mirror of https://github.com/encounter/SDL.git
testsurround: Add surround sound channel tester
This commit is contained in:
Cameron Gutman
Sam Lantinga
parent
27369b3e40
commit
cd66c050fe
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@ -157,6 +157,7 @@ test/testshape
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test/testsprite2
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test/testsprite2
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test/testspriteminimal
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test/testspriteminimal
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test/teststreaming
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test/teststreaming
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test/testsurround
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test/testthread
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test/testthread
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test/testtimer
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test/testtimer
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test/testurl
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test/testurl
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@ -56,6 +56,8 @@ Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "testyuv", "tests\testyuv\te
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EndProject
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EndProject
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Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "testsensor", "tests\testsensor\testsensor.vcxproj", "{C4E04D18-EF76-4B42-B4C2-16A1BACDC0A4}"
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Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "testsensor", "tests\testsensor\testsensor.vcxproj", "{C4E04D18-EF76-4B42-B4C2-16A1BACDC0A4}"
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EndProject
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EndProject
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Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "testsurround", "tests\testsurround\testsurround.vcxproj", "{70B894A9-E306-49E8-ABC2-932A952A5E5F}"
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EndProject
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Global
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Global
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GlobalSection(SolutionConfigurationPlatforms) = preSolution
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GlobalSection(SolutionConfigurationPlatforms) = preSolution
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Debug|Win32 = Debug|Win32
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Debug|Win32 = Debug|Win32
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@ -280,6 +282,14 @@ Global
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||||||
{C4E04D18-EF76-4B42-B4C2-16A1BACDC0A4}.Release|Win32.Build.0 = Release|Win32
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{C4E04D18-EF76-4B42-B4C2-16A1BACDC0A4}.Release|Win32.Build.0 = Release|Win32
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||||||
{C4E04D18-EF76-4B42-B4C2-16A1BACDC0A4}.Release|x64.ActiveCfg = Release|x64
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{C4E04D18-EF76-4B42-B4C2-16A1BACDC0A4}.Release|x64.ActiveCfg = Release|x64
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||||||
{C4E04D18-EF76-4B42-B4C2-16A1BACDC0A4}.Release|x64.Build.0 = Release|x64
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{C4E04D18-EF76-4B42-B4C2-16A1BACDC0A4}.Release|x64.Build.0 = Release|x64
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{70B894A9-E306-49E8-ABC2-932A952A5E5F}.Debug|Win32.ActiveCfg = Debug|Win32
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||||||
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{70B894A9-E306-49E8-ABC2-932A952A5E5F}.Debug|Win32.Build.0 = Debug|Win32
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||||||
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{70B894A9-E306-49E8-ABC2-932A952A5E5F}.Debug|x64.ActiveCfg = Debug|x64
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{70B894A9-E306-49E8-ABC2-932A952A5E5F}.Debug|x64.Build.0 = Debug|x64
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{70B894A9-E306-49E8-ABC2-932A952A5E5F}.Release|Win32.ActiveCfg = Release|Win32
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||||||
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{70B894A9-E306-49E8-ABC2-932A952A5E5F}.Release|Win32.Build.0 = Release|Win32
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{70B894A9-E306-49E8-ABC2-932A952A5E5F}.Release|x64.ActiveCfg = Release|x64
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{70B894A9-E306-49E8-ABC2-932A952A5E5F}.Release|x64.Build.0 = Release|x64
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EndGlobalSection
