/* returns a bitmap description string */
static void get_jpeg_desc(AL_CONST DATAFILE *dat, char *s)
{
BITMAP *bmp = (BITMAP *)load_memory_jpg(dat->dat, dat->size, NULL);
sprintf(s, "JPG image (%dx%d truecolor, %ld KB)", bmp->w, bmp->h, dat->size / 1024);
destroy_bitmap(bmp);
}
static void trans_mjpeg2bgr(const unsigned char * src, unsigned char * dst, int width, int height, int srcsize)
{
unsigned char * bmp;
unsigned char * jpegbuff;
jpegbuff = malloc(srcsize + 0x1a4);
int newsrcsize = mjpeg2jpeg(jpegbuff, src, srcsize);
bmp = load_memory_jpg(jpegbuff, newsrcsize);
memcpy(dst, bmp, width * height * 3);
free(jpegbuff);
free(bmp);
}
/* draws a bitmap onto the grabber object view window */
static void plot_jpeg(AL_CONST DATAFILE *dat, int x, int y)
{
BITMAP *b = load_memory_jpg(dat->dat, dat->size, NULL);
int w = b->w;
int h = b->h;
fixed scale;
if (w > SCREEN_W-x-8) {
scale = itofix(SCREEN_W-x-8) / w;
w = (w * scale) >> 16;
h = (h * scale) >> 16;
}
static int
preview_proc(int msg, DIALOG *d, int c)
{
BITMAP *bmp;
static int quality = 75, flags = JPG_SAMPLING_444;
int new_quality, new_flags = 0;
int size;
(void)c;
new_quality = settings_dialog[QUALITY_SLIDER].d2 + 1;
if (settings_dialog[SS_444_RADIO].flags & D_SELECTED)
new_flags = JPG_SAMPLING_444;
if (settings_dialog[SS_422_RADIO].flags & D_SELECTED)
new_flags = JPG_SAMPLING_422;
if (settings_dialog[SS_411_RADIO].flags & D_SELECTED)
new_flags = JPG_SAMPLING_411;
if (settings_dialog[GREYSCALE_CHECK].flags & D_SELECTED)
new_flags |= JPG_GREYSCALE;
if (settings_dialog[OPTIMIZE_CHECK].flags & D_SELECTED)
new_flags |= JPG_OPTIMIZE;
switch (msg) {
case MSG_START:
d->dp2 = (void *)create_bitmap(d->w, d->h);
bmp = (BITMAP *)d->dp;
d->dp3 = malloc(ESTIMATED_MAX_JPG_SIZE(bmp));
clear_to_color((BITMAP *)d->dp2, gui_mg_color);
d->d2 = 20;
sprintf(size_string, "Size: ?");
break;
case MSG_END:
destroy_bitmap((BITMAP *)d->dp2);
free(d->dp3);
break;
case MSG_DRAW:
clear_to_color((BITMAP *)d->dp2, gui_mg_color);
bmp = (BITMAP *)d->dp;
bmp = create_sub_bitmap(bmp, MAX(0, (bmp->w - d->w) / 2), MAX(0, (bmp->h - d->h) / 2), d->w, d->h);
if (!bmp)
goto preview_error;
size = ESTIMATED_MAX_JPG_SIZE(bmp);
if (save_memory_jpg_ex(d->dp3, &size, bmp, NULL, quality, flags, NULL))
goto preview_error;
size = ESTIMATED_MAX_JPG_SIZE(bmp);
destroy_bitmap(bmp);
bmp = load_memory_jpg(d->dp3, size, NULL);
if (!bmp)
goto preview_error;
blit(bmp, (BITMAP *)d->dp2, 0, 0, 0, 0, bmp->w, bmp->h);
rect(screen, d->x - 1, d->y - 1, d->x + d->w, d->y + d->h, gui_fg_color);
blit((BITMAP *)d->dp2, screen, 0, 0, d->x, d->y, d->w, d->h);
destroy_bitmap(bmp);
object_message(&settings_dialog[QUALITY_TEXT], MSG_DRAW, 0);
break;
case MSG_IDLE:
if (d->d2 > 0) {
d->d2--;
if (d->d2 == 0) {
quality = new_quality;
flags = new_flags;
bmp = (BITMAP *)d->dp;
