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Daniel Borges
2012-09-02 15:24:38 +02:00
commit 5b667b5781
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179
DSTexCompress/FreeImage/Wrapper/FreeImage.NET/cs/Samples/Sample 01 - Loading and saving/Program.cs Normal file
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using System;
using System.IO;
using FreeImageAPI;
using System.Collections.Generic;
using System.Runtime.Serialization.Formatters.Binary;
using System.Drawing;
using System.Drawing.Imaging;
using System.Runtime.InteropServices;
namespace Sample01
{
class Program
{
static void Main(string[] args)
{
// Check if FreeImage.dll is available (can be in %path%).
if (!FreeImage.IsAvailable())
{
Console.WriteLine("FreeImage.dll seems to be missing. Aborting.");
return;
}
Sample sample = new Sample();
// This example shows the basic loading and saving operations offered by FreeImage.
sample.Example01();
// This example shows a more comfortable way offered by the .NET Wrapper.
sample.Example02();
// This example shows the FreeImage-Errormessage-Callback
sample.Example03();
}
}
public class Sample
{
const string fileName = @"Sample.jpg";
const string outFileName = @"Sample.tif";
FIBITMAP dib = new FIBITMAP();
string message = null;
public void Example01()
{
if (!File.Exists(fileName))
{
Console.WriteLine(fileName + " does not exist. Aborting.");
return;
}
// Try to unload the bitmap handle (in case it is not null).
// Always assert that a handle (like dib) is unloaded before it is reused, because
// on unmanaged side there is no garbage collector that will clean up unreferenced
// objects.
// The following code will produce a memory leak (in case the bitmap is loaded
// successfully) because the handle to the first bitmap is lost:
// dib = FreeImage.Load(FREE_IMAGE_FORMAT.FIF_JPEG, fileName, FREE_IMAGE_LOAD_FLAGS.JPEG_ACCURATE);
// dib = FreeImage.Load(FREE_IMAGE_FORMAT.FIF_JPEG, fileName, FREE_IMAGE_LOAD_FLAGS.JPEG_ACCURATE);
if (!dib.IsNull)
FreeImage.Unload(dib);
// Loading a sample bitmap. In this case it's a .jpg file. 'Load' requires the file
// format or the loading process will fail. An additional flag (the default value is
// 'DEFAULT') can be set to enable special loading options.
dib = FreeImage.Load(FREE_IMAGE_FORMAT.FIF_JPEG, fileName, FREE_IMAGE_LOAD_FLAGS.JPEG_ACCURATE);
// Check if the handle is null which means the bitmap could not be loaded.
if (dib.IsNull)
{
Console.WriteLine("Loading bitmap failed. Aborting.");
// Check whether there was an error message.
return;
}
// Try flipping the bitmap.
if (!FreeImage.FlipHorizontal(dib))
{
Console.WriteLine("Unable to flip bitmap.");
// Check whether there was an error message.
}
// Store the bitmap back to disk. Again the desired format is needed. In this case the format is 'TIFF'.
// An output filename has to be chosen (which will be overwritten without a warning).
// A flag can be provided to enable pluginfunctions (compression is this case).
FreeImage.Save(FREE_IMAGE_FORMAT.FIF_TIFF, dib, outFileName, FREE_IMAGE_SAVE_FLAGS.TIFF_DEFLATE);
// The bitmap was saved to disk but is still allocated in memory, so the handle has to be freed.
if (!dib.IsNull)
FreeImage.Unload(dib);
// Make sure to set the handle to null so that it is clear that the handle is not pointing to a bitmap.
dib.SetNull();
}
public void Example02()
{
// 'UnloadEx' is a comfortable way of unloading a bitmap. The coder can call 'UnloadEx' even
// when the handle is pointing to null (in this case nothing will happen). In case the handle
// is valid (valid means that it is NOT pointing to null) the bitmap will be unloaded and the
// handle will be set to null manually.
FreeImage.UnloadEx(ref dib);
// 'LoadEx' is a comfortable way of loading a bitmap. 'LoadEx' tries to find out the format of
// the file and will use this to load it. It will use DEFAULT loading values.
dib = FreeImage.LoadEx(fileName);
// Check if the handle is null which means the bitmap could not be loaded.
if (dib.IsNull)
{
Console.WriteLine("Loading bitmap failed. Aborting.");
return;
}
// 'SaveEx' (like 'LoadEx') will try to save the bitmap with default values.
