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/*
* Copyright (C) 2021 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.
*/
#include <common/FlagManager.h>
#include <SurfaceFlingerProperties.sysprop.h>
#include <android-base/parsebool.h>
#include <android-base/parseint.h>
#include <android-base/properties.h>
#include <android-base/stringprintf.h>
#include <log/log.h>
#include <renderengine/RenderEngine.h>
#include <server_configurable_flags/get_flags.h>
#include <cinttypes>
#include <com_android_graphics_surfaceflinger_flags.h>
namespace android {
using namespace com::android::graphics::surfaceflinger;
static constexpr const char* kExperimentNamespace = "surface_flinger_native_boot";
std::unique_ptr<FlagManager> FlagManager::mInstance;
std::once_flag FlagManager::mOnce;
FlagManager::FlagManager(ConstructorTag) {}
FlagManager::~FlagManager() = default;
namespace {
std::optional<bool> parseBool(const char* str) {
base::ParseBoolResult parseResult = base::ParseBool(str);
switch (parseResult) {
case base::ParseBoolResult::kTrue:
return std::make_optional(true);
case base::ParseBoolResult::kFalse:
return std::make_optional(false);
case base::ParseBoolResult::kError:
return std::nullopt;
}
}
bool getFlagValue(std::function<bool()> getter, std::optional<bool> overrideValue) {
if (overrideValue.has_value()) {
return *overrideValue;
}
return getter();
}
} // namespace
const FlagManager& FlagManager::getInstance() {
return getMutableInstance();
}
FlagManager& FlagManager::getMutableInstance() {
std::call_once(mOnce, [&] {
LOG_ALWAYS_FATAL_IF(mInstance, "Instance already created");
mInstance = std::make_unique<FlagManager>(ConstructorTag{});
});
return *mInstance;
}
void FlagManager::markBootCompleted() {
mBootCompleted = true;
}
void FlagManager::setUnitTestMode() {
mUnitTestMode = true;
// Also set boot completed as we don't really care about it in unit testing
mBootCompleted = true;
}
void FlagManager::dumpFlag(std::string& result, bool readonly, const char* name,
std::function<bool()> getter) const {
if (readonly || mBootCompleted) {
base::StringAppendF(&result, "%s: %s\n", name, getter() ? "true" : "false");
} else {
base::StringAppendF(&result, "%s: in progress (still booting)\n", name);
}
}
void FlagManager::dump(std::string& result) const {
#define DUMP_FLAG_INTERVAL(name, readonly) \
dumpFlag(result, (readonly), #name, std::bind(&FlagManager::name, this))
#define DUMP_SERVER_FLAG(name) DUMP_FLAG_INTERVAL(name, false)
#define DUMP_READ_ONLY_FLAG(name) DUMP_FLAG_INTERVAL(name, true)
base::StringAppendF(&result, "FlagManager values: \n");
/// Legacy server flags ///
DUMP_SERVER_FLAG(use_adpf_cpu_hint);
DUMP_SERVER_FLAG(use_skia_tracing);
/// Trunk stable server flags ///
DUMP_SERVER_FLAG(refresh_rate_overlay_on_external_display);
/// Trunk stable readonly flags ///
DUMP_READ_ONLY_FLAG(connected_display);
DUMP_READ_ONLY_FLAG(enable_small_area_detection);
DUMP_READ_ONLY_FLAG(misc1);
DUMP_READ_ONLY_FLAG(vrr_config);
DUMP_READ_ONLY_FLAG(hotplug2);
DUMP_READ_ONLY_FLAG(hdcp_level_hal);
DUMP_READ_ONLY_FLAG(multithreaded_present);
DUMP_READ_ONLY_FLAG(add_sf_skipped_frames_to_trace);
DUMP_READ_ONLY_FLAG(use_known_refresh_rate_for_fps_consistency);
DUMP_READ_ONLY_FLAG(cache_when_source_crop_layer_only_moved);
DUMP_READ_ONLY_FLAG(enable_fro_dependent_features);
DUMP_READ_ONLY_FLAG(display_protected);
DUMP_READ_ONLY_FLAG(fp16_client_target);
DUMP_READ_ONLY_FLAG(game_default_frame_rate);
DUMP_READ_ONLY_FLAG(enable_layer_command_batching);
DUMP_READ_ONLY_FLAG(screenshot_fence_preservation);
DUMP_READ_ONLY_FLAG(vulkan_renderengine);
DUMP_READ_ONLY_FLAG(renderable_buffer_usage);
DUMP_READ_ONLY_FLAG(restore_blur_step);
DUMP_READ_ONLY_FLAG(dont_skip_on_early_ro);
