/**
* Calls all the various one-time-init functions in Mesa.
*
* While holding a global mutex lock, calls several initialization functions,
* and sets the glapi callbacks if the \c MESA_DEBUG environment variable is
* defined.
*
* \sa _math_init().
*/
static void
one_time_init( GLcontext *ctx )
{
static GLboolean alreadyCalled = GL_FALSE;
(void) ctx;
_glthread_LOCK_MUTEX(OneTimeLock);
if (!alreadyCalled) {
GLuint i;
/* do some implementation tests */
assert( sizeof(GLbyte) == 1 );
assert( sizeof(GLubyte) == 1 );
assert( sizeof(GLshort) == 2 );
assert( sizeof(GLushort) == 2 );
assert( sizeof(GLint) == 4 );
assert( sizeof(GLuint) == 4 );
_mesa_get_cpu_features();
_mesa_init_remap_table();
_mesa_init_sqrt_table();
for (i = 0; i < 256; i++) {
_mesa_ubyte_to_float_color_tab[i] = (float) i / 255.0F;
}
if (_mesa_getenv("MESA_DEBUG")) {
_glapi_noop_enable_warnings(GL_TRUE);
_glapi_set_warning_func( (_glapi_warning_func) _mesa_warning );
}
else {
_glapi_noop_enable_warnings(GL_FALSE);
}
#if defined(DEBUG) && defined(__DATE__) && defined(__TIME__)
_mesa_debug(ctx, "Mesa %s DEBUG build %s %s\n",
MESA_VERSION_STRING, __DATE__, __TIME__);
#endif
alreadyCalled = GL_TRUE;
}
_glthread_UNLOCK_MUTEX(OneTimeLock);
dummy_enum_func();
}
const GLubyte*
MesaSoftwareRenderer::_GetString(gl_context* ctx, GLenum name)
{
switch (name) {
case GL_VENDOR:
return (const GLubyte*) "Mesa Project";
case GL_RENDERER: {
_mesa_get_cpu_features();
static char buffer[256] = { '\0' };
if (!buffer[0]) {
char* cpuInfo = _mesa_get_cpu_string();
// Let's build an renderer string
sprintf(buffer, "Software Rasterizer for %s", cpuInfo);
free(cpuInfo);
}
return (const GLubyte*) buffer;
}
default:
// Let core library handle all other cases
return NULL;
}
}
