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intchess: add screen

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This commit is contained in:
hap 2020-07-15 22:48:07 +02:00
parent ddd5408ffe
commit 76101dea1d
1 changed files with 76 additions and 4 deletions
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80
src/mame/drivers/saitek_intchess.cpp
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@ -25,6 +25,7 @@ TODO: WIP
#include "sound/volt_reg.h"
#include "video/pwm.h"
#include "emupal.h"
#include "screen.h"
#include "speaker.h"
@ -43,7 +44,10 @@ public:
m_encoder(*this, "encoder"),
m_display(*this, "display"),
m_dac(*this, "dac"),
m_vram(*this, "vram")
m_vram(*this, "vram"),
m_gfxdecode(*this, "gfxdecode"),
m_screen(*this, "screen"),
m_palette(*this, "palette")
{ }
void intchess(machine_config &config);
@ -59,6 +63,9 @@ private:
required_device<pwm_display_device> m_display;
required_device<dac_bit_interface> m_dac;
required_shared_ptr<u8> m_vram;
required_device<gfxdecode_device> m_gfxdecode;
required_device<screen_device> m_screen;
required_device<palette_device> m_palette;
// address maps
void main_map(address_map &map);
@ -70,6 +77,9 @@ private:
void control_w(u8 data);
u8 control_r();
void init_palette(palette_device &palette) const;
u32 screen_update(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect);
u8 m_select = 0;
u8 m_7seg_data = 0;
};
@ -84,14 +94,54 @@ void intchess_state::machine_start()
/******************************************************************************
I/O
Video
******************************************************************************/
void intchess_state::init_palette(palette_device &palette) const
{
palette.set_pen_color(0, 0xa0, 0xb0, 0xff);
palette.set_pen_color(1, 0x00, 0x00, 0x00);
palette.set_pen_color(2, 0x50, 0x80, 0x20);
palette.set_pen_color(3, 0xff, 0xff, 0xff);
}
u32 intchess_state::screen_update(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect)
{
// draw chessboard
for (int y = cliprect.top(); y <= cliprect.bottom(); y++)
for (int x = cliprect.left(); x <= cliprect.right(); x++)
bitmap.pix16(y, x) = ((x / 20) ^ (y / 16)) << 1 & 2;
// draw the pieces
for (int i = 0; i < 64; i++)
{
int code = (m_vram[i] & 7) << 2;
int color = m_vram[i] >> 3 & 1;
int x = (i % 8) * 20 + 2;
int y = (i / 8) * 16;
m_gfxdecode->gfx(0)->transpen(bitmap, cliprect, code+0, color, 0, 0, x+8, y, 0);
m_gfxdecode->gfx(0)->transpen(bitmap, cliprect, code+1, color, 0, 0, x+8, y+8, 0);
m_gfxdecode->gfx(0)->transpen(bitmap, cliprect, code+2, color, 0, 0, x, y, 0);
m_gfxdecode->gfx(0)->transpen(bitmap, cliprect, code+3, color, 0, 0, x, y+8, 0);
}
return 0;
}
void intchess_state::vram_w(offs_t offset, u8 data)
{
// d0-d2: sprite index
// d3: color
// d4-d7: N/C (4-bit RAM chip)
m_vram[offset] = data & 0xf;
}
/******************************************************************************
I/O
******************************************************************************/
void intchess_state::update_display()
{
m_display->matrix(m_select, m_7seg_data);
@ -190,6 +240,20 @@ static INPUT_PORTS_START( intchess )
INPUT_PORTS_END
static const gfx_layout layout_8x8 =
{
8,8,
RGN_FRAC(1,1),
1,
{ 0 },
{ STEP8(0,1) },
{ STEP8(0,8) },
8*8
};
static GFXDECODE_START( gfx_intchess )
GFXDECODE_ENTRY( "gfx", 0, layout_8x8, 0, 2 )
GFXDECODE_END
/******************************************************************************
@ -216,8 +280,16 @@ void intchess_state::intchess(machine_config &config)
m_encoder->x4_rd_callback().set_ioport("X4");
// video hardware
//screen.screen_vblank().set(m_via, FUNC(via6522_device::write_cb2));
SCREEN(config, m_screen, SCREEN_TYPE_RASTER);
m_screen->set_refresh_hz(50); // PAL
m_screen->set_size(8*20 + 32, 8*16 + 32);
m_screen->set_visarea(0, 8*20-1, 0, 8*16-1);
m_screen->set_screen_update(FUNC(intchess_state::screen_update));
m_screen->set_palette(m_palette);
m_screen->screen_vblank().set(m_via, FUNC(via6522_device::write_cb2));
GFXDECODE(config, m_gfxdecode, m_palette, gfx_intchess);
PALETTE(config, m_palette, FUNC(intchess_state::init_palette), 4);
PWM_DISPLAY(config, m_display).set_size(4, 8);
m_display->set_segmask(0xf, 0x7f);
@ -252,4 +324,4 @@ ROM_END
******************************************************************************/
// YEAR NAME PARENT CMP MACHINE INPUT STATE INIT COMPANY, FULLNAME, FLAGS
CONS( 1980, intchess, 0, 0, intchess, intchess, intchess_state, empty_init, "SciSys / Intelligent Games", "Intelligent Chess", MACHINE_SUPPORTS_SAVE | MACHINE_CLICKABLE_ARTWORK | MACHINE_NOT_WORKING )
CONS( 1980, intchess, 0, 0, intchess, intchess, intchess_state, empty_init, "SciSys / Intelligent Games", "Intelligent Chess", MACHINE_SUPPORTS_SAVE | MACHINE_CLICKABLE_ARTWORK | MACHINE_IMPERFECT_COLORS | MACHINE_IMPERFECT_GRAPHICS | MACHINE_NOT_WORKING )