/* Makes a table of video modes consisting of:
* Default modes
* Custom modes manually added to registry
* Custom modes for all displays (either from a display change hint or stored in registry)
* 2 special modes, for a pending display change for this adapter. See comments below.
*/
void VBoxMPXpdmBuildVideoModesTable(PVBOXMP_DEVEXT pExt)
{
uint32_t cStandartModes;
BOOLEAN bPending, bHaveSpecial;
VIDEO_MODE_INFORMATION specialMode;
/* Fill table with standart modes and ones manually added to registry.
* Up to VBOXMP_MAX_VIDEO_MODES elements can be used, the rest is reserved
* for custom mode alternating indexes.
*/
cStandartModes = VBoxMPFillModesTable(pExt, pExt->iDevice, pExt->aVideoModes, VBOXMP_MAX_VIDEO_MODES, NULL);
/* Add custom mode for this display to the table */
/* Make 2 entries in the video mode table. */
uint32_t iModeBase = cStandartModes;
/* Take the alternating index into account. */
BOOLEAN bAlternativeIndex = (pExt->iInvocationCounter % 2)? TRUE: FALSE;
uint32_t iSpecialMode = iModeBase + (bAlternativeIndex? 1: 0);
uint32_t iStandardMode = iModeBase + (bAlternativeIndex? 0: 1);
/* Fill the special mode. */
memcpy(&pExt->aVideoModes[iSpecialMode], &g_CustomVideoModes[pExt->iDevice], sizeof(VIDEO_MODE_INFORMATION));
pExt->aVideoModes[iSpecialMode].ModeIndex = iSpecialMode + 1;
/* Wipe the other entry so it is not selected. */
memcpy(&pExt->aVideoModes[iStandardMode], &pExt->aVideoModes[3], sizeof(VIDEO_MODE_INFORMATION));
pExt->aVideoModes[iStandardMode].ModeIndex = iStandardMode + 1;
LOG(("added special mode[%d] %dx%d:%d for display %d\n",
iSpecialMode,
pExt->aVideoModes[iSpecialMode].VisScreenWidth,
pExt->aVideoModes[iSpecialMode].VisScreenHeight,
pExt->aVideoModes[iSpecialMode].BitsPerPlane,
pExt->iDevice));
/* Check if host wants us to switch video mode and it's for this adapter */
bPending = VBoxMPCheckPendingVideoMode(pExt, &specialMode);
bHaveSpecial = bPending && (pExt->iDevice == specialMode.ModeIndex);
LOG(("bPending %d, pExt->iDevice %d, specialMode.ModeIndex %d",
bPending, pExt->iDevice, specialMode.ModeIndex));
/* Check the startup case */
if (!bHaveSpecial && VBoxMPIsStartingUp(pExt, pExt->iDevice))
{
uint32_t xres=0, yres=0, bpp=0;
LOG(("Startup for screen %d", pExt->iDevice));
/* Check if we could make valid mode from values stored to registry */
if (VBoxMPValidateVideoModeParams(pExt, pExt->iDevice, xres, yres, bpp))
{
LOG(("Startup for screen %d validated %dx%d %d", pExt->iDevice, xres, yres, bpp));
VBoxFillVidModeInfo(&specialMode, xres, yres, bpp, 0, 0);
bHaveSpecial = TRUE;
}
}
/* Update number of modes. Each display has 2 entries for alternating custom mode index. */
pExt->cVideoModes = cStandartModes + 2;
if (bHaveSpecial)
{
/* We need to alternate mode index entry for a pending mode change,
* else windows will ignore actual mode change call.
* Only alternate index if one of mode parameters changed and
* regardless of conditions always add 2 entries to the table.
