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abstract pause logic and interaction with vsync

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This commit is contained in:
Matthew Berry 2021-07-21 08:47:39 -07:00
parent e9a403fcf6
commit bf1154945b
1 changed files with 14 additions and 12 deletions
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26
src/crab/common/frontend/sdl_opengl_imgui_frontend.cr
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@ -47,7 +47,7 @@ class SDLOpenGLImGuiFrontend < Frontend
LibGL.use_program(@shader_programs[@controller.class])
@opengl_info = OpenGLInfo.new
@io = setup_imgui
LibSDL.gl_set_swap_interval(1) if stubbed?
pause(true) if stubbed?
@file_explorer = ImGui::FileExplorer.new
@keybindings = ImGui::Keybindings.new
@ -67,6 +67,13 @@ class SDLOpenGLImGuiFrontend < Frontend
end
end
def pause(b : Bool) : Nil
if @pause != b
@pause = b
LibSDL.gl_set_swap_interval(@pause.to_unsafe)
end
end
private def handle_file_selection : Nil
if selection = @file_explorer.selection
file, symbol = selection
@ -95,9 +102,7 @@ class SDLOpenGLImGuiFrontend < Frontend
LibGL.viewport(0, 0, @window.width, @window.height)
LibGL.use_program(@shader_programs[@controller.class])
LibSDL.gl_set_swap_interval(0)
@enable_overlay = false
@pause = false
pause(false)
end
private def load_new_bios(bios : String) : Nil
@ -125,10 +130,7 @@ class SDLOpenGLImGuiFrontend < Frontend
elsif event.sym == LibSDL::Keycode::Q && event.mod.includes?(LibSDL::Keymod::LCTRL)
exit
elsif event.sym == LibSDL::Keycode::P && event.mod.includes?(LibSDL::Keymod::LCTRL)
unless event.pressed? # pause on key release
@pause = !@pause
LibSDL.gl_set_swap_interval(@pause.to_unsafe)
end
pause(!@pause) unless event.pressed? # toggle pause on key release
end
when SDL::Event::JoyHat,
SDL::Event::JoyButton then @controller.handle_controller_event(event)
@ -191,12 +193,12 @@ class SDLOpenGLImGuiFrontend < Frontend
end
if ImGui.begin_menu "Emulation"
previously_paused = @pause
pause = @pause
ImGui.menu_item "Pause", "Ctrl+P", pointerof(@pause)
@controller.toggle_sync if ImGui.menu_item "Audio Sync", selected: @controller.sync?, enabled: !stubbed?
ImGui.menu_item "Pause", "Ctrl+P", pointerof(pause)
@controller.toggle_sync if ImGui.menu_item "Audio Sync", "Tab", @controller.sync?, !stubbed?
LibSDL.gl_set_swap_interval(@pause.to_unsafe) if previously_paused ^ @pause
pause(pause)
ImGui.end_menu
end