summaryrefslogtreecommitdiffstatshomepage
path: root/src/mame/comad/galspnbl_v.cpp
diff options
context:
space:
mode:
Diffstat (limited to 'src/mame/comad/galspnbl_v.cpp')
-rw-r--r--src/mame/comad/galspnbl_v.cpp98
1 files changed, 0 insertions, 98 deletions
diff --git a/src/mame/comad/galspnbl_v.cpp b/src/mame/comad/galspnbl_v.cpp
deleted file mode 100644
index b15505c1714..00000000000
--- a/src/mame/comad/galspnbl_v.cpp
+++ /dev/null
@@ -1,98 +0,0 @@
-// license:BSD-3-Clause
-// copyright-holders:Nicola Salmoria
-#include "emu.h"
-#include "galspnbl.h"
-
-
-void galspnbl_state::galspnbl_palette(palette_device &palette) const
-{
- // initialize 555 RGB lookup
- for (int i = 0; i < 32768; i++)
- palette.set_pen_color(i + 1024, pal5bit(i >> 5), pal5bit(i >> 10), pal5bit(i >> 0));
-}
-
-
-
-void galspnbl_state::draw_background( bitmap_ind16 &bitmap, const rectangle &cliprect )
-{
-// int const screenscroll = 4 - (m_scroll[0] & 0xff);
-
- for (offs_t offs = 0; offs < 0x20000; offs++)
- {
- int const y = offs >> 9;
- int const x = offs & 0x1ff;
-
- bitmap.pix(y, x) = 1024 + (m_bgvideoram[offs] >> 1);
- }
-}
-
-void galspnbl_state::video_start()
-{
- /* allocate bitmaps */
- m_screen->register_screen_bitmap(m_sprite_bitmap);
-}
-
-void galspnbl_state::mix_sprite_layer(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect, int pri)
-{
- for (int y = cliprect.top(); y <= cliprect.bottom(); y++)
- {
- uint16_t *const dd = &bitmap.pix(y);
- uint16_t const *const sd2 = &m_sprite_bitmap.pix(y);
-
- for (int x = cliprect.left(); x <= cliprect.right(); x++)
- {
- uint16_t sprpixel = (sd2[x]);
- //uint16_t sprpri = (sprpixel >> 8) & 3;
- uint16_t sprpri = (sprpixel >> 9) & 1; // only upper priority bit matters on the bootleg hw?
-
- sprpixel &= 0xff;
-
- if (sprpixel & 0xf)
- {
- if (sprpri == pri)
- dd[x] = sprpixel;
- }
-
- // uint16_t sprbln = (sprpixel >> 10) & 1; // we handle 'blending' from the original as a simple on/off flicker in the bootleg sprite function, I don't think the bootleg hw can blend
- }
- }
-}
-
-uint32_t galspnbl_state::screen_update_galspnbl(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect)
-{
- int offs;
- m_sprite_bitmap.fill(0, cliprect);
- m_sprgen->gaiden_draw_sprites(screen, m_gfxdecode->gfx(1), cliprect, m_spriteram, 0, 0, flip_screen(), m_sprite_bitmap);
-
-
- draw_background(bitmap, cliprect);
-
- mix_sprite_layer(screen, bitmap, cliprect, 0);
-
- for (offs = 0; offs < 0x1000 / 2; offs++)
- {
- int sx, sy, code, attr, color;
-
- code = m_videoram[offs];
- attr = m_colorram[offs];
- color = (attr & 0x00f0) >> 4;
- sx = offs % 64;
- sy = offs / 64;
-
- /* What is this? A priority/half transparency marker? */ // leftover blend flags from original spbactn game
- if (!(attr & 0x0008))
- {
- m_gfxdecode->gfx(0)->transpen(bitmap,cliprect,
- code,
- color,
- 0,0,
-// 16*sx + screenscroll,8*sy,
- 16*sx,8*sy,0);
- }
- }
-
- mix_sprite_layer(screen, bitmap, cliprect, 1);
-
-
- return 0;
-}