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/* Includes ------------------------------------------------------------------*/
#include "stm32f4xx_hal.h"
/* USER CODE BEGIN Includes */
#include "led_driver.h"
#include "globals.h"
#include <string.h>
#include <math.h>
#include <stdlib.h>
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#include "flash.h"
#include "image_generator.h"
/* USER CODE END Includes */
//#define NB_LEDS_PER_STRIP 60
//#define NB_LINES 20
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__attribute__((section("itcmram")))
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inline uint32_t getRawOffset(uint32_t column,uint32_t line)
{
return 3*(column+line*NB_COLUMNS);
}
// cf file LogoFiltered2.raw & cfromraw.cpp
// from LogoElectrolab.png
// 20 x 20 pixels
// Exploite la symtrie gauche droite => 10x20
const uint8_t logo_electrolab[200] =
{
0x09, 0x09, 0x09, 0x09, 0x09, 0x09, 0x0D, 0x1A, 0x28, 0x30,
0x09, 0x09, 0x09, 0x09, 0x0A, 0x1F, 0x50, 0x83, 0xA7, 0xB5,
0x09, 0x09, 0x09, 0x0C, 0x3B, 0x91, 0xD6, 0xEF, 0xEB, 0xE1,
0x09, 0x09, 0x0C, 0x4A, 0xB8, 0xEE, 0xD1, 0x93, 0x62, 0x4B,
0x09, 0x0A, 0x3F, 0xBB, 0xEF, 0xA9, 0x49, 0x17, 0x0A, 0x07,
0x09, 0x25, 0x9A, 0xF0, 0xA7, 0x33, 0x01, 0x01, 0x01, 0x01,
0x0F, 0x5B, 0xDF, 0xCE, 0x45, 0x0A, 0x00, 0xA4, 0xC5, 0xC5,
0x1F, 0x91, 0xF3, 0x8B, 0x15, 0x08, 0x00, 0x96, 0xF7, 0xF7,
0x30, 0xB5, 0xE9, 0x59, 0x09, 0x08, 0x00, 0x04, 0x0D, 0x0D,
0x39, 0xC3, 0xDC, 0x42, 0x08, 0x01, 0x00, 0x86, 0xAE, 0xAE,
0x38, 0xC2, 0xDD, 0x44, 0x08, 0x00, 0x00, 0x9F, 0xE8, 0xE8,
0x2E, 0xB1, 0xEB, 0x5F, 0x0A, 0x05, 0x00, 0x04, 0x0D, 0x0D,
0x1C, 0x88, 0xF2, 0x96, 0x19, 0x08, 0x00, 0x6A, 0x99, 0x99,
0x0D, 0x51, 0xD6, 0xD8, 0x54, 0x0C, 0x01, 0xB4, 0xEE, 0xEE,
0x09, 0x1D, 0x8A, 0xEE, 0xB9, 0x44, 0x02, 0x05, 0x0E, 0x0E,
0x09, 0x09, 0x32, 0xA9, 0xF0, 0xBE, 0x60, 0x24, 0x0F, 0x08,
0x09, 0x09, 0x0A, 0x39, 0xA3, 0xE9, 0xE1, 0xAE, 0x7F, 0x66,
0x09, 0x09, 0x09, 0x0A, 0x2B, 0x79, 0xC2, 0xE9, 0xF0, 0xEC,
0x09, 0x09, 0x09, 0x09, 0x09, 0x16, 0x3D, 0x6A, 0x8D, 0x9B,
0x09, 0x09, 0x09, 0x09, 0x09, 0x09, 0x0A, 0x12, 0x1C, 0x22
};
void putSpriteEL(uint8_t *raw, uint8_t offsetx, uint8_t *color)
{
uint32_t raw_offset;
int line, column;
int j;
for (line=0;line<20;line++)
{
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j = line*10;
raw_offset = getRawOffset(offsetx, line);
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for (column=0;column<20;column++)
{
// sequence j 0,1,2..9,9,8,7,...,1,0,0,1,2,...
