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#include <stdio.h>
#include <stdlib.h>
#include "allegro5/allegro.h"
#include "allegro5/allegro_image.h"
#include "allegro5/allegro_font.h"
#include "common.c"
typedef struct BITMAP_TYPE {
ALLEGRO_BITMAP* bmp;
ALLEGRO_BITMAP* clone;
ALLEGRO_BITMAP* decomp;
ALLEGRO_BITMAP* lock_clone;
ALLEGRO_PIXEL_FORMAT format;
const char* name;
} BITMAP_TYPE;
int main(int argc, char **argv)
{
const char *filename;
ALLEGRO_DISPLAY *display;
ALLEGRO_TIMER *timer;
ALLEGRO_EVENT_QUEUE *queue;
ALLEGRO_FONT *font;
ALLEGRO_BITMAP *bkg;
bool redraw = true;
int ii;
int cur_bitmap = 0;
bool compare = false;
#define NUM_BITMAPS 4
BITMAP_TYPE bitmaps[NUM_BITMAPS] = {
{NULL, NULL, NULL, NULL, ALLEGRO_PIXEL_FORMAT_ANY, "Uncompressed"},
{NULL, NULL, NULL, NULL, ALLEGRO_PIXEL_FORMAT_COMPRESSED_RGBA_DXT1, "DXT1"},
{NULL, NULL, NULL, NULL, ALLEGRO_PIXEL_FORMAT_COMPRESSED_RGBA_DXT3, "DXT3"},
{NULL, NULL, NULL, NULL, ALLEGRO_PIXEL_FORMAT_COMPRESSED_RGBA_DXT5, "DXT5"},
};
if (argc > 1) {
filename = argv[1];
}
else {
filename = "data/mysha.pcx";
}
if (!al_init()) {
abort_example("Could not init Allegro.\n");
}
open_log();
if (argc > 2) {
al_set_new_display_adapter(atoi(argv[2]));
}
al_init_image_addon();
al_init_font_addon();
al_install_keyboard();
display = al_create_display(640, 480);
if (!display) {
abort_example("Error creating display\n");
}
for (ii = 0; ii < NUM_BITMAPS; ii++) {
double t0, t1;
al_set_new_bitmap_format(bitmaps[ii].format);
/* Load */
t0 = al_get_time();
bitmaps[ii].bmp = al_load_bitmap(filename);
t1 = al_get_time();
if (!bitmaps[ii].bmp) {
abort_example("%s not found or failed to load\n", filename);
}
log_printf("%s load time: %f sec\n", bitmaps[ii].name, t1 - t0);
/* Clone */
t0 = al_get_time();
bitmaps[ii].clone = al_clone_bitmap(bitmaps[ii].bmp);
t1 = al_get_time();
if (!bitmaps[ii].clone) {
abort_example("Couldn't clone %s\n", bitmaps[ii].name);
}
log_printf("%s clone time: %f sec\n", bitmaps[ii].name, t1 - t0);
/* Decompress */
al_set_new_bitmap_format(ALLEGRO_PIXEL_FORMAT_ANY);
t0 = al_get_time();
bitmaps[ii].decomp = al_clone_bitmap(bitmaps[ii].bmp);
t1 = al_get_time();
if (!bitmaps[ii].decomp) {
abort_example("Couldn't decompress %s\n", bitmaps[ii].name);
}
log_printf("%s decompress time: %f sec\n", bitmaps[ii].name, t1 - t0);
/* RW lock */
al_set_new_bitmap_format(bitmaps[ii].format);
bitmaps[ii].lock_clone = al_clone_bitmap(bitmaps[ii].bmp);
if (!bitmaps[ii].lock_clone) {
abort_example("Couldn't clone %s\n", bitmaps[ii].name);
}
if (al_get_bitmap_width(bitmaps[ii].bmp) > 128
&& al_get_bitmap_height(bitmaps[ii].bmp) > 128) {
int bitmap_format = al_get_bitmap_format(bitmaps[ii].bmp);
int block_width = al_get_pixel_block_width(bitmap_format);
int block_height = al_get_pixel_block_height(bitmap_format);
/* Lock and unlock it, hopefully causing a no-op operation */
al_lock_bitmap_region_blocked(bitmaps[ii].lock_clone,
16 / block_width, 16 / block_height, 64 / block_width,
64 / block_height, ALLEGRO_LOCK_READWRITE);
al_unlock_bitmap(bitmaps[ii].lock_clone);
}
}
bkg = al_load_bitmap("data/bkg.png");
if (!bkg) {
abort_example("data/bkg.png not found or failed to load\n");
}
al_set_new_bitmap_format(ALLEGRO_PIXEL_FORMAT_ANY);
font = al_create_builtin_font();
timer = al_create_timer(1.0 / 30);
queue = al_create_event_queue();
al_register_event_source(queue, al_get_display_event_source(display));
al_register_event_source(queue, al_get_keyboard_event_source());
al_register_event_source(queue, al_get_timer_event_source(timer));
al_start_timer(timer);
while (1) {
ALLEGRO_EVENT event;
al_wait_for_event(queue, &event);
switch (event.type) {
case ALLEGRO_EVENT_DISPLAY_CLOSE:
goto EXIT;
case ALLEGRO_EVENT_TIMER:
redraw = true;
break;
case ALLEGRO_EVENT_KEY_DOWN:
switch (event.keyboard.keycode) {
case ALLEGRO_KEY_LEFT:
cur_bitmap = (cur_bitmap - 1 + NUM_BITMAPS) % NUM_BITMAPS;
break;
case ALLEGRO_KEY_RIGHT:
cur_bitmap = (cur_bitmap + 1) % NUM_BITMAPS;
break;
case ALLEGRO_KEY_SPACE:
compare = true;
break;
case ALLEGRO_KEY_ESCAPE:
goto EXIT;
}
break;
case ALLEGRO_EVENT_KEY_UP:
if (event.keyboard.keycode == ALLEGRO_KEY_SPACE) {
compare = false;
}
break;
}
if (redraw && al_is_event_queue_empty(queue)) {
int w = al_get_bitmap_width(bitmaps[cur_bitmap].bmp);
int h = al_get_bitmap_height(bitmaps[cur_bitmap].bmp);
int idx = compare ? 0 : cur_bitmap;
redraw = false;
al_clear_to_color(al_map_rgb_f(0, 0, 0));
al_draw_bitmap(bkg, 0, 0, 0);
al_draw_textf(font, al_map_rgb_f(1, 1, 1), 5, 5, ALLEGRO_ALIGN_LEFT,
"SPACE to compare. Arrows to switch. Format: %s", bitmaps[idx].name);
al_draw_bitmap(bitmaps[idx].bmp, 0, 20, 0);
al_draw_bitmap(bitmaps[idx].clone, w, 20, 0);
al_draw_bitmap(bitmaps[idx].decomp, 0, 20 + h, 0);
al_draw_bitmap(bitmaps[idx].lock_clone, w, 20 + h, 0);
al_flip_display();
}
}
EXIT:
al_destroy_bitmap(bkg);
for (ii = 0; ii < NUM_BITMAPS; ii++) {
al_destroy_bitmap(bitmaps[ii].bmp);
}
close_log(false);
return 0;
}
/* vim: set sts=4 sw=4 et: */
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