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xrdp-proprietary/xrdp/xrdp_orders.c

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/*
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program 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 General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
xrdp: A Remote Desktop Protocol server.
Copyright (C) Jay Sorg 2004-2005
orders
*/
#include "xrdp.h"
/*****************************************************************************/
struct xrdp_orders* xrdp_orders_create(struct xrdp_process* owner,
struct xrdp_rdp* rdp_layer)
{
struct xrdp_orders* self;
self = (struct xrdp_orders*)g_malloc(sizeof(struct xrdp_orders), 1);
self->pro_layer = owner;
self->rdp_layer = rdp_layer;
make_stream(self->out_s);
init_stream(self->out_s, 8192);
return self;
}
/*****************************************************************************/
void xrdp_orders_delete(struct xrdp_orders* self)
{
if (self == 0)
{
return;
}
free_stream(self->out_s);
g_free(self);
}
/*****************************************************************************/
/* returns error */
int xrdp_orders_init(struct xrdp_orders* self)
{
self->order_level++;
if (self->order_level == 1)
{
self->order_count = 0;
/* is this big enough */
if (xrdp_rdp_init_data(self->rdp_layer, self->out_s) != 0)
{
return 1;
}
out_uint16_le(self->out_s, RDP_UPDATE_ORDERS);
out_uint8s(self->out_s, 2); /* pad */
self->order_count_ptr = self->out_s->p;
out_uint8s(self->out_s, 2); /* number of orders, set later */
out_uint8s(self->out_s, 2); /* pad */
}
return 0;
}
/*****************************************************************************/
/* returns error */
int xrdp_orders_send(struct xrdp_orders* self)
{
int rv;
rv = 0;
if (self->order_level > 0)
{
self->order_level--;
if (self->order_level == 0 && self->order_count > 0)
{
s_mark_end(self->out_s);
DEBUG(("xrdp_orders_send sending %d orders\n\r", self->order_count));
self->order_count_ptr[0] = self->order_count;
self->order_count_ptr[1] = self->order_count >> 8;
if (xrdp_rdp_send_data(self->rdp_layer, self->out_s,
RDP_DATA_PDU_UPDATE) != 0)
{
rv = 1;
}
}
}
return rv;
}
/*****************************************************************************/
/* returns error */
int xrdp_orders_force_send(struct xrdp_orders* self)
{
if (self->order_count > 0)
{
s_mark_end(self->out_s);
DEBUG(("xrdp_orders_force_send sending %d orders\n\r", self->order_count));
self->order_count_ptr[0] = self->order_count;
self->order_count_ptr[1] = self->order_count >> 8;
if (xrdp_rdp_send_data(self->rdp_layer, self->out_s,
RDP_DATA_PDU_UPDATE) != 0)
{
return 1;
}
}
self->order_count = 0;
self->order_level = 0;
return 0;
}
/*****************************************************************************/
/* check if the current order will fix in packet size of 8192, if not */
/* send what we got and init a new one */
/* returns error */
int xrdp_orders_check(struct xrdp_orders* self, int max_size)
{
int size;
if (self->order_level < 1)
{
if (max_size > 8000)
{
return 1;
}
else
{
return 0;
}
}
size = self->out_s->p - self->order_count_ptr;
if (size < 0 || size > 8192)
{
return 1;
}
if (size + max_size + 100 > 8000)
{
xrdp_orders_force_send(self);
xrdp_orders_init(self);
}
return 0;
}
/*****************************************************************************/
/* check if rect is the same as the last one sent */
/* returns boolean */
int xrdp_orders_last_bounds(struct xrdp_orders* self,
struct xrdp_rect* rect)
{
if (rect == 0)
{
return 0;
}
if (rect->left == self->clip_left &&
rect->top == self->clip_top &&
rect->right == self->clip_right &&
rect->bottom == self->clip_bottom)
{
return 1;
}
return 0;
}
/*****************************************************************************/
/* check if all coords are withing 256 bytes */
/* returns boolean */
int xrdp_orders_send_delta(struct xrdp_orders* self, int* vals, int count)
{
int i;
for (i = 0; i < count; i += 2)
{
if (g_abs(vals[i] - vals[i + 1]) >= 128)
{
return 0;
}
}
return 1;
}
/*****************************************************************************/
