GameBoy\Core::drawToCanvas PHP Метод

    public function drawToCanvas()
    {
        //Draw the frame buffer to the canvas:
        if (Settings::$frameskipAmout == 0 || $this->frameCount > 0) {
            //Copy and convert the framebuffer data to the CanvasPixelArray format.
            $bufferIndex = $this->pixelCount;
            $canvasIndex = $this->rgbCount;
            if ($this->drawContext->colorEnabled) {
                // Generate colored CanvasBuffer Version
                while ($canvasIndex > 3) {
                    //Red
                    $this->canvasBuffer[$canvasIndex -= 4] = $this->frameBuffer[--$bufferIndex] >> 16 & 0xff;
                    //Green
                    $this->canvasBuffer[$canvasIndex + 1] = $this->frameBuffer[$bufferIndex] >> 8 & 0xff;
                    //Blue
                    $this->canvasBuffer[$canvasIndex + 2] = $this->frameBuffer[$bufferIndex] & 0xff;
                }
            } else {
                // Generate black&white CanvasBuffer Version
                while ($bufferIndex > 0) {
                    $r = $this->frameBuffer[--$bufferIndex] >> 16 & 0xff;
                    $g = $this->frameBuffer[$bufferIndex] >> 8 & 0xff;
                    $b = $this->frameBuffer[$bufferIndex] & 0xff;
                    // 350 is a good threshold for black and white
                    if ($r + $g + $b > 350) {
                        $this->canvasBuffer[$bufferIndex] = true;
                    } else {
                        $this->canvasBuffer[$bufferIndex] = false;
                    }
                }
            }
            //Draw out the CanvasPixelArray data:
            $this->drawContext->draw($this->canvasBuffer);
            if (Settings::$frameskipAmout > 0) {
                //Decrement the frameskip counter:
                $this->frameCount -= Settings::$frameskipAmout;
            }
        } else {
            //Reset the frameskip counter:
            $this->frameCount += Settings::$frameskipBaseFactor;
        }
    }