1 /* vim:expandtab:ts=2 sw=2:
2 */
3 /* Grafx2 - The Ultimate 256-color bitmap paint program
4
5 Copyright owned by various GrafX2 authors, see COPYRIGHT.txt for details.
6
7 Grafx2 is free software; you can redistribute it and/or
8 modify it under the terms of the GNU General Public License
9 as published by the Free Software Foundation; version 2
10 of the License.
11
12 Grafx2 is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 GNU General Public License for more details.
16
17 You should have received a copy of the GNU General Public License
18 along with Grafx2; if not, see <http://www.gnu.org/licenses/>
19 */
20
21 #if defined(_MSC_VER)
22 #include <windows.h>
23 #if _MSC_VER < 1900
24 #define snprintf _snprintf
25 #endif
26 #endif
27 #if defined(USE_SDL2)
28 #include <SDL.h>
29 #endif
30 #include <stdio.h>
31 #include <string.h>
32 #include "gfx2log.h"
33
34 GFX2_Log_priority_T GFX2_verbosity_level = GFX2_INFO;
35
GFX2_Log(GFX2_Log_priority_T priority,const char * fmt,...)36 extern void GFX2_Log(GFX2_Log_priority_T priority, const char * fmt, ...)
37 {
38 va_list ap;
39
40 va_start(ap, fmt);
41 GFX2_LogV(priority, fmt, ap);
42 va_end(ap);
43 }
44
GFX2_LogV(GFX2_Log_priority_T priority,const char * fmt,va_list ap)45 extern void GFX2_LogV(GFX2_Log_priority_T priority, const char * fmt, va_list ap)
46 {
47 #if !defined(_DEBUG)
48 if ((unsigned)GFX2_verbosity_level < (unsigned)priority)
49 return;
50 #endif
51 #if defined(USE_SDL2)
52 {
53 int sdl_priority;
54 switch(priority)
55 {
56 case GFX2_ERROR:
57 sdl_priority = SDL_LOG_PRIORITY_ERROR;
58 break;
59 case GFX2_WARNING:
60 sdl_priority = SDL_LOG_PRIORITY_WARN;
61 break;
62 case GFX2_INFO:
63 sdl_priority = SDL_LOG_PRIORITY_INFO;
64 break;
65 case GFX2_DEBUG:
66 sdl_priority = SDL_LOG_PRIORITY_DEBUG;
67 break;
68 default:
69 sdl_priority = SDL_LOG_PRIORITY_CRITICAL; // unknown
70 }
71 SDL_LogMessageV(SDL_LOG_CATEGORY_APPLICATION, sdl_priority, fmt, ap);
72 }
73 #else
74 vfprintf((unsigned)priority >= GFX2_INFO ? stdout : stderr, fmt, ap);
75 #endif
76 #if defined(_MSC_VER) && defined(_DEBUG) && !defined(USE_SDL2)
77 {
78 char message[1024];
79 vsnprintf(message, sizeof(message), fmt, ap);
80 OutputDebugStringA(message);
81 }
82 #endif
83 }
84
GFX2_LogHexDump(GFX2_Log_priority_T priority,const char * header,const byte * data,long offset,long count)85 extern void GFX2_LogHexDump(GFX2_Log_priority_T priority, const char * header, const byte * data, long offset, long count)
86 {
87 char line[128];
88 long i;
89 int previous_allzero_count = 0;
90 while (count > 0)
91 {
92 int p = 0, r;
93 int allzero = 1;
94 for (i = 0; i < count && i < 16; i++)
95 {
96 if (data[offset+i] != 0)
97 {
98 allzero = 0;
99 break;
100 }
101 }
102 if (previous_allzero_count && allzero)
103 {
104 // prints a single "*" for multiple line of 00's
105 if (previous_allzero_count == 1)
106 GFX2_Log(priority, "*\n");
107 }
108 else
109 {
110 r = snprintf(line + p, sizeof(line) - p, "%s%06lX:", header, offset);
111 if (r < 0)
112 return;
113 p += r;
114 for (i = 0; i < count && i < 16; i++)
115 {
116 r = snprintf(line + p, sizeof(line) - p, " %02x", data[offset+i]);
117 if (r < 0)
118 return;
119 p += r;
120 if (i == 7)
121 line[p++] = ' ';
122 }
123 if (i < 16)
124 {
125 if (i < 7)
126 line[p++] = ' ';
127 memset(line + p, ' ', 3 * (16 - i));
128 p += 3 * (16 - i);
129 }
130 line[p++] = ' ';
131 line[p++] = '|';
132 for (i = 0; i < count && i < 16; i++)
133 line[p++] = data[offset+i]>=32 && data[offset+i]<127 ? data[offset+i] : '.';
134 line[p++] = '\0';
135 GFX2_Log(priority, "%s\n", line);
136 }
137 if (allzero)
138 previous_allzero_count++;
139 else
140 previous_allzero_count = 0;
141 count -= i;
142 offset += i;
143 }
144 // print the ending offset if there was "*"
145 if (previous_allzero_count > 1)
146 GFX2_Log(priority, "%s%06lX\n", header, offset);
147 }
148