hidgl.c File Reference

#include <stdio.h>
#include <stdlib.h>
#include <math.h>
#include <assert.h>
#include "action.h"
#include "crosshair.h"
#include "data.h"
#include "error.h"
#include "global.h"
#include "mymem.h"
#include "clip.h"
#include "hid.h"
#include "hidgl.h"
#include "rtree.h"

Include dependency graph for hidgl.c:

Go to the source code of this file.

Data Structures
struct	do_hole_info
Defines
#define	GL_GLEXT_PROTOTYPES   1
#define	MAX_PIXELS_ARC_TO_CHORD   0.5
#define	MIN_SLICES   6
#define	MIN_TRIANGLES_PER_CAP   3
#define	MAX_TRIANGLES_PER_CAP   90
#define	MIN_SLICES_PER_ARC   6
#define	MAX_SLICES_PER_ARC   360
#define	MIN_TRIANGLES_PER_CIRCLE   6
#define	MAX_TRIANGLES_PER_CIRCLE   360
#define	MAX_COMBINED_MALLOCS   2500
#define	CALLBACK
#define	MAX_COMBINED_VERTICES   2500
Functions
static void	hidgl_init_triangle_array (triangle_buffer *buffer)
void	hidgl_flush_triangles (triangle_buffer *buffer)
void	hidgl_ensure_triangle_space (triangle_buffer *buffer, int count)
void	hidgl_set_depth (float depth)
void	hidgl_draw_grid (BoxType *drawn_area)
	Draw the grid on the 3D canvas.
int	calc_slices (float pix_radius, float sweep_angle)
static void	draw_cap (Coord width, Coord x, Coord y, Angle angle, double scale)
void	hidgl_draw_line (int cap, Coord width, Coord x1, Coord y1, Coord x2, Coord y2, double scale)
void	hidgl_draw_arc (Coord width, Coord x, Coord y, Coord rx, Coord ry, Angle start_angle, Angle delta_angle, double scale)
void	hidgl_draw_rect (Coord x1, Coord y1, Coord x2, Coord y2)
void	hidgl_fill_circle (Coord vx, Coord vy, Coord vr, double scale)
static void CALLBACK	myError (GLenum errno)
static void CALLBACK	myCombine (GLdouble coords[3], void *vertex_data[4], GLfloat weight[4], void **dataOut)
static void CALLBACK	myBegin (GLenum type)
static void CALLBACK	myVertex (GLdouble *vertex_data)
static void	myFreeCombined ()
void	hidgl_fill_polygon (int n_coords, Coord *x, Coord *y)
void	tesselate_contour (GLUtesselator *tobj, PLINE *contour, GLdouble *vertices, double scale)
static int	do_hole (const BoxType *b, void *cl)
static void	fill_polyarea (POLYAREA *pa, const BoxType *clip_box, double scale)
void	hidgl_fill_pcb_polygon (PolygonType *poly, const BoxType *clip_box, double scale)
void	hidgl_fill_rect (Coord x1, Coord y1, Coord x2, Coord y2)
void	hidgl_init (void)
void	hidgl_start_render (void)
void	hidgl_finish_render (void)
int	hidgl_stencil_bits (void)
static void	hidgl_clean_unassigned_stencil (void)
int	hidgl_assign_clear_stencil_bit (void)
void	hidgl_return_stencil_bit (int bit)
void	hidgl_reset_stencil_usage (void)
Variables
triangle_buffer	buffer
float	global_depth = 0
static void *	combined_to_free [MAX_COMBINED_MALLOCS]
static int	combined_num_to_free = 0
static GLenum	tessVertexType
static int	stashed_vertices
static int	triangle_comp_idx
static double	global_scale
static GLint	stencil_bits
static int	dirty_bits = 0
static int	assigned_bits = 0

---

Define Documentation

#define CALLBACK

Definition at line 430 of file hidgl.c.

#define GL_GLEXT_PROTOTYPES   1

Definition at line 40 of file hidgl.c.

#define MAX_COMBINED_MALLOCS   2500

Definition at line 421 of file hidgl.c.

Referenced by myCombine().

#define MAX_COMBINED_VERTICES   2500

Referenced by myCombine().

#define MAX_PIXELS_ARC_TO_CHORD   0.5

Definition at line 189 of file hidgl.c.

Referenced by calc_slices().

#define MAX_SLICES_PER_ARC   360

Definition at line 297 of file hidgl.c.

