console.c 59 KB
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/*
 * Server-side console management
 *
 * Copyright (C) 1998 Alexandre Julliard
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 *               2001 Eric Pouech
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 *
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 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2.1 of the License, or (at your option) any later version.
 *
 * This library is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to the Free Software
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 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
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 */

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#include "config.h"
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#include "wine/port.h"
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#include <assert.h>
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#include <string.h>
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#include <stdio.h>
#include <unistd.h>
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#include <signal.h>
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#include "ntstatus.h"
#define WIN32_NO_STATUS
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#include "handle.h"
#include "process.h"
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#include "request.h"
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#include "file.h"
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#include "unicode.h"
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#include "wincon.h"
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#include "winternl.h"
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struct screen_buffer;
struct console_input_events;

struct console_input
{
    struct object                obj;           /* object header */
    int                          num_proc;      /* number of processes attached to this console */
    struct thread               *renderer;      /* console renderer thread */
    int                          mode;          /* input mode */
    struct screen_buffer        *active;        /* active screen buffer */
    int                          recnum;        /* number of input records */
    INPUT_RECORD                *records;       /* input records */
    struct console_input_events *evt;           /* synchronization event with renderer */
    WCHAR                       *title;         /* console title */
    WCHAR                      **history;       /* lines history */
    int                          history_size;  /* number of entries in history array */
    int                          history_index; /* number of used entries in history array */
    int                          history_mode;  /* mode of history (non zero means remove doubled strings */
    int                          edition_mode;  /* index to edition mode flavors */
    int                          input_cp;      /* console input codepage */
    int                          output_cp;     /* console output codepage */
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    user_handle_t                win;           /* window handle if backend supports it */
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    struct event                *event;         /* event to wait on for input queue */
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    struct fd                   *fd;            /* for bare console, attached input fd */
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};

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static void console_input_dump( struct object *obj, int verbose );
static void console_input_destroy( struct object *obj );
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static struct fd *console_input_get_fd( struct object *obj );
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static const struct object_ops console_input_ops =
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{
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    sizeof(struct console_input),     /* size */
    console_input_dump,               /* dump */
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    no_get_type,                      /* get_type */
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    no_add_queue,                     /* add_queue */
    NULL,                             /* remove_queue */
    NULL,                             /* signaled */
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    no_satisfied,                     /* satisfied */
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    no_signal,                        /* signal */
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    console_input_get_fd,             /* get_fd */
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    default_fd_map_access,            /* map_access */
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    default_get_sd,                   /* get_sd */
    default_set_sd,                   /* set_sd */
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    no_lookup_name,                   /* lookup_name */
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    no_open_file,                     /* open_file */
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    no_close_handle,                  /* close_handle */
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    console_input_destroy             /* destroy */
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};

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static void console_input_events_dump( struct object *obj, int verbose );
static void console_input_events_destroy( struct object *obj );
static int  console_input_events_signaled( struct object *obj, struct thread *thread );

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struct console_input_events
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{
    struct object         obj;         /* object header */
    int			  num_alloc;   /* number of allocated events */
    int 		  num_used;    /* number of actually used events */
    struct console_renderer_event*	events;
};

static const struct object_ops console_input_events_ops =
{
    sizeof(struct console_input_events), /* size */
    console_input_events_dump,        /* dump */
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    no_get_type,                      /* get_type */
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    add_queue,                        /* add_queue */
    remove_queue,                     /* remove_queue */
    console_input_events_signaled,    /* signaled */
    no_satisfied,                     /* satisfied */
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    no_signal,                        /* signal */
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    no_get_fd,                        /* get_fd */
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    default_fd_map_access,            /* map_access */
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    default_get_sd,                   /* get_sd */
    default_set_sd,                   /* set_sd */
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    no_lookup_name,                   /* lookup_name */
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    no_open_file,                     /* open_file */
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    no_close_handle,                  /* close_handle */
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    console_input_events_destroy      /* destroy */
};

struct screen_buffer
{
    struct object         obj;           /* object header */
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    struct list           entry;         /* entry in list of all screen buffers */
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    struct console_input *input;         /* associated console input */
    int                   mode;          /* output mode */
    int                   cursor_size;   /* size of cursor (percentage filled) */
    int                   cursor_visible;/* cursor visibility flag */
    int                   cursor_x;      /* position of cursor */
    int                   cursor_y;      /* position of cursor */
    int                   width;         /* size (w-h) of the screen buffer */
    int                   height;
    int                   max_width;     /* size (w-h) of the window given font size */
    int                   max_height;
    char_info_t          *data;          /* the data for each cell - a width x height matrix */
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    unsigned short        attr;          /* default attribute for screen buffer */
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    rectangle_t           win;           /* current visible window on the screen buffer *
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					  * as seen in wineconsole */
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    struct fd            *fd;            /* for bare console, attached output fd */
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};

static void screen_buffer_dump( struct object *obj, int verbose );
static void screen_buffer_destroy( struct object *obj );
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static struct fd *screen_buffer_get_fd( struct object *obj );
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static const struct object_ops screen_buffer_ops =
{
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    sizeof(struct screen_buffer),     /* size */
    screen_buffer_dump,               /* dump */
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    no_get_type,                      /* get_type */
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    no_add_queue,                     /* add_queue */
    NULL,                             /* remove_queue */
    NULL,                             /* signaled */
    NULL,                             /* satisfied */
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    no_signal,                        /* signal */
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    screen_buffer_get_fd,             /* get_fd */
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    default_fd_map_access,            /* map_access */
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    default_get_sd,                   /* get_sd */
    default_set_sd,                   /* set_sd */
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    no_lookup_name,                   /* lookup_name */
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    no_open_file,                     /* open_file */
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    no_close_handle,                  /* close_handle */
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    screen_buffer_destroy             /* destroy */
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};

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static enum server_fd_type console_get_fd_type( struct fd *fd );

static const struct fd_ops console_fd_ops =
{
    default_fd_get_poll_events,   /* get_poll_events */
    default_poll_event,           /* poll_event */
    no_flush,                     /* flush */
    console_get_fd_type,          /* get_fd_type */
    default_fd_ioctl,             /* ioctl */
    default_fd_queue_async,       /* queue_async */
    default_fd_reselect_async,    /* reselect_async */
    default_fd_cancel_async       /* cancel_async */
};

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static struct list screen_buffer_list = LIST_INIT(screen_buffer_list);
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static const char_info_t empty_char_info = { ' ', 0x000f };  /* white on black space */
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static int console_input_is_bare( struct console_input* cin )
{
    return cin->evt == NULL;
}

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static struct fd *console_input_get_fd( struct object* obj )
{
    struct console_input *console_input = (struct console_input*)obj;
    assert( obj->ops == &console_input_ops );
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    if (console_input->fd)
        return (struct fd*)grab_object( console_input->fd );
    set_error( STATUS_OBJECT_TYPE_MISMATCH );
    return NULL;
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}

static enum server_fd_type console_get_fd_type( struct fd *fd )
{
    return FD_TYPE_CHAR;
}

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/* dumps the renderer events of a console */
static void console_input_events_dump( struct object *obj, int verbose )
{
    struct console_input_events *evts = (struct console_input_events *)obj;
    assert( obj->ops == &console_input_events_ops );
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    fprintf( stderr, "Console input events: %d/%d events\n",
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	     evts->num_used, evts->num_alloc );
}

/* destroys the renderer events of a console */
static void console_input_events_destroy( struct object *obj )
{
    struct console_input_events *evts = (struct console_input_events *)obj;
    assert( obj->ops == &console_input_events_ops );
    free( evts->events );
}
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/* the renderer events list is signaled when it's not empty */
static int console_input_events_signaled( struct object *obj, struct thread *thread )
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{
    struct console_input_events *evts = (struct console_input_events *)obj;
    assert( obj->ops == &console_input_events_ops );
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    return (evts->num_used != 0);
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}

/* add an event to the console's renderer events list */
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static void console_input_events_append( struct console_input* console,
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					 struct console_renderer_event* evt)
{
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    struct console_input_events* evts;
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    int collapsed = FALSE;

