From 038b62528c49d6176274acbe77500f66422990ed Mon Sep 17 00:00:00 2001
From: Samuel Fadel <samuelfadel@gmail.com>
Date: Wed, 6 Jan 2016 11:41:13 +0100
Subject: Revert "VoronoiSplat: upated to use Qt's FBO wrapper."

This reverts commit 87292bf4cc56194aa6122456d7417fa5f9bd1a09.
---
 voronoisplat.cpp | 9 +++++++--
 voronoisplat.h   | 3 +--
 2 files changed, 8 insertions(+), 4 deletions(-)

diff --git a/voronoisplat.cpp b/voronoisplat.cpp
index 9c95950..7695d97 100644
--- a/voronoisplat.cpp
+++ b/voronoisplat.cpp
@@ -2,6 +2,9 @@
 
 #include <algorithm>
 
+#include <QQuickWindow>
+#include <QOpenGLFramebufferObject>
+
 #include "scale.h"
 #include "skelft.h"
 
@@ -21,13 +24,13 @@ static int nextPow2(int n)
 
 VoronoiSplatTexture::VoronoiSplatTexture(const QSize &size)
     : gl(QOpenGLContext::currentContext())
-    , m_FBO(size)
     , m_cmap(3*COLORMAP_SAMPLES)
 {
     int baseSize = nextPow2(std::min(size.width(), size.height()));
     m_size.setWidth(baseSize);
     m_size.setHeight(baseSize);
 
+    gl.glGenFramebuffers(1, &m_FBO);
     setupShaders();
     setupVAOs();
     setupTextures();
@@ -202,6 +205,8 @@ VoronoiSplatTexture::~VoronoiSplatTexture()
     gl.glDeleteTextures(1, &m_colormapTex);
     gl.glDeleteTextures(1, &m_tex);
 
+    gl.glDeleteFramebuffers(1, &m_FBO);
+
     delete m_program1;
     delete m_program2;
 }
@@ -229,7 +234,7 @@ bool VoronoiSplatTexture::updateTexture()
         updateColormap();
     }
 
-    m_FBO.bind();
+    gl.glBindFramebuffer(GL_FRAMEBUFFER, m_FBO);
 
     // The first pass
     m_program1->bind();
diff --git a/voronoisplat.h b/voronoisplat.h
index 29c7f47..78dfd3e 100644
--- a/voronoisplat.h
+++ b/voronoisplat.h
@@ -3,7 +3,6 @@
 
 #include <QSGDynamicTexture>
 #include <QOpenGLFunctions>
-#include <QOpenGLFramebufferObject>
 #include <QOpenGLShaderProgram>
 #include <QOpenGLVertexArrayObject>
 #include <armadillo>
@@ -49,7 +48,7 @@ private:
 
     QOpenGLFunctions gl;
     QOpenGLShaderProgram *m_program1, *m_program2;
-    QOpenGLFramebufferObject m_FBO;
+    GLuint m_FBO;
     GLuint m_VBOs[3];
     GLuint m_textures[2], m_colormapTex, m_tex;
     QOpenGLVertexArrayObject m_sitesVAO, m_2ndPassVAO;
-- 
cgit v1.2.3