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// Copyright 2016 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "remoting/host/host_attributes.h"
#include <string>
#include <type_traits>
#include <vector>
#include "base/atomicops.h"
#include "base/check_op.h"
#include "base/strings/string_util.h"
#include "build/branding_buildflags.h"
#include "build/build_config.h"
#if BUILDFLAG(IS_WIN)
#include "media/base/win/mf_initializer.h"
#include "remoting/host/win/evaluate_3d_display_mode.h"
#include "remoting/host/win/evaluate_d3d.h"
#endif
namespace remoting {
namespace {
static constexpr char kSeparator[] = ",";
struct Attribute {
const char* name;
bool (*get_value_func)();
};
inline constexpr bool IsDebug() {
#if defined(NDEBUG)
return false;
#else
return true;
#endif
}
inline constexpr bool IsChromeBranded() {
#if BUILDFLAG(GOOGLE_CHROME_BRANDING)
return true;
#elif BUILDFLAG(CHROMIUM_BRANDING)
return false;
#else
#error Only Chrome and Chromium brands are supported.
#endif
}
inline constexpr bool IsChromiumBranded() {
return !IsChromeBranded();
}
inline constexpr bool IsOfficialBuild() {
#if defined(OFFICIAL_BUILD)
return true;
#else
return false;
#endif
}
inline constexpr bool IsNonOfficialBuild() {
return !IsOfficialBuild();
}
// By using std::size() macro in base/macros.h, it's illegal to have empty
// arrays.
//
// error: no matching function for call to 'ArraySizeHelper'
// note: candidate template ignored: substitution failure
// [with T = const remoting::StaticAttribute, N = 0]:
// zero-length arrays are not permitted in C++.
//
// So we need IsDebug() function, and "Debug-Build" Attribute.
static constexpr Attribute kAttributes[] = {
{"Debug-Build", &IsDebug},
{"ChromeBrand", &IsChromeBranded},
{"ChromiumBrand", &IsChromiumBranded},
{"OfficialBuild", &IsOfficialBuild},
{"NonOfficialBuild", &IsNonOfficialBuild},
};
} // namespace
std::string GetHostAttributes() {
std::vector<std::string> result;
for (const auto& attribute : kAttributes) {
DCHECK_EQ(std::string(attribute.name).find(kSeparator), std::string::npos);
if (attribute.get_value_func()) {
result.push_back(attribute.name);
}
}
#if BUILDFLAG(IS_WIN)
GetD3DCapabilities(&result);
result.push_back("Win10+");
// TODO(crbug.com/40752360): Remove this and/or the entire HostAttributes
// class so we can remove //remoting/host:common from //media/gpu's visibility
// list.
if (media::InitializeMediaFoundation()) {
result.push_back("HWEncoder");
}
#elif BUILDFLAG(IS_LINUX) || BUILDFLAG(IS_CHROMEOS)
result.push_back("HWEncoder");
#endif
return base::JoinString(result, kSeparator);
}
} // namespace remoting
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