C++ Nullable::SetNull方法代码示例

本文整理汇总了C++中dom::Nullable::SetNull方法的典型用法代码示例。如果您正苦于以下问题：C++ Nullable::SetNull方法的具体用法？C++ Nullable::SetNull怎么用？C++ Nullable::SetNull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类dom::Nullable的用法示例。

在下文中一共展示了Nullable::SetNull方法的9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: LinkInfo

void
WebGLProgram::GetActiveUniformBlockParam(GLuint uniformBlockIndex, GLenum pname,
                                         dom::Nullable<dom::OwningUnsignedLongOrUint32ArrayOrBoolean>& retval) const
{
    retval.SetNull();
    if (!IsLinked()) {
        mContext->ErrorInvalidOperation("getActiveUniformBlockParameter: `program` must be linked.");
        return;
    }

    const webgl::LinkedProgramInfo* linkInfo = LinkInfo();
    GLuint uniformBlockCount = (GLuint)linkInfo->uniformBlocks.size();
    if (uniformBlockIndex >= uniformBlockCount) {
        mContext->ErrorInvalidValue("getActiveUniformBlockParameter: index %u invalid.", uniformBlockIndex);
        return;
    }

    gl::GLContext* gl = mContext->GL();
    GLint param = 0;

    switch (pname) {
    case LOCAL_GL_UNIFORM_BLOCK_REFERENCED_BY_VERTEX_SHADER:
    case LOCAL_GL_UNIFORM_BLOCK_REFERENCED_BY_FRAGMENT_SHADER:
        gl->fGetActiveUniformBlockiv(mGLName, uniformBlockIndex, pname, &param);
        retval.SetValue().SetAsBoolean() = (param != 0);
        return;

    case LOCAL_GL_UNIFORM_BLOCK_BINDING:
    case LOCAL_GL_UNIFORM_BLOCK_DATA_SIZE:
    case LOCAL_GL_UNIFORM_BLOCK_ACTIVE_UNIFORMS:
        gl->fGetActiveUniformBlockiv(mGLName, uniformBlockIndex, pname, &param);
        retval.SetValue().SetAsUnsignedLong() = param;
        return;
    }
}

开发者ID:Danielzac，项目名称:gecko-dev，代码行数:35，代码来源:WebGLProgram.cpp

示例2: MakeContextCurrent

void
WebGL2Context::GetActiveUniformBlockParameter(JSContext* cx, WebGLProgram* program,
                                              GLuint uniformBlockIndex, GLenum pname,
                                              dom::Nullable<dom::OwningUnsignedLongOrUint32ArrayOrBoolean>& retval,
                                              ErrorResult& rv)
{
    retval.SetNull();
    if (IsContextLost())
        return;

    if (!ValidateObject("getActiveUniformBlockParameter: program", program))
        return;

    MakeContextCurrent();

    switch(pname) {
    case LOCAL_GL_UNIFORM_BLOCK_REFERENCED_BY_VERTEX_SHADER:
    case LOCAL_GL_UNIFORM_BLOCK_REFERENCED_BY_FRAGMENT_SHADER:
    case LOCAL_GL_UNIFORM_BLOCK_BINDING:
    case LOCAL_GL_UNIFORM_BLOCK_DATA_SIZE:
    case LOCAL_GL_UNIFORM_BLOCK_ACTIVE_UNIFORMS:
        program->GetActiveUniformBlockParam(uniformBlockIndex, pname, retval);
        return;

    case LOCAL_GL_UNIFORM_BLOCK_ACTIVE_UNIFORM_INDICES:
        program->GetActiveUniformBlockActiveUniforms(cx, uniformBlockIndex, retval, rv);
        return;
    }

