From 96437d95fa62e0694e1c8bf4e289df0d0f320523 Mon Sep 17 00:00:00 2001
From: Christoph Oelckers <coelckers@zdoom.fake>
Date: Thu, 20 Oct 2016 10:36:23 +0200
Subject: [PATCH] - use the new ZDoom code for retrieving a sky's cap color to
 avoid redundancies.

---
 src/gl/textures/gl_texture.cpp | 37 +---------------------------------
 src/gl/textures/gl_texture.h   |  1 -
 src/textures/textures.h        |  4 ----
 3 files changed, 1 insertion(+), 41 deletions(-)

diff --git a/src/gl/textures/gl_texture.cpp b/src/gl/textures/gl_texture.cpp
index ce6ff398c..8aaa98ae6 100644
--- a/src/gl/textures/gl_texture.cpp
+++ b/src/gl/textures/gl_texture.cpp
@@ -167,7 +167,7 @@ void gl_GenerateGlobalBrightmapFromColormap()
 //	component becomes one.
 //
 //===========================================================================
-PalEntry averageColor(const DWORD *data, int size, int maxout)
+static PalEntry averageColor(const DWORD *data, int size, int maxout)
 {
 	int				i;
 	unsigned int	r, g, b;
@@ -216,10 +216,7 @@ FTexture::MiscGLInfo::MiscGLInfo() throw()
 	GlowColor = 0;
 	GlowHeight = 128;
 	bSkybox = false;
-	FloorSkyColor = 0;
-	CeilingSkyColor = 0;
 	bFullbright = false;
-	bSkyColorDone = false;
 	bBrightmapChecked = false;
 	bDisableFullbright = false;
 	bNoFilter = false;
@@ -326,38 +323,6 @@ void FTexture::GetGlowColor(float *data)
 	data[2]=gl_info.GlowColor.b/255.0f;
 }
 
-//===========================================================================
-// 
-//	Gets the average color of a texture for use as a sky cap color
-//
-//===========================================================================
-
-PalEntry FTexture::GetSkyCapColor(bool bottom)
-{
-	PalEntry col;
-	int w;
-	int h;
-
-	if (!gl_info.bSkyColorDone)
-	{
-		gl_info.bSkyColorDone = true;
-
-		unsigned char *buffer = GLRenderer->GetTextureBuffer(this, w, h);
-
-		if (buffer)
-		{
-			gl_info.CeilingSkyColor = averageColor((DWORD *) buffer, w * MIN(30, h), 0);
-			if (h>30)
-			{
-				gl_info.FloorSkyColor = averageColor(((DWORD *) buffer)+(h-30)*w, w * 30, 0);
-			}
-			else gl_info.FloorSkyColor = gl_info.CeilingSkyColor;
-			delete[] buffer;
-		}
-	}
-	return bottom? gl_info.FloorSkyColor : gl_info.CeilingSkyColor;
-}
-
 //===========================================================================
 // 
 //	Finds gaps in the texture which can be skipped by the renderer
diff --git a/src/gl/textures/gl_texture.h b/src/gl/textures/gl_texture.h
index 9ee9b27f9..455678f85 100644
--- a/src/gl/textures/gl_texture.h
+++ b/src/gl/textures/gl_texture.h
@@ -24,7 +24,6 @@ protected:
 
 
 void gl_GenerateGlobalBrightmapFromColormap();
-PalEntry averageColor(const DWORD *data, int size, int maxout);
 
 
 
diff --git a/src/textures/textures.h b/src/textures/textures.h
index 518787dc0..cc5bba389 100644
--- a/src/textures/textures.h
+++ b/src/textures/textures.h
@@ -307,8 +307,6 @@ public:
 		FGLTexture *SystemTexture[2];
 		FTexture *Brightmap;
 		PalEntry GlowColor;
-		PalEntry FloorSkyColor;
-		PalEntry CeilingSkyColor;
 		int GlowHeight;
 		FloatRect *areas;
 		int areacount;
@@ -318,7 +316,6 @@ public:
 		bool bGlowing:1;						// Texture glows
 		bool bFullbright:1;						// always draw fullbright
 		bool bSkybox:1;							// This is a skybox
-		bool bSkyColorDone:1;					// Fill color for sky
 		char bBrightmapChecked:1;				// Set to 1 if brightmap has been checked
 		bool bDisableFullbright:1;				// This texture will not be displayed as fullbright sprite
 		bool bNoFilter:1;
@@ -331,7 +328,6 @@ public:
 	MiscGLInfo gl_info;
 
 	void GetGlowColor(float *data);
-	PalEntry GetSkyCapColor(bool bottom);
 	bool isGlowing() { return gl_info.bGlowing; }
 	bool isFullbright() { return gl_info.bFullbright; }
 	void CreateDefaultBrightmap();