ili9341 driver inspired by Adafruit ili9341 code All code in this file has been rewritten by Mike Gore More...

#include "user_config.h"
#include <stdint.h>
#include <stdarg.h>
#include <string.h>
#include <math.h>
#include "display/font.h"
#include "display/ili9341.h"
#include "3rd_party/ili9341_adafruit.h"

Macros
#define	XYSTACK 64
	X,Y point stack. More...

#define	MAXVEC 24
	find beginning and end of all non-matching color transitions in a line FIXME: not tested yet More...

#define	HSPI_PIX ((HSPI_FIFO_SIZE-2)/3)
	Read Rectangle and return 16bit color array in 565 RGB format We clip the window to the current view Note: TFT Chip Select must be asserted for each block read As soon as chip select goes high the read aborts! We break up the data into chunks with a Memory Read, followed by Memory Read Continue So we use Memory Read and Memory Read Continue. More...

#define	USE_OPTIMIZATION_DRAWLINE

Functions
void	tft_Cmd (uint8_t cmd)
	Transmit 8 bit command. More...

uint8_t	tft_Data (uint8_t data)
	Transmit 8 bit data amd read 8bit data. More...

void	tft_Cmd_Data_TX (uint8_t cmd, uint8_t *data, int bytes)
	Transmit 8 bit command and optionally send data buffer. More...

int32_t	tft_abs_window (window *win, int16_t x, int16_t y, int16_t w, int16_t h)
	============================================================= More...

int32_t	tft_rel_window (window *win, int16_t x, int16_t y, int16_t w, int16_t h)
	Set the ili9341 working window by relative position and size Note: Function clips x,y,w,y. More...

MEMSPACE uint32_t	tft_readRegister (uint8_t command, uint8_t parameter)
	==================================== More...

MEMSPACE uint32_t	tft_readId (void)
	Read ILI9341 device ID should be 9341 This does not work for really high SPI clock speeds Make sure that when called the clock speed in reduced. More...

void	tft_bit_blit (window win, uint8_t ptr, int16_t x, int16_t y, int16_t w, int16_t h)
	BLIT functions More...

void	tft_fillWin (window *win, uint16_t color)
	Fill functions More...

void	tft_flood (window *win, int16_t x, int16_t y, uint16_t border, uint16_t fill)
	Flood fill. More...

int	tft_push_xy (int16_t x, int16_t y)
	point push More...

int	tft_pop_xy (int16_t x, int16_t y)
	point push More...

int	tft_floodline (window *win, int16_t x, int16_t y, uint16_t border, uint16_t fill)
	Flood using line fill method. More...

int	tft_FillPolyLine (window *win, int16_t x, int16_t y, int w, uint16_t color)

void	tft_fillRectWH (window *win, int16_t x, int16_t y, int16_t w, int16_t h, uint16_t color)
	Partial window Fill with color We clip the window to the current view. More...

void	tft_fillRectXY (window *win, int16_t x, int16_t y, int16_t xl, int16_t yl, uint16_t color)
	Fill rectangle with color We clip the window to the current view. More...

void	tft_drawPixel (window *win, int16_t x, int16_t y, int16_t color)
	Pixel functions More...

void	tft_writeRect (window win, int16_t x, int16_t y, int16_t w, int16_t h, uint16_t color)
	Write a rectangle pixel array. More...

void	tft_readRect (window win, int16_t x, int16_t y, int16_t w, int16_t h, uint16_t color)

void	tft_Vscroll (window *win, int dir)
	Scroll window up by dir lines We start at the top of the window and move down. More...

uint16_t	tft_readPixel (window *win, int16_t x, int16_t y)
	Read one pixel and return color in 1bit 565 RGB format We clip the window to the current view Note: Read Memory must be done in a continious write/read operation Chip select can not be deactivated for the transaction. More...

