diff options
Diffstat (limited to 'arm9/source/devices/screen.h')
| -rw-r--r-- | arm9/source/devices/screen.h | 100 |
1 files changed, 49 insertions, 51 deletions
diff --git a/arm9/source/devices/screen.h b/arm9/source/devices/screen.h index 1ff58e5..48411b7 100644 --- a/arm9/source/devices/screen.h +++ b/arm9/source/devices/screen.h @@ -1,70 +1,68 @@ #ifndef SCREEN_H_ #define SCREEN_H_ + #include "../bang.h" + + + // Dimension constants. #define PIXELS_WIDTH 256 #define PIXELS_HEIGHT 192 - #define PIXELS_SIZE 49152 + #define PIXELS_COUNT (PIXELS_WIDTH*PIXELS_HEIGHT) #define TILES_WIDTH 32 #define TILES_HEIGHT 24 - #define TILES_SIZE 768 - #define TILES_MEM 24576 // size of a screen layer in bytes + #define TILES_COUNT (TILES_WIDTH*TILES_HEIGHT) + #define LAYER_MEM (TILES_COUNT*32) - #define BG_SLOT_VIS 0 // tile base for visible background tiles - #define FG_SLOT_VIS 2 // tile base for visible foreground tiles - #define BG_SLOT 4 // tile base for background tiles - #define FG_SLOT 6 // tile base for foreground tiles - #define MAP_SLOT 12 // map base for tile map + // VRAM addresses. + #define BG_SLOT_FRONT 0 // Tile base for background tiles in the front buffer + #define FG_SLOT_FRONT 2 // Tile base for foreground tiles in the front buffer + #define BG_SLOT_BACK 4 // Tile base for background tiles in the back buffer + #define FG_SLOT_BACK 6 // Tile base for foreground tiles in the back buffer + #define MAP_SLOT 12 // Map base for tile map + // Sprite buffer for the screen device. typedef struct { - u8 mem[16]; // buffer memory - u8 p; // buffer pointer - u8 sprite[8][8]; // transformed sprite - bool cached; // true if sprite has been transformed - u8 draw; // the cached draw byte + u8 mem[16]; // Buffer memory + u8 p; // Buffer pointer + u8 sprite[8][8]; // Cached transformed sprite + u8 draw; // Cached draw byte + bool cached; // A transformed sprite has been cached } SpriteBuffer; + // Hardware screen on the NDS. typedef struct { - u16 *bgv, *fgv; // visible tile memory - u16 *bg, *fg; // buffered tile memory - u16 *map; // tile map (never changes) - u16 *palv; // visible colour palette - u16 pal[16]; // buffered colour palette - } Screen; + u16 *bgv, *fgv; // Visible tile memory (front buffer) + u16 *bg, *fg; // Buffered tile memory (back buffer) + u16 *map; // Tile map (never changes) + u16 *palv; // Visible colour palette (front buffer) + u16 pal[16]; // Buffered colour palette (back buffer) + } NDSScreen; + // Bedrock screen device. typedef struct { - u16 x,y; // cursor position - u16 px,py; // previous cursor position - u16 colours; // sprite colours - SpriteBuffer sprite; // sprite buffer - u16 palette_write; // palette write cache - u16 palette[16]; // palette as RGB15 colours - Screen *nds; // NDS VRAM pointers - bool wake; // wake flag - bool dirty; // dirty flag + u16 x,y; // Current cursor position + u16 px,py; // Previous cursor position + u16 selected; // Selected sprite colours + SpriteBuffer sprite; // Sprite buffer + u16 colour; // Palette colour write cache + u16 pal[16]; // Palette as RGB15 colours + NDSScreen *nds; // Pointer to hardware screen to draw to. + bool wake; // Wake flag + bool dirty; // Dirty flag } ScreenDevice; - void init_screens(void); - void scr_make_main(ScreenDevice *scr); - void scr_make_sub(ScreenDevice *scr); - void scr_unmake(ScreenDevice *scr); - - void set_palette_high(ScreenDevice *scr, u8 high); - void set_palette_low(ScreenDevice *scr, u8 low); - void draw_pixel(u16 *layer, u16 x, u16 y, u8 colour); - void fill_layer(u16 *layer, u8 colour); - void erase_screen(Screen *nds); - void flip_buffer(Screen *nds); - void black_screen(Screen *nds); - - void scr_draw_pixel( ScreenDevice *scr, u16 *layer, u8 draw); - void scr_draw_sprite(ScreenDevice *scr, u16 *layer, u8 draw); - void scr_fill_layer( ScreenDevice *scr, u16 *layer, u8 draw); - void scr_draw_line( ScreenDevice *scr, u16 *layer, u8 draw); - void scr_draw_rect( ScreenDevice *scr, u16 *layer, u8 draw); - - void draw_dispatch(ScreenDevice *scr, u8 draw); - void move_cursor(ScreenDevice *scr, u8 move); - - void push_sprite(SpriteBuffer *b, u8 row); + // Functions. + void init_nds_screens(void); + // Methods. + void screen_reset(ScreenDevice *screen); + void ndsscreen_flip_buffers(NDSScreen *nds); + void ndsscreen_clear(NDSScreen *nds); + void spritebuf_push(SpriteBuffer *b, u8 row); + void screen_map_to_none(ScreenDevice *screen); + void screen_map_to_main(ScreenDevice *screen); + void screen_map_to_sub(ScreenDevice *screen); + void screen_commit_colour(ScreenDevice *screen); + void screen_move_cursor(ScreenDevice *screen, u8 move); + void screen_draw(ScreenDevice *screen, u8 draw); #endif |