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added demos/3thparty

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Joel Bodenmann 2013-04-14 22:36:24 +02:00
parent df5c3fd6dd
commit 3eea362fae
6 changed files with 398 additions and 0 deletions
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40
demos/3thparty/boing/gfxconf.h Normal file
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/**
* This file has a different license to the rest of the GFX system.
* You can copy, modify and distribute this file as you see fit.
* You do not need to publish your source modifications to this file.
* The only thing you are not permitted to do is to relicense it
* under a different license.
*/
#ifndef _GFXCONF_H
#define _GFXCONF_H
/* GFX sub-systems to turn on */
#define GFX_USE_GDISP TRUE
#define GFX_USE_GWIN FALSE
#define GFX_USE_GEVENT FALSE
#define GFX_USE_GTIMER FALSE
#define GFX_USE_GINPUT FALSE
/* Features for the GDISP sub-system. */
#define GDISP_NEED_VALIDATION FALSE
#define GDISP_NEED_CLIP FALSE
#define GDISP_NEED_TEXT FALSE
#define GDISP_NEED_CIRCLE FALSE
#define GDISP_NEED_ELLIPSE FALSE
#define GDISP_NEED_ARC FALSE
#define GDISP_NEED_SCROLL FALSE
#define GDISP_NEED_PIXELREAD FALSE
#define GDISP_NEED_CONTROL FALSE
#define GDISP_NEED_MULTITHREAD FALSE
#define GDISP_NEED_ASYNC FALSE
#define GDISP_NEED_MSGAPI FALSE
/* Builtin Fonts */
#define GDISP_INCLUDE_FONT_SMALL FALSE
#define GDISP_INCLUDE_FONT_LARGER FALSE
#define GDISP_INCLUDE_FONT_UI1 FALSE
#define GDISP_INCLUDE_FONT_UI2 FALSE
#define GDISP_INCLUDE_FONT_LARGENUMBERS FALSE
#endif /* _GFXCONF_H */

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demos/3thparty/boing/main.c Normal file
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/* Derived from the 2011 IOCCC submission by peter.eastman@gmail.com
* http://www.ioccc.org/2011/eastman/eastman.c
* --
* Public Domain -- but you're looking at this for ideas of techniques
* and methods, not trying to cut&paste an entire application, anyway.
* --
* When you need to blit an entire screenfull of data to an LCD
* display, the basic idea is to exploit the auto-increment feature of
* the display controller when it writes to screen memory. You start
* by resetting the 'cursor' to the 0,0 position, and then stream
* width*height pixels out.
* --
* Chris Baird,, <cjb@brushtail.apana.org.au> April 2013
*/
#include <math.h>
#include "ch.h"
#include "hal.h"
#include "gfx.h"
#include "ssd2119.h"
#define Lightgrey (HTML2COLOR(0xC0C0C0))
#define Midgrey (HTML2COLOR(0x606060))
#define Darkgrey (HTML2COLOR(0x303030))
/* ---------------------------------------------------------------------- */
/* As of early April 2013, the /gfx extension tries to keep the low-level
* stuff away from our filthy paws. So Code Duplication.
* (Possibly to be replaced with gdispStartStream(), gdispWriteStream()
* and gdispStopStream() in the future.)
*/
#define GDISP_REG (*((volatile uint16_t *) 0x60000000)) /* DC = 0 */
#define GDISP_RAM (*((volatile uint16_t *) 0x60100000)) /* DC = 1 */
inline void write_index (uint16_t index) { GDISP_REG = index; }
inline void write_data (uint16_t data) { GDISP_RAM = data; }
#define write_reg(reg, data) { write_index(reg); write_data(data); }
void reset_cursor (void)
{
write_reg (SSD2119_REG_X_RAM_ADDR, 0);
write_reg (SSD2119_REG_Y_RAM_ADDR, 0);
}
#define StartStream() { write_index (SSD2119_REG_RAM_DATA); }
#define WriteStream(x) { write_data (x); }
#define StopStream() /* NOP */
/* ---------------------------------------------------------------------- */
void main (void)
{
uint16_t xx, yy, colour;
halInit();
chSysInit();
gdispInit();
uint16_t width = (uint16_t)gdispGetWidth();
uint16_t height = (uint16_t)gdispGetHeight();
float i=height/5+height%2+1, floorstart=height/5-1, spherespin=0.0,
l=width/2, m=height/4, n=.01*width, o=0.0, rotspeed=0.1, h, f, g;
while (TRUE)
{
reset_cursor ();
StartStream ();
for (xx=yy=0;
h = (m-yy)/i, f=-.3*(g=(l-xx)/i)+.954*h, yy<height;
yy += (xx = ++xx%width)==0 )
{
if (g*g < 1-h*h) /* if inside the ball */
if (((int)(9-spherespin+(.954*g+.3*h)/sqrtf(1-f*f))+(int)(2+f*2))%2==0)
colour = Red;
else
colour = White;
else
{
if (xx<floorstart || xx>width-floorstart)
colour = Darkgrey; /* side wall */
else
colour = Lightgrey; /* back wall */
if (yy > height-floorstart)
if (xx < height-yy || height-yy > width-xx) /* floor */
colour = Darkgrey;
else
colour = Midgrey;
if (g*(g+.6)+.09+h*h < 1)
colour >>= 1; /* ball shadow; make it darker */
}
WriteStream (colour); /* pixel to the LCD */
}
StopStream();
spherespin += rotspeed;
m += o;
o = m > height-1.75*floorstart ? -.04*height : o+.002*height;
n = (l+=n)<i || l>width-i ? rotspeed=-rotspeed,-n : n;
}
}
/* ---------------------------------------------------------------------- */

