// license:BSD-3-Clause
// copyright-holders:R. Belmont, Phil Stroffolino, Acho A. Tang, Nicola Salmoria
#define MW_VERBOSE 0
/*
* video/mystwarr.c - Konami "Pre-GX" video hardware (here there be dragons)
*
*/
#include "emu.h"
#include "includes/konamigx.h"
#include "includes/mystwarr.h"
// create a decoding buffer to hold decodable tiles so that the ROM test will pass by
// reading the original raw data
void mystwarr_state::decode_tiles()
{
uint8_t *s = memregion("k056832")->base();
int len = memregion("k056832")->bytes();
uint8_t *pFinish = s+len-3;
uint8_t *d;
int gfxnum = m_k056832->get_gfx_num();
m_decoded = std::make_unique<uint8_t[]>(len);
d = m_decoded.get();
// now convert the data into a drawable format so we can decode it
while (s < pFinish)
{
/* convert the whole mess to 5bpp planar in System GX's format
(p3 p1 p2 p0 p5)
(the original ROMs are stored as chunky for the first 4 bits
and the 5th bit is planar, which is undecodable as-is) */
int d0 = ((s[0]&0x80) )|((s[0]&0x08)<<3)|((s[1]&0x80)>>2)|((s[1]&0x08)<<1)|
((s[2]&0x80)>>4)|((s[2]&0x08)>>1)|((s[3]&0x80)>>6)|((s[3]&0x08)>>3);
int d1 = ((s[0]&0x40)<<1)|((s[0]&0x04)<<4)|((s[1]&0x40)>>1)|((s[1]&0x04)<<2)|
((s[2]&0x40)>>3)|((s[2]&0x04) )|((s[3]&0x40)>>5)|((s[3]&0x04)>>2);
int d2 = ((s[0]&0x20)<<2)|((s[0]&0x02)<<5)|((s[1]&0x20) )|((s[1]&0x02)<<3)|
((s[2]&0x20)>>2)|((s[2]&0x02)<<1)|((s[3]&0x20)>>4)|((s[3]&0x02)>>1);
int d3 = ((s[0]&0x10)<<3)|((s[0]&0x01)<<6)|((s[1]&0x10)<<1)|((s[1]&0x01)<<4)|
((s[2]&0x10)>>1)|((s[2]&0x01)<<2)|((s[3]&0x10)>>3)|((s[3]&0x01) );
d[0] = d3;
d[1] = d1;
d[2] = d2;
d[3] = d0;
d[4] = s[4];
s += 5;
d += 5;
}
m_k056832->gfx(gfxnum)->set_source(m_decoded.get());
}
// Mystic Warriors requires tile based blending.
K056832_CB_MEMBER(mystwarr_state::mystwarr_tile_callback)
{
if (layer == 1) {if ((*code & 0xff00) + (*color) == 0x4101) m_cbparam++; else m_cbparam--;} //* water hack (TEMPORARY)
*color = m_layer_colorbase[layer] | (*color >> 1 & 0x1e);
}
// for games with 5bpp tile data
K056832_CB_MEMBER(mystwarr_state::game5bpp_tile_callback)
{
*color = m_layer_colorbase[layer] | (*color >> 1 & 0x1e);
}
// for games with 4bpp tile data
K056832_CB_MEMBER(mystwarr_state::game4bpp_tile_callback)
{
*color = m_layer_colorbase[layer] | (*color >> 2 & 0x0f);
}
K055673_CB_MEMBER(mystwarr_state::mystwarr_sprite_callback)
{
int c = *color;
*color = m_sprite_colorbase | (c & 0x001f);
*priority_mask = c & 0x00f0;
}
K055673_CB_MEMBER(mystwarr_state::metamrph_sprite_callback)
{
int c = *color;
int attr = c;
c = (c & 0x1f) | m_sprite_colorbase;
// Bit8 & 9 are effect attributes. It is not known whether the effects are generated by external logic.
if ((attr & 0x300) != 0x300)
{
*color = c;
*priority_mask = (attr & 0xe0) >> 2;
}
else
{
*color = c | 3<<K055555_MIXSHIFT | K055555_SKIPSHADOW; // reflection?
