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Diffstat (limited to 'hw/xwin/wincursor.c')
-rw-r--r--hw/xwin/wincursor.c521
1 files changed, 517 insertions, 4 deletions
diff --git a/hw/xwin/wincursor.c b/hw/xwin/wincursor.c
index 9e053a7d2..40ffe7364 100644
--- a/hw/xwin/wincursor.c
+++ b/hw/xwin/wincursor.c
@@ -33,6 +33,38 @@
/* $XFree86: xc/programs/Xserver/hw/xwin/wincursor.c,v 1.5 2002/07/05 09:19:26 alanh Exp $ */
#include "win.h"
+#include "winmsg.h"
+#include <cursorstr.h>
+#include <mipointrst.h>
+#include <servermd.h>
+
+
+#ifndef MIN
+#define MIN(x,y) ((x)<(y)?(x):(y))
+#endif
+
+#define BYTE_COUNT(x) (((x) + 7) / 8)
+
+#define BRIGHTNESS(x) (x##Red * 0.299 + x##Green * 0.587 + x##Blue * 0.114)
+
+#if 0
+# define WIN_DEBUG_MSG winDebug
+#else
+# define WIN_DEBUG_MSG(...)
+#endif
+
+/*
+ * Local function prototypes
+ */
+
+static void
+winPointerWarpCursor (ScreenPtr pScreen, int x, int y);
+
+static Bool
+winCursorOffScreen (ScreenPtr *ppScreen, int *x, int *y);
+
+static void
+winCrossScreen (ScreenPtr pScreen, Bool fEntering);
miPointerScreenFuncRec g_winPointerCursorFuncs =
{
@@ -42,7 +74,7 @@ miPointerScreenFuncRec g_winPointerCursorFuncs =
};
-void
+static void
winPointerWarpCursor (ScreenPtr pScreen, int x, int y)
{
winScreenPriv(pScreen);
@@ -57,7 +89,7 @@ winPointerWarpCursor (ScreenPtr pScreen, int x, int y)
/* Don't ignore subsequent warps */
s_fInitialWarp = FALSE;
- ErrorF ("winPointerWarpCursor - Discarding first warp: %d %d\n",
+ winErrorFVerb (2, "winPointerWarpCursor - Discarding first warp: %d %d\n",
x, y);
return;
@@ -86,14 +118,495 @@ winPointerWarpCursor (ScreenPtr pScreen, int x, int y)
miPointerWarpCursor (pScreen, x, y);
}
-Bool
+static Bool
winCursorOffScreen (ScreenPtr *ppScreen, int *x, int *y)
{
return FALSE;
}
-void
+static void
winCrossScreen (ScreenPtr pScreen, Bool fEntering)
{
}
+static unsigned char
+reverse(unsigned char c)
+{
+ int i;
+ unsigned char ret = 0;
+ for (i = 0; i < 8; ++i)
+ {
+ ret |= ((c >> i)&1) << (7 - i);
+ }
+ return ret;
+}
+
+/*
+ * Convert X cursor to Windows cursor
+ * FIXME: Perhaps there are more smart code
+ */
+static HCURSOR
+winLoadCursor (ScreenPtr pScreen, CursorPtr pCursor, int screen)
+{
+ winScreenPriv(pScreen);
+ HCURSOR hCursor = NULL;
+ unsigned char *pAnd;
+ unsigned char *pXor;
+ int nCX, nCY;
+ int nBytes;
+ double dForeY, dBackY;
+ BOOL fReverse;
+ HBITMAP hAnd, hXor;
+ ICONINFO ii;
+ unsigned char *pCur;
+ int x, y;
+ unsigned char bit;
+ HDC hDC;
+ BITMAPV4HEADER bi;
+ BITMAPINFO *pbmi;
+ unsigned long *lpBits;
+
+ WIN_DEBUG_MSG("winLoadCursor: Win32: %dx%d X11: %dx%d hotspot: %d,%d\n",
+ pScreenPriv->cursor.sm_cx, pScreenPriv->cursor.sm_cy,
+ pCursor->bits->width, pCursor->bits->height,
+ pCursor->bits->xhot, pCursor->bits->yhot
+ );
+
+ /* We can use only White and Black, so calc brightness of color
+ * Also check if the cursor is inverted */
+ dForeY = BRIGHTNESS(pCursor->fore);
+ dBackY = BRIGHTNESS(pCursor->back);
+ fReverse = dForeY < dBackY;
+
+ /* Check wether the X11 cursor is bigger than the win32 cursor */