*/
BOOLEAN bAlternativeIndex = FALSE;
BOOLEAN bChanged = (pExt->Prev_xres!=specialMode.VisScreenWidth
|| pExt->Prev_yres!=specialMode.VisScreenHeight
|| pExt->Prev_bpp!=specialMode.BitsPerPlane);
LOG(("prev %dx%dx%d, special %dx%dx%d",
pExt->Prev_xres, pExt->Prev_yres, pExt->Prev_bpp,
specialMode.VisScreenWidth, specialMode.VisScreenHeight, specialMode.BitsPerPlane));
if (bChanged)
{
pExt->Prev_xres = specialMode.VisScreenWidth;
pExt->Prev_yres = specialMode.VisScreenHeight;
pExt->Prev_bpp = specialMode.BitsPerPlane;
}
/* Check if we need to alternate the index */
if (!VBoxMPIsStartingUp(pExt, pExt->iDevice))
{
if (bChanged)
{
pExt->iInvocationCounter++;
}
if (pExt->iInvocationCounter % 2)
{
bAlternativeIndex = TRUE;
}
}
uint32_t iSpecialModeElement = cStandartModes + (bAlternativeIndex? 1: 0);
uint32_t iSpecialModeElementOld = cStandartModes + (bAlternativeIndex? 0: 1);
LOG(("add special mode[%d] %dx%d:%d for display %d (bChanged=%d, bAlternativeIndex=%d)",
iSpecialModeElement, specialMode.VisScreenWidth, specialMode.VisScreenHeight, specialMode.BitsPerPlane,
pExt->iDevice, bChanged, bAlternativeIndex));
/* Add special mode to the table
* Note: Y offset isn't used for a host-supplied modes
*/
specialMode.ModeIndex = iSpecialModeElement + 1;
memcpy(&pExt->aVideoModes[iSpecialModeElement], &specialMode, sizeof(VIDEO_MODE_INFORMATION));
/* Save special mode in the custom modes table */
memcpy(&g_CustomVideoModes[pExt->iDevice], &specialMode, sizeof(VIDEO_MODE_INFORMATION));
/* Wipe the old entry so the special mode will be found in the new positions. */
memcpy(&pExt->aVideoModes[iSpecialModeElementOld], &pExt->aVideoModes[3], sizeof(VIDEO_MODE_INFORMATION));
pExt->aVideoModes[iSpecialModeElementOld].ModeIndex = iSpecialModeElementOld + 1;
/* Save special mode info to registry */
VBoxMPRegSaveModeInfo(pExt, pExt->iDevice, &specialMode);
}
#if defined(LOG_ENABLED)
do
{
LOG(("Filled %d modes for display %d", pExt->cVideoModes, pExt->iDevice));
for (uint32_t i=0; i < pExt->cVideoModes; ++i)
{
LOG(("Mode[%2d]: %4dx%4d:%2d (idx=%d)",
i, pExt->aVideoModes[i].VisScreenWidth, pExt->aVideoModes[i].VisScreenHeight,
pExt->aVideoModes[i].BitsPerPlane, pExt->aVideoModes[i].ModeIndex));
}
} while (0);
#endif
}
/* Updates missing video mode params with current values,
* Checks if resulting mode is liked by the host and fits into VRAM.
* Returns TRUE if resulting mode could be used.
*/
static BOOLEAN
VBoxMPValidateVideoModeParams(PVBOXMP_DEVEXT pExt, uint32_t iDisplay, uint32_t &xres, uint32_t &yres, uint32_t &bpp)
{
/* Make sure all important video mode values are set */
if (VBoxMPIsStartingUp(pExt, iDisplay))
{
/* Use stored custom values only if nothing was read from host. */
xres = xres ? xres:g_CustomVideoModes[iDisplay].VisScreenWidth;
yres = yres ? yres:g_CustomVideoModes[iDisplay].VisScreenHeight;
bpp = bpp ? bpp :g_CustomVideoModes[iDisplay].BitsPerPlane;
}
else
{
/* Use current values for field which weren't read from host. */
#ifdef VBOX_XPDM_MINIPORT
xres = xres ? xres:pExt->CurrentModeWidth;
yres = yres ? yres:pExt->CurrentModeHeight;
bpp = bpp ? bpp :pExt->CurrentModeBPP;
#else
PVBOXWDDM_ALLOC_DATA pAllocData = pExt->aSources[iDisplay].pPrimaryAllocation ?
