fb: modularized

src/fb.h

@@ -0,0 +1,53 @@
+#ifndef __FB_H__
+#define __FB_H__
+
+#include <stdint.h>
+#include <stdlib.h>
+
+enum ANIMATION_MODES {
+	LEFT = 0,
+	RIGHT,
+	UP,
+	DOWN,
+	FIXED,
+	SNOWFLAKE,
+	PICTURE,
+	ANIMATION,
+	LASER,
+};
+
+typedef struct fb_st {
+	uint16_t   *buf;
+	uint16_t    width;
+	uint8_t     modes;
+	int         is_flash;
+	int         is_marquee;
+	// TODO: feat: Brightness for each fb
+	int         brightness;
+	// TODO: feat: Timeout for each fb to switch to next fb
+	uint32_t    timeout; // zero mean no timeout
+	uint16_t    scroll;
+
+	struct fb_st *next;
+	struct fb_st *prev;
+} fb_t;
+
+fb_t *fb_new(uint16_t width);
+static inline void fb_free(fb_t *fb) 
+{
+	free((fb)->buf);
+	free((fb));
+}
+
+fb_t *fblist_insert(fb_t *at, fb_t *new);
+fb_t *fblist_append(fb_t *new);
+fb_t *fblist_drop(fb_t *fb);
+
+fb_t *fblist_gonext();
+fb_t *fblist_goprev() ;
+fb_t *fblist_gohead();
+fb_t *fblist_currentfb();
+
+void fblist_init(uint16_t first_fb_width);
+
+#endif /* __FB_H__ */