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