
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198 | /* do not wait for completion */
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199 | void VBoxDispVHWACommandSubmitAsynch(PVBOXDISPDEV pDev, VBOXVHWACMD RT_UNTRUSTED_VOLATILE_HOST *pCmd,
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200 | PFNVBOXVHWACMDCOMPLETION pfnCompletion, void * pContext)
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201 | {
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202 | pCmd->GuestVBVAReserved1 = (uintptr_t)pfnCompletion;
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203 | pCmd->GuestVBVAReserved2 = (uintptr_t)pContext;
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204 | VBoxDispVHWACommandRetain(pCmd);
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205 |
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206 | VBoxHGSMIBufferSubmit(&pDev->hgsmi.ctx, pCmd);
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207 |
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208 | if(!(pCmd->Flags & VBOXVHWACMD_FLAG_HG_ASYNCH))
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209 | {
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210 | /* the command is completed */
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211 | pfnCompletion(pDev, pCmd, pContext);
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212 | }
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213 |
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214 | VBoxDispVHWACommandRelease(pDev, pCmd);
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215 | }
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216 |
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217 | static DECLCALLBACK(void) VBoxDispVHWAFreeCmdCompletion(PVBOXDISPDEV pDev, VBOXVHWACMD RT_UNTRUSTED_VOLATILE_HOST *pCmd,
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218 | void *pvContext)
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219 | {
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220 | RT_NOREF(pvContext);
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221 | VBoxDispVHWACommandRelease(pDev, pCmd);
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222 | }
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223 |
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224 | void VBoxDispVHWACommandSubmitAsynchAndComplete (PVBOXDISPDEV pDev, VBOXVHWACMD RT_UNTRUSTED_VOLATILE_HOST *pCmd)
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225 | {
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226 | pCmd->GuestVBVAReserved1 = (uintptr_t)VBoxDispVHWAFreeCmdCompletion;
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227 |
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228 | VBoxDispVHWACommandRetain(pCmd);
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229 |
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230 | pCmd->Flags |= VBOXVHWACMD_FLAG_GH_ASYNCH_NOCOMPLETION;
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231 |
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232 | VBoxHGSMIBufferSubmit(&pDev->hgsmi.ctx, pCmd);
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233 |
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234 | uint32_t const fCmdFlags = pCmd->Flags;
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235 | if ( !(fCmdFlags & VBOXVHWACMD_FLAG_HG_ASYNCH)
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236 | || (fCmdFlags & VBOXVHWACMD_FLAG_HG_ASYNCH_RETURNED))
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237 | {
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238 | /* the command is completed */
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239 | VBoxDispVHWAFreeCmdCompletion(pDev, pCmd, NULL);
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240 | }
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241 |
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242 | VBoxDispVHWACommandRelease(pDev, pCmd);
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243 | }
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244 |
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245 | void VBoxDispVHWAFreeHostInfo1(PVBOXDISPDEV pDev, VBOXVHWACMD_QUERYINFO1 RT_UNTRUSTED_VOLATILE_HOST *pInfo)
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246 | {