/* returns error */
int xrdp_orders_out_bounds(struct xrdp_orders* self, struct xrdp_rect* rect)
{
char* bounds_flags_ptr;
int bounds_flags;
bounds_flags = 0;
bounds_flags_ptr = self->out_s->p;
out_uint8s(self->out_s, 1);
/* left */
if (rect->left == self->clip_left)
{
}
else if (g_abs(rect->left - self->clip_left) < 128)
{
bounds_flags |= 0x10;
}
else
{
bounds_flags |= 0x01;
}
/* top */
if (rect->top == self->clip_top)
{
}
else if (g_abs(rect->top - self->clip_top) < 128)
{
bounds_flags |= 0x20;
}
else
{
bounds_flags |= 0x02;
}
/* right */
if (rect->right == self->clip_right)
{
}
else if (g_abs(rect->right - self->clip_right) < 128)
{
bounds_flags |= 0x40;
}
else
{
bounds_flags |= 0x04;
}
/* bottom */
if (rect->bottom == self->clip_bottom)
{
}
else if (g_abs(rect->bottom - self->clip_bottom) < 128)
{
bounds_flags |= 0x80;
}
else
{
bounds_flags |= 0x08;
}
/* left */
if (bounds_flags & 0x01)
{
out_uint16_le(self->out_s, rect->left);
}
else if (bounds_flags & 0x10)
{
out_uint8(self->out_s, rect->left - self->clip_left);
}
self->clip_left = rect->left;
/* top */
if (bounds_flags & 0x02)
{
out_uint16_le(self->out_s, rect->top);
}
else if (bounds_flags & 0x20)
{
out_uint8(self->out_s, rect->top - self->clip_top);
}
self->clip_top = rect->top;
/* right */
if (bounds_flags & 0x04)
{
out_uint16_le(self->out_s, rect->right);
}
else if (bounds_flags & 0x40)
{
out_uint8(self->out_s, rect->right - self->clip_right);
}
self->clip_right = rect->right;
/* bottom */
if (bounds_flags & 0x08)
{
out_uint16_le(self->out_s, rect->bottom);
}
else if (bounds_flags & 0x80)
{
out_uint8(self->out_s, rect->bottom - self->clip_bottom);
}
self->clip_bottom = rect->bottom;
/* set flags */
*bounds_flags_ptr = bounds_flags;
return 0;
}
/*****************************************************************************/
/* returns error */
/* send a solid rect to client */
/* max size 23 */
int xrdp_orders_rect(struct xrdp_orders* self, int x, int y, int cx, int cy,
int color, struct xrdp_rect* rect)
{
int order_flags;
int vals[8];
int present;
char* present_ptr;
xrdp_orders_check(self, 23);
self->order_count++;
order_flags = RDP_ORDER_STANDARD;
if (self->last_order != RDP_ORDER_RECT)
{
order_flags |= RDP_ORDER_CHANGE;
}
self->last_order = RDP_ORDER_RECT;
if (rect != 0)
{
order_flags |= RDP_ORDER_BOUNDS;
if (xrdp_orders_last_bounds(self, rect))
{
order_flags |= RDP_ORDER_LASTBOUNDS;
}
}
vals[0] = x;
vals[1] = self->rect_x;
vals[2] = y;
vals[3] = self->rect_y;
vals[4] = cx;
vals[5] = self->rect_cx;
vals[6] = cy;
vals[7] = self->rect_cy;
if (xrdp_orders_send_delta(self, vals, 8))
{
order_flags |= RDP_ORDER_DELTA;
}
out_uint8(self->out_s, order_flags)
if (order_flags & RDP_ORDER_CHANGE)
{
out_uint8(self->out_s, self->last_order);
}
present = 0;
present_ptr = self->out_s->p; /* hold 1 byte present pointer */
out_uint8s(self->out_s, 1)
if ((order_flags & RDP_ORDER_BOUNDS) &&
!(order_flags & RDP_ORDER_LASTBOUNDS))
{
xrdp_orders_out_bounds(self, rect);
}
if (x != self->rect_x)
{
present |= 0x01;
if (order_flags & RDP_ORDER_DELTA)
{
out_uint8(self->out_s, x - self->rect_x);
}
else
{
out_uint16_le(self->out_s, x);
}
self->rect_x = x;
}
if (y != self->rect_y)
{
present |= 0x02;
if (order_flags & RDP_ORDER_DELTA)
{
out_uint8(self->out_s, y - self->rect_y);
}
else
{
out_uint16_le(self->out_s, y);
}
self->rect_y = y;
}
if (cx != self->rect_cx)
{
present |= 0x04;
if (order_flags & RDP_ORDER_DELTA)
{
out_uint8(self->out_s, cx - self->rect_cx);
}
else
{
out_uint16_le(self->out_s, cx);
}
self->rect_cx = cx;
}
if (cy != self->rect_cy)
{
present |= 0x08;
if (order_flags & RDP_ORDER_DELTA)
{
out_uint8(self->out_s, cy - self->rect_cy);
}
else
{
out_uint16_le(self->out_s, cy);
}
self->rect_cy = cy;
}
if ((color & 0xff) != (self->rect_color & 0xff))
{
present |= 0x10;
self->rect_color = (self->rect_color & 0xffff00) | (color & 0xff);
out_uint8(self->out_s, color);
}
if ((color & 0xff00) != (self->rect_color & 0xff00))
{
present |= 0x20;
self->rect_color = (self->rect_color & 0xff00ff) | (color & 0xff00);
out_uint8(self->out_s, color >> 8);
}
if ((color & 0xff0000) != (self->rect_color & 0xff0000))
