OGSF library - primitive drawing functions (lower level functions) More...

#include <stdlib.h>
#include <string.h>
#include <grass/config.h>
#include <grass/gis.h>
#include <grass/ogsf.h>
#include <grass/glocale.h>

Include dependency graph for gsd_prim.c:

Go to the source code of this file.

Macros
#define	USE_GL_NORMALIZE

#define	RED_MASK 0x000000FF

#define	GRN_MASK 0x0000FF00

#define	BLU_MASK 0x00FF0000

#define	ALP_MASK 0xFF000000

#define	INT_TO_RED(i, r) (r = (i & RED_MASK))

#define	INT_TO_GRN(i, g) (g = (i & GRN_MASK) >> 8)

#define	INT_TO_BLU(i, b) (b = (i & BLU_MASK) >> 16)

#define	INT_TO_ALP(i, a) (a = (i & ALP_MASK) >> 24)

#define	MAX_OBJS 64

#define	border 15

Functions
void	gsd_flush (void)
	Mostly for flushing drawing commands across a network.

void	gsd_colormode (int cm)
	Set color mode.

void	show_colormode (void)
	Print color mode to stderr.

void	gsd_circ (float x, float y, float rad)
	ADD.

void	gsd_disc (float x, float y, float z, float rad)
	ADD.

void	gsd_sphere (float *center, float siz)
	ADD.

void	gsd_zwritemask (unsigned long n)
	Write out z-mask.

void	gsd_backface (int n)
	ADD.

void	gsd_linewidth (short n)
	Set width of rasterized lines.

void	gsd_bgnqstrip (void)
	ADD.

void	gsd_endqstrip (void)
	ADD.

void	gsd_bgntmesh (void)
	ADD.

void	gsd_endtmesh (void)
	ADD.

void	gsd_bgntstrip (void)
	ADD.

void	gsd_endtstrip (void)
	ADD.

void	gsd_bgntfan (void)
	ADD.

void	gsd_endtfan (void)
	ADD.

void	gsd_swaptmesh (void)
	ADD.

void	gsd_bgnpolygon (void)
	Delimit the vertices of a primitive or a group of like primitives.

void	gsd_endpolygon (void)
	Delimit the vertices of a primitive or a group of like primitives.

void	gsd_bgnline (void)
	Begin line.

void	gsd_endline (void)
	End line.

void	gsd_shademodel (int shade)
	Set shaded model.

int	gsd_getshademodel (void)
	Get shaded model.

void	gsd_bothbuffers (void)
	Draw to the front and back buffers.

void	gsd_frontbuffer (void)
	Draw to the front buffer.

void	gsd_backbuffer (void)
	Draw to the back buffer.

void	gsd_swapbuffers (void)
	Swap buffers.

void	gsd_popmatrix (void)
	Pop the current matrix stack.

void	gsd_pushmatrix (void)
	Push the current matrix stack.

void	gsd_scale (float xs, float ys, float zs)
	Multiply the current matrix by a general scaling matrix.

void	gsd_translate (float dx, float dy, float dz)
	Multiply the current matrix by a translation matrix.

void	gsd_getwindow (int window, int viewport, double modelMatrix, double projMatrix)
	Get viewport.

int	gsd_checkpoint (float pt[4], int window[4], int viewport[4], double modelMatrix[16], double projMatrix[16])
	ADD.

void	gsd_rot (float angle, char axis)
	ADD.

void	gsd_litvert_func (float norm, unsigned long col, float pt)
	Set the current normal vector & specify vertex.

void	gsd_litvert_func2 (float norm, unsigned long col UNUSED, float pt)
	ADD.

void	gsd_vert_func (float *pt)
	ADD.

void	gsd_color_func (unsigned int col)
	Set current color.

void	gsd_init_lightmodel (void)
	Initialize model light.

void	gsd_set_material (int set_shin, int set_emis, float sh, float em, int emcolor)
	Set material.

void	gsd_deflight (int num, struct lightdefs *vals)
	Define light.

void	gsd_switchlight (int num, int on)
	Switch light on/off.

int	gsd_getimage (unsigned char *pixbuf, unsigned int xsize, unsigned int *ysize)
	Get image of current GL screen.

int	gsd_getViewport (GLint tmp[4], GLint num[2])
	Get viewpoint.

int	gsd_writeView (unsigned char **pixbuf, unsigned int xsize, unsigned int ysize)
	Write view.

