<?
ini_set("memory_limit","20M");

// RoundedImageCorners(dirname(__FILE__)."/imagine.extensie", CALE_DESTINATIE."/imagine-rezultat.extensie", razaX, razaY);

function RoundedImageCorners($rawimg, $imagine_micsorata, $radius_x, $radius_y, $new_w=0, $new_h=0)
{
	list($w, $h, $tip, $atr)=getimagesize($rawimg);
	if ($tip=="2")
		$gdimg=imagecreatefromjpeg($rawimg);
	elseif ($tip=="1")
		$gdimg=imagecreatefromgif($rawimg);
	elseif ($tip=="3")
		$gdimg=imagecreatefrompng($rawimg);
	
	/* daca se specifica si noile marimi, atunci fac mai intai redimensionarea (cu cropImg) si apoi aplic colturile */
	if($new_w!=0 && $new_h!=0)
	{
		if($new_w<=$w && $new_h<=$h)
		{
			$factor_resize=min($w/$new_w, $h/$new_h);
			$imagine_micsorata_latime=round($w/$factor_resize);
			$imagine_micsorata_inaltime=round($h/$factor_resize);
			
			$imagine_destinatie=imagecreatetruecolor($new_w, $new_h);
			$new_x=round(($new_w-$imagine_micsorata_latime)/2);
			$new_y=round(($new_h-$imagine_micsorata_inaltime)/2);
	
			imagecopyresampled($imagine_destinatie, $gdimg, $new_x, $new_y, 0, 0, $imagine_micsorata_latime, $imagine_micsorata_inaltime, $w, $h);
			imagedestroy($gdimg);
			$gdimg=imagecreatetruecolor($new_w, $new_h);
			imagecopy($gdimg, $imagine_destinatie, 0, 0, 0, 0, $new_w, $new_h);
			imagedestroy($imagine_destinatie);
		}
	}
	
	if ($gdimg_cornermask_triple = imagecreatetruecolor($radius_x * 6, $radius_y * 6))
	{
		if ($gdimg_cornermask = imagecreatetruecolor(imagesx($gdimg), imagesy($gdimg)))
		{
			$color_transparent = imagecolorallocate($gdimg_cornermask_triple, 255, 255, 255);
			imagefilledellipse($gdimg_cornermask_triple, $radius_x * 3, $radius_y * 3, $radius_x * 4, $radius_y * 4, $color_transparent);
			imagefilledrectangle($gdimg_cornermask, 0, 0, imagesx($gdimg), imagesy($gdimg), $color_transparent);
			imagecopyresampled($gdimg_cornermask, $gdimg_cornermask_triple,                           0,                           0,     $radius_x,     $radius_y, $radius_x, $radius_y, $radius_x * 2, $radius_y * 2);
			imagecopyresampled($gdimg_cornermask, $gdimg_cornermask_triple,                           0, imagesy($gdimg) - $radius_y,     $radius_x, $radius_y * 3, $radius_x, $radius_y, $radius_x * 2, $radius_y * 2);
			imagecopyresampled($gdimg_cornermask, $gdimg_cornermask_triple, imagesx($gdimg) - $radius_x, imagesy($gdimg) - $radius_y, $radius_x * 3, $radius_y * 3, $radius_x, $radius_y, $radius_x * 2, $radius_y * 2);
			imagecopyresampled($gdimg_cornermask, $gdimg_cornermask_triple, imagesx($gdimg) - $radius_x,                           0, $radius_x * 3,     $radius_y, $radius_x, $radius_y, $radius_x * 2, $radius_y * 2);
			ApplyMask($gdimg_cornermask, $gdimg, $imagine_micsorata);
			imagedestroy($gdimg_cornermask);
		}
		imagedestroy($gdimg_cornermask_triple);
	}
	return false;
}

function ApplyMask(&$gdimg_mask, &$gdimg_image, $imagine_micsorata)
{
	if ($gdimg_mask_resized = imagecreatetruecolor(imagesx($gdimg_image), imagesy($gdimg_image)))
	{
		imagecopyresampled($gdimg_mask_resized, $gdimg_mask, 0, 0, 0, 0, imagesx($gdimg_image), imagesy($gdimg_image), imagesx($gdimg_mask), imagesy($gdimg_mask));
		if ($gdimg_mask_blendtemp = imagecreatetruecolor(imagesx($gdimg_image), imagesy($gdimg_image)))
		{
			$color_background = imagecolorallocate($gdimg_mask_blendtemp, 0, 0, 0);
			imagefilledrectangle($gdimg_mask_blendtemp, 0, 0, imagesx($gdimg_mask_blendtemp), imagesy($gdimg_mask_blendtemp), $color_background);
			imagealphablending($gdimg_mask_blendtemp, false);
			imagesavealpha($gdimg_mask_blendtemp, true);
			for ($x = 0; $x < imagesx($gdimg_image); $x++)
			{
				for ($y = 0; $y < imagesx($gdimg_image); $y++)
				{
					//$RealPixel = phpthumb_functions::GetPixelColor($gdimg_mask_blendtemp, $x, $y);
					$RealPixel = GetPixelColor($gdimg_image, $x, $y);
					$MaskPixel = GrayscalePixel(GetPixelColor($gdimg_mask_resized, $x, $y));
					$MaskAlpha = 127 - (floor($MaskPixel['red'] / 2) * (1 - ($RealPixel['alpha'] / 127)));
					$newcolor = ImageColorAllocateAlphaSafe($gdimg_mask_blendtemp, $RealPixel['red'], $RealPixel['green'], $RealPixel['blue'], $MaskAlpha);
					imagesetpixel($gdimg_mask_blendtemp, $x, $y, $newcolor);
				}
			}
			imagealphablending($gdimg_image, false);
			imagesavealpha($gdimg_image, true);
			imagecopy($gdimg_image, $gdimg_mask_blendtemp, 0, 0, 0, 0, imagesx($gdimg_mask_blendtemp), imagesy($gdimg_mask_blendtemp));
			imagepng($gdimg_image, $imagine_micsorata);
			imagedestroy($gdimg_mask_blendtemp);
		}
		imagedestroy($gdimg_mask_resized);
	}
	return true;
}

function ImageColorAllocateAlphaSafe(&$gdimg_hexcolorallocate, $R, $G, $B, $alpha=false)
{
	return imagecolorallocatealpha($gdimg_hexcolorallocate, $R, $G, $B, intval($alpha));
}

function GetPixelColor(&$img, $x, $y)
{
	if (!is_resource($img)) {
		return false;
	}
	return @imagecolorsforindex($img, @imagecolorat($img, $x, $y));
}

function GrayscalePixel($OriginalPixel)
{
	$gray = GrayscaleValue($OriginalPixel['red'], $OriginalPixel['green'], $OriginalPixel['blue']);
	return array('red'=>$gray, 'green'=>$gray, 'blue'=>$gray);
}

function GrayscaleValue($r, $g, $b)
{
	return round(($r * 0.30) + ($g * 0.59) + ($b * 0.11));
}
?>