sdl_internal.h File Reference

Internal header for SDL XR system. More...

#include "xrt/xrt_system.h"
#include "xrt/xrt_device.h"
#include "xrt/xrt_instance.h"
#include "xrt/xrt_tracking.h"
#include "xrt/xrt_compositor.h"
#include "util/u_pacing.h"
#include "util/u_logging.h"
#include "util/comp_base.h"
#include "util/comp_swapchain.h"
#include "SDL2/SDL.h"
#include "ogl/ogl_api.h"

Include dependency graph for sdl_internal.h:

Go to the source code of this file.

Data Structures
struct	sdl_swapchain
	Sub-class of comp_swapchain, used to do OpenGL rendering. More...
struct	sdl_comp_frame
	Tracking frame state. More...
struct	sdl_compositor
	Split out for convenience. More...
struct	sdl_program
	C base class for the SDL program. More...

Macros
#define	CHECK_GL()
	Check for OpenGL errors, context needs to be current. More...

Functions
static struct sdl_program *	from_xinst (struct xrt_instance *xinst)
static struct sdl_program *	from_xsysd (struct xrt_system_devices *xsysd)
static struct sdl_program *	from_xdev (struct xrt_device *xdev)
static struct sdl_program *	from_comp (struct xrt_compositor *xc)
static void	sdl_make_current (struct sdl_program *sp)
	Makes the OpenGL context current in this thread, takes lock. More...
static void	sdl_make_uncurrent (struct sdl_program *sp)
	Unmakes the any OpenGL context current in this thread, releases the lock. More...
void	sdl_device_init (struct sdl_program *sp)
	Init the xrt_device sub struct. More...
xrt_result_t	sdl_swapchain_create (struct xrt_compositor *xc, const struct xrt_swapchain_create_info *info, struct xrt_swapchain **out_xsc)
	Implementation of xrt_compositor::create_swapchain. More...
xrt_result_t	sdl_swapchain_import (struct xrt_compositor *xc, const struct xrt_swapchain_create_info *info, struct xrt_image_native *native_images, uint32_t native_image_count, struct xrt_swapchain **out_xsc)
	Implementation of xrt_compositor::import_swapchain. More...
void	sdl_compositor_init (struct sdl_program *sp)
	Initializes the compositor part of the SDL program. More...
xrt_result_t	sdl_compositor_create_system (struct sdl_program *sp, struct xrt_system_compositor **out_xsysc)
	Creates the system compositor that wraps the native compositor. More...
void	sdl_system_init (struct sdl_program *sp)
	Init the xrt_system (and u_system) struct. More...
void	sdl_system_devices_init (struct sdl_program *sp)
	Init the xrt_system_devices sub struct. More...
void	sdl_instance_init (struct sdl_program *sp)
	Init the xrt_instance sub struct. More...
struct sdl_program *	sdl_program_plus_create (void)
	Create the SDL program. More...
void	sdl_program_plus_render (struct sdl_program_plus *spp)
	Render a frame, called by the compositor when layers have been committed. More...
void	sdl_program_plus_destroy (struct sdl_program_plus *spp)
	Destroy the SDL program. More...

Detailed Description

Internal header for SDL XR system.

Author

Jakob Bornecrantz jakob.nosp@m.@col.nosp@m.labor.nosp@m.a.co.nosp@m.m

Macro Definition Documentation

CHECK_GL

#define CHECK_GL

(

)

Value:

        do {                                                                                                           \
                GLint err = glGetError();                                                                              \
                if (err != 0) {                                                                                        \
                        U_LOG_RAW("%s:%u: error: 0x%04x", __func__, __LINE__, err);                                    \
                }                                                                                                      \
        } while (false)

Check for OpenGL errors, context needs to be current.

Function Documentation

sdl_compositor_create_system()

xrt_result_t sdl_compositor_create_system	(	struct sdl_program *	sp,
		struct xrt_system_compositor **	out_xsysc
	)

Creates the system compositor that wraps the native compositor.

sdl_compositor_init()

void sdl_compositor_init

(

struct sdl_program *

sp

)

Initializes the compositor part of the SDL program.

References sdl_program::xdev_base.

sdl_device_init()

void sdl_device_init

(

struct sdl_program *

sp

)

Init the xrt_device sub struct.

In sdl_device.c

References ARRAY_SIZE, xrt_device::hmd, sdl_program::hmd, xrt_device::input_count, xrt_device::inputs, sdl_program::inputs, xrt_device::name, sdl_program::origin, xrt_device::tracking_origin, and sdl_program::xdev_base.

sdl_instance_init()

void sdl_instance_init

(

struct sdl_program *

sp

)

Init the xrt_instance sub struct.

References xrt_instance::create_system, and sdl_program::xinst_base.

sdl_make_current()

static void sdl_make_current ( struct sdl_program *  sp )

inlinestatic

Makes the OpenGL context current in this thread, takes lock.

References sdl_program::ctx, sdl_program::current_mutex, os_mutex::os_mutex_lock(), and sdl_program::win.

Referenced by sdl_program_plus_render().

sdl_make_uncurrent()

static void sdl_make_uncurrent ( struct sdl_program *  sp )

inlinestatic

Unmakes the any OpenGL context current in this thread, releases the lock.

References sdl_program::current_mutex, and os_mutex::os_mutex_unlock().

sdl_program_plus_create()

struct sdl_program * sdl_program_plus_create

(

void

)

Create the SDL program.

References sdl_program::current_mutex, sdl_program::log_level, os_mutex::os_mutex_init(), sdl_program::pose, sdl_program::spp, U_LOGGING_INFO, and xrt_pose::XRT_POSE_IDENTITY.

sdl_program_plus_destroy()

void sdl_program_plus_destroy

(

struct sdl_program_plus *

spp

)

Destroy the SDL program.

References sdl_program::current_mutex, os_mutex::os_mutex_destroy(), and sdl_program::spp.

sdl_program_plus_render()

void sdl_program_plus_render

(

struct sdl_program_plus *

spp

)

Render a frame, called by the compositor when layers have been committed.

References sdl_compositor::base, sdl_program::c, comp_layer::data, comp_base::layer_accum, comp_layer_accum::layer_count, comp_layer_accum::layers, sdl_make_current(), sdl_program::spp, and xrt_layer_data::type.

sdl_swapchain_create()

xrt_result_t sdl_swapchain_create	(	struct xrt_compositor *	xc,
		const struct xrt_swapchain_create_info *	info,
		struct xrt_swapchain **	out_xsc
	)

Implementation of xrt_compositor::create_swapchain.

sdl_swapchain_import()

xrt_result_t sdl_swapchain_import	(	struct xrt_compositor *	xc,
		const struct xrt_swapchain_create_info *	info,
		struct xrt_image_native *	native_images,
		uint32_t	native_image_count,
		struct xrt_swapchain **	out_xsc
	)

Implementation of xrt_compositor::import_swapchain.

sdl_system_devices_init()

void sdl_system_devices_init

(

struct sdl_program *

sp

)

Init the xrt_system_devices sub struct.

References xrt_system_devices::destroy, and sdl_program::xsysd_base.

sdl_system_init()

void sdl_system_init

(

struct sdl_program *

sp

)

Init the xrt_system (and u_system) struct.

References u_system::u_system_create(), and sdl_program::usys.