function ToolkitGdTest::getPixelColor

Function for finding a pixel's RGBa values.

File

core/tests/Drupal/KernelTests/Core/Image/ToolkitGdTest.php, line 97

Class

ToolkitGdTest

Tests for the GD image toolkit.

Namespace

Code

public function getPixelColor(ImageInterface $image, int $x, int $y) : array {
    $toolkit = $image->getToolkit();
    $color_index = imagecolorat($toolkit->getImage(), $x, $y);
    $transparent_index = imagecolortransparent($toolkit->getImage());
    if ($color_index == $transparent_index) {
        return [
            0,
            0,
            0,
            127,
        ];
    }
    return array_values(imagecolorsforindex($toolkit->getImage(), $color_index));
}