void	gsd_blend (int yesno)
	Specify pixel arithmetic.

void	gsd_def_clipplane (int num, double *params)
	Define clip plane.

void	gsd_set_clipplane (int num, int able)
	Set clip plane.

void	gsd_finish (void)
	Finish.

void	gsd_viewport (int l, int r, int b, int t)
	Set the viewport.

int	gsd_makelist (void)
	ADD.

void	gsd_bgnlist (int listno, int do_draw)
	ADD.

void	gsd_endlist (void)
	End list.

void	gsd_deletelist (GLuint listno, int range UNUSED)
	Delete list.

void	gsd_calllist (int listno)
	ADD.

void	gsd_calllists (int listno UNUSED)
	ADD.

Detailed Description

OGSF library - primitive drawing functions (lower level functions)

GRASS OpenGL gsurf OGSF Library

This program is free software under the GNU General Public License (>=v2). Read the file COPYING that comes with GRASS for details.

Author: Bill Brown USACERL (January 1993); Doxygenized by Martin Landa <landa.martin gmail.com> (May 2008); Support for framebuffer objects by Huidae Cho <grass4u gmail.com> (July 2018)

Definition in file gsd_prim.c.

Macro Definition Documentation

◆ ALP_MASK

#define ALP_MASK 0xFF000000

Definition at line 51 of file gsd_prim.c.

◆ BLU_MASK

#define BLU_MASK 0x00FF0000

Definition at line 50 of file gsd_prim.c.

Referenced by Gp_load_sites_thematic(), Gv_load_vect_thematic(), iso_calc_cube(), Nviz_color_from_str(), and slice_calc().

◆ border

#define border 15

Definition at line 62 of file gsd_prim.c.

Referenced by gsd_getwindow().

◆ GRN_MASK

#define GRN_MASK 0x0000FF00

Definition at line 49 of file gsd_prim.c.

Referenced by Gp_load_sites_thematic(), Gv_load_vect_thematic(), iso_calc_cube(), Nviz_color_from_str(), and slice_calc().

◆ INT_TO_ALP

#define INT_TO_ALP	(		i,
			a ) (a = (i & ALP_MASK) >> 24)

Definition at line 56 of file gsd_prim.c.

Referenced by gsd_color_func().

◆ INT_TO_BLU

#define INT_TO_BLU	(		i,
			b ) (b = (i & BLU_MASK) >> 16)

Definition at line 55 of file gsd_prim.c.

Referenced by GS_get_val_at_xy(), and gsd_color_func().

◆ INT_TO_GRN

#define INT_TO_GRN	(		i,
			g ) (g = (i & GRN_MASK) >> 8)

Definition at line 54 of file gsd_prim.c.

Referenced by GS_get_val_at_xy(), and gsd_color_func().

◆ INT_TO_RED

#define INT_TO_RED	(		i,
			r ) (r = (i & RED_MASK))

Definition at line 53 of file gsd_prim.c.

Referenced by GS_get_val_at_xy(), and gsd_color_func().

◆ MAX_OBJS

#define MAX_OBJS 64

Definition at line 58 of file gsd_prim.c.

Referenced by gsd_calllists(), gsd_deletelist(), and gsd_makelist().

◆ RED_MASK

#define RED_MASK 0x000000FF

Definition at line 48 of file gsd_prim.c.

Referenced by Gp_load_sites_thematic(), Gv_load_vect_thematic(), iso_calc_cube(), Nviz_color_from_str(), and slice_calc().

◆ USE_GL_NORMALIZE

#define USE_GL_NORMALIZE

Definition at line 46 of file gsd_prim.c.

Function Documentation

◆ gsd_backbuffer()

void gsd_backbuffer ( void )

Draw to the back buffer.

Definition at line 470 of file gsd_prim.c.

Referenced by GS_set_draw().

◆ gsd_backface()

void gsd_backface ( int n )

ADD.

Parameters

n

Definition at line 254 of file gsd_prim.c.

Referenced by GS_draw_lighting_model(), GS_draw_lighting_model1(), and gsd_3darrow().

◆ gsd_bgnline()

void gsd_bgnline ( void )

Begin line.

Definition at line 397 of file gsd_prim.c.

