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(*
$Id$
------------------------------------------------------------------------------
Header file for libgba video definitions
Copyright 2003-2006 by Dave Murphy.
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Library General Public
License as published by the Free Software Foundation; either
version 2 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Library General Public License for more details.
You should have received a copy of the GNU Library General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
USA.
Please report all bugs and problems through the bug tracker at
"http://sourceforge.net/tracker/?group_id=114505&atid=668551".
------------------------------------------------------------------------------
Conversion by Legolas (http://itaprogaming.free.fr) for freepascal compiler
(http://www.freepascal.org)
Copyright (C) 2006 Francesco Lombardi
Check http://sourceforge.net/projects/libndsfpc for updates
------------------------------------------------------------------------------
$Log$
*)
{$ifdef GBA_INTERFACE}
const
BG_COLORS : pu16 = pointer($05000000); // Background color table
BG_PALETTE : pu16 = pointer($05000000); // Background color table
OBJ_COLORS : pu16 = pointer($05000200); // Sprite color table
SPRITE_PALETTE : pu16 = pointer($05000200); // Sprite color table
REG_DISPCNT : pu16 = pointer(REG_BASE + $00);
type
LCDC_BITS = integer;
const
MODE_0 : LCDC_BITS = 0; (* BG Mode 0 *)
MODE_1 : LCDC_BITS = 1; (* BG Mode 1 *)
MODE_2 : LCDC_BITS = 2; (* BG Mode 2 *)
MODE_3 : LCDC_BITS = 3; (* BG Mode 3 *)
MODE_4 : LCDC_BITS = 4; (* BG Mode 4 *)
MODE_5 : LCDC_BITS = 5; (* BG Mode 5 *)
BACKBUFFER : LCDC_BITS = (1 shl 4); (* buffer display select *)
OBJ_1D_MAP : LCDC_BITS = (1 shl 6); (* sprite 1 dimensional mapping *)
LCDC_OFF : LCDC_BITS = (1 shl 7); (* LCDC OFF *)
BG0_ON : LCDC_BITS = (1 shl 8); (* enable background 0 *)
BG1_ON : LCDC_BITS = (1 shl 9); (* enable background 1 *)
BG2_ON : LCDC_BITS = (1 shl 10); (* enable background 2 *)
BG3_ON : LCDC_BITS = (1 shl 11); (* enable background 3 *)
OBJ_ON : LCDC_BITS = (1 shl 12); (* enable sprites *)
WIN0_ON : LCDC_BITS = (1 shl 13); (* enable window 0 *)
WIN1_ON : LCDC_BITS = (1 shl 14); (* enable window 1 *)
OBJ_WIN_ON : LCDC_BITS = (1 shl 15); (* enable obj window *)
BG0_ENABLE : LCDC_BITS = (1 shl 8); (* enable background 0 *)
BG1_ENABLE : LCDC_BITS = (1 shl 9); (* enable background 1 *)
BG2_ENABLE : LCDC_BITS = (1 shl 10); (* enable background 2 *)
BG3_ENABLE : LCDC_BITS = (1 shl 11); (* enable background 3 *)
OBJ_ENABLE : LCDC_BITS = (1 shl 12); (* enable sprites *)
WIN0_ENABLE : LCDC_BITS = (1 shl 13); (* enable window 0 *)
WIN1_ENABLE : LCDC_BITS = (1 shl 14); (* enable window 1 *)
OBJ_WIN_ENABLE : LCDC_BITS = (1 shl 15); (* enable obj window *)
BG_ALL_ON : LCDC_BITS = (1 shl 8) or (1 shl 9) or (1 shl 10) or (1 shl 11); (* All Backgrounds on. *)
BG_ALL_ENABLE : LCDC_BITS = (1 shl 8) or (1 shl 9) or (1 shl 10) or (1 shl 11); (* All Backgrounds enabled. *)
const
REG_DISPSTAT : pu16 = pointer(REG_BASE + $04);
//---------------------------------------------------------------------------------
// LCDC Interrupt bits
//---------------------------------------------------------------------------------
