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r17911 Sunday 16th September, 2012 at 00:15:50 UTC by hap
improved gfx bankswitching

[src/mame/drivers]	homerun.c
[src/mame/includes]	homerun.h
[src/mame/video]	homerun.c

trunk/src/mame/video/homerun.c

r17910	r17911
8	8	#include "includes/homerun.h"
9	9
10	10
11		#define half_screen 116
12
13	11	/**************************************************************************/
14	12
15	13	WRITE8_MEMBER(homerun_state::homerun_scrollhi_w)
r17910	r17911
34	32	WRITE8_DEVICE_HANDLER(homerun_banking_w)
35	33	{
36	34	homerun_state *state = device->machine().driver_data<homerun_state>();
37		if (device->machine().primary_screen->vpos() > half_screen)
38		state->m_gc_down = data & 3;
39		else
40		state->m_gc_up = data & 3;
41
	35
	36	// games do mid-screen gfx bank switching
	37	int vpos = device->machine().primary_screen->vpos();
	38	device->machine().primary_screen->update_partial(vpos);
	39
	40	// d0-d1: gfx bank
	41	// d2-d4: ?
	42	// d5-d7: prg bank
	43	state->m_gfx_ctrl = data;
42	44	state->m_tilemap->mark_all_dirty();
43
44		data >>= 5;
45		state->membank("bank1")->set_entry(data & 0x07);
	45	state->membank("bank1")->set_entry(data >> 5 & 7);
46	46	}
47	47
48	48	WRITE8_MEMBER(homerun_state::homerun_videoram_w)
r17910	r17911
89	89
90	90	TILE_GET_INFO_MEMBER(homerun_state::get_homerun_tile_info)
91	91	{
92		int tileno = (m_videoram[tile_index]) + ((m_videoram[tile_index + 0x1000] & 0x38) << 5) + ((m_gfx_ctrl & 1) << 11);
93		int palno = (m_videoram[tile_index + 0x1000] & 0x07);
	92	int tileno = (m_videoram[tile_index]) | ((m_videoram[tile_index | 0x1000] & 0x38) << 5) | ((m_gfx_ctrl & 1) << 11);
	93	int palno = (m_videoram[tile_index | 0x1000] & 0x07);
94	94
95	95	SET_TILE_INFO_MEMBER(0, tileno, palno, 0);
96	96	}
r17910	r17911
108	108	UINT8 *spriteram = state->m_spriteram;
109	109	int offs;
110	110
111		for (offs = state->m_spriteram.bytes() - 4; offs >=0; offs -= 4)
	111	for (offs = state->m_spriteram.bytes() - 4; offs >= 0; offs -= 4)
112	112	{
113		int code, color, sx, sy, flipx, flipy;
114		sx = spriteram[offs + 3];
115		sy = spriteram[offs + 0] - 16;
116		code = (spriteram[offs + 1]) + ((spriteram[offs + 2] & 0x8) << 5) + (state->m_gfx_ctrl << 9);
117		color = (spriteram[offs + 2] & 0x7) + 8 ;
118		flipx=(spriteram[offs + 2] & 0x40) ;
119		flipy=(spriteram[offs + 2] & 0x80) ;
	113	int sx = spriteram[offs + 3];
	114	int sy = spriteram[offs + 0] - 16;
	115	int code = (spriteram[offs + 1]) | ((spriteram[offs + 2] & 0x8) << 5) | ((state->m_gfx_ctrl & 3) << 9);
	116	int color = (spriteram[offs + 2] & 0x07) | 8;
	117	int flipx = (spriteram[offs + 2] & 0x40) >> 6;
	118	int flipy = (spriteram[offs + 2] & 0x80) >> 7;
	119
120	120	drawgfx_transpen(bitmap, cliprect, machine.gfx[1],
121	121	code,
122	122	color,
123	123	flipx,flipy,
124	124	sx,sy,0);
	125
	126	// wraparound
	127	drawgfx_transpen(bitmap, cliprect, machine.gfx[1],
	128	code,
	129	color,
	130	flipx,flipy,
	131	sx-256,sy,0);
125	132	}
126	133	}
127	134
128	135	SCREEN_UPDATE_IND16(homerun)
129	136	{
130	137	homerun_state *state = screen.machine().driver_data<homerun_state>();
131		rectangle myclip = cliprect;
132	138
133		/* upper part */
134	139	state->m_tilemap->set_scrolly(0, state->m_scrolly);
135	140	state->m_tilemap->set_scrollx(0, state->m_scrollx);
136	141
137		myclip.max_y /= 2;
138		state->m_gfx_ctrl = state->m_gc_up;
139		state->m_tilemap->draw(bitmap, myclip, 0, 0);
140		draw_sprites(screen.machine(), bitmap, myclip);
	142	state->m_tilemap->draw(bitmap, cliprect, 0, 0);
	143	draw_sprites(screen.machine(), bitmap, cliprect);
141	144
142		/* lower part */
143		myclip.min_y += myclip.max_y;
144		myclip.max_y *= 2;
145		state->m_gfx_ctrl = state->m_gc_down;
146		state->m_tilemap->draw(bitmap, myclip, 0, 0);
147		draw_sprites(screen.machine(), bitmap, myclip);
148
149		state->m_gc_down = state->m_gc_up;
150	145	return 0;
151	146	}

