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-rw-r--r--src/mame/video/sonson.cpp174
1 files changed, 0 insertions, 174 deletions
diff --git a/src/mame/video/sonson.cpp b/src/mame/video/sonson.cpp
deleted file mode 100644
index f77f557e669..00000000000
--- a/src/mame/video/sonson.cpp
+++ /dev/null
@@ -1,174 +0,0 @@
-// license:BSD-3-Clause
-// copyright-holders:Mirko Buffoni
-/***************************************************************************
-
- video.c
-
- Functions to emulate the video hardware of the machine.
-
-***************************************************************************/
-
-#include "emu.h"
-#include "includes/sonson.h"
-
-/***************************************************************************
-
- Convert the color PROMs into a more useable format.
-
- Son Son has two 32x8 palette PROMs and two 256x4 lookup table PROMs (one
- for characters, one for sprites).
- The palette PROMs are connected to the RGB output this way:
-
- I don't know the exact values of the resistors between the PROMs and the
- RGB output. I assumed these values (the same as Commando)
- bit 7 -- 220 ohm resistor -- GREEN
- -- 470 ohm resistor -- GREEN
- -- 1 kohm resistor -- GREEN
- -- 2.2kohm resistor -- GREEN
- -- 220 ohm resistor -- BLUE
- -- 470 ohm resistor -- BLUE
- -- 1 kohm resistor -- BLUE
- bit 0 -- 2.2kohm resistor -- BLUE
-
- bit 7 -- unused
- -- unused
- -- unused
- -- unused
- -- 220 ohm resistor -- RED
- -- 470 ohm resistor -- RED
- -- 1 kohm resistor -- RED
- bit 0 -- 2.2kohm resistor -- RED
-
-***************************************************************************/
-
-void sonson_state::sonson_palette(palette_device &palette) const
-{
- const uint8_t *color_prom = memregion("proms")->base();
-
- // create a lookup table for the palette
- for (int i = 0; i < 0x20; i++)
- {
- int bit0, bit1, bit2, bit3;
-
- // red component
- bit0 = (color_prom[i + 0x20] >> 0) & 0x01;
- bit1 = (color_prom[i + 0x20] >> 1) & 0x01;
- bit2 = (color_prom[i + 0x20] >> 2) & 0x01;
- bit3 = (color_prom[i + 0x20] >> 3) & 0x01;
- int const r = 0x0e * bit0 + 0x1f * bit1 + 0x43 * bit2 + 0x8f * bit3;
-
- // green component
- bit0 = (color_prom[i + 0x00] >> 4) & 0x01;
- bit1 = (color_prom[i + 0x00] >> 5) & 0x01;
- bit2 = (color_prom[i + 0x00] >> 6) & 0x01;
- bit3 = (color_prom[i + 0x00] >> 7) & 0x01;
- int const g = 0x0e * bit0 + 0x1f * bit1 + 0x43 * bit2 + 0x8f * bit3;
-
- // blue component
- bit0 = (color_prom[i + 0x00] >> 0) & 0x01;
- bit1 = (color_prom[i + 0x00] >> 1) & 0x01;
- bit2 = (color_prom[i + 0x00] >> 2) & 0x01;
- bit3 = (color_prom[i + 0x00] >> 3) & 0x01;
- int const b = 0x0e * bit0 + 0x1f * bit1 + 0x43 * bit2 + 0x8f * bit3;
-
- palette.set_indirect_color(i, rgb_t(r, g, b));
- }
-
- // color_prom now points to the beginning of the lookup table
- color_prom += 0x40;
-
- // characters use colors 0-0x0f
- for (int i = 0; i < 0x100; i++)
- {
- uint8_t const ctabentry = color_prom[i] & 0x0f;
- palette.set_pen_indirect(i, ctabentry);
- }
-
- // sprites use colors 0x10-0x1f
- for (int i = 0x100; i < 0x200; i++)
- {
- uint8_t const ctabentry = (color_prom[i] & 0x0f) | 0x10;
- palette.set_pen_indirect(i, ctabentry);
- }
-}
-
-WRITE8_MEMBER(sonson_state::sonson_videoram_w)
-{
- m_videoram[offset] = data;
- m_bg_tilemap->mark_tile_dirty(offset);
-}
-
-WRITE8_MEMBER(sonson_state::sonson_colorram_w)
-{
- m_colorram[offset] = data;
- m_bg_tilemap->mark_tile_dirty(offset);
-}
-
-WRITE8_MEMBER(sonson_state::sonson_scrollx_w)
-{
- int row;
-
- for (row = 5; row < 32; row++)
- m_bg_tilemap->set_scrollx(row, data);
-}
-
-WRITE_LINE_MEMBER(sonson_state::flipscreen_w)
-{
- flip_screen_set(!state);
-}
-
-TILE_GET_INFO_MEMBER(sonson_state::get_bg_tile_info)
-{
- int attr = m_colorram[tile_index];
- int code = m_videoram[tile_index] + 256 * (attr & 0x03);
- int color = attr >> 2;
-
- SET_TILE_INFO_MEMBER(0, code, color, 0);
-}
-
-void sonson_state::video_start()
-{
- m_bg_tilemap = &machine().tilemap().create(*m_gfxdecode, tilemap_get_info_delegate(FUNC(sonson_state::get_bg_tile_info),this), TILEMAP_SCAN_ROWS, 8, 8, 32, 32);
- m_bg_tilemap->set_scroll_rows(32);
-}
-
-void sonson_state::draw_sprites( bitmap_ind16 &bitmap, const rectangle &cliprect )
-{
- uint8_t *spriteram = m_spriteram;
- int offs;
-
- for (offs = m_spriteram.bytes() - 4; offs >= 0; offs -= 4)
- {
- int code = spriteram[offs + 2] + ((spriteram[offs + 1] & 0x20) << 3);
- int color = spriteram[offs + 1] & 0x1f;
- int flipx = ~spriteram[offs + 1] & 0x40;
- int flipy = ~spriteram[offs + 1] & 0x80;
- int sx = spriteram[offs + 3];
- int sy = spriteram[offs + 0];
-
- if (flip_screen())
- {
- sx = 240 - sx;
- sy = 240 - sy;
- flipx = !flipx;
- flipy = !flipy;
- }
-
-
- m_gfxdecode->gfx(1)->transpen(bitmap,cliprect,
- code, color,
- flipx, flipy,
- sx, sy, 0);
-
- /* wrap-around */
- m_gfxdecode->gfx(1)->transpen(bitmap,cliprect, code, color, flipx, flipy, sx - 256, sy, 0);
- m_gfxdecode->gfx(1)->transpen(bitmap,cliprect, code, color, flipx, flipy, sx, sy - 256, 0);
- }
-}
-
-uint32_t sonson_state::screen_update_sonson(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect)
-{
- m_bg_tilemap->draw(screen, bitmap, cliprect, 0, 0);
- draw_sprites(bitmap, cliprect);
- return 0;
-}