Graphics, Audio, Multimedia and Processing Framework. More...

Classes
struct	gamp::Attachable
	An attachable object. More...

class	gamp::GampEnv
	Singleton runtime environment properties. More...

class	gamp::GampException

class	gamp::StringHashMapWrap< Value_type, Novalue_type, no_value >

Typedefs
typedef std::shared_ptr< Attachable >	gamp::AttachableRef

typedef uintptr_t	gamp::handle_t
	A native handle type, big enough to store a pointer.

using	gamp::StringAttachables = StringHashMapWrap<AttachableRef, std::nullptr_t, nullptr>

template<typename K, typename V>
using	gamp::StringlikeHashMap = std::unordered_map<K, V, jau::string_hash, std::equal_to<>>

Functions
std::string	gamp::asset_dir () noexcept

template<typename T, typename U>
U	gamp::castOrThrow (T has)

template<typename T, typename U>
bool	gamp::checkOverflow (T has)

int	gamp::expected_fps () noexcept
	Returns expected fps, either gpu_forced_fps() if set, otherwise monitor_fps().

jau::fraction_timespec	gamp::expected_framedur () noexcept
	Returns the expected frame duration in [s], i.e.

jau::fraction_timespec	gamp::getElapsedMonotonicTime () noexcept
	Returns the elapsed monotonic time since `init_gfx_subsystem`, synchronized with the gfx subsystem timer.

float	gamp::gpu_avg_fps () noexcept
	Returns the measured gpu fps each 5s, starting with monitor_fps()

const jau::fraction_timespec &	gamp::gpu_avg_framedur () noexcept
	Returns the measured gpu frame duration in [s] each 5s, starting with 1/gpu_avg_fps()

int	gamp::gpu_forced_fps () noexcept
	Returns optional forced frames per seconds or -1 if unset, set via set_gpu_forced_fps().

size_t	gamp::handle_events () noexcept
	GFX Toolkit: Handle windowing and keyboard events.

bool	gamp::init_gfx_subsystem (const char *exe_path)
	GFX Toolkit: Initialize the subsystem once.

bool	gamp::is_gfx_subsystem_initialized () noexcept

std::string	gamp::lookup_and_register_asset_dir (const char exe_path, const char asset_file="fonts/freefont/FreeSansBold.ttf", const char *asset_install_subdir="gamp") noexcept

bool	gamp::mainloop_default () noexcept
	Performs the whole tasks for all created gamp::wt::Window instances.

void	gamp::mainloop_void () noexcept
	Calls mainloop_default(), but exits application if returning false.

int	gamp::monitor_fps () noexcept
	Monitor frames per seconds.

std::string	gamp::resolve_asset (const std::string &asset_file, bool lookup_direct=false) noexcept

void	gamp::set_gpu_forced_fps (int fps) noexcept
	Optional forced frames per seconds, pass to swap_gpu_buffer() by default.

void	gamp::shutdown () noexcept

void	gamp::swap_gpu_buffer (int fps) noexcept
	GFX Toolkit: Swap GPU back to front framebuffer of all windows using given fps, maintaining vertical monitor synchronization if possible.

template<typename T, typename U>
void	gamp::throwOnOverflow (T has)

Variables
const jau::util::VersionNumberString	gamp::VERSION

const char *	gamp::VERSION_API

const char *	gamp::VERSION_SHORT

Detailed Description

Graphics, Audio, Multimedia and Processing Framework.

Typedef Documentation

◆ handle_t

typedef uintptr_t gamp::handle_t

A native handle type, big enough to store a pointer.

Definition at line 47 of file GampTypes.hpp.

◆ AttachableRef

typedef std::shared_ptr<Attachable> gamp::AttachableRef

Definition at line 79 of file GampTypes.hpp.

◆ StringlikeHashMap

template<typename K, typename V>

using gamp::StringlikeHashMap = std::unordered_map<K, V, jau::string_hash, std::equal_to<>>

Definition at line 82 of file GampTypes.hpp.

◆ StringAttachables

using gamp::StringAttachables = StringHashMapWrap<AttachableRef, std::nullptr_t, nullptr>

Definition at line 147 of file GampTypes.hpp.

Function Documentation

◆ lookup_and_register_asset_dir()

std::string gamp::lookup_and_register_asset_dir	(	const char *	exe_path,
		const char *	asset_file = "fonts/freefont/FreeSansBold.ttf",
		const char *	asset_install_subdir = "gamp" )

noexcept

Definition at line 31 of file gamp.cpp.

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◆ asset_dir()

std::string gamp::asset_dir ( )

noexcept

Definition at line 35 of file gamp.cpp.

◆ resolve_asset()

std::string gamp::resolve_asset	(	const std::string &	asset_file,
		bool	lookup_direct = false )

noexcept

Definition at line 37 of file gamp.cpp.

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◆ getElapsedMonotonicTime()

jau::fraction_timespec gamp::getElapsedMonotonicTime ( )

noexcept

Returns the elapsed monotonic time since init_gfx_subsystem, synchronized with the gfx subsystem timer.

Definition at line 142 of file gamp_sdl2.cpp.

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◆ monitor_fps()

int gamp::monitor_fps ( )

noexcept

Monitor frames per seconds.

