static CoglBool
validate_statements_for_context (CoglBlendStringStatement *statements,
int n_statements,
CoglBlendStringContext context,
CoglError **error)
{
const char *error_string;
if (n_statements == 1)
{
if (statements[0].mask == COGL_BLEND_STRING_CHANNEL_MASK_ALPHA)
{
error_string = "You need to also give a blend statement for the RGB"
"channels";
goto error;
}
else if (statements[0].mask == COGL_BLEND_STRING_CHANNEL_MASK_RGB)
{
error_string = "You need to also give a blend statement for the "
"Alpha channel";
goto error;
}
}
if (context == COGL_BLEND_STRING_CONTEXT_BLENDING)
return validate_blend_statements (statements, n_statements, error);
else
return validate_tex_combine_statements (statements, n_statements, error);
error:
_cogl_set_error (error,
COGL_BLEND_STRING_ERROR,
COGL_BLEND_STRING_ERROR_INVALID_ERROR,
"Invalid %s string: %s",
context == COGL_BLEND_STRING_CONTEXT_BLENDING ?
"blend" : "texture combine",
error_string);
if (COGL_DEBUG_ENABLED (COGL_DEBUG_BLEND_STRINGS))
{
g_debug ("Invalid %s string: %s",
context == COGL_BLEND_STRING_CONTEXT_BLENDING ?
"blend" : "texture combine",
error_string);
}
return FALSE;
}
static bool
validate_statements(cg_device_t *dev,
cg_blend_string_statement_t *statements,
int n_statements,
cg_error_t **error)
{
const char *error_string;
if (n_statements == 1) {
if (statements[0].mask == CG_BLEND_STRING_CHANNEL_MASK_ALPHA) {
error_string =
"You need to also give a blend statement for the RGB "
"channels";
goto error;
} else if (statements[0].mask == CG_BLEND_STRING_CHANNEL_MASK_RGB) {
error_string = "You need to also give a blend statement for the "
"Alpha channel";
goto error;
}
}
return validate_blend_statements(dev, statements, n_statements,
error);
error:
_cg_set_error(error,
CG_BLEND_STRING_ERROR,
CG_BLEND_STRING_ERROR_INVALID_ERROR,
"Invalid blend string: %s",
error_string);
if (CG_DEBUG_ENABLED(CG_DEBUG_BLEND_STRINGS))
c_debug("Invalid blend string: %s", error_string);
return false;
}
