59 lines
1.9 KiB
Python
59 lines
1.9 KiB
Python
import sys
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import os
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import subprocess
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# Compiles all .frag and .vert files in this directory to SPIR-V, MSL, and DXIL binary C character arrays.
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#
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# Requires the SDL_shadercross tool. Binaries can be found here: https://github.com/libsdl-org/SDL_shadercross/actions
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# Click on the latest workflow and download them for the platform of your choice.
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if len(sys.argv) < 2:
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print("Usage: python compile_shaders.py <shadercross_path>")
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sys.exit(1)
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out_file = "ShadersCompiledSPV.h"
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current_dir = os.path.dirname(os.path.realpath(__file__));
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shadercross_path = os.path.realpath(sys.argv[1])
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if not os.path.isfile(shadercross_path):
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print(f"Error: The specified shadercross path '{shadercross_path}' does not exist.")
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sys.exit(1)
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out_path = os.path.join(current_dir, out_file)
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with open(out_path,'w') as result_file:
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result_file.write('// RmlUi SDL GPU shaders compiled using command: \'python compile_shaders.py\'. Do not edit manually.\n\n#include <stdint.h>\n')
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for file in os.listdir(current_dir):
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if file.endswith(".vert") or file.endswith(".frag"):
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shader_path = os.path.join(current_dir, file)
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def compile(target):
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print("Compiling '{}' to '{}' using SDL_shadercross.".format(file, target))
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variable_name = "{}_{}".format(os.path.splitext(file)[0], target)
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temp_path = os.path.join(current_dir, ".temp.{}".format(target))
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print(temp_path)
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subprocess.run([shadercross_path, "-s", "hlsl", shader_path, "-o", temp_path, "-d", target], check = True)
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print("Success, writing output to variable '{}' in {}".format(variable_name, out_file))
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i = 0
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result_file.write('\nalignas(uint32_t) static const unsigned char {}[] = {{'.format(variable_name))
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for b in open(temp_path, 'rb').read():
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if i % 20 == 0:
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result_file.write('\n\t')
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result_file.write('0x%02X,' % b)
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i += 1
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result_file.write('\n};\n')
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os.remove(temp_path)
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compile("spirv")
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compile("msl")
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compile("dxil")
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