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/*
* Copyright © 2014 Intel Corporation
* Copyright © 2011 Kristian Høgsberg
*
* 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 the
* copyright holders not be used in advertising or publicity
* pertaining to distribution of the software without specific,
* written prior permission. The copyright holders make no
* representations about the suitability of this software for any
* purpose. It is provided "as is" without express or implied
* warranty.
*
* THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS
* SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND
* FITNESS, IN NO EVENT SHALL THE COPYRIGHT HOLDERS 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.
*/
#include "xwayland.h"
#include <mipointer.h>
static DevPrivateKeyRec xwl_cursor_private_key;
static void
expand_source_and_mask(CursorPtr cursor, CARD32 *data)
{
CARD32 *p, d, fg, bg;
CursorBitsPtr bits = cursor->bits;
int x, y, stride, i, bit;
p = data;
fg = ((cursor->foreRed & 0xff00) << 8) |
(cursor->foreGreen & 0xff00) | (cursor->foreGreen >> 8);
bg = ((cursor->backRed & 0xff00) << 8) |
(cursor->backGreen & 0xff00) | (cursor->backGreen >> 8);
stride = (bits->width / 8 + 3) & ~3;
for (y = 0; y < bits->height; y++)
for (x = 0; x < bits->width; x++) {
i = y * stride + x / 8;
bit = 1 << (x & 7);
if (bits->source[i] & bit)
d = fg;
else
d = bg;
if (bits->mask[i] & bit)
d |= 0xff000000;
else
d = 0x00000000;
*p++ = d;
}
}
static Bool
xwl_realize_cursor(DeviceIntPtr device, ScreenPtr screen, CursorPtr cursor)
{
PixmapPtr pixmap;
pixmap = xwl_shm_create_pixmap(screen, cursor->bits->width,
cursor->bits->height, 32, 0);
dixSetPrivate(&cursor->devPrivates, &xwl_cursor_private_key, pixmap);
return TRUE;
}
static Bool
xwl_unrealize_cursor(DeviceIntPtr device, ScreenPtr screen, CursorPtr cursor)
{
PixmapPtr pixmap;
pixmap = dixGetPrivate(&cursor->devPrivates, &xwl_cursor_private_key);
return xwl_shm_destroy_pixmap(pixmap);
}
static void
frame_callback(void *data,
struct wl_callback *callback,
uint32_t time)
{
struct xwl_seat *xwl_seat = data;
xwl_seat->cursor_frame_cb = NULL;
if (xwl_seat->cursor_needs_update) {
xwl_seat->cursor_needs_update = FALSE;
xwl_seat_set_cursor(xwl_seat);
}
}
static const struct wl_callback_listener frame_listener = {
frame_callback
};
void
xwl_seat_set_cursor(struct xwl_seat *xwl_seat)
{
PixmapPtr pixmap;
CursorPtr cursor;
int stride;
if (!xwl_seat->wl_pointer)
return;
if (!xwl_seat->x_cursor) {
wl_pointer_set_cursor(xwl_seat->wl_pointer,
xwl_seat->pointer_enter_serial, NULL, 0, 0);
return;
}
if (xwl_seat->cursor_frame_cb) {
xwl_seat->cursor_needs_update = TRUE;
return;
}
cursor = xwl_seat->x_cursor;
pixmap = dixGetPrivate(&cursor->devPrivates, &xwl_cursor_private_key);
stride = cursor->bits->width * 4;
if (cursor->bits->argb)
memcpy(pixmap->devPrivate.ptr,
cursor->bits->argb, cursor->bits->height * stride);
else
expand_source_and_mask(cursor, pixmap->devPrivate.ptr);
wl_pointer_set_cursor(xwl_seat->wl_pointer,
xwl_seat->pointer_enter_serial,
xwl_seat->cursor,
xwl_seat->x_cursor->bits->xhot,
xwl_seat->x_cursor->bits->yhot);
wl_surface_attach(xwl_seat->cursor,
xwl_shm_pixmap_get_wl_buffer(pixmap), 0, 0);
wl_surface_damage(xwl_seat->cursor, 0, 0,
xwl_seat->x_cursor->bits->width,
xwl_seat->x_cursor->bits->height);
xwl_seat->cursor_frame_cb = wl_surface_frame(xwl_seat->cursor);
wl_callback_add_listener(xwl_seat->cursor_frame_cb, &frame_listener, xwl_seat);
wl_surface_commit(xwl_seat->cursor);
}
static void
xwl_set_cursor(DeviceIntPtr device,
ScreenPtr screen, CursorPtr cursor, int x, int y)
{
struct xwl_seat *xwl_seat;
xwl_seat = device->public.devicePrivate;
if (xwl_seat == NULL)
return;
xwl_seat->x_cursor = cursor;
xwl_seat_set_cursor(xwl_seat);
}
static void
xwl_move_cursor(DeviceIntPtr device, ScreenPtr screen, int x, int y)
{
}
static Bool
xwl_device_cursor_initialize(DeviceIntPtr device, ScreenPtr screen)
{
return TRUE;
}
static void
xwl_device_cursor_cleanup(DeviceIntPtr device, ScreenPtr screen)
{
}
static miPointerSpriteFuncRec xwl_pointer_sprite_funcs = {
xwl_realize_cursor,
xwl_unrealize_cursor,
xwl_set_cursor,
xwl_move_cursor,
xwl_device_cursor_initialize,
xwl_device_cursor_cleanup
};
static Bool
xwl_cursor_off_screen(ScreenPtr *ppScreen, int *x, int *y)
{
return FALSE;
}
static void
xwl_cross_screen(ScreenPtr pScreen, Bool entering)
{
}
static void
xwl_pointer_warp_cursor(DeviceIntPtr pDev, ScreenPtr pScreen, int x, int y)
{
}
static miPointerScreenFuncRec xwl_pointer_screen_funcs = {
xwl_cursor_off_screen,
xwl_cross_screen,
xwl_pointer_warp_cursor
};
Bool
xwl_screen_init_cursor(struct xwl_screen *xwl_screen)
{
if (!dixRegisterPrivateKey(&xwl_cursor_private_key, PRIVATE_CURSOR_BITS, 0))
return FALSE;
return miPointerInitialize(xwl_screen->screen,
&xwl_pointer_sprite_funcs,
&xwl_pointer_screen_funcs, TRUE);
}
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