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Sweden-Number/server/console.c

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/*
* Server-side console management
*
* Copyright (C) 1998 Alexandre Julliard
* 2001 Eric Pouech
*
*/
#include "config.h"
#include <assert.h>
#include <string.h>
#include <stdio.h>
#include <unistd.h>
#include "winnt.h"
#include "winbase.h"
#include "wincon.h"
#include "handle.h"
#include "process.h"
#include "request.h"
#include "unicode.h"
#include "console.h"
static void console_input_dump( struct object *obj, int verbose );
static void console_input_destroy( struct object *obj );
static int console_input_signaled( struct object *obj, struct thread *thread );
/* common routine */
static int console_get_file_info( struct object *obj, struct get_file_info_request *req );
static const struct object_ops console_input_ops =
{
sizeof(struct console_input), /* size */
console_input_dump, /* dump */
add_queue, /* add_queue */
remove_queue, /* remove_queue */
console_input_signaled, /* signaled */
no_satisfied, /* satisfied */
NULL, /* get_poll_events */
NULL, /* poll_event */
no_get_fd, /* get_fd */
no_flush, /* flush */
console_get_file_info, /* get_file_info */
console_input_destroy /* destroy */
};
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 );
struct console_input_events
{
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 */
add_queue, /* add_queue */
remove_queue, /* remove_queue */
console_input_events_signaled, /* signaled */
no_satisfied, /* satisfied */
NULL, /* get_poll_events */
NULL, /* poll_event */
no_get_fd, /* get_fd */
no_flush, /* flush */
no_get_file_info, /* get_file_info */
console_input_events_destroy /* destroy */
};
struct screen_buffer
{
struct object obj; /* object header */
int mode; /* output mode */
struct console_input *input; /* associated console input */
struct screen_buffer *next; /* linked list of all screen buffers */
short int cursor_size; /* size of cursor (percentage filled) */
short int cursor_visible;/* cursor visibility flag */
COORD cursor; /* position of cursor */
short int width; /* size (w-h) of the screen buffer */
short int height;
short int max_width; /* size (w-h) of the window given font size */
short int max_height;
unsigned *data; /* the data for each cell - a width x height matrix */
unsigned short attr; /* default attribute for screen buffer */
SMALL_RECT win; /* current visible window on the screen buffer *
* as seen in wineconsole */
};
static void screen_buffer_dump( struct object *obj, int verbose );
static void screen_buffer_destroy( struct object *obj );
static const struct object_ops screen_buffer_ops =
{
sizeof(struct screen_buffer), /* size */
screen_buffer_dump, /* dump */
no_add_queue, /* add_queue */
NULL, /* remove_queue */
NULL, /* signaled */
NULL, /* satisfied */
NULL, /* get_poll_events */
NULL, /* poll_event */
no_get_fd, /* get_fd */
no_flush, /* flush */
console_get_file_info, /* get_file_info */
screen_buffer_destroy /* destroy */
};
static struct screen_buffer *screen_buffer_list;
/* 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 );
fprintf( stderr, "Console input events: %d/%d events\n",
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 );
}
/* the rendere events list is signaled when it's not empty */
static int console_input_events_signaled( struct object *obj, struct thread *thread )
{
struct console_input_events *evts = (struct console_input_events *)obj;
assert( obj->ops == &console_input_events_ops );
return evts->num_used ? 1 : 0;
}
/* add an event to the console's renderer events list */
static void console_input_events_append( struct console_input_events* evts,
struct console_renderer_event* evt)
{
if (!evt) return;
/* to be done even when the renderer generates the events ? */
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;
wake_up( &evts->obj, 0 );
}
/* retrieves events from the console's renderer events list */
static size_t console_input_events_get( struct console_input_events* evts,
