void SdlDisplay::sdlLauncher(bool multi)
{
sdlInit(multi);
createApple();
while (start)
{
sdlEvent(multi);
if ((SDL_GetTicks() - startticks) >= 80)
{
if (multi)
P2ON = true;
Run();
}
SDL_BlitSurface(back, NULL, screen, NULL);
sdlBlitApple();
sdlBlitMushroom();
sdlPlaySongWhenEat();
sdlBlitPlayer1();
sdlBlitPlayer2(multi);
sdlChangeEvent(multi);
SDL_Flip(screen);
}
if (!freeall)
sdlClose();
}
int main(int argc, char *argv[])
{
SCPlayer player;
if (argc < 2) {
std::cerr << "Usage: scplay <filename>" << std::endl;
exit(1);
}
if (!player.load(argv[1])) {
std::cerr << "Cannot open file " << argv[1] << std::endl;
exit(1);
}
if(sdlInit(&player) != 0) {
std::cerr << "Failed to initialise audio:" << SDL_GetError() << std::endl;
SDL_Quit();
exit(1);
}
player.init(mixerFreq);
std::cout << "Playing: " << argv[1] << std::endl;
std::cout << "Hit the return key to exit." << std::endl;
SDL_PauseAudio(0);
getchar();
SDL_PauseAudio(1);
SDL_Quit();
return 0;
}
extern "C" int SDL_main(int, char **) // 2-arg form is required by SDL
{
if (!sdlInit(250, 140, "../img/icon.png", "Music Test")) {
return EXIT_FAILURE;
}
SdlSurface play = sdlLoadImage("../img/button-play.png");
SdlSurface pause = sdlLoadImage("../img/button-pause.png");
SdlSurface next = sdlLoadImage("../img/button-next.png");
SdlSurface prev = sdlLoadImage("../img/button-prev.png");
// Define the control buttons.
GuiButton playButton{105, 90, play};
GuiButton nextTrack{155, 90, next};
GuiButton prevTrack{55, 90, prev};
std::vector<GuiButton *> buttons = {&playButton, &nextTrack, &prevTrack};
auto font = sdlLoadFont("../DejaVuSans.ttf", 14);
auto white = SDL_Color{255, 255, 255, 0};
sdlDrawText(font, "Now playing:", SDL_Rect{10, 10, 230, 20}, white);
auto trackTitle = SDL_Rect{10, 30, 230, 50};
sdlDrawText(font, "Nothing", trackTitle, white);
SDL_UpdateRect(screen, 0, 0, 0, 0);
auto musicFiles = getMusicFiles("../music");
assert(!musicFiles.empty());
int trackNum = 0;
playButton.onClick([&] {
if (!Mix_PlayingMusic()) { // have we started playing music at all
auto &track = musicFiles[trackNum];
sdlPlayMusic(track.music);
playButton.setImage(pause);
sdlDrawText(font, track.path, trackTitle, white);
}
else {
if (Mix_PausedMusic()) {
playButton.setImage(pause);
Mix_ResumeMusic();
}
else {
playButton.setImage(play);
Mix_PauseMusic();
}
}
});
nextTrack.onClick([&] {
if (!Mix_PlayingMusic()) return;
trackNum = (trackNum + 1) % musicFiles.size();
auto &track = musicFiles[trackNum];
sdlDrawText(font, track.path, trackTitle, white);
if (Mix_PausedMusic()) {
sdlPlayMusic(track.music);
Mix_PauseMusic();
}
else {
sdlPlayMusic(track.music);
}
});
prevTrack.onClick([&] {
if (!Mix_PlayingMusic()) return;
trackNum = (trackNum - 1) % musicFiles.size();
auto &track = musicFiles[trackNum];
sdlDrawText(font, track.path, trackTitle, white);
if (Mix_PausedMusic()) {
sdlPlayMusic(track.music);
Mix_PauseMusic();
}
else {
sdlPlayMusic(track.music);
}
});
bool isDone = false;
SDL_Event event;
while (!isDone) {
while (SDL_PollEvent(&event)) {
if (event.type == SDL_MOUSEBUTTONUP) {
handleMouseUp(event.button, buttons);
}
else if (event.type == SDL_QUIT) {
Mix_HaltMusic();
isDone = true;
}
}
SDL_UpdateRect(screen, 0, 0, 0, 0);
SDL_Delay(1);
}
return EXIT_SUCCESS;
}
int main(int argc, char **argv)
{
FILE *fp;
int width, height, alpha;
unsigned char *image, *fb;
SDL_Surface *screen;
struct triangles *triangles, *best, *absbest;
long long diff;
float percdiff, bestdiff;
/* Initialization */
srand(time(NULL));
state.max_shapes = 64;
state.max_shapes_incremental = 1;
state.temperature = 0.10;
state.generation = 0;
state.absbestdiff = 100; /* 100% is worst diff possible. */
/* Check arity and parse additional args if any. */
if (argc < 4) {
showHelp(argv[0]);
exit(1);
}
if (argc > 4) {
int j;
for (j = 4; j < argc; j++) {
int moreargs = j+1 < argc;
if (!strcmp(argv[j],"--use-triangles") && moreargs) {
opt_use_triangles = atoi(argv[++j]);
} else if (!strcmp(argv[j],"--use-circles") && moreargs) {
opt_use_circles = atoi(argv[++j]);
} else if (!strcmp(argv[j],"--max-shapes") && moreargs) {
state.max_shapes = atoi(argv[++j]);
} else if (!strcmp(argv[j],"--initial-shapes") && moreargs) {
state.max_shapes_incremental = atoi(argv[++j]);
} else if (!strcmp(argv[j],"--mutation-rate") && moreargs) {