Referenced by hidgl_draw_arc().

#define MAX_TRIANGLES_PER_CAP   90

Definition at line 203 of file hidgl.c.

Referenced by draw_cap().

#define MAX_TRIANGLES_PER_CIRCLE   360

Referenced by hidgl_fill_circle().

#define MIN_SLICES   6

Definition at line 190 of file hidgl.c.

Referenced by calc_slices().

#define MIN_SLICES_PER_ARC   6

Definition at line 296 of file hidgl.c.

Referenced by hidgl_draw_arc().

#define MIN_TRIANGLES_PER_CAP   3

Definition at line 202 of file hidgl.c.

Referenced by draw_cap().

#define MIN_TRIANGLES_PER_CIRCLE   6

Referenced by hidgl_fill_circle().

---

Function Documentation

int calc_slices	(	float	pix_radius,
		float	sweep_angle
	)

Definition at line 191 of file hidgl.c.

References MAX_PIXELS_ARC_TO_CHORD, and MIN_SLICES.

Referenced by draw_cap(), hidgl_draw_arc(), hidgl_fill_circle(), and tesselate_contour().

static int do_hole	(	const BoxType *	b,
		void *	cl
	)		[static]

Definition at line 616 of file hidgl.c.

References PLINE::Flags, PLINE::orient, PLF_DIR, do_hole_info::scale, tesselate_contour(), do_hole_info::tobj, and do_hole_info::vertices.

Referenced by fill_polyarea().

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static void draw_cap	(	Coord	width,
		Coord	x,
		Coord	y,
		Angle	angle,
		double	scale
	)		[static]

Definition at line 204 of file hidgl.c.

References calc_slices(), hidgl_add_triangle(), hidgl_ensure_triangle_space(), M_PI, MAX_TRIANGLES_PER_CAP, MIN_TRIANGLES_PER_CAP, x, and y.

Referenced by hidgl_draw_arc(), and hidgl_draw_line().

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static void fill_polyarea	(	POLYAREA *	pa,
		const BoxType *	clip_box,
		double	scale
	)		[static]

Definition at line 635 of file hidgl.c.

References assigned_bits, POLYAREA::contour_tree, POLYAREA::contours, PLINE::Count, do_hole(), global_scale, hidgl_assign_clear_stencil_bit(), hidgl_flush_triangles(), hidgl_return_stencil_bit(), malloc(), MAX, myBegin(), myCombine(), myError(), myFreeCombined(), myVertex(), PLINE::next, r_search(), scale, do_hole_info::scale, tesselate_contour(), do_hole_info::tobj, and do_hole_info::vertices.

Referenced by hidgl_fill_pcb_polygon().

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int hidgl_assign_clear_stencil_bit

(

void

)

Definition at line 782 of file hidgl.c.

References assigned_bits, dirty_bits, hidgl_clean_unassigned_stencil(), and stencil_bits.

Referenced by fill_polyarea(), ghid_use_mask(), and start_subcomposite().

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static void hidgl_clean_unassigned_stencil

(

void

)

[static]

Definition at line 772 of file hidgl.c.

References assigned_bits.

Referenced by hidgl_assign_clear_stencil_bit().

void hidgl_draw_arc	(	Coord	width,
		Coord	x,
		Coord	y,
		Coord	rx,
		Coord	ry,
		Angle	start_angle,
		Angle	delta_angle,
		double	scale
	)

Definition at line 299 of file hidgl.c.

References calc_slices(), draw_cap(), hidgl_add_triangle(), hidgl_ensure_triangle_space(), M_PI, MAX_SLICES_PER_ARC, MIN_SLICES_PER_ARC, scale, x, and y.

Referenced by draw_lead_user(), and ghid_draw_arc().

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void hidgl_draw_grid

(

BoxType *

drawn_area

)

Draw the grid on the 3D canvas.

Definition at line 131 of file hidgl.c.

References SettingType::DrawGrid, global_depth, PCBType::Grid, GridFit(), PCBType::GridOffsetX, PCBType::GridOffsetY, MAX, PCBType::MaxHeight, PCBType::MaxWidth, MIN, n, PCB, realloc(), Settings, x, BoxType::X1, BoxType::X2, y, BoxType::Y1, and BoxType::Y2.

Referenced by ghid_draw_grid().

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void hidgl_draw_line	(	int	cap,
		Coord	width,
		Coord	x1,
		Coord	y1,
		Coord	x2,
		Coord	y2,
		double	scale
	)

Definition at line 232 of file hidgl.c.