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demos/3thparty/bubbles/.gdbinit Normal file
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target extended-remote :4242
file build/ch.elf

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demos/3thparty/bubbles/gfxconf.h Normal file
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/**
* This file has a different license to the rest of the GFX system.
* You can copy, modify and distribute this file as you see fit.
* You do not need to publish your source modifications to this file.
* The only thing you are not permitted to do is to relicense it
* under a different license.
*/
#ifndef _GFXCONF_H
#define _GFXCONF_H
/* GFX sub-systems to turn on */
#define GFX_USE_GDISP TRUE
#define GFX_USE_GWIN FALSE
#define GFX_USE_GEVENT FALSE
#define GFX_USE_GTIMER FALSE
#define GFX_USE_GINPUT FALSE
/* Features for the GDISP sub-system. */
#define GDISP_NEED_VALIDATION FALSE
#define GDISP_NEED_CLIP FALSE
#define GDISP_NEED_TEXT FALSE
#define GDISP_NEED_CIRCLE TRUE
#define GDISP_NEED_ELLIPSE FALSE
#define GDISP_NEED_ARC FALSE
#define GDISP_NEED_SCROLL FALSE
#define GDISP_NEED_PIXELREAD FALSE
#define GDISP_NEED_CONTROL FALSE
#define GDISP_NEED_MULTITHREAD FALSE
#define GDISP_NEED_ASYNC FALSE
#define GDISP_NEED_MSGAPI FALSE
/* Builtin Fonts */
#define GDISP_INCLUDE_FONT_SMALL FALSE
#define GDISP_INCLUDE_FONT_LARGER FALSE
#define GDISP_INCLUDE_FONT_UI1 FALSE
#define GDISP_INCLUDE_FONT_UI2 FALSE
#define GDISP_INCLUDE_FONT_LARGENUMBERS FALSE
#endif /* _GFXCONF_H */

