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
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
|
/*
Copyright (C) 2009 Red Hat, Inc.
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, see <http://www.gnu.org/licenses/>.
*/
#include "common.h"
#include <map>
#include "platform_utils.h"
#include "utils.h"
#include "threads.h"
void string_vprintf(std::string& str, const char* format, va_list ap)
{
int buf_size = 256;
for (;;) {
AutoArray<char> buf(new char[buf_size]);
int r = vsnprintf_s(buf.get(), buf_size, buf_size - 1, format, ap);
if (r != -1) {
str = buf.get();
return;
}
buf_size *= 2;
}
}
HDC create_compatible_dc()
{
HDC dc = CreateCompatibleDC(NULL);
if (!dc) {
THROW("create compatible DC failed");
}
return dc;
}
HBITMAP get_bitmap_res(int id)
{
HBITMAP bitmap = LoadBitmap(GetModuleHandle(NULL), MAKEINTRESOURCE(id));
if (!bitmap) {
THROW("get bitmpa #%d failed", id);
}
return bitmap;
}
HBITMAP get_alpha_bitmap_res(int id)
{
AutoGDIObject bitmap(LoadImage(GetModuleHandle(NULL), MAKEINTRESOURCE(id), IMAGE_BITMAP, 0, 0,
LR_DEFAULTCOLOR | LR_CREATEDIBSECTION | LR_SHARED));
if (!bitmap.valid()) {
THROW("get bitmpa #%d failed", id);
}
BITMAP src_info;
GetObject(bitmap.get(), sizeof(src_info), &src_info);
if (src_info.bmBitsPixel != 32 || src_info.bmPlanes != 1) {
THROW("invalid format #%d ", id);
}
LONG src_size = src_info.bmHeight * src_info.bmWidthBytes;
AutoArray<uint8_t> src_pixels(new uint8_t[src_size]);
LONG ncopy = GetBitmapBits((HBITMAP)bitmap.get(), src_size, src_pixels.get());
if (ncopy != src_size) {
THROW("get vitmap bits failed, %u", GetLastError());
}
AutoDC auto_dc(create_compatible_dc());
BITMAPINFO dest_info;
uint8_t* dest;
dest_info.bmiHeader.biSize = sizeof(dest_info.bmiHeader);
dest_info.bmiHeader.biWidth = src_info.bmWidth;
dest_info.bmiHeader.biHeight = -src_info.bmHeight;
dest_info.bmiHeader.biPlanes = 1;
dest_info.bmiHeader.biBitCount = 32;
dest_info.bmiHeader.biCompression = BI_RGB;
dest_info.bmiHeader.biSizeImage = 0;
dest_info.bmiHeader.biXPelsPerMeter = dest_info.bmiHeader.biYPelsPerMeter = 0;
dest_info.bmiHeader.biClrUsed = 0;
dest_info.bmiHeader.biClrImportant = 0;
HBITMAP ret = CreateDIBSection(auto_dc.get(), &dest_info, 0, (VOID**)&dest, NULL, 0);
if (!ret) {
THROW("create bitmap failed, %u", GetLastError());
}
uint8_t* src_line = src_pixels.get();
for (int i = 0; i < src_info.bmHeight; i++, src_line += src_info.bmWidthBytes) {
uint8_t* src = src_line;
for (int j = 0; j < src_info.bmWidth; j++) {
dest[3] = src[3];
double alpha = (double)dest[3] / 0xff;
dest[2] = (uint8_t)(alpha * src[2]);
dest[1] = (uint8_t)(alpha * src[1]);
dest[0] = (uint8_t)(alpha * src[0]);
src += 4;
dest += 4;
}
}
return ret;
}
static std::map<int, const char*> errors_map;
static Mutex errors_map_mutex;
const char* sys_err_to_str(int error)
{
Lock lock(errors_map_mutex);
if (errors_map.find(error) == errors_map.end()) {
LPSTR msg;
if (!FormatMessageA(FORMAT_MESSAGE_ALLOCATE_BUFFER | FORMAT_MESSAGE_FROM_SYSTEM |
FORMAT_MESSAGE_IGNORE_INSERTS, NULL, error,
MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT),
(LPSTR)&msg, 0, NULL)) {
const int BUF_SIZE = 20;
msg = new char[BUF_SIZE];
_snprintf(msg, BUF_SIZE, "errno %d", error);
} else {
char* new_line;
if ((new_line = strrchr(msg, '\r'))) {
*new_line = 0;
}
}
errors_map[error] = msg;
}
return errors_map[error];
}
int inet_aton(const char* ip, struct in_addr* in_addr)
{
unsigned long addr = inet_addr(ip);
if (addr == INADDR_NONE) {
return 0;
}
in_addr->S_un.S_addr = addr;
return 1;
}
|