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    if (!(evts = console->evt)) return;
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    /* to be done even when evt has been generated by the renderer ? */
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    /* try to collapse evt into current queue's events */
    if (evts->num_used)
    {
        struct console_renderer_event* last = &evts->events[evts->num_used - 1];

        if (last->event == CONSOLE_RENDERER_UPDATE_EVENT &&
            evt->event == CONSOLE_RENDERER_UPDATE_EVENT)
        {
            /* if two update events overlap, collapse them into a single one */
            if (last->u.update.bottom + 1 >= evt->u.update.top &&
                evt->u.update.bottom + 1 >= last->u.update.top)
            {
                last->u.update.top = min(last->u.update.top, evt->u.update.top);
                last->u.update.bottom = max(last->u.update.bottom, evt->u.update.bottom);
                collapsed = TRUE;
            }
        }
    }
    if (!collapsed)
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    {
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        if (evts->num_used == evts->num_alloc)
        {
            evts->num_alloc += 16;
            evts->events = realloc( evts->events, evts->num_alloc * sizeof(*evt) );
            assert(evts->events);
        }
        evts->events[evts->num_used++] = *evt;
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    }
    wake_up( &evts->obj, 0 );
}

/* retrieves events from the console's renderer events list */
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static void console_input_events_get( struct console_input_events* evts )
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{
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    data_size_t num = get_reply_max_size() / sizeof(evts->events[0]);
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    if (num > evts->num_used) num = evts->num_used;
    set_reply_data( evts->events, num * sizeof(evts->events[0]) );
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    if (num < evts->num_used)
    {
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        memmove( &evts->events[0], &evts->events[num],
                 (evts->num_used - num) * sizeof(evts->events[0]) );
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    }
    evts->num_used -= num;
}

static struct console_input_events *create_console_input_events(void)
{
    struct console_input_events*	evt;

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    if (!(evt = alloc_object( &console_input_events_ops ))) return NULL;
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    evt->num_alloc = evt->num_used = 0;
    evt->events = NULL;
    return evt;
}

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static struct object *create_console_input( struct thread* renderer, int fd )
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{
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    struct console_input *console_input;
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    if (!(console_input = alloc_object( &console_input_ops ))) return NULL;
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    console_input->renderer      = renderer;
    console_input->mode          = ENABLE_PROCESSED_INPUT | ENABLE_LINE_INPUT |
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                                   ENABLE_ECHO_INPUT | ENABLE_MOUSE_INPUT | ENABLE_INSERT_MODE |
                                   ENABLE_EXTENDED_FLAGS;
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    console_input->num_proc      = 0;
    console_input->active        = NULL;
    console_input->recnum        = 0;
    console_input->records       = NULL;
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    console_input->evt           = renderer ? create_console_input_events() : NULL;
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    console_input->title         = NULL;
    console_input->history_size  = 50;
    console_input->history       = calloc( console_input->history_size, sizeof(WCHAR*) );
    console_input->history_index = 0;
    console_input->history_mode  = 0;
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    console_input->edition_mode  = 0;
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    console_input->input_cp      = 0;
    console_input->output_cp     = 0;
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    console_input->win           = 0;
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    console_input->event         = create_event( NULL, NULL, 0, 1, 0, NULL );
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    console_input->fd            = NULL;
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    if (!console_input->history || (renderer && !console_input->evt) || !console_input->event)
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    {
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	release_object( console_input );
	return NULL;
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    }
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    if (fd != -1) /* bare console */
    {
        if (!(console_input->fd = create_anonymous_fd( &console_fd_ops, fd, &console_input->obj,
                                                       FILE_SYNCHRONOUS_IO_NONALERT )))
        {
            release_object( console_input );
            return NULL;
        }
        allow_fd_caching( console_input->fd );
    }

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    return &console_input->obj;
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}

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static void generate_sb_initial_events( struct console_input *console_input )
{
    struct screen_buffer *screen_buffer = console_input->active;
    struct console_renderer_event evt;

    evt.event = CONSOLE_RENDERER_ACTIVE_SB_EVENT;
    memset(&evt.u, 0, sizeof(evt.u));
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    console_input_events_append( console_input, &evt );
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    evt.event = CONSOLE_RENDERER_SB_RESIZE_EVENT;
    evt.u.resize.width  = screen_buffer->width;
    evt.u.resize.height = screen_buffer->height;
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    console_input_events_append( console_input, &evt );
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    evt.event = CONSOLE_RENDERER_DISPLAY_EVENT;
    evt.u.display.left   = screen_buffer->win.left;
    evt.u.display.top    = screen_buffer->win.top;
    evt.u.display.width  = screen_buffer->win.right - screen_buffer->win.left + 1;
    evt.u.display.height = screen_buffer->win.bottom - screen_buffer->win.top + 1;
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    console_input_events_append( console_input, &evt );
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    evt.event = CONSOLE_RENDERER_UPDATE_EVENT;
    evt.u.update.top    = 0;
    evt.u.update.bottom = screen_buffer->height - 1;
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    console_input_events_append( console_input, &evt );
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    evt.event = CONSOLE_RENDERER_CURSOR_GEOM_EVENT;
    evt.u.cursor_geom.size    = screen_buffer->cursor_size;
    evt.u.cursor_geom.visible = screen_buffer->cursor_visible;
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    console_input_events_append( console_input, &evt );
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    evt.event = CONSOLE_RENDERER_CURSOR_POS_EVENT;
    evt.u.cursor_pos.x = screen_buffer->cursor_x;
    evt.u.cursor_pos.y = screen_buffer->cursor_y;
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    console_input_events_append( console_input, &evt );
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}

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static struct screen_buffer *create_console_output( struct console_input *console_input, int fd )
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{
    struct screen_buffer *screen_buffer;
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    int	i;
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    if (!(screen_buffer = alloc_object( &screen_buffer_ops )))
    {
        if (fd != -1) close( fd );
        return NULL;
    }
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    screen_buffer->mode           = ENABLE_PROCESSED_OUTPUT | ENABLE_WRAP_AT_EOL_OUTPUT;
    screen_buffer->input          = console_input;
    screen_buffer->cursor_size    = 100;
    screen_buffer->cursor_visible = 1;
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    screen_buffer->width          = 80;
    screen_buffer->height         = 150;
    screen_buffer->max_width      = 80;
    screen_buffer->max_height     = 25;
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    screen_buffer->cursor_x       = 0;
    screen_buffer->cursor_y       = 0;
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    screen_buffer->attr           = 0x0F;
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    screen_buffer->win.left       = 0;
    screen_buffer->win.right      = screen_buffer->max_width - 1;
    screen_buffer->win.top        = 0;
    screen_buffer->win.bottom     = screen_buffer->max_height - 1;
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    if (fd == -1)
        screen_buffer->fd = NULL;
    else
    {
        if (!(screen_buffer->fd = create_anonymous_fd( &console_fd_ops, fd, &screen_buffer->obj,
                                                       FILE_SYNCHRONOUS_IO_NONALERT )))
        {
            release_object( screen_buffer );
            return NULL;
        }
        allow_fd_caching(screen_buffer->fd);
    }
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    list_add_head( &screen_buffer_list, &screen_buffer->entry );
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    if (!(screen_buffer->data = malloc( screen_buffer->width * screen_buffer->height *
                                        sizeof(*screen_buffer->data) )))
    {
        release_object( screen_buffer );
        return NULL;
    }
    /* clear the first row */
    for (i = 0; i < screen_buffer->width; i++) screen_buffer->data[i] = empty_char_info;
    /* and copy it to all other rows */
    for (i = 1; i < screen_buffer->height; i++)
        memcpy( &screen_buffer->data[i * screen_buffer->width], screen_buffer->data,
                screen_buffer->width * sizeof(char_info_t) );

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    if (!console_input->active)
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    {
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	console_input->active = (struct screen_buffer*)grab_object( screen_buffer );
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        generate_sb_initial_events( console_input );
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    }
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    return screen_buffer;
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}

/* free the console for this process */
int free_console( struct process *process )
{
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    struct console_input* console = process->console;

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    if (!console) return 0;
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    process->console = NULL;
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    if (--console->num_proc == 0 && console->renderer)
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    {
	/* all processes have terminated... tell the renderer to terminate too */
	struct console_renderer_event evt;
	evt.event = CONSOLE_RENDERER_EXIT_EVENT;
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        memset(&evt.u, 0, sizeof(evt.u));
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	console_input_events_append( console, &evt );
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    }
    release_object( console );