MEMSPACE void	tft_setRotation (uint8_t m)
	Set Display rotation, applies to the master window only Set hardware display rotation and memory fill option bits Update software display limits FIXME Work in progress. More...

void	tft_565toRGB (uint16_t color, uint8_t r, uint8_t g, uint8_t *b)
	Color conversions More...

MEMSPACE void	tft_invertDisplay (int flag)
	Invert the display. More...

MEMSPACE int	tft_window_clip (window *win)
	Clip window structure to TFT limits. More...

MEMSPACE void	tft_clip_xy (window win, int16_t X, int16_t *Y)
	Clip X,Y to fix inside specifiied window. More...

MEMSPACE int	tft_window_clip_args (window win, int16_t x, int16_t y, int16_t w, int16_t *h)
	clip arguments to window limits Arguments position x,y width w and height h to be clipped More...

MEMSPACE void	tft_window_init (window *win, int16_t x, int16_t y, int16_t w, int16_t h)
	Initialize window structure we default values FIXME check x+w, y+h absolute limits against TFT limuts. More...

MEMSPACE void	tft_setTextColor (window *win, uint16_t fg, uint16_t bg)
	==================================== More...

MEMSPACE void	tft_setpos (window *win, int16_t x, int16_t y)
	Set current window text pointer in pixels (per current rotation) More...

MEMSPACE void	tft_set_textpos (window *win, int16_t x, int16_t y)
	Set current window text pointer in characters (per current rotation) - overall font bounding box. More...

MEMSPACE void	tft_set_font (window *win, uint16_t index)
	Set current font size (per current rotation) More...

MEMSPACE void	tft_font_fixed (window *win)

MEMSPACE void	tft_font_var (window *win)
	Set current font type to variable. More...

int	tft_get_font_height (window *win)
	Get font height. More...

void	tft_drawFastVLine (window *win, int16_t x, int16_t y, int16_t h, uint16_t color)
	Fast virtical line drawing. More...

void	tft_drawFastHLine (window *win, int16_t x, int16_t y, int16_t w, uint16_t color)
	Fast virtical line drawing. More...

void	tft_drawLine (window *win, int16_t x0, int16_t y0, int16_t x1, int16_t y1, uint16_t color)
	Draw line From my blit test code testit.c 1984 - 1985 Mike Gore. More...

int	tft_Bezier2 (window *win, p2_int16_t S, p2_int16_t C, p2_int16_t T, int steps, uint16_t color)
	Draw lines between points along Quadratic Bézier curve Quadratic Bézier with respect to t, see https://en.wikipedia.org/wiki/Bézier_curve B(t) = (1-t)(1-t)S + 2(1-t)tC + tt*T, 0 <= t <= 1. More...

int	tft_Bezier3 (window *win, p2_int16_t S, p2_int16_t C1, p2_int16_t C2, p2_int16_t T, int steps, uint16_t color)
	Draw lines between points along Cubic Bézier curve Quadratic Bézier with respect to t, see https://en.wikipedia.org/wiki/Bézier_curve B(t) = (1-t)(1-t)(1-t)S + 3(1-t)(1-t)tC1 + 3(1-t)ttC2 + ttt*T, 0 <= t <= 1. More...

MEMSPACE void	tft_cleareol (window *win)
	Character and String functions More...

MEMSPACE void	tft_clearline (window *win)
	Clear display text line. More...

void	tft_putch (window *win, int c)
	put character in current winoow More...

Variables
window	tftwin

window *	tft = &tftwin

struct {
int16_t x [XYSTACK+2]

int16_t y [XYSTACK+2]

int ind

}	xy

Detailed Description

ili9341 driver inspired by Adafruit ili9341 code All code in this file has been rewritten by Mike Gore

Copyright © 2015 Mike Gore, GPL License

You are free to use this code under the terms of GPL: please retain a copy of this notice in any code you use it in.

Copyright © 2013 Adafruit Industries. All rights reserved.

