reactos/win32ss/gdi/eng/engmisc.c
David Quintana 057a69972f Sync with trunk r63174.
CORE-8176 #resolve #comment Trunk commit r63174 should fix this issue. I merged from trunk to bring it into Shell-experiments.

svn path=/branches/shell-experiments/; revision=63175
2014-05-06 15:51:24 +00:00

303 lines
9.1 KiB
C

/*
* COPYRIGHT: See COPYING in the top level directory
* PROJECT: ReactOS Win32k subsystem
* PURPOSE: ENG misc Functions
* FILE: subsystems/win32/win32k/eng/engmisc.c
* PROGRAMER: ReactOS Team
*/
#include <win32k.h>
#define NDEBUG
#include <debug.h>
BOOL APIENTRY
IntEngEnter(PINTENG_ENTER_LEAVE EnterLeave,
SURFOBJ *psoDest,
RECTL *DestRect,
BOOL ReadOnly,
POINTL *Translate,
SURFOBJ **ppsoOutput)
{
LONG Exchange;
SIZEL BitmapSize;
POINTL SrcPoint;
LONG Width;
RECTL ClippedDestRect;
/* Normalize */
if (DestRect->right < DestRect->left)
{
Exchange = DestRect->left;
DestRect->left = DestRect->right;
DestRect->right = Exchange;
}
if (DestRect->bottom < DestRect->top)
{
Exchange = DestRect->top;
DestRect->top = DestRect->bottom;
DestRect->bottom = Exchange;
}
if (NULL != psoDest && STYPE_BITMAP != psoDest->iType &&
(NULL == psoDest->pvScan0 || 0 == psoDest->lDelta))
{
/* Driver needs to support DrvCopyBits, else we can't do anything */
SURFACE *psurfDest = CONTAINING_RECORD(psoDest, SURFACE, SurfObj);
if (!(psurfDest->flags & HOOK_COPYBITS))
{
return FALSE;
}
/* Allocate a temporary bitmap */
BitmapSize.cx = DestRect->right - DestRect->left;
BitmapSize.cy = DestRect->bottom - DestRect->top;
Width = WIDTH_BYTES_ALIGN32(BitmapSize.cx, BitsPerFormat(psoDest->iBitmapFormat));
EnterLeave->OutputBitmap = EngCreateBitmap(BitmapSize, Width,
psoDest->iBitmapFormat,
BMF_TOPDOWN | BMF_NOZEROINIT, NULL);
if (!EnterLeave->OutputBitmap)
{
DPRINT1("EngCreateBitmap() failed\n");
return FALSE;
}
*ppsoOutput = EngLockSurface((HSURF)EnterLeave->OutputBitmap);
if (*ppsoOutput == NULL)
{
EngDeleteSurface((HSURF)EnterLeave->OutputBitmap);
return FALSE;
}
EnterLeave->DestRect.left = 0;
EnterLeave->DestRect.top = 0;
EnterLeave->DestRect.right = BitmapSize.cx;
EnterLeave->DestRect.bottom = BitmapSize.cy;
SrcPoint.x = DestRect->left;
SrcPoint.y = DestRect->top;
ClippedDestRect = EnterLeave->DestRect;
if (SrcPoint.x < 0)
{
ClippedDestRect.left -= SrcPoint.x;
SrcPoint.x = 0;
}
if (psoDest->sizlBitmap.cx < SrcPoint.x + ClippedDestRect.right - ClippedDestRect.left)
{
ClippedDestRect.right = ClippedDestRect.left + psoDest->sizlBitmap.cx - SrcPoint.x;
}
if (SrcPoint.y < 0)
{
ClippedDestRect.top -= SrcPoint.y;
SrcPoint.y = 0;
}
if (psoDest->sizlBitmap.cy < SrcPoint.y + ClippedDestRect.bottom - ClippedDestRect.top)
{
ClippedDestRect.bottom = ClippedDestRect.top + psoDest->sizlBitmap.cy - SrcPoint.y;
}
EnterLeave->TrivialClipObj = EngCreateClip();
if (EnterLeave->TrivialClipObj == NULL)
{
EngUnlockSurface(*ppsoOutput);
EngDeleteSurface((HSURF)EnterLeave->OutputBitmap);
return FALSE;
}
EnterLeave->TrivialClipObj->iDComplexity = DC_TRIVIAL;
if (ClippedDestRect.left < (*ppsoOutput)->sizlBitmap.cx &&
0 <= ClippedDestRect.right &&
SrcPoint.x < psoDest->sizlBitmap.cx &&
ClippedDestRect.top <= (*ppsoOutput)->sizlBitmap.cy &&
0 <= ClippedDestRect.bottom &&
SrcPoint.y < psoDest->sizlBitmap.cy &&
! GDIDEVFUNCS(psoDest).CopyBits(
*ppsoOutput, psoDest,
EnterLeave->TrivialClipObj, NULL,
&ClippedDestRect, &SrcPoint))
{
EngDeleteClip(EnterLeave->TrivialClipObj);
EngUnlockSurface(*ppsoOutput);
EngDeleteSurface((HSURF)EnterLeave->OutputBitmap);
return FALSE;
}
EnterLeave->DestRect.left = DestRect->left;
EnterLeave->DestRect.top = DestRect->top;
EnterLeave->DestRect.right = DestRect->right;
EnterLeave->DestRect.bottom = DestRect->bottom;
Translate->x = - DestRect->left;
Translate->y = - DestRect->top;
}
else
{
