| // Copyright 2021 The SwiftShader Authors. All Rights Reserved. |
| // |
| // 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. |
| |
| #include "libXCB.hpp" |
| |
| #include "System/SharedLibrary.hpp" |
| |
| #include <memory> |
| |
| LibXcbExports::LibXcbExports(void *lib) |
| { |
| getFuncAddress(lib, "xcb_create_gc", &xcb_create_gc); |
| getFuncAddress(lib, "xcb_flush", &xcb_flush); |
| getFuncAddress(lib, "xcb_free_gc", &xcb_free_gc); |
| getFuncAddress(lib, "xcb_generate_id", &xcb_generate_id); |
| getFuncAddress(lib, "xcb_get_geometry", &xcb_get_geometry); |
| getFuncAddress(lib, "xcb_get_geometry_reply", &xcb_get_geometry_reply); |
| getFuncAddress(lib, "xcb_put_image", &xcb_put_image); |
| } |
| |
| LibXcbExports *LibXCB::operator->() |
| { |
| return loadExports(); |
| } |
| |
| LibXcbExports *LibXCB::loadExports() |
| { |
| static auto exports = [] { |
| if(getProcAddress(RTLD_DEFAULT, "xcb_create_gc")) |
| { |
| return std::make_unique<LibXcbExports>(RTLD_DEFAULT); |
| } |
| |
| if(void *lib = loadLibrary("libxcb.so.1")) |
| { |
| return std::make_unique<LibXcbExports>(lib); |
| } |
| |
| return std::unique_ptr<LibXcbExports>(); |
| }(); |
| |
| return exports.get(); |
| } |
| |
| LibXCB libXCB; |