Fixed a bugg with RenderState.

Renderstate now also handles the Frambuffer binding.

src/Engine/Rendering/RenderState.cpp

@@ -2,6 +2,7 @@
 
 RenderState::RenderState()
 {
+
 }
 
 bool RenderState::Enable(GLenum GLEnable)
@@ -30,12 +31,11 @@ bool RenderState::CullFace(GLenum GLCullFace)
     
     GLint a;
     glGetIntegerv(GL_CULL_FACE_MODE, &a);
-    if(a == GL_BACK)
+    if(a != GL_BACK)
     {
         //LOG_INFO("Setting Cullface to back, unessesary since this is already default.");
+        glCullFace(GLCullFace);
     }
-    m_preCullFace = a;
-    glCullFace(GLCullFace);
     if (GLERROR("RenderState::CullFace"))
     {
         return false;
@@ -62,20 +62,50 @@ bool RenderState::Clear(GLbitfield mask)
     return true;
 }
 
+bool RenderState::BindBuffer(GLint buffer)
+{
+    glGetIntegerv(GL_FRAMEBUFFER_BINDING, &m_preBuffer);
+    if (buffer == m_preBuffer)
+    {
+        return true;
+    }
+    glBindFramebuffer(GL_FRAMEBUFFER, buffer);
+    if (GLERROR("RenderState::BindBuffer"))
+    {
+        printf("BufferID: %i\npreBufferID: %i\n", buffer, m_preBuffer);
+        return false;
+    }
+    return true;
+}
+
 RenderState::~RenderState()
 {
+    GLERROR("RenderState::~RenderState Pre");
+    GLint n_buffer = -1;
+    glGetIntegerv(GL_FRAMEBUFFER_BINDING, &n_buffer);
+
     //Set cullface to default
-    glCullFace(m_preCullFace);
+    if (glIsEnabled(GL_CULL_FACE)) {
+        glCullFace(GL_BACK);
+    }
+    GLERROR("RenderState::~RenderState glCullFace");
 
     //Set color to default
     glClearColor(m_preClearColor[0], m_preClearColor[1], m_preClearColor[2], m_preClearColor[3]);
+    GLERROR("RenderState::~RenderState glClearColor");
 
     //Disable Enables
     for (auto i : m_Enables)
     {
         glDisable(i);
     }
+    GLERROR("RenderState::~RenderState glDisable");
 
+    if(m_preBuffer != 0)
+    {
+        glBindFramebuffer(GL_FRAMEBUFFER, 0);
+    }
     m_Enables.clear();
+    GLERROR("RenderState::~RenderState glBindFramebuffer");
 }