/**
* Initialize a criteria config from the given attribute list.
* Return EGL_FALSE if any of the attribute is invalid.
*/
EGLBoolean
_eglParseConfigAttribList(_EGLConfig *conf, _EGLDisplay *dpy,
const EGLint *attrib_list)
{
EGLint attr, val, i;
_eglInitConfig(conf, dpy, EGL_DONT_CARE);
/* reset to default values */
for (i = 0; i < ARRAY_SIZE(_eglValidationTable); i++) {
attr = _eglValidationTable[i].attr;
val = _eglValidationTable[i].default_value;
_eglSetConfigKey(conf, attr, val);
}
/* parse the list */
for (i = 0; attrib_list && attrib_list[i] != EGL_NONE; i += 2) {
attr = attrib_list[i];
val = attrib_list[i + 1];
if (!_eglIsConfigAttribValid(conf, attr))
return EGL_FALSE;
_eglSetConfigKey(conf, attr, val);
}
if (!_eglValidateConfig(conf, EGL_TRUE))
return EGL_FALSE;
/* EGL_LEVEL and EGL_MATCH_NATIVE_PIXMAP cannot be EGL_DONT_CARE */
if (conf->Level == EGL_DONT_CARE ||
conf->MatchNativePixmap == EGL_DONT_CARE)
return EGL_FALSE;
/* ignore other attributes when EGL_CONFIG_ID is given */
if (conf->ConfigID != EGL_DONT_CARE) {
for (i = 0; i < ARRAY_SIZE(_eglValidationTable); i++) {
attr = _eglValidationTable[i].attr;
if (attr != EGL_CONFIG_ID)
_eglSetConfigKey(conf, attr, EGL_DONT_CARE);
}
}
else {
if (!(conf->SurfaceType & EGL_WINDOW_BIT))
conf->NativeVisualType = EGL_DONT_CARE;
if (conf->TransparentType == EGL_NONE) {
conf->TransparentRedValue = EGL_DONT_CARE;
conf->TransparentGreenValue = EGL_DONT_CARE;
conf->TransparentBlueValue = EGL_DONT_CARE;
}
}
return EGL_TRUE;
}
/**
* Fallback for eglGetConfigAttrib.
*/
EGLBoolean
_eglGetConfigAttrib(_EGLDriver *drv, _EGLDisplay *dpy, _EGLConfig *conf,
EGLint attribute, EGLint *value)
{
if (!_eglIsConfigAttribValid(conf, attribute))
return _eglError(EGL_BAD_ATTRIBUTE, "eglGetConfigAttrib");
if (!value)
return _eglError(EGL_BAD_PARAMETER, "eglGetConfigAttrib");
*value = GET_CONFIG_ATTRIB(conf, attribute);
return EGL_TRUE;
}
/**
* Fallback for eglGetConfigAttrib.
*/
EGLBoolean
_eglGetConfigAttrib(_EGLDriver *drv, _EGLDisplay *dpy, _EGLConfig *conf,
EGLint attribute, EGLint *value)
{
if (!_eglIsConfigAttribValid(conf, attribute))
return _eglError(EGL_BAD_ATTRIBUTE, "eglGetConfigAttrib");
/* nonqueryable attributes */
switch (attribute) {
case EGL_MATCH_NATIVE_PIXMAP:
return _eglError(EGL_BAD_ATTRIBUTE, "eglGetConfigAttrib");
break;
default:
break;
}
if (!value)
return _eglError(EGL_BAD_PARAMETER, "eglGetConfigAttrib");
*value = _eglGetConfigKey(conf, attribute);
return EGL_TRUE;
}