--- /dev/null
+/*
+ * PROJECT: ReactOS Framebuffer Display Driver
+ * LICENSE: Microsoft NT4 DDK Sample Code License
+ * FILE: boot/drivers/video/displays/framebuf/pointer.c
+ * PURPOSE: Hardware Pointer Support
+ * PROGRAMMERS: Copyright (c) 1992-1995 Microsoft Corporation
+ */
+
+#include "driver.h"
+
+BOOL bCopyColorPointer(
+PPDEV ppdev,
+SURFOBJ *psoMask,
+SURFOBJ *psoColor,
+XLATEOBJ *pxlo);
+
+BOOL bCopyMonoPointer(
+PPDEV ppdev,
+SURFOBJ *psoMask);
+
+BOOL bSetHardwarePointerShape(
+SURFOBJ *pso,
+SURFOBJ *psoMask,
+SURFOBJ *psoColor,
+XLATEOBJ *pxlo,
+LONG x,
+LONG y,
+FLONG fl);
+
+/******************************Public*Routine******************************\
+* DrvMovePointer
+*
+* Moves the hardware pointer to a new position.
+*
+\**************************************************************************/
+
+VOID DrvMovePointer
+(
+ SURFOBJ *pso,
+ LONG x,
+ LONG y,
+ RECTL *prcl
+)
+{
+ PPDEV ppdev = (PPDEV) pso->dhpdev;
+ DWORD returnedDataLength;
+ VIDEO_POINTER_POSITION NewPointerPosition;
+
+ // We don't use the exclusion rectangle because we only support
+ // hardware Pointers. If we were doing our own Pointer simulations
+ // we would want to update prcl so that the engine would call us
+ // to exclude out pointer before drawing to the pixels in prcl.
+
+ UNREFERENCED_PARAMETER(prcl);
+
+ if (x == -1)
+ {
+ //
+ // A new position of (-1,-1) means hide the pointer.
+ //
+
+ if (EngDeviceIoControl(ppdev->hDriver,
+ IOCTL_VIDEO_DISABLE_POINTER,
+ NULL,
+ 0,
+ NULL,
+ 0,
+ &returnedDataLength))
+ {
+ //
+ // Not the end of the world, print warning in checked build.
+ //
+
+ DISPDBG((1, "DISP vMoveHardwarePointer failed IOCTL_VIDEO_DISABLE_POINTER\n"));
+ }
+ }
+ else
+ {
+ NewPointerPosition.Column = (SHORT) x - (SHORT) (ppdev->ptlHotSpot.x);
+ NewPointerPosition.Row = (SHORT) y - (SHORT) (ppdev->ptlHotSpot.y);
+
+ //
+ // Call miniport driver to move Pointer.
+ //
+
+ if (EngDeviceIoControl(ppdev->hDriver,
+ IOCTL_VIDEO_SET_POINTER_POSITION,
+ &NewPointerPosition,
+ sizeof(VIDEO_POINTER_POSITION),
+ NULL,
+ 0,
+ &returnedDataLength))
+ {
+ //
+ // Not the end of the world, print warning in checked build.
+ //
+
+ DISPDBG((1, "DISP vMoveHardwarePointer failed IOCTL_VIDEO_SET_POINTER_POSITION\n"));
+ }
+ }
+}
+
+/******************************Public*Routine******************************\
+* DrvSetPointerShape
+*
+* Sets the new pointer shape.
+*
+\**************************************************************************/
+
+ULONG DrvSetPointerShape
+(
+ SURFOBJ *pso,
+ SURFOBJ *psoMask,
+ SURFOBJ *psoColor,
+ XLATEOBJ *pxlo,
+ LONG xHot,
+ LONG yHot,
+ LONG x,
+ LONG y,
+ RECTL *prcl,
+ FLONG fl
+)
+{
+ PPDEV ppdev = (PPDEV) pso->dhpdev;
+ DWORD returnedDataLength;
+
+ // We don't use the exclusion rectangle because we only support
+ // hardware Pointers. If we were doing our own Pointer simulations
+ // we would want to update prcl so that the engine would call us
+ // to exclude out pointer before drawing to the pixels in prcl.