See also: https://github.com/adafruit/Adafruit-GFX-Library

Line drawing function CERTS

See also: https://github.com/CHERTS/esp8266-devkit/tree/master/Espressif/examples/esp8266_ili9341

This is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version.

This software is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.

You should have received a copy of the GNU General Public License along with this program. If not, see http://www.gnu.org/licenses/.

Definition in file ili9341.c.

Macro Definition Documentation

#define HSPI_PIX ((HSPI_FIFO_SIZE-2)/3)

Read Rectangle and return 16bit color array in 565 RGB format We clip the window to the current view Note: TFT Chip Select must be asserted for each block read As soon as chip select goes high the read aborts! We break up the data into chunks with a Memory Read, followed by Memory Read Continue So we use Memory Read and Memory Read Continue.

Parameters

[in]	win*	window structure
[in]	x	X offset
[in]	y	Y offset
[in]	w	Width
[in]	h	Height
[in]	*color	pixel array in 565 format Number of pixels FIFO can hold We also include the 2 byte Memory Read / Continue opcodes;

Definition at line 835 of file ili9341.c.

#define MAXVEC 24

find beginning and end of all non-matching color transitions in a line FIXME: not tested yet

Parameters

[in]	win*	window structure
[in]	x	X position to start scan
[in]	y	Y line to scan
[in]	*vec	start and end of transition offsets
[in]	count	maximum size of transitions to save
[in]	color	match color @ return true count of saved transitions

Definition at line 509 of file ili9341.c.

Referenced by tft_FillPolyLine().

#define USE_OPTIMIZATION_DRAWLINE

#define XYSTACK 64

X,Y point stack.

Definition at line 369 of file ili9341.c.

Referenced by tft_push_xy().

Function Documentation

void tft_565toRGB	(	uint16_t	color,
		uint8_t *	r,
		uint8_t *	g,
		uint8_t *	b
	)

Color conversions

====================================Convert 16bit colr into 8-bit (each) R,G,B ILI9341 defaults to MSB/LSB data so we have to reverse it

Parameters

[in]	color	16bit color
[out]	*r	red data
[out]	*b	blue data
[out]	*g	green data

Definition at line 1033 of file ili9341.c.

int32_t tft_abs_window	(	window *	win,
		int16_t	x,
		int16_t	y,
		int16_t	w,
		int16_t	h
	)

=============================================================

====================================

window limits

Set the ili9341 working window by absolute position and size Note: Function clips x,y,w,y

Parameters

[in]	x	Starting X offset
[in]	y	Starting Y offset
[in]	w	Width
[in]	h	Height

Returns: (w * h) after clipping

Definition at line 101 of file ili9341.c.

Referenced by tft_rel_window().

int tft_Bezier2	(	window *	win,
		p2_int16_t	S,
		p2_int16_t	C,
		p2_int16_t	T,
		int	steps,
		uint16_t	color
	)

Draw lines between points along Quadratic Bézier curve Quadratic Bézier with respect to t, see https://en.wikipedia.org/wiki/Bézier_curve B(t) = (1-t)*(1-t)*S + 2*(1-t)*t*C + t*t*T, 0 <= t <= 1.

====================================

Interpolation functions

The path traced by the function B(t), given points S, C, and T, S = initial points C = control points T = target points

Derivative of the Bézier curve with respect to t B'(t) = 2*(1-t)*(C-S) + 2*t*(T-C)

Second derivative of the Bézier curve with respect to t is B"(t) = 2*(T-2*C+S)

As t increases from 0 to 1, the curve departs from S in the direction of C, then bends to arrive at T from the direction of C. The tangents to the curve at S and T intersect at C.

