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// license:BSD-3-Clause
// copyright-holders:Bryan McPhail
#include "emu.h"
#include "includes/pcktgal.h"
PALETTE_INIT_MEMBER(pcktgal_state, pcktgal)
{
const uint8_t *color_prom = memregion("proms")->base();
for (int i = 0;i < palette.entries();i++)
{
int bit0,bit1,bit2,bit3,r,g,b;
bit0 = (color_prom[i] >> 0) & 0x01;
bit1 = (color_prom[i] >> 1) & 0x01;
bit2 = (color_prom[i] >> 2) & 0x01;
bit3 = (color_prom[i] >> 3) & 0x01;
r = 0x0e * bit0 + 0x1f * bit1 + 0x43 * bit2 + 0x8f * bit3;
bit0 = (color_prom[i] >> 4) & 0x01;
bit1 = (color_prom[i] >> 5) & 0x01;
bit2 = (color_prom[i] >> 6) & 0x01;
bit3 = (color_prom[i] >> 7) & 0x01;
g = 0x0e * bit0 + 0x1f * bit1 + 0x43 * bit2 + 0x8f * bit3;
bit0 = (color_prom[i + palette.entries()] >> 0) & 0x01;
bit1 = (color_prom[i + palette.entries()] >> 1) & 0x01;
bit2 = (color_prom[i + palette.entries()] >> 2) & 0x01;
bit3 = (color_prom[i + palette.entries()] >> 3) & 0x01;
b = 0x0e * bit0 + 0x1f * bit1 + 0x43 * bit2 + 0x8f * bit3;
palette.set_pen_color(i,rgb_t(r,g,b));
}
}
void pcktgal_state::draw_sprites(bitmap_ind16 &bitmap, const rectangle &cliprect, bool flip_screen)
{
for (int offs = 0;offs < m_spriteram.bytes();offs += 4)
{
if (m_spriteram[offs] != 0xf8)
{
int sx,sy,flipx,flipy;
sx = 240 - m_spriteram[offs+2];
sy = 240 - m_spriteram[offs];
flipx = m_spriteram[offs+1] & 0x04;
flipy = m_spriteram[offs+1] & 0x02;
if (flip_screen) {
sx=240-sx;
sy=240-sy;
if (flipx) flipx=0; else flipx=1;
if (flipy) flipy=0; else flipy=1;
}
m_gfxdecode->gfx(1)->transpen(bitmap,cliprect,
m_spriteram[offs+3] + ((m_spriteram[offs+1] & 1) << 8),
(m_spriteram[offs+1] & 0x70) >> 4,
flipx,flipy,
sx,sy,0);
}
}
}
uint32_t pcktgal_state::screen_update_pcktgal(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect)
{
bool flip = m_tilegen1->get_flip_state();
m_tilegen1->set_flip_screen(flip);
m_tilegen1->deco_bac06_pf_draw(bitmap,cliprect,TILEMAP_DRAW_OPAQUE, 0x00, 0x00, 0x00, 0x00);
draw_sprites(bitmap, cliprect, flip);
return 0;
}
uint32_t pcktgal_state::screen_update_pcktgalb(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect)
{
bool flip = m_tilegen1->get_flip_state();
m_tilegen1->set_flip_screen(flip);
// the bootleg doesn't properly set the tilemap registers, because it's on non-original hardware, which probably doesn't have the flexible tilemaps.
m_tilegen1->deco_bac06_pf_draw_bootleg(bitmap,cliprect,TILEMAP_DRAW_OPAQUE, 0, 2);
draw_sprites(bitmap, cliprect, flip);
return 0;
}
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