Referenced by gk_draw_path(), gsd_3dcursor(), gsd_arrow(), gsd_diamond_lines(), gsd_draw_box(), gsd_draw_gyro(), gsd_fringe_horiz_line(), gsd_fringe_horiz_line2(), gsd_fringe_vert_line(), gsd_line_onsurf(), gsd_nline_onsurf(), gsd_plus(), gsd_put_legend(), gsd_scalebar_v2(), gsd_wire_surf_const(), gsd_wire_surf_map(), gsd_x(), gvd_draw_lineonsurf(), gvd_vect(), gvld_wind3_box(), and gvld_wire_slices().

◆ gsd_bgnlist()

void gsd_bgnlist	(	int	listno,
		int	do_draw )

ADD.

Parameters

listno
do_draw

Definition at line 1125 of file gsd_prim.c.

Referenced by gsd_3darrow(), and gsd_put_legend().

◆ gsd_bgnpolygon()

void gsd_bgnpolygon ( void )

Delimit the vertices of a primitive or a group of like primitives.

Definition at line 372 of file gsd_prim.c.

Referenced by gsd_box(), gsd_cube(), gsd_diamond(), gsd_draw_cplane(), gsd_north_arrow(), gsd_scalebar(), gsd_surf_const(), and gvld_isosurf().

◆ gsd_bgnqstrip()

void gsd_bgnqstrip ( void )

ADD.

Definition at line 277 of file gsd_prim.c.

Referenced by gsd_fringe_horiz_poly(), gsd_fringe_vert_poly(), and primitive_cylinder().

◆ gsd_bgntfan()

void gsd_bgntfan ( void )

ADD.

Definition at line 337 of file gsd_prim.c.

Referenced by gsd_coarse_surf_map(), gsd_surf_map(), primitive_cone(), and primitive_cylinder().

◆ gsd_bgntmesh()

void gsd_bgntmesh ( void )

ADD.

Definition at line 297 of file gsd_prim.c.

Referenced by gsd_diamond(), gsd_ortho_wall(), gsd_surf_const(), gsd_surf_map_old(), gsd_triangulated_wall(), and gvld_slice().

◆ gsd_bgntstrip()

void gsd_bgntstrip ( void )

ADD.

Definition at line 317 of file gsd_prim.c.

◆ gsd_blend()

void gsd_blend ( int yesno )

Specify pixel arithmetic.

Parameters

yesno turn on/off

Definition at line 994 of file gsd_prim.c.

Referenced by gsd_coarse_surf_map(), gsd_draw_cplane(), gsd_ortho_wall(), gsd_surf_const(), gsd_surf_map(), gsd_surf_map_old(), gvld_isosurf(), gvld_slice(), and gvld_slices().

◆ gsd_bothbuffers()

void gsd_bothbuffers ( void )

Draw to the front and back buffers.

Definition at line 446 of file gsd_prim.c.

Referenced by GS_set_draw().

◆ gsd_calllist()

void gsd_calllist ( int listno )

ADD.

Parameters

listno

Definition at line 1173 of file gsd_prim.c.

Referenced by GS_draw_list(), and gsd_3darrow().

◆ gsd_calllists()

void gsd_calllists ( int listno UNUSED )

ADD.

Parameters

listno [unused]

Definition at line 1185 of file gsd_prim.c.

References gsd_call_label(), gsd_popmatrix(), gsd_pushmatrix(), and MAX_OBJS.

Referenced by GS_draw_all_list().

◆ gsd_checkpoint()

int gsd_checkpoint	(	float	pt[4],
		int	window[4],
		int	viewport[4],
		double	modelMatrix[16],
		double	projMatrix[16] )

ADD.

Parameters

pt
widnow
viewport
doubleMatrix
projMatrix

Returns: 0; 1

Definition at line 585 of file gsd_prim.c.

References X, and Y.

Referenced by gpd_2dsite(), gpd_3dsite(), gsd_surf_const(), gsd_surf_map(), and gsd_surf_map_old().

◆ gsd_circ()

void gsd_circ	(	float	x,
		float	y,
		float	rad )

ADD.

Parameters

x,y
rad

Definition at line 167 of file gsd_prim.c.

References x.

Referenced by gsd_draw_gyro().

◆ gsd_color_func()

void gsd_color_func ( unsigned int col )

Set current color.

Parameters

col	color value

Definition at line 698 of file gsd_prim.c.

References b, g, INT_TO_ALP, INT_TO_BLU, INT_TO_GRN, INT_TO_RED, and r.

