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Diffstat (limited to 'src/mame/video/tigeroad.cpp')
-rw-r--r--src/mame/video/tigeroad.cpp126
1 files changed, 126 insertions, 0 deletions
diff --git a/src/mame/video/tigeroad.cpp b/src/mame/video/tigeroad.cpp
new file mode 100644
index 00000000000..0b7f36c66d7
--- /dev/null
+++ b/src/mame/video/tigeroad.cpp
@@ -0,0 +1,126 @@
+// license:BSD-3-Clause
+// copyright-holders:Phil Stroffolino
+#include "emu.h"
+#include "includes/tigeroad.h"
+
+
+WRITE16_MEMBER(tigeroad_state::tigeroad_videoram_w)
+{
+ UINT16 *videoram = m_videoram;
+ COMBINE_DATA(&videoram[offset]);
+ m_fg_tilemap->mark_tile_dirty(offset);
+}
+
+WRITE16_MEMBER(tigeroad_state::tigeroad_videoctrl_w)
+{
+ int bank;
+
+ if (ACCESSING_BITS_8_15)
+ {
+ data = (data >> 8) & 0xff;
+
+ /* bit 1 flips screen */
+
+ if (flip_screen() != (data & 0x02))
+ {
+ flip_screen_set(data & 0x02);
+ machine().tilemap().mark_all_dirty();
+ }
+
+ /* bit 2 selects bg char bank */
+
+ bank = (data & 0x04) >> 2;
+
+ if (m_bgcharbank != bank)
+ {
+ m_bgcharbank = bank;
+ m_bg_tilemap->mark_all_dirty();
+ }
+
+ /* bits 4-5 are coin lockouts */
+ if (m_has_coinlock)
+ {
+ coin_lockout_w(machine(), 0, !(data & 0x10));
+ coin_lockout_w(machine(), 1, !(data & 0x20));
+ }
+
+ /* bits 6-7 are coin counters */
+
+ coin_counter_w(machine(), 0, data & 0x40);
+ coin_counter_w(machine(), 1, data & 0x80);
+ }
+}
+
+WRITE16_MEMBER(tigeroad_state::tigeroad_scroll_w)
+{
+ int scroll = 0;
+
+ COMBINE_DATA(&scroll);
+
+ switch (offset)
+ {
+ case 0:
+ m_bg_tilemap->set_scrollx(0, scroll);
+ break;
+ case 1:
+ m_bg_tilemap->set_scrolly(0, -scroll - 32 * 8);
+ break;
+ }
+}
+
+
+
+TILE_GET_INFO_MEMBER(tigeroad_state::get_bg_tile_info)
+{
+ UINT8 *tilerom = memregion("bgmap")->base();
+
+ int data = tilerom[tile_index];
+ int attr = tilerom[tile_index + 1];
+ int code = data + ((attr & 0xc0) << 2) + (m_bgcharbank << 10);
+ int color = attr & 0x0f;
+ int flags = (attr & 0x20) ? TILE_FLIPX : 0;
+
+ SET_TILE_INFO_MEMBER(1, code, color, flags);
+ tileinfo.group = (attr & 0x10) ? 1 : 0;
+}
+
+TILE_GET_INFO_MEMBER(tigeroad_state::get_fg_tile_info)
+{
+ UINT16 *videoram = m_videoram;
+ int data = videoram[tile_index];
+ int attr = data >> 8;
+ int code = (data & 0xff) + ((attr & 0xc0) << 2) + ((attr & 0x20) << 5);
+ int color = attr & 0x0f;
+ int flags = (attr & 0x10) ? TILE_FLIPY : 0;
+
+ SET_TILE_INFO_MEMBER(0, code, color, flags);
+}
+
+TILEMAP_MAPPER_MEMBER(tigeroad_state::tigeroad_tilemap_scan)
+{
+ /* logical (col,row) -> memory offset */
+ return 2 * (col % 8) + 16 * ((127 - row) % 8) + 128 * (col / 8) + 2048 * ((127 - row) / 8);
+}
+
+void tigeroad_state::video_start()
+{
+ m_bg_tilemap = &machine().tilemap().create(m_gfxdecode, tilemap_get_info_delegate(FUNC(tigeroad_state::get_bg_tile_info),this), tilemap_mapper_delegate(FUNC(tigeroad_state::tigeroad_tilemap_scan),this),
+ 32, 32, 128, 128);
+
+ m_fg_tilemap = &machine().tilemap().create(m_gfxdecode, tilemap_get_info_delegate(FUNC(tigeroad_state::get_fg_tile_info),this), TILEMAP_SCAN_ROWS,
+ 8, 8, 32, 32);
+
+ m_bg_tilemap->set_transmask(0, 0xffff, 0);
+ m_bg_tilemap->set_transmask(1, 0x1ff, 0xfe00);
+
+ m_fg_tilemap->set_transparent_pen(3);
+}
+
+UINT32 tigeroad_state::screen_update_tigeroad(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect)
+{
+ m_bg_tilemap->draw(screen, bitmap, cliprect, TILEMAP_DRAW_LAYER1, 0);
+ m_spritegen->draw_sprites(bitmap, cliprect, m_gfxdecode, 2, m_spriteram->buffer(), m_spriteram->bytes(), flip_screen(), 1 );
+ m_bg_tilemap->draw(screen, bitmap, cliprect, TILEMAP_DRAW_LAYER0, 1);
+ m_fg_tilemap->draw(screen, bitmap, cliprect, 0, 2);
+ return 0;
+}