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
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
|
// -*- mode: C++; indent-tabs-mode: nil; c-basic-offset: 2; -*-
#include "config.h"
#include "surface.hh"
#include "display.hh"
#include "screeninfo.hh"
#include "rendercolor.hh"
extern "C" {
#include <X11/Xutil.h>
#include <cstring>
}
namespace otk {
Surface::Surface(int screen, const Size &size)
: _screen(screen),
_size(size),
_pixel_data(new pixel32[size.width()*size.height()]),
_pixmap(None),
_xftdraw(0)
{
}
Surface::~Surface()
{
destroyObjects();
freePixelData();
}
void Surface::freePixelData()
{
if (_pixel_data) {
delete [] _pixel_data;
_pixel_data = 0;
}
}
void Surface::setPixmap(const RenderColor &color)
{
assert(_pixel_data);
if (_pixmap == None)
createObjects();
XFillRectangle(**display, _pixmap, color.gc(), 0, 0,
_size.width(), _size.height());
pixel32 val = (color.red() << default_red_shift) |
(color.green() << default_green_shift) |
(color.blue() << default_blue_shift);
for (unsigned int i = 0, s = _size.width() * _size.height(); i < s; ++i)
_pixel_data[i] = val;
}
void Surface::setPixmap(XImage *image)
{
assert(_pixel_data);
assert(image->width == _size.width());
assert(image->height == _size.height());
if (_pixmap == None)
createObjects();
XPutImage(**display, _pixmap, DefaultGC(**display, _screen),
image, 0, 0, 0, 0, _size.width(), _size.height());
}
void Surface::createObjects()
{
assert(_pixmap == None); assert(!_xftdraw);
const ScreenInfo *info = display->screenInfo(_screen);
_pixmap = XCreatePixmap(**display, info->rootWindow(),
_size.width(), _size.height(), info->depth());
assert(_pixmap != None);
_xftdraw = XftDrawCreate(**display, _pixmap,
info->visual(), info->colormap());
assert(_xftdraw);
}
void Surface::destroyObjects()
{
if (_xftdraw) {
XftDrawDestroy(_xftdraw);
_xftdraw = 0;
}
if (_pixmap != None) {
XFreePixmap(**display, _pixmap);
_pixmap = None;
}
}
}
|