{
present |= 0x40;
self->rect_color = (self->rect_color & 0x00ffff) | (color & 0xff0000);
out_uint8(self->out_s, color >> 16);
}
present_ptr[0] = present;
return 0;
}
/*****************************************************************************/
/* returns error */
/* send a screen blt order */
/* max size 25 */
int xrdp_orders_screen_blt(struct xrdp_orders* self, int x, int y,
int cx, int cy, int srcx, int srcy,
int rop, struct xrdp_rect* rect)
{
int order_flags;
int vals[12];
int present;
char* present_ptr;
xrdp_orders_check(self, 25);
self->order_count++;
order_flags = RDP_ORDER_STANDARD;
if (self->last_order != RDP_ORDER_SCREENBLT)
{
order_flags |= RDP_ORDER_CHANGE;
}
self->last_order = RDP_ORDER_SCREENBLT;
if (rect != 0)
{
order_flags |= RDP_ORDER_BOUNDS;
if (xrdp_orders_last_bounds(self, rect))
{
order_flags |= RDP_ORDER_LASTBOUNDS;
}
}
vals[0] = x;
vals[1] = self->scr_blt_x;
vals[2] = y;
vals[3] = self->scr_blt_y;
vals[4] = cx;
vals[5] = self->scr_blt_cx;
vals[6] = cy;
vals[7] = self->scr_blt_cy;
vals[8] = srcx;
vals[9] = self->scr_blt_srcx;
vals[10] = srcy;
vals[11] = self->scr_blt_srcy;
if (xrdp_orders_send_delta(self, vals, 12))
{
order_flags |= RDP_ORDER_DELTA;
}
out_uint8(self->out_s, order_flags);
if (order_flags & RDP_ORDER_CHANGE)
{
out_uint8(self->out_s, self->last_order);
}
present = 0;
present_ptr = self->out_s->p; /* hold 1 byte present pointer */
out_uint8s(self->out_s, 1)
if ((order_flags & RDP_ORDER_BOUNDS) &&
!(order_flags & RDP_ORDER_LASTBOUNDS))
{
xrdp_orders_out_bounds(self, rect);
}
if (x != self->scr_blt_x)
{
present |= 0x01;
if (order_flags & RDP_ORDER_DELTA)
{
out_uint8(self->out_s, x - self->scr_blt_x);
}
else
{
out_uint16_le(self->out_s, x);
}
self->scr_blt_x = x;
}
if (y != self->scr_blt_y)
{
present |= 0x02;
if (order_flags & RDP_ORDER_DELTA)
{
out_uint8(self->out_s, y - self->scr_blt_y);
}
else
{
out_uint16_le(self->out_s, y);
}
self->scr_blt_y = y;
}
if (cx != self->scr_blt_cx)
{
present |= 0x04;
if (order_flags & RDP_ORDER_DELTA)
{
out_uint8(self->out_s, cx - self->scr_blt_cx);
}
else
{
out_uint16_le(self->out_s, cx);
}
self->scr_blt_cx = cx;
}
if (cy != self->scr_blt_cy)
{
present |= 0x08;
if (order_flags & RDP_ORDER_DELTA)
{
out_uint8(self->out_s, cy - self->scr_blt_cy);
}
else
{
out_uint16_le(self->out_s, cy);
}
self->scr_blt_cy = cy;
}
if (rop != self->scr_blt_rop)
{
present |= 0x10;
out_uint8(self->out_s, rop);
self->scr_blt_rop = rop;
}
if (srcx != self->scr_blt_srcx)
{
present |= 0x20;
if (order_flags & RDP_ORDER_DELTA)
{
out_uint8(self->out_s, srcx - self->scr_blt_srcx);
}
else
{
out_uint16_le(self->out_s, srcx);
}
self->scr_blt_srcx = srcx;
}
if (srcy != self->scr_blt_srcy)
{
present |= 0x40;
if (order_flags & RDP_ORDER_DELTA)
{
out_uint8(self->out_s, srcy - self->scr_blt_srcy)
}
else
{
out_uint16_le(self->out_s, srcy)
}
self->scr_blt_srcy = srcy;
}
present_ptr[0] = present;
return 0;
}
/*****************************************************************************/
/* returns error */
/* send a pat blt order */
/* max size 39 */
int xrdp_orders_pat_blt(struct xrdp_orders* self, int x, int y,
int cx, int cy, int rop, int bg_color,
int fg_color, struct xrdp_brush* brush,
struct xrdp_rect* rect)
{
int order_flags;
int vals[8];
int present;
char* present_ptr;
struct xrdp_brush blank_brush;
xrdp_orders_check(self, 39);
self->order_count++;
order_flags = RDP_ORDER_STANDARD;
if (self->last_order != RDP_ORDER_PATBLT)
{
order_flags |= RDP_ORDER_CHANGE;
}
self->last_order = RDP_ORDER_PATBLT;
if (rect != 0)
{
order_flags |= RDP_ORDER_BOUNDS;
if (xrdp_orders_last_bounds(self, rect))
{
order_flags |= RDP_ORDER_LASTBOUNDS;
}
}
vals[0] = x;
vals[1] = self->pat_blt_x;
vals[2] = y;
vals[3] = self->pat_blt_y;
vals[4] = cx;
vals[5] = self->pat_blt_cx;
vals[6] = cy;
vals[7] = self->pat_blt_cy;
if (xrdp_orders_send_delta(self, vals, 8))
{
order_flags |= RDP_ORDER_DELTA;
}
out_uint8(self->out_s, order_flags);
if (order_flags & RDP_ORDER_CHANGE)
{
out_uint8(self->out_s, self->last_order);
}
present = 0;
present_ptr = self->out_s->p; /* hold 2 byte present pointer, todo */