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247 | VBOXVHWACMD RT_UNTRUSTED_VOLATILE_HOST *pCmd = VBOXVHWACMD_HEAD(pInfo);
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248 | VBoxDispVHWACommandRelease(pDev, pCmd);
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249 | }
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250 |
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251 | void VBoxDispVHWAFreeHostInfo2(PVBOXDISPDEV pDev, VBOXVHWACMD_QUERYINFO2 RT_UNTRUSTED_VOLATILE_HOST *pInfo)
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252 | {
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253 | VBOXVHWACMD RT_UNTRUSTED_VOLATILE_HOST *pCmd = VBOXVHWACMD_HEAD(pInfo);
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254 | VBoxDispVHWACommandRelease(pDev, pCmd);
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255 | }
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256 |
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257 | static VBOXVHWACMD_QUERYINFO1 RT_UNTRUSTED_VOLATILE_HOST *VBoxDispVHWAQueryHostInfo1(PVBOXDISPDEV pDev)
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258 | {
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259 | VBOXVHWACMD RT_UNTRUSTED_VOLATILE_HOST *pCmd = VBoxDispVHWACommandCreate(pDev, VBOXVHWACMD_TYPE_QUERY_INFO1,
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260 | sizeof(VBOXVHWACMD_QUERYINFO1));
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261 | if (!pCmd)
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262 | {
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263 | WARN(("VBoxDispVHWACommandCreate failed"));
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264 | return NULL;
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265 | }
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266 |
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267 | VBOXVHWACMD_QUERYINFO1 RT_UNTRUSTED_VOLATILE_HOST *pInfo1= VBOXVHWACMD_BODY(pCmd, VBOXVHWACMD_QUERYINFO1);
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268 | pInfo1->u.in.guestVersion.maj = VBOXVHWA_VERSION_MAJ;
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269 | pInfo1->u.in.guestVersion.min = VBOXVHWA_VERSION_MIN;
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270 | pInfo1->u.in.guestVersion.bld = VBOXVHWA_VERSION_BLD;
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271 | pInfo1->u.in.guestVersion.reserved = VBOXVHWA_VERSION_RSV;
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272 |
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273 | if(VBoxDispVHWACommandSubmit (pDev, pCmd))
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274 | {
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275 | if(RT_SUCCESS(pCmd->rc))
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276 | {
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277 | return VBOXVHWACMD_BODY(pCmd, VBOXVHWACMD_QUERYINFO1);
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278 | }
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279 | }
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280 |
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281 | VBoxDispVHWACommandRelease(pDev, pCmd);
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282 | return NULL;
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283 | }
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284 |
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285 | static VBOXVHWACMD_QUERYINFO2 RT_UNTRUSTED_VOLATILE_HOST *VBoxDispVHWAQueryHostInfo2(PVBOXDISPDEV pDev, uint32_t numFourCC)
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286 | {
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287 | VBOXVHWACMD RT_UNTRUSTED_VOLATILE_HOST *pCmd = VBoxDispVHWACommandCreate(pDev, VBOXVHWACMD_TYPE_QUERY_INFO2,
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288 | VBOXVHWAINFO2_SIZE(numFourCC));
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289 | if (!pCmd)
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290 | {
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291 | WARN(("VBoxDispVHWACommandCreate failed"));
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292 | return NULL;
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293 | }
