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r30577 Tuesday 20th May, 2014 at 22:36:50 UTC by David Haywood
prepare for alt rendering (nw)

[src/mame/includes]	spbactn.h
[src/mame/video]	spbactn.c tecmo_spr.c

trunk/src/mame/includes/spbactn.h

r30576	r30577
42	42
43	43	bitmap_ind16 m_tile_bitmap_bg;
44	44	bitmap_ind16 m_tile_bitmap_fg;
	45	bitmap_ind16 m_sprite_bitmap;
45	46
46	47
47	48	DECLARE_WRITE16_MEMBER(soundcommand_w);

trunk/src/mame/video/spbactn.c

r30576	r30577
76	76	/* allocate bitmaps */
77	77	m_screen->register_screen_bitmap(m_tile_bitmap_bg);
78	78	m_screen->register_screen_bitmap(m_tile_bitmap_fg);
	79	m_screen->register_screen_bitmap(m_sprite_bitmap);
79	80
80	81	m_bg_tilemap = &machine().tilemap().create(m_gfxdecode, tilemap_get_info_delegate(FUNC(spbactn_state::get_bg_tile_info),this), TILEMAP_SCAN_ROWS, 16, 8, 64, 128);
81	82	m_fg_tilemap = &machine().tilemap().create(m_gfxdecode, tilemap_get_info_delegate(FUNC(spbactn_state::get_fg_tile_info),this), TILEMAP_SCAN_ROWS, 16, 8, 64, 128);
r30576	r30577
149	150	int spbactn_state::draw_video(screen_device &screen, bitmap_rgb32 &bitmap, const rectangle &cliprect, bool alt_sprites)
150	151	{
151	152	m_tile_bitmap_fg.fill(0, cliprect);
152
	153	m_sprite_bitmap.fill(0, cliprect);
	154
	155	#if 1
153	156	m_bg_tilemap->draw(screen, m_tile_bitmap_bg, cliprect, TILEMAP_DRAW_OPAQUE, 0);
154	157
155	158
156		if (m_sprgen->gaiden_draw_sprites(screen, m_gfxdecode, m_tile_bitmap_bg, m_tile_bitmap_fg, m_tile_bitmap_fg, cliprect, m_spvideoram, 0, 0, flip_screen(), 0, m_tile_bitmap_bg))
	159	if (m_sprgen->gaiden_draw_sprites(screen, m_gfxdecode, m_tile_bitmap_bg, m_tile_bitmap_fg, m_sprite_bitmap, cliprect, m_spvideoram, 0, 0, flip_screen(), 0, m_tile_bitmap_bg))
157	160	{
158	161	m_bg_tilemap->draw(screen, m_tile_bitmap_bg, cliprect, 0, 0);
159	162	}
160	163
161		m_sprgen->gaiden_draw_sprites(screen, m_gfxdecode, m_tile_bitmap_bg, m_tile_bitmap_fg, m_tile_bitmap_fg, cliprect, m_spvideoram, 0, 0, flip_screen(), 1, m_tile_bitmap_bg);
	164	m_sprgen->gaiden_draw_sprites(screen, m_gfxdecode, m_tile_bitmap_bg, m_tile_bitmap_fg, m_sprite_bitmap, cliprect, m_spvideoram, 0, 0, flip_screen(), 1, m_tile_bitmap_bg);
162	165
163	166	m_fg_tilemap->draw(screen, m_tile_bitmap_fg, cliprect, 0, 0);
164	167
165		m_sprgen->gaiden_draw_sprites(screen, m_gfxdecode, m_tile_bitmap_bg, m_tile_bitmap_fg, m_tile_bitmap_fg, cliprect, m_spvideoram, 0, 0, flip_screen(), 2, m_tile_bitmap_fg);
166		m_sprgen->gaiden_draw_sprites(screen, m_gfxdecode, m_tile_bitmap_bg, m_tile_bitmap_fg, m_tile_bitmap_fg, cliprect, m_spvideoram, 0, 0, flip_screen(), 3, m_tile_bitmap_fg);
	168	m_sprgen->gaiden_draw_sprites(screen, m_gfxdecode, m_tile_bitmap_bg, m_tile_bitmap_fg, m_sprite_bitmap, cliprect, m_spvideoram, 0, 0, flip_screen(), 2, m_tile_bitmap_fg);
	169	m_sprgen->gaiden_draw_sprites(screen, m_gfxdecode, m_tile_bitmap_bg, m_tile_bitmap_fg, m_sprite_bitmap, cliprect, m_spvideoram, 0, 0, flip_screen(), 3, m_tile_bitmap_fg);
167	170
168	171	/* mix & blend the tilemaps and sprites into a 32-bit bitmap */
169	172	blendbitmaps(m_palette, bitmap, m_tile_bitmap_bg, m_tile_bitmap_fg, cliprect);
	173	#else
	174
	175	m_sprgen->gaiden_draw_sprites(screen, m_gfxdecode, m_tile_bitmap_bg, m_tile_bitmap_fg, m_tile_bitmap_fg, cliprect, m_spvideoram, 0, 0, flip_screen(), -2, m_sprite_bitmap);
	176
	177	#endif
170	178	return 0;
171	179	}
172	180

trunk/src/mame/video/tecmo_spr.c

r30576	r30577
189	189
190	190
191	191
192		if (pri_hack == -1)
	192	if (pri_hack == -1) // this is what the majority of the current drivers use
193	193	{
194	194	/* blending */
195	195	if (attributes & 0x20)
r30576	r30577
202	202	bitmap = (priority >= 2) ? &bitmap_bg : &bitmap_fg;
203	203	}
204	204	}
	205	else if (pri_hack == -2) // render to a single bitmap, with all priority / colour data mixed in for later processing (assumings sprites can't blend sprites we should probably be doing this)
	206	{
	207
	208	// this contains the blend bit and the priority bits
	209	color |= (source[attributes_word] & 0x00f0);
	210	bitmap = &bitmap_prihack;
	211	}
205	212	else // spbactn
206	213	{
207	214	// this is nonsense

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