diff options
Diffstat (limited to 'progs/tests/texcmp.c')
| -rw-r--r-- | progs/tests/texcmp.c | 24 |
1 files changed, 22 insertions, 2 deletions
diff --git a/progs/tests/texcmp.c b/progs/tests/texcmp.c index fe3f58c..6e822fb 100644 --- a/progs/tests/texcmp.c +++ b/progs/tests/texcmp.c @@ -65,8 +65,10 @@ static const char *TextureName (GLenum TC) return "GL_RGBA_S3TC"; case GL_RGBA4_S3TC: return "GL_RGBA4_S3TC"; + case 0: + return "Invalid format"; default: - return "?"; + return "Unknown format"; } } @@ -356,6 +358,12 @@ static void Key( unsigned char key, int x, int y ) int main( int argc, char *argv[] ) { + float gl_version; + GLint num_formats; + GLint i; + GLint formats[64]; + + glutInit( &argc, argv ); glutInitWindowPosition( 0, 0 ); glutInitWindowSize( 400, 300 ); @@ -367,7 +375,9 @@ int main( int argc, char *argv[] ) exit(0); } - if (!glutExtensionSupported("GL_ARB_texture_compression")) { + gl_version = atof( (const char *) glGetString( GL_VERSION ) ); + if ( (gl_version < 1.3) + && !glutExtensionSupported("GL_ARB_texture_compression") ) { printf("Sorry, GL_ARB_texture_compression not supported\n"); exit(0); } @@ -381,6 +391,16 @@ int main( int argc, char *argv[] ) s3tc = GL_TRUE; } + glGetIntegerv( GL_NUM_COMPRESSED_TEXTURE_FORMATS_ARB, & num_formats ); + + (void) memset( formats, 0, sizeof( formats ) ); + glGetIntegerv( GL_COMPRESSED_TEXTURE_FORMATS_ARB, formats ); + + printf( "The following texture formats are supported:\n" ); + for ( i = 0 ; i < num_formats ; i++ ) { + printf( "\t%s\n", TextureName( formats[i] ) ); + } + Init(); glutReshapeFunc( Reshape ); |