Set tighter qualifiers for pointer parameters

This should prevent warnings when using source data from ROM.

3 files changed, 12 insertions, 12 deletions

diff --git a/include/mplayer.h b/include/mplayer.h
index 8d36516..12bdc5e 100644
--- a/include/mplayer.h
+++ b/include/mplayer.h
@@ -56,7 +56,7 @@
  * See [exporting songs and effects](#exporting-songs-and-effects) for details
  * on how to add songs to your project.
  */
-void mplayer_init(uint8_t *song, uint8_t sub_song);
+void mplayer_init(const uint8_t *song, uint8_t sub_song);
 
 /**
  * Inits the effects table.
@@ -77,7 +77,7 @@ void mplayer_init(uint8_t *song, uint8_t sub_song);
  * See [exporting songs and effects](#exporting-songs-and-effects) for details
  * on how to add effects to your project.
  */
-void mplayer_init_effects(uint8_t *effects) __z88dk_fastcall;
+void mplayer_init_effects(const uint8_t *effects) __z88dk_fastcall;
 
 // @Playback
 
diff --git a/include/spman.h b/include/spman.h
index d31dc3e..2a5db45 100644
--- a/include/spman.h
+++ b/include/spman.h
@@ -77,7 +77,7 @@ void spman_init();
  * A `type` can't be reused with a different pattern, [spman_init](#spman_init)
  * has to be called again to free all the patterns.
  */
-uint8_t spman_alloc_pat(uint8_t type, uint8_t *data, uint8_t len, uint8_t flip);
+uint8_t spman_alloc_pat(uint8_t type, const uint8_t *data, uint8_t len, uint8_t flip);
 
 // @Sprite allocation
 
@@ -97,7 +97,7 @@ uint8_t spman_alloc_pat(uint8_t type, uint8_t *data, uint8_t len, uint8_t flip);
  * Allocated sprites are shown on screen by calling to
  * [spman_update](#spman_update).
  */
-void spman_alloc_fixed_sprite(struct sprite_attr *sp);
+void spman_alloc_fixed_sprite(const struct sprite_attr *sp);
 
 /**
  * Allocates a sprite described by `sp` to be shown on the screen on the next
@@ -114,7 +114,7 @@ void spman_alloc_fixed_sprite(struct sprite_attr *sp);
  * Allocated sprites are shown on screen by calling to
  * [spman_update](#spman_update).
  */
-void spman_alloc_sprite(struct sprite_attr *sp);
+void spman_alloc_sprite(const struct sprite_attr *sp);
 
 /**
  * Any allocated sprite will be freed.
diff --git a/include/ubox.h b/include/ubox.h
index b66c76e..842f2f4 100644
--- a/include/ubox.h
+++ b/include/ubox.h
@@ -193,7 +193,7 @@ uint8_t ubox_get_vsync_freq();
  * All the tiles functions use an index in this tile set (usually via a `tile`
  * parameter).
  */
-void ubox_set_tiles(uint8_t *tiles) __z88dk_fastcall;
+void ubox_set_tiles(const uint8_t *tiles) __z88dk_fastcall;
 
 /**
  * Sets the current color table for current tile set to the color table pointed
@@ -203,7 +203,7 @@ void ubox_set_tiles(uint8_t *tiles) __z88dk_fastcall;
  * of the tiles table (8 rows, 8 bytes per tile). The colors will be loaded into
  * the VDP in all three screen sections.
  */
-void ubox_set_tiles_colors(uint8_t *colors) __z88dk_fastcall;
+void ubox_set_tiles_colors(const uint8_t *colors) __z88dk_fastcall;
 
 /**
  * Puts a tile from current tile set on the screen. The tile is identified by
@@ -409,7 +409,7 @@ struct sprite_attr {
  *
  * See [ubox_set_sprite_pat16](#ubox_set_sprite_pat16) to set a 16x16 pixels pattern.
  */
-void ubox_set_sprite_pat8(uint8_t *data, uint8_t pattern);
+void ubox_set_sprite_pat8(const uint8_t *data, uint8_t pattern);
 
 /**
  * Sets the sprite pattern data pointed by `data` into pattern number
@@ -422,7 +422,7 @@ void ubox_set_sprite_pat8(uint8_t *data, uint8_t pattern);
  * See [ubox_set_sprite_pat16_flip](#ubox_set_sprite_pat16_flip) to set a 16x16
  * pixels pattern.
  */
-void ubox_set_sprite_pat8_flip(uint8_t *data, uint8_t pattern);
+void ubox_set_sprite_pat8_flip(const uint8_t *data, uint8_t pattern);
 
 /**
  * Sets the sprite attributes of sprite number `sprite` using the attributes
@@ -442,7 +442,7 @@ void ubox_set_sprite_pat8_flip(uint8_t *data, uint8_t pattern);
  * table, it is recommended to use [ubox_write_vm](#ubox_write_vm). The sprite
  * attribute table is in the memory address `0x1b00`.
  */
-void ubox_set_sprite_attr(struct sprite_attr *attr, uint8_t sprite);
+void ubox_set_sprite_attr(const struct sprite_attr *attr, uint8_t sprite);
 
 /**
  * Sets the sprite pattern data pointed by `data` into pattern number
@@ -455,7 +455,7 @@ void ubox_set_sprite_attr(struct sprite_attr *attr, uint8_t sprite);
  *
  * See [ubox_set_sprite_pat8](#ubox_set_sprite_pat8) to set a 8x8 pixels pattern.
  */
-void ubox_set_sprite_pat16(uint8_t *data, uint8_t pattern);
+void ubox_set_sprite_pat16(const uint8_t *data, uint8_t pattern);
 
 /**
  * Sets the sprite pattern data pointed by `data` into pattern number
@@ -469,7 +469,7 @@ void ubox_set_sprite_pat16(uint8_t *data, uint8_t pattern);
  * See [ubox_set_sprite_pat8_flip](#ubox_set_sprite_pat8_flip) to set a 8x8
  * pixels pattern.
  */
-void ubox_set_sprite_pat16_flip(uint8_t *data, uint8_t pattern);
+void ubox_set_sprite_pat16_flip(const uint8_t *data, uint8_t pattern);
 
 // @Control functions
 //