// Before saving the bitmap, 'SaveEx' checks whether the extension is valid for the file type
// and if the plugin can use the colordepth of the bitmap. If not it will automatically convert
// the bitmap into the next best colordepth and save it.
if (!FreeImage.SaveEx(ref dib, @"Sample.gif", false))
{
Console.WriteLine("Saving bitmap failed.");
}
// The handle is still valid.
if (!FreeImage.SaveEx(
ref dib,
@"Sample", // No extension was selected so let 'SaveEx' decide.
FREE_IMAGE_FORMAT.FIF_PNG, // A format is needed this time.
FREE_IMAGE_SAVE_FLAGS.DEFAULT, // PNG has no options so use default.
FREE_IMAGE_COLOR_DEPTH.FICD_04_BPP, // 4bpp as result color depth.
true)) // We're done so unload
{
// SaveEx will not unload the bitmap in case saving failed.
// This way possible operations done to the bitmaps aren't lost.
FreeImage.UnloadEx(ref dib);
}
}
public void Example03()
{
// Safely unload to prevent memory leak.
FreeImage.UnloadEx(ref dib);
// Load the example bitmap.
dib = FreeImage.LoadEx(fileName);
// Check whether loading succeeded.
if (dib.IsNull)
{
return;
}
// Add this class to the callback event.
FreeImageEngine.Message += new OutputMessageFunction(FreeImage_Message);
// Try to save the bitmap as a gif
if (!FreeImage.Save(FREE_IMAGE_FORMAT.FIF_GIF, dib, @"Sample_fail.gif", FREE_IMAGE_SAVE_FLAGS.DEFAULT))
{
// Saving failed
// Check whether there was an error callback
if (message != null)
{
// Print the message and delete it.
Console.WriteLine("Error message recieved: {0}", message);
message = null;
}
}
// Unload bitmap.
FreeImage.UnloadEx(ref dib);
// Remove this class from the callback event.
FreeImageEngine.Message -= new OutputMessageFunction(FreeImage_Message);
}
void FreeImage_Message(FREE_IMAGE_FORMAT fif, string message)
{
this.message = message;
}
}
}

16
DSTexCompress/FreeImage/Wrapper/FreeImage.NET/cs/Samples/Sample 01 - Loading and saving/Properties/AssemblyInfo.cs Normal file
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using System.Reflection;
using System.Runtime.CompilerServices;
using System.Runtime.InteropServices;
[assembly: AssemblyTitle("")]
[assembly: AssemblyDescription("")]
[assembly: AssemblyConfiguration("")]
[assembly: AssemblyCompany("")]
[assembly: AssemblyProduct("")]
[assembly: AssemblyCopyright("")]
[assembly: AssemblyTrademark("")]
[assembly: AssemblyCulture("")]
[assembly: ComVisible(false)]
[assembly: Guid("ac0569fe-c021-4f40-bfe9-275baf0fd21a")]
[assembly: AssemblyVersion("1.0.0.0")]
[assembly: AssemblyFileVersion("1.0.0.0")]

103
DSTexCompress/FreeImage/Wrapper/FreeImage.NET/cs/Samples/Sample 01 - Loading and saving/Sample 01 - Loading and saving.csproj Normal file
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<Project DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
<PropertyGroup>
<Configuration Condition=" '$(Configuration)' == '' ">Debug</Configuration>
<Platform Condition=" '$(Platform)' == '' ">AnyCPU</Platform>
<ProductVersion>8.0.50727</ProductVersion>
<SchemaVersion>2.0</SchemaVersion>
<ProjectGuid>{0D294AB6-FAD4-4364-AAB6-43C1796116A9}</ProjectGuid>
<OutputType>Exe</OutputType>
<AppDesignerFolder>Properties</AppDesignerFolder>
<RootNamespace>Sample01</RootNamespace>
<AssemblyName>Sample01</AssemblyName>
<StartupObject>
</StartupObject>
</PropertyGroup>
<PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Debug|AnyCPU' ">
