348 lines
8.0 KiB
C
348 lines
8.0 KiB
C
/*
|
|
* $RCSId: $
|
|
*
|
|
* Copyright © 2000 Keith Packard
|
|
*
|
|
* Permission to use, copy, modify, distribute, and sell this software and its
|
|
* documentation for any purpose is hereby granted without fee, provided that
|
|
* the above copyright notice appear in all copies and that both that
|
|
* copyright notice and this permission notice appear in supporting
|
|
* documentation, and that the name of Keith Packard not be used in
|
|
* advertising or publicity pertaining to distribution of the software without
|
|
* specific, written prior permission. Keith Packard makes no
|
|
* representations about the suitability of this software for any purpose. It
|
|
* is provided "as is" without express or implied warranty.
|
|
*
|
|
* KEITH PACKARD DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
|
|
* INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
|
|
* EVENT SHALL KEITH PACKARD BE LIABLE FOR ANY SPECIAL, INDIRECT OR
|
|
* CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
|
|
* DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
|
|
* TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
|
|
* PERFORMANCE OF THIS SOFTWARE.
|
|
*/
|
|
|
|
#ifdef HAVE_CONFIG_H
|
|
#include <kdrive-config.h>
|
|
#endif
|
|
#include "igs.h"
|
|
#include "cursorstr.h"
|
|
|
|
#define SetupCursor(s) KdScreenPriv(s); \
|
|
igsCardInfo(pScreenPriv); \
|
|
igsScreenInfo(pScreenPriv); \
|
|
IgsCursor *pCurPriv = &igss->cursor; \
|
|
IgsVga *igsvga = &igsc->igsvga
|
|
|
|
static void
|
|
_igsMoveCursor (ScreenPtr pScreen, int x, int y)
|
|
{
|
|
SetupCursor(pScreen);
|
|
CARD8 xoff, yoff;
|
|
|
|
x -= pCurPriv->xhot;
|
|
xoff = 0;
|
|
if (x < 0)
|
|
{
|
|
xoff = -x;
|
|
x = 0;
|
|
}
|
|
y -= pCurPriv->yhot;
|
|
yoff = 0;
|
|
if (y < 0)
|
|
{
|
|
yoff = -y;
|
|
y = 0;
|
|
}
|
|
|
|
igsSet (igsvga, igs_sprite_x, x);
|
|
igsSet (igsvga, igs_sprite_preset_x, xoff);
|
|
igsSet (igsvga, igs_sprite_y, y);
|
|
igsSet (igsvga, igs_sprite_preset_y, yoff);
|
|
}
|
|
|
|
static void
|
|
igsMoveCursor (ScreenPtr pScreen, int x, int y)
|
|
{
|
|
SetupCursor (pScreen);
|
|
|
|
if (!pCurPriv->has_cursor)
|
|
return;
|
|
|
|
if (!pScreenPriv->enabled)
|
|
return;
|
|
|
|
_igsMoveCursor (pScreen, x, y);
|
|
VgaFlush (&igsvga->card);
|
|
}
|
|
|
|
|
|
static void
|
|
igsSetCursorColors (ScreenPtr pScreen)
|
|
{
|
|
SetupCursor (pScreen);
|
|
CursorPtr pCursor = pCurPriv->pCursor;
|
|
|
|
igsSetImm (igsvga, igs_cursor_write_index, 0);
|
|
igsSetImm (igsvga, igs_cursor_data, pCursor->backRed >> 8);
|
|
igsSetImm (igsvga, igs_cursor_data, pCursor->backGreen >> 8);
|
|
igsSetImm (igsvga, igs_cursor_data, pCursor->backBlue >> 8);
|
|
igsSetImm (igsvga, igs_cursor_write_index, 1);
|
|
igsSetImm (igsvga, igs_cursor_data, pCursor->foreRed >> 8);
|
|
igsSetImm (igsvga, igs_cursor_data, pCursor->foreGreen >> 8);