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EndGlobalSection
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GlobalSection(SolutionProperties) = preSolution
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GlobalSection(SolutionProperties) = preSolution
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HideSolutionNode = FALSE
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HideSolutionNode = FALSE
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@ -309,6 +319,7 @@ Global
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{C4E04D18-EF76-4B42-B4C2-16A1BACDC0A5} = {D69D5741-611F-4E14-8541-1FEE94F50B5A}
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{C4E04D18-EF76-4B42-B4C2-16A1BACDC0A5} = {D69D5741-611F-4E14-8541-1FEE94F50B5A}
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{40FB7794-D3C3-4CFE-BCF4-A80C97635682} = {D69D5741-611F-4E14-8541-1FEE94F50B5A}
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{40FB7794-D3C3-4CFE-BCF4-A80C97635682} = {D69D5741-611F-4E14-8541-1FEE94F50B5A}
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{C4E04D18-EF76-4B42-B4C2-16A1BACDC0A4} = {D69D5741-611F-4E14-8541-1FEE94F50B5A}
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{C4E04D18-EF76-4B42-B4C2-16A1BACDC0A4} = {D69D5741-611F-4E14-8541-1FEE94F50B5A}
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{70B894A9-E306-49E8-ABC2-932A952A5E5F} = {D69D5741-611F-4E14-8541-1FEE94F50B5A}
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EndGlobalSection
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EndGlobalSection
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GlobalSection(ExtensibilityGlobals) = postSolution
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GlobalSection(ExtensibilityGlobals) = postSolution
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SolutionGuid = {C320C9F2-1A8F-41D7-B02B-6338F872BCAD}
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SolutionGuid = {C320C9F2-1A8F-41D7-B02B-6338F872BCAD}
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@ -0,0 +1,210 @@
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<?xml version="1.0" encoding="utf-8"?>
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<Project DefaultTargets="Build" ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
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<ItemGroup Label="ProjectConfigurations">
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<ProjectConfiguration Include="Debug|Win32">
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<Configuration>Debug</Configuration>
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<Platform>Win32</Platform>
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</ProjectConfiguration>
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<ProjectConfiguration Include="Debug|x64">
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<Configuration>Debug</Configuration>
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<Platform>x64</Platform>
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</ProjectConfiguration>
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<ProjectConfiguration Include="Release|Win32">
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<Configuration>Release</Configuration>
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<Platform>Win32</Platform>
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</ProjectConfiguration>
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<ProjectConfiguration Include="Release|x64">
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<Configuration>Release</Configuration>
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<Platform>x64</Platform>
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</ProjectConfiguration>
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</ItemGroup>
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<PropertyGroup Label="Globals">
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<ProjectGuid>{70B894A9-E306-49E8-ABC2-932A952A5E5F}</ProjectGuid>
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<RootNamespace>testsurround</RootNamespace>
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<VisualStudioVersion Condition="'$(VisualStudioVersion)' == ''">10.0</VisualStudioVersion>
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</PropertyGroup>
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<Import Project="$(VCTargetsPath)\Microsoft.Cpp.Default.props" />
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<PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'" Label="Configuration">
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<ConfigurationType>Application</ConfigurationType>
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<PlatformToolset Condition="'$(VisualStudioVersion)' != '10.0'">$(DefaultPlatformToolset)</PlatformToolset>
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</PropertyGroup>
