SDL2 implementation of the window backend interface. More...

#include <sdl2_window_backend.h>

Inheritance diagram for yaze::platform::SDL2WindowBackend:

Collaboration diagram for yaze::platform::SDL2WindowBackend:

Public Member Functions
	SDL2WindowBackend ()=default

	~SDL2WindowBackend () override

absl::Status	Initialize (const WindowConfig &config) override
	Initialize the window backend with configuration.

absl::Status	Shutdown () override
	Shutdown the window backend and release resources.

bool	IsInitialized () const override
	Check if the backend is initialized.

bool	PollEvent (WindowEvent &out_event) override
	Poll and process pending events.

void	ProcessNativeEvent (void *native_event) override
	Process a native SDL event (for ImGui integration)

WindowStatus	GetStatus () const override
	Get current window status.

bool	IsActive () const override
	Check if window is still active (not closed)

void	SetActive (bool active) override
	Set window active state.

void	GetSize (int width, int height) const override
	Get window dimensions.

void	SetSize (int width, int height) override
	Set window dimensions.

std::string	GetTitle () const override
	Get window title.

void	SetTitle (const std::string &title) override
	Set window title.

bool	InitializeRenderer (gfx::IRenderer *renderer) override
	Initialize renderer for this window.

SDL_Window *	GetNativeWindow () override
	Get the underlying SDL_Window pointer for ImGui integration.

absl::Status	InitializeImGui (gfx::IRenderer *renderer) override
	Initialize ImGui backends for this window/renderer combo.

void	ShutdownImGui () override
	Shutdown ImGui backends.

void	NewImGuiFrame () override
	Start a new ImGui frame.

void	RenderImGui (gfx::IRenderer *renderer) override
	Render ImGui draw data (and viewports if enabled)

uint32_t	GetAudioDevice () const override
	Get audio device ID (for legacy audio buffer management)

std::shared_ptr< int16_t >	GetAudioBuffer () const override
	Get audio buffer (for legacy audio management)

std::string	GetBackendName () const override
	Get backend name for debugging/logging.

int	GetSDLVersion () const override
	Get SDL version being used.

Public Member Functions inherited from yaze::platform::IWindowBackend
virtual	~IWindowBackend ()=default

Private Member Functions
WindowEvent	ConvertSDL2Event (const SDL_Event &sdl_event)

void	UpdateModifierState ()

Private Attributes
std::unique_ptr< SDL_Window, util::SDL_Deleter >	window_

bool	initialized_ = false

bool	active_ = true

bool	is_resizing_ = false

bool	imgui_initialized_ = false

bool	key_shift_ = false

bool	key_ctrl_ = false

bool	key_alt_ = false

bool	key_super_ = false

SDL_AudioDeviceID	audio_device_ = 0

std::shared_ptr< int16_t >	audio_buffer_

Detailed Description

SDL2 implementation of the window backend interface.

Wraps SDL2 window management, event handling, and ImGui integration for the main YAZE application window.

Definition at line 24 of file sdl2_window_backend.h.

Constructor & Destructor Documentation

◆ SDL2WindowBackend()

yaze::platform::SDL2WindowBackend::SDL2WindowBackend ( )

default

◆ ~SDL2WindowBackend()

yaze::platform::SDL2WindowBackend::~SDL2WindowBackend ( )

override

Definition at line 31 of file sdl2_window_backend.cc.

References initialized_, and Shutdown().

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Member Function Documentation

◆ Initialize()

absl::Status yaze::platform::SDL2WindowBackend::Initialize ( const WindowConfig & config )

overridevirtual

Initialize the window backend with configuration.

Parameters

config Window configuration parameters

Returns: Status indicating success or failure

Implements yaze::platform::IWindowBackend.

Definition at line 37 of file sdl2_window_backend.cc.

References active_, audio_buffer_, yaze::platform::WindowConfig::display_scale, yaze::platform::WindowConfig::fullscreen, yaze::platform::WindowConfig::height, yaze::platform::WindowConfig::high_dpi, initialized_, LOG_INFO, LOG_WARN, yaze::platform::WindowConfig::maximized, yaze::platform::WindowConfig::resizable, RETURN_IF_ERROR, Shutdown(), yaze::platform::WindowConfig::title, yaze::platform::WindowConfig::width, and window_.

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◆ Shutdown()

absl::Status yaze::platform::SDL2WindowBackend::Shutdown ( )

overridevirtual

Shutdown the window backend and release resources.

