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 );
46 // Get gdb to print a nice backtrace for us
47 snprintf( buf, 128, "gdb -batch -f --quiet --pid=%d -ex bt", getpid() );
53 void install_crash_handler(void)
57 sa.sa_sigaction = report_crash;
58 sigemptyset(&sa.sa_mask);
59 sa.sa_flags = SA_RESETHAND|SA_SIGINFO;
60 sigaction( SIGSEGV, &sa, NULL );
61 sigaction( SIGILL, &sa, NULL );
62 sigaction( SIGBUS, &sa, NULL );
66 void fwrite_string( const char *s, FILE *f )
70 fwrite( &len, sizeof(len), 1, f );
73 fwrite( &len, sizeof(len), 1, f );
74 fwrite( s, len, 1, f );
78 int fread_string( char *s, int maxlen, FILE *f )
81 fread( &len, sizeof(len), 1, f );
83 fread( s, len > maxlen ? maxlen : len, 1, f );
88 int fwrite_gzip( void *p, size_t sz, size_t count, FILE *f )
90 uLongf size = sz*count;
91 uLongf csize = ((int)(size*1.001))+13;
92 unsigned char *tmp = g_malloc0( csize );
93 int status = compress( tmp, &csize, p, size );
94 assert( status == Z_OK );
95 uint32_t wsize = (uint32_t)csize;
96 fwrite( &wsize, sizeof(wsize), 1, f );
97 int written = fwrite( tmp, csize, 1, f );
100 /* Could be finer-grained, but this is enough to know it succeeded/failed */
108 int fread_gzip( void *p, size_t sz, size_t count, FILE *f )
110 uLongf size = sz*count;
114 fread( &csize, sizeof(csize), 1, f );
115 assert( csize <= (size*2) );
116 tmp = g_malloc0( csize );
117 fread( tmp, csize, 1, f );
118 int status = uncompress( p, &size, tmp, csize );
120 if( status == Z_OK ) {
123 fprintf( stderr, "Error reading compressed data\n" );
128 void fwrite_dump( unsigned char *data, unsigned int length, FILE *f )
131 for( i =0; i<length; i+=16 ) {
132 fprintf( f, "%08X:", i);
133 for( j=i; j<i+16; j++ ) {
137 fprintf( f, " %02X", (unsigned int)(data[j]) );
142 for( j=i; j<i+16 && j<length; j++ ) {
143 fprintf( f, "%c", isprint(data[j]) ? data[j] : '.' );
149 void fwrite_dump32( unsigned int *data, unsigned int length, FILE *f )
151 fwrite_dump32v( data, length, 8, f );
154 void fwrite_dump32v( unsigned int *data, unsigned int length, int wordsPerLine, FILE *f )
157 for( i =0; i<length>>2; i+=wordsPerLine ) {
158 fprintf( f, "%08X:", i);
159 for( j=i; j<i+wordsPerLine; j++ ) {
161 fprintf( f, " %08X", (unsigned int)(data[j]) );
169 gboolean write_png_to_stream( FILE *f, frame_buffer_t buffer )
173 png_structp png_ptr = png_create_write_struct(PNG_LIBPNG_VER_STRING, NULL, NULL, NULL);
178 png_infop info_ptr = png_create_info_struct(png_ptr);
180 png_destroy_write_struct(&png_ptr, NULL);
184 if( setjmp(png_jmpbuf(png_ptr)) ) {
185 png_destroy_write_struct(&png_ptr, &info_ptr);
188 png_init_io( png_ptr, f );
189 switch( buffer->colour_format ) {
191 coltype = PNG_COLOR_TYPE_RGB;
193 case COLFMT_BGRA8888:
194 coltype = PNG_COLOR_TYPE_RGB_ALPHA;
197 coltype = PNG_COLOR_TYPE_RGB;
200 coltype = PNG_COLOR_TYPE_RGB;
202 png_set_IHDR(png_ptr, info_ptr, buffer->width, buffer->height,
203 8, coltype, PNG_INTERLACE_NONE,
204 PNG_COMPRESSION_TYPE_DEFAULT,
205 PNG_FILTER_TYPE_DEFAULT );
206 png_write_info(png_ptr, info_ptr);
207 if( buffer->colour_format == COLFMT_BGR0888 ) {