<DebugSymbols>true</DebugSymbols>
<DebugType>full</DebugType>
<Optimize>false</Optimize>
<OutputPath>bin\Debug\</OutputPath>
<DefineConstants>DEBUG;TRACE</DefineConstants>
<ErrorReport>prompt</ErrorReport>
<WarningLevel>4</WarningLevel>
<UseVSHostingProcess>false</UseVSHostingProcess>
<AllowUnsafeBlocks>true</AllowUnsafeBlocks>
</PropertyGroup>
<PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Release|AnyCPU' ">
<DebugType>none</DebugType>
<Optimize>true</Optimize>
<OutputPath>bin\Release\</OutputPath>
<DefineConstants>TRACE</DefineConstants>
<ErrorReport>prompt</ErrorReport>
<WarningLevel>4</WarningLevel>
<UseVSHostingProcess>false</UseVSHostingProcess>
<AllowUnsafeBlocks>true</AllowUnsafeBlocks>
</PropertyGroup>
<PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Debug|x86' ">
<DebugSymbols>true</DebugSymbols>
<OutputPath>bin\Debug\</OutputPath>
<DefineConstants>DEBUG;TRACE</DefineConstants>
<AllowUnsafeBlocks>true</AllowUnsafeBlocks>
<DebugType>full</DebugType>
<PlatformTarget>x86</PlatformTarget>
<UseVSHostingProcess>false</UseVSHostingProcess>
<ErrorReport>prompt</ErrorReport>
</PropertyGroup>
<PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Release|x86' ">
<OutputPath>bin\Release\</OutputPath>
<DefineConstants>TRACE</DefineConstants>
<AllowUnsafeBlocks>true</AllowUnsafeBlocks>
<Optimize>true</Optimize>
<DebugType>
</DebugType>
<PlatformTarget>x86</PlatformTarget>
<UseVSHostingProcess>false</UseVSHostingProcess>
<ErrorReport>prompt</ErrorReport>
</PropertyGroup>
<PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Debug|x64' ">
<DebugSymbols>true</DebugSymbols>
<OutputPath>bin\Debug\</OutputPath>
<DefineConstants>DEBUG;TRACE</DefineConstants>
<AllowUnsafeBlocks>true</AllowUnsafeBlocks>
<DebugType>full</DebugType>
<PlatformTarget>x64</PlatformTarget>
<UseVSHostingProcess>false</UseVSHostingProcess>
<ErrorReport>prompt</ErrorReport>
</PropertyGroup>
<PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Release|x64' ">
<OutputPath>bin\Release\</OutputPath>
<DefineConstants>TRACE</DefineConstants>
<AllowUnsafeBlocks>true</AllowUnsafeBlocks>
<Optimize>true</Optimize>
<DebugType>
</DebugType>
<PlatformTarget>x64</PlatformTarget>
<UseVSHostingProcess>false</UseVSHostingProcess>
<ErrorReport>prompt</ErrorReport>
</PropertyGroup>
<ItemGroup>
<Reference Include="FreeImageNET, Version=3.11.0.0, Culture=neutral, processorArchitecture=MSIL">
<SpecificVersion>False</SpecificVersion>
<HintPath>..\..\Bin\FreeImageNET.dll</HintPath>
</Reference>
<Reference Include="System" />
<Reference Include="System.Drawing" />
</ItemGroup>
<ItemGroup>
<Compile Include="Program.cs" />
<Compile Include="Properties\AssemblyInfo.cs" />
</ItemGroup>
<ItemGroup>
<None Include="Sample.jpg">
<CopyToOutputDirectory>Always</CopyToOutputDirectory>
</None>
</ItemGroup>
<Import Project="$(MSBuildBinPath)\Microsoft.CSharp.targets" />
<!-- To modify your build process, add your task inside one of the targets below and uncomment it.
Other similar extension points exist, see Microsoft.Common.targets.
<Target Name="BeforeBuild">
</Target>
<Target Name="AfterBuild">
</Target>
-->
</Project>

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DSTexCompress/FreeImage/Wrapper/FreeImage.NET/cs/Samples/Sample 01 - Loading and saving/Sample.jpg Normal file
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