out_uint8s(self->out_s, 2) /* this can be smaller, */
/* see RDP_ORDER_SMALL and RDP_ORDER_TINY */
if ((order_flags & RDP_ORDER_BOUNDS) &&
!(order_flags & RDP_ORDER_LASTBOUNDS))
{
xrdp_orders_out_bounds(self, rect);
}
if (x != self->pat_blt_x)
{
present |= 0x0001;
if (order_flags & RDP_ORDER_DELTA)
{
out_uint8(self->out_s, x - self->pat_blt_x);
}
else
{
out_uint16_le(self->out_s, x);
}
self->pat_blt_x = x;
}
if (y != self->pat_blt_y)
{
present |= 0x0002;
if (order_flags & RDP_ORDER_DELTA)
{
out_uint8(self->out_s, y - self->pat_blt_y);
}
else
{
out_uint16_le(self->out_s, y);
}
self->pat_blt_y = y;
}
if (cx != self->pat_blt_cx)
{
present |= 0x0004;
if (order_flags & RDP_ORDER_DELTA)
{
out_uint8(self->out_s, cx - self->pat_blt_cx);
}
else
{
out_uint16_le(self->out_s, cx);
}
self->pat_blt_cx = cx;
}
if (cy != self->pat_blt_cy)
{
present |= 0x0008;
if (order_flags & RDP_ORDER_DELTA)
{
out_uint8(self->out_s, cy - self->pat_blt_cy);
}
else
{
out_uint16_le(self->out_s, cy);
}
self->pat_blt_cy = cy;
}
if (rop != self->pat_blt_rop)
{
present |= 0x0010;
/* PATCOPY PATPAINT PATINVERT DSTINVERT BLACKNESS WHITENESS */
out_uint8(self->out_s, rop);
self->pat_blt_rop = rop;
}
if (bg_color != self->pat_blt_bg_color)
{
present |= 0x0020;
out_uint8(self->out_s, bg_color);
out_uint8(self->out_s, bg_color >> 8);
out_uint8(self->out_s, bg_color >> 16);
self->pat_blt_bg_color = bg_color;
}
if (fg_color != self->pat_blt_fg_color)
{
present |= 0x0040;
out_uint8(self->out_s, fg_color);
out_uint8(self->out_s, fg_color >> 8);
out_uint8(self->out_s, fg_color >> 16);
self->pat_blt_fg_color = fg_color;
}
if (brush == 0) /* if nil use blank one */
{ /* todo can we just set style to zero */
g_memset(&blank_brush, 0, sizeof(struct xrdp_brush));
brush = &blank_brush;
}
if (brush->x_orgin != self->pat_blt_brush.x_orgin)
{
present |= 0x0080;
out_uint8(self->out_s, brush->x_orgin);
self->pat_blt_brush.x_orgin = brush->x_orgin;
}
if (brush->y_orgin != self->pat_blt_brush.y_orgin)
{
present |= 0x0100;
out_uint8(self->out_s, brush->y_orgin);
self->pat_blt_brush.y_orgin = brush->y_orgin;
}
if (brush->style != self->pat_blt_brush.style)
{
present |= 0x0200;
out_uint8(self->out_s, brush->style);
self->pat_blt_brush.style = brush->style;
}
if (brush->pattern[0] != self->pat_blt_brush.pattern[0])
{
present |= 0x0400;
out_uint8(self->out_s, brush->pattern[0]);
self->pat_blt_brush.pattern[0] = brush->pattern[0];
}
if (g_memcmp(brush->pattern + 1, self->pat_blt_brush.pattern + 1, 7) != 0)
{
present |= 0x0800;
out_uint8a(self->out_s, brush->pattern + 1, 7);
g_memcpy(self->pat_blt_brush.pattern + 1, brush->pattern + 1, 7);
}
present_ptr[0] = present;
present_ptr[1] = present >> 8;
return 0;
}
/*****************************************************************************/
/* returns error */
/* send a dest blt order */
/* max size 21 */
int xrdp_orders_dest_blt(struct xrdp_orders* self, int x, int y,
int cx, int cy, int rop,
struct xrdp_rect* rect)
{
int order_flags;
int vals[8];
int present;
char* present_ptr;
xrdp_orders_check(self, 21);
self->order_count++;
order_flags = RDP_ORDER_STANDARD;
if (self->last_order != RDP_ORDER_DESTBLT)
{
order_flags |= RDP_ORDER_CHANGE;
}
self->last_order = RDP_ORDER_DESTBLT;
if (rect != 0)
{
order_flags |= RDP_ORDER_BOUNDS;
if (xrdp_orders_last_bounds(self, rect))
{
order_flags |= RDP_ORDER_LASTBOUNDS;
}
}
vals[0] = x;
vals[1] = self->dest_blt_x;
vals[2] = y;
vals[3] = self->dest_blt_y;
vals[4] = cx;
vals[5] = self->dest_blt_cx;
vals[6] = cy;
vals[7] = self->dest_blt_cy;
if (xrdp_orders_send_delta(self, vals, 8))
{
order_flags |= RDP_ORDER_DELTA;
}
out_uint8(self->out_s, order_flags);
if (order_flags & RDP_ORDER_CHANGE)
{
out_uint8(self->out_s, self->last_order)
}
present = 0;
present_ptr = self->out_s->p; /* hold 1 byte present pointer */
out_uint8s(self->out_s, 1)
if ((order_flags & RDP_ORDER_BOUNDS) &&
!(order_flags & RDP_ORDER_LASTBOUNDS))
{
xrdp_orders_out_bounds(self, rect);
}
if (x != self->dest_blt_x)
{
present |= 0x01;
if (order_flags & RDP_ORDER_DELTA)
{
out_uint8(self->out_s, x - self->dest_blt_x);
}
else
{
out_uint16_le(self->out_s, x);