Definition at line 82 of file gamp_sdl2.cpp.

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◆ gpu_forced_fps()

int gamp::gpu_forced_fps ( )

noexcept

Returns optional forced frames per seconds or -1 if unset, set via set_gpu_forced_fps().

Passed to swap_gpu_buffer() by default.

Definition at line 84 of file gamp_sdl2.cpp.

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◆ set_gpu_forced_fps()

void gamp::set_gpu_forced_fps ( int fps )

noexcept

Optional forced frames per seconds, pass to swap_gpu_buffer() by default.

Definition at line 86 of file gamp_sdl2.cpp.

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◆ expected_fps()

int gamp::expected_fps ( )

inlinenoexcept

Returns expected fps, either gpu_forced_fps() if set, otherwise monitor_fps().

Definition at line 59 of file Gamp.hpp.

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◆ expected_framedur()

jau::fraction_timespec gamp::expected_framedur ( )

inlinenoexcept

Returns the expected frame duration in [s], i.e.

1/expected_fps()

Definition at line 61 of file Gamp.hpp.

◆ is_gfx_subsystem_initialized()

bool gamp::is_gfx_subsystem_initialized ( )

noexcept

Definition at line 146 of file gamp_sdl2.cpp.

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◆ init_gfx_subsystem()

bool gamp::init_gfx_subsystem ( const char * exe_path )

GFX Toolkit: Initialize the subsystem once.

Definition at line 150 of file gamp_sdl2.cpp.

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◆ swap_gpu_buffer()

void gamp::swap_gpu_buffer ( int fps )

noexcept

GFX Toolkit: Swap GPU back to front framebuffer of all windows using given fps, maintaining vertical monitor synchronization if possible.

fps <= 0 implies automatic fps.

Should not be called by user, instead use mainloop_default().

Parameters

fps	use gpu_forced_fps()

See also: mainloop_default()

Definition at line 357 of file gamp_sdl2.cpp.

◆ gpu_avg_fps()

float gamp::gpu_avg_fps ( )

noexcept

Returns the measured gpu fps each 5s, starting with monitor_fps()

Definition at line 361 of file gamp_sdl2.cpp.

◆ gpu_avg_framedur()

const jau::fraction_timespec & gamp::gpu_avg_framedur ( )

noexcept

Returns the measured gpu frame duration in [s] each 5s, starting with 1/gpu_avg_fps()

Definition at line 365 of file gamp_sdl2.cpp.

◆ mainloop_default()

bool gamp::mainloop_default ( )

noexcept

Performs the whole tasks for all created gamp::wt::Window instances.

handle events and propagates them to registered listener at each window
renders all gamp::wt::Window first
- calling each gamp::wt::Window::display() method, serving gamp::wt::RenderListener
swaps front/back buffer of all gamp::wt::Window instances
adjust timers for whole set

Returns: true signaling continuation, false to end the mainloop

See also: swap_gpu_buffer()

Definition at line 692 of file gamp_sdl2.cpp.

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◆ mainloop_void()

void gamp::mainloop_void ( )

noexcept

Calls mainloop_default(), but exits application if returning false.

Definition at line 713 of file gamp_sdl2.cpp.

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◆ shutdown()

void gamp::shutdown ( )

noexcept

Definition at line 724 of file gamp_sdl2.cpp.

◆ handle_events()

size_t gamp::handle_events ( )

noexcept

GFX Toolkit: Handle windowing and keyboard events.

Should be called until function returns false to process all buffered events.

Returns: number of events received

Definition at line 555 of file gamp_sdl2.cpp.

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◆ checkOverflow()

template<typename T, typename U>

bool gamp::checkOverflow ( T has )

inline

Definition at line 60 of file GampTypes.hpp.

◆ throwOnOverflow()

template<typename T, typename U>

void gamp::throwOnOverflow ( T has )

inline

Definition at line 64 of file GampTypes.hpp.

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◆ castOrThrow()

template<typename T, typename U>

U gamp::castOrThrow ( T has )

inline

Definition at line 70 of file GampTypes.hpp.

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Variable Documentation

◆ VERSION

const jau::util::VersionNumberString gamp::VERSION

extern

◆ VERSION_SHORT

const char* gamp::VERSION_SHORT

extern

◆ VERSION_API

const char* gamp::VERSION_API

extern

Classes

Typedefs

Functions

Variables

Detailed Description

Typedef Documentation

◆ handle_t

◆ AttachableRef

◆ StringlikeHashMap

◆ StringAttachables

Function Documentation

◆ lookup_and_register_asset_dir()

◆ asset_dir()

◆ resolve_asset()

◆ getElapsedMonotonicTime()

◆ monitor_fps()

◆ gpu_forced_fps()

◆ set_gpu_forced_fps()

◆ expected_fps()

◆ expected_framedur()

◆ is_gfx_subsystem_initialized()

◆ init_gfx_subsystem()

◆ swap_gpu_buffer()

◆ gpu_avg_fps()

◆ gpu_avg_framedur()

◆ mainloop_default()

◆ mainloop_void()

◆ shutdown()

◆ handle_events()

◆ checkOverflow()

◆ throwOnOverflow()

◆ castOrThrow()

Variable Documentation

◆ VERSION

◆ VERSION_SHORT

◆ VERSION_API