if (column>=10)
j--;
raw[raw_offset++] = (color[0]*logo_electrolab[j])>>8;
raw[raw_offset++] = (color[1]*logo_electrolab[j])>>8;
raw[raw_offset++] = (color[2]*logo_electrolab[j])>>8;
if (column<10)
j++;
}
}
}
// vert vert vert...
uint8_t generateLogoElectrolab(uint8_t *raw, uint8_t intensity)
{
uint8_t offsetx;
uint8_t color[3];
offsetx = 0;
color[0] = 0;
color[1] = intensity;
color[2] = 0;
putSpriteEL(raw, offsetx, color);
offsetx = 20;
color[0] = 0;
color[1] = intensity;
color[2] = 0;
putSpriteEL(raw, offsetx, color);
offsetx = 40;
color[0] = 0;
color[1] = intensity;
color[2] = 0;
putSpriteEL(raw, offsetx, color);
return 0;
}
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__attribute__((section("dtcmram")))
float sintable[91] = {
0.000000,0.017452,0.034899,0.052336,0.069756,0.087156,0.104528,0.121869,
0.139173,0.156434,0.173648,0.190809,0.207912,0.224951,0.241922,0.258819,
0.275637,0.292372,0.309017,0.325568,0.342020,0.358368,0.374607,0.390731,
0.406737,0.422618,0.438371,0.453990,0.469472,0.484810,0.500000,0.515038,
0.529919,0.544639,0.559193,0.573576,0.587785,0.601815,0.615662,0.629320,
0.642788,0.656059,0.669131,0.681998,0.694658,0.707107,0.719340,0.731354,
0.743145,0.754710,0.766044,0.777146,0.788011,0.798635,0.809017,0.819152,
0.829038,0.838671,0.848048,0.857167,0.866025,0.874620,0.882948,0.891007,
0.898794,0.906308,0.913545,0.920505,0.927184,0.933580,0.939693,0.945519,
0.951057,0.956305,0.961262,0.965926,0.970296,0.974370,0.978148,0.981627,
0.984808,0.987688,0.990268,0.992546,0.994522,0.996195,0.997564,0.998630,
0.999391,0.999848,1.000000
};
// si pi/2 <= x <= pi
// sin(x) = sin(pi-x)
// si pi <= x <= 3/4 pi
// sin(x) = -sin(x-pi)
// si 3/4 pi <= x <= 2pi
// sin(x) = -sin(-(x-2pi))
__attribute__((section("itcmram")))
float myfsin(float x)
{
int i;
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// for plasma : that's the difference between 30hz and 70Hz...(with microlib)
// not using microlib makes it go to 100Hz.
