filename | src/util.c |
changeset | 1065:bc1cc0c54917 |
prev | 1042:0fd066956482 |
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author | nkeynes |
date | Sun Jul 05 13:54:48 2009 +1000 (14 years ago) |
permissions | -rw-r--r-- |
last change | No-op merge lxdream-mem to tip to remove head (Long since merged in actuality) |
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1 /**
2 * $Id$
3 *
4 * Miscellaneous utility functions.
5 *
6 * Copyright (c) 2005 Nathan Keynes.
7 *
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License as published by
10 * the Free Software Foundation; either version 2 of the License, or
11 * (at your option) any later version.
12 *
13 * This program is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 * GNU General Public License for more details.
17 */
19 #define HAVE_EXECINFO_H 1
21 #include <assert.h>
22 #include <ctype.h>
23 #include <stdarg.h>
24 #include <stdio.h>
25 #include <stdlib.h>
26 #include <signal.h>
27 #include <time.h>
28 #include <zlib.h>
29 #include <glib.h>
30 #include <png.h>
31 #include "dream.h"
32 #include "display.h"
33 #include "dreamcast.h"
34 #include "gui.h"
35 #include "sh4/sh4.h"
37 char *msg_levels[] = { "FATAL", "ERROR", "WARN", "INFO", "DEBUG", "TRACE" };
38 int global_msg_level = EMIT_WARN;
40 static void report_crash( int signo, siginfo_t *info, void *ptr )
41 {
42 char buf[128];
44 fprintf( stderr, "--- Aborting with signal %d ---\n", signo );
45 // Get gdb to print a nice backtrace for us
46 snprintf( buf, 128, "gdb -batch -f --quiet --pid=%d -ex bt", getpid() );
47 system(buf);
49 abort();
50 }
52 void install_crash_handler(void)
53 {
54 struct sigaction sa;
56 sa.sa_sigaction = report_crash;
57 sigemptyset(&sa.sa_mask);
58 sa.sa_flags = SA_RESETHAND|SA_SIGINFO;
59 sigaction( SIGSEGV, &sa, NULL );
60 }
63 void fwrite_string( const char *s, FILE *f )
64 {
65 uint32_t len = 0;
66 if( s == NULL ) {
67 fwrite( &len, sizeof(len), 1, f );
68 } else {
69 len = strlen(s)+1;
70 fwrite( &len, sizeof(len), 1, f );
71 fwrite( s, len, 1, f );
72 }
73 }
75 int fread_string( char *s, int maxlen, FILE *f )
76 {
77 uint32_t len;
78 fread( &len, sizeof(len), 1, f );
79 if( len != 0 ) {
80 fread( s, len > maxlen ? maxlen : len, 1, f );
81 }
82 return len;
83 }
85 int fwrite_gzip( void *p, size_t sz, size_t count, FILE *f )
86 {
87 uLongf size = sz*count;
88 uLongf csize = ((int)(size*1.001))+13;
89 unsigned char *tmp = g_malloc0( csize );
90 int status = compress( tmp, &csize, p, size );
91 assert( status == Z_OK );
92 uint32_t wsize = (uint32_t)csize;
93 fwrite( &wsize, sizeof(wsize), 1, f );
94 int written = fwrite( tmp, csize, 1, f );
95 g_free(tmp);
97 /* Could be finer-grained, but this is enough to know it succeeded/failed */
98 if( written == 1 ) {
99 return count;
100 } else {
101 return 0;
102 }
103 }
105 int fread_gzip( void *p, size_t sz, size_t count, FILE *f )
106 {
107 uLongf size = sz*count;
108 uint32_t csize;
109 unsigned char *tmp;
111 fread( &csize, sizeof(csize), 1, f );
112 assert( csize <= (size*2) );
113 tmp = g_malloc0( csize );
