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https://github.com/holub/mame
synced 2025-04-23 00:39:36 +03:00
improved gfx bankswitching
This commit is contained in:
Michaël Banaan Ananas
parent
cff1004165
commit
171a7b2459
@ -16,7 +16,8 @@
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Todo :
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- dump homerun sample rom
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- improve controls/dips
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- better emulation of gfx bank switching (problematic in ganjaja)
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- fix sprite glitches in ganjaja Hop Step & Jump
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- fix missing water tiles in ganjaja Hop Step & Jump
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-----------------------------------
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Moero!! Pro Yakyuu Homerun Kyousou
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@ -123,6 +124,7 @@ ADDRESS_MAP_END
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CUSTOM_INPUT_MEMBER(homerun_state::homerun_40_r)
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{
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// screen split location is a guess, but works in homerun
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UINT8 ret = (machine().primary_screen->vpos() > 116) ? 1 : 0;
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return ret;
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@ -269,8 +271,7 @@ INPUT_PORTS_END
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***************************************************************************/
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// homerun samples, note that this is the complete rom contents
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// not all samples are used in this game
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// homerun samples, note that this is the complete rom contents; not all samples are used in this game
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static const char *const homerun_sample_names[] =
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{
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"*homerun",
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@ -366,20 +367,15 @@ void homerun_state::machine_start()
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save_item(NAME(m_control));
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save_item(NAME(m_sample));
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save_item(NAME(m_gfx_ctrl));
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save_item(NAME(m_gc_up));
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save_item(NAME(m_gc_down));
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save_item(NAME(m_scrolly));
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save_item(NAME(m_scrollx));
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}
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void homerun_state::machine_reset()
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{
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m_control = 0;
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m_sample = 0;
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m_gfx_ctrl = 0;
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m_gc_up = 0;
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m_gc_down = 0;
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m_scrolly = 0;
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m_scrollx = 0;
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}
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@ -401,14 +397,12 @@ static MACHINE_CONFIG_START( dynashot, homerun_state )
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MCFG_SCREEN_ADD("screen", RASTER)
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MCFG_SCREEN_REFRESH_RATE(60)
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MCFG_SCREEN_SIZE(256, 256)
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MCFG_SCREEN_VISIBLE_AREA(0, 256-1, 0, 256-25)
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//MCFG_SCREEN_VISIBLE_AREA(0*8, 32*8-1, 2*8, 30*8-1)
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MCFG_SCREEN_VISIBLE_AREA(0*8, 32*8-1, 0*8, 30*8-1)
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MCFG_SCREEN_UPDATE_STATIC(homerun)
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MCFG_GFXDECODE(homerun)
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MCFG_PALETTE_LENGTH(16*4)
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/* sound hardware */
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MCFG_SPEAKER_STANDARD_MONO("mono")
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@ -489,4 +483,4 @@ ROM_END
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GAME( 1988, homerun, 0, homerun, homerun, driver_device, 0, ROT0, "Jaleco", "Moero!! Pro Yakyuu Homerun Kyousou", GAME_IMPERFECT_GRAPHICS | GAME_IMPERFECT_SOUND | GAME_SUPPORTS_SAVE )
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GAME( 1988, dynashot, 0, dynashot, dynashot, driver_device, 0, ROT0, "Jaleco", "Dynamic Shoot Kyousou", GAME_IMPERFECT_GRAPHICS | GAME_SUPPORTS_SAVE )
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GAME( 1990, ganjaja, 0, ganjaja, ganjaja, driver_device, 0, ROT0, "Jaleco", "Ganbare Jajamaru Saisho wa Goo / Ganbare Jajamaru Hop Step & Jump", GAME_NOT_WORKING | GAME_IMPERFECT_GRAPHICS | GAME_SUPPORTS_SAVE )
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GAME( 1990, ganjaja, 0, ganjaja, ganjaja, driver_device, 0, ROT0, "Jaleco", "Ganbare Jajamaru Saisho wa Goo / Ganbare Jajamaru Hop Step & Jump", GAME_IMPERFECT_GRAPHICS | GAME_SUPPORTS_SAVE )
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@ -30,8 +30,6 @@ public:
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tilemap_t *m_tilemap;
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int m_gfx_ctrl;
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int m_gc_up;
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int m_gc_down;
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int m_scrollx;
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int m_scrolly;
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@ -8,8 +8,6 @@
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#include "includes/homerun.h"
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#define half_screen 116
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/**************************************************************************/
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WRITE8_MEMBER(homerun_state::homerun_scrollhi_w)
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@ -34,15 +32,17 @@ WRITE8_MEMBER(homerun_state::homerun_scrollx_w)
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WRITE8_DEVICE_HANDLER(homerun_banking_w)
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{
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homerun_state *state = device->machine().driver_data<homerun_state>();
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if (device->machine().primary_screen->vpos() > half_screen)
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state->m_gc_down = data & 3;
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else
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state->m_gc_up = data & 3;
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// games do mid-screen gfx bank switching
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int vpos = device->machine().primary_screen->vpos();
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device->machine().primary_screen->update_partial(vpos);
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// d0-d1: gfx bank
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// d2-d4: ?
