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// license:BSD-3-Clause
// copyright-holders:Ernesto Corvi, Roberto Fresca
/***************************************************************************
Truco-Tron
Functions to emulate the video hardware of the machine.
***************************************************************************/
#include "emu.h"
#include "includes/truco.h"
void truco_state::truco_palette(palette_device &palette) const
{
for (int i = 0; i < palette.entries(); i++)
{
int r = (i & 0x8) ? 0xff : 0x00;
int g = (i & 0x4) ? 0xff : 0x00;
int b = (i & 0x2) ? 0xff : 0x00;
int const dim = (i & 0x1);
if (dim)
{
r >>= 1;
g >>= 1;
b >>= 1;
}
palette.set_pen_color(i, rgb_t(r, g, b));
}
}
uint32_t truco_state::screen_update(screen_device &screen, bitmap_rgb32 &bitmap, const rectangle &cliprect)
{
uint8_t const *videoram = m_videoram;
for (int y = 0; y < 192; y++)
{
for (int x = 0; x < 256; x++)
{
int const pixel = (videoram[x >> 1] >> ((x & 1) ? 0 : 4)) & 0x0f;
bitmap.pix(y, x) = m_palette->pen(pixel);
}
videoram += 0x80;
}
return 0;
}
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