From ea1947ffcc606d757357398b24e74a3f4ecefa07 Mon Sep 17 00:00:00 2001
From: neonloop
Date: Wed, 20 Oct 2021 14:54:27 +0000
Subject: Initial commit from steward-fu release

---
 modules/librender/scaler_normal.c | 61 +++++++++++++++++++++++++++++++++++++++
 1 file changed, 61 insertions(+)
 create mode 100644 modules/librender/scaler_normal.c

(limited to 'modules/librender/scaler_normal.c')

diff --git a/modules/librender/scaler_normal.c b/modules/librender/scaler_normal.c
new file mode 100644
index 0000000..e6734ed
--- /dev/null
+++ b/modules/librender/scaler_normal.c
@@ -0,0 +1,61 @@
+/*
+ *  Copyright � 2006-2016 SplinterGU (Fenix/Bennugd)
+ *  Copyright � 2002-2006 Fenix Team (Fenix)
+ *  Copyright � 1999-2002 Jos� Luis Cebri�n Pag�e (Fenix)
+ *
+ *  This file is part of Bennu - Game Development
+ *
+ *  This software is provided 'as-is', without any express or implied
+ *  warranty. In no event will the authors be held liable for any damages
+ *  arising from the use of this software.
+ *
+ *  Permission is granted to anyone to use this software for any purpose,
+ *  including commercial applications, and to alter it and redistribute it
+ *  freely, subject to the following restrictions:
+ *
+ *     1. The origin of this software must not be misrepresented; you must not
+ *     claim that you wrote the original software. If you use this software
+ *     in a product, an acknowledgment in the product documentation would be
+ *     appreciated but is not required.
+ *
+ *     2. Altered source versions must be plainly marked as such, and must not be
+ *     misrepresented as being the original software.
+ *
+ *     3. This notice may not be removed or altered from any source
+ *     distribution.
+ *
+ */
+
+/* By Splinter 2007 */
+
+/* --------------------------------------------------------------------------- */
+
+#include "librender.h"
+
+/* --------------------------------------------------------------------------- */
+
+void scale_normal2x( uint8_t *srcPtr, uint32_t srcPitch, uint8_t *dstPtr, uint32_t dstPitch, int width, int height )
+{
+    const uint32_t nextlineSrc = srcPitch / sizeof( uint16_t );
+    const uint16_t *p = ( const uint16_t * )srcPtr;
+
+    const uint32_t nextlineDst = dstPitch / sizeof( uint16_t );
+    uint16_t *q = ( uint16_t * )dstPtr;
+
+    while ( height-- )
+    {
+        int tmpWidth = width;
+        while ( tmpWidth-- )
+        {
+            *( q + nextlineDst ) = *q = *p;
+            q++;
+            *( q + nextlineDst ) = *q = *p;
+            q++;
+            p++;
+        }
+        p += nextlineSrc - width;
+        q += ( nextlineDst - width ) * 2;
+    }
+}
+
+/* --------------------------------------------------------------------------- */
-- 
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