&pExt->aSources[iDisplay].pPrimaryAllocation->AllocData
: &pExt->aSources[iDisplay].AllocData;
xres = xres ? xres:pAllocData->SurfDesc.width;
yres = yres ? yres:pAllocData->SurfDesc.height;
/* VBox WDDM driver does not allow 24 modes since OS could choose the 24bit mode as default in that case,
* the pExt->aSources[iDisplay].AllocData.SurfDesc.bpp could be initially 24 though,
* i.e. when driver occurs the current mode on driver load via DxgkCbAcquirePostDisplayOwnership
* and until driver reports the supported modes
* This is true for Win8 Display-Only driver currently since DxgkCbAcquirePostDisplayOwnership is only used by it
*
* This is why we need to adjust the current mode bpp to the value we actually report as supported */
bpp = bpp ? bpp : VBoxMPAdjustBpp(pAllocData->SurfDesc.bpp);
#endif
}
/* Round down width to be a multiple of 8 if necessary */
if (!VBoxCommonFromDeviceExt(pExt)->fAnyX)
{
xres &= 0xFFF8;
}
/* We always need bpp to be set */
if (!bpp)
{
bpp=32;
}
if (!VBoxMPValidateVideoModeParamsGuest(pExt, iDisplay, xres, yres, bpp))
{
WARN(("GUEST does not like special mode %dx%d:%d for display %d", xres, yres, bpp, iDisplay));
return FALSE;
}
/* Check if host likes this mode */
if (!VBoxLikesVideoMode(iDisplay, xres, yres, bpp))
{
WARN_NOBP(("HOST does not like special mode %dx%d:%d for display %d", xres, yres, bpp, iDisplay));
return FALSE;
}
#ifdef VBOX_XPDM_MINIPORT
ULONG vramSize = pExt->pPrimary->u.primary.ulMaxFrameBufferSize;
#else
ULONG vramSize = vboxWddmVramCpuVisibleSegmentSize(pExt);
vramSize /= pExt->u.primary.commonInfo.cDisplays;
# ifdef VBOX_WDDM_WIN8
if (!g_VBoxDisplayOnly)
# endif
{
/* at least two surfaces will be needed: primary & shadow */
vramSize /= 2;
}
vramSize &= ~PAGE_OFFSET_MASK;
#endif
/* Check that values are valid and mode fits into VRAM */
if (!xres || !yres
|| !((bpp == 16)
#ifdef VBOX_WITH_8BPP_MODES
|| (bpp == 8)
#endif
|| (bpp == 24)
|| (bpp == 32)))
{
LOG(("invalid params for special mode %dx%d:%d", xres, yres, bpp));
return FALSE;
}
if ((xres * yres * (bpp / 8) >= vramSize))
{
/* Store values of last reported release log message to avoid log flooding. */
static uint32_t s_xresNoVRAM=0, s_yresNoVRAM=0, s_bppNoVRAM=0;
LOG(("not enough VRAM for video mode %dx%dx%dbpp. Available: %d bytes. Required: more than %d bytes.",
xres, yres, bpp, vramSize, xres * yres * (bpp / 8)));
s_xresNoVRAM = xres;
s_yresNoVRAM = yres;
s_bppNoVRAM = bpp;
return FALSE;
}
return TRUE;
}
/* Makes a table of video modes consisting of:
* Default modes
* Custom modes manually added to registry
* Custom modes for all displays (either from a display change hint or stored in registry)
* 2 special modes, for a pending display change for this adapter. See comments below.
*/
void VBoxMPXpdmBuildVideoModesTable(PVBOXMP_DEVEXT pExt)
{
uint32_t cStandartModes, cCustomModes;
BOOLEAN bPending, bHaveSpecial;
VIDEO_MODE_INFORMATION specialMode;
/* Fill table with standart modes and ones manually added to registry */
cStandartModes = VBoxMPFillModesTable(pExt, pExt->iDevice, g_VideoModes, RT_ELEMENTS(g_VideoModes), NULL);
/* Add custom modes for all displays to the table */
cCustomModes = VBoxCommonFromDeviceExt(pExt)->cDisplays;
for (uint32_t i=0; i<cCustomModes; i++)
{
memcpy(&g_VideoModes[cStandartModes+i], &g_CustomVideoModes[i], sizeof(VIDEO_MODE_INFORMATION));
g_VideoModes[cStandartModes+i].ModeIndex = cStandartModes+i+1;
}
/* Check if host wants us to switch video mode and it's for this adapter */
bPending = VBoxMPCheckPendingVideoMode(pExt, &specialMode);
bHaveSpecial = bPending && (pExt->iDevice == specialMode.ModeIndex);
/* Check the startup case */
if (!bHaveSpecial && VBoxMPIsStartingUp(pExt, pExt->iDevice))
{
uint32_t xres=0, yres=0, bpp=0;
/* Check if we could make valid mode from values stored to registry */
if (VBoxMPValidateVideoModeParams(pExt, pExt->iDevice, xres, yres, bpp))
{
VBoxFillVidModeInfo(&specialMode, xres, yres, bpp, 0, 0);
bHaveSpecial = TRUE;
}
}
/* Update number of modes */
g_NumVideoModes = cStandartModes + cCustomModes;
if (!bHaveSpecial)
{
/* Just add 2 dummy modes to maintain table size. */
memcpy(&g_VideoModes[g_NumVideoModes], &g_VideoModes[2], sizeof(VIDEO_MODE_INFORMATION));
g_VideoModes[g_NumVideoModes].ModeIndex = g_NumVideoModes+1;
g_NumVideoModes++;
memcpy(&g_VideoModes[g_NumVideoModes], &g_VideoModes[2], sizeof(VIDEO_MODE_INFORMATION));
g_VideoModes[g_NumVideoModes].ModeIndex = g_NumVideoModes+1;
g_NumVideoModes++;
}
else
{
/* We need to alternate mode index entry for a pending mode change,
* else windows will ignore actual mode change call.
