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-rw-r--r--src/mame/video/ironhors.cpp349
1 files changed, 0 insertions, 349 deletions
diff --git a/src/mame/video/ironhors.cpp b/src/mame/video/ironhors.cpp
deleted file mode 100644
index fe8867df9d8..00000000000
--- a/src/mame/video/ironhors.cpp
+++ /dev/null
@@ -1,349 +0,0 @@
-// license:BSD-3-Clause
-// copyright-holders:Mirko Buffoni
-/***************************************************************************
-
- ironhors.c
-
- Functions to emulate the video hardware of the machine.
-
-***************************************************************************/
-
-#include "emu.h"
-#include "video/resnet.h"
-#include "includes/ironhors.h"
-
-/***************************************************************************
-
- Convert the color PROMs into a more useable format.
-
-***************************************************************************/
-
-void ironhors_state::ironhors_palette(palette_device &palette) const
-{
- const uint8_t *color_prom = memregion("proms")->base();
- static constexpr int resistances[4] = { 2000, 1000, 470, 220 };
-
- // compute the color output resistor weights
- double rweights[4], gweights[4], bweights[4];
- compute_resistor_weights(0, 255, -1.0,
- 4, resistances, rweights, 1000, 0,
- 4, resistances, gweights, 1000, 0,
- 4, resistances, bweights, 1000, 0);
-
- // create a lookup table for the palette
- for (int i = 0; i < 0x100; i++)
- {
- int bit0, bit1, bit2, bit3;
-
- // red component
- bit0 = BIT(color_prom[i | 0x000], 0);
- bit1 = BIT(color_prom[i | 0x000], 1);
- bit2 = BIT(color_prom[i | 0x000], 2);
- bit3 = BIT(color_prom[i | 0x000], 3);
- int const r = combine_weights(rweights, bit0, bit1, bit2, bit3);
-
- // green component
- bit0 = BIT(color_prom[i | 0x100], 0);
- bit1 = BIT(color_prom[i | 0x100], 1);
- bit2 = BIT(color_prom[i | 0x100], 2);
- bit3 = BIT(color_prom[i | 0x100], 3);
- int const g = combine_weights(gweights, bit0, bit1, bit2, bit3);
-
- // blue component
- bit0 = BIT(color_prom[i | 0x200], 0);
- bit1 = BIT(color_prom[i | 0x200], 1);
- bit2 = BIT(color_prom[i | 0x200], 2);
- bit3 = BIT(color_prom[i | 0x200], 3);
- int const b = combine_weights(bweights, bit0, bit1, bit2, bit3);
-
- palette.set_indirect_color(i, rgb_t(r, g, b));
- }
-
- // color_prom now points to the beginning of the lookup table
- color_prom += 0x300;
-
- // characters use colors 0x10-0x1f of each 0x20 color bank, while sprites use colors 0-0x0f
- for (int i = 0; i < 0x200; i++)
- {
- for (int j = 0; j < 8; j++)
- {
- uint8_t const ctabentry = (j << 5) | ((~i & 0x100) >> 4) | (color_prom[i] & 0x0f);
- palette.set_pen_indirect(((i & 0x100) << 3) | (j << 8) | (i & 0xff), ctabentry);
- }
- }
-}
-
-void ironhors_state::videoram_w(offs_t offset, uint8_t data)
-{
- m_videoram[offset] = data;
- m_bg_tilemap->mark_tile_dirty(offset);
-}
-
-void ironhors_state::colorram_w(offs_t offset, uint8_t data)
-{
- m_colorram[offset] = data;
- m_bg_tilemap->mark_tile_dirty(offset);
-}
-
