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Fix handling of undefined and non-matching refresh rate

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This commit is contained in:
Cameron Gutman 2018-09-06 19:16:59 -07:00
parent 587d783955
commit 4dba74e2f9
2 changed files with 19 additions and 2 deletions
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10
app/streaming/session.cpp
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@ -637,6 +637,16 @@ void Session::updateOptimalWindowDisplayMode()
}
}
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);

11
app/streaming/video/ffmpeg-renderers/pacer/pacer.cpp
View file

@ -1,5 +1,4 @@
#include "pacer.h"
#include "streaming/streamutils.h"
#include "nullthreadedvsyncsource.h"
@ -144,13 +143,21 @@ bool Pacer::initialize(SDL_Window* window, int maxVideoFps, bool enableVsync)
}
else {
// Use the current display mode for windowed and borderless
if (!StreamUtils::getRealDesktopMode(displayIndex, &mode)) {
if (SDL_GetCurrentDisplayMode(displayIndex, &mode) != 0) {
SDL_LogError(SDL_LOG_CATEGORY_APPLICATION,
"SDL_GetCurrentDisplayMode() failed: %s",
SDL_GetError());
return false;
}
}
// May be zero if undefined
m_DisplayFps = mode.refresh_rate;
if (m_DisplayFps == 0) {
SDL_LogWarn(SDL_LOG_CATEGORY_APPLICATION,
"Refresh rate unknown; assuming 60 Hz");
m_DisplayFps = 60;
}
if (m_EnableVsync) {
SDL_LogInfo(SDL_LOG_CATEGORY_APPLICATION,