Returns: Status indicating success or failure

Implements yaze::platform::IWindowBackend.

Definition at line 112 of file sdl2_window_backend.cc.

References audio_device_, yaze::gfx::Arena::Get(), imgui_initialized_, initialized_, LOG_INFO, yaze::gfx::Arena::Shutdown(), ShutdownImGui(), and window_.

Referenced by Initialize(), and ~SDL2WindowBackend().

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◆ IsInitialized()

bool yaze::platform::SDL2WindowBackend::IsInitialized ( ) const

inlineoverridevirtual

Check if the backend is initialized.

Implements yaze::platform::IWindowBackend.

Definition at line 35 of file sdl2_window_backend.h.

References initialized_.

◆ PollEvent()

bool yaze::platform::SDL2WindowBackend::PollEvent ( WindowEvent & out_event )

overridevirtual

Poll and process pending events.

Parameters

out_event Output parameter for the next event

Returns: True if an event was available, false otherwise

Implements yaze::platform::IWindowBackend.

Definition at line 148 of file sdl2_window_backend.cc.

References ConvertSDL2Event(), yaze::platform::WindowEvent::has_native_event, imgui_initialized_, and yaze::platform::WindowEvent::native_event.

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◆ ProcessNativeEvent()

void yaze::platform::SDL2WindowBackend::ProcessNativeEvent ( void * native_event )

overridevirtual

Process a native SDL event (for ImGui integration)

Parameters

native_event Pointer to native SDL_Event

Implements yaze::platform::IWindowBackend.

Definition at line 165 of file sdl2_window_backend.cc.

References imgui_initialized_.

◆ GetStatus()

WindowStatus yaze::platform::SDL2WindowBackend::GetStatus ( ) const

overridevirtual

Get current window status.

Implements yaze::platform::IWindowBackend.

Definition at line 309 of file sdl2_window_backend.cc.

References active_, yaze::platform::WindowStatus::height, yaze::platform::WindowStatus::is_active, yaze::platform::WindowStatus::is_focused, yaze::platform::WindowStatus::is_fullscreen, yaze::platform::WindowStatus::is_maximized, yaze::platform::WindowStatus::is_minimized, yaze::platform::WindowStatus::is_resizing, is_resizing_, yaze::platform::WindowStatus::width, and window_.

◆ IsActive()

bool yaze::platform::SDL2WindowBackend::IsActive ( ) const

inlineoverridevirtual

Check if window is still active (not closed)

Implements yaze::platform::IWindowBackend.

Definition at line 41 of file sdl2_window_backend.h.

References active_.

◆ SetActive()

void yaze::platform::SDL2WindowBackend::SetActive ( bool active )

inlineoverridevirtual

Set window active state.

Implements yaze::platform::IWindowBackend.

Definition at line 42 of file sdl2_window_backend.h.

References active_.

◆ GetSize()

void yaze::platform::SDL2WindowBackend::GetSize	(	int *	width,
		int *	height ) const

overridevirtual

Get window dimensions.

Implements yaze::platform::IWindowBackend.

Definition at line 328 of file sdl2_window_backend.cc.

References window_.

◆ SetSize()

void yaze::platform::SDL2WindowBackend::SetSize	(	int	width,
		int	height )

overridevirtual

Set window dimensions.

Implements yaze::platform::IWindowBackend.

Definition at line 337 of file sdl2_window_backend.cc.

References window_.

◆ GetTitle()

std::string yaze::platform::SDL2WindowBackend::GetTitle ( ) const

overridevirtual

Get window title.

Implements yaze::platform::IWindowBackend.

Definition at line 343 of file sdl2_window_backend.cc.

References window_.

◆ SetTitle()

void yaze::platform::SDL2WindowBackend::SetTitle ( const std::string & title )

overridevirtual

Set window title.

Implements yaze::platform::IWindowBackend.

Definition at line 351 of file sdl2_window_backend.cc.

References window_.

◆ InitializeRenderer()

bool yaze::platform::SDL2WindowBackend::InitializeRenderer ( gfx::IRenderer * renderer )

overridevirtual

Initialize renderer for this window.

Parameters

renderer The renderer to initialize

Returns: True if successful

Implements yaze::platform::IWindowBackend.

Definition at line 357 of file sdl2_window_backend.cc.

References yaze::gfx::IRenderer::GetBackendRenderer(), yaze::gfx::IRenderer::Initialize(), and window_.