-void ironhors_state::charbank_w(uint8_t data)
-{
- if (m_charbank != (data & 0x03))
- {
- m_charbank = data & 0x03;
- machine().tilemap().mark_all_dirty();
- }
-
- m_spriterambank = data & 0x08;
-
- /* other bits unknown */
-}
-
-void ironhors_state::palettebank_w(uint8_t data)
-{
- if (m_palettebank != (data & 0x07))
- {
- m_palettebank = data & 0x07;
- machine().tilemap().mark_all_dirty();
- }
-
- machine().bookkeeping().coin_counter_w(0, data & 0x10);
- machine().bookkeeping().coin_counter_w(1, data & 0x20);
-
- /* bit 6 unknown - set after game over */
-
- if (data & 0x88)
- popmessage("palettebank_w %02x",data);
-}
-
-void ironhors_state::flipscreen_w(uint8_t data)
-{
- if (flip_screen() != (~data & 0x08))
- {
- flip_screen_set(~data & 0x08);
- machine().tilemap().mark_all_dirty();
- }
-
- /* other bits are used too, but unknown */
-}
-
-TILE_GET_INFO_MEMBER(ironhors_state::get_bg_tile_info)
-{
- int code = m_videoram[tile_index] + ((m_colorram[tile_index] & 0x40) << 2) +
- ((m_colorram[tile_index] & 0x20) << 4) + (m_charbank << 10);
- int color = (m_colorram[tile_index] & 0x0f) + 16 * m_palettebank;
- int flags = ((m_colorram[tile_index] & 0x10) ? TILE_FLIPX : 0) |
- ((m_colorram[tile_index] & 0x20) ? TILE_FLIPY : 0);
-
- tileinfo.set(0, code, color, flags);
-}
-
-void ironhors_state::video_start()
-{
- m_bg_tilemap = &machine().tilemap().create(*m_gfxdecode, tilemap_get_info_delegate(*this, FUNC(ironhors_state::get_bg_tile_info)), TILEMAP_SCAN_ROWS, 8, 8, 32, 32);
-
- m_bg_tilemap->set_scroll_rows(32);
-}
-
-void ironhors_state::draw_sprites( bitmap_ind16 &bitmap, const rectangle &cliprect )
-{
- int offs;
- uint8_t *sr;
-
- if (m_spriterambank != 0)
- sr = m_spriteram;
- else
- sr = m_spriteram2;
-
- for (offs = 0; offs < m_spriteram.bytes(); offs += 5)
- {
- int sx = sr[offs + 3];
- int sy = sr[offs + 2];
- int flipx = sr[offs + 4] & 0x20;
- int flipy = sr[offs + 4] & 0x40;
- int code = (sr[offs] << 2) + ((sr[offs + 1] & 0x03) << 10) + ((sr[offs + 1] & 0x0c) >> 2);
- int color = ((sr[offs + 1] & 0xf0) >> 4) + 16 * m_palettebank;
- // int mod = flip_screen() ? -8 : 8;
-
- if (flip_screen())
- {
- sx = 240 - sx;
- sy = 240 - sy;
- flipx = !flipx;
- flipy = !flipy;
- }
-
- switch (sr[offs + 4] & 0x0c)
- {
- case 0x00: /* 16x16 */
- m_gfxdecode->gfx(1)->transpen(bitmap,cliprect,
- code/4,
- color,
- flipx,flipy,
- sx,sy,0);
- break;
-
- case 0x04: /* 16x8 */
- {
- if (flip_screen()) sy += 8; // this fixes the train wheels' position
-
- m_gfxdecode->gfx(2)->transpen(bitmap,cliprect,
- code & ~1,
- color,
- flipx,flipy,
- flipx?sx+8:sx,sy,0);
- m_gfxdecode->gfx(2)->transpen(bitmap,cliprect,
- code | 1,
- color,
- flipx,flipy,
- flipx?sx:sx+8,sy,0);
- }
- break;
-
- case 0x08: /* 8x16 */
- {
- m_gfxdecode->gfx(2)->transpen(bitmap,cliprect,
- code & ~2,
- color,
- flipx,flipy,
- sx,flipy?sy+8:sy,0);
- m_gfxdecode->gfx(2)->transpen(bitmap,cliprect,
- code | 2,
- color,
- flipx,flipy,
- sx,flipy?sy:sy+8,0);
- }
- break;
-
- case 0x0c: /* 8x8 */
- {