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294 |
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295 | VBOXVHWACMD_QUERYINFO2 RT_UNTRUSTED_VOLATILE_HOST *pInfo2 = VBOXVHWACMD_BODY(pCmd, VBOXVHWACMD_QUERYINFO2);
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296 | pInfo2->numFourCC = numFourCC;
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297 | if (VBoxDispVHWACommandSubmit(pDev, pCmd))
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298 | if (RT_SUCCESS(pCmd->rc))
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299 | if (pInfo2->numFourCC == numFourCC)
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300 | return pInfo2;
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301 |
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302 | VBoxDispVHWACommandRelease(pDev, pCmd);
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303 | return NULL;
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304 | }
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305 |
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306 | int VBoxDispVHWAInitHostInfo1(PVBOXDISPDEV pDev)
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307 | {
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308 |
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309 | if (!pDev->hgsmi.bSupported)
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310 | return VERR_NOT_SUPPORTED;
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311 |
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312 | VBOXVHWACMD_QUERYINFO1 RT_UNTRUSTED_VOLATILE_HOST *pInfo = VBoxDispVHWAQueryHostInfo1(pDev);
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313 | if(!pInfo)
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314 | {
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315 | pDev->vhwa.bEnabled = false;
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316 | return VERR_OUT_OF_RESOURCES;
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317 | }
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318 |
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319 | pDev->vhwa.caps = pInfo->u.out.caps;
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320 | pDev->vhwa.caps2 = pInfo->u.out.caps2;
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321 | pDev->vhwa.colorKeyCaps = pInfo->u.out.colorKeyCaps;
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322 | pDev->vhwa.stretchCaps = pInfo->u.out.stretchCaps;
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323 | pDev->vhwa.surfaceCaps = pInfo->u.out.surfaceCaps;
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324 | pDev->vhwa.numOverlays = pInfo->u.out.numOverlays;
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325 | pDev->vhwa.numFourCC = pInfo->u.out.numFourCC;
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326 | pDev->vhwa.bEnabled = (pInfo->u.out.cfgFlags & VBOXVHWA_CFG_ENABLED);
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327 |
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328 | VBoxDispVHWAFreeHostInfo1(pDev, pInfo);
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329 | return VINF_SUCCESS;
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330 | }
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331 |
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332 | int VBoxDispVHWAInitHostInfo2(PVBOXDISPDEV pDev, DWORD *pFourCC)
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333 | {
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334 | int rc = VINF_SUCCESS;
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335 |
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336 | if (!pDev->hgsmi.bSupported)
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337 | return VERR_NOT_SUPPORTED;
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338 |
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339 | VBOXVHWACMD_QUERYINFO2 RT_UNTRUSTED_VOLATILE_HOST *pInfo = VBoxDispVHWAQueryHostInfo2(pDev, pDev->vhwa.numFourCC);
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340 | Assert(pInfo);
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341 | if(!pInfo)
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342 | return VERR_OUT_OF_RESOURCES;
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343 |
