614 lines
16 KiB
C
614 lines
16 KiB
C
/*
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*Copyright (C) 1994-2000 The XFree86 Project, Inc. All Rights Reserved.
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*
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*Permission is hereby granted, free of charge, to any person obtaining
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* a copy of this software and associated documentation files (the
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*"Software"), to deal in the Software without restriction, including
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*without limitation the rights to use, copy, modify, merge, publish,
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*distribute, sublicense, and/or sell copies of the Software, and to
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*permit persons to whom the Software is furnished to do so, subject to
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*the following conditions:
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*
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*The above copyright notice and this permission notice shall be
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*included in all copies or substantial portions of the Software.
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*
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*THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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*EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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*MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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*NONINFRINGEMENT. IN NO EVENT SHALL THE XFREE86 PROJECT BE LIABLE FOR
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*ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF
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*CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
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*WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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*
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*Except as contained in this notice, the name of the XFree86 Project
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*shall not be used in advertising or otherwise to promote the sale, use
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*or other dealings in this Software without prior written authorization
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*from the XFree86 Project.
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*
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* Authors: Dakshinamurthy Karra
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* Suhaib M Siddiqi
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* Peter Busch
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* Harold L Hunt II
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*/
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#ifdef HAVE_XWIN_CONFIG_H
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#include <xwin-config.h>
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#endif
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#include "win.h"
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#include "winmsg.h"
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#include <cursorstr.h>
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#include <mipointrst.h>
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#include <servermd.h>
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extern Bool g_fSoftwareCursor;
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#ifndef MIN
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#define MIN(x,y) ((x)<(y)?(x):(y))
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#endif
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#define BYTE_COUNT(x) (((x) + 7) / 8)
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#define BRIGHTNESS(x) (x##Red * 0.299 + x##Green * 0.587 + x##Blue * 0.114)
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#if 0
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# define WIN_DEBUG_MSG winDebug
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#else
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# define WIN_DEBUG_MSG(...)
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#endif
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/*
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* Local function prototypes
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*/
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static void
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winPointerWarpCursor (ScreenPtr pScreen, int x, int y);
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static Bool
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winCursorOffScreen (ScreenPtr *ppScreen, int *x, int *y);
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static void
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winCrossScreen (ScreenPtr pScreen, Bool fEntering);
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miPointerScreenFuncRec g_winPointerCursorFuncs =
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{
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winCursorOffScreen,
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winCrossScreen,
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winPointerWarpCursor
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};
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static void
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winPointerWarpCursor (ScreenPtr pScreen, int x, int y)
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{
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winScreenPriv(pScreen);
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RECT rcClient;
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static Bool s_fInitialWarp = TRUE;
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/* Discard first warp call */
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if (s_fInitialWarp)
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{
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/* First warp moves mouse to center of window, just ignore it */
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/* Don't ignore subsequent warps */
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s_fInitialWarp = FALSE;
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winErrorFVerb (2, "winPointerWarpCursor - Discarding first warp: %d %d\n",
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x, y);
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return;
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}
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/* Only update the Windows cursor position if we are active */
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if (pScreenPriv->hwndScreen == GetForegroundWindow ())
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{
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/* Get the client area coordinates */
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GetClientRect (pScreenPriv->hwndScreen, &rcClient);
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/* Translate the client area coords to screen coords */
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MapWindowPoints (pScreenPriv->hwndScreen,
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HWND_DESKTOP,
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(LPPOINT)&rcClient,
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2);
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/*
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* Update the Windows cursor position so that we don't
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* immediately warp back to the current position.
