// license:BSD-3-Clause
// copyright-holders:Luca Elia
/***************************************************************************
-= Run Deep / The Deep =-
driver by Luca Elia (l.elia@tin.it)
[ 1 Horizontally Scrolling Layer ]
Size : 512 x 512
Tiles: 16 x 16 x 4.
In addition to a global x & y scroll register each tile-wide column
has its own y scroll register.
[ 1 Fixed Layer ]
Size : 256 x 256
Tiles: 8 x 8 x 2.
[ 128? sprites ]
Sprites tiles are 16 x 16 x 4. Each sprite has a height and width
specified (1,2,4, or 8 tiles).
A sprite of width N uses N consecutive sprites: the first one specifies
all the data (position,flip), the following ones only the tile code and
color for that column (tile codes in each column are consecutive).
***************************************************************************/
#include "emu.h"
#include "includes/thedeep.h"
/***************************************************************************
Callbacks for the TileMap code
***************************************************************************/
TILE_GET_INFO_MEMBER(thedeep_state::get_tile_info)
{
uint8_t code = m_textram[ tile_index * 2 + 0 ];
uint8_t color = m_textram[ tile_index * 2 + 1 ];
SET_TILE_INFO_MEMBER(2,
code + (color << 8),
(color & 0xf0) >> 4,
0);
}
WRITE8_MEMBER(thedeep_state::textram_w)
{
m_textram[offset] = data;
m_text_tilemap->mark_tile_dirty(offset / 2);
}
/***************************************************************************
Palette Init
***************************************************************************/
void thedeep_state::thedeep_palette(palette_device &palette) const
{
uint8_t const *const color_prom = memregion("proms")->base();
for (int i = 0; i < 512; i++)
palette.set_pen_color(i, pal4bit(color_prom[0x400 + i] >> 0), pal4bit(color_prom[0x400 + i] >> 4), pal4bit(color_prom[0x200 + i] >> 0));
}
/***************************************************************************
Video Init
***************************************************************************/
void thedeep_state::video_start()
{
m_text_tilemap = &machine().tilemap().create(*m_gfxdecode, tilemap_get_info_delegate(*this, FUNC(thedeep_state::get_tile_info)), TILEMAP_SCAN_ROWS, 8, 8, 0x20, 0x20);
m_text_tilemap->set_transparent_pen(0);
}
/***************************************************************************
Screen Drawing
***************************************************************************/
uint32_t thedeep_state::screen_update(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect)
{
bitmap.fill(m_palette->black_pen(), cliprect);
m_tilegen->deco_bac06_pf_draw(screen, bitmap, cliprect, TILEMAP_DRAW_OPAQUE, 0x00, 0x00, 0x00, 0x00, 0);
m_spritegen->draw_sprites(screen, bitmap, cliprect, m_gfxdecode->gfx(0), reinterpret_cast<uint16_t *>(m_spriteram.target()), 0x400/2);
m_text_tilemap->draw(screen, bitmap, cliprect, 0,0);
return 0;
}