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// license:BSD-3-Clause
// copyright-holders:Ernesto Corvi, Roberto Fresca
/***************************************************************************
video.c
Functions to emulate the video hardware of the machine.
***************************************************************************/
#include "emu.h"
#include "includes/truco.h"
PALETTE_INIT_MEMBER(truco_state, truco)
{
int i;
for (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 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_ind16 &bitmap, const rectangle &cliprect)
{
uint8_t *videoram = m_videoram;
uint8_t *vid = videoram;
int x, y;
for( y = 0; y < 192; y++ )
{
for( x = 0; x < 256; x++ )
{
int pixel;
if ( x & 1 )
pixel = vid[x>>1] & 0x0f;
else
pixel = ( vid[x>>1] >> 4 ) & 0x0f;
bitmap.pix16(y, x) = pixel;
}
vid += 0x80;
}
return 0;
}
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