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*/
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SetCursorPos (rcClient.left + x, rcClient.top + y);
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}
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/* Call the mi warp procedure to do the actual warping in X. */
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miPointerWarpCursor (pScreen, x, y);
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}
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static Bool
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winCursorOffScreen (ScreenPtr *ppScreen, int *x, int *y)
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{
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return FALSE;
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}
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static void
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winCrossScreen (ScreenPtr pScreen, Bool fEntering)
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{
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}
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static unsigned char
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reverse(unsigned char c)
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{
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int i;
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unsigned char ret = 0;
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for (i = 0; i < 8; ++i)
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{
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ret |= ((c >> i)&1) << (7 - i);
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}
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return ret;
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}
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/*
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* Convert X cursor to Windows cursor
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* FIXME: Perhaps there are more smart code
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*/
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static HCURSOR
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winLoadCursor (ScreenPtr pScreen, CursorPtr pCursor, int screen)
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{
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winScreenPriv(pScreen);
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HCURSOR hCursor = NULL;
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unsigned char *pAnd;
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unsigned char *pXor;
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int nCX, nCY;
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int nBytes;
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double dForeY, dBackY;
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BOOL fReverse;
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HBITMAP hAnd, hXor;
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ICONINFO ii;
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unsigned char *pCur;
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int x, y;
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unsigned char bit;
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HDC hDC;
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BITMAPV4HEADER bi;
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BITMAPINFO *pbmi;
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unsigned long *lpBits;
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WIN_DEBUG_MSG("winLoadCursor: Win32: %dx%d X11: %dx%d hotspot: %d,%d\n",
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pScreenPriv->cursor.sm_cx, pScreenPriv->cursor.sm_cy,
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pCursor->bits->width, pCursor->bits->height,
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pCursor->bits->xhot, pCursor->bits->yhot
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);
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/* We can use only White and Black, so calc brightness of color
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* Also check if the cursor is inverted */
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dForeY = BRIGHTNESS(pCursor->fore);
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dBackY = BRIGHTNESS(pCursor->back);
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fReverse = dForeY < dBackY;
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/* Check wether the X11 cursor is bigger than the win32 cursor */
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if (pScreenPriv->cursor.sm_cx < pCursor->bits->width ||
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pScreenPriv->cursor.sm_cy < pCursor->bits->height)
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{
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winErrorFVerb (2, "winLoadCursor - Windows requires %dx%d cursor\n"
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"\tbut X requires %dx%d\n",
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pScreenPriv->cursor.sm_cx, pScreenPriv->cursor.sm_cy,
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pCursor->bits->width, pCursor->bits->height);
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}
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/* Get the number of bytes required to store the whole cursor image
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* This is roughly (sm_cx * sm_cy) / 8
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* round up to 8 pixel boundary so we can convert whole bytes */
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nBytes = BYTE_COUNT(pScreenPriv->cursor.sm_cx) * pScreenPriv->cursor.sm_cy;
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/* Get the effective width and height */
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nCX = MIN(pScreenPriv->cursor.sm_cx, pCursor->bits->width);
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nCY = MIN(pScreenPriv->cursor.sm_cy, pCursor->bits->height);
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/* Allocate memory for the bitmaps */
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pAnd = malloc (nBytes);
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memset (pAnd, 0xFF, nBytes);
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pXor = calloc (1, nBytes);
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/* Convert the X11 bitmap to a win32 bitmap
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* The first is for an empty mask */
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if (pCursor->bits->emptyMask)
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{
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int x, y, xmax = BYTE_COUNT(nCX);
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for (y = 0; y < nCY; ++y)
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for (x = 0; x < xmax; ++x)
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{
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int nWinPix = BYTE_COUNT(pScreenPriv->cursor.sm_cx) * y + x;
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int nXPix = BitmapBytePad(pCursor->bits->width) * y + x;
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pAnd[nWinPix] = 0;
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if (fReverse)
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pXor[nWinPix] = reverse (~pCursor->bits->source[nXPix]);
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else
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pXor[nWinPix] = reverse (pCursor->bits->source[nXPix]);
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}
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}
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else
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{
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int x, y, xmax = BYTE_COUNT(nCX);
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for (y = 0; y < nCY; ++y)
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for (x = 0; x < xmax; ++x)
