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Fixed bug #80 Date: 21 Apr 2003 17:20:20 +0100 From: Alan Swanson <swanson@uklinux.net> Subject: [SDL] New XFree 4.3 Video Mode Patch If you look at the unsorted list of modes returned by X, here's mine; 1280 x 1024 @ 85.0 > 1024 x 768 @ 100.3 > USER 800 x 600 @ 125.5 > SET 640 x 480 @ 124.9 > 1280 x 1024 @ 75.0 ] 1280 x 1024 @ 60.0 ] 1280 x 960 @ 85.0 ] X11 1280 x 960 @ 60.0 ] AUTO 1152 x 864 @ 75.0 ]=20 1152 x 768 @ 54.8 ] 960 x 720 @ 120.0 ] ... 640 x 400 @ 85.1 ] 256k 576 x 432 @ 150.0 ] 249k PIXEL 640 x 350 @ 85.1 ] 224k COUNT 576 x 384 @ 109.6 ] 221k ... The user set modes come first followed by X set modes which are ordered by decreasing number of pixels and refresh. The reason why every other library or program not using SDL working is due to SDL scanning the modes in reverse getting X11 provided modes modes with the lowest refresh.
author Sam Lantinga <slouken@libsdl.org>
date Fri, 05 May 2006 05:50:26 +0000
parents b2b476a4a73c
children 14717b52abc0
line wrap: on
line source


/* sanity tests on SDL_rwops.c (usefull for alternative implementations of stdio rwops) */

#include <stdlib.h>

#include "SDL.h"
#include "SDL_endian.h"


#include <stdio.h>	

/* WARNING ! those 2 files will be destroyed by this test program */
#define FBASENAME1	"sdldata1"		/* this file will be created during tests */
#define FBASENAME2	"sdldata2"		/* this file should not exists before starting test */


#ifndef NULL
#define NULL ((void *)0)
#endif 

static void cleanup( void ) {

	unlink(FBASENAME1);
	unlink(FBASENAME2); 
}

static void rwops_error_quit( unsigned line, SDL_RWops *rwops) {
	
	printf("testfile.c(%d): failed\n",line);
	if (rwops) {
		rwops->close(rwops); /* This calls SDL_FreeRW(rwops); */
	}
	cleanup();
	exit(1); /* quit with rwops error (test failed) */
}

#define RWOP_ERR_QUIT(x)	rwops_error_quit( __LINE__, (x) )



int main(int argc, char *argv[])
{
	SDL_RWops *rwops = NULL;
	char test_buf[30];
	
	cleanup();

/* test 1 : basic argument test: all those calls to SDL_RWFromFile should fail */
	
	rwops = SDL_RWFromFile(NULL,NULL);
	if (rwops) RWOP_ERR_QUIT(rwops);
	rwops = SDL_RWFromFile(NULL,"ab+");
	if (rwops) RWOP_ERR_QUIT(rwops);
	rwops = SDL_RWFromFile(NULL,"sldfkjsldkfj");
	if (rwops) RWOP_ERR_QUIT(rwops);
	rwops = SDL_RWFromFile("something","");
	if (rwops) RWOP_ERR_QUIT(rwops);
	rwops = SDL_RWFromFile("something",NULL);
	if (rwops) RWOP_ERR_QUIT(rwops);	
	printf("test1 OK\n");

/* test 2 : check that inexistant file is not successfully opened/created when required */
/* modes : r, r+ implie that file MUST exist 
   modes : a, a+, w, w+ checks that it succeeds (file may not exists)
   
 */
	rwops = SDL_RWFromFile(FBASENAME2,"rb"); /* this file doesn't exist that call must fail */
	if (rwops) RWOP_ERR_QUIT(rwops);
	rwops = SDL_RWFromFile(FBASENAME2,"rb+"); /* this file doesn't exist that call must fail */
	if (rwops) RWOP_ERR_QUIT(rwops);
	rwops = SDL_RWFromFile(FBASENAME2,"wb");
	if (!rwops) RWOP_ERR_QUIT(rwops); 
	rwops->close(rwops); unlink(FBASENAME2);
	rwops = SDL_RWFromFile(FBASENAME2,"wb+");
	if (!rwops) RWOP_ERR_QUIT(rwops); 
	rwops->close(rwops); unlink(FBASENAME2);
	rwops = SDL_RWFromFile(FBASENAME2,"ab"); 
	if (!rwops) RWOP_ERR_QUIT(rwops); 
	rwops->close(rwops); unlink(FBASENAME2);
	rwops = SDL_RWFromFile(FBASENAME2,"ab+");
	if (!rwops) RWOP_ERR_QUIT(rwops); 
	rwops->close(rwops); unlink(FBASENAME2);
	printf("test2 OK\n");