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/* Microcontroller graphic demo by Pascal Piazzalunga
* admin@serveurperso.com http://www.serveurperso.com
* https://www.youtube.com/watch?v=wyuJ-dqS2to
* Ported to stm32/ChibiOS/glx by Chris Baird.
* It's spinnin' bubbles, man.
* --
* Licencing? Ask Pascal. Let's assume it is freely-distributable and
* modifiable, provided his name is kept in the source.
* --
* Chris Baird,, <cjb@brushtail.apana.org.au> April 2013
*/
#include <math.h>
#include "ch.h"
#include "hal.h"
#include "gfx.h"
/* ---------------------------------------------------------------------- */
#define N 1024 /* Number of dots */
#define SCALE 8192
#define INCREMENT 512 /* INCREMENT = SCALE / sqrt(N) * 2 */
#define PI2 6.283185307179586476925286766559
#define background RGB2COLOR(0,0,0)
uint16_t width, height;
int16_t sine[SCALE+(SCALE/4)];
int16_t *cosi = &sine[SCALE/4]; /* cos(x) = sin(x+90d)... */
void initialize (void)
{
uint16_t i;
/* if you change the SCALE*1.25 back to SCALE, the program will
* occassionally overrun the cosi array -- however this actually
* produces some interesting effects as the BUBBLES LOSE CONTROL!!!!
*/
for (i = 0; i < SCALE+(SCALE/4); i++)
//sine[i] = (-SCALE/2) + (int)(sinf(PI2 * i / SCALE) * sinf(PI2 * i / SCALE) * SCALE);
sine[i] = (int)(sinf(PI2 * i / SCALE) * SCALE);
}
void matrix (int16_t xyz[3][N], color_t col[N])
{
static uint32_t t = 0;
int16_t x = -SCALE, y = -SCALE;
uint16_t i, s, d;
uint8_t red,grn,blu;
#define RED_COLORS (32)
#define GREEN_COLORS (64)
#define BLUE_COLORS (32)
for (i = 0; i < N; i++)
{
xyz[0][i] = x;
xyz[1][i] = y;
d = sqrtf(x * x + y * y); /* originally a fastsqrt() call */
s = sine[(t * 30) % SCALE] + SCALE;
xyz[2][i] = sine[(d + s) % SCALE] * sine[(t * 10) % SCALE] / SCALE / 2;
red = (cosi[xyz[2][i] + SCALE / 2] + SCALE) *
(RED_COLORS - 1) / SCALE / 2;
grn = (cosi[(xyz[2][i] + SCALE / 2 + 2 * SCALE / 3) % SCALE] + SCALE) *
(GREEN_COLORS - 1) / SCALE / 2;
blu = (cosi[(xyz[2][i] + SCALE / 2 + SCALE / 3) % SCALE] + SCALE) *
(BLUE_COLORS - 1) / SCALE / 2;
col[i] = ((red << 11) + (grn << 5) + blu);
x += INCREMENT;
if (x >= SCALE) x = -SCALE, y += INCREMENT;
}
t++;
}
void rotate (int16_t xyz[3][N], uint16_t angleX, uint16_t angleY, uint16_t angleZ)
{
uint16_t i;
int16_t tmpX, tmpY;
int16_t sinx = sine[angleX], cosx = cosi[angleX];
int16_t siny = sine[angleY], cosy = cosi[angleY];
int16_t sinz = sine[angleZ], cosz = cosi[angleZ];
for (i = 0; i < N; i++)
{
tmpX = (xyz[0][i] * cosx - xyz[2][i] * sinx) / SCALE;
xyz[2][i] = (xyz[0][i] * sinx + xyz[2][i] * cosx) / SCALE;
xyz[0][i] = tmpX;
tmpY = (xyz[1][i] * cosy - xyz[2][i] * siny) / SCALE;
xyz[2][i] = (xyz[1][i] * siny + xyz[2][i] * cosy) / SCALE;
xyz[1][i] = tmpY;
tmpX = (xyz[0][i] * cosz - xyz[1][i] * sinz) / SCALE;
xyz[1][i] = (xyz[0][i] * sinz + xyz[1][i] * cosz) / SCALE;
xyz[0][i] = tmpX;
}
}
void draw(int16_t xyz[3][N], color_t col[N])
{
static uint16_t oldProjX[N] = {0};
static uint16_t oldProjY[N] = {0};
static uint8_t oldDotSize[N] = {0};
uint16_t i, projX, projY, projZ, dotSize;
for (i = 0; i < N; i++)
{
projZ = SCALE - (xyz[2][i] + SCALE) / 4;
projX = width / 2 + (xyz[0][i] * projZ / SCALE) / 25;
projY = height / 2 + (xyz[1][i] * projZ / SCALE) / 25;
dotSize = 3 - (xyz[2][i] + SCALE) * 2 / SCALE;
gdispDrawCircle (oldProjX[i], oldProjY[i], oldDotSize[i], background);
if (projX > dotSize &&
projY > dotSize &&
projX < width - dotSize &&
projY < height - dotSize)
{
gdispDrawCircle (projX, projY, dotSize, col[i]);
oldProjX[i] = projX;
oldProjY[i] = projY;
oldDotSize[i] = dotSize;
}
}
}
/* ---------------------------------------------------------------------- */
int16_t angleX = 0, angleY = 0, angleZ = 0;
int16_t speedX = 0, speedY = 0, speedZ = 0;
int16_t xyz[3][N];
color_t col[N];
int main (void)
{
int pass = 0;
halInit();
chSysInit();
gdispInit();
chThdSleepMilliseconds (10);
gdispClear (background); /* glitches.. */
chThdSleepMilliseconds (10);
gdispClear (background); /* glitches.. */
chThdSleepMilliseconds (10);
gdispClear (background); /* glitches.. */
width = (uint16_t)gdispGetWidth();
height = (uint16_t)gdispGetHeight();
initialize();
for (;;)
{
matrix(xyz, col);
rotate(xyz, angleX, angleY, angleZ);
draw(xyz, col);
angleX += speedX;
angleY += speedY;
angleZ += speedZ;
if (pass > 400) speedY = 1;
if (pass > 800) speedX = 1;
if (pass > 1200) speedZ = 1;
pass++;
if (angleX >= SCALE) angleX -= SCALE;
else if (angleX < 0) angleX += SCALE;
if (angleY >= SCALE) angleY -= SCALE;
else if (angleY < 0) angleY += SCALE;
if (angleZ >= SCALE) angleZ -= SCALE;
else if (angleZ < 0) angleZ += SCALE;
}
}
/* ---------------------------------------------------------------------- */

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demos/3thparty/readme.txt Normal file
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In this directory, you can find different demos showing how to use ChibiOS/GFX.
The demos in these directories are contributions from users of the ChibiOS/GFX
project and come from different sources. Therefore, the source files of these
demos come with different licenses which can be found on top of the cor-
responding files.
Since these files are not part of the ChibiOS/GFX project, no support for these
demos is provided. And as with all software which can be found in the /demos
directory, use on your own risk. There's no warranty of the correctness
and function of the demos provided.