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// d5-d7: prg bank
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state->m_gfx_ctrl = data;
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state->m_tilemap->mark_all_dirty();
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data >>= 5;
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state->membank("bank1")->set_entry(data & 0x07);
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state->membank("bank1")->set_entry(data >> 5 & 7);
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}
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WRITE8_MEMBER(homerun_state::homerun_videoram_w)
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@ -89,8 +89,8 @@ WRITE8_MEMBER(homerun_state::homerun_color_w)
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TILE_GET_INFO_MEMBER(homerun_state::get_homerun_tile_info)
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{
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int tileno = (m_videoram[tile_index]) + ((m_videoram[tile_index + 0x1000] & 0x38) << 5) + ((m_gfx_ctrl & 1) << 11);
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int palno = (m_videoram[tile_index + 0x1000] & 0x07);
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int tileno = (m_videoram[tile_index]) | ((m_videoram[tile_index | 0x1000] & 0x38) << 5) | ((m_gfx_ctrl & 1) << 11);
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int palno = (m_videoram[tile_index | 0x1000] & 0x07);
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SET_TILE_INFO_MEMBER(0, tileno, palno, 0);
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}
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@ -108,44 +108,39 @@ static void draw_sprites( running_machine &machine, bitmap_ind16 &bitmap, const
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UINT8 *spriteram = state->m_spriteram;
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int offs;
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for (offs = state->m_spriteram.bytes() - 4; offs >=0; offs -= 4)
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for (offs = state->m_spriteram.bytes() - 4; offs >= 0; offs -= 4)
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{
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int code, color, sx, sy, flipx, flipy;
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sx = spriteram[offs + 3];
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sy = spriteram[offs + 0] - 16;
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code = (spriteram[offs + 1]) + ((spriteram[offs + 2] & 0x8) << 5) + (state->m_gfx_ctrl << 9);
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color = (spriteram[offs + 2] & 0x7) + 8 ;
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flipx=(spriteram[offs + 2] & 0x40) ;
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flipy=(spriteram[offs + 2] & 0x80) ;
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int sx = spriteram[offs + 3];
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int sy = spriteram[offs + 0] - 16;
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int code = (spriteram[offs + 1]) | ((spriteram[offs + 2] & 0x8) << 5) | ((state->m_gfx_ctrl & 3) << 9);
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int color = (spriteram[offs + 2] & 0x07) | 8;
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int flipx = (spriteram[offs + 2] & 0x40) >> 6;
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int flipy = (spriteram[offs + 2] & 0x80) >> 7;
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drawgfx_transpen(bitmap, cliprect, machine.gfx[1],
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code,
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color,
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flipx,flipy,
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sx,sy,0);
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// wraparound
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drawgfx_transpen(bitmap, cliprect, machine.gfx[1],
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code,
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color,
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flipx,flipy,
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sx-256,sy,0);
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}
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}
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SCREEN_UPDATE_IND16(homerun)
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{
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homerun_state *state = screen.machine().driver_data<homerun_state>();
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rectangle myclip = cliprect;
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/* upper part */
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state->m_tilemap->set_scrolly(0, state->m_scrolly);
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state->m_tilemap->set_scrollx(0, state->m_scrollx);
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myclip.max_y /= 2;
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state->m_gfx_ctrl = state->m_gc_up;
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state->m_tilemap->draw(bitmap, myclip, 0, 0);
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draw_sprites(screen.machine(), bitmap, myclip);
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state->m_tilemap->draw(bitmap, cliprect, 0, 0);
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draw_sprites(screen.machine(), bitmap, cliprect);
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/* lower part */
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myclip.min_y += myclip.max_y;
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myclip.max_y *= 2;
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state->m_gfx_ctrl = state->m_gc_down;
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state->m_tilemap->draw(bitmap, myclip, 0, 0);
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draw_sprites(screen.machine(), bitmap, myclip);
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state->m_gc_down = state->m_gc_up;
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return 0;
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}
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