Add animations (#15)

* animation: add xbm animations

* refactor: correct framebuffer terminology

* animation: add animations and effect

* animation: timing with TMOS scheduler

1 files changed, 41 insertions, 0 deletions

diff --git a/src/bmlist.h b/src/bmlist.h
new file mode 100644
index 0000000..1a7cf1a
--- /dev/null
+++ b/src/bmlist.h
@@ -0,0 +1,41 @@
+#ifndef __BMLIST_H__
+#define __BMLIST_H__
+
+#include <stdint.h>
+#include <stdlib.h>
+
+typedef struct bm_st {
+	uint16_t   *buf;
+	uint16_t    width;
+	uint8_t     modes;
+	int         is_flash;
+	int         is_marquee;
+	// TODO: feat: Brightness for each bm
+	int         brightness;
+	// TODO: feat: Timeout for each bm to switch to next bm
+	uint32_t    timeout; // zero mean no timeout
+	uint32_t    anim_step; // Animation step, zero means restart animation
+
+	struct bm_st *next;
+	struct bm_st *prev;
+} bm_t;
+
+bm_t *bm_new(uint16_t width);
+static inline void bm_free(bm_t *bm) 
+{
+	free(bm->buf);
+	free(bm);
+}
+
+bm_t *bmlist_insert(bm_t *at, bm_t *new);
+bm_t *bmlist_append(bm_t *new);
+bm_t *bmlist_drop(bm_t *bm);
+
+bm_t *bmlist_gonext();
+bm_t *bmlist_goprev() ;
+bm_t *bmlist_gohead();
+bm_t *bmlist_current();
+
+void bmlist_init(uint16_t first_bm_width);
+
+#endif /* __BMLIST_H__ */