Referenced by gk_draw_path(), gpd_obj(), GS_draw_line_onsurf(), GS_draw_nline_onsurf(), gs_put_label(), gsd_3darrow(), gsd_arrow(), gsd_arrow_onsurf(), gsd_display_fringe(), gsd_draw_asterisk(), gsd_draw_box(), gsd_draw_cplane(), gsd_draw_gyro(), gsd_drawsphere(), gsd_get_los(), gsd_litvert_func(), gsd_north_arrow(), gsd_plus(), gsd_put_legend(), gsd_scalebar(), gsd_scalebar_v2(), gsd_wire_surf_const(), gsd_wire_surf_map(), gsd_x(), gvd_draw_lineonsurf(), gvd_vect(), gvld_wind3_box(), and gvld_wire_slices().

◆ gsd_colormode()

void gsd_colormode ( int cm )

Set color mode.

Call glColorMaterial before enabling the GL_COLOR_MATERIAL

Parameters

cm	color mode value

Definition at line 98 of file gsd_prim.c.

Referenced by gk_draw_path(), gpd_obj(), GS_draw_lighting_model(), GS_draw_lighting_model1(), gsd_bgn_legend_viewport(), gsd_coarse_surf_map(), gsd_display_fringe(), gsd_norm_arrows(), gsd_ortho_wall(), gsd_surf_const(), gsd_surf_map(), gsd_surf_map_old(), gsd_triangulated_wall(), gsd_wire_arrows(), gsd_wire_surf_const(), gsd_wire_surf_map(), gvd_vect(), gvld_isosurf(), gvld_slices(), gvld_wind3_box(), and gvld_wire_slices().

◆ gsd_def_clipplane()

void gsd_def_clipplane	(	int	num,
		double *	params )

Define clip plane.

Parameters

num
params

Definition at line 1014 of file gsd_prim.c.

Referenced by gsd_def_cplane().

◆ gsd_deflight()

void gsd_deflight	(	int	num,
		struct lightdefs *	vals )

Define light.

Parameters

num	light id (starts with 1)
vals	position(x,y,z,w), color, ambientm, emission

Definition at line 836 of file gsd_prim.c.

References X, and Y.

Referenced by GS_new_light(), GS_setlight_ambient(), GS_setlight_color(), and GS_setlight_position().

◆ gsd_deletelist()

void gsd_deletelist	(	GLuint	listno,
		int range	UNUSED )

Delete list.

Parameters

listno
range	[unused]

Definition at line 1153 of file gsd_prim.c.

References MAX_OBJS.

Referenced by GS_delete_list().

◆ gsd_disc()

void gsd_disc	(	float	x,
		float	y,
		float	z,
		float	rad )

ADD.

Parameters

x,y,z
rad

Definition at line 187 of file gsd_prim.c.

References x.

Referenced by gsd_arrow_onsurf().

◆ gsd_endline()

void gsd_endline ( void )

End line.

Definition at line 407 of file gsd_prim.c.

Referenced by gk_draw_path(), gsd_3dcursor(), gsd_arrow(), gsd_diamond_lines(), gsd_draw_box(), gsd_draw_gyro(), gsd_fringe_horiz_line(), gsd_fringe_horiz_line2(), gsd_fringe_vert_line(), gsd_line_onsurf(), gsd_nline_onsurf(), gsd_plus(), gsd_put_legend(), gsd_scalebar_v2(), gsd_wire_surf_const(), gsd_wire_surf_map(), gsd_x(), gvd_draw_lineonsurf(), gvd_vect(), gvld_wind3_box(), and gvld_wire_slices().

◆ gsd_endlist()

void gsd_endlist ( void )

End list.

Definition at line 1140 of file gsd_prim.c.

Referenced by gsd_3darrow(), and gsd_put_legend().

◆ gsd_endpolygon()

void gsd_endpolygon ( void )

Delimit the vertices of a primitive or a group of like primitives.

Definition at line 387 of file gsd_prim.c.

Referenced by gsd_box(), gsd_cube(), gsd_diamond(), gsd_draw_cplane(), gsd_north_arrow(), gsd_scalebar(), gsd_surf_const(), and gvld_isosurf().

◆ gsd_endqstrip()

void gsd_endqstrip ( void )

ADD.

Definition at line 287 of file gsd_prim.c.

Referenced by gsd_fringe_horiz_poly(), gsd_fringe_vert_poly(), and primitive_cylinder().

