mirror of
https://github.com/juce-framework/JUCE.git
synced 2026-01-10 23:44:24 +00:00
93 lines
2.8 KiB
C++
93 lines
2.8 KiB
C++
/*
|
|
==============================================================================
|
|
|
|
This file is part of the JUCE library - "Jules' Utility Class Extensions"
|
|
Copyright 2004-11 by Raw Material Software Ltd.
|
|
|
|
------------------------------------------------------------------------------
|
|
|
|
JUCE can be redistributed and/or modified under the terms of the GNU General
|
|
Public License (Version 2), as published by the Free Software Foundation.
|
|
A copy of the license is included in the JUCE distribution, or can be found
|
|
online at www.gnu.org/licenses.
|
|
|
|
JUCE is distributed in the hope that it will be useful, but WITHOUT ANY
|
|
WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
|
|
A PARTICULAR PURPOSE. See the GNU General Public License for more details.
|
|
|
|
------------------------------------------------------------------------------
|
|
|
|
To release a closed-source product which uses JUCE, commercial licenses are
|
|
available: visit www.rawmaterialsoftware.com/juce for more information.
|
|
|
|
==============================================================================
|
|
*/
|
|
|
|
BEGIN_JUCE_NAMESPACE
|
|
|
|
//==============================================================================
|
|
ImageFileFormat* ImageFileFormat::findImageFormatForStream (InputStream& input)
|
|
{
|
|
struct DefaultImageFormats
|
|
{
|
|
PNGImageFormat png;
|
|
JPEGImageFormat jpg;
|
|
GIFImageFormat gif;
|
|
};
|
|
|
|
static DefaultImageFormats defaultImageFormats;
|
|
|
|
ImageFileFormat* formats[] = { &defaultImageFormats.png,
|
|
&defaultImageFormats.jpg,
|
|
&defaultImageFormats.gif };
|
|
|
|
const int64 streamPos = input.getPosition();
|
|
|
|
for (int i = 0; i < numElementsInArray (formats); ++i)
|
|
{
|
|
const bool found = formats[i]->canUnderstand (input);
|
|
input.setPosition (streamPos);
|
|
|
|
if (found)
|
|
return formats[i];
|
|
}
|
|
|
|
return nullptr;
|
|
}
|
|
|
|
//==============================================================================
|
|
Image ImageFileFormat::loadFrom (InputStream& input)
|
|
{
|
|
ImageFileFormat* const format = findImageFormatForStream (input);
|
|
|
|
if (format != nullptr)
|
|
return format->decodeImage (input);
|
|
|
|
return Image::null;
|
|
}
|
|
|
|
Image ImageFileFormat::loadFrom (const File& file)
|
|
{
|
|
FileInputStream stream (file);
|
|
|
|
if (stream.openedOk())
|
|
{
|
|
BufferedInputStream b (stream, 8192);
|
|
return loadFrom (b);
|
|
}
|
|
|
|
return Image::null;
|
|
}
|
|
|
|
Image ImageFileFormat::loadFrom (const void* rawData, const size_t numBytes)
|
|
{
|
|
if (rawData != nullptr && numBytes > 4)
|
|
{
|
|
MemoryInputStream stream (rawData, numBytes, false);
|
|
return loadFrom (stream);
|
|
}
|
|
|
|
return Image::null;
|
|
}
|
|
|
|
END_JUCE_NAMESPACE
|