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
33 #include "dreamcast.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 )
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() );
52 void install_crash_handler(void)
56 sa.sa_sigaction = report_crash;
57 sigemptyset(&sa.sa_mask);
58 sa.sa_flags = SA_RESETHAND|SA_SIGINFO;
59 sigaction( SIGSEGV, &sa, NULL );
63 void fwrite_string( const char *s, FILE *f )
67 fwrite( &len, sizeof(len), 1, f );
70 fwrite( &len, sizeof(len), 1, f );
71 fwrite( s, len, 1, f );
75 int fread_string( char *s, int maxlen, FILE *f )
78 fread( &len, sizeof(len), 1, f );
80 fread( s, len > maxlen ? maxlen : len, 1, f );
85 void fwrite_gzip( void *p, size_t sz, size_t count, FILE *f )
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 fwrite( tmp, csize, 1, f );
98 int fread_gzip( void *p, size_t sz, size_t count, FILE *f )
100 uLongf size = sz*count;
104 fread( &csize, sizeof(csize), 1, f );
105 assert( csize <= (size*2) );
106 tmp = g_malloc0( csize );
107 fread( tmp, csize, 1, f );
108 int status = uncompress( p, &size, tmp, csize );
110 if( status == Z_OK ) {
113 fprintf( stderr, "Error reading compressed data\n" );
118 void fwrite_dump( unsigned char *data, unsigned int length, FILE *f )
121 for( i =0; i<length; i+=16 ) {
122 fprintf( f, "%08X:", i);
123 for( j=i; j<i+16; j++ ) {
127 fprintf( f, " %02X", (unsigned int)(data[j]) );
132 for( j=i; j<i+16 && j<length; j++ ) {
133 fprintf( f, "%c", isprint(data[j]) ? data[j] : '.' );
139 void fwrite_dump32( unsigned int *data, unsigned int length, FILE *f )
141 fwrite_dump32v( data, length, 8, f );
144 void fwrite_dump32v( unsigned int *data, unsigned int length, int wordsPerLine, FILE *f )
147 for( i =0; i<length>>2; i+=wordsPerLine ) {
148 fprintf( f, "%08X:", i);
149 for( j=i; j<i+wordsPerLine; j++ ) {
151 fprintf( f, " %08X", (unsigned int)(data[j]) );
159 gboolean write_png_to_stream( FILE *f, frame_buffer_t buffer )
163 png_structp png_ptr = png_create_write_struct(PNG_LIBPNG_VER_STRING, NULL, NULL, NULL);
168 png_infop info_ptr = png_create_info_struct(png_ptr);
170 png_destroy_write_struct(&png_ptr, NULL);
174 if( setjmp(png_jmpbuf(png_ptr)) ) {
175 png_destroy_write_struct(&png_ptr, &info_ptr);
178 png_init_io( png_ptr, f );
179 switch( buffer->colour_format ) {
181 coltype = PNG_COLOR_TYPE_RGB;
183 case COLFMT_BGRA8888:
184 coltype = PNG_COLOR_TYPE_RGB_ALPHA;
187 coltype = PNG_COLOR_TYPE_RGB;
190 coltype = PNG_COLOR_TYPE_RGB;
192 png_set_IHDR(png_ptr, info_ptr, buffer->width, buffer->height,
193 8, coltype, PNG_INTERLACE_NONE,
194 PNG_COMPRESSION_TYPE_DEFAULT,
195 PNG_FILTER_TYPE_DEFAULT );
196 png_write_info(png_ptr, info_ptr);
197 if( buffer->colour_format == COLFMT_BGR0888 ) {
198 png_set_filler(png_ptr, 0, PNG_FILLER_AFTER);
200 png_set_bgr(png_ptr);
201 if( buffer->inverted ) {
202 p = (png_bytep)(buffer->data + (buffer->height*buffer->rowstride) - buffer->rowstride);
203 for(i=0; i<buffer->height; i++ ) {
204 png_write_row(png_ptr, p);
205 p-=buffer->rowstride;
208 p = (png_bytep)buffer->data;
209 for(i=0; i<buffer->height; i++ ) {
210 png_write_row(png_ptr, p);
211 p+=buffer->rowstride;
214 png_write_end(png_ptr, info_ptr);
215 png_destroy_write_struct(&png_ptr, &info_ptr);
219 frame_buffer_t read_png_from_stream( FILE *f )
223 png_structp png_ptr = png_create_read_struct(PNG_LIBPNG_VER_STRING,
229 png_infop info_ptr = png_create_info_struct(png_ptr);
231 png_destroy_read_struct(&png_ptr, NULL, NULL);
235 png_infop end_info = png_create_info_struct(png_ptr);
237 png_destroy_read_struct(&png_ptr, &info_ptr, NULL );
241 if( setjmp(png_jmpbuf(png_ptr)) ) {
242 png_destroy_read_struct(&png_ptr, &info_ptr, &end_info);
246 png_init_io(png_ptr, f);
247 png_read_info(png_ptr, info_ptr);
249 png_uint_32 width, height;
250 int bit_depth, color_type, interlace_type,
251 compression_type, filter_method;
252 png_get_IHDR(png_ptr, info_ptr, &width, &height,
253 &bit_depth, &color_type, &interlace_type,
254 &compression_type, &filter_method);
255 assert( interlace_type == PNG_INTERLACE_NONE );
256 int rowbytes = png_get_rowbytes(png_ptr, info_ptr);
257 int channels = png_get_channels(png_ptr, info_ptr);
258 frame_buffer_t buffer = g_malloc( sizeof(struct frame_buffer) + rowbytes*height );
259 buffer->data = (unsigned char *)(buffer+1);
260 buffer->width = width;
261 buffer->height = height;
262 buffer->rowstride = rowbytes;
263 buffer->address = -1;
264 buffer->size = rowbytes*height;
265 buffer->inverted = FALSE;
266 if( channels == 4 ) {
267 buffer->colour_format = COLFMT_BGRA8888;
268 } else if( channels == 3 ) {
269 buffer->colour_format = COLFMT_RGB888;
272 p = (png_bytep)buffer->data;
273 for( i=0; i<height; i++ ) {
274 png_read_row(png_ptr, p, NULL );
278 png_read_end(png_ptr, end_info);
279 png_destroy_read_struct(&png_ptr, &info_ptr, &end_info);
283 int get_log_level_from_string( const gchar *str )
285 switch( tolower(str[0]) ) {
286 case 'd': return EMIT_DEBUG;
287 case 'e': return EMIT_ERR;
288 case 'f': return EMIT_FATAL;
289 case 'i': return EMIT_INFO;
290 case 't': return EMIT_TRACE;
291 case 'w': return EMIT_WARN;
296 gboolean set_global_log_level( const gchar *str )
298 int l = get_log_level_from_string(str);
302 global_msg_level = l;
307 void log_message( void *ptr, int level, const gchar *source, const char *msg, ... )
310 time_t tm = time(NULL);
313 if( level > global_msg_level ) {
318 gchar *text = g_strdup_vprintf( msg, ap );
321 if( level <= EMIT_ERR ) {
322 if( gui_error_dialog( text ) ) {
324 // If we're running, halt on error to avoid potentially flooding
325 // the user with error messages.
326 if( dreamcast_is_running() ) {
334 strftime( buf, sizeof(buf), "%H:%M:%S", localtime(&tm) );
335 fprintf( stderr, "%s %08X %-5s %s\n", buf, sh4r.pc, msg_levels[level], text );
.