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    return 1;
}

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/* let process inherit the console from parent... this handle two cases :
 *	1/ generic console inheritance
 *	2/ parent is a renderer which launches process, and process should attach to the console
 *	   renderered by parent
 */
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void inherit_console(struct thread *parent_thread, struct process *process, obj_handle_t hconin)
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{
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    int done = 0;
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    struct process* parent = parent_thread->process;
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    /* if parent is a renderer, then attach current process to its console
     * a bit hacky....
     */
    if (hconin)
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    {
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	struct console_input* console;

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        /* FIXME: should we check some access rights ? */
        if ((console = (struct console_input*)get_handle_obj( parent, hconin,
                                                              0, &console_input_ops )))
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	{
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            if (console->renderer == parent_thread)
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	    {
		process->console = (struct console_input*)grab_object( console );
		process->console->num_proc++;
		done = 1;
	    }
	    release_object( console );
	}
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        else clear_error();  /* ignore error */
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    }
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    /* otherwise, if parent has a console, attach child to this console */
    if (!done && parent->console)
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    {
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	process->console = (struct console_input*)grab_object( parent->console );
	process->console->num_proc++;
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    }
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}

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struct thread *console_get_renderer( struct console_input *console )
{
    return console->renderer;
}

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static struct console_input* console_input_get( obj_handle_t handle, unsigned access )
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{
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    struct console_input*	console = NULL;
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    if (handle)
	console = (struct console_input *)get_handle_obj( current->process, handle,
							  access, &console_input_ops );
    else if (current->process->console)
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    {
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	console = (struct console_input *)grab_object( current->process->console );
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    }
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    if (!console && !get_error()) set_error(STATUS_INVALID_PARAMETER);
    return console;
}
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struct console_signal_info
{
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    struct console_input        *console;
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    process_id_t                 group;
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    int                          signal;
};

static int propagate_console_signal_cb(struct process *process, void *user)
{
    struct console_signal_info* csi = (struct console_signal_info*)user;

    if (process->console == csi->console && process->running_threads &&
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        (!csi->group || process->group_id == csi->group))
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    {
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        /* find a suitable thread to signal */
        struct thread *thread;
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        LIST_FOR_EACH_ENTRY( thread, &process->thread_list, struct thread, proc_entry )
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        {
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            if (send_thread_signal( thread, csi->signal )) break;
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        }
    }
    return FALSE;
}

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static void propagate_console_signal( struct console_input *console,
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                                      int sig, process_id_t group_id )
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{
    struct console_signal_info csi;

    if (!console)
    {
        set_error( STATUS_INVALID_PARAMETER );
        return;
    }
    /* FIXME: should support the other events (like CTRL_BREAK) */
    if (sig != CTRL_C_EVENT)
    {
        set_error( STATUS_NOT_IMPLEMENTED );
        return;
    }
    csi.console = console;
    csi.signal  = SIGINT;
    csi.group   = group_id;

    enum_processes(propagate_console_signal_cb, &csi);
}

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static int get_console_mode( obj_handle_t handle )
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{
    struct object *obj;
    int ret = 0;

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    if ((obj = get_handle_obj( current->process, handle, FILE_READ_PROPERTIES, NULL )))
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    {
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        if (obj->ops == &console_input_ops)
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        {
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            ret = ((struct console_input *)obj)->mode;
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        }
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        else if (obj->ops == &screen_buffer_ops)
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        {
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            ret = ((struct screen_buffer *)obj)->mode;
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        }
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        else
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            set_error( STATUS_OBJECT_TYPE_MISMATCH );
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        release_object( obj );
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    }
    return ret;
}

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/* changes the mode of either a console input or a screen buffer */
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static int set_console_mode( obj_handle_t handle, int mode )
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{
    struct object *obj;
    int ret = 0;

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    if (!(obj = get_handle_obj( current->process, handle, FILE_WRITE_PROPERTIES, NULL )))
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        return 0;
    if (obj->ops == &console_input_ops)
    {
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	/* FIXME: if we remove the edit mode bits, we need (???) to clean up the history */
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        ((struct console_input *)obj)->mode = mode;
        ret = 1;
    }
    else if (obj->ops == &screen_buffer_ops)
    {
        ((struct screen_buffer *)obj)->mode = mode;
        ret = 1;
    }
610
    else set_error( STATUS_OBJECT_TYPE_MISMATCH );
611 612 613 614
    release_object( obj );
    return ret;
}

615
/* add input events to a console input queue */
616 617
static int write_console_input( struct console_input* console, int count,
                                const INPUT_RECORD *records )
618 619 620
{
    INPUT_RECORD *new_rec;

621
    if (!count) return 0;
622 623 624
    if (!(new_rec = realloc( console->records,
                             (console->recnum + count) * sizeof(INPUT_RECORD) )))
    {
625
        set_error( STATUS_NO_MEMORY );
626 627 628 629 630
        release_object( console );
        return -1;
    }
    console->records = new_rec;
    memcpy( new_rec + console->recnum, records, count * sizeof(INPUT_RECORD) );
631

632 633 634 635 636
    if (console->mode & ENABLE_PROCESSED_INPUT)
    {
        int i = 0;
        while (i < count)
        {
637
            if (records[i].EventType == KEY_EVENT &&
638 639 640 641
		records[i].Event.KeyEvent.uChar.UnicodeChar == 'C' - 64 &&
		!(records[i].Event.KeyEvent.dwControlKeyState & ENHANCED_KEY))
            {
                if (i != count - 1)
642 643
                    memcpy( &console->records[console->recnum + i],
                            &console->records[console->recnum + i + 1],
644 645 646 647 648
                            (count - i - 1) * sizeof(INPUT_RECORD) );
                count--;
                if (records[i].Event.KeyEvent.bKeyDown)
                {
                    /* send SIGINT to all processes attached to this console */
649
                    propagate_console_signal( console, CTRL_C_EVENT, 0 );
650 651 652 653 654
                }
            }
            else i++;
        }
    }
655
    if (!console->recnum && count) set_event( console->event );
656
    console->recnum += count;
657 658 659 660
    return count;
}

/* retrieve a pointer to the console input records */
661
static int read_console_input( obj_handle_t handle, int count, int flush )
662 663 664 665
{
    struct console_input *console;

    if (!(console = (struct console_input *)get_handle_obj( current->process, handle,
666
                                                            FILE_READ_DATA, &console_input_ops )))
667
        return -1;
668 669 670 671 672 673 674 675 676 677

    if (!count)
    {
        /* special case: do not retrieve anything, but return
         * the total number of records available */
        count = console->recnum;
    }
    else
    {
        if (count > console->recnum) count = console->recnum;
678
        set_reply_data( console->records, count * sizeof(INPUT_RECORD) );
679
    }
680 681 682 683
    if (flush)
    {
        int i;
        for (i = count; i < console->recnum; i++)
684
            console->records[i-count] = console->records[i];
685 686 687 688 689 690 691 692 693 694
        if ((console->recnum -= count) > 0)
        {
            INPUT_RECORD *new_rec = realloc( console->records,
                                             console->recnum * sizeof(INPUT_RECORD) );
            if (new_rec) console->records = new_rec;
        }
        else
        {
            free( console->records );
            console->records = NULL;
695
            reset_event( console->event );
696 697 698 699 700 701
        }
    }
    release_object( console );
    return count;
}

702
/* set misc console input information */
703
static int set_console_input_info( const struct set_console_input_info_request *req,
704
				   const WCHAR *title, data_size_t len )
705
{
706 707 708
    struct console_input *console;
    struct console_renderer_event evt;

709
    if (!(console = console_input_get( req->handle, FILE_WRITE_PROPERTIES ))) goto error;
710 711 712 713 714 715 716
    if (console_input_is_bare(console) &&
        (req->mask & (SET_CONSOLE_INPUT_INFO_ACTIVE_SB|
                      SET_CONSOLE_INPUT_INFO_WIN)))
    {
        set_error( STATUS_UNSUCCESSFUL );
        goto error;
    }
717

718
    memset(&evt.u, 0, sizeof(evt.u));
719 720 721 722
    if (req->mask & SET_CONSOLE_INPUT_INFO_ACTIVE_SB)
    {
	struct screen_buffer *screen_buffer;