References Beveled_Cap, draw_cap(), hidgl_add_triangle(), hidgl_ensure_triangle_space(), M_PI, Round_Cap, scale, Square_Cap, and Trace_Cap.

Referenced by ghid_draw_line().

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void hidgl_draw_rect	(	Coord	x1,
		Coord	y1,
		Coord	x2,
		Coord	y2
	)

Definition at line 377 of file hidgl.c.

References global_depth.

Referenced by ghid_draw_rect().

void hidgl_ensure_triangle_space	(	triangle_buffer *	buffer,
		int	count
	)

Definition at line 108 of file hidgl.c.

References hidgl_flush_triangles(), TRIANGLE_ARRAY_SIZE, and triangle_buffer::triangle_count.

Referenced by draw_cap(), hidgl_draw_arc(), hidgl_draw_line(), hidgl_fill_circle(), hidgl_fill_rect(), and myVertex().

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void hidgl_fill_circle	(	Coord	vx,
		Coord	vy,
		Coord	vr,
		double	scale
	)

Definition at line 389 of file hidgl.c.

References calc_slices(), hidgl_add_triangle(), hidgl_ensure_triangle_space(), M_PI, MAX_TRIANGLES_PER_CIRCLE, MIN_TRIANGLES_PER_CIRCLE, vx, vy, x, and y.

Referenced by ghid_fill_circle(), and tesselate_contour().

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void hidgl_fill_pcb_polygon	(	PolygonType *	poly,
		const BoxType *	clip_box,
		double	scale
	)

Definition at line 710 of file hidgl.c.

References polygon_st::Clipped, POLYAREA::f, fill_polyarea(), and TEST_FLAG.

Referenced by ghid_fill_pcb_polygon().

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void hidgl_fill_polygon	(	int	n_coords,
		Coord *	x,
		Coord *	y
	)

Definition at line 542 of file hidgl.c.

References malloc(), myBegin(), myCombine(), myError(), myFreeCombined(), and myVertex().

Referenced by ghid_fill_polygon().

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void hidgl_fill_rect	(	Coord	x1,
		Coord	y1,
		Coord	x2,
		Coord	y2
	)

Definition at line 727 of file hidgl.c.

References hidgl_add_triangle(), and hidgl_ensure_triangle_space().

Referenced by ghid_fill_rect().

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void hidgl_finish_render

(

void

)

Definition at line 761 of file hidgl.c.

Referenced by ghid_drawing_area_expose_cb(), ghid_finish_debug_draw(), ghid_pinout_preview_expose(), and ghid_render_pixmap().

void hidgl_flush_triangles

(

triangle_buffer *

buffer

)

Definition at line 93 of file hidgl.c.

References triangle_buffer::coord_comp_count, triangle_buffer::triangle_array, and triangle_buffer::triangle_count.

Referenced by draw_lead_user(), end_subcomposite(), fill_polyarea(), ghid_drawing_area_expose_cb(), ghid_finish_debug_draw(), ghid_flush_debug_draw(), ghid_pinout_preview_expose(), ghid_render_pixmap(), ghid_use_mask(), hidgl_ensure_triangle_space(), and start_subcomposite().

void hidgl_init

(

void

)

Definition at line 735 of file hidgl.c.

References stencil_bits.

Referenced by hidgl_start_render().

static void hidgl_init_triangle_array

(

triangle_buffer *

buffer

)

[static]

Definition at line 86 of file hidgl.c.

References triangle_buffer::coord_comp_count, and triangle_buffer::triangle_count.

Referenced by hidgl_start_render().

void hidgl_reset_stencil_usage

(

void

)

Definition at line 825 of file hidgl.c.

References assigned_bits, and dirty_bits.

Referenced by ghid_drawing_area_expose_cb(), ghid_pinout_preview_expose(), and ghid_render_pixmap().

void hidgl_return_stencil_bit

(

int

bit

)

Definition at line 819 of file hidgl.c.

References assigned_bits.

Referenced by end_subcomposite(), fill_polyarea(), and ghid_use_mask().

void hidgl_set_depth

(

float

depth

)

Definition at line 122 of file hidgl.c.

References global_depth.

void hidgl_start_render

(

void

)

Definition at line 754 of file hidgl.c.

References hidgl_init(), and hidgl_init_triangle_array().

