gecko-dev/dom/canvas/SanitizeRenderer.h

57 строки
1.5 KiB
C++

/* -*- Mode: C++; tab-width: 20; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#ifndef mozilla_RendererSanitizer_h
#define mozilla_RendererSanitizer_h
#include <string>
namespace mozilla {
namespace dom {
inline static void SanitizeRenderer(std::string& aRenderer) {
// Remove DRM, kernel, and LLVM versions exposed by amdgpu.
// The string looks like this:
//
// AMD Radeon (TM) GPU model Graphics (GPUgeneration, DRM
// DRMversion, kernelversion, LLVM LLVMversion)
//
// e.g. AMD Radeon (TM) RX 460 Graphics (POLARIS11,
// DRM 3.35.0, 5.4.0-65-generic, LLVM 11.0.0)
//
// OR
//
// AMD Radeon GPU model (GPUgeneration, DRM DRMversion, kernelversion, LLVM
// LLVMversion)
//
// Just in case, let's handle the case without GPUgeneration, i.e.
//
// AMD Radeon GPU model (DRM DRMversion, kernelversion, LLVM LLVMversion)
//
// even though there's no existence proof of this variant.
if (aRenderer.empty()) {
return;
}
if (aRenderer.back() != ')') {
return;
}
auto pos = aRenderer.find(", DRM ");
if (pos != std::string::npos) {
aRenderer.resize(pos);
aRenderer.push_back(')');
return;
}
pos = aRenderer.find(" (DRM ");
if (pos != std::string::npos) {
aRenderer.resize(pos);
return;
}
}
}; // namespace dom
}; // namespace mozilla
#endif // mozilla_RendererSanitizer_h