From 1d59a53cd4af1b72b418b921cae0714264f5323b Mon Sep 17 00:00:00 2001
From: Christoph Oelckers <coelckers@users.noreply.github.com>
Date: Sun, 18 Mar 2018 12:54:14 +0100
Subject: [PATCH] - added worldtexture.cpp
---
src/textures/worldtexture.cpp | 133 ++++++++++++++++++++++++++++++++++
1 file changed, 133 insertions(+)
create mode 100644 src/textures/worldtexture.cpp
diff --git a/src/textures/worldtexture.cpp b/src/textures/worldtexture.cpp
new file mode 100644
index 000000000..0370bf3e8
--- /dev/null
+++ b/src/textures/worldtexture.cpp
@@ -0,0 +1,133 @@
+/*
+** worldtexture.cpp
+** Intermediate class for some common code for several classes
+**
+**---------------------------------------------------------------------------
+** Copyright 2018 Christoph Oelckers
+** All rights reserved.
+**
+** Redistribution and use in source and binary forms, with or without
+** modification, are permitted provided that the following conditions
+** are met:
+**
+** 1. Redistributions of source code must retain the above copyright
+** notice, this list of conditions and the following disclaimer.
+** 2. Redistributions in binary form must reproduce the above copyright
+** notice, this list of conditions and the following disclaimer in the
+** documentation and/or other materials provided with the distribution.
+** 3. The name of the author may not be used to endorse or promote products
+** derived from this software without specific prior written permission.
+**
+** THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
+** IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+** OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+** IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
+** INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+** NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+** THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+**---------------------------------------------------------------------------
+**
+**
+*/
+
+#include "textures.h"
+
+
+//==========================================================================
+//
+//
+//
+//==========================================================================
+
+FWorldTexture::FWorldTexture(const char *name, int lumpnum)
+ : FTexture(name, lumpnum)
+{
+}
+
+//==========================================================================
+//
+//
+//
+//==========================================================================
+
+FWorldTexture::~FWorldTexture()
+{
+ Unload();
+ for(int i = 0; i < 2; i++)
+ {
+ if (Spandata[i] != nullptr)
+ {
+ FreeSpans (Spandata[i]);
+ Spandata[i] = nullptr;
+ }
+ }
+}
+
+//==========================================================================
+//
+//
+//
+//==========================================================================
+
+void FWorldTexture::Unload ()
+{
+ for(int i = 0; i < 2; i++)
+ {
+ if (!(PixelsAreStatic & (1 << i)))
+ {
+ delete[] Pixeldata[i];
+ }
+ Pixeldata[i] = nullptr;
+ }
+ FTexture::Unload();
+}
+
+//==========================================================================
+//
+//
+//
+//==========================================================================
+
+const uint8_t *FWorldTexture::GetColumn (unsigned int column, const Span **spans_out)
+{
+ GetPixels();
+ if ((unsigned)column >= (unsigned)Width)
+ {
+ if (WidthMask + 1 == Width)
+ {
+ column &= WidthMask;
+ }
+ else
+ {
+ column %= Width;
+ }
+ }
+ if (spans_out != nullptr)
+ {
+ if (Spandata[0] == nullptr)
+ {
+ Spandata[0] = CreateSpans (Pixeldata[0]);
+ }
+ *spans_out = Spandata[0][column];
+ }
+ return Pixeldata[0] + column*Height;
+}
+
+//==========================================================================
+//
+//
+//
+//==========================================================================
+
+const uint8_t *FWorldTexture::GetPixels ()
+{
+ if (Pixeldata[0] == nullptr)
+ {
+ Pixeldata[0] = MakeTexture (LegacyRenderStyles[STYLE_Normal]);
+ }
+ return Pixeldata[0];
+}
+