struct console_renderer_event* evt, size_t num )
{
if (num % sizeof(*evt) != 0)
{
set_error( STATUS_INVALID_PARAMETER );
return 0;
}
num /= sizeof(*evt);
if (num > evts->num_used)
num = evts->num_used;
memcpy( evt, evts->events, num * sizeof(*evt) );
if (num < evts->num_used)
{
memmove( &evts->events[0], &evts->events[num],
(evts->num_used - num) * sizeof(*evt) );
}
evts->num_used -= num;
return num * sizeof(struct console_renderer_event);
}
static struct console_input_events *create_console_input_events(void)
{
struct console_input_events* evt;
if (!(evt = alloc_object( &console_input_events_ops, -1 ))) return NULL;
evt->num_alloc = evt->num_used = 0;
evt->events = NULL;
return evt;
}
static struct object *create_console_input( struct process* renderer )
{
struct console_input *console_input;
if (!(console_input = alloc_object( &console_input_ops, -1 ))) return NULL;
console_input->renderer = renderer;
console_input->mode = ENABLE_PROCESSED_INPUT | ENABLE_LINE_INPUT |
ENABLE_ECHO_INPUT | ENABLE_MOUSE_INPUT;
console_input->num_proc = 0;
console_input->active = NULL;
console_input->recnum = 0;
console_input->records = NULL;
console_input->evt = create_console_input_events();
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;
if (!console_input->history || !console_input->evt)
{
release_object( console_input );
return NULL;
}
return &console_input->obj;
}
static struct object *create_console_output( struct console_input *console_input )
{
struct screen_buffer *screen_buffer;
struct console_renderer_event evt;
int i;
if (!(screen_buffer = alloc_object( &screen_buffer_ops, -1 ))) return NULL;
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;
screen_buffer->width = 80;
screen_buffer->height = 150;
screen_buffer->max_width = 80;
screen_buffer->max_height = 25;
screen_buffer->data = malloc( 4 * screen_buffer->width * screen_buffer->height );
/* fill the buffer with white on black spaces */
for (i = 0; i < screen_buffer->width * screen_buffer->height; i++)
{
screen_buffer->data[i] = 0x00F00020;
}
screen_buffer->cursor.X = 0;
screen_buffer->cursor.Y = 0;
screen_buffer->attr = 0xF0;
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;
screen_buffer->next = screen_buffer_list;
screen_buffer_list = screen_buffer;
if (!console_input->active)
{
console_input->active = (struct screen_buffer*)grab_object( screen_buffer );
/* generate the fist events */
evt.event = CONSOLE_RENDERER_ACTIVE_SB_EVENT;
console_input_events_append( console_input->evt, &evt );
evt.event = CONSOLE_RENDERER_SB_RESIZE_EVENT;
evt.u.resize.width = screen_buffer->width;
evt.u.resize.height = screen_buffer->height;
console_input_events_append( console_input->evt, &evt );
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;
console_input_events_append( console_input->evt, &evt );
evt.event = CONSOLE_RENDERER_UPDATE_EVENT;
evt.u.update.top = 0;
evt.u.update.bottom = screen_buffer->height - 1;
console_input_events_append( console_input->evt, &evt );
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;
console_input_events_append( console_input->evt, &evt );
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;
console_input_events_append( console_input->evt, &evt );
}
return &screen_buffer->obj;
}
/* free the console for this process */
int free_console( struct process *process )
{
struct console_input* console = process->console;
if (!console || !console->renderer) return 0;
process->console = NULL;
if (--console->num_proc == 0)
{
/* all processes have terminated... tell the renderer to terminate too */
struct console_renderer_event evt;
evt.event = CONSOLE_RENDERER_EXIT_EVENT;
console_input_events_append( console->evt, &evt );
}
release_object( console );
return 1;
}
/* 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
*/
void inherit_console(struct process *parent, struct process *process, handle_t hconin)
{
int done = 0;
/* if parent is a renderer, then attach current process to its console
* a bit hacky....
