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Support setting vsync in app::app

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This commit is contained in:
Nikita Lisitsa 2020-10-03 13:10:09 +03:00
parent 90165b9b59
commit fed4da3213
2 changed files with 19 additions and 1 deletions
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3
libs/app/include/psemek/app/app.hpp
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@ -30,8 +30,9 @@ namespace psemek::app
scene * set_scene(scene * s);
void show_cursor(bool show);
float time() const;
void vsync(bool on);
float time() const;
int width() const;
int height() const;

17
libs/app/source/app.cpp
View file

@ -242,6 +242,23 @@ namespace psemek::app
return std::chrono::duration_cast<std::chrono::duration<float>>(clock::now() - impl().start_time).count();
}
void app::vsync(bool on)
{
if (on)
{
// try adaptive vsync
if (SDL_GL_SetSwapInterval(-1) != 0)
{
// failed, try usual vsync then
SDL_GL_SetSwapInterval(1);
}
}
else
{
SDL_GL_SetSwapInterval(0);
}
}
int app::width() const
{
return impl().width;