int main(void)
{
if (SDL_Init(SDL_INIT_VIDEO | SDL_INIT_TIMER) != 0) {
fprintf(stderr, "Could not initialize SDL: %s\n", SDL_GetError());
return 1;
}
display = SDL_SetVideoMode(W, H, 0, SDL_SWSURFACE);
if (display == NULL) {
fprintf(stderr, "Could not open display: %s\n", SDL_GetError());
SDL_Quit();
return 1;
}
GP_ContextFromSDLSurface(&context, display);
black_pixel = GP_RGBToContextPixel(0x00, 0x00, 0x00, &context);
darkgray_pixel = GP_RGBToContextPixel(0x7f, 0x7f, 0x7f, &context);
redraw_screen();
SDL_Flip(display);
event_loop();
SDL_Quit();
return 0;
}
static void redraw(struct GP_Context *context)
{
GP_Pixel white_pixel, black_pixel;
black_pixel = GP_RGBToContextPixel(0x00, 0x00, 0x00, context);
white_pixel = GP_RGBToContextPixel(0xff, 0xff, 0xff, context);
GP_Fill(context, black_pixel);
GP_Line(context, 0, 0, context->w - 1, context->h - 1, white_pixel);
GP_Line(context, 0, context->h - 1, context->w - 1, 0, white_pixel);
}
static void redraw(GP_Backend *self)
{
GP_Context *context = self->context;
GP_Pixel white_pixel, black_pixel;
black_pixel = GP_RGBToContextPixel(0x00, 0x00, 0x00, context);
white_pixel = GP_RGBToContextPixel(0xff, 0xff, 0xff, context);
GP_Fill(context, black_pixel);
GP_Line(context, 0, 0, context->w - 1, context->h - 1, white_pixel);
GP_Line(context, 0, context->h - 1, context->w - 1, 0, white_pixel);
/* Update the backend screen */
GP_BackendFlip(self);
}
int main(int argc, char *argv[])
{
const char *backend_opts = "X11";
if (argc > 1)
font = GP_FontFaceLoad(argv[1], 0, 20);
print_instructions();
win = GP_BackendInit(backend_opts, "Font Align Test");
if (win == NULL) {
fprintf(stderr, "Failed to initalize backend '%s'\n",
backend_opts);
return 1;
}
black_pixel = GP_RGBToContextPixel(0x00, 0x00, 0x00, win->context);
red_pixel = GP_RGBToContextPixel(0xff, 0x00, 0x00, win->context);
blue_pixel = GP_RGBToContextPixel(0x00, 0x00, 0xff, win->context);
green_pixel = GP_RGBToContextPixel(0x00, 0xff, 0x00, win->context);
yellow_pixel = GP_RGBToContextPixel(0xff, 0xff, 0x00, win->context);
white_pixel = GP_RGBToContextPixel(0xff, 0xff, 0xff, win->context);
darkgray_pixel = GP_RGBToContextPixel(0x7f, 0x7f, 0x7f, win->context);
redraw_screen();
GP_BackendFlip(win);
event_loop();
return 0;
}
int main(int argc, char *argv[])
{
const char *backend_opts = "X11";
print_instructions();
if (argc > 1) {
font_path = argv[1];
fprintf(stderr, "\nLoading font '%s'\n", argv[1]);
font = GP_FontFaceLoad(argv[1], 0, font_h);
}
win = GP_BackendInit(backend_opts, "Font Test");
if (win == NULL) {
fprintf(stderr, "Failed to initalize backend '%s'\n",
backend_opts);
return 1;
}
white_pixel = GP_RGBToContextPixel(0xff, 0xff, 0xff, win->context);
gray_pixel = GP_RGBToContextPixel(0xbe, 0xbe, 0xbe, win->context);
dark_gray_pixel = GP_RGBToContextPixel(0x7f, 0x7f, 0x7f, win->context);
black_pixel = GP_RGBToContextPixel(0x00, 0x00, 0x00, win->context);
red_pixel = GP_RGBToContextPixel(0xff, 0x00, 0x00, win->context);
blue_pixel = GP_RGBToContextPixel(0x00, 0x00, 0xff, win->context);
redraw_screen();
GP_BackendFlip(win);
event_loop();
return 0;
}
static void redraw(GP_Backend *backend)
{
GP_Context *context = backend->context;
/* Now draw some testing patters */
black_pixel = GP_RGBToContextPixel(0x00, 0x00, 0x00, context);
white_pixel = GP_RGBToContextPixel(0xff, 0xff, 0xff, context);
red_pixel = GP_RGBToContextPixel(0xff, 0x00, 0x00, context);
blue_pixel = GP_RGBToContextPixel(0x00, 0x00, 0xff, context);
green_pixel = GP_RGBToContextPixel(0x00, 0xff, 0x00, context);
GP_Fill(context, white_pixel);
unsigned int i, j;
for (i = 0; i < 40; i++) {
GP_HLineXYW(context, 0, i, i, black_pixel);