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344 | if (pDev->vhwa.numFourCC)
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345 | memcpy(pFourCC, (void const *)pInfo->FourCC, pDev->vhwa.numFourCC * sizeof(pFourCC[0]));
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346 | else
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347 | {
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348 | Assert(0);
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349 | rc = VERR_GENERAL_FAILURE;
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350 | }
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351 |
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352 | VBoxDispVHWAFreeHostInfo2(pDev, pInfo);
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353 |
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354 | return rc;
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355 | }
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356 |
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357 | int VBoxDispVHWADisable(PVBOXDISPDEV pDev)
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358 | {
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359 | int rc = VERR_GENERAL_FAILURE;
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360 |
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361 | if (!pDev->hgsmi.bSupported)
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362 | return VERR_NOT_SUPPORTED;
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363 |
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364 | VBOXVHWACMD RT_UNTRUSTED_VOLATILE_HOST *pCmd = VBoxDispVHWACommandCreate(pDev, VBOXVHWACMD_TYPE_DISABLE, 0);
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365 | if (!pCmd)
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366 | {
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367 | WARN(("VBoxDispVHWACommandCreate failed"));
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368 | return rc;
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369 | }
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370 |
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371 | if (VBoxDispVHWACommandSubmit(pDev, pCmd))
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372 | if(RT_SUCCESS(pCmd->rc))
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373 | rc = VINF_SUCCESS;
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374 |
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375 | VBoxDispVHWACommandRelease(pDev, pCmd);
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376 |
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377 | VBoxDispVHWACommandCheckHostCmds(pDev);
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378 |
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379 | return rc;
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380 | }
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381 |
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382 | #define MEMTAG 'AWHV'
|
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383 | PVBOXVHWASURFDESC VBoxDispVHWASurfDescAlloc()
|
---|
384 | {
|
---|
385 | return (PVBOXVHWASURFDESC) EngAllocMem(FL_NONPAGED_MEMORY | FL_ZERO_MEMORY, sizeof(VBOXVHWASURFDESC), MEMTAG);
|
---|
386 | }
|
---|
387 |
|
---|
388 | void VBoxDispVHWASurfDescFree(PVBOXVHWASURFDESC pDesc)
|
---|
389 | {
|
---|
390 | EngFreeMem(pDesc);
|
---|
391 | }
|
---|
392 |
|
---|
393 | uint64_t VBoxDispVHWAVramOffsetFromPDEV(PVBOXDISPDEV pDev, ULONG_PTR offPdev)
|
---|
394 | {
|
---|
395 | return (uint64_t)(pDev->vhwa.offVramBase + offPdev);
|
---|
396 | }
|
---|
397 |
|
---|
398 | #define VBOX_DD(_f) DD##_f
|
---|
399 | #define VBOX_VHWA(_f) VBOXVHWA_##_f
|
---|
400 | #define VBOX_DD2VHWA(_out, _in, _f) do {if((_in) & VBOX_DD(_f)) _out |= VBOX_VHWA(_f); }while(0)
|
---|
401 | #define VBOX_DD_VHWA_PAIR(_v) {VBOX_DD(_v), VBOX_VHWA(_v)}
|
---|
402 | #define VBOX_DD_DUMMY_PAIR(_v) {VBOX_DD(_v), 0}
|
---|
403 |
|
---|
404 | #define VBOXVHWA_SUPPORTED_CAPS ( \
|
---|
405 | VBOXVHWA_CAPS_BLT \
|
---|
406 | | VBOXVHWA_CAPS_BLTCOLORFILL \
|
---|
407 | | VBOXVHWA_CAPS_BLTFOURCC \
|
---|
408 | | VBOXVHWA_CAPS_BLTSTRETCH \
|
---|
409 | | VBOXVHWA_CAPS_BLTQUEUE \
|
---|
410 | | VBOXVHWA_CAPS_OVERLAY \
|
---|
411 | | VBOXVHWA_CAPS_OVERLAYFOURCC \
|
---|
