From cb44f06359291bd0fd33f1caecaf621f9fc7e23d Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Vladim=C3=ADr=20Vondru=C5=A1?= <mosra@centrum.cz>
Date: Mon, 6 Jul 2015 22:27:42 +0200
Subject: [PATCH] Added NV_shader_noperspective_interpolation ES3 extension.

---
 doc/opengl-support.dox                              | 1 +
 src/Magnum/Context.cpp                              | 3 +++
 src/Magnum/Extensions.h                             | 3 +++
 src/MagnumExternal/OpenGL/GLES3/extensions.txt      | 1 +
 src/MagnumExternal/OpenGL/GLES3/flextGL.h           | 3 +++
 src/MagnumExternal/OpenGL/GLES3/flextGLPlatform.cpp | 2 ++
 6 files changed, 13 insertions(+)

diff --git a/doc/opengl-support.dox b/doc/opengl-support.dox
index ce0d37d0d..b29a8ff8b 100644
--- a/doc/opengl-support.dox
+++ b/doc/opengl-support.dox
@@ -383,6 +383,7 @@ Extension                                   | Status
 @es_extension2{NV,read_stencil,NV_read_depth_stencil} | done
 @es_extension{NV,read_depth_stencil}        | done
 @es_extension{NV,texture_border_clamp}      | done
+@es_extension{NV,shader_noperspective_interpolation} | done (shading language only)
 @es_extension{NV,polygon_mode}              | done
 @es_extension{OES,depth32}                  | done
 @es_extension{OES,mapbuffer}                | done
diff --git a/src/Magnum/Context.cpp b/src/Magnum/Context.cpp
index 623899d91..faf86988f 100644
--- a/src/Magnum/Context.cpp
+++ b/src/Magnum/Context.cpp
@@ -291,6 +291,9 @@ const std::vector<Extension>& Extension::extensions(Version version) {
         _extension(GL,NV,read_stencil),
         _extension(GL,NV,read_depth_stencil),
         _extension(GL,NV,texture_border_clamp),
+        #ifndef MAGNUM_TARGET_GLES2
+        _extension(GL,NV,shader_noperspective_interpolation),
+        #endif
         _extension(GL,NV,polygon_mode),
         _extension(GL,OES,depth32),
         _extension(GL,OES,mapbuffer),
diff --git a/src/Magnum/Extensions.h b/src/Magnum/Extensions.h
index 68e3c66a3..3272c8db7 100644
--- a/src/Magnum/Extensions.h
+++ b/src/Magnum/Extensions.h
@@ -379,6 +379,9 @@ namespace GL {
         _extension(GL,NV,shadow_samplers_cube,      GLES200, GLES300) // #147
         #endif
         _extension(GL,NV,texture_border_clamp,      GLES200,    None) // #149
+        #ifndef MAGNUM_TARGET_GLES2
+        _extension(GL,NV,shader_noperspective_interpolation, GLES300, None) // #201
+        #endif
         _extension(GL,NV,polygon_mode,              GLES200,    None) // #238
     } namespace OES {
         #ifdef MAGNUM_TARGET_GLES2
diff --git a/src/MagnumExternal/OpenGL/GLES3/extensions.txt b/src/MagnumExternal/OpenGL/GLES3/extensions.txt
index df54f0889..ad8213b31 100644
--- a/src/MagnumExternal/OpenGL/GLES3/extensions.txt
+++ b/src/MagnumExternal/OpenGL/GLES3/extensions.txt
@@ -40,6 +40,7 @@ extension NV_read_depth                             optional
 extension NV_read_stencil                           optional
 extension NV_read_depth_stencil                     optional
 extension NV_texture_border_clamp                   optional
+extension NV_shader_noperspective_interpolation     optional
 extension NV_polygon_mode                           optional
 extension OES_depth32                               optional
 extension OES_mapbuffer                             optional
diff --git a/src/MagnumExternal/OpenGL/GLES3/flextGL.h b/src/MagnumExternal/OpenGL/GLES3/flextGL.h
index 60d76a445..156da6524 100644
--- a/src/MagnumExternal/OpenGL/GLES3/flextGL.h
+++ b/src/MagnumExternal/OpenGL/GLES3/flextGL.h
@@ -2144,6 +2144,9 @@ GLAPI FLEXTGL_EXPORT void(APIENTRY *flextglGetnUniformuivKHR)(GLuint, GLint, GLs
 /* GL_NV_texture_border_clamp */
 
 
+/* GL_NV_shader_noperspective_interpolation */
+
+
 /* GL_NV_polygon_mode */
 
 GLAPI FLEXTGL_EXPORT void(APIENTRY *flextglPolygonModeNV)(GLenum, GLenum);
diff --git a/src/MagnumExternal/OpenGL/GLES3/flextGLPlatform.cpp b/src/MagnumExternal/OpenGL/GLES3/flextGLPlatform.cpp
index 5e214aa1f..4b68c03d4 100644
--- a/src/MagnumExternal/OpenGL/GLES3/flextGLPlatform.cpp
+++ b/src/MagnumExternal/OpenGL/GLES3/flextGLPlatform.cpp
@@ -280,6 +280,8 @@ void flextGLInit() {
 
     /* GL_NV_texture_border_clamp */
 
+    /* GL_NV_shader_noperspective_interpolation */
+
     /* GL_NV_polygon_mode */
     flextglPolygonModeNV = reinterpret_cast<void(APIENTRY*)(GLenum, GLenum)>(loader.load("glPolygonModeNV"));