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// license:BSD-3-Clause
// copyright-holders:Luca Elia
/***************************************************************************
ms1_tmap.h
8x8/16x16 tilemap generator for Jaleco's Mega System 1 and driving
and mahjong games from the same period.
***************************************************************************/
#ifndef MAME_VIDEO_MS1_TMAP_H
#define MAME_VIDEO_MS1_TMAP_H
#pragma once
#include "tilemap.h"
//**************************************************************************
// TYPE DEFINITIONS
//**************************************************************************
// ======================> megasys1_tilemap_device
class megasys1_tilemap_device : public device_t, public device_gfx_interface
{
public:
// construction/destruction
template <typename T>
megasys1_tilemap_device(const machine_config &mconfig, const char *tag, device_t *owner, T &&palette_tag, uint16_t colorbase)
: megasys1_tilemap_device(mconfig, tag, owner, (uint32_t)0)
{
set_palette(std::forward<T>(palette_tag));
set_colorbase(colorbase);
}
megasys1_tilemap_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock);
// configuration
void set_8x8_scroll_factor(int scroll_factor) { m_8x8_scroll_factor = scroll_factor; }
void set_16x16_scroll_factor(int scroll_factor) { m_16x16_scroll_factor = scroll_factor; }
void set_bits_per_color_code(int bits) { m_bits_per_color_code = bits; }
void set_colorbase(uint16_t colorbase) { m_colorbase = colorbase; }
// memory handlers
DECLARE_WRITE16_MEMBER(write);
DECLARE_READ16_MEMBER(scroll_r);
DECLARE_WRITE16_MEMBER(scroll_w);
// drawing and layer control
void draw(screen_device &screen, bitmap_ind16 &dest, const rectangle &cliprect, uint32_t flags, uint8_t priority = 0, uint8_t priority_mask = 0xff);
void enable(bool enable);
void set_flip(uint32_t attributes);
void set_tilebank(uint8_t bank);
protected:
// device-level overrides
virtual void device_start() override;
virtual void device_reset() override;
virtual void device_post_load() override;
private:
// shared memory finder
required_shared_ptr<uint16_t> m_scrollram;
// configuration
int m_8x8_scroll_factor;
int m_16x16_scroll_factor;
int m_bits_per_color_code;
uint16_t m_colorbase;
// decoding info
DECLARE_GFXDECODE_MEMBER(gfxinfo);
// internal state
uint16_t m_scrollx;
uint16_t m_scrolly;
uint16_t m_scroll_flag;
uint16_t m_tile_bank;
tilemap_t *m_tmap;
tilemap_t *m_tilemap[2][4];
// helpers
TILEMAP_MAPPER_MEMBER(scan_8x8);
TILEMAP_MAPPER_MEMBER(scan_16x16);
TILE_GET_INFO_MEMBER(get_scroll_tile_info_8x8);
TILE_GET_INFO_MEMBER(get_scroll_tile_info_16x16);
};
// device type definition
DECLARE_DEVICE_TYPE(MEGASYS1_TILEMAP, megasys1_tilemap_device)
#endif // MAME_VIDEO_MS1_TMAP_H
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