/* test 3 : creation, writing , reading, seeking, 
	        test : w mode, r mode, w+ mode
 */
	rwops = SDL_RWFromFile(FBASENAME1,"wb"); /* write only */	
	if (!rwops)											RWOP_ERR_QUIT(rwops);
	if (1 != rwops->write(rwops,"1234567890",10,1) )	RWOP_ERR_QUIT(rwops);		
	if (10 != rwops->write(rwops,"1234567890",1,10) )	RWOP_ERR_QUIT(rwops);		
	if (7 != rwops->write(rwops,"1234567",1,7) )		RWOP_ERR_QUIT(rwops);		
	if (0!=rwops->seek(rwops,0L,RW_SEEK_SET))			RWOP_ERR_QUIT(rwops);					
	if (0!=rwops->read(rwops,test_buf,1,1))				RWOP_ERR_QUIT(rwops); /* we are in write only mode */
	rwops->close(rwops);

	rwops = SDL_RWFromFile(FBASENAME1,"rb"); /* read mode, file must exists */
	if (!rwops)											RWOP_ERR_QUIT(rwops);
	if (0!=rwops->seek(rwops,0L,RW_SEEK_SET))			RWOP_ERR_QUIT(rwops);					
	if (20!=rwops->seek(rwops,-7,RW_SEEK_END))			RWOP_ERR_QUIT(rwops);					
	if (7!=rwops->read(rwops,test_buf,1,7))				RWOP_ERR_QUIT(rwops);		
	if (SDL_memcmp(test_buf,"1234567",7))				RWOP_ERR_QUIT(rwops);		
	if (0!=rwops->read(rwops,test_buf,1,1))				RWOP_ERR_QUIT(rwops);		
	if (0!=rwops->read(rwops,test_buf,10,100))			RWOP_ERR_QUIT(rwops);		
	if (0!=rwops->seek(rwops,-27,RW_SEEK_CUR))			RWOP_ERR_QUIT(rwops);		
	if (2!=rwops->read(rwops,test_buf,10,3))			RWOP_ERR_QUIT(rwops);				
	if (SDL_memcmp(test_buf,"12345678901234567890",20))	RWOP_ERR_QUIT(rwops);
	if (0!=rwops->write(rwops,test_buf,1,1))			RWOP_ERR_QUIT(rwops); /* readonly mode */
	rwops->close(rwops);

/* test 3: same with w+ mode */
	rwops = SDL_RWFromFile(FBASENAME1,"wb+"); /* write + read + truncation */		
	if (!rwops)											RWOP_ERR_QUIT(rwops);
	if (1 != rwops->write(rwops,"1234567890",10,1) )	RWOP_ERR_QUIT(rwops);		
	if (10 != rwops->write(rwops,"1234567890",1,10) )	RWOP_ERR_QUIT(rwops);		
	if (7 != rwops->write(rwops,"1234567",1,7) )		RWOP_ERR_QUIT(rwops);		
	if (0!=rwops->seek(rwops,0L,RW_SEEK_SET))			RWOP_ERR_QUIT(rwops);					
	if (1!=rwops->read(rwops,test_buf,1,1))				RWOP_ERR_QUIT(rwops); /* we are in read/write mode */
	if (0!=rwops->seek(rwops,0L,RW_SEEK_SET))			RWOP_ERR_QUIT(rwops);					
	if (20!=rwops->seek(rwops,-7,RW_SEEK_END))			RWOP_ERR_QUIT(rwops);					
	if (7!=rwops->read(rwops,test_buf,1,7))				RWOP_ERR_QUIT(rwops);		
	if (SDL_memcmp(test_buf,"1234567",7))				RWOP_ERR_QUIT(rwops);		
	if (0!=rwops->read(rwops,test_buf,1,1))				RWOP_ERR_QUIT(rwops);		
	if (0!=rwops->read(rwops,test_buf,10,100))			RWOP_ERR_QUIT(rwops);		
	if (0!=rwops->seek(rwops,-27,RW_SEEK_CUR))			RWOP_ERR_QUIT(rwops);		
	if (2!=rwops->read(rwops,test_buf,10,3))			RWOP_ERR_QUIT(rwops);				
	if (SDL_memcmp(test_buf,"12345678901234567890",20))	RWOP_ERR_QUIT(rwops);
	rwops->close(rwops);
	printf("test3 OK\n");

