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V1.61 feature update: JPEG image viewer and JPEG wallpaper setting.

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This commit is contained in:
Chris
2026-02-24 21:51:41 +01:00
parent f694c490a6
commit 106adf1ac8
40 changed files with 16895 additions and 46 deletions
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35
src/kernel/graphics.c
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@@ -11,6 +11,12 @@ static uint32_t g_bg_color = 0xFF696969; // Dark gray background
static uint32_t g_bg_pattern[PATTERN_SIZE * PATTERN_SIZE];
static bool g_use_pattern = false;
// Wallpaper image support
static uint32_t *g_bg_image = NULL;
static int g_bg_image_w = 0;
static int g_bg_image_h = 0;
static bool g_use_image = false;
// Dirty rectangle tracking
static DirtyRect g_dirty = {0, 0, 0, 0, false};
@@ -277,7 +283,24 @@ void draw_string(int x, int y, const char *s, uint32_t color) {
void draw_desktop_background(void) {
if (!g_fb) return;
if (g_use_pattern) {
if (g_use_image && g_bg_image) {
// Draw wallpaper image (stretch/scale to screen)
int x1 = 0, y1 = 0, x2 = g_fb->width, y2 = g_fb->height;
if (g_clip_enabled) {
x1 = g_clip_x; y1 = g_clip_y;
x2 = g_clip_x + g_clip_w; y2 = g_clip_y + g_clip_h;
}
for (int y = y1; y < y2; y++) {
int src_y = y * g_bg_image_h / (int)g_fb->height;
if (src_y >= g_bg_image_h) src_y = g_bg_image_h - 1;
uint32_t *row = &g_back_buffer[y * g_fb->width + x1];
for (int x = x1; x < x2; x++) {
int src_x = x * g_bg_image_w / (int)g_fb->width;
if (src_x >= g_bg_image_w) src_x = g_bg_image_w - 1;
*row++ = g_bg_image[src_y * g_bg_image_w + src_x];
}
}
} else if (g_use_pattern) {
// Optimized tiled pattern: only draw within the clipping/dirty rect
int x1 = 0, y1 = 0, x2 = g_fb->width, y2 = g_fb->height;
if (g_clip_enabled) {
@@ -301,6 +324,7 @@ void draw_desktop_background(void) {
void graphics_set_bg_color(uint32_t color) {
g_bg_color = color;
g_use_pattern = false;
g_use_image = false;
}
void graphics_set_bg_pattern(const uint32_t *pattern) {
@@ -311,6 +335,15 @@ void graphics_set_bg_pattern(const uint32_t *pattern) {
g_bg_pattern[i] = pattern[i];
}
g_use_pattern = true;
g_use_image = false;
}
void graphics_set_bg_image(uint32_t *pixels, int w, int h) {
g_bg_image = pixels;
g_bg_image_w = w;
g_bg_image_h = h;
g_use_image = true;
g_use_pattern = false;
}
void draw_boredos_logo(int x, int y, int scale) {