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Diffstat (limited to 'src/mame/video/seicross.cpp')
-rw-r--r--src/mame/video/seicross.cpp143
1 files changed, 0 insertions, 143 deletions
diff --git a/src/mame/video/seicross.cpp b/src/mame/video/seicross.cpp
deleted file mode 100644
index 5d8556f3a10..00000000000
--- a/src/mame/video/seicross.cpp
+++ /dev/null
@@ -1,143 +0,0 @@
-// license:BSD-3-Clause
-// copyright-holders:Nicola Salmoria
-/***************************************************************************
-
- video.c
-
- Functions to emulate the video hardware of the machine.
-
-***************************************************************************/
-
-#include "emu.h"
-#include "includes/seicross.h"
-
-/***************************************************************************
-
- Convert the color PROMs into a more useable format.
-
- Seicross has two 32x8 palette PROMs, connected to the RGB output this way:
-
- bit 7 -- 220 ohm resistor -- BLUE
- -- 470 ohm resistor -- BLUE
- -- 220 ohm resistor -- GREEN
- -- 470 ohm resistor -- GREEN
- -- 1 kohm resistor -- GREEN
- -- 220 ohm resistor -- RED
- -- 470 ohm resistor -- RED
- bit 0 -- 1 kohm resistor -- RED
-
-***************************************************************************/
-void seicross_state::seicross_palette(palette_device &palette) const
-{
- uint8_t const *const color_prom = memregion("proms")->base();
-
- for (int i = 0; i < palette.entries(); i++)
- {
- int bit0, bit1, bit2;
-
- // red component
- bit0 = BIT(color_prom[i], 0);
- bit1 = BIT(color_prom[i], 1);
- bit2 = BIT(color_prom[i], 2);
- int const r = 0x21 * bit0 + 0x47 * bit1 + 0x97 * bit2;
- // green component
- bit0 = BIT(color_prom[i], 3);
- bit1 = BIT(color_prom[i], 4);
- bit2 = BIT(color_prom[i], 5);
- int const g = 0x21 * bit0 + 0x47 * bit1 + 0x97 * bit2;
- // blue component
- bit0 = BIT(color_prom[i], 6);
- bit1 = BIT(color_prom[i], 7);
- int const b = 0x4f * bit0 + 0xa8 * bit1;
-
- palette.set_pen_color(i, rgb_t(r, g, b));
- }
-}
-
-WRITE8_MEMBER(seicross_state::videoram_w)
-{
- m_videoram[offset] = data;
- m_bg_tilemap->mark_tile_dirty(offset);
-}
-
-WRITE8_MEMBER(seicross_state::colorram_w)
-{
- /* bit 5 of the address is not used for color memory. There is just */
- /* 512k of memory; every two consecutive rows share the same memory */
- /* region. */
-
- offset &= 0xffdf;
-
- m_colorram[offset] = data;
- m_colorram[offset + 0x20] = data;
-
- m_bg_tilemap->mark_tile_dirty(offset);
- m_bg_tilemap->mark_tile_dirty(offset + 0x20);
-}
-
-TILE_GET_INFO_MEMBER(seicross_state::get_bg_tile_info)
-{
- int code = m_videoram[tile_index] + ((m_colorram[tile_index] & 0x10) << 4);
- int color = m_colorram[tile_index] & 0x0f;
- int flags = ((m_colorram[tile_index] & 0x40) ? TILE_FLIPX : 0) | ((m_colorram[tile_index] & 0x80) ? TILE_FLIPY : 0);
-
- SET_TILE_INFO_MEMBER(0, code, color, flags);
-}
-
-void seicross_state::video_start()
-{
- m_bg_tilemap = &machine().tilemap().create(
- *m_gfxdecode, tilemap_get_info_delegate(FUNC(seicross_state::get_bg_tile_info),this), TILEMAP_SCAN_ROWS,
- 8, 8, 32, 32);
-
- m_bg_tilemap->set_scroll_cols(32);
-}
-
-void seicross_state::draw_sprites(bitmap_ind16 &bitmap, const rectangle &cliprect )
-{
- int offs;
-
- for (offs = m_spriteram.bytes() - 4; offs >= 0; offs -= 4)
- {
- int x = m_spriteram[offs + 3];
- m_gfxdecode->gfx(1)->transpen(bitmap,cliprect,
- (m_spriteram[offs] & 0x3f) + ((m_spriteram[offs + 1] & 0x10) << 2) + 128,
- m_spriteram[offs + 1] & 0x0f,
- m_spriteram[offs] & 0x40,m_spriteram[offs] & 0x80,
- x,240-m_spriteram[offs + 2],0);
- if(x>0xf0)
- m_gfxdecode->gfx(1)->transpen(bitmap,cliprect,
- (m_spriteram[offs] & 0x3f) + ((m_spriteram[offs + 1] & 0x10) << 2) + 128,
- m_spriteram[offs + 1] & 0x0f,
- m_spriteram[offs] & 0x40,m_spriteram[offs] & 0x80,
- x-256,240-m_spriteram[offs + 2],0);
- }
-
- for (offs = m_spriteram2.bytes() - 4; offs >= 0; offs -= 4)
- {
- int x = m_spriteram2[offs + 3];
- m_gfxdecode->gfx(1)->transpen(bitmap,cliprect,
- (m_spriteram2[offs] & 0x3f) + ((m_spriteram2[offs + 1] & 0x10) << 2),
- m_spriteram2[offs + 1] & 0x0f,
- m_spriteram2[offs] & 0x40,m_spriteram2[offs] & 0x80,
- x,240-m_spriteram2[offs + 2],0);
- if(x>0xf0)
- m_gfxdecode->gfx(1)->transpen(bitmap,cliprect,
- (m_spriteram2[offs] & 0x3f) + ((m_spriteram2[offs + 1] & 0x10) << 2),
- m_spriteram2[offs + 1] & 0x0f,
- m_spriteram2[offs] & 0x40,m_spriteram2[offs] & 0x80,
- x-256,240-m_spriteram2[offs + 2],0);
- }
-}
-
-uint32_t seicross_state::screen_update(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect)
-{
- int col;
-
- for (col = 0; col < 32; col++)
- m_bg_tilemap->set_scrolly(col, m_row_scroll[col]);
-
- m_bg_tilemap->draw(screen, bitmap, cliprect, 0, 0);
- draw_sprites(bitmap, cliprect);
- return 0;
-}