412 | | VBOXVHWA_CAPS_OVERLAYSTRETCH \
|
---|
413 | | VBOXVHWA_CAPS_OVERLAYCANTCLIP \
|
---|
414 | | VBOXVHWA_CAPS_COLORKEY \
|
---|
415 | | VBOXVHWA_CAPS_COLORKEYHWASSIST \
|
---|
416 | )
|
---|
417 |
|
---|
418 | #define VBOXVHWA_SUPPORTED_SCAPS ( \
|
---|
419 | VBOXVHWA_SCAPS_BACKBUFFER \
|
---|
420 | | VBOXVHWA_SCAPS_COMPLEX \
|
---|
421 | | VBOXVHWA_SCAPS_FLIP \
|
---|
422 | | VBOXVHWA_SCAPS_FRONTBUFFER \
|
---|
423 | | VBOXVHWA_SCAPS_OFFSCREENPLAIN \
|
---|
424 | | VBOXVHWA_SCAPS_OVERLAY \
|
---|
425 | | VBOXVHWA_SCAPS_PRIMARYSURFACE \
|
---|
426 | | VBOXVHWA_SCAPS_SYSTEMMEMORY \
|
---|
427 | | VBOXVHWA_SCAPS_VIDEOMEMORY \
|
---|
428 | | VBOXVHWA_SCAPS_VISIBLE \
|
---|
429 | | VBOXVHWA_SCAPS_LOCALVIDMEM \
|
---|
430 | )
|
---|
431 |
|
---|
432 | #define VBOXVHWA_SUPPORTED_SCAPS2 ( \
|
---|
433 | VBOXVHWA_CAPS2_CANRENDERWINDOWED \
|
---|
434 | | VBOXVHWA_CAPS2_WIDESURFACES \
|
---|
435 | | VBOXVHWA_CAPS2_COPYFOURCC \
|
---|
436 | )
|
---|
437 |
|
---|
438 | #define VBOXVHWA_SUPPORTED_PF ( \
|
---|
439 | VBOXVHWA_PF_PALETTEINDEXED8 \
|
---|
440 | | VBOXVHWA_PF_RGB \
|
---|
441 | | VBOXVHWA_PF_RGBTOYUV \
|
---|
442 | | VBOXVHWA_PF_YUV \
|
---|
443 | | VBOXVHWA_PF_FOURCC \
|
---|
444 | )
|
---|
445 |
|
---|
446 | #define VBOXVHWA_SUPPORTED_SD ( \
|
---|
447 | VBOXVHWA_SD_BACKBUFFERCOUNT \
|
---|
448 | | VBOXVHWA_SD_CAPS \
|
---|
449 | | VBOXVHWA_SD_CKDESTBLT \
|
---|
450 | | VBOXVHWA_SD_CKDESTOVERLAY \
|
---|
451 | | VBOXVHWA_SD_CKSRCBLT \
|
---|
452 | | VBOXVHWA_SD_CKSRCOVERLAY \
|
---|
453 | | VBOXVHWA_SD_HEIGHT \
|
---|
454 | | VBOXVHWA_SD_PITCH \
|
---|
455 | | VBOXVHWA_SD_PIXELFORMAT \
|
---|
456 | | VBOXVHWA_SD_WIDTH \
|
---|
457 | )
|
---|
458 |
|
---|
459 | #define VBOXVHWA_SUPPORTED_CKEYCAPS ( \
|
---|
460 | VBOXVHWA_CKEYCAPS_DESTBLT \
|
---|
461 | | VBOXVHWA_CKEYCAPS_DESTBLTCLRSPACE \
|
---|
462 | | VBOXVHWA_CKEYCAPS_DESTBLTCLRSPACEYUV \
|
---|
463 | | VBOXVHWA_CKEYCAPS_DESTBLTYUV \
|
---|
464 | | VBOXVHWA_CKEYCAPS_DESTOVERLAY \
|
---|
465 | | VBOXVHWA_CKEYCAPS_DESTOVERLAYCLRSPACE \
|
---|
466 | | VBOXVHWA_CKEYCAPS_DESTOVERLAYCLRSPACEYUV \
|
---|
467 | | VBOXVHWA_CKEYCAPS_DESTOVERLAYONEACTIVE \
|
---|
468 | | VBOXVHWA_CKEYCAPS_DESTOVERLAYYUV \
|
---|
469 | | VBOXVHWA_CKEYCAPS_SRCBLT \
|
---|
470 | | VBOXVHWA_CKEYCAPS_SRCBLTCLRSPACE \
|
---|
471 | | VBOXVHWA_CKEYCAPS_SRCBLTCLRSPACEYUV \
|
---|
472 | | VBOXVHWA_CKEYCAPS_SRCBLTYUV \
|
---|
473 | | VBOXVHWA_CKEYCAPS_SRCOVERLAY \
|
---|
474 | | VBOXVHWA_CKEYCAPS_SRCOVERLAYCLRSPACE \
|
---|
475 | | VBOXVHWA_CKEYCAPS_SRCOVERLAYCLRSPACEYUV \
|
---|
476 | | VBOXVHWA_CKEYCAPS_SRCOVERLAYONEACTIVE \
|
---|
477 | | VBOXVHWA_CKEYCAPS_SRCOVERLAYYUV \
|
---|
478 | | VBOXVHWA_CKEYCAPS_NOCOSTOVERLAY \
|
---|
479 | )
|
---|
480 |
|
---|
481 | #define VBOXVHWA_SUPPORTED_CKEY ( \
|
---|
482 | VBOXVHWA_CKEY_COLORSPACE \
|
---|
483 | | VBOXVHWA_CKEY_DESTBLT \
|
---|
484 | | VBOXVHWA_CKEY_DESTOVERLAY \
|
---|
485 | | VBOXVHWA_CKEY_SRCBLT \
|
---|
486 | | VBOXVHWA_CKEY_SRCOVERLAY \
|
---|
487 | )
|
---|
488 |
|
---|
489 | #define VBOXVHWA_SUPPORTED_OVER ( \
|
---|
490 | VBOXVHWA_OVER_DDFX \
|
---|
491 | | VBOXVHWA_OVER_HIDE \
|
---|
492 | | VBOXVHWA_OVER_KEYDEST \
|
---|
493 | | VBOXVHWA_OVER_KEYDESTOVERRIDE \
|
---|
494 | | VBOXVHWA_OVER_KEYSRC \
|
---|
495 | | VBOXVHWA_OVER_KEYSRCOVERRIDE \
|
---|
496 | | VBOXVHWA_OVER_SHOW \
|
---|
497 | )
|
---|
498 |
|
---|
499 | uint32_t VBoxDispVHWAUnsupportedDDCAPS(uint32_t caps)
|
---|
500 | {
|
---|
501 | return caps & (~VBOXVHWA_SUPPORTED_CAPS);
|
---|
502 | }
|
---|
503 |
|
---|
504 | uint32_t VBoxDispVHWAUnsupportedDDSCAPS(uint32_t caps)
|
---|
505 | {
|
---|
506 | return caps & (~VBOXVHWA_SUPPORTED_SCAPS);
|
---|
507 | }
|
---|
508 |
|
---|
509 | uint32_t VBoxDispVHWAUnsupportedDDPFS(uint32_t caps)
|
---|
510 | {
|
---|
511 | return caps & (~VBOXVHWA_SUPPORTED_PF);
|
---|
512 | }
|
---|
513 |
|
---|
514 | uint32_t VBoxDispVHWAUnsupportedDSS(uint32_t caps)
|
---|
515 | {
|
---|
516 | return caps & (~VBOXVHWA_SUPPORTED_SD);
|
---|
517 | }
|
---|
518 |
|
---|
519 | uint32_t VBoxDispVHWAUnsupportedDDCEYCAPS(uint32_t caps)
|
---|
520 | {
|
---|
521 | return caps & (~VBOXVHWA_SUPPORTED_CKEYCAPS);
|
---|
522 | }
|
---|
523 |
|
---|
524 | uint32_t VBoxDispVHWASupportedDDCEYCAPS(uint32_t caps)
|
---|
525 | {
|
---|
526 | return caps & (VBOXVHWA_SUPPORTED_CKEYCAPS);
