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#include "draw.h"
#include <string.h>
#define place_pixel(_p, _w, _h) \
{ *(uint32_t *)(disp->back_buffer + BPP * (_w) + (WIDTH * BPP * (_h))) = _p; }
#define place_pixel_pos(_p, _pos) \
{ *(uint32_t *)(disp->back_buffer + BPP * (_pos)) = _p; }
int mx;
int my;
void update_display(DISPLAY *disp) {
for (int i = 0; i < 20; i++) {
place_pixel(0xFFFFFFFF, mx + i, my + i);
place_pixel(0xFFFFFFFF, mx, my + i / 2);
place_pixel(0xFFFFFFFF, mx + i / 2, my);
}
for (int i = 0; i < disp->size; i++)
disp->true_buffer[i] = disp->back_buffer[i];
// memcpy(disp->true_buffer, disp->back_buffer, disp->size);
}
void draw_wallpaper(DISPLAY *disp) {
memcpy(disp->back_buffer, disp->wallpaper_buffer, disp->size);
}
void draw_mouse(DISPLAY *disp, int mouse_x, int mouse_y) {
mx = mouse_x;
my = mouse_y;
update_full_display(disp, mouse_x, mouse_y);
}
void draw_window(DISPLAY *disp, const WINDOW *w) {
int x, y;
uint8_t border_size = disp->border_size;
const int px = w->x + border_size;
const int py = w->y;
const int sx = w->sx;
const int sy = w->sy;
x = px;
y = py;
for (int i = 0; i < sy; i++) {
if ((i + py) * WIDTH + px > HEIGHT * WIDTH)
break;
uint32_t *ptr = disp->back_buffer + BPP * ((i + py) * WIDTH) + px * BPP;
if (i * sx > HEIGHT * WIDTH)
break;
uint32_t *bm = &w->bitmap_ptr[i * sx];
// ((uint8_t *)w->bitmap_ptr) + BPP * ((i + py) * WIDTH) + px * BPP;
for (int j = 0; j < sx; j++) {
ptr[j] = bm[j];
}
}
}
void update_active_window(DISPLAY *disp) {
for (int i = 0; i < 100; i++) {
if (!disp->clients[i])
continue;
if (!disp->clients[i]->w)
continue;
draw_window(disp, disp->clients[i]->w);
}
}
void update_full_display(DISPLAY *disp, int mouse_x, int mouse_y) {
draw_wallpaper(disp); /*
for (int i = 0; i < 100; i++) {
if (!disp->windows[i])
continue;
draw_window(disp, disp->windows[i]);
}*/
update_active_window(disp);
update_display(disp);
}
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