type
LCDC_IRQ = integer;
const
LCDC_VBL_FLAG : LCDC_IRQ = (1 shl 0);
LCDC_HBL_FLAG : LCDC_IRQ = (1 shl 1);
LCDC_VCNT_FLAG : LCDC_IRQ = (1 shl 2);
LCDC_VBL : LCDC_IRQ = (1 shl 3);
LCDC_HBL : LCDC_IRQ = (1 shl 4);
LCDC_VCNT : LCDC_IRQ = (1 shl 5);
function VCOUNT(m: integer): u32; inline;
const
REG_VCOUNT : pu16 = pointer(REG_BASE + $06);
BGCTRL : pu16 = pointer(REG_BASE + $08);
REG_BG0CNT : pu16 = pointer(REG_BASE + $08);
REG_BG1CNT : pu16 = pointer(REG_BASE + $0a);
REG_BG2CNT : pu16 = pointer(REG_BASE + $0c);
REG_BG3CNT : pu16 = pointer(REG_BASE + $0e);
type
bg_scroll = record
x: u16;
y: u16;
end;
Pbg_scroll = ^bg_scroll;
const
BG_OFFSET : pbg_scroll = pointer(REG_BASE + $10);
REG_BG0HOFS : pu16 = pointer(REG_BASE + $10); // BG 0 H Offset
REG_BG0VOFS : pu16 = pointer(REG_BASE + $12); // BG 0 V Offset
REG_BG1HOFS : pu16 = pointer(REG_BASE + $14); // BG 1 H Offset
REG_BG1VOFS : pu16 = pointer(REG_BASE + $16); // BG 1 V Offset
REG_BG2HOFS : pu16 = pointer(REG_BASE + $18); // BG 2 H Offset
REG_BG2VOFS : pu16 = pointer(REG_BASE + $1a); // BG 2 V Offset
REG_BG3HOFS : pu16 = pointer(REG_BASE + $1c); // BG 3 H Offset
REG_BG3VOFS : pu16 = pointer(REG_BASE + $1e); // BG 3 V Offset
REG_BG2PA : ps16 = pointer(REG_BASE + $20);
REG_BG2PB : ps16 = pointer(REG_BASE + $22);
REG_BG2PC : ps16 = pointer(REG_BASE + $24);
REG_BG2PD : ps16 = pointer(REG_BASE + $26);
REG_BG2X : ps32 = pointer(REG_BASE + $28);
REG_BG2Y : ps32 = pointer(REG_BASE + $2c);
REG_BG3PA : ps16 = pointer(REG_BASE + $30);
REG_BG3PB : ps16 = pointer(REG_BASE + $32);
REG_BG3PC : ps16 = pointer(REG_BASE + $34);
REG_BG3PD : ps16 = pointer(REG_BASE + $36);
REG_BG3X : ps32 = pointer(REG_BASE + $38);
REG_BG3Y : ps32 = pointer(REG_BASE + $3c);
function BG_SIZE(m: integer): integer; inline;
type
BG_CTRL_BITS = integer;
const
BG_MOSAIC : BG_CTRL_BITS = (1 shl 6); (* enable background mosaic *)
BG_16_COLOR : BG_CTRL_BITS = (0 shl 7); (* background uses 16 color tiles *)
BG_256_COLOR : BG_CTRL_BITS = (1 shl 7); (* background uses 256 color tiles *)
BG_WRAP : BG_CTRL_BITS = (1 shl 13); (* background wraps when scrolling *)
BG_SIZE_0 : BG_CTRL_BITS = (0 shl 14); (* Map Size 256x256 *)
BG_SIZE_1 : BG_CTRL_BITS = (1 shl 14); (* Map Size 512x256 *)
BG_SIZE_2 : BG_CTRL_BITS = (2 shl 14); (* Map Size 256x512 *)
BG_SIZE_3 : BG_CTRL_BITS = (3 shl 14); (* Map Size 512x512 *)
function CHAR_BASE(m: integer): integer; inline;
function BG_TILE_BASE(m: integer): integer; inline;
function CHAR_BASE_ADR(m: integer): pointer; inline;
function CHAR_BASE_BLOCK(m: integer): pointer; inline;
function MAP_BASE_ADR(m: integer): pointer; inline;
function SCREEN_BASE_BLOCK(m: integer): pointer; inline;
function SCREEN_BASE(m: integer): integer; inline;
function BG_MAP_BASE(m: integer): integer; inline;
//alternate names for char and screen base
function TILE_BASE(m: integer): integer; inline;
function TILE_BASE_ADR(m: integer): pointer; inline;
function MAP_BASE(m: integer): integer; inline;
function BG_PRIORITY(m: integer): integer; inline;
function CHAR_PALETTE(m: integer): integer; inline;
(*---------------------------------------------------------------------------------
CHAR_BASE_ADR() is the direct equivalent to old PATRAM(),
giving the base address of a chr bank.
