diff options
Diffstat (limited to 'hw/xfree86/xwayland/xwayland-cursor.c')
| -rw-r--r-- | hw/xfree86/xwayland/xwayland-cursor.c | 250 |
1 files changed, 250 insertions, 0 deletions
diff --git a/hw/xfree86/xwayland/xwayland-cursor.c b/hw/xfree86/xwayland/xwayland-cursor.c new file mode 100644 index 000000000..2b3cb5e63 --- /dev/null +++ b/hw/xfree86/xwayland/xwayland-cursor.c @@ -0,0 +1,250 @@ +/* + * 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. + */ + +#ifdef HAVE_XORG_CONFIG_H +#include "xorg-config.h" +#endif + +#include <unistd.h> +#include <errno.h> +#include <sys/mman.h> +#include <wayland-client.h> + +#include <cursorstr.h> +#include <xf86Crtc.h> +#include <mipointrst.h> + +#include "xwayland.h" +#include "xwayland-private.h" +#include "xserver-client-protocol.h" + +static void +expand_source_and_mask(CursorPtr cursor, void *data) +{ + CARD32 *argb, *p, d, fg, bg; + CursorBitsPtr bits = cursor->bits; + int size; + int x, y, stride, i, bit; + + size = bits->width * bits->height * 4; + argb = malloc(size); + if (argb == NULL) + return; + + p = argb; + 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; + } + + memcpy(data, argb, size); + free(argb); +} + +static Bool +xwl_realize_cursor(DeviceIntPtr device, ScreenPtr screen, CursorPtr cursor) +{ + struct xwl_screen *xwl_screen; + int size; + char filename[] = "/tmp/wayland-shm-XXXXXX"; + int fd; + struct wl_shm_pool *pool; + struct wl_buffer *buffer; + void *data; + + xwl_screen = xwl_screen_get(screen); + size = cursor->bits->width * cursor->bits->height * 4; + + fd = mkstemp(filename); + if (fd < 0) { + ErrorF("open %s failed: %s", filename, strerror(errno)); + return FALSE; + } + if (ftruncate(fd, size) < 0) { + ErrorF("ftruncate failed: %s", strerror(errno)); + close(fd); + return FALSE; + } + + data = mmap(NULL, size, PROT_READ | PROT_WRITE, MAP_SHARED, fd, 0); + unlink(filename); + + if (data == MAP_FAILED) { + ErrorF("mmap failed: %s", strerror(errno)); + close(fd); + return FALSE; + } + + if (cursor->bits->argb) + memcpy(data, cursor->bits->argb, size); + else + expand_source_and_mask(cursor, data); + munmap(data, size); + + pool = wl_shm_create_pool(xwl_screen->shm, fd, size); + close(fd); + buffer = wl_shm_pool_create_buffer(pool, 0, + cursor->bits->width, cursor->bits->height, + cursor->bits->width * 4, + WL_SHM_FORMAT_ARGB8888); + wl_shm_pool_destroy(pool); + + dixSetPrivate(&cursor->devPrivates, + &xwl_screen->cursor_private_key, buffer); + + return TRUE; +} + +static Bool +xwl_unrealize_cursor(DeviceIntPtr device, + ScreenPtr screen, CursorPtr cursor) +{ + struct wl_buffer *buffer; + struct xwl_screen *xwl_screen; + + xwl_screen = xwl_screen_get(screen); + buffer = dixGetPrivate(&cursor->devPrivates, + &xwl_screen->cursor_private_key); + wl_buffer_destroy(buffer); + + return TRUE; +} + +void +xwl_seat_set_cursor(struct xwl_seat *xwl_seat) +{ + struct wl_buffer *buffer; + + 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; + } + + buffer = dixGetPrivate(&xwl_seat->x_cursor->devPrivates, + &xwl_seat->xwl_screen->cursor_private_key); + + 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, buffer, 0, 0); + wl_surface_damage(xwl_seat->cursor, 0, 0, + xwl_seat->x_cursor->bits->width, + xwl_seat->x_cursor->bits->height); + wl_surface_commit(xwl_seat->cursor); +} + +static void +xwl_set_cursor(DeviceIntPtr device, + ScreenPtr screen, CursorPtr cursor, int x, int y) +{ + struct xwl_screen *xwl_screen; + struct xwl_seat *xwl_seat; + + xwl_screen = xwl_screen_get(screen); + + if (!xwl_screen || xorg_list_is_empty(&xwl_screen->seat_list)) + return; + + xwl_seat = xorg_list_first_entry(&xwl_screen->seat_list, + struct xwl_seat, link); + + 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) +{ + struct xwl_screen *xwl_screen; + + xwl_screen = xwl_screen_get(screen); + + return xwl_screen->sprite_funcs->DeviceCursorInitialize(device, + screen); +} + +static void +xwl_device_cursor_cleanup(DeviceIntPtr device, ScreenPtr screen) +{ + struct xwl_screen *xwl_screen; + + xwl_screen = xwl_screen_get(screen); + + xwl_screen->sprite_funcs->DeviceCursorCleanup(device, 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 +}; + +int +xwl_screen_init_cursor(struct xwl_screen *xwl_screen, ScreenPtr screen) +{ + miPointerScreenPtr pointer_priv; + + if (!dixRegisterPrivateKey(&xwl_screen->cursor_private_key, + PRIVATE_CURSOR, 0)) + return BadAlloc; + + pointer_priv = dixLookupPrivate(&screen->devPrivates, miPointerScreenKey); + xwl_screen->sprite_funcs = pointer_priv->spriteFuncs; + pointer_priv->spriteFuncs = &xwl_pointer_sprite_funcs; + + return Success; +} |