static nir_variable *
read_variable(read_ctx *ctx)
{
nir_variable *var = rzalloc(ctx->nir, nir_variable);
read_add_object(ctx, var);
var->type = decode_type_from_blob(ctx->blob);
bool has_name = blob_read_uint32(ctx->blob);
if (has_name) {
const char *name = blob_read_string(ctx->blob);
var->name = ralloc_strdup(var, name);
} else {
var->name = NULL;
}
blob_copy_bytes(ctx->blob, (uint8_t *) &var->data, sizeof(var->data));
var->num_state_slots = blob_read_uint32(ctx->blob);
var->state_slots = ralloc_array(var, nir_state_slot, var->num_state_slots);
blob_copy_bytes(ctx->blob, (uint8_t *) var->state_slots,
var->num_state_slots * sizeof(nir_state_slot));
bool has_const_initializer = blob_read_uint32(ctx->blob);
if (has_const_initializer)
var->constant_initializer = read_constant(ctx, var);
else
var->constant_initializer = NULL;
bool has_interface_type = blob_read_uint32(ctx->blob);
if (has_interface_type)
var->interface_type = decode_type_from_blob(ctx->blob);
else
var->interface_type = NULL;
var->num_members = blob_read_uint32(ctx->blob);
if (var->num_members > 0) {
var->members = ralloc_array(var, struct nir_variable_data,
var->num_members);
blob_copy_bytes(ctx->blob, (uint8_t *) var->members,
var->num_members * sizeof(*var->members));
}
/* Test at least one call of each blob_write_foo and blob_read_foo function,
* verifying that we read out everything we wrote, that every bytes is
* consumed, and that the overrun bit is not set.
*/
static void
test_write_and_read_functions (void)
{
struct blob blob;
struct blob_reader reader;
ssize_t reserved;
size_t str_offset, uint_offset;
uint8_t reserve_buf[sizeof(reserve_test_str)];
blob_init(&blob);
/*** Test blob by writing one of every possible kind of value. */
blob_write_bytes(&blob, bytes_test_str, sizeof(bytes_test_str));
reserved = blob_reserve_bytes(&blob, sizeof(reserve_test_str));
blob_overwrite_bytes(&blob, reserved, reserve_test_str, sizeof(reserve_test_str));
/* Write a placeholder, (to be replaced later via overwrite_bytes) */
str_offset = blob.size;
blob_write_bytes(&blob, placeholder_str, sizeof(placeholder_str));
blob_write_uint32(&blob, uint32_test);
/* Write a placeholder, (to be replaced later via overwrite_uint32) */
uint_offset = blob.size;
blob_write_uint32(&blob, uint32_placeholder);
blob_write_uint64(&blob, uint64_test);
blob_write_intptr(&blob, (intptr_t) &blob);
blob_write_string(&blob, string_test_str);
/* Finally, overwrite our placeholders. */
blob_overwrite_bytes(&blob, str_offset, overwrite_test_str,
sizeof(overwrite_test_str));
blob_overwrite_uint32(&blob, uint_offset, uint32_overwrite);
/*** Now read each value and verify. */
blob_reader_init(&reader, blob.data, blob.size);
expect_equal_str(bytes_test_str,
blob_read_bytes(&reader, sizeof(bytes_test_str)),
"blob_write/read_bytes");
blob_copy_bytes(&reader, reserve_buf, sizeof(reserve_buf));
expect_equal_str(reserve_test_str, (char *) reserve_buf,
"blob_reserve_bytes/blob_copy_bytes");
expect_equal_str(overwrite_test_str,
blob_read_bytes(&reader, sizeof(overwrite_test_str)),
"blob_overwrite_bytes");
expect_equal(uint32_test, blob_read_uint32(&reader),
"blob_write/read_uint32");
expect_equal(uint32_overwrite, blob_read_uint32(&reader),
"blob_overwrite_uint32");
expect_equal(uint64_test, blob_read_uint64(&reader),
"blob_write/read_uint64");
expect_equal((intptr_t) &blob, blob_read_intptr(&reader),
"blob_write/read_intptr");
expect_equal_str(string_test_str, blob_read_string(&reader),
"blob_write/read_string");
expect_equal(reader.end - reader.data, reader.current - reader.data,
"read_consumes_all_bytes");
expect_equal(false, reader.overrun, "read_does_not_overrun");
blob_finish(&blob);
}
