C++ (Cpp) initAndCheckGlExtensions 예제들

예제 #1

파일: ViewerGLPrivate.cpp 프로젝트: ChristianHeckl/Natron

void
ViewerGL::Implementation::initializeGL()
{
    // always running in the main thread
    assert( qApp && qApp->thread() == QThread::currentThread() );
    _this->makeCurrent();
    supportsOpenGL = initAndCheckGlExtensions();
    if (!supportsOpenGL) {
        return;
    }
    displayTextures[0].reset( new Texture(GL_TEXTURE_2D, GL_LINEAR, GL_NEAREST, GL_CLAMP_TO_EDGE) );
    displayTextures[1].reset( new Texture(GL_TEXTURE_2D, GL_LINEAR, GL_NEAREST, GL_CLAMP_TO_EDGE) );


    // glGenVertexArrays(1, &_vaoId);
    glGenBuffers(1, &this->vboVerticesId);
    glGenBuffers(1, &this->vboTexturesId);
    glGenBuffers(1, &this->iboTriangleStripId);

    glBindBuffer(GL_ARRAY_BUFFER, this->vboTexturesId);
    glBufferData(GL_ARRAY_BUFFER, 32 * sizeof(GLfloat), 0, GL_DYNAMIC_DRAW);

    glBindBuffer(GL_ARRAY_BUFFER, this->vboVerticesId);
    glBufferData(GL_ARRAY_BUFFER, 32 * sizeof(GLfloat), 0, GL_DYNAMIC_DRAW);
    glBindBuffer(GL_ARRAY_BUFFER, 0);

    glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, this->iboTriangleStripId);
    glBufferData(GL_ELEMENT_ARRAY_BUFFER, 28 * sizeof(GLubyte), triangleStrip, GL_STATIC_DRAW);

    glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, 0);
    glCheckError();

    initializeCheckerboardTexture(true);

    if (this->supportsGLSL) {
        _this->initShaderGLSL();
        glCheckError();
    }

    glCheckError();
}

예제 #2

파일: ViewerGLPrivate.cpp 프로젝트: cf-ssharma/Natron

void
ViewerGL::Implementation::initializeGL()
{
    // always running in the main thread
    assert( qApp && qApp->thread() == QThread::currentThread() );
    _this->makeCurrent();
    initAndCheckGlExtensions();

    int format, internalFormat, glType;
    Texture::getRecommendedTexParametersForRGBAByteTexture(&format, &internalFormat, &glType);
    displayTextures[0].texture.reset( new Texture(GL_TEXTURE_2D, GL_LINEAR, GL_NEAREST, GL_CLAMP_TO_EDGE, Texture::eDataTypeByte, format, internalFormat, glType) );
    displayTextures[1].texture.reset( new Texture(GL_TEXTURE_2D, GL_LINEAR, GL_NEAREST, GL_CLAMP_TO_EDGE, Texture::eDataTypeByte, format, internalFormat, glType) );


    // glGenVertexArrays(1, &_vaoId);
    glGenBuffers(1, &this->vboVerticesId);
    glGenBuffers(1, &this->vboTexturesId);
    glGenBuffers(1, &this->iboTriangleStripId);

    glBindBuffer(GL_ARRAY_BUFFER, this->vboTexturesId);
    glBufferData(GL_ARRAY_BUFFER, 32 * sizeof(GLfloat), 0, GL_DYNAMIC_DRAW);

    glBindBuffer(GL_ARRAY_BUFFER, this->vboVerticesId);
    glBufferData(GL_ARRAY_BUFFER, 32 * sizeof(GLfloat), 0, GL_DYNAMIC_DRAW);
    glBindBuffer(GL_ARRAY_BUFFER, 0);

    glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, this->iboTriangleStripId);
    glBufferData(GL_ELEMENT_ARRAY_BUFFER, 28 * sizeof(GLubyte), triangleStrip, GL_STATIC_DRAW);

    glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, 0);
    glCheckError();

    initializeCheckerboardTexture(true);

    _this->initShaderGLSL();

    glCheckError();
}