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{
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int nWinPix = BYTE_COUNT(pScreenPriv->cursor.sm_cx) * y + x;
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int nXPix = BitmapBytePad(pCursor->bits->width) * y + x;
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unsigned char mask = pCursor->bits->mask[nXPix];
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pAnd[nWinPix] = reverse (~mask);
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if (fReverse)
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pXor[nWinPix] = reverse (~pCursor->bits->source[nXPix] & mask);
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else
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pXor[nWinPix] = reverse (pCursor->bits->source[nXPix] & mask);
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}
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}
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/* prepare the pointers */
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hCursor = NULL;
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lpBits = NULL;
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/* We have a truecolor alpha-blended cursor and can use it! */
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if (pCursor->bits->argb)
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{
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WIN_DEBUG_MSG("winLoadCursor: Trying truecolor alphablended cursor\n");
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memset (&bi, 0, sizeof (BITMAPV4HEADER));
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bi.bV4Size = sizeof(BITMAPV4HEADER);
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bi.bV4Width = pScreenPriv->cursor.sm_cx;
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bi.bV4Height = -(pScreenPriv->cursor.sm_cy); /* right-side up */
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bi.bV4Planes = 1;
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bi.bV4BitCount = 32;
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bi.bV4V4Compression = BI_BITFIELDS;
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bi.bV4RedMask = 0x00FF0000;
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bi.bV4GreenMask = 0x0000FF00;
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bi.bV4BlueMask = 0x000000FF;
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bi.bV4AlphaMask = 0xFF000000;
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lpBits = (unsigned long *) calloc (pScreenPriv->cursor.sm_cx*pScreenPriv->cursor.sm_cy,
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sizeof (unsigned long));
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if (lpBits)
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{
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for (y=0; y<nCY; y++)
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{
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unsigned long *src, *dst;
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src = &(pCursor->bits->argb[y * pCursor->bits->width]);
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dst = &(lpBits[y * pScreenPriv->cursor.sm_cx]);
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memcpy (dst, src, 4*nCX);
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}
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}
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} /* End if-truecolor-icon */
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if (!lpBits)
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{
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/* Bicolor, use a palettized DIB */
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WIN_DEBUG_MSG("winLoadCursor: Trying two color cursor\n");
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pbmi = (BITMAPINFO*)&bi;
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memset (pbmi, 0, sizeof (BITMAPINFOHEADER));
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pbmi->bmiHeader.biSize = sizeof(BITMAPINFOHEADER);
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pbmi->bmiHeader.biWidth = pScreenPriv->cursor.sm_cx;
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pbmi->bmiHeader.biHeight = -abs(pScreenPriv->cursor.sm_cy); /* right-side up */
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pbmi->bmiHeader.biPlanes = 1;
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pbmi->bmiHeader.biBitCount = 8;
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pbmi->bmiHeader.biCompression = BI_RGB;
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pbmi->bmiHeader.biSizeImage = 0;
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pbmi->bmiHeader.biClrUsed = 3;
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pbmi->bmiHeader.biClrImportant = 3;
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pbmi->bmiColors[0].rgbRed = 0; /* Empty */
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pbmi->bmiColors[0].rgbGreen = 0;
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pbmi->bmiColors[0].rgbBlue = 0;
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pbmi->bmiColors[0].rgbReserved = 0;
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pbmi->bmiColors[1].rgbRed = pCursor->backRed>>8; /* Background */
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pbmi->bmiColors[1].rgbGreen = pCursor->backGreen>>8;
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pbmi->bmiColors[1].rgbBlue = pCursor->backBlue>>8;
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pbmi->bmiColors[1].rgbReserved = 0;
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pbmi->bmiColors[2].rgbRed = pCursor->foreRed>>8; /* Foreground */
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pbmi->bmiColors[2].rgbGreen = pCursor->foreGreen>>8;
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pbmi->bmiColors[2].rgbBlue = pCursor->foreBlue>>8;
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pbmi->bmiColors[2].rgbReserved = 0;
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lpBits = (unsigned long *) calloc (pScreenPriv->cursor.sm_cx*pScreenPriv->cursor.sm_cy,
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sizeof (char));
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pCur = (unsigned char *)lpBits;
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if (lpBits)
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{
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for (y=0; y<pScreenPriv->cursor.sm_cy; y++)
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{
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for (x=0; x<pScreenPriv->cursor.sm_cx; x++)
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{
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if (x>=nCX || y>=nCY) /* Outside of X11 icon bounds */
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(*pCur++) = 0;
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else /* Within X11 icon bounds */
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{
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int nWinPix = BYTE_COUNT(pScreenPriv->cursor.sm_cx) * y + (x/8);
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bit = pAnd[nWinPix];
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bit = bit & (1<<(7-(x&7)));
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if (!bit) /* Within the cursor mask? */
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{
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int nXPix = BitmapBytePad(pCursor->bits->width) * y + (x/8);
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bit = ~reverse(~pCursor->bits->source[nXPix] & pCursor->bits->mask[nXPix]);
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bit = bit & (1<<(7-(x&7)));
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if (bit) /* Draw foreground */
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(*pCur++) = 2;
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else /* Draw background */
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(*pCur++) = 1;
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}
