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Support for random background loading from backrounds dir.

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This commit is contained in:
sorgelig
2020-01-03 10:04:56 +08:00
parent 8f3eea51fa
commit 6cd693bdf1
1 changed files with 88 additions and 50 deletions
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138
video.cpp
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@@ -970,6 +970,75 @@ static void vs_wait()
printf("vs_wait(us): %llu\n", t2 - t1);
}
static char *get_file_fromdir(const char* dir, int num, int *count)
{
static char name[256+32];
name[0] = 0;
if(count) *count = 0;
DIR *d = opendir(getFullPath(dir));
if (d)
{
int cnt = 0;
struct dirent *de = readdir(d);
while (de)
{
int len = strlen(de->d_name);
if (len > 4 && (!strcasecmp(de->d_name + len - 4, ".png") || !strcasecmp(de->d_name + len - 4, ".jpg")))
{
if (num == cnt) break;
cnt++;
}
de = readdir(d);
}
if (de)
{
sprintf(name, "%s/%s", dir, de->d_name);
}
closedir(d);
if(count) *count = cnt;
}
return name;
}
static Imlib_Image load_bg()
{
const char* bgdir = "backgrounds";
const char* fname = "menu.png";
if (!FileExists(fname))
{
fname = "menu.jpg";
if (!FileExists(fname)) fname = 0;
}
if (!fname && PathIsDir(bgdir))
{
int rndfd = open("/dev/urandom", O_RDONLY);
if (rndfd >= 0)
{
uint32_t rnd;
read(rndfd, &rnd, sizeof(rnd));
close(rndfd);
int count = 0;
get_file_fromdir(bgdir, -1, &count);
if (count > 0) fname = get_file_fromdir(bgdir, rnd % count, &count);
}
}
if (fname)
{
Imlib_Load_Error error = IMLIB_LOAD_ERROR_NONE;
Imlib_Image img = imlib_load_image_with_error_return(getFullPath(fname), &error);
if (img) return img;
printf("Image %s loading error %d\n", fname, error);
}
return NULL;
}
static int bg_has_picture = 0;
extern uint8_t _binary_logo_png_start[], _binary_logo_png_end[];
void video_menu_bg(int n, int idle)
@@ -1048,62 +1117,31 @@ void video_menu_bg(int n, int idle)
switch (n)
{
case 1:
if (menubg || FileExists("menu.png") || FileExists("menu.jpg"))
if (!menubg) menubg = load_bg();
if (menubg)
{
if (!menubg)
imlib_context_set_image(menubg);
int src_w = imlib_image_get_width();
int src_h = imlib_image_get_height();
printf("menubg: src_w=%d, src_h=%d\n", src_w, src_h);
if (*bg)
{
if (!menubg && FileExists("menu.png"))
{
error = IMLIB_LOAD_ERROR_NONE;
menubg = imlib_load_image_with_error_return(getFullPath("menu.png"), &error);
if (!menubg)
{
printf("menu.png error = %d\n", error);
}
}
if (!menubg && FileExists("menu.jpg"))
{
error = IMLIB_LOAD_ERROR_NONE;
menubg = imlib_load_image_with_error_return(getFullPath("menu.jpg"), &error);
if (!menubg)
{
printf("menu.jpg error = %d\n", error);
}
}
printf("menubg = %p\n", menubg);
imlib_context_set_image(*bg);
imlib_blend_image_onto_image(menubg, 0,
0, 0, //int source_x, int source_y,
src_w, src_h, //int source_width, int source_height,
0, 0, //int destination_x, int destination_y,
fb_width, fb_height //int destination_width, int destination_height
);
bg_has_picture = 1;
break;
}
if (menubg)
else
{
imlib_context_set_image(menubg);
int src_w = imlib_image_get_width();
int src_h = imlib_image_get_height();
printf("menubg: src_w=%d, src_h=%d\n", src_w, src_h);
if (*bg)
{
imlib_context_set_image(*bg);
imlib_blend_image_onto_image(menubg, 0,
0, 0, //int source_x, int source_y,
src_w, src_h, //int source_width, int source_height,
0, 0, //int destination_x, int destination_y,
fb_width, fb_height //int destination_width, int destination_height
);
bg_has_picture = 1;
break;
}
else
{
printf("*bg = 0!\n");
}
printf("*bg = 0!\n");
}
}
else
{
printf("Neither menu.png nor menu.jpg found!\n");
}
draw_checkers();
break;
case 2: