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Annotation of embedaddon/php/ext/gd/tests/imagecopyresampled_basic.phpt, revision 1.1.1.2

1.1       misho       1: --TEST--
                      2: imagecopyresampled()
                      3: --SKIPIF--
                      4: <?php 
                      5:        if (!function_exists('imagecopyresampled')) die('skip imagecopyresampled() not available'); 
                      6:        if (!(imagetype() & IMG_PNG)) die('skip PNG Support is not enabled');
                      7: ?>
                      8: --FILE--
                      9: <?php
                     10: 
                     11: /* Prototype  : bool imagecopyresampled  ( resource $dst_image  , resource $src_image  , int $dst_x  , int $dst_y  , int $src_x  , int $src_y  , int $dst_w  , int $dst_h  , int $src_w  , int $src_h  )
                     12:  * Description: Copy and resize part of an image with resampling.
                     13:  * Source code: ext/standard/image.c
                     14:  * Alias to functions: 
                     15:  */
                     16: 
                     17: echo "Simple test of imagecopyresampled() function\n";
                     18: 
                     19: $dest_lge = dirname(realpath(__FILE__)) . '/imagelarge.png';
                     20: $dest_sml = dirname(realpath(__FILE__)) . '/imagesmall.png';
                     21: 
                     22: // create a blank image
                     23: $image_lge = imagecreatetruecolor(400, 300);
                     24: 
                     25: // set the background color to black 
                     26: $bg = imagecolorallocate($image_lge, 0, 0, 0);
                     27: 
                     28: // fill polygon with blue
                     29: $col_ellipse = imagecolorallocate($image_lge, 0, 255, 0);
                     30: 
                     31: // draw the eclipse
                     32: imagefilledellipse($image_lge, 200, 150, 300, 200, $col_ellipse);
                     33: 
                     34: // output the picture to a file
                     35: imagepng($image_lge, $dest_lge);
                     36: 
                     37: // Get new dimensions
1.1.1.2 ! misho      38: $percent = 0.5; // new image 50% of original
1.1       misho      39: list($width, $height) = getimagesize($dest_lge);
1.1.1.2 ! misho      40: echo "Size of original: width=". $width . " height=" . $height . "\n";
1.1       misho      41: 
                     42: $new_width = $width * $percent;
                     43: $new_height = $height * $percent;
                     44: 
                     45: // Resample
                     46: $image_sml = imagecreatetruecolor($new_width, $new_height);
                     47: imagecopyresampled($image_sml, $image_lge, 0, 0, 0, 0, $new_width, $new_height, $width, $height);
                     48: 
                     49: imagepng($image_sml, $dest_sml);
                     50: 
                     51: list($width, $height) = getimagesize($dest_sml);
                     52: echo "Size of copy: width=". $width . " height=" . $height . "\n";
                     53: 
                     54: imagedestroy($image_lge); 
                     55: imagedestroy($image_sml);
                     56:  
                     57: 
                     58: echo "Done\n"; 
                     59: ?>
                     60: --CLEAN--
                     61: <?php 
                     62:        $dest_lge = dirname(realpath(__FILE__)) . '/imagelarge.png';
                     63:        $dest_sml = dirname(realpath(__FILE__)) . '/imagesmall.png';
                     64:        @unlink($dest_lge);
                     65:        @unlink($dest_sml);
                     66: ?>
                     67: --EXPECT--
                     68: Simple test of imagecopyresampled() function
1.1.1.2 ! misho      69: Size of original: width=400 height=300
1.1       misho      70: Size of copy: width=200 height=150
                     71: Done