//! get a filtered pixel
inline ColourValue CImage::getPixelBox(SINT32 x, SINT32 y, SINT32 fx, SINT32 fy, SINT32 bias) const
{
ColourValue c;
SINT32 a = 0, r = 0, g = 0, b = 0;
for (SINT32 dx = 0; dx != fx; ++dx)
{
for (SINT32 dy = 0; dy != fy; ++dy)
{
c = getPixel(SINT32_min(x + dx, Size.Width - 1),
SINT32_min(y + dy, Size.Height - 1)
);
a += c.getAlpha();
r += c.getRed();
g += c.getGreen();
b += c.getBlue();
}
}
SINT32 sdiv = s32_log2_f32(fx * fy);
a = SINT32_clamp((a >> sdiv) + bias, 0, 255);
r = SINT32_clamp((r >> sdiv) + bias, 0, 255);
g = SINT32_clamp((g >> sdiv) + bias, 0, 255);
b = SINT32_clamp((b >> sdiv) + bias, 0, 255);
c.setAlpha(a);
c.setRed(r);
c.setBlue(b);
c.setGreen(g);
//c.set(a, r, g, b);
return c;
}
//! sets a pixel
void CImage::setPixel(UINT32 x, UINT32 y, const ColourValue &color, bool blend)
{
ColourValue c = color;
if (x >= Size.Width || y >= Size.Height)
return;
switch (Format)
{
case ECF_A1R5G5B5:
{
UINT16 * dest = (UINT16*)(Data + (y * Pitch) + (x << 1));
*dest = A8R8G8B8toA1R5G5B5(color.getAsARGB());
} break;
case ECF_R5G6B5:
{
UINT16 * dest = (UINT16*)(Data + (y * Pitch) + (x << 1));
*dest = A8R8G8B8toR5G6B5(color.getAsARGB());
} break;
case ECF_R8G8B8:
{
UINT8* dest = Data + (y * Pitch) + (x * 3);
dest[0] = (UINT8)c.getRed();
dest[1] = (UINT8)c.getGreen();
dest[2] = (UINT8)c.getBlue();
} break;
case ECF_A8R8G8B8:
{
UINT32 * dest = (UINT32*)(Data + (y * Pitch) + (x << 2));
*dest = blend ? PixelBlend32(*dest, color.getAsARGB()) : color.getAsARGB();
} break;
#ifndef _DEBUG
default:
break;
#endif
}
}