    ErrorInvalidEnumInfo("getActiveUniformBlockParameter: parameter", pname);
}

开发者ID:bolt-dev，项目名称:gecko-dev，代码行数:31，代码来源:WebGL2ContextUniforms.cpp

示例3: WebGLExtensionID

void
WebGLContext::GetSupportedExtensions(JSContext* cx,
                                     dom::Nullable< nsTArray<nsString> >& retval)
{
    retval.SetNull();
    if (IsContextLost())
        return;

    nsTArray<nsString>& arr = retval.SetValue();

    for (size_t i = 0; i < size_t(WebGLExtensionID::Max); i++) {
        WebGLExtensionID extension = WebGLExtensionID(i);

        if (IsExtensionSupported(cx, extension)) {
            const char* extStr = GetExtensionString(extension);
            arr.AppendElement(NS_ConvertUTF8toUTF16(extStr));
        }
    }

    /**
     * We keep backward compatibility for these deprecated vendor-prefixed
     * alias. Do not add new ones anymore. Hide it behind the
     * webgl.enable-draft-extensions flag instead.
     */
    if (IsExtensionSupported(cx, WebGLExtensionID::WEBGL_lose_context))
        arr.AppendElement(NS_LITERAL_STRING("MOZ_WEBGL_lose_context"));
    if (IsExtensionSupported(cx, WebGLExtensionID::WEBGL_compressed_texture_s3tc))
        arr.AppendElement(NS_LITERAL_STRING("MOZ_WEBGL_compressed_texture_s3tc"));
    if (IsExtensionSupported(cx, WebGLExtensionID::WEBGL_compressed_texture_atc))
        arr.AppendElement(NS_LITERAL_STRING("MOZ_WEBGL_compressed_texture_atc"));
    if (IsExtensionSupported(cx, WebGLExtensionID::WEBGL_compressed_texture_pvrtc))
        arr.AppendElement(NS_LITERAL_STRING("MOZ_WEBGL_compressed_texture_pvrtc"));
    if (IsExtensionSupported(cx, WebGLExtensionID::WEBGL_depth_texture))
        arr.AppendElement(NS_LITERAL_STRING("MOZ_WEBGL_depth_texture"));
}

开发者ID:70599，项目名称:Waterfox，代码行数:35，代码来源:WebGLContextExtensions.cpp

示例4: ErrorInvalidEnumInfo

void
WebGL2Context::GetActiveUniforms(WebGLProgram* program,
                                 const dom::Sequence<GLuint>& uniformIndices,
                                 GLenum pname,
                                 dom::Nullable< nsTArray<GLint> >& retval)
{
    retval.SetNull();
    if (IsContextLost())
        return;

    if (pname == LOCAL_GL_UNIFORM_NAME_LENGTH) {
        ErrorInvalidEnumInfo("getActiveUniforms: pname", pname);
        return;
    }

    if (!ValidateObject("getActiveUniforms: program", program))
        return;

    size_t count = uniformIndices.Length();
    if (!count)
        return;

    GLuint progname = program->mGLName;
    nsTArray<GLint>& arr = retval.SetValue();
    arr.SetLength(count);

    MakeContextCurrent();
    gl->fGetActiveUniformsiv(progname, count, uniformIndices.Elements(), pname,
                             arr.Elements());
}

开发者ID:bolt-dev，项目名称:gecko-dev，代码行数:30，代码来源:WebGL2ContextUniforms.cpp

示例5: name

void
WebGL2Context::GetUniformIndices(WebGLProgram* program,
                                 const dom::Sequence<nsString>& uniformNames,
                                 dom::Nullable< nsTArray<GLuint> >& retval)
{
    retval.SetNull();
    if (IsContextLost())
        return;

    if (!ValidateObject("getUniformIndices: program", program))
        return;

    if (!uniformNames.Length())
        return;

    GLuint progname = program->mGLName;
    size_t count = uniformNames.Length();
    nsTArray<GLuint>& arr = retval.SetValue();

    MakeContextCurrent();

    for (size_t n = 0; n < count; n++) {
        NS_LossyConvertUTF16toASCII name(uniformNames[n]);
        //        const GLchar* glname = name.get();
        const GLchar* glname = nullptr;
        name.BeginReading(glname);

        GLuint index = 0;
        gl->fGetUniformIndices(progname, 1, &glname, &index);
        arr.AppendElement(index);
    }
}