+ if (pScreenPriv->cursor.sm_cx < pCursor->bits->width ||
+ pScreenPriv->cursor.sm_cy < pCursor->bits->height)
+ {
+ winErrorFVerb (2, "winLoadCursor - Windows requires %dx%d cursor\n"
+ "\tbut X requires %dx%d\n",
+ pScreenPriv->cursor.sm_cx, pScreenPriv->cursor.sm_cy,
+ pCursor->bits->width, pCursor->bits->height);
+ }
+
+ /* Get the number of bytes required to store the whole cursor image
+ * This is roughly (sm_cx * sm_cy) / 8
+ * round up to 8 pixel boundary so we can convert whole bytes */
+ nBytes = BYTE_COUNT(pScreenPriv->cursor.sm_cx) * pScreenPriv->cursor.sm_cy;
+
+ /* Get the effective width and height */
+ nCX = MIN(pScreenPriv->cursor.sm_cx, pCursor->bits->width);
+ nCY = MIN(pScreenPriv->cursor.sm_cy, pCursor->bits->height);
+
+ /* Allocate memory for the bitmaps */
+ pAnd = malloc (nBytes);
+ memset (pAnd, 0xFF, nBytes);
+ pXor = malloc (nBytes);
+ memset (pXor, 0x00, nBytes);
+
+ /* Convert the X11 bitmap to a win32 bitmap
+ * The first is for an empty mask */
+ if (pCursor->bits->emptyMask)
+ {
+ int x, y, xmax = BYTE_COUNT(nCX);
+ for (y = 0; y < nCY; ++y)
+ for (x = 0; x < xmax; ++x)
+ {
+ int nWinPix = BYTE_COUNT(pScreenPriv->cursor.sm_cx) * y + x;
+ int nXPix = BitmapBytePad(pCursor->bits->width) * y + x;
+
+ pAnd[nWinPix] = 0;
+ if (fReverse)
+ pXor[nWinPix] = reverse (~pCursor->bits->source[nXPix]);
+ else
+ pXor[nWinPix] = reverse (pCursor->bits->source[nXPix]);
+ }
+ }
+ else
+ {
+ int x, y, xmax = BYTE_COUNT(nCX);
+ for (y = 0; y < nCY; ++y)
+ for (x = 0; x < xmax; ++x)
+ {
+ int nWinPix = BYTE_COUNT(pScreenPriv->cursor.sm_cx) * y + x;
+ int nXPix = BitmapBytePad(pCursor->bits->width) * y + x;
+
+ unsigned char mask = pCursor->bits->mask[nXPix];
+ pAnd[nWinPix] = reverse (~mask);
+ if (fReverse)
+ pXor[nWinPix] = reverse (~pCursor->bits->source[nXPix] & mask);
+ else
+ pXor[nWinPix] = reverse (pCursor->bits->source[nXPix] & mask);
+ }
+ }
+
+ /* prepare the pointers */
+ hCursor = NULL;
+ lpBits = NULL;
+
+ /* We have a truecolor alpha-blended cursor and can use it! */
+ if (pCursor->bits->argb)
+ {
+ WIN_DEBUG_MSG("winLoadCursor: Trying truecolor alphablended cursor\n");
+ memset (&bi, 0, sizeof (BITMAPV4HEADER));
+ bi.bV4Size = sizeof(BITMAPV4HEADER);
+ bi.bV4Width = pScreenPriv->cursor.sm_cx;
+ bi.bV4Height = -(pScreenPriv->cursor.sm_cy); /* right-side up */
+ bi.bV4Planes = 1;
+ bi.bV4BitCount = 32;
+ bi.bV4V4Compression = BI_BITFIELDS;
+ bi.bV4RedMask = 0x00FF0000;
+ bi.bV4GreenMask = 0x0000FF00;
+ bi.bV4BlueMask = 0x000000FF;
+ bi.bV4AlphaMask = 0xFF000000;
+
+ lpBits = (unsigned long *) calloc (pScreenPriv->cursor.sm_cx*pScreenPriv->cursor.sm_cy,
+ sizeof (unsigned long));
+
+ if (lpBits)
+ {
+ for (y=0; y<nCY; y++)
+ {
+ unsigned long *src, *dst;
+ src = &(pCursor->bits->argb[y * pCursor->bits->width]);
+ dst = &(lpBits[y * pScreenPriv->cursor.sm_cx]);
+ memcpy (dst, src, 4*nCX);
+ }
+ }
+ } /* End if-truecolor-icon */
+
+ if (!lpBits)
+ {
+ /* Bicolor, use a palettized DIB */
+ WIN_DEBUG_MSG("winLoadCursor: Trying two color cursor\n");
+ pbmi = (BITMAPINFO*)&bi;
