imx6 更新纹理-私有接口 glTexDirectVIVMap glTexDirectInvalidateVIV

imx6 viv GPU 更新纹理私有接口

 

void mapFrame2Texture(GLvoid *pvAddr, const GLuint * pAddr)
{
    DEBUG_LOG(" mapFrame2Texture  - vaddr %p ", pvAddr);
    QOpenGLContext *glcontext = QOpenGLContext::currentContext();
    if (glcontext == 0) {
        qWarning() << Q_FUNC_INFO << "no QOpenGLContext::currentContext() => return 0";
        return ;
    }

    static PFNGLTEXDIRECTVIVMAPPROC glTexDirectVIVMap_LOCAL = 0;

    if (glTexDirectVIVMap_LOCAL == 0 ) {
        glTexDirectVIVMap_LOCAL = reinterpret_cast<PFNGLTEXDIRECTVIVMAPPROC>(glcontext->getProcAddress("glTexDirectVIVMap"));
    }
    if (glTexDirectVIVMap_LOCAL == 0 ) {
        qWarning() << Q_FUNC_INFO << "couldn't find \"glTexDirectVIVMap\" and/or \"glTexDirectInvalidateVIV\" => do nothing and return";
        return ;
    }

    static PFNGLTEXDIRECTINVALIDATEVIVPROC glTexDirectInvalidateVIV_LOCAL = 0;

    if ( glTexDirectInvalidateVIV_LOCAL == 0) {
         glTexDirectInvalidateVIV_LOCAL = reinterpret_cast<PFNGLTEXDIRECTINVALIDATEVIVPROC>(glcontext->getProcAddress("glTexDirectInvalidateVIV"));
    }
    if ( glTexDirectInvalidateVIV_LOCAL == 0) {
        qWarning() << Q_FUNC_INFO << "couldn't find \"glTexDirectVIVMap\" and/or \"glTexDirectInvalidateVIV\" => do nothing and return";
        return ;
    }

    /////////////////////////////////////////////////////////////////////////
    glTexDirectVIVMap_LOCAL(GL_TEXTURE_2D, SRC_V4L2_FRAME_WIDTH,
         SRC_V4L2_FRAME_HEIGHT, GPUPAINT_FMT,
          &pvAddr,
          pAddr
      );

    glTexDirectInvalidateVIV_LOCAL(GL_TEXTURE_2D);

}