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Improve performance of looking up static system properties

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This commit is contained in:
Cameron Gutman
2019-03-23 12:05:08 -07:00
parent c313f1a20b
commit 2703efedef
9 changed files with 164 additions and 161 deletions
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123
app/settings/streamingpreferences.cpp
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@@ -1,6 +1,4 @@
#include "streamingpreferences.h"
#include "streaming/session.h"
#include "streaming/streamutils.h"
#include <QSettings>
@@ -88,127 +86,6 @@ void StreamingPreferences::save()
settings.setValue(SER_WINDOWMODE, static_cast<int>(windowMode));
}
bool StreamingPreferences::hasAnyHardwareAcceleration()
{
// Always use VDS_AUTO to avoid spamming the user with warnings
// if they've forced software decoding.
return Session::isHardwareDecodeAvailable(VDS_AUTO,
VIDEO_FORMAT_H264,
1920, 1080, 60);
}
bool StreamingPreferences::isRunningWayland()
{
return qgetenv("XDG_SESSION_TYPE") == QByteArray("wayland");
}
bool StreamingPreferences::isWow64()
{
#ifdef Q_OS_WIN32
return QSysInfo::currentCpuArchitecture() != QSysInfo::buildCpuArchitecture();
#else
return false;
#endif
}
QString StreamingPreferences::getUnmappedGamepads()
{
return SdlInputHandler::getUnmappedGamepads();
}
int StreamingPreferences::getMaximumStreamingFrameRate()
{
// Never let the maximum drop below 60 FPS
int maxFrameRate = 60;
if (SDL_InitSubSystem(SDL_INIT_VIDEO) != 0) {
SDL_LogError(SDL_LOG_CATEGORY_APPLICATION,
"SDL_InitSubSystem(SDL_INIT_VIDEO) failed: %s",
SDL_GetError());
return maxFrameRate;
}
SDL_DisplayMode mode, bestMode, desktopMode;
for (int displayIndex = 0; displayIndex < SDL_GetNumVideoDisplays(); displayIndex++) {
// Get the native desktop resolution
if (StreamUtils::getRealDesktopMode(displayIndex, &desktopMode)) {
// Start at desktop mode and work our way up
bestMode = desktopMode;
for (int i = 0; i < SDL_GetNumDisplayModes(displayIndex); i++) {
if (SDL_GetDisplayMode(displayIndex, i, &mode) == 0) {
if (mode.w == desktopMode.w && mode.h == desktopMode.h) {
if (mode.refresh_rate > bestMode.refresh_rate) {
bestMode = mode;
}
}
}
}
maxFrameRate = qMax(maxFrameRate, bestMode.refresh_rate);
}
}
SDL_QuitSubSystem(SDL_INIT_VIDEO);
return maxFrameRate;
}
QRect StreamingPreferences::getDesktopResolution(int displayIndex)
{
if (SDL_InitSubSystem(SDL_INIT_VIDEO) != 0) {
SDL_LogError(SDL_LOG_CATEGORY_APPLICATION,
"SDL_InitSubSystem(SDL_INIT_VIDEO) failed: %s",
SDL_GetError());
return QRect();
}
if (displayIndex >= SDL_GetNumVideoDisplays()) {
SDL_QuitSubSystem(SDL_INIT_VIDEO);
return QRect();
}
SDL_DisplayMode mode;
int err = SDL_GetDesktopDisplayMode(displayIndex, &mode);
SDL_QuitSubSystem(SDL_INIT_VIDEO);
if (err == 0) {
return QRect(0, 0, mode.w, mode.h);
}
else {
SDL_LogError(SDL_LOG_CATEGORY_APPLICATION,
"SDL_GetDesktopDisplayMode() failed: %s",
SDL_GetError());
return QRect();
}
}
QRect StreamingPreferences::getNativeResolution(int displayIndex)
{
if (SDL_InitSubSystem(SDL_INIT_VIDEO) != 0) {
SDL_LogError(SDL_LOG_CATEGORY_APPLICATION,
"SDL_InitSubSystem(SDL_INIT_VIDEO) failed: %s",
SDL_GetError());
return QRect();
}
if (displayIndex >= SDL_GetNumVideoDisplays()) {
SDL_QuitSubSystem(SDL_INIT_VIDEO);
return QRect();
}
SDL_DisplayMode mode;
bool success = StreamUtils::getRealDesktopMode(displayIndex, &mode);
SDL_QuitSubSystem(SDL_INIT_VIDEO);
if (success) {
return QRect(0, 0, mode.w, mode.h);
}
else {
return QRect();
}
}
int StreamingPreferences::getDefaultBitrate(int width, int height, int fps)
{
// This table prefers 16:10 resolutions because they are