C++ (Cpp) OwnPtrWillBeRawPtr::initializeNewContext Examples

Example #1

File: WebGL2RenderingContext.cpp Project: dstockwell/blink

PassOwnPtrWillBeRawPtr<CanvasRenderingContext> WebGL2RenderingContext::Factory::create(HTMLCanvasElement* canvas, const CanvasContextCreationAttributes& attrs, Document&)
{
    if (!RuntimeEnabledFeatures::unsafeES3APIsEnabled()) {
        canvas->dispatchEvent(WebGLContextEvent::create(EventTypeNames::webglcontextcreationerror, false, true, "Creation of WebGL2 contexts disabled."));
        return nullptr;
    }

    WebGLContextAttributes attributes = toWebGLContextAttributes(attrs);
    OwnPtr<WebGraphicsContext3D> context(createWebGraphicsContext3D(canvas, attributes, 2));
    if (!context)
        return nullptr;
    OwnPtr<Extensions3DUtil> extensionsUtil = Extensions3DUtil::create(context.get());
    if (!extensionsUtil)
        return nullptr;
    if (extensionsUtil->supportsExtension("GL_EXT_debug_marker")) {
        String contextLabel(String::format("WebGL2RenderingContext-%p", context.get()));
        context->pushGroupMarkerEXT(contextLabel.ascii().data());
    }

    OwnPtrWillBeRawPtr<WebGL2RenderingContext> renderingContext = adoptPtrWillBeNoop(new WebGL2RenderingContext(canvas, context.release(), attributes));

    if (!renderingContext->drawingBuffer()) {
        canvas->dispatchEvent(WebGLContextEvent::create(EventTypeNames::webglcontextcreationerror, false, true, "Could not create a WebGL2 context."));
        return nullptr;
    }

    renderingContext->initializeNewContext();
    renderingContext->registerContextExtensions();

    return renderingContext.release();
}