*/
if (hconin)
{
struct console_input* console;
if ((console = (struct console_input*)get_handle_obj( parent, hconin, 0, NULL )))
{
if (console->renderer == parent)
{
process->console = (struct console_input*)grab_object( console );
process->console->num_proc++;
done = 1;
}
release_object( console );
}
}
/* otherwise, if parent has a console, attach child to this console */
if (!done && parent->console)
{
assert(parent->console->renderer);
process->console = (struct console_input*)grab_object( parent->console );
process->console->num_proc++;
}
}
static struct console_input* console_input_get( handle_t handle, unsigned access )
{
struct console_input* console = 0;
if (handle)
console = (struct console_input *)get_handle_obj( current->process, handle,
access, &console_input_ops );
else if (current->process->console)
{
assert( current->process->console->renderer );
console = (struct console_input *)grab_object( current->process->console );
}
if (!console && !get_error()) set_error(STATUS_INVALID_PARAMETER);
return console;
}
/* check if a console input is signaled: yes if non read input records */
static int console_input_signaled( struct object *obj, struct thread *thread )
{
struct console_input *console = (struct console_input *)obj;
assert( obj->ops == &console_input_ops );
return console->recnum ? 1 : 0;
}
static int get_console_mode( handle_t handle )
{
struct object *obj;
int ret = 0;
if ((obj = get_handle_obj( current->process, handle, GENERIC_READ, NULL )))
{
if (obj->ops == &console_input_ops)
ret = ((struct console_input *)obj)->mode;
else if (obj->ops == &screen_buffer_ops)
ret = ((struct screen_buffer *)obj)->mode;
else
set_error( STATUS_OBJECT_TYPE_MISMATCH );
release_object( obj );
}
return ret;
}
/* changes the mode of either a console input or a screen buffer */
static int set_console_mode( handle_t handle, int mode )
{
struct object *obj;
int ret = 0;
if (!(obj = get_handle_obj( current->process, handle, GENERIC_WRITE, NULL )))
return 0;
if (obj->ops == &console_input_ops)
{
/* FIXME: if we remove the edit mode bits, we need (???) to clean up the history */
((struct console_input *)obj)->mode = mode;
ret = 1;
}
else if (obj->ops == &screen_buffer_ops)
{
((struct screen_buffer *)obj)->mode = mode;
ret = 1;
}
else set_error( STATUS_OBJECT_TYPE_MISMATCH );
release_object( obj );
return ret;
}
/* add input events to a console input queue */
static int write_console_input( struct console_input* console, int count, INPUT_RECORD *records )
{
INPUT_RECORD *new_rec;
assert(count);
if (!(new_rec = realloc( console->records,
(console->recnum + count) * sizeof(INPUT_RECORD) )))
{
set_error( STATUS_NO_MEMORY );
release_object( console );
return -1;
}
console->records = new_rec;
memcpy( new_rec + console->recnum, records, count * sizeof(INPUT_RECORD) );
console->recnum += count;
/* wake up all waiters */
wake_up( &console->obj, 0 );
return count;
}
/* retrieve a pointer to the console input records */
static int read_console_input( handle_t handle, int count, INPUT_RECORD *rec, int flush )
{
struct console_input *console;
if (!(console = (struct console_input *)get_handle_obj( current->process, handle,
GENERIC_READ, &console_input_ops )))
return -1;
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;
memcpy( rec, console->records, count * sizeof(INPUT_RECORD) );
}
if (flush)
{
int i;
for (i = count; i < console->recnum; i++)
((INPUT_RECORD*)console->records)[i-count] = ((INPUT_RECORD*)console->records)[i];
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;
}
}
release_object( console );
return count;
}
/* set misc console input information */
static int set_console_input_info( struct set_console_input_info_request *req,
const WCHAR *title, size_t len )
{
struct console_input *console;
struct console_renderer_event evt;
if (!(console = console_input_get( req->handle, GENERIC_WRITE ))) goto error;
if (req->mask & SET_CONSOLE_INPUT_INFO_ACTIVE_SB)
{
struct screen_buffer *screen_buffer;
screen_buffer = (struct screen_buffer *)get_handle_obj( current->process, req->active_sb,
GENERIC_READ, &screen_buffer_ops );
if (!screen_buffer || screen_buffer->input != console)
{
set_error( STATUS_INVALID_PARAMETER );
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;
evt.event = CONSOLE_RENDERER_ACTIVE_SB_EVENT;
console_input_events_append( console->evt, &evt );
}
else
release_object( screen_buffer );
}
if (req->mask & SET_CONSOLE_INPUT_INFO_TITLE)
{
WCHAR *new_title = mem_alloc( len + sizeof(WCHAR) );
if (new_title)
{
memcpy( new_title, title, len + sizeof(WCHAR) );
new_title[len / sizeof(WCHAR)] = 0;
if (console->title) free( console->title );
console->title = new_title;
}
}
if (req->mask & SET_CONSOLE_INPUT_INFO_HISTORY_MODE)
{
console->history_mode = req->history_mode;
}
if ((req->mask & SET_CONSOLE_INPUT_INFO_HISTORY_SIZE) &&
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*) );
}
delta = (console->history_index > req->history_size) ?