Parameters

[in]	*win	Window Structure of active window
[in]	S	Start
[in]	C	Control
[in]	T	Target
[in]	steps	line segments along curve (1..N)
[in]	color	Line color

Returns: count of line segments

Definition at line 1474 of file ili9341.c.

int tft_Bezier3	(	window *	win,
		p2_int16_t	S,
		p2_int16_t	C1,
		p2_int16_t	C2,
		p2_int16_t	T,
		int	steps,
		uint16_t	color
	)

Draw lines between points along Cubic Bézier curve Quadratic Bézier with respect to t, see https://en.wikipedia.org/wiki/Bézier_curve B(t) = (1-t)(1-t)*(1-t)*S + 3*(1-t)(1-t)*t*C1 + 3(1-t)*t*t*C2 + t*t*t*T, 0 <= t <= 1.

The path traced by the function B(t), given points S, C, and T, S = initial points C1 = control point 1 C2 = control point 2 T = target points

Derivative of the Bézier curve with respect to t B'(t) = 3(1-t)*(1-t)*(C1-S) + 6*(1-t)*t*(C2-C1) + 3*t*t*(T-C2)

Second derivative of the Bézier curve with respect to t is B"(t) = 6*(1-t)*(C2-2*C1+S) + 6*t*(T-2*C2+C1)

The curve starts at S and moves toward C1 and on to T from the direction of C2. Points C1 and C2 provide directional information and the distance between them determines "how far" and "how fast" the curve moves towards C1 before turning towards C2.

Parameters

[in]	*win	Window Structure of active window
[in]	S	Start
[in]	C1	Control 1
[in]	C2	Control 2
[in]	T	Target
[in]	steps	line segments along curve (1..N)
[in]	color	Line color

Returns: count of line segments

Definition at line 1545 of file ili9341.c.

void tft_bit_blit	(	window *	win,
		uint8_t *	ptr,
		int16_t	x,
		int16_t	y,
		int16_t	w,
		int16_t	h
	)

BLIT functions

BLIT a bit array to the display

Parameters

[in]	win*	window structure
[in]	*ptr	bit array w * h in size
[in]	x	BLITX offset
[in]	y	BLIT Y offset
[in]	w	BLIT Width
[in]	h	BLIT Height

Returns: void TODO CLIP window - depends on blit array

Definition at line 234 of file ili9341.c.

Referenced by tft_drawChar().

MEMSPACE void tft_cleareol ( window * win )

Character and String functions

====================================Clear display to end of line

Parameters

[in] win* window structure return: void, win->x = win->w

Definition at line 1601 of file ili9341.c.

Referenced by tft_putch(), and user_loop().

MEMSPACE void tft_clearline ( window * win )

Clear display text line.

Parameters

[in] win* window structure return: void, win->x = 0

Definition at line 1621 of file ili9341.c.

MEMSPACE void tft_clip_xy	(	window *	win,
		int16_t *	X,
		int16_t *	Y
	)

Clip X,Y to fix inside specifiied window.

Parameters

[in]	*win	window structure
[in]	*X	X position in window
[in]	*Y	Y position is window return: void

Definition at line 1114 of file ili9341.c.

void tft_Cmd ( uint8_t cmd )

Transmit 8 bit command.

=============================================================

Parameters

[in] cmd display command return: void status is in data array - bytes in size

Definition at line 53 of file ili9341.c.

Referenced by tft_bit_blit(), tft_Cmd_Data_TX(), tft_FillPolyLine(), tft_fillRectWH(), tft_invertDisplay(), tft_readPixel(), tft_readRect(), tft_readRegister(), and tft_writeRect().

void tft_Cmd_Data_TX	(	uint8_t	cmd,
		uint8_t *	data,
		int	bytes
	)

Transmit 8 bit command and optionally send data buffer.

Parameters

[in]	cmd	display command
[in]	*data	data buffer to send after command
[in]	bytes	data buffer size return: void status is in data array - bytes in size

Definition at line 72 of file ili9341.c.

Referenced by tft_abs_window(), tft_configRegister(), tft_drawPixel(), and tft_setRotation().

uint8_t tft_Data ( uint8_t data )

Transmit 8 bit data amd read 8bit data.

