Initial experiment with stb_image(_write)

cinder · Feb 22, 2015 · c3507be · c3507be
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diff --git a/include/cinder/ImageSourceFileStbImage.h b/include/cinder/ImageSourceFileStbImage.h
@@ -0,0 +1,54 @@
+/*
+ Copyright (c) 2015, The Cinder Project, All rights reserved.
+ 
+ This code is intended for use with the Cinder C++ library: http://libcinder.org
+
+ Redistribution and use in source and binary forms, with or without modification, are permitted provided that
+ the following conditions are met:
+
+	* Redistributions of source code must retain the above copyright notice, this list of conditions and
+	the following disclaimer.
+	* Redistributions in binary form must reproduce the above copyright notice, this list of conditions and
+	the following disclaimer in the documentation and/or other materials provided with the distribution.
+
+ THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED
+ WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+ PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR
+ ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED
+ TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+ NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ POSSIBILITY OF SUCH DAMAGE.
+*/
+
+#pragma once
+
+#include "cinder/Cinder.h"
+#include "cinder/ImageIo.h"
+#include "cinder/Exception.h"
+
+namespace cinder {
+
+typedef std::shared_ptr<class ImageSourceFileStbImage>	ImageSourceFileStbImageRef;
+
+class ImageSourceFileStbImage : public ImageSource {
+  public:
+	~ImageSourceFileStbImage();
+
+	static ImageSourceRef	create( DataSourceRef dataSourceRef, ImageSource::Options options ) { return ImageSourceFileStbImageRef( new ImageSourceFileStbImage( dataSourceRef, options ) ); }
+
+	static void		registerSelf();
+
+	void	load( ImageTargetRef target ) override;
+
+  protected:
+	ImageSourceFileStbImage( DataSourceRef dataSourceRef, ImageSource::Options options );
+
+	uint8_t		*mData8u;
+	float		*mData32f;
+	size_t		mRowBytes;
+};
+
+REGISTER_IMAGE_IO_FILE_HANDLER( ImageSourceFileStbImage )
+
+} // namespace cinder
diff --git a/include/cinder/ImageTargetFileStbImage.h b/include/cinder/ImageTargetFileStbImage.h
@@ -0,0 +1,53 @@
+/*
+ Copyright (c) 2015, The Cinder Project, All rights reserved.
+ 
+ This code is intended for use with the Cinder C++ library: http://libcinder.org
+
+ Redistribution and use in source and binary forms, with or without modification, are permitted provided that
+ the following conditions are met:
+
+	* Redistributions of source code must retain the above copyright notice, this list of conditions and
+	the following disclaimer.
+	* Redistributions in binary form must reproduce the above copyright notice, this list of conditions and
+	the following disclaimer in the documentation and/or other materials provided with the distribution.
+
+ THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED
+ WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+ PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR
+ ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED
+ TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+ NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ POSSIBILITY OF SUCH DAMAGE.
+*/
+
+#pragma once
+
+#include "cinder/ImageIo.h"
+
+namespace cinder {
+
+typedef std::shared_ptr<class ImageTargetFileStbImage> ImageTargetFileStbImageRef;
+
+class ImageTargetFileStbImage : public ImageTarget {
+  public:
+	static ImageTargetRef		create( DataTargetRef dataTarget, ImageSourceRef imageSource, ImageTarget::Options options, const std::string &extensionData );
+
+	void*	getRowPointer( int32_t row ) override;
+	void	finalize() override;
+
+	static void		registerSelf();
+
+  protected:
+	ImageTargetFileStbImage( DataTargetRef dataTarget, ImageSourceRef imageSource, ImageTarget::Options options, const std::string &extensionData );
+
+	uint8_t						mNumComponents;
+	size_t						mRowBytes;
+	std::string					mExtension;
+	fs::path					mFilePath;
+	std::unique_ptr<uint8_t[]>	mData;
+};
+
+REGISTER_IMAGE_IO_FILE_HANDLER( ImageTargetFileStbImage )
+
+} // namespace cinder