These macros pinpoint the base address of a single tile.
---------------------------------------------------------------------------------*)
function PATRAM4(x, tn: integer): pu32; inline;
function PATRAM8(x, tn: integer): pu32; inline;
function SPR_VRAM(tn: integer): pu32; inline;
(*---------------------------------------------------------------------------------
MAP_BASE_ADR() only gives the beginning of a map.
Each cell of a text map can be accessed using 3D array notation:
MAP[page][y][x]
---------------------------------------------------------------------------------*)
type
NAMETABLE = array [0..31, 0..31] of u16;
PNAMETABLE = ^NAMETABLE;
const
MAP : PNAMETABLE = pointer($06000000);
(*---------------------------------------------------------------------------------
width and height of a GBA text map can (and probably should)
be controlled separately.
---------------------------------------------------------------------------------*)
const
BG_WID_32 = 0 shl 14;
BG_WID_64 = 1 shl 14;
BG_HT_32 = 0 shl 14;
BG_HT_64 = 2 shl 14;
//---------------------------------------------------------------------------------
// Symbolic names for the rot/scale map sizes
//---------------------------------------------------------------------------------
ROTBG_SIZE_16 = 0 shl 14;
ROTBG_SIZE_32 = 1 shl 14;
ROTBG_SIZE_64 = 2 shl 14;
ROTBG_SIZE_128 = 3 shl 14;
TEXTBG_SIZE_256x256 = 0 shl 14;
TEXTBG_SIZE_512x256 = 1 shl 14;
TEXTBG_SIZE_256x512 = 2 shl 14;
TEXTBG_SIZE_512x512 = 3 shl 14;
ROTBG_SIZE_128x128 = 0 shl 14;
ROTBG_SIZE_256x256 = 1 shl 14;
ROTBG_SIZE_512x512 = 2 shl 14;
ROTBG_SIZE_1024x1024 = 3 shl 14;
//---------------------------------------------------------------------------------
// Framebuffers for mode 3 and 5
//---------------------------------------------------------------------------------
type
MODE3_LINE = array [0..239] of u16;
PMODE3_LINE = ^MODE3_LINE;
MODE5_LINE = array [0..159] of u16;
PMODE5_LINE = ^MODE5_LINE;
const
MODE3_FB : PMODE3_LINE = pointer($06000000);
MODE5_FB : PMODE5_LINE = pointer($06000000);
MODE5_BB : PMODE5_LINE = pointer($0600A000);
REG_WIN0H : pu16 = pointer(REG_BASE + $40);
REG_WIN1H : pu16 = pointer(REG_BASE + $42);
REG_WIN0V : pu16 = pointer(REG_BASE + $44);
REG_WIN1V : pu16 = pointer(REG_BASE + $46);
REG_WININ : pu16 = pointer(REG_BASE + $48);
REG_WINOUT : pu16 = pointer(REG_BASE + $4A);
REG_MOSAIC : pu16 = pointer(REG_BASE + $4c);
REG_BLDCNT : pu16 = pointer(REG_BASE + $50);
REG_BLDALPHA : pu16 = pointer(REG_BASE + $52);
REG_BLDY : pu16 = pointer(REG_BASE + $54);
//---------------------------------------------------------------------------------
// Helper macros
//---------------------------------------------------------------------------------