i = /*fmod(x*180.0f/M_PI,360);*/ ((int) (x*180.0f/M_PI)) % 360;
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if (i<=90)
return sintable[i];
if (i<=180)
return sintable[180-i];
if (i<=270)
return -sintable[i-180];
return -sintable[-(i-360)];
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//cos(x) = sin(pi/2-x)
__attribute__((section("itcmram")))
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float myfcos(float x)
{
return myfsin(M_PI/2-x);
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__attribute__((section("itcmram")))
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uint8_t generatePlasma(uint8_t *raw,float u_time, uint8_t plasma_type, uint8_t intensity)
{
uint32_t raw_offset;
uint32_t line, column;
float u_k[2];
float v_coords[2];
float v;
float c[2];
uint8_t x;
uint8_t s1,s2,s4,c1;
u_k[0] = u_k[1] = 4;
for (line=0;line<NB_LINES;line++)
{
v_coords[1] = 1.0f*line/NB_LINES;
for (column=0;column<NB_COLUMNS;column++)
{
v_coords[0] = 1.0f*column/NB_COLUMNS;
raw_offset = getRawOffset(column, line);
c[0] = u_k[0]*(v_coords[0] - 0.5f);
c[1] = u_k[1]*(v_coords[1] - 0.5f);
v = myfsin( c[0]+u_time);
v += myfsin((c[1]+u_time)*0.5f);
v += myfsin((c[0]+c[1]+u_time)*0.5f);
c[0] += u_k[0]*0.5f * myfsin(u_time*0.33333f);
c[1] += u_k[1]*0.5f * myfcos(u_time*0.5f);
v += myfsin(sqrt(c[0]*c[0]+c[1]*c[1]+1.0f)+u_time);
v = v*0.5f;
switch(plasma_type)
{
// type RGB
case 1:
case 4:
case 19:
case 20:
s1 = 127.5f*myfsin(M_PI*v)+127.5f;
s2 = 127.5f*myfsin(M_PI*v+2.0f/3.0f*M_PI)+127.5f;
s4 = 127.5f*myfsin(M_PI*v+4.0f/3.0f*M_PI)+127.5f;
break;
// type 2 couleurs pures
case 2:
case 16:
case 18:
// type 2 couleurs white
case 3:
case 12:
case 17:
case 14:
s1 = 127.5f*myfsin(M_PI*v)+127.5f;
c1 = 127.5f*myfcos(M_PI*v)+127.5f;
break;
case 13:
case 15:
c[0] = 0.5f+0.5f*myfsin(M_PI*v+4.0f/3.0f*M_PI);
break;
// 5
default :
break;
}
switch(plasma_type)
{
// RGB Type
case 1:
// RGB Type
raw[raw_offset++] = s1;
raw[raw_offset++] = s2;
raw[raw_offset++] = s4;
break;
case 19:
// RGB Type 2
raw[raw_offset++] = s2;
raw[raw_offset++] = s1;
raw[raw_offset++] = s4;
break;
case 20:
// RGB Type 3
raw[raw_offset++] = s4;
raw[raw_offset++] = s2;
raw[raw_offset++] = s1;
break;
// Yellow
case 4:
// White Yellow Type
raw[raw_offset++] = 255; //(0.5f+0.5f*myfsin(M_PI*v))*255;
raw[raw_offset++] = 255; //(0.5f+0.5f*myfsin(M_PI*v+2.0f/3.0f*M_PI))*255;
raw[raw_offset++] = s4;
break;
// 2 Couleurs pures
case 2:
// RED GREEN TYPE
raw[raw_offset++] = s1;
raw[raw_offset++] = c1;
raw[raw_offset++] = 0;
break;
case 16:
// VERT / BLEU
raw[raw_offset++] = 0;
raw[raw_offset++] = c1;
raw[raw_offset++] = s1;
break;
case 18:
// ROUGE / BLEU
raw[raw_offset++] = s1;
raw[raw_offset++] = 0;
raw[raw_offset++] = c1;
break;
// Mix White
case 3:
// YELLOW/MAGENTA/PINK/WHITE TYPE
raw[raw_offset++] = 255;
raw[raw_offset++] = c1;
raw[raw_offset++] = s1;
break;
case 12:
// CYAN/YELLOW/WHITE TYPE
raw[raw_offset++] = s1;
raw[raw_offset++] = 255;
raw[raw_offset++] = c1;
break;
case 17:
// MAGENTA/CYAN/WHITE
raw[raw_offset++] = s1;
raw[raw_offset++] = c1;
raw[raw_offset++] = 255;
break;
//
case 14:
// MAGENTA TYPE
raw[raw_offset++] = 255;
raw[raw_offset++] = s1;
raw[raw_offset++] = 255;
break;
case 5:
// BLACK AND WHITE
x = 127.5f*myfsin(M_PI*4.0f*v)+127.5f;
raw[raw_offset++] = x;
raw[raw_offset++] = x;
raw[raw_offset++] = x;
break;
case 13:
// CYAN TYPE
raw[raw_offset++] = (c[0]*c[0])*intensity;
