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Fixed image file extension detection

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Previously this would fail on `jpeg` and would detect something such as
`notajpg` as `jpg`. This fixes #929.
This commit is contained in:
Mario Liebisch 2015-07-23 09:03:15 +02:00 committed by Lukas Dürrenberger
parent fa1bc737d5
commit df99d5fee2
1 changed files with 27 additions and 28 deletions
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9
src/SFML/Graphics/ImageLoader.cpp
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@ -227,10 +227,10 @@ bool ImageLoader::saveImageToFile(const std::string& filename, const std::vector
if (!pixels.empty() && (size.x > 0) && (size.y > 0)) if (!pixels.empty() && (size.x > 0) && (size.y > 0))
{ {
// Deduce the image type from its extension // Deduce the image type from its extension
if (filename.size() > 3)
{
// Extract the extension // Extract the extension
std::string extension = toLower(filename.substr(filename.size() - 3)); const std::size_t dot = filename.find_last_of('.');
const std::string extension = dot != std::string::npos ? toLower(filename.substr(dot + 1)) : "";
if (extension == "bmp") if (extension == "bmp")
{ {
@ -250,14 +250,13 @@ bool ImageLoader::saveImageToFile(const std::string& filename, const std::vector
if (stbi_write_png(filename.c_str(), size.x, size.y, 4, &pixels[0], 0)) if (stbi_write_png(filename.c_str(), size.x, size.y, 4, &pixels[0], 0))
return true; return true;
} }
else if (extension == "jpg") else if (extension == "jpg" || extension == "jpeg")
{ {
// JPG format // JPG format
if (writeJpg(filename, pixels, size.x, size.y)) if (writeJpg(filename, pixels, size.x, size.y))
return true; return true;
} }
} }
}
err() << "Failed to save image \"" << filename << "\"" << std::endl; err() << "Failed to save image \"" << filename << "\"" << std::endl;
return false; return false;