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Merge branch 'nipixeldata' into 'master'

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Clean up palettized NiPixelData loading

See merge request OpenMW/openmw!374
This commit is contained in:
Alexei Dobrohotov 2020-10-25 21:22:15 +00:00
commit a78aa6b22c
1 changed files with 8 additions and 24 deletions
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32
components/nifosg/nifloader.cpp
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@ -1401,32 +1401,16 @@ namespace NifOsg
}
// We're going to convert the indices that pixel data contains
// into real colors using the palette.
const std::vector<unsigned int>& palette = pixelData->palette->colors;
if (pixelData->fmt == Nif::NiPixelData::NIPXFMT_PAL8)
const auto& palette = pixelData->palette->colors;
const int numChannels = pixelformat == GL_RGBA ? 4 : 3;
unsigned char* data = new unsigned char[pixels.size() * numChannels];
unsigned char* pixel = data;
for (unsigned char index : pixels)
{
unsigned char* data = new unsigned char[pixels.size() * 3];
for (size_t i = 0; i < pixels.size(); i++)
{
unsigned int color = palette[pixels[i]];
data[i * 3 + 0] = (color >> 0) & 0xFF;
data[i * 3 + 1] = (color >> 8) & 0xFF;
data[i * 3 + 2] = (color >> 16) & 0xFF;
}
image->setImage(width, height, 1, pixelformat, pixelformat, GL_UNSIGNED_BYTE, data, osg::Image::USE_NEW_DELETE);
}
else // if (fmt = NIPXFMT_PALA8)
{
unsigned char* data = new unsigned char[pixels.size() * 4];
for (size_t i = 0; i < pixels.size(); i++)
{
unsigned int color = palette[pixels[i]];
data[i * 4 + 0] = (color >> 0) & 0xFF;
data[i * 4 + 1] = (color >> 8) & 0xFF;
data[i * 4 + 2] = (color >> 16) & 0xFF;
data[i * 4 + 3] = (color >> 24) & 0xFF;
}
image->setImage(width, height, 1, pixelformat, pixelformat, GL_UNSIGNED_BYTE, data, osg::Image::USE_NEW_DELETE);
memcpy(pixel, &palette[index], sizeof(unsigned char) * numChannels);
pixel += numChannels;
}
image->setImage(width, height, 1, pixelformat, pixelformat, GL_UNSIGNED_BYTE, data, osg::Image::USE_NEW_DELETE);
break;
}
default: