pebble/tools/resources/waftools/generate_builtin.py

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# Copyright 2024 Google LLC
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
from waflib import Node, Task, TaskGen
from resources.types.resource_ball import ResourceBall
from resources.types.resource_definition import StorageType
import generate_c_byte_array
class generate_builtin(Task.Task):
def run(self):
resource_ball = ResourceBall.load(self.inputs[0].abspath())
resource_objects = [reso for reso in resource_ball.resource_objects
if reso.definition.storage == StorageType.builtin]
with open(self.outputs[0].abspath(), 'w') as f:
fw_bld_node = self.generator.bld.bldnode.find_node('src/fw')
f.write('#include "{}"\n'.format(self.resource_id_header.path_from(fw_bld_node)))
f.write('#include "resource/resource_storage.h"\n')
f.write('#include "resource/resource_storage_builtin.h"\n\n')
def var_name(reso):
return "{}_builtin_bytes".format(reso.definition.name)
# Write the blobs of data:
for reso in resource_objects:
# some resources require 8-byte aligned addresses
# to simplify the handling we align all resources
f.write('__attribute__ ((aligned (8)))\n')
generate_c_byte_array.write(f, reso.data, var_name(reso))
f.write("\n")
f.write("const uint32_t g_num_builtin_resources = {};\n".format(len(resource_objects)))
f.write("const BuiltInResourceData g_builtin_resources[] = {\n")
for reso in resource_objects:
f.write(' {{ RESOURCE_ID_{resource_id}, {var_name}, sizeof({var_name}) }},\n'
.format(resource_id=reso.definition.name,
var_name=var_name(reso)))
f.write("};\n")
@TaskGen.feature('generate_builtin')
@TaskGen.before_method('process_source', 'process_rule')
def process_generate_builtin(self):
task = self.create_task('generate_builtin',
self.resource_ball,
self.builtin_target)
task.resource_id_header = self.resource_id_header