altos/draw: Add damage tracking

[fw/altos] / src / draw / ao_draw.h

diff --git a/src/draw/ao_draw.h b/src/draw/ao_draw.h
index b4ca6eacc64c106ac74cf1088da764150aa541b1..29afef9cb043fa3189c6c410ef4bac4e1ed6c325 100644 (file)
--- a/src/draw/ao_draw.h
+++ b/src/draw/ao_draw.h
@@ -18,12 +18,14 @@
 #include <stdint.h>
 #include <stdbool.h>
 #include "ao_font.h"
+#include "ao_box.h"
 
 struct ao_bitmap {
        uint32_t        *base;
        int16_t         stride; /* in units */
        int16_t         width;  /* in pixels */
        int16_t         height; /* in pixels */
+       struct ao_box   damage;
 };
 
 struct ao_coord {
@@ -81,6 +83,12 @@ ao_stride_bytes(int16_t width)
        return (int16_t) ((width + 7) >> 3);
 }
 
+static inline void
+ao_damage_set_empty(struct ao_bitmap *dst)
+{
+       ao_box_set_empty(&dst->damage);
+}
+
 struct ao_pattern {
        uint8_t         pattern[8];
 };
@@ -103,7 +111,7 @@ struct ao_font {
 };
 
 void
-ao_copy(const struct ao_bitmap *dst,
+ao_copy(struct ao_bitmap       *dst,
        int16_t                 dst_x,
        int16_t                 dst_y,
        int16_t                 width,
@@ -114,7 +122,7 @@ ao_copy(const struct ao_bitmap      *dst,
        uint8_t                 rop);
 
 void
-ao_rect(const struct ao_bitmap *dst,
+ao_rect(struct ao_bitmap       *dst,
        int16_t                 x,
        int16_t                 y,
        int16_t                 width,
@@ -123,7 +131,7 @@ ao_rect(const struct ao_bitmap      *dst,
        uint8_t                 rop);
 
 void
-ao_pattern(const struct ao_bitmap      *dst,
+ao_pattern(struct ao_bitmap            *dst,
           int16_t                      x,
           int16_t                      y,
           int16_t                      width,
@@ -134,7 +142,7 @@ ao_pattern(const struct ao_bitmap   *dst,
           uint8_t                      rop);
 
 void
-ao_line(const struct ao_bitmap *dst,
+ao_line(struct ao_bitmap       *dst,
        int16_t                 x1,
        int16_t                 y1,
        int16_t                 x2,
@@ -143,7 +151,7 @@ ao_line(const struct ao_bitmap      *dst,
        uint8_t                 rop);
 
 void
-ao_poly(const struct ao_bitmap         *dst,
+ao_poly(struct ao_bitmap               *dst,
        const struct ao_coord           *coords,
        uint16_t                        ncoords,
        const struct ao_transform       *transform,
@@ -151,7 +159,7 @@ ao_poly(const struct ao_bitmap              *dst,
        uint8_t                         rop);
 
 void
-ao_text(const struct ao_bitmap *dst,
+ao_text(struct ao_bitmap       *dst,
        const struct ao_font    *font,
        int16_t                 x,
        int16_t                 y,
@@ -160,7 +168,7 @@ ao_text(const struct ao_bitmap      *dst,
        uint8_t                 rop);
 
 void
-ao_logo(const struct ao_bitmap         *dst,
+ao_logo(struct ao_bitmap               *dst,
        const struct ao_transform       *transform,
        const struct ao_font            *font,
        uint32_t                        fill,