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<PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'" Label="Configuration">
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<ConfigurationType>Application</ConfigurationType>
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<PlatformToolset Condition="'$(VisualStudioVersion)' != '10.0'">$(DefaultPlatformToolset)</PlatformToolset>
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</PropertyGroup>
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<PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|x64'" Label="Configuration">
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<ConfigurationType>Application</ConfigurationType>
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<PlatformToolset Condition="'$(VisualStudioVersion)' != '10.0'">$(DefaultPlatformToolset)</PlatformToolset>
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</PropertyGroup>
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<PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|x64'" Label="Configuration">
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<ConfigurationType>Application</ConfigurationType>
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<PlatformToolset Condition="'$(VisualStudioVersion)' != '10.0'">$(DefaultPlatformToolset)</PlatformToolset>
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</PropertyGroup>
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<Import Project="$(VCTargetsPath)\Microsoft.Cpp.props" />
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|
<ImportGroup Label="ExtensionSettings">
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|
</ImportGroup>
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|
<ImportGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'" Label="PropertySheets">
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|
<Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" Label="LocalAppDataPlatform" />
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|
<Import Project="$(VCTargetsPath)Microsoft.CPP.UpgradeFromVC70.props" />
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|
</ImportGroup>
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|
<ImportGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'" Label="PropertySheets">
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||||||
|
<Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" Label="LocalAppDataPlatform" />
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|
<Import Project="$(VCTargetsPath)Microsoft.CPP.UpgradeFromVC70.props" />
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|
</ImportGroup>
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|
<ImportGroup Condition="'$(Configuration)|$(Platform)'=='Debug|x64'" Label="PropertySheets">
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||||||
|
<Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" Label="LocalAppDataPlatform" />
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|
<Import Project="$(VCTargetsPath)Microsoft.CPP.UpgradeFromVC70.props" />
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|
</ImportGroup>
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||||||
|
<ImportGroup Condition="'$(Configuration)|$(Platform)'=='Release|x64'" Label="PropertySheets">
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||||||
|
<Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" Label="LocalAppDataPlatform" />
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||||||
|
<Import Project="$(VCTargetsPath)Microsoft.CPP.UpgradeFromVC70.props" />
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|
</ImportGroup>
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||||||
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<PropertyGroup Label="UserMacros" />
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|
<PropertyGroup>
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||||||
|
<_ProjectFileVersion>10.0.40219.1</_ProjectFileVersion>
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||||||
|
<OutDir Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">$(SolutionDir)$(Platform)\$(Configuration)\</OutDir>
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||||||
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<IntDir Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">$(Platform)\$(Configuration)\</IntDir>
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<OutDir Condition="'$(Configuration)|$(Platform)'=='Release|x64'">$(SolutionDir)$(Platform)\$(Configuration)\</OutDir>
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<IntDir Condition="'$(Configuration)|$(Platform)'=='Release|x64'">$(Platform)\$(Configuration)\</IntDir>
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<OutDir Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">$(SolutionDir)$(Platform)\$(Configuration)\</OutDir>