+ UNREFERENCED_PARAMETER(prcl);
+
+ if (ppdev->pPointerAttributes == (PVIDEO_POINTER_ATTRIBUTES) NULL)
+ {
+ // Mini-port has no hardware Pointer support.
+ return(SPS_ERROR);
+ }
+
+ // See if we are being asked to hide the pointer
+
+ if (psoMask == (SURFOBJ *) NULL)
+ {
+ if (EngDeviceIoControl(ppdev->hDriver,
+ IOCTL_VIDEO_DISABLE_POINTER,
+ NULL,
+ 0,
+ NULL,
+ 0,
+ &returnedDataLength))
+ {
+ //
+ // It should never be possible to fail.
+ // Message supplied for debugging.
+ //
+
+ DISPDBG((1, "DISP bSetHardwarePointerShape failed IOCTL_VIDEO_DISABLE_POINTER\n"));
+ }
+
+ return(TRUE);
+ }
+
+ ppdev->ptlHotSpot.x = xHot;
+ ppdev->ptlHotSpot.y = yHot;
+
+ if (!bSetHardwarePointerShape(pso,psoMask,psoColor,pxlo,x,y,fl))
+ {
+ if (ppdev->fHwCursorActive) {
+ ppdev->fHwCursorActive = FALSE;
+
+ if (EngDeviceIoControl(ppdev->hDriver,
+ IOCTL_VIDEO_DISABLE_POINTER,
+ NULL,
+ 0,
+ NULL,
+ 0,
+ &returnedDataLength)) {
+
+ DISPDBG((1, "DISP bSetHardwarePointerShape failed IOCTL_VIDEO_DISABLE_POINTER\n"));
+ }
+ }
+
+ //
+ // Mini-port declines to realize this Pointer
+ //
+
+ return(SPS_DECLINE);
+ }
+ else
+ {
+ ppdev->fHwCursorActive = TRUE;
+ }
+
+ return(SPS_ACCEPT_NOEXCLUDE);
+}
+
+/******************************Public*Routine******************************\
+* bSetHardwarePointerShape
+*
+* Changes the shape of the Hardware Pointer.
+*
+* Returns: True if successful, False if Pointer shape can't be hardware.
+*
+\**************************************************************************/
+
+BOOL bSetHardwarePointerShape(
+SURFOBJ *pso,
+SURFOBJ *psoMask,
+SURFOBJ *psoColor,
+XLATEOBJ *pxlo,
+LONG x,
+LONG y,
+FLONG fl)
+{
+ PPDEV ppdev = (PPDEV) pso->dhpdev;
+ PVIDEO_POINTER_ATTRIBUTES pPointerAttributes = ppdev->pPointerAttributes;
+ DWORD returnedDataLength;
+
+ if (psoColor != (SURFOBJ *) NULL)
+ {
+ if ((ppdev->PointerCapabilities.Flags & VIDEO_MODE_COLOR_POINTER) &&
+ bCopyColorPointer(ppdev, psoMask, psoColor, pxlo))
+ {
+ pPointerAttributes->Flags |= VIDEO_MODE_COLOR_POINTER;
+ } else {
+ return(FALSE);
+ }
+
+ } else {
+
+ if ((ppdev->PointerCapabilities.Flags & VIDEO_MODE_MONO_POINTER) &&
+ bCopyMonoPointer(ppdev, psoMask))
+ {
+ pPointerAttributes->Flags |= VIDEO_MODE_MONO_POINTER;
+ } else {
+ return(FALSE);
+ }
+ }
+
+ //
+ // Initialize Pointer attributes and position
+ //
+
+ pPointerAttributes->Enable = 1;
+
+ //
+ // if x,y = -1,-1 then pass them directly to the miniport so that
+ // the cursor will be disabled
+
+ pPointerAttributes->Column = (SHORT)(x);
+ pPointerAttributes->Row = (SHORT)(y);
+
+ if ((x != -1) || (y != -1)) {
+ pPointerAttributes->Column -= (SHORT)(ppdev->ptlHotSpot.x);
+ pPointerAttributes->Row -= (SHORT)(ppdev->ptlHotSpot.y);
+ }
+
+ //
+ // set animate flags
+ //
+
+ if (fl & SPS_ANIMATESTART) {
+ pPointerAttributes->Flags |= VIDEO_MODE_ANIMATE_START;
+ } else if (fl & SPS_ANIMATEUPDATE) {
+ pPointerAttributes->Flags |= VIDEO_MODE_ANIMATE_UPDATE;
+ }
+
+ //
+ // Set the new Pointer shape.
