/* 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;
}
/* Helper function to dynamically build our table of standard video
* modes. We take the amount of VRAM and create modes with standard
* geometries until we've either reached the maximum number of modes
* or the available VRAM does not allow for additional modes.
* We also check registry for manually added video modes.
* Returns number of modes added to the table.
*/
static uint32_t
VBoxMPFillModesTable(PVBOXMP_DEVEXT pExt, int iDisplay, PVIDEO_MODE_INFORMATION pModesTable, size_t tableSize,
int32_t *pPrefModeIdx)
{
/* the resolution matrix */
struct
{
uint16_t xRes;
uint16_t yRes;
} resolutionMatrix[] =
{
/* standard modes */
{ 640, 480 },
{ 800, 600 },
{ 1024, 768 },
{ 1152, 864 },
{ 1280, 960 },
{ 1280, 1024 },
{ 1400, 1050 },
{ 1600, 1200 },
{ 1920, 1440 },
#ifndef VBOX_WITH_WDDM
/* multi screen modes with 1280x1024 */
{ 2560, 1024 },
{ 3840, 1024 },
{ 5120, 1024 },
/* multi screen modes with 1600x1200 */
{ 3200, 1200 },
{ 4800, 1200 },
{ 6400, 1200 },
#endif
};
#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
uint32_t iMode=0, iPrefIdx=0;
/* there are 4 color depths: 8, 16, 24 and 32bpp and we reserve 50% of the modes for other sources */
size_t maxModesPerColorDepth = VBOXMP_MAX_VIDEO_MODES / 2 / 4;
/* Always add 800x600 video modes. Windows XP+ needs at least 800x600 resolution
* and fallbacks to 800x600x4bpp VGA mode if the driver did not report suitable modes.
* This resolution could be rejected by a low resolution host (netbooks, etc).
*/
#ifdef VBOX_WITH_8BPP_MODES
int bytesPerPixel=1;
#else
int bytesPerPixel=2;
#endif
for (; bytesPerPixel<=4; bytesPerPixel++)
{
int bitsPerPixel = 8*bytesPerPixel;
if (800*600*bytesPerPixel > (LONG)vramSize)
{
/* we don't have enough VRAM for this mode */
continue;
}
if (!VBoxMPValidateVideoModeParamsGuest(pExt, iMode, 800, 600, bitsPerPixel))
continue;
VBoxFillVidModeInfo(&pModesTable[iMode], 800, 600, bitsPerPixel, iMode+1, 0);
if (32==bitsPerPixel)
{
iPrefIdx = iMode;
}
++iMode;
}
/* Query yoffset from the host */
ULONG yOffset = VBoxGetHeightReduction();
/* Iterate through our static resolution table and add supported video modes for different bpp's */
#ifdef VBOX_WITH_8BPP_MODES
bytesPerPixel=1;
#else
bytesPerPixel=2;
#endif
for (; bytesPerPixel<=4; bytesPerPixel++)
{
int bitsPerPixel = 8*bytesPerPixel;
size_t cAdded, resIndex;
for (cAdded=0, resIndex=0; resIndex<RT_ELEMENTS(resolutionMatrix) && cAdded<maxModesPerColorDepth; resIndex++)
{
if (resolutionMatrix[resIndex].xRes * resolutionMatrix[resIndex].yRes * bytesPerPixel > (LONG)vramSize)
{
/* we don't have enough VRAM for this mode */
continue;
}
if (yOffset == 0 && resolutionMatrix[resIndex].xRes == 800 && resolutionMatrix[resIndex].yRes == 600)
{
/* this mode was already added */
continue;
}
if (
#ifdef VBOX_WDDM_MINIPORT
/* 1024x768 resolution is a minimal resolutions for win8 to make most metro apps run.
* For small host display resolutions, host will dislike the mode 1024x768 and above
* if the framebuffer window requires scrolling to fit the guest resolution.