* Only alternate index if one of mode parameters changed and
* regardless of conditions always add 2 entries to the table.
*/
static int s_InvocationCounter=0;
BOOLEAN bAlternativeIndex = FALSE;
static uint32_t s_Prev_xres=0;
static uint32_t s_Prev_yres=0;
static uint32_t s_Prev_bpp=0;
BOOLEAN bChanged = (s_Prev_xres!=specialMode.VisScreenWidth
|| s_Prev_yres!=specialMode.VisScreenHeight
|| s_Prev_bpp!=specialMode.BitsPerPlane);
if (bChanged)
{
s_Prev_xres = specialMode.VisScreenWidth;
s_Prev_yres = specialMode.VisScreenHeight;
s_Prev_bpp = specialMode.BitsPerPlane;
}
/* Make sure there's no other mode in the table with same parameters,
* because we need windows to pick up a new video mode index otherwise
* actual mode change wouldn't happen.
*/
int iFoundIdx;
uint32_t uiStart=0;
while (0 <= (iFoundIdx = VBoxMPFindVideoMode(&g_VideoModes[uiStart], g_NumVideoModes-uiStart, &specialMode)))
{
memcpy(&g_VideoModes[uiStart+iFoundIdx], &g_VideoModes[2], sizeof(VIDEO_MODE_INFORMATION));
g_VideoModes[uiStart+iFoundIdx].ModeIndex = uiStart+iFoundIdx+1;
uiStart += iFoundIdx+1;
}
/* Check if we need to alternate the index */
if (!VBoxMPIsStartingUp(pExt, pExt->iDevice))
{
if (bChanged)
{
s_InvocationCounter++;
}
if (s_InvocationCounter % 2)
{
bAlternativeIndex = TRUE;
memcpy(&g_VideoModes[g_NumVideoModes], &g_VideoModes[2], sizeof(VIDEO_MODE_INFORMATION));
g_VideoModes[g_NumVideoModes].ModeIndex = g_NumVideoModes+1;
++g_NumVideoModes;
}
}
LOG(("add special mode[%d] %dx%d:%d for display %d (bChanged=%d, bAlretnativeIndex=%d)",
g_NumVideoModes, specialMode.VisScreenWidth, specialMode.VisScreenHeight, specialMode.BitsPerPlane,
pExt->iDevice, bChanged, bAlternativeIndex));
/* Add special mode to the table
* Note: Y offset isn't used for a host-supplied modes
*/
specialMode.ModeIndex = g_NumVideoModes+1;
memcpy(&g_VideoModes[g_NumVideoModes], &specialMode, sizeof(VIDEO_MODE_INFORMATION));
++g_NumVideoModes;
/* Save special mode in the custom modes table */
memcpy(&g_CustomVideoModes[pExt->iDevice], &specialMode, sizeof(VIDEO_MODE_INFORMATION));
/* Make sure we've added 2nd mode if necessary to maintain table size */
if (VBoxMPIsStartingUp(pExt, pExt->iDevice))
{
memcpy(&g_VideoModes[g_NumVideoModes], &g_VideoModes[g_NumVideoModes-1], sizeof(VIDEO_MODE_INFORMATION));
g_VideoModes[g_NumVideoModes].ModeIndex = g_NumVideoModes+1;
++g_NumVideoModes;
}
else if (!bAlternativeIndex)
{
memcpy(&g_VideoModes[g_NumVideoModes], &g_VideoModes[2], sizeof(VIDEO_MODE_INFORMATION));
g_VideoModes[g_NumVideoModes].ModeIndex = g_NumVideoModes+1;
++g_NumVideoModes;
}
/* Save special mode info to registry */
VBoxMPRegSaveModeInfo(pExt, pExt->iDevice, &specialMode);
}
#if defined(LOG_ENABLED)
do
{
LOG(("Filled %d modes", g_NumVideoModes));
for (uint32_t i=0; i<g_NumVideoModes; ++i)
{
LOG(("Mode[%2d]: %4dx%4d:%2d (idx=%d)",
i, g_VideoModes[i].VisScreenWidth, g_VideoModes[i].VisScreenHeight,
g_VideoModes[i].BitsPerPlane, g_VideoModes[i].ModeIndex));
}
} while (0);
#endif
}
static void
VBoxWddmBuildVideoModesInfo(PVBOXMP_DEVEXT pExt, D3DDDI_VIDEO_PRESENT_TARGET_ID VidPnTargetId,
PVBOXWDDM_VIDEOMODES_INFO pModes, VIDEO_MODE_INFORMATION *paAddlModes,
UINT cAddlModes)
{
pModes->cResolutions = RT_ELEMENTS(pModes->aResolutions);
