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decbac06: small cleanup (nw)
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hap
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7514b1aaa9
@ -3,20 +3,20 @@
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/*
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Deco BAC06 tilemap generator:
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this a direct relative of the later chip implemented in deco16ic.c
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this a direct relative of the later chip implemented in deco16ic.cpp
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we could implement this as either an 8-bit or a 16-bit chip, for now
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I'm using the 16-bit implementation from dec0.c
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I'm using the 16-bit implementation from dec0.cpp
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used by:
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actfancr.c
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dec0.c
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dec8.c (oscar, cobracom, ghostb)
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madmotor.c
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stadhero.c
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pcktgal.c
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actfancr.cpp
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dec0.cpp
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dec8.cpp (oscar, cobracom, ghostb)
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madmotor.cpp
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stadhero.cpp
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pcktgal.cpp
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Notes (from dec0.c)
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Notes (from dec0.cpp)
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All games contain three BAC06 background generator chips, usual (software)
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configuration is 2 chips of 16*16 tiles, 1 of 8*8.
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@ -46,7 +46,7 @@ configuration is 2 chips of 16*16 tiles, 1 of 8*8.
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* Bandit is the only game known to use column major tile layout, when in this
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mode X scrolling is also inverted, and tile character data is flipped on X.
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Playfield priority (Bad Dudes, etc):
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In the bottommost playfield, pens 8-15 can have priority over the next playfield.
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In that next playfield, pens 8-15 can have priority over sprites.
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@ -92,10 +92,10 @@ deco_bac06_device::deco_bac06_device(const machine_config &mconfig, const char *
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, m_gfxdecode(*this, finder_base::DUMMY_TAG)
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{
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for (int i = 0; i < 8; i++)
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{
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m_pf_control_0[i] = 0;
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m_pf_control_1[i] = 0;
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}
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{
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m_pf_control_0[i] = 0;
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m_pf_control_1[i] = 0;
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}
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}
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void deco_bac06_device::device_start()
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@ -213,40 +213,38 @@ void deco_bac06_device::create_tilemaps(int region8x8, int region16x16)
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m_pf8x8_tilemap[1] = &machine().tilemap().create(*m_gfxdecode, tilemap_get_info_delegate(FUNC(deco_bac06_device::get_pf8x8_tile_info),this),tilemap_mapper_delegate(FUNC(deco_bac06_device::tile_shape1_8x8_scan),this), 8, 8, 64, 64);
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m_pf8x8_tilemap[2] = &machine().tilemap().create(*m_gfxdecode, tilemap_get_info_delegate(FUNC(deco_bac06_device::get_pf8x8_tile_info),this),tilemap_mapper_delegate(FUNC(deco_bac06_device::tile_shape2_8x8_scan),this), 8, 8, 32,128);
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if (m_wide==2)
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{
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m_pf16x16_tilemap[0] = &machine().tilemap().create(*m_gfxdecode, tilemap_get_info_delegate(FUNC(deco_bac06_device::get_pf16x16_tile_info),this), tilemap_mapper_delegate(FUNC(deco_bac06_device::tile_shape0_scan),this), 16, 16, 256, 16);
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m_pf16x16_tilemap[1] = &machine().tilemap().create(*m_gfxdecode, tilemap_get_info_delegate(FUNC(deco_bac06_device::get_pf16x16_tile_info),this), tilemap_mapper_delegate(FUNC(deco_bac06_device::tile_shape1_scan),this), 16, 16, 128, 32);
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m_pf16x16_tilemap[2] = &machine().tilemap().create(*m_gfxdecode, tilemap_get_info_delegate(FUNC(deco_bac06_device::get_pf16x16_tile_info),this), tilemap_mapper_delegate(FUNC(deco_bac06_device::tile_shape2_scan),this), 16, 16, 64, 64);
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m_pf16x16_tilemap[1] = &machine().tilemap().create(*m_gfxdecode, tilemap_get_info_delegate(FUNC(deco_bac06_device::get_pf16x16_tile_info),this), tilemap_mapper_delegate(FUNC(deco_bac06_device::tile_shape1_scan),this), 16, 16, 128, 32);
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m_pf16x16_tilemap[2] = &machine().tilemap().create(*m_gfxdecode, tilemap_get_info_delegate(FUNC(deco_bac06_device::get_pf16x16_tile_info),this), tilemap_mapper_delegate(FUNC(deco_bac06_device::tile_shape2_scan),this), 16, 16, 64, 64);
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}
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else if (m_wide==1)
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{
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m_pf16x16_tilemap[0] = &machine().tilemap().create(*m_gfxdecode, tilemap_get_info_delegate(FUNC(deco_bac06_device::get_pf16x16_tile_info),this), tilemap_mapper_delegate(FUNC(deco_bac06_device::tile_shape0_scan),this), 16, 16, 128, 16);
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m_pf16x16_tilemap[1] = &machine().tilemap().create(*m_gfxdecode, tilemap_get_info_delegate(FUNC(deco_bac06_device::get_pf16x16_tile_info),this), tilemap_mapper_delegate(FUNC(deco_bac06_device::tile_shape1_scan),this), 16, 16, 64, 32);
