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xserver/hw/darwin/quartz/xpr/xprCursor.c

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/**************************************************************
*
* Xplugin cursor support
*
**************************************************************/
/*
* Copyright (c) 2001 Torrey T. Lyons and Greg Parker.
* Copyright (c) 2002 Apple Computer, Inc.
* All Rights Reserved.
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* THE ABOVE LISTED COPYRIGHT HOLDER(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
* OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
* ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
* DEALINGS IN THE SOFTWARE.
*
* Except as contained in this notice, the name(s) of the above copyright
* holders shall not be used in advertising or otherwise to promote the sale,
* use or other dealings in this Software without prior written authorization.
*/
/* $XFree86: xc/programs/Xserver/hw/darwin/quartz/xpr/xprCursor.c,v 1.1 2003/04/30 23:15:42 torrey Exp $ */
#include "quartzCommon.h"
#include "xpr.h"
#include "darwin.h"
#include "Xplugin.h"
#include "mi.h"
#include "scrnintstr.h"
#include "cursorstr.h"
#include "mipointrst.h"
#include "windowstr.h"
#include "globals.h"
#include "servermd.h"
#include "dixevents.h"
typedef struct {
int cursorVisible;
QueryBestSizeProcPtr QueryBestSize;
miPointerSpriteFuncPtr spriteFuncs;
} QuartzCursorScreenRec, *QuartzCursorScreenPtr;
static int darwinCursorScreenIndex = -1;
static unsigned long darwinCursorGeneration = 0;
#define CURSOR_PRIV(pScreen) \
((QuartzCursorScreenPtr)pScreen->devPrivates[darwinCursorScreenIndex].ptr)
static Bool
load_cursor(CursorPtr src, int screen)
{
uint32_t *data;
uint32_t rowbytes;
int width, height;
int hot_x, hot_y;
uint32_t fg_color, bg_color;
uint8_t *srow, *sptr;
uint8_t *mrow, *mptr;
uint32_t *drow, *dptr;
unsigned xcount, ycount;
xp_error err;
width = src->bits->width;
height = src->bits->height;
hot_x = src->bits->xhot;
hot_y = src->bits->yhot;
#ifdef ARGB_CURSOR
if (src->bits->argb != NULL)
{
rowbytes = src->bits->width * sizeof(CARD32);
data = (uint32_t *) src->bits->argb;
}
else
#endif
{
fg_color = 0xFF00 | (src->foreRed >> 8);
fg_color <<= 16;
fg_color |= src->foreGreen & 0xFF00;
fg_color |= src->foreBlue >> 8;
bg_color = 0xFF00 | (src->backRed >> 8);
bg_color <<= 16;
bg_color |= src->backGreen & 0xFF00;
bg_color |= src->backBlue >> 8;
fg_color = htonl(fg_color);
bg_color = htonl(bg_color);
/* round up to 8 pixel boundary so we can convert whole bytes */
rowbytes = ((src->bits->width * 4) + 31) & ~31;
data = alloca(rowbytes * src->bits->height);
if (!src->bits->emptyMask)
{
ycount = src->bits->height;
srow = src->bits->source; mrow = src->bits->mask;
drow = data;
while (ycount-- > 0)
{
xcount = (src->bits->width + 7) / 8;
sptr = srow; mptr = mrow;
dptr = drow;
while (xcount-- > 0)
{
uint8_t s, m;
int i;
s = *sptr++; m = *mptr++;
for (i = 0; i < 8; i++)
{
#if BITMAP_BIT_ORDER == MSBFirst
if (m & 128)
*dptr++ = (s & 128) ? fg_color : bg_color;
else
*dptr++ = 0;
s <<= 1; m <<= 1;
#else
if (m & 1)
*dptr++ = (s & 1) ? fg_color : bg_color;
else
*dptr++ = 0;
s >>= 1; m >>= 1;
#endif
}
}
srow += BitmapBytePad(src->bits->width);
mrow += BitmapBytePad(src->bits->width);
drow = (uint32_t *) ((char *) drow + rowbytes);
}
}
else
{
memset(data, 0, src->bits->height * rowbytes);
}
}
err = xp_set_cursor(width, height, hot_x, hot_y, data, rowbytes);
return err == Success;
}
/*
===========================================================================
Pointer sprite functions
===========================================================================
*/
/*
* QuartzRealizeCursor
* Convert the X cursor representation to native format if possible.
*/
static Bool
QuartzRealizeCursor(ScreenPtr pScreen, CursorPtr pCursor)
{
if(pCursor == NULL || pCursor->bits == NULL)
return FALSE;
/* FIXME: cache ARGB8888 representation? */
return TRUE;
}
/*
* QuartzUnrealizeCursor
* Free the storage space associated with a realized cursor.
*/
static Bool
QuartzUnrealizeCursor(ScreenPtr pScreen, CursorPtr pCursor)
{
return TRUE;
}
/*
* QuartzSetCursor
* Set the cursor sprite and position.