GP_HLineXYW(context, 1, i + 40, i, black_pixel);
GP_HLineXYW(context, 2, i + 80, i, black_pixel);
GP_HLineXYW(context, 3, i + 120, i, black_pixel);
GP_HLineXYW(context, 4, i + 160, i, black_pixel);
GP_HLineXYW(context, 5, i + 200, i, black_pixel);
GP_HLineXYW(context, 6, i + 240, i, black_pixel);
GP_HLineXYW(context, 7, i + 280, i, black_pixel);
}
for (i = 0; i < 256; i++) {
for (j = 0; j < 256; j++) {
uint8_t val = 1.00 * sqrt(i*i + j*j)/sqrt(2) + 0.5;
GP_Pixel pix = GP_RGBToContextPixel(i, j, val, context);
GP_PutPixel(context, i + 60, j + 10, pix);
}
}
GP_Text(context, NULL, 60, 270, GP_VALIGN_BELOW|GP_ALIGN_RIGHT,
black_pixel, white_pixel, "Lorem Ipsum dolor sit...");
GP_Text(context, NULL, 60, 290, GP_VALIGN_BELOW|GP_ALIGN_RIGHT,
red_pixel, white_pixel, "Lorem Ipsum dolor sit...");
GP_Text(context, NULL, 60, 310, GP_VALIGN_BELOW|GP_ALIGN_RIGHT,
green_pixel, white_pixel, "Lorem Ipsum dolor sit...");
GP_Text(context, NULL, 60, 330, GP_VALIGN_BELOW|GP_ALIGN_RIGHT,
blue_pixel, white_pixel, "Lorem Ipsum dolor sit...");
/* Update the backend screen */
GP_BackendFlip(backend);
}
int main(int argc, char *argv[])
{
const char *backend_opts = "X11";
if (argc == 1) {
fprintf(stderr, "No file specified\n");
return 1;
}
if (argc > 2)
font = GP_FontFaceLoad(argv[2], 0, 16);
if (!read_file_head(argv[1]))
return 1;
backend = GP_BackendInit(backend_opts, "File View");
if (backend == NULL) {
fprintf(stderr, "Failed to initalize backend '%s'\n",
backend_opts);
return 1;
}
win = backend->context;
white_pixel = GP_RGBToContextPixel(0xff, 0xff, 0xff, win);
gray_pixel = GP_RGBToContextPixel(0xbe, 0xbe, 0xbe, win);
dark_gray_pixel = GP_RGBToContextPixel(0x7f, 0x7f, 0x7f, win);
black_pixel = GP_RGBToContextPixel(0x00, 0x00, 0x00, win);
red_pixel = GP_RGBToContextPixel(0xff, 0x00, 0x00, win);
blue_pixel = GP_RGBToContextPixel(0x00, 0x00, 0xff, win);
redraw_screen();
GP_BackendFlip(backend);
event_loop();
return 0;
}
int main(int argc, char *argv[])
{
const char *backend_opts = "X11";
int opt;
int pause_flag = 0;
int particles = 160;
while ((opt = getopt(argc, argv, "b:n:")) != -1) {
switch (opt) {
case 'b':
backend_opts = optarg;
break;
case 'n':
particles = atoi(optarg);
break;
default:
fprintf(stderr, "Invalid paramter '%c'\n", opt);
}
}
// GP_SetDebugLevel(10);
signal(SIGINT, sighandler);
signal(SIGSEGV, sighandler);
signal(SIGBUS, sighandler);
signal(SIGABRT, sighandler);
init_backend(backend_opts);
context = backend->context;
black_pixel = GP_RGBToContextPixel(0x00, 0x00, 0x00, context);
white_pixel = GP_RGBToContextPixel(0xff, 0xff, 0xff, context);
GP_Fill(context, black_pixel);
GP_BackendFlip(backend);
struct space *space;
space = space_create(particles, 10<<8, 10<<8, (context->w - 10)<<8, (context->h - 10)<<8);
for (;;) {
if (backend->Poll)
GP_BackendPoll(backend);
usleep(1000);
/* Read and parse events */
GP_Event ev;
while (GP_BackendGetEvent(backend, &ev)) {
GP_EventDump(&ev);
switch (ev.type) {
case GP_EV_KEY:
if (ev.code != GP_EV_KEY_DOWN)
continue;
switch (ev.val.key.key) {
case GP_KEY_ESC:
case GP_KEY_ENTER:
case GP_KEY_Q:
GP_BackendExit(backend);
return 0;
break;
case GP_KEY_P:
pause_flag = !pause_flag;
break;
case GP_KEY_G:
space->gay = 1;
break;
case GP_KEY_T:
space->gay = 0;
break;
}
break;
case GP_EV_SYS:
switch(ev.code) {
case GP_EV_SYS_QUIT:
GP_BackendExit(backend);
exit(0);
break;
case GP_EV_SYS_RESIZE:
GP_BackendResizeAck(backend);
space_destroy(space);
space = space_create(particles,
10<<8, 10<<8,
(context->w - 10)<<8,
(context->h - 10)<<8);
break;
}
break;
}
}
if (!pause_flag) {
space_time_tick(space, 1);
space_draw_particles(context, space);
GP_BackendFlip(backend);
}
}
GP_BackendExit(backend);
return 0;
}