}
self->dest_blt_x = x;
}
if (y != self->dest_blt_y)
{
present |= 0x02;
if (order_flags & RDP_ORDER_DELTA)
{
out_uint8(self->out_s, y - self->dest_blt_y);
}
else
{
out_uint16_le(self->out_s, y);
}
self->dest_blt_y = y;
}
if (cx != self->dest_blt_cx)
{
present |= 0x04;
if (order_flags & RDP_ORDER_DELTA)
{
out_uint8(self->out_s, cx - self->dest_blt_cx);
}
else
{
out_uint16_le(self->out_s, cx);
}
self->dest_blt_cx = cx;
}
if (cy != self->dest_blt_cy)
{
present |= 0x08;
if (order_flags & RDP_ORDER_DELTA)
{
out_uint8(self->out_s, cy - self->dest_blt_cy);
}
else
{
out_uint16_le(self->out_s, cy);
}
self->dest_blt_cy = cy;
}
if (rop != self->dest_blt_rop)
{
present |= 0x10;
out_uint8(self->out_s, rop);
self->dest_blt_rop = rop;
}
present_ptr[0] = present;
return 0;
}
/*****************************************************************************/
/* returns error */
/* send a line order */
/* max size 32 */
int xrdp_orders_line(struct xrdp_orders* self, int mix_mode,
int startx, int starty,
int endx, int endy, int rop, int bg_color,
struct xrdp_pen* pen,
struct xrdp_rect* rect)
{
int order_flags;
int vals[8];
int present;
char* present_ptr;
struct xrdp_pen blank_pen;
xrdp_orders_check(self, 32);
self->order_count++;
order_flags = RDP_ORDER_STANDARD;
if (self->last_order != RDP_ORDER_LINE)
{
order_flags |= RDP_ORDER_CHANGE;
}
self->last_order = RDP_ORDER_LINE;
if (rect != 0)
{
order_flags |= RDP_ORDER_BOUNDS;
if (xrdp_orders_last_bounds(self, rect))
{
order_flags |= RDP_ORDER_LASTBOUNDS;
}
}
vals[0] = startx;
vals[1] = self->line_startx;
vals[2] = starty;
vals[3] = self->line_starty;
vals[4] = endx;
vals[5] = self->line_endx;
vals[6] = endy;
vals[7] = self->line_endy;
if (xrdp_orders_send_delta(self, vals, 8))
{
order_flags |= RDP_ORDER_DELTA;
}
out_uint8(self->out_s, order_flags);
if (order_flags & RDP_ORDER_CHANGE)
{
out_uint8(self->out_s, self->last_order);
}
present = 0;
present_ptr = self->out_s->p; /* hold 2 byte present pointer */
out_uint8s(self->out_s, 2)
if ((order_flags & RDP_ORDER_BOUNDS) &&
!(order_flags & RDP_ORDER_LASTBOUNDS))
{
xrdp_orders_out_bounds(self, rect);
}
if (mix_mode != self->line_mix_mode)
{
present |= 0x0001;
out_uint16_le(self->out_s, mix_mode)
self->line_mix_mode = mix_mode;
}
if (startx != self->line_startx)
{
present |= 0x0002;
if (order_flags & RDP_ORDER_DELTA)
{
out_uint8(self->out_s, startx - self->line_startx);
}
else
{
out_uint16_le(self->out_s, startx);
}
self->line_startx = startx;
}
if (starty != self->line_starty)
{
present |= 0x0004;
if (order_flags & RDP_ORDER_DELTA)
{
out_uint8(self->out_s, starty - self->line_starty);
}
else
{
out_uint16_le(self->out_s, starty);
}
self->line_starty = starty;
}
if (endx != self->line_endx)
{
present |= 0x0008;
if (order_flags & RDP_ORDER_DELTA)
{
out_uint8(self->out_s, endx - self->line_endx);
}
else
{
out_uint16_le(self->out_s, endx);
}
self->line_endx = endx;
}
if (endy != self->line_endy)
{
present |= 0x0010;
if (order_flags & RDP_ORDER_DELTA)
{
out_uint8(self->out_s, endy - self->line_endy);
}
else
{
out_uint16_le(self->out_s, endy);
}
self->line_endy = endy;
}
if (bg_color != self->line_bg_color)
{
present |= 0x0020;
out_uint8(self->out_s, bg_color)
out_uint8(self->out_s, bg_color >> 8)
out_uint8(self->out_s, bg_color >> 16)
self->line_bg_color = bg_color;
}
if (rop != self->line_rop)
{
present |= 0x0040;
out_uint8(self->out_s, rop)
self->line_rop = rop;
}
if (pen == 0)
{
g_memset(&blank_pen, 0, sizeof(struct xrdp_pen));
pen = &blank_pen;
}
if (pen->style != self->line_pen.style)
{
present |= 0x0080;
out_uint8(self->out_s, pen->style)
self->line_pen.style = pen->style;
}
if (pen->width != self->line_pen.width)
{
present |= 0x0100;
out_uint8(self->out_s, pen->width)
self->line_pen.width = pen->width;
}
if (pen->color != self->line_pen.color)
{
present |= 0x0200;
out_uint8(self->out_s, pen->color)
out_uint8(self->out_s, pen->color >> 8)
out_uint8(self->out_s, pen->color >> 16)
self->line_pen.color = pen->color;
}
present_ptr[0] = present;
present_ptr[1] = present >> 8;
return 0;
}
/*****************************************************************************/
