From c17486857fd9f0ea3e5daa3887c19e47be94501f Mon Sep 17 00:00:00 2001
From: binary1248 <binary1248@hotmail.com>
Date: Fri, 15 Aug 2014 07:13:32 +0200
Subject: [PATCH] Implemented methods to retrieve the OpenGL handles from
 sf::Texture and sf::Shader.

---
 include/SFML/Graphics/Shader.hpp  | 12 ++++++++++++
 include/SFML/Graphics/Texture.hpp | 12 ++++++++++++
 src/SFML/Graphics/Shader.cpp      | 14 ++++++++++++++
 src/SFML/Graphics/Texture.cpp     |  7 +++++++
 4 files changed, 45 insertions(+)

diff --git a/include/SFML/Graphics/Shader.hpp b/include/SFML/Graphics/Shader.hpp
index f2b4dca1a..d3278f9b5 100644
--- a/include/SFML/Graphics/Shader.hpp
+++ b/include/SFML/Graphics/Shader.hpp
@@ -456,6 +456,18 @@ public:
     ////////////////////////////////////////////////////////////
     void setParameter(const std::string& name, CurrentTextureType);
 
+    ////////////////////////////////////////////////////////////
+    /// \brief Get the underlying OpenGL handle of the shader.
+    ///
+    /// You shouldn't need to use this function, unless you have
+    /// very specific stuff to implement that SFML doesn't support,
+    /// or implement a temporary workaround until a bug is fixed.
+    ///
+    /// \return OpenGL handle of the shader or 0 if not yet loaded
+    ///
+    ////////////////////////////////////////////////////////////
+    unsigned int getNativeHandle() const;
+
     ////////////////////////////////////////////////////////////
     /// \brief Bind a shader for rendering
     ///
diff --git a/include/SFML/Graphics/Texture.hpp b/include/SFML/Graphics/Texture.hpp
index 12ea4f269..421861e09 100644
--- a/include/SFML/Graphics/Texture.hpp
+++ b/include/SFML/Graphics/Texture.hpp
@@ -420,6 +420,18 @@ public:
     ////////////////////////////////////////////////////////////
     Texture& operator =(const Texture& right);
 
+    ////////////////////////////////////////////////////////////
+    /// \brief Get the underlying OpenGL handle of the texture.
+    ///
+    /// You shouldn't need to use this function, unless you have
+    /// very specific stuff to implement that SFML doesn't support,
+    /// or implement a temporary workaround until a bug is fixed.
+    ///
+    /// \return OpenGL handle of the texture or 0 if not yet created
+    ///
+    ////////////////////////////////////////////////////////////
+    unsigned int getNativeHandle() const;
+
     ////////////////////////////////////////////////////////////
     /// \brief Bind a texture for rendering
     ///
diff --git a/src/SFML/Graphics/Shader.cpp b/src/SFML/Graphics/Shader.cpp
index 92fd32400..80ca28e1d 100644
--- a/src/SFML/Graphics/Shader.cpp
+++ b/src/SFML/Graphics/Shader.cpp
@@ -456,6 +456,13 @@ void Shader::setParameter(const std::string& name, CurrentTextureType)
 }
 
 
+////////////////////////////////////////////////////////////
+unsigned int Shader::getNativeHandle() const
+{
+    return m_shaderProgram;
+}
+
+
 ////////////////////////////////////////////////////////////
 void Shader::bind(const Shader* shader)
 {
@@ -778,6 +785,13 @@ void Shader::setParameter(const std::string& name, CurrentTextureType)
 }
 
 
+////////////////////////////////////////////////////////////
+unsigned int Shader::getNativeHandle() const
+{
+    return 0;
+}
+
+
 ////////////////////////////////////////////////////////////
 void Shader::bind(const Shader* shader)
 {
diff --git a/src/SFML/Graphics/Texture.cpp b/src/SFML/Graphics/Texture.cpp
index 1dc79cf47..7680cef9a 100644
--- a/src/SFML/Graphics/Texture.cpp
+++ b/src/SFML/Graphics/Texture.cpp
@@ -563,6 +563,13 @@ Texture& Texture::operator =(const Texture& right)
 }
 
 
+////////////////////////////////////////////////////////////
+unsigned int Texture::getNativeHandle() const
+{
+    return m_texture;
+}
+
+
 ////////////////////////////////////////////////////////////
 unsigned int Texture::getValidSize(unsigned int size)
 {