* So add 1024x768 resolution for win8 guest to allow user switch to it */
( (VBoxQueryWinVersion() != WIN8 && VBoxQueryWinVersion() != WIN81)
|| resolutionMatrix[resIndex].xRes != 1024
|| resolutionMatrix[resIndex].yRes != 768)
&&
#endif
!VBoxLikesVideoMode(iDisplay, resolutionMatrix[resIndex].xRes,
resolutionMatrix[resIndex].yRes - yOffset, bitsPerPixel))
{
/* host doesn't like this mode */
continue;
}
if (!VBoxMPValidateVideoModeParamsGuest(pExt, iDisplay, resolutionMatrix[resIndex].xRes, resolutionMatrix[resIndex].yRes, bitsPerPixel))
{
/* guest does not like this mode */
continue;
}
/* Sanity check, we shouldn't ever get here */
if (iMode >= tableSize)
{
WARN(("video modes table overflow!"));
break;
}
VBoxFillVidModeInfo(&pModesTable[iMode], resolutionMatrix[resIndex].xRes, resolutionMatrix[resIndex].yRes, bitsPerPixel, iMode+1, yOffset);
++iMode;
++cAdded;
}
}
/* Check registry for manually added modes, up to 128 entries is supported
* Give up on the first error encountered.
*/
VBOXMPCMNREGISTRY Registry;
int fPrefSet=0;
VP_STATUS rc;
rc = VBoxMPCmnRegInit(pExt, &Registry);
VBOXMP_WARN_VPS(rc);
for (int curKey=0; curKey<128; curKey++)
{
if (iMode>=tableSize)
{
WARN(("ignoring possible custom mode(s), table is full!"));
break;
}
wchar_t keyname[24];
uint32_t xres, yres, bpp = 0;
swprintf(keyname, L"CustomMode%dWidth", curKey);
rc = VBoxMPCmnRegQueryDword(Registry, keyname, &xres);
VBOXMP_CHECK_VPS_BREAK(rc);
swprintf(keyname, L"CustomMode%dHeight", curKey);
rc = VBoxMPCmnRegQueryDword(Registry, keyname, &yres);
VBOXMP_CHECK_VPS_BREAK(rc);
swprintf(keyname, L"CustomMode%dBPP", curKey);
rc = VBoxMPCmnRegQueryDword(Registry, keyname, &bpp);
VBOXMP_CHECK_VPS_BREAK(rc);
LOG(("got custom mode[%u]=%ux%u:%u", curKey, xres, yres, bpp));
/* round down width to be a multiple of 8 if necessary */
if (!VBoxCommonFromDeviceExt(pExt)->fAnyX)
{
xres &= 0xFFF8;
}
if ( (xres > (1 << 16))
|| (yres > (1 << 16))
|| ( (bpp != 16)
&& (bpp != 24)
&& (bpp != 32)))
{
/* incorrect values */
break;
}
/* does it fit within our VRAM? */
if (xres * yres * (bpp / 8) > vramSize)
{
/* we don't have enough VRAM for this mode */
break;
}
if (!VBoxLikesVideoMode(iDisplay, xres, yres, bpp))
{
/* host doesn't like this mode */
break;
}
if (!VBoxMPValidateVideoModeParamsGuest(pExt, iDisplay, xres, yres, bpp))
{
/* guest does not like this mode */
continue;
}
LOG(("adding video mode from registry."));
VBoxFillVidModeInfo(&pModesTable[iMode], xres, yres, bpp, iMode+1, yOffset);
if (!fPrefSet)
{
fPrefSet = 1;
iPrefIdx = iMode;
}
#ifdef VBOX_WDDM_MINIPORT
/*check if the same mode has been added to the table already*/
int foundIdx = VBoxMPFindVideoMode(pModesTable, iMode, &pModesTable[iMode]);
if (foundIdx>=0)
{
if (iPrefIdx==iMode)
{
iPrefIdx=foundIdx;
}
}
else
#endif
{
++iMode;
}
}
rc = VBoxMPCmnRegFini(Registry);
VBOXMP_WARN_VPS(rc);
if (pPrefModeIdx)
{
*pPrefModeIdx = iPrefIdx;
}
return iMode;
}
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));
/* 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);
}
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;
}