/* returns error */
/* send a mem blt order */
/* max size 30 */
int xrdp_orders_mem_blt(struct xrdp_orders* self, int cache_id,
int color_table, int x, int y, int cx, int cy,
int rop, int srcx, int srcy,
int cache_idx, struct xrdp_rect* rect)
{
int order_flags;
int vals[12];
int present;
char* present_ptr;
xrdp_orders_check(self, 30);
self->order_count++;
order_flags = RDP_ORDER_STANDARD;
if (self->last_order != RDP_ORDER_MEMBLT)
{
order_flags |= RDP_ORDER_CHANGE;
}
self->last_order = RDP_ORDER_MEMBLT;
if (rect != 0)
{
order_flags |= RDP_ORDER_BOUNDS;
if (xrdp_orders_last_bounds(self, rect))
{
order_flags |= RDP_ORDER_LASTBOUNDS;
}
}
vals[0] = x;
vals[1] = self->mem_blt_x;
vals[2] = y;
vals[3] = self->mem_blt_y;
vals[4] = cx;
vals[5] = self->mem_blt_cx;
vals[6] = cy;
vals[7] = self->mem_blt_cy;
vals[8] = srcx;
vals[9] = self->mem_blt_srcx;
vals[10] = srcy;
vals[11] = self->mem_blt_srcy;
if (xrdp_orders_send_delta(self, vals, 12))
{
order_flags |= RDP_ORDER_DELTA;
}
out_uint8(self->out_s, order_flags);
if (order_flags & RDP_ORDER_CHANGE)
{
out_uint8(self->out_s, self->last_order)
}
present = 0;
present_ptr = self->out_s->p; /* hold 2 byte present pointer, todo */
out_uint8s(self->out_s, 2) /* this can be smaller, */
/* see RDP_ORDER_SMALL and RDP_ORDER_TINY */
if ((order_flags & RDP_ORDER_BOUNDS) &&
!(order_flags & RDP_ORDER_LASTBOUNDS))
{
xrdp_orders_out_bounds(self, rect);
}
if (cache_id != self->mem_blt_cache_id ||
color_table != self->mem_blt_color_table)
{
present |= 0x0001;
out_uint8(self->out_s, cache_id);
out_uint8(self->out_s, color_table);
self->mem_blt_cache_id = cache_id;
self->mem_blt_color_table = color_table;
}
if (x != self->mem_blt_x)
{
present |= 0x0002;
if (order_flags & RDP_ORDER_DELTA)
{
out_uint8(self->out_s, x - self->mem_blt_x);
}
else
{
out_uint16_le(self->out_s, x);
}
self->mem_blt_x = x;
}
if (y != self->mem_blt_y)
{
present |= 0x0004;
if (order_flags & RDP_ORDER_DELTA)
{
out_uint8(self->out_s, y - self->mem_blt_y);
}
else
{
out_uint16_le(self->out_s, y);
}
self->mem_blt_y = y;
}
if (cx != self->mem_blt_cx)
{
present |= 0x0008;
if (order_flags & RDP_ORDER_DELTA)
{
out_uint8(self->out_s, cx - self->mem_blt_cx);
}
else
{
out_uint16_le(self->out_s, cx);
}
self->mem_blt_cx = cx;
}
if (cy != self->mem_blt_cy)
{
present |= 0x0010;
if (order_flags & RDP_ORDER_DELTA)
{
out_uint8(self->out_s, cy - self->mem_blt_cy);
}
else
{
out_uint16_le(self->out_s, cy);
}
self->mem_blt_cy = cy;
}
if (rop != self->mem_blt_rop)
{
present |= 0x0020;
out_uint8(self->out_s, rop);
self->mem_blt_rop = rop;
}
if (srcx != self->mem_blt_srcx)
{
present |= 0x0040;
if (order_flags & RDP_ORDER_DELTA)
{
out_uint8(self->out_s, srcx - self->mem_blt_srcx);
}
else
{
out_uint16_le(self->out_s, srcx);
}
self->mem_blt_srcx = srcx;
}
if (srcy != self->mem_blt_srcy)
{
present |= 0x0080;
if (order_flags & RDP_ORDER_DELTA)
{
out_uint8(self->out_s, srcy - self->mem_blt_srcy);
}
else
{
out_uint16_le(self->out_s, srcy);
}
self->mem_blt_srcy = srcy;
}
if (cache_idx != self->mem_blt_cache_idx)
{
present |= 0x0100;
out_uint16_le(self->out_s, cache_idx);
self->mem_blt_cache_idx = cache_idx;
}
present_ptr[0] = present;
present_ptr[1] = present >> 8;
return 0;
}
/*****************************************************************************/
/* returns error */
int xrdp_orders_text(struct xrdp_orders* self,
int font, int flags, int mixmode,
int fg_color, int bg_color,
int clip_left, int clip_top,
int clip_right, int clip_bottom,
int box_left, int box_top,
int box_right, int box_bottom,
int x, int y, char* data, int data_len,
struct xrdp_rect* rect)
{
int order_flags;
int present;
char* present_ptr;
xrdp_orders_check(self, 100);
self->order_count++;
order_flags = RDP_ORDER_STANDARD;
if (self->last_order != RDP_ORDER_TEXT2)
{
order_flags |= RDP_ORDER_CHANGE;
}
self->last_order = RDP_ORDER_TEXT2;
if (rect != 0)
{
order_flags |= RDP_ORDER_BOUNDS;
if (xrdp_orders_last_bounds(self, rect))
{
order_flags |= RDP_ORDER_LASTBOUNDS;
}
}
out_uint8(self->out_s, order_flags);
if (order_flags & RDP_ORDER_CHANGE)
{
out_uint8(self->out_s, self->last_order);
