Move everything into a new repo.

1 files changed, 80 insertions, 0 deletions

diff --git a/userland/windowserver/draw.c b/userland/windowserver/draw.c
new file mode 100644
index 0000000..caa16a2
--- /dev/null
+++ b/userland/windowserver/draw.c
@@ -0,0 +1,80 @@
+#include "draw.h"
+#include <string.h>
+
+#define BPP 4
+
+#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) {
+  for (int i = 0; i < disp->size / BPP; i++) {
+    place_pixel_pos(0xFF00FF, i);
+  }
+}
+
+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);
+}