*priority_mask = 0x1c;
}
}
K055673_CB_MEMBER(mystwarr_state::gaiapols_sprite_callback)
{
int c = *color;
*color = m_sprite_colorbase | (c>>4 & 0x20) | (c & 0x001f);
*priority_mask = c & 0x00e0;
}
K055673_CB_MEMBER(mystwarr_state::martchmp_sprite_callback)
{
int c = *color;
// Bit8 & 9 are effect attributes. It is not known whether the effects are generated by external logic.
if ((c & 0x3ff) == 0x11f)
*color = K055555_FULLSHADOW;
else
*color = m_sprite_colorbase | (c & 0x1f);
if (m_oinprion & 0xf0)
*priority_mask = m_cbparam; // use PCU2 internal priority
else
*priority_mask = c & 0xf0; // use color implied priority
}
TILE_GET_INFO_MEMBER(mystwarr_state::get_gai_936_tile_info)
{
int tileno, colour;
uint8_t *ROM = memregion("gfx4")->base();
uint8_t *dat1 = ROM, *dat2 = ROM + 0x20000, *dat3 = ROM + 0x60000;
tileno = dat3[tile_index] | ((dat2[tile_index]&0x3f)<<8);
if (tile_index & 1)
colour = (dat1[tile_index>>1]&0xf);
else
colour = ((dat1[tile_index>>1]>>4)&0xf);
if (dat2[tile_index] & 0x80) colour |= 0x10;
colour |= m_sub1_colorbase << 4;
SET_TILE_INFO_MEMBER(0, tileno, colour, 0);
}
VIDEO_START_MEMBER(mystwarr_state, gaiapols)
{
m_gametype = 0;
decode_tiles();
konamigx_mixer_init(*m_screen, 0);
m_k056832->set_layer_offs(0, -2+2-1, 0-1);
m_k056832->set_layer_offs(1, 0+2, 0);
m_k056832->set_layer_offs(2, 2+2, 0);
m_k056832->set_layer_offs(3, 3+2, 0);
K053936_wraparound_enable(0, 1);
K053936GP_set_offset(0, -10, 0); // floor tiles in demo loop2 (Elaine vs. boss)
m_ult_936_tilemap = &machine().tilemap().create(*m_gfxdecode, tilemap_get_info_delegate(*this, FUNC(mystwarr_state::get_gai_936_tile_info)), TILEMAP_SCAN_ROWS, 16, 16, 512, 512);
m_ult_936_tilemap->set_transparent_pen(0);
}
TILE_GET_INFO_MEMBER(mystwarr_state::get_ult_936_tile_info)
{
int tileno, colour;
uint8_t *ROM = memregion("gfx4")->base();
uint8_t *dat1 = ROM, *dat2 = ROM + 0x40000;
tileno = dat2[tile_index] | ((dat1[tile_index]&0x1f)<<8);
colour = m_sub1_colorbase;
SET_TILE_INFO_MEMBER(0, tileno, colour, (dat1[tile_index]&0x40) ? TILE_FLIPX : 0);
}
VIDEO_START_MEMBER(mystwarr_state, dadandrn)
{
m_gametype = 1;
decode_tiles();
konamigx_mixer_init(*m_screen, 0);
konamigx_mixer_primode(1);
m_k056832->set_layer_offs(0, -2+4, 0);
m_k056832->set_layer_offs(1, 0+4, 0);
m_k056832->set_layer_offs(2, 2+4, 0);
m_k056832->set_layer_offs(3, 3+4, 0);
K053936_wraparound_enable(0, 1);
K053936GP_set_offset(0, -8, 0); // Brainy's laser
m_ult_936_tilemap = &machine().tilemap().create(*m_gfxdecode, tilemap_get_info_delegate(*this, FUNC(mystwarr_state::get_ult_936_tile_info)), TILEMAP_SCAN_ROWS, 16, 16, 512, 512);
m_ult_936_tilemap->set_transparent_pen(0);
}
VIDEO_START_MEMBER(mystwarr_state, mystwarr)
{
m_gametype = 0;
decode_tiles();
konamigx_mixer_init(*m_screen, 0);
m_k056832->set_layer_offs(0, -2-3, 0);
m_k056832->set_layer_offs(1, 0-3, 0);
m_k056832->set_layer_offs(2, 2-3, 0);
m_k056832->set_layer_offs(3, 3-3, 0);
m_cbparam = 0;
}
VIDEO_START_MEMBER(mystwarr_state, metamrph)
{
m_gametype = 0;
decode_tiles();
