4 * Miscellaneous utility functions.
6 * Copyright (c) 2005 Nathan Keynes.
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.
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.
19 #define HAVE_EXECINFO_H 1
36 char *msg_levels[] = { "FATAL", "ERROR", "WARN", "INFO", "DEBUG", "TRACE" };
37 int global_msg_level = EMIT_WARN;
39 static void report_crash( int signo, siginfo_t *info, void *ptr )
43 fprintf( stderr, "--- Aborting with signal %d ---\n", signo );
44 // Get gdb to print a nice backtrace for us
45 snprintf( buf, 128, "gdb -batch -f --quiet --pid=%d -ex bt", getpid() );
51 void install_crash_handler(void)
55 sa.sa_sigaction = report_crash;
56 sigemptyset(&sa.sa_mask);
57 sa.sa_flags = SA_RESETHAND|SA_SIGINFO;
58 sigaction( SIGSEGV, &sa, NULL );
62 void fwrite_string( const char *s, FILE *f )
66 fwrite( &len, sizeof(len), 1, f );
69 fwrite( &len, sizeof(len), 1, f );
70 fwrite( s, len, 1, f );
74 int fread_string( char *s, int maxlen, FILE *f )
77 fread( &len, sizeof(len), 1, f );
79 fread( s, len > maxlen ? maxlen : len, 1, f );
84 void fwrite_gzip( void *p, size_t sz, size_t count, FILE *f )
86 uLongf size = sz*count;
87 uLongf csize = ((int)(size*1.001))+13;
88 unsigned char *tmp = g_malloc0( csize );
89 int status = compress( tmp, &csize, p, size );
90 assert( status == Z_OK );
91 uint32_t wsize = (uint32_t)csize;
92 fwrite( &wsize, sizeof(wsize), 1, f );
93 fwrite( tmp, csize, 1, f );
97 int fread_gzip( void *p, size_t sz, size_t count, FILE *f )
99 uLongf size = sz*count;
103 fread( &csize, sizeof(csize), 1, f );
104 assert( csize <= (size*2) );
105 tmp = g_malloc0( csize );
106 fread( tmp, csize, 1, f );
107 int status = uncompress( p, &size, tmp, csize );
109 if( status == Z_OK ) {
112 fprintf( stderr, "Error reading compressed data\n" );
117 void fwrite_dump( unsigned char *data, unsigned int length, FILE *f )
120 for( i =0; i<length; i+=16 ) {
121 fprintf( f, "%08X:", i);
122 for( j=i; j<i+16; j++ ) {
126 fprintf( f, " %02X", (unsigned int)(data[j]) );
131 for( j=i; j<i+16 && j<length; j++ ) {
132 fprintf( f, "%c", isprint(data[j]) ? data[j] : '.' );
138 void fwrite_dump32( unsigned int *data, unsigned int length, FILE *f )
140 fwrite_dump32v( data, length, 8, f );
143 void fwrite_dump32v( unsigned int *data, unsigned int length, int wordsPerLine, FILE *f )
146 for( i =0; i<length>>2; i+=wordsPerLine ) {
147 fprintf( f, "%08X:", i);
148 for( j=i; j<i+wordsPerLine; j++ ) {
150 fprintf( f, " %08X", (unsigned int)(data[j]) );
158 gboolean write_png_to_stream( FILE *f, frame_buffer_t buffer )
162 png_structp png_ptr = png_create_write_struct(PNG_LIBPNG_VER_STRING, NULL, NULL, NULL);
167 png_infop info_ptr = png_create_info_struct(png_ptr);
169 png_destroy_write_struct(&png_ptr, NULL);
173 if( setjmp(png_jmpbuf(png_ptr)) ) {
174 png_destroy_write_struct(&png_ptr, &info_ptr);
177 png_init_io( png_ptr, f );
178 switch( buffer->colour_format ) {
180 coltype = PNG_COLOR_TYPE_RGB;
182 case COLFMT_BGRA8888:
183 coltype = PNG_COLOR_TYPE_RGB_ALPHA;
186 coltype = PNG_COLOR_TYPE_RGB;
189 coltype = PNG_COLOR_TYPE_RGB;
191 png_set_IHDR(png_ptr, info_ptr, buffer->width, buffer->height,