}
present = 0;
present_ptr = self->out_s->p; /* hold 3 byte present pointer, todo */
out_uint8s(self->out_s, 3) /* this can be smaller, */
/* see RDP_ORDER_SMALL and RDP_ORDER_TINY */
if ((order_flags & RDP_ORDER_BOUNDS) &&
!(order_flags & RDP_ORDER_LASTBOUNDS))
{
xrdp_orders_out_bounds(self, rect);
}
if (font != self->text_font)
{
present |= 0x000001;
out_uint8(self->out_s, font);
self->text_font = font;
}
if (flags != self->text_flags)
{
present |= 0x000002;
out_uint8(self->out_s, flags);
self->text_flags = flags;
}
/* unknown */
if (mixmode != self->text_mixmode)
{
present |= 0x000008;
out_uint8(self->out_s, mixmode);
self->text_mixmode = mixmode;
}
if (fg_color != self->text_fg_color)
{
present |= 0x000010;
out_uint8(self->out_s, fg_color)
out_uint8(self->out_s, fg_color >> 8)
out_uint8(self->out_s, fg_color >> 16)
self->text_fg_color = fg_color;
}
if (bg_color != self->text_bg_color)
{
present |= 0x000020;
out_uint8(self->out_s, bg_color)
out_uint8(self->out_s, bg_color >> 8)
out_uint8(self->out_s, bg_color >> 16)
self->text_bg_color = bg_color;
}
if (clip_left != self->text_clip_left)
{
present |= 0x000040;
out_uint16_le(self->out_s, clip_left);
self->text_clip_left = clip_left;
}
if (clip_top != self->text_clip_top)
{
present |= 0x000080;
out_uint16_le(self->out_s, clip_top);
self->text_clip_top = clip_top;
}
if (clip_right != self->text_clip_right)
{
present |= 0x000100;
out_uint16_le(self->out_s, clip_right);
self->text_clip_right = clip_right;
}
if (clip_bottom != self->text_clip_bottom)
{
present |= 0x000200;
out_uint16_le(self->out_s, clip_bottom);
self->text_clip_bottom = clip_bottom;
}
if (box_left != self->text_box_left)
{
present |= 0x000400;
out_uint16_le(self->out_s, box_left);
self->text_box_left = box_left;
}
if (box_top != self->text_box_top)
{
present |= 0x000800;
out_uint16_le(self->out_s, box_top);
self->text_box_top = box_top;
}
if (box_right != self->text_box_right)
{
present |= 0x001000;
out_uint16_le(self->out_s, box_right);
self->text_box_right = box_right;
}
if (box_bottom != self->text_box_bottom)
{
present |= 0x002000;
out_uint16_le(self->out_s, box_bottom);
self->text_box_bottom = box_bottom;
}
if (x != self->text_x)
{
present |= 0x080000;
out_uint16_le(self->out_s, x);
self->text_x = x;
}
if (y != self->text_y)
{
present |= 0x100000;
out_uint16_le(self->out_s, y);
self->text_y = y;
}
{
/* always send text */
present |= 0x200000;
out_uint8(self->out_s, data_len);
out_uint8a(self->out_s, data, data_len);
}
/* send 3 byte present */
present_ptr[0] = present;
present_ptr[1] = present >> 8;
present_ptr[2] = present >> 16;
return 0;
}
/*****************************************************************************/
/* returns error */
/* when a palette gets sent, send the main palette too */
int xrdp_orders_send_palette(struct xrdp_orders* self, int* palette,
int cache_id)
{
int order_flags;
int len;
int i;
xrdp_orders_check(self, 2000);
self->order_count++;
order_flags = RDP_ORDER_STANDARD | RDP_ORDER_SECONDARY;
out_uint8(self->out_s, order_flags);
len = 1027 - 7; /* length after type minus 7 */
out_uint16_le(self->out_s, len);
out_uint16_le(self->out_s, 0); /* flags */
out_uint8(self->out_s, RDP_ORDER_COLCACHE); /* type */
out_uint8(self->out_s, cache_id);
out_uint16_le(self->out_s, 256); /* num colors */
for (i = 0; i < 256; i++)
{
out_uint8(self->out_s, palette[i]);
out_uint8(self->out_s, palette[i] >> 8);
out_uint8(self->out_s, palette[i] >> 16);
out_uint8(self->out_s, 0);
}
return 0;
}
/*****************************************************************************/
/* returns error */
/* max size width * height * Bpp + 16 */
int xrdp_orders_send_raw_bitmap(struct xrdp_orders* self,
struct xrdp_bitmap* bitmap,
int cache_id, int cache_idx)
{
int order_flags;
int len;
int bufsize;
int Bpp;
int i;
int j;
int pixel;
int e;
e = bitmap->width % 4;
if (e != 0)
{
e = 4 - e;
}
Bpp = (bitmap->bpp + 7) / 8;
bufsize = (bitmap->width + e) * bitmap->height * Bpp;
xrdp_orders_check(self, bufsize + 16);
self->order_count++;
order_flags = RDP_ORDER_STANDARD | RDP_ORDER_SECONDARY;
out_uint8(self->out_s, order_flags);