114 fread( tmp, csize, 1, f );
115 int status = uncompress( p, &size, tmp, csize );
116 g_free(tmp);
117 if( status == Z_OK ) {
118 return count;
119 } else {
120 fprintf( stderr, "Error reading compressed data\n" );
121 return 0;
122 }
123 }
125 void fwrite_dump( unsigned char *data, unsigned int length, FILE *f )
126 {
127 unsigned int i, j;
128 for( i =0; i<length; i+=16 ) {
129 fprintf( f, "%08X:", i);
130 for( j=i; j<i+16; j++ ) {
131 if( (j % 4) == 0 )
132 fprintf( f, " " );
133 if( j < length )
134 fprintf( f, " %02X", (unsigned int)(data[j]) );
135 else
136 fprintf( f, " " );
137 }
138 fprintf( f, " " );
139 for( j=i; j<i+16 && j<length; j++ ) {
140 fprintf( f, "%c", isprint(data[j]) ? data[j] : '.' );
141 }
142 fprintf( f, "\n" );
143 }
144 }
146 void fwrite_dump32( unsigned int *data, unsigned int length, FILE *f )
147 {
148 fwrite_dump32v( data, length, 8, f );
149 }
151 void fwrite_dump32v( unsigned int *data, unsigned int length, int wordsPerLine, FILE *f )
152 {
153 unsigned int i, j;
154 for( i =0; i<length>>2; i+=wordsPerLine ) {
155 fprintf( f, "%08X:", i);
156 for( j=i; j<i+wordsPerLine; j++ ) {
157 if( j < length )
158 fprintf( f, " %08X", (unsigned int)(data[j]) );
159 else
160 fprintf( f, " " );
161 }
162 fprintf( f, "\n" );
163 }
164 }
166 gboolean write_png_to_stream( FILE *f, frame_buffer_t buffer )
167 {
168 int coltype, i;
169 png_bytep p;
170 png_structp png_ptr = png_create_write_struct(PNG_LIBPNG_VER_STRING, NULL, NULL, NULL);
171 if (!png_ptr) {
172 return FALSE;
173 }
175 png_infop info_ptr = png_create_info_struct(png_ptr);
176 if (!info_ptr) {
177 png_destroy_write_struct(&png_ptr, NULL);
178 return FALSE;
179 }
181 if( setjmp(png_jmpbuf(png_ptr)) ) {
182 png_destroy_write_struct(&png_ptr, &info_ptr);
183 return FALSE;
184 }
185 png_init_io( png_ptr, f );
186 switch( buffer->colour_format ) {
187 case COLFMT_BGR888:
188 coltype = PNG_COLOR_TYPE_RGB;
189 break;
190 case COLFMT_BGRA8888:
191 coltype = PNG_COLOR_TYPE_RGB_ALPHA;
192 break;
193 case COLFMT_BGR0888:
194 coltype = PNG_COLOR_TYPE_RGB;
195 break;
196 default:
197 coltype = PNG_COLOR_TYPE_RGB;
198 }
199 png_set_IHDR(png_ptr, info_ptr, buffer->width, buffer->height,
200 8, coltype, PNG_INTERLACE_NONE,
201 PNG_COMPRESSION_TYPE_DEFAULT,
202 PNG_FILTER_TYPE_DEFAULT );
203 png_write_info(png_ptr, info_ptr);
204 if( buffer->colour_format == COLFMT_BGR0888 ) {
205 png_set_filler(png_ptr, 0, PNG_FILLER_AFTER);
206 }
207 png_set_bgr(png_ptr);
208 if( buffer->inverted ) {
209 p = (png_bytep)(buffer->data + (buffer->height*buffer->rowstride) - buffer->rowstride);
210 for(i=0; i<buffer->height; i++ ) {
211 png_write_row(png_ptr, p);
212 p-=buffer->rowstride;
213 }
214 } else {
215 p = (png_bytep)buffer->data;
216 for(i=0; i<buffer->height; i++ ) {
217 png_write_row(png_ptr, p);
218 p+=buffer->rowstride;
219 }
220 }
221 png_write_end(png_ptr, info_ptr);
222 png_destroy_write_struct(&png_ptr, &info_ptr);
223 return TRUE;
224 }
226 frame_buffer_t read_png_from_stream( FILE *f )
227 {
228 png_bytep p;
229 int i;