192 8, coltype, PNG_INTERLACE_NONE,
193 PNG_COMPRESSION_TYPE_DEFAULT,
194 PNG_FILTER_TYPE_DEFAULT );
195 png_write_info(png_ptr, info_ptr);
196 if( buffer->colour_format == COLFMT_BGR0888 ) {
197 png_set_filler(png_ptr, 0, PNG_FILLER_AFTER);
199 png_set_bgr(png_ptr);
200 if( buffer->inverted ) {
201 p = (png_bytep)(buffer->data + (buffer->height*buffer->rowstride) - buffer->rowstride);
202 for(i=0; i<buffer->height; i++ ) {
203 png_write_row(png_ptr, p);
204 p-=buffer->rowstride;
207 p = (png_bytep)buffer->data;
208 for(i=0; i<buffer->height; i++ ) {
209 png_write_row(png_ptr, p);
210 p+=buffer->rowstride;
213 png_write_end(png_ptr, info_ptr);
214 png_destroy_write_struct(&png_ptr, &info_ptr);
218 frame_buffer_t read_png_from_stream( FILE *f )
222 png_structp png_ptr = png_create_read_struct(PNG_LIBPNG_VER_STRING,
228 png_infop info_ptr = png_create_info_struct(png_ptr);
230 png_destroy_read_struct(&png_ptr, NULL, NULL);
234 png_infop end_info = png_create_info_struct(png_ptr);
236 png_destroy_read_struct(&png_ptr, &info_ptr, NULL );
240 if( setjmp(png_jmpbuf(png_ptr)) ) {
241 png_destroy_read_struct(&png_ptr, &info_ptr, &end_info);
245 png_init_io(png_ptr, f);
246 png_read_info(png_ptr, info_ptr);
248 png_uint_32 width, height;
249 int bit_depth, color_type, interlace_type,
250 compression_type, filter_method;
251 png_get_IHDR(png_ptr, info_ptr, &width, &height,
252 &bit_depth, &color_type, &interlace_type,
253 &compression_type, &filter_method);
254 assert( interlace_type == PNG_INTERLACE_NONE );
255 int rowbytes = png_get_rowbytes(png_ptr, info_ptr);
256 int channels = png_get_channels(png_ptr, info_ptr);
257 frame_buffer_t buffer = g_malloc( sizeof(struct frame_buffer) + rowbytes*height );
258 buffer->data = (unsigned char *)(buffer+1);
259 buffer->width = width;
260 buffer->height = height;
261 buffer->rowstride = rowbytes;
262 buffer->address = -1;
263 buffer->size = rowbytes*height;
264 buffer->inverted = FALSE;
265 if( channels == 4 ) {
266 buffer->colour_format = COLFMT_BGRA8888;
267 } else if( channels == 3 ) {
268 buffer->colour_format = COLFMT_RGB888;
271 p = (png_bytep)buffer->data;
272 for( i=0; i<height; i++ ) {
273 png_read_row(png_ptr, p, NULL );
277 png_read_end(png_ptr, end_info);
278 png_destroy_read_struct(&png_ptr, &info_ptr, &end_info);
282 int get_log_level_from_string( const gchar *str )
284 switch( tolower(str[0]) ) {
285 case 'd': return EMIT_DEBUG;
286 case 'e': return EMIT_ERR;
287 case 'f': return EMIT_FATAL;
288 case 'i': return EMIT_INFO;
289 case 't': return EMIT_TRACE;
290 case 'w': return EMIT_WARN;
295 gboolean set_global_log_level( const gchar *str )
297 int l = get_log_level_from_string(str);
301 global_msg_level = l;
306 void log_message( void *ptr, int level, const gchar *source, const char *msg, ... )
309 time_t tm = time(NULL);
312 if( level > global_msg_level ) {
317 gchar *text = g_strdup_vprintf( msg, ap );
320 if( level <= EMIT_ERR ) {
321 if( gui_error_dialog( text ) ) {
328 strftime( buf, sizeof(buf), "%H:%M:%S", localtime(&tm) );
329 fprintf( stderr, "%s %08X %-5s %s\n", buf, sh4r.pc, msg_levels[level], text );
.