trunk/src/mame/includes/homerun.h

r17910	r17911
30	30
31	31	tilemap_t *m_tilemap;
32	32	int m_gfx_ctrl;
33		int m_gc_up;
34		int m_gc_down;
35	33	int m_scrollx;
36	34	int m_scrolly;
37	35

trunk/src/mame/drivers/homerun.c

r17910	r17911
16	16	Todo :
17	17	- dump homerun sample rom
18	18	- improve controls/dips
19		- better emulation of gfx bank switching (problematic in ganjaja)
	19	- fix sprite glitches in ganjaja Hop Step & Jump
	20	- fix missing water tiles in ganjaja Hop Step & Jump
20	21
21	22	-----------------------------------
22	23	Moero!! Pro Yakyuu Homerun Kyousou
r17910	r17911
123	124
124	125	CUSTOM_INPUT_MEMBER(homerun_state::homerun_40_r)
125	126	{
	127	// screen split location is a guess, but works in homerun
126	128	UINT8 ret = (machine().primary_screen->vpos() > 116) ? 1 : 0;
127	129
128	130	return ret;
r17910	r17911
269	271
270	272	***************************************************************************/
271	273
272		// homerun samples, note that this is the complete rom contents
273		// not all samples are used in this game
	274	// homerun samples, note that this is the complete rom contents; not all samples are used in this game
274	275	static const char *const homerun_sample_names[] =
275	276	{
276	277	"*homerun",
r17910	r17911
366	367	save_item(NAME(m_control));
367	368	save_item(NAME(m_sample));
368	369	save_item(NAME(m_gfx_ctrl));
369		save_item(NAME(m_gc_up));
370		save_item(NAME(m_gc_down));
371	370	save_item(NAME(m_scrolly));
372	371	save_item(NAME(m_scrollx));
373	372	}
374	373
375	374	void homerun_state::machine_reset()
376	375	{
377
378	376	m_control = 0;
379	377	m_sample = 0;
380	378	m_gfx_ctrl = 0;
381		m_gc_up = 0;
382		m_gc_down = 0;
383	379	m_scrolly = 0;
384	380	m_scrollx = 0;
385	381	}
r17910	r17911
401	397	MCFG_SCREEN_ADD("screen", RASTER)
402	398	MCFG_SCREEN_REFRESH_RATE(60)
403	399	MCFG_SCREEN_SIZE(256, 256)
404		MCFG_SCREEN_VISIBLE_AREA(0, 256-1, 0, 256-25)
405		//MCFG_SCREEN_VISIBLE_AREA(0*8, 32*8-1, 2*8, 30*8-1)
	400	MCFG_SCREEN_VISIBLE_AREA(0*8, 32*8-1, 0*8, 30*8-1)
406	401	MCFG_SCREEN_UPDATE_STATIC(homerun)
407	402
408	403	MCFG_GFXDECODE(homerun)
409	404	MCFG_PALETTE_LENGTH(16*4)
410	405
411
412	406	/* sound hardware */
413	407	MCFG_SPEAKER_STANDARD_MONO("mono")
414	408
r17910	r17911
489	483
490	484	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 )
491	485	GAME( 1988, dynashot, 0, dynashot, dynashot, driver_device, 0, ROT0, "Jaleco", "Dynamic Shoot Kyousou", GAME_IMPERFECT_GRAPHICS | GAME_SUPPORTS_SAVE )
492		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 )
	486	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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