Ben / moon

/**
 * @file lvgl_port_sdl.c
 * LVGL display driver for SDL2 simulator
 */

#include "lvgl_port.h"
#include "moon.h"
#include <string.h>
#include <stdio.h>

// Draw buffer for partial refresh (32 lines at 160px, ARGB8888)
#define DRAW_BUF_LINES 32
static uint8_t draw_buf[SCREEN_WIDTH * DRAW_BUF_LINES * 4];

static lv_display_t *display;

// Flush callback - copies LVGL buffer to framebuffer via blit_buf
static void flush_cb(lv_display_t *disp, const lv_area_t *area, uint8_t *px_map) {
    (void)disp;

    blit_buf_rect(px_map, area->x1, area->y1, area->x2 + 1, area->y2 + 1);

    lv_display_flush_ready(disp);
}

void lvgl_port_init(void) {
    lv_init();

    // Create display with ARGB8888 color format
    display = lv_display_create(SCREEN_WIDTH, SCREEN_HEIGHT);
    lv_display_set_color_format(display, LV_COLOR_FORMAT_ARGB8888);

    // Set draw buffers (single buffer mode for simplicity)
    lv_display_set_buffers(display, draw_buf, NULL,
                           sizeof(draw_buf), LV_DISPLAY_RENDER_MODE_PARTIAL);

    // Set flush callback
    lv_display_set_flush_cb(display, flush_cb);
}

lv_display_t *lvgl_port_get_display(void) {
    return display;
}