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<IntDir Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">$(Platform)\$(Configuration)\</IntDir>
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<OutDir Condition="'$(Configuration)|$(Platform)'=='Debug|x64'">$(SolutionDir)$(Platform)\$(Configuration)\</OutDir>
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<IntDir Condition="'$(Configuration)|$(Platform)'=='Debug|x64'">$(Platform)\$(Configuration)\</IntDir>
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||||||
|
<CodeAnalysisRuleSet Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">AllRules.ruleset</CodeAnalysisRuleSet>
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||||||
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<CodeAnalysisRules Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'" />
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||||||
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<CodeAnalysisRuleAssemblies Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'" />
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||||||
|
<CodeAnalysisRuleSet Condition="'$(Configuration)|$(Platform)'=='Debug|x64'">AllRules.ruleset</CodeAnalysisRuleSet>
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||||||
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<CodeAnalysisRules Condition="'$(Configuration)|$(Platform)'=='Debug|x64'" />
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||||||
|
<CodeAnalysisRuleAssemblies Condition="'$(Configuration)|$(Platform)'=='Debug|x64'" />
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||||||
|
<CodeAnalysisRuleSet Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">AllRules.ruleset</CodeAnalysisRuleSet>
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||||||
|
<CodeAnalysisRules Condition="'$(Configuration)|$(Platform)'=='Release|Win32'" />
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||||||
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<CodeAnalysisRuleAssemblies Condition="'$(Configuration)|$(Platform)'=='Release|Win32'" />
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<CodeAnalysisRuleSet Condition="'$(Configuration)|$(Platform)'=='Release|x64'">AllRules.ruleset</CodeAnalysisRuleSet>
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<CodeAnalysisRules Condition="'$(Configuration)|$(Platform)'=='Release|x64'" />
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<CodeAnalysisRuleAssemblies Condition="'$(Configuration)|$(Platform)'=='Release|x64'" />
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</PropertyGroup>
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||||||
|
<ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">
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||||||
|
<Midl>
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|
<PreprocessorDefinitions>NDEBUG;%(PreprocessorDefinitions)</PreprocessorDefinitions>
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|
<MkTypLibCompatible>true</MkTypLibCompatible>
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<SuppressStartupBanner>true</SuppressStartupBanner>
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<TargetEnvironment>Win32</TargetEnvironment>
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<TypeLibraryName>.\Release/testsurround.tlb</TypeLibraryName>
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</Midl>
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<ClCompile>
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<AdditionalIncludeDirectories>$(SolutionDir)/../include;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
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<AdditionalUsingDirectories>%(AdditionalUsingDirectories)</AdditionalUsingDirectories>
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<PreprocessorDefinitions>WIN32;NDEBUG;_WINDOWS;%(PreprocessorDefinitions)</PreprocessorDefinitions>
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<RuntimeLibrary>MultiThreadedDLL</RuntimeLibrary>
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<PrecompiledHeader>
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</PrecompiledHeader>
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<PrecompiledHeaderOutputFile>.\Release/testsurround.pch</PrecompiledHeaderOutputFile>
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<WarningLevel>Level3</WarningLevel>
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</ClCompile>
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<ResourceCompile>
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<PreprocessorDefinitions>NDEBUG;%(PreprocessorDefinitions)</PreprocessorDefinitions>
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<Culture>0x0409</Culture>
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</ResourceCompile>
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<Link>
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<SubSystem>Console</SubSystem>
