mirror of
https://github.com/KhronosGroup/Vulkan-Utility-Libraries.git
synced 2025-05-14 16:58:43 +00:00
115 lines
4.7 KiB
Python
115 lines
4.7 KiB
Python
#!/usr/bin/python3 -i
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#
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# Copyright 2023 The Khronos Group Inc.
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# Copyright 2023 Valve Corporation
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# Copyright 2023 LunarG, Inc.
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#
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# SPDX-License-Identifier: Apache-2.0
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import os
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from base_generator import BaseGenerator
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from generators.generator_utils import PlatformGuardHelper
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class EnumStringHelperOutputGenerator(BaseGenerator):
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def __init__(self):
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BaseGenerator.__init__(self)
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def generate(self):
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out = []
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out.append(f'''// *** THIS FILE IS GENERATED - DO NOT EDIT ***
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// See {os.path.basename(__file__)} for modifications
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// Copyright 2023 The Khronos Group Inc.
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// Copyright 2023 Valve Corporation
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// Copyright 2023 LunarG, Inc.
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//
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// SPDX-License-Identifier: Apache-2.0
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''')
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out.append('''
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#pragma once
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// clang-format off
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#ifdef __cplusplus
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#include <string>
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#endif
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#include <vulkan/vulkan.h>
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''')
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guard_helper = PlatformGuardHelper()
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# If there are no fields (empty enum) ignore
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for enum in [x for x in self.vk.enums.values() if len(x.fields) > 0]:
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groupType = enum.name if enum.bitWidth == 32 else 'uint64_t'
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out.extend(guard_helper.add_guard(enum.protect))
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out.append(f'static inline const char* string_{enum.name}({groupType} input_value) {{\n')
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out.append(' switch (input_value) {\n')
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enum_field_guard_helper = PlatformGuardHelper()
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for field in enum.fields:
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out.extend(enum_field_guard_helper.add_guard(field.protect))
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out.append(f' case {field.name}:\n')
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out.append(f' return "{field.name}";\n')
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out.extend(enum_field_guard_helper.add_guard(None))
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out.append(' default:\n')
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out.append(f' return "Unhandled {enum.name}";\n')
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out.append(' }\n')
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out.append('}\n')
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out.extend(guard_helper.add_guard(None))
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out.append('\n')
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# For bitmask, first create a string for FlagBits, then a Flags version that calls into it
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# If there are no flags (empty bitmask) ignore
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for bitmask in [x for x in self.vk.bitmasks.values() if len(x.flags) > 0]:
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groupType = bitmask.name if bitmask.bitWidth == 32 else 'uint64_t'
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# switch labels must be constant expressions. In C a const-qualified variable is not a constant expression.
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use_switch_statement = True
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if groupType == 'uint64_t':
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use_switch_statement = False
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out.extend(guard_helper.add_guard(bitmask.protect))
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out.append(f'static inline const char* string_{bitmask.name}({groupType} input_value) {{\n')
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bitmask_field_guard_helper = PlatformGuardHelper()
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if use_switch_statement:
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out.append(' switch (input_value) {\n')
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for flag in [x for x in bitmask.flags if not x.multiBit]:
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out.extend(bitmask_field_guard_helper.add_guard(flag.protect))
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out.append(f' case {flag.name}:\n')
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out.append(f' return "{flag.name}";\n')
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out.extend(bitmask_field_guard_helper.add_guard(None))
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out.append(' default:\n')
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out.append(f' return "Unhandled {bitmask.name}";\n')
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out.append(' }\n')
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else:
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# We need to use if statements
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for flag in [x for x in bitmask.flags if not x.multiBit]:
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out.extend(bitmask_field_guard_helper.add_guard(flag.protect))
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out.append(f' if (input_value == {flag.name}) return "{flag.name}";\n')
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out.extend(bitmask_field_guard_helper.add_guard(None))
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out.append(f' return "Unhandled {bitmask.name}";\n')
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out.append('}\n')
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mulitBitChecks = ''
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for flag in [x for x in bitmask.flags if x.multiBit]:
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mulitBitChecks += f' if (input_value == {flag.name}) {{ return "{flag.name}"; }}\n'
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intSuffix = 'U' if bitmask.bitWidth == 32 else 'ULL'
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out.append('\n#ifdef __cplusplus')
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out.append(f'''
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static inline std::string string_{bitmask.flagName}({bitmask.flagName} input_value) {{
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{mulitBitChecks} std::string ret;
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int index = 0;
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while(input_value) {{
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if (input_value & 1) {{
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if( !ret.empty()) ret.append("|");
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ret.append(string_{bitmask.name}(static_cast<{groupType}>(1{intSuffix} << index)));
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}}
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++index;
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input_value >>= 1;
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}}
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if (ret.empty()) ret.append("{bitmask.flagName}(0)");
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return ret;
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}}\n''')
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out.append('#endif // __cplusplus\n')
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out.extend(guard_helper.add_guard(None))
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out.append('// clang-format on')
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self.write("".join(out))
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