Parameters

[in] data display command return: read result

Definition at line 61 of file ili9341.c.

Referenced by tft_readRegister().

void tft_drawFastHLine	(	window *	win,
		int16_t	x,
		int16_t	y,
		int16_t	w,
		uint16_t	color
	)

Fast virtical line drawing.

Parameters

[in]	*win	window structure
[in]	x	X offset
[in]	y	Y offset
[in]	w	Width of line
[in]	color	Color

Returns: void

Definition at line 1329 of file ili9341.c.

Referenced by tft_drawRect(), tft_drawRoundRect(), tft_FillPolyLine(), and tft_fillTriangle().

void tft_drawFastVLine	(	window *	win,
		int16_t	x,
		int16_t	y,
		int16_t	h,
		uint16_t	color
	)

Fast virtical line drawing.

Parameters

[in]	*win	window structure
[in]	x	X offset
[in]	y	Y offset
[in]	h	Height of line
[in]	color	Color

Returns: void

Definition at line 1314 of file ili9341.c.

Referenced by tft_drawRect(), tft_drawRoundRect(), tft_fillCircle(), and tft_fillCircleHelper().

void tft_drawLine	(	window *	win,
		int16_t	x0,
		int16_t	y0,
		int16_t	x1,
		int16_t	y1,
		uint16_t	color
	)

Draw line From my blit test code testit.c 1984 - 1985 Mike Gore.

Parameters

[in]	win*	window structure
[in]	x0	X Start
[in]	y0	Y Start
[in]	x1	X End
[in]	y1	Y End
[in]	color	color to set

Returns: void Draw line Draw line from CERTS https://github.com/CHERTS/esp8266-devkit/tree/master/Espressif/examples/esp8266_ili9341

Parameters

[in]	win*	window structure
[in]	x0	X Start
[in]	y0	Y Start
[in]	x1	X End
[in]	y1	Y End
[in]	color	color to set

Returns: void

Definition at line 1389 of file ili9341.c.

Referenced by tft_Bezier2(), tft_Bezier3(), tft_drawFastHLine(), tft_drawTriangle(), and wire_draw().

void tft_drawPixel	(	window *	win,
		int16_t	x,
		int16_t	y,
		int16_t	color
	)

Pixel functions

====================================Draw one pixel set to color in 16bit 565 RGB format We clip the window to the current view

Parameters

[in]	win*	window structure
[in]	x	X Start
[in]	y	Y Start
[in]	color	color to set

Returns: void

Definition at line 717 of file ili9341.c.

Referenced by tft_bit_blit(), tft_drawCircle(), tft_drawCircleHelper(), tft_drawFastHLine(), tft_flood(), tft_floodline(), tft_writeRect(), and user_tests().

int tft_FillPolyLine	(	window *	win,
		int16_t	x,
		int16_t	y,
		int	w,
		uint16_t	color
	)

Definition at line 510 of file ili9341.c.

void tft_fillRectWH	(	window *	win,
		int16_t	x,
		int16_t	y,
		int16_t	w,
		int16_t	h,
		uint16_t	color
	)

Partial window Fill with color We clip the window to the current view.

Parameters

[in]	win*	window structure
[in]	x	X Start
[in]	y	Y Start
[in]	w	Width
[in]	h	Height
[in]	color	Fill color

Returns: void

Definition at line 627 of file ili9341.c.

Referenced by tft_cleareol(), tft_clearline(), tft_drawChar(), tft_drawFastHLine(), tft_drawFastVLine(), tft_fillRectXY(), tft_fillRoundRect(), tft_fillWin(), tft_putch(), and tft_Vscroll().

void tft_fillRectXY	(	window *	win,
		int16_t	x,
		int16_t	y,
		int16_t	xl,
		int16_t	yl,
		uint16_t	color
	)

Fill rectangle with color We clip the window to the current view.