raw[raw_offset++] = 255;
raw[raw_offset++] = 255;
break;
case 15:
// MAGENTA TYPE DEEP
raw[raw_offset++] = 255;
raw[raw_offset++] = (c[0]*c[0])*intensity;
raw[raw_offset++] = 255;
break;
default :
raw[raw_offset++] = 0x80;
raw[raw_offset++] = 0x80;
raw[raw_offset++] = 0x80;
break;
}
}
}
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return 1;
}
uint8_t generateUniformColor(uint8_t *raw,uint8_t *color)
{
uint32_t p=0;
while (p<NB_PIXELS)
{
*raw++=color[0];
*raw++=color[1];
*raw++=color[2];
p++;
}
return 0;
}
uint8_t generateBlack(uint8_t *raw)
{
memset(raw,0,RAW_SIZE);
return 0;
}
uint8_t generateWhite(uint8_t *raw, uint8_t intensity)
{
memset(raw,intensity,RAW_SIZE);
return 0;
}
uint8_t generateYellow(uint8_t *raw, uint8_t intensity)
{
uint8_t color[3];
color[0] = color[1] = intensity;
color[2] = intensity>>2;
generateUniformColor(raw,color);
return 0;
}
// GAME OF LIFE CODE START
// well, ok, ram footprint could be / 8
// but that's ok, plenty of ram
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uint8_t imageff[2][NB_LINES][NB_COLUMNS];
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void randfill(void)
{
int line, column;
for (line=0;line<NB_LINES;line++)
{
for (column=0;column<NB_COLUMNS;column++)
{
imageff[0][line][column] = (rand()>=RAND_MAX/2?1:0);
}
}
}
uint8_t get8brothers(uint8_t flip,int line,int column)
{
int cl,cr,lu,ld;
// manage rollover on borders
if (line==0)
lu = NB_LINES-1;
else
lu = line-1;
if (line == NB_LINES-1)
ld = 0;
else
ld = line +1;
if (column==0)
cl = NB_COLUMNS-1;
else
cl = column-1;
if (column==NB_COLUMNS-1)
cr = 0;
else
cr = column+1;
// addup brothers
return
imageff[flip][lu][cl] +
imageff[flip][lu][column] +
imageff[flip][lu][cr] +
imageff[flip][line][cl] +
imageff[flip][line][cr] +
imageff[flip][ld][cl] +
imageff[flip][ld][column] +
imageff[flip][ld][cr];
}
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// goal : detect situations of cycles
// not a good way to compare, best method is to compute a hash and compare the hashs on more that 2 or 3 cycles.
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// if match, then start a few seconds countdown before restart
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uint8_t compareGOLImages(void)
{
uint8_t *p0,*p1;
uint32_t p;
p0 = &imageff[0][0][0];
p1 = &imageff[1][0][0];
p = 0;
while (p<NB_PIXELS)
{
if ((*p0)!=(*p1))
return 0;
p0++;
p1++;
p++;
}
return 1;
}
uint8_t generateGameOfLife(uint8_t *raw, float time, uint8_t intensity)
{
static uint8_t initialized = 0;
static uint8_t flip, flop;
int line, column;
static float lastTime = 0;
uint8_t brothers;
uint32_t raw_offset;
static float prepareRestart;
static float autoRestart;
if (((!initialized)||(time-lastTime>2))||((prepareRestart!=0)&&(time-prepareRestart>10))||(time-autoRestart>60))
{
flip = 0;
flop = 1;
srand(time*20);
randfill();
initialized = 1;
prepareRestart = 0;
autoRestart = time;
lastTime = time;
}
else
{
if (time-lastTime<0.3f)
{
return 1;
}
flip = 1-flip;
flop = 1-flop;
}
// calcule de flip vers flop
for (line=0;line<NB_LINES;line++)
{
for (column=0;column<NB_COLUMNS;column++)
{
brothers = get8brothers(flip,line,column);
if (imageff[flip][line][column]==0)
{
if (brothers==3)
imageff[flop][line][column] = 1;
else
imageff[flop][line][column] = 0;
}
else if (imageff[flip][line][column]==1)
{
if ((brothers==2)||(brothers==3))
imageff[flop][line][column] = 1;
else
