edit test
This commit is contained in:
Kizarm
parent
831931a37d
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ab5a62a3f1
5 changed files with 60 additions and 19 deletions
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@ -1,9 +1,10 @@
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CC = gcc
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CX = g++
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LD = ld
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CFLAGS = -c -Os -fPIC
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VPATH = . ..
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CFLAGS = -c -Os -fPIC -I../ -I../common
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OBJS = main.o
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OBJS = main.o ws2812b.o
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SLIB = graph.so
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all: $(SLIB)
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@ -5,6 +5,7 @@ import cffi
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import numpy as np
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import matplotlib.pyplot as plt
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c_header = '''
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void test (void);
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void print_table (void);
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double ComputeRed (double);
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double ComputeGreen (double);
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@ -25,16 +26,17 @@ def plot_colors(C):
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plt.grid()
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plt.ylabel('Intenzity')
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plt.xlabel('N')
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#plt.savefig('color.png')
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plt.show()
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plt.savefig('color.png')
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#plt.show()
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############################ MAIN ##############################################################
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def main_func():
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ffi = cffi.FFI()
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ffi.cdef(c_header)
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C = ffi.dlopen("./graph.so")
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C.test()
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plot_colors(C)
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#C.print_table()
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C.print_table()
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ffi.dlclose(C)
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return True
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if __name__ == '__main__':
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@ -1,20 +1,22 @@
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#include <stdint.h>
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#include <cmath>
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#include <cstdio>
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#include "ws2812b.h"
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extern "C" {
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extern void test (void);
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extern void print_table (void);
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extern double ComputeRed (double);
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extern double ComputeGreen (double);
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extern double ComputeBlue (double);
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};
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union Color {
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union MColor {
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struct _c {
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uint8_t g, r, b, a;
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explicit _c (const uint8_t _r, const uint8_t _g, const uint8_t _b) noexcept :
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g(_g), r(_r), b(_b), a(0u) {}
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} c;
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uint32_t number;
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explicit Color (const uint8_t r, const uint8_t g, const uint8_t b) : c(r, g, b) {}
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explicit MColor (const uint8_t r, const uint8_t g, const uint8_t b) : c(r, g, b) {}
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};
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#if 0
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static Color getColor (const int index) {
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@ -38,25 +40,25 @@ static uint8_t Gauss (const double x, const double x0) {
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double r = 256.0 * exp (-sigma * arg * arg);
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return uint8_t (r);
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}
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static Color getColor (const int index) {
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static MColor getColor (const int index) {
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uint8_t r=0,g=0,b=0; // proměnné barvy
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r = Gauss(index, 85.333);
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g = Gauss(index, 170.67);
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b = Gauss(index, 0.01) + Gauss(index, 256.0);
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Color color(r, g, b);
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MColor color(r, g, b);
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return color;
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}
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#endif
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double ComputeRed (double x) {
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Color c = getColor(x);
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MColor c = getColor(x);
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return double (c.c.r);
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}
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double ComputeGreen (double x) {
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Color c = getColor(x);
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MColor c = getColor(x);
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return double (c.c.g);
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}
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double ComputeBlue (double x) {
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Color c = getColor(x);
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MColor c = getColor(x);
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return double (c.c.b);
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}
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@ -66,9 +68,42 @@ void print_table () {
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fprintf(out, "const unsigned table [] = {");
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for (unsigned n=0u; n<256u; n++) {
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if ((n%8) == 0u) fprintf(out, "\n");
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const Color c = getColor(n);
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const MColor c = getColor(n);