/* Add default modes and ones read from registry. */
pModes->cModes = VBoxMPFillModesTable(pExt, VidPnTargetId, pModes->aModes, RT_ELEMENTS(pModes->aModes), &pModes->iPreferredMode);
Assert(pModes->cModes<=RT_ELEMENTS(pModes->aModes));
if (!VBoxMPIsStartingUp(pExt, VidPnTargetId))
{
/* make sure we keep the current mode to avoid mode flickering */
PVBOXWDDM_ALLOC_DATA pAllocData = pExt->aSources[VidPnTargetId].pPrimaryAllocation ?
&pExt->aSources[VidPnTargetId].pPrimaryAllocation->AllocData
: &pExt->aSources[VidPnTargetId].AllocData;
if (pModes->cModes < RT_ELEMENTS(pModes->aModes))
{
/* VBox WDDM driver does not allow 24 modes since OS could choose the 24bit mode as default in that case,
* the pExt->aSources[iDisplay].AllocData.SurfDesc.bpp could be initially 24 though,
* i.e. when driver occurs the current mode on driver load via DxgkCbAcquirePostDisplayOwnership
* and until driver reports the supported modes
* This is true for Win8 Display-Only driver currently since DxgkCbAcquirePostDisplayOwnership is only used by it
*
* This is why we check the bpp to be supported here and add the current mode to the list only in that case */
if (VBoxMPIsSupportedBpp(pAllocData->SurfDesc.bpp))
{
int foundIdx;
VBoxFillVidModeInfo(&pModes->aModes[pModes->cModes], pAllocData->SurfDesc.width, pAllocData->SurfDesc.height, pAllocData->SurfDesc.bpp, 1/*index*/, 0);
if ((foundIdx=VBoxMPFindVideoMode(pModes->aModes, pModes->cModes, &pModes->aModes[pModes->cModes]))>=0)
{
pModes->iPreferredMode = foundIdx;
}
else
{
pModes->iPreferredMode = pModes->cModes;
++pModes->cModes;
}
#ifdef VBOX_WITH_8BPP_MODES
int bytesPerPixel=1;
#else
int bytesPerPixel=2;
#endif
for (; bytesPerPixel<=4; bytesPerPixel++)
{
int bpp = 8*bytesPerPixel;
if (bpp == pAllocData->SurfDesc.bpp)
continue;
if (!VBoxMPValidateVideoModeParamsGuest(pExt, VidPnTargetId,
pAllocData->SurfDesc.width, pAllocData->SurfDesc.height,
bpp))
continue;
if (pModes->cModes >= RT_ELEMENTS(pModes->aModes))
{
WARN(("ran out of video modes 2"));
break;
}
VBoxFillVidModeInfo(&pModes->aModes[pModes->cModes],
pAllocData->SurfDesc.width, pAllocData->SurfDesc.height,
bpp, pModes->cModes, 0);
if (VBoxMPFindVideoMode(pModes->aModes, pModes->cModes, &pModes->aModes[pModes->cModes]) < 0)
{
++pModes->cModes;
}
}
}
}
else
{
WARN(("ran out of video modes 1"));
}
}
/* Check if there's a pending display change request for this adapter */
VIDEO_MODE_INFORMATION specialMode;
if (VBoxMPCheckPendingVideoMode(pExt, &specialMode) && (specialMode.ModeIndex==VidPnTargetId))
{
/*Minor hack, ModeIndex!=0 Means this mode has been validated already and not just read from registry */
specialMode.ModeIndex = 1;
memcpy(&g_CustomVideoModes[VidPnTargetId], &specialMode, sizeof(VIDEO_MODE_INFORMATION));
/* Save mode to registry */
VBoxMPRegSaveModeInfo(pExt, VidPnTargetId, &specialMode);
}
/* Validate the mode which has been read from registry */
if (!g_CustomVideoModes[VidPnTargetId].ModeIndex)
{
uint32_t xres, yres, bpp;
xres = g_CustomVideoModes[VidPnTargetId].VisScreenWidth;
yres = g_CustomVideoModes[VidPnTargetId].VisScreenHeight;
bpp = g_CustomVideoModes[VidPnTargetId].BitsPerPlane;
if (VBoxMPValidateVideoModeParams(pExt, VidPnTargetId, xres, yres, bpp))
{
