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fmtowns: better horizontal scrolling

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r09 2017-12-01 23:39:06 +01:00 committed by GitHub
parent 112fbd83ab
commit af1dc2b4a4
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GPG Key ID: 4AEE18F83AFDEB23
1 changed files with 6 additions and 6 deletions
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12
src/mame/video/fmtowns.cpp
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@ -958,7 +958,7 @@ void towns_state::towns_crtc_draw_scan_layer_hicolour(bitmap_rgb32 &bitmap,const
scroll = ((m_video.towns_crtc_reg[21] & 0xfc00) << 2) | (((m_video.towns_crtc_reg[21] & 0x3ff) << 2));
off += scroll;
}
off += (m_video.towns_crtc_reg[11] - m_video.towns_crtc_reg[22]);
off += (m_video.towns_crtc_reg[11] - m_video.towns_crtc_reg[22]) / 2;
hzoom = ((m_video.towns_crtc_reg[27] & 0x0f00) >> 8) + 1;
}
else
@ -970,7 +970,7 @@ void towns_state::towns_crtc_draw_scan_layer_hicolour(bitmap_rgb32 &bitmap,const
scroll = ((m_video.towns_crtc_reg[17] & 0xfc00) << 2) | (((m_video.towns_crtc_reg[17] & 0x3ff) << 2));
off += scroll;
}
off += (m_video.towns_crtc_reg[9] - m_video.towns_crtc_reg[18]);
off += (m_video.towns_crtc_reg[9] - m_video.towns_crtc_reg[18]) / 2;
hzoom = (m_video.towns_crtc_reg[27] & 0x000f) + 1;
}
@ -1150,7 +1150,7 @@ void towns_state::towns_crtc_draw_scan_layer_256(bitmap_rgb32 &bitmap,const rect
scroll = ((m_video.towns_crtc_reg[21] & 0xfc00) << 3) | (((m_video.towns_crtc_reg[21] & 0x3ff) << 3));
off += scroll;
}
off += (m_video.towns_crtc_reg[11] - m_video.towns_crtc_reg[22]);
off += (m_video.towns_crtc_reg[11] - m_video.towns_crtc_reg[22]) / 2;
hzoom = ((m_video.towns_crtc_reg[27] & 0x0f00) >> 8) + 1;
}
else
@ -1162,7 +1162,7 @@ void towns_state::towns_crtc_draw_scan_layer_256(bitmap_rgb32 &bitmap,const rect
scroll = ((m_video.towns_crtc_reg[17] & 0xfc00) << 3) | (((m_video.towns_crtc_reg[17] & 0x3ff) << 3));
off += scroll;
}
off += (m_video.towns_crtc_reg[9] - m_video.towns_crtc_reg[18]);
off += (m_video.towns_crtc_reg[9] - m_video.towns_crtc_reg[18]) / 2;
hzoom = (m_video.towns_crtc_reg[27] & 0x000f) + 1;
}
@ -1296,7 +1296,7 @@ void towns_state::towns_crtc_draw_scan_layer_16(bitmap_rgb32 &bitmap,const recta
scroll = ((m_video.towns_crtc_reg[21] & 0xfc00)<<2) | (((m_video.towns_crtc_reg[21] & 0x3ff)<<2));
off += scroll;
}
off += (m_video.towns_crtc_reg[11] - m_video.towns_crtc_reg[22]);
off += (m_video.towns_crtc_reg[11] - m_video.towns_crtc_reg[22]) / 2;
hzoom = ((m_video.towns_crtc_reg[27] & 0x0f00) >> 8) + 1;
}
else
@ -1308,7 +1308,7 @@ void towns_state::towns_crtc_draw_scan_layer_16(bitmap_rgb32 &bitmap,const recta
scroll = ((m_video.towns_crtc_reg[17] & 0xfc00)<<2) | (((m_video.towns_crtc_reg[17] & 0x3ff)<<2));
off += scroll;
}
off += (m_video.towns_crtc_reg[9] - m_video.towns_crtc_reg[18]);
off += (m_video.towns_crtc_reg[9] - m_video.towns_crtc_reg[18]) / 2;
hzoom = (m_video.towns_crtc_reg[27] & 0x000f) + 1;
}