208 png_set_filler(png_ptr, 0, PNG_FILLER_AFTER);
210 png_set_bgr(png_ptr);
211 if( buffer->inverted ) {
212 p = (png_bytep)(buffer->data + (buffer->height*buffer->rowstride) - buffer->rowstride);
213 for(i=0; i<buffer->height; i++ ) {
214 png_write_row(png_ptr, p);
215 p-=buffer->rowstride;
218 p = (png_bytep)buffer->data;
219 for(i=0; i<buffer->height; i++ ) {
220 png_write_row(png_ptr, p);
221 p+=buffer->rowstride;
224 png_write_end(png_ptr, info_ptr);
225 png_destroy_write_struct(&png_ptr, &info_ptr);
229 frame_buffer_t read_png_from_stream( FILE *f )
233 png_structp png_ptr = png_create_read_struct(PNG_LIBPNG_VER_STRING,
239 png_infop info_ptr = png_create_info_struct(png_ptr);
241 png_destroy_read_struct(&png_ptr, NULL, NULL);
245 png_infop end_info = png_create_info_struct(png_ptr);
247 png_destroy_read_struct(&png_ptr, &info_ptr, NULL );
251 if( setjmp(png_jmpbuf(png_ptr)) ) {
252 png_destroy_read_struct(&png_ptr, &info_ptr, &end_info);
256 png_init_io(png_ptr, f);
257 png_read_info(png_ptr, info_ptr);
259 png_uint_32 width, height;
260 int bit_depth, color_type, interlace_type,
261 compression_type, filter_method;
262 png_get_IHDR(png_ptr, info_ptr, &width, &height,
263 &bit_depth, &color_type, &interlace_type,
264 &compression_type, &filter_method);
265 assert( interlace_type == PNG_INTERLACE_NONE );
266 int rowbytes = png_get_rowbytes(png_ptr, info_ptr);
267 int channels = png_get_channels(png_ptr, info_ptr);
268 frame_buffer_t buffer = g_malloc( sizeof(struct frame_buffer) + rowbytes*height );
269 buffer->data = (unsigned char *)(buffer+1);
270 buffer->width = width;
271 buffer->height = height;
272 buffer->rowstride = rowbytes;
273 buffer->address = -1;
274 buffer->size = rowbytes*height;
275 buffer->inverted = FALSE;
276 if( channels == 4 ) {
277 buffer->colour_format = COLFMT_BGRA8888;
278 } else if( channels == 3 ) {
279 buffer->colour_format = COLFMT_RGB888;
282 p = (png_bytep)buffer->data;
283 for( i=0; i<height; i++ ) {
284 png_read_row(png_ptr, p, NULL );
288 png_read_end(png_ptr, end_info);
289 png_destroy_read_struct(&png_ptr, &info_ptr, &end_info);
293 int get_log_level_from_string( const gchar *str )
295 switch( tolower(str[0]) ) {
296 case 'd': return EMIT_DEBUG;
297 case 'e': return EMIT_ERR;
298 case 'f': return EMIT_FATAL;
299 case 'i': return EMIT_INFO;
300 case 't': return EMIT_TRACE;
301 case 'w': return EMIT_WARN;
306 gboolean set_global_log_level( const gchar *str )
308 int l = get_log_level_from_string(str);
312 global_msg_level = l;
317 void log_message( void *ptr, int level, const gchar *source, const char *msg, ... )
320 time_t tm = time(NULL);
323 if( level > global_msg_level ) {
328 gchar *text = g_strdup_vprintf( msg, ap );
331 if( level <= EMIT_ERR ) {
332 if( gui_error_dialog( text ) ) {
334 // If we're running, halt on error to avoid potentially flooding
335 // the user with error messages.
336 if( dreamcast_is_running() ) {
344 strftime( buf, sizeof(buf), "%H:%M:%S", localtime(&tm) );
345 fprintf( stderr, "%s %08X %-5s %s\n", buf, sh4r.pc, msg_levels[level], text );
.