konamigx_mixer_init(*m_screen, 0);
// other reference, floor at first boss
m_k056832->set_layer_offs(0, -2+4, 0); // text
m_k056832->set_layer_offs(1, 0+4, 0); // attract sea
m_k056832->set_layer_offs(2, 2+4, 0); // attract red monster in background of sea
m_k056832->set_layer_offs(3, 3+4, 0); // attract sky background to sea
}
VIDEO_START_MEMBER(mystwarr_state, viostorm)
{
m_gametype = 0;
decode_tiles();
konamigx_mixer_init(*m_screen, 0);
m_k056832->set_layer_offs(0, -2+1, 0);
m_k056832->set_layer_offs(1, 0+1, 0);
m_k056832->set_layer_offs(2, 2+1, 0);
m_k056832->set_layer_offs(3, 3+1, 0);
}
VIDEO_START_MEMBER(mystwarr_state, martchmp)
{
m_gametype = 0;
decode_tiles();
konamigx_mixer_init(*m_screen, 0);
m_k056832->set_layer_offs(0, -2-4, 0);
m_k056832->set_layer_offs(1, 0-4, 0);
m_k056832->set_layer_offs(2, 2-4, 0);
m_k056832->set_layer_offs(3, 3-4, 0);
m_k054338->invert_alpha(0);
}
uint32_t mystwarr_state::screen_update_mystwarr(screen_device &screen, bitmap_rgb32 &bitmap, const rectangle &cliprect)
{
int i, old, blendmode=0;
if (m_cbparam<0) m_cbparam=0; else if (m_cbparam>=32) blendmode=(1<<16|GXMIX_BLEND_FORCE)<<2; //* water hack (TEMPORARY)
for (i = 0; i < 4; i++)
{
old = m_layer_colorbase[i];
m_layer_colorbase[i] = m_k055555->K055555_get_palette_index(i)<<4;
if( old != m_layer_colorbase[i] ) m_k056832->mark_plane_dirty(i);
}
m_sprite_colorbase = m_k055555->K055555_get_palette_index(4)<<5;
konamigx_mixer(screen, bitmap, cliprect, nullptr, 0, nullptr, 0, blendmode, nullptr, 0);
return 0;
}
uint32_t mystwarr_state::screen_update_metamrph(screen_device &screen, bitmap_rgb32 &bitmap, const rectangle &cliprect)
{
int i, old;
for (i = 0; i < 4; i++)
{
old = m_layer_colorbase[i];
m_layer_colorbase[i] = m_k055555->K055555_get_palette_index(i)<<4;
if (old != m_layer_colorbase[i]) m_k056832->mark_plane_dirty(i);
}
m_sprite_colorbase = m_k055555->K055555_get_palette_index(4)<<4;
konamigx_mixer(screen, bitmap, cliprect, nullptr, GXSUB_K053250 | GXSUB_4BPP, nullptr, 0, 0, nullptr, 0);
return 0;
}
uint32_t mystwarr_state::screen_update_martchmp(screen_device &screen, bitmap_rgb32 &bitmap, const rectangle &cliprect)
{
int i, old, blendmode;
for (i = 0; i < 4; i++)
{
old = m_layer_colorbase[i];
m_layer_colorbase[i] = m_k055555->K055555_get_palette_index(i)<<4;
if (old != m_layer_colorbase[i]) m_k056832->mark_plane_dirty(i);
}
m_sprite_colorbase = m_k055555->K055555_get_palette_index(4)<<5;
m_cbparam = m_k055555->K055555_read_register(K55_PRIINP_8);
m_oinprion = m_k055555->K055555_read_register(K55_OINPRI_ON);
// not quite right
blendmode = (m_oinprion==0xef && m_k054338->register_r(K338_REG_PBLEND)) ? ((1<<16|GXMIX_BLEND_FORCE)<<2) : 0;
konamigx_mixer(screen, bitmap, cliprect, nullptr, 0, nullptr, 0, blendmode, nullptr, 0);
return 0;
}
WRITE16_MEMBER(mystwarr_state::ddd_053936_enable_w)
{
if (ACCESSING_BITS_8_15)
{
m_roz_enable = data & 0x0100;
m_roz_rombank = (data & 0xc000)>>14;
}
}
WRITE16_MEMBER(mystwarr_state::ddd_053936_clip_w)
{
int old, clip_x, clip_y, size_x, size_y;
int minx, maxx, miny, maxy;