size = ESTIMATED_MAX_JPG_SIZE(bmp);
if (save_memory_jpg_ex(d->dp3, &size, bmp, NULL, quality, flags, NULL))
goto preview_error;
sprintf(size_string, "Size: %dx%d, %.1f Kbytes ", bmp->w, bmp->h, (double)size / 1024.0);
object_message(&settings_dialog[SIZE_TEXT], MSG_DRAW, 0);
return D_REDRAWME;
}
}
if ((new_quality != quality) || (new_flags != flags)) {
quality = new_quality;
flags = new_flags;
d->d2 = 20;
if (flags & JPG_GREYSCALE) {
settings_dialog[SS_444_RADIO].flags |= D_DISABLED;
settings_dialog[SS_422_RADIO].flags |= D_DISABLED;
settings_dialog[SS_411_RADIO].flags |= D_DISABLED;
}
else {
settings_dialog[SS_444_RADIO].flags &= ~D_DISABLED;
settings_dialog[SS_422_RADIO].flags &= ~D_DISABLED;
settings_dialog[SS_411_RADIO].flags &= ~D_DISABLED;
}
settings_dialog[SS_444_RADIO].fg = (flags & JPG_GREYSCALE ? gui_mg_color : gui_fg_color);
settings_dialog[SS_422_RADIO].fg = (flags & JPG_GREYSCALE ? gui_mg_color : gui_fg_color);
settings_dialog[SS_411_RADIO].fg = (flags & JPG_GREYSCALE ? gui_mg_color : gui_fg_color);
object_message(&settings_dialog[SS_444_RADIO], MSG_DRAW, 0);
object_message(&settings_dialog[SS_422_RADIO], MSG_DRAW, 0);
object_message(&settings_dialog[SS_411_RADIO], MSG_DRAW, 0);
return D_REDRAWME;
}
break;
}
return D_O_K;
preview_error:
line((BITMAP *)d->dp2, 0, 0, d->w - 1, d->h - 1, 0);
line((BITMAP *)d->dp2, d->w - 1, 0, 0, d->h - 1, 0);
blit((BITMAP *)d->dp2, screen, 0, 0, d->x, d->y, d->w, d->h);
return D_O_K;
}
int
main(int argc, char **argv)
{
BITMAP *bmp;
PACKFILE *f;
char *file = NULL, *times = NULL, *memory = NULL;
int arg, i, n, start, end, size;
allegro_init();
install_keyboard();
install_timer();
jpgalleg_init();
set_color_conversion(COLORCONV_NONE);
for (arg = 1; arg < argc; arg++) {
if (!strcmp(argv[arg], "-nommx"))
cpu_capabilities &= ~CPU_MMX;
else if (!strcmp(argv[arg], "-f"))
file = argv[++arg];
else if (!times)
times = argv[arg];
else
about();
}
if (times)
n = atoi(times);
else
n = 30;
if (!file)
file = "jpgalleg.jpg";
bmp = load_jpg(file, NULL);
if (!bmp) {
printf("Cannot find %s!\n", file);
return -1;
}
size = file_size(file);
memory = (char *)malloc(size);
if (!memory) {
printf("Not enough memory!\n");
return -1;
}
f = pack_fopen(file, F_READ);
pack_fread(memory, size, f);
pack_fclose(f);
LOCK_FUNCTION(timer_handler);
LOCK_VARIABLE(timer);
install_int(timer_handler, 10);
printf("Average timing for %d function calls:\n", n);
start = timer;
for (i = 0; i < n; i++)
bmp = load_jpg(file, NULL);
end = timer;
printf("load_jpg: %f seconds\n", ((float)end - (float)start) / 1000.0 / (float)n);
start = timer;
for (i = 0; i < n; i++)
bmp = load_memory_jpg(memory, size, NULL);
end = timer;
printf("load_memory_jpg: %f seconds\n", ((float)end - (float)start) / 1000.0 / (float)n);
free(memory);
return 0;
}
