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badlandsbl.cpp: added preliminary sprite drawing [Angelo Salese]

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This commit is contained in:
angelosa 2018-02-15 20:59:01 +01:00
parent 12d7ed9a75
commit 852a6533e9
2 changed files with 77 additions and 17 deletions
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72
src/mame/drivers/badlandsbl.cpp
View File

@ -35,11 +35,63 @@
#include "emu.h"
#include "includes/badlands.h"
uint32_t badlandsbl_state::screen_update_badlandsbl(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect)
{
// start drawing
//m_mob->draw_async(cliprect);
// draw the playfield
m_playfield_tilemap->draw(screen, bitmap, cliprect, 0, 0);
// draw bootleg sprites chip
// TODO: is this derived from something else?
{
gfx_element *gfx = m_gfxdecode->gfx(1);
for(int count=0;count<0x100-0x10;count+=4)
{
if((m_spriteram[count+3] & 0xff) == 0xff)
return 0;
uint16 tile = m_spriteram[count];
int y = (511 - 14) - (m_spriteram[count+1] & 0x1ff);
int x = (m_spriteram[count+2] >> 7) - 7;
int color = (m_spriteram[count+3] >> 8) & 7;
int h = (m_spriteram[count+3] & 0xf) + 1;
for(int yi=0;yi<h;yi++)
gfx->transpen(bitmap,cliprect,tile+yi,color,0,0,x,y+yi*8,0);
}
}
// draw and merge the MO
#if 0
bitmap_ind16 &mobitmap = m_mob->bitmap();
for (const sparse_dirty_rect *rect = m_mob->first_dirty_rect(cliprect); rect != nullptr; rect = rect->next())
for (int y = rect->min_y; y <= rect->max_y; y++)
{
uint16_t *mo = &mobitmap.pix16(y);
uint16_t *pf = &bitmap.pix16(y);
for (int x = rect->min_x; x <= rect->max_x; x++)
if (mo[x] != 0xffff)
{
/* not yet verified
*/
if ((mo[x] & atari_motion_objects_device::PRIORITY_MASK) || !(pf[x] & 8))
pf[x] = mo[x] & atari_motion_objects_device::DATA_MASK;
}
}
#endif
return 0;
}
READ16_MEMBER(badlandsbl_state::badlandsb_unk_r)
{
return 0xffff;
}
// TODO: this prolly mimics audio_io_r/_w in original version
READ8_MEMBER(badlandsbl_state::bootleg_shared_r)
{
return m_b_sharedram[offset];
@ -53,10 +105,11 @@ WRITE8_MEMBER(badlandsbl_state::bootleg_shared_w)
ADDRESS_MAP_START(badlandsbl_state::bootleg_map)
AM_RANGE(0x000000, 0x03ffff) AM_ROM
// only 0-0xff accessed, assume all range is shared
AM_RANGE(0x400000, 0x401fff) AM_READWRITE8(bootleg_shared_r,bootleg_shared_w,0xffff)
AM_RANGE(0x400000, 0x40000f) AM_READWRITE8(bootleg_shared_r,bootleg_shared_w,0xffff)
AM_RANGE(0x400010, 0x4000ff) AM_RAM AM_SHARE("spriteram")
AM_RANGE(0xfc0000, 0xfc0001) AM_READ(badlandsb_unk_r ) // sound comms?
// sound comms?
AM_RANGE(0xfc0000, 0xfc0001) AM_READ(badlandsb_unk_r) AM_WRITENOP
AM_RANGE(0xfd0000, 0xfd1fff) AM_DEVREADWRITE8("eeprom", eeprom_parallel_28xx_device, read, write, 0x00ff)
//AM_RANGE(0xfe0000, 0xfe1fff) AM_DEVWRITE("watchdog", watchdog_timer_device, reset_w)
@ -71,8 +124,8 @@ ADDRESS_MAP_START(badlandsbl_state::bootleg_map)
AM_RANGE(0xffc000, 0xffc3ff) AM_DEVREADWRITE8("palette", palette_device, read8, write8, 0xff00) AM_SHARE("palette")
AM_RANGE(0xffe000, 0xffefff) AM_RAM_DEVWRITE("playfield", tilemap_device, write16) AM_SHARE("playfield")
// TODO: actually sprites are at 0xfff600-0x7ff ?
AM_RANGE(0xfff000, 0xfff1ff) AM_RAM AM_SHARE("mob")
AM_RANGE(0xfff000, 0xfff1ff) AM_RAM
AM_RANGE(0xfff200, 0xffffff) AM_RAM
ADDRESS_MAP_END
@ -83,7 +136,8 @@ WRITE8_MEMBER(badlandsbl_state::bootleg_main_irq_w)
ADDRESS_MAP_START(badlandsbl_state::bootleg_audio_map)
AM_RANGE(0x0000, 0x1fff) AM_ROM AM_REGION("audiorom", 0)
AM_RANGE(0x2000, 0x3fff) AM_RAM AM_SHARE("b_sharedram")
AM_RANGE(0x2000, 0x200f) AM_RAM AM_SHARE("b_sharedram")
AM_RANGE(0x2010, 0x3fff) AM_RAM
AM_RANGE(0x4000, 0xcfff) AM_ROM AM_REGION("audiorom", 0x4000)
AM_RANGE(0xd400, 0xd400) AM_WRITE(bootleg_main_irq_w) // correct?
AM_RANGE(0xd800, 0xd801) AM_DEVREADWRITE("ymsnd", ym2151_device, read, write)
@ -186,15 +240,15 @@ MACHINE_CONFIG_START(badlandsbl_state::badlandsb)
MCFG_PALETTE_MEMBITS(8)
MCFG_TILEMAP_ADD_STANDARD("playfield", "gfxdecode", 2, badlands_state, get_playfield_tile_info, 8,8, SCAN_ROWS, 64,32)
MCFG_ATARI_MOTION_OBJECTS_ADD("mob", "screen", badlands_state::s_mob_config)
MCFG_ATARI_MOTION_OBJECTS_GFXDECODE("gfxdecode")
// MCFG_ATARI_MOTION_OBJECTS_ADD("mob", "screen", badlands_state::s_mob_config)
// MCFG_ATARI_MOTION_OBJECTS_GFXDECODE("gfxdecode")
MCFG_SCREEN_ADD("screen", RASTER)
MCFG_SCREEN_VIDEO_ATTRIBUTES(VIDEO_UPDATE_BEFORE_VBLANK)
/* note: these parameters are from published specs, not derived */
/* the board uses an SOS-2 chip to generate video signals */
MCFG_SCREEN_RAW_PARAMS(ATARI_CLOCK_14MHz/2, 456, 0, 336, 262, 0, 240)
MCFG_SCREEN_UPDATE_DRIVER(badlands_state, screen_update_badlands)
MCFG_SCREEN_UPDATE_DRIVER(badlandsbl_state, screen_update_badlandsbl)
MCFG_SCREEN_PALETTE("palette")
MCFG_VIDEO_START_OVERRIDE(badlands_state,badlands)

22
src/mame/includes/badlands.h
View File

@ -36,19 +36,14 @@ public:
m_audiocpu(*this, "audiocpu"),
m_soundcomm(*this, "soundcomm"),
m_playfield_tilemap(*this, "playfield"),
m_mob(*this, "mob"),
m_b_sharedram(*this, "b_sharedram")
m_mob(*this, "mob")
{ }
optional_device<cpu_device> m_audiocpu;
optional_device<atari_sound_comm_device> m_soundcomm;
required_device<tilemap_device> m_playfield_tilemap;
required_device<atari_motion_objects_device> m_mob;
optional_shared_ptr<uint8_t> m_b_sharedram;
uint8_t m_pedal_value[2];
uint8_t m_playfield_tile_bank;
optional_device<atari_motion_objects_device> m_mob;
virtual void update_interrupts() override;
virtual void scanline_update(screen_device &screen, int scanline) override;
@ -71,13 +66,19 @@ public:
void badlands(machine_config &config);
void audio_map(address_map &map);
void main_map(address_map &map);
private:
uint8_t m_pedal_value[2];
uint8_t m_playfield_tile_bank;
};
class badlandsbl_state : public badlands_state
{
public:
badlandsbl_state(const machine_config &mconfig, device_type type, const char *tag)
: badlands_state(mconfig, type, tag)
: badlands_state(mconfig, type, tag),
m_b_sharedram(*this, "b_sharedram"),
m_spriteram(*this, "spriteram")
{}
DECLARE_READ8_MEMBER(bootleg_shared_r);
@ -89,9 +90,14 @@ public:
void badlandsb(machine_config &config);
void bootleg_map(address_map &map);
void bootleg_audio_map(address_map &map);
uint32_t screen_update_badlandsbl(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect);
protected:
virtual void machine_reset() override;
private:
required_shared_ptr<uint8_t> m_b_sharedram;
required_shared_ptr<uint16_t> m_spriteram;
};