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</Link>
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</ItemDefinitionGroup>
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<ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Release|x64'">
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<Midl>
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|
<PreprocessorDefinitions>NDEBUG;%(PreprocessorDefinitions)</PreprocessorDefinitions>
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|
<MkTypLibCompatible>true</MkTypLibCompatible>
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<SuppressStartupBanner>true</SuppressStartupBanner>
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|
<TargetEnvironment>X64</TargetEnvironment>
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<TypeLibraryName>.\Release/testsurround.tlb</TypeLibraryName>
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</Midl>
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<ClCompile>
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<AdditionalIncludeDirectories>$(SolutionDir)/../include;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
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<AdditionalUsingDirectories>%(AdditionalUsingDirectories)</AdditionalUsingDirectories>
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<PreprocessorDefinitions>WIN32;NDEBUG;_WINDOWS;%(PreprocessorDefinitions)</PreprocessorDefinitions>
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<RuntimeLibrary>MultiThreadedDLL</RuntimeLibrary>
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<PrecompiledHeader>
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</PrecompiledHeader>
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<PrecompiledHeaderOutputFile>.\Release/testsurround.pch</PrecompiledHeaderOutputFile>
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<WarningLevel>Level3</WarningLevel>
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</ClCompile>
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<ResourceCompile>
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<PreprocessorDefinitions>NDEBUG;%(PreprocessorDefinitions)</PreprocessorDefinitions>
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<Culture>0x0409</Culture>
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</ResourceCompile>
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<Link>
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<SubSystem>Console</SubSystem>
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</Link>
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</ItemDefinitionGroup>
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<ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">
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<Midl>
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<PreprocessorDefinitions>_DEBUG;%(PreprocessorDefinitions)</PreprocessorDefinitions>
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<MkTypLibCompatible>true</MkTypLibCompatible>
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<SuppressStartupBanner>true</SuppressStartupBanner>
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<TargetEnvironment>Win32</TargetEnvironment>
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<TypeLibraryName>.\Debug/testsurround.tlb</TypeLibraryName>
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</Midl>
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<ClCompile>
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<Optimization>Disabled</Optimization>
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<AdditionalIncludeDirectories>$(SolutionDir)/../include;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
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<AdditionalUsingDirectories>%(AdditionalUsingDirectories)</AdditionalUsingDirectories>
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<PreprocessorDefinitions>WIN32;_DEBUG;_WINDOWS;%(PreprocessorDefinitions)</PreprocessorDefinitions>
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<RuntimeLibrary>MultiThreadedDLL</RuntimeLibrary>
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<WarningLevel>Level3</WarningLevel>
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<DebugInformationFormat>OldStyle</DebugInformationFormat>
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</ClCompile>
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<ResourceCompile>
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<PreprocessorDefinitions>_DEBUG;%(PreprocessorDefinitions)</PreprocessorDefinitions>
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<Culture>0x0409</Culture>
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</ResourceCompile>
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<Link>
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<GenerateDebugInformation>true</GenerateDebugInformation>
