1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
|
/*
* image.c
*
* Part of gwm, the Gratuitous Window Manager,
* by Gary Wong, <gtw@gnu.org>.
*
* Copyright (C) 2009 Gary Wong
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of version 3 of the GNU General Public License as
* published by the Free Software Foundation.
*
* 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, see <http://www.gnu.org/licenses/>.
*
* $Id$
*/
#include <config.h>
#include <xcb/xcb.h>
#include "gwm.h"
#include "image.h"
extern xcb_void_cookie_t put_image( xcb_drawable_t drawable, xcb_gcontext_t gc,
uint16_t width, uint16_t height, int16_t x,
int16_t y, uint8_t left_pad, uint8_t depth,
uint32_t len, const uint8_t *data ) {
static uint16_t max;
if( !max )
max = xcb_get_setup( c )->maximum_request_length << 2;
if( len + sizeof (xcb_put_image_request_t ) < max )
return xcb_put_image( c, XCB_IMAGE_FORMAT_Z_PIXMAP, drawable,
gc, width, height, x, y, left_pad,
depth, len, data );
else {
int linesize = len / height;
int lines = ( max - sizeof (xcb_put_image_request_t) ) / linesize;
while( height > lines ) {
xcb_put_image( c, XCB_IMAGE_FORMAT_Z_PIXMAP, drawable,
gc, width, lines, x, y, left_pad,
depth, lines * linesize, data );
y += lines;
height -= lines;
len -= lines * linesize;
data += lines * linesize;
}
return xcb_put_image( c, XCB_IMAGE_FORMAT_Z_PIXMAP, drawable,
gc, width, height, x, y, left_pad,
depth, len, data );
}
}
|
