OSD Utility Functions. More...

#include "openpilot.h"
#include "fonts.h"
#include "images.h"
#include "misc_math.h"
#include "pios_video.h"

Data Structures
struct	FontDimensions

struct	point_t

Macros
#define	SIZEOF_ARRAY(x) (sizeof(x) / sizeof((x)[0]))

#define	HUD_VSCALE_FLAG_CLEAR 1

#define	HUD_VSCALE_FLAG_NO_NEGATIVE 2

#define	PIXELS_PER_BIT (8 / PIOS_VIDEO_BITS_PER_PIXEL)

#define	CALC_BIT_IN_WORD(x) (2 * ((x) & 3))

#define	CALC_BITSHIFT_WORD(x) (2 * ((x) & 3))

#define	CALC_BIT_MASK(x) (3 << (6 - CALC_BITSHIFT_WORD(x)))

#define	PACK_BITS(mask, level) (level << 7 \| mask << 6 \| level << 5 \| mask << 4 \| level << 3 \| mask << 2 \| level << 1 \| mask)

#define	CALC_BIT0_IN_WORD(x) (2 * ((x) & 3))

#define	CALC_BIT1_IN_WORD(x) (2 * ((x) & 3) + 1)

#define	COMPUTE_HLINE_EDGE_L_MASK(b) ((1 << (7 - (b))) - 1)

#define	COMPUTE_HLINE_EDGE_R_MASK(b) (~((1 << (6 - (b))) - 1))

#define	CALC_BUFF_ADDR(x, y) (((x) / PIXELS_PER_BIT) + ((y) * BUFFER_WIDTH))

#define	DEBUG_DELAY

#define	WRITE_WORD_MODE(buff, addr, mask, mode)

#define	WRITE_WORD_NAND(buff, addr, mask) { buff[addr] &= ~mask; DEBUG_DELAY; }

#define	WRITE_WORD_OR(buff, addr, mask) { buff[addr] \|= mask; DEBUG_DELAY; }

#define	WRITE_WORD_XOR(buff, addr, mask) { buff[addr] ^= mask; DEBUG_DELAY; }

#define	WRITE_WORD(buff, addr, mask, value) { buff[addr] = (buff[addr] & ~mask) \| (value & mask);}

#define	COMPUTE_HLINE_ISLAND_MASK(b0, b1) (COMPUTE_HLINE_EDGE_L_MASK(b0) ^ COMPUTE_HLINE_EDGE_L_MASK(b1));

#define	SETUP_STROKE_FILL(stroke, fill, mode)

#define	ENDCAP_NONE 0

#define	ENDCAP_ROUND 1

#define	ENDCAP_FLAT 2

#define	DRAW_ENDCAP_HLINE(e, x, y, s, f, l)

#define	DRAW_ENDCAP_VLINE(e, x, y, s, f, l)

#define	CIRCLE_PLOT_8(buff, cx, cy, x, y, mode)

#define	CIRCLE_PLOT_4(buff, cx, cy, x, y, mode)

#define	FONT_BOLD 1

#define	FONT_INVERT 2

#define	TEXT_VA_TOP 0

#define	TEXT_VA_MIDDLE 1

#define	TEXT_VA_BOTTOM 2

#define	TEXT_HA_LEFT 0

#define	TEXT_HA_CENTER 1

#define	TEXT_HA_RIGHT 2

#define	MAX3(a, b, c) MAX(a, MAX(b, c))

#define	MIN3(a, b, c) MIN(a, MIN(b, c))

#define	LIMIT(x, l, h) MAX(l, MIN(x, h))

#define	CHECK_COORDS(x, y) if (x < GRAPHICS_LEFT \|\| x > GRAPHICS_RIGHT \|\| y < GRAPHICS_TOP \|\| y > GRAPHICS_BOTTOM) { return; }

#define	CHECK_COORD_X(x) if (x < GRAPHICS_LEFT \|\| x > GRAPHICS_RIGHT) { return; }

#define	CHECK_COORD_Y(y) if (y < GRAPHICS_TOP \|\| y > GRAPHICS_BOTTOM) { return; }

#define	CLIP_COORDS(x, y) { CLIP_COORD_X(x); CLIP_COORD_Y(y); }

#define	CLIP_COORD_X(x) { x = x < GRAPHICS_LEFT ? GRAPHICS_LEFT : x > GRAPHICS_RIGHT ? GRAPHICS_RIGHT : x; }

#define	CLIP_COORD_Y(y) { y = y < GRAPHICS_TOP ? GRAPHICS_TOP : y > GRAPHICS_BOTTOM ? GRAPHICS_BOTTOM : y; }

#define	SWAP(a, b) { a ^= b; b ^= a; a ^= b; }

Functions
void	clearGraphics ()

void	draw_image (uint16_t x, uint16_t y, const struct Image *image)

void	plotFourQuadrants (int32_t centerX, int32_t centerY, int32_t deltaX, int32_t deltaY)

void	ellipse (int centerX, int centerY, int horizontalRadius, int verticalRadius)

void	drawArrow (uint16_t x, uint16_t y, uint16_t angle, uint16_t size_quarter)

void	drawBox (uint16_t x1, uint16_t y1, uint16_t x2, uint16_t y2)

void	write_pixel_lm (int x, int y, int mmode, int lmode)

void	write_hline_lm (int x0, int x1, int y, int lmode, int mmode)

void	write_hline_outlined (int x0, int x1, int y, int endcap0, int endcap1, int mode, int mmode)

void	write_vline_lm (int x, int y0, int y1, int lmode, int mmode)

void	write_vline_outlined (int x, int y0, int y1, int endcap0, int endcap1, int mode, int mmode)

void	write_filled_rectangle_lm (int x, int y, int width, int height, int lmode, int mmode)

void	write_rectangle_outlined (int x, int y, int width, int height, int mode, int mmode)

void	write_circle_outlined (int cx, int cy, int r, int dashp, int bmode, int mode, int mmode)

void	write_line_lm (int x0, int y0, int x1, int y1, int mmode, int lmode)

void	write_line_outlined (int x0, int y0, int x1, int y1, __attribute__((unused)) int endcap0, __attribute__((unused)) int endcap1, int mode, int mmode)

void	write_line_outlined_dashed (int x0, int y0, int x1, int y1, __attribute__((unused)) int endcap0, __attribute__((unused)) int endcap1, int mode, int mmode, int dots)

const struct FontEntry *	get_font_info (int font)

void	calc_text_dimensions (char str, const struct FontEntry font, int xs, int ys, struct FontDimensions *dim)

void	write_string (char *str, int x, int y, int xs, int ys, int va, int ha, int flags, int font)

void	draw_polygon (int16_t x, int16_t y, float angle, const point_t *points, uint8_t n_points, int mode, int mmode)

void	lla_to_ned (int32_t lat, int32_t lon, float alt, float *NED)

Detailed Description

OSD Utility Functions.

Author: Tau Labs, http://taulabs.org, Copyright (C) 2013-2015; The OpenPilot Team, http://www.openpilot.org Copyright (C) 2010-2014.

See Also: The GNU Public License (GPL) Version 3

Definition in file osd_utils.h.

Data Structures

Macros

Functions

Detailed Description