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else /* Outside the cursor mask */
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(*pCur++) = 0;
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}
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} /* end for (x) */
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} /* end for (y) */
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} /* end if (lpbits) */
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}
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/* If one of the previous two methods gave us the bitmap we need, make a cursor */
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if (lpBits)
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{
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WIN_DEBUG_MSG("winLoadCursor: Creating bitmap cursor: hotspot %d,%d\n",
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pCursor->bits->xhot, pCursor->bits->yhot);
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hAnd = NULL;
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hXor = NULL;
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hAnd = CreateBitmap (pScreenPriv->cursor.sm_cx, pScreenPriv->cursor.sm_cy, 1, 1, pAnd);
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hDC = GetDC (NULL);
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if (hDC)
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{
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hXor = CreateCompatibleBitmap (hDC, pScreenPriv->cursor.sm_cx, pScreenPriv->cursor.sm_cy);
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SetDIBits (hDC, hXor, 0, pScreenPriv->cursor.sm_cy, lpBits, (BITMAPINFO*)&bi, DIB_RGB_COLORS);
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ReleaseDC (NULL, hDC);
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}
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free (lpBits);
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if (hAnd && hXor)
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{
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ii.fIcon = FALSE;
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ii.xHotspot = pCursor->bits->xhot;
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ii.yHotspot = pCursor->bits->yhot;
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ii.hbmMask = hAnd;
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ii.hbmColor = hXor;
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hCursor = (HCURSOR) CreateIconIndirect( &ii );
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if (hCursor == NULL)
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winW32Error(2, "winLoadCursor - CreateIconIndirect failed:");
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else
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{
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if (GetIconInfo(hCursor, &ii))
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{
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if (ii.fIcon)
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{
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WIN_DEBUG_MSG("winLoadCursor: CreateIconIndirect returned no cursor. Trying again.\n");
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DestroyCursor(hCursor);
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ii.fIcon = FALSE;
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ii.xHotspot = pCursor->bits->xhot;
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ii.yHotspot = pCursor->bits->yhot;
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hCursor = (HCURSOR) CreateIconIndirect( &ii );
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if (hCursor == NULL)
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winW32Error(2, "winLoadCursor - CreateIconIndirect failed:");
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}
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/* GetIconInfo creates new bitmaps. Destroy them again */
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if (ii.hbmMask)
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DeleteObject(ii.hbmMask);
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if (ii.hbmColor)
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DeleteObject(ii.hbmColor);
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}
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}
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}
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if (hAnd)
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DeleteObject (hAnd);
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if (hXor)
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DeleteObject (hXor);
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}
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if (!hCursor)
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{
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/* We couldn't make a color cursor for this screen, use
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black and white instead */
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hCursor = CreateCursor (g_hInstance,
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pCursor->bits->xhot, pCursor->bits->yhot,
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pScreenPriv->cursor.sm_cx, pScreenPriv->cursor.sm_cy,
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pAnd, pXor);
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if (hCursor == NULL)
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winW32Error(2, "winLoadCursor - CreateCursor failed:");
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}
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free (pAnd);
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free (pXor);
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return hCursor;
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}
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/*
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===========================================================================
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Pointer sprite functions
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===========================================================================
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*/
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/*
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* winRealizeCursor
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* Convert the X cursor representation to native format if possible.
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*/
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static Bool
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winRealizeCursor (ScreenPtr pScreen, CursorPtr pCursor)
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{
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if(pCursor == NULL || pCursor->bits == NULL)
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return FALSE;
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/* FIXME: cache ARGB8888 representation? */
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return TRUE;
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}
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/*
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* winUnrealizeCursor
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* Free the storage space associated with a realized cursor.
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*/
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static Bool
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winUnrealizeCursor(ScreenPtr pScreen, CursorPtr pCursor)
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{
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return TRUE;
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}
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/*
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* winSetCursor
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* Set the cursor sprite and position.
