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Run in native resolution on Retina displays when streaming above scaled resolution

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This commit is contained in:
Cameron Gutman
2018-09-07 01:12:18 -07:00
parent 475a39cb73
commit 6a2b717ff1
1 changed files with 44 additions and 29 deletions
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73
app/streaming/session.cpp
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@@ -620,39 +620,54 @@ void Session::updateOptimalWindowDisplayMode()
SDL_DisplayMode desktopMode, bestMode, mode;
int displayIndex = SDL_GetWindowDisplayIndex(m_Window);
// Get the native desktop resolution
if (StreamUtils::getRealDesktopMode(displayIndex, &desktopMode)) {
// Start with the native desktop resolution and try to find
// the highest refresh rate that our stream FPS evenly divides.
bestMode = desktopMode;
bestMode.refresh_rate = 0;
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 &&
mode.refresh_rate % m_StreamConfig.fps == 0) {
if (mode.refresh_rate > bestMode.refresh_rate) {
bestMode = mode;
}
// Try the current display mode first. On macOS, this will be the normal
// scaled desktop resolution setting.
if (SDL_GetDesktopDisplayMode(displayIndex, &desktopMode) == 0) {
// If this doesn't fit the selected resolution, use the native
// resolution of the panel (unscaled).
if (desktopMode.w < m_ActiveVideoWidth || desktopMode.h < m_ActiveVideoHeight) {
if (!StreamUtils::getRealDesktopMode(displayIndex, &desktopMode)) {
return;
}
}
}
else {
SDL_LogWarn(SDL_LOG_CATEGORY_APPLICATION,
"SDL_GetDesktopDisplayMode() failed: %s",
SDL_GetError());
return;
}
// Start with the native desktop resolution and try to find
// the highest refresh rate that our stream FPS evenly divides.
bestMode = desktopMode;
bestMode.refresh_rate = 0;
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 &&
mode.refresh_rate % m_StreamConfig.fps == 0) {
if (mode.refresh_rate > bestMode.refresh_rate) {
bestMode = mode;
}
}
}
if (bestMode.refresh_rate == 0) {
// We may find no match if the user has moved a 120 FPS
// stream onto a 60 Hz monitor (since no refresh rate can
// divide our FPS setting). We'll stick to the default in
// this case.
SDL_LogWarn(SDL_LOG_CATEGORY_APPLICATION,
"No matching refresh rate found; using desktop mode");
bestMode = desktopMode;
}
SDL_LogInfo(SDL_LOG_CATEGORY_APPLICATION,
"Chosen best display mode: %dx%dx%d",
bestMode.w, bestMode.h, bestMode.refresh_rate);
SDL_SetWindowDisplayMode(m_Window, &bestMode);
}
if (bestMode.refresh_rate == 0) {
// We may find no match if the user has moved a 120 FPS
// stream onto a 60 Hz monitor (since no refresh rate can
// divide our FPS setting). We'll stick to the default in
// this case.
SDL_LogWarn(SDL_LOG_CATEGORY_APPLICATION,
"No matching refresh rate found; using desktop mode");
bestMode = desktopMode;
}
SDL_LogInfo(SDL_LOG_CATEGORY_APPLICATION,
"Chosen best display mode: %dx%dx%d",
bestMode.w, bestMode.h, bestMode.refresh_rate);
SDL_SetWindowDisplayMode(m_Window, &bestMode);
}
void Session::toggleFullscreen()