Parameters

[in]	win*	window structure
[in]	x	X Start
[in]	y	Y Start
[in]	xl	X End
[in]	yl	Y End
[in]	color	Fill color

Returns: void

Definition at line 690 of file ili9341.c.

Referenced by tft_drawFastHLine().

void tft_fillWin	(	window *	win,
		uint16_t	color
	)

Fill functions

====================================Fill window

Parameters

[in]	win*	window structure
[in]	color	Fill color

Definition at line 334 of file ili9341.c.

Referenced by test_types(), tft_init(), and tft_putch().

void tft_flood	(	window *	win,
		int16_t	x,
		int16_t	y,
		uint16_t	border,
		uint16_t	fill
	)

Flood fill.

See also: https://en.wikipedia.org/wiki/Flood_fill This method can eat all your ram with "busy" images and could crash

Parameters

[in]	win*	window structure
[in]	border	border color
[in]	fill	Fill color

Definition at line 346 of file ili9341.c.

Referenced by tft_flood().

int tft_floodline	(	window *	win,
		int16_t	x,
		int16_t	y,
		uint16_t	border,
		uint16_t	fill
	)

Flood using line fill method.

See also: https://en.wikipedia.org/wiki/Flood_fill FIXME: not tested yet

Parameters

[in]	win*	window structure
[in]	x	X position to fill from
[in]	y	Y position to fill from
[in]	border	border color
[in]	fill	Fill color @ return true one success, 0 of stack overflow

Definition at line 416 of file ili9341.c.

MEMSPACE void tft_font_fixed ( window * win )

Only works if font is proportional type

Parameters

[in] win* window structure return: void

Definition at line 1278 of file ili9341.c.

Referenced by user_loop().

MEMSPACE void tft_font_var ( window * win )

Set current font type to variable.

Parameters

[in] win* window structure return: void

Definition at line 1288 of file ili9341.c.

Referenced by test_types().

int tft_get_font_height ( window * win )

Get font height.

Parameters

[in] win* window structure return: font Height or zero on error

Definition at line 1296 of file ili9341.c.

MEMSPACE void tft_invertDisplay ( int flag )

Invert the display.

Parameters

[in] flag true or false

Returns: void

Definition at line 1045 of file ili9341.c.

int tft_pop_xy	(	int16_t *	x,
		int16_t *	y
	)

point push

Parameters

[in]	x	X
[in]	y	Y @ return true if data exists, 0 of none

Definition at line 397 of file ili9341.c.

Referenced by tft_floodline().

int tft_push_xy	(	int16_t	x,
		int16_t	y
	)

point push

Parameters

[in]	x	X
[in]	y	Y @ return true on success, 0 of stack overflow

Definition at line 380 of file ili9341.c.

Referenced by tft_floodline().

void tft_putch	(	window *	win,
		int	c
	)

put character in current winoow

Parameters

[in]	win*	window structure
[in]	c	character return: void

Definition at line 1643 of file ili9341.c.

Referenced by _putc_win(), and _putc_win_len().

MEMSPACE uint32_t tft_readId ( void )

Read ILI9341 device ID should be 9341 This does not work for really high SPI clock speeds Make sure that when called the clock speed in reduced.

See also: tft_init

Returns: 32bit value with DIPLAY ID

Paramter 0 is unused See Read ID4 Command ( 0xd3 ) for a description of the parameters

Definition at line 206 of file ili9341.c.

Referenced by tft_init().

uint16_t tft_readPixel	(	window *	win,
		int16_t	x,
		int16_t	y
	)

Read one pixel and return color in 1bit 565 RGB format We clip the window to the current view Note: Read Memory must be done in a continious write/read operation Chip select can not be deactivated for the transaction.

Parameters

[in]	win*	window structure
[in]	x	X Start
[in]	y	Y Start

Returns: color in 565 format

Definition at line 952 of file ili9341.c.

