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updated doc for multiple images format

This commit is contained in:
Thomas Jentzsch 2022-08-17 10:46:50 +02:00
parent 730b66cc08
commit f9a1782886
2 changed files with 19 additions and 10 deletions
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24
docs/index.html
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@ -4033,18 +4033,28 @@
<h3><b><a name="ROMInfoViewer">ROM Info Viewer</a></b></h3>
<p>Stella supports viewing snapshots and ROM properties of the currently
selected ROM in the ROM launcher. Support is automatic, as long as your
image directory contains snapshots in the appropriate format. The title
<p>Stella supports viewing images and ROM properties of the currently
selected ROM in the ROM launcher. Image support is automatic, as long as your
image directory contains snapshots in the appropriate format. The label
(if existing) and the number of matching snapshots are displayed under the
current one. The mouse or the launcher hotkeys can be used to browse the
snapshots.
current one. The mouse or the ROM Launcher hotkeys can be used to browse
multiple images or a ROM.</p>
An <a href="https://stella-emu.github.io/stella-snapshots.zip">archive</a> of
Notes:
<li>The images can have PNG or JPG format.</li>
<li>The image names must be identical to either Stella's ROM properties cart
name or the ROM's filename.</li>
<li>For displaying additional images per ROM, the image names must be
extended with '_#', where '#' is a number.</li>
<li>The image label is read from the image's metadata. For PNGs, the 'iTxt'
chunk, keyword 'Title', for JPGs, the EXIF field 'ImageDescription' is used.
</li>
<p>An <a href="https://stella-emu.github.io/stella-snapshots.zip">archive</a> of
updated snapshots is available on the Stella webpage.
This archive may be updated periodically as new ROMs are found, and also
for each new release of Stella. In case no snapshot is found, you can
provide a default image named 'default_snapshot.png'.
provide a default image named 'default_snapshot.png' or 'default_snapshot.jpg'.
Note that the snapshots can be any size (e.g. generated by Stella); they
will be resized accordingly.</p>

5
src/common/JPGLibrary.cxx
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@ -53,7 +53,6 @@ void JPGLibrary::loadImage(const string& filename, FBSurface& surface,
myFileBuffer.resize(size);
if(!in.read(myFileBuffer.data(), size))
loadImageERROR("Image data reading failed");
in.close();
if(njDecode(myFileBuffer.data(), static_cast<int>(size)))
loadImageERROR("Error decoding the input file");
@ -109,10 +108,10 @@ void JPGLibrary::readMetaData(const string& filename, VariantList& metaData)
metaData.clear();
// open a stream to read just the necessary parts of the image file
std::ifstream istream(filename, std::ifstream::binary);
std::ifstream in(filename, std::ifstream::binary);
// parse image EXIF metadata
TinyEXIF::EXIFInfo imageEXIF(istream);
TinyEXIF::EXIFInfo imageEXIF(in);
if(imageEXIF.Fields)
{
// For now we only read the image description