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MT03860

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This commit is contained in:
David Haywood 2015-12-14 23:13:28 +00:00
parent 9aecc522a4
commit 2fdc4a7ec7
2 changed files with 25 additions and 3 deletions
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4
src/mame/includes/vsnes.h
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@ -12,7 +12,8 @@ public:
m_ppu1(*this, "ppu1"),
m_ppu2(*this, "ppu2"),
m_work_ram(*this, "work_ram"),
m_work_ram_1(*this, "work_ram_1")
m_work_ram_1(*this, "work_ram_1"),
m_palette(*this, "palette")
{ }
required_device<cpu_device> m_maincpu;
@ -22,6 +23,7 @@ public:
required_shared_ptr<UINT8> m_work_ram;
optional_shared_ptr<UINT8> m_work_ram_1;
required_device<palette_device> m_palette;
int m_coin;
int m_do_vrom_bank;
int m_input_latch[4];

24
src/mame/machine/vsnes.cpp
View File

@ -360,13 +360,32 @@ WRITE8_MEMBER(vsnes_state::gun_in0_w)
/* do the gun thing */
int x = ioport("GUNX")->read();
int y = ioport("GUNY")->read();
UINT32 pix, color_base;
UINT8 pix;
/* get the pixel at the gun position */
pix = m_ppu1->get_pixel(x, y);
rgb_t col = m_palette->pen_color(pix);
//UINT8 r = col.r();
//UINT8 g = col.g();
//UINT8 b = col.b();
UINT8 bright = col.brightness();
// todo, calculate how bright it is with pix.r * 0.3 + pix.g * 0.59 + pix.b * 0.11 ?
// the mame calc above is UINT8 brightness() const { return (r() * 222 + g() * 707 + b() * 71) / 1000; } (from lib/util/palette.h)
//printf("pix is %02x | %02x %02x %02x | %02x\n", pix, r,g,b,bright);
if (bright == 0xff)
{
m_input_latch[0] |= 0x40;
}
#if 0 // this is junk code, only works for NES palette..
/* get the color base from the ppu */
color_base = m_ppu1->get_colorbase();
UINT32 color_base = m_ppu1->get_colorbase();
/* look at the screen and see if the cursor is over a bright pixel */
if ((pix == color_base + 0x20 ) || (pix == color_base + 0x30) ||
@ -374,6 +393,7 @@ WRITE8_MEMBER(vsnes_state::gun_in0_w)
{
m_input_latch[0] |= 0x40;
}
#endif
m_input_latch[1] = ioport("IN1")->read();
}