◆ gsd_endtfan()

void gsd_endtfan ( void )

ADD.

Definition at line 347 of file gsd_prim.c.

Referenced by gsd_coarse_surf_map(), gsd_surf_map(), primitive_cone(), and primitive_cylinder().

◆ gsd_endtmesh()

void gsd_endtmesh ( void )

ADD.

Definition at line 307 of file gsd_prim.c.

Referenced by gsd_diamond(), gsd_ortho_wall(), gsd_surf_const(), gsd_surf_map_old(), gsd_triangulated_wall(), and gvld_slice().

◆ gsd_endtstrip()

void gsd_endtstrip ( void )

ADD.

Definition at line 327 of file gsd_prim.c.

◆ gsd_finish()

void gsd_finish ( void )

Finish.

Does nothing, only called from src.contrib/GMSL/NVIZ2.2/src/glwrappers.c

Definition at line 1059 of file gsd_prim.c.

◆ gsd_flush()

void gsd_flush ( void )

Mostly for flushing drawing commands across a network.

glFlush doesn't block, so if blocking is desired use glFinish.

Definition at line 84 of file gsd_prim.c.

Referenced by GS_clear(), GS_done_draw(), GS_draw_lighting_model(), GS_draw_line_onsurf(), GS_draw_nline_onsurf(), GS_draw_X(), gsd_fringe_horiz_line(), gsd_fringe_horiz_line2(), gsd_fringe_horiz_poly(), gsd_fringe_vert_line(), gsd_fringe_vert_poly(), gsd_north_arrow(), gsd_scalebar(), and gsd_scalebar_v2().

◆ gsd_frontbuffer()

void gsd_frontbuffer ( void )

Draw to the front buffer.

Definition at line 458 of file gsd_prim.c.

Referenced by GS_set_draw().

◆ gsd_getimage()

int gsd_getimage	(	unsigned char **	pixbuf,
		unsigned int *	xsize,
		unsigned int *	ysize )

Get image of current GL screen.

Parameters

	pixbuf	data buffer
[out]	xsize,ysize	picture dimension

Returns: 0 on failure; 1 on success

Definition at line 902 of file gsd_prim.c.

References b, l, r, and t.

Referenced by GS_write_ppm(), and GS_write_tif().

◆ gsd_getshademodel()

int gsd_getshademodel ( void )

Get shaded model.

Returns: shade

Definition at line 438 of file gsd_prim.c.

Referenced by gsd_3darrow(), gsd_box(), gsd_cube(), and gsd_diamond().

◆ gsd_getViewport()

int gsd_getViewport	(	GLint	tmp[4],
		GLint	num[2] )

Get viewpoint.

Parameters

tmp
num

Returns: 1

Definition at line 950 of file gsd_prim.c.

◆ gsd_getwindow()

void gsd_getwindow	(	int *	window,
		int *	viewport,
		double *	modelMatrix,
		double *	projMatrix )

Get viewport.

Parameters

[out]	window
	viewport
	modelMatrix	model matrix
	projMatrix	projection matrix

Definition at line 554 of file gsd_prim.c.

References border, gsd_do_scale(), gsd_popmatrix(), and gsd_pushmatrix().

Referenced by gpd_2dsite(), gpd_3dsite(), gsd_surf_const(), gsd_surf_map(), gsd_surf_map_old(), gvld_isosurf(), and gvld_slices().

◆ gsd_init_lightmodel()

void gsd_init_lightmodel ( void )

Initialize model light.

Definition at line 719 of file gsd_prim.c.

Referenced by GS_new_light().

◆ gsd_linewidth()

void gsd_linewidth ( short n )

Set width of rasterized lines.

Parameters

n	line width

Definition at line 267 of file gsd_prim.c.

Referenced by gk_draw_path(), gpd_2dsite(), gpd_3dsite(), GS_draw_line_onsurf(), GS_draw_nline_onsurf(), GS_draw_X(), gsd_arrow_onsurf(), gsd_bgn_legend_viewport(), gsd_display_fringe(), gsd_get_los(), gsd_scalebar_v2(), gvd_vect(), gvld_wind3_box(), and gvld_wire_slices().

◆ gsd_litvert_func()

void gsd_litvert_func	(	float *	norm,
		unsigned long	col,
		float *	pt )

Set the current normal vector & specify vertex.

Parameters

norm	normal vector
col	color value
pt	point (model coordinates)

Definition at line 657 of file gsd_prim.c.

