Merge pull request 'feature/init_c_version' (#1) from feature/init_c_version into develop

Reviewed-on: http://git.dslak.it:3000/dslak/Sonquencer/pulls/1

C/compile.sh

@@ -0,0 +1 @@
+g++ -o sonquencer -I/usr/include/SDL2  main.cpp -lSDL2 -lSDL2_image -lSDL2_ttf -lSDL2_mixer

C/loaders.cpp

@@ -0,0 +1,30 @@
+
+int loadBank(int bank) {
+
+  memset(_sample, 0, sizeof(Mix_Chunk*) * NUM_WAVEFORMS);
+
+  int result = Mix_OpenAudio(44100, AUDIO_S16SYS, 2, 512);
+  if( result < 0 ) {
+    fprintf(stderr, "Unable to open audio: %s\n", SDL_GetError());
+    exit(-1);
+  }
+
+  result = Mix_AllocateChannels(4);
+  if( result < 0 ) {
+    fprintf(stderr, "Unable to allocate mixing channels: %s\n", SDL_GetError());
+    exit(-1);
+  }
+
+  char waveFileName[17];
+
+  for( int i = 0; i < NUM_WAVEFORMS; i++ ) {
+    sprintf(waveFileName, "banks/BANK%d/%d.wav", bank, i+1);
+
+    _sample[i] = Mix_LoadWAV(waveFileName);
+    if( _sample[i] == NULL ) {
+      fprintf(stderr, "Unable to load wave file: %s\n", waveFileName);
+    }
+  }
+
+  return true;
+}

C/main.cpp

@@ -0,0 +1,104 @@
+#include <stdio.h>
+#include "SDL.h"
+#include "SDL_mixer.h"
+#include "SDL_image.h"
+#include <unistd.h>
+#include <syslog.h>
+#include <string.h>
+#include <math.h>
+
+#define NUM_WAVEFORMS 6
+
+Mix_Chunk* _sample[NUM_WAVEFORMS];
+
+#include "players.cpp"
+#include "loaders.cpp"
+
+int main(int argc, char** argv) {
+
+  bool done = false;
+  bool play = true;
+  int timer = 0;
+  int step = 500;
+
+  SDL_Window* window;
+  SDL_Renderer* renderer;
+
+  SDL_Init(SDL_INIT_VIDEO | SDL_INIT_AUDIO );
+  atexit(SDL_Quit);
+
+  window = SDL_CreateWindow("Sonquencer", SDL_WINDOWPOS_UNDEFINED, SDL_WINDOWPOS_UNDEFINED, 400, 300, 0);
+  renderer = SDL_CreateRenderer(window, -1, 0);
+
+  SDL_SetRenderDrawColor(renderer, 100, 100, 100, 255);
+  SDL_Delay(1000);
+
+  if(loadBank(1) == false) {return -1;}
+
+  SDL_Event event;
+
+  while (!done) {
+    bool gotEvent = SDL_PollEvent(&event);
+
+    SDL_RenderClear(renderer);
+    SDL_RenderPresent(renderer);
+
+    while (!done && gotEvent) {
+      switch (event.type) {
+        case SDL_KEYDOWN:
+
+          switch (event.key.keysym.sym) {
+            case SDLK_ESCAPE:
+                Mix_CloseAudio();
+                SDL_Quit();
+                return 0;
+              break;
+            case SDLK_1:
+              playSample(1);
+              break;
+            case SDLK_2:
+              playSample(2);
+              break;
+            case SDLK_3:
+              playSample(3);
+              break;
+            case SDLK_4:
+              playSample(4);
+              break;
+            case SDLK_5:
+              playSample(5);
+              break;
+            case SDLK_6:
+              playSample(6);
+              break;
+
+            default:
+              break;
+          }
+          break;
+
+        case SDL_QUIT:
+          done = true;
+          break;
+
+        default:
+          break;
+      }
+
+      if( !done ) { gotEvent = SDL_PollEvent(&event); }
+
+    }
+
+    playStep(play, &timer, &step);
+  }
+
+
+  for( int i = 0; i < NUM_WAVEFORMS; i++ ) {
+    Mix_FreeChunk(_sample[i]);
+  }
+
+  Mix_CloseAudio();
+  SDL_Quit();
+  return 0;
+}
+

C/players.cpp

@@ -0,0 +1,15 @@
+
+void playStep(bool play, int *timer, int *step) {
+  *timer = *timer >= *step ? 0 : *timer+1;
+  usleep(1000);
+
+  if(*timer == 0) {
+    printf("%d\n", *timer);
+
+    Mix_PlayChannel(-1, _sample[1], 0);
+  }
+}
+
+void playSample(int sample) {
+  Mix_PlayChannel(-1, _sample[sample-1], 0);
+}