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This extension introduces a more robust way of creating an XrSession for OpenGL. It also lays the groundwork for future OpenGL ES support. https://github.com/KhronosGroup/OpenXR-Docs/pull/40 Signed-off-by: Simon Ser <contact@emersion.fr> Signed-off-by: Drew DeVault <sir@cmpwn.com>
88 lines
2.6 KiB
Python
Executable file
88 lines
2.6 KiB
Python
Executable file
#!/usr/bin/env python3
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# Copyright 2019, Collabora, Ltd.
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# SPDX-License-Identifier: BSL-1.0
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"""Simple script to update oxr_extension_support.h."""
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from pathlib import Path
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# Each extension that we implement gets an entry in this tuple.
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# Each entry should be a list of defines that are checked for an extension:
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# the first one must be the name of the extension itself.
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# Keep sorted.
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EXTENSIONS = (
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['XR_EXT_debug_utils'],
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['XR_KHR_convert_timespec_time', 'XR_USE_TIMESPEC'],
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['XR_KHR_opengl_enable', 'XR_USE_GRAPHICS_API_OPENGL'],
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['XR_KHR_vulkan_enable', 'XR_USE_GRAPHICS_API_VULKAN'],
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['XR_MND_egl_enable', 'XR_USE_PLATFORM_EGL'],
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['XR_MND_headless'],
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)
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ROOT = Path(__file__).resolve().parent.parent
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FN = ROOT / 'src' / 'xrt'/'state_trackers' / 'oxr' / 'oxr_extension_support.h'
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INVOCATION_PREFIX = 'OXR_EXTENSION_SUPPORT'
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END_OF_PER_EXTENSION = '// end of per-extension defines - do not modify this comment - used by scripts'
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CLANG_FORMAT_OFF = '// clang-format off'
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CLANG_FORMAT_ON = '// clang-format on'
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def trim_ext_name(name):
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return name[3:]
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def generate_first_chunk():
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parts = []
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for data in EXTENSIONS:
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ext_name = data[0]
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trimmed_name = trim_ext_name(ext_name)
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upper_name = trimmed_name.upper()
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condition = " && ".join("defined({})".format(x) for x in data)
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parts.append(f"""
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/*
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* {ext_name}
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*/
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#if {condition}
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#define OXR_HAVE_{trimmed_name}
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#define {INVOCATION_PREFIX}_{trimmed_name}(_) \\
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_({trimmed_name}, {upper_name})
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#else
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#define {INVOCATION_PREFIX}_{trimmed_name}(_)
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#endif
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""")
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return '\n'.join(parts)
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def generate_second_chunk():
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trimmed_names = [trim_ext_name(data[0]) for data in EXTENSIONS]
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invocations = ('{}_{}(_)'.format(INVOCATION_PREFIX, name)
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for name in trimmed_names)
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macro_lines = ['#define OXR_EXTENSION_SUPPORT_GENERATE(_)']
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macro_lines.extend(invocations)
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lines = [CLANG_FORMAT_OFF]
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lines.append(' \\\n '.join(macro_lines))
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lines.append(CLANG_FORMAT_ON)
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return '\n'.join(lines)
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if __name__ == "__main__":
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with open(str(FN), 'r', encoding='utf-8') as fp:
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orig = [line.rstrip() for line in fp.readlines()]
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beginning = orig[:orig.index('#pragma once')+1]
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middle_start = orig.index(END_OF_PER_EXTENSION)
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middle_end = orig.index(CLANG_FORMAT_OFF)
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middle = orig[middle_start:middle_end]
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new_contents = beginning
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new_contents.append(generate_first_chunk())
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new_contents.extend(middle)
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new_contents.append(generate_second_chunk())
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with open(str(FN), 'w', encoding='utf-8') as fp:
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fp.write('\n'.join(new_contents))
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fp.write('\n')
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