Add Framebuffer object

src/hulk/hulk.d

@@ -5,9 +5,12 @@ module hulk.hulk;
 
 import hulk.header;
 import hulk.bootinfo;
+import hulk.framebuffer;
 import hos.memory;
 import ldc.attributes;
 
+private __gshared Framebuffer fb;
+
 extern extern(C) __gshared ubyte _hulk_total_size;
 
 @(ldc.attributes.section(".hulk_header"))
@@ -23,9 +26,12 @@ private __gshared Header hulk_header = {
  */
 extern(C) void hulk_start(ulong rdi, ulong rsi, ulong rdx, BootInfo * bootinfo)
 {
+    fb.initialize(bootinfo.fb.buffer, bootinfo.fb.width, bootinfo.fb.height, bootinfo.fb.stride);
+    fb.clear(0xFF8800u);
+
     for (size_t y = 100u; y < 120u; y++)
     {
-        memset32(&bootinfo.fb.buffer[y * bootinfo.fb.stride + 20u], 0xFF8800u, 20u);
+        memset32(&bootinfo.fb.buffer[y * bootinfo.fb.stride + 20u], 0x001199u, 20u);
     }
 
     for (;;)