- m_gfxdecode->gfx(2)->transpen(bitmap,cliprect,
- code,
- color,
- flipx,flipy,
- sx,sy,0);
- }
- break;
- }
- }
-}
-
-uint32_t ironhors_state::screen_update(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect)
-{
- int row;
-
- for (row = 0; row < 32; row++)
- m_bg_tilemap->set_scrollx(row, m_scroll[row]);
-
- m_bg_tilemap->draw(screen, bitmap, cliprect, 0, 0);
- draw_sprites(bitmap, cliprect);
- return 0;
-}
-
-TILE_GET_INFO_MEMBER(ironhors_state::farwest_get_bg_tile_info)
-{
- int code = m_videoram[tile_index] + ((m_colorram[tile_index] & 0x40) << 2) +
- ((m_colorram[tile_index] & 0x20) << 4) + (m_charbank << 10);
- int color = (m_colorram[tile_index] & 0x0f) + 16 * m_palettebank;
- int flags = 0;//((m_colorram[tile_index] & 0x10) ? TILE_FLIPX : 0) | ((m_colorram[tile_index] & 0x20) ? TILE_FLIPY : 0);
-
- tileinfo.set(0, code, color, flags);
-}
-
-VIDEO_START_MEMBER(ironhors_state,farwest)
-{
- m_bg_tilemap = &machine().tilemap().create(*m_gfxdecode, tilemap_get_info_delegate(*this, FUNC(ironhors_state::farwest_get_bg_tile_info)), TILEMAP_SCAN_ROWS, 8, 8, 32, 32);
-
- m_bg_tilemap->set_scroll_rows(32);
-}
-
-void ironhors_state::farwest_draw_sprites( bitmap_ind16 &bitmap, const rectangle &cliprect )
-{
- int offs;
- uint8_t *sr = m_spriteram2;
- uint8_t *sr2 = m_spriteram;
-
- for (offs = 0; offs < m_spriteram.bytes(); offs += 4)
- {
- int sx = sr[offs + 2];
- int sy = sr[offs + 1];
- int flipx = sr[offs + 3] & 0x20;
- int flipy = sr[offs + 3] & 0x40;
- int code = (sr[offs] << 2) + ((sr2[offs] & 0x03) << 10) + ((sr2[offs] & 0x0c) >> 2);
- int color = ((sr2[offs] & 0xf0) >> 4) + 16 * m_palettebank;
-
- // int mod = flip_screen() ? -8 : 8;
-
-// if (flip_screen())
- {
- // sx = 240 - sx;
- sy = 240 - sy;
- // flipx = !flipx;
- // flipy = !flipy;
- }
-
- switch (sr[offs + 3] & 0x0c)
- {
- case 0x00: /* 16x16 */
- m_gfxdecode->gfx(1)->transpen(bitmap,cliprect,
- code/4,
- color,
- flipx,flipy,
- sx,sy,0);
- break;
-
- case 0x04: /* 16x8 */
- {
- if (flip_screen()) sy += 8; // this fixes the train wheels' position
-
- m_gfxdecode->gfx(2)->transpen(bitmap,cliprect,
- code & ~1,
- color,
- flipx,flipy,
- flipx?sx+8:sx,sy,0);
- m_gfxdecode->gfx(2)->transpen(bitmap,cliprect,
- code | 1,
- color,
- flipx,flipy,
- flipx?sx:sx+8,sy,0);
- }
- break;
-
- case 0x08: /* 8x16 */
- {
- m_gfxdecode->gfx(2)->transpen(bitmap,cliprect,
- code & ~2,
- color,
- flipx,flipy,
- sx,flipy?sy+8:sy,0);
- m_gfxdecode->gfx(2)->transpen(bitmap,cliprect,
- code | 2,
- color,
- flipx,flipy,
- sx,flipy?sy:sy+8,0);
- }
- break;
-
- case 0x0c: /* 8x8 */
- {
- m_gfxdecode->gfx(2)->transpen(bitmap,cliprect,
- code,
- color,
- flipx,flipy,
- sx,sy,0);
- }
- break;
- }
- }
-}
-
-uint32_t ironhors_state::screen_update_farwest(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect)
-{
- int row;
-
- for (row = 0; row < 32; row++)
- m_bg_tilemap->set_scrollx(row, m_scroll[row]);
-
- m_bg_tilemap->draw(screen, bitmap, cliprect, 0, 0);
- farwest_draw_sprites(bitmap, cliprect);
- return 0;
-}