Added an endian detection and byte swapping test program

libsdl-org · Feb 23, 2004 · 1c27c5a · 1c27c5a
1 parent 8ad9822
commit 1c27c5a
Show file tree

Hide file tree

Showing 3 changed files with 27 additions and 4 deletions.
diff --git a/test/Makefile.am b/test/Makefile.am
@@ -1,7 +1,8 @@
 AUTOMAKE_OPTIONS = no-dependencies
 
 noinst_PROGRAMS = \
-	testver testtypes testcpuinfo testhread testlock testerror testsem testtimer \
+	testver testtypes testendian testcpuinfo \
+	testhread testlock testerror testsem testtimer \
 	loopwave testcdrom testkeys testvidinfo checkkeys testwin graywin \
 	testsprite testbitmap testalpha testgamma testpalette testwm \
 	threadwin testoverlay testoverlay2 testgl testdyngl testjoystick

diff --git a/test/testendian.c b/test/testendian.c
@@ -0,0 +1,25 @@
+
+/* Test program to check SDL's CPU endian detection and byte swapping routines */
+
+#include <stdio.h>
+
+#include "SDL.h"
+#include "SDL_endian.h"
+
+int main(int argc, char *argv[])
+{
+	Uint16 value16 = 0xCDAB;
+	Uint32 value32 = 0xEFBEADDE;
+#if defined(__GNUC__) && defined(SDL_HAS_64BIT_TYPE)
+	Uint64 value64 = 0xEFBEADDECDAB3412LL;
+#endif
+
+	printf("This is a %s endian machine.\n",
+		(SDL_BYTEORDER == SDL_LIL_ENDIAN) ? "little" : "big");
+	printf("Value 16 = 0x%X, swapped = 0x%X\n", value16, SDL_Swap16(value16));
+	printf("Value 32 = 0x%X, swapped = 0x%X\n", value32, SDL_Swap32(value32));
+#if defined(__GNUC__) && defined(SDL_HAS_64BIT_TYPE)
+	printf("Value 64 = 0x%llX, swapped = 0x%llX\n", value64, SDL_Swap64(value64));
+#endif
+	return(0);
+}
diff --git a/test/testver.c b/test/testver.c
@@ -6,7 +6,6 @@
 #include <stdio.h>
 
 #include "SDL.h"
-#include "SDL_byteorder.h"
 
 int main(int argc, char *argv[])
 {
@@ -32,8 +31,6 @@ int main(int argc, char *argv[])
 			SDL_Linked_Version()->major,
 			SDL_Linked_Version()->minor,
 			SDL_Linked_Version()->patch);
-	printf("This is a %s endian machine.\n",
-		(SDL_BYTEORDER == SDL_LIL_ENDIAN) ? "little" : "big");
 	SDL_Quit();
 	return(0);
 }