|
|
igsSetImm (igsvga, igs_cursor_data, pCursor->foreBlue >> 8);
|
|
}
|
|
|
|
#if BITMAP_BIT_ORDER == MSBFirst
|
|
#define IgsAdjustCursor(v) { \
|
|
v = ((v & 0x55555555) << 1) | ((v >> 1) & 0x55555555); \
|
|
v = ((v & 0x33333333) << 2) | ((v >> 2) & 0x33333333); \
|
|
v = ((v & 0x0f0f0f0f) << 4) | ((v >> 4) & 0x0f0f0f0f); \
|
|
v = ((v & 0x00ff00ff) << 8) | ((v >> 8) & 0x00ff00ff); \
|
|
v = ((v & 0x0000ffff) <<16) | ((v >>16) & 0x0000ffff); \
|
|
}
|
|
#else
|
|
#define IgsAdjustCursor(v)
|
|
#endif
|
|
|
|
#define ExplodeBits2(v) (((v) & 1) | (((v) & 2) << 1))
|
|
#define ExplodeBits4(v) ((ExplodeBits2((v) >> 2) << 4) | \
|
|
(ExplodeBits2((v) & 0x3)))
|
|
#define ExplodeBits8(v) ((ExplodeBits4((v) >> 4) << 8) | \
|
|
(ExplodeBits4((v) & 0xf)))
|
|
#define ExplodeBits16(v) ((ExplodeBits8((v) >> 8) << 16) | \
|
|
(ExplodeBits8((v) & 0xff)))
|
|
static void
|
|
igsLoadCursor (ScreenPtr pScreen, int x, int y)
|
|
{
|
|
SetupCursor(pScreen);
|
|
CursorPtr pCursor = pCurPriv->pCursor;
|
|
CursorBitsPtr bits = pCursor->bits;
|
|
int w, h;
|
|
CARD32 *ram, *msk, *mskLine, *src, *srcLine;
|
|
int i, j;
|
|
int cursor_address;
|
|
int lwsrc;
|
|
unsigned char ramdac_control_;
|
|
CARD32 offset;
|
|
CARD32 b0, b1;
|
|
|
|
pCurPriv->pCursor = pCursor;
|
|
pCurPriv->xhot = pCursor->bits->xhot;
|
|
pCurPriv->yhot = pCursor->bits->yhot;
|
|
|
|
/*
|
|
* Stick new image into cursor memory
|
|
*/
|
|
ram = (CARD32 *) igss->cursor_base;
|
|
mskLine = (CARD32 *) bits->mask;
|
|
srcLine = (CARD32 *) bits->source;
|
|
|
|
h = bits->height;
|
|
if (h > IGS_CURSOR_HEIGHT)
|
|
h = IGS_CURSOR_HEIGHT;
|
|
|
|
lwsrc = BitmapBytePad(bits->width) / 4; /* words per line */
|
|
|
|
for (i = 0; i < IGS_CURSOR_HEIGHT; i++) {
|
|
msk = mskLine;
|
|
src = srcLine;
|
|
mskLine += lwsrc;
|
|
srcLine += lwsrc;
|
|
for (j = 0; j < IGS_CURSOR_WIDTH / 32; j++) {
|
|
|
|
CARD32 m, s;
|
|
|
|
if (i < h && j < lwsrc)
|
|
{
|
|
m = *msk++;
|
|
s = *src++;
|
|
IgsAdjustCursor(m);
|
|
IgsAdjustCursor(s);
|
|
}
|
|
else
|
|
{
|
|
m = 0;
|
|
s = 0;
|
|
}
|
|
s &= m;
|
|
m = ~m;
|
|
b0 = ExplodeBits16(s&0xffff) | (ExplodeBits16(m&0xffff)<<1);
|
|
b1 = ExplodeBits16(s>>16) | (ExplodeBits16(m>>16)<<1);
|
|
*ram++ = b0;
|
|
*ram++ = b1;
|
|
}
|
|
}
|
|
|
|
/* Set new color */
|
|
igsSetCursorColors (pScreen);
|
|
|
|
/* Set address for cursor bits */
|
|
offset = igss->cursor_offset;
|
|
offset >>= 10;
|
|
igsSet (igsvga, igs_sprite_addr, offset);
|
|
|
|
/* Assume TV interpolation off */
|
|
igsSet (igsvga, igs_hcshf, 3);
|
|
/* Enable the cursor */
|
|
igsSet (igsvga, igs_sprite_visible, 1);
|
|
igsSet (igsvga, igs_sprite_64x64, 1);
|
|
/* Move to new position */
|
|
_igsMoveCursor (pScreen, x, y);
|
|
|
|
VgaFlush (&igsvga->card);
|
|
}
|
|
|
|
static void
|
|
igsUnloadCursor (ScreenPtr pScreen)
|
|
{
|
|
