From 150ee87471486436e3bd954ecf58f8fbc8e5ecf8 Mon Sep 17 00:00:00 2001
From: Vincent Lejeune <vljn@ovi.com>
Date: Sat, 5 Apr 2014 20:53:38 +0200
Subject: [PATCH] Use glFrameBufferTexture on shadows buffer

We're sure there is at least gl 3.2 support.
---
 src/graphics/glwrap.cpp | 2 ++
 src/graphics/glwrap.hpp | 1 +
 src/graphics/rtts.cpp   | 4 ++--
 3 files changed, 5 insertions(+), 2 deletions(-)

diff --git a/src/graphics/glwrap.cpp b/src/graphics/glwrap.cpp
index 80e45bb2d..51581bed8 100644
--- a/src/graphics/glwrap.cpp
+++ b/src/graphics/glwrap.cpp
@@ -58,6 +58,7 @@ PFNGLDEBUGMESSAGECALLBACKARBPROC glDebugMessageCallbackARB;
 PFNGLGENFRAMEBUFFERSPROC glGenFramebuffers;
 PFNGLBINDFRAMEBUFFERPROC glBindFramebuffer;
 PFNGLFRAMEBUFFERTEXTURE2DPROC glFramebufferTexture2D;
+PFNGLFRAMEBUFFERTEXTUREPROC glFramebufferTexture;
 PFNGLTEXIMAGE3DPROC glTexImage3D;
 PFNGLGENERATEMIPMAPPROC glGenerateMipmap;
 PFNGLCHECKFRAMEBUFFERSTATUSPROC glCheckFramebufferStatus;
@@ -200,6 +201,7 @@ void initGL()
     glGenFramebuffers = (PFNGLGENFRAMEBUFFERSPROC)IRR_OGL_LOAD_EXTENSION("glGenFramebuffers");
     glBindFramebuffer = (PFNGLBINDFRAMEBUFFERPROC)IRR_OGL_LOAD_EXTENSION("glBindFramebuffer");
     glFramebufferTexture2D = (PFNGLFRAMEBUFFERTEXTURE2DPROC)IRR_OGL_LOAD_EXTENSION("glFramebufferTexture2D");
+    glFramebufferTexture = (PFNGLFRAMEBUFFERTEXTUREPROC)IRR_OGL_LOAD_EXTENSION("glFramebufferTexture");
     glTexImage3D = (PFNGLTEXIMAGE3DPROC)IRR_OGL_LOAD_EXTENSION("glTexImage3D");
     glGenerateMipmap = (PFNGLGENERATEMIPMAPPROC)IRR_OGL_LOAD_EXTENSION("glGenerateMipmap");
     glCheckFramebufferStatus = (PFNGLCHECKFRAMEBUFFERSTATUSPROC)IRR_OGL_LOAD_EXTENSION("glCheckFramebufferStatus");
diff --git a/src/graphics/glwrap.hpp b/src/graphics/glwrap.hpp
index a7ecbc57d..da1552b04 100644
--- a/src/graphics/glwrap.hpp
+++ b/src/graphics/glwrap.hpp
@@ -75,6 +75,7 @@ extern PFNGLVERTEXATTRIBIPOINTERPROC glVertexAttribIPointer;
 extern PFNGLGENFRAMEBUFFERSPROC glGenFramebuffers;
 extern PFNGLBINDFRAMEBUFFERPROC glBindFramebuffer;
 extern PFNGLFRAMEBUFFERTEXTURE2DPROC glFramebufferTexture2D;
+extern PFNGLFRAMEBUFFERTEXTUREPROC glFramebufferTexture;
 extern PFNGLTEXIMAGE3DPROC glTexImage3D;
 extern PFNGLGENERATEMIPMAPPROC glGenerateMipmap;
 extern PFNGLCHECKFRAMEBUFFERSTATUSPROC glCheckFramebufferStatus;
diff --git a/src/graphics/rtts.cpp b/src/graphics/rtts.cpp
index 74e191182..033631b58 100644
--- a/src/graphics/rtts.cpp
+++ b/src/graphics/rtts.cpp
@@ -128,8 +128,8 @@ RTT::RTT()
         glGenTextures(1, &shadowDepthTex);
         glBindTexture(GL_TEXTURE_2D_ARRAY, shadowDepthTex);
         glTexImage3D(GL_TEXTURE_2D_ARRAY, 0, GL_DEPTH_COMPONENT24, 1024, 1024, 4, 0, GL_DEPTH_COMPONENT, GL_FLOAT, 0);
-        glFramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_2D_ARRAY, shadowColorTex, 0);
-        glFramebufferTexture2D(GL_FRAMEBUFFER, GL_DEPTH_ATTACHMENT, GL_TEXTURE_2D_ARRAY, shadowDepthTex, 0);
+        glFramebufferTexture(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, shadowColorTex, 0);
+        glFramebufferTexture(GL_FRAMEBUFFER, GL_DEPTH_ATTACHMENT, shadowDepthTex, 0);
         GLenum result = glCheckFramebufferStatus(GL_FRAMEBUFFER);
         assert(result == GL_FRAMEBUFFER_COMPLETE_EXT);
     }