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<SubSystem>Console</SubSystem>
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</Link>
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</ItemDefinitionGroup>
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<ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Debug|x64'">
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<Midl>
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<PreprocessorDefinitions>_DEBUG;%(PreprocessorDefinitions)</PreprocessorDefinitions>
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<MkTypLibCompatible>true</MkTypLibCompatible>
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<SuppressStartupBanner>true</SuppressStartupBanner>
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<TargetEnvironment>X64</TargetEnvironment>
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<TypeLibraryName>.\Debug/testsurround.tlb</TypeLibraryName>
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</Midl>
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<ClCompile>
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<Optimization>Disabled</Optimization>
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<AdditionalIncludeDirectories>$(SolutionDir)/../include;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
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<AdditionalUsingDirectories>%(AdditionalUsingDirectories)</AdditionalUsingDirectories>
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<PreprocessorDefinitions>WIN32;_DEBUG;_WINDOWS;%(PreprocessorDefinitions)</PreprocessorDefinitions>
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<RuntimeLibrary>MultiThreadedDebugDLL</RuntimeLibrary>
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<WarningLevel>Level3</WarningLevel>
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<DebugInformationFormat>OldStyle</DebugInformationFormat>
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</ClCompile>
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<ResourceCompile>
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<PreprocessorDefinitions>_DEBUG;%(PreprocessorDefinitions)</PreprocessorDefinitions>
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<Culture>0x0409</Culture>
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</ResourceCompile>
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<Link>
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<GenerateDebugInformation>true</GenerateDebugInformation>
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<SubSystem>Console</SubSystem>
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</Link>
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</ItemDefinitionGroup>
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<ItemGroup>
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<ProjectReference Include="..\..\SDL\SDL.vcxproj">
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<Project>{81ce8daf-ebb2-4761-8e45-b71abcca8c68}</Project>
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<Private>false</Private>
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<CopyLocalSatelliteAssemblies>false</CopyLocalSatelliteAssemblies>
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<ReferenceOutputAssembly>true</ReferenceOutputAssembly>
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</ProjectReference>
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<ProjectReference Include="..\..\SDLmain\SDLmain.vcxproj">
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<Project>{da956fd3-e142-46f2-9dd5-c78bebb56b7a}</Project>
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<Private>false</Private>
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<CopyLocalSatelliteAssemblies>false</CopyLocalSatelliteAssemblies>
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<ReferenceOutputAssembly>true</ReferenceOutputAssembly>
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</ProjectReference>
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</ItemGroup>
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<ItemGroup>
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<ClCompile Include="..\..\..\Test\testsurround.c" />
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</ItemGroup>
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<Import Project="$(VCTargetsPath)\Microsoft.Cpp.targets" />
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<ImportGroup Label="ExtensionTargets">
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</ImportGroup>
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</Project>
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@ -23,6 +23,7 @@ add_executable(checkkeys checkkeys.c)
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add_executable(checkkeysthreads checkkeysthreads.c)
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add_executable(checkkeysthreads checkkeysthreads.c)