procedure SetMode(mode: integer); inline;
function RGB5(const r, g, b: word): word;inline;
function RGB8(const r, g, b: word): word;inline;
const
SCREEN_WIDTH = 240;
SCREEN_HEIGHT = 160;
{$endif GBA_INTERFACE}
{$ifdef GBA_IMPLEMENTATION}
function VCOUNT(m: integer): u32; inline;
begin
VCOUNT := m shl 8;
end;
function BG_SIZE(m: integer): integer; inline;
begin
BG_SIZE := ((m shl 14));
end;
function CHAR_BASE(m: integer): integer; inline;
begin
CHAR_BASE := ((m) shl 2);
end;
function BG_TILE_BASE(m: integer): integer; inline;
begin
BG_TILE_BASE := ((m) shl 2);
end;
function CHAR_BASE_ADR(m: integer): pointer; inline;
begin
CHAR_BASE_ADR := pointer(VRAM + ((m) shl 14));
end;
function CHAR_BASE_BLOCK(m: integer): pointer; inline;
begin
CHAR_BASE_BLOCK := pointer(VRAM + ((m) shl 14));
end;
function MAP_BASE_ADR(m: integer): pointer; inline;
begin
MAP_BASE_ADR := pointer(VRAM + ((m) shl 11));
end;
function SCREEN_BASE_BLOCK(m: integer): pointer; inline;
begin
SCREEN_BASE_BLOCK := pointer(VRAM + ((m) shl 11));
end;
function SCREEN_BASE(m: integer): integer; inline;
begin
SCREEN_BASE := ((m) shl 8);
end;
function BG_MAP_BASE(m: integer): integer; inline;
begin
BG_MAP_BASE := ((m) shl 8);
end;
//alternate names for char and screen base
function TILE_BASE(m: integer): integer; inline;
begin
TILE_BASE := ((m) shl 2);
end;
function TILE_BASE_ADR(m: integer): pointer; inline;
begin
TILE_BASE_ADR := pointer(VRAM + ((m) shl 14));
end;
function MAP_BASE(m: integer): integer; inline;
begin
MAP_BASE := ((m) shl 8);
end;
function BG_PRIORITY(m: integer): integer; inline;
begin
BG_PRIORITY := (m);
end;
function CHAR_PALETTE(m: integer): integer; inline;
begin
CHAR_PALETTE := ((m) shl 12);
end;
(*---------------------------------------------------------------------------------
CHAR_BASE_ADR() is the direct equivalent to old PATRAM(),
giving the base address of a chr bank.
These macros pinpoint the base address of a single tile.
---------------------------------------------------------------------------------*)
function PATRAM4(x, tn: integer): pu32; inline;
begin
PATRAM4 := (pu32($6000000 or (((x) shl 14) + ((tn) shl 5)) ));
end;
function PATRAM8(x, tn: integer): pu32; inline;
begin
PATRAM8 := (pu32($6000000 or (((x) shl 14) + ((tn) shl 6)) ));
end;
function SPR_VRAM(tn: integer): pu32; inline;
begin
SPR_VRAM := (pu32(VRAM or $10000 or ((tn) shl 5)));
end;
procedure SetMode(mode: integer); inline;
begin
REG_DISPCNT^ := mode
end;
function RGB5(const r, g, b: word): word;inline;
begin
RGB5 := ((r) or ((g) shl 5) or ((b) shl 10));
end;
function RGB8(const r, g, b: word): word;inline;
begin
RGB8 := ( (((b) shr 3) shl 10) or (((g) shr 3) shl 5) or ((r) shr 3) );
end;
{$endif GBA_IMPLEMENTATION}
|
