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If no images are able to be packed into a texture atlas layer, don't create more

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This commit is contained in:
Dan Paulat 2023-09-03 19:04:47 -05:00
parent 94a5898755
commit e013b9a77f
1 changed files with 13 additions and 4 deletions
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17
scwx-qt/source/scwx/qt/util/texture_atlas.cpp
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@ -211,15 +211,16 @@ void TextureAtlas::BuildAtlas(std::size_t width, std::size_t height)
}
// Clear atlas
auto& atlas =
newAtlasArray.emplace_back(boost::gil::rgba8_image_t(width, height));
boost::gil::rgba8_view_t atlasView = boost::gil::view(atlas);
boost::gil::rgba8_image_t atlas(width, height);
boost::gil::rgba8_view_t atlasView = boost::gil::view(atlas);
boost::gil::fill_pixels(atlasView,
boost::gil::rgba8_pixel_t {255, 0, 255, 255});
// Populate atlas
logger_->trace("Populating atlas");
std::size_t numPackedImages = 0u;
for (std::size_t i = 0; i < images.size(); ++i)
{
// If the image was packed successfully
@ -273,6 +274,8 @@ void TextureAtlas::BuildAtlas(std::size_t width, std::size_t height)
sRight,
tTop,
tBottom));
numPackedImages++;
}
else
{
@ -281,12 +284,18 @@ void TextureAtlas::BuildAtlas(std::size_t width, std::size_t height)
}
}
if (numPackedImages > 0u)
{
// The new atlas layer has images that were able to be packed
newAtlasArray.emplace_back(std::move(atlas));
}
if (unpackedImages.empty())
{
// All images have been packed into the texture atlas
break;
}
else if (layer == kMaxLayers - 1u)
else if (layer == kMaxLayers - 1u || numPackedImages == 0u)
{
// Some images were unable to be packed into the texture atlas
for (auto& image : unpackedImages)