pngpal tool and first stab at embedding data on the EXE

WIP; the embedded data has an "environ" symbol that will cause issues
when we embed more than one piece of data.

1 files changed, 8 insertions, 0 deletions

diff --git a/src/vga.c b/src/vga.c
index 5badd82..b3ee0a2 100644
--- a/src/vga.c
+++ b/src/vga.c
@@ -2,6 +2,7 @@
 #include <stdint.h>
 #include <dpmi.h>
 #include <sys/nearptr.h>
+#include <pc.h>
 
 uint8_t *open_framebuffer()
 {
@@ -22,3 +23,10 @@ void set_mode(uint8_t mode)
     regs.x.ax = mode;
     __dpmi_int(0x10, &regs);
 }
+
+void set_palette(const uint8_t *palette)
+{
+    outportb(0x3c8, 0);
+    for (int i = 0; i < 768; i++)
+        outportb(0x3c9, (palette[i] * 63) / 255);
+}