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// license:BSD-3-Clause
// copyright-holders:Bryan McPhail
#include "emu.h"
#include "includes/pcktgal.h"
void pcktgal_state::pcktgal_palette(palette_device &palette) const
{
uint8_t const *const color_prom = memregion("proms")->base();
for (int i = 0; i < palette.entries(); i++)
{
int bit0, bit1, bit2, bit3;
bit0 = BIT(color_prom[i], 0);
bit1 = BIT(color_prom[i], 1);
bit2 = BIT(color_prom[i], 2);
bit3 = BIT(color_prom[i], 3);
int const r = 0x0e * bit0 + 0x1f * bit1 + 0x43 * bit2 + 0x8f * bit3;
bit0 = BIT(color_prom[i], 4);
bit1 = BIT(color_prom[i], 5);
bit2 = BIT(color_prom[i], 6);
bit3 = BIT(color_prom[i], 7);
int const g = 0x0e * bit0 + 0x1f * bit1 + 0x43 * bit2 + 0x8f * bit3;
bit0 = BIT(color_prom[i + palette.entries()], 0);
bit1 = BIT(color_prom[i + palette.entries()], 1);
bit2 = BIT(color_prom[i + palette.entries()], 2);
bit3 = BIT(color_prom[i + palette.entries()], 3);
int const 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_tilegen->get_flip_state();
m_tilegen->set_flip_screen(flip);
m_tilegen->deco_bac06_pf_draw(screen,bitmap,cliprect,TILEMAP_DRAW_OPAQUE, 0x00, 0x00, 0x00, 0x00, 0);
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_tilegen->get_flip_state();
m_tilegen->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_tilegen->deco_bac06_pf_draw_bootleg(screen, bitmap,cliprect,TILEMAP_DRAW_OPAQUE, 0, 2, 0);
draw_sprites(bitmap, cliprect, flip);
return 0;
}
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