opt_mutation_rate = atoi(argv[++j]);
} else if (!strcmp(argv[j],"--restart")) {
opt_restart = 1;
} else if (!strcmp(argv[j],"--help")) {
showHelp(argv[0]);
} else {
fprintf(stderr,"Invalid options.");
showHelp(argv[0]);
exit(1);
}
}
}
/* Sanity check. */
if (state.max_shapes_incremental > state.max_shapes)
state.max_shapes = state.max_shapes_incremental;
if (opt_mutation_rate > 1000)
opt_mutation_rate = 1000;
/* Load the PNG in memory. */
fp = fopen(argv[1],"rb");
if (!fp) {
perror("Opening PNG file");
exit(1);
}
if ((image = PngLoad(fp,&width,&height,&alpha)) == NULL) {
printf("Can't load the specified image.");
exit(1);
}
printf("Image %d %d, alpha:%d at %p\n", width, height, alpha, image);
fclose(fp);
/* Initialize SDL and allocate our arrays of triangles. */
screen = sdlInit(width,height,0);
fb = malloc(width*height*3);
triangles = mkRandomtriangles(state.max_shapes,width,height);
best = mkRandomtriangles(state.max_shapes,width,height);
absbest = mkRandomtriangles(state.max_shapes,width,height);
state.absbestdiff = bestdiff = 100;
/* Load the binary file if any. */
if (!opt_restart) {
loadBinary(argv[2],best);
} else {
best->inuse = state.max_shapes_incremental;
}
absbest->inuse = best->inuse;
memcpy(absbest->triangles,best->triangles,
sizeof(struct triangle)*best->count);
/* Show the current evolved image and the real image for one scond each. */
memset(fb,0,width*height*3);
drawtriangles(fb,width,height,best);
sdlShowRgb(screen,fb,width,height);
sleep(1);
sdlShowRgb(screen,image,width,height);
sleep(1);
/* Evolve the current solution using simulated annealing. */
while(1) {
state.generation++;
if (state.temperature > 0 && !(state.generation % 10)) {
state.temperature -= 0.00001;
if (state.temperature < 0) state.temperature = 0;
}
/* From time to time allow the current solution to use one more
* triangle, up to the configured max number. */
if ((state.generation % 1000) == 0) {
if (state.max_shapes_incremental < triangles->count &&
triangles->inuse > state.max_shapes_incremental-1)
{
state.max_shapes_incremental++;
}
}
/* Copy what is currenly the best solution, and mutate it. */
memcpy(triangles->triangles,best->triangles,
sizeof(struct triangle)*best->count);
triangles->inuse = best->inuse;
mutatetriangles(triangles,10,width,height);
/* Draw the mutated solution, and check what is its fitness.
* In our case the fitness is the difference bewteen the target
* image and our image. */
memset(fb,0,width*height*3);
drawtriangles(fb,width,height,triangles);
diff = computeDiff(image,fb,width,height);
/* The percentage of difference is calculate taking the ratio between
* the maximum difference and the current difference.
* The magic constant 422 is actually the max difference between
* two pixels as r,g,b coordinates in the space, so sqrt(255^2*3). */
percdiff = (float)diff/(width*height*442)*100;
if (percdiff < bestdiff ||
(state.temperature > 0 &&
((float)rand()/RAND_MAX) < state.temperature &&
(percdiff-state.absbestdiff) < 2*state.temperature))
{
/* Save what is currently our "best" solution, even if actually
* this may be a jump backward depending on the temperature.
* It will be used as a base of the next iteration. */
best->inuse = triangles->inuse;
memcpy(best->triangles,triangles->triangles,
sizeof(struct triangle)*best->count);
if (percdiff < bestdiff) {
/* We always save a copy of the absolute best solution we found
* so far, after some generation without finding anything better
* we may jump back to that solution.
*
* We also use the absolute best solution to save the program
* state in the binary file, and as SVG output. */
absbest->inuse = best->inuse;
memcpy(absbest->triangles,best->triangles,
sizeof(struct triangle)*best->count);
state.absbestdiff = percdiff;
}
printf("Diff is %f%% (inuse:%d, max:%d, gen:%lld, temp:%f)\n",
percdiff,
triangles->inuse,
state.max_shapes_incremental,
state.generation,
state.temperature);
bestdiff = percdiff;
sdlShowRgb(screen,fb,width,height);
}
processSdlEvents();
/* From time to time save the current state into a binary save
* and produce an SVG of the current solution. */
if ((state.generation % 100) == 0) {
saveSvg(argv[3],absbest,width,height);
saveBinary(argv[2],absbest);
}
}
return 0;
}