DUMP_READ_ONLY_FLAG(protected_if_client);
#undef DUMP_READ_ONLY_FLAG
#undef DUMP_SERVER_FLAG
#undef DUMP_FLAG_INTERVAL
}
std::optional<bool> FlagManager::getBoolProperty(const char* property) const {
return parseBool(base::GetProperty(property, "").c_str());
}
bool FlagManager::getServerConfigurableFlag(const char* experimentFlagName) const {
const auto value = server_configurable_flags::GetServerConfigurableFlag(kExperimentNamespace,
experimentFlagName, "");
const auto res = parseBool(value.c_str());
return res.has_value() && res.value();
}
#define FLAG_MANAGER_LEGACY_SERVER_FLAG(name, syspropOverride, serverFlagName) \
bool FlagManager::name() const { \
LOG_ALWAYS_FATAL_IF(!mBootCompleted, \
"Can't read %s before boot completed as it is server writable", \
__func__); \
const auto debugOverride = getBoolProperty(syspropOverride); \
if (debugOverride.has_value()) return debugOverride.value(); \
return getServerConfigurableFlag(serverFlagName); \
}
#define FLAG_MANAGER_FLAG_INTERNAL(name, syspropOverride, checkForBootCompleted) \
bool FlagManager::name() const { \
if (checkForBootCompleted) { \
LOG_ALWAYS_FATAL_IF(!mBootCompleted, \
"Can't read %s before boot completed as it is server writable", \
__func__); \
} \
static const std::optional<bool> debugOverride = getBoolProperty(syspropOverride); \
static const bool value = getFlagValue([] { return flags::name(); }, debugOverride); \
if (mUnitTestMode) { \
/* \
* When testing, we don't want to rely on the cached `value` or the debugOverride. \
*/ \
return flags::name(); \
} \
return value; \
}
#define FLAG_MANAGER_SERVER_FLAG(name, syspropOverride) \
FLAG_MANAGER_FLAG_INTERNAL(name, syspropOverride, true)
#define FLAG_MANAGER_READ_ONLY_FLAG(name, syspropOverride) \
FLAG_MANAGER_FLAG_INTERNAL(name, syspropOverride, false)
/// Legacy server flags ///
FLAG_MANAGER_LEGACY_SERVER_FLAG(test_flag, "", "")
FLAG_MANAGER_LEGACY_SERVER_FLAG(use_adpf_cpu_hint, "debug.sf.enable_adpf_cpu_hint",
"AdpfFeature__adpf_cpu_hint")
FLAG_MANAGER_LEGACY_SERVER_FLAG(use_skia_tracing, PROPERTY_SKIA_ATRACE_ENABLED,
"SkiaTracingFeature__use_skia_tracing")
/// Trunk stable readonly flags ///
FLAG_MANAGER_READ_ONLY_FLAG(connected_display, "")
FLAG_MANAGER_READ_ONLY_FLAG(enable_small_area_detection, "")
FLAG_MANAGER_READ_ONLY_FLAG(misc1, "")
FLAG_MANAGER_READ_ONLY_FLAG(vrr_config, "debug.sf.enable_vrr_config")
FLAG_MANAGER_READ_ONLY_FLAG(hotplug2, "")
FLAG_MANAGER_READ_ONLY_FLAG(hdcp_level_hal, "")
FLAG_MANAGER_READ_ONLY_FLAG(multithreaded_present, "debug.sf.multithreaded_present")
FLAG_MANAGER_READ_ONLY_FLAG(add_sf_skipped_frames_to_trace, "")
FLAG_MANAGER_READ_ONLY_FLAG(use_known_refresh_rate_for_fps_consistency, "")
FLAG_MANAGER_READ_ONLY_FLAG(cache_when_source_crop_layer_only_moved,
"debug.sf.cache_source_crop_only_moved")
FLAG_MANAGER_READ_ONLY_FLAG(enable_fro_dependent_features, "")
FLAG_MANAGER_READ_ONLY_FLAG(display_protected, "")
FLAG_MANAGER_READ_ONLY_FLAG(fp16_client_target, "debug.sf.fp16_client_target")
FLAG_MANAGER_READ_ONLY_FLAG(game_default_frame_rate, "")
FLAG_MANAGER_READ_ONLY_FLAG(enable_layer_command_batching, "")
FLAG_MANAGER_READ_ONLY_FLAG(screenshot_fence_preservation, "debug.sf.screenshot_fence_preservation")
FLAG_MANAGER_READ_ONLY_FLAG(vulkan_renderengine, "debug.renderengine.vulkan")
FLAG_MANAGER_READ_ONLY_FLAG(renderable_buffer_usage, "")
FLAG_MANAGER_READ_ONLY_FLAG(restore_blur_step, "debug.renderengine.restore_blur_step")
FLAG_MANAGER_READ_ONLY_FLAG(dont_skip_on_early_ro, "")
FLAG_MANAGER_READ_ONLY_FLAG(protected_if_client, "")
/// Trunk stable server flags ///
FLAG_MANAGER_SERVER_FLAG(refresh_rate_overlay_on_external_display, "")
} // namespace android
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