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add_executable(loopwave loopwave.c)
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add_executable(loopwave loopwave.c)
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add_executable(loopwavequeue loopwavequeue.c)
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add_executable(loopwavequeue loopwavequeue.c)
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add_executable(testsurround testsurround.c)
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add_executable(testresample testresample.c)
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add_executable(testresample testresample.c)
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add_executable(testaudioinfo testaudioinfo.c)
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add_executable(testaudioinfo testaudioinfo.c)
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@ -62,6 +62,7 @@ TARGETS = \
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testsprite2$(EXE) \
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testsprite2$(EXE) \
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testspriteminimal$(EXE) \
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testspriteminimal$(EXE) \
|
||||||
teststreaming$(EXE) \
|
teststreaming$(EXE) \
|
||||||
|
testsurround$(EXE) \
|
||||||
testthread$(EXE) \
|
testthread$(EXE) \
|
||||||
testtimer$(EXE) \
|
testtimer$(EXE) \
|
||||||
testurl$(EXE) \
|
testurl$(EXE) \
|
||||||
|
|
@ -95,6 +96,9 @@ loopwave$(EXE): $(srcdir)/loopwave.c
|
||||||
loopwavequeue$(EXE): $(srcdir)/loopwavequeue.c
|
loopwavequeue$(EXE): $(srcdir)/loopwavequeue.c
|
||||||
$(CC) -o $@ $^ $(CFLAGS) $(LIBS)
|
$(CC) -o $@ $^ $(CFLAGS) $(LIBS)
|
||||||
|
|
||||||
|
testsurround$(EXE): $(srcdir)/testsurround.c
|
||||||
|
$(CC) -o $@ $^ $(CFLAGS) $(LIBS)
|
||||||
|
|
||||||
testresample$(EXE): $(srcdir)/testresample.c
|
testresample$(EXE): $(srcdir)/testresample.c
|
||||||
$(CC) -o $@ $^ $(CFLAGS) $(LIBS)
|
$(CC) -o $@ $^ $(CFLAGS) $(LIBS)
|
||||||
|
|
||||||
|
|
|
||||||
|
|
@ -4,6 +4,7 @@ These are test programs for the SDL library:
|
||||||
checkkeys Watch the key events to check the keyboard
|
checkkeys Watch the key events to check the keyboard
|
||||||
loopwave Audio test -- loop playing a WAV file
|
loopwave Audio test -- loop playing a WAV file
|
||||||
loopwavequeue Audio test -- loop playing a WAV file with SDL_QueueAudio
|
loopwavequeue Audio test -- loop playing a WAV file with SDL_QueueAudio
|
||||||
|
testsurround Audio test -- play test tone on each audio channel
|
||||||
testaudioinfo Lists audio device capabilities
|
testaudioinfo Lists audio device capabilities
|
||||||
testerror Tests multi-threaded error handling
|
testerror Tests multi-threaded error handling
|
||||||
testfile Tests RWops layer
|
testfile Tests RWops layer
|
||||||
|
|
|
||||||
|
|
@ -0,0 +1,202 @@
|
||||||
|
/*
|
||||||
|
Copyright (C) 1997-2021 Sam Lantinga <slouken@libsdl.org>
|
||||||
|
|
||||||
|
This software is provided 'as-is', without any express or implied
|
||||||
|
warranty. In no event will the authors be held liable for any damages
|
||||||
|
arising from the use of this software.
|
||||||
|
|
||||||
|
Permission is granted to anyone to use this software for any purpose,
|
||||||
|
including commercial applications, and to alter it and redistribute it
|
||||||
|
freely.
|
||||||
|
*/
|
||||||
|
|
||||||
|
/* Program to test surround sound audio channels */
|
||||||
|
#include "SDL_config.h"
|
||||||
|
|
||||||
|
#include <stdio.h>
|
||||||
|
#include <stdlib.h>
|
||||||
|
|
||||||
|
#include "SDL.h"
|
||||||
|
|
||||||
|
static int total_channels;
|
||||||
|
static int active_channel;
|
||||||
|
|
||||||
|
#define SAMPLE_RATE_HZ 48000
|
||||||
|
#define CHANNEL_TEST_TIME_SEC 5
|
||||||
|
#define MAX_AMPLITUDE SDL_MAX_SINT16
|
||||||
|
|
||||||
|
#define SINE_FREQ_HZ 500
|
||||||
|
#define LFE_SINE_FREQ_HZ 50
|
||||||
|
|
||||||
|
/* The channel layout is defined in SDL_audio.h */
|
||||||
|
const char*
|
||||||
|
get_channel_name(int channel_index, int channel_count)
|
||||||
|
{
|
||||||
|
switch (channel_index) {
|
||||||
|
case 0:
|
||||||
|
return "Front Left";
|
||||||
|
case 1:
|
||||||
|
return "Front Right";
|
||||||
|
case 2:
|
||||||
|
switch (channel_count) {
|
||||||
|
case 3:
|
||||||
|
return "Low Frequency Effects";
|
||||||
|
case 4:
|
||||||
|
return "Back Left";
|
||||||
|
default:
|
||||||
|
return "Front Center";
|
||||||
|
}
|
||||||
|
case 3:
|
||||||
|
switch (channel_count) {
|
||||||
|
case 4:
|
||||||
|
return "Back Right";
|
||||||
|
case 5:
|
||||||
|
return "Back Left";
|
||||||
|
default:
|
||||||
|
return "Low Frequency Effects";
|
||||||
|
}
|
||||||
|
case 4:
|
||||||
|
switch (channel_count) {
|
||||||
|
case 5:
|
||||||
|
return "Back Right";
|
||||||
|
case 7:
|
||||||
|
return "Back Center";
|
||||||
|
case 6:
|
||||||
|
