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(MESS) pcfx.c: Start displaying some things from huc6270-b; doesn't look correct yet though. (nw)

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This commit is contained in:
Wilbert Pol 2012-08-22 20:10:44 +00:00
parent 884fcefa29
commit 6f13297dcf
2 changed files with 43 additions and 2 deletions
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42
src/emu/video/huc6261.c
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@ -41,9 +41,47 @@ void huc6261_device::device_config_complete()
huc6261_device::huc6261_device(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock)
: device_t(mconfig, HUC6261, "HuC6261", tag, owner, clock)
{
// Set up UV lookup table
for ( int ur = 0; ur < 256; ur++ )
{
for ( int vr = 0; vr < 256; vr++ )
{
INT32 r,g,b;
INT32 u = ur - 128;
INT32 v = vr - 128;
r = - 1.13983 * v;
g = -0.35465 * u - 0.58060 * v;
b = 2.03211 * u;
m_uv_lookup[ ( ur << 8 ) | vr ][0] = r;
m_uv_lookup[ ( ur << 8 ) | vr ][1] = g;
m_uv_lookup[ ( ur << 8 ) | vr ][2] = b;
}
}
}
inline UINT32 huc6261_device::yuv2rgb(UINT32 yuv)
{
INT32 r, g, b;
UINT8 y = yuv >> 16;
UINT16 uv = yuv & 0xffff;
r = y + m_uv_lookup[uv][0];
g = y + m_uv_lookup[uv][1];
b = y + m_uv_lookup[uv][2];
if ( r < 0 ) r = 0;
if ( g < 0 ) g = 0;
if ( b < 0 ) b = 0;
if ( r > 255 ) r = 255;
if ( g > 255 ) g = 255;
if ( b > 255 ) b = 255;
return ( r << 16 ) | ( g << 8 ) | b;
}
void huc6261_device::device_timer(emu_timer &timer, device_timer_id id, int param, void *ptr)
{
int vpos = m_screen->vpos();
@ -58,11 +96,11 @@ void huc6261_device::device_timer(emu_timer &timer, device_timer_id id, int para
{
g_profiler.start( PROFILER_VIDEO );
/* Get next pixel information */
m_pixel_data = 0; //m_get_next_pixel_data( 0, 0xffff );
m_pixel_data = m_huc6270_b->next_pixel( *machine().memory().first_space(), 0, 0xffff );
g_profiler.stop();
}
bitmap_line[ h ] = m_palette[ m_pixel_data ];
bitmap_line[ h ] = yuv2rgb( ( ( m_palette[m_pixel_data] & 0xff00 ) << 8 ) | ( ( m_palette[m_pixel_data] & 0xf0 ) << 8 ) | ( ( m_palette[m_pixel_data] & 0x0f ) << 4 ) );
m_pixel_clock = ( m_pixel_clock + 1 ) % m_pixels_per_clock;
h = ( h + 1 ) % HUC6261_WPF;

3
src/emu/video/huc6261.h
View File

@ -46,6 +46,8 @@ public:
DECLARE_READ16_MEMBER( read );
DECLARE_WRITE16_MEMBER( write );
inline UINT32 yuv2rgb(UINT32 yuv);
protected:
// device-level overrides
virtual void device_config_complete();
@ -74,6 +76,7 @@ private:
emu_timer *m_timer;
bitmap_rgb32 *m_bmp;
INT32 m_uv_lookup[65536][3];
};