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https://github.com/brmlab/ledbar.git
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Move host software to host/ subdirectory.
This commit is contained in:
Petr Baudis
parent
141028bc90
commit
39428b3e29
3 changed files with 0 additions and 0 deletions
10
host/Makefile
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10
host/Makefile
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CFLAGS=$(shell sdl-config --cflags) -Wall
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LDFLAGS=$(shell sdl-config --libs)
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all: ledbar
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ledbar: ledbar.c
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gcc ledbar.c -o ledbar $(CFLAGS) $(LDFLAGS)
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clean:
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rm -f ledbar
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5
host/README
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5
host/README
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* http://brmlab.cz/project/ledbar
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* control with Q, W
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* quit with escape or close the window
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211
host/ledbar.c
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211
host/ledbar.c
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/*
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* Copyright (c) 2010 Pavol Rusnak <stick@gk2.sk>
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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* THE SOFTWARE.
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*/
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#include <stdio.h>
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#include <math.h>
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#include <time.h>
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#include <SDL.h>
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#define min(x,y) ( (x)<(y) ? (x) : (y) )
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#define max(x,y) ( (x)>(y) ? (x) : (y) )
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#define DEBUG 1
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#define RESX 800
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#define RESY 600
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#define BPP 32
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#define BOXES 23
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SDL_Rect rects[BOXES];
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void (*program)(int i, int t, double *r, double *g, double *b);
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// rainbow
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void programQ(int i, int t, double *r, double *g, double *b)
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{
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double index = 1.0*i/BOXES;
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double time = 0.01*t;
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*r = (sin(M_PI*2*index+time)+1.0)/2;
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*g = (sin(M_PI*2*index+time+M_PI*2/3)+1.0)/2;
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*b = (sin(M_PI*2*index+time+M_PI*4/3)+1.0)/2;
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}
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// rainbow with different speeds
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void programW(int i, int t, double *r, double *g, double *b)
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{
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double index = 1.0*i/BOXES;
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double time = 0.01*t;
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*r = (sin(M_PI*2*index+time)+1.0)/2;
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*g = (sin(M_PI*2*index+time/1.618)+1.0)/2;
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*b = (sin(M_PI*2*index+time*1.618)+1.0)/2;
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}
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// knight rider
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void programE(int i, int t, double *r, double *g, double *b)
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{
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static float pos = BOXES/2;
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static float dir = 0.01;
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*r = max(1 - fabsl((pos-i)/BOXES)*4, 0);
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*g = 0;
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*b = 0;
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pos += dir;
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if (pos < 0 || pos > BOXES) dir = -dir;
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}
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// binary
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void programR(int i, int t, double *r, double *g, double *b)
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{
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t /= 10;
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*r = 0;
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*g = t & (1<<(BOXES-i-1)) ? 1 : 0;
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*b = 0;
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}
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// morse code
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void programT(int i, int t, double *r, double *g, double *b)
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{
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// . -> 'x' - -> 'xxx' interelement -> ' '
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// interletter -> ' ' interword -> ' '
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// static const char *str = "brmlab rulez ";
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static const char *str = "xxx x x x x xxx x xxx xxx x xxx x x x xxx xxx x x x x xxx x x x xxx x xxx x x x xxx xxx x x ";
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static int len;
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len = strlen(str);
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t /= 50;
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*r = 0;
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*g = str[(i+t)%len]=='x' ? 1 : 0;
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*b = 0;
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}
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// MiniPOV brmlab
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void programY(int i, int t, double *r, double *g, double *b)
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{
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static const char *bm[] = {
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"x x x ",
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"xx x x x x xx xx ",
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"x x x x x x x x x x x x",
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"xx x x x x x xx xx "
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};