|
---|
527 | }
|
---|
528 |
|
---|
529 |
|
---|
530 | uint32_t VBoxDispVHWASupportedDDCAPS(uint32_t caps)
|
---|
531 | {
|
---|
532 | return caps & (VBOXVHWA_SUPPORTED_CAPS);
|
---|
533 | }
|
---|
534 |
|
---|
535 | uint32_t VBoxDispVHWASupportedDDSCAPS(uint32_t caps)
|
---|
536 | {
|
---|
537 | return caps & (VBOXVHWA_SUPPORTED_SCAPS);
|
---|
538 | }
|
---|
539 |
|
---|
540 | uint32_t VBoxDispVHWASupportedDDPFS(uint32_t caps)
|
---|
541 | {
|
---|
542 | return caps & (VBOXVHWA_SUPPORTED_PF);
|
---|
543 | }
|
---|
544 |
|
---|
545 | uint32_t VBoxDispVHWASupportedDSS(uint32_t caps)
|
---|
546 | {
|
---|
547 | return caps & (VBOXVHWA_SUPPORTED_SD);
|
---|
548 | }
|
---|
549 |
|
---|
550 | uint32_t VBoxDispVHWASupportedOVERs(uint32_t caps)
|
---|
551 | {
|
---|
552 | return caps & (VBOXVHWA_SUPPORTED_OVER);
|
---|
553 | }
|
---|
554 |
|
---|
555 | uint32_t VBoxDispVHWAUnsupportedOVERs(uint32_t caps)
|
---|
556 | {
|
---|
557 | return caps & (~VBOXVHWA_SUPPORTED_OVER);
|
---|
558 | }
|
---|
559 |
|
---|
560 | uint32_t VBoxDispVHWASupportedCKEYs(uint32_t caps)
|
---|
561 | {
|
---|
562 | return caps & (VBOXVHWA_SUPPORTED_CKEY);
|
---|
563 | }
|
---|
564 |
|
---|
565 | uint32_t VBoxDispVHWAUnsupportedCKEYs(uint32_t caps)
|
---|
566 | {
|
---|
567 | return caps & (~VBOXVHWA_SUPPORTED_CKEY);
|
---|
568 | }
|
---|
569 |
|
---|
570 | uint32_t VBoxDispVHWAFromDDOVERs(uint32_t caps) { return caps; }
|
---|
571 | uint32_t VBoxDispVHWAToDDOVERs(uint32_t caps) { return caps; }
|
---|
572 | uint32_t VBoxDispVHWAFromDDCKEYs(uint32_t caps) { return caps; }
|
---|
573 | uint32_t VBoxDispVHWAToDDCKEYs(uint32_t caps) { return caps; }
|
---|
574 |
|
---|
575 | uint32_t VBoxDispVHWAFromDDCAPS(uint32_t caps)
|
---|
576 | {
|
---|
577 | return caps;
|
---|
578 | }
|
---|
579 |
|
---|
580 | uint32_t VBoxDispVHWAToDDCAPS(uint32_t caps)
|
---|
581 | {
|
---|
582 | return caps;
|
---|
583 | }
|
---|
584 |
|
---|
585 | uint32_t VBoxDispVHWAFromDDCAPS2(uint32_t caps)
|
---|
586 | {
|
---|
587 | return caps;
|
---|
588 | }
|
---|
589 |
|
---|
590 | uint32_t VBoxDispVHWAToDDCAPS2(uint32_t caps)
|
---|
591 | {
|
---|
592 | return caps;
|
---|
593 | }
|
---|
594 |
|
---|
595 | uint32_t VBoxDispVHWAFromDDSCAPS(uint32_t caps)
|
---|
596 | {
|
---|
597 | return caps;
|
---|
598 | }
|
---|
599 |
|
---|
600 | uint32_t VBoxDispVHWAToDDSCAPS(uint32_t caps)
|
---|
601 | {
|
---|
602 | return caps;
|
---|
603 | }
|
---|
604 |
|
---|
605 | uint32_t VBoxDispVHWAFromDDPFS(uint32_t caps)
|
---|
606 | {
|
---|
607 | return caps;
|
---|
608 | }
|
---|
609 |
|
---|
610 | uint32_t VBoxDispVHWAToDDPFS(uint32_t caps)
|
---|
611 | {
|
---|
612 | return caps;
|
---|
613 | }
|
---|
614 |
|
---|
615 | uint32_t VBoxDispVHWAFromDDCKEYCAPS(uint32_t caps)
|
---|
616 | {
|
---|
617 | return caps;
|
---|
618 | }
|
---|
619 |
|
---|
620 | uint32_t VBoxDispVHWAToDDCKEYCAPS(uint32_t caps)
|
---|
621 | {
|
---|
622 | return caps;
|
---|
623 | }
|
---|
624 |
|
---|
625 | uint32_t VBoxDispVHWAToDDBLTs(uint32_t caps)
|
---|
626 | {
|
---|
627 | return caps;
|
---|
628 | }
|
---|
629 |
|
---|
630 | uint32_t VBoxDispVHWAFromDDBLTs(uint32_t caps)
|
---|
631 | {
|
---|
632 | return caps;
|
---|
633 | }
|
---|
634 |
|
---|
635 | void VBoxDispVHWAFromDDCOLORKEY(VBOXVHWA_COLORKEY RT_UNTRUSTED_VOLATILE_HOST *pVHWACKey, DDCOLORKEY *pDdCKey)
|
---|
636 | {
|
---|
637 | pVHWACKey->low = pDdCKey->dwColorSpaceLowValue;
|
---|
638 | pVHWACKey->high = pDdCKey->dwColorSpaceHighValue;
|
---|
639 | }
|
---|
640 |
|
---|
641 | void VBoxDispVHWAFromDDOVERLAYFX(VBOXVHWA_OVERLAYFX RT_UNTRUSTED_VOLATILE_HOST *pVHWAOverlay, DDOVERLAYFX *pDdOverlay)
|
---|
642 | {
|
---|
643 | /// @todo fxFlags
|
---|
644 | VBoxDispVHWAFromDDCOLORKEY(&pVHWAOverlay->DstCK, &pDdOverlay->dckDestColorkey);
|
---|
645 | VBoxDispVHWAFromDDCOLORKEY(&pVHWAOverlay->SrcCK, &pDdOverlay->dckSrcColorkey);
|
---|
646 | }
|
---|
647 |
|
---|
648 | void VBoxDispVHWAFromDDBLTFX(VBOXVHWA_BLTFX RT_UNTRUSTED_VOLATILE_HOST *pVHWABlt, DDBLTFX *pDdBlt)
|
---|
649 | {
|
---|
650 | pVHWABlt->fillColor = pDdBlt->dwFillColor;
|
---|
651 |
|
---|
652 | VBoxDispVHWAFromDDCOLORKEY(&pVHWABlt->DstCK, &pDdBlt->ddckDestColorkey);
|
---|
653 | VBoxDispVHWAFromDDCOLORKEY(&pVHWABlt->SrcCK, &pDdBlt->ddckSrcColorkey);
|
---|
654 | }
|
---|
655 |
|
---|