Referenced by tft_flood(), tft_floodline(), and user_tests().

void tft_readRect	(	window *	win,
		int16_t	x,
		int16_t	y,
		int16_t	w,
		int16_t	h,
		uint16_t *	color
	)

Definition at line 837 of file ili9341.c.

Referenced by loop(), and tft_Vscroll().

MEMSPACE uint32_t tft_readRegister	(	uint8_t	command,
		uint8_t	parameter
	)

====================================

====================================================================== SPIRead parameters on SPI bus ILI9341 displays For those displays that do not have the EXTC pin asserted. This undocumented command overrides the restriction for reading command parameters. Notes: SPI configurations See M:[0-3] control bits in ILI9341 documenation

Refer to interface I and II modes. Most ILI9341 displays are using interface I, (Rather the interface II mode)
Parameters

[in] command command whose parameters we want to read

[in] parameter parameter number

Returns
16bit value

Definition at line 166 of file ili9341.c.

Referenced by tft_readId().

int32_t tft_rel_window	(	window *	win,
		int16_t	x,
		int16_t	y,
		int16_t	w,
		int16_t	h
	)

Set the ili9341 working window by relative position and size Note: Function clips x,y,w,y.

Parameters

[in]	win*	window structure
[in]	x	Starting X offset
[in]	y	Starting Y offset
[in]	w	Width
[in]	h	Height

Returns: bytes w * h after clipping, 0 on error

Definition at line 140 of file ili9341.c.

Referenced by tft_bit_blit(), tft_drawPixel(), tft_FillPolyLine(), tft_fillRectWH(), tft_readPixel(), tft_readRect(), and tft_writeRect().

MEMSPACE void tft_set_font	(	window *	win,
		uint16_t	index
	)

Set current font size (per current rotation)

Parameters

[in]	win*	window structure
[in]	index	font index (for array of fonts) return: void

Definition at line 1267 of file ili9341.c.

Referenced by test_types(), and user_loop().

MEMSPACE void tft_set_textpos	(	window *	win,
		int16_t	x,
		int16_t	y
	)

Set current window text pointer in characters (per current rotation) - overall font bounding box.

Parameters

[in]	win*	window structure
[in]	x	x offset
[in]	y	y oofset return: void

Definition at line 1254 of file ili9341.c.

Referenced by test_types(), and user_loop().

MEMSPACE void tft_setpos	(	window *	win,
		int16_t	x,
		int16_t	y
	)

Set current window text pointer in pixels (per current rotation)

Parameters

[in]	win*	window structure
[in]	x	x offset
[in]	y	y oofset return: void

Definition at line 1241 of file ili9341.c.

MEMSPACE void tft_setRotation ( uint8_t m )

Set Display rotation, applies to the master window only Set hardware display rotation and memory fill option bits Update software display limits FIXME Work in progress.

do we want to handle exchanging min/max values - rather then set them ?
Returns
void

Definition at line 982 of file ili9341.c.

Referenced by test_types(), tft_init(), and user_tests().

MEMSPACE void tft_setTextColor	(	window *	win,
		uint16_t	fg,
		uint16_t	bg
	)

====================================

Set text forground and background color

Parameters

[in]	win*	window structure
[in]	fg	forground color
[in]	bg	background color

Returns: void

Definition at line 1228 of file ili9341.c.

Referenced by test_types().

void tft_Vscroll	(	window *	win,
		int	dir
	)

Scroll window up by dir lines We start at the top of the window and move down.

Parameters

[in]	win*	window structure
[in]	dir	direction and count TODO +/- scroll direction TODO +/- Horizontal scroll functions

Definition at line 903 of file ili9341.c.

Referenced by tft_drawChar().

MEMSPACE int tft_window_clip ( window * win )

Clip window structure to TFT limits.

Parameters

[in] win* window structure

Returns: 0 - or - count of clipped values FIXME check negitive offsets, etc

Definition at line 1059 of file ili9341.c.