References gsd_color_func().

Referenced by gsd_box(), gsd_coarse_surf_map(), gsd_cube(), gsd_diamond(), gsd_ortho_wall(), gsd_surf_const(), gsd_surf_map(), gsd_surf_map_old(), gsd_triangulated_wall(), gvld_isosurf(), and gvld_slice().

◆ gsd_litvert_func2()

void gsd_litvert_func2	(	float *	norm,
		unsigned long col	UNUSED,
		float *	pt )

ADD.

Parameters

norm
col	[unused]
pt

Definition at line 673 of file gsd_prim.c.

Referenced by primitive_cone(), and primitive_cylinder().

◆ gsd_makelist()

int gsd_makelist ( void )

ADD.

First time called, gets a bunch of objects, then hands them back when needed

Returns: -1 on failure; number of objects

Definition at line 1094 of file gsd_prim.c.

References MAX_OBJS.

Referenced by gsd_3darrow(), and gsd_put_legend().

◆ gsd_popmatrix()

void gsd_popmatrix ( void )

Pop the current matrix stack.

Definition at line 501 of file gsd_prim.c.

Referenced by gpd_2dsite(), gpd_3dsite(), gpd_obj(), GS_draw_lighting_model(), GS_draw_lighting_model1(), GS_draw_line_onsurf(), GS_draw_nline_onsurf(), GS_draw_X(), gsd_3darrow(), gsd_arrow(), gsd_bgn_legend_viewport(), gsd_box(), gsd_calllists(), gsd_coarse_surf_map(), gsd_cube(), gsd_diamond(), gsd_draw_asterisk(), gsd_draw_box(), gsd_draw_cplane(), gsd_draw_gyro(), gsd_end_legend_viewport(), gsd_fringe_horiz_line(), gsd_fringe_horiz_line2(), gsd_fringe_horiz_poly(), gsd_fringe_vert_line(), gsd_fringe_vert_poly(), gsd_getwindow(), gsd_norm_arrows(), gsd_north_arrow(), gsd_ortho_wall(), gsd_scalebar(), gsd_scalebar_v2(), gsd_surf_const(), gsd_surf_map(), gsd_surf_map_old(), gsd_triangulated_wall(), gsd_wire_arrows(), gsd_wire_surf_const(), gsd_wire_surf_map(), gvd_vect(), gvld_isosurf(), gvld_slices(), gvld_wind3_box(), and gvld_wire_slices().

◆ gsd_pushmatrix()

void gsd_pushmatrix ( void )

Push the current matrix stack.

Definition at line 511 of file gsd_prim.c.

Referenced by gpd_2dsite(), gpd_3dsite(), gpd_obj(), GS_draw_lighting_model(), GS_draw_lighting_model1(), GS_draw_line_onsurf(), GS_draw_nline_onsurf(), GS_draw_X(), GS_set_Narrow(), gsd_3darrow(), gsd_arrow(), gsd_bgn_legend_viewport(), gsd_box(), gsd_calllists(), gsd_coarse_surf_map(), gsd_cube(), gsd_diamond(), gsd_draw_asterisk(), gsd_draw_box(), gsd_draw_cplane(), gsd_draw_gyro(), gsd_fringe_horiz_line(), gsd_fringe_horiz_line2(), gsd_fringe_horiz_poly(), gsd_fringe_vert_line(), gsd_fringe_vert_poly(), gsd_getwindow(), gsd_norm_arrows(), gsd_north_arrow(), gsd_ortho_wall(), gsd_scalebar(), gsd_scalebar_v2(), gsd_surf_const(), gsd_surf_map(), gsd_surf_map_old(), gsd_triangulated_wall(), gsd_wire_arrows(), gsd_wire_surf_const(), gsd_wire_surf_map(), gvd_vect(), gvld_isosurf(), gvld_slices(), gvld_wind3_box(), and gvld_wire_slices().

◆ gsd_rot()

void gsd_rot	(	float	angle,
		char	axis )

ADD.

Parameters

angle
axis

Definition at line 605 of file gsd_prim.c.

References G_warning(), and x.

Referenced by gsd_3darrow(), gsd_arrow(), gsd_draw_asterisk(), gsd_draw_cplane(), and gsd_draw_gyro().

◆ gsd_scale()

void gsd_scale	(	float	xs,
		float	ys,
		float	zs )

Multiply the current matrix by a general scaling matrix.