(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++)
if (console->history[i]) free( console->history[i] );
free( console->history );
console->history = mem;
console->history_size = req->history_size;
}
release_object( console );
return 1;
error:
if (console) release_object( console );
return 0;
}
/* set misc screen buffer information */
static int set_console_output_info( struct screen_buffer *screen_buffer,
struct set_console_output_info_request *req )
{
struct console_renderer_event evt;
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;
}
if (screen_buffer->cursor_size != req->cursor_size ||
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;
console_input_events_append( screen_buffer->input->evt, &evt );
}
}
if (req->mask & SET_CONSOLE_OUTPUT_INFO_CURSOR_POS)
{
if (req->cursor_x < 0 || req->cursor_x >= screen_buffer->width ||
req->cursor_y < 0 || req->cursor_y >= screen_buffer->height)
{
set_error( STATUS_INVALID_PARAMETER );
return 0;
}
if (screen_buffer->cursor.X != req->cursor_x || screen_buffer->cursor.Y != req->cursor_y)
{
screen_buffer->cursor.X = req->cursor_x;
screen_buffer->cursor.Y = req->cursor_y;
evt.event = CONSOLE_RENDERER_CURSOR_POS_EVENT;
evt.u.cursor_pos.x = req->cursor_x;
evt.u.cursor_pos.y = req->cursor_y;
console_input_events_append( screen_buffer->input->evt, &evt );
}
}
if (req->mask & SET_CONSOLE_OUTPUT_INFO_SIZE)
{
int i, j;
/* FIXME: there are also some basic minimum and max size to deal with */
unsigned* new_data = mem_alloc( 4 * req->width * req->height );
if (!new_data) return 0;
/* fill the buffer with either the old buffer content or white on black spaces */
for (j = 0; j < req->height; j++)
{
for (i = 0; i < req->width; i++)
{
new_data[j * req->width + i] =
(i < screen_buffer->width && j < screen_buffer->height) ?
