From 1d69a46f5d9823bbf2e6211ca367b409d2d5f7a7 Mon Sep 17 00:00:00 2001
From: Benji Dial <benji6283@gmail.com>
Date: Mon, 1 Mar 2021 22:35:26 -0500
Subject: minimal file writing, shutdown keybinding (Win+Shift+Q)

---
 src/kernel/window.c | 54 +++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 54 insertions(+)

(limited to 'src/kernel/window.c')

diff --git a/src/kernel/window.c b/src/kernel/window.c
index 79d718e..1c4eb26 100644
--- a/src/kernel/window.c
+++ b/src/kernel/window.c
@@ -82,6 +82,60 @@ static void blit() {
   }
 }
 
+#define POWER_OFF_MESSAGE_PITCH 45
+#define POWER_OFF_MESSAGE_ROWS  28
+static const bool power_off_message[] = {
+  1,0,0,0,1,0,0,0,1,1,1,0,0,0,1,0,0,0,1,0,0,0,0,0,0,0,1,0,0,0,1,0,0,0,1,1,1,0,0,0,1,0,0,0,1,
+  1,0,0,0,1,0,0,1,0,0,0,1,0,0,1,0,0,0,1,0,0,0,0,0,0,0,1,0,0,0,1,0,0,1,0,0,0,1,0,0,1,0,0,0,1,
+  0,1,0,1,0,0,0,1,0,0,0,1,0,0,1,0,0,0,1,0,0,0,0,0,0,0,1,1,0,1,1,0,0,1,0,0,0,1,0,0,0,1,0,1,0,
+  0,1,0,1,0,0,0,1,0,0,0,1,0,0,1,0,0,0,1,0,0,0,0,0,0,0,1,0,1,0,1,0,0,1,1,1,1,1,0,0,0,1,0,1,0,
+  0,0,1,0,0,0,0,1,0,0,0,1,0,0,1,0,0,0,1,0,0,0,0,0,0,0,1,0,0,0,1,0,0,1,0,0,0,1,0,0,0,0,1,0,0,
+  0,0,1,0,0,0,0,1,0,0,0,1,0,0,1,0,0,0,1,0,0,0,0,0,0,0,1,0,0,0,1,0,0,1,0,0,0,1,0,0,0,0,1,0,0,
+  0,0,1,0,0,0,0,1,0,0,0,1,0,0,1,0,0,0,1,0,0,0,0,0,0,0,1,0,0,0,1,0,0,1,0,0,0,1,0,0,0,0,1,0,0,
+  0,0,1,0,0,0,0,0,1,1,1,0,0,0,0,1,1,1,0,0,0,0,0,0,0,0,1,0,0,0,1,0,0,1,0,0,0,1,0,0,0,0,1,0,0,
+  0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
+  0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
+  0,0,0,0,0,0,1,1,1,1,0,0,0,0,1,1,1,0,0,0,1,0,0,0,1,0,0,1,1,1,1,1,0,0,1,1,1,1,0,0,0,0,0,0,0,
+  0,0,0,0,0,0,1,0,0,0,1,0,0,1,0,0,0,1,0,0,1,0,0,0,1,0,0,1,0,0,0,0,0,0,1,0,0,0,1,0,0,0,0,0,0,
+  0,0,0,0,0,0,1,0,0,0,1,0,0,1,0,0,0,1,0,0,1,0,0,0,1,0,0,1,0,0,0,0,0,0,1,0,0,0,1,0,0,0,0,0,0,
+  0,0,0,0,0,0,1,1,1,1,0,0,0,1,0,0,0,1,0,0,1,0,0,0,1,0,0,1,1,1,1,0,0,0,1,1,1,1,0,0,0,0,0,0,0,
+  0,0,0,0,0,0,1,0,0,0,0,0,0,1,0,0,0,1,0,0,1,0,1,0,1,0,0,1,0,0,0,0,0,0,1,0,0,1,0,0,0,0,0,0,0,
+  0,0,0,0,0,0,1,0,0,0,0,0,0,1,0,0,0,1,0,0,1,1,0,1,1,0,0,1,0,0,0,0,0,0,1,0,0,1,0,0,0,0,0,0,0,
+  0,0,0,0,0,0,1,0,0,0,0,0,0,1,0,0,0,1,0,0,1,0,0,0,1,0,0,1,0,0,0,0,0,0,1,0,0,0,1,0,0,0,0,0,0,
+  0,0,0,0,0,0,1,0,0,0,0,0,0,0,1,1,1,0,0,0,1,0,0,0,1,0,0,1,1,1,1,1,0,0,1,0,0,0,1,0,0,0,0,0,0,
+  0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
+  0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
+  0,0,0,0,0,0,0,0,0,0,0,0,0,0,1,1,1,0,0,0,1,1,1,1,1,0,0,1,1,1,1,1,0,0,0,0,0,0,0,0,0,0,0,0,0,
+  0,0,0,0,0,0,0,0,0,0,0,0,0,1,0,0,0,1,0,0,1,0,0,0,0,0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
+  0,0,0,0,0,0,0,0,0,0,0,0,0,1,0,0,0,1,0,0,1,0,0,0,0,0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
+  0,0,0,0,0,0,0,0,0,0,0,0,0,1,0,0,0,1,0,0,1,1,1,1,0,0,0,1,1,1,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
+  0,0,0,0,0,0,0,0,0,0,0,0,0,1,0,0,0,1,0,0,1,0,0,0,0,0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
+  0,0,0,0,0,0,0,0,0,0,0,0,0,1,0,0,0,1,0,0,1,0,0,0,0,0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
+  0,0,0,0,0,0,0,0,0,0,0,0,0,1,0,0,0,1,0,0,1,0,0,0,0,0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
+  0,0,0,0,0,0,0,0,0,0,0,0,0,0,1,1,1,0,0,0,1,0,0,0,0,0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
+};
+
+#define POWER_OFF_SCALE 3
+
+void show_shutdown() {
+  for (uint32_t i = 0; i < VBE_MODE_INFO->height * VBE_MODE_INFO->width; ++i)
+    buffer[i] = (struct pixel){.r = 0, .g = 0, .b = 0};
+
+  const uint16_t x_pad = (VBE_MODE_INFO->width  - POWER_OFF_MESSAGE_PITCH * POWER_OFF_SCALE) / 2;
+  const uint16_t y_pad = (VBE_MODE_INFO->height - POWER_OFF_MESSAGE_ROWS  * POWER_OFF_SCALE) / 2;
+
+  for (uint8_t r = 0; r < POWER_OFF_MESSAGE_ROWS; ++r)
+    for (uint8_t i = 0; i < POWER_OFF_MESSAGE_PITCH; ++i)
+      if (power_off_message[r * POWER_OFF_MESSAGE_PITCH + i]) {
+        const uint32_t o = x_pad + i * POWER_OFF_SCALE + (y_pad + r * POWER_OFF_SCALE) * VBE_MODE_INFO->width;
+        for (uint8_t y = 0; y < POWER_OFF_SCALE; ++y)
+          for (uint8_t x = 0; x < POWER_OFF_SCALE; ++x)
+            buffer[o + x + y * VBE_MODE_INFO->width] = (struct pixel){.r = 255, .g = 255, .b = 255};
+      }
+
+  blit();
+}
+
 static inline void draw_hz_line(uint16_t y, uint16_t xs, uint16_t xm, struct pixel color) {
   if (y >= VBE_MODE_INFO->height)
     return;
-- 
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