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165 lines
4.3 KiB
165 lines
4.3 KiB
#!/usr/bin/env python3
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#
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# Copyright 2019 The Android Open Source Project
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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"""Generates the null_driver_gen.h and null_driver_gen.cpp.
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"""
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import os
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import generator_common as gencom
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# Extensions implemented by the driver.
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_DRIVER_EXTENSION_DICT = {
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'VK_ANDROID_native_buffer',
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'VK_EXT_debug_report',
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'VK_KHR_get_physical_device_properties2'
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}
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def _is_driver_function(cmd):
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"""Returns true if the function is implemented by the driver.
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Args:
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cmd: Vulkan function name.
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"""
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if cmd in gencom.extension_dict:
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return gencom.extension_dict[cmd] in _DRIVER_EXTENSION_DICT
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return True
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def gen_h():
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"""Generates the null_driver_gen.h file.
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"""
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genfile = os.path.join(os.path.dirname(__file__),
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'..', 'nulldrv', 'null_driver_gen.h')
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with open(genfile, 'w') as f:
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f.write(gencom.copyright_and_warning(2015))
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f.write("""\
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#ifndef NULLDRV_NULL_DRIVER_H
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#define NULLDRV_NULL_DRIVER_H 1
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#include <vulkan/vk_android_native_buffer.h>
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#include <vulkan/vulkan.h>
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namespace null_driver {
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PFN_vkVoidFunction GetGlobalProcAddr(const char* name);
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PFN_vkVoidFunction GetInstanceProcAddr(const char* name);
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// clang-format off\n""")
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for cmd in gencom.command_list:
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if _is_driver_function(cmd):
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param_list = [''.join(i) for i in gencom.param_dict[cmd]]
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f.write('VKAPI_ATTR ' + gencom.return_type_dict[cmd] + ' ' +
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gencom.base_name(cmd) + '(' + ', '.join(param_list) + ');\n')
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f.write("""\
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// clang-format on
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} // namespace null_driver
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#endif // NULLDRV_NULL_DRIVER_H\n""")
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f.close()
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gencom.run_clang_format(genfile)
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def gen_cpp():
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"""Generates the null_driver_gen.cpp file.
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"""
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genfile = os.path.join(os.path.dirname(__file__),
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'..', 'nulldrv', 'null_driver_gen.cpp')
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with open(genfile, 'w') as f:
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f.write(gencom.copyright_and_warning(2015))
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f.write("""\
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#include <algorithm>
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#include "null_driver_gen.h"
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using namespace null_driver;
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namespace {
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struct NameProc {
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const char* name;
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PFN_vkVoidFunction proc;
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};
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PFN_vkVoidFunction Lookup(const char* name,
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const NameProc* begin,
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const NameProc* end) {
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const auto& entry = std::lower_bound(
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begin, end, name,
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[](const NameProc& e, const char* n) { return strcmp(e.name, n) < 0; });
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if (entry == end || strcmp(entry->name, name) != 0)
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return nullptr;
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return entry->proc;
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}
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template <size_t N>
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PFN_vkVoidFunction Lookup(const char* name, const NameProc (&procs)[N]) {
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return Lookup(name, procs, procs + N);
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}
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const NameProc kGlobalProcs[] = {
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// clang-format off\n""")
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sorted_command_list = sorted(gencom.command_list)
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for cmd in sorted_command_list:
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if (_is_driver_function(cmd) and
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gencom.get_dispatch_table_type(cmd) == 'Global'):
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f.write(gencom.indent(1) + '{\"' + cmd +
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'\", reinterpret_cast<PFN_vkVoidFunction>(static_cast<PFN_' +
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cmd + '>(' + gencom.base_name(cmd) + '))},\n')
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f.write("""\
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// clang-format on
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};
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const NameProc kInstanceProcs[] = {
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// clang-format off\n""")
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for cmd in sorted_command_list:
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if _is_driver_function(cmd):
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f.write(gencom.indent(1) + '{\"' + cmd +
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'\", reinterpret_cast<PFN_vkVoidFunction>(static_cast<PFN_' +
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cmd + '>(' + gencom.base_name(cmd) + '))},\n')
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f.write("""\
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// clang-format on
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};
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} // namespace
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namespace null_driver {
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PFN_vkVoidFunction GetGlobalProcAddr(const char* name) {
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return Lookup(name, kGlobalProcs);
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}
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PFN_vkVoidFunction GetInstanceProcAddr(const char* name) {
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return Lookup(name, kInstanceProcs);
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}
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} // namespace null_driver\n""")
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f.close()
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gencom.run_clang_format(genfile)
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