1 files changed, 57 insertions, 0 deletions
diff --git a/tools/src/fb.h b/tools/src/fb.h
new file mode 100644
index 0000000..2bfd406
--- /dev/null
+++ b/tools/src/fb.h
@@ -0,0 +1,57 @@
+/* SPDX-License-Identifier: MIT */
+
+#ifndef FB_H
+#define FB_H
+
+#include "types.h"
+
+#define FB_DEPTH_FLAG_RETINA 0x10000
+
+typedef struct {
+    u32 *ptr;   /* pointer to the start of the framebuffer */
+    u32 *hwptr; /* pointer to the start of the real framebuffer */
+    u32 stride; /* framebuffer stride divided by four (i.e. stride in pixels) */
+    u32 depth;  /* framebuffer depth (i.e. bits per pixel) */
+    u32 width;  /* width of the framebuffer in pixels */
+    u32 height; /* height of the framebuffer in pixels */
+    u32 size;   /* size of the framebuffer in bytes */
+} fb_t;
+
+typedef struct {
+    u8 r;
+    u8 g;
+    u8 b;
+} rgb_t;
+
+typedef enum {
+    PIX_FMT_XRGB,
+    PIX_FMT_XBGR,
+} pix_fmt_t;
+
+extern fb_t fb;
+
+static inline rgb_t int2rgb(u32 c)
+{
+    return (rgb_t){c >> 16, c >> 8, c};
+}
+
+void fb_init(bool clear);
+void fb_shutdown(bool restore_logo);
+void fb_reinit(void);
+void fb_update(void);
+void fb_set_active(bool active);
+
+void fb_blit(u32 x, u32 y, u32 w, u32 h, void *data, u32 stride, pix_fmt_t format);
+void fb_unblit(u32 x, u32 y, u32 w, u32 h, void *data, u32 stride);
+void fb_fill(u32 x, u32 y, u32 w, u32 h, rgb_t color);
+void fb_clear(rgb_t color);
+
+void fb_display_logo(void);
+void fb_restore_logo(void);
+void fb_improve_logo(void);
+
+void fb_console_scroll(u32 n);
+void fb_console_reserve_lines(u32 n);
+ssize_t fb_console_write(const char *bfr, size_t len);
+
+#endif