723
	screen_buffer = (struct screen_buffer *)get_handle_obj( current->process, req->active_sb,
724
								FILE_WRITE_PROPERTIES, &screen_buffer_ops );
725 726
	if (!screen_buffer || screen_buffer->input != console)
	{
727
	    set_error( STATUS_INVALID_HANDLE );
728 729 730 731 732 733 734 735
	    if (screen_buffer) release_object( screen_buffer );
	    goto error;
	}

	if (screen_buffer != console->active)
	{
	    if (console->active) release_object( console->active );
	    console->active = screen_buffer;
736
	    generate_sb_initial_events( console );
737 738 739 740 741 742 743 744 745
	}
	else
	    release_object( screen_buffer );
    }
    if (req->mask & SET_CONSOLE_INPUT_INFO_TITLE)
    {
        WCHAR *new_title = mem_alloc( len + sizeof(WCHAR) );
        if (new_title)
        {
746
            memcpy( new_title, title, len );
747
            new_title[len / sizeof(WCHAR)] = 0;
748
            free( console->title );
749
            console->title = new_title;
750
	    evt.event = CONSOLE_RENDERER_TITLE_EVENT;
751
	    console_input_events_append( console, &evt );
752 753 754 755 756 757
        }
    }
    if (req->mask & SET_CONSOLE_INPUT_INFO_HISTORY_MODE)
    {
	console->history_mode = req->history_mode;
    }
758
    if ((req->mask & SET_CONSOLE_INPUT_INFO_HISTORY_SIZE) &&
759 760 761 762 763 764 765 766 767 768 769 770 771
	console->history_size != req->history_size)
    {
	WCHAR**	mem = NULL;
	int	i;
	int	delta;

	if (req->history_size)
	{
	    mem = mem_alloc( req->history_size * sizeof(WCHAR*) );
	    if (!mem) goto error;
	    memset( mem, 0, req->history_size * sizeof(WCHAR*) );
	}

772
	delta = (console->history_index > req->history_size) ?
773 774 775 776 777 778 779 780 781 782
	    (console->history_index - req->history_size) : 0;

	for (i = delta; i < console->history_index; i++)
	{
	    mem[i - delta] = console->history[i];
	    console->history[i] = NULL;
	}
	console->history_index -= delta;

	for (i = 0; i < console->history_size; i++)
783
	    free( console->history[i] );
784 785 786 787
	free( console->history );
	console->history = mem;
	console->history_size = req->history_size;
    }
788 789 790 791
    if (req->mask & SET_CONSOLE_INPUT_INFO_EDITION_MODE)
    {
        console->edition_mode = req->edition_mode;
    }
792 793 794 795 796 797 798 799
    if (req->mask & SET_CONSOLE_INPUT_INFO_INPUT_CODEPAGE)
    {
        console->input_cp = req->input_cp;
    }
    if (req->mask & SET_CONSOLE_INPUT_INFO_OUTPUT_CODEPAGE)
    {
        console->output_cp = req->output_cp;
    }
800 801 802 803
    if (req->mask & SET_CONSOLE_INPUT_INFO_WIN)
    {
        console->win = req->win;
    }
804 805 806 807 808 809 810
    release_object( console );
    return 1;
 error:
    if (console) release_object( console );
    return 0;
}

811 812 813 814 815 816 817 818 819 820 821 822 823 824 825 826 827 828 829 830 831 832 833 834 835 836 837 838 839 840 841 842 843 844 845 846 847 848 849 850 851 852 853 854 855 856 857 858 859 860 861 862
/* resize a screen buffer */
static int change_screen_buffer_size( struct screen_buffer *screen_buffer,
                                      int new_width, int new_height )
{
    int i, old_width, old_height, copy_width, copy_height;
    char_info_t *new_data;

    if (!(new_data = malloc( new_width * new_height * sizeof(*new_data) )))
    {
        set_error( STATUS_NO_MEMORY );
        return 0;
    }
    old_width = screen_buffer->width;
    old_height = screen_buffer->height;
    copy_width = min( old_width, new_width );
    copy_height = min( old_height, new_height );

    /* copy all the rows */
    for (i = 0; i < copy_height; i++)
    {
        memcpy( &new_data[i * new_width], &screen_buffer->data[i * old_width],
                copy_width * sizeof(char_info_t) );
    }

    /* clear the end of each row */
    if (new_width > old_width)
    {
        /* fill first row */
        for (i = old_width; i < new_width; i++) new_data[i] = empty_char_info;
        /* and blast it to the other rows */
        for (i = 1; i < copy_height; i++)
            memcpy( &new_data[i * new_width + old_width], &new_data[old_width],
                    (new_width - old_width) * sizeof(char_info_t) );
    }

    /* clear remaining rows */
    if (new_height > old_height)
    {
        /* fill first row */
        for (i = 0; i < new_width; i++) new_data[old_height * new_width + i] = empty_char_info;
        /* and blast it to the other rows */
        for (i = old_height+1; i < new_height; i++)
            memcpy( &new_data[i * new_width], &new_data[old_height * new_width],
                    new_width * sizeof(char_info_t) );
    }
    free( screen_buffer->data );
    screen_buffer->data = new_data;
    screen_buffer->width = new_width;
    screen_buffer->height = new_height;
    return 1;
}

863
/* set misc screen buffer information */
864 865
static int set_console_output_info( struct screen_buffer *screen_buffer,
                                    const struct set_console_output_info_request *req )
866 867 868
{
    struct console_renderer_event evt;

869
    memset(&evt.u, 0, sizeof(evt.u));
870 871 872 873 874 875 876
    if (req->mask & SET_CONSOLE_OUTPUT_INFO_CURSOR_GEOM)
    {
	if (req->cursor_size < 1 || req->cursor_size > 100)
	{
	    set_error( STATUS_INVALID_PARAMETER );
	    return 0;
	}
877
        if (screen_buffer->cursor_size != req->cursor_size ||
878 879 880 881 882 883 884
	    screen_buffer->cursor_visible != req->cursor_visible)
	{
	    screen_buffer->cursor_size    = req->cursor_size;
	    screen_buffer->cursor_visible = req->cursor_visible;
	    evt.event = CONSOLE_RENDERER_CURSOR_GEOM_EVENT;
	    evt.u.cursor_geom.size    = req->cursor_size;
	    evt.u.cursor_geom.visible = req->cursor_visible;
885
	    console_input_events_append( screen_buffer->input, &evt );
886 887 888 889
	}
    }
    if (req->mask & SET_CONSOLE_OUTPUT_INFO_CURSOR_POS)
    {
890
	if (req->cursor_x < 0 || req->cursor_x >= screen_buffer->width ||
891 892 893 894 895
	    req->cursor_y < 0 || req->cursor_y >= screen_buffer->height)
	{
	    set_error( STATUS_INVALID_PARAMETER );
	    return 0;
	}
896
	if (screen_buffer->cursor_x != req->cursor_x || screen_buffer->cursor_y != req->cursor_y)
897
	{
898 899
	    screen_buffer->cursor_x       = req->cursor_x;
	    screen_buffer->cursor_y       = req->cursor_y;
900 901 902
	    evt.event = CONSOLE_RENDERER_CURSOR_POS_EVENT;
	    evt.u.cursor_pos.x = req->cursor_x;
	    evt.u.cursor_pos.y = req->cursor_y;
903
	    console_input_events_append( screen_buffer->input, &evt );
904 905 906 907
	}
    }
    if (req->mask & SET_CONSOLE_OUTPUT_INFO_SIZE)
    {
908 909 910 911 912 913 914 915 916
        unsigned cc;

        /* new screen-buffer cannot be smaller than actual window */
	if (req->width < screen_buffer->win.right - screen_buffer->win.left + 1 ||
            req->height < screen_buffer->win.bottom - screen_buffer->win.top + 1)
	{
	    set_error( STATUS_INVALID_PARAMETER );
	    return 0;
	}
917 918
        /* FIXME: there are also some basic minimum and max size to deal with */
        if (!change_screen_buffer_size( screen_buffer, req->width, req->height )) return 0;
919 920 921 922

	evt.event = CONSOLE_RENDERER_SB_RESIZE_EVENT;
	evt.u.resize.width  = req->width;
	evt.u.resize.height = req->height;
923
	console_input_events_append( screen_buffer->input, &evt );
924

925 926 927
	evt.event = CONSOLE_RENDERER_UPDATE_EVENT;
	evt.u.update.top    = 0;
	evt.u.update.bottom = screen_buffer->height - 1;
928
	console_input_events_append( screen_buffer->input, &evt );
929 930 931 932 933 934 935 936 937 938 939 940 941 942 943 944 945 946 947 948 949 950 951 952 953 954 955 956 957 958 959