screen_buffer->data[j * screen_buffer->width + i] : 0x00F00020;
}
}
free( screen_buffer->data );
screen_buffer->data = new_data;
screen_buffer->width = req->width;
screen_buffer->height = req->height;
evt.event = CONSOLE_RENDERER_SB_RESIZE_EVENT;
evt.u.resize.width = req->width;
evt.u.resize.height = req->height;
console_input_events_append( screen_buffer->input->evt, &evt );
if (screen_buffer == screen_buffer->input->active &&
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)
{
if (req->win_left < 0 || req->win_left > req->win_right ||
req->win_right >= screen_buffer->width ||
req->win_top < 0 || req->win_top > req->win_bottom ||
req->win_bottom >= screen_buffer->height)
{
set_error( STATUS_INVALID_PARAMETER );
return 0;
}
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)
{
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;
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;
console_input_events_append( screen_buffer->input->evt, &evt );
}
}
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;
}
/* appends a new line to history (history is a fixed size array) */
static void console_input_append_hist( struct console_input* console, const WCHAR* buf, size_t len )
{
WCHAR* ptr = mem_alloc( (len + 1) * sizeof(WCHAR) );
if (!ptr)
{
set_error( STATUS_NO_MEMORY );
return;
}
if (!console || !console->history_size)
{
set_error( STATUS_INVALID_PARAMETER ); /* FIXME */
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]) ;
memmove( &console->history[0], &console->history[1],
(console->history_size - 1) * sizeof(WCHAR*) );
console->history[console->history_size - 1] = ptr;
}
}
/* returns a line from the cachde */
static int console_input_get_hist( struct console_input* console, WCHAR* buf, size_t len, int index )
{
int ret;
/* FIXME: don't use len yet */
if (!console || index >= console->history_index)
{
set_error( STATUS_INVALID_PARAMETER );
return 0;
}
ret = strlenW(console->history[index]);
memcpy( buf, console->history[index], ret * sizeof(WCHAR) ); /* FIXME should use len */
return ret;
}
/* dumb dump */
static void console_input_dump( struct object *obj, int verbose )
{
struct console_input *console = (struct console_input *)obj;
assert( obj->ops == &console_input_ops );
fprintf( stderr, "Console input active=%p evt=%p\n",
console->active, console->evt );
}
static int console_get_file_info( struct object *obj, struct get_file_info_request *req )
{
if (req)
{
req->type = FILE_TYPE_CHAR;
req->attr = 0;
req->access_time = 0;
req->write_time = 0;
req->size_high = 0;
req->size_low = 0;
req->links = 0;
req->index_high = 0;
req->index_low = 0;
req->serial = 0;
}
return FD_TYPE_CONSOLE;
}
static void console_input_destroy( struct object *obj )
{
struct console_input* console_in = (struct console_input *)obj;
struct screen_buffer* curr;
int i;
assert( obj->ops == &console_input_ops );
if (console_in->title) free( console_in->title );
if (console_in->records) free( console_in->records );
if (console_in->active) release_object( console_in->active );
console_in->active = NULL;
for (curr = screen_buffer_list; curr; curr = curr->next)
{
if (curr->input == console_in) curr->input = NULL;
}
release_object( console_in->evt );
console_in->evt = NULL;
for (i = 0; i < console_in->history_size; i++)
if (console_in->history[i]) free( console_in->history[i] );
if (console_in->history) free( console_in->history );
}
static void screen_buffer_dump( struct object *obj, int verbose )
{
struct screen_buffer *screen_buffer = (struct screen_buffer *)obj;
assert( obj->ops == &screen_buffer_ops );
fprintf(stderr, "Console screen buffer input=%p\n", screen_buffer->input );
}
static void screen_buffer_destroy( struct object *obj )
{
struct screen_buffer* screen_buffer = (struct screen_buffer *)obj;
struct screen_buffer** psb;
assert( obj->ops == &screen_buffer_ops );
for (psb = &screen_buffer_list; *psb; *psb = (*psb)->next)