*/
static void
QuartzSetCursor(ScreenPtr pScreen, CursorPtr pCursor, int x, int y)
{
QuartzCursorScreenPtr ScreenPriv = CURSOR_PRIV(pScreen);
if (!quartzServerVisible)
return;
if (pCursor == NULL)
{
if (ScreenPriv->cursorVisible)
{
xp_hide_cursor();
ScreenPriv->cursorVisible = FALSE;
}
}
else
{
load_cursor(pCursor, pScreen->myNum);
if (!ScreenPriv->cursorVisible)
{
xp_show_cursor();
ScreenPriv->cursorVisible = TRUE;
}
}
}
/*
* QuartzMoveCursor
* Move the cursor. This is a noop for us.
*/
static void
QuartzMoveCursor(ScreenPtr pScreen, int x, int y)
{
}
static miPointerSpriteFuncRec quartzSpriteFuncsRec = {
QuartzRealizeCursor,
QuartzUnrealizeCursor,
QuartzSetCursor,
QuartzMoveCursor
};
/*
===========================================================================
Pointer screen functions
===========================================================================
*/
/*
* QuartzCursorOffScreen
*/
static Bool
QuartzCursorOffScreen(ScreenPtr *pScreen, int *x, int *y)
{
return FALSE;
}
/*
* QuartzCrossScreen
*/
static void
QuartzCrossScreen(ScreenPtr pScreen, Bool entering)
{
return;
}
/*
* QuartzWarpCursor
* Change the cursor position without generating an event or motion history.
* The input coordinates (x,y) are in pScreen-local X11 coordinates.
*
*/
static void
QuartzWarpCursor(ScreenPtr pScreen, int x, int y)
{
static Bool neverMoved = TRUE;
if (neverMoved)
{
/* Don't move the cursor the first time. This is the
jump-to-center initialization, and it's annoying. */
neverMoved = FALSE;
return;
}
if (quartzServerVisible)
{
int sx, sy;
sx = dixScreenOrigins[pScreen->myNum].x + darwinMainScreenX;
sy = dixScreenOrigins[pScreen->myNum].y + darwinMainScreenY;
CGWarpMouseCursorPosition(CGPointMake(sx + x, sy + y));
}
miPointerWarpCursor(pScreen, x, y);
miPointerUpdate();
}
static miPointerScreenFuncRec quartzScreenFuncsRec = {
QuartzCursorOffScreen,
QuartzCrossScreen,
QuartzWarpCursor,
DarwinEQPointerPost,
DarwinEQSwitchScreen
};
/*
===========================================================================
Other screen functions
===========================================================================
*/
/*
* QuartzCursorQueryBestSize
* Handle queries for best cursor size
*/
static void
QuartzCursorQueryBestSize(int class, unsigned short *width,
unsigned short *height, ScreenPtr pScreen)
{
QuartzCursorScreenPtr ScreenPriv = CURSOR_PRIV(pScreen);
if (class == CursorShape)
{
/* FIXME: query window server? */
*width = 32;
*height = 32;
}
else
{
(*ScreenPriv->QueryBestSize)(class, width, height, pScreen);
}
}
/*
* QuartzInitCursor
* Initialize cursor support
*/
Bool
QuartzInitCursor(ScreenPtr pScreen)
{
QuartzCursorScreenPtr ScreenPriv;
miPointerScreenPtr PointPriv;
/* initialize software cursor handling (always needed as backup) */
if (!miDCInitialize(pScreen, &quartzScreenFuncsRec))
return FALSE;
/* allocate private storage for this screen's QuickDraw cursor info */
if (darwinCursorGeneration != serverGeneration)
{
if ((darwinCursorScreenIndex = AllocateScreenPrivateIndex()) < 0)
return FALSE;
darwinCursorGeneration = serverGeneration;
}
ScreenPriv = xcalloc(1, sizeof(QuartzCursorScreenRec));
if (ScreenPriv == NULL)
return FALSE;
CURSOR_PRIV(pScreen) = ScreenPriv;
/* override some screen procedures */
ScreenPriv->QueryBestSize = pScreen->QueryBestSize;
pScreen->QueryBestSize = QuartzCursorQueryBestSize;
PointPriv = (miPointerScreenPtr) pScreen->devPrivates[miPointerScreenIndex].ptr;
ScreenPriv->spriteFuncs = PointPriv->spriteFuncs;
PointPriv->spriteFuncs = &quartzSpriteFuncsRec;
ScreenPriv->cursorVisible = TRUE;
return TRUE;
}
/*
* QuartzSuspendXCursor
* X server is hiding. Restore the Aqua cursor.
*/
void
QuartzSuspendXCursor(ScreenPtr pScreen)
{
}
/*
* QuartzResumeXCursor
* X server is showing. Restore the X cursor.
*/
void
QuartzResumeXCursor(ScreenPtr pScreen, int x, int y)
{
WindowPtr pWin;
CursorPtr pCursor;
pWin = GetSpriteWindow();
if (pWin->drawable.pScreen != pScreen)
return;
pCursor = GetSpriteCursor();
if (pCursor == NULL)
return;
QuartzSetCursor(pScreen, pCursor, x, y);
}
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