Translate->x = 0;
Translate->y = 0;
*ppsoOutput = psoDest;
}
if (NULL != *ppsoOutput)
{
SURFACE* psurfOutput = CONTAINING_RECORD(*ppsoOutput, SURFACE, SurfObj);
if (0 != (psurfOutput->flags & HOOK_SYNCHRONIZE))
{
if (NULL != GDIDEVFUNCS(*ppsoOutput).SynchronizeSurface)
{
GDIDEVFUNCS(*ppsoOutput).SynchronizeSurface(*ppsoOutput, DestRect, 0);
}
else if (STYPE_BITMAP == (*ppsoOutput)->iType
&& NULL != GDIDEVFUNCS(*ppsoOutput).Synchronize)
{
GDIDEVFUNCS(*ppsoOutput).Synchronize((*ppsoOutput)->dhpdev, DestRect);
}
}
}
else return FALSE;
EnterLeave->DestObj = psoDest;
EnterLeave->OutputObj = *ppsoOutput;
EnterLeave->ReadOnly = ReadOnly;
return TRUE;
}
BOOL APIENTRY
IntEngLeave(PINTENG_ENTER_LEAVE EnterLeave)
{
POINTL SrcPoint;
BOOL Result = TRUE;
if (EnterLeave->OutputObj != EnterLeave->DestObj && NULL != EnterLeave->OutputObj)
{
if (! EnterLeave->ReadOnly)
{
SrcPoint.x = 0;
SrcPoint.y = 0;
if (EnterLeave->DestRect.left < 0)
{
SrcPoint.x = - EnterLeave->DestRect.left;
EnterLeave->DestRect.left = 0;
}
if (EnterLeave->DestObj->sizlBitmap.cx < EnterLeave->DestRect.right)
{
EnterLeave->DestRect.right = EnterLeave->DestObj->sizlBitmap.cx;
}
if (EnterLeave->DestRect.top < 0)
{
SrcPoint.y = - EnterLeave->DestRect.top;
EnterLeave->DestRect.top = 0;
}
if (EnterLeave->DestObj->sizlBitmap.cy < EnterLeave->DestRect.bottom)
{
EnterLeave->DestRect.bottom = EnterLeave->DestObj->sizlBitmap.cy;
}
if (SrcPoint.x < EnterLeave->OutputObj->sizlBitmap.cx &&
EnterLeave->DestRect.left <= EnterLeave->DestRect.right &&
EnterLeave->DestRect.left < EnterLeave->DestObj->sizlBitmap.cx &&
SrcPoint.y < EnterLeave->OutputObj->sizlBitmap.cy &&
EnterLeave->DestRect.top <= EnterLeave->DestRect.bottom &&
EnterLeave->DestRect.top < EnterLeave->DestObj->sizlBitmap.cy)
{
Result = GDIDEVFUNCS(EnterLeave->DestObj).CopyBits(
EnterLeave->DestObj,
EnterLeave->OutputObj,
EnterLeave->TrivialClipObj, NULL,
&EnterLeave->DestRect, &SrcPoint);
}
else
{
Result = TRUE;
}
}
EngUnlockSurface(EnterLeave->OutputObj);
EngDeleteSurface((HSURF)EnterLeave->OutputBitmap);
EngDeleteClip(EnterLeave->TrivialClipObj);
}
else
{
Result = TRUE;
}
return Result;
}
HANDLE APIENTRY
EngGetProcessHandle(VOID)
{
/* http://www.osr.com/ddk/graphics/gdifncs_3tif.htm
In Windows 2000 and later, the EngGetProcessHandle function always returns NULL.
FIXME: What does NT4 return? */
return NULL;
}
VOID
APIENTRY
EngGetCurrentCodePage(
_Out_ PUSHORT OemCodePage,
_Out_ PUSHORT AnsiCodePage)
{
/* Forward to kernel */
RtlGetDefaultCodePage(AnsiCodePage, OemCodePage);
}
BOOL
APIENTRY
EngQuerySystemAttribute(
_In_ ENG_SYSTEM_ATTRIBUTE CapNum,
_Out_ PDWORD pCapability)
{
SYSTEM_BASIC_INFORMATION sbi;
SYSTEM_PROCESSOR_INFORMATION spi;
NTSTATUS status;
switch (CapNum)
{
case EngNumberOfProcessors:
status = NtQuerySystemInformation(SystemBasicInformation,
&sbi,
sizeof(SYSTEM_BASIC_INFORMATION),
NULL);
if (!NT_SUCCESS(status))
{
DPRINT1("Failed to query basic information: 0x%lx\n", status);
return FALSE;
}
*pCapability = sbi.NumberOfProcessors;
return TRUE;
case EngProcessorFeature:
status = NtQuerySystemInformation(SystemProcessorInformation,
&spi,
sizeof(SYSTEM_PROCESSOR_INFORMATION),
NULL);
if (!NT_SUCCESS(status))
{
DPRINT1("Failed to query processor information: 0x%lx\n", status);
return FALSE;
}
*pCapability = spi.ProcessorFeatureBits;
return TRUE;
default:
break;
}
return FALSE;
}
ULONGLONG
APIENTRY
EngGetTickCount(VOID)
{
ULONG Multiplier;
LARGE_INTEGER TickCount;
/* Get the multiplier and current tick count */
KeQueryTickCount(&TickCount);
Multiplier = SharedUserData->TickCountMultiplier;
/* Convert to milliseconds and return */
return (Int64ShrlMod32(UInt32x32To64(Multiplier, TickCount.LowPart), 24) +
(Multiplier * (TickCount.HighPart << 8)));
}
/* EOF */