From a3960cb70b81f8d62ab9310bacaed6d652f83d66 Mon Sep 17 00:00:00 2001
From: flowtron <flowtron@users.sourceforge.net>
Date: Mon, 17 Jan 2011 18:44:30 +0000
Subject: [PATCH] anisotropy support (for high-end machines) provided by RPG

git-svn-id: svn://svn.code.sf.net/p/actiongame/code/trunk/ac@6014 e016b1c5-ed68-44aa-a2f7-31cac88cffde
---
 source/src/texture.cpp | 17 +++++++++++++++++
 1 file changed, 17 insertions(+)

diff --git a/source/src/texture.cpp b/source/src/texture.cpp
index 39fc5706..93c9d5b7 100644
--- a/source/src/texture.cpp
+++ b/source/src/texture.cpp
@@ -139,13 +139,30 @@ void uploadtexture(GLenum target, GLenum internal, int tw, int th, GLenum format
     }
     if(buf) delete[] buf;
 }
+void check_anisotropy()
+{
+    float largest_supported_anisotropy;
+    glGetFloatv(GL_MAX_TEXTURE_MAX_ANISOTROPY_EXT, &largest_supported_anisotropy);
+    conoutf("your card reports: %3.1f as max ansiotropy value", largest_supported_anisotropy);
+}
+COMMAND(check_anisotropy, ARG_NONE);
 
+VARP(anisotropy, 0, 0, 16);
 void createtexture(int tnum, int w, int h, void *pixels, int clamp, bool mipmap, bool canreduce, GLenum format)
 {
     glBindTexture(GL_TEXTURE_2D, tnum);
     glPixelStorei(GL_UNPACK_ALIGNMENT, 1);
     glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, clamp&1 ? GL_CLAMP_TO_EDGE : GL_REPEAT);
     glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, clamp&2 ? GL_CLAMP_TO_EDGE : GL_REPEAT);
+    switch(anisotropy)
+    {
+        case 1:
+        case 2:
+        case 4:
+        case 8:
+        case 16: glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAX_ANISOTROPY_EXT, aniso); break;
+        default: break;
+    }
     glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, bilinear ? GL_LINEAR : GL_NEAREST);
     glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER,
         mipmap ?