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(CRX): unnecessary dithering (#156)

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This commit is contained in:
morkt 2018-02-12 10:33:40 +04:00
parent 43fc625d81
commit 653c26b2ce
1 changed files with 7 additions and 74 deletions
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81
ArcFormats/Circus/ImageCRX.cs
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@ -172,88 +172,21 @@ namespace GameRes.Formats.Circus
int line = 0;
for (int h = 0; h < m_height; h++)
{
int shift = (h & 1) * 3;
for (int w = 0; w < m_width; w++)
{
int pixel = line + w * 4;
int alpha = m_output[pixel];
int b = m_output[pixel+1];
int g = m_output[pixel+2];
int r = m_output[pixel+3];
if (!is_diff && alpha != alpha_flip)
{
b += (w & 1) + shift;
if (b < 0)
b = 0;
else if (b > 0xff)
b = 0xff;
g += (w & 1) + shift;
if (g < 0)
g = 0;
else if (g > 0xff)
g = 0xff;
r += (w & 1) + shift;
if (r < 0)
r = 0;
else if (r > 0xff)
r = 0xff;
}
m_output[pixel] = (byte)b;
m_output[pixel+1] = (byte)g;
m_output[pixel+2] = (byte)r;
var alpha = m_output[pixel];
var b = m_output[pixel+1];
var g = m_output[pixel+2];
var r = m_output[pixel+3];
m_output[pixel] = b;
m_output[pixel+1] = g;
m_output[pixel+2] = r;
m_output[pixel+3] = (byte)(alpha ^ alpha_flip);
shift = -shift;
}
line += m_stride;
}
}
else if (24 == m_bpp)
{
int pixel = 0;
for (int h = 0; h < m_height; h++)
{
int shift = (h & 1) * 3;
for (int w = 0; w < m_width; w++)
{
int b = m_output[pixel];
int g = m_output[pixel+1];
int r = m_output[pixel+2];
if (b != 0xff || 0 != g || r != b)
{
b += (w & 1) + shift;
if (b < 0)
b = 0;
else if (b > 0xff)
b = 0xff;
g += (w & 1) + shift;
if (g < 0)
g = 0;
else if (g > 0xff)
g = 0xff;
r += (w & 1) + shift;
if (r < 0)
r = 0;
else if (r > 0xff)
r = 0xff;
m_output[pixel] = (byte)b;
m_output[pixel+1] = (byte)g;
m_output[pixel+2] = (byte)r;
}
shift = -shift;
pixel += 3;
}
}
}
}
private void UnpackV1 ()