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fprintf(out, " 0x%06X,", c.number);
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}
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fprintf(out, "\n};\n");
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fclose(out);
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}
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static constexpr unsigned PADDING = 10 * sizeof (Color);
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static constexpr unsigned LEDS_LEN = NUMLEDS * sizeof (Color);
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static constexpr unsigned FULL_LEN = PADDING + LEDS_LEN;
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static uint8_t buffer [FULL_LEN];
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void test () {
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printf ("led color size = %zd\n", sizeof (Color));
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for (unsigned n=0; n<FULL_LEN; n++) buffer[n] = 0;
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Color * const cptr = reinterpret_cast<Color*>(buffer + PADDING);
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for (unsigned n=0; n<NUMLEDS; n++) {
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Color & c = cptr [n];
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const OneColor cb (0xff), cg (0x55), cr (0x00);
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c.b = cb; c.g = cg; c.r = cr;
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}
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const unsigned mlen = 1024;
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char text [mlen];
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for (unsigned n=0; n<NUMLEDS; n++) {
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Color & c = cptr [n];
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unsigned k = 0u;
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k += c.g.to_string(text + k);
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text [k++] = '|';
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k += c.r.to_string(text + k);
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text [k++] = '|';
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k += c.b.to_string(text + k);
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printf("led %d => %s\n", n, text);
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}
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printf("buffer dump :");
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for (unsigned n=0; n<FULL_LEN; n++) {
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if ((n%10) == 0) printf("\n");
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printf("<%02x>", buffer[n]);
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}
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printf("\n");
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}
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@ -2,13 +2,13 @@ const unsigned table [] = {
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0xFF0700, 0xFF0700, 0xFF0800, 0xFE0900, 0xFE0A00, 0xFC0A00, 0xFB0B00, 0xF90C00,
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0xF80D00, 0xF60E00, 0xF31000, 0xF11100, 0xEE1200, 0xEB1300, 0xE81500, 0xE51600,
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0xE11800, 0xDE1A00, 0xDA1B00, 0xD61D00, 0xD21F00, 0xCE2100, 0xCA2400, 0xC52600,
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0xC12800, 0xBC2B00, 0xB82D00, 0xB33000, 0xAE3300, 0xA93600, 0xA43900, 0xA03C00,
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0x9B3F00, 0x964300, 0x914600, 0x8C4A00, 0x874E00, 0x835100, 0x7E5500, 0x795900,
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0xC12800, 0xBC2B00, 0xB82D00, 0xB33000, 0xAE3300, 0xA93600, 0xA53900, 0xA03C00,
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0x9B3F00, 0x964300, 0x914600, 0x8C4A00, 0x884E00, 0x835100, 0x7E5500, 0x795900,
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0x755D00, 0x706200, 0x6C6600, 0x676A00, 0x636F00, 0x5F7300, 0x5B7800, 0x577C00,
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0x538100, 0x4F8600, 0x4B8B00, 0x478F00, 0x449400, 0x409900, 0x3D9E00, 0x3AA300,
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0x37A800, 0x34AC00, 0x31B100, 0x2EB600, 0x2CBB00, 0x29BF00, 0x27C400, 0x24C800,
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0x22CD00, 0x20D101, 0x1ED501, 0x1CD901, 0x1ADD01, 0x19E001, 0x17E401, 0x15E702,
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0x14EA02, 0x12ED02, 0x11F002, 0x10F302, 0x0FF503, 0x0EF703, 0x0DF903, 0x0CFB04,
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0x22CC00, 0x20D101, 0x1ED501, 0x1CD901, 0x1ADD01, 0x19E001, 0x17E401, 0x15E702,
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0x14EA02, 0x12ED02, 0x11F002, 0x10F202, 0x0FF503, 0x0EF703, 0x0DF903, 0x0CFB04,
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0x0BFC04, 0x0AFD05, 0x09FE05, 0x08FF06, 0x08FF06, 0x07FF07, 0x06FF07, 0x06FF08,
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0x05FF09, 0x05FE09, 0x04FD0A, 0x04FC0B, 0x04FA0C, 0x03F80D, 0x03F60E, 0x03F40F,
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0x02F210, 0x02EF12, 0x02EC13, 0x02E914, 0x01E616, 0x01E317, 0x01DF19, 0x01DB1B,
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@ -17,7 +17,7 @@ const unsigned table [] = {
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0x008E49, 0x00894C, 0x008450, 0x008054, 0x007B58, 0x00765C, 0x007260, 0x006D64,
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0x006969, 0x00646D, 0x006072, 0x005C76, 0x00587B, 0x005480, 0x005084, 0x004C89,
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0x00498E, 0x004593, 0x004298, 0x003E9C, 0x003BA1, 0x0038A6, 0x0035AB, 0x0032B0,
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0x002FB4, 0x002CB9, 0x002ABE, 0x0027C2, 0x0025C7, 0x0023CB, 0x0121CF, 0x011FD3,
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0x002FB4, 0x002DB9, 0x002ABE, 0x0027C2, 0x0025C7, 0x0023CB, 0x0121CF, 0x011FD3,
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0x011DD7, 0x011BDB, 0x0119DF, 0x0117E3, 0x0116E6, 0x0214E9, 0x0213EC, 0x0212EF,
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0x0210F2, 0x030FF4, 0x030EF6, 0x030DF8, 0x040CFA, 0x040BFC, 0x040AFD, 0x0509FE,
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0x0509FF, 0x0608FF, 0x0607FF, 0x0707FF, 0x0806FF, 0x0806FF, 0x0905FE, 0x0A05FD,
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@ -38,8 +38,11 @@ static constexpr unsigned FIFOLEN = 8u; // min. depth je 8, jinak mocnina 2 >=
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* pořád, v 1. části dělá "reset", tedy časování rámce (vysílá nuly).
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* V 2. části si vybere z fronty ring data a uloží je do buferu ve správném
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* tvaru. Využívá se toho, že přerušení přijde až na konci a naplnění daty
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* netrvá dlouho, takže se přepisuje jen část, která se nevysílá.
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* netrvá dlouho, takže se přepisuje jen část, která se právě nevysílá.
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* Fronta byla použita (celkem zbytečně) protože zatím netuším jaká data posílat.
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* NOTE
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* Protože WS2812B je 5V záležitost a procesor je napájen jen 3.3V, funguje to
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* na hraně a je dobré zapojit mezi MOSI a +5V rezistor 1k. Je to pak stabilnější.
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* */
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class ws2812b : public OneWay<uint8_t> {
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FIFO<uint32_t,FIFOLEN> & ring;
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