From d3d1450a3bf6767b3e5388610f340b9dee16866e Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Viktor=20Szak=C3=A1ts?= <vszakats@users.noreply.github.com>
Date: Sat, 5 Oct 2013 00:51:03 +0200
Subject: [PATCH] fixed potentially uninitialized ptr error

also deleted two line ending spaces
---
 src/hpdf_image_png.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/src/hpdf_image_png.c b/src/hpdf_image_png.c
index 3a35f5c..3f20a77 100644
--- a/src/hpdf_image_png.c
+++ b/src/hpdf_image_png.c
@@ -280,8 +280,8 @@ ReadTransparentPngData  (HPDF_Dict    image,
 		case PNG_COLOR_TYPE_RGB_ALPHA:
 			row_len = 3 * width * sizeof(png_byte);
 			for (j = 0; j < height; j++) {
+				row = row_ptr[j];
 				for (i = 0; i < width; i++) {
-					row = row_ptr[j];
 					memmove(row + (3 * i), row + (4*i), 3);
 					smask_data[width * j + i] = row[4 * i + 3];
 				}
@@ -295,8 +295,8 @@ ReadTransparentPngData  (HPDF_Dict    image,
 		case PNG_COLOR_TYPE_GRAY_ALPHA:
 			row_len = width * sizeof(png_byte);
 			for (j = 0; j < height; j++) {
+				row = row_ptr[j];
 				for (i = 0; i < width; i++) {
-					row = row_ptr[j];
 					row[i] = row[2 * i];
 					smask_data[width * j + i] = row[2 * i + 1];
 				}
@@ -474,7 +474,7 @@ LoadPngData  (HPDF_Dict     image,
 		HPDF_Dict smask;
 		png_bytep smask_data;
 
-		if (!png_get_valid(png_ptr, info_ptr, PNG_INFO_tRNS) || 
+		if (!png_get_valid(png_ptr, info_ptr, PNG_INFO_tRNS) ||
 			!png_get_tRNS(png_ptr, info_ptr, &trans, &num_trans, NULL)) {
 			goto no_transparent_color_in_palette;
 		}
@@ -534,7 +534,7 @@ LoadPngData  (HPDF_Dict     image,
 
 no_transparent_color_in_palette:
 
-	/* read images with alpha channel right away 
+	/* read images with alpha channel right away
 	   we have to do this because image transparent mask must be added to the Xref */
 	if (xref && PNG_COLOR_MASK_ALPHA & color_type) {
 		HPDF_Dict smask;
-- 
2.21.1 (Apple Git-122.3)