        /* scroll window to display sb */
        if (screen_buffer->win.right >= req->width)
        {       
            screen_buffer->win.right -= screen_buffer->win.left;
            screen_buffer->win.left = 0;
        }
        if (screen_buffer->win.bottom >= req->height)
        {       
            screen_buffer->win.bottom -= screen_buffer->win.top;
            screen_buffer->win.top = 0;
        }
        /* reset cursor if needed (normally, if cursor was outside of new sb, the
         * window has been shifted so that the new position of the cursor will be 
         * visible */
        cc = 0;
        if (screen_buffer->cursor_x >= req->width)
        {
            screen_buffer->cursor_x = req->width - 1;
            cc++;
        }
        if (screen_buffer->cursor_y >= req->height)
        {
            screen_buffer->cursor_y = req->height - 1;
            cc++;
        }
        if (cc)
        {
            evt.event = CONSOLE_RENDERER_CURSOR_POS_EVENT;
            evt.u.cursor_pos.x = req->cursor_x;
            evt.u.cursor_pos.y = req->cursor_y;
960
            console_input_events_append( screen_buffer->input, &evt );
961 962
        }

963
	if (screen_buffer == screen_buffer->input->active &&
964 965 966 967 968 969 970 971 972 973 974 975 976 977 978
	    screen_buffer->input->mode & ENABLE_WINDOW_INPUT)
	{
	    INPUT_RECORD	ir;
	    ir.EventType = WINDOW_BUFFER_SIZE_EVENT;
	    ir.Event.WindowBufferSizeEvent.dwSize.X = req->width;
	    ir.Event.WindowBufferSizeEvent.dwSize.Y = req->height;
	    write_console_input( screen_buffer->input, 1, &ir );
	}
    }
    if (req->mask & SET_CONSOLE_OUTPUT_INFO_ATTR)
    {
	screen_buffer->attr = req->attr;
    }
    if (req->mask & SET_CONSOLE_OUTPUT_INFO_DISPLAY_WINDOW)
    {
979
	if (req->win_left < 0 || req->win_left > req->win_right ||
980
	    req->win_right >= screen_buffer->width ||
981
	    req->win_top < 0  || req->win_top > req->win_bottom ||
982 983 984 985 986
	    req->win_bottom >= screen_buffer->height)
	{
	    set_error( STATUS_INVALID_PARAMETER );
	    return 0;
	}
987 988
	if (screen_buffer->win.left != req->win_left || screen_buffer->win.top != req->win_top ||
	    screen_buffer->win.right != req->win_right || screen_buffer->win.bottom != req->win_bottom)
989
	{
990 991 992 993
	    screen_buffer->win.left   = req->win_left;
	    screen_buffer->win.top    = req->win_top;
	    screen_buffer->win.right  = req->win_right;
	    screen_buffer->win.bottom = req->win_bottom;
994 995 996 997 998
	    evt.event = CONSOLE_RENDERER_DISPLAY_EVENT;
	    evt.u.display.left   = req->win_left;
	    evt.u.display.top    = req->win_top;
	    evt.u.display.width  = req->win_right - req->win_left + 1;
	    evt.u.display.height = req->win_bottom - req->win_top + 1;
999
	    console_input_events_append( screen_buffer->input, &evt );
1000 1001 1002 1003 1004 1005 1006 1007 1008 1009 1010 1011 1012 1013 1014 1015
	}
    }
    if (req->mask & SET_CONSOLE_OUTPUT_INFO_MAX_SIZE)
    {
	/* can only be done by renderer */
	if (current->process->console != screen_buffer->input)
	{
	    set_error( STATUS_INVALID_PARAMETER );
	    return 0;
	}

	screen_buffer->max_width  = req->max_width;
	screen_buffer->max_height = req->max_height;
    }

    return 1;
1016 1017
}

1018
/* appends a new line to history (history is a fixed size array) */
1019
static void console_input_append_hist( struct console_input* console, const WCHAR* buf, data_size_t len )
1020
{
1021 1022 1023
    WCHAR*	ptr = mem_alloc( (len + 1) * sizeof(WCHAR) );

    if (!ptr)
1024 1025
        return;

1026 1027 1028
    if (!console || !console->history_size)
    {
	set_error( STATUS_INVALID_PARAMETER ); /* FIXME */
1029
	free( ptr );
1030 1031 1032 1033 1034 1035 1036 1037 1038 1039 1040 1041 1042 1043 1044 1045 1046 1047 1048 1049 1050 1051 1052 1053
	return;
    }

    memcpy( ptr, buf, len * sizeof(WCHAR) );
    ptr[len] = 0;

    if (console->history_mode && console->history_index &&
	strncmpW( console->history[console->history_index - 1], ptr, len * sizeof(WCHAR) ) == 0)
    {
	/* ok, mode ask us to not use twice the same string...
	 * so just free mem and returns
	 */
	set_error( STATUS_ALIAS_EXISTS );
	free(ptr);
	return;
    }

    if (console->history_index < console->history_size)
    {
	console->history[console->history_index++] = ptr;
    }
    else
    {
	free( console->history[0]) ;
1054
	memmove( &console->history[0], &console->history[1],
1055 1056 1057
		 (console->history_size - 1) * sizeof(WCHAR*) );
	console->history[console->history_size - 1] = ptr;
    }
1058 1059
}

1060
/* returns a line from the cache */
1061
static data_size_t console_input_get_hist( struct console_input *console, int index )
1062
{
1063
    data_size_t ret = 0;
1064

1065 1066
    if (index >= console->history_index) set_error( STATUS_INVALID_PARAMETER );
    else
1067
    {
1068 1069
        ret = strlenW( console->history[index] ) * sizeof(WCHAR);
        set_reply_data( console->history[index], min( ret, get_reply_max_size() ));
1070 1071 1072 1073 1074 1075
    }
    return ret;
}

/* dumb dump */
static void console_input_dump( struct object *obj, int verbose )
1076
{
1077 1078
    struct console_input *console = (struct console_input *)obj;
    assert( obj->ops == &console_input_ops );
1079
    fprintf( stderr, "Console input active=%p evt=%p\n",
1080
	     console->active, console->evt );
1081 1082
}

1083 1084
static void console_input_destroy( struct object *obj )
{
1085 1086 1087 1088
    struct console_input*	console_in = (struct console_input *)obj;
    struct screen_buffer*	curr;
    int				i;

1089
    assert( obj->ops == &console_input_ops );
1090 1091
    free( console_in->title );
    free( console_in->records );
1092

1093
    if (console_in->active) release_object( console_in->active );
1094 1095
    console_in->active = NULL;

1096
    LIST_FOR_EACH_ENTRY( curr, &screen_buffer_list, struct screen_buffer, entry )
1097
    {
1098
        if (curr->input == console_in) curr->input = NULL;
1099 1100
    }

1101 1102 1103 1104 1105
    if (console_in->evt)
    {
        release_object( console_in->evt );
        console_in->evt = NULL;
    }
1106
    release_object( console_in->event );
1107 1108
    if (console_in->fd)
        release_object( console_in->fd );
1109 1110

    for (i = 0; i < console_in->history_size; i++)
1111
        free( console_in->history[i] );
1112
    free( console_in->history );
1113
}
1114

1115 1116
static void screen_buffer_dump( struct object *obj, int verbose )
{
1117
    struct screen_buffer *screen_buffer = (struct screen_buffer *)obj;
1118
    assert( obj->ops == &screen_buffer_ops );
1119 1120

    fprintf(stderr, "Console screen buffer input=%p\n", screen_buffer->input );
1121 1122
}

1123
static void screen_buffer_destroy( struct object *obj )
1124
{
1125
    struct screen_buffer *screen_buffer = (struct screen_buffer *)obj;
1126 1127 1128

    assert( obj->ops == &screen_buffer_ops );

1129
    list_remove( &screen_buffer->entry );
1130

1131 1132
    if (screen_buffer->input && screen_buffer->input->active == screen_buffer)
    {
1133 1134 1135 1136 1137 1138 1139 1140 1141 1142 1143
        struct screen_buffer *sb;

        screen_buffer->input->active = NULL;
        LIST_FOR_EACH_ENTRY( sb, &screen_buffer_list, struct screen_buffer, entry )
        {
            if (sb->input == screen_buffer->input)
            {
                sb->input->active = sb;
                break;
            }
        }
1144
    }
1145
    if (screen_buffer->fd) release_object( screen_buffer->fd );
1146
    free( screen_buffer->data );
1147 1148
}