+ memset (pbmi, 0, sizeof (BITMAPINFOHEADER));
+ pbmi->bmiHeader.biSize = sizeof(BITMAPINFOHEADER);
+ pbmi->bmiHeader.biWidth = pScreenPriv->cursor.sm_cx;
+ pbmi->bmiHeader.biHeight = -abs(pScreenPriv->cursor.sm_cy); /* right-side up */
+ pbmi->bmiHeader.biPlanes = 1;
+ pbmi->bmiHeader.biBitCount = 8;
+ pbmi->bmiHeader.biCompression = BI_RGB;
+ pbmi->bmiHeader.biSizeImage = 0;
+ pbmi->bmiHeader.biClrUsed = 3;
+ pbmi->bmiHeader.biClrImportant = 3;
+ pbmi->bmiColors[0].rgbRed = 0; /* Empty */
+ pbmi->bmiColors[0].rgbGreen = 0;
+ pbmi->bmiColors[0].rgbBlue = 0;
+ pbmi->bmiColors[0].rgbReserved = 0;
+ pbmi->bmiColors[1].rgbRed = pCursor->backRed>>8; /* Background */
+ pbmi->bmiColors[1].rgbGreen = pCursor->backGreen>>8;
+ pbmi->bmiColors[1].rgbBlue = pCursor->backBlue>>8;
+ pbmi->bmiColors[1].rgbReserved = 0;
+ pbmi->bmiColors[2].rgbRed = pCursor->foreRed>>8; /* Foreground */
+ pbmi->bmiColors[2].rgbGreen = pCursor->foreGreen>>8;
+ pbmi->bmiColors[2].rgbBlue = pCursor->foreBlue>>8;
+ pbmi->bmiColors[2].rgbReserved = 0;
+
+ lpBits = (unsigned long *) calloc (pScreenPriv->cursor.sm_cx*pScreenPriv->cursor.sm_cy,
+ sizeof (char));
+
+ pCur = (unsigned char *)lpBits;
+ if (lpBits)
+ {
+ for (y=0; y<pScreenPriv->cursor.sm_cy; y++)
+ {
+ for (x=0; x<pScreenPriv->cursor.sm_cx; x++)
+ {
+ if (x>=nCX || y>=nCY) /* Outside of X11 icon bounds */
+ (*pCur++) = 0;
+ else /* Within X11 icon bounds */
+ {
+ int nWinPix = BYTE_COUNT(pScreenPriv->cursor.sm_cx) * y + (x/8);
+
+ bit = pAnd[nWinPix];
+ bit = bit & (1<<(7-(x&7)));
+ if (!bit) /* Within the cursor mask? */
+ {
+ int nXPix = BitmapBytePad(pCursor->bits->width) * y + (x/8);
+ bit = ~reverse(~pCursor->bits->source[nXPix] & pCursor->bits->mask[nXPix]);
+ bit = bit & (1<<(7-(x&7)));
+ if (bit) /* Draw foreground */
+ (*pCur++) = 2;
+ else /* Draw background */
+ (*pCur++) = 1;
+ }
+ else /* Outside the cursor mask */
+ (*pCur++) = 0;
+ }
+ } /* end for (x) */
+ } /* end for (y) */
+ } /* end if (lpbits) */
+ }
+
+ /* If one of the previous two methods gave us the bitmap we need, make a cursor */
+ if (lpBits)
+ {
+ WIN_DEBUG_MSG("winLoadCursor: Creating bitmap cursor: hotspot %d,%d\n",
+ pCursor->bits->xhot, pCursor->bits->yhot);
+
+ hAnd = NULL;
+ hXor = NULL;
+
+ hAnd = CreateBitmap (pScreenPriv->cursor.sm_cx, pScreenPriv->cursor.sm_cy, 1, 1, pAnd);
+
+ hDC = GetDC (NULL);
+ if (hDC)
+ {
+ hXor = CreateCompatibleBitmap (hDC, pScreenPriv->cursor.sm_cx, pScreenPriv->cursor.sm_cy);
+ SetDIBits (hDC, hXor, 0, pScreenPriv->cursor.sm_cy, lpBits, (BITMAPINFO*)&bi, DIB_RGB_COLORS);
+ ReleaseDC (NULL, hDC);
+ }
+ free (lpBits);
+
+
+ if (hAnd && hXor)
+ {
+ ii.fIcon = FALSE;
+ ii.xHotspot = pCursor->bits->xhot;
+ ii.yHotspot = pCursor->bits->yhot;
+ ii.hbmMask = hAnd;
+ ii.hbmColor = hXor;
+ hCursor = (HCURSOR) CreateIconIndirect( &ii );
+
+ if (hCursor == NULL)
+ winW32Error(2, "winLoadCursor - CreateIconIndirect failed:");
+ else
+ {
+ if (GetIconInfo(hCursor, &ii))
+ {
+ if (ii.fIcon)
+ {
+ WIN_DEBUG_MSG("winLoadCursor: CreateIconIndirect returned no cursor. Trying again.\n");
+
+ DestroyCursor(hCursor);
