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// license:BSD-3-Clause
// copyright-holders:Olivier Galibert
#include "emu.h"
#include "includes/xexex.h"
K053246_CB_MEMBER(xexex_state::sprite_callback)
{
// Xexex doesn't seem to use bit8 and 9 as effect selectors so this should be safe.
// (pdrawgfx() still needs change to fix Elaine's end-game graphics)
int pri = (*color & 0x3e0) >> 4;
if (pri <= m_layerpri[3])
*priority_mask = 0;
else if (pri > m_layerpri[3] && pri <= m_layerpri[2])
*priority_mask = 0xff00;
else if (pri > m_layerpri[2] && pri <= m_layerpri[1])
*priority_mask = 0xff00 | 0xf0f0;
else if (pri > m_layerpri[1] && pri <= m_layerpri[0])
*priority_mask = 0xff00 | 0xf0f0 | 0xcccc;
else
*priority_mask = 0xff00 | 0xf0f0 | 0xcccc | 0xaaaa;
*color = m_sprite_colorbase | (*color & 0x001f);
}
K056832_CB_MEMBER(xexex_state::tile_callback)
{
*color = m_layer_colorbase[layer] | (*color >> 2 & 0x0f);
}
void xexex_state::video_start()
{
assert(m_screen->format() == BITMAP_FORMAT_RGB32);
m_cur_alpha = 0;
// Xexex has relative plane offsets of -2,2,4,6 vs. -2,0,2,3 in MW and GX.
m_k056832->set_layer_offs(0, -2, 16);
m_k056832->set_layer_offs(1, 2, 16);
m_k056832->set_layer_offs(2, 4, 16);
m_k056832->set_layer_offs(3, 6, 16);
}
uint32_t xexex_state::screen_update_xexex(screen_device &screen, bitmap_rgb32 &bitmap, const rectangle &cliprect)
{
static const int K053251_CI[4] = { k053251_device::CI1, k053251_device::CI2, k053251_device::CI3, k053251_device::CI4 };
int layer[4];
int bg_colorbase, new_colorbase, plane, alpha;
m_sprite_colorbase = m_k053251->get_palette_index(k053251_device::CI0);
bg_colorbase = m_k053251->get_palette_index(k053251_device::CI1);
m_layer_colorbase[0] = 0x70;
for (plane = 1; plane < 4; plane++)
{
new_colorbase = m_k053251->get_palette_index(K053251_CI[plane]);
if (m_layer_colorbase[plane] != new_colorbase)
{
m_layer_colorbase[plane] = new_colorbase;
m_k056832->mark_plane_dirty( plane);
}
}
layer[0] = 1;
m_layerpri[0] = m_k053251->get_priority(k053251_device::CI2);
layer[1] = 2;
m_layerpri[1] = m_k053251->get_priority(k053251_device::CI3);
layer[2] = 3;
m_layerpri[2] = m_k053251->get_priority(k053251_device::CI4);
layer[3] = -1;
m_layerpri[3] = m_k053251->get_priority(k053251_device::CI1);
konami_sortlayers4(layer, m_layerpri);
m_k054338->update_all_shadows(0, *m_palette);
m_k054338->fill_solid_bg(bitmap, cliprect);
screen.priority().fill(0, cliprect);
for (plane = 0; plane < 4; plane++)
{
if (layer[plane] < 0)
{
m_k053250->draw(bitmap, cliprect, bg_colorbase, 0, screen.priority(), 1 << plane);
}
else if (!m_cur_alpha || layer[plane] != 1)
{
m_k056832->tilemap_draw(screen, bitmap, cliprect, layer[plane], 0, 1 << plane);
}
}
m_k053246->k053247_sprites_draw( bitmap, cliprect);
if (m_cur_alpha)
{
alpha = m_k054338->set_alpha_level(1);
if (alpha > 0)
{
m_k056832->tilemap_draw(screen, bitmap, cliprect, 1, TILEMAP_DRAW_ALPHA(alpha), 0);
}
}
m_k056832->tilemap_draw(screen, bitmap, cliprect, 0, 0, 0);
return 0;
}
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