1149 1150 1151 1152
static struct fd *screen_buffer_get_fd( struct object *obj )
{
    struct screen_buffer *screen_buffer = (struct screen_buffer*)obj;
    assert( obj->ops == &screen_buffer_ops );
1153 1154 1155 1156
    if (screen_buffer->fd)
        return (struct fd*)grab_object( screen_buffer->fd );
    set_error( STATUS_OBJECT_TYPE_MISMATCH );
    return NULL;
1157 1158
}

1159
/* write data into a screen buffer */
1160
static int write_console_output( struct screen_buffer *screen_buffer, data_size_t size,
1161 1162
                                 const void* data, enum char_info_mode mode,
                                 int x, int y, int wrap )
1163
{
1164
    unsigned int i;
1165
    char_info_t *end, *dest = screen_buffer->data + y * screen_buffer->width + x;
1166

1167 1168 1169 1170 1171 1172
    if (y >= screen_buffer->height) return 0;

    if (wrap)
        end = screen_buffer->data + screen_buffer->height * screen_buffer->width;
    else
        end = screen_buffer->data + (y+1) * screen_buffer->width;
1173

1174
    switch(mode)
1175
    {
1176 1177 1178 1179 1180 1181 1182 1183 1184 1185 1186 1187 1188 1189 1190 1191 1192 1193 1194 1195 1196 1197 1198 1199 1200 1201 1202 1203 1204 1205 1206
    case CHAR_INFO_MODE_TEXT:
        {
            const WCHAR *ptr = data;
            for (i = 0; i < size/sizeof(*ptr) && dest < end; dest++, i++) dest->ch = ptr[i];
        }
        break;
    case CHAR_INFO_MODE_ATTR:
        {
            const unsigned short *ptr = data;
            for (i = 0; i < size/sizeof(*ptr) && dest < end; dest++, i++) dest->attr = ptr[i];
        }
        break;
    case CHAR_INFO_MODE_TEXTATTR:
        {
            const char_info_t *ptr = data;
            for (i = 0; i < size/sizeof(*ptr) && dest < end; dest++, i++) *dest = ptr[i];
        }
        break;
    case CHAR_INFO_MODE_TEXTSTDATTR:
        {
            const WCHAR *ptr = data;
            for (i = 0; i < size/sizeof(*ptr) && dest < end; dest++, i++)
            {
                dest->ch   = ptr[i];
                dest->attr = screen_buffer->attr;
            }
        }
        break;
    default:
        set_error( STATUS_INVALID_PARAMETER );
        return 0;
1207 1208
    }

1209 1210 1211 1212
    if (i && screen_buffer == screen_buffer->input->active)
    {
        struct console_renderer_event evt;
        evt.event = CONSOLE_RENDERER_UPDATE_EVENT;
1213
        memset(&evt.u, 0, sizeof(evt.u));
1214 1215
        evt.u.update.top    = y + x / screen_buffer->width;
        evt.u.update.bottom = y + (x + i - 1) / screen_buffer->width;
1216
        console_input_events_append( screen_buffer->input, &evt );
1217 1218 1219
    }
    return i;
}
1220

1221 1222 1223 1224 1225 1226 1227 1228 1229 1230 1231 1232 1233
/* fill a screen buffer with uniform data */
static int fill_console_output( struct screen_buffer *screen_buffer, char_info_t data,
                                enum char_info_mode mode, int x, int y, int count, int wrap )
{
    int i;
    char_info_t *end, *dest = screen_buffer->data + y * screen_buffer->width + x;

    if (y >= screen_buffer->height) return 0;

    if (wrap)
        end = screen_buffer->data + screen_buffer->height * screen_buffer->width;
    else
        end = screen_buffer->data + (y+1) * screen_buffer->width;
1234

1235 1236 1237
    if (count > end - dest) count = end - dest;

    switch(mode)
1238
    {
1239 1240 1241 1242 1243 1244 1245 1246 1247 1248 1249 1250 1251 1252 1253 1254 1255 1256 1257
    case CHAR_INFO_MODE_TEXT:
        for (i = 0; i < count; i++) dest[i].ch = data.ch;
        break;
    case CHAR_INFO_MODE_ATTR:
        for (i = 0; i < count; i++) dest[i].attr = data.attr;
        break;
    case CHAR_INFO_MODE_TEXTATTR:
        for (i = 0; i < count; i++) dest[i] = data;
        break;
    case CHAR_INFO_MODE_TEXTSTDATTR:
        for (i = 0; i < count; i++)
        {
            dest[i].ch   = data.ch;
            dest[i].attr = screen_buffer->attr;
        }
        break;
    default:
        set_error( STATUS_INVALID_PARAMETER );
        return 0;
1258 1259
    }

1260
    if (count && screen_buffer == screen_buffer->input->active)
1261
    {
1262 1263
        struct console_renderer_event evt;
        evt.event = CONSOLE_RENDERER_UPDATE_EVENT;
1264
        memset(&evt.u, 0, sizeof(evt.u));
1265 1266
        evt.u.update.top    = y;
        evt.u.update.bottom = (y * screen_buffer->width + x + count - 1) / screen_buffer->width;
1267
        console_input_events_append( screen_buffer->input, &evt );
1268
    }
1269
    return i;
1270 1271
}

1272
/* read data from a screen buffer */
1273 1274
static void read_console_output( struct screen_buffer *screen_buffer, int x, int y,
                                 enum char_info_mode mode, int wrap )
1275
{
1276 1277
    int i;
    char_info_t *end, *src = screen_buffer->data + y * screen_buffer->width + x;
1278

1279
    if (y >= screen_buffer->height) return;
1280

1281 1282 1283 1284
    if (wrap)
        end = screen_buffer->data + screen_buffer->height * screen_buffer->width;
    else
        end = screen_buffer->data + (y+1) * screen_buffer->width;
1285

1286
    switch(mode)
1287
    {
1288 1289 1290 1291 1292 1293 1294 1295 1296 1297 1298 1299 1300 1301 1302 1303 1304 1305 1306 1307 1308 1309 1310 1311 1312 1313 1314 1315 1316 1317 1318 1319 1320
    case CHAR_INFO_MODE_TEXT:
        {
            WCHAR *data;
            int count = min( end - src, get_reply_max_size() / sizeof(*data) );
            if ((data = set_reply_data_size( count * sizeof(*data) )))
            {
                for (i = 0; i < count; i++) data[i] = src[i].ch;
            }
        }
        break;
    case CHAR_INFO_MODE_ATTR:
        {
            unsigned short *data;
            int count = min( end - src, get_reply_max_size() / sizeof(*data) );
            if ((data = set_reply_data_size( count * sizeof(*data) )))
            {
                for (i = 0; i < count; i++) data[i] = src[i].attr;
            }
        }
        break;
    case CHAR_INFO_MODE_TEXTATTR:
        {
            char_info_t *data;
            int count = min( end - src, get_reply_max_size() / sizeof(*data) );
            if ((data = set_reply_data_size( count * sizeof(*data) )))
            {
                for (i = 0; i < count; i++) data[i] = src[i];
            }
        }
        break;
    default:
        set_error( STATUS_INVALID_PARAMETER );
        break;
1321
    }
1322
}
1323

1324
/* scroll parts of a screen buffer */
1325
static void scroll_console_output( struct screen_buffer *screen_buffer, int xsrc, int ysrc, int xdst, int ydst,
1326
                                   int w, int h )
1327
{
1328
    int				j;
1329
    char_info_t *psrc, *pdst;
1330
    struct console_renderer_event evt;
1331

1332 1333 1334 1335 1336 1337 1338 1339 1340 1341
    if (xsrc < 0 || ysrc < 0 || xdst < 0 || ydst < 0 ||
	xsrc + w > screen_buffer->width  ||
	xdst + w > screen_buffer->width  ||
	ysrc + h > screen_buffer->height ||
	ydst + h > screen_buffer->height ||
	w == 0 || h == 0)
    {
	set_error( STATUS_INVALID_PARAMETER );
	return;
    }
1342