+ //
+
+ if (EngDeviceIoControl(ppdev->hDriver,
+ IOCTL_VIDEO_SET_POINTER_ATTR,
+ pPointerAttributes,
+ ppdev->cjPointerAttributes,
+ NULL,
+ 0,
+ &returnedDataLength)) {
+
+ DISPDBG((1, "DISP:Failed IOCTL_VIDEO_SET_POINTER_ATTR call\n"));
+ return(FALSE);
+ }
+
+ return(TRUE);
+}
+
+/******************************Public*Routine******************************\
+* bCopyMonoPointer
+*
+* Copies two monochrome masks into a buffer of the maximum size handled by the
+* miniport, with any extra bits set to 0. The masks are converted to topdown
+* form if they aren't already. Returns TRUE if we can handle this pointer in
+* hardware, FALSE if not.
+*
+\**************************************************************************/
+
+BOOL bCopyMonoPointer(
+ PPDEV ppdev,
+ SURFOBJ *pso)
+{
+ ULONG cy;
+ PBYTE pjSrcAnd, pjSrcXor;
+ LONG lDeltaSrc, lDeltaDst;
+ LONG lSrcWidthInBytes;
+ ULONG cxSrc = pso->sizlBitmap.cx;
+ ULONG cySrc = pso->sizlBitmap.cy;
+ ULONG cxSrcBytes;
+ PVIDEO_POINTER_ATTRIBUTES pPointerAttributes = ppdev->pPointerAttributes;
+ PBYTE pjDstAnd = pPointerAttributes->Pixels;
+ PBYTE pjDstXor = pPointerAttributes->Pixels;
+
+ // Make sure the new pointer isn't too big to handle
+ // (*2 because both masks are in there)
+ if ((cxSrc > ppdev->PointerCapabilities.MaxWidth) ||
+ (cySrc > (ppdev->PointerCapabilities.MaxHeight * 2)))
+ {
+ return(FALSE);
+ }
+
+ pjDstXor += ((ppdev->PointerCapabilities.MaxWidth + 7) / 8) *
+ ppdev->pPointerAttributes->Height;
+
+ // set the desk and mask to 0xff
+ RtlFillMemory(pjDstAnd, ppdev->pPointerAttributes->WidthInBytes *
+ ppdev->pPointerAttributes->Height, 0xFF);
+
+ // Zero the dest XOR mask
+ RtlZeroMemory(pjDstXor, ppdev->pPointerAttributes->WidthInBytes *
+ ppdev->pPointerAttributes->Height);
+
+ cxSrcBytes = (cxSrc + 7) / 8;
+
+ if ((lDeltaSrc = pso->lDelta) < 0)
+ {
+ lSrcWidthInBytes = -lDeltaSrc;
+ } else {
+ lSrcWidthInBytes = lDeltaSrc;
+ }
+
+ pjSrcAnd = (PBYTE) pso->pvBits;
+
+ // If the incoming pointer bitmap is bottomup, we'll flip it to topdown to
+ // save the miniport some work
+ if (!(pso->fjBitmap & BMF_TOPDOWN))
+ {
+ // Copy from the bottom
+ pjSrcAnd += lSrcWidthInBytes * (cySrc - 1);
+ }
+
+ // Height of just AND mask
+ cySrc = cySrc / 2;
+
+ // Point to XOR mask
+ pjSrcXor = pjSrcAnd + (cySrc * lDeltaSrc);
+
+ // Offset from end of one dest scan to start of next
+ lDeltaDst = ppdev->pPointerAttributes->WidthInBytes;
+
+ for (cy = 0; cy < cySrc; ++cy)
+ {
+ RtlCopyMemory(pjDstAnd, pjSrcAnd, cxSrcBytes);