VBoxFillVidModeInfo(&g_CustomVideoModes[VidPnTargetId], xres, yres, bpp, 1/*index*/, 0);
Assert(g_CustomVideoModes[VidPnTargetId].ModeIndex == 1);
}
}
/* Add custom mode to the table */
if (g_CustomVideoModes[VidPnTargetId].ModeIndex)
{
if (RT_ELEMENTS(pModes->aModes) > pModes->cModes)
{
g_CustomVideoModes[VidPnTargetId].ModeIndex = pModes->cModes;
pModes->aModes[pModes->cModes] = g_CustomVideoModes[VidPnTargetId];
/* Check if we already have this mode in the table */
int foundIdx;
if ((foundIdx=VBoxMPFindVideoMode(pModes->aModes, pModes->cModes, &pModes->aModes[pModes->cModes]))>=0)
{
pModes->iPreferredMode = foundIdx;
}
else
{
pModes->iPreferredMode = pModes->cModes;
++pModes->cModes;
}
/* Add other bpp modes for this custom resolution */
#ifdef VBOX_WITH_8BPP_MODES
UINT bpp=8;
#else
UINT bpp=16;
#endif
for (; bpp<=32; bpp+=8)
{
if (RT_ELEMENTS(pModes->aModes) == pModes->cModes)
{
WARN(("table full, can't add other bpp for specail mode!"));
#ifdef DEBUG_misha
/* this is definitely something we do not expect */
AssertFailed();
#endif
break;
}
AssertRelease(RT_ELEMENTS(pModes->aModes) > pModes->cModes); /* if not - the driver state is screwed up, @todo: better do KeBugCheckEx here */
if (pModes->aModes[pModes->iPreferredMode].BitsPerPlane == bpp)
continue;
if (!VBoxMPValidateVideoModeParamsGuest(pExt, VidPnTargetId,
pModes->aModes[pModes->iPreferredMode].VisScreenWidth,
pModes->aModes[pModes->iPreferredMode].VisScreenHeight,
bpp))
continue;
VBoxFillVidModeInfo(&pModes->aModes[pModes->cModes],
pModes->aModes[pModes->iPreferredMode].VisScreenWidth,
pModes->aModes[pModes->iPreferredMode].VisScreenHeight,
bpp, pModes->cModes, 0);
if (VBoxMPFindVideoMode(pModes->aModes, pModes->cModes, &pModes->aModes[pModes->cModes]) < 0)
{
++pModes->cModes;
}
}
}
else
{
AssertRelease(RT_ELEMENTS(pModes->aModes) == pModes->cModes); /* if not - the driver state is screwed up, @todo: better do KeBugCheckEx here */
WARN(("table full, can't add video mode for a host request!"));
#ifdef DEBUG_misha
/* this is definitely something we do not expect */
AssertFailed();
#endif
}
}
/* Check and Add additional modes passed in paAddlModes */
for (UINT i=0; i<cAddlModes; ++i)
{
if (RT_ELEMENTS(pModes->aModes) == pModes->cModes)
{
WARN(("table full, can't add addl modes!"));
#ifdef DEBUG_misha
/* this is definitely something we do not expect */
AssertFailed();
#endif
break;
}
AssertRelease(RT_ELEMENTS(pModes->aModes) > pModes->cModes); /* if not - the driver state is screwed up, @todo: better do KeBugCheckEx here */
if (!pExt->fAnyX)
{
paAddlModes[i].VisScreenWidth &= 0xFFF8;
}
if (VBoxLikesVideoMode(VidPnTargetId, paAddlModes[i].VisScreenWidth, paAddlModes[i].VisScreenHeight, paAddlModes[i].BitsPerPlane))
{
int foundIdx;
if ((foundIdx=VBoxMPFindVideoMode(pModes->aModes, pModes->cModes, &paAddlModes[i]))>=0)
{
pModes->iPreferredMode = foundIdx;
}
else
{
memcpy(&pModes->aModes[pModes->cModes], &paAddlModes[i], sizeof(VIDEO_MODE_INFORMATION));
pModes->aModes[pModes->cModes].ModeIndex = pModes->cModes;
++pModes->cModes;
}
}
}
/* Build resolution table */
VBoxWddmBuildResolutionTableForModes(pModes);
}
/* Updates missing video mode params with current values,
* Checks if resulting mode is liked by the host and fits into VRAM.
