// license:BSD-3-Clause
// copyright-holders:Curt Coder
/**********************************************************************
SMC CRT9021 Video Attributes Controller (VAC) emulation
**********************************************************************
_____ _____
D0 1 |* \_/ | 28 D1
MS0 2 | | 27 D2
MS1 3 | | 26 D3
REVID 4 | | 25 D4
CHABL 5 | | 24 D5
BLINK 6 | | 23 D6
INTIN 7 | CRT9021 | 22 D7
+5V 8 | | 21 _VSYNC
ATTEN 9 | | 20 GND
INTOUT 10 | | 19 SL0/SLD
CURSOR 11 | | 18 SL1/_SLG
RETBL 12 | | 17 SL2/BLC
_LD/SH 13 | | 16 SL3/BKC
VIDEO 14 |_____________| 15 VDC
**********************************************************************/
#ifndef MAME_VIDEO_CRT9021_H
#define MAME_VIDEO_CRT9021_H
#pragma once
//**************************************************************************
// INTERFACE CONFIGURATION MACROS
//**************************************************************************
#define CRT9021_DRAW_CHARACTER_MEMBER(_name) void _name(bitmap_rgb32 &bitmap, int y, int x, uint8_t video, int intout)
//**************************************************************************
// TYPE DEFINITIONS
//**************************************************************************
// ======================> crt9021_device
class crt9021_device : public device_t, public device_video_interface
{
public:
typedef device_delegate<void (bitmap_rgb32 &bitmap, int y, int x, uint8_t video, int intout)> draw_character_delegate;
// construction/destruction
crt9021_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock);
template <typename... T> void set_display_callback(T &&... args) { m_display_cb.set(std::forward<T>(args)...); }
void write(uint8_t data) { m_data = data; }
DECLARE_WRITE8_MEMBER( write ) { write(data); }
DECLARE_WRITE_LINE_MEMBER( ms0_w ) { m_ms0 = state; }
DECLARE_WRITE_LINE_MEMBER( ms1_w ) { m_ms1 = state; }
DECLARE_WRITE_LINE_MEMBER( revid_w ) { m_revid = state; }
DECLARE_WRITE_LINE_MEMBER( chabl_w ) { m_chabl = state; }
DECLARE_WRITE_LINE_MEMBER( blink_w ) { m_blink = state; }
DECLARE_WRITE_LINE_MEMBER( intin_w ) { m_intin = state; }
DECLARE_WRITE_LINE_MEMBER( atten_w ) { m_atten = state; }
DECLARE_WRITE_LINE_MEMBER( cursor_w ) { m_cursor = state; }
DECLARE_WRITE_LINE_MEMBER( retbl_w ) { m_retbl = state; }
DECLARE_WRITE_LINE_MEMBER( ld_sh_w );
DECLARE_WRITE_LINE_MEMBER( sld_w ) { m_sld = state; }
DECLARE_WRITE_LINE_MEMBER( slg_w ) { m_slg = state; }
DECLARE_WRITE_LINE_MEMBER( blc_w ) { m_blc = state; }
DECLARE_WRITE_LINE_MEMBER( bkc_w ) { m_bkc = state; }
DECLARE_WRITE_LINE_MEMBER( sl0_w ) { m_sl0 = state; }
DECLARE_WRITE_LINE_MEMBER( sl1_w ) { m_sl1 = state; }
DECLARE_WRITE_LINE_MEMBER( sl2_w ) { m_sl2 = state; }
DECLARE_WRITE_LINE_MEMBER( sl3_w ) { m_sl3 = state; }
DECLARE_WRITE_LINE_MEMBER( vsync_w );
uint32_t screen_update(screen_device &screen, bitmap_rgb32 &bitmap, const rectangle &cliprect);
protected:
// device-level overrides
virtual void device_start() override;
private:
enum
{
MS_WIDE_GRAPHICS,
MS_CHARACTER,
MS_THIN_GRAPHICS,
MS_UNDERLINE
};
draw_character_delegate m_display_cb;
bitmap_rgb32 m_bitmap;
// inputs
uint8_t m_data;
int m_ms0;
int m_ms1;
int m_revid;
int m_chabl;
int m_blink;
int m_intin;
int m_atten;
int m_cursor;
int m_retbl;
int m_ld_sh;
int m_sld;
int m_slg;
int m_blc;
int m_bkc;
int m_sl0;
int m_sl1;
int m_sl2;
int m_sl3;
int m_vsync;
// outputs
uint8_t m_sr;
int m_intout;
int m_sl;
};
// device type definition
DECLARE_DEVICE_TYPE(CRT9021, crt9021_device)
#endif // MAME_VIDEO_CRT9021_H