+ RtlCopyMemory(pjDstXor, pjSrcXor, cxSrcBytes);
+
+ // Point to next source and dest scans
+ pjSrcAnd += lDeltaSrc;
+ pjSrcXor += lDeltaSrc;
+ pjDstAnd += lDeltaDst;
+ pjDstXor += lDeltaDst;
+ }
+
+ return(TRUE);
+}
+
+/******************************Public*Routine******************************\
+* bCopyColorPointer
+*
+* Copies the mono and color masks into the buffer of maximum size
+* handled by the miniport with any extra bits set to 0. Color translation
+* is handled at this time. The masks are converted to topdown form if they
+* aren't already. Returns TRUE if we can handle this pointer in hardware,
+* FALSE if not.
+*
+\**************************************************************************/
+BOOL bCopyColorPointer(
+PPDEV ppdev,
+SURFOBJ *psoMask,
+SURFOBJ *psoColor,
+XLATEOBJ *pxlo)
+{
+ return(FALSE);
+}
+
+
+/******************************Public*Routine******************************\
+* bInitPointer
+*
+* Initialize the Pointer attributes.
+*
+\**************************************************************************/
+
+BOOL bInitPointer(PPDEV ppdev, DEVINFO *pdevinfo)
+{
+ DWORD returnedDataLength;
+
+ ppdev->pPointerAttributes = (PVIDEO_POINTER_ATTRIBUTES) NULL;
+ ppdev->cjPointerAttributes = 0; // initialized in screen.c
+
+ //
+ // Ask the miniport whether it provides pointer support.
+ //
+
+ if (EngDeviceIoControl(ppdev->hDriver,
+ IOCTL_VIDEO_QUERY_POINTER_CAPABILITIES,
+ &ppdev->ulMode,
+ sizeof(PVIDEO_MODE),
+ &ppdev->PointerCapabilities,
+ sizeof(ppdev->PointerCapabilities),
+ &returnedDataLength))
+ {
+ return(FALSE);
+ }
+
+ //
+ // If neither mono nor color hardware pointer is supported, there's no
+ // hardware pointer support and we're done.
+ //
+
+ if ((!(ppdev->PointerCapabilities.Flags & VIDEO_MODE_MONO_POINTER)) &&
+ (!(ppdev->PointerCapabilities.Flags & VIDEO_MODE_COLOR_POINTER)))
+ {
+ return(TRUE);
+ }
+
+ //
+ // Note: The buffer itself is allocated after we set the
+ // mode. At that time we know the pixel depth and we can
+ // allocate the correct size for the color pointer if supported.
+ //
+
+ //
+ // Set the asynchronous support status (async means miniport is capable of
+ // drawing the Pointer at any time, with no interference with any ongoing
+ // drawing operation)
+ //
+
+ if (ppdev->PointerCapabilities.Flags & VIDEO_MODE_ASYNC_POINTER)
+ {
+ pdevinfo->flGraphicsCaps |= GCAPS_ASYNCMOVE;
+ }
+ else
+ {
+ pdevinfo->flGraphicsCaps &= ~GCAPS_ASYNCMOVE;
+ }
+
+ return(TRUE);
+}
projects / reactos.git / blobdiff