{
if (*psb == screen_buffer)
{
*psb = screen_buffer->next;
break;
}
}
if (screen_buffer->input && screen_buffer->input->active == screen_buffer)
{
struct screen_buffer* sb;
for (sb = screen_buffer_list; sb && sb->input != screen_buffer->input; sb = sb->next);
screen_buffer->input->active = sb;
}
}
/* write data into a screen buffer */
static int write_console_output( struct screen_buffer *screen_buffer, size_t size,
const unsigned char* data, int mode, short int x, short int y )
{
int uniform = mode & WRITE_CONSOLE_MODE_UNIFORM;
unsigned *ptr;
unsigned i, inc;
int len;
mode &= ~WRITE_CONSOLE_MODE_UNIFORM;
if (mode < 0 || mode > 3)
{
set_error(STATUS_INVALID_PARAMETER);
return 0;
}
/* set destination pointer and increment */
ptr = screen_buffer->data + (y * screen_buffer->width + x);
if (mode == WRITE_CONSOLE_MODE_ATTR) ptr = (unsigned*)((char*)ptr + 2);
inc = (mode == WRITE_CONSOLE_MODE_TEXTATTR) ? 4 : 2;
len = size / inc;
/* crop if needed */
if (x + len > screen_buffer->width) len = screen_buffer->width - x;
for (i = 0; i < len; i++)
{
if (mode == WRITE_CONSOLE_MODE_TEXTSTDATTR)
{
memcpy( (char*)ptr + 2, &screen_buffer->attr, 2 );
}
memcpy( ptr++, data, inc );
if (!uniform) data += inc;
}
if (len && screen_buffer == screen_buffer->input->active)
{
int y2;
struct console_renderer_event evt;
y2 = (y * screen_buffer->width + x + len - 1) / screen_buffer->width;
evt.event = CONSOLE_RENDERER_UPDATE_EVENT;
evt.u.update.top = y;
evt.u.update.bottom = y2;
console_input_events_append( screen_buffer->input->evt, &evt );
}
return len;
}
/* read data from a screen buffer */
static int read_console_output( struct screen_buffer *screen_buffer, size_t size, void* data,
short int x, short int y, short int w, short int h,
short int* eff_w, short int* eff_h )
{
int j;
if (size < w * h * 4 || x >= screen_buffer->width || y >= screen_buffer->height)
{
set_error(STATUS_INVALID_PARAMETER);
return 0;
}
*eff_w = w;
*eff_h = h;
if (x + w > screen_buffer->width) *eff_w = screen_buffer->width - x;
if (y + h > screen_buffer->height) *eff_h = screen_buffer->height - y;
for (j = 0; j < *eff_h; j++)
{
memcpy( (char*)data + 4 * j * w, &screen_buffer->data[(y + j) * screen_buffer->width + x],
*eff_w * 4 );
}
return *eff_w * *eff_h;
}
/* scroll parts of a screen buffer */
static void scroll_console_output( handle_t handle, short int xsrc, short int ysrc,
short int xdst, short int ydst, short int w, short int h )
{
struct screen_buffer *screen_buffer;
int j;
unsigned* psrc;
unsigned* pdst;
struct console_renderer_event evt;
if (!(screen_buffer = (struct screen_buffer *)get_handle_obj( current->process, handle,
GENERIC_READ, &screen_buffer_ops )))
return;
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 );
release_object( screen_buffer );
return;
}
if (ysrc < ydst)
{
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--)
{
memcpy(pdst, psrc, w * 4);
pdst -= screen_buffer->width;
psrc -= screen_buffer->width;
}
}
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++)
{
/* we use memmove here because when psrc and pdst are the same,
* copies are done on the same row, so the dst and src blocks
* can overlap */
memmove( pdst, psrc, w * 4 );
pdst += screen_buffer->width;
psrc += screen_buffer->width;
}
}
/* FIXME: this could be enhanced, by signalling scroll */
evt.event = CONSOLE_RENDERER_UPDATE_EVENT;
evt.u.update.top = min(ysrc, ydst);
evt.u.update.bottom = max(ysrc, ydst) + h - 1;
console_input_events_append( screen_buffer->input->evt, &evt );
release_object( screen_buffer );
}
/* allocate a console for the renderer */
DECL_HANDLER(alloc_console)
{
handle_t in = 0;
handle_t evt = 0;
struct process *process;
struct process *renderer = current->process;
struct console_input *console;
process = (req->pid) ? get_process_from_id( req->pid ) :
(struct process *)grab_object( renderer->parent );
req->handle_in = 0;
