From 0f208c6842ef13d8c68b179eb0ab88a37a0926b0 Mon Sep 17 00:00:00 2001
From: Andrei Karas <akaras@inbox.ru>
Date: Sun, 15 Jun 2014 01:37:01 +0300
Subject: Add OpenGL extension GL_ARB_invalidate_subdata.

And use it for invalidate prepared for deletion images.
---
 src/graphicsmanager.cpp | 10 ++++++++++
 1 file changed, 10 insertions(+)

(limited to 'src/graphicsmanager.cpp')

diff --git a/src/graphicsmanager.cpp b/src/graphicsmanager.cpp
index 938c0ccf1..4661563e2 100644
--- a/src/graphicsmanager.cpp
+++ b/src/graphicsmanager.cpp
@@ -1054,6 +1054,16 @@ void GraphicsManager::initOpenGLFunctions()
         {
             logger->log1("GL_ARB_vertex_attrib_binding not supported");
         }
+        if (checkGLVersion(4, 3)
+            || supportExtension("GL_ARB_invalidate_subdata"))
+        {
+            logger->log1("found GL_ARB_invalidate_subdata");
+            assignFunction(glInvalidateTexImage, "glInvalidateTexImage");
+        }
+        else
+        {
+            logger->log1("GL_ARB_invalidate_subdata not supported");
+        }
         if (checkGLVersion(4, 4) || supportExtension("GL_ARB_multi_bind"))
         {
             logger->log1("found GL_ARB_multi_bind");
-- 
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