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m_pf16x16_tilemap[2] = &machine().tilemap().create(*m_gfxdecode, tilemap_get_info_delegate(FUNC(deco_bac06_device::get_pf16x16_tile_info),this), tilemap_mapper_delegate(FUNC(deco_bac06_device::tile_shape2_scan),this), 16, 16, 32, 64);
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m_pf16x16_tilemap[1] = &machine().tilemap().create(*m_gfxdecode, tilemap_get_info_delegate(FUNC(deco_bac06_device::get_pf16x16_tile_info),this), tilemap_mapper_delegate(FUNC(deco_bac06_device::tile_shape1_scan),this), 16, 16, 64, 32);
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m_pf16x16_tilemap[2] = &machine().tilemap().create(*m_gfxdecode, tilemap_get_info_delegate(FUNC(deco_bac06_device::get_pf16x16_tile_info),this), tilemap_mapper_delegate(FUNC(deco_bac06_device::tile_shape2_scan),this), 16, 16, 32, 64);
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}
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else
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{
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m_pf16x16_tilemap[0] = &machine().tilemap().create(*m_gfxdecode, tilemap_get_info_delegate(FUNC(deco_bac06_device::get_pf16x16_tile_info),this),tilemap_mapper_delegate(FUNC(deco_bac06_device::tile_shape0_scan),this), 16,16, 64, 16);
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m_pf16x16_tilemap[1] = &machine().tilemap().create(*m_gfxdecode, tilemap_get_info_delegate(FUNC(deco_bac06_device::get_pf16x16_tile_info),this),tilemap_mapper_delegate(FUNC(deco_bac06_device::tile_shape1_scan),this), 16,16, 32, 32);
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m_pf16x16_tilemap[2] = &machine().tilemap().create(*m_gfxdecode, tilemap_get_info_delegate(FUNC(deco_bac06_device::get_pf16x16_tile_info),this),tilemap_mapper_delegate(FUNC(deco_bac06_device::tile_shape2_scan),this), 16,16, 16, 64);
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m_pf16x16_tilemap[0] = &machine().tilemap().create(*m_gfxdecode, tilemap_get_info_delegate(FUNC(deco_bac06_device::get_pf16x16_tile_info),this),tilemap_mapper_delegate(FUNC(deco_bac06_device::tile_shape0_scan),this), 16, 16, 64, 16);
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m_pf16x16_tilemap[1] = &machine().tilemap().create(*m_gfxdecode, tilemap_get_info_delegate(FUNC(deco_bac06_device::get_pf16x16_tile_info),this),tilemap_mapper_delegate(FUNC(deco_bac06_device::tile_shape1_scan),this), 16, 16, 32, 32);
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m_pf16x16_tilemap[2] = &machine().tilemap().create(*m_gfxdecode, tilemap_get_info_delegate(FUNC(deco_bac06_device::get_pf16x16_tile_info),this),tilemap_mapper_delegate(FUNC(deco_bac06_device::tile_shape2_scan),this), 16, 16, 16, 64);
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}
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}
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void deco_bac06_device::custom_tilemap_draw(bitmap_ind16 &bitmap,
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const rectangle &cliprect,
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tilemap_t *tilemap_ptr,
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const uint16_t *rowscroll_ptr,
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const uint16_t *colscroll_ptr,
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const uint16_t *control0,
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const uint16_t *control1,
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int flags,
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uint16_t penmask,
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uint16_t pencondition,
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uint16_t colprimask,
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uint16_t colpricondition
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)
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const rectangle &cliprect,
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tilemap_t *tilemap_ptr,
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const uint16_t *rowscroll_ptr,
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const uint16_t *colscroll_ptr,
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const uint16_t *control0,
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const uint16_t *control1,
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int flags,
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uint16_t penmask,
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uint16_t pencondition,
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uint16_t colprimask,
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uint16_t colpricondition)
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{
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const bitmap_ind16 &src_bitmap = tilemap_ptr->pixmap();
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const bitmap_ind8 &flags_bitmap = tilemap_ptr->flagsmap();
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@ -304,7 +302,8 @@ void deco_bac06_device::custom_tilemap_draw(bitmap_ind16 &bitmap,
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else
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src_y = scrolly;
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for (y=0; y<=cliprect.bottom(); y++) {
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for (y=0; y<=cliprect.bottom(); y++)
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{
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if (row_scroll_enabled)
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src_x=scrollx + rowscroll_ptr[(src_y >> (control1[3]&0xf))&(0x1ff>>(control1[3]&0xf))];
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else
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@ -313,7 +312,8 @@ void deco_bac06_device::custom_tilemap_draw(bitmap_ind16 &bitmap,
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if (m_flip_screen)
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src_x=(src_bitmap.width() - 256) - src_x;
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for (x=0; x<=cliprect.right(); x++) {
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for (x=0; x<=cliprect.right(); x++)
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{
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if (col_scroll_enabled)
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column_offset=colscroll_ptr[((src_x >> 3) >> (control1[2]&0xf))&(0x3f>>(control1[2]&0xf))];
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@ -364,7 +364,6 @@ void deco_bac06_device::deco_bac06_pf_draw(bitmap_ind16 &bitmap,const rectangle
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if (tm)
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custom_tilemap_draw(bitmap,cliprect,tm,m_pf_rowscroll.get(),m_pf_colscroll.get(),m_pf_control_0,m_pf_control_1,flags, penmask, pencondition, colprimask, colpricondition);
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}
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// used for pocket gal bootleg, which doesn't set registers properly and simply expects a fixed size tilemap.
