SwapBuffersSystem.ixx File

System that queues swap-buffer commands for shown and active windows. More...

Included Headers

#include <GLFW/glfw3.h> #include <cassert> #include <helios.engine.platform.window.concepts.IsWindowHandle> #include <helios.engine.platform.window.components> #include <helios.engine.platform.window.commands> #include <helios.ecs.components.Active> #include <helios.engine.runtime.messaging.command.concepts.IsCommandBufferLike> #include <helios.engine.runtime.messaging.command.NullCommandBuffer> #include <helios.engine.runtime.world> #include <helios.engine.runtime.world.tags.SystemRole> #include <helios.engine.runtime.world.UpdateContext>

Namespaces Index

namespace	helios
namespace	engine
namespace	platform
namespace	window
namespace	systems

Classes Index

class	SwapBuffersSystem<THandle, TCommandBuffer>
	Emits SwapBuffersCommand for each active and shown window. More...

Description

System that queues swap-buffer commands for shown and active windows.

File Listing

The file content with the documentation metadata removed is:

1

5module;

6

7#include <GLFW/glfw3.h>

8#include <cassert>

9

10export module helios.engine.platform.window.systems.SwapBuffersSystem;

11

12

13

14import helios.engine.runtime.world.UpdateContext;

15

16import helios.engine.runtime.world.tags.SystemRole;

17

18import helios.engine.runtime.world;

19import helios.engine.runtime.messaging.command.NullCommandBuffer;

20import helios.engine.runtime.messaging.command.concepts.IsCommandBufferLike;

21

22import helios.ecs.components.Active;

23

24import helios.engine.platform.window.commands;

25import helios.engine.platform.window.components;

26import helios.engine.platform.window.concepts.IsWindowHandle;

27

28using namespace helios::engine::runtime::world::tags;

29using namespace helios::engine::runtime::world;

30using namespace helios::engine::runtime::messaging::command;

31using namespace helios::engine::runtime::messaging::command::concepts;

32using namespace helios::engine::platform::window::components;

33using namespace helios::engine::platform::window::concepts;

34using namespace helios::engine::platform::window::commands;

35using namespace helios::ecs::components;

36export namespace helios::engine::platform::window::systems {

37

43 template<typename THandle, typename TCommandBuffer = NullCommandBuffer>

44 requires IsWindowHandle<THandle> && IsCommandBufferLike<TCommandBuffer>

45 class SwapBuffersSystem {

46

47 public:

48

49 using CommandBuffer_type = TCommandBuffer;

50

54 using EngineRoleTag = SystemRole;

55

61 void update(UpdateContext& updateContext, TCommandBuffer& cmdBuffer) noexcept {

62

63 for (auto [entity, wc, wsc, active]: updateContext.view<

64 THandle,

65 WindowComponent<THandle>, WindowShownComponent<THandle>, Active<THandle>

66 >().whereEnabled()) {

67

68 cmdBuffer.template add<SwapBuffersCommand<THandle>>(entity.handle());

69 }

70

71 }

72

73 };

74

75

76

77}

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