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AmigActive 10
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AACD 10.iso
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AACD
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vidhrdw
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skydiver.c
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C/C++ Source or Header
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2000-04-23
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3KB
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138 lines
/***************************************************************************
vidhrdw.c
Functions to emulate the video hardware of the machine.
***************************************************************************/
#include "driver.h"
#include "vidhrdw/generic.h"
static int skydiver_lamps[8];
static int skydiver_width = 0;
WRITE_HANDLER( skydiver_width_w )
{
skydiver_width = offset;
logerror("width: %02x\n", data);
}
WRITE_HANDLER( skydiver_sk_lamps_w )
{
switch (offset)
{
case 0: skydiver_lamps[0] = 0; break;
case 1: skydiver_lamps[0] = 1; break; /* S */
case 2: skydiver_lamps[1] = 0; break;
case 3: skydiver_lamps[1] = 1; break; /* K */
}
}
WRITE_HANDLER( skydiver_yd_lamps_w )
{
switch (offset)
{
case 0: skydiver_lamps[2] = 0; break;
case 1: skydiver_lamps[2] = 1; break; /* Y */
case 2: skydiver_lamps[3] = 0; break;
case 3: skydiver_lamps[3] = 1; break; /* D */
}
}
WRITE_HANDLER( skydiver_iver_lamps_w )
{
switch (offset)
{
case 0: skydiver_lamps[4] = 0; break;
case 1: skydiver_lamps[4] = 1; break; /* I */
case 2: skydiver_lamps[5] = 0; break;
case 3: skydiver_lamps[5] = 1; break; /* V */
case 4: skydiver_lamps[6] = 0; break;
case 5: skydiver_lamps[6] = 1; break; /* E */
case 6: skydiver_lamps[7] = 0; break;
case 7: skydiver_lamps[7] = 1; break; /* R */
}
}
/***************************************************************************
Draw the game screen in the given osd_bitmap.
Do NOT call osd_update_display() from this function, it will be called by
the main emulation engine.
***************************************************************************/
void skydiver_vh_screenrefresh(struct osd_bitmap *bitmap,int full_refresh)
{
int offs;
int pic;
/* for every character in the Video RAM, check if it has been modified */
/* since last time and update it accordingly. */
for (offs = videoram_size - 1;offs >= 0;offs--)
{
if (dirtybuffer[offs])
{
int charcode;
int color;
int sx,sy;
dirtybuffer[offs]=0;
charcode = videoram[offs] & 0x3F;
color = (videoram[offs] & 0xc0) >> 6;
sx = 8 * (offs % 32);
sy = 8 * (offs / 32);
drawgfx(tmpbitmap,Machine->gfx[0],
charcode, color,
0,0,sx,sy,
&Machine->drv->visible_area,TRANSPARENCY_NONE,0);
}
}
/* copy the character mapped graphics */
copybitmap(bitmap,tmpbitmap,0,0,0,0,&Machine->drv->visible_area,TRANSPARENCY_NONE,0);
/* Draw "SKYDIVER" lights? */
{
int light;
for (light = 0; light < 8; light++)
{
char *text = "SKYDIVER";
drawgfx(bitmap,Machine->gfx[0],
text[light], skydiver_lamps[light] + 4,
0,0,light*8,28*8,
&Machine->drv->visible_area,TRANSPARENCY_NONE,0);
}
}
/* Draw each one of our four motion objects */
for (pic=3;pic>=0;pic--)
{
int sx,sy;
int charcode;
int xflip, yflip;
int color;
sx = 29*8 - spriteram[pic];
sy = 30*8 - spriteram[pic*2 + 8];
charcode = spriteram[pic*2 + 9];
xflip = (charcode & 0x10) >> 4;
yflip = (charcode & 0x08) >> 3;
charcode = (charcode & 0x07) | ((charcode & 0x60) >> 2);
color = pic & 0x01;
drawgfx(bitmap,Machine->gfx[1+(charcode >= 0x10)],
charcode, color,
xflip,yflip,sx,sy,
&Machine->drv->visible_area,TRANSPARENCY_PEN,0);
}
}