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@ -394,12 +393,11 @@ WRITE16_MEMBER( deco_bac06_device::pf_control_0_w )
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{
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// The tilemap has changed from row major to column major or vice versa.
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// Must force an update of the mapping.
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m_pf8x8_tilemap[0]->mark_mapping_dirty();
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m_pf8x8_tilemap[1]->mark_mapping_dirty();
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m_pf8x8_tilemap[2]->mark_mapping_dirty();
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m_pf16x16_tilemap[0]->mark_mapping_dirty();
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m_pf16x16_tilemap[1]->mark_mapping_dirty();
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m_pf16x16_tilemap[2]->mark_mapping_dirty();
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for (int i = 0; i < 3; i++)
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{
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m_pf8x8_tilemap[i]->mark_mapping_dirty();
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m_pf16x16_tilemap[i]->mark_mapping_dirty();
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}
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dirty_all = true;
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}
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}
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@ -417,15 +415,14 @@ WRITE16_MEMBER( deco_bac06_device::pf_control_0_w )
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m_rambank = newbank&1;
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}
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}
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if (dirty_all)
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{
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m_pf8x8_tilemap[0]->mark_all_dirty();
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m_pf8x8_tilemap[1]->mark_all_dirty();
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m_pf8x8_tilemap[2]->mark_all_dirty();
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m_pf16x16_tilemap[0]->mark_all_dirty();
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m_pf16x16_tilemap[1]->mark_all_dirty();
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m_pf16x16_tilemap[2]->mark_all_dirty();
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for (int i = 0; i < 3; i++)
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{
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m_pf8x8_tilemap[i]->mark_all_dirty();
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m_pf16x16_tilemap[i]->mark_all_dirty();
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}
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}
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}
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@ -446,12 +443,12 @@ WRITE16_MEMBER( deco_bac06_device::pf_data_w )
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if (m_rambank&1) offset+=0x1000;
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COMBINE_DATA(&m_pf_data[offset]);
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m_pf8x8_tilemap[0]->mark_tile_dirty(offset);
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m_pf8x8_tilemap[1]->mark_tile_dirty(offset);
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m_pf8x8_tilemap[2]->mark_tile_dirty(offset);
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m_pf16x16_tilemap[0]->mark_tile_dirty(offset);
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m_pf16x16_tilemap[1]->mark_tile_dirty(offset);
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m_pf16x16_tilemap[2]->mark_tile_dirty(offset);
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for (int i = 0; i < 3; i++)
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{
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m_pf8x8_tilemap[i]->mark_tile_dirty(offset);
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m_pf16x16_tilemap[i]->mark_tile_dirty(offset);
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}
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}
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READ16_MEMBER( deco_bac06_device::pf_data_r )
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@ -497,7 +494,7 @@ READ16_MEMBER( deco_bac06_device::pf_colscroll_r )
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return m_pf_colscroll[offset];
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}
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/* used by dec8.c */
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/* used by dec8.cpp */
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WRITE8_MEMBER( deco_bac06_device::pf_control0_8bit_w )
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{
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if (offset&1)
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@ -506,7 +503,7 @@ WRITE8_MEMBER( deco_bac06_device::pf_control0_8bit_w )
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pf_control_0_w(space,offset/2,data,0x00ff);
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}
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/* used by dec8.c */
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/* used by dec8.cpp */
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READ8_MEMBER( deco_bac06_device::pf_control1_8bit_r )
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{
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if (offset&1)
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@ -515,7 +512,7 @@ READ8_MEMBER( deco_bac06_device::pf_control1_8bit_r )
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return pf_control_1_r(space,offset/2,0xff00)>>8;
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}
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/* used by dec8.c */
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/* used by dec8.cpp */
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WRITE8_MEMBER( deco_bac06_device::pf_control1_8bit_w )
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{
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if (offset<4) // these registers are 16-bit?
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