user/lib: shared libdraw for framebuffer handling

1 files changed, 19 insertions, 0 deletions

diff --git a/src/user/lib/draw/draw.h b/src/user/lib/draw/draw.h
new file mode 100644
index 0000000..ba15840
--- /dev/null
+++ b/src/user/lib/draw/draw.h
@@ -0,0 +1,19 @@
+#pragma once
+#include <camellia/types.h>
+#include <stddef.h>
+#include <stdint.h>
+
+struct framebuf {
+	size_t len, width, height, pitch;
+	uint8_t bpp;
+	char *b;
+
+	handle_t fd;
+};
+
+struct rect { uint32_t x1, y1, x2, y2; };
+void dirty_reset(struct rect *d);
+void dirty_mark(struct rect *d, uint32_t x, uint32_t y);
+void dirty_flush(struct rect *d, struct framebuf *fb);
+
+int fb_setup(struct framebuf *fb, const char *base);