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t = t % 4;
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*r = 0;
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*g = t<4 && i<23 && bm[t][i]=='x' ? 1 : 0;
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*b = 0;
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}
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// clock - binary
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void programU(int i, int t, double *r, double *g, double *b)
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{
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int h, m, s;
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t = time(NULL) % 86400;
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h = t/3600;
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m = t/60%60;
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s = t%60;
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*r = i==0 || i ==BOXES-1 || ((h&16) && i==BOXES-21) || ((h& 8) && i==BOXES-20) || ((h&4) && i==BOXES-19) || ((h&2) && i==BOXES-18) || ((h&1) && i==BOXES-17) ? 1 : 0;
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*g = i==0 || i ==BOXES-1 || ((m&32) && i==BOXES-15) || ((m&16) && i==BOXES-14) || ((m&8) && i==BOXES-13) || ((m&4) && i==BOXES-12) || ((m&2) && i==BOXES-11) || ((m&1) && i==BOXES-10) ? 1 : 0;
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*b = i==0 || i ==BOXES-1 || ((s&32) && i==BOXES- 8) || ((s&16) && i==BOXES- 7) || ((s&8) && i==BOXES- 6) || ((s&4) && i==BOXES- 5) || ((s&2) && i==BOXES- 4) || ((s&1) && i==BOXES- 3) ? 1 : 0;
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}
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// clock - progressbar
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void programI(int i, int t, double *r, double *g, double *b)
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{
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double h, m, s;
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t = time(NULL) % 86400;
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h = 7.0*(t/3600)/24 - i;
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m = 8.0*(t/60%60)/60 - (i-7);
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s = 8.0*(t%60)/60 - (i-15);
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if (h<0) h = 0; else if (h>1) h = 1;
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if (m<0) m = 0; else if (m>1) m = 1;
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if (s<0) s = 0; else if (s>1) s = 1;
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*r = h;
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*g = i>7 ? m : 0;
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*b = i>15 ? s : 0;
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}
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void drawScreen(SDL_Surface* screen, int t)
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{
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int i;
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double r, g, b;
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if(SDL_MUSTLOCK(screen) && SDL_LockSurface(screen) < 0) return;
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for (i=0; i<BOXES; ++i) {
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program(i, t, &r, &g, &b);
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#ifdef DEBUG
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printf("%2d %d %f %f %f\n", i, t, r, g, b);
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#endif
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SDL_FillRect(screen, &rects[i], SDL_MapRGB(screen->format, r*255, g*255, b*255));
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}
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if (SDL_MUSTLOCK(screen)) SDL_UnlockSurface(screen);
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SDL_Flip(screen);
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}
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int main(int argc, char* argv[])
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{
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SDL_Surface *screen;
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SDL_Event event;
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int quit = 0;
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int t = 0;
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int size;
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if (SDL_Init(SDL_INIT_VIDEO) < 0) return 1;
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if (!(screen = SDL_SetVideoMode(RESX, RESY, BPP, SDL_HWSURFACE))) {
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SDL_Quit();
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return 1;
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}
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size = (RESX-(BOXES+1)*4)/BOXES;
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for (t=0; t<BOXES; ++t) {
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rects[t].h = size;
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rects[t].w = size;
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rects[t].x = t*(size+4) + (RESX-(size+4)*BOXES+4)/2;
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rects[t].y = (RESY-size)/2;
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}
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program = programQ;
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while (!quit) {
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drawScreen(screen,t++);
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while(SDL_PollEvent(&event)) {
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switch (event.type) {
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case SDL_QUIT:
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quit = 1; break;
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case SDL_KEYDOWN:
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switch(event.key.keysym.sym) {
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case SDLK_q: program = programQ; break;
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case SDLK_w: program = programW; break;
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case SDLK_e: program = programE; break;
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case SDLK_r: program = programR; break;
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case SDLK_t: program = programT; break;
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case SDLK_y: program = programY; break;
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case SDLK_u: program = programU; break;
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case SDLK_i: program = programI; break;
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case SDLK_ESCAPE: quit = 1; break;
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default: break;
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}
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break;
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}
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}
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}
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SDL_Quit();
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return 0;
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}
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