From d9dff2c04687644ac91ba133a8a46f82be73bc9b Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Vladim=C3=ADr=20Vondru=C5=A1?= <mosra@centrum.cz>
Date: Mon, 13 Aug 2012 14:31:41 +0200
Subject: [PATCH] Clarified required version and extension for R/RG textures.

---
 src/AbstractTexture.h | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/src/AbstractTexture.h b/src/AbstractTexture.h
index cae04f499..680fc144c 100644
--- a/src/AbstractTexture.h
+++ b/src/AbstractTexture.h
@@ -122,12 +122,14 @@ class MAGNUM_EXPORT AbstractTexture {
             /**
              * Red component only. Green and blue are set to `0`, alpha is set
              * to `1`.
+             * @requires_gl30 Extension @extension{ARB,texture_rg}
              */
             Red,
 
             /**
              * Red and green component. Blue is set to `0`, alpha is set to
              * `1`.
+             * @requires_gl30 Extension @extension{ARB,texture_rg}
              */
             RedGreen,
 
@@ -241,7 +243,7 @@ class MAGNUM_EXPORT AbstractTexture {
              * One-component (red channel), unsigned normalized, probably
              * 8bit.
              * @requires_gl
-             * @requires_gl30 (no extension providing this functionality)
+             * @requires_gl30 Extension @extension{ARB,texture_rg}
              */
             Red = GL_RED,
 
@@ -249,7 +251,7 @@ class MAGNUM_EXPORT AbstractTexture {
              * Two-component (red and green channel), unsigned normalized,
              * each component probably 8bit, 16bit total.
              * @requires_gl
-             * @requires_gl30 (no extension providing this functionality)
+             * @requires_gl30 Extension @extension{ARB,texture_rg}
              */
             RedGreen = GL_RG,
             #endif
@@ -365,12 +367,14 @@ class MAGNUM_EXPORT AbstractTexture {
             /**
              * Compressed red channel, unsigned normalized.
              * @requires_gl
+             * @requires_gl30 Extension @extension{ARB,texture_rg}
              */
             CompressedRed = GL_COMPRESSED_RED,
 
             /**
              * Compressed red and green channel, unsigned normalized.
              * @requires_gl
+             * @requires_gl30 Extension @extension{ARB,texture_rg}
              */
             CompressedRedGreen = GL_COMPRESSED_RG,