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Rewrite VI width and height calculation.

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Fixed NFL Quarterback Club 2000. More testing needed.
This commit is contained in:
Sergey Lipskiy 2015-03-05 17:01:57 +06:00
parent 1e5b7def3d
commit 61b079c53e
1 changed files with 13 additions and 28 deletions
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41
VI.cpp
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@ -34,37 +34,22 @@ void VI_UpdateSize()
const u32 widthPrev = VI.width;
const u32 heightPrev = VI.height;
VI.interlaced = (*REG.VI_STATUS & 0x40) != 0;
const bool isPAL = (*REG.VI_V_SYNC & 0x3ff) > 550;
if (hEnd != 0)
VI.width = (u32)floor((hEnd - (isPAL ? 128 : 108))* xScale + 0.5f);
else if (!VI.interlaced)
VI.width = *REG.VI_WIDTH;
else
VI.width = 0;
#if 0
const f32 yScale = _FIXED2FLOAT(vScale, 10);
if (*REG.VI_WIDTH > 0)
VI.width = min(VI.width, *REG.VI_WIDTH);
if (VI.interlaced && _SHIFTR(*REG.VI_Y_SCALE, 0, 12) == 1024)
VI.real_height = (vEnd - vStart);
else
VI.real_height = (u32)floor(((vEnd - vStart) >> 1) * yScale + 0.5f);
#else
VI.real_height = vEnd > vStart ? (((vEnd - vStart) >> 1) * vScale) >> 10 : 0;
VI.width = *REG.VI_WIDTH;
VI.interlaced = (*REG.VI_STATUS & 0x40) != 0;
if (VI.interlaced) {
if (VI.width != 0)
VI.real_height *= *REG.VI_WIDTH / VI.width;
} else {
if (*REG.VI_WIDTH > 0)
VI.width = min(VI.width, *REG.VI_WIDTH);
}
#endif
u32 fullWidth = (u32)(640.0f*xScale);
if (*REG.VI_WIDTH > fullWidth) {
const u32 scale = *REG.VI_WIDTH / fullWidth;
VI.width /= scale;
VI.real_height *= scale;
}
if (VI.real_height % 2 == 1)
--VI.real_height;
} else if (hEnd != 0 && *REG.VI_WIDTH != 0)
VI.width = min((u32)((hEnd - hStart)*xScale), *REG.VI_WIDTH);
if (VI.interlaced && VI.real_height % 2 == 1)
--VI.real_height;
const bool isPAL = (*REG.VI_V_SYNC & 0x3ff) > 550;
if (isPAL && (vEnd - vStart) > 480)
VI.height = (u32)(VI.real_height*1.0041841f);
else