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Respect integrated GPU preference in Windows Settings

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This commit is contained in:
Alvin Wong 2024-07-06 05:21:43 +08:00
parent 97b8ad1af0
commit 4091abd727
4 changed files with 53 additions and 2 deletions
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1
core/os/os.h
View File

@ -137,6 +137,7 @@ public:
int get_display_driver_id() const { return _display_driver_id; }
virtual Vector<String> get_video_adapter_driver_info() const = 0;
virtual bool get_user_prefers_integrated_gpu() const { return false; }
void print_error(const char *p_function, const char *p_file, int p_line, const char *p_code, const char *p_rationale, bool p_editor_notify = false, Logger::ErrorType p_type = Logger::ERR_ERROR);
void print(const char *p_format, ...) _PRINTF_FORMAT_ATTRIBUTE_2_3;

48
platform/windows/os_windows.cpp
View File

@ -622,6 +622,54 @@ Vector<String> OS_Windows::get_video_adapter_driver_info() const {
return info;
}
bool OS_Windows::get_user_prefers_integrated_gpu() const {
// On Windows 10, the preferred GPU configured in Windows Settings is
// stored in the registry under the key
// `HKEY_CURRENT_USER\SOFTWARE\Microsoft\DirectX\UserGpuPreferences`
// with the name being the EXE path. The value is in the form of
// `GpuPreference=1;`, with the value being 1 for integrated GPU and 2
// for discrete GPU. On Windows 11, there may be more flags, separated
// by semicolons.
WCHAR exe_path[32768];
if (GetModuleFileNameW(nullptr, exe_path, sizeof(exe_path) / sizeof(exe_path[0])) >= sizeof(exe_path) / sizeof(exe_path[0])) {
// Paths should never be longer than 32767, but just in case.
return false;
}
LPCWSTR subkey = L"SOFTWARE\\Microsoft\\DirectX\\UserGpuPreferences";
HKEY hkey = nullptr;
LSTATUS result = RegOpenKeyExW(HKEY_CURRENT_USER, subkey, 0, KEY_READ, &hkey);
if (result != ERROR_SUCCESS) {
return false;
}
DWORD size = 0;
result = RegGetValueW(hkey, nullptr, exe_path, RRF_RT_REG_SZ, nullptr, nullptr, &size);
if (result != ERROR_SUCCESS || size == 0) {
RegCloseKey(hkey);
return false;
}
Vector<WCHAR> buffer;
buffer.resize(size / sizeof(WCHAR));
result = RegGetValueW(hkey, nullptr, exe_path, RRF_RT_REG_SZ, nullptr, (LPBYTE)buffer.ptrw(), &size);
if (result != ERROR_SUCCESS) {
RegCloseKey(hkey);
return false;
}
RegCloseKey(hkey);
const String flags = String::utf16((const char16_t *)buffer.ptr(), size / sizeof(WCHAR));
for (const String &flag : flags.split(";", false)) {
if (flag == "GpuPreference=1") {
return true;
}
}
return false;
}
OS::DateTime OS_Windows::get_datetime(bool p_utc) const {
SYSTEMTIME systemtime;
if (p_utc) {

1
platform/windows/os_windows.h
View File

@ -172,6 +172,7 @@ public:
virtual String get_version() const override;
virtual Vector<String> get_video_adapter_driver_info() const override;
virtual bool get_user_prefers_integrated_gpu() const override;
virtual void initialize_joypads() override {}

5
servers/rendering/rendering_device.cpp
View File

@ -82,11 +82,12 @@ static String _get_device_type_name(const RenderingContextDriver::Device &p_devi
}
static uint32_t _get_device_type_score(const RenderingContextDriver::Device &p_device) {
static const bool prefer_integrated = OS::get_singleton()->get_user_prefers_integrated_gpu();
switch (p_device.type) {
case RenderingContextDriver::DEVICE_TYPE_INTEGRATED_GPU:
return 4;
return prefer_integrated ? 5 : 4;
case RenderingContextDriver::DEVICE_TYPE_DISCRETE_GPU:
return 5;
return prefer_integrated ? 4 : 5;
case RenderingContextDriver::DEVICE_TYPE_VIRTUAL_GPU:
return 3;
case RenderingContextDriver::DEVICE_TYPE_CPU: