当前位置: 首页>>代码示例>>C++>>正文


C++ TMap::at方法代码示例

本文整理汇总了C++中TMap::at方法的典型用法代码示例。如果您正苦于以下问题:C++ TMap::at方法的具体用法?C++ TMap::at怎么用?C++ TMap::at使用的例子?那么, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在TMap的用法示例。


在下文中一共展示了TMap::at方法的1个代码示例,这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞,您的评价将有助于系统推荐出更棒的C++代码示例。

示例1: outputHLSLSamplerUniformGroup

void UniformHLSL::outputHLSLSamplerUniformGroup(
    TInfoSinkBase &out,
    const HLSLTextureSamplerGroup textureGroup,
    const TVector<const TIntermSymbol *> &group,
    const TMap<const TIntermSymbol *, TString> &samplerInStructSymbolsToAPINames,
    unsigned int *groupTextureRegisterIndex)
{
    if (group.empty())
    {
        return;
    }
    unsigned int groupRegisterCount = 0;
    for (const TIntermSymbol *uniform : group)
    {
        const TType &type   = uniform->getType();
        const TString &name = uniform->getSymbol();
        unsigned int registerCount;

        // The uniform might be just a regular sampler or one extracted from a struct.
        unsigned int samplerArrayIndex = 0u;
        const Uniform *uniformByName = findUniformByName(name);
        if (uniformByName)
        {
            samplerArrayIndex = assignUniformRegister(type, name, &registerCount);
        }
        else
        {
            ASSERT(samplerInStructSymbolsToAPINames.find(uniform) !=
                   samplerInStructSymbolsToAPINames.end());
            samplerArrayIndex = assignSamplerInStructUniformRegister(
                type, samplerInStructSymbolsToAPINames.at(uniform), &registerCount);
        }
        groupRegisterCount += registerCount;

        if (type.isArray())
        {
            out << "static const uint " << DecorateIfNeeded(uniform->getName()) << ArrayString(type)
                << " = {";
            for (unsigned int i = 0u; i < type.getArraySize(); ++i)
            {
                if (i > 0u)
                    out << ", ";
                out << (samplerArrayIndex + i);
            }
            out << "};\n";
        }
        else
        {
            out << "static const uint " << DecorateIfNeeded(uniform->getName()) << " = "
                << samplerArrayIndex << ";\n";
        }
    }
    TString suffix = TextureGroupSuffix(textureGroup);
    // Since HLSL_TEXTURE_2D is the first group, it has a fixed offset of zero.
    if (textureGroup != HLSL_TEXTURE_2D)
    {
        out << "static const uint textureIndexOffset" << suffix << " = "
            << (*groupTextureRegisterIndex) << ";\n";
        out << "static const uint samplerIndexOffset" << suffix << " = "
            << (*groupTextureRegisterIndex) << ";\n";
    }
    out << "uniform " << TextureString(textureGroup) << " textures" << suffix << "["
        << groupRegisterCount << "]"
        << " : register(t" << (*groupTextureRegisterIndex) << ");\n";
    out << "uniform " << SamplerString(textureGroup) << " samplers" << suffix << "["
        << groupRegisterCount << "]"
        << " : register(s" << (*groupTextureRegisterIndex) << ");\n";
    *groupTextureRegisterIndex += groupRegisterCount;
}
开发者ID:MichaelKohler,项目名称:gecko-dev,代码行数:69,代码来源:UniformHLSL.cpp


注:本文中的TMap::at方法示例由纯净天空整理自Github/MSDocs等开源代码及文档管理平台,相关代码片段筛选自各路编程大神贡献的开源项目,源码版权归原作者所有,传播和使用请参考对应项目的License;未经允许,请勿转载。