From ce90a27a48c2fe20c59505f288a38ad4b0ae3b10 Mon Sep 17 00:00:00 2001
From: Pierre Joye <pajoye@php.net>
Date: Fri, 9 Dec 2005 18:07:57 +0000
Subject: [PATCH] - MFH, PNG compression support exposed

---
 NEWS                      |  1 +
 ext/gd/gd.c               |  2 +-
 ext/gd/gd_ctx.c           |  1 +
 ext/gd/tests/pngcomp.phpt | 37 +++++++++++++++++++++++++++++++++++++
 4 files changed, 40 insertions(+), 1 deletion(-)
 create mode 100644 ext/gd/tests/pngcomp.phpt

diff --git a/NEWS b/NEWS
index b19d7784da..bca89ff4bb 100644
--- a/NEWS
+++ b/NEWS
@@ -1,6 +1,7 @@
 PHP                                                                        NEWS
 |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
 ?? ??? 200?, PHP 5.1.2
+- Addes PNG compression support (Pierre)
 - Added new extensions: (Ilia, Wez)
   . XMLWriter
   . Hash
diff --git a/ext/gd/gd.c b/ext/gd/gd.c
index cbd5fd5aad..30acee57e6 100644
--- a/ext/gd/gd.c
+++ b/ext/gd/gd.c
@@ -1871,7 +1871,7 @@ PHP_FUNCTION(imagegif)
 PHP_FUNCTION(imagepng)
 {
 #ifdef USE_GD_IOCTX
-	_php_image_output_ctx(INTERNAL_FUNCTION_PARAM_PASSTHRU, PHP_GDIMG_TYPE_PNG, "PNG", gdImagePngCtx);
+	_php_image_output_ctx(INTERNAL_FUNCTION_PARAM_PASSTHRU, PHP_GDIMG_TYPE_PNG, "PNG", gdImagePngCtxEx);
 #else
 	_php_image_output(INTERNAL_FUNCTION_PARAM_PASSTHRU, PHP_GDIMG_TYPE_PNG, "PNG", gdImagePng);
 #endif
diff --git a/ext/gd/gd_ctx.c b/ext/gd/gd_ctx.c
index dfc5237e6c..36a41050f5 100644
--- a/ext/gd/gd_ctx.c
+++ b/ext/gd/gd_ctx.c
@@ -115,6 +115,7 @@ static void _php_image_output_ctx(INTERNAL_FUNCTION_PARAMETERS, int image_type,
 				php_error_docref(NULL TSRMLS_CC, E_WARNING, "Invalid threshold value '%d'. It must be between 0 and 255", q);
 			}
 		case PHP_GDIMG_TYPE_JPG:
+		case PHP_GDIMG_TYPE_PNG:
 			(*func_p)(im, ctx, q);
 			break;
 		case PHP_GDIMG_TYPE_XBM:
diff --git a/ext/gd/tests/pngcomp.phpt b/ext/gd/tests/pngcomp.phpt
new file mode 100644
index 0000000000..6a4dbbb6c0
--- /dev/null
+++ b/ext/gd/tests/pngcomp.phpt
@@ -0,0 +1,37 @@
+--TEST--
+png compression test
+--SKIPIF--
+<?php 
+	if (!extension_loaded('gd')) {
+		die("skip gd extension not available.");
+	}
+	if (!GD_BUNDLED) {
+		die("skip external GD libraries always fail");
+	}	
+	if (!function_exists("imagecreatefrompng") || !function_exists("imagepng")) {
+		die("skip png support unavailable");
+	}
+	if (!function_exists("imagecreatefromjpeg") || !function_exists("imagejpeg")) {
+		die("skip jpeg support unavailable");
+	}
+?>
+--FILE--
+<?php
+	$cwd = dirname(__FILE__);
+
+	echo "PNG compression test: ";
+
+        $im = imagecreatetruecolor(20,20);
+        imagefilledrectangle($im, 5,5, 10,10, 0xffffff);
+        imagepng($im, $cwd . '/test_pngcomp.png', 9);
+
+        $im2 = imagecreatefrompng($cwd . '/test_pngcomp.png');
+        $col = imagecolorat($im2, 8,8);
+        if ($col == 0xffffff) {
+                echo "ok\n";
+        }
+	
+	@unlink($cwd . "/test_pngcomp.png");
+?>
+--EXPECT--
+PNG compression test: ok
-- 
2.50.1