656 | int VBoxDispVHWAFromDDPIXELFORMAT(VBOXVHWA_PIXELFORMAT RT_UNTRUSTED_VOLATILE_HOST *pVHWAFormat, DDPIXELFORMAT *pDdFormat)
|
---|
657 | {
|
---|
658 | uint32_t unsup = VBoxDispVHWAUnsupportedDDPFS(pDdFormat->dwFlags);
|
---|
659 | Assert(!unsup);
|
---|
660 | if(unsup)
|
---|
661 | return VERR_GENERAL_FAILURE;
|
---|
662 |
|
---|
663 | pVHWAFormat->flags = VBoxDispVHWAFromDDPFS(pDdFormat->dwFlags);
|
---|
664 | pVHWAFormat->fourCC = pDdFormat->dwFourCC;
|
---|
665 | pVHWAFormat->c.rgbBitCount = pDdFormat->dwRGBBitCount;
|
---|
666 | pVHWAFormat->m1.rgbRBitMask = pDdFormat->dwRBitMask;
|
---|
667 | pVHWAFormat->m2.rgbGBitMask = pDdFormat->dwGBitMask;
|
---|
668 | pVHWAFormat->m3.rgbBBitMask = pDdFormat->dwBBitMask;
|
---|
669 | return VINF_SUCCESS;
|
---|
670 | }
|
---|
671 |
|
---|
672 | int VBoxDispVHWAFromDDSURFACEDESC(VBOXVHWA_SURFACEDESC RT_UNTRUSTED_VOLATILE_HOST *pVHWADesc, DDSURFACEDESC *pDdDesc)
|
---|
673 | {
|
---|
674 | uint32_t unsupds = VBoxDispVHWAUnsupportedDSS(pDdDesc->dwFlags);
|
---|
675 | Assert(!unsupds);
|
---|
676 | if(unsupds)
|
---|
677 | return VERR_GENERAL_FAILURE;
|
---|
678 |
|
---|
679 | pVHWADesc->flags = 0;
|
---|
680 |
|
---|
681 | if(pDdDesc->dwFlags & DDSD_BACKBUFFERCOUNT)
|
---|
682 | {
|
---|
683 | pVHWADesc->flags |= VBOXVHWA_SD_BACKBUFFERCOUNT;
|
---|
684 | pVHWADesc->cBackBuffers = pDdDesc->dwBackBufferCount;
|
---|
685 | }
|
---|
686 | if(pDdDesc->dwFlags & DDSD_CAPS)
|
---|
687 | {
|
---|
688 | uint32_t unsup = VBoxDispVHWAUnsupportedDDSCAPS(pDdDesc->ddsCaps.dwCaps);
|
---|
689 | Assert(!unsup);
|
---|
690 | if(unsup)
|
---|
691 | return VERR_GENERAL_FAILURE;
|
---|
692 | pVHWADesc->flags |= VBOXVHWA_SD_CAPS;
|
---|
693 | pVHWADesc->surfCaps = VBoxDispVHWAFromDDSCAPS(pDdDesc->ddsCaps.dwCaps);
|
---|
694 | }
|
---|
695 | if(pDdDesc->dwFlags & DDSD_CKDESTBLT)
|
---|
696 | {
|
---|
697 | pVHWADesc->flags |= VBOXVHWA_SD_CKDESTBLT;
|
---|
698 | VBoxDispVHWAFromDDCOLORKEY(&pVHWADesc->DstBltCK, &pDdDesc->ddckCKDestBlt);
|
---|
699 | }
|
---|
700 | if(pDdDesc->dwFlags & DDSD_CKDESTOVERLAY)
|
---|
701 | {
|
---|
702 | pVHWADesc->flags |= VBOXVHWA_SD_CKDESTOVERLAY;
|
---|
703 | VBoxDispVHWAFromDDCOLORKEY(&pVHWADesc->DstOverlayCK, &pDdDesc->ddckCKDestOverlay);
|
---|
704 | }
|
---|
705 | if(pDdDesc->dwFlags & DDSD_CKSRCBLT)
|
---|
706 | {
|
---|
707 | pVHWADesc->flags |= VBOXVHWA_SD_CKSRCBLT;
|
---|
708 | VBoxDispVHWAFromDDCOLORKEY(&pVHWADesc->SrcBltCK, &pDdDesc->ddckCKSrcBlt);
|
---|
709 | }
|
---|
710 | if(pDdDesc->dwFlags & DDSD_CKSRCOVERLAY)
|
---|
711 | {
|
---|
712 | pVHWADesc->flags |= VBOXVHWA_SD_CKSRCOVERLAY;
|
---|
713 | VBoxDispVHWAFromDDCOLORKEY(&pVHWADesc->SrcOverlayCK, &pDdDesc->ddckCKSrcOverlay);
|
---|
714 | }
|
---|
715 | if(pDdDesc->dwFlags & DDSD_HEIGHT)
|
---|
716 | {
|
---|
717 | pVHWADesc->flags |= VBOXVHWA_SD_HEIGHT;
|
---|
718 | pVHWADesc->height = pDdDesc->dwHeight;
|
---|
719 | }
|
---|
720 | if(pDdDesc->dwFlags & DDSD_WIDTH)
|
---|
721 | {
|
---|
722 | pVHWADesc->flags |= VBOXVHWA_SD_WIDTH;
|
---|
723 | pVHWADesc->width = pDdDesc->dwWidth;
|
---|
724 | }
|
---|
725 | if(pDdDesc->dwFlags & DDSD_PITCH)
|
---|
726 | {
|
---|
727 | pVHWADesc->flags |= VBOXVHWA_SD_PITCH;
|
---|
728 | pVHWADesc->pitch = pDdDesc->lPitch;
|
---|
729 | }
|
---|
730 | if(pDdDesc->dwFlags & DDSD_PIXELFORMAT)
|
---|
731 | {
|
---|
732 | int rc = VBoxDispVHWAFromDDPIXELFORMAT(&pVHWADesc->PixelFormat, &pDdDesc->ddpfPixelFormat);
|
---|
733 | if(RT_FAILURE(rc))
|
---|
734 | return rc;
|
---|
735 | pVHWADesc->flags |= VBOXVHWA_SD_PIXELFORMAT;
|
---|
736 | }
|
---|
737 | return VINF_SUCCESS;
|
---|
738 | }
|
---|
739 |
|
---|
740 | void VBoxDispVHWAFromRECTL(VBOXVHWA_RECTL *pDst, RECTL const *pSrc)
|
---|
741 | {
|
---|
742 | pDst->left = pSrc->left;
|
---|
743 | pDst->top = pSrc->top;
|
---|
744 | pDst->right = pSrc->right;
|
---|
745 | pDst->bottom = pSrc->bottom;
|
---|
746 | }
|
---|
747 |
|
---|
748 | void VBoxDispVHWAFromRECTL(VBOXVHWA_RECTL RT_UNTRUSTED_VOLATILE_HOST *pDst, RECTL const *pSrc)
|
---|
749 | {
|
---|
750 | pDst->left = pSrc->left;
|
---|
751 | pDst->top = pSrc->top;
|
---|
752 | pDst->right = pSrc->right;
|
---|
753 | pDst->bottom = pSrc->bottom;
|
---|
754 | }
|
---|
755 |
|
---|
756 | #define MIN(_a, _b) (_a) < (_b) ? (_a) : (_b)
|
---|
757 | #define MAX(_a, _b) (_a) > (_b) ? (_a) : (_b)
|
---|
758 |
|
---|