imageff[flop][line][column] = 0;
}
else
{
crash(0);
}
raw_offset = getRawOffset(column, line);
brothers = intensity*imageff[flop][line][column];
raw[raw_offset++] = brothers;
raw[raw_offset++] = brothers;
raw[raw_offset++] = brothers;
}
}
/*
if (compareGOLImages())
{
prepareRestart = time;
}
*/
lastTime = time;
return 1;
}
// GAME OF LIFE CODE END
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__attribute__((section("itcmram")))
void setIntensity(uint8_t *raw_out, uint8_t *raw_in, uint8_t intensity)
{
int i = RAW_SIZE;
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intensity = (intensity*intensity)>>8;
while(i)
{
*raw_out = ((*raw_in)*(intensity+1))>>8;
raw_out++;
raw_in++;
i--;
}
}
// POWER LIMITER CODE START
#define MAX_LEDTUBE_LINE_POWER (NB_COLUMNS*3*POWER_LIMIT)
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__attribute__((section("itcmram")))
int powerLimiter(uint8_t *raw_out, uint8_t *raw_in, uint8_t intensity)
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uint8_t *p_in;
uint16_t linePower;
uint16_t maxLinePower;
uint16_t ipowerReduction;
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p_in = raw_in;
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intensity = (intensity*intensity)>>8;
for (line=0;line<NB_LINES;line++)
{
linePower = 0;
for (column=0;column<NB_COLUMNS;column++)
{
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linePower+= p_in[0] + p_in[1] + p_in[2];
p_in+=3;
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linePower = (linePower*(intensity+1))>> 8;
if (linePower>maxLinePower)
maxLinePower = linePower;
}
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if (maxLinePower>MAX_LEDTUBE_LINE_POWER) // power will be limited
{
ipowerReduction = (uint16_t) (256.0f*MAX_LEDTUBE_LINE_POWER/maxLinePower);
i=RAW_SIZE;
do
{
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*raw_out = ((*raw_in)*(ipowerReduction)) >> 8;
raw_in++;
raw_out++;
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return 1;
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return 0;
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void ledstripXmax(uint8_t *raw);
uint8_t imageGenerator(uint32_t currentMode, uint8_t *raw, float time, uint8_t intensity)
{
uint8_t dynamic;
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int raw_image_number;
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case 0: dynamic = 0; break;
case 1:
case 2:
case 3:
case 4:
case 5: dynamic = generatePlasma(raw,time,(uint8_t) currentMode, intensity); break;
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case 6: dynamic = generateLogoElectrolab(raw, intensity); break;
case 7: dynamic = generateBlack(raw); break;
case 8: dynamic = generateWhite(raw, intensity); break;
case 9: dynamic = generateYellow(raw, intensity); break;
case 10: dynamic = generateLogoElectrolab(raw, intensity); break;
case 11: dynamic = generateGameOfLife(raw, time, intensity); break;
case 12:
case 13:
case 14:
case 15:
case 16:
case 17:
case 18:
case 19:
case 20:
dynamic = generatePlasma(raw,time,(uint8_t) currentMode, intensity); break;
// case 21: dynamic = generateElabLogos(raw);break; // Pas beau
laurentc
committed
case 21:
ledstripXmax(raw);
dynamic = 1; break;
default: break;
}
if (currentMode>=IMAGE_MODES_START) // 22..22+31=53
{
raw_image_number = currentMode-IMAGE_MODES_START;
readImageFromFlash(raw,raw_image_number);
dynamic = 0;
laurentc
committed