259 lines
7.5 KiB
C
259 lines
7.5 KiB
C
/*
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* Copyright © 2014 Red Hat, Inc.
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice (including the next
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* paragraph) shall be included in all copies or substantial portions of the
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* Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
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* DEALINGS IN THE SOFTWARE.
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*
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* Author:
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* Adam Jackson <ajax@redhat.com>
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*/
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#ifdef HAVE_CONFIG_H
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#include <kdrive-config.h>
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#endif
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#include "ephyr.h"
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#include "ephyrlog.h"
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#include "hostx.h"
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#include "cursorstr.h"
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#include <xcb/render.h>
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#include <xcb/xcb_renderutil.h>
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static DevPrivateKeyRec ephyrCursorPrivateKey;
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typedef struct _ephyrCursor {
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xcb_cursor_t cursor;
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} ephyrCursorRec, *ephyrCursorPtr;
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static ephyrCursorPtr
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ephyrGetCursor(CursorPtr cursor)
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{
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return dixGetPrivateAddr(&cursor->devPrivates, &ephyrCursorPrivateKey);
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}
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static void
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ephyrRealizeCoreCursor(EphyrScrPriv *scr, CursorPtr cursor)
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{
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ephyrCursorPtr hw = ephyrGetCursor(cursor);
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xcb_connection_t *conn = hostx_get_xcbconn();
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xcb_pixmap_t source, mask;
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xcb_image_t *image;
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xcb_gcontext_t gc;
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int w = cursor->bits->width, h = cursor->bits->height;
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uint32_t gcmask = XCB_GC_FUNCTION |
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XCB_GC_PLANE_MASK |
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XCB_GC_FOREGROUND |
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XCB_GC_BACKGROUND |
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XCB_GC_CLIP_MASK;
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uint32_t val[] = {
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XCB_GX_COPY, /* function */
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~0, /* planemask */
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1L, /* foreground */
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0L, /* background */
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None, /* clipmask */
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};
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source = xcb_generate_id(conn);
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mask = xcb_generate_id(conn);
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xcb_create_pixmap(conn, 1, source, scr->win, w, h);
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xcb_create_pixmap(conn, 1, mask, scr->win, w, h);
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gc = xcb_generate_id(conn);
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xcb_create_gc(conn, gc, source, gcmask, val);
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image = xcb_image_create_native(conn, w, h, XCB_IMAGE_FORMAT_XY_BITMAP,
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1, NULL, ~0, NULL);
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image->data = cursor->bits->source;
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xcb_image_put(conn, source, gc, image, 0, 0, 0);
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xcb_image_destroy(image);
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image = xcb_image_create_native(conn, w, h, XCB_IMAGE_FORMAT_XY_BITMAP,
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1, NULL, ~0, NULL);
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image->data = cursor->bits->mask;
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xcb_image_put(conn, mask, gc, image, 0, 0, 0);
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xcb_image_destroy(image);
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xcb_free_gc(conn, gc);
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hw->cursor = xcb_generate_id(conn);
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xcb_create_cursor(conn, hw->cursor, source, mask,
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cursor->foreRed, cursor->foreGreen, cursor->foreBlue,
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cursor->backRed, cursor->backGreen, cursor->backBlue,
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cursor->bits->xhot, cursor->bits->yhot);
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xcb_free_pixmap(conn, source);
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xcb_free_pixmap(conn, mask);
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}
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static xcb_render_pictformat_t
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get_argb_format(void)
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{
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static xcb_render_pictformat_t format;
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if (format == None) {
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xcb_connection_t *conn = hostx_get_xcbconn();
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xcb_render_query_pict_formats_cookie_t cookie;
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xcb_render_query_pict_formats_reply_t *formats;
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cookie = xcb_render_query_pict_formats(conn);
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formats =
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xcb_render_query_pict_formats_reply(conn, cookie, NULL);
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format =
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xcb_render_util_find_standard_format(formats,
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XCB_PICT_STANDARD_ARGB_32)->id;
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free(formats);
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}
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return format;
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}
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static void
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ephyrRealizeARGBCursor(EphyrScrPriv *scr, CursorPtr cursor)
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{
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ephyrCursorPtr hw = ephyrGetCursor(cursor);
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xcb_connection_t *conn = hostx_get_xcbconn();
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xcb_gcontext_t gc;
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xcb_pixmap_t source;
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xcb_render_picture_t picture;