len = (bufsize + 9) - 7; /* length after type minus 7 */
out_uint16_le(self->out_s, len);
out_uint16_le(self->out_s, 8); /* flags */
out_uint8(self->out_s, RDP_ORDER_RAW_BMPCACHE); /* type */
out_uint8(self->out_s, cache_id);
out_uint8s(self->out_s, 1); /* pad */
out_uint8(self->out_s, bitmap->width + e);
out_uint8(self->out_s, bitmap->height);
out_uint8(self->out_s, bitmap->bpp);
out_uint16_le(self->out_s, bufsize);
out_uint16_le(self->out_s, cache_idx);
for (i = bitmap->height - 1; i >= 0; i--)
{
for (j = 0; j < bitmap->width; j++)
{
pixel = xrdp_bitmap_get_pixel(bitmap, j, i);
if (Bpp == 3)
{
out_uint8(self->out_s, pixel >> 16);
out_uint8(self->out_s, pixel >> 8);
out_uint8(self->out_s, pixel);
}
else if (Bpp == 2)
{
out_uint8(self->out_s, pixel);
out_uint8(self->out_s, pixel >> 8);
}
else if (Bpp == 1)
{
out_uint8(self->out_s, pixel);
}
}
for (j = 0; j < e; j++)
{
out_uint8s(self->out_s, Bpp);
}
}
return 0;
}
/*****************************************************************************/
/* returns error */
/* max size width * height * Bpp + 16 */
int xrdp_orders_send_bitmap(struct xrdp_orders* self,
struct xrdp_bitmap* bitmap,
int cache_id, int cache_idx)
{
int order_flags;
int len;
int bufsize;
int Bpp;
int i;
int lines_sending;
int e;
struct stream* s;
struct stream* temp_s;
char* p;
if (bitmap->width > 64)
{
g_printf("error, width > 64\n\r");
return 1;
}
if (bitmap->height > 64)
{
g_printf("error, height > 64\n\r");
return 1;
}
e = bitmap->width % 4;
if (e != 0)
{
e = 4 - e;
}
make_stream(s);
init_stream(s, 8192);
make_stream(temp_s);
init_stream(temp_s, 8192);
p = s->p;
i = bitmap->height;
lines_sending = xrdp_bitmap_compress(bitmap->data, bitmap->width,
bitmap->height,
s, bitmap->bpp,
8192,
i - 1, temp_s, e);
if (lines_sending != bitmap->height)
{
free_stream(s);
free_stream(temp_s);
g_printf("error in xrdp_orders_send_bitmap, lines_sending(%d) != \
bitmap->height(%d)\n\r", lines_sending, bitmap->height);
return 1;
}
bufsize = s->p - p;
Bpp = (bitmap->bpp + 7) / 8;
xrdp_orders_check(self, bufsize + 16);
self->order_count++;
order_flags = RDP_ORDER_STANDARD | RDP_ORDER_SECONDARY;
out_uint8(self->out_s, order_flags);
len = (bufsize + 9 + 8) - 7; /* length after type minus 7 */
out_uint16_le(self->out_s, len);
out_uint16_le(self->out_s, 8); /* flags */
out_uint8(self->out_s, RDP_ORDER_BMPCACHE); /* type */
out_uint8(self->out_s, cache_id);
out_uint8s(self->out_s, 1); /* pad */
out_uint8(self->out_s, bitmap->width + e);
out_uint8(self->out_s, bitmap->height);
out_uint8(self->out_s, bitmap->bpp);
out_uint16_le(self->out_s, bufsize + 8);
out_uint16_le(self->out_s, cache_idx);
out_uint8s(self->out_s, 2); /* pad */
out_uint16_le(self->out_s, bufsize);
out_uint16_le(self->out_s, (bitmap->width + e) * Bpp); /* line size */
out_uint16_le(self->out_s, (bitmap->width + e) *
Bpp * bitmap->height); /* final size */
out_uint8a(self->out_s, s->data, bufsize);
free_stream(s);
free_stream(temp_s);
return 0;
}
/*****************************************************************************/
/* returns error */
/* max size datasize + 18*/
/* todo, only sends one for now */
int xrdp_orders_send_font(struct xrdp_orders* self,
struct xrdp_font_item* font_item,
int font_index, int char_index)
{
int order_flags;
int datasize;
int len;
datasize = FONT_DATASIZE(font_item);
xrdp_orders_check(self, datasize + 18);
self->order_count++;
order_flags = RDP_ORDER_STANDARD | RDP_ORDER_SECONDARY;
out_uint8(self->out_s, order_flags);
len = (datasize + 12) - 7; /* length after type minus 7 */
out_uint16_le(self->out_s, len);
out_uint16_le(self->out_s, 8); /* flags */
out_uint8(self->out_s, RDP_ORDER_FONTCACHE); /* type */
out_uint8(self->out_s, font_index);
out_uint8(self->out_s, 1); /* num of chars */
out_uint16_le(self->out_s, char_index);
out_uint16_le(self->out_s, font_item->offset);
out_uint16_le(self->out_s, font_item->baseline);
out_uint16_le(self->out_s, font_item->width);
out_uint16_le(self->out_s, font_item->height);
out_uint8a(self->out_s, font_item->data, datasize);
return 0;
}
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