GraphicsFormats Xojo plugin

RawJpegExporter Class (console safe)

A class to Export Pictures to a Jpeg format. The result can be written to a File, string or IBinaryStreamWriter.

This class uses RawBitmap that is defined in TypeLib instead of Xojo Pictures. RawBitmap can be used in console applications.

This class will also include ICC Color Profile if the RawBitmap had ICC Color profile on it.

This class uses simd hardware acceleration on the following platforms:
macOS Intel, macOS Apple Silicon, Windows 64 bit, Windows 32 bit, Linux 32 bit, Linux 64 bit, Linux Arm 64 bit, iOS and iOS Simulator macOS Intel.

No simd hardware acceleration is used on:
Windows Arm 64 bi, iOS Simulator Apple Silicon and Linux Arm 32 bit.


This software is based in part on the work of the Independent JPEG Group.

Copyright (C)2009-2023 D. R. Commander. All Rights Reserved.
Copyright (C)2015 Viktor Szathmáry. All Rights Reserved.

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.
Neither the name of the libjpeg-turbo Project nor the names of its contributors may be used to endorse or promote products derived from this software without specific prior written permission.
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 HOLDERS 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.

Object
   RawJpegExporter

class RawJpegExporter implements

IRawBitmapWriter

Properties

AbortedReturns true if the export was aborted by progress handler.
BaselineForces baseline in the quality setting.
GrayscaleTo compress to a Grayscale color space.
LastErrorError code for last method called.
ProgressHandlerIf delegate is assigned to this property then the exporter will report progress to the delegate method and the export can also be canceled from the delegate.
ProgressiveTo set a progressive compression.
QualityQuality is to define the quality level.
SmoothingFactorSmoothing factor is to add smoothing to the image when it gets compressed.

Methods

GetLastErrorCodeSame as the LastError property but this one returns it as Integer to full-fill the standard interface.
SaveToFileExports a RawBitmap picture to a Jpeg file.
SaveToStringExports a picture formatted as Jpeg to a String.

Constants

Version = 10.02

Supported Platforms:

  • macOS Intel 64 bit
  • macOS Apple Silicon
  • Windows 32 bit
  • Windows 64 bit
  • Windows ARM 64 bit
  • Linux 32 bit
  • Linux 64 bit
  • Linux ARM 32 bit
  • Linux ARM 64 bit
  • iOS