diff options
Diffstat (limited to 'languages/cpp/app_templates/noatunvisual/plugin_impl.cpp')
| -rw-r--r-- | languages/cpp/app_templates/noatunvisual/plugin_impl.cpp | 276 |
1 files changed, 276 insertions, 0 deletions
diff --git a/languages/cpp/app_templates/noatunvisual/plugin_impl.cpp b/languages/cpp/app_templates/noatunvisual/plugin_impl.cpp new file mode 100644 index 00000000..a25f1fd2 --- /dev/null +++ b/languages/cpp/app_templates/noatunvisual/plugin_impl.cpp @@ -0,0 +1,276 @@ + +#include "plugin_%{APPNAMELC}_impl.h" + +#include <string.h> +#include <stdlib.h> + +extern "C" +{ + #include <SDL.h> + #include <fcntl.h> + #include <unistd.h> +} + +#if 0 +#define TEST() cout << "At line " << __LINE__ << endl +#else +#define TEST() if(0) +#endif + +#define output ((unsigned char*)data) +template <class Type> +inline void Bitmap<Type>::addPixel(int x, int y, int br1, int br2) +{ + if (x < 0 || x >= width || y < 0 || y >= height) return; + + register unsigned char *p = output+x*2+y*width*2; + if (p[0] < 255-br1) p[0] += br1; else p[0] = 255; + if (p[1] < 255-br2) p[1] += br2; else p[1] = 255; +} + +template <class Type> +void Bitmap<Type>::addVertLine(int x, int y1, int y2, int br1, int br2) +{ + if(y1 < y2) + { + for(int y = y1; y <= y2; y++) + addPixel(x,y, br1, br2); + } + else if(y2 < y1) + { + for(int y = y2; y <= y1; y++) + addPixel(x, y, br1, br2); + } + else + { + addPixel(x, y1, br1, br2); + } +} + +template <class Type> +void Bitmap<Type>::fadeStar() +{ + register unsigned long *ptr = (unsigned long*)output; + int i = width*height*2/4; + do + { + if (*ptr) + *(ptr++) -= ((*ptr & 0xf0f0f0f0ul) >> 4) + ((*ptr & 0xe0e0e0e0ul) >> 5); + else + ptr++; + } while(--i > 0); +} + +%{APPNAME}View::%{APPNAME}View(int in) : mFd(in), outputBmp(0), fullscreen(false) +{ + surface = 0; + width = 320; + height = width*6/8; + outputBmp.size(width, height); + TEST(); + + TEST(); + fcntl(mFd, F_SETFL, fcntl(mFd, F_GETFL) & ~O_NONBLOCK); + TEST(); + + + float *data = new float[width]; + TEST(); + + startVideo(); + setupPalette(); + TEST(); + + while(true) + { + checkInput(); + + if(!surface) exit(0); + + int bytestoread = width * sizeof(float); + int pos = 0; + while(pos < bytestoread) + { + char *d = (char *)data; + int r = read(mFd, d + pos, bytestoread - pos); + if(r > 0) pos += r; + else if (r==0) exit(0); + } + + outputBmp.fadeStar(); + outputBmp.fadeStar(); + + float *d = data; + float *end = data + width; + float heightHalf = height / 4.0; + int y = height / 2; + int x=0; + int oldy=(int)(*d * heightHalf); + while(d <= end) + { + int amp = (int)(*d * heightHalf); + amp+=y; + + outputBmp.addVertLine(x, oldy, amp, 255, 255); + oldy=amp; + + d++; + x++; + } + repaint(); + } +} + +static SDL_Surface *CreateScreen(Uint16 w, Uint16 h, Uint8 bpp, Uint32 flags) +{ + SDL_Surface *screen; + + // Set the