SetupCursor (pScreen);
|
|
|
|
/* Disable cursor */
|
|
igsSet (igsvga, igs_sprite_visible, 0);
|
|
VgaFlush (&igsvga->card);
|
|
}
|
|
|
|
static Bool
|
|
igsRealizeCursor (ScreenPtr pScreen, CursorPtr pCursor)
|
|
{
|
|
SetupCursor(pScreen);
|
|
|
|
if (!pScreenPriv->enabled)
|
|
return TRUE;
|
|
|
|
/* miRecolorCursor does this */
|
|
if (pCurPriv->pCursor == pCursor)
|
|
{
|
|
if (pCursor)
|
|
{
|
|
int x, y;
|
|
|
|
miPointerPosition (&x, &y);
|
|
igsLoadCursor (pScreen, x, y);
|
|
}
|
|
}
|
|
return TRUE;
|
|
}
|
|
|
|
static Bool
|
|
igsUnrealizeCursor (ScreenPtr pScreen, CursorPtr pCursor)
|
|
{
|
|
return TRUE;
|
|
}
|
|
|
|
static void
|
|
igsSetCursor (ScreenPtr pScreen, CursorPtr pCursor, int x, int y)
|
|
{
|
|
SetupCursor(pScreen);
|
|
|
|
pCurPriv->pCursor = pCursor;
|
|
|
|
if (!pScreenPriv->enabled)
|
|
return;
|
|
|
|
if (pCursor)
|
|
igsLoadCursor (pScreen, x, y);
|
|
else
|
|
igsUnloadCursor (pScreen);
|
|
}
|
|
|
|
miPointerSpriteFuncRec igsPointerSpriteFuncs = {
|
|
igsRealizeCursor,
|
|
igsUnrealizeCursor,
|
|
igsSetCursor,
|
|
igsMoveCursor,
|
|
};
|
|
|
|
static void
|
|
igsQueryBestSize (int class,
|
|
unsigned short *pwidth, unsigned short *pheight,
|
|
ScreenPtr pScreen)
|
|
{
|
|
SetupCursor (pScreen);
|
|
|
|
switch (class)
|
|
{
|
|
case CursorShape:
|
|
if (*pwidth > pCurPriv->width)
|
|
*pwidth = pCurPriv->width;
|
|
if (*pheight > pCurPriv->height)
|
|
*pheight = pCurPriv->height;
|
|
if (*pwidth > pScreen->width)
|
|
*pwidth = pScreen->width;
|
|
if (*pheight > pScreen->height)
|
|
*pheight = pScreen->height;
|
|
break;
|
|
default:
|
|
fbQueryBestSize (class, pwidth, pheight, pScreen);
|
|
break;
|
|
}
|
|
}
|
|
|
|
Bool
|
|
igsCursorInit (ScreenPtr pScreen)
|
|
{
|
|
SetupCursor (pScreen);
|
|
|
|
if (!igss->cursor_base)
|
|
{
|
|
pCurPriv->has_cursor = FALSE;
|
|
return FALSE;
|
|
}
|
|
|
|
pCurPriv->width = IGS_CURSOR_WIDTH;
|
|
pCurPriv->height= IGS_CURSOR_HEIGHT;
|
|
pScreen->QueryBestSize = igsQueryBestSize;
|
|
miPointerInitialize (pScreen,
|
|
&igsPointerSpriteFuncs,
|
|
&kdPointerScreenFuncs,
|
|
FALSE);
|
|
pCurPriv->has_cursor = TRUE;
|
|
pCurPriv->pCursor = NULL;
|
|
return TRUE;
|
|
}
|
|
|
|
void
|
|
igsCursorEnable (ScreenPtr pScreen)
|
|
{
|
|
SetupCursor (pScreen);
|
|
|
|
if (pCurPriv->has_cursor)
|
|
{
|
|
if (pCurPriv->pCursor)
|
|
{
|
|
int x, y;
|
|
|
|
miPointerPosition (&x, &y);
|
|
igsLoadCursor (pScreen, x, y);
|
|
}
|
|
else
|
|
igsUnloadCursor (pScreen);
|
|
}
|
|
}
|
|
|
|
void
|
|
igsCursorDisable (ScreenPtr pScreen)
|
|
{
|
|
SetupCursor (pScreen);
|
|
|
|
if (!pScreenPriv->enabled)
|
|
return;
|
|
|
|
if (pCurPriv->has_cursor)
|
|
{
|
|
if (pCurPriv->pCursor)
|
|
{
|
|
igsUnloadCursor (pScreen);
|
|
}
|
|
}
|
|
}
|
|
|
|
void
|
|
igsCursorFini (ScreenPtr pScreen)
|
|
{
|
|
SetupCursor (pScreen);
|
|
|
|
pCurPriv->pCursor = NULL;
|
|
}
|