230 png_structp png_ptr = png_create_read_struct(PNG_LIBPNG_VER_STRING,
231 NULL, NULL, NULL);
232 if (!png_ptr) {
233 return NULL;
234 }
236 png_infop info_ptr = png_create_info_struct(png_ptr);
237 if (!info_ptr) {
238 png_destroy_read_struct(&png_ptr, NULL, NULL);
239 return NULL;
240 }
242 png_infop end_info = png_create_info_struct(png_ptr);
243 if (!end_info) {
244 png_destroy_read_struct(&png_ptr, &info_ptr, NULL );
245 return NULL;
246 }
248 if( setjmp(png_jmpbuf(png_ptr)) ) {
249 png_destroy_read_struct(&png_ptr, &info_ptr, &end_info);
250 return NULL;
251 }
253 png_init_io(png_ptr, f);
254 png_read_info(png_ptr, info_ptr);
256 png_uint_32 width, height;
257 int bit_depth, color_type, interlace_type,
258 compression_type, filter_method;
259 png_get_IHDR(png_ptr, info_ptr, &width, &height,
260 &bit_depth, &color_type, &interlace_type,
261 &compression_type, &filter_method);
262 assert( interlace_type == PNG_INTERLACE_NONE );
263 int rowbytes = png_get_rowbytes(png_ptr, info_ptr);
264 int channels = png_get_channels(png_ptr, info_ptr);
265 frame_buffer_t buffer = g_malloc( sizeof(struct frame_buffer) + rowbytes*height );
266 buffer->data = (unsigned char *)(buffer+1);
267 buffer->width = width;
268 buffer->height = height;
269 buffer->rowstride = rowbytes;
270 buffer->address = -1;
271 buffer->size = rowbytes*height;
272 buffer->inverted = FALSE;
273 if( channels == 4 ) {
274 buffer->colour_format = COLFMT_BGRA8888;
275 } else if( channels == 3 ) {
276 buffer->colour_format = COLFMT_RGB888;
277 }
279 p = (png_bytep)buffer->data;
280 for( i=0; i<height; i++ ) {
281 png_read_row(png_ptr, p, NULL );
282 p += rowbytes;
283 }
285 png_read_end(png_ptr, end_info);
286 png_destroy_read_struct(&png_ptr, &info_ptr, &end_info);
287 return buffer;
288 }
290 int get_log_level_from_string( const gchar *str )
291 {
292 switch( tolower(str[0]) ) {
293 case 'd': return EMIT_DEBUG;
294 case 'e': return EMIT_ERR;
295 case 'f': return EMIT_FATAL;
296 case 'i': return EMIT_INFO;
297 case 't': return EMIT_TRACE;
298 case 'w': return EMIT_WARN;
299 default: return -1;
300 }
301 }
303 gboolean set_global_log_level( const gchar *str )
304 {
305 int l = get_log_level_from_string(str);
306 if( l == -1 ) {
307 return FALSE;
308 } else {
309 global_msg_level = l;
310 return TRUE;
311 }
312 }
314 void log_message( void *ptr, int level, const gchar *source, const char *msg, ... )
315 {
316 char buf[20];
317 time_t tm = time(NULL);
318 va_list ap;
320 if( level > global_msg_level ) {
321 return; // ignored
322 }
324 va_start(ap, msg);
325 gchar *text = g_strdup_vprintf( msg, ap );
326 va_end(ap);
328 if( level <= EMIT_ERR ) {
329 if( gui_error_dialog( text ) ) {
330 g_free(text);
331 // If we're running, halt on error to avoid potentially flooding
332 // the user with error messages.
333 if( dreamcast_is_running() ) {
334 dreamcast_stop();
335 }
336 return;
337 }
338 }
341 strftime( buf, sizeof(buf), "%H:%M:%S", localtime(&tm) );
342 fprintf( stderr, "%s %08X %-5s %s\n", buf, sh4r.pc, msg_levels[level], text );
343 g_free(text);
344 }
.