759 | void VBoxDispVHWARectUnited(RECTL * pDst, RECTL * pRect1, RECTL * pRect2)
|
---|
760 | {
|
---|
761 | pDst->left = MIN(pRect1->left, pRect2->left);
|
---|
762 | pDst->top = MIN(pRect1->top, pRect2->top);
|
---|
763 | pDst->right = MAX(pRect1->right, pRect2->right);
|
---|
764 | pDst->bottom = MAX(pRect1->bottom, pRect2->bottom);
|
---|
765 | }
|
---|
766 |
|
---|
767 | bool VBoxDispVHWARectIsEmpty(RECTL * pRect)
|
---|
768 | {
|
---|
769 | return pRect->left == pRect->right-1 && pRect->top == pRect->bottom-1;
|
---|
770 | }
|
---|
771 |
|
---|
772 | bool VBoxDispVHWARectIntersect(RECTL * pRect1, RECTL * pRect2)
|
---|
773 | {
|
---|
774 | return !((pRect1->left < pRect2->left && pRect1->right < pRect2->left)
|
---|
775 | || (pRect2->left < pRect1->left && pRect2->right < pRect1->left)
|
---|
776 | || (pRect1->top < pRect2->top && pRect1->bottom < pRect2->top)
|
---|
777 | || (pRect2->top < pRect1->top && pRect2->bottom < pRect1->top));
|
---|
778 | }
|
---|
779 |
|
---|
780 | bool VBoxDispVHWARectInclude(RECTL * pRect1, RECTL * pRect2)
|
---|
781 | {
|
---|
782 | return ((pRect1->left <= pRect2->left && pRect1->right >= pRect2->right)
|
---|
783 | && (pRect1->top <= pRect2->top && pRect1->bottom >= pRect2->bottom));
|
---|
784 | }
|
---|
785 |
|
---|
786 |
|
---|
787 | bool VBoxDispVHWARegionIntersects(PVBOXVHWAREGION pReg, RECTL * pRect)
|
---|
788 | {
|
---|
789 | if(!pReg->bValid)
|
---|
790 | return false;
|
---|
791 | return VBoxDispVHWARectIntersect(&pReg->Rect, pRect);
|
---|
792 | }
|
---|
793 |
|
---|
794 | bool VBoxDispVHWARegionIncludes(PVBOXVHWAREGION pReg, RECTL * pRect)
|
---|
795 | {
|
---|
796 | if(!pReg->bValid)
|
---|
797 | return false;
|
---|
798 | return VBoxDispVHWARectInclude(&pReg->Rect, pRect);
|
---|
799 | }
|
---|
800 |
|
---|
801 | bool VBoxDispVHWARegionIncluded(PVBOXVHWAREGION pReg, RECTL * pRect)
|
---|
802 | {
|
---|
803 | if(!pReg->bValid)
|
---|
804 | return true;
|
---|
805 | return VBoxDispVHWARectInclude(pRect, &pReg->Rect);
|
---|
806 | }
|
---|
807 |
|
---|
808 | void VBoxDispVHWARegionSet(PVBOXVHWAREGION pReg, RECTL * pRect)
|
---|
809 | {
|
---|
810 | if(VBoxDispVHWARectIsEmpty(pRect))
|
---|
811 | {
|
---|
812 | pReg->bValid = false;
|
---|
813 | }
|
---|
814 | else
|
---|
815 | {
|
---|
816 | pReg->Rect = *pRect;
|
---|
817 | pReg->bValid = true;
|
---|
818 | }
|
---|
819 | }
|
---|
820 |
|
---|
821 | void VBoxDispVHWARegionAdd(PVBOXVHWAREGION pReg, RECTL * pRect)
|
---|
822 | {
|
---|
823 | if(VBoxDispVHWARectIsEmpty(pRect))
|
---|
824 | {
|
---|
825 | return;
|
---|
826 | }
|
---|
827 | else if(!pReg->bValid)
|
---|
828 | {
|
---|
829 | VBoxDispVHWARegionSet(pReg, pRect);
|
---|
830 | }
|
---|
831 | else
|
---|
832 | {
|
---|
833 | VBoxDispVHWARectUnited(&pReg->Rect, &pReg->Rect, pRect);
|
---|
834 | }
|
---|
835 | }
|
---|
836 |
|
---|
837 | void VBoxDispVHWARegionInit(PVBOXVHWAREGION pReg)
|
---|
838 | {
|
---|
839 | pReg->bValid = false;
|
---|
840 | }
|
---|
841 |
|
---|
842 | void VBoxDispVHWARegionClear(PVBOXVHWAREGION pReg)
|
---|
843 | {
|
---|
844 | pReg->bValid = false;
|
---|
845 | }
|
---|
846 |
|
---|
847 | bool VBoxDispVHWARegionValid(PVBOXVHWAREGION pReg)
|
---|
848 | {
|
---|
849 | return pReg->bValid;
|
---|
850 | }
|
---|
851 |
|
---|
852 | void VBoxDispVHWARegionTrySubstitute(PVBOXVHWAREGION pReg, const RECTL *pRect)
|
---|
853 | {
|
---|
854 | if(!pReg->bValid)
|
---|
855 | return;
|
---|
856 |
|
---|
857 | if(pReg->Rect.left >= pRect->left && pReg->Rect.right <= pRect->right)
|
---|
858 | {
|
---|
859 | LONG t = MAX(pReg->Rect.top, pRect->top);
|
---|
860 | LONG b = MIN(pReg->Rect.bottom, pRect->bottom);
|
---|
861 | if(t < b)
|
---|
862 | {
|
---|
863 | pReg->Rect.top = t;
|
---|
864 | pReg->Rect.bottom = b;
|
---|
865 | }
|
---|
866 | else
|
---|
867 | {
|
---|
868 | pReg->bValid = false;
|
---|
869 | }
|
---|
870 | }
|
---|
871 | else if(pReg->Rect.top >= pRect->top && pReg->Rect.bottom <= pRect->bottom)
|
---|
872 | {
|
---|
873 | LONG l = MAX(pReg->Rect.left, pRect->left);
|
---|
874 | LONG r = MIN(pReg->Rect.right, pRect->right);
|
---|
875 | if(l < r)
|
---|
876 | {
|
---|
877 | pReg->Rect.left = l;
|
---|
878 | pReg->Rect.right = r;
|
---|
879 | }
|
---|
880 | else
|
---|
881 | {
|
---|
882 | pReg->bValid = false;
|
---|
883 | }
|
---|
884 | }
|
---|
885 | }
|
---|