+
+ ii.fIcon = FALSE;
+ ii.xHotspot = pCursor->bits->xhot;
+ ii.yHotspot = pCursor->bits->yhot;
+ hCursor = (HCURSOR) CreateIconIndirect( &ii );
+
+ if (hCursor == NULL)
+ winW32Error(2, "winLoadCursor - CreateIconIndirect failed:");
+ }
+ /* GetIconInfo creates new bitmaps. Destroy them again */
+ if (ii.hbmMask)
+ DeleteObject(ii.hbmMask);
+ if (ii.hbmColor)
+ DeleteObject(ii.hbmColor);
+ }
+ }
+ }
+
+ if (hAnd)
+ DeleteObject (hAnd);
+ if (hXor)
+ DeleteObject (hXor);
+ }
+
+ if (!hCursor)
+ {
+ /* We couldn't make a color cursor for this screen, use
+ black and white instead */
+ hCursor = CreateCursor (g_hInstance,
+ pCursor->bits->xhot, pCursor->bits->yhot,
+ pScreenPriv->cursor.sm_cx, pScreenPriv->cursor.sm_cy,
+ pAnd, pXor);
+ if (hCursor == NULL)
+ winW32Error(2, "winLoadCursor - CreateCursor failed:");
+ }
+ free (pAnd);
+ free (pXor);
+
+ return hCursor;
+}
+
+/*
+===========================================================================
+
+ Pointer sprite functions
+
+===========================================================================
+*/
+
+/*
+ * winRealizeCursor
+ * Convert the X cursor representation to native format if possible.
+ */
+static Bool
+winRealizeCursor (ScreenPtr pScreen, CursorPtr pCursor)
+{
+ WIN_DEBUG_MSG("winRealizeCursor: cursor=%p\n", pCursor);
+
+ if(pCursor == NULL || pCursor->bits == NULL)
+ return FALSE;
+
+ /* FIXME: cache ARGB8888 representation? */
+
+ return TRUE;
+}
+
+
+/*
+ * winUnrealizeCursor
+ * Free the storage space associated with a realized cursor.
+ */
+static Bool
+winUnrealizeCursor(ScreenPtr pScreen, CursorPtr pCursor)
+{
+ WIN_DEBUG_MSG("winUnrealizeCursor: cursor=%p\n", pCursor);
+ return TRUE;
+}
+
+
+/*
+ * winSetCursor
+ * Set the cursor sprite and position.
+ */
+static void
+winSetCursor (ScreenPtr pScreen, CursorPtr pCursor, int x, int y)
+{
+ POINT ptCurPos, ptTemp;
+ HWND hwnd;
+ RECT rcClient;
+ BOOL bInhibit;
+ winScreenPriv(pScreen);
+ WIN_DEBUG_MSG("winSetCursor: cursor=%p\n", pCursor);
+
+ /* Inhibit changing the cursor if the mouse is not in a client area */
+ bInhibit = FALSE;
+ if (GetCursorPos (&ptCurPos))
+ {
+ hwnd = WindowFromPoint (ptCurPos);
+ if (hwnd)
+ {
+ if (GetClientRect (hwnd, &rcClient))
+ {
+ ptTemp.x = rcClient.left;
+ ptTemp.y = rcClient.top;
+ if (ClientToScreen (hwnd, &ptTemp))
+ {
+ rcClient.left = ptTemp.x;
+ rcClient.top = ptTemp.y;
+ ptTemp.x = rcClient.right;
+ ptTemp.y = rcClient.bottom;
+ if (ClientToScreen (hwnd, &ptTemp))
+ {
+ rcClient.right = ptTemp.x;
+ rcClient.bottom = ptTemp.y;
+ if (!PtInRect (&rcClient, ptCurPos))
+ bInhibit = TRUE;
+ }
+ }
+ }
+ }
+ }
+
+ if (pCursor == NULL)
+ {
+ if (pScreenPriv->cursor.visible)
+ {
+ if (!bInhibit)
+ ShowCursor (FALSE);
+ pScreenPriv->cursor.visible = FALSE;
+ }
+ }
+ else
+ {
+ 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)
+ 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) pScreen->devPrivates[miPointerScreenIndex].ptr;
+
+ 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;
+}
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