diff options
Diffstat (limited to '03-wolfrand')
| -rw-r--r-- | 03-wolfrand/screenshot.gif | bin | 128974 -> 101948 bytes | |||
| -rw-r--r-- | 03-wolfrand/src/main.c | 34 |
2 files changed, 21 insertions, 13 deletions
diff --git a/03-wolfrand/screenshot.gif b/03-wolfrand/screenshot.gif Binary files differindex fd8ad07..f92007e 100644 --- a/03-wolfrand/screenshot.gif +++ b/03-wolfrand/screenshot.gif diff --git a/03-wolfrand/src/main.c b/03-wolfrand/src/main.c index 4d4fa34..5d90690 100644 --- a/03-wolfrand/src/main.c +++ b/03-wolfrand/src/main.c @@ -11,7 +11,7 @@ #define DISP_WIDTH 640 #define DISP_HEIGHT 480 -#define FPS 3.3 +#define FPS 15.0 #define DO_INIT(check, desc) \ if (!(check)) { \ @@ -46,9 +46,10 @@ int main(int argc, char **argv) bool pause = 0; - ALLEGRO_DISPLAY* d = NULL; - ALLEGRO_TIMER* t = NULL; - ALLEGRO_EVENT_QUEUE* eq = NULL; + ALLEGRO_DISPLAY *d = NULL; + ALLEGRO_BITMAP *b = NULL; + ALLEGRO_TIMER *t = NULL; + ALLEGRO_EVENT_QUEUE *eq = NULL; ALLEGRO_EVENT e; @@ -63,6 +64,8 @@ int main(int argc, char **argv) al_set_new_display_option(ALLEGRO_SINGLE_BUFFER, 1, ALLEGRO_REQUIRE); DO_INIT(d = al_create_display(DISP_WIDTH, DISP_HEIGHT), "display"); + al_set_new_bitmap_flags(ALLEGRO_MEMORY_BITMAP); + DO_INIT(b = al_create_bitmap(DISP_WIDTH, DISP_HEIGHT), "buffer"); al_register_event_source(eq, al_get_keyboard_event_source()); al_register_event_source(eq, al_get_display_event_source(d)); @@ -126,7 +129,7 @@ int main(int argc, char **argv) memset(bits[1], 0, (DISP_HEIGHT - 1) * DISP_WIDTH / 8); for (x = 1; x < DISP_WIDTH - 1; x++) { - if (randombytes_random() < 0x20000000) + if (randombytes_random() < 0x10000000) bit_toggle(bits[0], x); } @@ -148,20 +151,23 @@ int main(int argc, char **argv) /* draw frame */ - al_clear_to_color(al_map_rgb(0, 0, 0)); + al_lock_bitmap(b, ALLEGRO_PIXEL_FORMAT_ANY, ALLEGRO_LOCK_WRITEONLY); + + al_set_target_bitmap(b); for (y = 0; y < DISP_HEIGHT; y++) { for (x = 0; x < DISP_WIDTH; x++) { - if (bit_get(bits[y], x)) { - al_draw_filled_rectangle( - (float)x, (float)y, - (float)(x + 1), (float)(y + 1), - al_map_rgb(255, 255, 255) - ); - } + if (bit_get(bits[y], x)) + al_put_pixel(x, y, al_map_rgb(255, 255, 255)); + else + al_put_pixel(x, y, al_map_rgb(0, 0, 0)); } } + al_unlock_bitmap(b); + + al_set_target_backbuffer(d); + al_draw_bitmap(b, 0, 0, 0); al_flip_display(); } } @@ -171,6 +177,8 @@ done: if (d) al_destroy_display(d); + if (b) + al_destroy_bitmap(b); if (t) al_destroy_timer(t); if (eq) |