if (offset == 1)
{
if (ACCESSING_BITS_8_15) K053936GP_clip_enable(0, data & 0x0100);
}
else
{
old = m_clip;
COMBINE_DATA(&m_clip);
if (m_clip != old)
{
clip_x = (m_clip & 0x003f) >> 0;
clip_y = (m_clip & 0x0fc0) >> 6;
size_x = (m_clip & 0x3000) >> 12;
size_y = (m_clip & 0xc000) >> 14;
switch (size_x)
{
case 0x3: size_x = 1; break;
case 0x2: size_x = 2; break;
default: size_x = 4; break;
}
switch (size_y)
{
case 0x3: size_y = 1; break;
case 0x2: size_y = 2; break;
default: size_y = 4; break;
}
minx = clip_x << 7;
maxx = ((clip_x + size_x) << 7) - 1;
miny = clip_y << 7;
maxy = ((clip_y + size_y) << 7) - 1;
K053936GP_set_cliprect(0, minx, maxx, miny, maxy);
}
}
}
// reference: 223e5c in gaiapolis (ROMs 34j and 36m)
READ16_MEMBER(mystwarr_state::gai_053936_tilerom_0_r)
{
uint8_t *ROM1 = (uint8_t *)memregion("gfx4")->base();
uint8_t *ROM2 = (uint8_t *)memregion("gfx4")->base();
ROM1 += 0x20000;
ROM2 += 0x20000+0x40000;
return ((ROM1[offset]<<8) | ROM2[offset]);
}
READ16_MEMBER(mystwarr_state::ddd_053936_tilerom_0_r)
{
uint8_t *ROM1 = (uint8_t *)memregion("gfx4")->base();
uint8_t *ROM2 = (uint8_t *)memregion("gfx4")->base();
ROM2 += 0x40000;
return ((ROM1[offset]<<8) | ROM2[offset]);
}
// reference: 223e1a in gaiapolis (ROM 36j)
READ16_MEMBER(mystwarr_state::ddd_053936_tilerom_1_r)
{
uint8_t *ROM = (uint8_t *)memregion("gfx4")->base();
return ROM[offset/2];
}
// reference: 223db0 in gaiapolis (ROMs 32n, 29n, 26n)
READ16_MEMBER(mystwarr_state::gai_053936_tilerom_2_r)
{
uint8_t *ROM = (uint8_t *)memregion("gfx3")->base();
offset += (m_roz_rombank * 0x100000);
return ROM[offset/2]<<8;
}
READ16_MEMBER(mystwarr_state::ddd_053936_tilerom_2_r)
{
uint8_t *ROM = (uint8_t *)memregion("gfx3")->base();
offset += (m_roz_rombank * 0x100000);
return ROM[offset]<<8;
}
uint32_t mystwarr_state::screen_update_dadandrn(screen_device &screen, bitmap_rgb32 &bitmap, const rectangle &cliprect)/* and gaiapols */
{
int i, newbase, dirty, rozmode;
if (m_gametype == 0)
{
m_sprite_colorbase = (m_k055555->K055555_get_palette_index(4)<<4)&0x7f;
rozmode = GXSUB_4BPP;
}
else
{
m_sprite_colorbase = (m_k055555->K055555_get_palette_index(4)<<3)&0x7f;
rozmode = GXSUB_8BPP;
}
if (m_k056832->get_layer_association())
{
for (i=0; i<4; i++)
{
newbase = m_k055555->K055555_get_palette_index(i)<<4;
if (m_layer_colorbase[i] != newbase)
{
m_layer_colorbase[i] = newbase;
m_k056832->mark_plane_dirty(i);
}
}
}
else
{
for (dirty=0, i=0; i<4; i++)
{
newbase = m_k055555->K055555_get_palette_index(i)<<4;
if (m_layer_colorbase[i] != newbase)
{
m_layer_colorbase[i] = newbase;
dirty = 1;
}
}
if (dirty) m_k056832->mark_all_tilemaps_dirty();
}
m_last_psac_colorbase = m_sub1_colorbase;
m_sub1_colorbase = m_k055555->K055555_get_palette_index(5);
if (m_last_psac_colorbase != m_sub1_colorbase)
{
m_ult_936_tilemap->mark_all_dirty();
if (MW_VERBOSE)
popmessage("K053936: PSAC colorbase changed");
}
konamigx_mixer(screen, bitmap, cliprect, (m_roz_enable) ? m_ult_936_tilemap : nullptr, rozmode, nullptr, 0, 0, nullptr, 0);
return 0;
}