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- modified some ugly error-prone and worse piece of c++ i've ever seen in my life

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kunitoki 2011-10-23 21:37:56 +02:00
parent 267ee85dea
commit a7bd9ad6e8
1 changed files with 22 additions and 6 deletions
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24
src/palette.cpp
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@ -110,7 +110,9 @@ unsigned rgba_palette::quantize(rgba const& c) const
da = sorted_pal_[i].a - c.a; da = sorted_pal_[i].a - c.a;
// stop criteria based on properties of used sorting // stop criteria based on properties of used sorting
if ((dr+db+dg+da) * (dr+db+dg+da) / 4 > dist) if ((dr+db+dg+da) * (dr+db+dg+da) / 4 > dist)
{
break; break;
}
newdist = dr*dr + dg*dg + db*db + da*da; newdist = dr*dr + dg*dg + db*db + da*da;
if (newdist < dist) if (newdist < dist)
{ {
@ -118,6 +120,7 @@ unsigned rgba_palette::quantize(rgba const& c) const
dist = newdist; dist = newdist;
} }
} }
for (unsigned i = poz + 1; i < sorted_pal_.size(); i++) for (unsigned i = poz + 1; i < sorted_pal_.size(); i++)
{ {
dr = sorted_pal_[i].r - c.r; dr = sorted_pal_[i].r - c.r;
@ -126,7 +129,9 @@ unsigned rgba_palette::quantize(rgba const& c) const
da = sorted_pal_[i].a - c.a; da = sorted_pal_[i].a - c.a;
// stop criteria based on properties of used sorting // stop criteria based on properties of used sorting
if ((dr+db+dg+da) * (dr+db+dg+da) / 4 > dist) if ((dr+db+dg+da) * (dr+db+dg+da) / 4 > dist)
{
break; break;
}
newdist = dr*dr + dg*dg + db*db + da*da; newdist = dr*dr + dg*dg + db*db + da*da;
if (newdist < dist) if (newdist < dist)
{ {
@ -144,7 +149,7 @@ unsigned rgba_palette::quantize(rgba const& c) const
void rgba_palette::parse(std::string const& pal, palette_type type) void rgba_palette::parse(std::string const& pal, palette_type type)
{ {
int length = pal.length(); unsigned length = pal.length();
if ((type == PALETTE_RGBA && length % 4 > 0) || if ((type == PALETTE_RGBA && length % 4 > 0) ||
(type == PALETTE_RGB && length % 3 > 0) || (type == PALETTE_RGB && length % 3 > 0) ||
@ -163,18 +168,26 @@ void rgba_palette::parse(std::string const& pal, palette_type type)
rgb_pal_.clear(); rgb_pal_.clear();
alpha_pal_.clear(); alpha_pal_.clear();
if (type == PALETTE_RGBA) for (unsigned i = 0; i < length; i += 4) if (type == PALETTE_RGBA)
{
for (unsigned i = 0; i < length; i += 4)
{ {
sorted_pal_.push_back(rgba(pal[i], pal[i + 1], pal[i + 2], pal[i + 3])); sorted_pal_.push_back(rgba(pal[i], pal[i + 1], pal[i + 2], pal[i + 3]));
} }
else for (unsigned i = 0; i < length; i += 3) }
else
{
for (unsigned i = 0; i < length; i += 3)
{ {
sorted_pal_.push_back(rgba(pal[i], pal[i + 1], pal[i + 2], 0xFF)); sorted_pal_.push_back(rgba(pal[i], pal[i + 1], pal[i + 2], 0xFF));
} }
}
// Make sure we have at least one entry in the palette. // Make sure we have at least one entry in the palette.
if (sorted_pal_.size() == 0) if (sorted_pal_.size() == 0)
{
sorted_pal_.push_back(rgba(0, 0, 0, 0)); sorted_pal_.push_back(rgba(0, 0, 0, 0));
}
colors_ = sorted_pal_.size(); colors_ = sorted_pal_.size();
@ -187,7 +200,10 @@ void rgba_palette::parse(std::string const& pal, palette_type type)
rgba c = sorted_pal_[i]; rgba c = sorted_pal_[i];
color_hashmap_[c] = i; color_hashmap_[c] = i;
rgb_pal_.push_back(rgb(c)); rgb_pal_.push_back(rgb(c));
if (c.a < 0xFF) alpha_pal_.push_back(c.a); if (c.a < 0xFF)
{
alpha_pal_.push_back(c.a);
}
} }
} }