MEMSPACE int tft_window_clip_args	(	window *	win,
		int16_t *	x,
		int16_t *	y,
		int16_t *	w,
		int16_t *	h
	)

clip arguments to window limits Arguments position x,y width w and height h to be clipped

Parameters

[in]	*win	window structure we will use to clip arguments to.
[in]	*x	X argument offset
[in]	*y	Y argument offset
[in]	*w	W argument width
[in]	*h	H argument height

Returns: void FIXME check negitive offsets, etc

Definition at line 1145 of file ili9341.c.

Referenced by tft_abs_window(), tft_bit_blit(), and tft_window_init().

MEMSPACE void tft_window_init	(	window *	win,
		int16_t	x,
		int16_t	y,
		int16_t	w,
		int16_t	h
	)

Initialize window structure we default values FIXME check x+w, y+h absolute limits against TFT limuts.

Parameters

[in]	win*	window structure
[in]	x	X offset to window start - absolute
[in]	y	Y offset to window start - absolute
[in]	w	Window width
[in]	h	Window Height

Returns: void

Definition at line 1198 of file ili9341.c.

Referenced by test_types(), and tft_init().

void tft_writeRect	(	window *	win,
		int16_t	x,
		int16_t	y,
		int16_t	w,
		int16_t	h,
		uint16_t *	color
	)

Write a rectangle pixel array.

Parameters

[in]	win*	window structure
[in]	x	X offset
[in]	y	Y offset
[in]	w	Width
[in]	h	Height
[in]	*color	pixel array in 565 format

Returns: void

Definition at line 745 of file ili9341.c.

Referenced by tft_drawBitmap(), and tft_Vscroll().

Variable Documentation

int ind

Definition at line 373 of file ili9341.c.

Referenced by buffer_gets(), dirname(), fatfs_tests(), fgets(), match_headers(), p_ntoa(), posix_tests(), ReadBdf(), tft_Bezier2(), tft_Bezier3(), tft_bit_blit(), tft_FillPolyLine(), tft_fillRectWH(), tft_writeRect(), and user_tests().

window* tft = &tftwin

Definition at line 45 of file ili9341.c.

window tftwin

Definition at line 44 of file ili9341.c.

int16_t x[XYSTACK+2]

Definition at line 371 of file ili9341.c.

Referenced by asinCordic(), bitclrxy(), bitsetxy(), bittestxy(), Circular(), ComputeGapSize(), cordit1(), FontAdjustFull(), FontAdjustSmall(), FontPreview(), FontPreviewFull(), FontPreviewProportional(), loop(), main(), ReadBdf(), rotate(), test_types(), tft_clip_xy(), tft_drawCircle(), tft_drawCircleHelper(), tft_fillCircleHelper(), tft_FillPolyLine(), tft_floodline(), tft_push_xy(), tft_setpos(), tft_window_init(), user_tests(), and WriteCharacterBits().

struct { ... } xy

Referenced by tft_floodline(), tft_pop_xy(), and tft_push_xy().

int16_t y[XYSTACK+2]

Definition at line 372 of file ili9341.c.

Referenced by asinCordic(), Circular(), ComputeGapSize(), cordit1(), FontAdjustFull(), FontAdjustSmall(), FontPreview(), FontPreviewFull(), FontPreviewProportional(), loop(), main(), rotate(), test_types(), tft_clip_xy(), tft_drawCircle(), tft_drawCircleHelper(), tft_fillCircleHelper(), tft_fillTriangle(), tft_push_xy(), tft_setpos(), tft_window_init(), user_tests(), and WriteCharacterBits().

[in]	command	command whose parameters we want to read
[in]	parameter	parameter number

Macros

Functions

BLIT functions

Fill functions

Pixel functions

Color conversions

Character and String functions

Variables

Detailed Description

Macro Definition Documentation

Function Documentation

Color conversions

window limits

Interpolation functions

BLIT functions

Character and String functions

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Pixel functions

Fill functions

Variable Documentation