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◆ GetNativeWindow()

SDL_Window * yaze::platform::SDL2WindowBackend::GetNativeWindow ( )

inlineoverridevirtual

Get the underlying SDL_Window pointer for ImGui integration.

Returns: Native window handle (SDL_Window*)

Implements yaze::platform::IWindowBackend.

Definition at line 50 of file sdl2_window_backend.h.

References window_.

◆ InitializeImGui()

absl::Status yaze::platform::SDL2WindowBackend::InitializeImGui ( gfx::IRenderer * renderer )

overridevirtual

Initialize ImGui backends for this window/renderer combo.

Parameters

renderer The renderer (for backend-specific init)

Returns: Status indicating success or failure

Implements yaze::platform::IWindowBackend.

Definition at line 370 of file sdl2_window_backend.cc.

References yaze::gui::ColorsYaze(), yaze::gfx::IRenderer::GetBackendRenderer(), imgui_initialized_, yaze::LoadPackageFonts(), LOG_INFO, RETURN_IF_ERROR, and window_.

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◆ ShutdownImGui()

void yaze::platform::SDL2WindowBackend::ShutdownImGui ( )

overridevirtual

Shutdown ImGui backends.

Implements yaze::platform::IWindowBackend.

Definition at line 423 of file sdl2_window_backend.cc.

References imgui_initialized_, and LOG_INFO.

Referenced by Shutdown().

◆ NewImGuiFrame()

void yaze::platform::SDL2WindowBackend::NewImGuiFrame ( )

overridevirtual

Start a new ImGui frame.

Implements yaze::platform::IWindowBackend.

Definition at line 438 of file sdl2_window_backend.cc.

References imgui_initialized_.

◆ RenderImGui()

void yaze::platform::SDL2WindowBackend::RenderImGui ( gfx::IRenderer * renderer )

overridevirtual

Render ImGui draw data (and viewports if enabled)

Parameters

renderer The renderer to use for drawing (needed to get backend renderer)

Implements yaze::platform::IWindowBackend.

Definition at line 450 of file sdl2_window_backend.cc.

References yaze::gfx::IRenderer::GetBackendRenderer(), and imgui_initialized_.

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◆ GetAudioDevice()

uint32_t yaze::platform::SDL2WindowBackend::GetAudioDevice ( ) const

inlineoverridevirtual

Get audio device ID (for legacy audio buffer management)

Implements yaze::platform::IWindowBackend.

Definition at line 57 of file sdl2_window_backend.h.

References audio_device_.

◆ GetAudioBuffer()

std::shared_ptr< int16_t > yaze::platform::SDL2WindowBackend::GetAudioBuffer ( ) const

inlineoverridevirtual

Get audio buffer (for legacy audio management)

Implements yaze::platform::IWindowBackend.

Definition at line 58 of file sdl2_window_backend.h.

References audio_buffer_.

◆ GetBackendName()

std::string yaze::platform::SDL2WindowBackend::GetBackendName ( ) const

inlineoverridevirtual

Get backend name for debugging/logging.

Implements yaze::platform::IWindowBackend.

Definition at line 62 of file sdl2_window_backend.h.

◆ GetSDLVersion()

int yaze::platform::SDL2WindowBackend::GetSDLVersion ( ) const

inlineoverridevirtual

Get SDL version being used.

Implements yaze::platform::IWindowBackend.

Definition at line 63 of file sdl2_window_backend.h.

◆ ConvertSDL2Event()

WindowEvent yaze::platform::SDL2WindowBackend::ConvertSDL2Event ( const SDL_Event & sdl_event )

private

Definition at line 171 of file sdl2_window_backend.cc.

References active_, yaze::platform::Close, yaze::platform::DropFile, yaze::platform::Exposed, yaze::platform::FocusGained, yaze::platform::FocusLost, g_window_is_resizing, yaze::platform::Hidden, is_resizing_, key_alt_, key_ctrl_, key_shift_, key_super_, yaze::platform::KeyDown, yaze::platform::KeyUp, yaze::platform::Maximized, yaze::platform::Minimized, yaze::platform::MouseButtonDown, yaze::platform::MouseButtonUp, yaze::platform::MouseMotion, yaze::platform::MouseWheel, yaze::platform::None, yaze::platform::Quit, yaze::platform::Resize, yaze::platform::Restored, yaze::platform::Shown, yaze::platform::WindowEvent::type, and UpdateModifierState().

Referenced by PollEvent().

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◆ UpdateModifierState()

void yaze::platform::SDL2WindowBackend::UpdateModifierState ( )

private

Definition at line 301 of file sdl2_window_backend.cc.

