public static function color_pixel_delta(&$base_img, &$compare_img, &$x, &$y)
{
$color = false;
// for now we set to true when it should change, but ultimately should return a color
$check_points = array(array($x + 1, $y), array($x - 1, $y), array($x, $y + 1), array($x, $y - 1));
foreach ($check_points as $point_r) {
if (pts_image::rgb_int_diff(pts_image::rgb_gd_color_at($base_img, $point_r[0], $point_r[1]), pts_image::rgb_gd_color_at($compare_img, $point_r[0], $point_r[1])) > 12) {
$color = array($point_r[0], $point_r[1]);
break;
}
}
return $color;
}
public static function run($args)
{
$result = $args[0];
$result_file = new pts_result_file($result);
$result_file_identifiers = $result_file->get_system_identifiers();
if (count($result_file_identifiers) < 2) {
echo PHP_EOL . 'There are not multiple test runs in this result file.' . PHP_EOL;
return false;
}
$base_identifier = pts_user_io::prompt_text_menu('Select the base test run', $result_file_identifiers);
$base_select = new pts_result_merge_select($result, $base_identifier);
$compare_identifier = pts_user_io::prompt_text_menu('Select the test run to compare', $result_file_identifiers);
$compare_select = new pts_result_merge_select($result, $compare_identifier);
do {
$extract_to = 'iqc-analyze-' . rand(100, 999);
} while (is_dir(PTS_SAVE_RESULTS_PATH . $extract_to));
$extract_result = pts_merge::merge_test_results($base_select, $compare_select);
pts_client::save_test_result($extract_to . '/composite.xml', $extract_result);
$compare_file = new pts_result_file($extract_to);
$result_file_writer = new pts_result_file_writer('Image Delta');
foreach ($compare_file->get_result_objects() as $result_object) {
if ($result_object->test_profile->get_display_format() != 'IMAGE_COMPARISON') {
continue;
}
$base_result = null;
$compare_result = null;
foreach ($result_object->test_result_buffer->get_buffer_items() as $buffer_item) {
if ($buffer_item->get_result_identifier() == $base_identifier && $base_result == null) {
$base_result = $buffer_item->get_result_value();
} else {
if ($buffer_item->get_result_identifier() == $compare_identifier && $compare_result == null) {
$compare_result = $buffer_item->get_result_value();
}
}
if ($compare_result != null && $base_result != null) {
break;
}
}
if ($compare_result == null || $base_result == null) {
continue;
}
$base_img = imagecreatefromstring(base64_decode($base_result));
$compare_img = imagecreatefromstring(base64_decode($compare_result));
$delta_img = imagecreatefromstring(base64_decode($compare_result));
$img_width = imagesx($base_img);
$img_height = imagesy($base_img);
$img_changed = false;
for ($x = 0; $x < $img_width; $x++) {
for ($y = 0; $y < $img_height; $y++) {
$base_image_color = pts_image::rgb_gd_color_at($base_img, $x, $y);
$compare_image_color = pts_image::rgb_gd_color_at($compare_img, $x, $y);
if ($base_image_color == $compare_image_color || pts_image::rgb_int_diff($base_image_color, $compare_image_color) < 9) {
if ($cords = pts_image::color_pixel_delta($base_img, $compare_img, $x, $y)) {
$pixel_rgb = pts_image::rgb_gd_color_at($delta_img, $cords[0], $cords[1]);
$color_invert = imagecolorresolve($delta_img, 255 - $pixel_rgb[0], 255 - $pixel_rgb[1], 255 - $pixel_rgb[2]);
imagesetpixel($delta_img, $x, $y, $color_invert);
$img_changed = true;
}
}
}
}
if ($img_changed) {
imagepng($delta_img, PTS_SAVE_RESULTS_PATH . $extract_to . '/scratch.png');
$result_value = base64_encode(file_get_contents(PTS_SAVE_RESULTS_PATH . $extract_to . '/scratch.png', FILE_BINARY));
pts_file_io::unlink(PTS_SAVE_RESULTS_PATH . $extract_to . '/scratch.png');
$result_file_writer->add_result_from_result_object_with_value_string($result_object, $result_value);
}
}
pts_client::save_result_file($result_file_writer, $extract_to);
pts_client::display_web_page(PTS_SAVE_RESULTS_PATH . $extract_to . '/composite.xml');
}
