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perf: optimize graphics rendering and implement caching

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boreddevnl
2026-05-09 17:27:39 +02:00
parent eb05d62891
commit ff9be87c5d
2 changed files with 104 additions and 29 deletions
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66
src/wm/wallpaper.c
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@@ -20,6 +20,53 @@ static volatile const char *pending_wallpaper_path = NULL;
static char pending_path_buf[256];
#define WALLPAPER_CONF_PATH "/Library/BWM/Wallpaper/wallpaper"
#define WALLPAPER_CACHE_PATH "/Library/Caches/Wallpaper.bin"
static void wallpaper_save_cache(void) {
if (!wp_pixels || wp_width <= 0 || wp_height <= 0) return;
fat32_mkdir("/Library/Caches");
FAT32_FileHandle *fh = fat32_open(WALLPAPER_CACHE_PATH, "w");
if (fh && fh->valid) {
uint32_t w = (uint32_t)wp_width;
uint32_t h = (uint32_t)wp_height;
fat32_write(fh, &w, 4);
fat32_write(fh, &h, 4);
fat32_write(fh, wp_pixels, w * h * 4);
fat32_close(fh);
}
}
static int wallpaper_load_cache(void) {
if (!fat32_exists(WALLPAPER_CACHE_PATH)) return 0;
FAT32_FileHandle *fh = fat32_open(WALLPAPER_CACHE_PATH, "r");
if (!fh || !fh->valid) return 0;
uint32_t w, h;
fat32_read(fh, &w, 4);
fat32_read(fh, &h, 4);
if (w != (uint32_t)get_screen_width() || h != (uint32_t)get_screen_height()) {
fat32_close(fh);
return 0;
}
if (!wp_pixels) {
wp_pixels = (uint32_t*)kmalloc(MAX_WP_WIDTH * MAX_WP_HEIGHT * sizeof(uint32_t));
if (!wp_pixels) { fat32_close(fh); return 0; }
}
uint32_t total_size = w * h * 4;
uint32_t bytes_read = fat32_read(fh, wp_pixels, total_size);
fat32_close(fh);
if (bytes_read == total_size) {
wp_width = (int)w;
wp_height = (int)h;
graphics_set_bg_image(wp_pixels, wp_width, wp_height);
return 1;
}
return 0;
}
// Simple nearest-neighbor scale from decoded RGBA to ARGB pixel buffer
static void scale_rgba_to_argb(const unsigned char *rgba, int src_w, int src_h,
@@ -72,6 +119,7 @@ static int decode_and_set_wallpaper(const unsigned char *jpg_data, unsigned int
stbi_image_free(rgba);
graphics_set_bg_image(wp_pixels, wp_width, wp_height);
wallpaper_save_cache();
return 1;
}
@@ -190,13 +238,17 @@ int wallpaper_get_width(void) { return wp_width; }
int wallpaper_get_height(void) { return wp_height; }
void wallpaper_init(void) {
wallpaper_load_setting();
if (pending_wallpaper_path == NULL) {
if (fat32_exists("/Library/images/Wallpapers/bored.jpg")) {
wallpaper_request_set_from_file("/Library/images/Wallpapers/bored.jpg");
} else if (fat32_exists("/Library/images/Wallpapers/moon.jpg")) {
wallpaper_request_set_from_file("/Library/images/Wallpapers/moon.jpg");
if (wallpaper_load_cache()) {
serial_str("[WALLPAPER] Loaded from cache\n");
} else {
wallpaper_load_setting();
if (pending_wallpaper_path == NULL) {
if (fat32_exists("/Library/images/Wallpapers/bored.jpg")) {
wallpaper_request_set_from_file("/Library/images/Wallpapers/bored.jpg");
} else if (fat32_exists("/Library/images/Wallpapers/moon.jpg")) {
wallpaper_request_set_from_file("/Library/images/Wallpapers/moon.jpg");
}
}
}
}