gfx.h

#pragma once

#include "common.h"
#include "track.h"

#define kDispWidth 0x140
#define kDispHeight 0x100
#define kDispDepth 3
#define kDispRowPadW 8 // padded for horizontal scrolling
#define kDispColPad 1  // ^-
#define kDispStride ((kDispWidth / kBitsPerByte) + (kDispRowPadW * kBytesPerWord))
#define kDispSlice (kDispStride * (kDispHeight + kDispColPad))
#define kDispHdrHeight 52
#define kFontWidth 5
#define kFontHeight 5
#define kFontSpacing (kFontWidth + 1)
#define kFontNGlyphs 0x60
#define kFarNearRatio 7
#define kFarZ 0xFFFF
#define kNearZ (kFarZ / kFarNearRatio)
#define kBlockGapDepth ((kFarZ - kNearZ + 1) / kNumVisibleSteps)
#define kLaneWidth 123

extern Status gfx_init();
extern void gfx_fini();
extern UBYTE* gfx_display_planes();
extern void gfx_setup_copperlist(BOOL for_menu);
extern void gfx_draw_text(STRPTR text,
                          UWORD max_chars,
                          UWORD left,
                          UWORD top,
                          UWORD color,
                          BOOL replace_bg);
extern void gfx_draw_logo();
extern void gfx_draw_title(STRPTR title);
extern void gfx_init_score();
extern void gfx_fade_menu(BOOL fade_in);
extern void gfx_fade_play(BOOL fade_in,
                          BOOL delay_fade);
extern void gfx_clear_body();
extern void gfx_draw_track();
extern void gfx_update_pointer(UWORD pointer_x,
                               UWORD pointer_y);
extern void gfx_update_display(TrackStep *step_near,
                               WORD ball_x,
                               ULONG camera_z,
                               UWORD camera_z_inc,
                               ULONG vu_meter_z,
                               UWORD score_frac);
extern void gfx_wait_vblank();
extern void gfx_wait_blit();
extern void gfx_allow_copper_blits(BOOL allow);