video mode + screen = SDL_SetVideoMode(w, h, bpp, flags); + return screen; +} + +void %{APPNAME}View::startVideo() +{ + if(surface) + { + SDL_FreeSurface(surface); + surface = 0; + } + + Uint32 videoflags; + + /* Initialize SDL */ + if ( SDL_Init(SDL_INIT_VIDEO) < 0 ) + exit(0); + + SDL_WM_SetCaption("%{APPNAME}","%{APPNAMELC}"); + + /* See if we try to get a hardware colormap */ + videoflags = SDL_SWSURFACE | (fullscreen?SDL_FULLSCREEN:0); + + surface = CreateScreen(width, height, 8, videoflags); + if (!surface) + exit(0); + + SDL_ShowCursor(0); + + if(!surface) + SDL_Quit(); + + SDL_WM_SetCaption("%{APPNAME}", 0); + SDL_ShowCursor(0); + +} + +void %{APPNAME}View::setupPalette(double) +{ +#define BOUND(x) ((x) > 255 ? 255 : (x)) +#define PEAKIFY(x) int(BOUND((x) - (x)*(255-(x))/255/2)) +#define MAX(x,y) ((x) > (y) ? (x) : (y)) + + int redMax=136; + int greenMax=136; + int blueMax=255; + + SDL_Color sdlPalette[256]; + + for(int i=0;i<256;i++) + { + // i + // 255 136 + sdlPalette[i].r = i*redMax/255; + sdlPalette[i].g = i*greenMax/255; + sdlPalette[i].b = i*blueMax/255; + } + + SDL_SetColors(surface, sdlPalette, 0, 256); + +#undef BOUND +#undef PEAKIFY +#undef MAX +} + +void %{APPNAME}View::checkInput() +{ + SDL_Event myEvent; + + while(SDL_PollEvent(&myEvent)) + { + switch(myEvent.type) + { + case SDL_KEYDOWN: + switch(myEvent.key.keysym.sym) + { + case SDLK_SPACE: +// fullscreen ^= true; +// startVideo(); + break; + default: + break; + } + break; + + case SDL_QUIT: + exit(0); + break; + } + } +} + +#define output2 ((unsigned char*)outputBmp.data) + +void %{APPNAME}View::repaint() +{ + SDL_LockSurface(surface); + TEST(); + + register unsigned long *ptr2 = (unsigned long*)output2; + unsigned long *ptr1 = (unsigned long*)( surface->pixels ); + int i = width*height/4; + TEST(); + + do { + // Asger Alstrup Nielsen's (alstrup@diku.dk) + // optimized 32 bit screen loop + register unsigned int const r1 = *(ptr2++); + register unsigned int const r2 = *(ptr2++); + + //if (r1 || r2) { +#ifdef LITTLEENDIAN + register unsigned int const v = + ((r1 & 0x000000f0ul) >> 4) + | ((r1 & 0x0000f000ul) >> 8) + | ((r1 & 0x00f00000ul) >> 12) + | ((r1 & 0xf0000000ul) >> 16); + *(ptr1++) = v | + ( ((r2 & 0x000000f0ul) << 12) + | ((r2 & 0x0000f000ul) << 8) + | ((r2 & 0x00f00000ul) << 4) + | ((r2 & 0xf0000000ul))); +#else + register unsigned int const v = + ((r2 & 0x000000f0ul) >> 4) + | ((r2 & 0x0000f000ul) >> 8) + | ((r2 & 0x00f00000ul) >> 12) + | ((r2 & 0xf0000000ul) >> 16); + *(ptr1++) = v | + ( ((r1 & 0x000000f0ul) << 12) + | ((r1 & 0x0000f000ul) << 8) + | ((r1 & 0x00f00000ul) << 4) + | ((r1 & 0xf0000000ul))); +#endif + //} else ptr1++; + } while (--i); + TEST(); + + SDL_UnlockSurface(surface); + SDL_UpdateRect(surface, 0, 0, 0, 0); + TEST(); + +} + +%{APPNAME}View::~%{APPNAME}View() +{ + ::close(mFd); +} |