1343
    if (ysrc < ydst)
1344
    {
1345 1346 1347 1348 1349
	psrc = &screen_buffer->data[(ysrc + h - 1) * screen_buffer->width + xsrc];
	pdst = &screen_buffer->data[(ydst + h - 1) * screen_buffer->width + xdst];

	for (j = h; j > 0; j--)
	{
1350
	    memcpy(pdst, psrc, w * sizeof(*pdst) );
1351 1352 1353
	    pdst -= screen_buffer->width;
	    psrc -= screen_buffer->width;
	}
1354
    }
1355 1356 1357 1358 1359 1360 1361
    else
    {
	psrc = &screen_buffer->data[ysrc * screen_buffer->width + xsrc];
	pdst = &screen_buffer->data[ydst * screen_buffer->width + xdst];

	for (j = 0; j < h; j++)
	{
1362
	    /* we use memmove here because when psrc and pdst are the same,
1363 1364
	     * copies are done on the same row, so the dst and src blocks
	     * can overlap */
1365
	    memmove( pdst, psrc, w * sizeof(*pdst) );
1366 1367 1368 1369 1370 1371 1372
	    pdst += screen_buffer->width;
	    psrc += screen_buffer->width;
	}
    }

    /* FIXME: this could be enhanced, by signalling scroll */
    evt.event = CONSOLE_RENDERER_UPDATE_EVENT;
1373
    memset(&evt.u, 0, sizeof(evt.u));
1374 1375
    evt.u.update.top    = min(ysrc, ydst);
    evt.u.update.bottom = max(ysrc, ydst) + h - 1;
1376
    console_input_events_append( screen_buffer->input, &evt );
1377 1378 1379 1380 1381
}

/* allocate a console for the renderer */
DECL_HANDLER(alloc_console)
{
1382 1383
    obj_handle_t in = 0;
    obj_handle_t evt = 0;
1384
    struct process *process;
1385
    struct thread *renderer;
1386
    struct console_input *console;
1387
    int fd;
1388
    int attach = 0;
1389

1390
    switch (req->pid)
1391
    {
1392 1393 1394
    case 0:
        /* renderer is current, console to be attached to parent process */
        renderer = current;
1395
        if (!(process = current->process->parent))
1396 1397 1398 1399 1400
        {
            set_error( STATUS_ACCESS_DENIED );
            return;
        }
        grab_object( process );
1401
        attach = 1;
1402 1403 1404 1405 1406 1407
        break;
    case 0xffffffff:
        /* no renderer, console to be attached to current process */
        renderer = NULL;
        process = current->process;
        grab_object( process );
1408
        attach = 1;
1409 1410 1411 1412 1413
        break;
    default:
        /* renderer is current, console to be attached to req->pid */
        renderer = current;
        if (!(process = get_process_from_id( req->pid ))) return;
1414
    }
1415

1416
    if (attach && process->console)
1417
    {
1418
        set_error( STATUS_ACCESS_DENIED );
1419 1420 1421 1422 1423 1424 1425 1426 1427 1428 1429 1430 1431
        goto the_end;
    }
    if (req->input_fd != -1)
    {
        if ((fd = thread_get_inflight_fd( current, req->input_fd )) == -1)
        {
            set_error( STATUS_INVALID_PARAMETER );
            goto the_end;
        }
    }
    else fd = -1;

    if ((console = (struct console_input*)create_console_input( renderer, fd )))
1432
    {
1433
        if ((in = alloc_handle( current->process, console, req->access, req->attributes )))
1434
        {
1435 1436
            if (!console->evt ||
                (evt = alloc_handle( current->process, console->evt, SYNCHRONIZE|GENERIC_READ|GENERIC_WRITE, 0 )))
1437
            {
1438 1439 1440 1441 1442
                if (attach)
                {
                    process->console = (struct console_input*)grab_object( console );
                    console->num_proc++;
                }
1443 1444 1445 1446 1447
                reply->handle_in = in;
                reply->event = evt;
                release_object( console );
                goto the_end;
            }
1448
            close_handle( current->process, in );
1449
        }
1450
        release_object( console );
1451 1452 1453
    }
 the_end:
    release_object( process );
1454 1455 1456 1457 1458 1459 1460 1461
}

/* free the console of the current process */
DECL_HANDLER(free_console)
{
    free_console( current->process );
}

1462 1463 1464
/* let the renderer peek the events it's waiting on */
DECL_HANDLER(get_console_renderer_events)
{
1465
    struct console_input_events *evt;
1466 1467

    evt = (struct console_input_events *)get_handle_obj( current->process, req->handle,
1468
                                                         FILE_READ_PROPERTIES, &console_input_events_ops );
1469
    if (!evt) return;
1470
    console_input_events_get( evt );
1471 1472 1473
    release_object( evt );
}

1474 1475 1476
/* open a handle to the process console */
DECL_HANDLER(open_console)
{
1477
    struct object      *obj = NULL;
1478

1479
    reply->handle = 0;
1480
    if (!req->from)
1481
    {
1482
        if (current->process->console)
1483
            obj = grab_object( (struct object*)current->process->console );
1484 1485 1486
    }
    else if (req->from == (obj_handle_t)1)
    {
1487 1488
        if (current->process->console && current->process->console->active)
            obj = grab_object( (struct object*)current->process->console->active );
1489 1490
    }
    else if ((obj = get_handle_obj( current->process, req->from,
1491
                                    FILE_READ_PROPERTIES|FILE_WRITE_PROPERTIES, &console_input_ops )))
1492 1493 1494 1495
    {
        struct console_input *console = (struct console_input *)obj;
        obj = (console->active) ? grab_object( console->active ) : NULL;
        release_object( console );
1496 1497 1498 1499 1500
    }

    /* FIXME: req->share is not used (as in screen buffer creation)  */
    if (obj)
    {
1501
        reply->handle = alloc_handle( current->process, obj, req->access, req->attributes );
1502
        release_object( obj );
1503
    }
1504
    else if (!get_error()) set_error( STATUS_ACCESS_DENIED );
1505 1506
}

1507 1508
/* set info about a console input */
DECL_HANDLER(set_console_input_info)
1509
{
1510
    set_console_input_info( req, get_req_data(), get_req_data_size() );
1511 1512 1513
}

/* get info about a console (output only) */
1514
DECL_HANDLER(get_console_input_info)
1515
{
1516
    struct console_input *console;
1517

1518
    if (!(console = console_input_get( req->handle, FILE_READ_PROPERTIES ))) return;
1519
    if (console->title)
1520
    {
1521
        data_size_t len = strlenW( console->title ) * sizeof(WCHAR);
1522 1523
        if (len > get_reply_max_size()) len = get_reply_max_size();
        set_reply_data( console->title, len );
1524
    }
1525 1526 1527
    reply->history_mode  = console->history_mode;
    reply->history_size  = console->history_size;
    reply->history_index = console->history_index;
1528
    reply->edition_mode  = console->edition_mode;
1529 1530
    reply->input_cp      = console->input_cp;
    reply->output_cp     = console->output_cp;
1531
    reply->win           = console->win;
1532

1533
    release_object( console );
1534 1535 1536 1537 1538
}

/* get a console mode (input or output) */
DECL_HANDLER(get_console_mode)
{
1539
    reply->mode = get_console_mode( req->handle );
1540 1541 1542 1543 1544 1545 1546 1547 1548 1549 1550
}

/* set a console mode (input or output) */
DECL_HANDLER(set_console_mode)
{
    set_console_mode( req->handle, req->mode );
}

/* add input records to a console input queue */
DECL_HANDLER(write_console_input)
{
1551 1552
    struct console_input *console;

1553
    reply->written = 0;
1554
    if (!(console = (struct console_input *)get_handle_obj( current->process, req->handle,
1555
                                                            FILE_WRITE_PROPERTIES, &console_input_ops )))
1556
        return;
1557 1558
    reply->written = write_console_input( console, get_req_data_size() / sizeof(INPUT_RECORD),
                                          get_req_data() );
1559
    release_object( console );
1560 1561 1562 1563 1564
}

/* fetch input records from a console input queue */
DECL_HANDLER(read_console_input)
{
1565 1566
    int count = get_reply_max_size() / sizeof(INPUT_RECORD);
    reply->read = read_console_input( req->handle, count, req->flush );
1567
}
1568 1569 1570 1571

/* appends a string to console's history */
DECL_HANDLER(append_console_input_history)
{
1572
    struct console_input *console;
1573

1574
    if (!(console = console_input_get( req->handle, FILE_WRITE_PROPERTIES ))) return;
1575
    console_input_append_hist( console, get_req_data(), get_req_data_size() / sizeof(WCHAR) );
1576 1577 1578 1579 1580 1581
    release_object( console );
}