case 8:
|
||||||
|
return "Back Left";
|
||||||
|
}
|
||||||
|
case 5:
|
||||||
|
switch (channel_count) {
|
||||||
|
case 7:
|
||||||
|
return "Back Left";
|
||||||
|
case 6:
|
||||||
|
case 8:
|
||||||
|
return "Back Right";
|
||||||
|
}
|
||||||
|
case 6:
|
||||||
|
switch (channel_count) {
|
||||||
|
case 7:
|
||||||
|
return "Back Right";
|
||||||
|
case 8:
|
||||||
|
return "Side Left";
|
||||||
|
}
|
||||||
|
case 7:
|
||||||
|
return "Side Right";
|
||||||
|
}
|
||||||
|
|
||||||
|
return NULL;
|
||||||
|
}
|
||||||
|
|
||||||
|
SDL_bool
|
||||||
|
is_lfe_channel(int channel_index, int channel_count)
|
||||||
|
{
|
||||||
|
return (channel_count == 3 && channel_index == 2) || (channel_count >= 6 && channel_index == 3);
|
||||||
|
}
|
||||||
|
|
||||||
|
void SDLCALL
|
||||||
|
fill_buffer(void* unused, Uint8* stream, int len)
|
||||||
|
{
|
||||||
|
Sint16* buffer = (Sint16*)stream;
|
||||||
|
int samples = len / sizeof(int16_t);
|
||||||
|
static int total_samples = 0;
|
||||||
|
int i;
|
||||||
|
|
||||||
|
SDL_memset(stream, 0, len);
|
||||||
|
|
||||||
|
/* This can happen for a short time when switching devices */
|
||||||
|
if (active_channel == total_channels) {
|
||||||
|
return;
|
||||||
|
}
|
||||||
|
|
||||||
|
/* Play a sine wave on the active channel only */
|
||||||
|
for (i = active_channel; i < samples; i += total_channels) {
|
||||||
|
float time = (float)total_samples++ / SAMPLE_RATE_HZ;
|
||||||
|
int sine_freq = is_lfe_channel(active_channel, total_channels) ? LFE_SINE_FREQ_HZ : SINE_FREQ_HZ;
|
||||||
|
int amplitude;
|
||||||
|
|
||||||
|
/* Gradually ramp up and down to avoid audible pops when switching between channels */
|
||||||
|
if (total_samples < SAMPLE_RATE_HZ) {
|
||||||
|
amplitude = total_samples * MAX_AMPLITUDE / SAMPLE_RATE_HZ;
|
||||||
|
} else if (total_samples > (CHANNEL_TEST_TIME_SEC - 1) * SAMPLE_RATE_HZ) {
|
||||||
|
amplitude = (CHANNEL_TEST_TIME_SEC * SAMPLE_RATE_HZ - total_samples) * MAX_AMPLITUDE / SAMPLE_RATE_HZ;
|
||||||
|
} else {
|
||||||
|
amplitude = MAX_AMPLITUDE;
|
||||||
|
}
|
||||||
|
|
||||||
|
buffer[i] = (Sint16)(SDL_sin(6.283185f * sine_freq * time) * amplitude);
|
||||||
|
|
||||||
|
/* Reset our state for next callback if this channel test is finished */
|
||||||
|
if (total_samples == CHANNEL_TEST_TIME_SEC * SAMPLE_RATE_HZ) {
|
||||||
|
total_samples = 0;
|
||||||
|
active_channel++;
|
||||||
|
break;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
int
|
||||||
|
main(int argc, char *argv[])
|
||||||
|
{
|
||||||
|
int i;
|
||||||
|
|
||||||
|
/* Enable standard application logging */
|
||||||
|
SDL_LogSetPriority(SDL_LOG_CATEGORY_APPLICATION, SDL_LOG_PRIORITY_INFO);
|
||||||
|
|
||||||
|
if (SDL_Init(SDL_INIT_AUDIO) < 0) {
|
||||||
|
SDL_LogError(SDL_LOG_CATEGORY_APPLICATION, "Couldn't initialize SDL: %s\n", SDL_GetError());
|
||||||
|
return 1;
|
||||||
|
}
|
||||||
|
|
||||||
|
/* Show the list of available drivers */
|
||||||
|
SDL_Log("Available audio drivers:");
|
||||||
|
for (i = 0; i < SDL_GetNumAudioDrivers(); ++i) {
|
||||||
|
SDL_Log("%i: %s", i, SDL_GetAudioDriver(i));
|
||||||
|
}
|
||||||
|
|
||||||
|
SDL_Log("Using audio driver: %s\n", SDL_GetCurrentAudioDriver());
|
||||||
|
|
||||||
|
for (i = 0; i < SDL_GetNumAudioDevices(0); i++) {
|
||||||
|
const char *devname = SDL_GetAudioDeviceName(i, 0);
|
||||||
|
int j;
|
||||||
|
SDL_AudioSpec spec;
|
||||||
|
SDL_AudioDeviceID dev;
|
||||||
|
|
||||||
|
if (SDL_GetAudioDeviceSpec(i, 0, &spec) != 0) {
|
||||||
|
SDL_LogError(SDL_LOG_CATEGORY_APPLICATION, "SDL_GetAudioSpec() failed: %s\n", SDL_GetError());
|
||||||
|
continue;
|
||||||
|
}
|
||||||
|
|
||||||
|
spec.freq = SAMPLE_RATE_HZ;
|
||||||
|
spec.format = AUDIO_S16SYS;
|
||||||
|
spec.samples = 4096;
|
||||||
|
spec.callback = fill_buffer;
|
||||||
|
|
||||||
|
dev = SDL_OpenAudioDevice(devname, 0, &spec, NULL, 0);
|
||||||
|
if (dev == 0) {
|
||||||
|
SDL_LogError(SDL_LOG_CATEGORY_APPLICATION, "SDL_OpenAudioDevice() failed: %s\n", SDL_GetError());
|
||||||
|
continue;
|
||||||
|
}
|
||||||
|
|
||||||
|
SDL_Log("Testing audio device: %s (%d channels)\n", devname, spec.channels);
|
||||||
|
|
||||||
|
/* These are used by the fill_buffer callback */
|
||||||
|
total_channels = spec.channels;
|
||||||
|
active_channel = 0;
|
||||||
|
|
||||||
|
SDL_PauseAudioDevice(dev, 0);
|
||||||
|
|
||||||
|
for (j = 0; j < total_channels; j++) {
|
||||||
|
int sine_freq = is_lfe_channel(j, total_channels) ? LFE_SINE_FREQ_HZ : SINE_FREQ_HZ;
|
||||||
|
|
||||||
|
SDL_Log("Playing %d Hz test tone on channel: %s\n", sine_freq, get_channel_name(j, total_channels));
|
||||||
|
|
||||||
|
/* fill_buffer() will increment the active channel */
|
||||||
|
SDL_Delay(CHANNEL_TEST_TIME_SEC * 1000);
|
||||||
|
}
|
||||||
|
|
||||||
|
SDL_CloseAudioDevice(dev);
|
||||||
|
}
|
||||||
|
|
||||||
|
SDL_Quit();
|
||||||
|
return 0;
|
||||||
|
}
|
||||||
Loading…
Reference in New Issue