Files
kompute/scripts/convert_shaders.py
2020-08-23 10:56:14 +01:00

98 lines
2.7 KiB
Python

"""
Script to handle conversion of compute shaders to spirv and to headers
"""
import os
import logging
import click
import sh
logger = logging.getLogger(__name__)
logger.addHandler(logging.StreamHandler())
@click.command()
@click.option(
"--shader-path",
"-p",
envvar="KOMPUTE_SHADER_PATH",
required=True,
help="The path for the directory to build and convert shaders",
)
@click.option(
"--shader-binary",
"-s",
envvar="KOMPUTE_SHADER_BINARY",
required=True,
help="The path for the directory to build and convert shaders",
)
@click.option(
"--header-path",
"-c",
envvar="KOMPUTE_HEADER_PATH",
default="",
required=False,
help="The (optional) output file for the cpp header files",
)
@click.option(
"--verbose",
"-v",
envvar="KOMPUTE_HEADER_PATH",
default=False,
is_flag=True,
help="Enable versbosity if flag is provided",
)
def run_cli(
shader_path: str = None,
shader_binary: str = None,
header_path: bool = None,
verbose: bool = None,
):
"""
CLI function for shader generation
"""
if verbose:
logger.setLevel(logging.DEBUG)
else:
logger.setLevel(logging.WARNING)
logger.debug(f"Starting script with variables: {locals()}")
shader_files = []
for root, directory, files in os.walk(shader_path):
for file in files:
if file.endswith(".comp"):
shader_files.append(os.path.join(root, file))
shader_cmd = sh.Command(shader_binary)
logger.debug(f"Output spirv path: {shader_path}")
logger.debug(f"Converting files to spirv: {shader_files}")
spirv_files = []
for file in shader_files:
logger.debug(f"Converting to spirv: {file}")
spirv_file = f"{file}.spv"
shader_cmd("-V", file, "-o", spirv_file)
spirv_files.append(spirv_file)
# Create cpp files if header_path provided
if header_path:
logger.debug(f"Header path provided. Converting bin files to hpp.")
logger.debug(f"Output header path: {shader_path}")
for file in spirv_files:
header_data = str(sh.xxd("-i", file))
file_name = file.split("/")[-1]
header_file = file_name.replace(".comp.spv", ".hpp")
logger.debug(f"Converting to hpp: {file_name}")
with open(os.path.join(header_path, header_file), "w+") as fstream:
fstream.write("#pragma once\n\n")
fstream.write("namespace kp {\n")
fstream.write("namespace shader_data {\n")
fstream.write(header_data)
fstream.write("}\n")
fstream.write("}\n")
if __name__ == "__main__":
run_cli()