/* appends a string to console's history */
DECL_HANDLER(get_console_input_history)
{
1582
    struct console_input *console;
1583

1584
    if (!(console = console_input_get( req->handle, FILE_READ_PROPERTIES ))) return;
1585
    reply->total = console_input_get_hist( console, req->index );
1586 1587 1588 1589 1590 1591 1592 1593
    release_object( console );
}

/* creates a screen buffer */
DECL_HANDLER(create_console_output)
{
    struct console_input*	console;
    struct screen_buffer*	screen_buffer;
1594
    int                         fd;
1595

1596 1597 1598 1599
    if (req->fd != -1)
    {
        if ((fd = thread_get_inflight_fd( current, req->fd )) == -1)
        {
1600
            set_error( STATUS_INVALID_HANDLE );
1601 1602 1603 1604 1605 1606 1607 1608 1609
            return;
        }
    }
    else fd = -1;
    if (!(console = console_input_get( req->handle_in, FILE_WRITE_PROPERTIES )))
    {
        close(fd);
        return;
    }
1610 1611 1612
    if (console_input_is_bare( console ) ^ (fd != -1))
    {
        close( fd );
1613
        release_object( console );
1614 1615 1616
        set_error( STATUS_INVALID_HANDLE );
        return;
    }
1617

1618
    screen_buffer = create_console_output( console, fd );
1619 1620
    if (screen_buffer)
    {
1621
        /* FIXME: should store sharing and test it when opening the CONOUT$ device
1622
         * see file.c on how this could be done */
1623
        reply->handle_out = alloc_handle( current->process, screen_buffer, req->access, req->attributes );
1624
        release_object( screen_buffer );
1625 1626 1627 1628 1629 1630 1631
    }
    release_object( console );
}

/* set info about a console screen buffer */
DECL_HANDLER(set_console_output_info)
{
1632
    struct screen_buffer *screen_buffer;
1633

1634
    if ((screen_buffer = (struct screen_buffer*)get_handle_obj( current->process, req->handle,
1635
                                                                FILE_WRITE_PROPERTIES, &screen_buffer_ops)))
1636 1637 1638 1639
    {
        set_console_output_info( screen_buffer, req );
        release_object( screen_buffer );
    }
1640 1641 1642 1643 1644 1645 1646 1647
}

/* get info about a console screen buffer */
DECL_HANDLER(get_console_output_info)
{
    struct screen_buffer *screen_buffer;

    if ((screen_buffer = (struct screen_buffer *)get_handle_obj( current->process, req->handle,
1648
                                                                 FILE_READ_PROPERTIES, &screen_buffer_ops)))
1649
    {
1650 1651 1652 1653 1654 1655 1656 1657 1658 1659 1660 1661 1662
        reply->cursor_size    = screen_buffer->cursor_size;
        reply->cursor_visible = screen_buffer->cursor_visible;
        reply->cursor_x       = screen_buffer->cursor_x;
        reply->cursor_y       = screen_buffer->cursor_y;
        reply->width          = screen_buffer->width;
        reply->height         = screen_buffer->height;
        reply->attr           = screen_buffer->attr;
        reply->win_left       = screen_buffer->win.left;
        reply->win_top        = screen_buffer->win.top;
        reply->win_right      = screen_buffer->win.right;
        reply->win_bottom     = screen_buffer->win.bottom;
        reply->max_width      = screen_buffer->max_width;
        reply->max_height     = screen_buffer->max_height;
1663 1664 1665 1666 1667 1668 1669
        release_object( screen_buffer );
    }
}

/* read data (chars & attrs) from a screen buffer */
DECL_HANDLER(read_console_output)
{
1670
    struct screen_buffer *screen_buffer;
1671

1672
    if ((screen_buffer = (struct screen_buffer*)get_handle_obj( current->process, req->handle,
1673
                                                                FILE_READ_DATA, &screen_buffer_ops )))
1674
    {
1675 1676 1677 1678 1679 1680
        if (console_input_is_bare( screen_buffer->input ))
        {
            set_error( STATUS_OBJECT_TYPE_MISMATCH );
            release_object( screen_buffer );
            return;
        }
1681 1682 1683 1684 1685
        read_console_output( screen_buffer, req->x, req->y, req->mode, req->wrap );
        reply->width  = screen_buffer->width;
        reply->height = screen_buffer->height;
        release_object( screen_buffer );
    }
1686 1687 1688 1689 1690
}

/* write data (char and/or attrs) to a screen buffer */
DECL_HANDLER(write_console_output)
{
1691
    struct screen_buffer *screen_buffer;
1692

1693
    if ((screen_buffer = (struct screen_buffer*)get_handle_obj( current->process, req->handle,
1694
                                                                FILE_WRITE_DATA, &screen_buffer_ops)))
1695
    {
1696 1697 1698 1699 1700 1701
        if (console_input_is_bare( screen_buffer->input ))
        {
            set_error( STATUS_OBJECT_TYPE_MISMATCH );
            release_object( screen_buffer );
            return;
        }
1702 1703 1704 1705 1706 1707 1708
        reply->written = write_console_output( screen_buffer, get_req_data_size(), get_req_data(),
                                               req->mode, req->x, req->y, req->wrap );
        reply->width  = screen_buffer->width;
        reply->height = screen_buffer->height;
        release_object( screen_buffer );
    }
}
1709

1710 1711 1712 1713
/* fill a screen buffer with constant data (chars and/or attributes) */
DECL_HANDLER(fill_console_output)
{
    struct screen_buffer *screen_buffer;
1714

1715
    if ((screen_buffer = (struct screen_buffer*)get_handle_obj( current->process, req->handle,
1716
                                                                FILE_WRITE_DATA, &screen_buffer_ops)))
1717
    {
1718 1719 1720 1721 1722 1723
        if (console_input_is_bare( screen_buffer->input ))
        {
            set_error( STATUS_OBJECT_TYPE_MISMATCH );
            release_object( screen_buffer );
            return;
        }
1724 1725 1726 1727
        reply->written = fill_console_output( screen_buffer, req->data, req->mode,
                                              req->x, req->y, req->count, req->wrap );
        release_object( screen_buffer );
    }
1728 1729 1730 1731 1732
}

/* move a rect of data in a screen buffer */
DECL_HANDLER(move_console_output)
{
1733 1734 1735 1736 1737 1738 1739 1740 1741 1742 1743 1744 1745 1746 1747
    struct screen_buffer *screen_buffer;

    if ((screen_buffer = (struct screen_buffer*)get_handle_obj( current->process, req->handle,
                                                                FILE_WRITE_DATA, &screen_buffer_ops)))
    {
        if (console_input_is_bare( screen_buffer->input ))
        {
            set_error( STATUS_OBJECT_TYPE_MISMATCH );
            release_object( screen_buffer );
            return;
        }
        scroll_console_output( screen_buffer, req->x_src, req->y_src, req->x_dst, req->y_dst,
                               req->w, req->h );
        release_object( screen_buffer );
    }
1748
}
1749 1750 1751 1752

/* sends a signal to a console (process, group...) */
DECL_HANDLER(send_console_signal)
{
1753
    process_id_t group;
1754 1755 1756 1757

    group = req->group_id ? req->group_id : current->process->group_id;

    if (!group)
1758
        set_error( STATUS_INVALID_PARAMETER );
1759 1760 1761
    else
        propagate_console_signal( current->process->console, req->signal, group );
}
1762 1763 1764 1765 1766 1767 1768 1769 1770 1771 1772 1773 1774 1775 1776 1777

/* get console which renderer is 'current' */
static int cgwe_enum( struct process* process, void* user)
{
    if (process->console && process->console->renderer == current)
    {
        *(struct console_input**)user = process->console;
        return 1;
    }
    return 0;
}

DECL_HANDLER(get_console_wait_event)
{
    struct console_input* console = NULL;

1778
    if (current->process->console)
1779 1780 1781 1782 1783
        console = (struct console_input*)grab_object( (struct object*)current->process->console );
    else enum_processes(cgwe_enum, &console);

    if (console)
    {
1784
        reply->handle = alloc_handle( current->process, console->event, EVENT_ALL_ACCESS, 0 );
1785 1786 1787 1788
        release_object( console );
    }
    else set_error( STATUS_INVALID_PARAMETER );
}