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xcb_image_t *image;
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int w = cursor->bits->width, h = cursor->bits->height;
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/* dix' storage is PICT_a8r8g8b8 */
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source = xcb_generate_id(conn);
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xcb_create_pixmap(conn, 32, source, scr->win, w, h);
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gc = xcb_generate_id(conn);
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xcb_create_gc(conn, gc, source, 0, NULL);
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image = xcb_image_create_native(conn, w, h, XCB_IMAGE_FORMAT_Z_PIXMAP,
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32, NULL, ~0, NULL);
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image->data = (void *)cursor->bits->argb;
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xcb_image_put(conn, source, gc, image, 0, 0, 0);
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xcb_free_gc(conn, gc);
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xcb_image_destroy(image);
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picture = xcb_generate_id(conn);
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xcb_render_create_picture(conn, picture, source, get_argb_format(),
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0, NULL);
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xcb_free_pixmap(conn, source);
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hw->cursor = xcb_generate_id(conn);
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xcb_render_create_cursor(conn, hw->cursor, picture,
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cursor->bits->xhot, cursor->bits->yhot);
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xcb_render_free_picture(conn, picture);
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}
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static Bool
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can_argb_cursor(void)
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{
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static const xcb_render_query_version_reply_t *v;
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if (!v)
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v = xcb_render_util_query_version(hostx_get_xcbconn());
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return v->major_version == 0 && v->minor_version >= 5;
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}
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static Bool
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ephyrRealizeCursor(DeviceIntPtr dev, ScreenPtr screen, CursorPtr cursor)
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{
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KdScreenPriv(screen);
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KdScreenInfo *kscr = pScreenPriv->screen;
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EphyrScrPriv *scr = kscr->driver;
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if (cursor->bits->argb && can_argb_cursor())
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ephyrRealizeARGBCursor(scr, cursor);
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else
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{
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ephyrRealizeCoreCursor(scr, cursor);
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}
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return TRUE;
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}
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static Bool
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ephyrUnrealizeCursor(DeviceIntPtr dev, ScreenPtr screen, CursorPtr cursor)
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{
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ephyrCursorPtr hw = ephyrGetCursor(cursor);
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if (hw->cursor) {
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xcb_free_cursor(hostx_get_xcbconn(), hw->cursor);
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hw->cursor = None;
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}
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return TRUE;
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}
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static void
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ephyrSetCursor(DeviceIntPtr dev, ScreenPtr screen, CursorPtr cursor, int x,
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int y)
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{
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KdScreenPriv(screen);
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KdScreenInfo *kscr = pScreenPriv->screen;
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EphyrScrPriv *scr = kscr->driver;
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uint32_t attr = None;
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if (cursor)
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attr = ephyrGetCursor(cursor)->cursor;
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else
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attr = hostx_get_empty_cursor();
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xcb_change_window_attributes(hostx_get_xcbconn(), scr->win,
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XCB_CW_CURSOR, &attr);
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xcb_flush(hostx_get_xcbconn());
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}
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static void
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ephyrMoveCursor(DeviceIntPtr dev, ScreenPtr screen, int x, int y)
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{
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}
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static Bool
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ephyrDeviceCursorInitialize(DeviceIntPtr dev, ScreenPtr screen)
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{
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return TRUE;
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}
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static void
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ephyrDeviceCursorCleanup(DeviceIntPtr dev, ScreenPtr screen)
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{
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}
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miPointerSpriteFuncRec EphyrPointerSpriteFuncs = {
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ephyrRealizeCursor,
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ephyrUnrealizeCursor,
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ephyrSetCursor,
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ephyrMoveCursor,
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ephyrDeviceCursorInitialize,
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ephyrDeviceCursorCleanup
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};
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Bool
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ephyrCursorInit(ScreenPtr screen)
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{
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if (!dixRegisterPrivateKey(&ephyrCursorPrivateKey, PRIVATE_CURSOR_BITS,
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sizeof(ephyrCursorRec)))
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return FALSE;
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miPointerInitialize(screen,
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&EphyrPointerSpriteFuncs,
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&ephyrPointerScreenFuncs, FALSE);
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return TRUE;
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}
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