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*/
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static void
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winSetCursor (ScreenPtr pScreen, CursorPtr pCursor, int x, int y)
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{
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POINT ptCurPos, ptTemp;
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HWND hwnd;
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RECT rcClient;
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BOOL bInhibit;
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winScreenPriv(pScreen);
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WIN_DEBUG_MSG("winSetCursor: cursor=%p\n", pCursor);
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/* Inhibit changing the cursor if the mouse is not in a client area */
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bInhibit = FALSE;
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if (GetCursorPos (&ptCurPos))
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{
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hwnd = WindowFromPoint (ptCurPos);
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if (hwnd)
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{
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if (GetClientRect (hwnd, &rcClient))
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{
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ptTemp.x = rcClient.left;
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ptTemp.y = rcClient.top;
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if (ClientToScreen (hwnd, &ptTemp))
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{
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rcClient.left = ptTemp.x;
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rcClient.top = ptTemp.y;
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ptTemp.x = rcClient.right;
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ptTemp.y = rcClient.bottom;
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if (ClientToScreen (hwnd, &ptTemp))
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{
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rcClient.right = ptTemp.x;
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rcClient.bottom = ptTemp.y;
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if (!PtInRect (&rcClient, ptCurPos))
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bInhibit = TRUE;
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}
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}
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}
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}
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}
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if (pCursor == NULL)
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{
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if (pScreenPriv->cursor.visible)
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{
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if (!bInhibit && g_fSoftwareCursor)
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ShowCursor (FALSE);
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pScreenPriv->cursor.visible = FALSE;
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}
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}
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else
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{
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if (pScreenPriv->cursor.handle)
|
|
{
|
|
if (!bInhibit)
|
|
SetCursor (NULL);
|
|
DestroyCursor (pScreenPriv->cursor.handle);
|
|
pScreenPriv->cursor.handle = NULL;
|
|
}
|
|
pScreenPriv->cursor.handle =
|
|
winLoadCursor (pScreen, pCursor, pScreen->myNum);
|
|
WIN_DEBUG_MSG("winSetCursor: handle=%p\n", pScreenPriv->cursor.handle);
|
|
|
|
if (!bInhibit)
|
|
SetCursor (pScreenPriv->cursor.handle);
|
|
|
|
if (!pScreenPriv->cursor.visible)
|
|
{
|
|
if (!bInhibit && g_fSoftwareCursor)
|
|
ShowCursor (TRUE);
|
|
pScreenPriv->cursor.visible = TRUE;
|
|
}
|
|
}
|
|
}
|
|
|
|
|
|
/*
|
|
* QuartzMoveCursor
|
|
* Move the cursor. This is a noop for us.
|
|
*/
|
|
static void
|
|
winMoveCursor (ScreenPtr pScreen, int x, int y)
|
|
{
|
|
}
|
|
|
|
|
|
static miPointerSpriteFuncRec winSpriteFuncsRec = {
|
|
winRealizeCursor,
|
|
winUnrealizeCursor,
|
|
winSetCursor,
|
|
winMoveCursor
|
|
};
|
|
|
|
|
|
/*
|
|
===========================================================================
|
|
|
|
Other screen functions
|
|
|
|
===========================================================================
|
|
*/
|
|
|
|
/*
|
|
* winCursorQueryBestSize
|
|
* Handle queries for best cursor size
|
|
*/
|
|
static void
|
|
winCursorQueryBestSize (int class, unsigned short *width,
|
|
unsigned short *height, ScreenPtr pScreen)
|
|
{
|
|
winScreenPriv(pScreen);
|
|
|
|
if (class == CursorShape)
|
|
{
|
|
*width = pScreenPriv->cursor.sm_cx;
|
|
*height = pScreenPriv->cursor.sm_cy;
|
|
}
|
|
else
|
|
{
|
|
if (pScreenPriv->cursor.QueryBestSize)
|
|
(*pScreenPriv->cursor.QueryBestSize)(class, width, height, pScreen);
|
|
}
|
|
}
|
|
|
|
/*
|
|
* winInitCursor
|
|
* Initialize cursor support
|
|
*/
|
|
Bool
|
|
winInitCursor (ScreenPtr pScreen)
|
|
{
|
|
winScreenPriv(pScreen);
|
|
miPointerScreenPtr pPointPriv;
|
|
/* override some screen procedures */
|
|
pScreenPriv->cursor.QueryBestSize = pScreen->QueryBestSize;
|
|
pScreen->QueryBestSize = winCursorQueryBestSize;
|
|
|
|
pPointPriv = (miPointerScreenPtr)
|
|
dixLookupPrivate(&pScreen->devPrivates, miPointerScreenKey);
|
|
|
|
pScreenPriv->cursor.spriteFuncs = pPointPriv->spriteFuncs;
|
|
pPointPriv->spriteFuncs = &winSpriteFuncsRec;
|
|
|
|
pScreenPriv->cursor.handle = NULL;
|
|
pScreenPriv->cursor.visible = FALSE;
|
|
|
|
pScreenPriv->cursor.sm_cx = GetSystemMetrics (SM_CXCURSOR);
|
|
pScreenPriv->cursor.sm_cy = GetSystemMetrics (SM_CYCURSOR);
|
|
|
|
return TRUE;
|
|
}
|