--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/OrthancStone/Sources/Scene2D/Internals/OpenGLColorTextureProgram.cpp	Tue Jul 07 16:21:02 2020 +0200
@@ -0,0 +1,68 @@
+/**
+ * Stone of Orthanc
+ * Copyright (C) 2012-2016 Sebastien Jodogne, Medical Physics
+ * Department, University Hospital of Liege, Belgium
+ * Copyright (C) 2017-2020 Osimis S.A., Belgium
+ *
+ * This program is free software: you can redistribute it and/or
+ * modify it under the terms of the GNU Affero General Public License
+ * as published by the Free Software Foundation, either version 3 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Affero General Public License for more details.
+ * 
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ **/
+
+
+#include "OpenGLColorTextureProgram.h"
+#include "OpenGLShaderVersionDirective.h"
+
+static const char* FRAGMENT_SHADER = 
+  ORTHANC_STONE_OPENGL_SHADER_VERSION_DIRECTIVE
+  "uniform sampler2D u_texture;                       \n"
+  "varying vec2 v_texcoord;                           \n"
+  "void main()                                        \n"
+  "{                                                  \n"
+  "  gl_FragColor = texture2D(u_texture, v_texcoord); \n"
+  "}";
+
+
+namespace OrthancStone
+{
+  namespace Internals
+  {
+    OpenGLColorTextureProgram::OpenGLColorTextureProgram(OpenGL::IOpenGLContext&  context)
+      : program_(context, FRAGMENT_SHADER)
+      , context_(context)
+    {
+    }
+
+    
+    void OpenGLColorTextureProgram::Apply(OpenGL::OpenGLTexture& texture,
+                                          const AffineTransform2D& transform,
+                                          bool useAlpha)
+    {
+      if (!context_.IsContextLost())
+      {
+        OpenGLTextureProgram::Execution execution(program_, texture, transform);
+
+        if (useAlpha)
+        {
+          glEnable(GL_BLEND);
+          glBlendFunc(GL_ONE, GL_ONE_MINUS_SRC_ALPHA);
+          execution.DrawTriangles();
+          glDisable(GL_BLEND);
+        }
+        else
+        {
+          execution.DrawTriangles();
+        }
+      }
+    }
+  }
+}