Mercurial > sdl-ios-xcode
diff test/automated/platform/platform.c @ 3736:78f544eded7b gsoc2009_unit_tests
Added platform test based ot testplatform.c.
author | Edgar Simo <bobbens@gmail.com> |
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date | Mon, 20 Jul 2009 18:42:55 +0000 |
parents | |
children | e451d5d288e9 |
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--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/test/automated/platform/platform.c Mon Jul 20 18:42:55 2009 +0000 @@ -0,0 +1,145 @@ +/** + * Automated SDL platform test. + * + * Based off of testplatform.c. + * + * Written by Edgar Simo "bobbens" + * + * Released under Public Domain. + */ + + + + +#include "SDL.h" +#include "SDL_at.h" +#include "SDL_endian.h" +#include "SDL_cpuinfo.h" + + +/* + * Prototypes. + */ +static int plat_testSize( size_t sizeoftype, size_t hardcodetype ); +static void plat_testTypes (void); + + +/** + * @brief Test size. + * + * @note Watcom C flags these as Warning 201: "Unreachable code" if you just + * compare them directly, so we push it through a function to keep the + * compiler quiet. --ryan. + */ +static int plat_testSize( size_t sizeoftype, size_t hardcodetype ) +{ + return sizeoftype != hardcodetype; +} + + +/** + * @brief Tests type size. + */ +static void plat_testTypes (void) +{ + int ret; + + SDL_ATbegin( "Type size" ); + + ret = plat_testSize( sizeof(Uint8), 1 ); + if (SDL_ATvassert( ret == 0, "sizeof(Uint8) = %ul instead of 1", sizeof(Uint8) )) + return; + + ret = plat_testSize( sizeof(Uint16), 2 ); + if (SDL_ATvassert( ret == 0, "sizeof(Uint16) = %ul instead of 2", sizeof(Uint16) )) + return; + + ret = plat_testSize( sizeof(Uint32), 4 ); + if (SDL_ATvassert( ret == 0, "sizeof(Uint32) = %ul instead of 4", sizeof(Uint32) )) + return; + +#ifdef SDL_HAS_64BIT_TYPE + ret = plat_testSize( sizeof(Uint64), 8 ); + if (SDL_ATvassert( ret == 0, "sizeof(Uint64) = %ul instead of 8", sizeof(Uint64) )) + return; +#endif /* SDL_HAS_64BIT_TYPE */ + + SDL_ATend(); +} + + +/** + * @brief Tests platform endianness. + */ +static void plat_testEndian (void) +{ + Uint16 value = 0x1234; + int real_byteorder; + Uint16 value16 = 0xCDAB; + Uint16 swapped16 = 0xABCD; + Uint32 value32 = 0xEFBEADDE; + Uint32 swapped32 = 0xDEADBEEF; +#ifdef SDL_HAS_64BIT_TYPE + Uint64 value64, swapped64; + value64 = 0xEFBEADDE; + value64 <<= 32; + value64 |= 0xCDAB3412; + swapped64 = 0x1234ABCD; + swapped64 <<= 32; + swapped64 |= 0xDEADBEEF; +#endif + + SDL_ATbegin( "Endianness" ); + + /* Test endianness. */ + if ((*((char *) &value) >> 4) == 0x1) { + real_byteorder = SDL_BIG_ENDIAN; + } else { + real_byteorder = SDL_LIL_ENDIAN; + } + if (SDL_ATvassert( real_byteorder == SDL_BYTEORDER, + "Machine detected as %s endian but appears to be %s endian.", + (SDL_BYTEORDER == SDL_LIL_ENDIAN) ? "little" : "big", + (real_byteorder == SDL_LIL_ENDIAN) ? "little" : "big" )) + return; + + /* Test 16 swap. */ + if (SDL_ATvassert( SDL_Swap16(value16) == swapped16, + "16 bit swapped incorrectly: 0x%X => 0x%X", + value16, SDL_Swap16(value16) )) + return; + + /* Test 32 swap. */ + if (SDL_ATvassert( SDL_Swap32(value32) == swapped32, + "32 bit swapped incorrectly: 0x%X => 0x%X", + value32, SDL_Swap32(value32) )) + return; + +#ifdef SDL_HAS_64BIT_TYPE + /* Test 64 swap. */ + if (SDL_ATvassert( SDL_Swap64(value64) == swapped64, +#ifdef _MSC_VER + "64 bit swapped incorrectly: 0x%I64X => 0x%I64X", +#else + "64 bit swapped incorrectly: 0x%llX => 0x%llX", +#endif + value64, SDL_Swap64(value64) )) + return; +#endif + + SDL_ATend(); +} + + +int main(int argc, char *argv[]) +{ + (void) argc; + (void) argv; + + SDL_ATinit( "Platform" ); + + plat_testTypes(); + plat_testEndian(); + + return SDL_ATfinish(1); +}