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// Copyright 2021 The Dawn & Tint Authors
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are met:
//
// 1. Redistributions of source code must retain the above copyright notice, this
// list of conditions and the following disclaimer.
//
// 2. Redistributions in binary form must reproduce the above copyright notice,
// this list of conditions and the following disclaimer in the documentation
// and/or other materials provided with the distribution.
//
// 3. Neither the name of the copyright holder nor the names of its
// contributors may be used to endorse or promote products derived from
// this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
// AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
// DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
// FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
// DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
// SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
// CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
// OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
#ifndef SRC_DAWN_NATIVE_X11FUNCTIONS_H_
#define SRC_DAWN_NATIVE_X11FUNCTIONS_H_
#include "dawn/common/DynamicLib.h"
#include "dawn/native/Error.h"
#include "dawn/common/xlib_with_undefs.h"
class DynamicLib;
namespace dawn::native {
// A helper class that dynamically loads the x11 and x11-xcb libraries that might not be present
// on all platforms Dawn is deployed on. Note that x11-xcb might not be present even if x11 is.
class X11Functions {
public:
X11Functions();
~X11Functions();
bool IsX11Loaded() const;
bool IsX11XcbLoaded() const;
// Functions from x11
decltype(&::XSetErrorHandler) xSetErrorHandler = nullptr;
decltype(&::XGetWindowAttributes) xGetWindowAttributes = nullptr;
// Functions from x11-xcb
decltype(&::XGetXCBConnection) xGetXCBConnection = nullptr;
private:
DynamicLib mX11Lib;
DynamicLib mX11XcbLib;
};
} // namespace dawn::native
#endif // SRC_DAWN_NATIVE_X11FUNCTIONS_H_