req->event = 0;
if (!process) return;
if (process != renderer && process->console)
{
set_error( STATUS_ACCESS_DENIED );
goto the_end;
}
if ((console = (struct console_input*)create_console_input( renderer )))
{
if ((in = alloc_handle( renderer, console, req->access, req->inherit )))
{
if ((evt = alloc_handle( renderer, console->evt,
SYNCHRONIZE|GENERIC_READ|GENERIC_WRITE, FALSE )))
{
if (process != renderer)
{
process->console = (struct console_input*)grab_object( console );
console->num_proc++;
}
req->handle_in = in;
req->event = evt;
release_object( console );
goto the_end;
}
close_handle( renderer, in, NULL );
}
free_console( process );
}
the_end:
release_object( process );
}
/* free the console of the current process */
DECL_HANDLER(free_console)
{
free_console( current->process );
}
/* let the renderer peek the events it's waiting on */
DECL_HANDLER(get_console_renderer_events)
{
struct console_input_events* evt;
size_t len = 0;
evt = (struct console_input_events *)get_handle_obj( current->process, req->handle,
GENERIC_WRITE, &console_input_events_ops );
if (!evt) return;
len = console_input_events_get( evt, get_req_data(req), get_req_data_size(req) );
set_req_data_size( req, len );
release_object( evt );
}
/* open a handle to the process console */
DECL_HANDLER(open_console)
{
struct object *obj = NULL;
req->handle = 0;
switch (req->from)
{
case 0:
if (current->process->console && current->process->console->renderer)
obj = grab_object( (struct object*)current->process->console );
break;
case 1:
if (current->process->console && current->process->console->renderer &&
current->process->console->active)
obj = grab_object( (struct object*)current->process->console->active );
break;
default:
if ((obj = get_handle_obj( current->process, (handle_t)req->from,
GENERIC_READ|GENERIC_WRITE, &console_input_ops )))
{
struct console_input* console = (struct console_input*)obj;
obj = (console->active) ? grab_object( console->active ) : NULL;
release_object( console );
}
break;
}
/* FIXME: req->share is not used (as in screen buffer creation) */
if (obj)
{
req->handle = alloc_handle( current->process, obj, req->access, req->inherit );
release_object( obj );
}
if (!req->handle && !get_error()) set_error( STATUS_ACCESS_DENIED );
}
/* set info about a console input */
DECL_HANDLER(set_console_input_info)
{
set_console_input_info( req, get_req_data(req), get_req_data_size(req) );
}
/* get info about a console (output only) */
DECL_HANDLER(get_console_input_info)
{
struct console_input *console = 0;
set_req_data_size( req, 0 );
if (!(console = console_input_get( req->handle, GENERIC_READ ))) return;
if (console->title)
{
size_t len = strlenW( console->title ) * sizeof(WCHAR);
if (len > get_req_data_size(req)) len = get_req_data_size(req);
memcpy( get_req_data(req), console->title, len );
set_req_data_size( req, len );
}
req->history_mode = console->history_mode;
req->history_size = console->history_size;
req->history_index = console->history_index;
release_object( console );
}
/* get a console mode (input or output) */
DECL_HANDLER(get_console_mode)
{
req->mode = get_console_mode( req->handle );
}
/* 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)
{
struct console_input *console;
req->written = 0;
if (!(console = (struct console_input *)get_handle_obj( current->process, req->handle,
GENERIC_WRITE, &console_input_ops )))
return;
req->written = write_console_input( console, get_req_data_size(req) / sizeof(INPUT_RECORD),
get_req_data(req) );
release_object( console );
}
/* fetch input records from a console input queue */
DECL_HANDLER(read_console_input)
{
size_t size = get_req_data_size(req) / sizeof(INPUT_RECORD);
int res = read_console_input( req->handle, size, get_req_data(req), req->flush );
/* if size was 0 we didn't fetch anything */
if (size) set_req_data_size( req, res * sizeof(INPUT_RECORD) );
