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/*
* Copyright 2009, 2010 Red Hat, Inc.
*
* 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
* on the rights to use, copy, modify, merge, publish, distribute, sub
* license, 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 (including the next
* paragraph) 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 NON-INFRINGEMENT. IN NO EVENT SHALL
* THE AUTHORS 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.
*
*/
/** \file qxl_cursor.c
* \author Søren Sandmann <sandmann@redhat.com>
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include <string.h>
#include "qxl.h"
#include <cursorstr.h>
static void
push_cursor (qxl_screen_t *qxl, struct QXLCursorCmd *cursor)
{
struct QXLCommand cmd;
/* See comment on push_command() in qxl_driver.c */
if (qxl->pScrn->vtSema)
{
cmd.type = QXL_CMD_CURSOR;
cmd.data = physical_address (qxl, cursor, qxl->main_mem_slot);
qxl_ring_push (qxl->cursor_ring, &cmd);
}
}
static struct QXLCursorCmd *
qxl_alloc_cursor_cmd(qxl_screen_t *qxl)
{
struct QXLCursorCmd *cmd =
qxl_allocnf (qxl, sizeof(struct QXLCursorCmd));
cmd->release_info.id = pointer_to_u64 (cmd) | 1;
return cmd;
}
static void
qxl_set_cursor_position(ScrnInfoPtr pScrn, int x, int y)
{
qxl_screen_t *qxl = pScrn->driverPrivate;
struct QXLCursorCmd *cmd = qxl_alloc_cursor_cmd(qxl);
qxl->cur_x = x;
qxl->cur_y = y;
cmd->type = QXL_CURSOR_MOVE;
cmd->u.position.x = qxl->cur_x + qxl->hot_x;
cmd->u.position.y = qxl->cur_y + qxl->hot_y;
push_cursor(qxl, cmd);
}
static void
qxl_load_cursor_image(ScrnInfoPtr pScrn, unsigned char *bits)
{
}
static void
qxl_set_cursor_colors(ScrnInfoPtr pScrn, int bg, int fg)
{
/* Should not be called since UseHWCursor returned FALSE */
}
static void
qxl_load_cursor_argb (ScrnInfoPtr pScrn, CursorPtr pCurs)
{
qxl_screen_t *qxl = pScrn->driverPrivate;
int w = pCurs->bits->width;
int h = pCurs->bits->height;
int size = w * h * sizeof (CARD32);
struct QXLCursorCmd *cmd = qxl_alloc_cursor_cmd (qxl);
struct QXLCursor *cursor =
qxl_allocnf(qxl, sizeof(struct QXLCursor) + size);
cursor->header.unique = 0;
cursor->header.type = SPICE_CURSOR_TYPE_ALPHA;
cursor->header.width = w;
cursor->header.height = h;
/* I wonder if we can just tell the client that the hotspot is 0, 0
* always? The coordinates we are getting from X are for 0, 0 anyway,
* so the question is if the client uses the hotspot for anything else?
*/
cursor->header.hot_spot_x = pCurs->bits->xhot;
cursor->header.hot_spot_y = pCurs->bits->yhot;
cursor->data_size = size;
cursor->chunk.next_chunk = 0;
cursor->chunk.prev_chunk = 0;
cursor->chunk.data_size = size;
memcpy (cursor->chunk.data, pCurs->bits->argb, size);
#if 0
int i, j;
for (j = 0; j < h; ++j)
{
for (i = 0; i < w; ++i)
{
ErrorF ("%c", (pCurs->bits->argb[j * w + i] & 0xff000000) == 0xff000000? '#' : '.');
}
ErrorF ("\n");
}
#endif
qxl->hot_x = pCurs->bits->xhot;
qxl->hot_y = pCurs->bits->yhot;
cmd->type = QXL_CURSOR_SET;
cmd->u.set.position.x = qxl->cur_x + qxl->hot_x;
cmd->u.set.position.y = qxl->cur_y + qxl->hot_y;
cmd->u.set.shape = physical_address (qxl, cursor, qxl->main_mem_slot);
cmd->u.set.visible = TRUE;
push_cursor(qxl, cmd);
}
static Bool
qxl_use_hw_cursor (ScreenPtr pScrn, CursorPtr pCurs)
{
/* Old-school bitmap cursors are not
* hardware accelerated for now.
*/
return FALSE;
}
static Bool
qxl_use_hw_cursorARGB (ScreenPtr pScrn, CursorPtr pCurs)
{
return TRUE;
}
static void
qxl_hide_cursor(ScrnInfoPtr pScrn)
{
qxl_screen_t *qxl = pScrn->driverPrivate;
struct QXLCursorCmd *cursor = qxl_alloc_cursor_cmd(qxl);
cursor->type = QXL_CURSOR_HIDE;
push_cursor(qxl, cursor);
}
static void
qxl_show_cursor(ScrnInfoPtr pScrn)
{
/*
* slightly hacky, but there's no QXL_CURSOR_SHOW. Could maybe do
* QXL_CURSOR_SET?
*/
qxl_screen_t *qxl = pScrn->driverPrivate;
qxl_set_cursor_position(pScrn, qxl->cur_x, qxl->cur_y);
}
hidden void
qxl_cursor_init(ScreenPtr pScreen)
{
xf86CursorInfoPtr cursor;
cursor = calloc(1, sizeof(xf86CursorInfoRec));
if (!cursor)
return;
cursor->MaxWidth = cursor->MaxHeight = 64;
/* cursor->Flags; */
cursor->SetCursorPosition = qxl_set_cursor_position;
cursor->LoadCursorARGB = qxl_load_cursor_argb;
cursor->UseHWCursor = qxl_use_hw_cursor;
cursor->UseHWCursorARGB = qxl_use_hw_cursorARGB;
cursor->LoadCursorImage = qxl_load_cursor_image;
cursor->SetCursorColors = qxl_set_cursor_colors;
cursor->HideCursor = qxl_hide_cursor;
cursor->ShowCursor = qxl_show_cursor;
if (!xf86InitCursor(pScreen, cursor))
free(cursor);
}
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