References key_alt_, key_ctrl_, key_shift_, and key_super_.

Referenced by ConvertSDL2Event().

Member Data Documentation

◆ window_

std::unique_ptr<SDL_Window, util::SDL_Deleter> yaze::platform::SDL2WindowBackend::window_

private

Definition at line 72 of file sdl2_window_backend.h.

Referenced by GetNativeWindow(), GetSize(), GetStatus(), GetTitle(), Initialize(), InitializeImGui(), InitializeRenderer(), SetSize(), SetTitle(), and Shutdown().

◆ initialized_

bool yaze::platform::SDL2WindowBackend::initialized_ = false

private

Definition at line 73 of file sdl2_window_backend.h.

Referenced by Initialize(), IsInitialized(), Shutdown(), and ~SDL2WindowBackend().

◆ active_

bool yaze::platform::SDL2WindowBackend::active_ = true

private

Definition at line 74 of file sdl2_window_backend.h.

Referenced by ConvertSDL2Event(), GetStatus(), Initialize(), IsActive(), and SetActive().

◆ is_resizing_

bool yaze::platform::SDL2WindowBackend::is_resizing_ = false

private

Definition at line 75 of file sdl2_window_backend.h.

Referenced by ConvertSDL2Event(), and GetStatus().

◆ imgui_initialized_

bool yaze::platform::SDL2WindowBackend::imgui_initialized_ = false

private

Definition at line 76 of file sdl2_window_backend.h.

Referenced by InitializeImGui(), NewImGuiFrame(), PollEvent(), ProcessNativeEvent(), RenderImGui(), Shutdown(), and ShutdownImGui().

◆ key_shift_

bool yaze::platform::SDL2WindowBackend::key_shift_ = false

private

Definition at line 79 of file sdl2_window_backend.h.

Referenced by ConvertSDL2Event(), and UpdateModifierState().

◆ key_ctrl_

bool yaze::platform::SDL2WindowBackend::key_ctrl_ = false

private

Definition at line 80 of file sdl2_window_backend.h.

Referenced by ConvertSDL2Event(), and UpdateModifierState().

◆ key_alt_

bool yaze::platform::SDL2WindowBackend::key_alt_ = false

private

Definition at line 81 of file sdl2_window_backend.h.

Referenced by ConvertSDL2Event(), and UpdateModifierState().

◆ key_super_

bool yaze::platform::SDL2WindowBackend::key_super_ = false

private

Definition at line 82 of file sdl2_window_backend.h.

Referenced by ConvertSDL2Event(), and UpdateModifierState().

◆ audio_device_

SDL_AudioDeviceID yaze::platform::SDL2WindowBackend::audio_device_ = 0

private

Definition at line 85 of file sdl2_window_backend.h.

Referenced by GetAudioDevice(), and Shutdown().

◆ audio_buffer_

std::shared_ptr<int16_t> yaze::platform::SDL2WindowBackend::audio_buffer_

private

Definition at line 86 of file sdl2_window_backend.h.

Referenced by GetAudioBuffer(), and Initialize().

The documentation for this class was generated from the following files:

src/app/platform/sdl2_window_backend.h
src/app/platform/sdl2_window_backend.cc

	yaze 0.3.2 Link to the Past ROM Editor

Public Member Functions

Private Member Functions

Private Attributes

Detailed Description

Constructor & Destructor Documentation

◆ SDL2WindowBackend()

◆ ~SDL2WindowBackend()

Member Function Documentation

◆ Initialize()

◆ Shutdown()

◆ IsInitialized()

◆ PollEvent()

◆ ProcessNativeEvent()

◆ GetStatus()

◆ IsActive()

◆ SetActive()

◆ GetSize()

◆ SetSize()

◆ GetTitle()

◆ SetTitle()

◆ InitializeRenderer()

◆ GetNativeWindow()

◆ InitializeImGui()

◆ ShutdownImGui()

◆ NewImGuiFrame()

◆ RenderImGui()

◆ GetAudioDevice()

◆ GetAudioBuffer()

◆ GetBackendName()

◆ GetSDLVersion()

◆ ConvertSDL2Event()

◆ UpdateModifierState()

Member Data Documentation

◆ window_

◆ initialized_

◆ active_

◆ is_resizing_

◆ imgui_initialized_

◆ key_shift_

◆ key_ctrl_

◆ key_alt_

◆ key_super_

◆ audio_device_

◆ audio_buffer_