req->read = res;
}
/* appends a string to console's history */
DECL_HANDLER(append_console_input_history)
{
struct console_input* console;
if (!(console = console_input_get( req->handle, GENERIC_WRITE ))) return;
console_input_append_hist( console, get_req_data(req),
get_req_data_size(req) / sizeof(WCHAR) );
release_object( console );
}
/* appends a string to console's history */
DECL_HANDLER(get_console_input_history)
{
struct console_input* console;
int len;
if (!(console = console_input_get( req->handle, GENERIC_WRITE ))) return;
len = console_input_get_hist( console, get_req_data(req), 0 /* FIXME */, req->index );
set_req_data_size( req, len * sizeof(WCHAR));
release_object( console );
}
/* creates a screen buffer */
DECL_HANDLER(create_console_output)
{
struct console_input* console;
struct screen_buffer* screen_buffer;
if (!(console = console_input_get( req->handle_in, GENERIC_WRITE))) return;
screen_buffer = (struct screen_buffer*)create_console_output( console );
if (screen_buffer)
{
/* FIXME: should store sharing and test it when opening the CONOUT$ device
* see file.c on how this could be done
*/
req->handle_out = alloc_handle( current->process, screen_buffer, req->access, req->inherit );
release_object( screen_buffer );
}
release_object( console );
}
/* set info about a console screen buffer */
DECL_HANDLER(set_console_output_info)
{
struct screen_buffer *screen_buffer;
if (!(screen_buffer = (struct screen_buffer*)get_handle_obj( current->process, req->handle,
GENERIC_WRITE, &screen_buffer_ops )))
return;
set_console_output_info( screen_buffer, req );
release_object( screen_buffer );
}
/* get info about a console screen buffer */
DECL_HANDLER(get_console_output_info)
{
struct screen_buffer *screen_buffer;
size_t len = 0;
if ((screen_buffer = (struct screen_buffer *)get_handle_obj( current->process, req->handle,
GENERIC_READ, &screen_buffer_ops )))
{
req->cursor_size = screen_buffer->cursor_size;
req->cursor_visible = screen_buffer->cursor_visible;
req->cursor_x = screen_buffer->cursor.X;
req->cursor_y = screen_buffer->cursor.Y;
req->width = screen_buffer->width;
req->height = screen_buffer->height;
req->attr = screen_buffer->attr;
req->win_left = screen_buffer->win.Left;
req->win_top = screen_buffer->win.Top;
req->win_right = screen_buffer->win.Right;
req->win_bottom = screen_buffer->win.Bottom;
req->max_width = screen_buffer->max_width;
req->max_height = screen_buffer->max_height;
release_object( screen_buffer );
}
set_req_data_size( req, len );
}
/* read data (chars & attrs) from a screen buffer */
DECL_HANDLER(read_console_output)
{
struct screen_buffer *screen_buffer;
size_t size = get_req_data_size(req);
int res;
if (!(screen_buffer = (struct screen_buffer*)get_handle_obj( current->process, req->handle,
GENERIC_READ, &screen_buffer_ops )))
return;
res = read_console_output( screen_buffer, size, get_req_data(req),
req->x, req->y, req->w, req->h, &req->eff_w, &req->eff_h);
/* if size was 0 we didn't fetch anything */
if (size) set_req_data_size( req, res * 4 );
release_object( screen_buffer );
}
/* write data (char and/or attrs) to a screen buffer */
DECL_HANDLER(write_console_output)
{
struct screen_buffer *screen_buffer;
size_t size = get_req_data_size(req);
int res;
if (!(screen_buffer = (struct screen_buffer*)get_handle_obj( current->process, req->handle,
GENERIC_WRITE, &screen_buffer_ops )))
return;
res = write_console_output( screen_buffer, size, get_req_data(req), req->mode, req->x, req->y );
/* if size was 0 we didn't fetch anything */
if (size) set_req_data_size( req, res );
req->written = res;
release_object( screen_buffer );
}
/* move a rect of data in a screen buffer */
DECL_HANDLER(move_console_output)
{
scroll_console_output( req->handle, req->x_src, req->y_src, req->x_dst, req->y_dst,
req->w, req->h );
}
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