* Returns TRUE if resulting mode could be used.
*/
static BOOLEAN
VBoxMPValidateVideoModeParams(PVBOXMP_DEVEXT pExt, uint32_t iDisplay, uint32_t &xres, uint32_t &yres, uint32_t &bpp)
{
/* Make sure all important video mode values are set */
if (VBoxMPIsStartingUp(pExt, iDisplay))
{
/* Use stored custom values only if nothing was read from host. */
xres = xres ? xres:g_CustomVideoModes[iDisplay].VisScreenWidth;
yres = yres ? yres:g_CustomVideoModes[iDisplay].VisScreenHeight;
bpp = bpp ? bpp :g_CustomVideoModes[iDisplay].BitsPerPlane;
}
else
{
/* Use current values for field which weren't read from host. */
#ifdef VBOX_XPDM_MINIPORT
xres = xres ? xres:pExt->CurrentModeWidth;
yres = yres ? yres:pExt->CurrentModeHeight;
bpp = bpp ? bpp :pExt->CurrentModeBPP;
#else
xres = xres ? xres:pExt->aSources[iDisplay].pPrimaryAllocation->SurfDesc.width;
yres = yres ? yres:pExt->aSources[iDisplay].pPrimaryAllocation->SurfDesc.height;
bpp = bpp ? bpp :pExt->aSources[iDisplay].pPrimaryAllocation->SurfDesc.bpp;
#endif
}
/* Round down width to be a multiple of 8 if necessary */
if (!pExt->fAnyX)
{
xres &= 0xFFF8;
}
/* We always need bpp to be set */
if (!bpp)
{
bpp=32;
}
if (!VBoxMPValidateVideoModeParamsGuest(pExt, iDisplay, xres, yres, bpp))
return FALSE;
/* Check if host likes this mode */
if (!VBoxLikesVideoMode(iDisplay, xres, yres, bpp))
{
WARN_NOBP(("host does not like special mode %dx%d:%d for display %d", xres, yres, bpp, iDisplay));
return FALSE;
}
#ifdef VBOX_XPDM_MINIPORT
ULONG vramSize = pExt->pPrimary->u.primary.ulMaxFrameBufferSize;
#else
ULONG vramSize = vboxWddmVramCpuVisibleSegmentSize(pExt);
/* at least two surfaces will be needed: primary & shadow */
vramSize /= 2 * pExt->u.primary.commonInfo.cDisplays;
#endif
/* Check that values are valid and mode fits into VRAM */
if (!xres || !yres
|| !((bpp == 16)
#ifdef VBOX_WITH_8BPP_MODES
|| (bpp == 8)
#endif
|| (bpp == 24)
|| (bpp == 32)))
{
LOG(("invalid params for special mode %dx%d:%d", xres, yres, bpp));
return FALSE;
}
if ((xres * yres * (bpp / 8) >= vramSize))
{
/* Store values of last reported release log message to avoid log flooding. */
static uint32_t s_xresNoVRAM=0, s_yresNoVRAM=0, s_bppNoVRAM=0;
LOG(("not enough VRAM for video mode %dx%dx%dbpp. Available: %d bytes. Required: more than %d bytes.",
xres, yres, bpp, vramSize, xres * yres * (bpp / 8)));
s_xresNoVRAM = xres;
s_yresNoVRAM = yres;
s_bppNoVRAM = bpp;
return FALSE;
}
return TRUE;
}