diff options
Diffstat (limited to 'src/mame/drivers/sun2.cpp')
-rw-r--r-- | src/mame/drivers/sun2.cpp | 31 |
1 files changed, 14 insertions, 17 deletions
diff --git a/src/mame/drivers/sun2.cpp b/src/mame/drivers/sun2.cpp index 8f43b4249dd..f6b895fd502 100644 --- a/src/mame/drivers/sun2.cpp +++ b/src/mame/drivers/sun2.cpp @@ -624,29 +624,26 @@ void sun2_state::mbustype3space_map(address_map &map) uint32_t sun2_state::bw2_update(screen_device &screen, bitmap_rgb32 &bitmap, const rectangle &cliprect) { - uint32_t *scanline; - int x, y; - uint8_t pixels; static const uint32_t palette[2] = { 0, 0xffffff }; - uint8_t *m_vram = (uint8_t *)m_bw2_vram.target(); + uint8_t const *const m_vram = (uint8_t *)m_bw2_vram.target(); if (!(m_bw2_ctrl & 0x8000)) return 0; - for (y = 0; y < 900; y++) + for (int y = 0; y < 900; y++) { - scanline = &bitmap.pix32(y); - for (x = 0; x < 1152/8; x++) + uint32_t *scanline = &bitmap.pix(y); + for (int x = 0; x < 1152/8; x++) { - pixels = m_vram[(y * (1152/8)) + (BYTE_XOR_BE(x))]; - - *scanline++ = palette[(pixels>>7)&1]; - *scanline++ = palette[(pixels>>6)&1]; - *scanline++ = palette[(pixels>>5)&1]; - *scanline++ = palette[(pixels>>4)&1]; - *scanline++ = palette[(pixels>>3)&1]; - *scanline++ = palette[(pixels>>2)&1]; - *scanline++ = palette[(pixels>>1)&1]; - *scanline++ = palette[(pixels&1)]; + uint8_t const pixels = m_vram[(y * (1152/8)) + (BYTE_XOR_BE(x))]; + + *scanline++ = palette[BIT(pixels, 7)]; + *scanline++ = palette[BIT(pixels, 6)]; + *scanline++ = palette[BIT(pixels, 5)]; + *scanline++ = palette[BIT(pixels, 4)]; + *scanline++ = palette[BIT(pixels, 3)]; + *scanline++ = palette[BIT(pixels, 2)]; + *scanline++ = palette[BIT(pixels, 1)]; + *scanline++ = palette[BIT(pixels, 0)]; } } |