Referenced by ghid_drawing_area_expose_cb(), ghid_pinout_preview_expose(), ghid_render_pixmap(), and ghid_request_debug_draw().

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int hidgl_stencil_bits

(

void

)

Definition at line 766 of file hidgl.c.

References stencil_bits.

Referenced by ghid_drawing_area_expose_cb().

static void CALLBACK myBegin

(

GLenum

type

)

[static]

Definition at line 472 of file hidgl.c.

References stashed_vertices, tessVertexType, and triangle_comp_idx.

Referenced by fill_polyarea(), and hidgl_fill_polygon().

static void CALLBACK myCombine	(	GLdouble	coords[3],
		void *	vertex_data[4],
		GLfloat	weight[4],
		void **	dataOut
	)		[static]

Definition at line 440 of file hidgl.c.

References combined_num_to_free, combined_to_free, malloc(), MAX_COMBINED_MALLOCS, and MAX_COMBINED_VERTICES.

Referenced by fill_polyarea(), and hidgl_fill_polygon().

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static void CALLBACK myError

(

GLenum

errno

)

[static]

Definition at line 434 of file hidgl.c.

Referenced by fill_polyarea(), and hidgl_fill_polygon().

static void myFreeCombined

(

)

[static]

Definition at line 535 of file hidgl.c.

References combined_num_to_free, and combined_to_free.

Referenced by fill_polyarea(), and hidgl_fill_polygon().

static void CALLBACK myVertex

(

GLdouble *

vertex_data

)

[static]

Definition at line 482 of file hidgl.c.

References hidgl_add_triangle(), hidgl_ensure_triangle_space(), stashed_vertices, tessVertexType, and triangle_comp_idx.

Referenced by fill_polyarea(), and hidgl_fill_polygon().

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void tesselate_contour	(	GLUtesselator *	tobj,
		PLINE *	contour,
		GLdouble *	vertices,
		double	scale
	)

Definition at line 578 of file hidgl.c.

References calc_slices(), PLINE::cx, PLINE::cy, PLINE::head, hidgl_fill_circle(), PLINE::is_round, M_PI, VNODE::next, VNODE::point, and PLINE::radius.

Referenced by do_hole(), and fill_polyarea().

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---

Variable Documentation

int assigned_bits = 0 [static]

Definition at line 632 of file hidgl.c.

Referenced by fill_polyarea(), hidgl_assign_clear_stencil_bit(), hidgl_clean_unassigned_stencil(), hidgl_reset_stencil_usage(), and hidgl_return_stencil_bit().

triangle_buffer buffer

Definition at line 82 of file hidgl.c.

Referenced by build_cdt(), draw_lead_user(), DRCAll(), end_subcomposite(), gcode_start_gcode(), ghid_drawing_area_expose_cb(), ghid_finish_debug_draw(), ghid_flush_debug_draw(), ghid_pinout_preview_expose(), ghid_render_pixmap(), ghid_scrolled_text_view(), ghid_use_mask(), pcb_vprintf(), snapshot(), start_subcomposite(), and text_view_append().

int combined_num_to_free = 0 [static]

Definition at line 423 of file hidgl.c.

Referenced by myCombine(), and myFreeCombined().

void* combined_to_free[MAX_COMBINED_MALLOCS] [static]

Definition at line 422 of file hidgl.c.

Referenced by myCombine(), and myFreeCombined().

int dirty_bits = 0 [static]

Definition at line 631 of file hidgl.c.

Referenced by hidgl_assign_clear_stencil_bit(), and hidgl_reset_stencil_usage().

float global_depth = 0

Definition at line 83 of file hidgl.c.

Referenced by hidgl_add_triangle(), hidgl_draw_grid(), hidgl_draw_rect(), and hidgl_set_depth().

double global_scale [static]

Definition at line 479 of file hidgl.c.

Referenced by fill_polyarea().

int stashed_vertices [static]

Definition at line 426 of file hidgl.c.

Referenced by myBegin(), and myVertex().

GLint stencil_bits [static]

Definition at line 630 of file hidgl.c.

Referenced by hidgl_assign_clear_stencil_bit(), hidgl_init(), and hidgl_stencil_bits().

GLenum tessVertexType [static]

Definition at line 425 of file hidgl.c.

Referenced by myBegin(), and myVertex().

int triangle_comp_idx [static]

Definition at line 427 of file hidgl.c.

Referenced by myBegin(), and myVertex().