开发者ID:Jar-win，项目名称:Waterfox，代码行数:32，代码来源:WebGL2ContextUniforms.cpp

示例6: funcScope

void WebGL2Context::GetUniformIndices(
    const WebGLProgram& program, const dom::Sequence<nsString>& uniformNames,
    dom::Nullable<nsTArray<GLuint> >& retval) {
  const FuncScope funcScope(*this, "getUniformIndices");
  retval.SetNull();
  if (IsContextLost()) return;

  if (!ValidateObject("program", program)) return;

  if (!uniformNames.Length()) return;

  program.GetUniformIndices(uniformNames, retval);
}

开发者ID:Noctem，项目名称:gecko-dev，代码行数:13，代码来源:WebGL2ContextUniforms.cpp

示例7:

void
WebGL2Context::GetUniformIndices(WebGLProgram* program,
                                 const dom::Sequence<nsString>& uniformNames,
                                 dom::Nullable< nsTArray<GLuint> >& retval)
{
    retval.SetNull();
    if (IsContextLost())
        return;

    if (!ValidateObject("getUniformIndices: program", program))
        return;

    if (!uniformNames.Length())
        return;

    program->GetUniformIndices(uniformNames, retval);
}

开发者ID:subsevenx2001，项目名称:gecko-dev，代码行数:17，代码来源:WebGL2ContextUniforms.cpp

示例8: ErrorInvalidValue

/* This doesn't belong here. It's part of state querying */
void
WebGL2Context::GetIndexedParameter(GLenum target, GLuint index,
                                   dom::Nullable<dom::OwningWebGLBufferOrLongLong>& retval)
{
    retval.SetNull();
    if (IsContextLost())
        return;

    GLint64 data = 0;

    MakeContextCurrent();

    switch (target) {
    case LOCAL_GL_TRANSFORM_FEEDBACK_BUFFER_BINDING:
        if (index >= mGLMaxTransformFeedbackSeparateAttribs)
            return ErrorInvalidValue("getIndexedParameter: index should be less than "
                                     "MAX_TRANSFORM_FEEDBACK_SEPARATE_ATTRIBS");

        retval.SetValue().SetAsWebGLBuffer() =
            mBoundTransformFeedbackBuffers[index].get();
        return;

    case LOCAL_GL_UNIFORM_BUFFER_BINDING:
        if (index >= mGLMaxUniformBufferBindings)
            return ErrorInvalidValue("getIndexedParameter: index should be than "
                                     "MAX_UNIFORM_BUFFER_BINDINGS");

        retval.SetValue().SetAsWebGLBuffer() = mBoundUniformBuffers[index].get();
        return;

    case LOCAL_GL_TRANSFORM_FEEDBACK_BUFFER_START:
    case LOCAL_GL_TRANSFORM_FEEDBACK_BUFFER_SIZE:
    case LOCAL_GL_UNIFORM_BUFFER_START:
    case LOCAL_GL_UNIFORM_BUFFER_SIZE:
        gl->fGetInteger64i_v(target, index, &data);
        retval.SetValue().SetAsLongLong() = data;
        return;
    }

    ErrorInvalidEnumInfo("getIndexedParameter: target", target);
}

开发者ID:bolt-dev，项目名称:gecko-dev，代码行数:42，代码来源:WebGL2ContextUniforms.cpp

示例9: WebGLExtensionID

void
WebGLContext::GetSupportedExtensions(dom::Nullable< nsTArray<nsString> >& retval,
                                     dom::CallerType callerType)
{
    retval.SetNull();
    if (IsContextLost())
        return;

    nsTArray<nsString>& arr = retval.SetValue();

    for (size_t i = 0; i < size_t(WebGLExtensionID::Max); i++) {
        const auto extension = WebGLExtensionID(i);
        if (extension == WebGLExtensionID::MOZ_debug)
            continue; // Hide MOZ_debug from this list.

        if (IsExtensionSupported(callerType, extension)) {
            const char* extStr = GetExtensionString(extension);
            arr.AppendElement(NS_ConvertUTF8toUTF16(extStr));
        }
    }
}

开发者ID:luke-chang，项目名称:gecko-1，代码行数:21，代码来源:WebGLContextExtensions.cpp

注：本文中的dom::Nullable::SetNull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。