Parameters

xs	x scale value
ys	y scale value
zs	z scale value

Definition at line 525 of file gsd_prim.c.

Referenced by gpd_obj(), GS_draw_lighting_model1(), gsd_3darrow(), gsd_arrow(), gsd_box(), gsd_cube(), gsd_diamond(), gsd_do_scale(), gsd_draw_asterisk(), gsd_draw_box(), gsd_draw_cplane(), and gsd_draw_gyro().

◆ gsd_set_clipplane()

void gsd_set_clipplane	(	int	num,
		int	able )

Set clip plane.

Parameters

num
able

Definition at line 1041 of file gsd_prim.c.

Referenced by gsd_cplane_off(), gsd_cplane_on(), gsd_draw_cplane(), and gsd_draw_cplane_fence().

◆ gsd_set_material()

void gsd_set_material	(	int	set_shin,
		int	set_emis,
		float	sh,
		float	em,
		int	emcolor )

Set material.

Parameters

set_shin,set_emis	flags
sh,em	should be 0. - 1.
emcolor	packed colors to use for emission

Definition at line 803 of file gsd_prim.c.

Referenced by gsd_coarse_surf_map(), gsd_surf_map(), gsd_surf_map_old(), gvld_isosurf(), gvld_slices(), and gvld_wire_slices().

◆ gsd_shademodel()

void gsd_shademodel ( int shade )

Set shaded model.

Parameters

shade non-zero for GL_SMOOTH otherwise GL_FLAT

Definition at line 419 of file gsd_prim.c.

Referenced by GS_draw_lighting_model(), GS_draw_lighting_model1(), GS_draw_surf(), gsd_3darrow(), gsd_box(), gsd_cube(), gsd_diamond(), gvld_isosurf(), gvld_slices(), gvld_wind3_box(), and gvld_wire_slices().

◆ gsd_sphere()

void gsd_sphere	(	float *	center,
		float	siz )

ADD.

Parameters

center	center-point
siz	size value

Definition at line 207 of file gsd_prim.c.

Referenced by gpd_obj(), and gsd_drawsphere().

◆ gsd_swapbuffers()

void gsd_swapbuffers ( void )

Swap buffers.

Definition at line 482 of file gsd_prim.c.

Referenced by GS_done_draw().

◆ gsd_swaptmesh()

void gsd_swaptmesh ( void )

ADD.

Definition at line 357 of file gsd_prim.c.

Referenced by gsd_diamond().

◆ gsd_switchlight()

void gsd_switchlight	(	int	num,
		int	on )

Switch light on/off.

Parameters

num
on	1 for 'on', 0 turns them off

Definition at line 877 of file gsd_prim.c.

Referenced by GS_lights_off(), GS_lights_on(), GS_new_light(), and GS_switchlight().

◆ gsd_translate()

void gsd_translate	(	float	dx,
		float	dy,
		float	dz )

Multiply the current matrix by a translation matrix.

Parameters

dx	x translation value
dy	y translation value
dz	z translation value

Definition at line 539 of file gsd_prim.c.

Referenced by gpd_2dsite(), GS_draw_line_onsurf(), GS_draw_nline_onsurf(), GS_draw_X(), gsd_3darrow(), gsd_arrow(), gsd_box(), gsd_coarse_surf_map(), gsd_cube(), gsd_diamond(), gsd_do_scale(), gsd_draw_asterisk(), gsd_draw_box(), gsd_draw_cplane(), gsd_draw_gyro(), gsd_fringe_horiz_line(), gsd_fringe_horiz_line2(), gsd_fringe_horiz_poly(), gsd_fringe_vert_line(), gsd_fringe_vert_poly(), gsd_norm_arrows(), gsd_surf_const(), gsd_surf_map(), gsd_surf_map_old(), gsd_wire_arrows(), gsd_wire_surf_const(), gsd_wire_surf_map(), gvd_vect(), gvld_isosurf(), gvld_slices(), gvld_wind3_box(), and gvld_wire_slices().

◆ gsd_vert_func()

void gsd_vert_func ( float * pt )

ADD.

Parameters

pt

Definition at line 686 of file gsd_prim.c.