/* test 4: same in r+ mode */
	rwops = SDL_RWFromFile(FBASENAME1,"rb+"); /* write + read + file must exists, no truncation */		
	if (!rwops)											RWOP_ERR_QUIT(rwops);
	if (1 != rwops->write(rwops,"1234567890",10,1) )	RWOP_ERR_QUIT(rwops);		
	if (10 != rwops->write(rwops,"1234567890",1,10) )	RWOP_ERR_QUIT(rwops);		
	if (7 != rwops->write(rwops,"1234567",1,7) )		RWOP_ERR_QUIT(rwops);		
	if (0!=rwops->seek(rwops,0L,RW_SEEK_SET))			RWOP_ERR_QUIT(rwops);					
	if (1!=rwops->read(rwops,test_buf,1,1))				RWOP_ERR_QUIT(rwops); /* we are in read/write mode */
	if (0!=rwops->seek(rwops,0L,RW_SEEK_SET))			RWOP_ERR_QUIT(rwops);					
	if (20!=rwops->seek(rwops,-7,RW_SEEK_END))			RWOP_ERR_QUIT(rwops);					
	if (7!=rwops->read(rwops,test_buf,1,7))				RWOP_ERR_QUIT(rwops);		
	if (SDL_memcmp(test_buf,"1234567",7))				RWOP_ERR_QUIT(rwops);		
	if (0!=rwops->read(rwops,test_buf,1,1))				RWOP_ERR_QUIT(rwops);		
	if (0!=rwops->read(rwops,test_buf,10,100))			RWOP_ERR_QUIT(rwops);		
	if (0!=rwops->seek(rwops,-27,RW_SEEK_CUR))			RWOP_ERR_QUIT(rwops);		
	if (2!=rwops->read(rwops,test_buf,10,3))			RWOP_ERR_QUIT(rwops);				
	if (SDL_memcmp(test_buf,"12345678901234567890",20))	RWOP_ERR_QUIT(rwops);
	rwops->close(rwops);
	printf("test4 OK\n");

/* test5 : append mode */
	rwops = SDL_RWFromFile(FBASENAME1,"ab+"); /* write + read + append */		
	if (!rwops)											RWOP_ERR_QUIT(rwops);
	if (1 != rwops->write(rwops,"1234567890",10,1) )	RWOP_ERR_QUIT(rwops);		
	if (10 != rwops->write(rwops,"1234567890",1,10) )	RWOP_ERR_QUIT(rwops);		
	if (7 != rwops->write(rwops,"1234567",1,7) )		RWOP_ERR_QUIT(rwops); 	
	if (0!=rwops->seek(rwops,0L,RW_SEEK_SET))			RWOP_ERR_QUIT(rwops);					
	
	if (1!=rwops->read(rwops,test_buf,1,1))				RWOP_ERR_QUIT(rwops); 
	if (0!=rwops->seek(rwops,0L,RW_SEEK_SET))			RWOP_ERR_QUIT(rwops);					
	
	if (20+27!=rwops->seek(rwops,-7,RW_SEEK_END))		RWOP_ERR_QUIT(rwops);					
	if (7!=rwops->read(rwops,test_buf,1,7))				RWOP_ERR_QUIT(rwops);		
	if (SDL_memcmp(test_buf,"1234567",7))				RWOP_ERR_QUIT(rwops);		
	if (0!=rwops->read(rwops,test_buf,1,1))				RWOP_ERR_QUIT(rwops);		
	if (0!=rwops->read(rwops,test_buf,10,100))			RWOP_ERR_QUIT(rwops);		
	
	if (27!=rwops->seek(rwops,-27,RW_SEEK_CUR))			RWOP_ERR_QUIT(rwops);
	
	if (0!=rwops->seek(rwops,0L,RW_SEEK_SET))			RWOP_ERR_QUIT(rwops);
	if (3!=rwops->read(rwops,test_buf,10,3))			RWOP_ERR_QUIT(rwops);				
	if (SDL_memcmp(test_buf,"123456789012345678901234567123",30))	
														RWOP_ERR_QUIT(rwops);
	rwops->close(rwops);
	printf("test5 OK\n");
	cleanup();
	return 0; /* all ok */
}