From 1c1e91bd8bf4e9d08cd4d8ee41568e3d25ee8256 Mon Sep 17 00:00:00 2001
From: "Juan J. Martinez" <jjm@usebox.net>
Date: Tue, 6 Jun 2023 22:58:48 +0100
Subject: First stab at the sw blitter

---
 src/vga.h | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

(limited to 'src/vga.h')

diff --git a/src/vga.h b/src/vga.h
index be90b29..ef183ca 100644
--- a/src/vga.h
+++ b/src/vga.h
@@ -1,7 +1,10 @@
 #ifndef _VGA_H
 #define _VGA_H
 
-uint8_t *open_framebuffer();
+/* palette index to be used as transparent color */
+#define TRANSPARENT 16
+
+uint8_t open_framebuffer();
 void close_framebuffer();
 
 void set_mode(uint8_t mode);
@@ -10,4 +13,8 @@ void wait_vsync();
 /* the palette is expected to be 8 bit per color, and will be converted to VGA's 6 bit per color */
 void set_palette(const uint8_t *palette);
 
+void blit(const uint8_t *src, uint16_t x, uint16_t y, uint16_t w, uint16_t h);
+void blit_erase(uint8_t c);
+void blit_update();
+
 #endif /* _VGA_H */
-- 
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