nviz/render.c File Reference

Nviz library – GLX context manipulation. More...

#include <grass/glocale.h>
#include <grass/nviz.h>

Include dependency graph for nviz/render.c:

Go to the source code of this file.

Functions
struct render_window *	Nviz_new_render_window (void)
	Allocate memory for render window. More...
void	Nviz_init_render_window (struct render_window *rwin)
	Initialize render window. More...
void	Nviz_destroy_render_window (struct render_window *rwin)
	Free render window. More...
int	Nviz_create_render_window (struct render_window *rwin, void *display UNUSED, int width, int height)
	Create render window. More...
int	Nviz_make_current_render_window (const struct render_window *rwin)
	Make window current for rendering. More...

Detailed Description

Nviz library – GLX context manipulation.

Based on visualization/nviz/src/togl.c

(C) 2008, 2010, 2018 by the GRASS Development Team This program is free software under the GNU General Public License (>=v2). Read the file COPYING that comes with GRASS for details.

Author

Updated/modified by Martin Landa <landa.martin gmail.com> (Google SoC 2008/2010)

Support for framebuffer objects by Huidae Cho <grass4u gmail.com> (July 2018)

Definition in file nviz/render.c.

Function Documentation

Nviz_create_render_window()

int Nviz_create_render_window	(	struct render_window *	rwin,
		void *display	UNUSED,
		int	width,
		int	height
	)

Create render window.

Parameters

rwin	pointer to render_window struct
display	display instance (NULL for offscreen) [unused]
width	window width
height	window height

Returns

0 on success

-1 on error

Definition at line 157 of file nviz/render.c.

Nviz_destroy_render_window()

void Nviz_destroy_render_window

(

struct render_window *

rwin

)

Free render window.

Parameters

win	pointer to render_window struct

Definition at line 123 of file nviz/render.c.

References render_window::contextId, render_window::displayId, G_free(), render_window::pixmap, and render_window::windowId.

Nviz_init_render_window()

void Nviz_init_render_window

(

struct render_window *

rwin

)

Initialize render window.

Parameters

win	pointer to render_window struct

Definition at line 94 of file nviz/render.c.

References render_window::contextId, render_window::displayId, render_window::height, NULL, render_window::pixmap, render_window::width, and render_window::windowId.

Nviz_make_current_render_window()

int Nviz_make_current_render_window

(

const struct render_window *

rwin

)

Make window current for rendering.

Parameters

win	pointer to render_window struct

Returns

1 on success

0 on failure

Definition at line 325 of file nviz/render.c.

References _, render_window::contextId, render_window::displayId, G_warning(), render_window::height, render_window::width, and render_window::windowId.

Nviz_new_render_window()

struct render_window* Nviz_new_render_window

(

void

)

Allocate memory for render window.

Returns

pointer to render_window struct

NULL on failure

Definition at line 79 of file nviz/render.c.

References G_malloc.