Referenced by gk_draw_path(), gsd_3dcursor(), gsd_arrow(), gsd_diamond_lines(), gsd_draw_box(), gsd_draw_cplane(), gsd_draw_gyro(), gsd_fringe_horiz_line(), gsd_fringe_horiz_line2(), gsd_fringe_horiz_poly(), gsd_fringe_vert_line(), gsd_fringe_vert_poly(), gsd_line_onsurf(), gsd_nline_onsurf(), gsd_plus(), gsd_scalebar_v2(), gsd_wire_surf_const(), gsd_wire_surf_map(), gsd_x(), gvd_draw_lineonsurf(), gvd_vect(), gvld_wind3_box(), and gvld_wire_slices().

◆ gsd_viewport()

void gsd_viewport	(	int	l,
		int	r,
		int	b,
		int	t )

Set the viewport.

l, b specify the lower left corner of the viewport rectangle, in pixels.

r, t specify the width and height of the viewport.

Parameters

l	left
r	right
b	bottom
t	top

Definition at line 1077 of file gsd_prim.c.

References b, l, r, and t.

Referenced by GS_set_viewport().

◆ gsd_writeView()

int gsd_writeView	(	unsigned char **	pixbuf,
		unsigned int	xsize,
		unsigned int	ysize )

Write view.

Parameters

pixbuf	data buffer
xsize,ysize	picture dimension

Returns: 0 on failure; 1 on success

Definition at line 969 of file gsd_prim.c.

Referenced by GS_write_zoom().

◆ gsd_zwritemask()

void gsd_zwritemask ( unsigned long n )

Write out z-mask.

Enable or disable writing into the depth buffer

Parameters

n	Specifies whether the depth buffer is enabled for writing

Definition at line 241 of file gsd_prim.c.

Referenced by gk_draw_path(), GS_draw_lighting_model(), GS_draw_lighting_model1(), gsd_coarse_surf_map(), gsd_display_fringe(), gsd_draw_cplane(), gsd_ortho_wall(), gsd_surf_const(), gsd_surf_map(), gsd_surf_map_old(), gvld_isosurf(), gvld_slice(), and gvld_slices().

◆ show_colormode()

void show_colormode ( void )

Print color mode to stderr.

Definition at line 151 of file gsd_prim.c.

References G_message().

Referenced by gsd_surf_map_old().

Macros

Functions

Detailed Description

Macro Definition Documentation

◆ ALP_MASK

◆ BLU_MASK

◆ border

◆ GRN_MASK

◆ INT_TO_ALP

◆ INT_TO_BLU

◆ INT_TO_GRN

◆ INT_TO_RED

◆ MAX_OBJS

◆ RED_MASK

◆ USE_GL_NORMALIZE

Function Documentation

◆ gsd_backbuffer()

◆ gsd_backface()

◆ gsd_bgnline()

◆ gsd_bgnlist()

◆ gsd_bgnpolygon()

◆ gsd_bgnqstrip()

◆ gsd_bgntfan()

◆ gsd_bgntmesh()

◆ gsd_bgntstrip()

◆ gsd_blend()

◆ gsd_bothbuffers()

◆ gsd_calllist()

◆ gsd_calllists()

◆ gsd_checkpoint()

◆ gsd_circ()

◆ gsd_color_func()

◆ gsd_colormode()

◆ gsd_def_clipplane()

◆ gsd_deflight()

◆ gsd_deletelist()

◆ gsd_disc()

◆ gsd_endline()

◆ gsd_endlist()

◆ gsd_endpolygon()

◆ gsd_endqstrip()

◆ gsd_endtfan()

◆ gsd_endtmesh()

◆ gsd_endtstrip()

◆ gsd_finish()

◆ gsd_flush()

◆ gsd_frontbuffer()

◆ gsd_getimage()

◆ gsd_getshademodel()

◆ gsd_getViewport()

◆ gsd_getwindow()

◆ gsd_init_lightmodel()

◆ gsd_linewidth()

◆ gsd_litvert_func()

◆ gsd_litvert_func2()

◆ gsd_makelist()

◆ gsd_popmatrix()

◆ gsd_pushmatrix()

◆ gsd_rot()

◆ gsd_scale()

◆ gsd_set_clipplane()

◆ gsd_set_material()

◆ gsd_shademodel()

◆ gsd_sphere()

◆ gsd_swapbuffers()

◆ gsd_swaptmesh()

◆ gsd_switchlight()

◆ gsd_translate()

◆ gsd_vert_func()

◆ gsd_viewport()

◆ gsd_writeView()

◆ gsd_zwritemask()

◆ show_colormode()